2 * aot-runtime.c: mono Ahead of Time compiler
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Zoltan Varga (vargaz@gmail.com)
8 * (C) 2002 Ximian, Inc.
9 * Copyright 2003-2011 Novell, Inc.
10 * Copyright 2011 Xamarin, Inc.
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
15 #include <sys/types.h>
21 #ifdef HAVE_SYS_MMAN_H
30 #ifdef HAVE_EXECINFO_H
37 #ifdef HAVE_SYS_WAIT_H
38 #include <sys/wait.h> /* for WIFEXITED, WEXITSTATUS */
41 #include <mono/metadata/abi-details.h>
42 #include <mono/metadata/tabledefs.h>
43 #include <mono/metadata/class.h>
44 #include <mono/metadata/object.h>
45 #include <mono/metadata/tokentype.h>
46 #include <mono/metadata/appdomain.h>
47 #include <mono/metadata/debug-helpers.h>
48 #include <mono/metadata/assembly.h>
49 #include <mono/metadata/metadata-internals.h>
50 #include <mono/metadata/marshal.h>
51 #include <mono/metadata/gc-internals.h>
52 #include <mono/metadata/threads-types.h>
53 #include <mono/metadata/mono-endian.h>
54 #include <mono/utils/mono-logger-internals.h>
55 #include <mono/utils/mono-mmap.h>
56 #include <mono/utils/mono-compiler.h>
57 #include <mono/utils/mono-counters.h>
58 #include <mono/utils/mono-digest.h>
59 #include <mono/utils/mono-threads-coop.h>
62 #include "seq-points.h"
64 #include "debugger-agent.h"
65 #include "aot-compiler.h"
66 #include "jit-icalls.h"
71 #define ENABLE_AOT_CACHE
74 /* Number of got entries shared between the JIT and LLVM GOT */
75 #define N_COMMON_GOT_ENTRIES 10
77 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
78 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
79 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
86 typedef struct MonoAotModule {
88 /* Pointer to the Global Offset Table */
92 GHashTable *name_cache;
93 GHashTable *extra_methods;
94 /* Maps methods to their code */
95 GHashTable *method_to_code;
96 /* Maps pointers into the method info to the methods themselves */
97 GHashTable *method_ref_to_method;
98 MonoAssemblyName *image_names;
100 MonoAssembly *assembly;
101 MonoImage **image_table;
102 guint32 image_table_len;
103 gboolean out_of_date;
105 gboolean got_initializing;
108 guint8 *jit_code_start;
109 guint8 *jit_code_end;
110 guint8 *llvm_code_start;
111 guint8 *llvm_code_end;
115 /* Maps method indexes to their code */
117 /* Sorted array of method addresses */
118 gpointer *sorted_methods;
119 /* Method indexes for each method in sorted_methods */
120 int *sorted_method_indexes;
121 /* The length of the two tables above */
122 int sorted_methods_len;
123 guint32 *method_info_offsets;
124 guint32 *ex_info_offsets;
125 guint32 *class_info_offsets;
126 guint32 *got_info_offsets;
127 guint32 *llvm_got_info_offsets;
128 guint32 *methods_loaded;
129 guint16 *class_name_table;
130 guint32 *extra_method_table;
131 guint32 *extra_method_info_offsets;
132 guint32 *unbox_trampolines;
133 guint32 *unbox_trampolines_end;
134 guint32 *unbox_trampoline_addresses;
137 /* Points to the mono EH data created by LLVM */
138 guint8 *mono_eh_frame;
140 /* Points to the data tables if MONO_AOT_FILE_FLAG_SEPARATE_DATA is set */
141 gpointer tables [MONO_AOT_TABLE_NUM];
142 /* Points to the trampolines */
143 guint8 *trampolines [MONO_AOT_TRAMP_NUM];
144 /* The first unused trampoline of each kind */
145 guint32 trampoline_index [MONO_AOT_TRAMP_NUM];
147 gboolean use_page_trampolines;
149 MonoAotFileInfo info;
154 JitInfoMap *async_jit_info_table;
160 unsigned char *trampolines;
161 unsigned char *trampolines_end;
164 static GHashTable *aot_modules;
165 #define mono_aot_lock() mono_os_mutex_lock (&aot_mutex)
166 #define mono_aot_unlock() mono_os_mutex_unlock (&aot_mutex)
167 static mono_mutex_t aot_mutex;
170 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
171 * AOT modules registered by mono_aot_register_module ().
173 static GHashTable *static_aot_modules;
176 * Maps MonoJitInfo* to the aot module they belong to, this can be different
177 * from ji->method->klass->image's aot module for generic instances.
