/* * marshal.c: Routines for marshaling complex types in P/Invoke methods. * * Author: * Paolo Molaro (lupus@ximian.com) * * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com) * Copyright 2004-2009 Novell, Inc (http://www.novell.com) * Copyright 2011 Xamarin, Inc (http://www.xamarin.com) * */ #include "config.h" #ifdef HAVE_ALLOCA_H #include #endif #include "object.h" #include "loader.h" #include "cil-coff.h" #include "metadata/marshal.h" #include "metadata/method-builder.h" #include "metadata/tabledefs.h" #include "metadata/exception.h" #include "metadata/appdomain.h" #include "mono/metadata/debug-helpers.h" #include "mono/metadata/threadpool.h" #include "mono/metadata/threads.h" #include "mono/metadata/monitor.h" #include "mono/metadata/metadata-internals.h" #include "mono/metadata/domain-internals.h" #include "mono/metadata/gc-internal.h" #include "mono/metadata/threads-types.h" #include "mono/metadata/string-icalls.h" #include "mono/metadata/attrdefs.h" #include "mono/metadata/gc-internal.h" #include "mono/metadata/cominterop.h" #include "mono/utils/mono-counters.h" #include "mono/utils/mono-tls.h" #include "mono/utils/mono-memory-model.h" #include "mono/utils/atomic.h" #include #include /* #define DEBUG_RUNTIME_CODE */ #define OPDEF(a,b,c,d,e,f,g,h,i,j) \ a = i, typedef enum { MONO_MARSHAL_NONE, /* No marshalling needed */ MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */ MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */ MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */ } MonoXDomainMarshalType; enum { #include "mono/cil/opcode.def" LAST = 0xff }; #undef OPDEF struct _MonoRemotingMethods { MonoMethod *invoke; MonoMethod *invoke_with_check; MonoMethod *xdomain_invoke; MonoMethod *xdomain_dispatch; }; typedef struct _MonoRemotingMethods MonoRemotingMethods; /* * This mutex protects the various marshalling related caches in MonoImage * and a few other data structures static to this file. * * The marshal lock is a non-recursive complex lock that sits below the domain lock in the * runtime locking latice. Which means it can take simple locks suck as the image lock. */ #define mono_marshal_lock() mono_locks_acquire (&marshal_mutex, MarshalLock) #define mono_marshal_unlock() mono_locks_release (&marshal_mutex, MarshalLock) static CRITICAL_SECTION marshal_mutex; static gboolean marshal_mutex_initialized; static MonoNativeTlsKey last_error_tls_id; static MonoNativeTlsKey load_type_info_tls_id; static gboolean use_aot_wrappers; static void delegate_hash_table_add (MonoDelegate *d); static void emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object); static void emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding); static void mono_struct_delete_old (MonoClass *klass, char *ptr); MONO_API void * mono_marshal_string_to_utf16 (MonoString *s); static void * mono_marshal_string_to_utf16_copy (MonoString *s); static gpointer mono_string_to_lpstr (MonoString *string_obj); static MonoStringBuilder * mono_string_utf8_to_builder2 (char *text); static MonoStringBuilder * mono_string_utf16_to_builder2 (gunichar2 *text); static MonoString* mono_string_new_len_wrapper (const char *text, guint length); static MonoString * mono_string_from_byvalwstr (gunichar2 *data, int len); static void mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum); static void mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum); static void mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum); static void mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum); static MonoAsyncResult * mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params); static MonoObject * mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params); static void mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst); static gint32 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push); static gboolean mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image); #ifndef DISABLE_REMOTING static MonoObject * mono_remoting_wrapper (MonoMethod *method, gpointer *params); MONO_API void mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy); #endif static MonoReflectionType * type_from_handle (MonoType *handle); static void mono_marshal_set_last_error_windows (int error); static void init_safe_handle (void); /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */ static MonoMethod *sh_dangerous_add_ref; static MonoMethod *sh_dangerous_release; static void init_safe_handle () { sh_dangerous_add_ref = mono_class_get_method_from_name ( mono_defaults.safehandle_class, "DangerousAddRef", 1); sh_dangerous_release = mono_class_get_method_from_name ( mono_defaults.safehandle_class, "DangerousRelease", 0); } static void register_icall (gpointer func, const char *name, const char *sigstr, gboolean save) { MonoMethodSignature *sig = mono_create_icall_signature (sigstr); mono_register_jit_icall (func, name, sig, save); } static MonoMethodSignature* signature_dup (MonoImage *image, MonoMethodSignature *sig) { MonoMethodSignature *res; int sigsize; res = mono_metadata_signature_alloc (image, sig->param_count); sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *); memcpy (res, sig, sigsize); return res; } MonoMethodSignature* mono_signature_no_pinvoke (MonoMethod *method) { MonoMethodSignature *sig = mono_method_signature (method); if (sig->pinvoke) { sig = signature_dup (method->klass->image, sig); sig->pinvoke = FALSE; } return sig; } void mono_marshal_init_tls (void) { mono_native_tls_alloc (&last_error_tls_id, NULL); mono_native_tls_alloc (&load_type_info_tls_id, NULL); } void mono_marshal_init (void) { static gboolean module_initialized = FALSE; if (!module_initialized) { module_initialized = TRUE; InitializeCriticalSection (&marshal_mutex); marshal_mutex_initialized = TRUE; register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE); register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE); register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE); register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE); register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE); register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE); register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE); register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE); register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE); register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE); register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE); register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE); register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE); register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE); register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE); register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE); register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE); register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE); register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE); register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE); register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE); register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE); register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE); register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE); register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE); register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE); register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE); register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE); register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE); register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE); register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE); register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE); register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE); register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE); register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE); register_icall (g_free, "g_free", "void ptr", FALSE); register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE); register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE); register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE); register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE); register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE); register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE); register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE); register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE); register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE); register_icall (mono_context_get, "mono_context_get", "object", FALSE); register_icall (mono_context_set, "mono_context_set", "void object", FALSE); register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE); register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE); register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE); #ifndef DISABLE_REMOTING register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE); register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE); #endif mono_cominterop_init (); } } void mono_marshal_cleanup (void) { mono_cominterop_cleanup (); mono_native_tls_free (load_type_info_tls_id); mono_native_tls_free (last_error_tls_id); DeleteCriticalSection (&marshal_mutex); marshal_mutex_initialized = FALSE; } #ifndef DISABLE_REMOTING static MonoClass *byte_array_class; static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target; static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc; static void mono_remoting_marshal_init (void) { MonoClass *klass; static gboolean module_initialized = FALSE; if (!module_initialized) { klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices"); method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1); method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1); method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1); klass = mono_defaults.real_proxy_class; method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1); klass = mono_defaults.exception_class; method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1); byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1); klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext"); method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1); klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context"); method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1); module_initialized = TRUE; } } #endif gpointer mono_delegate_to_ftnptr (MonoDelegate *delegate) { MonoMethod *method, *wrapper; MonoClass *klass; uint32_t target_handle = 0; if (!delegate) return NULL; if (delegate->delegate_trampoline) return delegate->delegate_trampoline; klass = ((MonoObject *)delegate)->vtable->klass; g_assert (klass->delegate); method = delegate->method; if (mono_method_signature (method)->pinvoke) { const char *exc_class, *exc_arg; gpointer ftnptr; ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg); if (!ftnptr) { g_assert (exc_class); mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg)); } return ftnptr; } if (delegate->target) { /* Produce a location which can be embedded in JITted code */ target_handle = mono_gchandle_new_weakref (delegate->target, FALSE); } wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle); delegate->delegate_trampoline = mono_compile_method (wrapper); // Add the delegate to the delegate hash table delegate_hash_table_add (delegate); /* when the object is collected, collect the dynamic method, too */ mono_object_register_finalizer ((MonoObject*)delegate); return delegate->delegate_trampoline; } /* * this hash table maps from a delegate trampoline object to a weak reference * of the delegate. As an optimizations with a non-moving GC we store the * object pointer itself, otherwise we use a GC handle. */ static GHashTable *delegate_hash_table; static GHashTable * delegate_hash_table_new (void) { return g_hash_table_new (NULL, NULL); } static void delegate_hash_table_remove (MonoDelegate *d) { guint32 gchandle = 0; mono_marshal_lock (); if (delegate_hash_table == NULL) delegate_hash_table = delegate_hash_table_new (); if (mono_gc_is_moving ()) gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline)); g_hash_table_remove (delegate_hash_table, d->delegate_trampoline); mono_marshal_unlock (); if (mono_gc_is_moving ()) mono_gchandle_free (gchandle); } static void delegate_hash_table_add (MonoDelegate *d) { guint32 gchandle; guint32 old_gchandle; mono_marshal_lock (); if (delegate_hash_table == NULL) delegate_hash_table = delegate_hash_table_new (); if (mono_gc_is_moving ()) { gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE); old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline)); g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle)); if (old_gchandle) mono_gchandle_free (old_gchandle); } else { g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d); } mono_marshal_unlock (); } /* * mono_marshal_use_aot_wrappers: * * Instructs this module to use AOT compatible wrappers. */ void mono_marshal_use_aot_wrappers (gboolean use) { use_aot_wrappers = use; } static void parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo) { static MonoClass *UnmanagedFunctionPointerAttribute; MonoCustomAttrInfo *cinfo; MonoReflectionUnmanagedFunctionPointerAttribute *attr; if (!UnmanagedFunctionPointerAttribute) UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute"); /* The attribute is only available in Net 2.0 */ if (UnmanagedFunctionPointerAttribute) { /* * The pinvoke attributes are stored in a real custom attribute so we have to * construct it. */ cinfo = mono_custom_attrs_from_class (klass); if (cinfo && !mono_runtime_get_no_exec ()) { attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute); if (attr) { piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error; } if (!cinfo->cached) mono_custom_attrs_free (cinfo); } } } MonoDelegate* mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn) { guint32 gchandle; MonoDelegate *d; if (ftn == NULL) return NULL; mono_marshal_lock (); if (delegate_hash_table == NULL) delegate_hash_table = delegate_hash_table_new (); if (mono_gc_is_moving ()) { gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn)); mono_marshal_unlock (); if (gchandle) d = (MonoDelegate*)mono_gchandle_get_target (gchandle); else d = NULL; } else { d = g_hash_table_lookup (delegate_hash_table, ftn); mono_marshal_unlock (); } if (d == NULL) { /* This is a native function, so construct a delegate for it */ MonoMethodSignature *sig; MonoMethod *wrapper; MonoMarshalSpec **mspecs; MonoMethod *invoke = mono_get_delegate_invoke (klass); MonoMethodPInvoke piinfo; MonoObject *this; int i; if (use_aot_wrappers) { wrapper = mono_marshal_get_native_func_wrapper_aot (klass); this = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn); } else { memset (&piinfo, 0, sizeof (piinfo)); parse_unmanaged_function_pointer_attr (klass, &piinfo); mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1); mono_method_get_marshal_info (invoke, mspecs); /* Freed below so don't alloc from mempool */ sig = mono_metadata_signature_dup (mono_method_signature (invoke)); sig->hasthis = 0; wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn); this = NULL; for (i = mono_method_signature (invoke)->param_count; i >= 0; i--) if (mspecs [i]) mono_metadata_free_marshal_spec (mspecs [i]); g_free (mspecs); g_free (sig); } d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass); mono_delegate_ctor_with_method ((MonoObject*)d, this, mono_compile_method (wrapper), wrapper); } if (d->object.vtable->domain != mono_domain_get ()) mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain")); return d; } void mono_delegate_free_ftnptr (MonoDelegate *delegate) { MonoJitInfo *ji; void *ptr; delegate_hash_table_remove (delegate); ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL); if (!delegate->target) { /* The wrapper method is shared between delegates -> no need to free it */ return; } if (ptr) { uint32_t gchandle; void **method_data; MonoMethod *method; ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr)); g_assert (ji); method = mono_jit_info_get_method (ji); method_data = ((MonoMethodWrapper*)method)->method_data; /*the target gchandle is the first entry after size and the wrapper itself.*/ gchandle = GPOINTER_TO_UINT (method_data [2]); if (gchandle) mono_gchandle_free (gchandle); mono_runtime_free_method (mono_object_domain (delegate), method); } } static MonoString * mono_string_from_byvalwstr (gunichar2 *data, int max_len) { MonoDomain *domain = mono_domain_get (); int len = 0; if (!data) return NULL; while (data [len]) len++; return mono_string_new_utf16 (domain, data, MIN (len, max_len)); } gpointer mono_array_to_savearray (MonoArray *array) { if (!array) return NULL; g_assert_not_reached (); return NULL; } gpointer mono_array_to_lparray (MonoArray *array) { #ifndef DISABLE_COM gpointer *nativeArray = NULL; int nativeArraySize = 0; int i = 0; MonoClass *klass; #endif if (!array) return NULL; #ifndef DISABLE_COM klass = array->obj.vtable->klass; switch (klass->element_class->byval_arg.type) { case MONO_TYPE_VOID: g_assert_not_reached (); break; case MONO_TYPE_CLASS: nativeArraySize = array->max_length; nativeArray = malloc(sizeof(gpointer) * nativeArraySize); for(i = 0; i < nativeArraySize; ++i) nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]); return nativeArray; case MONO_TYPE_U1: case MONO_TYPE_BOOLEAN: case MONO_TYPE_I1: case MONO_TYPE_U2: case MONO_TYPE_CHAR: case MONO_TYPE_I2: case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_U8: case MONO_TYPE_I8: case MONO_TYPE_R4: case MONO_TYPE_R8: case MONO_TYPE_VALUETYPE: case MONO_TYPE_PTR: /* nothing to do */ break; case MONO_TYPE_GENERICINST: case MONO_TYPE_OBJECT: case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: case MONO_TYPE_STRING: default: g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type); g_assert_not_reached (); } #endif return array->vector; } void mono_free_lparray (MonoArray *array, gpointer* nativeArray) { #ifndef DISABLE_COM MonoClass *klass; int i = 0; if (!array) return; if (!nativeArray) return; klass = array->obj.vtable->klass; switch (klass->element_class->byval_arg.type) { case MONO_TYPE_CLASS: for(i = 0; i < array->max_length; ++i) mono_marshal_free_ccw(nativeArray[i]); free(nativeArray); break; } #endif } static void mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum) { g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class); if (elclass == mono_defaults.byte_class) { GError *error = NULL; guint16 *ut; glong items_written; ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error); if (!error) { memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16)); g_free (ut); } else g_error_free (error); } else g_assert_not_reached (); } static void mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum) { mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum); } static void mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum) { g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class); if (elclass == mono_defaults.byte_class) { char *as; GError *error = NULL; as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error); if (error) { MonoException *exc = mono_get_exception_argument ("string", error->message); g_error_free (error); mono_raise_exception (exc); } memcpy (native_arr, as, MIN (strlen (as), elnum)); g_free (as); } else { g_assert_not_reached (); } } static void mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum) { mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum); } void mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text) { GError *error = NULL; guint16 *ut; glong items_written; int l; if (!sb || !text) return; l = strlen (text); ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error); if (items_written > mono_stringbuilder_capacity (sb)) items_written = mono_stringbuilder_capacity (sb); if (!error) { if (! sb->str || sb->str == sb->cached_str) MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written)); memcpy (mono_string_chars (sb->str), ut, items_written * 2); sb->length = items_written; sb->cached_str = NULL; } else g_error_free (error); g_free (ut); } MonoStringBuilder * mono_string_utf8_to_builder2 (char *text) { int l; MonoStringBuilder *sb; static MonoClass *string_builder_class; static MonoMethod *sb_ctor; void *args [1]; MonoObject *exc; if (!text) return NULL; if (!string_builder_class) { MonoMethodDesc *desc; string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder"); g_assert (string_builder_class); desc = mono_method_desc_new (":.ctor(int)", FALSE); sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class); g_assert (sb_ctor); mono_method_desc_free (desc); } l = strlen (text); sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class); g_assert (sb); args [0] = &l; mono_runtime_invoke (sb_ctor, sb, args, &exc); g_assert (!exc); mono_string_utf8_to_builder (sb, text); return sb; } /* * FIXME: This routine does not seem to do what it seems to do * the @text is never copied into the string builder */ void mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text) { guint32 len; if (!sb || !text) return; g_assert (mono_string_chars (sb->str) == text); for (len = 0; text [len] != 0; ++len) ; sb->length = len; } MonoStringBuilder * mono_string_utf16_to_builder2 (gunichar2 *text) { int len; MonoStringBuilder *sb; static MonoClass *string_builder_class; static MonoMethod *sb_ctor; void *args [1]; MonoObject *exc; if (!text) return NULL; if (!string_builder_class) { MonoMethodDesc *desc; string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder"); g_assert (string_builder_class); desc = mono_method_desc_new (":.ctor(int)", FALSE); sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class); g_assert (sb_ctor); mono_method_desc_free (desc); } for (len = 0; text [len] != 0; ++len) ; sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class); g_assert (sb); args [0] = &len; mono_runtime_invoke (sb_ctor, sb, args, &exc); g_assert (!exc); sb->length = len; memcpy (mono_string_chars (sb->str), text, len * 2); return sb; } /** * mono_string_builder_to_utf8: * @sb: the string builder * * Converts to utf8 the contents of the MonoStringBuilder. * * Returns: a utf8 string with the contents of the StringBuilder. * * The return value must be released with g_free. */ gpointer mono_string_builder_to_utf8 (MonoStringBuilder *sb) { GError *error = NULL; gchar *tmp, *res = NULL; if (!sb) return NULL; if ((sb->str == sb->cached_str) && (sb->str->length == 0)) { /* * The sb could have been allocated with the default capacity and be empty. * we need to alloc a buffer of the default capacity in this case. */ MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16)); sb->cached_str = NULL; } tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error); if (error) { g_error_free (error); mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8")); } else { res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1); memcpy (res, tmp, sb->length + 1); g_free (tmp); } return res; } /** * mono_string_builder_to_utf16: * @sb: the string builder * * Converts to utf16 the contents of the MonoStringBuilder. * * Returns: a utf16 string with the contents of the StringBuilder. * * The return value must not be freed. */ gpointer mono_string_builder_to_utf16 (MonoStringBuilder *sb) { if (!sb) return NULL; g_assert (sb->str); /* * The stringbuilder might not have ownership of this string. If this is * the case, we must duplicate the string, so that we don't munge immutable * strings */ if (sb->str == sb->cached_str) { /* * The sb could have been allocated with the default capacity and be empty. * we need to alloc a buffer of the default capacity in this case. */ if (sb->str->length == 0) MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16)); else MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb))); sb->cached_str = NULL; } if (sb->length == 0) *(mono_string_chars (sb->str)) = '\0'; return mono_string_chars (sb->str); } static gpointer mono_string_to_lpstr (MonoString *s) { #ifdef TARGET_WIN32 char *as, *tmp; glong len; GError *error = NULL; if (s == NULL) return NULL; if (!s->length) { as = CoTaskMemAlloc (1); as [0] = '\0'; return as; } tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error); if (error) { MonoException *exc = mono_get_exception_argument ("string", error->message); g_error_free (error); mono_raise_exception(exc); return NULL; } else { as = CoTaskMemAlloc (len + 1); memcpy (as, tmp, len + 1); g_free (tmp); return as; } #else return mono_string_to_utf8 (s); #endif } gpointer mono_string_to_ansibstr (MonoString *string_obj) { g_error ("UnmanagedMarshal.BStr is not implemented."); return NULL; } /** * mono_string_to_byvalstr: * @dst: Where to store the null-terminated utf8 decoded string. * @src: the MonoString to copy. * @size: the maximum number of bytes to copy. * * Copies the MonoString pointed to by @src as a utf8 string * into @dst, it copies at most @size bytes into the destination. */ void mono_string_to_byvalstr (gpointer dst, MonoString *src, int size) { char *s; int len; g_assert (dst != NULL); g_assert (size > 0); memset (dst, 0, size); if (!src) return; s = mono_string_to_utf8 (src); len = MIN (size, strlen (s)); if (len >= size) len--; memcpy (dst, s, len); g_free (s); } /** * mono_string_to_byvalwstr: * @dst: Where to store the null-terminated utf16 decoded string. * @src: the MonoString to copy. * @size: the maximum number of bytes to copy. * * Copies the MonoString pointed to by @src as a utf16 string into * @dst, it copies at most @size bytes into the destination (including * a terminating 16-bit zero terminator). */ void mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size) { int len; g_assert (dst != NULL); g_assert (size > 1); if (!src) { memset (dst, 0, size * 2); return; } len = MIN (size, (mono_string_length (src))); memcpy (dst, mono_string_chars (src), size * 2); if (size <= mono_string_length (src)) len--; *((gunichar2 *) dst + len) = 0; } static MonoString* mono_string_new_len_wrapper (const char *text, guint length) { return mono_string_new_len (mono_domain_get (), text, length); } #ifndef DISABLE_JIT #ifndef DISABLE_REMOTING static int mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code) { int pos; mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST); mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class)); pos = mono_mb_emit_branch (mb, branch_code); return pos; } static int mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code) { int pos; mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp)); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id)); mono_mb_emit_byte (mb, CEE_LDIND_I4); mono_mb_emit_icon (mb, -1); pos = mono_mb_emit_branch (mb, branch_code); return pos; } static int mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code) { static int offset = -1; static guint8 mask; if (offset < 0) mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class)); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class)); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_ldflda (mb, offset); mono_mb_emit_byte (mb, CEE_LDIND_U1); mono_mb_emit_icon (mb, mask); mono_mb_emit_byte (mb, CEE_AND); mono_mb_emit_icon (mb, 0); return mono_mb_emit_branch (mb, branch_code); } #endif /* DISABLE_REMOTING */ /* * mono_mb_emit_exception_marshal_directive: * * This function assumes ownership of MSG, which should be malloc-ed. */ static void mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg) { char *s; if (!mb->dynamic) { s = mono_image_strdup (mb->method->klass->image, msg); g_free (msg); } else { s = g_strdup (msg); } mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s); } #endif /* !DISABLE_JIT */ guint mono_type_to_ldind (MonoType *type) { if (type->byref) return CEE_LDIND_I; handle_enum: switch (type->type) { case MONO_TYPE_I1: return CEE_LDIND_I1; case MONO_TYPE_U1: case MONO_TYPE_BOOLEAN: return CEE_LDIND_U1; case MONO_TYPE_I2: return CEE_LDIND_I2; case MONO_TYPE_U2: case MONO_TYPE_CHAR: return CEE_LDIND_U2; case MONO_TYPE_I4: return CEE_LDIND_I4; case MONO_TYPE_U4: return CEE_LDIND_U4; case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_PTR: case MONO_TYPE_FNPTR: return CEE_LDIND_I; case MONO_TYPE_CLASS: case MONO_TYPE_STRING: case MONO_TYPE_OBJECT: case MONO_TYPE_SZARRAY: case MONO_TYPE_ARRAY: return CEE_LDIND_REF; case MONO_TYPE_I8: case MONO_TYPE_U8: return CEE_LDIND_I8; case MONO_TYPE_R4: return CEE_LDIND_R4; case MONO_TYPE_R8: return CEE_LDIND_R8; case MONO_TYPE_VALUETYPE: if (type->data.klass->enumtype) { type = mono_class_enum_basetype (type->data.klass); goto handle_enum; } return CEE_LDOBJ; case MONO_TYPE_TYPEDBYREF: return CEE_LDOBJ; case MONO_TYPE_GENERICINST: type = &type->data.generic_class->container_class->byval_arg; goto handle_enum; default: g_error ("unknown type 0x%02x in type_to_ldind", type->type); } return -1; } guint mono_type_to_stind (MonoType *type) { if (type->byref) return CEE_STIND_I; handle_enum: switch (type->type) { case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_BOOLEAN: return CEE_STIND_I1; case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_CHAR: return CEE_STIND_I2; case MONO_TYPE_I4: case MONO_TYPE_U4: return CEE_STIND_I4; case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_PTR: case MONO_TYPE_FNPTR: return CEE_STIND_I; case MONO_TYPE_CLASS: case MONO_TYPE_STRING: case MONO_TYPE_OBJECT: case MONO_TYPE_SZARRAY: case MONO_TYPE_ARRAY: return CEE_STIND_REF; case MONO_TYPE_I8: case MONO_TYPE_U8: return CEE_STIND_I8; case MONO_TYPE_R4: return CEE_STIND_R4; case MONO_TYPE_R8: return CEE_STIND_R8; case MONO_TYPE_VALUETYPE: if (type->data.klass->enumtype) { type = mono_class_enum_basetype (type->data.klass); goto handle_enum; } return CEE_STOBJ; case MONO_TYPE_TYPEDBYREF: return CEE_STOBJ; case MONO_TYPE_GENERICINST: type = &type->data.generic_class->container_class->byval_arg; goto handle_enum; default: g_error ("unknown type 0x%02x in type_to_stind", type->type); } return -1; } #ifndef DISABLE_JIT static void emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec) { switch (conv) { case MONO_MARSHAL_CONV_BOOL_I4: mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_I4); mono_mb_emit_byte (mb, CEE_BRFALSE_S); mono_mb_emit_byte (mb, 3); mono_mb_emit_byte (mb, CEE_LDC_I4_1); mono_mb_emit_byte (mb, CEE_BR_S); mono_mb_emit_byte (mb, 1); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_byte (mb, CEE_STIND_I1); break; case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL: mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_I2); mono_mb_emit_byte (mb, CEE_BRFALSE_S); mono_mb_emit_byte (mb, 3); mono_mb_emit_byte (mb, CEE_LDC_I4_1); mono_mb_emit_byte (mb, CEE_BR_S); mono_mb_emit_byte (mb, 1); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_byte (mb, CEE_STIND_I1); break; case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: { MonoClass *eklass = NULL; int esize; if (type->type == MONO_TYPE_SZARRAY) { eklass = type->data.klass; } else { g_assert_not_reached (); } esize = mono_class_native_size (eklass, NULL); /* create a new array */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_icon (mb, mspec->data.array_data.num_elem); mono_mb_emit_op (mb, CEE_NEWARR, eklass); mono_mb_emit_byte (mb, CEE_STIND_I); if (eklass->blittable) { /* copy the elements */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_CPBLK); } else { int array_var, src_var, dst_var, index_var; guint32 label2, label3; array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* set array_var */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_stloc (mb, array_var); /* save the old src pointer */ mono_mb_emit_ldloc (mb, 0); mono_mb_emit_stloc (mb, src_var); /* save the old dst pointer */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_stloc (mb, dst_var); /* Emit marshalling loop */ index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_stloc (mb, index_var); /* Loop header */ label2 = mono_mb_get_label (mb); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_ldloc (mb, array_var); mono_mb_emit_byte (mb, CEE_LDLEN); label3 = mono_mb_emit_branch (mb, CEE_BGE); /* src is already set */ /* Set dst */ mono_mb_emit_ldloc (mb, array_var); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_op (mb, CEE_LDELEMA, eklass); mono_mb_emit_stloc (mb, 1); /* Do the conversion */ emit_struct_conv (mb, eklass, TRUE); /* Loop footer */ mono_mb_emit_add_to_local (mb, index_var, 1); mono_mb_emit_branch_label (mb, CEE_BR, label2); mono_mb_patch_branch (mb, label3); /* restore the old src pointer */ mono_mb_emit_ldloc (mb, src_var); mono_mb_emit_stloc (mb, 0); /* restore the old dst pointer */ mono_mb_emit_ldloc (mb, dst_var); mono_mb_emit_stloc (mb, 1); } break; } case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: { MonoClass *eclass = mono_defaults.char_class; /* create a new array */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_icon (mb, mspec->data.array_data.num_elem); mono_mb_emit_op (mb, CEE_NEWARR, eclass); mono_mb_emit_byte (mb, CEE_STIND_REF); mono_mb_emit_ldloc (mb, 1); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_icon (mb, mspec->data.array_data.num_elem); mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array); break; } case MONO_MARSHAL_CONV_STR_BYVALSTR: mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_icall (mb, mono_string_new_wrapper); mono_mb_emit_byte (mb, CEE_STIND_REF); break; case MONO_MARSHAL_CONV_STR_BYVALWSTR: if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) { mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_icon (mb, mspec->data.array_data.num_elem); mono_mb_emit_icall (mb, mono_string_from_byvalwstr); } else { mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_icall (mb, mono_string_from_utf16); } mono_mb_emit_byte (mb, CEE_STIND_REF); break; case MONO_MARSHAL_CONV_STR_LPTSTR: mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_I); #ifdef TARGET_WIN32 mono_mb_emit_icall (mb, mono_string_from_utf16); #else mono_mb_emit_icall (mb, mono_string_new_wrapper); #endif mono_mb_emit_byte (mb, CEE_STIND_REF); break; case MONO_MARSHAL_CONV_STR_LPSTR: mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icall (mb, mono_string_new_wrapper); mono_mb_emit_byte (mb, CEE_STIND_REF); break; case MONO_MARSHAL_CONV_STR_LPWSTR: mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icall (mb, mono_string_from_utf16); mono_mb_emit_byte (mb, CEE_STIND_REF); break; case MONO_MARSHAL_CONV_OBJECT_STRUCT: { MonoClass *klass = mono_class_from_mono_type (type); int src_var, dst_var; src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* *dst = new object */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass); mono_mb_emit_byte (mb, CEE_STIND_REF); /* save the old src pointer */ mono_mb_emit_ldloc (mb, 0); mono_mb_emit_stloc (mb, src_var); /* save the old dst pointer */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_stloc (mb, dst_var); /* dst = pointer to newly created object data */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icon (mb, sizeof (MonoObject)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_stloc (mb, 1); emit_struct_conv (mb, klass, TRUE); /* restore the old src pointer */ mono_mb_emit_ldloc (mb, src_var); mono_mb_emit_stloc (mb, 0); /* restore the old dst pointer */ mono_mb_emit_ldloc (mb, dst_var); mono_mb_emit_stloc (mb, 1); break; } case MONO_MARSHAL_CONV_DEL_FTN: { MonoClass *klass = mono_class_from_mono_type (type); mono_mb_emit_ldloc (mb, 1); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icall (mb, mono_ftnptr_to_delegate); mono_mb_emit_byte (mb, CEE_STIND_REF); break; } case MONO_MARSHAL_CONV_ARRAY_LPARRAY: g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name); break; #ifndef DISABLE_COM case MONO_MARSHAL_CONV_OBJECT_INTERFACE: case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec); break; #endif /* DISABLE_COM */ case MONO_MARSHAL_CONV_SAFEHANDLE: { /* * Passing SafeHandles as ref does not allow the unmanaged code * to change the SafeHandle value. If the value is changed, * we should issue a diagnostic exception (NotSupportedException) * that informs the user that changes to handles in unmanaged code * is not supported. * * Since we currently have no access to the original * SafeHandle that was used during the marshalling, * for now we just ignore this, and ignore/discard any * changes that might have happened to the handle. */ break; } case MONO_MARSHAL_CONV_HANDLEREF: { /* * Passing HandleRefs in a struct that is ref()ed does not * copy the values back to the HandleRef */ break; } case MONO_MARSHAL_CONV_STR_BSTR: case MONO_MARSHAL_CONV_STR_ANSIBSTR: case MONO_MARSHAL_CONV_STR_TBSTR: case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY: default: { char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv); mono_mb_emit_exception_marshal_directive (mb, msg); break; } } } static gpointer conv_to_icall (MonoMarshalConv conv) { switch (conv) { case MONO_MARSHAL_CONV_STR_LPWSTR: return mono_marshal_string_to_utf16; case MONO_MARSHAL_CONV_LPWSTR_STR: return mono_string_from_utf16; case MONO_MARSHAL_CONV_LPTSTR_STR: return mono_string_new_wrapper; case MONO_MARSHAL_CONV_LPSTR_STR: return mono_string_new_wrapper; case MONO_MARSHAL_CONV_STR_LPTSTR: #ifdef TARGET_WIN32 return mono_marshal_string_to_utf16; #else return mono_string_to_lpstr; #endif case MONO_MARSHAL_CONV_STR_LPSTR: return mono_string_to_lpstr; case MONO_MARSHAL_CONV_STR_BSTR: return mono_string_to_bstr; case MONO_MARSHAL_CONV_BSTR_STR: return mono_string_from_bstr; case MONO_MARSHAL_CONV_STR_TBSTR: case MONO_MARSHAL_CONV_STR_ANSIBSTR: return mono_string_to_ansibstr; case MONO_MARSHAL_CONV_SB_LPSTR: return mono_string_builder_to_utf8; case MONO_MARSHAL_CONV_SB_LPTSTR: #ifdef TARGET_WIN32 return mono_string_builder_to_utf16; #else return mono_string_builder_to_utf8; #endif case MONO_MARSHAL_CONV_SB_LPWSTR: return mono_string_builder_to_utf16; case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY: return mono_array_to_savearray; case MONO_MARSHAL_CONV_ARRAY_LPARRAY: return mono_array_to_lparray; case MONO_MARSHAL_FREE_LPARRAY: return mono_free_lparray; case MONO_MARSHAL_CONV_DEL_FTN: return mono_delegate_to_ftnptr; case MONO_MARSHAL_CONV_FTN_DEL: return mono_ftnptr_to_delegate; case MONO_MARSHAL_CONV_LPSTR_SB: return mono_string_utf8_to_builder; case MONO_MARSHAL_CONV_LPTSTR_SB: #ifdef TARGET_WIN32 return mono_string_utf16_to_builder; #else return mono_string_utf8_to_builder; #endif case MONO_MARSHAL_CONV_LPWSTR_SB: return mono_string_utf16_to_builder; case MONO_MARSHAL_FREE_ARRAY: return mono_marshal_free_array; case MONO_MARSHAL_CONV_STR_BYVALSTR: return mono_string_to_byvalstr; case MONO_MARSHAL_CONV_STR_BYVALWSTR: return mono_string_to_byvalwstr; default: g_assert_not_reached (); } return NULL; } static void emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec) { int pos; switch (conv) { case MONO_MARSHAL_CONV_BOOL_I4: mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_U1); mono_mb_emit_byte (mb, CEE_STIND_I4); break; case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL: mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_U1); mono_mb_emit_byte (mb, CEE_NEG); mono_mb_emit_byte (mb, CEE_STIND_I2); break; case MONO_MARSHAL_CONV_STR_LPWSTR: case MONO_MARSHAL_CONV_STR_LPSTR: case MONO_MARSHAL_CONV_STR_LPTSTR: case MONO_MARSHAL_CONV_STR_BSTR: case MONO_MARSHAL_CONV_STR_ANSIBSTR: case MONO_MARSHAL_CONV_STR_TBSTR: { int pos; /* free space if free == true */ mono_mb_emit_ldloc (mb, 2); pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S); mono_mb_emit_ldloc (mb, 1); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icall (mb, g_free); mono_mb_patch_short_branch (mb, pos); mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_byte (mb, CEE_STIND_I); break; } case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY: case MONO_MARSHAL_CONV_ARRAY_LPARRAY: case MONO_MARSHAL_CONV_DEL_FTN: mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_byte (mb, CEE_STIND_I); break; case MONO_MARSHAL_CONV_STR_BYVALSTR: case MONO_MARSHAL_CONV_STR_BYVALWSTR: { g_assert (mspec); mono_mb_emit_ldloc (mb, 1); /* dst */ mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */ mono_mb_emit_icon (mb, mspec->data.array_data.num_elem); mono_mb_emit_icall (mb, conv_to_icall (conv)); break; } case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: { MonoClass *eklass = NULL; int esize; if (type->type == MONO_TYPE_SZARRAY) { eklass = type->data.klass; } else { g_assert_not_reached (); } if (eklass->valuetype) esize = mono_class_native_size (eklass, NULL); else esize = sizeof (gpointer); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_REF); pos = mono_mb_emit_branch (mb, CEE_BRFALSE); if (eklass->blittable) { mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector)); mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_CPBLK); } else { int array_var, src_var, dst_var, index_var; guint32 label2, label3; array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* set array_var */ mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_stloc (mb, array_var); /* save the old src pointer */ mono_mb_emit_ldloc (mb, 0); mono_mb_emit_stloc (mb, src_var); /* save the old dst pointer */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_stloc (mb, dst_var); /* Emit marshalling loop */ index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_stloc (mb, index_var); /* Loop header */ label2 = mono_mb_get_label (mb); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_ldloc (mb, array_var); mono_mb_emit_byte (mb, CEE_LDLEN); label3 = mono_mb_emit_branch (mb, CEE_BGE); /* Set src */ mono_mb_emit_ldloc (mb, array_var); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_op (mb, CEE_LDELEMA, eklass); mono_mb_emit_stloc (mb, 0); /* dst is already set */ /* Do the conversion */ emit_struct_conv (mb, eklass, FALSE); /* Loop footer */ mono_mb_emit_add_to_local (mb, index_var, 1); mono_mb_emit_branch_label (mb, CEE_BR, label2); mono_mb_patch_branch (mb, label3); /* restore the old src pointer */ mono_mb_emit_ldloc (mb, src_var); mono_mb_emit_stloc (mb, 0); /* restore the old dst pointer */ mono_mb_emit_ldloc (mb, dst_var); mono_mb_emit_stloc (mb, 1); } mono_mb_patch_branch (mb, pos); break; } case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: { mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_REF); pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S); mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_icon (mb, mspec->data.array_data.num_elem); mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray); mono_mb_patch_short_branch (mb, pos); break; } case MONO_MARSHAL_CONV_OBJECT_STRUCT: { int src_var, dst_var; src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_I); pos = mono_mb_emit_branch (mb, CEE_BRFALSE); /* save the old src pointer */ mono_mb_emit_ldloc (mb, 0); mono_mb_emit_stloc (mb, src_var); /* save the old dst pointer */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_stloc (mb, dst_var); /* src = pointer to object data */ mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icon (mb, sizeof (MonoObject)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_stloc (mb, 0); emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE); /* restore the old src pointer */ mono_mb_emit_ldloc (mb, src_var); mono_mb_emit_stloc (mb, 0); /* restore the old dst pointer */ mono_mb_emit_ldloc (mb, dst_var); mono_mb_emit_stloc (mb, 1); mono_mb_patch_branch (mb, pos); break; } #ifndef DISABLE_COM case MONO_MARSHAL_CONV_OBJECT_INTERFACE: case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec); break; #endif /* DISABLE_COM */ case MONO_MARSHAL_CONV_SAFEHANDLE: { int dar_release_slot, pos; dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg); /* * The following is ifdefed-out, because I have no way of doing the * DangerousRelease when destroying the structure */ #if 0 /* set release = false */ mono_mb_emit_icon (mb, 0); mono_mb_emit_stloc (mb, dar_release_slot); if (!sh_dangerous_add_ref) init_safe_handle (); /* safehandle.DangerousAddRef (ref release) */ mono_mb_emit_ldloc (mb, 0); /* the source */ mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldloc_addr (mb, dar_release_slot); mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL); #endif mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_I); pos = mono_mb_emit_branch (mb, CEE_BRTRUE); mono_mb_emit_exception (mb, "ArgumentNullException", NULL); mono_mb_patch_branch (mb, pos); /* Pull the handle field from SafeHandle */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_byte (mb, CEE_STIND_I); break; } case MONO_MARSHAL_CONV_HANDLEREF: { mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_byte (mb, CEE_STIND_I); break; } default: { char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv); MonoException *exc = mono_get_exception_not_implemented (msg); g_warning ("%s", msg); g_free (msg); mono_raise_exception (exc); } } } static void emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding) { MonoMarshalType *info; int i; if (klass->parent) emit_struct_conv(mb, klass->parent, to_object); info = mono_marshal_load_type_info (klass); if (info->native_size == 0) return; if (klass->blittable) { int msize = mono_class_value_size (klass, NULL); g_assert (msize == info->native_size); mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_icon (mb, msize); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_CPBLK); mono_mb_emit_add_to_local (mb, 0, msize); mono_mb_emit_add_to_local (mb, 1, msize); return; } if (klass != mono_defaults.safehandle_class) { if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) { char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.", mono_type_full_name (&klass->byval_arg)); mono_mb_emit_exception_marshal_directive (mb, msg); return; } } for (i = 0; i < info->num_fields; i++) { MonoMarshalNative ntype; MonoMarshalConv conv; MonoType *ftype = info->fields [i].field->type; int msize = 0; int usize = 0; gboolean last_field = i < (info->num_fields -1) ? 0 : 1; if (ftype->attrs & FIELD_ATTRIBUTE_STATIC) continue; ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv); if (last_field) { msize = klass->instance_size - info->fields [i].field->offset; usize = info->native_size - info->fields [i].offset; } else { msize = info->fields [i + 1].field->offset - info->fields [i].field->offset; usize = info->fields [i + 1].offset - info->fields [i].offset; } if (klass != mono_defaults.safehandle_class){ /* * FIXME: Should really check for usize==0 and msize>0, but we apply * the layout to the managed structure as well. */ if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) { if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) || ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type)))) g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a " "reference field at the same offset as another field.", mono_type_full_name (&klass->byval_arg)); } } switch (conv) { case MONO_MARSHAL_CONV_NONE: { int t; if (ftype->byref || ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) { mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_byte (mb, CEE_STIND_I); break; } handle_enum: t = ftype->type; switch (t) { case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_BOOLEAN: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_CHAR: case MONO_TYPE_I8: case MONO_TYPE_U8: case MONO_TYPE_PTR: case MONO_TYPE_R4: case MONO_TYPE_R8: mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) { if (to_object) { mono_mb_emit_byte (mb, CEE_LDIND_U1); mono_mb_emit_byte (mb, CEE_STIND_I2); } else { mono_mb_emit_byte (mb, CEE_LDIND_U2); mono_mb_emit_byte (mb, CEE_STIND_I1); } } else { mono_mb_emit_byte (mb, mono_type_to_ldind (ftype)); mono_mb_emit_byte (mb, mono_type_to_stind (ftype)); } break; case MONO_TYPE_VALUETYPE: { int src_var, dst_var; if (ftype->data.klass->enumtype) { ftype = mono_class_enum_basetype (ftype->data.klass); goto handle_enum; } src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* save the old src pointer */ mono_mb_emit_ldloc (mb, 0); mono_mb_emit_stloc (mb, src_var); /* save the old dst pointer */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_stloc (mb, dst_var); emit_struct_conv (mb, ftype->data.klass, to_object); /* restore the old src pointer */ mono_mb_emit_ldloc (mb, src_var); mono_mb_emit_stloc (mb, 0); /* restore the old dst pointer */ mono_mb_emit_ldloc (mb, dst_var); mono_mb_emit_stloc (mb, 1); break; } case MONO_TYPE_OBJECT: { #ifndef DISABLE_COM if (to_object) { static MonoMethod *variant_clear = NULL; static MonoMethod *get_object_for_native_variant = NULL; if (!variant_clear) variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0); if (!get_object_for_native_variant) get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1); mono_mb_emit_ldloc (mb, 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL); mono_mb_emit_byte (mb, CEE_STIND_REF); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_managed_call (mb, variant_clear, NULL); } else { static MonoMethod *get_native_variant_for_object = NULL; if (!get_native_variant_for_object) get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte(mb, CEE_LDIND_REF); mono_mb_emit_ldloc (mb, 1); mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL); } #else char *msg = g_strdup_printf ("COM support was disabled at compilation time."); mono_mb_emit_exception_marshal_directive (mb, msg); #endif break; } default: g_warning ("marshaling type %02x not implemented", ftype->type); g_assert_not_reached (); } break; } default: { int src_var, dst_var; src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* save the old src pointer */ mono_mb_emit_ldloc (mb, 0); mono_mb_emit_stloc (mb, src_var); /* save the old dst pointer */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_stloc (mb, dst_var); if (to_object) emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec); else emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec); /* restore the old src pointer */ mono_mb_emit_ldloc (mb, src_var); mono_mb_emit_stloc (mb, 0); /* restore the old dst pointer */ mono_mb_emit_ldloc (mb, dst_var); mono_mb_emit_stloc (mb, 1); } } if (to_object) { mono_mb_emit_add_to_local (mb, 0, usize); mono_mb_emit_add_to_local (mb, 1, msize); } else { mono_mb_emit_add_to_local (mb, 0, msize); mono_mb_emit_add_to_local (mb, 1, usize); } } } static void emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object) { emit_struct_conv_full (mb, klass, to_object, -1); } static void emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var) { /* Call DestroyStructure */ /* FIXME: Only do this if needed */ mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass); mono_mb_emit_ldloc (mb, struct_var); mono_mb_emit_icall (mb, mono_struct_delete_old); } static void emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func) { int pos_noabort; mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ()); mono_mb_emit_byte (mb, CEE_LDIND_U4); pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN); mono_mb_emit_icall (mb, checkpoint_func); mono_mb_patch_branch (mb, pos_noabort); } static void emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb) { if (strstr (mb->name, "mono_thread_interruption_checkpoint")) return; emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint); } static void emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb) { emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint); } void mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb) { emit_thread_interrupt_checkpoint (mb); } #endif /* DISABLE_JIT */ static MonoAsyncResult * mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params) { MonoMethodMessage *msg; MonoDelegate *async_callback; MonoMulticastDelegate *mcast_delegate; MonoObject *state; MonoMethod *im; MonoClass *klass; MonoMethod *method = NULL, *method2 = NULL; g_assert (delegate); mcast_delegate = (MonoMulticastDelegate *) delegate; if (mcast_delegate->prev != NULL) mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target")); #ifndef DISABLE_REMOTING if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) { MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target; if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) { /* If the target is a proxy, make a direct call. Is proxy's work // to make the call asynchronous. */ MonoAsyncResult *ares; MonoObject *exc; MonoArray *out_args; method = delegate->method; msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state); ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL); MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate); MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback); MONO_OBJECT_SETREF (msg, async_result, ares); msg->call_type = CallType_BeginInvoke; exc = NULL; mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args); if (exc) mono_raise_exception ((MonoException *) exc); return ares; } } #endif klass = delegate->object.vtable->klass; method = mono_get_delegate_invoke (klass); method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1); if (method2) method = method2; g_assert (method != NULL); im = mono_get_delegate_invoke (method->klass); msg = mono_method_call_message_new (method, params, im, &async_callback, &state); return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state); } #ifndef DISABLE_JIT static int mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this) { int i, params_var, tmp_var; /* allocate local (pointer) *params[] */ params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* allocate local (pointer) tmp */ tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* alloate space on stack to store an array of pointers to the arguments */ mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1)); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_LOCALLOC); mono_mb_emit_stloc (mb, params_var); /* tmp = params */ mono_mb_emit_ldloc (mb, params_var); mono_mb_emit_stloc (mb, tmp_var); if (save_this && sig->hasthis) { mono_mb_emit_ldloc (mb, tmp_var); mono_mb_emit_ldarg_addr (mb, 0); mono_mb_emit_byte (mb, CEE_STIND_I); /* tmp = tmp + sizeof (gpointer) */ if (sig->param_count) mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer)); } for (i = 0; i < sig->param_count; i++) { mono_mb_emit_ldloc (mb, tmp_var); mono_mb_emit_ldarg_addr (mb, i + sig->hasthis); mono_mb_emit_byte (mb, CEE_STIND_I); /* tmp = tmp + sizeof (gpointer) */ if (i < (sig->param_count - 1)) mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer)); } return params_var; } #endif /* DISABLE_JIT */ static char* mono_signature_to_name (MonoMethodSignature *sig, const char *prefix) { int i; char *result; GString *res = g_string_new (""); if (prefix) { g_string_append (res, prefix); g_string_append_c (res, '_'); } mono_type_get_desc (res, sig->ret, FALSE); if (sig->hasthis) g_string_append (res, "__this__"); for (i = 0; i < sig->param_count; ++i) { g_string_append_c (res, '_'); mono_type_get_desc (res, sig->params [i], FALSE); } result = res->str; g_string_free (res, FALSE); return result; } /** * mono_marshal_get_string_encoding: * * Return the string encoding which should be used for a given parameter. */ static MonoMarshalNative mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec) { /* First try the parameter marshal info */ if (spec) { if (spec->native == MONO_NATIVE_LPARRAY) { if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX)) return spec->data.array_data.elem_type; } else return spec->native; } if (!piinfo) return MONO_NATIVE_LPSTR; /* Then try the method level marshal info */ switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) { case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI: return MONO_NATIVE_LPSTR; case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE: return MONO_NATIVE_LPWSTR; case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO: #ifdef TARGET_WIN32 return MONO_NATIVE_LPWSTR; #else return MONO_NATIVE_LPSTR; #endif default: return MONO_NATIVE_LPSTR; } } static MonoMarshalConv mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec) { MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec); switch (encoding) { case MONO_NATIVE_LPWSTR: return MONO_MARSHAL_CONV_STR_LPWSTR; case MONO_NATIVE_LPSTR: case MONO_NATIVE_VBBYREFSTR: return MONO_MARSHAL_CONV_STR_LPSTR; case MONO_NATIVE_LPTSTR: return MONO_MARSHAL_CONV_STR_LPTSTR; case MONO_NATIVE_BSTR: return MONO_MARSHAL_CONV_STR_BSTR; default: return -1; } } static MonoMarshalConv mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec) { MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec); switch (encoding) { case MONO_NATIVE_LPWSTR: return MONO_MARSHAL_CONV_SB_LPWSTR; break; case MONO_NATIVE_LPSTR: return MONO_MARSHAL_CONV_SB_LPSTR; break; case MONO_NATIVE_LPTSTR: return MONO_MARSHAL_CONV_SB_LPTSTR; break; default: return -1; } } static MonoMarshalConv mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free) { MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec); *need_free = TRUE; switch (encoding) { case MONO_NATIVE_LPWSTR: *need_free = FALSE; return MONO_MARSHAL_CONV_LPWSTR_STR; case MONO_NATIVE_LPSTR: case MONO_NATIVE_VBBYREFSTR: return MONO_MARSHAL_CONV_LPSTR_STR; case MONO_NATIVE_LPTSTR: return MONO_MARSHAL_CONV_LPTSTR_STR; case MONO_NATIVE_BSTR: return MONO_MARSHAL_CONV_BSTR_STR; default: return -1; } } static MonoMarshalConv mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free) { MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec); *need_free = TRUE; switch (encoding) { case MONO_NATIVE_LPWSTR: /* * mono_string_builder_to_utf16 does not allocate a * new buffer, so no need to free it. */ *need_free = FALSE; return MONO_MARSHAL_CONV_LPWSTR_SB; case MONO_NATIVE_LPSTR: return MONO_MARSHAL_CONV_LPSTR_SB; break; case MONO_NATIVE_LPTSTR: return MONO_MARSHAL_CONV_LPTSTR_SB; break; default: return -1; } } /* * Return whenever a field of a native structure or an array member needs to * be freed. */ static gboolean mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec) { MonoMarshalNative encoding; MonoMarshalConv conv; switch (t->type) { case MONO_TYPE_VALUETYPE: /* FIXME: Optimize this */ return TRUE; case MONO_TYPE_OBJECT: case MONO_TYPE_CLASS: if (t->data.klass == mono_defaults.stringbuilder_class) { gboolean need_free; conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free); return need_free; } return FALSE; case MONO_TYPE_STRING: encoding = mono_marshal_get_string_encoding (piinfo, spec); return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE; default: return FALSE; } } /* * Return the hash table pointed to by VAR, lazily creating it if neccesary. */ static GHashTable* get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func) { if (!(*var)) { mono_marshal_lock (); if (!(*var)) { GHashTable *cache = g_hash_table_new (hash_func, equal_func); mono_memory_barrier (); *var = cache; } mono_marshal_unlock (); } return *var; } static GHashTable* get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func) { if (!(*var)) { mono_marshal_lock (); if (!(*var)) { GHashTable *cache = g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func); mono_memory_barrier (); *var = cache; } mono_marshal_unlock (); } return *var; } GHashTable* mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func) { return get_cache (var, hash_func, equal_func); } MonoMethod* mono_marshal_find_in_cache (GHashTable *cache, gpointer key) { MonoMethod *res; mono_marshal_lock (); res = g_hash_table_lookup (cache, key); mono_marshal_unlock (); return res; } /* Create the method from the builder and place it in the cache */ MonoMethod* mono_mb_create_and_cache (GHashTable *cache, gpointer key, MonoMethodBuilder *mb, MonoMethodSignature *sig, int max_stack) { MonoMethod *res; mono_marshal_lock (); res = g_hash_table_lookup (cache, key); mono_marshal_unlock (); if (!res) { MonoMethod *newm; newm = mono_mb_create_method (mb, sig, max_stack); mono_marshal_lock (); res = g_hash_table_lookup (cache, key); if (!res) { res = newm; g_hash_table_insert (cache, key, res); mono_marshal_set_wrapper_info (res, key); mono_marshal_unlock (); } else { mono_marshal_unlock (); mono_free_method (newm); } } return res; } static inline MonoMethod* mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type) { MonoMethod *res = NULL; MonoRemotingMethods *wrps; mono_marshal_lock (); if (method->klass->image->remoting_invoke_cache) wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method); else wrps = NULL; if (wrps) { switch (wrapper_type) { case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break; case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break; case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break; case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break; } } /* it is important to do the unlock after the load from wrps, since in * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able * to take the loader lock and some other thread may set the fields. */ mono_marshal_unlock (); return res; } /* Create the method from the builder and place it in the cache */ static inline MonoMethod* mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb, MonoMethodSignature *sig, int max_stack) { MonoMethod **res = NULL; MonoRemotingMethods *wrps; GHashTable *cache = get_cache_full (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free); mono_marshal_lock (); wrps = g_hash_table_lookup (cache, key); if (!wrps) { wrps = g_new0 (MonoRemotingMethods, 1); g_hash_table_insert (cache, key, wrps); } switch (mb->method->wrapper_type) { case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break; case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break; case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break; case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break; default: g_assert_not_reached (); break; } mono_marshal_unlock (); if (*res == NULL) { MonoMethod *newm; newm = mono_mb_create_method (mb, sig, max_stack); mono_marshal_lock (); if (!*res) { *res = newm; mono_marshal_set_wrapper_info (*res, key); mono_marshal_unlock (); } else { mono_marshal_unlock (); mono_free_method (newm); } } return *res; } MonoMethod * mono_marshal_method_from_wrapper (MonoMethod *wrapper) { gpointer res; int wrapper_type = wrapper->wrapper_type; WrapperInfo *info; if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) return wrapper; switch (wrapper_type) { case MONO_WRAPPER_REMOTING_INVOKE: case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: case MONO_WRAPPER_XDOMAIN_INVOKE: case MONO_WRAPPER_SYNCHRONIZED: case MONO_WRAPPER_UNBOX: res = mono_marshal_get_wrapper_info (wrapper); if (res == NULL) return wrapper; if (wrapper->is_inflated) /* * A method cannot be inflated and a wrapper at the same time, so the wrapper info * contains an uninflated method. */ return mono_class_inflate_generic_method (res, mono_method_get_context (wrapper)); else return res; case MONO_WRAPPER_MANAGED_TO_NATIVE: info = mono_marshal_get_wrapper_info (wrapper); if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT)) return info->d.managed_to_native.method; else return NULL; case MONO_WRAPPER_RUNTIME_INVOKE: info = mono_marshal_get_wrapper_info (wrapper); if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL)) return info->d.runtime_invoke.method; else return NULL; default: return NULL; } } /* * mono_marshal_get_wrapper_info: * * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data * returned depends on the wrapper type. It is usually a method, a class, or a * WrapperInfo structure. */ gpointer mono_marshal_get_wrapper_info (MonoMethod *wrapper) { g_assert (wrapper->wrapper_type); return mono_method_get_wrapper_data (wrapper, 1); } /* * mono_marshal_set_wrapper_info: * * Store an arbitrary pointer inside the wrapper which is retrievable by * mono_marshal_get_wrapper_info. The format of the data depends on the type of the * wrapper (method->wrapper_type). */ void mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data) { void **datav; /* assert */ if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) return; datav = ((MonoMethodWrapper *)method)->method_data; datav [1] = data; } static WrapperInfo* mono_wrapper_info_create (MonoMethod *wrapper, WrapperSubtype subtype) { WrapperInfo *info; info = mono_image_alloc0 (wrapper->klass->image, sizeof (WrapperInfo)); info->subtype = subtype; return info; } /* * get_wrapper_target_class: * * Return the class where a wrapper method should be placed. */ static MonoClass* get_wrapper_target_class (MonoImage *image) { MonoClass *klass; /* * Notes: * - can't put all wrappers into an mscorlib class, because they reference * metadata (signature) so they should be put into the same image as the * method they wrap, so they are unloaded together. * - putting them into a class with a type initalizer could cause the * initializer to be executed which can be a problem if the wrappers are * shared. * - putting them into an inflated class can cause problems if the the * class is deleted because it references an image which is unloaded. * To avoid these problems, we put the wrappers into the class of * the image. */ if (image->dynamic) klass = ((MonoDynamicImage*)image)->wrappers_type; else klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1)); g_assert (klass); return klass; } /* * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort should be * an instance of the wrapper for Sort. This is required for full-aot to work. */ /* * check_generic_wrapper_cache: * * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found. * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its * generic method definition. */ static MonoMethod* check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key) { MonoMethod *res; MonoMethod *inst, *def; MonoGenericContext *ctx; MonoMethod *def_method; g_assert (orig_method->is_inflated); def_method = ((MonoMethodInflated*)orig_method)->declaring; ctx = mono_method_get_context (orig_method); /* * Look for the instance */ res = mono_marshal_find_in_cache (cache, key); if (res) return res; /* * Look for the definition */ def = mono_marshal_find_in_cache (cache, def_key); if (def) { inst = mono_class_inflate_generic_method (def, ctx); /* Cache it */ mono_memory_barrier (); mono_marshal_lock (); res = g_hash_table_lookup (cache, key); if (!res) { g_hash_table_insert (cache, key, inst); res = inst; } mono_marshal_unlock (); return res; } return NULL; } static MonoMethod* cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key) { MonoMethod *inst, *res; /* * We use the same cache for the generic definition and the instances. */ inst = mono_class_inflate_generic_method (def, ctx); mono_memory_barrier (); mono_marshal_lock (); res = g_hash_table_lookup (cache, key); if (!res) { g_hash_table_insert (cache, key, inst); res = inst; } mono_marshal_unlock (); return res; } static MonoMethod* check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx) { MonoMethod *res; MonoMethod *inst, *def; /* * Look for the instance */ res = mono_marshal_find_in_cache (cache, orig_method->klass); if (res) return res; /* * Look for the definition */ def = mono_marshal_find_in_cache (cache, def_method->klass); if (def) { inst = mono_class_inflate_generic_method (def, ctx); /* Cache it */ mono_memory_barrier (); mono_marshal_lock (); res = g_hash_table_lookup (cache, orig_method->klass); if (!res) { g_hash_table_insert (cache, orig_method->klass, inst); res = inst; } mono_marshal_unlock (); return res; } return NULL; } static MonoMethod* cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx) { MonoMethod *inst, *res; /* * We use the same cache for the generic definition and the instances. */ inst = mono_class_inflate_generic_method (def, ctx); mono_memory_barrier (); mono_marshal_lock (); res = g_hash_table_lookup (cache, orig_method->klass); if (!res) { g_hash_table_insert (cache, orig_method->klass, inst); res = inst; } mono_marshal_unlock (); return res; } MonoMethod * mono_marshal_get_delegate_begin_invoke (MonoMethod *method) { MonoMethodSignature *sig; MonoMethodBuilder *mb; MonoMethod *res; GHashTable *cache; int params_var; char *name; MonoGenericContext *ctx = NULL; MonoMethod *orig_method = NULL; g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class && !strcmp (method->name, "BeginInvoke")); /* * For generic delegates, create a generic wrapper, and returns an instance to help AOT. */ if (method->is_inflated) { orig_method = method; ctx = &((MonoMethodInflated*)method)->context; method = ((MonoMethodInflated*)method)->declaring; } sig = mono_signature_no_pinvoke (method); /* * Check cache */ if (ctx) { cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL); res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx); if (res) return res; } else { cache = get_cache (&method->klass->image->delegate_begin_invoke_cache, (GHashFunc)mono_signature_hash, (GCompareFunc)mono_metadata_signature_equal); if ((res = mono_marshal_find_in_cache (cache, sig))) return res; } g_assert (sig->hasthis); name = mono_signature_to_name (sig, "begin_invoke"); if (ctx) mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE); else mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE); g_free (name); #ifndef DISABLE_JIT params_var = mono_mb_emit_save_args (mb, sig, FALSE); mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldloc (mb, params_var); mono_mb_emit_icall (mb, mono_delegate_begin_invoke); mono_mb_emit_byte (mb, CEE_RET); #endif if (ctx) { MonoMethod *def; def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16); res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx); } else { res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16); } mono_mb_free (mb); return res; } static MonoObject * mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params) { MonoDomain *domain = mono_domain_get (); MonoAsyncResult *ares; MonoMethod *method = NULL; MonoMethodSignature *sig; MonoMethodMessage *msg; MonoObject *res, *exc; MonoArray *out_args; MonoClass *klass; g_assert (delegate); if (!delegate->method_info) { g_assert (delegate->method); MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL)); } if (!delegate->method_info || !delegate->method_info->method) g_assert_not_reached (); klass = delegate->object.vtable->klass; method = mono_class_get_method_from_name (klass, "EndInvoke", -1); g_assert (method != NULL); sig = mono_signature_no_pinvoke (method); msg = mono_method_call_message_new (method, params, NULL, NULL, NULL); ares = mono_array_get (msg->args, gpointer, sig->param_count - 1); if (ares == NULL) { mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type.")); return NULL; } if (ares->async_delegate != (MonoObject*)delegate) { mono_raise_exception (mono_get_exception_invalid_operation ( "The IAsyncResult object provided does not match this delegate.")); return NULL; } #ifndef DISABLE_REMOTING if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) { MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target; msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class); mono_message_init (domain, msg, delegate->method_info, NULL); msg->call_type = CallType_EndInvoke; MONO_OBJECT_SETREF (msg, async_result, ares); res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args); } else #endif { res = mono_thread_pool_finish (ares, &out_args, &exc); } if (exc) { if (((MonoException*)exc)->stack_trace) { char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace); char *tmp; tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace); g_free (strace); MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp)); g_free (tmp); } mono_raise_exception ((MonoException*)exc); } mono_method_return_message_restore (method, params, out_args); return res; } #ifndef DISABLE_JIT static void mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type) { MonoType *t = mono_type_get_underlying_type (return_type); if (return_type->byref) return_type = &mono_defaults.int_class->byval_arg; switch (t->type) { case MONO_TYPE_VOID: g_assert_not_reached (); break; case MONO_TYPE_PTR: case MONO_TYPE_STRING: case MONO_TYPE_CLASS: case MONO_TYPE_OBJECT: case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: /* nothing to do */ break; case MONO_TYPE_U1: case MONO_TYPE_BOOLEAN: case MONO_TYPE_I1: case MONO_TYPE_U2: case MONO_TYPE_CHAR: case MONO_TYPE_I2: case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_U8: case MONO_TYPE_I8: case MONO_TYPE_R4: case MONO_TYPE_R8: mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type)); mono_mb_emit_byte (mb, mono_type_to_ldind (return_type)); break; case MONO_TYPE_GENERICINST: if (!mono_type_generic_inst_is_valuetype (t)) break; /* fall through */ case MONO_TYPE_VALUETYPE: { MonoClass *klass = mono_class_from_mono_type (return_type); mono_mb_emit_op (mb, CEE_UNBOX, klass); mono_mb_emit_op (mb, CEE_LDOBJ, klass); break; } case MONO_TYPE_VAR: case MONO_TYPE_MVAR: { MonoClass *klass = mono_class_from_mono_type (return_type); mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass); break; } default: g_warning ("type 0x%x not handled", return_type->type); g_assert_not_reached (); } mono_mb_emit_byte (mb, CEE_RET); } #endif /* DISABLE_JIT */ MonoMethod * mono_marshal_get_delegate_end_invoke (MonoMethod *method) { MonoMethodSignature *sig; MonoMethodBuilder *mb; MonoMethod *res; GHashTable *cache; int params_var; char *name; MonoGenericContext *ctx = NULL; MonoMethod *orig_method = NULL; g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class && !strcmp (method->name, "EndInvoke")); /* * For generic delegates, create a generic wrapper, and returns an instance to help AOT. */ if (method->is_inflated) { orig_method = method; ctx = &((MonoMethodInflated*)method)->context; method = ((MonoMethodInflated*)method)->declaring; } sig = mono_signature_no_pinvoke (method); /* * Check cache */ if (ctx) { cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL); res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx); if (res) return res; } else { cache = get_cache (&method->klass->image->delegate_end_invoke_cache, (GHashFunc)mono_signature_hash, (GCompareFunc)mono_metadata_signature_equal); if ((res = mono_marshal_find_in_cache (cache, sig))) return res; } g_assert (sig->hasthis); name = mono_signature_to_name (sig, "end_invoke"); if (ctx) mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE); else mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE); g_free (name); #ifndef DISABLE_JIT params_var = mono_mb_emit_save_args (mb, sig, FALSE); mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldloc (mb, params_var); mono_mb_emit_icall (mb, mono_delegate_end_invoke); if (sig->ret->type == MONO_TYPE_VOID) { mono_mb_emit_byte (mb, CEE_POP); mono_mb_emit_byte (mb, CEE_RET); } else mono_mb_emit_restore_result (mb, sig->ret); #endif if (ctx) { MonoMethod *def; def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16); res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx); } else { res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16); } mono_mb_free (mb); return res; } #ifndef DISABLE_REMOTING static MonoObject * mono_remoting_wrapper (MonoMethod *method, gpointer *params) { MonoMethodMessage *msg; MonoTransparentProxy *this; MonoObject *res, *exc; MonoArray *out_args; this = *((MonoTransparentProxy **)params [0]); g_assert (this); g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class); /* skip the this pointer */ params++; if (mono_class_is_contextbound (this->remote_class->proxy_class) && this->rp->context == (MonoObject *) mono_context_get ()) { int i; MonoMethodSignature *sig = mono_method_signature (method); int count = sig->param_count; gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer)); for (i=0; iparams [i]); if (class->valuetype) { if (sig->params [i]->byref) { mparams[i] = *((gpointer *)params [i]); } else { /* runtime_invoke expects a boxed instance */ if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) mparams[i] = mono_nullable_box (params [i], class); else mparams[i] = params [i]; } } else { mparams[i] = *((gpointer**)params [i]); } } return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL); } msg = mono_method_call_message_new (method, params, NULL, NULL, NULL); res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args); if (exc) mono_raise_exception ((MonoException *)exc); mono_method_return_message_restore (method, params, out_args); return res; } MonoMethod * mono_marshal_get_remoting_invoke (MonoMethod *method) { MonoMethodSignature *sig; MonoMethodBuilder *mb; MonoMethod *res; int params_var; g_assert (method); if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE) return method; /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */ #ifndef DISABLE_COM if (mono_class_is_com_object (method->klass) || method->klass == mono_class_get_com_object_class ()) { MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass); g_assert (vtable); /*FIXME do proper error handling*/ if (!mono_vtable_is_remote (vtable)) { return mono_cominterop_get_invoke (method); } } #endif sig = mono_signature_no_pinvoke (method); /* we cant remote methods without this pointer */ if (!sig->hasthis) return method; if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE))) return res; mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE); #ifndef DISABLE_JIT mb->method->save_lmf = 1; params_var = mono_mb_emit_save_args (mb, sig, TRUE); mono_mb_emit_ptr (mb, method); mono_mb_emit_ldloc (mb, params_var); mono_mb_emit_icall (mb, mono_remoting_wrapper); emit_thread_interrupt_checkpoint (mb); if (sig->ret->type == MONO_TYPE_VOID) { mono_mb_emit_byte (mb, CEE_POP); mono_mb_emit_byte (mb, CEE_RET); } else { mono_mb_emit_restore_result (mb, sig->ret); } #endif res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16); mono_mb_free (mb); return res; } #endif /* DISABLE_REMOTING */ /* mono_get_xdomain_marshal_type() * Returns the kind of marshalling that a type needs for cross domain calls. */ static MonoXDomainMarshalType mono_get_xdomain_marshal_type (MonoType *t) { switch (t->type) { case MONO_TYPE_VOID: g_assert_not_reached (); break; case MONO_TYPE_U1: case MONO_TYPE_I1: case MONO_TYPE_BOOLEAN: case MONO_TYPE_U2: case MONO_TYPE_I2: case MONO_TYPE_CHAR: case MONO_TYPE_U4: case MONO_TYPE_I4: case MONO_TYPE_I8: case MONO_TYPE_U8: case MONO_TYPE_R4: case MONO_TYPE_R8: return MONO_MARSHAL_NONE; case MONO_TYPE_STRING: return MONO_MARSHAL_COPY; case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: { MonoClass *elem_class = mono_class_from_mono_type (t)->element_class; if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE) return MONO_MARSHAL_COPY; break; } } return MONO_MARSHAL_SERIALIZE; } /* mono_marshal_xdomain_copy_value * Makes a copy of "val" suitable for the current domain. */ MonoObject * mono_marshal_xdomain_copy_value (MonoObject *val) { MonoDomain *domain; if (val == NULL) return NULL; domain = mono_domain_get (); switch (mono_object_class (val)->byval_arg.type) { case MONO_TYPE_VOID: g_assert_not_reached (); break; case MONO_TYPE_U1: case MONO_TYPE_I1: case MONO_TYPE_BOOLEAN: case MONO_TYPE_U2: case MONO_TYPE_I2: case MONO_TYPE_CHAR: case MONO_TYPE_U4: case MONO_TYPE_I4: case MONO_TYPE_I8: case MONO_TYPE_U8: case MONO_TYPE_R4: case MONO_TYPE_R8: { return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject)); } case MONO_TYPE_STRING: { MonoString *str = (MonoString *) val; return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str)); } case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: { MonoArray *acopy; MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg)); if (mt == MONO_MARSHAL_SERIALIZE) return NULL; acopy = mono_array_clone_in_domain (domain, (MonoArray *) val); if (mt == MONO_MARSHAL_COPY) { int i, len = mono_array_length (acopy); for (i = 0; i < len; i++) { MonoObject *item = mono_array_get (acopy, gpointer, i); mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item)); } } return (MonoObject *) acopy; } } if (mono_object_class (val) == mono_defaults.stringbuilder_class) { MonoStringBuilder *oldsb = (MonoStringBuilder *) val; MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class); MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str))); newsb->length = oldsb->length; newsb->max_capacity = (gint32)0x7fffffff; return (MonoObject *) newsb; } return NULL; } /* mono_marshal_xdomain_copy_out_value() * Copies the contents of the src instance into the dst instance. src and dst * must have the same type, and if they are arrays, the same size. */ static void mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst) { if (src == NULL || dst == NULL) return; g_assert (mono_object_class (src) == mono_object_class (dst)); switch (mono_object_class (src)->byval_arg.type) { case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: { int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg)); if (mt == MONO_MARSHAL_SERIALIZE) return; if (mt == MONO_MARSHAL_COPY) { int i, len = mono_array_length ((MonoArray *)dst); for (i = 0; i < len; i++) { MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i); mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item)); } } else { mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst); } return; } } if (mono_object_class (src) == mono_defaults.stringbuilder_class) { MonoStringBuilder *src_sb = (MonoStringBuilder *) src; MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst; MONO_OBJECT_SETREF (dst_sb, str, mono_string_new_utf16 (mono_object_domain (dst), mono_string_chars (src_sb->str), mono_string_length (src_sb->str))); dst_sb->cached_str = NULL; dst_sb->length = src_sb->length; } } #if !