179 static GHashTable *ji_to_amodule;
182 * Whenever to AOT compile loaded assemblies on demand and store them in
185 static gboolean enable_aot_cache = FALSE;
187 static gboolean mscorlib_aot_loaded;
190 static gint32 mono_last_aot_method = -1;
192 static gboolean make_unreadable = FALSE;
193 static guint32 name_table_accesses = 0;
194 static guint32 n_pagefaults = 0;
196 /* Used to speed-up find_aot_module () */
197 static gsize aot_code_low_addr = (gssize)-1;
198 static gsize aot_code_high_addr = 0;
201 static gint32 async_jit_info_size;
203 static GHashTable *aot_jit_icall_hash;
206 #define USE_PAGE_TRAMPOLINES ((MonoAotModule*)mono_defaults.corlib->aot_module)->use_page_trampolines
208 #define USE_PAGE_TRAMPOLINES 0
211 #define mono_aot_page_lock() mono_os_mutex_lock (&aot_page_mutex)
212 #define mono_aot_page_unlock() mono_os_mutex_unlock (&aot_page_mutex)
213 static mono_mutex_t aot_page_mutex;
215 static MonoAotModule *mscorlib_aot_module;
217 /* Embedding API hooks to load the AOT data for AOT images compiled with MONO_AOT_FILE_FLAG_SEPARATE_DATA */
218 static MonoLoadAotDataFunc aot_data_load_func;
219 static MonoFreeAotDataFunc aot_data_free_func;
220 static gpointer aot_data_func_user_data;
223 init_plt (MonoAotModule *info);
226 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end);
229 init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context, MonoError *error);
232 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets);
235 amodule_lock (MonoAotModule *amodule)
237 mono_os_mutex_lock (&amodule->mutex);
241 amodule_unlock (MonoAotModule *amodule)
243 mono_os_mutex_unlock (&amodule->mutex);
249 * Load one of the images referenced by AMODULE. Returns NULL if the image is not
250 * found, and sets @error for what happened
253 load_image (MonoAotModule *amodule, int index, MonoError *error)
255 MonoAssembly *assembly;
256 MonoImageOpenStatus status;
258 g_assert (index < amodule->image_table_len);
262 if (amodule->image_table [index])
263 return amodule->image_table [index];
264 if (amodule->out_of_date) {
265 mono_error_set_bad_image_name (error, amodule->aot_name, "Image out of date");
269 assembly = mono_assembly_load (&amodule->image_names [index], amodule->assembly->basedir, &status);
271 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable because dependency %s is not found.", amodule->aot_name, amodule->image_names [index].name);
272 mono_error_set_bad_image_name (error, amodule->aot_name, "module is unusable because dependency %s is not found (error %d).\n", amodule->image_names [index].name, status);
273 amodule->out_of_date = TRUE;
277 if (strcmp (assembly->image->guid, amodule->image_guids [index])) {
278 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable (GUID of dependent assembly %s doesn't match (expected '%s', got '%s').", amodule->aot_name, amodule->image_names [index].name, amodule->image_guids [index], assembly->image->guid);
279 mono_error_set_bad_image_name (error, amodule->aot_name, "module is unusable (GUID of dependent assembly %s doesn't match (expected '%s', got '%s').", amodule->image_names [index].name, amodule->image_guids [index], assembly->image->guid);
280 amodule->out_of_date = TRUE;
284 amodule->image_table [index] = assembly->image;
285 return assembly->image;
289 decode_value (guint8 *ptr, guint8 **rptr)
294 if ((b & 0x80) == 0){
297 } else if ((b & 0x40) == 0){
298 len = ((b & 0x3f) << 8 | ptr [1]);
300 } else if (b != 0xff) {
301 len = ((b & 0x1f) << 24) |
308 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
314 //printf ("DECODE: %d.\n", len);
319 * mono_aot_get_offset:
321 * Decode an offset table emitted by emit_offset_table (), returning the INDEXth
325 mono_aot_get_offset (guint32 *table, int index)
327 int i, group, ngroups, index_entry_size;
328 int start_offset, offset, group_size;
329 guint8 *data_start, *p;
330 guint32 *index32 = NULL;
331 guint16 *index16 = NULL;
333 /* noffsets = table [0]; */
334 group_size = table [1];
336 index_entry_size = table [3];
337 group = index / group_size;
339 if (index_entry_size == 2) {
340 index16 = (guint16*)&table [4];
341 data_start = (guint8*)&index16 [ngroups];
342 p = data_start + index16 [group];
344 index32 = (guint32*)&table [4];
345 data_start = (guint8*)&index32 [ngroups];
346 p = data_start + index32 [group];
349 /* offset will contain the value of offsets [group * group_size] */
350 offset = start_offset = decode_value (p, &p);
351 for (i = group * group_size + 1; i <= index; ++i) {
352 offset += decode_value (p, &p);
355 //printf ("Offset lookup: %d -> %d, start=%d, p=%d\n", index, offset, start_offset, table [3 + group]);
361 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error);
364 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error);
367 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error);
369 static MonoGenericInst*
370 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
373 MonoType **type_argv;
374 MonoGenericInst *inst;
378 type_argc = decode_value (p, &p);
379 type_argv = g_new0 (MonoType*, type_argc);
381 for (i = 0; i < type_argc; ++i) {
382 MonoClass *pclass = decode_klass_ref (module, p, &p, error);
387 type_argv [i] = &pclass->byval_arg;
390 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
399 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf, MonoError *error)
407 argc = decode_value (p, &p);
410 ctx->class_inst = decode_generic_inst (module, p, &p, error);
411 if (!ctx->class_inst)
415 argc = decode_value (p, &p);
418 ctx->method_inst = decode_generic_inst (module, p, &p, error);
419 if (!ctx->method_inst)
428 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
431 MonoClass *klass = NULL, *eklass;
432 guint32 token, rank, idx;
437 reftype = decode_value (p, &p);
440 mono_error_set_bad_image_name (error, module->aot_name, "Decoding a null class ref");
445 case MONO_AOT_TYPEREF_TYPEDEF_INDEX:
446 idx = decode_value (p, &p);
447 image = load_image (module, 0, error);
450 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, error);
452 case MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE:
453 idx = decode_value (p, &p);
454 image = load_image (module, decode_value (p, &p), error);
457 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, error);
459 case MONO_AOT_TYPEREF_TYPESPEC_TOKEN:
460 token = decode_value (p, &p);
461 image = module->assembly->image;
463 mono_error_set_bad_image_name (error, module->aot_name, "No image associated with the aot module");
466 klass = mono_class_get_checked (image, token, error);
468 case MONO_AOT_TYPEREF_GINST: {
470 MonoGenericContext ctx;
473 gclass = decode_klass_ref (module, p, &p, error);
476 g_assert (mono_class_is_gtd (gclass));
478 memset (&ctx, 0, sizeof (ctx));
479 ctx.class_inst = decode_generic_inst (module, p, &p, error);
482 type = mono_class_inflate_generic_type_checked (&gclass->byval_arg, &ctx, error);
485 klass = mono_class_from_mono_type (type);
486 mono_metadata_free_type (type);
489 case MONO_AOT_TYPEREF_VAR: {
491 MonoGenericContainer *container = NULL;
492 gboolean has_constraint = decode_value (p, &p);
494 if (has_constraint) {
495 MonoClass *par_klass;
496 MonoType *gshared_constraint;
498 gshared_constraint = decode_type (module, p, &p, error);
499 if (!gshared_constraint)
502 par_klass = decode_klass_ref (module, p, &p, error);
506 t = mini_get_shared_gparam (&par_klass->byval_arg, gshared_constraint);
507 klass = mono_class_from_mono_type (t);
509 int type = decode_value (p, &p);
510 int num = decode_value (p, &p);
511 gboolean is_not_anonymous = decode_value (p, &p);
513 if (is_not_anonymous) {
514 gboolean is_method = decode_value (p, &p);
517 MonoMethod *method_def;
518 g_assert (type == MONO_TYPE_MVAR);
519 method_def = decode_resolve_method_ref (module, p, &p, error);
523 container = mono_method_get_generic_container (method_def);
525 MonoClass *class_def;
526 g_assert (type == MONO_TYPE_VAR);
527 class_def = decode_klass_ref (module, p, &p, error);
531 container = mono_class_try_get_generic_container (class_def); //FIXME is this a case for a try_get?
534 // We didn't decode is_method, so we have to infer it from type enum.
535 container = get_anonymous_container_for_image (module->assembly->image, type == MONO_TYPE_MVAR);
538 t = g_new0 (MonoType, 1);
539 t->type = (MonoTypeEnum)type;
540 if (is_not_anonymous) {
541 t->data.generic_param = mono_generic_container_get_param (container, num);
544 MonoGenericParam *par = (MonoGenericParam*)mono_image_alloc0 (module->assembly->image, sizeof (MonoGenericParamFull));
545 par->owner = container;
547 t->data.generic_param = par;
548 ((MonoGenericParamFull*)par)->info.name = make_generic_name_string (module->assembly->image, num);
550 // FIXME: Maybe use types directly to avoid
551 // the overhead of creating MonoClass-es
552 klass = mono_class_from_mono_type (t);
558 case MONO_AOT_TYPEREF_ARRAY:
560 rank = decode_value (p, &p);
561 eklass = decode_klass_ref (module, p, &p, error);
564 klass = mono_array_class_get (eklass, rank);
566 case MONO_AOT_TYPEREF_PTR: {
569 t = decode_type (module, p, &p, error);
572 klass = mono_class_from_mono_type (t);
576 case MONO_AOT_TYPEREF_BLOB_INDEX: {
577 guint32 offset = decode_value (p, &p);
580 p2 = module->blob + offset;
581 klass = decode_klass_ref (module, p2, &p2, error);
585 mono_error_set_bad_image_name (error, module->aot_name, "Invalid klass reftype %d", reftype);
588 //printf ("BLA: %s\n", mono_type_full_name (&klass->byval_arg));
593 static MonoClassField*
594 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
597 MonoClass *klass = decode_klass_ref (module, buf, &buf, &error);
602 mono_error_cleanup (&error); /* FIXME don't swallow the error */
606 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
610 return mono_class_get_field (klass, token);
614 * Parse a MonoType encoded by encode_type () in aot-compiler.c. Return malloc-ed
618 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
623 t = (MonoType *)g_malloc0 (sizeof (MonoType));
627 if (*p == MONO_TYPE_PINNED) {
630 } else if (*p == MONO_TYPE_BYREF) {
638 t->type = (MonoTypeEnum)*p;
643 case MONO_TYPE_BOOLEAN:
657 case MONO_TYPE_STRING:
658 case MONO_TYPE_OBJECT:
659 case MONO_TYPE_TYPEDBYREF:
661 case MONO_TYPE_VALUETYPE:
662 case MONO_TYPE_CLASS:
663 t->data.klass = decode_klass_ref (module, p, &p, error);
667 case MONO_TYPE_SZARRAY:
668 t->data.klass = decode_klass_ref (module, p, &p, error);
674 t->data.type = decode_type (module, p, &p, error);
678 case MONO_TYPE_GENERICINST: {
680 MonoGenericContext ctx;
684 gclass = decode_klass_ref (module, p, &p, error);
687 g_assert (mono_class_is_gtd (gclass));
689 memset (&ctx, 0, sizeof (ctx));
690 ctx.class_inst = decode_generic_inst (module, p, &p, error);
693 type = mono_class_inflate_generic_type_checked (&gclass->byval_arg, &ctx, error);
696 klass = mono_class_from_mono_type (type);
697 t->data.generic_class = mono_class_get_generic_class (klass);
700 case MONO_TYPE_ARRAY: {
701 MonoArrayType *array;
704 // FIXME: memory management
705 array = g_new0 (MonoArrayType, 1);
706 array->eklass = decode_klass_ref (module, p, &p, error);
709 array->rank = decode_value (p, &p);
710 array->numsizes = decode_value (p, &p);
713 array->sizes = (int *)g_malloc0 (sizeof (int) * array->numsizes);
714 for (i = 0; i < array->numsizes; ++i)
715 array->sizes [i] = decode_value (p, &p);
717 array->numlobounds = decode_value (p, &p);
718 if (array->numlobounds)
719 array->lobounds = (int *)g_malloc0 (sizeof (int) * array->numlobounds);
720 for (i = 0; i < array->numlobounds; ++i)
721 array->lobounds [i] = decode_value (p, &p);
722 t->data.array = array;
726 case MONO_TYPE_MVAR: {
727 MonoClass *klass = decode_klass_ref (module, p, &p, error);
730 t->data.generic_param = klass->byval_arg.data.generic_param;
734 mono_error_set_bad_image_name (error, module->aot_name, "Invalid encoded type %d", t->type);
746 // FIXME: Error handling, memory management
748 static MonoMethodSignature*
749 decode_signature_with_target (MonoAotModule *module, MonoMethodSignature *target, guint8 *buf, guint8 **endbuf)
752 MonoMethodSignature *sig;
754 int i, gen_param_count = 0, param_count, call_conv;
756 gboolean hasthis, explicit_this, has_gen_params;
760 has_gen_params = (flags & 0x10) != 0;
761 hasthis = (flags & 0x20) != 0;
762 explicit_this = (flags & 0x40) != 0;
763 call_conv = flags & 0x0F;
766 gen_param_count = decode_value (p, &p);
767 param_count = decode_value (p, &p);
768 if (target && param_count != target->param_count)
770 sig = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + param_count * sizeof (MonoType *));
771 sig->param_count = param_count;
772 sig->sentinelpos = -1;
773 sig->hasthis = hasthis;
774 sig->explicit_this = explicit_this;
775 sig->call_convention = call_conv;
776 sig->generic_param_count = gen_param_count;
777 sig->ret = decode_type (module, p, &p, &error);
780 for (i = 0; i < param_count; ++i) {
781 if (*p == MONO_TYPE_SENTINEL) {
782 g_assert (sig->call_convention == MONO_CALL_VARARG);
783 sig->sentinelpos = i;
786 sig->params [i] = decode_type (module, p, &p, &error);
787 if (!sig->params [i])
791 if (sig->call_convention == MONO_CALL_VARARG && sig->sentinelpos == -1)
792 sig->sentinelpos = sig->param_count;
798 mono_error_cleanup (&error); /* FIXME don't swallow the error */
803 static MonoMethodSignature*
804 decode_signature (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
806 return decode_signature_with_target (module, NULL, buf, endbuf);
810 sig_matches_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
812 MonoMethodSignature *sig;
816 sig = decode_signature_with_target (module, mono_method_signature (target), p, &p);
817 res = sig && mono_metadata_signature_equal (mono_method_signature (target), sig);
823 /* Stores information returned by decode_method_ref () */
828 gboolean no_aot_trampoline;
832 * decode_method_ref_with_target:
834 * Decode a method reference, storing the image/token into a MethodRef structure.