(defined (DISABLE_JIT) || defined (DISABLE_REMOTING)) static void mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass) { mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value); mono_mb_emit_op (mb, CEE_CASTCLASS, pclass); } static void mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass) { mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value); } #endif #ifndef DISABLE_REMOTING /* mono_marshal_supports_fast_xdomain() * Returns TRUE if the method can use the fast xdomain wrapper. */ static gboolean mono_marshal_supports_fast_xdomain (MonoMethod *method) { return !mono_class_is_contextbound (method->klass) && !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0)); } #endif static gint32 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push) { MonoDomain *current_domain = mono_domain_get (); MonoDomain *domain = mono_domain_get_by_id (id); if (!domain || !mono_domain_set (domain, FALSE)) mono_raise_exception (mono_get_exception_appdomain_unloaded ()); if (push) mono_thread_push_appdomain_ref (domain); else mono_thread_pop_appdomain_ref (); return current_domain->domain_id; } #if !(defined (DISABLE_JIT) || defined (DISABLE_REMOTING)) static void mono_marshal_emit_switch_domain (MonoMethodBuilder *mb) { mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id); } /* mono_marshal_emit_load_domain_method () * Loads into the stack a pointer to the code of the provided method for * the current domain. */ static void mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method) { /* We need a pointer to the method for the running domain (not the domain * that compiles the method). */ mono_mb_emit_ptr (mb, method); mono_mb_emit_icall (mb, mono_compile_method); } #endif /* mono_marshal_check_domain_image () * Returns TRUE if the image is loaded in the specified * application domain. */ static gboolean mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image) { MonoAssembly* ass; GSList *tmp; MonoDomain *domain = mono_domain_get_by_id (domain_id); if (!domain) return FALSE; mono_domain_assemblies_lock (domain); for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) { ass = tmp->data; if (ass->image == image) break; } mono_domain_assemblies_unlock (domain); return tmp != NULL; } #ifndef DISABLE_REMOTING /* mono_marshal_get_xappdomain_dispatch () * Generates a method that dispatches a method call from another domain into * the current domain. */ static MonoMethod * mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type) { MonoMethodSignature *sig, *csig; MonoMethodBuilder *mb; MonoMethod *res; int i, j, param_index, copy_locals_base; MonoClass *ret_class = NULL; int loc_array=0, loc_return=0, loc_serialized_exc=0; MonoExceptionClause *main_clause; int pos, pos_leave; gboolean copy_return; if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH))) return res; sig = mono_method_signature (method); copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE); j = 0; csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count); csig->params [j++] = &mono_defaults.object_class->byval_arg; csig->params [j++] = &byte_array_class->this_arg; csig->params [j++] = &byte_array_class->this_arg; for (i = 0; i < sig->param_count; i++) { if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) csig->params [j++] = sig->params [i]; } if (copy_return) csig->ret = sig->ret; else csig->ret = &mono_defaults.void_class->byval_arg; csig->pinvoke = 1; csig->hasthis = FALSE; mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH); mb->method->save_lmf = 1; #ifndef DISABLE_JIT /* Locals */ loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg); if (complex_count > 0) loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); if (sig->ret->type != MONO_TYPE_VOID) { loc_return = mono_mb_add_local (mb, sig->ret); ret_class = mono_class_from_mono_type (sig->ret); } /* try */ main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause)); main_clause->try_offset = mono_mb_get_label (mb); /* Clean the call context */ mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_managed_call (mb, method_set_call_context, NULL); mono_mb_emit_byte (mb, CEE_POP); /* Deserialize call data */ mono_mb_emit_ldarg (mb, 1); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_byte (mb, CEE_DUP); pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S); mono_marshal_emit_xdomain_copy_value (mb, byte_array_class); mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL); if (complex_count > 0) mono_mb_emit_stloc (mb, loc_array); else mono_mb_emit_byte (mb, CEE_POP); mono_mb_patch_short_branch (mb, pos); /* Get the target object */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL); /* Load the arguments */ copy_locals_base = mb->locals; param_index = 3; // Index of the first non-serialized parameter of this wrapper j = 0; for (i = 0; i < sig->param_count; i++) { MonoType *pt = sig->params [i]; MonoClass *pclass = mono_class_from_mono_type (pt); switch (marshal_types [i]) { case MONO_MARSHAL_SERIALIZE: { /* take the value from the serialized array */ mono_mb_emit_ldloc (mb, loc_array); mono_mb_emit_icon (mb, j++); if (pt->byref) { if (pclass->valuetype) { mono_mb_emit_byte (mb, CEE_LDELEM_REF); mono_mb_emit_op (mb, CEE_UNBOX, pclass); } else { mono_mb_emit_op (mb, CEE_LDELEMA, pclass); } } else { if (pclass->valuetype) { mono_mb_emit_byte (mb, CEE_LDELEM_REF); mono_mb_emit_op (mb, CEE_UNBOX, pclass); mono_mb_emit_op (mb, CEE_LDOBJ, pclass); } else { mono_mb_emit_byte (mb, CEE_LDELEM_REF); if (pclass != mono_defaults.object_class) { mono_mb_emit_op (mb, CEE_CASTCLASS, pclass); } } } break; } case MONO_MARSHAL_COPY_OUT: { /* Keep a local copy of the value since we need to copy it back after the call */ int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg)); mono_mb_emit_ldarg (mb, param_index++); mono_marshal_emit_xdomain_copy_value (mb, pclass); mono_mb_emit_byte (mb, CEE_DUP); mono_mb_emit_stloc (mb, copy_local); break; } case MONO_MARSHAL_COPY: { mono_mb_emit_ldarg (mb, param_index); if (pt->byref) { mono_mb_emit_byte (mb, CEE_DUP); mono_mb_emit_byte (mb, CEE_DUP); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_marshal_emit_xdomain_copy_value (mb, pclass); mono_mb_emit_byte (mb, CEE_STIND_REF); } else { mono_marshal_emit_xdomain_copy_value (mb, pclass); } param_index++; break; } case MONO_MARSHAL_NONE: mono_mb_emit_ldarg (mb, param_index++); break; } } /* Make the call to the real object */ emit_thread_force_interrupt_checkpoint (mb); mono_mb_emit_op (mb, CEE_CALLVIRT, method); if (sig->ret->type != MONO_TYPE_VOID) mono_mb_emit_stloc (mb, loc_return); /* copy back MONO_MARSHAL_COPY_OUT parameters */ j = 0; param_index = 3; for (i = 0; i < sig->param_count; i++) { if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue; if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) { mono_mb_emit_ldloc (mb, copy_locals_base + (j++)); mono_mb_emit_ldarg (mb, param_index); mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i])); } param_index++; } /* Serialize the return values */ if (complex_out_count > 0) { /* Reset parameters in the array that don't need to be serialized back */ j = 0; for (i = 0; i < sig->param_count; i++) { if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue; if (!sig->params [i]->byref) { mono_mb_emit_ldloc (mb, loc_array); mono_mb_emit_icon (mb, j); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_byte (mb, CEE_STELEM_REF); } j++; } /* Add the return value to the array */ if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) { mono_mb_emit_ldloc (mb, loc_array); mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */ mono_mb_emit_ldloc (mb, loc_return); g_assert (ret_class); /*FIXME properly fail here*/ if (ret_class->valuetype) { mono_mb_emit_op (mb, CEE_BOX, ret_class); } mono_mb_emit_byte (mb, CEE_STELEM_REF); } /* Serialize */ mono_mb_emit_ldarg (mb, 1); mono_mb_emit_ldloc (mb, loc_array); mono_mb_emit_managed_call (mb, method_rs_serialize, NULL); mono_mb_emit_byte (mb, CEE_STIND_REF); } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) { mono_mb_emit_ldarg (mb, 1); mono_mb_emit_ldloc (mb, loc_return); if (ret_class->valuetype) { mono_mb_emit_op (mb, CEE_BOX, ret_class); } mono_mb_emit_managed_call (mb, method_rs_serialize, NULL); mono_mb_emit_byte (mb, CEE_STIND_REF); } else { mono_mb_emit_ldarg (mb, 1); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_managed_call (mb, method_rs_serialize, NULL); mono_mb_emit_byte (mb, CEE_STIND_REF); } mono_mb_emit_ldarg (mb, 2); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_byte (mb, CEE_STIND_REF); pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE); /* Main exception catch */ main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE; main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset; main_clause->data.catch_class = mono_defaults.object_class; /* handler code */ main_clause->handler_offset = mono_mb_get_label (mb); mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL); mono_mb_emit_stloc (mb, loc_serialized_exc); mono_mb_emit_ldarg (mb, 2); mono_mb_emit_ldloc (mb, loc_serialized_exc); mono_mb_emit_byte (mb, CEE_STIND_REF); mono_mb_emit_branch (mb, CEE_LEAVE); main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset; /* end catch */ mono_mb_patch_branch (mb, pos_leave); if (copy_return) mono_mb_emit_ldloc (mb, loc_return); mono_mb_emit_byte (mb, CEE_RET); mono_mb_set_clauses (mb, 1, main_clause); #endif res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16); mono_mb_free (mb); return res; } /* mono_marshal_get_xappdomain_invoke () * Generates a fast remoting wrapper for cross app domain calls. */ MonoMethod * mono_marshal_get_xappdomain_invoke (MonoMethod *method) { MonoMethodSignature *sig; MonoMethodBuilder *mb; MonoMethod *res; int i, j, complex_count, complex_out_count, copy_locals_base; int *marshal_types; MonoClass *ret_class = NULL; MonoMethod *xdomain_method; int ret_marshal_type = MONO_MARSHAL_NONE; int loc_array=0, loc_serialized_data=-1, loc_real_proxy; int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context; int pos, pos_dispatch, pos_noex; gboolean copy_return = FALSE; g_assert (method); if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE) return method; /* we cant remote methods without this pointer */ if (!mono_method_signature (method)->hasthis) return method; if (!mono_marshal_supports_fast_xdomain (method)) return mono_marshal_get_remoting_invoke (method); mono_remoting_marshal_init (); if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE))) return res; sig = mono_signature_no_pinvoke (method); mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE); mb->method->save_lmf = 1; /* Count the number of parameters that need to be serialized */ marshal_types = alloca (sizeof (int) * sig->param_count); complex_count = complex_out_count = 0; for (i = 0; i < sig->param_count; i++) { MonoType *ptype = sig->params[i]; int mt = mono_get_xdomain_marshal_type (ptype); /* If the [Out] attribute is applied to a parameter that can be internally copied, * the copy will be made by reusing the original object instance */ if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref) mt = MONO_MARSHAL_COPY_OUT; else if (mt == MONO_MARSHAL_SERIALIZE) { complex_count++; if (ptype->byref) complex_out_count++; } marshal_types [i] = mt; } if (sig->ret->type != MONO_TYPE_VOID) { ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret); ret_class = mono_class_from_mono_type (sig->ret); copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE; } /* Locals */ #ifndef DISABLE_JIT if (complex_count > 0) loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg); loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); if (copy_return) loc_return = mono_mb_add_local (mb, sig->ret); loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg); loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg); loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg); loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); /* Save thread domain data */ mono_mb_emit_icall (mb, mono_context_get); mono_mb_emit_byte (mb, CEE_DUP); mono_mb_emit_stloc (mb, loc_context); /* If the thread is not running in the default context, it needs to go * through the whole remoting sink, since the context is going to change */ mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL); pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S); /* Another case in which the fast path can't be used: when the target domain * has a different image for the same assembly. */ /* Get the target domain id */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp)); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_byte (mb, CEE_DUP); mono_mb_emit_stloc (mb, loc_real_proxy); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id)); mono_mb_emit_byte (mb, CEE_LDIND_I4); mono_mb_emit_stloc (mb, loc_domainid); /* Check if the target domain has the same image for the required assembly */ mono_mb_emit_ldloc (mb, loc_domainid); mono_mb_emit_ptr (mb, method->klass->image); mono_mb_emit_icall (mb, mono_marshal_check_domain_image); pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S); /* Use the whole remoting sink to dispatch this message */ mono_mb_patch_short_branch (mb, pos); mono_mb_emit_ldarg (mb, 0); for (i = 0; i < sig->param_count; i++) mono_mb_emit_ldarg (mb, i + 1); mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL); mono_mb_emit_byte (mb, CEE_RET); mono_mb_patch_short_branch (mb, pos_dispatch); /* Create the array that will hold the parameters to be serialized */ if (complex_count > 0) { mono_mb_emit_icon (mb, (ret_marshal_type == MONO_MARSHAL_SERIALIZE && complex_out_count > 0) ? complex_count + 1 : complex_count); /* +1 for the return type */ mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class); j = 0; for (i = 0; i < sig->param_count; i++) { MonoClass *pclass; if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue; pclass = mono_class_from_mono_type (sig->params[i]); mono_mb_emit_byte (mb, CEE_DUP); mono_mb_emit_icon (mb, j); mono_mb_emit_ldarg (mb, i + 1); /* 0=this */ if (sig->params[i]->byref) { if (pclass->valuetype) mono_mb_emit_op (mb, CEE_LDOBJ, pclass); else mono_mb_emit_byte (mb, CEE_LDIND_REF); } if (pclass->valuetype) mono_mb_emit_op (mb, CEE_BOX, pclass); mono_mb_emit_byte (mb, CEE_STELEM_REF); j++; } mono_mb_emit_stloc (mb, loc_array); /* Serialize parameters */ mono_mb_emit_ldloc (mb, loc_array); mono_mb_emit_managed_call (mb, method_rs_serialize, NULL); mono_mb_emit_stloc (mb, loc_serialized_data); } else { mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_managed_call (mb, method_rs_serialize, NULL); mono_mb_emit_stloc (mb, loc_serialized_data); } /* switch domain */ mono_mb_emit_ldloc (mb, loc_domainid); mono_mb_emit_byte (mb, CEE_LDC_I4_1); mono_marshal_emit_switch_domain (mb); mono_mb_emit_stloc (mb, loc_old_domainid); /* Load the arguments */ mono_mb_emit_ldloc (mb, loc_real_proxy); mono_mb_emit_ldloc_addr (mb, loc_serialized_data); mono_mb_emit_ldloc_addr (mb, loc_serialized_exc); copy_locals_base = mb->locals; for (i = 0; i < sig->param_count; i++) { switch (marshal_types [i]) { case MONO_MARSHAL_SERIALIZE: continue; case MONO_MARSHAL_COPY: { mono_mb_emit_ldarg (mb, i+1); if (sig->params [i]->byref) { /* make a local copy of the byref parameter. The real parameter * will be updated after the xdomain call */ MonoClass *pclass = mono_class_from_mono_type (sig->params [i]); int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg)); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_stloc (mb, copy_local); mono_mb_emit_ldloc_addr (mb, copy_local); } break; } case MONO_MARSHAL_COPY_OUT: case MONO_MARSHAL_NONE: mono_mb_emit_ldarg (mb, i+1); break; } } /* Make the call to the invoke wrapper in the target domain */ xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type); mono_marshal_emit_load_domain_method (mb, xdomain_method); mono_mb_emit_calli (mb, mono_method_signature (xdomain_method)); if (copy_return) mono_mb_emit_stloc (mb, loc_return); /* Switch domain */ mono_mb_emit_ldloc (mb, loc_old_domainid); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_marshal_emit_switch_domain (mb); mono_mb_emit_byte (mb, CEE_POP); /* Restore thread domain data */ mono_mb_emit_ldloc (mb, loc_context); mono_mb_emit_icall (mb, mono_context_set); /* if (loc_serialized_exc != null) ... */ mono_mb_emit_ldloc (mb, loc_serialized_exc); pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S); mono_mb_emit_ldloc (mb, loc_serialized_exc); mono_marshal_emit_xdomain_copy_value (mb, byte_array_class); mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL); mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class); mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL); mono_mb_emit_byte (mb, CEE_THROW); mono_mb_patch_short_branch (mb, pos_noex); /* copy back non-serialized output parameters */ j = 0; for (i = 0; i < sig->param_count; i++) { if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue; mono_mb_emit_ldarg (mb, i + 1); mono_mb_emit_ldloc (mb, copy_locals_base + (j++)); mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i])); mono_mb_emit_byte (mb, CEE_STIND_REF); } /* Deserialize out parameters */ if (complex_out_count > 0) { mono_mb_emit_ldloc (mb, loc_serialized_data); mono_marshal_emit_xdomain_copy_value (mb, byte_array_class); mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL); mono_mb_emit_stloc (mb, loc_array); /* Copy back output parameters and return type */ j = 0; for (i = 0; i < sig->param_count; i++) { if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue; if (sig->params[i]->byref) { MonoClass *pclass = mono_class_from_mono_type (sig->params [i]); mono_mb_emit_ldarg (mb, i + 1); mono_mb_emit_ldloc (mb, loc_array); mono_mb_emit_icon (mb, j); mono_mb_emit_byte (mb, CEE_LDELEM_REF); if (pclass->valuetype) { mono_mb_emit_op (mb, CEE_UNBOX, pclass); mono_mb_emit_op (mb, CEE_LDOBJ, pclass); mono_mb_emit_op (mb, CEE_STOBJ, pclass); } else { if (pclass != mono_defaults.object_class) mono_mb_emit_op (mb, CEE_CASTCLASS, pclass); mono_mb_emit_byte (mb, CEE_STIND_REF); } } j++; } if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) { mono_mb_emit_ldloc (mb, loc_array); mono_mb_emit_icon (mb, complex_count); mono_mb_emit_byte (mb, CEE_LDELEM_REF); if (ret_class->valuetype) { mono_mb_emit_op (mb, CEE_UNBOX, ret_class); mono_mb_emit_op (mb, CEE_LDOBJ, ret_class); } } } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) { mono_mb_emit_ldloc (mb, loc_serialized_data); mono_marshal_emit_xdomain_copy_value (mb, byte_array_class); mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL); if (ret_class->valuetype) { mono_mb_emit_op (mb, CEE_UNBOX, ret_class); mono_mb_emit_op (mb, CEE_LDOBJ, ret_class); } else if (ret_class != mono_defaults.object_class) { mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class); } } else { mono_mb_emit_ldloc (mb, loc_serialized_data); mono_mb_emit_byte (mb, CEE_DUP); pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S); mono_marshal_emit_xdomain_copy_value (mb, byte_array_class); mono_mb_patch_short_branch (mb, pos); mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL); mono_mb_emit_byte (mb, CEE_POP); } if (copy_return) { mono_mb_emit_ldloc (mb, loc_return); if (ret_marshal_type == MONO_MARSHAL_COPY) mono_marshal_emit_xdomain_copy_value (mb, ret_class); } mono_mb_emit_byte (mb, CEE_RET); #endif /* DISABLE_JIT */ res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16); mono_mb_free (mb); return res; } MonoMethod * mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type) { if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) { return mono_marshal_get_xappdomain_invoke (method); } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) { #ifndef DISABLE_COM return mono_cominterop_get_invoke (method); #else g_assert_not_reached (); #endif } else { return mono_marshal_get_remoting_invoke (method); } /* Not erached */ return NULL; } G_GNUC_UNUSED static gpointer mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method) { if (rp->target_domain_id != -1) return mono_compile_method (mono_marshal_get_xappdomain_invoke (method)); else return mono_compile_method (mono_marshal_get_remoting_invoke (method)); } MonoMethod * mono_marshal_get_remoting_invoke_with_check (MonoMethod *method) { MonoMethodSignature *sig; MonoMethodBuilder *mb; MonoMethod *res, *native; int i, pos, pos_rem; g_assert (method); if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK) return method; /* we cant remote methods without this pointer */ g_assert (mono_method_signature (method)->hasthis); if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK))) return res; sig = mono_signature_no_pinvoke (method); mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK); #ifndef DISABLE_JIT for (i = 0; i <= sig->param_count; i++) mono_mb_emit_ldarg (mb, i); mono_mb_emit_ldarg (mb, 0); pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN); if (mono_marshal_supports_fast_xdomain (method)) { mono_mb_emit_ldarg (mb, 0); pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ); /* wrapper for cross app domain calls */ native = mono_marshal_get_xappdomain_invoke (method); mono_mb_emit_managed_call (mb, native, mono_method_signature (native)); mono_mb_emit_byte (mb, CEE_RET); mono_mb_patch_branch (mb, pos_rem); } /* wrapper for normal remote calls */ native = mono_marshal_get_remoting_invoke (method); mono_mb_emit_managed_call (mb, native, mono_method_signature (native)); mono_mb_emit_byte (mb, CEE_RET); /* not a proxy */ mono_mb_patch_branch (mb, pos); mono_mb_emit_managed_call (mb, method, mono_method_signature (method)); mono_mb_emit_byte (mb, CEE_RET); #endif res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16); mono_mb_free (mb); return res; } #endif /* DISABLE_REMOTING */ typedef struct { MonoMethodSignature *sig; MonoMethod *method; } SignatureMethodPair; static guint signature_method_pair_hash (gconstpointer data) { SignatureMethodPair *pair = (SignatureMethodPair*)data; return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method); } static gboolean signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2) { return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method); } static gboolean signature_method_pair_matches_method (gpointer key, gpointer value, gpointer user_data) { SignatureMethodPair *pair = (SignatureMethodPair*)key; MonoMethod *method = (MonoMethod*)user_data; return pair->method == method; } static void free_signature_method_pair (SignatureMethodPair *pair) { g_free (pair); } /* * the returned method invokes all methods in a multicast delegate. */ MonoMethod * mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del) { MonoMethodSignature *sig, *static_sig, *invoke_sig; int i; MonoMethodBuilder *mb; MonoMethod *res, *newm; GHashTable *cache; SignatureMethodPair key; SignatureMethodPair *new_key; int local_prev, local_target; int pos0; char *name; MonoMethod *target_method = NULL; MonoClass *target_class = NULL; gboolean callvirt = FALSE; gboolean closed_over_null = FALSE; gboolean static_method_with_first_arg_bound = FALSE; MonoGenericContext *ctx = NULL; MonoGenericContainer *container = NULL; MonoMethod *orig_method = NULL; WrapperInfo *info; /* * If the delegate target is null, and the target method is not static, a virtual * call is made to that method with the first delegate argument as this. This is * a non-documented .NET feature. */ if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) { callvirt = TRUE; target_method = del->method; if (target_method->is_inflated) { MonoType *target_type; g_assert (method->signature->hasthis); target_type = mono_class_inflate_generic_type (method->signature->params [0], mono_method_get_context (method)); target_class = mono_class_from_mono_type (target_type); } else { target_class = del->method->klass; } } g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class && !strcmp (method->name, "Invoke")); invoke_sig = sig = mono_signature_no_pinvoke (method); if (callvirt) closed_over_null = sig->param_count == mono_method_signature (del->method)->param_count; if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) { g_assert (!callvirt); invoke_sig = mono_method_signature (del->method); target_method = NULL; static_method_with_first_arg_bound = TRUE; } /* * For generic delegates, create a generic wrapper, and returns an instance to help AOT. */ if (method->is_inflated && !callvirt && !static_method_with_first_arg_bound) { orig_method = method; ctx = &((MonoMethodInflated*)method)->context; method = ((MonoMethodInflated*)method)->declaring; container = mono_method_get_generic_container (method); if (!container) container = method->klass->generic_container; g_assert (container); invoke_sig = sig = mono_signature_no_pinvoke (method); } /* * Check cache */ if (ctx) { cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL); res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx); if (res) return res; } else if (static_method_with_first_arg_bound) { cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache, (GHashFunc)mono_signature_hash, (GCompareFunc)mono_metadata_signature_equal); /* * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig. */ res = mono_marshal_find_in_cache (cache, invoke_sig); if (res) return res; } else if (callvirt) { GHashTable **cache_ptr; cache_ptr = &method->klass->image->delegate_abstract_invoke_cache; /* We need to cache the signature+method pair */ mono_marshal_lock (); if (!*cache_ptr) *cache_ptr = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL); cache = *cache_ptr; key.sig = invoke_sig; key.method = target_method; res = g_hash_table_lookup (cache, &key); mono_marshal_unlock (); if (res) return res; } else { cache = get_cache (&method->klass->image->delegate_invoke_cache, (GHashFunc)mono_signature_hash, (GCompareFunc)mono_metadata_signature_equal); res = mono_marshal_find_in_cache (cache, sig); if (res) return res; } static_sig = signature_dup (method->klass->image, sig); static_sig->hasthis = 0; if (!static_method_with_first_arg_bound) invoke_sig = static_sig; if (static_method_with_first_arg_bound) name = mono_signature_to_name (invoke_sig, "invoke_bound_"); else name = mono_signature_to_name (sig, "invoke"); if (ctx) mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE); else mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE); g_free (name); #ifndef DISABLE_JIT /* allocate local 0 (object) */ local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); g_assert (sig->hasthis); /* * if (prev != null) * prev.Invoke( args .. ); * return this.( args .. ); */ /* this wrapper can be used in unmanaged-managed transitions */ emit_thread_interrupt_checkpoint (mb); /* get this->prev */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev)); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_stloc (mb, local_prev); mono_mb_emit_ldloc (mb, local_prev); /* if prev != null */ pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE); /* then recurse */ mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN); mono_mb_emit_ldloc (mb, local_prev); for (i = 0; i < sig->param_count; i++) mono_mb_emit_ldarg (mb, i + 1); if (ctx) mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method (method, &container->context)); else mono_mb_emit_op (mb, CEE_CALLVIRT, method); if (sig->ret->type != MONO_TYPE_VOID) mono_mb_emit_byte (mb, CEE_POP); /* continued or prev == null */ mono_mb_patch_branch (mb, pos0); /* get this->target */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target)); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_stloc (mb, local_target); /*static methods with bound first arg can have null target and still be bound*/ if (!static_method_with_first_arg_bound) { /* if target != null */ mono_mb_emit_ldloc (mb, local_target); pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE); /* then call this->method_ptr nonstatic */ if (callvirt) { // FIXME: mono_mb_emit_exception_full (mb, "System", "NotImplementedException", ""); } else { mono_mb_emit_ldloc (mb, local_target); for (i = 0; i < sig->param_count; ++i) mono_mb_emit_ldarg (mb, i + 1); mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr)); mono_mb_emit_byte (mb, CEE_LDIND_I ); mono_mb_emit_op (mb, CEE_CALLI, sig); mono_mb_emit_byte (mb, CEE_RET); } /* else [target == null] call this->method_ptr static */ mono_mb_patch_branch (mb, pos0); } if (callvirt) { if (!closed_over_null) { mono_mb_emit_ldarg (mb, 1); mono_mb_emit_op (mb, CEE_CASTCLASS, target_class); for (i = 1; i < sig->param_count; ++i) mono_mb_emit_ldarg (mb, i + 1); mono_mb_emit_op (mb, CEE_CALLVIRT, target_method); } else { mono_mb_emit_byte (mb, CEE_LDNULL); for (i = 0; i < sig->param_count; ++i) mono_mb_emit_ldarg (mb, i + 1); mono_mb_emit_op (mb, CEE_CALL, target_method); } } else { if (static_method_with_first_arg_bound) { mono_mb_emit_ldloc (mb, local_target); if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0])) mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0])); } for (i = 0; i < sig->param_count; ++i) mono_mb_emit_ldarg (mb, i + 1); mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr)); mono_mb_emit_byte (mb, CEE_LDIND_I ); mono_mb_emit_op (mb, CEE_CALLI, invoke_sig); } mono_mb_emit_byte (mb, CEE_RET); mb->skip_visibility = 1; #endif /* DISABLE_JIT */ if (ctx) { MonoMethod *def; def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16); res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx); } else if (static_method_with_first_arg_bound) { res = mono_mb_create_and_cache (cache, invoke_sig, mb, sig, sig->param_count + 16); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND); mono_marshal_set_wrapper_info (res, info); } else if (callvirt) { // From mono_mb_create_and_cache newm = mono_mb_create_method (mb, sig, sig->param_count + 16); /*We perform double checked locking, so must fence before publishing*/ mono_memory_barrier (); mono_marshal_lock (); res = g_hash_table_lookup (cache, &key); if (!res) { res = newm; new_key = g_new0 (SignatureMethodPair, 1); *new_key = key; if (static_method_with_first_arg_bound) new_key->sig = signature_dup (del->method->klass->image, key.sig); g_hash_table_insert (cache, new_key, res); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL); mono_marshal_set_wrapper_info (res, info); mono_marshal_unlock (); } else { mono_marshal_unlock (); mono_free_method (newm); } } else { res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE); mono_marshal_set_wrapper_info (res, info); } mono_mb_free (mb); return res; } /* * signature_dup_add_this: * * Make a copy of @sig, adding an explicit this argument. */ static MonoMethodSignature* signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass) { MonoMethodSignature *res; int i; res = mono_metadata_signature_alloc (image, sig->param_count + 1); memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE); res->param_count = sig->param_count + 1; res->hasthis = FALSE; for (i = sig->param_count - 1; i >= 0; i --) res->params [i + 1] = sig->params [i]; res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg; return res; } typedef struct { MonoMethodSignature *ctor_sig; MonoMethodSignature *sig; } CtorSigPair; /* protected by the marshal lock, contains CtorSigPair pointers */ static GSList *strsig_list = NULL; static MonoMethodSignature * lookup_string_ctor_signature (MonoMethodSignature *sig) { MonoMethodSignature *callsig; CtorSigPair *cs; GSList *item; mono_marshal_lock (); callsig = NULL; for (item = strsig_list; item; item = item->next) { cs = item->data; /* mono_metadata_signature_equal () is safe to call with the marshal lock * because it is lock-free. */ if (mono_metadata_signature_equal (sig, cs->ctor_sig)) { callsig = cs->sig; break; } } mono_marshal_unlock (); return callsig; } static MonoMethodSignature * add_string_ctor_signature (MonoMethod *method) { MonoMethodSignature *callsig; CtorSigPair *cs; callsig = signature_dup (method->klass->image, mono_method_signature (method)); callsig->ret = &mono_defaults.string_class->byval_arg; cs = g_new (CtorSigPair, 1); cs->sig = callsig; cs->ctor_sig = mono_method_signature (method); mono_marshal_lock (); strsig_list = g_slist_prepend (strsig_list, cs); mono_marshal_unlock (); return callsig; } /* * mono_marshal_get_string_ctor_signature: * * Return the modified signature used by string ctors (they return the newly created * string). */ MonoMethodSignature* mono_marshal_get_string_ctor_signature (MonoMethod *method) { MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method)); if (!sig) sig = add_string_ctor_signature (method); return sig; } static MonoType* get_runtime_invoke_type (MonoType *t, gboolean ret) { if (t->byref) { if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) return t; /* Can't share this with 'I' as that needs another indirection */ return &mono_defaults.int_class->this_arg; } if (MONO_TYPE_IS_REFERENCE (t)) return &mono_defaults.object_class->byval_arg; if (ret) /* The result needs to be boxed */ return t; handle_enum: switch (t->type) { /* Can't share these as the argument needs to be loaded using sign/zero extension */ /* case MONO_TYPE_U1: return &mono_defaults.sbyte_class->byval_arg; case MONO_TYPE_U2: return &mono_defaults.int16_class->byval_arg; case MONO_TYPE_U4: return &mono_defaults.int32_class->byval_arg; */ case MONO_TYPE_U8: return &mono_defaults.int64_class->byval_arg; case MONO_TYPE_BOOLEAN: return &mono_defaults.byte_class->byval_arg; case MONO_TYPE_CHAR: return &mono_defaults.uint16_class->byval_arg; case MONO_TYPE_U: case MONO_TYPE_PTR: return &mono_defaults.int_class->byval_arg; case MONO_TYPE_VALUETYPE: if (t->data.klass->enumtype) { t = mono_class_enum_basetype (t->data.klass); goto handle_enum; } return t; default: return t; } } /* * mono_marshal_get_runtime_invoke_sig: * * Return a common signature used for sharing runtime invoke wrappers. */ static MonoMethodSignature* mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig) { MonoMethodSignature *res = mono_metadata_signature_dup (sig); int i; res->ret = get_runtime_invoke_type (sig->ret, TRUE); for (i = 0; i < res->param_count; ++i) res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE); return res; } static gboolean runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2) { /* Can't share wrappers which return a vtype since it needs to be boxed */ if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)) && !mono_metadata_type_equal (sig1->ret, sig2->ret)) return FALSE; else return mono_metadata_signature_equal (sig1, sig2); } #ifndef DISABLE_JIT /* * emit_invoke_call: * * Emit the call to the wrapper method from a runtime invoke wrapper. */ static void emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method, MonoMethodSignature *sig, MonoMethodSignature *callsig, int loc_res, gboolean virtual, gboolean need_direct_wrapper) { static MonoString *string_dummy = NULL; int i; int *tmp_nullable_locals; gboolean void_ret = FALSE; /* to make it work with our special string constructors */ if (!string_dummy) { MONO_GC_REGISTER_ROOT_SINGLE (string_dummy); string_dummy = mono_string_new_wrapper ("dummy"); } if (virtual) { g_assert (sig->hasthis); g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL); } if (sig->hasthis) { if (method->string_ctor) { if (mono_gc_is_moving ()) { mono_mb_emit_ptr (mb, &string_dummy); mono_mb_emit_byte (mb, CEE_LDIND_REF); } else { mono_mb_emit_ptr (mb, string_dummy); } } else { mono_mb_emit_ldarg (mb, 0); } } tmp_nullable_locals = g_new0 (int, sig->param_count); for (i = 0; i < sig->param_count; i++) { MonoType *t = sig->params [i]; int type; mono_mb_emit_ldarg (mb, 1); if (i) { mono_mb_emit_icon (mb, sizeof (gpointer) * i); mono_mb_emit_byte (mb, CEE_ADD); } if (t->byref) { mono_mb_emit_byte (mb, CEE_LDIND_I); /* A Nullable type don't have a boxed form, it's either null or a boxed T. * So to make this work we unbox it to a local variablee and push a reference to that. */ if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) { tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg); mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t)); mono_mb_emit_stloc (mb, tmp_nullable_locals [i]); mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]); } continue; } /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/ type = sig->params [i]->type; handle_enum: switch (type) { case MONO_TYPE_I1: case MONO_TYPE_BOOLEAN: case MONO_TYPE_U1: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_CHAR: case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_R4: case MONO_TYPE_R8: case MONO_TYPE_I8: case MONO_TYPE_U8: mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i])); break; case MONO_TYPE_STRING: case MONO_TYPE_CLASS: case MONO_TYPE_ARRAY: case MONO_TYPE_PTR: case MONO_TYPE_SZARRAY: case MONO_TYPE_OBJECT: mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i])); break; case MONO_TYPE_GENERICINST: if (!mono_type_generic_inst_is_valuetype (sig->params [i])) { mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i])); break; } /* fall through */ case MONO_TYPE_VALUETYPE: if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) { type = mono_class_enum_basetype (t->data.klass)->type; goto handle_enum; } mono_mb_emit_byte (mb, CEE_LDIND_I); if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) { /* Need to convert a boxed vtype to an mp to a Nullable struct */ mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i])); mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i])); } else { mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i])); } break; default: g_assert_not_reached (); } } if (virtual) { mono_mb_emit_op (mb, CEE_CALLVIRT, method); } else if (need_direct_wrapper) { mono_mb_emit_op (mb, CEE_CALL, method); } else { mono_mb_emit_ldarg (mb, 3); mono_mb_emit_calli (mb, callsig); } if (sig->ret->byref) { /* fixme: */ g_assert_not_reached (); } switch (sig->ret->type) { case MONO_TYPE_VOID: if (!method->string_ctor) void_ret = TRUE; break; case MONO_TYPE_BOOLEAN: case MONO_TYPE_CHAR: case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_R4: case MONO_TYPE_R8: case MONO_TYPE_I8: case MONO_TYPE_U8: case MONO_TYPE_VALUETYPE: case MONO_TYPE_TYPEDBYREF: case MONO_TYPE_GENERICINST: /* box value types */ mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret)); break; case