835 * This avoids loading metadata for the method if the caller does not need it. If the method has
836 * no token, then it is loaded from metadata and ref->method is set to the method instance.
837 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method
838 * couldn't resolve to TARGET, and return FALSE.
839 * There are some kinds of method references which only support a non-null TARGET.
840 * This means that its not possible to decode this into a method, only to check
841 * that the method reference matches a given method. This is normally not a problem
842 * as these wrappers only occur in the extra_methods table, where we already have
843 * a method we want to lookup.
845 * If there was a decoding error, we return FALSE and set @error
848 decode_method_ref_with_target (MonoAotModule *module, MethodRef *ref, MonoMethod *target, guint8 *buf, guint8 **endbuf, MonoError *error)
850 guint32 image_index, value;
851 MonoImage *image = NULL;
854 memset (ref, 0, sizeof (MethodRef));
857 value = decode_value (p, &p);
858 image_index = value >> 24;
860 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
861 ref->no_aot_trampoline = TRUE;
862 value = decode_value (p, &p);
863 image_index = value >> 24;
866 if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
867 if (target && target->wrapper_type) {
872 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
874 guint32 wrapper_type;
876 wrapper_type = decode_value (p, &p);
878 if (target && target->wrapper_type != wrapper_type)
882 image = mono_defaults.corlib;
884 switch (wrapper_type) {
885 #ifndef DISABLE_REMOTING
886 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
887 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
890 mono_class_init (m->klass);
894 ref->method = mono_marshal_get_remoting_invoke_with_check (m);
897 case MONO_WRAPPER_PROXY_ISINST: {
898 MonoClass *klass = decode_klass_ref (module, p, &p, error);
901 ref->method = mono_marshal_get_proxy_cancast (klass);
904 case MONO_WRAPPER_LDFLD:
905 case MONO_WRAPPER_LDFLDA:
906 case MONO_WRAPPER_STFLD: {
907 MonoClass *klass = decode_klass_ref (module, p, &p, error);
910 if (wrapper_type == MONO_WRAPPER_LDFLD)
911 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
912 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
913 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
914 else if (wrapper_type == MONO_WRAPPER_STFLD)
915 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
917 mono_error_set_bad_image_name (error, module->aot_name, "Unknown AOT wrapper type %d", wrapper_type);
923 case MONO_WRAPPER_ALLOC: {
924 int atype = decode_value (p, &p);
925 ManagedAllocatorVariant variant =
926 mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS ?
927 MANAGED_ALLOCATOR_SLOW_PATH : MANAGED_ALLOCATOR_REGULAR;
929 ref->method = mono_gc_get_managed_allocator_by_type (atype, variant);
930 /* Try to fallback to the slow path version */
931 if (!ref->method && variant == MANAGED_ALLOCATOR_REGULAR)
932 ref->method = mono_gc_get_managed_allocator_by_type (atype, MANAGED_ALLOCATOR_SLOW_PATH);
934 mono_error_set_bad_image_name (error, module->aot_name, "Error: No managed allocator, but we need one for AOT.\nAre you using non-standard GC options?\n");
939 case MONO_WRAPPER_WRITE_BARRIER: {
940 ref->method = mono_gc_get_write_barrier ();
943 case MONO_WRAPPER_STELEMREF: {
944 int subtype = decode_value (p, &p);
946 if (subtype == WRAPPER_SUBTYPE_NONE) {
947 ref->method = mono_marshal_get_stelemref ();
948 } else if (subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) {
951 kind = decode_value (p, &p);
953 /* Can't decode this */
956 if (target->wrapper_type == MONO_WRAPPER_STELEMREF) {
957 info = mono_marshal_get_wrapper_info (target);
960 if (info->subtype == subtype && info->d.virtual_stelemref.kind == kind)
961 ref->method = target;
968 mono_error_set_bad_image_name (error, module->aot_name, "Invalid STELEMREF subtype %d", subtype);
973 case MONO_WRAPPER_SYNCHRONIZED: {
974 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
977 ref->method = mono_marshal_get_synchronized_wrapper (m);
980 case MONO_WRAPPER_UNKNOWN: {
981 int subtype = decode_value (p, &p);
983 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) {
984 MonoClass *klass = decode_klass_ref (module, p, &p, error);
990 if (klass != target->klass)
993 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE) {
994 if (strcmp (target->name, "PtrToStructure"))
996 ref->method = mono_marshal_get_ptr_to_struct (klass);
998 if (strcmp (target->name, "StructureToPtr"))
1000 ref->method = mono_marshal_get_struct_to_ptr (klass);
1002 } else if (subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) {
1003 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1006 ref->method = mono_marshal_get_synchronized_inner_wrapper (m);
1007 } else if (subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
1008 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1011 ref->method = mono_marshal_get_array_accessor_wrapper (m);
1012 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN) {
1013 ref->method = mono_marshal_get_gsharedvt_in_wrapper ();
1014 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
1015 ref->method = mono_marshal_get_gsharedvt_out_wrapper ();
1016 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) {
1017 MonoMethodSignature *sig = decode_signature (module, p, &p);
1020 ref->method = mini_get_gsharedvt_in_sig_wrapper (sig);
1021 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG) {
1022 MonoMethodSignature *sig = decode_signature (module, p, &p);
1025 ref->method = mini_get_gsharedvt_out_sig_wrapper (sig);
1027 mono_error_set_bad_image_name (error, module->aot_name, "Invalid UNKNOWN wrapper subtype %d", subtype);
1032 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
1033 int subtype = decode_value (p, &p);
1035 if (subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
1036 int rank = decode_value (p, &p);
1037 int elem_size = decode_value (p, &p);
1039 ref->method = mono_marshal_get_array_address (rank, elem_size);
1040 } else if (subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
1043 m = decode_resolve_method_ref (module, p, &p, error);
1049 g_assert (target->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED);
1051 info = mono_marshal_get_wrapper_info (target);
1052 if (info && info->subtype == subtype && info->d.string_ctor.method == m)
1053 ref->method = target;
1059 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
1061 int subtype = decode_value (p, &p);
1064 if (subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1069 if (strcmp (target->name, name) != 0)
1071 ref->method = target;
1073 m = decode_resolve_method_ref (module, p, &p, error);
1077 /* This should only happen when looking for an extra method */
1080 if (mono_marshal_method_from_wrapper (target) == m)