MONO_TYPE_STRING: case MONO_TYPE_CLASS: case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: case MONO_TYPE_OBJECT: /* nothing to do */ break; case MONO_TYPE_PTR: /* The result is an IntPtr */ mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class); break; default: g_assert_not_reached (); } if (!void_ret) mono_mb_emit_stloc (mb, loc_res); /* Convert back nullable-byref arguments */ for (i = 0; i < sig->param_count; i++) { MonoType *t = sig->params [i]; /* * Box the result and put it back into the array, the caller will have * to obtain it from there. */ if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) { mono_mb_emit_ldarg (mb, 1); mono_mb_emit_icon (mb, sizeof (gpointer) * i); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]); mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t)); mono_mb_emit_byte (mb, CEE_STIND_REF); } } g_free (tmp_nullable_locals); } static void emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method, MonoMethodSignature *sig, MonoMethodSignature *callsig, gboolean virtual, gboolean need_direct_wrapper) { gint32 labels [16]; MonoExceptionClause *clause; int loc_res, loc_exc; /* The wrapper looks like this: * * * if (exc) { * try { * return * } catch (Exception e) { * *exc = e; * } * } else { * return * } */ /* allocate local 0 (object) tmp */ loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); /* allocate local 1 (object) exc */ loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); /* *exc is assumed to be initialized to NULL by the caller */ mono_mb_emit_byte (mb, CEE_LDARG_2); labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE); /* * if (exc) case */ labels [1] = mono_mb_get_label (mb); emit_thread_force_interrupt_checkpoint (mb); emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper); labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE); /* Add a try clause around the call */ clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause)); clause->flags = MONO_EXCEPTION_CLAUSE_NONE; clause->data.catch_class = mono_defaults.exception_class; clause->try_offset = labels [1]; clause->try_len = mono_mb_get_label (mb) - labels [1]; clause->handler_offset = mono_mb_get_label (mb); /* handler code */ mono_mb_emit_stloc (mb, loc_exc); mono_mb_emit_byte (mb, CEE_LDARG_2); mono_mb_emit_ldloc (mb, loc_exc); mono_mb_emit_byte (mb, CEE_STIND_REF); mono_mb_emit_branch (mb, CEE_LEAVE); clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset; mono_mb_set_clauses (mb, 1, clause); mono_mb_patch_branch (mb, labels [2]); mono_mb_emit_ldloc (mb, loc_res); mono_mb_emit_byte (mb, CEE_RET); /* * if (!exc) case */ mono_mb_patch_branch (mb, labels [0]); emit_thread_force_interrupt_checkpoint (mb); emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_RET); } #endif /* * generates IL code for the runtime invoke function * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method) * * we also catch exceptions if exc != null * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since * it means that the compiled code for METHOD does not have to be looked up * before calling the runtime invoke wrapper. In this case, the wrapper ignores * its METHOD argument. */ MonoMethod * mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual) { MonoMethodSignature *sig, *csig, *callsig; MonoMethodBuilder *mb; GHashTable *cache = NULL; MonoClass *target_klass; MonoMethod *res = NULL; static MonoMethodSignature *cctor_signature = NULL; static MonoMethodSignature *finalize_signature = NULL; char *name; const char *param_names [16]; gboolean need_direct_wrapper = FALSE; WrapperInfo *info; g_assert (method); if (!cctor_signature) { cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0); cctor_signature->ret = &mono_defaults.void_class->byval_arg; } if (!finalize_signature) { finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0); finalize_signature->ret = &mono_defaults.void_class->byval_arg; finalize_signature->hasthis = 1; } if (virtual) need_direct_wrapper = TRUE; /* * Use a separate cache indexed by methods to speed things up and to avoid the * boundless mempool growth caused by the signature_dup stuff below. */ if (virtual) cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL); else cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL); res = mono_marshal_find_in_cache (cache, method); if (res) return res; if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) { /* * Array Get/Set/Address methods. The JIT implements them using inline code * so we need to create an invoke wrapper which calls the method directly. */ need_direct_wrapper = TRUE; } if (method->string_ctor) { callsig = lookup_string_ctor_signature (mono_method_signature (method)); if (!callsig) callsig = add_string_ctor_signature (method); /* Can't share this as we push a string as this */ need_direct_wrapper = TRUE; } else { if (method->dynamic) callsig = signature_dup (method->klass->image, mono_method_signature (method)); else callsig = mono_method_signature (method); } target_klass = get_wrapper_target_class (method->klass->image); /* Try to share wrappers for non-corlib methods with simple signatures */ if (mono_metadata_signature_equal (callsig, cctor_signature)) { callsig = cctor_signature; target_klass = mono_defaults.object_class; } else if (mono_metadata_signature_equal (callsig, finalize_signature)) { callsig = finalize_signature; target_klass = mono_defaults.object_class; } if (need_direct_wrapper) { /* Already searched at the start */ } else { MonoMethodSignature *tmp_sig; callsig = mono_marshal_get_runtime_invoke_sig (callsig); if (method->klass->valuetype && mono_method_signature (method)->hasthis) /* These have a different csig */ cache = get_cache (&target_klass->image->runtime_invoke_vtype_cache, (GHashFunc)mono_signature_hash, (GCompareFunc)runtime_invoke_signature_equal); else cache = get_cache (&target_klass->image->runtime_invoke_cache, (GHashFunc)mono_signature_hash, (GCompareFunc)runtime_invoke_signature_equal); /* from mono_marshal_find_in_cache */ mono_marshal_lock (); res = g_hash_table_lookup (cache, callsig); mono_marshal_unlock (); if (res) { g_free (callsig); return res; } /* Make a copy of the signature from the image mempool */ tmp_sig = callsig; callsig = mono_metadata_signature_dup_full (target_klass->image, callsig); g_free (tmp_sig); } sig = mono_method_signature (method); csig = mono_metadata_signature_alloc (target_klass->image, 4); csig->ret = &mono_defaults.object_class->byval_arg; if (method->klass->valuetype && mono_method_signature (method)->hasthis) csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE); else csig->params [0] = &mono_defaults.object_class->byval_arg; csig->params [1] = &mono_defaults.int_class->byval_arg; csig->params [2] = &mono_defaults.int_class->byval_arg; csig->params [3] = &mono_defaults.int_class->byval_arg; csig->pinvoke = 1; #if TARGET_WIN32 /* This is called from runtime code so it has to be cdecl */ csig->call_convention = MONO_CALL_C; #endif name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke"); mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE); g_free (name); #ifndef DISABLE_JIT param_names [0] = "this"; param_names [1] = "params"; param_names [2] = "exc"; param_names [3] = "method"; mono_mb_set_param_names (mb, param_names); emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper); #endif if (need_direct_wrapper) { #ifndef DISABLE_JIT mb->skip_visibility = 1; #endif res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16); info = mono_wrapper_info_create (res, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT); info->d.runtime_invoke.method = method; mono_marshal_set_wrapper_info (res, info); } else { /* taken from mono_mb_create_and_cache */ mono_marshal_lock (); res = g_hash_table_lookup (cache, callsig); mono_marshal_unlock (); /* Somebody may have created it before us */ if (!res) { MonoMethod *newm; newm = mono_mb_create_method (mb, csig, sig->param_count + 16); mono_marshal_lock (); res = g_hash_table_lookup (cache, callsig); if (!res) { res = newm; g_hash_table_insert (cache, callsig, res); /* Can't insert it into wrapper_hash since the key is a signature */ g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL); info->d.runtime_invoke.sig = callsig; mono_marshal_set_wrapper_info (res, info); } else { mono_free_method (newm); } mono_marshal_unlock (); } /* end mono_mb_create_and_cache */ } mono_mb_free (mb); return res; } /* * mono_marshal_get_runtime_invoke_dynamic: * * Return a method which can be used to invoke managed methods from native code * dynamically. * The signature of the returned method is given by RuntimeInvokeDynamicFunction: * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method) * ARGS should point to an architecture specific structure containing * the arguments and space for the return value. * The other arguments are the same as for runtime_invoke (), except that * ARGS should contain the this argument too. * This wrapper serves the same purpose as the runtime-invoke wrappers, but there * is only one copy of it, which is useful in full-aot. * The wrapper info for the wrapper is a WrapperInfo structure. */ MonoMethod* mono_marshal_get_runtime_invoke_dynamic (void) { static MonoMethod *method; MonoMethodSignature *csig; MonoExceptionClause *clause; MonoMethodBuilder *mb; int pos, posna; char *name; WrapperInfo *info; if (method) return method; csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4); csig->ret = &mono_defaults.void_class->byval_arg; csig->params [0] = &mono_defaults.int_class->byval_arg; csig->params [1] = &mono_defaults.int_class->byval_arg; csig->params [2] = &mono_defaults.int_class->byval_arg; csig->params [3] = &mono_defaults.int_class->byval_arg; name = g_strdup ("runtime_invoke_dynamic"); mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE); g_free (name); #ifndef DISABLE_JIT /* allocate local 0 (object) tmp */ mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); /* allocate local 1 (object) exc */ mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); /* cond set *exc to null */ mono_mb_emit_byte (mb, CEE_LDARG_1); mono_mb_emit_byte (mb, CEE_BRFALSE_S); mono_mb_emit_byte (mb, 3); mono_mb_emit_byte (mb, CEE_LDARG_1); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_byte (mb, CEE_STIND_REF); emit_thread_force_interrupt_checkpoint (mb); mono_mb_emit_byte (mb, CEE_LDARG_0); mono_mb_emit_byte (mb, CEE_LDARG_2); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL); pos = mono_mb_emit_branch (mb, CEE_LEAVE); clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause)); clause->flags = MONO_EXCEPTION_CLAUSE_FILTER; clause->try_len = mono_mb_get_label (mb); /* filter code */ clause->data.filter_offset = mono_mb_get_label (mb); mono_mb_emit_byte (mb, CEE_POP); mono_mb_emit_byte (mb, CEE_LDARG_1); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_CGT_UN); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_ENDFILTER); clause->handler_offset = mono_mb_get_label (mb); /* handler code */ /* store exception */ mono_mb_emit_stloc (mb, 1); mono_mb_emit_byte (mb, CEE_LDARG_1); mono_mb_emit_ldloc (mb, 1); mono_mb_emit_byte (mb, CEE_STIND_REF); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_stloc (mb, 0); /* Check for the abort exception */ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class); posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S); /* Delay the abort exception */ mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort); mono_mb_patch_short_branch (mb, posna); mono_mb_emit_branch (mb, CEE_LEAVE); clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset; mono_mb_set_clauses (mb, 1, clause); /* return result */ mono_mb_patch_branch (mb, pos); //mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_RET); #endif /* DISABLE_JIT */ mono_marshal_lock (); /* double-checked locking */ if (!method) { method = mono_mb_create_method (mb, csig, 16); info = mono_wrapper_info_create (method, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC); mono_marshal_set_wrapper_info (method, info); } mono_marshal_unlock (); mono_mb_free (mb); return method; } #ifndef DISABLE_JIT static void mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass) { char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit", klass->name_space, klass->name); mono_mb_emit_exception_marshal_directive (mb, msg); } #endif #ifndef DISABLE_REMOTING /* * mono_marshal_get_ldfld_remote_wrapper: * @klass: The return type * * This method generates a wrapper for calling mono_load_remote_field_new. * The return type is ignored for now, as mono_load_remote_field_new () always * returns an object. In the future, to optimize some codepaths, we might * call a different function that takes a pointer to a valuetype, instead. */ MonoMethod * mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass) { MonoMethodSignature *sig, *csig; MonoMethodBuilder *mb; MonoMethod *res; static MonoMethod* cached = NULL; mono_marshal_lock (); if (cached) { mono_marshal_unlock (); return cached; } mono_marshal_unlock (); mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE); mb->method->save_lmf = 1; sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3); sig->params [0] = &mono_defaults.object_class->byval_arg; sig->params [1] = &mono_defaults.int_class->byval_arg; sig->params [2] = &mono_defaults.int_class->byval_arg; sig->ret = &mono_defaults.object_class->byval_arg; #ifndef DISABLE_JIT mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldarg (mb, 1); mono_mb_emit_ldarg (mb, 2); csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3); csig->params [0] = &mono_defaults.object_class->byval_arg; csig->params [1] = &mono_defaults.int_class->byval_arg; csig->params [2] = &mono_defaults.int_class->byval_arg; csig->ret = &mono_defaults.object_class->byval_arg; csig->pinvoke = 1; mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new); emit_thread_interrupt_checkpoint (mb); mono_mb_emit_byte (mb, CEE_RET); #endif mono_marshal_lock (); res = cached; mono_marshal_unlock (); if (!res) { MonoMethod *newm; newm = mono_mb_create_method (mb, sig, 4); mono_marshal_lock (); res = cached; if (!res) { res = newm; cached = res; mono_marshal_unlock (); } else { mono_marshal_unlock (); mono_free_method (newm); } } mono_mb_free (mb); return res; } /* * mono_marshal_get_ldfld_wrapper: * @type: the type of the field * * This method generates a function which can be use to load a field with type * @type from an object. The generated function has the following signature: * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset) */ MonoMethod * mono_marshal_get_ldfld_wrapper (MonoType *type) { MonoMethodSignature *sig; MonoMethodBuilder *mb; MonoMethod *res; MonoClass *klass; GHashTable *cache; char *name; int t, pos0, pos1 = 0; type = mono_type_get_underlying_type (type); t = type->type; if (!type->byref) { if (type->type == MONO_TYPE_SZARRAY) { klass = mono_defaults.array_class; } else if (type->type == MONO_TYPE_VALUETYPE) { klass = type->data.klass; } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) { klass = mono_defaults.object_class; } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) { klass = mono_defaults.int_class; } else if (t == MONO_TYPE_GENERICINST) { if (mono_type_generic_inst_is_valuetype (type)) klass = mono_class_from_mono_type (type); else klass = mono_defaults.object_class; } else { klass = mono_class_from_mono_type (type); } } else { klass = mono_defaults.int_class; } cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, klass))) return res; /* we add the %p pointer value of klass because class names are not unique */ name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name); mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD); g_free (name); sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4); sig->params [0] = &mono_defaults.object_class->byval_arg; sig->params [1] = &mono_defaults.int_class->byval_arg; sig->params [2] = &mono_defaults.int_class->byval_arg; sig->params [3] = &mono_defaults.int_class->byval_arg; sig->ret = &klass->byval_arg; #ifndef DISABLE_JIT mono_mb_emit_ldarg (mb, 0); pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN); mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldarg (mb, 1); mono_mb_emit_ldarg (mb, 2); mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL); /* csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3); csig->params [0] = &mono_defaults.object_class->byval_arg; csig->params [1] = &mono_defaults.int_class->byval_arg; csig->params [2] = &mono_defaults.int_class->byval_arg; csig->ret = &klass->this_arg; csig->pinvoke = 1; mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new); emit_thread_interrupt_checkpoint (mb); */ if (klass->valuetype) { mono_mb_emit_op (mb, CEE_UNBOX, klass); pos1 = mono_mb_emit_branch (mb, CEE_BR); } else { mono_mb_emit_byte (mb, CEE_RET); } mono_mb_patch_branch (mb, pos0); mono_mb_emit_ldarg (mb, 0); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_OBJADDR); mono_mb_emit_ldarg (mb, 3); mono_mb_emit_byte (mb, CEE_ADD); if (klass->valuetype) mono_mb_patch_branch (mb, pos1); switch (t) { case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_BOOLEAN: case MONO_TYPE_CHAR: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_I8: case MONO_TYPE_U8: case MONO_TYPE_R4: case MONO_TYPE_R8: case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: case MONO_TYPE_OBJECT: case MONO_TYPE_CLASS: case MONO_TYPE_STRING: case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_PTR: case MONO_TYPE_FNPTR: mono_mb_emit_byte (mb, mono_type_to_ldind (type)); break; case MONO_TYPE_VALUETYPE: g_assert (!klass->enumtype); mono_mb_emit_op (mb, CEE_LDOBJ, klass); break; case MONO_TYPE_GENERICINST: if (mono_type_generic_inst_is_valuetype (type)) { mono_mb_emit_op (mb, CEE_LDOBJ, klass); } else { mono_mb_emit_byte (mb, CEE_LDIND_REF); } break; case MONO_TYPE_VAR: case MONO_TYPE_MVAR: mono_mb_emit_op (mb, CEE_LDOBJ, klass); break; default: g_warning ("type %x not implemented", type->type); g_assert_not_reached (); } mono_mb_emit_byte (mb, CEE_RET); #endif /* DISABLE_JIT */ res = mono_mb_create_and_cache (cache, klass, mb, sig, sig->param_count + 16); mono_mb_free (mb); return res; } /* * mono_marshal_get_ldflda_wrapper: * @type: the type of the field * * This method generates a function which can be used to load a field address * from an object. The generated function has the following signature: * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset); */ MonoMethod * mono_marshal_get_ldflda_wrapper (MonoType *type) { MonoMethodSignature *sig; MonoMethodBuilder *mb; MonoMethod *res; MonoClass *klass; GHashTable *cache; char *name; int t, pos0, pos1, pos2, pos3; type = mono_type_get_underlying_type (type); t = type->type; if (!type->byref) { if (type->type == MONO_TYPE_SZARRAY) { klass = mono_defaults.array_class; } else if (type->type == MONO_TYPE_VALUETYPE) { klass = type->data.klass; } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING || t == MONO_TYPE_CLASS) { klass = mono_defaults.object_class; } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) { klass = mono_defaults.int_class; } else if (t == MONO_TYPE_GENERICINST) { if (mono_type_generic_inst_is_valuetype (type)) klass = mono_class_from_mono_type (type); else klass = mono_defaults.object_class; } else { klass = mono_class_from_mono_type (type); } } else { klass = mono_defaults.int_class; } cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, klass))) return res; /* we add the %p pointer value of klass because class names are not unique */ name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name); mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA); g_free (name); sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4); sig->params [0] = &mono_defaults.object_class->byval_arg; sig->params [1] = &mono_defaults.int_class->byval_arg; sig->params [2] = &mono_defaults.int_class->byval_arg; sig->params [3] = &mono_defaults.int_class->byval_arg; sig->ret = &mono_defaults.int_class->byval_arg; #ifndef DISABLE_JIT /* if typeof (this) != transparent_proxy goto pos0 */ mono_mb_emit_ldarg (mb, 0); pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN); /* if same_appdomain goto pos1 */ mono_mb_emit_ldarg (mb, 0); pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ); mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain."); /* same app domain */ mono_mb_patch_branch (mb, pos1); /* if typeof (this) != contextbound goto pos2 */ mono_mb_emit_ldarg (mb, 0); pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ); /* if this->rp->context == mono_context_get goto pos3 */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp)); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context)); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_icall (mb, mono_context_get); pos3 = mono_mb_emit_branch (mb, CEE_BEQ); mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context."); mono_mb_patch_branch (mb, pos2); mono_mb_patch_branch (mb, pos3); /* return the address of the field from this->rp->unwrapped_server */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp)); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server)); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_OBJADDR); mono_mb_emit_ldarg (mb, 3); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_RET); /* not a proxy: return the address of the field directly */ mono_mb_patch_branch (mb, pos0); mono_mb_emit_ldarg (mb, 0); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_OBJADDR); mono_mb_emit_ldarg (mb, 3); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_RET); #endif res = mono_mb_create_and_cache (cache, klass, mb, sig, sig->param_count + 16); mono_mb_free (mb); return res; } /* * mono_marshal_get_stfld_remote_wrapper: * klass: The type of the field * * This function generates a wrapper for calling mono_store_remote_field_new * with the appropriate signature. * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the * klass argument anymore. */ MonoMethod * mono_marshal_get_stfld_remote_wrapper (MonoClass *klass) { MonoMethodSignature *sig, *csig; MonoMethodBuilder *mb; MonoMethod *res; static MonoMethod *cached = NULL; mono_marshal_lock (); if (cached) { mono_marshal_unlock (); return cached; } mono_marshal_unlock (); mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE); mb->method->save_lmf = 1; sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4); sig->params [0] = &mono_defaults.object_class->byval_arg; sig->params [1] = &mono_defaults.int_class->byval_arg; sig->params [2] = &mono_defaults.int_class->byval_arg; sig->params [3] = &mono_defaults.object_class->byval_arg; sig->ret = &mono_defaults.void_class->byval_arg; #ifndef DISABLE_JIT mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldarg (mb, 1); mono_mb_emit_ldarg (mb, 2); mono_mb_emit_ldarg (mb, 3); csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4); csig->params [0] = &mono_defaults.object_class->byval_arg; csig->params [1] = &mono_defaults.int_class->byval_arg; csig->params [2] = &mono_defaults.int_class->byval_arg; csig->params [3] = &mono_defaults.object_class->byval_arg; csig->ret = &mono_defaults.void_class->byval_arg; csig->pinvoke = 1; mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new); emit_thread_interrupt_checkpoint (mb); mono_mb_emit_byte (mb, CEE_RET); #endif mono_marshal_lock (); res = cached; mono_marshal_unlock (); if (!res) { MonoMethod *newm; newm = mono_mb_create_method (mb, sig, 6); mono_marshal_lock (); res = cached; if (!res) { res = newm; cached = res; mono_marshal_unlock (); } else { mono_marshal_unlock (); mono_free_method (newm); } } mono_mb_free (mb); return res; } /* * mono_marshal_get_stfld_wrapper: * @type: the type of the field * * This method generates a function which can be use to store a field with type * @type. The generated function has the following signature: * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val) */ MonoMethod * mono_marshal_get_stfld_wrapper (MonoType *type) { MonoMethodSignature *sig; MonoMethodBuilder *mb; MonoMethod *res; MonoClass *klass; GHashTable *cache; char *name; int t, pos; type = mono_type_get_underlying_type (type); t = type->type; if (!type->byref) { if (type->type == MONO_TYPE_SZARRAY) { klass = mono_defaults.array_class; } else if (type->type == MONO_TYPE_VALUETYPE) { klass = type->data.klass; } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) { klass = mono_defaults.object_class; } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) { klass = mono_defaults.int_class; } else if (t == MONO_TYPE_GENERICINST) { if (mono_type_generic_inst_is_valuetype (type)) klass = mono_class_from_mono_type (type); else klass = mono_defaults.object_class; } else { klass = mono_class_from_mono_type (type); } } else { klass = mono_defaults.int_class; } cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, klass))) return res; /* we add the %p pointer value of klass because class names are not unique */ name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name); mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD); g_free (name); sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5); sig->params [0] = &mono_defaults.object_class->byval_arg; sig->params [1] = &mono_defaults.int_class->byval_arg; sig->params [2] = &mono_defaults.int_class->byval_arg; sig->params [3] = &mono_defaults.int_class->byval_arg; sig->params [4] = &klass->byval_arg; sig->ret = &mono_defaults.void_class->byval_arg; #ifndef DISABLE_JIT mono_mb_emit_ldarg (mb, 0); pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN); mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldarg (mb, 1); mono_mb_emit_ldarg (mb, 2); mono_mb_emit_ldarg (mb, 4); if (klass->valuetype) mono_mb_emit_op (mb, CEE_BOX, klass); mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL); mono_mb_emit_byte (mb, CEE_RET); mono_mb_patch_branch (mb, pos); mono_mb_emit_ldarg (mb, 0); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_OBJADDR); mono_mb_emit_ldarg (mb, 3); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_ldarg (mb, 4); switch (t) { case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_BOOLEAN: case MONO_TYPE_CHAR: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_I8: case MONO_TYPE_U8: case MONO_TYPE_R4: case MONO_TYPE_R8: case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: case MONO_TYPE_OBJECT: case MONO_TYPE_CLASS: case MONO_TYPE_STRING: case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_PTR: case MONO_TYPE_FNPTR: mono_mb_emit_byte (mb, mono_type_to_stind (type)); break; case MONO_TYPE_VALUETYPE: g_assert (!klass->enumtype); mono_mb_emit_op (mb, CEE_STOBJ, klass); break; case MONO_TYPE_GENERICINST: case MONO_TYPE_VAR: case MONO_TYPE_MVAR: mono_mb_emit_op (mb, CEE_STOBJ, klass); break; default: g_warning ("type %x not implemented", type->type); g_assert_not_reached (); } mono_mb_emit_byte (mb, CEE_RET); #endif res = mono_mb_create_and_cache (cache, klass, mb, sig, sig->param_count + 16); mono_mb_free (mb); return res; } #endif /* DISABLE_REMOTING */ /* * generates IL code for the icall wrapper (the generated method * calls the unmanaged code in func) * The wrapper info for the wrapper is a WrapperInfo structure. */ MonoMethod * mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions) { MonoMethodSignature *csig, *csig2; MonoMethodBuilder *mb; MonoMethod *res; int i; WrapperInfo *info; g_assert (sig->pinvoke); mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE); mb->method->save_lmf = 1; /* Add an explicit this argument */ if (sig->hasthis) csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class); else csig2 = signature_dup (mono_defaults.corlib, sig); #ifndef DISABLE_JIT if (sig->hasthis) mono_mb_emit_byte (mb, CEE_LDARG_0); for (i = 0; i < sig->param_count; i++) mono_mb_emit_ldarg (mb, i + sig->hasthis); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func); mono_mb_emit_calli (mb, csig2); if (check_exceptions) emit_thread_interrupt_checkpoint (mb); mono_mb_emit_byte (mb, CEE_RET); #endif csig = signature_dup (mono_defaults.corlib, sig); csig->pinvoke = 0; if (csig->call_convention == MONO_CALL_VARARG) csig->call_convention = 0; res = mono_mb_create_method (mb, csig, csig->param_count + 16); mono_mb_free (mb); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ICALL_WRAPPER); info->d.icall.func = (gpointer)func; mono_marshal_set_wrapper_info (res, info); return res; } static int emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { #ifdef DISABLE_JIT if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE) *conv_arg_type = &mono_defaults.int_class->byval_arg; return conv_arg; #else MonoType *mtype; MonoClass *mklass; static MonoClass *ICustomMarshaler = NULL; static MonoMethod *cleanup_native, *cleanup_managed; static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed; MonoMethod *get_instance = NULL; MonoMethodBuilder *mb = m->mb; char *exception_msg = NULL; guint32 loc1; int pos2; if (!ICustomMarshaler) { ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler"); if (!ICustomMarshaler) { exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler"); goto handle_exception; } cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1); g_assert (cleanup_native); cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1); g_assert (cleanup_managed); marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1); g_assert (marshal_managed_to_native); marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1); g_assert (marshal_native_to_managed); } mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image); g_assert (mtype != NULL); mklass = mono_class_from_mono_type (mtype); g_assert (mklass != NULL); if (!mono_class_is_assignable_from (ICustomMarshaler, mklass)) exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name); get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC); if (get_instance) { MonoMethodSignature *get_sig = mono_method_signature (get_instance); if ((get_sig->ret->type != MONO_TYPE_CLASS) || (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) || (get_sig->params [0]->type != MONO_TYPE_STRING)) get_instance = NULL; } if (!get_instance) exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement a static GetInstance method that takes a single string parameter and returns an ICustomMarshaler.", mklass->name); handle_exception: /* Throw exception and emit compensation code if neccesary */ if (exception_msg) { switch (action) { case MARSHAL_ACTION_CONV_IN: case MARSHAL_ACTION_CONV_RESULT: case MARSHAL_ACTION_MANAGED_CONV_RESULT: if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT)) mono_mb_emit_byte (mb, CEE_POP); mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg); g_free (exception_msg); break; case MARSHAL_ACTION_PUSH: mono_mb_emit_byte (mb, CEE_LDNULL); break; default: break; } return 0; } /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */ /* FIXME: MS.NET throws an exception if GetInstance returns null */ switch (action) { case MARSHAL_ACTION_CONV_IN: switch (t->type) { case MONO_TYPE_CLASS: case MONO_TYPE_OBJECT: case MONO_TYPE_STRING: case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: case MONO_TYPE_VALUETYPE: break; default: g_warning ("custom marshalling of type %x is currently not supported", t->type); g_assert_not_reached (); break; } conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_stloc (mb, conv_arg); if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) break; /* Minic MS.NET behavior */ if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN)) break; /* Check for null */ mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_I); pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie)); mono_mb_emit_op (mb, CEE_CALL, get_instance); mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_REF); if (t->type == MONO_TYPE_VALUETYPE) { /* * Since we can't determine the type of the argument, we * will assume the unmanaged function takes a pointer. */ *conv_arg_type = &mono_defaults.int_class->byval_arg; mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t)); } mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native); mono_mb_emit_stloc (mb, conv_arg); mono_mb_patch_branch (mb, pos2); break; case MARSHAL_ACTION_CONV_OUT: /* Check for null */ mono_mb_emit_ldloc (mb, conv_arg); pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE); if (t->byref) { mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie)); mono_mb_emit_op (mb, CEE_CALL, get_instance); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed); mono_mb_emit_byte (mb, CEE_STIND_REF); } else if (t->attrs & PARAM_ATTRIBUTE_OUT) { mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie)); mono_mb_emit_op (mb, CEE_CALL, get_instance); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed); /* We have nowhere to store the result */ mono_mb_emit_byte (mb, CEE_POP); } mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie)); mono_mb_emit_op (mb, CEE_CALL, get_instance); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native); mono_mb_patch_branch (mb, pos2); break; case MARSHAL_ACTION_PUSH: if (t->byref) mono_mb_emit_ldloc_addr (mb, conv_arg); else mono_mb_emit_ldloc (mb, conv_arg); break; case MARSHAL_ACTION_CONV_RESULT: loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_stloc (mb, 3); mono_mb_emit_ldloc (mb, 3); mono_mb_emit_stloc (mb, loc1); /* Check for null */ mono_mb_emit_ldloc (mb, 3); pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie)); mono_mb_emit_op (mb, CEE_CALL, get_instance); mono_mb_emit_byte (mb, CEE_DUP); mono_mb_emit_ldloc (mb, 3); mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed); mono_mb_emit_stloc (mb, 3); mono_mb_emit_ldloc (mb, loc1); mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native); mono_mb_patch_branch (mb, pos2); break; case MARSHAL_ACTION_MANAGED_CONV_IN: conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_stloc (mb, conv_arg); if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) break; /* Check for null */ mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_I); pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie)); mono_mb_emit_op (mb, CEE_CALL, get_instance); mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed); mono_mb_emit_stloc (mb, conv_arg); mono_mb_patch_branch (mb, pos2); break; case MARSHAL_ACTION_MANAGED_CONV_RESULT: g_assert (!t->byref); loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); mono_mb_emit_stloc (mb, 3); mono_mb_emit_ldloc (mb, 3); mono_mb_emit_stloc (mb, loc1); /* Check for null */ mono_mb_emit_ldloc (mb, 3); pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie)); mono_mb_emit_op (mb, CEE_CALL, get_instance); mono_mb_emit_byte (mb, CEE_DUP); mono_mb_emit_ldloc (mb, 3); mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native); mono_mb_emit_stloc (mb, 3); mono_mb_emit_ldloc (mb, loc1); mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed); mono_mb_patch_branch (mb, pos2); break; case MARSHAL_ACTION_MANAGED_CONV_OUT: /* Check for null */ mono_mb_emit_ldloc (mb, conv_arg); pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE); if (t->byref) { mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie)); mono_mb_emit_op (mb, CEE_CALL, get_instance); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native); mono_mb_emit_byte (mb, CEE_STIND_I); } /* Call CleanUpManagedData */ mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie)); mono_mb_emit_op (mb, CEE_CALL, get_instance); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed); mono_mb_patch_branch (mb, pos2); break; default: g_assert_not_reached (); } return conv_arg; #endif } static int emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { #ifndef DISABLE_JIT MonoMethodBuilder *mb = m->mb; switch (action) { case MARSHAL_ACTION_CONV_IN: { MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL); g_assert (t->type == MONO_TYPE_OBJECT); g_assert (!t->byref); conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_icon (mb, encoding); mono_mb_emit_icon (mb, t->attrs); mono_mb_emit_icall (mb, mono_marshal_asany); mono_mb_emit_stloc (mb, conv_arg); break; } case MARSHAL_ACTION_PUSH: mono_mb_emit_ldloc (mb, conv_arg); break; case MARSHAL_ACTION_CONV_OUT: { MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_icon (mb, encoding); mono_mb_emit_icon (mb, t->attrs); mono_mb_emit_icall (mb, mono_marshal_free_asany); break; } default: g_assert_not_reached (); } #endif return conv_arg; } static int emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { #ifndef DISABLE_JIT MonoMethodBuilder *mb = m->mb; MonoClass *klass, *date_time_class; int pos = 0, pos2; klass = mono_class_from_mono_type (t); date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime"); switch (action) { case MARSHAL_ACTION_CONV_IN: if (klass == date_time_class) { /* Convert it to an OLE DATE type */ static MonoMethod *to_oadate; if (!to_oadate) to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0); g_assert (to_oadate); conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg); if (t->byref) { mono_mb_emit_ldarg (mb, argnum); pos = mono_mb_emit_branch (mb, CEE_BRFALSE); } if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) { if (!t->byref) m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg; mono_mb_emit_ldarg_addr (mb, argnum); mono_mb_emit_managed_call (mb, to_oadate, NULL); mono_mb_emit_stloc (mb, conv_arg); } if (t->byref) mono_mb_patch_branch (mb, pos); break; } if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable || klass->enumtype) break; conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* store the address of the source into local variable 0 */ if (t->byref) mono_mb_emit_ldarg (mb, argnum); else mono_mb_emit_ldarg_addr (mb, argnum); mono_mb_emit_stloc (mb, 0); /* allocate space for the native struct and * store the address into local variable 1 (dest) */ mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL)); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_LOCALLOC); mono_mb_emit_stloc (mb, conv_arg); if (t->byref) { mono_mb_emit_ldloc (mb, 0); pos = mono_mb_emit_branch (mb, CEE_BRFALSE); } if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) { /* set dst_ptr */ mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_stloc (mb, 1); /* emit valuetype conversion code */ emit_struct_conv (mb, klass, FALSE); } if (t->byref) mono_mb_patch_branch (mb, pos); break; case MARSHAL_ACTION_PUSH: if (spec && spec->native == MONO_NATIVE_LPSTRUCT) { /* FIXME: */ g_assert (!t->byref); /* Have to change the signature since the vtype is passed byref */ m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg; if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable || klass->enumtype) mono_mb_emit_ldarg_addr (mb, argnum); else mono_mb_emit_ldloc (mb, conv_arg); break; } if (klass == date_time_class) { if (t->byref) mono_mb_emit_ldloc_addr (mb, conv_arg); else mono_mb_emit_ldloc (mb, conv_arg); break; } if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable || klass->enumtype) { mono_mb_emit_ldarg (mb, argnum); break; } mono_mb_emit_ldloc (mb, conv_arg); if (!t->byref) { mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass); } break; case MARSHAL_ACTION_CONV_OUT: if (klass == date_time_class) { /* Convert from an OLE DATE type */ static MonoMethod *from_oadate; if (!t->byref) break; if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) { if (!from_oadate) from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1); g_assert (from_oadate); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_managed_call (mb, from_oadate, NULL); mono_mb_emit_op (mb, CEE_STOBJ, date_time_class); } break; } if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable || klass->enumtype) break; if (t->byref) { /* dst = argument */ mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_stloc (mb, 1); mono_mb_emit_ldloc (mb, 1); pos = mono_mb_emit_branch (mb, CEE_BRFALSE); if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) { /* src = tmp_locals [i] */ mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_stloc (mb, 0); /* emit valuetype conversion code */ emit_struct_conv (mb, klass, TRUE); } } emit_struct_free (mb, klass, conv_arg); if (t->byref) mono_mb_patch_branch (mb, pos); break; case MARSHAL_ACTION_CONV_RESULT: if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable) { mono_mb_emit_stloc (mb, 3); break; } /* load pointer to returned value type */ mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_VTADDR); /* store the address of the source into local variable 0 */ mono_mb_emit_stloc (mb, 0); /* set dst_ptr */ mono_mb_emit_ldloc_addr (mb, 3); mono_mb_emit_stloc (mb, 1); /* emit valuetype conversion code */ emit_struct_conv (mb, klass, TRUE); break; case MARSHAL_ACTION_MANAGED_CONV_IN: if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable || klass->enumtype) { conv_arg = 0; break; } conv_arg = mono_mb_add_local (mb, &klass->byval_arg); if (t->attrs & PARAM_ATTRIBUTE_OUT) break; if (t->byref) mono_mb_emit_ldarg (mb, argnum); else mono_mb_emit_ldarg_addr (mb, argnum); mono_mb_emit_stloc (mb, 0); if (t->byref) { mono_mb_emit_ldloc (mb, 0); pos = mono_mb_emit_branch (mb, CEE_BRFALSE); } mono_mb_emit_ldloc_addr (mb, conv_arg); mono_mb_emit_stloc (mb, 1); /* emit valuetype conversion code */ emit_struct_conv (mb, klass, TRUE); if (t->byref) mono_mb_patch_branch (mb, pos); break; case MARSHAL_ACTION_MANAGED_CONV_OUT: if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable || klass->enumtype) { break; } if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT)) break; /* Check for null */ mono_mb_emit_ldarg (mb, argnum); pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE); /* Set src */ mono_mb_emit_ldloc_addr (mb, conv_arg); mono_mb_emit_stloc (mb, 0); /* Set dest */ mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_stloc (mb, 1); /* emit valuetype conversion code */ emit_struct_conv (mb, klass, FALSE); mono_mb_patch_branch (mb, pos2); break; case MARSHAL_ACTION_MANAGED_CONV_RESULT: if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable || klass->enumtype) { mono_mb_emit_stloc (mb, 3); m->retobj_var = 0; break; } /* load pointer to returned value type */ mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_VTADDR); /* store the address of the source into local variable 0 */ mono_mb_emit_stloc (mb, 0); /* allocate space for the native struct and * store the address into dst_ptr */ m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); m->retobj_class = klass; g_assert (m->retobj_var); mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL)); mono_mb_emit_byte (mb, CEE_CONV_I); mono_mb_emit_icall (mb, mono_marshal_alloc); mono_mb_emit_stloc (mb, 1); mono_mb_emit_ldloc (mb, 1); mono_mb_emit_stloc (mb, m->retobj_var); /* emit valuetype conversion code */ emit_struct_conv (mb, klass, FALSE); break; default: g_assert_not_reached (); } #endif return conv_arg; } static int emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { #ifdef DISABLE_JIT switch (action) { case MARSHAL_ACTION_CONV_IN: *conv_arg_type = &mono_defaults.int_class->byval_arg; break; case MARSHAL_ACTION_MANAGED_CONV_IN: *conv_arg_type = &mono_defaults.int_class->byval_arg; break; } #else MonoMethodBuilder *mb = m->mb; MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec); MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec); gboolean need_free; switch (action) { case MARSHAL_ACTION_CONV_IN: *conv_arg_type = &mono_defaults.int_class->byval_arg; conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); if (t->byref) { if (t->attrs & PARAM_ATTRIBUTE_OUT) break; mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_byte (mb, CEE_LDIND_I); } else { mono_mb_emit_ldarg (mb, argnum); } if (conv == -1) { char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding); mono_mb_emit_exception_marshal_directive (mb, msg); } else { mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_stloc (mb, conv_arg); } break; case MARSHAL_ACTION_CONV_OUT: conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free); if (conv == -1) { char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding); mono_mb_emit_exception_marshal_directive (mb, msg); break; } if (encoding == MONO_NATIVE_VBBYREFSTR) { static MonoMethod *m; if (!m) { m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0); g_assert (m); } if (!t->byref) { char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding); mono_mb_emit_exception_marshal_directive (mb, msg); break; } /* * Have to allocate a new string with the same length as the original, and * copy the contents of the buffer pointed to by CONV_ARG into it. */ g_assert (t->byref); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_managed_call (mb, m, NULL); mono_mb_emit_icall (mb, mono_string_new_len_wrapper); mono_mb_emit_byte (mb, CEE_STIND_REF); } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) { mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_byte (mb, CEE_STIND_REF); need_free = TRUE; } if (need_free) { mono_mb_emit_ldloc (mb, conv_arg); if (conv == MONO_MARSHAL_CONV_BSTR_STR) mono_mb_emit_icall (mb, mono_free_bstr); else mono_mb_emit_icall (mb, mono_marshal_free); } break; case MARSHAL_ACTION_PUSH: if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR) mono_mb_emit_ldloc_addr (mb, conv_arg); else mono_mb_emit_ldloc (mb, conv_arg); break; case MARSHAL_ACTION_CONV_RESULT: mono_mb_emit_stloc (mb, 0); conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free); if (conv == -1) { char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding); mono_mb_emit_exception_marshal_directive (mb, msg); break; } mono_mb_emit_ldloc (mb, 0); mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_stloc (mb, 3); /* free the string */ mono_mb_emit_ldloc (mb, 0); if (conv == MONO_MARSHAL_CONV_BSTR_STR) mono_mb_emit_icall (mb, mono_free_bstr); else mono_mb_emit_icall (mb, mono_marshal_free); break; case MARSHAL_ACTION_MANAGED_CONV_IN: conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); *conv_arg_type = &mono_defaults.int_class->byval_arg; if (t->byref) { if (t->attrs & PARAM_ATTRIBUTE_OUT) break; } conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free); if (conv == -1) { char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding); mono_mb_emit_exception_marshal_directive (mb, msg); break; } mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_stloc (mb, conv_arg); break; case MARSHAL_ACTION_MANAGED_CONV_OUT: if (t->byref) { if (conv_arg) { mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_byte (mb, CEE_STIND_I); } } break; case MARSHAL_ACTION_MANAGED_CONV_RESULT: if (conv_to_icall (conv) == mono_marshal_string_to_utf16) /* We need to make a copy so the caller is able to free it */ mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy); else mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_stloc (mb, 3); break; default: g_assert_not_reached (); } #endif return conv_arg; } static int emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { #ifdef DISABLE_JIT if (action == MARSHAL_ACTION_CONV_IN) *conv_arg_type = &mono_defaults.int_class->byval_arg; #else MonoMethodBuilder *mb = m->mb; switch (action){ case MARSHAL_ACTION_CONV_IN: { MonoType *intptr_type; int dar_release_slot, pos; intptr_type = &mono_defaults.int_class->byval_arg; conv_arg = mono_mb_add_local (mb, intptr_type); *conv_arg_type = intptr_type; if (!sh_dangerous_add_ref) init_safe_handle (); mono_mb_emit_ldarg (mb, argnum); pos = mono_mb_emit_branch (mb, CEE_BRTRUE); mono_mb_emit_exception (mb, "ArgumentNullException", NULL); mono_mb_patch_branch (mb, pos); if (t->byref){ /* * My tests in show that ref SafeHandles are not really * passed as ref objects. Instead a NULL is passed as the * value of the ref */ mono_mb_emit_icon (mb, 0); mono_mb_emit_stloc (mb, conv_arg); break; } /* Create local to hold the ref parameter to DangerousAddRef */ dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg); /* set release = false; */ mono_mb_emit_icon (mb, 0); mono_mb_emit_stloc (mb, dar_release_slot); /* safehandle.DangerousAddRef (ref release) */ mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc_addr (mb, dar_release_slot); mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL); /* Pull the handle field from SafeHandle */ mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, conv_arg); break; } case MARSHAL_ACTION_PUSH: if (t->byref) mono_mb_emit_ldloc_addr (mb, conv_arg); else mono_mb_emit_ldloc (mb, conv_arg); break; case MARSHAL_ACTION_CONV_OUT: { /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */ int dar_release_slot = conv_arg + 1; int label_next; if (!sh_dangerous_release) init_safe_handle (); if (t->byref){ MonoMethod *ctor; /* * My tests indicate that ref SafeHandles parameters are not actually * passed by ref, but instead a new Handle is created regardless of * whether a change happens in the unmanaged side. * * Also, the Handle is created before calling into unmanaged code, * but we do not support that mechanism (getting to the original * handle) and it makes no difference where we create this */ ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0); if (ctor == NULL){ mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required"); break; } /* refval = new SafeHandleDerived ()*/ mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_op (mb, CEE_NEWOBJ, ctor); mono_mb_emit_byte (mb, CEE_STIND_REF); /* refval.handle = returned_handle */ mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle)); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_byte (mb, CEE_STIND_I); } else { mono_mb_emit_ldloc (mb, dar_release_slot); label_next = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL); mono_mb_patch_branch (mb, label_next); } break; } case MARSHAL_ACTION_CONV_RESULT: { MonoMethod *ctor = NULL; int intptr_handle_slot; if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){ mono_mb_emit_byte (mb, CEE_POP); mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract")); break; } ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0); if (ctor == NULL){ mono_mb_emit_byte (mb, CEE_POP); mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required"); break; } /* Store the IntPtr results into a local */ intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_stloc (mb, intptr_handle_slot); /* Create return value */ mono_mb_emit_op (mb, CEE_NEWOBJ, ctor); mono_mb_emit_stloc (mb, 3); /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */ mono_mb_emit_ldloc (mb, 3); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle)); mono_mb_emit_ldloc (mb, intptr_handle_slot); mono_mb_emit_byte (mb, CEE_STIND_I); break; } case MARSHAL_ACTION_MANAGED_CONV_IN: fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n"); break; case MARSHAL_ACTION_MANAGED_CONV_OUT: fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n"); break; case MARSHAL_ACTION_MANAGED_CONV_RESULT: fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n"); break; default: printf ("Unhandled case for MarshalAction: %d\n", action); } #endif return conv_arg; } static int emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { #ifdef DISABLE_JIT if (action == MARSHAL_ACTION_CONV_IN) *conv_arg_type = &mono_defaults.int_class->byval_arg; #else MonoMethodBuilder *mb = m->mb; switch (action){ case MARSHAL_ACTION_CONV_IN: { MonoType *intptr_type; intptr_type = &mono_defaults.int_class->byval_arg; conv_arg = mono_mb_add_local (mb, intptr_type); *conv_arg_type = intptr_type; if (t->byref){ char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)"); mono_mb_emit_exception_marshal_directive (mb, msg); break; } mono_mb_emit_ldarg_addr (mb, argnum); mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, conv_arg); break; } case MARSHAL_ACTION_PUSH: mono_mb_emit_ldloc (mb, conv_arg); break; case MARSHAL_ACTION_CONV_OUT: { /* no resource release required */ break; } case MARSHAL_ACTION_CONV_RESULT: { char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)"); mono_mb_emit_exception_marshal_directive (mb, msg); break; } case MARSHAL_ACTION_MANAGED_CONV_IN: fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n"); break; case MARSHAL_ACTION_MANAGED_CONV_OUT: fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n"); break; case MARSHAL_ACTION_MANAGED_CONV_RESULT: fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n"); break; default: fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action); } #endif return conv_arg; } static int emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { #ifdef DISABLE_JIT if (action == MARSHAL_ACTION_CONV_IN) *conv_arg_type = &mono_defaults.int_class->byval_arg; #else MonoMethodBuilder *mb = m->mb; MonoClass *klass = mono_class_from_mono_type (t); int pos, pos2, loc; switch (action) { case MARSHAL_ACTION_CONV_IN: *conv_arg_type = &mono_defaults.int_class->byval_arg; conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); m->orig_conv_args [argnum] = 0; if (mono_class_from_mono_type (t) == mono_defaults.object_class) { char *msg = g_strdup_printf ("Marshalling of type object is not implemented"); mono_mb_emit_exception_marshal_directive (mb, msg); break; } if (klass->delegate) { if (t->byref) { if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) { char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented."); mono_mb_emit_exception_marshal_directive (mb, msg); } mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_stloc (mb, conv_arg); } else { mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN)); mono_mb_emit_stloc (mb, conv_arg); } } else if (klass == mono_defaults.stringbuilder_class) { MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec); MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec); #if 0 if (t->byref) { if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) { char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented."); mono_mb_emit_exception_marshal_directive (mb, msg); } break; } #endif if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT)) break; if (conv == -1) { char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding); mono_mb_emit_exception_marshal_directive (mb, msg); break; } mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_stloc (mb, conv_arg); } else if (klass->blittable) { mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_stloc (mb, conv_arg); mono_mb_emit_ldarg (mb, argnum); pos = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldflda (mb, sizeof (MonoObject)); mono_mb_emit_stloc (mb, conv_arg); mono_mb_patch_branch (mb, pos); break; } else { mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_stloc (mb, conv_arg); if (t->byref) { /* we dont need any conversions for out parameters */ if (t->attrs & PARAM_ATTRIBUTE_OUT) break; mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_byte (mb, CEE_LDIND_I); } else { mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_OBJADDR); } /* store the address of the source into local variable 0 */ mono_mb_emit_stloc (mb, 0); mono_mb_emit_ldloc (mb, 0); pos = mono_mb_emit_branch (mb, CEE_BRFALSE); /* allocate space for the native struct and store the address */ mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL)); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_LOCALLOC); mono_mb_emit_stloc (mb, conv_arg); if (t->byref) { /* Need to store the original buffer so we can free it later */ m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]); } /* set the src_ptr */ mono_mb_emit_ldloc (mb, 0); mono_mb_emit_ldflda (mb, sizeof (MonoObject)); mono_mb_emit_stloc (mb, 0); /* set dst_ptr */ mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_stloc (mb, 1); /* emit valuetype conversion code */ emit_struct_conv (mb, klass, FALSE); mono_mb_patch_branch (mb, pos); } break; case MARSHAL_ACTION_CONV_OUT: if (klass == mono_defaults.stringbuilder_class) { gboolean need_free; MonoMarshalNative encoding; MonoMarshalConv conv; encoding = mono_marshal_get_string_encoding (m->piinfo, spec); conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free); g_assert (encoding != -1); if (t->byref) { //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT)); need_free = TRUE; mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc (mb, conv_arg); switch (encoding) { case MONO_NATIVE_LPWSTR: mono_mb_emit_icall (mb, mono_string_utf16_to_builder2); break; case MONO_NATIVE_LPSTR: mono_mb_emit_icall (mb, mono_string_utf8_to_builder2); break; default: g_assert_not_reached (); } mono_mb_emit_byte (mb, CEE_STIND_REF); } else { mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_icall (mb, conv_to_icall (conv)); } if (need_free) { mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_icall (mb, mono_marshal_free); } break; } if (klass->delegate) { if (t->byref) { mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL)); mono_mb_emit_byte (mb, CEE_STIND_REF); } break; } if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) { /* allocate a new object */ mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass); mono_mb_emit_byte (mb, CEE_STIND_REF); } /* dst = *argument */ mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, 1); mono_mb_emit_ldloc (mb, 1); pos = mono_mb_emit_branch (mb, CEE_BRFALSE); if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) { mono_mb_emit_ldloc (mb, 1); mono_mb_emit_icon (mb, sizeof (MonoObject)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_stloc (mb, 1); /* src = tmp_locals [i] */ mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_stloc (mb, 0); /* emit valuetype conversion code */ emit_struct_conv (mb, klass, TRUE); /* Free the structure returned by the native code */ emit_struct_free (mb, klass, conv_arg); if (m->orig_conv_args [argnum]) { /* * If the native function changed the pointer, then free * the original structure plus the new pointer. */ mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]); mono_mb_emit_ldloc (mb, conv_arg); pos2 = mono_mb_emit_branch (mb, CEE_BEQ); if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) { g_assert (m->orig_conv_args [argnum]); emit_struct_free (mb, klass, m->orig_conv_args [argnum]); } mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_icall (mb, mono_marshal_free); mono_mb_patch_branch (mb, pos2); } } else /* Free the original structure passed to native code */ emit_struct_free (mb, klass, conv_arg); mono_mb_patch_branch (mb, pos); break; case MARSHAL_ACTION_PUSH: if (t->byref) mono_mb_emit_ldloc_addr (mb, conv_arg); else mono_mb_emit_ldloc (mb, conv_arg); break; case MARSHAL_ACTION_CONV_RESULT: if (klass->delegate) { g_assert (!t->byref); mono_mb_emit_stloc (mb, 0); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL)); mono_mb_emit_stloc (mb, 3); } else { /* set src */ mono_mb_emit_stloc (mb, 0); /* Make a copy since emit_conv modifies local 0 */ loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_stloc (mb, loc); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_stloc (mb, 3); mono_mb_emit_ldloc (mb, 0); pos = mono_mb_emit_branch (mb, CEE_BRFALSE); /* allocate result object */ mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass); mono_mb_emit_stloc (mb, 3); /* set dst */ mono_mb_emit_ldloc (mb, 3); mono_mb_emit_ldflda (mb, sizeof (MonoObject)); mono_mb_emit_stloc (mb, 1); /* emit conversion code */ emit_struct_conv (mb, klass, TRUE); emit_struct_free (mb, klass, loc); /* Free the pointer allocated by unmanaged code */ mono_mb_emit_ldloc (mb, loc); mono_mb_emit_icall (mb, mono_marshal_free); mono_mb_patch_branch (mb, pos); } break; case MARSHAL_ACTION_MANAGED_CONV_IN: conv_arg = mono_mb_add_local (mb, &klass->byval_arg); if (klass->delegate) { g_assert (!t->byref); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL)); mono_mb_emit_stloc (mb, conv_arg); break; } if (klass == mono_defaults.stringbuilder_class) { MonoMarshalNative encoding; encoding = mono_marshal_get_string_encoding (m->piinfo, spec); // FIXME: g_assert (encoding == MONO_NATIVE_LPSTR); g_assert (!t->byref); g_assert (encoding != -1); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_icall (mb, mono_string_utf8_to_builder2); mono_mb_emit_stloc (mb, conv_arg); break; } /* The class can not have an automatic layout */ if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) { mono_mb_emit_auto_layout_exception (mb, klass); break; } if (t->attrs & PARAM_ATTRIBUTE_OUT) { mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_stloc (mb, conv_arg); break; } /* Set src */ mono_mb_emit_ldarg (mb, argnum); if (t->byref) { int pos2; /* Check for NULL and raise an exception */ pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE); mono_mb_emit_exception (mb, "ArgumentNullException", NULL); mono_mb_patch_branch (mb, pos2); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_byte (mb, CEE_LDIND_I); } mono_mb_emit_stloc (mb, 0); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_stloc (mb, conv_arg); mono_mb_emit_ldloc (mb, 0); pos = mono_mb_emit_branch (mb, CEE_BRFALSE); /* Create and set dst */ mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass); mono_mb_emit_stloc (mb, conv_arg); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_ldflda (mb, sizeof (MonoObject)); mono_mb_emit_stloc (mb, 1); /* emit valuetype conversion code */ emit_struct_conv (mb, klass, TRUE); mono_mb_patch_branch (mb, pos); break; case MARSHAL_ACTION_MANAGED_CONV_OUT: if (t->byref) { /* Check for null */ mono_mb_emit_ldloc (mb, conv_arg); pos = mono_mb_emit_branch (mb, CEE_BRTRUE); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_byte (mb, CEE_STIND_REF); pos2 = mono_mb_emit_branch (mb, CEE_BR); mono_mb_patch_branch (mb, pos); /* Set src */ mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_ldflda (mb, sizeof (MonoObject)); mono_mb_emit_stloc (mb, 0); /* Allocate and set dest */ mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL)); mono_mb_emit_byte (mb, CEE_CONV_I); mono_mb_emit_icall (mb, mono_marshal_alloc); mono_mb_emit_stloc (mb, 1); /* Update argument pointer */ mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc (mb, 1); mono_mb_emit_byte (mb, CEE_STIND_I); /* emit valuetype conversion code */ emit_struct_conv (mb, klass, FALSE); mono_mb_patch_branch (mb, pos2); } else { /* byval [Out] marshalling */ /* FIXME: Handle null */ /* Set src */ mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_ldflda (mb, sizeof (MonoObject)); mono_mb_emit_stloc (mb, 0); /* Set dest */ mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_stloc (mb, 1); /* emit valuetype conversion code */ emit_struct_conv (mb, klass, FALSE); } break; case MARSHAL_ACTION_MANAGED_CONV_RESULT: if (klass->delegate) { mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN)); mono_mb_emit_stloc (mb, 3); break; } /* The class can not have an automatic layout */ if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) { mono_mb_emit_auto_layout_exception (mb, klass); break; } mono_mb_emit_stloc (mb, 0); /* Check for null */ mono_mb_emit_ldloc (mb, 0); pos = mono_mb_emit_branch (mb, CEE_BRTRUE); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_stloc (mb, 3); pos2 = mono_mb_emit_branch (mb, CEE_BR); mono_mb_patch_branch (mb, pos); /* Set src */ mono_mb_emit_ldloc (mb, 0); mono_mb_emit_ldflda (mb, sizeof (MonoObject)); mono_mb_emit_stloc (mb, 0); /* Allocate and set dest */ mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL)); mono_mb_emit_byte (mb, CEE_CONV_I); mono_mb_emit_icall (mb, mono_marshal_alloc); mono_mb_emit_byte (mb, CEE_DUP); mono_mb_emit_stloc (mb, 1); mono_mb_emit_stloc (mb, 3); emit_struct_conv (mb, klass, FALSE); mono_mb_patch_branch (mb, pos2); break; default: g_assert_not_reached (); } #endif return conv_arg; } #ifndef DISABLE_JIT #ifndef DISABLE_COM static int emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { MonoMethodBuilder *mb = m->mb; static MonoMethod *get_object_for_native_variant = NULL; static MonoMethod *get_native_variant_for_object = NULL; if (!get_object_for_native_variant) get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1); g_assert (get_object_for_native_variant); if (!get_native_variant_for_object) get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2); g_assert (get_native_variant_for_object); switch (action) { case MARSHAL_ACTION_CONV_IN: { conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg); if (t->byref) *conv_arg_type = &mono_class_get_variant_class ()->this_arg; else *conv_arg_type = &mono_class_get_variant_class ()->byval_arg; if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT) break; mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte(mb, CEE_LDIND_REF); mono_mb_emit_ldloc_addr (mb, conv_arg); mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL); break; } case MARSHAL_ACTION_CONV_OUT: { static MonoMethod *variant_clear = NULL; if (!variant_clear) variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0); g_assert (variant_clear); if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) { mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc_addr (mb, conv_arg); mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL); mono_mb_emit_byte (mb, CEE_STIND_REF); } mono_mb_emit_ldloc_addr (mb, conv_arg); mono_mb_emit_managed_call (mb, variant_clear, NULL); break; } case MARSHAL_ACTION_PUSH: if (t->byref) mono_mb_emit_ldloc_addr (mb, conv_arg); else mono_mb_emit_ldloc (mb, conv_arg); break; case MARSHAL_ACTION_CONV_RESULT: { char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type."); mono_mb_emit_exception_marshal_directive (mb, msg); break; } case MARSHAL_ACTION_MANAGED_CONV_IN: { conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); if (t->byref) *conv_arg_type = &mono_class_get_variant_class ()->this_arg; else *conv_arg_type = &mono_class_get_variant_class ()->byval_arg; if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT) break; if (t->byref) mono_mb_emit_ldarg (mb, argnum); else mono_mb_emit_ldarg_addr (mb, argnum); mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL); mono_mb_emit_stloc (mb, conv_arg); break; } case MARSHAL_ACTION_MANAGED_CONV_OUT: { if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) { mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL); } break; } case MARSHAL_ACTION_MANAGED_CONV_RESULT: { char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type."); mono_mb_emit_exception_marshal_directive (mb, msg); break; } default: g_assert_not_reached (); } return conv_arg; } #endif /* DISABLE_COM */ #endif /* DISABLE_JIT */ static gboolean mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo) { switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) { case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI: return FALSE; case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE: return TRUE; case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO: default: #ifdef TARGET_WIN32 return TRUE; #else return FALSE; #endif } } static int emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { #ifdef DISABLE_JIT switch (action) { case MARSHAL_ACTION_CONV_IN: *conv_arg_type = &mono_defaults.object_class->byval_arg; break; case MARSHAL_ACTION_MANAGED_CONV_IN: *conv_arg_type = &mono_defaults.int_class->byval_arg; break; } #else MonoMethodBuilder *mb = m->mb; MonoClass *klass = mono_class_from_mono_type (t); gboolean need_convert, need_free; MonoMarshalNative encoding; encoding = mono_marshal_get_string_encoding (m->piinfo, spec); switch (action) { case MARSHAL_ACTION_CONV_IN: *conv_arg_type = &mono_defaults.object_class->byval_arg; conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); if (klass->element_class->blittable) { mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY)); mono_mb_emit_stloc (mb, conv_arg); } else { MonoClass *eklass; guint32 label1, label2, label3; int index_var, src_var, dest_ptr, esize; MonoMarshalConv conv; gboolean is_string = FALSE; dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); eklass = klass->element_class; if (eklass == mono_defaults.string_class) { is_string = TRUE; conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec); } else if (eklass == mono_defaults.stringbuilder_class) { is_string = TRUE; conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec); } else conv = -1; if (is_string && conv == -1) { char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding); mono_mb_emit_exception_marshal_directive (mb, msg); break; } src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, src_var); /* Check null */ mono_mb_emit_ldloc (mb, src_var); mono_mb_emit_stloc (mb, conv_arg); mono_mb_emit_ldloc (mb, src_var); label1 = mono_mb_emit_branch (mb, CEE_BRFALSE); if (is_string) esize = sizeof (gpointer); else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/ esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1; else esize = mono_class_native_size (eklass, NULL); /* allocate space for the native struct and store the address */ mono_mb_emit_icon (mb, esize); mono_mb_emit_ldloc (mb, src_var); mono_mb_emit_byte (mb, CEE_LDLEN); if (eklass == mono_defaults.string_class) { /* Make the array bigger for the terminating null */ mono_mb_emit_byte (mb, CEE_LDC_I4_1); mono_mb_emit_byte (mb, CEE_ADD); } mono_mb_emit_byte (mb, CEE_MUL); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_LOCALLOC); mono_mb_emit_stloc (mb, conv_arg); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_stloc (mb, dest_ptr); /* Emit marshalling loop */ index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_stloc (mb, index_var); label2 = mono_mb_get_label (mb); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_ldloc (mb, src_var); mono_mb_emit_byte (mb, CEE_LDLEN); label3 = mono_mb_emit_branch (mb, CEE_BGE); /* Emit marshalling code */ if (is_string) { mono_mb_emit_ldloc (mb, dest_ptr); mono_mb_emit_ldloc (mb, src_var); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_byte (mb, CEE_LDELEM_REF); mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_byte (mb, CEE_STIND_I); } else { /* set the src_ptr */ mono_mb_emit_ldloc (mb, src_var); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_op (mb, CEE_LDELEMA, eklass); mono_mb_emit_stloc (mb, 0); /* set dst_ptr */ mono_mb_emit_ldloc (mb, dest_ptr); mono_mb_emit_stloc (mb, 1); /* emit valuetype conversion code */ emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1); } mono_mb_emit_add_to_local (mb, index_var, 1); mono_mb_emit_add_to_local (mb, dest_ptr, esize); mono_mb_emit_branch_label (mb, CEE_BR, label2); mono_mb_patch_branch (mb, label3); if (eklass == mono_defaults.string_class) { /* Null terminate */ mono_mb_emit_ldloc (mb, dest_ptr); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_byte (mb, CEE_STIND_REF); } mono_mb_patch_branch (mb, label1); } break; case MARSHAL_ACTION_CONV_OUT: /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */ need_convert = ((klass->element_class == mono_defaults.char_class) && (encoding == MONO_NATIVE_LPWSTR)) || (klass->element_class == mono_defaults.stringbuilder_class) || (t->attrs & PARAM_ATTRIBUTE_OUT); need_free = mono_marshal_need_free (&klass->element_class->byval_arg, m->piinfo, spec); if (need_convert || need_free) { /* FIXME: Optimize blittable case */ MonoClass *eklass; guint32 label1, label2, label3; int index_var, src_ptr, loc, esize; eklass = klass->element_class; if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class)) esize = sizeof (gpointer); else if (eklass == mono_defaults.char_class) esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1; else esize = mono_class_native_size (eklass, NULL); src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* Check null */ mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_I); label1 = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_stloc (mb, src_ptr); /* Emit marshalling loop */ index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_stloc (mb, index_var); label2 = mono_mb_get_label (mb); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_byte (mb, CEE_LDLEN); label3 = mono_mb_emit_branch (mb, CEE_BGE); /* Emit marshalling code */ if (eklass == mono_defaults.stringbuilder_class) { gboolean need_free2; MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2); g_assert (conv != -1); /* dest */ mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_byte (mb, CEE_LDELEM_REF); /* src */ mono_mb_emit_ldloc (mb, src_ptr); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icall (mb, conv_to_icall (conv)); if (need_free) { /* src */ mono_mb_emit_ldloc (mb, src_ptr); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icall (mb, mono_marshal_free); } } else if (eklass == mono_defaults.string_class) { if (need_free) { /* src */ mono_mb_emit_ldloc (mb, src_ptr); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icall (mb, mono_marshal_free); } } else { if (need_convert) { /* set the src_ptr */ mono_mb_emit_ldloc (mb, src_ptr); mono_mb_emit_stloc (mb, 0); /* set dst_ptr */ mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_REF); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_op (mb, CEE_LDELEMA, eklass); mono_mb_emit_stloc (mb, 1); /* emit valuetype conversion code */ emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1); } if (need_free) { mono_mb_emit_ldloc (mb, src_ptr); mono_mb_emit_stloc (mb, loc); mono_mb_emit_ldloc (mb, loc); emit_struct_free (mb, eklass, loc); } } mono_mb_emit_add_to_local (mb, index_var, 1); mono_mb_emit_add_to_local (mb, src_ptr, esize); mono_mb_emit_branch_label (mb, CEE_BR, label2); mono_mb_patch_branch (mb, label1); mono_mb_patch_branch (mb, label3); } if (klass->element_class->blittable) { /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */ mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY)); } break; case MARSHAL_ACTION_PUSH: if (t->byref) mono_mb_emit_ldloc_addr (mb, conv_arg); else mono_mb_emit_ldloc (mb, conv_arg); break; case MARSHAL_ACTION_CONV_RESULT: /* fixme: we need conversions here */ mono_mb_emit_stloc (mb, 3); break; case MARSHAL_ACTION_MANAGED_CONV_IN: { MonoClass *eklass; guint32 label1, label2, label3; int index_var, src_ptr, loc, esize, param_num, num_elem; MonoMarshalConv conv; gboolean is_string = FALSE; conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); *conv_arg_type = &mono_defaults.int_class->byval_arg; if (t->byref) { char *msg = g_strdup ("Byref array marshalling to managed code is not implemented."); mono_mb_emit_exception_marshal_directive (mb, msg); return conv_arg; } if (!spec) { char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code."); mono_mb_emit_exception_marshal_directive (mb, msg); return conv_arg; } if (spec->native != MONO_NATIVE_LPARRAY) { char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented."); mono_mb_emit_exception_marshal_directive (mb, msg); return conv_arg; } /* FIXME: t is from the method which is wrapped, not the delegate type */ /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */ param_num = spec->data.array_data.param_num; num_elem = spec->data.array_data.num_elem; if (spec->data.array_data.elem_mult == 0) /* param_num is not specified */ param_num = -1; if (param_num == -1) { if (num_elem <= 0) { char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code."); mono_mb_emit_exception_marshal_directive (mb, msg); return conv_arg; } } /* FIXME: Optimize blittable case */ eklass = klass->element_class; if (eklass == mono_defaults.string_class) { is_string = TRUE; conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free); } else if (eklass == mono_defaults.stringbuilder_class) { is_string = TRUE; conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free); } else conv = -1; mono_marshal_load_type_info (eklass); if (is_string) esize = sizeof (gpointer); else esize = mono_class_native_size (eklass, NULL); src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_stloc (mb, conv_arg); /* Check param index */ if (param_num != -1) { if (param_num >= m->sig->param_count) { char *msg = g_strdup ("Array size control parameter index is out of range."); mono_mb_emit_exception_marshal_directive (mb, msg); return conv_arg; } switch (m->sig->params [param_num]->type) { case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_I8: case MONO_TYPE_U8: break; default: { char *msg = g_strdup ("Array size control parameter must be an integral type."); mono_mb_emit_exception_marshal_directive (mb, msg); return conv_arg; } } } /* Check null */ mono_mb_emit_ldarg (mb, argnum); label1 = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_stloc (mb, src_ptr); /* Create managed array */ /* * The LPArray marshalling spec says that sometimes param_num starts * from 1, sometimes it starts from 0. But MS seems to allways start * from 0. */ if (param_num == -1) { mono_mb_emit_icon (mb, num_elem); } else { mono_mb_emit_ldarg (mb, param_num); if (num_elem > 0) { mono_mb_emit_icon (mb, num_elem); mono_mb_emit_byte (mb, CEE_ADD); } mono_mb_emit_byte (mb, CEE_CONV_OVF_I); } mono_mb_emit_op (mb, CEE_NEWARR, eklass); mono_mb_emit_stloc (mb, conv_arg); if (eklass->blittable) { mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_byte (mb, CEE_CONV_I); mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_byte (mb, CEE_LDLEN); mono_mb_emit_icon (mb, esize); mono_mb_emit_byte (mb, CEE_MUL); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_CPBLK); break; } /* Emit marshalling loop */ index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_stloc (mb, index_var); label2 = mono_mb_get_label (mb); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_byte (mb, CEE_LDLEN); label3 = mono_mb_emit_branch (mb, CEE_BGE); /* Emit marshalling code */ if (is_string) { g_assert (conv != -1); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_ldloc (mb, src_ptr); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_byte (mb, CEE_STELEM_REF); } else { char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented."); mono_mb_emit_exception_marshal_directive (mb, msg); return conv_arg; } mono_mb_emit_add_to_local (mb, index_var, 1); mono_mb_emit_add_to_local (mb, src_ptr, esize); mono_mb_emit_branch_label (mb, CEE_BR, label2); mono_mb_patch_branch (mb, label1); mono_mb_patch_branch (mb, label3); break; } case MARSHAL_ACTION_MANAGED_CONV_OUT: { MonoClass *eklass; guint32 label1, label2, label3; int index_var, dest_ptr, loc, esize, param_num, num_elem; MonoMarshalConv conv; gboolean is_string = FALSE; if (!spec) /* Already handled in CONV_IN */ break; /* These are already checked in CONV_IN */ g_assert (!t->byref); g_assert (spec->native == MONO_NATIVE_LPARRAY); g_assert (t->attrs & PARAM_ATTRIBUTE_OUT); param_num = spec->data.array_data.param_num; num_elem = spec->data.array_data.num_elem; if (spec->data.array_data.elem_mult == 0) /* param_num is not specified */ param_num = -1; if (param_num == -1) { if (num_elem <= 0) { g_assert_not_reached (); } } /* FIXME: Optimize blittable case */ eklass = klass->element_class; if (eklass == mono_defaults.string_class) { is_string = TRUE; conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec); } else if (eklass == mono_defaults.stringbuilder_class) { is_string = TRUE; conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec); } else conv = -1; mono_marshal_load_type_info (eklass); if (is_string) esize = sizeof (gpointer); else esize = mono_class_native_size (eklass, NULL); dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* Check null */ mono_mb_emit_ldloc (mb, conv_arg); label1 = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_stloc (mb, dest_ptr); if (eklass->blittable) { /* dest */ mono_mb_emit_ldarg (mb, argnum); /* src */ mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_byte (mb, CEE_CONV_I); mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector)); mono_mb_emit_byte (mb, CEE_ADD); /* length */ mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_byte (mb, CEE_LDLEN); mono_mb_emit_icon (mb, esize); mono_mb_emit_byte (mb, CEE_MUL); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_CPBLK); break; } /* Emit marshalling loop */ index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_stloc (mb, index_var); label2 = mono_mb_get_label (mb); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_byte (mb, CEE_LDLEN); label3 = mono_mb_emit_branch (mb, CEE_BGE); /* Emit marshalling