1081 ref->method = target;
1087 case MONO_WRAPPER_CASTCLASS: {
1088 int subtype = decode_value (p, &p);
1090 if (subtype == WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE)
1091 ref->method = mono_marshal_get_castclass_with_cache ();
1092 else if (subtype == WRAPPER_SUBTYPE_ISINST_WITH_CACHE)
1093 ref->method = mono_marshal_get_isinst_with_cache ();
1095 mono_error_set_bad_image_name (error, module->aot_name, "Invalid CASTCLASS wrapper subtype %d", subtype);
1100 case MONO_WRAPPER_RUNTIME_INVOKE: {
1101 int subtype = decode_value (p, &p);
1106 if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC) {
1107 if (strcmp (target->name, "runtime_invoke_dynamic") != 0)
1109 ref->method = target;
1110 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT) {
1111 /* Direct wrapper */
1112 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1115 ref->method = mono_marshal_get_runtime_invoke (m, FALSE);
1116 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) {
1117 /* Virtual direct wrapper */
1118 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1121 ref->method = mono_marshal_get_runtime_invoke (m, TRUE);
1123 MonoMethodSignature *sig;
1125 sig = decode_signature_with_target (module, NULL, p, &p);
1126 info = mono_marshal_get_wrapper_info (target);
1129 if (info->subtype != subtype)
1131 g_assert (info->d.runtime_invoke.sig);
1132 if (mono_metadata_signature_equal (sig, info->d.runtime_invoke.sig))
1133 ref->method = target;
1139 case MONO_WRAPPER_DELEGATE_INVOKE:
1140 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1141 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
1142 gboolean is_inflated = decode_value (p, &p);
1143 WrapperSubtype subtype;
1147 MonoMethod *invoke, *wrapper;
1149 klass = decode_klass_ref (module, p, &p, error);
1153 switch (wrapper_type) {
1154 case MONO_WRAPPER_DELEGATE_INVOKE:
1155 invoke = mono_get_delegate_invoke (klass);
1156 wrapper = mono_marshal_get_delegate_invoke (invoke, NULL);
1158 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1159 invoke = mono_get_delegate_begin_invoke (klass);
1160 wrapper = mono_marshal_get_delegate_begin_invoke (invoke);
1162 case MONO_WRAPPER_DELEGATE_END_INVOKE:
1163 invoke = mono_get_delegate_end_invoke (klass);
1164 wrapper = mono_marshal_get_delegate_end_invoke (invoke);
1167 g_assert_not_reached ();
1172 * Due to the way mini_get_shared_method () works, we could end up with
1173 * multiple copies of the same wrapper.
1175 if (wrapper->klass != target->klass)
1177 ref->method = target;
1179 ref->method = wrapper;
1183 * These wrappers are associated with a signature, not with a method.
1184 * Since we can't decode them into methods, they need a target method.
1189 if (wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1190 subtype = (WrapperSubtype)decode_value (p, &p);
1191 info = mono_marshal_get_wrapper_info (target);
1193 if (info->subtype != subtype)
1196 if (subtype != WRAPPER_SUBTYPE_NONE)
1200 if (sig_matches_target (module, target, p, &p))
1201 ref->method = target;
1207 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
1211 m = decode_resolve_method_ref (module, p, &p, error);
1214 klass = decode_klass_ref (module, p, &p, error);
1217 ref->method = mono_marshal_get_managed_wrapper (m, klass, 0, error);
1218 if (!mono_error_ok (error))
1223 g_assert_not_reached ();
1225 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1226 image_index = decode_value (p, &p);
1227 ref->token = decode_value (p, &p);
1229 image = load_image (module, image_index, error);
1232 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1234 MonoGenericContext ctx;
1237 * These methods do not have a token which resolves them, so we
1238 * resolve them immediately.
1240 klass = decode_klass_ref (module, p, &p, error);
1244 if (target && target->klass != klass)
1247 image_index = decode_value (p, &p);
1248 ref->token = decode_value (p, &p);
1250 image = load_image (module, image_index, error);
1254 ref->method = mono_get_method_checked (image, ref->token, NULL, NULL, error);
1259 memset (&ctx, 0, sizeof (ctx));
1261 if (FALSE && mono_class_is_ginst (klass)) {
1262 ctx.class_inst = mono_class_get_generic_class (klass)->context.class_inst;
1263 ctx.method_inst = NULL;
1265 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, error);
1270 memset (&ctx, 0, sizeof (ctx));
1272 if (!decode_generic_context (module, &ctx, p, &p, error))
1275 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, error);
1279 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1283 klass = decode_klass_ref (module, p, &p, error);
1286 method_type = decode_value (p, &p);
1287 switch (method_type) {
1289 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1292 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1295 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1298 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1301 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1304 mono_error_set_bad_image_name (error, module->aot_name, "Invalid METHODREF_ARRAY method type %d", method_type);
1308 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1309 image_index = decode_value (p, &p);
1310 value = decode_value (p, &p);
1313 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1315 image = load_image (module, image_index, error);
1328 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf, MonoError *error)
1330 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf, error);
1334 * decode_resolve_method_ref_with_target:
1336 * Similar to decode_method_ref, but resolve and return the method itself.
1339 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf, MonoError *error)
1345 if (!decode_method_ref_with_target (module, &ref, target, buf, endbuf, error))
1350 mono_error_set_bad_image_name (error, module->aot_name, "No image found for methodref with target");
1353 return mono_get_method_checked (ref.image, ref.token, NULL, NULL, error);
1357 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
1359 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf, error);
1362 #ifdef ENABLE_AOT_CACHE
1368 * - Add options for controlling the cache size
1369 * - Handle full cache by deleting old assemblies lru style
1370 * - Maybe add a threshold after an assembly is AOT compiled
1371 * - Add options for enabling this for specific main assemblies
1374 /* The cache directory */
1375 static char *cache_dir;
1377 /* The number of assemblies AOTed in this run */
1378 static int cache_count;
1380 /* Whenever to AOT in-process */
1381 static gboolean in_process;
1384 collect_assemblies (gpointer data, gpointer user_data)
1386 MonoAssembly *ass = data;
1387 GSList **l = user_data;
1389 *l = g_slist_prepend (*l, ass);
1392 #define SHA1_DIGEST_LENGTH 20
1395 * get_aot_config_hash:
1397 * Return a hash for all the version information an AOT module depends on.