code */ if (is_string) { g_assert (conv != -1); /* dest */ mono_mb_emit_ldloc (mb, dest_ptr); /* src */ mono_mb_emit_ldloc (mb, conv_arg); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_byte (mb, CEE_LDELEM_REF); mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_byte (mb, CEE_STIND_I); } else { char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented."); mono_mb_emit_exception_marshal_directive (mb, msg); return conv_arg; } mono_mb_emit_add_to_local (mb, index_var, 1); mono_mb_emit_add_to_local (mb, dest_ptr, esize); mono_mb_emit_branch_label (mb, CEE_BR, label2); mono_mb_patch_branch (mb, label1); mono_mb_patch_branch (mb, label3); break; } case MARSHAL_ACTION_MANAGED_CONV_RESULT: { MonoClass *eklass; guint32 label1, label2, label3; int index_var, src, dest, esize; MonoMarshalConv conv = -1; gboolean is_string = FALSE; g_assert (!t->byref); eklass = klass->element_class; mono_marshal_load_type_info (eklass); if (eklass == mono_defaults.string_class) { is_string = TRUE; conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec); } else { g_assert_not_reached (); } if (is_string) esize = sizeof (gpointer); else if (eklass == mono_defaults.char_class) esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1; else esize = mono_class_native_size (eklass, NULL); src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_stloc (mb, src); mono_mb_emit_ldloc (mb, src); mono_mb_emit_stloc (mb, 3); /* Check for null */ mono_mb_emit_ldloc (mb, src); label1 = mono_mb_emit_branch (mb, CEE_BRFALSE); /* Allocate native array */ mono_mb_emit_icon (mb, esize); mono_mb_emit_ldloc (mb, src); mono_mb_emit_byte (mb, CEE_LDLEN); if (eklass == mono_defaults.string_class) { /* Make the array bigger for the terminating null */ mono_mb_emit_byte (mb, CEE_LDC_I4_1); mono_mb_emit_byte (mb, CEE_ADD); } mono_mb_emit_byte (mb, CEE_MUL); mono_mb_emit_icall (mb, mono_marshal_alloc); mono_mb_emit_stloc (mb, dest); mono_mb_emit_ldloc (mb, dest); mono_mb_emit_stloc (mb, 3); /* Emit marshalling loop */ index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_emit_stloc (mb, index_var); label2 = mono_mb_get_label (mb); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_ldloc (mb, src); mono_mb_emit_byte (mb, CEE_LDLEN); label3 = mono_mb_emit_branch (mb, CEE_BGE); /* Emit marshalling code */ if (is_string) { g_assert (conv != -1); /* dest */ mono_mb_emit_ldloc (mb, dest); /* src */ mono_mb_emit_ldloc (mb, src); mono_mb_emit_ldloc (mb, index_var); mono_mb_emit_byte (mb, CEE_LDELEM_REF); mono_mb_emit_icall (mb, conv_to_icall (conv)); mono_mb_emit_byte (mb, CEE_STIND_I); } else { char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented."); mono_mb_emit_exception_marshal_directive (mb, msg); return conv_arg; } mono_mb_emit_add_to_local (mb, index_var, 1); mono_mb_emit_add_to_local (mb, dest, esize); mono_mb_emit_branch_label (mb, CEE_BR, label2); mono_mb_patch_branch (mb, label3); mono_mb_patch_branch (mb, label1); break; } default: g_assert_not_reached (); } #endif return conv_arg; } static MonoType* marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/) { if (spec == NULL) { return &mono_defaults.int32_class->byval_arg; } else { switch (spec->native) { case MONO_NATIVE_I1: case MONO_NATIVE_U1: return &mono_defaults.byte_class->byval_arg; case MONO_NATIVE_VARIANTBOOL: if (ldc_op) *ldc_op = CEE_LDC_I4_M1; return &mono_defaults.int16_class->byval_arg; case MONO_NATIVE_BOOLEAN: return &mono_defaults.int32_class->byval_arg; default: g_warning ("marshalling bool as native type %x is currently not supported", spec->native); return &mono_defaults.int32_class->byval_arg; } } } static MonoClass* marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/) { MonoClass* conv_arg_class = mono_defaults.int32_class; if (spec) { switch (spec->native) { case MONO_NATIVE_I1: case MONO_NATIVE_U1: conv_arg_class = mono_defaults.byte_class; if (ldop) *ldop = CEE_LDIND_I1; break; case MONO_NATIVE_VARIANTBOOL: conv_arg_class = mono_defaults.int16_class; if (ldop) *ldop = CEE_LDIND_I2; break; case MONO_NATIVE_BOOLEAN: break; default: g_warning ("marshalling bool as native type %x is currently not supported", spec->native); } } return conv_arg_class; } static int emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { #ifdef DISABLE_JIT switch (action) { case MARSHAL_ACTION_CONV_IN: if (t->byref) *conv_arg_type = &mono_defaults.int_class->byval_arg; else *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL); break; case MARSHAL_ACTION_MANAGED_CONV_IN: { MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL); if (t->byref) *conv_arg_type = &conv_arg_class->this_arg; else *conv_arg_type = &conv_arg_class->byval_arg; break; } } #else MonoMethodBuilder *mb = m->mb; switch (action) { case MARSHAL_ACTION_CONV_IN: { MonoType *local_type; int label_false; guint8 ldc_op = CEE_LDC_I4_1; local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op); if (t->byref) *conv_arg_type = &mono_defaults.int_class->byval_arg; else *conv_arg_type = local_type; conv_arg = mono_mb_add_local (mb, local_type); mono_mb_emit_ldarg (mb, argnum); if (t->byref) mono_mb_emit_byte (mb, CEE_LDIND_I1); label_false = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_byte (mb, ldc_op); mono_mb_emit_stloc (mb, conv_arg); mono_mb_patch_branch (mb, label_false); break; } case MARSHAL_ACTION_CONV_OUT: { int label_false, label_end; if (!t->byref) break; mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc (mb, conv_arg); label_false = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_byte (mb, CEE_LDC_I4_1); label_end = mono_mb_emit_branch (mb, CEE_BR); mono_mb_patch_branch (mb, label_false); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_patch_branch (mb, label_end); mono_mb_emit_byte (mb, CEE_STIND_I1); break; } case MARSHAL_ACTION_PUSH: if (t->byref) mono_mb_emit_ldloc_addr (mb, conv_arg); else if (conv_arg) mono_mb_emit_ldloc (mb, conv_arg); else mono_mb_emit_ldarg (mb, argnum); break; case MARSHAL_ACTION_CONV_RESULT: /* maybe we need to make sure that it fits within 8 bits */ mono_mb_emit_stloc (mb, 3); break; case MARSHAL_ACTION_MANAGED_CONV_IN: { MonoClass* conv_arg_class = mono_defaults.int32_class; guint8 ldop = CEE_LDIND_I4; int label_null, label_false; conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop); conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg); if (t->byref) *conv_arg_type = &conv_arg_class->this_arg; else *conv_arg_type = &conv_arg_class->byval_arg; mono_mb_emit_ldarg (mb, argnum); /* Check null */ if (t->byref) { label_null = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_byte (mb, ldop); } else label_null = 0; label_false = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_byte (mb, CEE_LDC_I4_1); mono_mb_emit_stloc (mb, conv_arg); mono_mb_patch_branch (mb, label_false); if (t->byref) mono_mb_patch_branch (mb, label_null); break; } case MARSHAL_ACTION_MANAGED_CONV_OUT: { guint8 stop = CEE_STIND_I4; guint8 ldc_op = CEE_LDC_I4_1; int label_null,label_false, label_end;; if (!t->byref) break; if (spec) { switch (spec->native) { case MONO_NATIVE_I1: case MONO_NATIVE_U1: stop = CEE_STIND_I1; break; case MONO_NATIVE_VARIANTBOOL: stop = CEE_STIND_I2; ldc_op = CEE_LDC_I4_M1; break; default: break; } } /* Check null */ mono_mb_emit_ldarg (mb, argnum); label_null = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_ldarg (mb, argnum); mono_mb_emit_ldloc (mb, conv_arg); label_false = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_byte (mb, ldc_op); label_end = mono_mb_emit_branch (mb, CEE_BR); mono_mb_patch_branch (mb, label_false); mono_mb_emit_byte (mb, CEE_LDC_I4_0); mono_mb_patch_branch (mb, label_end); mono_mb_emit_byte (mb, stop); mono_mb_patch_branch (mb, label_null); break; } default: g_assert_not_reached (); } #endif return conv_arg; } static int emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { #ifndef DISABLE_JIT MonoMethodBuilder *mb = m->mb; switch (action) { case MARSHAL_ACTION_CONV_IN: /* MS seems to allow this in some cases, ie. bxc #158 */ /* if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) { char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1); mono_mb_emit_exception_marshal_directive (m->mb, msg); } */ break; case MARSHAL_ACTION_PUSH: mono_mb_emit_ldarg (mb, argnum); break; case MARSHAL_ACTION_CONV_RESULT: /* no conversions necessary */ mono_mb_emit_stloc (mb, 3); break; default: break; } #endif return conv_arg; } static int emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { #ifndef DISABLE_JIT MonoMethodBuilder *mb = m->mb; switch (action) { case MARSHAL_ACTION_PUSH: /* fixme: dont know how to marshal that. We cant simply * convert it to a one byte UTF8 character, because an * unicode character may need more that one byte in UTF8 */ mono_mb_emit_ldarg (mb, argnum); break; case MARSHAL_ACTION_CONV_RESULT: /* fixme: we need conversions here */ mono_mb_emit_stloc (mb, 3); break; default: break; } #endif return conv_arg; } static int emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { #ifndef DISABLE_JIT MonoMethodBuilder *mb = m->mb; switch (action) { case MARSHAL_ACTION_PUSH: mono_mb_emit_ldarg (mb, argnum); break; case MARSHAL_ACTION_CONV_RESULT: /* no conversions necessary */ mono_mb_emit_stloc (mb, 3); break; default: break; } #endif return conv_arg; } static int emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t, MonoMarshalSpec *spec, int conv_arg, MonoType **conv_arg_type, MarshalAction action) { /* Ensure that we have marshalling info for this param */ mono_marshal_load_type_info (mono_class_from_mono_type (t)); if (spec && spec->native == MONO_NATIVE_CUSTOM) return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action); if (spec && spec->native == MONO_NATIVE_ASANY) return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action); switch (t->type) { case MONO_TYPE_VALUETYPE: if (t->data.klass == mono_defaults.handleref_class) return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action); return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action); case MONO_TYPE_STRING: return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action); case MONO_TYPE_CLASS: case MONO_TYPE_OBJECT: #ifndef DISABLE_COM if (spec && spec->native == MONO_NATIVE_STRUCT) return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action); if (spec && (spec->native == MONO_NATIVE_IUNKNOWN || spec->native == MONO_NATIVE_IDISPATCH || spec->native == MONO_NATIVE_INTERFACE)) return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action); if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) && (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) && ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH))) return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action); #endif if (mono_defaults.safehandle_class != NULL && t->data.klass && mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE)) return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action); return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action); case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action); case MONO_TYPE_BOOLEAN: return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action); case MONO_TYPE_PTR: return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action); case MONO_TYPE_CHAR: return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action); case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_R4: case MONO_TYPE_R8: case MONO_TYPE_I8: case MONO_TYPE_U8: case MONO_TYPE_FNPTR: return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action); case MONO_TYPE_GENERICINST: if (mono_type_generic_inst_is_valuetype (t)) return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action); else return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action); } return conv_arg; } #ifndef DISABLE_JIT /** * mono_marshal_emit_native_wrapper: * @image: the image to use for looking up custom marshallers * @sig: The signature of the native function * @piinfo: Marshalling information * @mspecs: Marshalling information * @aot: whenever the created method will be compiled by the AOT compiler * @method: if non-NULL, the pinvoke method to call * @check_exceptions: Whenever to check for pending exceptions after the native call * @func_param: the function to call is passed as a boxed IntPtr as the first parameter * * generates IL code for the pinvoke wrapper, the generated code calls @func. */ void mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions, gboolean func_param) { EmitMarshalContext m; MonoMethodSignature *csig; MonoClass *klass; int i, argnum, *tmp_locals; int type, param_shift = 0; static MonoMethodSignature *get_last_error_sig = NULL; m.mb = mb; m.piinfo = piinfo; /* we copy the signature, so that we can set pinvoke to 0 */ if (func_param) { /* The function address is passed as the first argument */ g_assert (!sig->hasthis); param_shift += 1; } csig = signature_dup (mb->method->klass->image, sig); csig->pinvoke = 1; m.csig = csig; m.image = image; if (sig->hasthis) param_shift += 1; /* we allocate local for use with emit_struct_conv() */ /* allocate local 0 (pointer) src_ptr */ mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* allocate local 1 (pointer) dst_ptr */ mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* allocate local 2 (boolean) delete_old */ mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg); /* delete_old = FALSE */ mono_mb_emit_icon (mb, 0); mono_mb_emit_stloc (mb, 2); if (!MONO_TYPE_IS_VOID(sig->ret)) { /* allocate local 3 to store the return value */ mono_mb_add_local (mb, sig->ret); } if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) { /* Return type custom marshaling */ /* * Since we can't determine the return type of the unmanaged function, * we assume it returns a pointer, and pass that pointer to * MarshalNativeToManaged. */ csig->ret = &mono_defaults.int_class->byval_arg; } /* we first do all conversions */ tmp_locals = alloca (sizeof (int) * sig->param_count); m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1)); for (i = 0; i < sig->param_count; i ++) { tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN); } /* push all arguments */ if (sig->hasthis) mono_mb_emit_byte (mb, CEE_LDARG_0); for (i = 0; i < sig->param_count; i++) { emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH); } /* call the native method */ if (func_param) { mono_mb_emit_byte (mb, CEE_LDARG_0); mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_calli (mb, csig); } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) { #ifndef DISABLE_COM mono_mb_emit_cominterop_call (mb, csig, &piinfo->method); #else g_assert_not_reached (); #endif } else { if (aot) { /* Reuse the ICALL_ADDR opcode for pinvokes too */ mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method); mono_mb_emit_calli (mb, csig); } else { mono_mb_emit_native_call (mb, csig, func); } } /* Set LastError if needed */ if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) { if (!get_last_error_sig) { get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0); get_last_error_sig->ret = &mono_defaults.int_class->byval_arg; get_last_error_sig->pinvoke = 1; } #ifdef TARGET_WIN32 /* * Have to call GetLastError () early and without a wrapper, since various runtime components could * clobber its value. */ mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError); mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows); #else mono_mb_emit_icall (mb, mono_marshal_set_last_error); #endif } /* convert the result */ if (!sig->ret->byref) { MonoMarshalSpec *spec = mspecs [0]; type = sig->ret->type; if (spec && spec->native == MONO_NATIVE_CUSTOM) { emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT); } else { handle_enum: switch (type) { case MONO_TYPE_VOID: break; case MONO_TYPE_VALUETYPE: klass = sig->ret->data.klass; if (klass->enumtype) { type = mono_class_enum_basetype (sig->ret->data.klass)->type; goto handle_enum; } emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT); break; case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_R4: case MONO_TYPE_R8: case MONO_TYPE_I8: case MONO_TYPE_U8: case MONO_TYPE_FNPTR: case MONO_TYPE_STRING: case MONO_TYPE_CLASS: case MONO_TYPE_OBJECT: case MONO_TYPE_BOOLEAN: case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: case MONO_TYPE_CHAR: case MONO_TYPE_PTR: case MONO_TYPE_GENERICINST: emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT); break; case MONO_TYPE_TYPEDBYREF: default: g_warning ("return type 0x%02x unknown", sig->ret->type); g_assert_not_reached (); } } } else { mono_mb_emit_stloc (mb, 3); } /* * Need to call this after converting the result since MONO_VTADDR needs * to be adjacent to the call instruction. */ if (check_exceptions) emit_thread_interrupt_checkpoint (mb); /* we need to convert byref arguments back and free string arrays */ for (i = 0; i < sig->param_count; i++) { MonoType *t = sig->params [i]; MonoMarshalSpec *spec = mspecs [i + 1]; argnum = i + param_shift; if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) { emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT); continue; } switch (t->type) { case MONO_TYPE_STRING: case MONO_TYPE_VALUETYPE: case MONO_TYPE_CLASS: case MONO_TYPE_OBJECT: case MONO_TYPE_SZARRAY: case MONO_TYPE_BOOLEAN: emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT); break; } } if (!MONO_TYPE_IS_VOID(sig->ret)) mono_mb_emit_ldloc (mb, 3); mono_mb_emit_byte (mb, CEE_RET); } #endif /* DISABLE_JIT */ G_GNUC_UNUSED static void code_for (MonoMethod *method) { MonoMethodHeader *header = mono_method_get_header (method); printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (method, TRUE), mono_disasm_code (0, method, header->code, header->code + header->code_size)); } /** * mono_marshal_get_native_wrapper: * @method: The MonoMethod to wrap. * @check_exceptions: Whenever to check for pending exceptions * * generates IL code for the pinvoke wrapper (the generated method * calls the unmanaged code in piinfo->addr) * The wrapper info for the wrapper is a WrapperInfo structure. */ MonoMethod * mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot) { MonoMethodSignature *sig, *csig; MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method; MonoMethodBuilder *mb; MonoMarshalSpec **mspecs; MonoMethod *res; GHashTable *cache; gboolean pinvoke = FALSE; gpointer iter; int i; const char *exc_class = "MissingMethodException"; const char *exc_arg = NULL; WrapperInfo *info; g_assert (method != NULL); g_assert (mono_method_signature (method)->pinvoke); if (aot) cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL); else cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, method))) return res; if (MONO_CLASS_IS_IMPORT (method->klass)) { #ifndef DISABLE_COM return mono_cominterop_get_native_wrapper (method); #else g_assert_not_reached (); #endif } sig = mono_method_signature (method); if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) pinvoke = TRUE; if (!piinfo->addr) { if (pinvoke) { if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE) exc_arg = "Method contains unsupported native code"; else if (!aot) mono_lookup_pinvoke_call (method, &exc_class, &exc_arg); } else { piinfo->addr = mono_lookup_internal_call (method); } } /* hack - redirect certain string constructors to CreateString */ if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) { g_assert (!pinvoke); g_assert (method->string_ctor); g_assert (sig->hasthis); /* CreateString returns a value */ csig = signature_dup (method->klass->image, sig); csig->ret = &mono_defaults.string_class->byval_arg; csig->pinvoke = 0; iter = NULL; while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) { if (!strcmp ("CreateString", res->name) && mono_metadata_signature_equal (csig, mono_method_signature (res))) { WrapperInfo *info; g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)); g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)); /* create a wrapper to preserve .ctor in stack trace */ mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED); #ifndef DISABLE_JIT mono_mb_emit_byte (mb, CEE_LDARG_0); for (i = 1; i <= csig->param_count; i++) mono_mb_emit_ldarg (mb, i); mono_mb_emit_managed_call (mb, res, NULL); mono_mb_emit_byte (mb, CEE_RET); #endif /* use native_wrapper_cache because internal calls are looked up there */ res = mono_mb_create_and_cache (cache, method, mb, csig, csig->param_count + 1); mono_mb_free (mb); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_STRING_CTOR); info->d.string_ctor.method = method; mono_marshal_set_wrapper_info (res, info); return res; } } /* exception will be thrown */ piinfo->addr = NULL; g_warning ("cannot find CreateString for .ctor"); } mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE); mb->method->save_lmf = 1; /* * In AOT mode and embedding scenarios, it is possible that the icall is not * registered in the runtime doing the AOT compilation. */ if (!piinfo->addr && !aot) { #ifndef DISABLE_JIT mono_mb_emit_exception (mb, exc_class, exc_arg); #endif csig = signature_dup (method->klass->image, sig); csig->pinvoke = 0; res = mono_mb_create_and_cache (cache, method, mb, csig, csig->param_count + 16); mono_mb_free (mb); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE); info->d.managed_to_native.method = method; mono_marshal_set_wrapper_info (res, info); return res; } /* internal calls: we simply push all arguments and call the method (no conversions) */ if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) { if (sig->hasthis) csig = signature_dup_add_this (method->klass->image, sig, method->klass); else csig = signature_dup (method->klass->image, sig); /* hack - string constructors returns a value */ if (method->string_ctor) csig->ret = &mono_defaults.string_class->byval_arg; #ifndef DISABLE_JIT if (sig->hasthis) { int pos; /* * Add a null check since public icalls can be called with 'call' which * does no such check. */ mono_mb_emit_byte (mb, CEE_LDARG_0); pos = mono_mb_emit_branch (mb, CEE_BRTRUE); mono_mb_emit_exception (mb, "NullReferenceException", NULL); mono_mb_patch_branch (mb, pos); mono_mb_emit_byte (mb, CEE_LDARG_0); } for (i = 0; i < sig->param_count; i++) mono_mb_emit_ldarg (mb, i + sig->hasthis); if (aot) { mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method); mono_mb_emit_calli (mb, csig); } else { g_assert (piinfo->addr); mono_mb_emit_native_call (mb, csig, piinfo->addr); } if (check_exceptions) emit_thread_interrupt_checkpoint (mb); mono_mb_emit_byte (mb, CEE_RET); #endif csig = signature_dup (method->klass->image, csig); csig->pinvoke = 0; res = mono_mb_create_and_cache (cache, method, mb, csig, csig->param_count + 16); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE); info->d.managed_to_native.method = method; mono_marshal_set_wrapper_info (res, info); mono_mb_free (mb); return res; } g_assert (pinvoke); if (!aot) g_assert (piinfo->addr); #ifndef DISABLE_JIT mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1); mono_method_get_marshal_info (method, mspecs); mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE); #endif csig = signature_dup (method->klass->image, sig); csig->pinvoke = 0; res = mono_mb_create_and_cache (cache, method, mb, csig, csig->param_count + 16); mono_mb_free (mb); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE); info->d.managed_to_native.method = method; mono_marshal_set_wrapper_info (res, info); #ifndef DISABLE_JIT for (i = sig->param_count; i >= 0; i--) if (mspecs [i]) mono_metadata_free_marshal_spec (mspecs [i]); g_free (mspecs); #endif /* code_for (res); */ return res; } /** * mono_marshal_get_native_func_wrapper: * @image: The image to use for memory allocation and for looking up custom marshallers. * @sig: The signature of the function * @func: The native function to wrap * * Returns a wrapper method around native functions, similar to the pinvoke * wrapper. */ MonoMethod * mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func) { MonoMethodSignature *csig; MonoMethodBuilder *mb; MonoMethod *res; GHashTable *cache; char *name; cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, func))) return res; name = g_strdup_printf ("wrapper_native_%p", func); mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE); mb->method->save_lmf = 1; #ifndef DISABLE_JIT mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE); #endif csig = signature_dup (image, sig); csig->pinvoke = 0; res = mono_mb_create_and_cache (cache, func, mb, csig, csig->param_count + 16); mono_mb_free (mb); mono_marshal_set_wrapper_info (res, NULL); return res; } /* * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in * AOT. */ MonoMethod* mono_marshal_get_native_func_wrapper_aot (MonoClass *klass) { MonoMethodSignature *sig, *csig; MonoMethodBuilder *mb; MonoMethod *res; GHashTable *cache; char *name; WrapperInfo *info; MonoMethodPInvoke mpiinfo; MonoMethodPInvoke *piinfo = &mpiinfo; MonoMarshalSpec **mspecs; MonoMethod *invoke = mono_get_delegate_invoke (klass); MonoImage *image = invoke->klass->image; int i; // FIXME: include UnmanagedFunctionPointerAttribute info /* * The wrapper is associated with the delegate type, to pick up the marshalling info etc. */ cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, invoke))) return res; memset (&mpiinfo, 0, sizeof (mpiinfo)); parse_unmanaged_function_pointer_attr (klass, &mpiinfo); mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1); mono_method_get_marshal_info (invoke, mspecs); /* Freed below so don't alloc from mempool */ sig = mono_metadata_signature_dup (mono_method_signature (invoke)); sig->hasthis = 0; name = g_strdup_printf ("wrapper_aot_native"); mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE); mb->method->save_lmf = 1; #ifndef DISABLE_JIT mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE); #endif g_assert (!sig->hasthis); csig = signature_dup_add_this (image, sig, mono_defaults.int_class); csig->pinvoke = 0; res = mono_mb_create_and_cache (cache, invoke, mb, csig, csig->param_count + 16); mono_mb_free (mb); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT); info->d.managed_to_native.method = invoke; mono_marshal_set_wrapper_info (res, info); for (i = mono_method_signature (invoke)->param_count; i >= 0; i--) if (mspecs [i]) mono_metadata_free_marshal_spec (mspecs [i]); g_free (mspecs); g_free (sig); return res; } /* * mono_marshal_emit_managed_wrapper: * * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of * the delegate which wraps the managed method to be called. For closed delegates, * it could have fewer parameters than the method it wraps. * THIS_LOC is the memory location where the target of the delegate is stored. */ void mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle) { #ifdef DISABLE_JIT MonoMethodSignature *sig, *csig; int i; sig = m->sig; csig = m->csig; /* we first do all conversions */ for (i = 0; i < sig->param_count; i ++) { MonoType *t = sig->params [i]; switch (t->type) { case MONO_TYPE_OBJECT: case MONO_TYPE_CLASS: case MONO_TYPE_VALUETYPE: case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: case MONO_TYPE_STRING: case MONO_TYPE_BOOLEAN: emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN); } } if (!sig->ret->byref) { switch (sig->ret->type) { case MONO_TYPE_STRING: csig->ret = &mono_defaults.int_class->byval_arg; break; default: break; } } #else MonoMethodSignature *sig, *csig; int i, *tmp_locals; gboolean closed = FALSE; sig = m->sig; csig = m->csig; /* allocate local 0 (pointer) src_ptr */ mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* allocate local 1 (pointer) dst_ptr */ mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* allocate local 2 (boolean) delete_old */ mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg); if (!sig->hasthis && sig->param_count != invoke_sig->param_count) { /* Closed delegate */ g_assert (sig->param_count == invoke_sig->param_count + 1); closed = TRUE; /* Use a new signature without the first argument */ sig = mono_metadata_signature_dup (sig); memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*)); sig->param_count --; } if (!MONO_TYPE_IS_VOID(sig->ret)) { /* allocate local 3 to store the return value */ mono_mb_add_local (mb, sig->ret); } mono_mb_emit_icon (mb, 0); mono_mb_emit_stloc (mb, 2); /* * Might need to attach the thread to the JIT or change the * domain for the callback. */ mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH); /* we first do all conversions */ tmp_locals = alloca (sizeof (int) * sig->param_count); for (i = 0; i < sig->param_count; i ++) { MonoType *t = sig->params [i]; switch (t->type) { case MONO_TYPE_OBJECT: case MONO_TYPE_CLASS: case MONO_TYPE_VALUETYPE: case MONO_TYPE_ARRAY: case MONO_TYPE_SZARRAY: case MONO_TYPE_STRING: case MONO_TYPE_BOOLEAN: tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN); break; default: tmp_locals [i] = 0; break; } } emit_thread_interrupt_checkpoint (mb); if (sig->hasthis) { if (target_handle) { mono_mb_emit_icon (mb, (gint32)target_handle); mono_mb_emit_icall (mb, mono_gchandle_get_target); } else { /* fixme: */ g_assert_not_reached (); } } else if (closed) { mono_mb_emit_icon (mb, (gint32)target_handle); mono_mb_emit_icall (mb, mono_gchandle_get_target); } for (i = 0; i < sig->param_count; i++) { MonoType *t = sig->params [i]; if (tmp_locals [i]) { if (t->byref) mono_mb_emit_ldloc_addr (mb, tmp_locals [i]); else mono_mb_emit_ldloc (mb, tmp_locals [i]); } else mono_mb_emit_ldarg (mb, i); } mono_mb_emit_managed_call (mb, method, NULL); if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) { emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT); } else if (!sig->ret->byref) { switch (sig->ret->type) { case MONO_TYPE_VOID: break; case MONO_TYPE_BOOLEAN: case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_CHAR: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_PTR: case MONO_TYPE_R4: case MONO_TYPE_R8: case MONO_TYPE_I8: case MONO_TYPE_U8: case MONO_TYPE_OBJECT: mono_mb_emit_stloc (mb, 3); break; case MONO_TYPE_STRING: csig->ret = &mono_defaults.int_class->byval_arg; emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT); break; case MONO_TYPE_VALUETYPE: case MONO_TYPE_CLASS: case MONO_TYPE_SZARRAY: emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT); break; default: g_warning ("return type 0x%02x unknown", sig->ret->type); g_assert_not_reached (); } } else { mono_mb_emit_stloc (mb, 3); } /* Convert byref arguments back */ for (i = 0; i < sig->param_count; i ++) { MonoType *t = sig->params [i]; MonoMarshalSpec *spec = mspecs [i + 1]; if (spec && spec->native == MONO_NATIVE_CUSTOM) { emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT); } else if (t->byref) { switch (t->type) { case MONO_TYPE_CLASS: case MONO_TYPE_VALUETYPE: case MONO_TYPE_OBJECT: case MONO_TYPE_STRING: case MONO_TYPE_BOOLEAN: emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT); break; } } else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) { /* The [Out] information is encoded in the delegate signature */ switch (t->type) { case MONO_TYPE_SZARRAY: case MONO_TYPE_CLASS: case MONO_TYPE_VALUETYPE: emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT); break; default: g_assert_not_reached (); } } } mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH); if (m->retobj_var) { mono_mb_emit_ldloc (mb, m->retobj_var); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class); } else { if (!MONO_TYPE_IS_VOID(sig->ret)) mono_mb_emit_ldloc (mb, 3); mono_mb_emit_byte (mb, CEE_RET); } if (closed) g_free (sig); #endif } static void mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig) { MonoMethodSignature *sig; int i; #ifdef TARGET_WIN32 /* * Under windows, delegates passed to native code must use the STDCALL * calling convention. */ csig->call_convention = MONO_CALL_STDCALL; #endif sig = mono_method_signature (method); /* Change default calling convention if needed */ /* Why is this a modopt ? */ if (sig->ret && sig->ret->num_mods) { for (i = 0; i < sig->ret->num_mods; ++i) { MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token); g_assert (cmod_class); if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) { if (!strcmp (cmod_class->name, "CallConvCdecl")) csig->call_convention = MONO_CALL_C; else if (!strcmp (cmod_class->name, "CallConvStdcall")) csig->call_convention = MONO_CALL_STDCALL; else if (!strcmp (cmod_class->name, "CallConvFastcall")) csig->call_convention = MONO_CALL_FASTCALL; else if (!strcmp (cmod_class->name, "CallConvThiscall")) csig->call_convention = MONO_CALL_THISCALL; } } } } /* * generates IL code to call managed methods from unmanaged code * If target_handle==0, the wrapper info will be a WrapperInfo structure. */ MonoMethod * mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle) { static MonoClass *UnmanagedFunctionPointerAttribute; MonoMethodSignature *sig, *csig, *invoke_sig; MonoMethodBuilder *mb; MonoMethod *res, *invoke; MonoMarshalSpec **mspecs; MonoMethodPInvoke piinfo; GHashTable *cache; int i; EmitMarshalContext m; g_assert (method != NULL); g_assert (!mono_method_signature (method)->pinvoke); /* * FIXME: Should cache the method+delegate type pair, since the same method * could be called with different delegates, thus different marshalling * options. */ cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL); if (!target_handle && (res = mono_marshal_find_in_cache (cache, method))) return res; invoke = mono_get_delegate_invoke (delegate_klass); invoke_sig = mono_method_signature (invoke); mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1); mono_method_get_marshal_info (invoke, mspecs); sig = mono_method_signature (method); mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED); /*the target gchandle must be the first entry after size and the wrapper itself.*/ mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle)); /* we copy the signature, so that we can modify it */ if (target_handle) /* Need to free this later */ csig = mono_metadata_signature_dup (invoke_sig); else csig = signature_dup (method->klass->image, invoke_sig); csig->hasthis = 0; csig->pinvoke = 1; m.mb = mb; m.sig = sig; m.piinfo = NULL; m.retobj_var = 0; m.csig = csig; m.image = method->klass->image; mono_marshal_set_callconv_from_modopt (invoke, csig); /* Handle the UnmanagedFunctionPointerAttribute */ if (!UnmanagedFunctionPointerAttribute) UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute"); /* The attribute is only available in Net 2.0 */ if (UnmanagedFunctionPointerAttribute) { MonoCustomAttrInfo *cinfo; MonoCustomAttrEntry *attr; /* * The pinvoke attributes are stored in a real custom attribute. Obtain the * contents of the attribute without constructing it, as that might not be * possible when running in cross-compiling mode. */ cinfo = mono_custom_attrs_from_class (delegate_klass); attr = NULL; if (cinfo) { for (i = 0; i < cinfo->num_attrs; ++i) { MonoClass *ctor_class = cinfo->attrs [i].ctor->klass; if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) { attr = &cinfo->attrs [i]; break; } } } if (attr) { MonoArray *typed_args, *named_args; CattrNamedArg *arginfo; MonoObject *o; gint32 call_conv; gint32 charset = 0; MonoBoolean set_last_error = 0; MonoBoolean best_fit_mapping = 0; MonoBoolean throw_on_unmappable = 0; MonoError error; mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error); g_assert (mono_error_ok (&error)); g_assert (mono_array_length (typed_args) == 1); /* typed args */ o = mono_array_get (typed_args, MonoObject*, 0); call_conv = *(gint32*)mono_object_unbox (o); /* named args */ for (i = 0; i < mono_array_length (named_args); ++i) { CattrNamedArg *narg = &arginfo [i]; o = mono_array_get (named_args, MonoObject*, i); g_assert (narg->field); if (!strcmp (narg->field->name, "CharSet")) { charset = *(gint32*)mono_object_unbox (o); } else if (!strcmp (narg->field->name, "SetLastError")) { set_last_error = *(MonoBoolean*)mono_object_unbox (o); } else if (!strcmp (narg->field->name, "BestFitMapping")) { best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o); } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) { throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o); } else { g_assert_not_reached (); } } g_free (arginfo); memset (&piinfo, 0, sizeof (piinfo)); m.piinfo = &piinfo; piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error; csig->call_convention = call_conv - 1; } if (cinfo && !cinfo->cached) mono_custom_attrs_free (cinfo); } mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle); if (!target_handle) { WrapperInfo *info; res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16); // FIXME: Associate it with the method+delegate_klass pair info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE); info->d.native_to_managed.method = method; info->d.native_to_managed.klass = delegate_klass; mono_marshal_set_wrapper_info (res, info); } else { #ifndef DISABLE_JIT mb->dynamic = 1; #endif res = mono_mb_create_method (mb, csig, sig->param_count + 16); } mono_mb_free (mb); for (i = mono_method_signature (invoke)->param_count; i >= 0; i--) if (mspecs [i]) mono_metadata_free_marshal_spec (mspecs [i]); g_free (mspecs); /* code_for (res); */ return res; } gpointer mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type) { MonoMethod *method; MonoMethodSignature *sig; MonoMethodBuilder *mb; int i, param_count; g_assert (token); method = mono_get_method (image, token, NULL); g_assert (method); if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) { MonoMethodSignature *csig; MonoMarshalSpec **mspecs; EmitMarshalContext m; sig = mono_method_signature (method); g_assert (!sig->hasthis); mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1); mono_method_get_marshal_info (method, mspecs); mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED); csig = signature_dup (image, sig); csig->hasthis = 0; csig->pinvoke = 1; m.mb = mb; m.sig = sig; m.piinfo = NULL; m.retobj_var = 0; m.csig = csig; m.image = image; mono_marshal_set_callconv_from_modopt (method, csig); /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */ mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0); #ifndef DISABLE_JIT mb->dynamic = 1; #endif method = mono_mb_create_method (mb, csig, sig->param_count + 16); mono_mb_free (mb); for (i = sig->param_count; i >= 0; i--) if (mspecs [i]) mono_metadata_free_marshal_spec (mspecs [i]); g_free (mspecs); return mono_compile_method (method); } sig = mono_method_signature (method); mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED); #ifndef DISABLE_JIT param_count = sig->param_count + sig->hasthis; for (i = 0; i < param_count; i++) mono_mb_emit_ldarg (mb, i); if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED) mono_mb_emit_op (mb, CEE_CALLVIRT, method); else mono_mb_emit_op (mb, CEE_CALL, method); mono_mb_emit_byte (mb, CEE_RET); mb->dynamic = 1; #endif method = mono_mb_create_method (mb, sig, param_count); mono_mb_free (mb); return mono_compile_method (method); } static MonoReflectionType * type_from_handle (MonoType *handle) { MonoDomain *domain = mono_domain_get (); MonoClass *klass = mono_class_from_mono_type (handle); MONO_ARCH_SAVE_REGS; mono_class_init (klass); return mono_type_get_object (domain, handle); } /* * This does the equivalent of mono_object_castclass_with_cache. * The wrapper info for the wrapper is a WrapperInfo structure. */ MonoMethod * mono_marshal_get_castclass_with_cache (void) { static MonoMethod *cached; MonoMethod *res; MonoMethodBuilder *mb; MonoMethodSignature *sig; int return_null_pos, cache_miss_pos, invalid_cast_pos; WrapperInfo *info; if (cached) return cached; mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS); sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3); sig->params [0] = &mono_defaults.object_class->byval_arg; sig->params [1] = &mono_defaults.int_class->byval_arg; sig->params [2] = &mono_defaults.int_class->byval_arg; sig->ret = &mono_defaults.object_class->byval_arg; sig->pinvoke = 0; #ifndef DISABLE_JIT /* allocate local 0 (pointer) obj_vtable */ mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /*if (!obj)*/ mono_mb_emit_ldarg (mb, 0); return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE); /*obj_vtable = obj->vtable;*/ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, 0); /* *cache */ mono_mb_emit_ldarg (mb, 2); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldloc (mb, 0); /*if (*cache == obj_vtable)*/ cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN); /*return obj;*/ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_byte (mb, CEE_RET); mono_mb_patch_branch (mb, cache_miss_pos); /*if (mono_object_isinst (obj, klass)) */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldarg (mb, 1); mono_mb_emit_icall (mb, mono_object_isinst); invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE); /**cache = obj_vtable;*/ mono_mb_emit_ldarg (mb, 2); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_STIND_I); /*return obj;*/ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_byte (mb, CEE_RET); /*fails*/ mono_mb_patch_branch (mb, invalid_cast_pos); mono_mb_emit_exception (mb, "InvalidCastException", NULL); /*return null*/ mono_mb_patch_branch (mb, return_null_pos); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_byte (mb, CEE_RET); #endif /* DISABLE_JIT */ res = mono_mb_create_method (mb, sig, 8); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE); mono_marshal_set_wrapper_info (res, info); STORE_STORE_FENCE; if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) { mono_free_method (res); mono_metadata_free_method_signature (sig); } mono_mb_free (mb); return cached; } /* * This does the equivalent of mono_object_isinst_with_cache. * The wrapper info for the wrapper is a WrapperInfo structure. */ MonoMethod * mono_marshal_get_isinst_with_cache (void) { static MonoMethod *cached; MonoMethod *res; MonoMethodBuilder *mb; MonoMethodSignature *sig; int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos; WrapperInfo *info; if (cached) return cached; mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS); sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3); sig->params [0] = &mono_defaults.object_class->byval_arg; sig->params [1] = &mono_defaults.int_class->byval_arg; sig->params [2] = &mono_defaults.int_class->byval_arg; sig->ret = &mono_defaults.object_class->byval_arg; sig->pinvoke = 0; #ifndef DISABLE_JIT /* allocate local 0 (pointer) obj_vtable */ mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* allocate local 1 (pointer) cached_vtable */ mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /*if (!obj)*/ mono_mb_emit_ldarg (mb, 0); return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE); /*obj_vtable = obj->vtable;*/ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, 0); /* cached_vtable = *cache*/ mono_mb_emit_ldarg (mb, 2); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, 1); mono_mb_emit_ldloc (mb, 1); mono_mb_emit_byte (mb, CEE_LDC_I4); mono_mb_emit_i4 (mb, ~0x1); mono_mb_emit_byte (mb, CEE_CONV_U); mono_mb_emit_byte (mb, CEE_AND); mono_mb_emit_ldloc (mb, 0); /*if ((cached_vtable & ~0x1)== obj_vtable)*/ cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN); /*return (cached_vtable & 0x1) ? NULL : obj;*/ mono_mb_emit_ldloc (mb, 1); mono_mb_emit_byte(mb, CEE_LDC_I4_1); mono_mb_emit_byte (mb, CEE_CONV_U); mono_mb_emit_byte (mb, CEE_AND); negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE); /*obj*/ mono_mb_emit_ldarg (mb, 0); cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR); /*NULL*/ mono_mb_patch_branch (mb, negative_cache_hit_pos); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_patch_branch (mb, cache_hit_pos); mono_mb_emit_byte (mb, CEE_RET); mono_mb_patch_branch (mb, cache_miss_pos); /*if (mono_object_isinst (obj, klass)) */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldarg (mb, 1); mono_mb_emit_icall (mb, mono_object_isinst); not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE); /**cache = obj_vtable;*/ mono_mb_emit_ldarg (mb, 2); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_STIND_I); /*return obj;*/ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_byte (mb, CEE_RET); /*not an instance*/ mono_mb_patch_branch (mb, not_an_instance_pos); /* *cache = (gpointer)(obj_vtable | 0x1);*/ mono_mb_emit_ldarg (mb, 2); /*obj_vtable | 0x1*/ mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte(mb, CEE_LDC_I4_1); mono_mb_emit_byte (mb, CEE_CONV_U); mono_mb_emit_byte (mb, CEE_OR); /* *cache = ... */ mono_mb_emit_byte (mb, CEE_STIND_I); /*return null*/ mono_mb_patch_branch (mb, return_null_pos); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_byte (mb, CEE_RET); #endif res = mono_mb_create_method (mb, sig, 8); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ISINST_WITH_CACHE); mono_marshal_set_wrapper_info (res, info); STORE_STORE_FENCE; if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) { mono_free_method (res); mono_metadata_free_method_signature (sig); } mono_mb_free (mb); return cached; } /* * mono_marshal_get_isinst: * @klass: the type of the field * * This method generates a function which can be used to check if an object is * an instance of the given type, icluding the case where the object is a proxy. * The generated function has the following signature: * MonoObject* __isinst_wrapper_ (MonoObject *obj) */ MonoMethod * mono_marshal_get_isinst (MonoClass *klass) { static MonoMethodSignature *isint_sig = NULL; GHashTable *cache; MonoMethod *res; int pos_was_ok, pos_end; #ifndef DISABLE_REMOTING int pos_end2, pos_failed; #endif char *name; MonoMethodBuilder *mb; cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, klass))) return res; if (!isint_sig) { isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1); isint_sig->params [0] = &mono_defaults.object_class->byval_arg; isint_sig->ret = &mono_defaults.object_class->byval_arg; isint_sig->pinvoke = 0; } name = g_strdup_printf ("__isinst_wrapper_%s", klass->name); mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST); g_free (name); mb->method->save_lmf = 1; #ifndef DISABLE_JIT /* check if the object is a proxy that needs special cast */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_CISINST, klass); /* The result of MONO_CISINST can be: 0) the type check succeeded 1) the type check did not succeed 2) a CanCastTo call is needed */ #ifndef DISABLE_REMOTING mono_mb_emit_byte (mb, CEE_DUP); pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE); mono_mb_emit_byte (mb, CEE_LDC_I4_2); pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN); /* get the real proxy from the transparent proxy*/ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL); pos_end = mono_mb_emit_branch (mb, CEE_BR); /* fail */ mono_mb_patch_branch (mb, pos_failed); mono_mb_emit_byte (mb, CEE_LDNULL); pos_end2 = mono_mb_emit_branch (mb, CEE_BR); /* success */ mono_mb_patch_branch (mb, pos_was_ok); mono_mb_emit_byte (mb, CEE_POP); mono_mb_emit_ldarg (mb, 0); /* the end */ mono_mb_patch_branch (mb, pos_end); mono_mb_patch_branch (mb, pos_end2); mono_mb_emit_byte (mb, CEE_RET); #else pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE); /* fail */ mono_mb_emit_byte (mb, CEE_LDNULL); pos_end = mono_mb_emit_branch (mb, CEE_BR); /* success */ mono_mb_patch_branch (mb, pos_was_ok); mono_mb_emit_ldarg (mb, 0); /* the end */ mono_mb_patch_branch (mb, pos_end); mono_mb_emit_byte (mb, CEE_RET); #endif /* DISABLE_REMOTING */ #endif /* DISABLE_JIT */ res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16); mono_mb_free (mb); return res; } /* * mono_marshal_get_castclass: * @klass: the type of the field * * This method generates a function which can be used to cast an object to * an instance of the given type, icluding the case where the object is a proxy. * The generated function has the following signature: * MonoObject* __castclass_wrapper_ (MonoObject *obj) * The wrapper info for the wrapper is a WrapperInfo structure. */ MonoMethod * mono_marshal_get_castclass (MonoClass *klass) { static MonoMethodSignature *castclass_sig = NULL; GHashTable *cache; MonoMethod *res; #ifndef DISABLE_REMOTING int pos_was_ok, pos_was_ok2; #endif char *name; MonoMethodBuilder *mb; WrapperInfo *info; cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, klass))) return res; if (!castclass_sig) { castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1); castclass_sig->params [0] = &mono_defaults.object_class->byval_arg; castclass_sig->ret = &mono_defaults.object_class->byval_arg; castclass_sig->pinvoke = 0; } name = g_strdup_printf ("__castclass_wrapper_%s", klass->name); mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS); g_free (name); mb->method->save_lmf = 1; #ifndef DISABLE_JIT /* check if the object is a proxy that needs special cast */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX); mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass); /* The result of MONO_CCASTCLASS can be: 0) the cast is valid 1) cast of unknown proxy type or an exception if the cast is is invalid */ #ifndef DISABLE_REMOTING pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE); /* get the real proxy from the transparent proxy*/ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL); pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE); /* fail */ mono_mb_emit_exception (mb, "InvalidCastException", NULL); /* success */ mono_mb_patch_branch (mb, pos_was_ok); mono_mb_patch_branch (mb, pos_was_ok2); #else /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */ mono_mb_emit_byte (mb, CEE_POP); #endif /* DISABLE_REMOTING */ mono_mb_emit_ldarg (mb, 0); /* the end */ mono_mb_emit_byte (mb, CEE_RET); #endif /* DISABLE_JIT */ res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16); mono_mb_free (mb); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE); mono_marshal_set_wrapper_info (res, info); return res; } #ifndef DISABLE_REMOTING MonoMethod * mono_marshal_get_proxy_cancast (MonoClass *klass) { static MonoMethodSignature *isint_sig = NULL; GHashTable *cache; MonoMethod *res; int pos_failed, pos_end; char *name, *klass_name; MonoMethod *can_cast_to; MonoMethodDesc *desc; MonoMethodBuilder *mb; cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, klass))) return res; if (!isint_sig) { isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1); isint_sig->params [0] = &mono_defaults.object_class->byval_arg; isint_sig->ret = &mono_defaults.object_class->byval_arg; isint_sig->pinvoke = 0; } klass_name = mono_type_full_name (&klass->byval_arg); name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name); mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST); g_free (klass_name); g_free (name); mb->method->save_lmf = 1; #ifndef DISABLE_JIT /* get the real proxy from the transparent proxy*/ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp)); mono_mb_emit_byte (mb, CEE_LDIND_REF); /* get the reflection type from the type handle */ mono_mb_emit_ptr (mb, &klass->byval_arg); mono_mb_emit_icall (mb, type_from_handle); mono_mb_emit_ldarg (mb, 0); /* make the call to CanCastTo (type, ob) */ desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE); can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class); g_assert (can_cast_to); mono_method_desc_free (desc); mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to); pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE); /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/ mono_mb_emit_ptr (mb, &klass->byval_arg); mono_mb_emit_icall (mb, type_from_handle); mono_mb_emit_ldarg (mb, 0); mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper); emit_thread_interrupt_checkpoint (mb); mono_mb_emit_ldarg (mb, 0); pos_end = mono_mb_emit_branch (mb, CEE_BR); /* fail */ mono_mb_patch_branch (mb, pos_failed); mono_mb_emit_byte (mb, CEE_LDNULL); /* the end */ mono_mb_patch_branch (mb, pos_end); mono_mb_emit_byte (mb, CEE_RET); #endif res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16); mono_mb_free (mb); return res; } void mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy) { MonoClass *klass; MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain; klass = mono_class_from_mono_type (rtype->type); mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass); } #endif /*DISABLE_REMOTING */ /** * mono_marshal_get_struct_to_ptr: * @klass: * * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld) * The wrapper info for the wrapper is a WrapperInfo structure. */ MonoMethod * mono_marshal_get_struct_to_ptr (MonoClass *klass) { MonoMethodBuilder *mb; static MonoMethod *stoptr = NULL; MonoMethod *res; WrapperInfo *info; g_assert (klass != NULL); mono_marshal_load_type_info (klass); if (klass->marshal_info->str_to_ptr) return klass->marshal_info->str_to_ptr; if (!stoptr) stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3); g_assert (stoptr); mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN); #ifndef DISABLE_JIT if (klass->blittable) { mono_mb_emit_byte (mb, CEE_LDARG_1); mono_mb_emit_byte (mb, CEE_LDARG_0); mono_mb_emit_ldflda (mb, sizeof (MonoObject)); mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL)); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_CPBLK); } else { /* allocate local 0 (pointer) src_ptr */ mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* allocate local 1 (pointer) dst_ptr */ mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* allocate local 2 (boolean) delete_old */ mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg); mono_mb_emit_byte (mb, CEE_LDARG_2); mono_mb_emit_stloc (mb, 2); /* initialize src_ptr to point to the start of object data */ mono_mb_emit_byte (mb, CEE_LDARG_0); mono_mb_emit_ldflda (mb, sizeof (MonoObject)); mono_mb_emit_stloc (mb, 0); /* initialize dst_ptr */ mono_mb_emit_byte (mb, CEE_LDARG_1); mono_mb_emit_stloc (mb, 1); emit_struct_conv (mb, klass, FALSE); } mono_mb_emit_byte (mb, CEE_RET); #endif res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0); mono_mb_free (mb); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR); mono_marshal_set_wrapper_info (res, info); klass->marshal_info->str_to_ptr = res; return res; } /** * mono_marshal_get_ptr_to_struct: * @klass: * * generates IL code for PtrToStructure (IntPtr src, object structure) * The wrapper info for the wrapper is a WrapperInfo structure. */ MonoMethod * mono_marshal_get_ptr_to_struct (MonoClass *klass) { MonoMethodBuilder *mb; static MonoMethodSignature *ptostr = NULL; MonoMethod *res; WrapperInfo *info; g_assert (klass != NULL); mono_marshal_load_type_info (klass); if (klass->marshal_info->ptr_to_str) return klass->marshal_info->ptr_to_str; if (!ptostr) { MonoMethodSignature *sig; /* Create the signature corresponding to static void PtrToStructure (IntPtr ptr, object structure); defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */ sig = mono_create_icall_signature ("void ptr object"); sig = signature_dup (mono_defaults.corlib, sig); sig->pinvoke = 0; mono_memory_barrier (); ptostr = sig; } mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN); #ifndef DISABLE_JIT if (klass->blittable) { mono_mb_emit_byte (mb, CEE_LDARG_1); mono_mb_emit_ldflda (mb, sizeof (MonoObject)); mono_mb_emit_byte (mb, CEE_LDARG_0); mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL)); mono_mb_emit_byte (mb, CEE_PREFIX1); mono_mb_emit_byte (mb, CEE_CPBLK); } else { /* allocate local 0 (pointer) src_ptr */ mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); /* allocate local 1 (pointer) dst_ptr */ mono_mb_add_local (mb, &klass->this_arg); /* initialize src_ptr to point to the start of object data */ mono_mb_emit_byte (mb, CEE_LDARG_0); mono_mb_emit_stloc (mb, 0); /* initialize dst_ptr */ mono_mb_emit_byte (mb, CEE_LDARG_1); mono_mb_emit_op (mb, CEE_UNBOX, klass); mono_mb_emit_stloc (mb, 1); emit_struct_conv (mb, klass, TRUE); } mono_mb_emit_byte (mb, CEE_RET); #endif res = mono_mb_create_method (mb, ptostr, 0); mono_mb_free (mb); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE); mono_marshal_set_wrapper_info (res, info); klass->marshal_info->ptr_to_str = res; return res; } /* * Return a dummy wrapper for METHOD which is called by synchronized wrappers. * This is used to avoid infinite recursion since it is hard to determine where to * replace a method with its synchronized wrapper, and where not. * The runtime should execute METHOD instead of the wrapper. * The wrapper info for the wrapper is a WrapperInfo structure. */ MonoMethod * mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method) { MonoMethodBuilder *mb; WrapperInfo *info; MonoMethodSignature *sig; MonoMethod *res; MonoGenericContext *ctx = NULL; MonoMethod *orig_method = NULL; MonoGenericContainer *container = NULL; if (method->is_inflated && !mono_method_get_context (method)->method_inst) { orig_method = method; ctx = &((MonoMethodInflated*)method)->context; method = ((MonoMethodInflated*)method)->declaring; container = mono_method_get_generic_container (method); if (!container) container = method->klass->generic_container; g_assert (container); } mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN); #ifndef DISABLE_JIT mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called."); mono_mb_emit_byte (mb, CEE_RET); #endif sig = signature_dup (method->klass->image, mono_method_signature (method)); res = mono_mb_create_method (mb, sig, 0); mono_mb_free (mb); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER); info->d.synchronized_inner.method = method; mono_marshal_set_wrapper_info (res, info); if (ctx) res = mono_class_inflate_generic_method (res, ctx); return res; } /* * generates IL code for the synchronized wrapper: the generated method * calls METHOD while locking 'this' or the parent type. */ MonoMethod * mono_marshal_get_synchronized_wrapper (MonoMethod *method) { static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method; MonoMethodSignature *sig; MonoExceptionClause *clause; MonoMethodBuilder *mb; MonoMethod *res; GHashTable *cache; int i, pos, this_local, ret_local = 0; MonoGenericContext *ctx = NULL; MonoMethod *orig_method = NULL; MonoGenericContainer *container = NULL; g_assert (method); if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) return method; /* FIXME: Support generic methods too */ if (method->is_inflated && !mono_method_get_context (method)->method_inst) { orig_method = method; ctx = &((MonoMethodInflated*)method)->context; method = ((MonoMethodInflated*)method)->declaring; container = mono_method_get_generic_container (method); if (!container) container = method->klass->generic_container; g_assert (container); } /* * Check cache */ if (ctx) { cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL); res = check_generic_wrapper_cache (cache, orig_method, orig_method, method); if (res) return res; } else { cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, method))) return res; } sig = signature_dup (method->klass->image, mono_method_signature (method)); sig->pinvoke = 0; mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED); #ifndef DISABLE_JIT /* result */ if (!MONO_TYPE_IS_VOID (sig->ret)) ret_local = mono_mb_add_local (mb, sig->ret); #endif if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) { mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL); #ifndef DISABLE_JIT /* This will throw the type load exception when the wrapper is compiled */ mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_op (mb, CEE_ISINST, method->klass); mono_mb_emit_byte (mb, CEE_POP); if (!MONO_TYPE_IS_VOID (sig->ret)) mono_mb_emit_ldloc (mb, ret_local); mono_mb_emit_byte (mb, CEE_RET); #endif res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16); mono_mb_free (mb); return res; } #ifndef DISABLE_JIT /* this */ this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause)); clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY; #endif mono_marshal_lock (); if (!enter_method) { MonoMethodDesc *desc; desc = mono_method_desc_new ("Monitor:Enter", FALSE); enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class); g_assert (enter_method); mono_method_desc_free (desc); desc = mono_method_desc_new ("Monitor:Exit", FALSE); exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class); g_assert (exit_method); mono_method_desc_free (desc); desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE); gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class); g_assert (gettypefromhandle_method); mono_method_desc_free (desc); } mono_marshal_unlock (); #ifndef DISABLE_JIT /* Push this or the type object */ if (method->flags & METHOD_ATTRIBUTE_STATIC) { /* We have special handling for this in the JIT */ int index = mono_mb_add_data (mb, method->klass); mono_mb_add_data (mb, mono_defaults.typehandle_class); mono_mb_emit_byte (mb, CEE_LDTOKEN); mono_mb_emit_i4 (mb, index); mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL); } else mono_mb_emit_ldarg (mb, 0); mono_mb_emit_stloc (mb, this_local); /* Call Monitor::Enter() */ mono_mb_emit_ldloc (mb, this_local); mono_mb_emit_managed_call (mb, enter_method, NULL); clause->try_offset = mono_mb_get_label (mb); /* Call the method */ if (sig->hasthis) mono_mb_emit_ldarg (mb, 0); for (i = 0; i < sig->param_count; i++) mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE)); if (ctx) mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method (method, &container->context), NULL); else mono_mb_emit_managed_call (mb, method, NULL); if (!MONO_TYPE_IS_VOID (sig->ret)) mono_mb_emit_stloc (mb, ret_local); pos = mono_mb_emit_branch (mb, CEE_LEAVE); clause->try_len = mono_mb_get_pos (mb) - clause->try_offset; clause->handler_offset = mono_mb_get_label (mb); /* Call Monitor::Exit() */ mono_mb_emit_ldloc (mb, this_local); mono_mb_emit_managed_call (mb, exit_method, NULL); mono_mb_emit_byte (mb, CEE_ENDFINALLY); clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset; mono_mb_patch_branch (mb, pos); if (!MONO_TYPE_IS_VOID (sig->ret)) mono_mb_emit_ldloc (mb, ret_local); mono_mb_emit_byte (mb, CEE_RET); mono_mb_set_clauses (mb, 1, clause); #endif if (ctx) { MonoMethod *def; def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16); res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method); } else { res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16); } mono_mb_free (mb); return res; } /* * the returned method calls 'method' unboxing the this argument */ MonoMethod * mono_marshal_get_unbox_wrapper (MonoMethod *method) { MonoMethodSignature *sig = mono_method_signature (method); int i; MonoMethodBuilder *mb; MonoMethod *res; GHashTable *cache; cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, method))) return res; mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX); g_assert (sig->hasthis); #ifndef DISABLE_JIT mono_mb_emit_ldarg (mb, 0); mono_mb_emit_icon (mb, sizeof (MonoObject)); mono_mb_emit_byte (mb, CEE_ADD); for (i = 0; i < sig->param_count; ++i) mono_mb_emit_ldarg (mb, i + 1); mono_mb_emit_managed_call (mb, method, NULL); mono_mb_emit_byte (mb, CEE_RET); #endif res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16); mono_mb_free (mb); /* code_for (res); */ return res; } enum { STELEMREF_OBJECT, /*no check at all*/ STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */ STELEMREF_CLASS, /*only the klass->parents check*/ STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */ STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/ STELEMREF_KIND_COUNT }; static const char *strelemref_wrapper_name[] = { "object", "sealed_class", "class", "interface", "complex" }; static gboolean is_monomorphic_array (MonoClass *klass) { MonoClass *element_class; if (klass->rank != 1) return FALSE; element_class = klass->element_class; return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype; } static int get_virtual_stelemref_kind (MonoClass *element_class) { if (element_class == mono_defaults.object_class) return STELEMREF_OBJECT; if (is_monomorphic_array (element_class)) return STELEMREF_SEALED_CLASS; /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */ if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class)) #ifdef COMPRESSED_INTERFACE_BITMAP return STELEMREF_COMPLEX; #else return STELEMREF_INTERFACE; #endif /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/ if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class)) return STELEMREF_COMPLEX; if (element_class->flags & TYPE_ATTRIBUTE_SEALED) return STELEMREF_SEALED_CLASS; return STELEMREF_CLASS; } #ifndef DISABLE_JIT static void load_array_element_address (MonoMethodBuilder *mb) { mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldarg (mb, 1); mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class); } static void load_array_class (MonoMethodBuilder *mb, int aklass) { mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, aklass); } static void load_value_class (MonoMethodBuilder *mb, int vklass) { mono_mb_emit_ldarg (mb, 2); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, vklass); } #endif #if 0 static void record_slot_vstore (MonoObject *array, size_t index, MonoObject *value) { char *name = mono_type_get_full_name (array->vtable->klass->element_class); printf ("slow vstore of %s\n", name); g_free (name); } #endif /* * The wrapper info for the wrapper is a WrapperInfo structure. * * TODO: * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them. * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch * - Maybe mve some MonoClass field into the vtable to reduce the number of loads * - Add a case for arrays of arrays. */ static MonoMethod* get_virtual_stelemref_wrapper (int kind) { static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/ static MonoMethodSignature *signature; MonoMethodBuilder *mb; MonoMethod *res; char *name; const char *param_names [16]; guint32 b1, b2, b3; int aklass, vklass, vtable, uiid; int array_slot_addr; WrapperInfo *info; if (cached_methods [kind]) return cached_methods [kind]; name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]); mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF); g_free (name); if (!signature) { MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2); /* void this::stelemref (size_t idx, void* value) */ sig->ret = &mono_defaults.void_class->byval_arg; sig->hasthis = TRUE; sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */ sig->params [1] = &mono_defaults.object_class->byval_arg; signature = sig; } #ifndef DISABLE_JIT param_names [0] = "index"; param_names [1] = "value"; mono_mb_set_param_names (mb, param_names); /*For now simply call plain old stelemref*/ switch (kind) { case STELEMREF_OBJECT: /* ldelema (implicit bound check) */ load_array_element_address (mb); /* do_store */ mono_mb_emit_ldarg (mb, 2); mono_mb_emit_byte (mb, CEE_STIND_REF); mono_mb_emit_byte (mb, CEE_RET); break; case STELEMREF_COMPLEX: /* if (!value) goto store; if (!mono_object_isinst (value, aklass)) goto do_exception; do_store: *array_slot_addr = value; do_exception: throw new ArrayTypeMismatchException (); */ aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg); #if 0 { /*Use this to debug/record stores that are going thru the slow path*/ MonoMethodSignature *csig; csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3); csig->ret = &mono_defaults.void_class->byval_arg; csig->params [0] = &mono_defaults.object_class->byval_arg; csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */ csig->params [2] = &mono_defaults.object_class->byval_arg; mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldarg (mb, 1); mono_mb_emit_ldarg (mb, 2); mono_mb_emit_native_call (mb, csig, record_slot_vstore); } #endif /* ldelema (implicit bound check) */ load_array_element_address (mb); mono_mb_emit_stloc (mb, array_slot_addr); /* if (!value) goto do_store */ mono_mb_emit_ldarg (mb, 2); b1 = mono_mb_emit_branch (mb, CEE_BRFALSE); /* aklass = array->vtable->klass->element_class */ load_array_class (mb, aklass); /*if (mono_object_isinst (value, aklass)) */ mono_mb_emit_ldarg (mb, 2); mono_mb_emit_ldloc (mb, aklass); mono_mb_emit_icall (mb, mono_object_isinst); b2 = mono_mb_emit_branch (mb, CEE_BRFALSE); /* do_store: */ mono_mb_patch_branch (mb, b1); mono_mb_emit_ldloc (mb, array_slot_addr); mono_mb_emit_ldarg (mb, 2); mono_mb_emit_byte (mb, CEE_STIND_REF); mono_mb_emit_byte (mb, CEE_RET); /* do_exception: */ mono_mb_patch_branch (mb, b2); mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL); break; case STELEMREF_SEALED_CLASS: /* if (!value) goto store; aklass = array->vtable->klass->element_class; vklass = value->vtable->klass; if (vklass != aklass) goto do_exception; do_store: *array_slot_addr = value; do_exception: throw new ArrayTypeMismatchException (); */ aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg); /* ldelema (implicit bound check) */ load_array_element_address (mb); mono_mb_emit_stloc (mb, array_slot_addr); /* if (!value) goto do_store */ mono_mb_emit_ldarg (mb, 2); b1 = mono_mb_emit_branch (mb, CEE_BRFALSE); /* aklass = array->vtable->klass->element_class */ load_array_class (mb, aklass); /* vklass = value->vtable->klass */ load_value_class (mb, vklass); /*if (vklass != aklass) goto do_exception; */ mono_mb_emit_ldloc (mb, aklass); mono_mb_emit_ldloc (mb, vklass); b2 = mono_mb_emit_branch (mb, CEE_BNE_UN); /* do_store: */ mono_mb_patch_branch (mb, b1); mono_mb_emit_ldloc (mb, array_slot_addr); mono_mb_emit_ldarg (mb, 2); mono_mb_emit_byte (mb, CEE_STIND_REF); mono_mb_emit_byte (mb, CEE_RET); /* do_exception: */ mono_mb_patch_branch (mb, b2); mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL); break; case STELEMREF_CLASS: /* the method: if (!value) goto do_store; aklass = array->vtable->klass->element_class; vklass = value->vtable->klass; if (vklass->idepth < aklass->idepth) goto do_exception; if (vklass->supertypes [aklass->idepth - 1] != aklass) goto do_exception; do_store: *array_slot_addr = value; return; long: throw new ArrayTypeMismatchException (); */ aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg); /* ldelema (implicit bound check) */ load_array_element_address (mb); mono_mb_emit_stloc (mb, array_slot_addr); /* if (!value) goto do_store */ mono_mb_emit_ldarg (mb, 2); b1 = mono_mb_emit_branch (mb, CEE_BRFALSE); /* aklass = array->vtable->klass->element_class */ load_array_class (mb, aklass); /* vklass = value->vtable->klass */ load_value_class (mb, vklass); /*if (mono_object_isinst (value, aklass)) */ mono_mb_emit_ldarg (mb, 2); mono_mb_emit_ldloc (mb, aklass); mono_mb_emit_icall (mb, mono_object_isinst); b2 = mono_mb_emit_branch (mb, CEE_BRFALSE); /* if (vklass->idepth < aklass->idepth) goto failue */ mono_mb_emit_ldloc (mb, vklass); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth)); mono_mb_emit_byte (mb, CEE_LDIND_U2); mono_mb_emit_ldloc (mb, aklass); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth)); mono_mb_emit_byte (mb, CEE_LDIND_U2); b2 = mono_mb_emit_branch (mb, CEE_BLT_UN); /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */ mono_mb_emit_ldloc (mb, vklass); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldloc (mb, aklass); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth)); mono_mb_emit_byte (mb, CEE_LDIND_U2); mono_mb_emit_icon (mb, 1); mono_mb_emit_byte (mb, CEE_SUB); mono_mb_emit_icon (mb, sizeof (void*)); mono_mb_emit_byte (mb, CEE_MUL); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldloc (mb, aklass); b3 = mono_mb_emit_branch (mb, CEE_BNE_UN); /* do_store: */ mono_mb_patch_branch (mb, b1); mono_mb_emit_ldloc (mb, array_slot_addr); mono_mb_emit_ldarg (mb, 2); mono_mb_emit_byte (mb, CEE_STIND_REF); mono_mb_emit_byte (mb, CEE_RET); /* do_exception: */ mono_mb_patch_branch (mb, b2); mono_mb_patch_branch (mb, b3); mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL); break; case STELEMREF_INTERFACE: /*Mono *klass; MonoVTable *vt; unsigned uiid; if (value == NULL) goto store; klass = array->obj.vtable->klass->element_class; vt = value->vtable; uiid = klass->interface_id; if (uiid > vt->max_interface_id) goto exception; if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) goto exception; store: mono_array_setref (array, index, value); return; exception: mono_raise_exception (mono_get_exception_array_type_mismatch ());*/ array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg); aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg); /* ldelema (implicit bound check) */ load_array_element_address (mb); mono_mb_emit_stloc (mb, array_slot_addr); /* if (!value) goto do_store */ mono_mb_emit_ldarg (mb, 2); b1 = mono_mb_emit_branch (mb, CEE_BRFALSE); /* klass = array->vtable->klass->element_class */ load_array_class (mb, aklass); /* vt = value->vtable */ mono_mb_emit_ldarg (mb, 2); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, vtable); /* uiid = klass->interface_id; */ mono_mb_emit_ldloc (mb, aklass); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, interface_id)); mono_mb_emit_byte (mb, CEE_LDIND_U2); mono_mb_emit_stloc (mb, uiid); /*if (uiid > vt->max_interface_id)*/ mono_mb_emit_ldloc (mb, uiid); mono_mb_emit_ldloc (mb, vtable); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, max_interface_id)); mono_mb_emit_byte (mb, CEE_LDIND_U2); b2 = mono_mb_emit_branch (mb, CEE_BGT_UN); /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */ /*vt->interface_bitmap*/ mono_mb_emit_ldloc (mb, vtable); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, interface_bitmap)); mono_mb_emit_byte (mb, CEE_LDIND_I); /*uiid >> 3*/ mono_mb_emit_ldloc (mb, uiid); mono_mb_emit_icon (mb, 3); mono_mb_emit_byte (mb, CEE_SHR_UN); /*vt->interface_bitmap [(uiid) >> 3]*/ mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/ mono_mb_emit_byte (mb, CEE_LDIND_U1); /*(1 << ((uiid)&7)))*/ mono_mb_emit_icon (mb, 1); mono_mb_emit_ldloc (mb, uiid); mono_mb_emit_icon (mb, 7); mono_mb_emit_byte (mb, CEE_AND); mono_mb_emit_byte (mb, CEE_SHL); /*bitwise and the whole thing*/ mono_mb_emit_byte (mb, CEE_AND); b3 = mono_mb_emit_branch (mb, CEE_BRFALSE); /* do_store: */ mono_mb_patch_branch (mb, b1); mono_mb_emit_ldloc (mb, array_slot_addr); mono_mb_emit_ldarg (mb, 2); mono_mb_emit_byte (mb, CEE_STIND_REF); mono_mb_emit_byte (mb, CEE_RET); /* do_exception: */ mono_mb_patch_branch (mb, b2); mono_mb_patch_branch (mb, b3); mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL); break; default: mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldarg (mb, 1); mono_mb_emit_ldarg (mb, 2); mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL); mono_mb_emit_byte (mb, CEE_RET); g_assert (0); } #endif /* DISABLE_JIT */ res = mono_mb_create_method (mb, signature, 4); res->flags |= METHOD_ATTRIBUTE_VIRTUAL; info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF); info->d.virtual_stelemref.kind = kind; mono_marshal_set_wrapper_info (res, info); mono_marshal_lock (); if (!cached_methods [kind]) { cached_methods [kind] = res; mono_marshal_unlock (); } else { mono_marshal_unlock (); mono_free_method (res); } mono_mb_free (mb); return cached_methods [kind]; } MonoMethod* mono_marshal_get_virtual_stelemref (MonoClass *array_class) { int kind; g_assert (array_class->rank == 1); kind = get_virtual_stelemref_kind (array_class->element_class); return get_virtual_stelemref_wrapper (kind); } MonoMethod** mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers) { MonoMethod **res; int i; *nwrappers = STELEMREF_KIND_COUNT; res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*)); for (i = 0; i < STELEMREF_KIND_COUNT; ++i) res [i] = get_virtual_stelemref_wrapper (i); return res; } /* * The wrapper info for the wrapper is a WrapperInfo structure. */ MonoMethod* mono_marshal_get_stelemref () { static MonoMethod* ret = NULL; MonoMethodSignature *sig; MonoMethodBuilder *mb; WrapperInfo *info; guint32 b1, b2, b3, b4; guint32 copy_pos; int aklass, vklass; int array_slot_addr; if (ret) return ret; mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF); sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3); /* void stelemref (void* array, int idx, void* value) */ sig->ret = &mono_defaults.void_class->byval_arg; sig->params [0] = &mono_defaults.object_class->byval_arg; sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */ sig->params [2] = &mono_defaults.object_class->byval_arg; #ifndef DISABLE_JIT aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg); /* the method: if (!value) goto store; aklass = array->vtable->klass->element_class; vklass = value->vtable->klass; if (vklass->idepth < aklass->idepth) goto long; if (vklass->supertypes [aklass->idepth - 1] != aklass) goto long; store: *array_slot_addr = value; return; long: if (mono_object_isinst (value, aklass)) goto store; throw new ArrayTypeMismatchException (); */ /* ldelema (implicit bound check) */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldarg (mb, 1); mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class); mono_mb_emit_stloc (mb, array_slot_addr); /* if (!value) goto do_store */ mono_mb_emit_ldarg (mb, 2); b1 = mono_mb_emit_branch (mb, CEE_BRFALSE); /* aklass = array->vtable->klass->element_class */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, aklass); /* vklass = value->vtable->klass */ mono_mb_emit_ldarg (mb, 2); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, vklass); /* if (vklass->idepth < aklass->idepth) goto failue */ mono_mb_emit_ldloc (mb, vklass); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth)); mono_mb_emit_byte (mb, CEE_LDIND_U2); mono_mb_emit_ldloc (mb, aklass); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth)); mono_mb_emit_byte (mb, CEE_LDIND_U2); b2 = mono_mb_emit_branch (mb, CEE_BLT_UN); /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */ mono_mb_emit_ldloc (mb, vklass); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldloc (mb, aklass); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth)); mono_mb_emit_byte (mb, CEE_LDIND_U2); mono_mb_emit_icon (mb, 1); mono_mb_emit_byte (mb, CEE_SUB); mono_mb_emit_icon (mb, sizeof (void*)); mono_mb_emit_byte (mb, CEE_MUL); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_ldloc (mb, aklass); b3 = mono_mb_emit_branch (mb, CEE_BNE_UN); copy_pos = mono_mb_get_label (mb); /* do_store */ mono_mb_patch_branch (mb, b1); mono_mb_emit_ldloc (mb, array_slot_addr); mono_mb_emit_ldarg (mb, 2); mono_mb_emit_byte (mb, CEE_STIND_REF); mono_mb_emit_byte (mb, CEE_RET); /* the hard way */ mono_mb_patch_branch (mb, b2); mono_mb_patch_branch (mb, b3); mono_mb_emit_ldarg (mb, 2); mono_mb_emit_ldloc (mb, aklass); mono_mb_emit_icall (mb, mono_object_isinst); b4 = mono_mb_emit_branch (mb, CEE_BRTRUE); mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4)); mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL); mono_mb_emit_byte (mb, CEE_RET); #endif ret = mono_mb_create_method (mb, sig, 4); mono_mb_free (mb); info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_NONE); mono_marshal_set_wrapper_info (ret, info); return ret; } /* * mono_marshal_get_gsharedvt_in_wrapper: * * This wrapper handles calls from normal code to gsharedvt code. * * The wrapper info for the wrapper is a WrapperInfo structure. */ MonoMethod* mono_marshal_get_gsharedvt_in_wrapper (void) { static MonoMethod* ret = NULL; MonoMethodSignature *sig; MonoMethodBuilder *mb; WrapperInfo *info; if (ret) return ret; mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN); sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0); sig->ret = &mono_defaults.void_class->byval_arg; #ifndef DISABLE_JIT /* * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works. */ mono_mb_emit_byte (mb, CEE_RET); #endif ret = mono_mb_create_method (mb, sig, 4); mono_mb_free (mb); info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_GSHAREDVT_IN); mono_marshal_set_wrapper_info (ret, info); return ret; } /* * mono_marshal_get_gsharedvt_out_wrapper: * * This wrapper handles calls from gsharedvt code to normal code. * * The wrapper info for the wrapper is a WrapperInfo structure. */ MonoMethod* mono_marshal_get_gsharedvt_out_wrapper (void) { static MonoMethod* ret = NULL; MonoMethodSignature *sig; MonoMethodBuilder *mb; WrapperInfo *info; if (ret) return ret; mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN); sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0); sig->ret = &mono_defaults.void_class->byval_arg; #ifndef DISABLE_JIT /* * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works. */ mono_mb_emit_byte (mb, CEE_RET); #endif ret = mono_mb_create_method (mb, sig, 4); mono_mb_free (mb); info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_GSHAREDVT_OUT); mono_marshal_set_wrapper_info (ret, info); return ret; } typedef struct { int rank; int elem_size; MonoMethod *method; } ArrayElemAddr; /* LOCKING: vars accessed under the marshal lock */ static ArrayElemAddr *elem_addr_cache = NULL; static int elem_addr_cache_size = 0; static int elem_addr_cache_next = 0; /** * mono_marshal_get_array_address: * @rank: rank of the array type * @elem_size: size in bytes of an element of an array. * * Returns a MonoMethd that implements the code to get the address * of an element in a multi-dimenasional array of @rank dimensions. * The returned method takes an array as the first argument and then * @rank indexes for the @rank dimensions. */ MonoMethod* mono_marshal_get_array_address (int rank, int elem_size) { MonoMethod *ret; MonoMethodBuilder *mb; MonoMethodSignature *sig; int i, bounds, ind, realidx; int branch_pos, *branch_positions; int cached; ret = NULL; mono_marshal_lock (); for (i = 0; i < elem_addr_cache_next; ++i) { if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) { ret = elem_addr_cache [i].method; break; } } mono_marshal_unlock (); if (ret) return ret; branch_positions = g_new0 (int, rank); sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank); /* void* address (void* array, int idx0, int idx1, int idx2, ...) */ sig->ret = &mono_defaults.int_class->byval_arg; sig->params [0] = &mono_defaults.object_class->byval_arg; for (i = 0; i < rank; ++i) { sig->params [i + 1] = &mono_defaults.int32_class->byval_arg; } mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED); #ifndef DISABLE_JIT bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg); ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg); realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg); /* bounds = array->bounds; */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds)); mono_mb_emit_byte (mb, CEE_LDIND_I); mono_mb_emit_stloc (mb, bounds); /* ind is the overall element index, realidx is the partial index in a single dimension */ /* ind = idx0 - bounds [0].lower_bound */ mono_mb_emit_ldarg (mb, 1); mono_mb_emit_ldloc (mb, bounds); mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_LDIND_I4); mono_mb_emit_byte (mb, CEE_SUB); mono_mb_emit_stloc (mb, ind); /* if (ind >= bounds [0].length) goto exeception; */ mono_mb_emit_ldloc (mb, ind); mono_mb_emit_ldloc (mb, bounds); mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_LDIND_I4); /* note that we use unsigned comparison */ branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN); /* For large ranks (> 4?) use a loop n IL later to reduce code size. * We could also decide to ignore the passed elem_size and get it * from the array object, to reduce the number of methods we generate: * the additional cost is 3 memory loads and a non-immediate mul. */ for (i = 1; i < rank; ++i) { /* realidx = idxi - bounds [i].lower_bound */ mono_mb_emit_ldarg (mb, 1 + i); mono_mb_emit_ldloc (mb, bounds); mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_LDIND_I4); mono_mb_emit_byte (mb, CEE_SUB); mono_mb_emit_stloc (mb, realidx); /* if (realidx >= bounds [i].length) goto exeception; */ mono_mb_emit_ldloc (mb, realidx); mono_mb_emit_ldloc (mb, bounds); mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_LDIND_I4); branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN); /* ind = ind * bounds [i].length + realidx */ mono_mb_emit_ldloc (mb, ind); mono_mb_emit_ldloc (mb, bounds); mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length)); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_LDIND_I4); mono_mb_emit_byte (mb, CEE_MUL); mono_mb_emit_ldloc (mb, realidx); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_stloc (mb, ind); } /* return array->vector + ind * element_size */ mono_mb_emit_ldarg (mb, 0); mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector)); mono_mb_emit_ldloc (mb, ind); mono_mb_emit_icon (mb, elem_size); mono_mb_emit_byte (mb, CEE_MUL); mono_mb_emit_byte (mb, CEE_ADD); mono_mb_emit_byte (mb, CEE_RET); /* patch the branches to get here and throw */ for (i = 1; i < rank; ++i) { mono_mb_patch_branch (mb, branch_positions [i]); } mono_mb_patch_branch (mb, branch_pos); /* throw exception */ mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL); g_free (branch_positions); #endif /* DISABLE_JIT */ ret = mono_mb_create_method (mb, sig, 4); mono_mb_free (mb); /* cache the result */ cached = 0; mono_marshal_lock (); for (i = 0; i < elem_addr_cache_next; ++i) { if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) { /* FIXME: free ret */ ret = elem_addr_cache [i].method; cached = TRUE; break; } } if (!cached) { WrapperInfo *info; if (elem_addr_cache_next >= elem_addr_cache_size) { int new_size = elem_addr_cache_size + 4; ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size); memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr)); g_free (elem_addr_cache); elem_addr_cache = new_array; elem_addr_cache_size = new_size; } elem_addr_cache [elem_addr_cache_next].rank = rank; elem_addr_cache [elem_addr_cache_next].elem_size = elem_size; elem_addr_cache [elem_addr_cache_next].method = ret; elem_addr_cache_next ++; info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_ELEMENT_ADDR); info->d.element_addr.rank = rank; info->d.element_addr.elem_size = elem_size; mono_marshal_set_wrapper_info (ret, info); } mono_marshal_unlock (); return ret; } /* * mono_marshal_get_array_accessor_wrapper: * * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method. */ MonoMethod * mono_marshal_get_array_accessor_wrapper (MonoMethod *method) { MonoMethodSignature *sig; MonoMethodBuilder *mb; MonoMethod *res; GHashTable *cache; int i; MonoGenericContext *ctx = NULL; MonoMethod *orig_method = NULL; MonoGenericContainer *container = NULL; WrapperInfo *info; /* * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics * inside runtime invoke wrappers, thereby making the wrappers not unshareable. * FIXME: Use generic methods. */ /* * Check cache */ if (ctx) { cache = NULL; g_assert_not_reached (); } else { cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, method))) return res; } sig = signature_dup (method->klass->image, mono_method_signature (method)); sig->pinvoke = 0; mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN); #ifndef DISABLE_JIT /* Call the method */ if (sig->hasthis) mono_mb_emit_ldarg (mb, 0); for (i = 0; i < sig->param_count; i++) mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE)); if (ctx) mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method (method, &container->context), NULL); else mono_mb_emit_managed_call (mb, method, NULL); mono_mb_emit_byte (mb, CEE_RET); #endif if (ctx) { MonoMethod *def; def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16); res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method); } else { res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ARRAY_ACCESSOR); info->d.array_accessor.method = method; mono_marshal_set_wrapper_info (res, info); } mono_mb_free (mb); return res; } void* mono_marshal_alloc (gulong size) { gpointer res; #ifdef HOST_WIN32 res = CoTaskMemAlloc (size); #else res = g_try_malloc ((gulong)size); if (!res) mono_gc_out_of_memory ((gulong)size); #endif return res; } void mono_marshal_free (gpointer ptr) { #ifdef HOST_WIN32 CoTaskMemFree (ptr); #else g_free (ptr); #endif } void mono_marshal_free_array (gpointer *ptr, int size) { int i; if (!ptr) return; for (i = 0; i < size; i++) if (ptr [i]) g_free (ptr [i]); } void * mono_marshal_string_to_utf16 (MonoString *s) { return s ? mono_string_chars (s) : NULL; } static void * mono_marshal_string_to_utf16_copy (MonoString *s) { if (s == NULL) { return NULL; } else { gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2); memcpy (res, mono_string_chars (s), mono_string_length (s) * 2); res [mono_string_length (s)] = 0; return res; } } /** * mono_marshal_set_last_error: * * This function is invoked to set the last error value from a P/Invoke call * which has SetLastError set. */ void mono_marshal_set_last_error (void) { #ifdef WIN32 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ())); #else mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno)); #endif } static void mono_marshal_set_last_error_windows (int error) { #ifdef WIN32 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error)); #endif } void ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index, gpointer dest, gint32 length) { int element_size; void *source_addr; MONO_ARCH_SAVE_REGS; MONO_CHECK_ARG_NULL (src); MONO_CHECK_ARG_NULL (dest); if (src->obj.vtable->klass->rank != 1) mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional")); if (start_index < 0) mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0")); if (length < 0) mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0")); if (start_index + length > mono_array_length (src)) mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length")); element_size = mono_array_element_size (src->obj.vtable->klass); /* no references should be involved */ source_addr = mono_array_addr_with_size_fast (src, element_size, start_index); memcpy (dest, source_addr, length * element_size); } void ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index, MonoArray *dest, gint32 length) { int element_size; void *dest_addr; MONO_ARCH_SAVE_REGS; MONO_CHECK_ARG_NULL (src); MONO_CHECK_ARG_NULL (dest); if (dest->obj.vtable->klass->rank != 1) mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional")); if (start_index < 0) mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0")); if (length < 0) mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0")); if (start_index + length > mono_array_length (dest)) mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length")); element_size = mono_array_element_size (dest->obj.vtable->klass); /* no references should be involved */ dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index); memcpy (dest_addr, src, length * element_size); } MonoString * ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr) { MONO_ARCH_SAVE_REGS; if (ptr == NULL) return NULL; else return mono_string_new (mono_domain_get (), ptr); } MonoString * ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len) { MONO_ARCH_SAVE_REGS; if (ptr == NULL) { mono_raise_exception (mono_get_exception_argument_null ("ptr")); g_assert_not_reached (); return NULL; } else { return mono_string_new_len (mono_domain_get (), ptr, len); } } MonoString * ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr) { MonoDomain *domain = mono_domain_get (); int len = 0; guint16 *t = ptr; MONO_ARCH_SAVE_REGS; if (ptr == NULL) return NULL; while (*t++) len++; return mono_string_new_utf16 (domain, ptr, len); } MonoString * ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len) { MonoDomain *domain = mono_domain_get (); MONO_ARCH_SAVE_REGS; if (ptr == NULL) { mono_raise_exception (mono_get_exception_argument_null ("ptr")); g_assert_not_reached (); return NULL; } else { return mono_string_new_utf16 (domain, ptr, len); } } guint32 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void) { MONO_ARCH_SAVE_REGS; return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id))); } guint32 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype) { MonoClass *klass; MonoType *type; guint32 layout; MONO_ARCH_SAVE_REGS; MONO_CHECK_ARG_NULL (rtype); type = rtype->type; klass = mono_class_from_mono_type (type); if (!mono_class_init (klass)) mono_raise_exception (mono_class_get_exception_for_failure (klass)); layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK); if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) { gchar *msg; MonoException *exc; msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name); exc = mono_get_exception_argument ("t", msg); g_free (msg); mono_raise_exception (exc); } return mono_class_native_size (klass, NULL); } void ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old) { MonoMethod *method; gpointer pa [3]; MONO_ARCH_SAVE_REGS; MONO_CHECK_ARG_NULL (obj); MONO_CHECK_ARG_NULL (dst); method = mono_marshal_get_struct_to_ptr (obj->vtable->klass); pa [0] = obj; pa [1] = &dst; pa [2] = &delete_old; mono_runtime_invoke (method, NULL, pa, NULL); } static void ptr_to_structure (gpointer src, MonoObject *dst) { MonoMethod *method; gpointer pa [2]; method = mono_marshal_get_ptr_to_struct (dst->vtable->klass); pa [0] = &src; pa [1] = dst; mono_runtime_invoke (method, NULL, pa, NULL); } void ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst) { MonoType *t; MONO_ARCH_SAVE_REGS; MONO_CHECK_ARG_NULL (src); MONO_CHECK_ARG_NULL (dst); t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass)); if (t->type == MONO_TYPE_VALUETYPE) { MonoException *exc; gchar *tmp; tmp = g_strdup_printf ("Destination is a boxed value type."); exc = mono_get_exception_argument ("dst", tmp); g_free (tmp); mono_raise_exception (exc); return; } ptr_to_structure (src, dst); } MonoObject * ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type) { MonoClass *klass; MonoDomain *domain = mono_domain_get (); MonoObject *res; MONO_ARCH_SAVE_REGS; if (src == NULL) return NULL; MONO_CHECK_ARG_NULL (type); klass = mono_class_from_mono_type (type->type); if (!mono_class_init (klass)) mono_raise_exception (mono_class_get_exception_for_failure (klass)); res = mono_object_new (domain, klass); ptr_to_structure (src, res); return res; } int ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name) { MonoMarshalType *info; MonoClass *klass; char *fname; int match_index = -1; MONO_ARCH_SAVE_REGS; MONO_CHECK_ARG_NULL (type); MONO_CHECK_ARG_NULL (field_name); fname = mono_string_to_utf8 (field_name); klass = mono_class_from_mono_type (type->type); if (!mono_class_init (klass)) mono_raise_exception (mono_class_get_exception_for_failure (klass)); while (klass && match_index == -1) { MonoClassField* field; int i = 0; gpointer iter = NULL; while ((field = mono_class_get_fields (klass, &iter))) { if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) continue; if (!strcmp (fname, mono_field_get_name (field))) { match_index = i; break; } i ++; } if (match_index == -1) klass = klass->parent; } g_free (fname); if(match_index == -1) { MonoException* exc; gchar *tmp; /* Get back original class instance */ klass = mono_class_from_mono_type (type->type); tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name); exc = mono_get_exception_argument ("fieldName", tmp); g_free (tmp); mono_raise_exception ((MonoException*)exc); } info = mono_marshal_load_type_info (klass); return info->fields [match_index].offset; } gpointer ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string) { #ifdef HOST_WIN32 char* tres, *ret; size_t len; tres = mono_string_to_utf8 (string); if (!tres) return tres; len = strlen (tres) + 1; ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len); memcpy (ret, tres, len); g_free (tres); return ret; #else return mono_string_to_utf8 (string); #endif } gpointer ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string) { MONO_ARCH_SAVE_REGS; if (string == NULL) return NULL; else { #ifdef TARGET_WIN32 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal ((mono_string_length (string) + 1) * 2); #else gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2); #endif memcpy (res, mono_string_chars (string), mono_string_length (string) * 2); res [mono_string_length (string)] = 0; return res; } } static void mono_struct_delete_old (MonoClass *klass, char *ptr) { MonoMarshalType *info; int i; info = mono_marshal_load_type_info (klass); for (i = 0; i < info->num_fields; i++) { MonoMarshalNative ntype; MonoMarshalConv conv; MonoType *ftype = info->fields [i].field->type; char *cpos; if (ftype->attrs & FIELD_ATTRIBUTE_STATIC) continue; ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv); cpos = ptr + info->fields [i].offset; switch (conv) { case MONO_MARSHAL_CONV_NONE: if (MONO_TYPE_ISSTRUCT (ftype)) { mono_struct_delete_old (ftype->data.klass, cpos); continue; } break; case MONO_MARSHAL_CONV_STR_LPWSTR: /* We assume this field points inside a MonoString */ break; case MONO_MARSHAL_CONV_STR_LPTSTR: #ifdef TARGET_WIN32 /* We assume this field points inside a MonoString * on Win32 */ break; #endif case MONO_MARSHAL_CONV_STR_LPSTR: case MONO_MARSHAL_CONV_STR_BSTR: case MONO_MARSHAL_CONV_STR_ANSIBSTR: case MONO_MARSHAL_CONV_STR_TBSTR: mono_marshal_free (*(gpointer *)cpos); break; default: continue; } } } void ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type) { MonoClass *klass; MONO_ARCH_SAVE_REGS; MONO_CHECK_ARG_NULL (src); MONO_CHECK_ARG_NULL (type); klass = mono_class_from_mono_type (type->type); if (!mono_class_init (klass)) mono_raise_exception (mono_class_get_exception_for_failure (klass)); mono_struct_delete_old (klass, (char *)src); } void* ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size) { gpointer res; MONO_ARCH_SAVE_REGS; if ((gulong)size == 0) /* This returns a valid pointer for size 0 on MS.NET */ size = 4; #ifdef HOST_WIN32 res = GlobalAlloc (GMEM_FIXED, (gulong)size); #else res = g_try_malloc ((gulong)size); #endif if (!res) mono_gc_out_of_memory ((gulong)size); return res; } gpointer ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size) { gpointer res; if (ptr == NULL) { mono_gc_out_of_memory ((gulong)size); return NULL; } #ifdef HOST_WIN32 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE); #else res = g_try_realloc (ptr, (gulong)size); #endif if (!res) mono_gc_out_of_memory ((gulong)size); return res; } void ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr) { MONO_ARCH_SAVE_REGS; #ifdef HOST_WIN32 GlobalFree (ptr); #else g_free (ptr); #endif } void* ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size) { MONO_ARCH_SAVE_REGS; #ifdef HOST_WIN32 return CoTaskMemAlloc (size); #else return g_try_malloc ((gulong)size); #endif } void ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr) { MONO_ARCH_SAVE_REGS; #ifdef HOST_WIN32 CoTaskMemFree (ptr); #else g_free (ptr); #endif } gpointer ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size) { MONO_ARCH_SAVE_REGS; #ifdef HOST_WIN32 return CoTaskMemRealloc (ptr, size); #else return g_try_realloc (ptr, (gulong)size); #endif } void* ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index) { return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index); } MonoDelegate* ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type) { MonoClass *klass = mono_type_get_class (type->type); if (!mono_class_init (klass)) mono_raise_exception (mono_class_get_exception_for_failure (klass)); return mono_ftnptr_to_delegate (klass, ftn); } /** * mono_marshal_is_loading_type_info: * * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this * thread. */ static gboolean mono_marshal_is_loading_type_info (MonoClass *klass) { GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id); return g_slist_find (loads_list, klass) != NULL; } /** * mono_marshal_load_type_info: * * Initialize klass->marshal_info using information from metadata. This function can * recursively call itself, and the caller is responsible to avoid that by calling * mono_marshal_is_loading_type_info () beforehand. * * LOCKING: Acquires the loader lock. */ MonoMarshalType * mono_marshal_load_type_info (MonoClass* klass) { int j, count = 0; guint32 native_size = 0, min_align = 1, packing; MonoMarshalType *info; MonoClassField* field; gpointer iter; guint32 layout; GSList *loads_list; g_assert (klass != NULL); if (klass->marshal_info) return klass->marshal_info; if (!klass->inited) mono_class_init (klass); if (klass->marshal_info) return klass->marshal_info; /* * This function can recursively call itself, so we keep the list of classes which are * under initialization in a TLS list. */ g_assert (!mono_marshal_is_loading_type_info (klass)); loads_list = mono_native_tls_get_value (load_type_info_tls_id); loads_list = g_slist_prepend (loads_list, klass); mono_native_tls_set_value (load_type_info_tls_id, loads_list); iter = NULL; while ((field = mono_class_get_fields (klass, &iter))) { if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) continue; if (mono_field_is_deleted (field)) continue; count++; } layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK; /* The mempool is protected by the loader lock */ info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count); info->num_fields = count; /* Try to find a size for this type in metadata */ mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size); if (klass->parent) { int parent_size = mono_class_native_size (klass->parent, NULL); /* Add parent size to real size */ native_size += parent_size; info->native_size = parent_size; } packing = klass->packing_size ? klass->packing_size : 8; iter = NULL; j = 0; while ((field = mono_class_get_fields (klass, &iter))) { int size; guint32 align; if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) continue; if (mono_field_is_deleted (field)) continue; if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL) mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1, NULL, NULL, &info->fields [j].mspec); info->fields [j].field = field; if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) && (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) { /* This field is a hack inserted by MCS to empty structures */ continue; } switch (layout) { case TYPE_ATTRIBUTE_AUTO_LAYOUT: case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT: size = mono_marshal_type_size (field->type, info->fields [j].mspec, &align, TRUE, klass->unicode); align = klass->packing_size ? MIN (klass->packing_size, align): align; min_align = MAX (align, min_align); info->fields [j].offset = info->native_size; info->fields [j].offset += align - 1; info->fields [j].offset &= ~(align - 1); info->native_size = info->fields [j].offset + size; break; case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT: size = mono_marshal_type_size (field->type, info->fields [j].mspec, &align, TRUE, klass->unicode); min_align = MAX (align, min_align); info->fields [j].offset = field->offset - sizeof (MonoObject); info->native_size = MAX (info->native_size, info->fields [j].offset + size); break; } j++; } if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) { info->native_size = MAX (native_size, info->native_size); /* * If the provided Size is equal or larger than the calculated size, and there * was no Pack attribute, we set min_align to 1 to avoid native_size being increased */ if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) { if (native_size && native_size == info->native_size && klass->packing_size == 0) min_align = 1; else min_align = MIN (min_align, packing); } } if (info->native_size & (min_align - 1)) { info->native_size += min_align - 1; info->native_size &= ~(min_align - 1); } info->min_align = min_align; /* Update the class's blittable info, if the layouts don't match */ if (info->native_size != mono_class_value_size (klass, NULL)) klass->blittable = FALSE; /* If this is an array type, ensure that we have element info */ if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) { mono_marshal_load_type_info (klass->element_class); } loads_list = mono_native_tls_get_value (load_type_info_tls_id); loads_list = g_slist_remove (loads_list, klass); mono_native_tls_set_value (load_type_info_tls_id, loads_list); mono_marshal_lock (); if (!klass->marshal_info) { /*We do double-checking locking on marshal_info */ mono_memory_barrier (); klass->marshal_info = info; } mono_marshal_unlock (); return klass->marshal_info; } /** * mono_class_native_size: * @klass: a class * * Returns: the native size of an object instance (when marshaled * to unmanaged code) */ gint32 mono_class_native_size (MonoClass *klass, guint32 *align) { if (!klass->marshal_info) { if (mono_marshal_is_loading_type_info (klass)) { if (align) *align = 0; return 0; } else { mono_marshal_load_type_info (klass); } } if (align) *align = klass->marshal_info->min_align; return klass->marshal_info->native_size; } /* __alignof__ returns the preferred alignment of values not the actual alignment used by the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */ #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x) /* * mono_type_native_stack_size: * @t: the type to return the size it uses on the stack * * Returns: the number of bytes required to hold an instance of this * type on the native stack */ int mono_type_native_stack_size (MonoType *t, guint32 *align) { guint32 tmp; g_assert (t != NULL); if (!align) align = &tmp; if (t->byref) { *align = sizeof (gpointer); return sizeof (gpointer); } switch (t->type){ case MONO_TYPE_BOOLEAN: case MONO_TYPE_CHAR: case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_I4: case MONO_TYPE_U4: *align = 4; return 4; case MONO_TYPE_I: case MONO_TYPE_U: case MONO_TYPE_STRING: case MONO_TYPE_OBJECT: case MONO_TYPE_CLASS: case MONO_TYPE_SZARRAY: case MONO_TYPE_PTR: case MONO_TYPE_FNPTR: case MONO_TYPE_ARRAY: *align = sizeof (gpointer); return sizeof (gpointer); case MONO_TYPE_R4: *align = 4; return 4; case MONO_TYPE_R8: *align = ALIGNMENT (gdouble); return 8; case MONO_TYPE_I8: case MONO_TYPE_U8: *align = ALIGNMENT (glong); return 8; case MONO_TYPE_GENERICINST: if (!mono_type_generic_inst_is_valuetype (t)) { *align = sizeof (gpointer); return sizeof (gpointer); } /* Fall through */ case MONO_TYPE_TYPEDBYREF: case MONO_TYPE_VALUETYPE: { guint32 size; MonoClass *klass = mono_class_from_mono_type (t); if (klass->enumtype) return mono_type_native_stack_size (mono_class_enum_basetype (klass), align); else { size = mono_class_native_size (klass, align); *align = *align + 3; *align &= ~3; size += 3; size &= ~3; return size; } } default: g_error ("type 0x%02x unknown", t->type); } return 0; } gint32 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align, gboolean as_field, gboolean unicode) { MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL); MonoClass *klass; switch (native_type) { case MONO_NATIVE_BOOLEAN: *align = 4; return 4; case MONO_NATIVE_I1: case MONO_NATIVE_U1: *align = 1; return 1; case MONO_NATIVE_I2: case MONO_NATIVE_U2: case MONO_NATIVE_VARIANTBOOL: *align = 2; return 2; case MONO_NATIVE_I4: case MONO_NATIVE_U4: case MONO_NATIVE_ERROR: *align = 4; return 4; case MONO_NATIVE_I8: case MONO_NATIVE_U8: *align = ALIGNMENT(guint64); return 8; case MONO_NATIVE_R4: *align = 4; return 4; case MONO_NATIVE_R8: *align = ALIGNMENT(double); return 8; case MONO_NATIVE_INT: case MONO_NATIVE_UINT: case MONO_NATIVE_LPSTR: case MONO_NATIVE_LPWSTR: case MONO_NATIVE_LPTSTR: case MONO_NATIVE_BSTR: case MONO_NATIVE_ANSIBSTR: case MONO_NATIVE_TBSTR: case MONO_NATIVE_LPARRAY: case MONO_NATIVE_SAFEARRAY: case MONO_NATIVE_IUNKNOWN: case MONO_NATIVE_IDISPATCH: case MONO_NATIVE_INTERFACE: case MONO_NATIVE_ASANY: case MONO_NATIVE_FUNC: case MONO_NATIVE_LPSTRUCT: *align = ALIGNMENT(gpointer); return sizeof (gpointer); case MONO_NATIVE_STRUCT: klass = mono_class_from_mono_type (type); if (klass == mono_defaults.object_class && (mspec && mspec->native == MONO_NATIVE_STRUCT)) { *align = 16; return 16; } return mono_class_native_size (klass, align); case MONO_NATIVE_BYVALTSTR: { int esize = unicode ? 2: 1; g_assert (mspec); *align = esize; return mspec->data.array_data.num_elem * esize; } case MONO_NATIVE_BYVALARRAY: { // FIXME: Have to consider ArraySubType int esize; klass = mono_class_from_mono_type (type); if (klass->element_class == mono_defaults.char_class) { esize = unicode ? 2 : 1; *align = esize; } else { esize = mono_class_native_size (klass->element_class, align); } g_assert (mspec); return mspec->data.array_data.num_elem * esize; } case MONO_NATIVE_CUSTOM: *align = sizeof (gpointer); return sizeof (gpointer); break; case MONO_NATIVE_CURRENCY: case MONO_NATIVE_VBBYREFSTR: default: g_error ("native type %02x not implemented", native_type); break; } g_assert_not_reached (); return 0; } gpointer mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs) { MonoType *t; MonoClass *klass; if (o == NULL) return NULL; t = &o->vtable->klass->byval_arg; switch (t->type) { case MONO_TYPE_I4: case MONO_TYPE_U4: case MONO_TYPE_PTR: case MONO_TYPE_I1: case MONO_TYPE_U1: case MONO_TYPE_BOOLEAN: case MONO_TYPE_I2: case MONO_TYPE_U2: case MONO_TYPE_CHAR: case MONO_TYPE_I8: case MONO_TYPE_U8: case MONO_TYPE_R4: case MONO_TYPE_R8: return mono_object_unbox (o); break; case MONO_TYPE_STRING: switch (string_encoding) { case MONO_NATIVE_LPWSTR: return mono_marshal_string_to_utf16_copy ((MonoString*)o); break; case MONO_NATIVE_LPSTR: return mono_string_to_lpstr ((MonoString*)o); break; default: g_warning ("marshaling conversion %d not implemented", string_encoding); g_assert_not_reached (); } break; case MONO_TYPE_CLASS: case MONO_TYPE_VALUETYPE: { MonoMethod *method; gpointer pa [3]; gpointer res; MonoBoolean delete_old = FALSE; klass = t->data.klass; if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) break; if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable || klass->enumtype)) return mono_object_unbox (o); res = mono_marshal_alloc (mono_class_native_size (klass, NULL)); if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) { method = mono_marshal_get_struct_to_ptr (o->vtable->klass); pa [0] = o; pa [1] = &res; pa [2] = &delete_old; mono_runtime_invoke (method, NULL, pa, NULL); } return res; } } mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter.")); return NULL; } void mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs) { MonoType *t; MonoClass *klass; if (o == NULL) return; t = &o->vtable->klass->byval_arg; switch (t->type) { case MONO_TYPE_STRING: switch (string_encoding) { case MONO_NATIVE_LPWSTR: case MONO_NATIVE_LPSTR: mono_marshal_free (ptr); break; default: g_warning ("marshaling conversion %d not implemented", string_encoding); g_assert_not_reached (); } break; case MONO_TYPE_CLASS: case MONO_TYPE_VALUETYPE: { klass = t->data.klass; if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable || klass->enumtype)) break; if (param_attrs & PARAM_ATTRIBUTE_OUT) { MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass); gpointer pa [2]; pa [0] = &ptr; pa [1] = o; mono_runtime_invoke (method, NULL, pa, NULL); } if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) { mono_struct_delete_old (klass, ptr); } mono_marshal_free (ptr); break; } default: break; } } MonoMethod * mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method) { MonoMethodSignature *sig, *csig; MonoMethodBuilder *mb; MonoMethod *res; WrapperInfo *info; int i; mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED); mb->method->slot = -1; mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL | METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL; sig = mono_method_signature (method); csig = signature_dup (method->klass->image, sig); csig->generic_param_count = 0; #ifndef DISABLE_JIT mono_mb_emit_ldarg (mb, 0); for (i = 0; i < csig->param_count; i++) mono_mb_emit_ldarg (mb, i + 1); mono_mb_emit_managed_call (mb, method, NULL); mono_mb_emit_byte (mb, CEE_RET); /* We can corlib internal methods */ mb->skip_visibility = TRUE; #endif res = mono_mb_create_method (mb, csig, csig->param_count + 16); info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER); info->d.generic_array_helper.method = method; mono_marshal_set_wrapper_info (res, info); mono_mb_free (mb); return res; } /* * The mono_win32_compat_* functions are implementations of inline * Windows kernel32 APIs, which are DllImport-able under MS.NET, * although not exported by kernel32. * * We map the appropiate kernel32 entries to these functions using * dllmaps declared in the global etc/mono/config. */ void mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length) { if (!dest || !source) return; memcpy (dest, source, length); } void mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill) { memset (dest, fill, length); } void mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length) { if (!dest || !source) return; memmove (dest, source, length); } void mono_win32_compat_ZeroMemory (gpointer dest, gsize length) { memset (dest, 0, length); } void mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask) { int i; guint8 byte; for (i = 0; i < len; ++i) if (buf [i]) break; g_assert (i < len); byte = buf [i]; while (byte && !(byte & 1)) byte >>= 1; g_assert (byte == 1); *byte_offset = i; *bitmask = buf [i]; } MonoMethod * mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method) { MonoMethodBuilder *mb; MonoMethodSignature *sig, *csig; MonoExceptionClause *clause; MonoImage *image; MonoClass *klass; GHashTable *cache; MonoMethod *res; int i, param_count, sig_size, pos_leave; g_assert (method); klass = method->klass; image = method->klass->image; cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL); if ((res = mono_marshal_find_in_cache (cache, method))) return res; sig = mono_method_signature (method); mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED); /* add "this" and exception param */ param_count = sig->param_count + sig->hasthis + 1; /* dup & extend signature */ csig = mono_metadata_signature_alloc (image, param_count); sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *); memcpy (csig, sig, sig_size); csig->param_count = param_count; csig->hasthis = 0; csig->pinvoke = 1; csig->call_convention = MONO_CALL_DEFAULT; if (sig->hasthis) { /* add "this" */ csig->params [0] = &klass->byval_arg; /* move params up by one */ for (i = 0; i < sig->param_count; i++) csig->params [i + 1] = sig->params [i]; } /* setup exception param as byref+[out] */ csig->params [param_count - 1] = mono_metadata_type_dup (image, &mono_defaults.exception_class->byval_arg); csig->params [param_count - 1]->byref = 1; csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT; /* convert struct return to object */ if (MONO_TYPE_ISSTRUCT (sig->ret)) csig->ret = &mono_defaults.object_class->byval_arg; #ifndef DISABLE_JIT /* local 0 (temp for exception object) */ mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg); /* local 1 (temp for result) */ if (!MONO_TYPE_IS_VOID (sig->ret)) mono_mb_add_local (mb, sig->ret); /* clear exception arg */ mono_mb_emit_ldarg (mb, param_count - 1); mono_mb_emit_byte (mb, CEE_LDNULL); mono_mb_emit_byte (mb, CEE_STIND_REF); /* try */ clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause)); clause->try_offset = mono_mb_get_label (mb); /* push method's args */ for (i = 0; i < param_count - 1; i++) { MonoType *type; MonoClass *klass; mono_mb_emit_ldarg (mb, i); /* get the byval type of the param */ klass = mono_class_from_mono_type (csig->params [i]); type = &klass->byval_arg; /* unbox struct args */ if (MONO_TYPE_ISSTRUCT (type)) { mono_mb_emit_op (mb, CEE_UNBOX, klass); /* byref args & and the "this" arg must remain a ptr. Otherwise make a copy of the value type */ if (!(csig->params [i]->byref || (i == 0 && sig->hasthis))) mono_mb_emit_op (mb, CEE_LDOBJ, klass); csig->params [i] = &mono_defaults.object_class->byval_arg; } } /* call */ if (method->flags & METHOD_ATTRIBUTE_VIRTUAL) mono_mb_emit_op (mb, CEE_CALLVIRT, method); else mono_mb_emit_op (mb, CEE_CALL, method); /* save result at local 1 */ if (!MONO_TYPE_IS_VOID (sig->ret)) mono_mb_emit_stloc (mb, 1); pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE); /* catch */ clause->flags = MONO_EXCEPTION_CLAUSE_NONE; clause->try_len = mono_mb_get_pos (mb) - clause->try_offset; clause->data.catch_class = mono_defaults.object_class; clause->handler_offset = mono_mb_get_label (mb); /* store exception at local 0 */ mono_mb_emit_stloc (mb, 0); mono_mb_emit_ldarg (mb, param_count - 1); mono_mb_emit_ldloc (mb, 0); mono_mb_emit_byte (mb, CEE_STIND_REF); mono_mb_emit_branch (mb, CEE_LEAVE); clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset; mono_mb_set_clauses (mb, 1, clause); mono_mb_patch_branch (mb, pos_leave); /* end-try */ if (!MONO_TYPE_IS_VOID (sig->ret)) { mono_mb_emit_ldloc (mb, 1); /* box the return value */ if (MONO_TYPE_ISSTRUCT (sig->ret)) mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret)); } mono_mb_emit_byte (mb, CEE_RET); #endif res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16); mono_mb_free (mb); return res; } /* * mono_marshal_free_dynamic_wrappers: * * Free wrappers of the dynamic method METHOD. */ void mono_marshal_free_dynamic_wrappers (MonoMethod *method) { MonoImage *image = method->klass->image; g_assert (method->dynamic); /* This could be called during shutdown */ if (marshal_mutex_initialized) mono_marshal_lock (); /* * FIXME: We currently leak the wrappers. Freeing them would be tricky as * they could be shared with other methods ? */ if (image->runtime_invoke_direct_cache) g_hash_table_remove (image->runtime_invoke_direct_cache, method); if (image->delegate_abstract_invoke_cache) g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_method_pair_matches_method, method); if (marshal_mutex_initialized) mono_marshal_unlock (); } static gboolean signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data) { SignatureMethodPair *pair = (SignatureMethodPair*)key; MonoMethodSignature *sig = (MonoMethodSignature*)user_data; return mono_metadata_signature_equal (pair->sig, sig); } /* * mono_marshal_free_inflated_wrappers: * * Free wrappers of the inflated method METHOD. */ void mono_marshal_free_inflated_wrappers (MonoMethod *method) { MonoMethodSignature *sig = method->signature; g_assert (method->is_inflated); /* Ignore calls occuring late during cleanup. */ if (!marshal_mutex_initialized) return; mono_marshal_lock (); /* * FIXME: We currently leak the wrappers. Freeing them would be tricky as * they could be shared with other methods ? */ /* * indexed by MonoMethodSignature */ /* FIXME: This could remove unrelated wrappers as well */ if (sig && method->klass->image->delegate_begin_invoke_cache) g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig); if (sig && method->klass->image->delegate_end_invoke_cache) g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig); if (sig && method->klass->image->delegate_invoke_cache) g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig); if (sig && method->klass->image->runtime_invoke_cache) g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig); if (sig && method->klass->image->runtime_invoke_vtype_cache) g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig); /* * indexed by SignatureMethodPair */ if (sig && method->klass->image->delegate_abstract_invoke_cache) g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache, signature_method_pair_matches_signature, (gpointer)sig); /* * indexed by MonoMethod pointers */ if (method->klass->image->runtime_invoke_direct_cache) g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method); if (method->klass->image->managed_wrapper_cache) g_hash_table_remove (method->klass->image->managed_wrapper_cache, method); if (method->klass->image->native_wrapper_cache) g_hash_table_remove (method->klass->image->native_wrapper_cache, method); if (method->klass->image->remoting_invoke_cache) g_hash_table_remove (method->klass->image->remoting_invoke_cache, method); if (method->klass->image->synchronized_cache) g_hash_table_remove (method->klass->image->synchronized_cache, method); if (method->klass->image->unbox_wrapper_cache) g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method); if (method->klass->image->cominterop_invoke_cache) g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method); if (method->klass->image->cominterop_wrapper_cache) g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method); if (method->klass->image->thunk_invoke_cache) g_hash_table_remove (method->klass->image->thunk_invoke_cache, method); if (method->klass->image->native_func_wrapper_aot_cache) g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method); mono_marshal_unlock (); }