1399 static G_GNUC_UNUSED char*
1400 get_aot_config_hash (MonoAssembly *assembly)
1403 GSList *l, *assembly_list = NULL;
1406 guint8 digest [SHA1_DIGEST_LENGTH];
1409 build_info = mono_get_runtime_build_info ();
1411 s = g_string_new (build_info);
1413 mono_assembly_foreach (collect_assemblies, &assembly_list);
1416 * The assembly list includes the current assembly as well, no need
1419 for (l = assembly_list; l; l = l->next) {
1420 MonoAssembly *ass = l->data;
1422 g_string_append (s, "_");
1423 g_string_append (s, ass->aname.name);
1424 g_string_append (s, "_");
1425 g_string_append (s, ass->image->guid);
1428 for (i = 0; i < s->len; ++i) {
1429 if (!isalnum (s->str [i]) && s->str [i] != '-')
1433 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1435 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1436 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1437 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1439 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1441 g_string_free (s, TRUE);
1447 aot_cache_init (void)
1451 enable_aot_cache = TRUE;
1456 * aot_cache_load_module:
1458 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1461 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1463 MonoAotCacheConfig *config;
1465 char *fname, *tmp2, *aot_options, *failure_fname;
1477 if (image_is_dynamic (assembly->image))
1480 /* Check in the list of assemblies enabled for aot caching */
1481 config = mono_get_aot_cache_config ();
1485 MonoDomain *domain = mono_domain_get ();
1486 MonoAssembly *entry_assembly = domain->entry_assembly;
1488 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1489 for (l = config->apps; l; l = l->next) {
1492 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1500 for (l = config->assemblies; l; l = l->next) {
1503 if (!strcmp (assembly->aname.name, n))
1513 home = g_get_home_dir ();
1516 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1517 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1518 g_mkdir_with_parents (cache_dir, 0777);
1522 * The same assembly can be used in multiple configurations, i.e. multiple
1523 * versions of the runtime, with multiple versions of dependent assemblies etc.
1524 * To handle this, we compute a version string containing all this information, hash it,
1525 * and use the hash as a filename suffix.
1527 hash = get_aot_config_hash (assembly);
1529 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, MONO_SOLIB_EXT);
1530 fname = g_build_filename (cache_dir, tmp2, NULL);
1534 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1535 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1538 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1542 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1544 * Can't AOT this during startup, so we AOT it when called later from
1545 * mono_aot_get_method ().
1549 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1551 /* Only AOT one assembly per run to avoid slowing down execution too much */
1552 if (cache_count > 0)
1556 /* Check for previous failure */
1557 failure_fname = g_strdup_printf ("%s.failure", fname);
1558 failure_file = fopen (failure_fname, "r");
1560 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1561 g_free (failure_fname);
1564 g_free (failure_fname);
1565 fclose (failure_file);
1568 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1571 * We need to invoke the AOT compiler here. There are multiple approaches:
1572 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1573 * its hard to make the new process load the same set of assemblies.
1574 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1576 * - fork a new process and do the work there.
1579 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1580 /* Maybe due this in another thread ? */
1581 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1583 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1584 failure_fname = g_strdup_printf ("%s.failure", fname);
1585 failure_file = fopen (failure_fname, "a+");
1586 fclose (failure_file);
1587 g_free (failure_fname);
1589 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1593 * - Avoid waiting for the aot process to finish ?
1594 * (less overhead, but multiple processes could aot the same assembly at the same time)
1603 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1604 logfile = fopen (logfile_name, "a+");
1605 g_free (logfile_name);
1607 dup2 (fileno (logfile), 1);
1608 dup2 (fileno (logfile), 2);
1610 aot_options = g_strdup_printf ("outfile=%s", fname);
1611 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1619 waitpid (pid, &exit_status, 0);
1620 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1621 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1623 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1627 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1635 aot_cache_init (void)
1640 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1648 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1652 guint16 *table, *entry;
1655 char *symbol = (char*)name;
1658 symbol = g_strdup_printf ("_%s", name);
1661 /* The first entry points to the hash */
1662 table = (guint16 *)globals [0];
1665 table_size = table [0];
1668 hash = mono_metadata_str_hash (symbol) % table_size;
1670 entry = &table [hash * 2];
1672 /* Search the hash for the index into the globals table */
1674 while (entry [0] != 0) {
1675 guint32 index = entry [0] - 1;
1676 guint32 next = entry [1];
1678 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1680 if (!strcmp (globals [index * 2], symbol)) {
1681 global_index = index;
1686 entry = &table [next * 2];
1692 if (global_index != -1)
1693 *value = globals [global_index * 2 + 1];
1700 char *err = mono_dl_symbol (module, name, value);
1708 find_amodule_symbol (MonoAotModule *amodule, const char *name, gpointer *value)
1710 g_assert (!(amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY));
1712 find_symbol (amodule->sofile, amodule->globals, name, value);
1716 mono_install_load_aot_data_hook (MonoLoadAotDataFunc load_func, MonoFreeAotDataFunc free_func, gpointer user_data)
1718 aot_data_load_func = load_func;
1719 aot_data_free_func = free_func;
1720 aot_data_func_user_data = user_data;
1723 /* Load the separate aot data file for ASSEMBLY */
1725 open_aot_data (MonoAssembly *assembly, MonoAotFileInfo *info, void **ret_handle)
1731 if (aot_data_load_func) {
1732 data = aot_data_load_func (assembly, info->datafile_size, aot_data_func_user_data, ret_handle);
1738 * Use <assembly name>.aotdata as the default implementation if no callback is given
1740 filename = g_strdup_printf ("%s.aotdata", assembly->image->name);
1741 map = mono_file_map_open (filename);
1743 data = mono_file_map (info->datafile_size, MONO_MMAP_READ, mono_file_map_fd (map), 0, ret_handle);
1750 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, guint8 *blob, char **out_msg)
1754 gboolean usable = TRUE;
1755 gboolean full_aot, safepoints;
1756 guint32 excluded_cpu_optimizations;
1758 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1759 msg = g_strdup_printf ("doesn't match assembly");
1763 build_info = mono_get_runtime_build_info ();
1764 if (strlen ((const char *)info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1765 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1768 g_free (build_info);
1770 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1772 if (mono_aot_only && !full_aot) {
1773 msg = g_strdup_printf ("not compiled with --aot=full");
1776 if (!mono_aot_only && full_aot) {
1777 msg = g_strdup_printf ("compiled with --aot=full");
1780 if (mono_llvm_only && !(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1781 msg = g_strdup_printf ("not compiled with --aot=llvmonly");
1784 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1785 msg = g_strdup_printf ("not compiled for debugging");
1789 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1790 if (info->opts & excluded_cpu_optimizations) {
1791 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1795 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1796 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1800 if (info->gc_name_index != -1) {
1801 char *gc_name = (char*)&blob [info->gc_name_index];
1802 const char *current_gc_name = mono_gc_get_gc_name ();
1804 if (strcmp (current_gc_name, gc_name) != 0) {
1805 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1810 safepoints = info->flags & MONO_AOT_FILE_FLAG_SAFEPOINTS;
1812 if (!safepoints && mono_threads_is_coop_enabled ()) {
1813 msg = g_strdup_printf ("not compiled with safepoints");
1822 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1825 get_call_table_entry (void *table, int index)
1827 #if defined(TARGET_ARM)
1832 ins_addr = (guint32*)table + index;
1834 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1836 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1837 return (char*)ins_addr + (offset * 2) + 8 + 1;
1839 offset = (((int)ins & 0xffffff) << 8) >> 8;
1840 return (char*)ins_addr + (offset * 4) + 8;
1842 #elif defined(TARGET_ARM64)
1843 return mono_arch_get_call_target ((guint8*)table + (index * 4) + 4);
1844 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1845 /* The callee expects an ip which points after the call */
1846 return mono_arch_get_call_target ((guint8*)table + (index * 5) + 5);
1848 g_assert_not_reached ();
1856 * Initialize the shared got entries for AMODULE.
1859 init_amodule_got (MonoAotModule *amodule)
1863 MonoJumpInfo *patches;
1864 guint32 got_offsets [128];
1868 /* These can't be initialized in load_aot_module () */
1869 if (amodule->shared_got [0] || amodule->got_initializing)
1872 amodule->got_initializing = TRUE;
1874 mp = mono_mempool_new ();
1875 npatches = amodule->info.nshared_got_entries;
1876 for (i = 0; i < npatches; ++i)
1877 got_offsets [i] = i;
1878 patches = decode_patches (amodule, mp, npatches, FALSE, got_offsets);
1880 for (i = 0; i < npatches; ++i) {
1883 if (ji->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR && !mono_gc_is_moving ()) {
1884 amodule->shared_got [i] = NULL;
1885 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_START && !mono_gc_is_moving ()) {
1886 amodule->shared_got [i] = NULL;
1887 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_BITS && !mono_gc_is_moving ()) {
1888 amodule->shared_got [i] = NULL;
1889 } else if (ji->type == MONO_PATCH_INFO_IMAGE) {
1890 amodule->shared_got [i] = amodule->assembly->image;
1891 } else if (ji->type == MONO_PATCH_INFO_MSCORLIB_GOT_ADDR) {
1892 if (mono_defaults.corlib) {
1893 MonoAotModule *mscorlib_amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
1895 if (mscorlib_amodule)
1896 amodule->shared_got [i] = mscorlib_amodule->got;
1898 amodule->shared_got [i] = amodule->got;
1900 } else if (ji->type == MONO_PATCH_INFO_AOT_MODULE) {
1901 amodule->shared_got [i] = amodule;
1903 amodule->shared_got [i] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, ji, FALSE, &error);
1904 mono_error_assert_ok (&error);
1909 for (i = 0; i < npatches; ++i)
1910 amodule->got [i] = amodule->shared_got [i];
1912 if (amodule->llvm_got) {
1913 for (i = 0; i < npatches; ++i)
1914 amodule->llvm_got [i] = amodule->shared_got [i];
1917 mono_mempool_destroy (mp);
1921 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1923 char *aot_name, *found_aot_name;
1924 MonoAotModule *amodule;
1926 gboolean usable = TRUE;
1927 char *version_symbol = NULL;
1929 gpointer *globals = NULL;
1930 MonoAotFileInfo *info = NULL;
1932 gboolean do_load_image = TRUE;
1933 int align_double, align_int64;
1934 guint8 *aot_data = NULL;
1936 if (mono_compile_aot)
1939 if (assembly->image->aot_module)
1941 * Already loaded. This can happen because the assembly loading code might invoke
1942 * the assembly load hooks multiple times for the same assembly.
1946 if (image_is_dynamic (assembly->image) || assembly->ref_only)
1950 if (static_aot_modules)
1951 info = (MonoAotFileInfo *)g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1958 found_aot_name = NULL;
1961 /* Statically linked AOT module */
1962 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1963 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.", aot_name);
1964 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1965 globals = (void **)info->globals;
1971 if (enable_aot_cache)
1972 sofile = aot_cache_load_module (assembly, &aot_name);
1974 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
1976 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1978 found_aot_name = g_strdup (aot_name);
1980 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' not found: %s", aot_name, err);
1986 char *basename = g_path_get_basename (assembly->image->name);
1987 aot_name = g_strdup_printf ("%s/mono/aot-cache/%s/%s%s", mono_assembly_getrootdir(), MONO_ARCHITECTURE, basename, MONO_SOLIB_EXT);
1989 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1991 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' not found: %s", aot_name, err);
1998 for (l = mono_aot_paths; l; l = l->next) {
1999 char *path = l->data;
2001 char *basename = g_path_get_basename (assembly->image->name);
2002 aot_name = g_strdup_printf ("%s/%s%s", path, basename, MONO_SOLIB_EXT);
2003 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
2005 found_aot_name = g_strdup (aot_name);
2007 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' not found: %s", aot_name, err);
2017 if (mono_aot_only && assembly->image->tables [MONO_TABLE_METHOD].rows) {
2018 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
2019 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
2027 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
2028 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
2031 // Copy aotid to MonoImage
2032 memcpy(&assembly->image->aotid, info->aotid, 16);
2034 if (version_symbol) {
2035 /* Old file format */
2036 version = atoi (version_symbol);
2039 version = info->version;
2042 if (version != MONO_AOT_FILE_VERSION) {
2043 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
2049 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2050 aot_data = open_aot_data (assembly, info, &handle);
2052 blob = aot_data + info->table_offsets [MONO_AOT_TABLE_BLOB];
2054 blob = (guint8 *)info->blob;
2057 usable = check_usable (assembly, info, blob, &msg);
2061 if (mono_aot_only) {
2062 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", found_aot_name, msg);
2064 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.", found_aot_name, msg);
2067 g_free (found_aot_name);
2069 mono_dl_close (sofile);
2070 assembly->image->aot_module = NULL;
2075 align_double = MONO_ABI_ALIGNOF (double);
2076 align_int64 = MONO_ABI_ALIGNOF (gint64);
2077 g_assert (info->double_align == align_double);
2078 g_assert (info->long_align == align_int64);
2079 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
2081 amodule = g_new0 (MonoAotModule, 1);
2082 amodule->aot_name = found_aot_name;
2083 amodule->assembly = assembly;
2085 memcpy (&amodule->info, info, sizeof (*info));
2087 amodule->got = (void **)amodule->info.jit_got;
2088 amodule->llvm_got = (void **)amodule->info.llvm_got;
2089 amodule->globals = globals;
2090 amodule->sofile = sofile;
2091 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
2092 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2093 amodule->shared_got = g_new0 (gpointer, info->nshared_got_entries);
2095 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2096 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
2097 amodule->tables [i] = aot_data + info->table_offsets [i];
2100 mono_os_mutex_init_recursive (&amodule->mutex);
2102 /* Read image table */
2104 guint32 table_len, i;
2107 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA)
2108 table = amodule->tables [MONO_AOT_TABLE_IMAGE_TABLE];
2110 table = (char *)info->image_table;
2113 table_len = *(guint32*)table;
2114 table += sizeof (guint32);
2115 amodule->image_table = g_new0 (MonoImage*, table_len);
2116 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
2117 amodule->image_guids = g_new0 (char*, table_len);
2118 amodule->image_table_len = table_len;
2119 for (i = 0; i < table_len; ++i) {
2120 MonoAssemblyName *aname = &(amodule->image_names [i]);
2122 aname->name = g_strdup (table);
2123 table += strlen (table) + 1;
2124 amodule->image_guids [i] = g_strdup (table);
2125 table += strlen (table) + 1;
2127 aname->culture = g_strdup (table);
2128 table += strlen (table) + 1;
2129 memcpy (aname->public_key_token, table, strlen (table) + 1);
2130 table += strlen (table) + 1;
2132 table = (char *)ALIGN_PTR_TO (table, 8);
2133 aname->flags = *(guint32*)table;
2135 aname->major = *(guint32*)table;
2137 aname->minor = *(guint32*)table;
2139 aname->build = *(guint32*)table;
2141 aname->revision = *(guint32*)table;
2146 amodule->jit_code_start = (guint8 *)info->jit_code_start;
2147 amodule->jit_code_end = (guint8 *)info->jit_code_end;
2148 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2149 amodule->blob = amodule->tables [MONO_AOT_TABLE_BLOB];
2150 amodule->method_info_offsets = amodule->tables [MONO_AOT_TABLE_METHOD_INFO_OFFSETS];
2151 amodule->ex_info_offsets = amodule->tables [MONO_AOT_TABLE_EX_INFO_OFFSETS];
2152 amodule->class_info_offsets = amodule->tables [MONO_AOT_TABLE_CLASS_INFO_OFFSETS];
2153 amodule->class_name_table = amodule->tables [MONO_AOT_TABLE_CLASS_NAME];
2154 amodule->extra_method_table = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_TABLE];
2155 amodule->extra_method_info_offsets = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS];
2156 amodule->got_info_offsets = amodule->tables [MONO_AOT_TABLE_GOT_INFO_OFFSETS];
2157 amodule->llvm_got_info_offsets = amodule->tables [MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS];
2159 amodule->blob = info->blob;
2160 amodule->method_info_offsets = (guint32 *)info->method_info_offsets;
2161 amodule->ex_info_offsets = (guint32 *)info->ex_info_offsets;
2162 amodule->class_info_offsets = (guint32 *)info->class_info_offsets;
2163 amodule->class_name_table = (guint16 *)info->class_name_table;
2164 amodule->extra_method_table = (guint32 *)info->extra_method_table;
2165 amodule->extra_method_info_offsets = (guint32 *)info->extra_method_info_offsets;
2166 amodule->got_info_offsets = info->got_info_offsets;
2167 amodule->llvm_got_info_offsets = info->llvm_got_info_offsets;
2169 amodule->unbox_trampolines = (guint32 *)info->unbox_trampolines;
2170 amodule->unbox_trampolines_end = (guint32 *)info->unbox_trampolines_end;
2171 amodule->unbox_trampoline_addresses = (guint32 *)info->unbox_trampoline_addresses;
2172 amodule->unwind_info = (guint8 *)info->unwind_info;
2173 amodule->mem_begin = amodule->jit_code_start;
2174 amodule->mem_end = (guint8 *)info->mem_end;
2175 amodule->plt = (guint8 *)info->plt;
2176 amodule->plt_end = (guint8 *)info->plt_end;
2177 amodule->mono_eh_frame = (guint8 *)info->mono_eh_frame;
2178 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = (guint8 *)info->specific_trampolines;
2179 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = (guint8 *)info->static_rgctx_trampolines;
2180 amodule->trampolines [MONO_AOT_TRAMP_IMT] = (guint8 *)info->imt_trampolines;
2181 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = (guint8 *)info->gsharedvt_arg_trampolines;
2183 if (!strcmp (assembly->aname.name, "mscorlib"))
2184 mscorlib_aot_module = amodule;
2186 /* Compute method addresses */
2187 amodule->methods = (void **)g_malloc0 (amodule->info.nmethods * sizeof (gpointer));
2188 for (i = 0; i < amodule->info.nmethods; ++i) {
2191 if (amodule->info.llvm_get_method) {
2192 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2194 addr = get_method (i);
2197 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2198 if (!addr && amodule->info.method_addresses) {
2199 addr = get_call_table_entry (amodule->info.method_addresses, i);
2201 if (addr == amodule->info.method_addresses)
2205 amodule->methods [i] = GINT_TO_POINTER (-1);
2207 amodule->methods [i] = addr;
2210 if (make_unreadable) {
2211 #ifndef TARGET_WIN32
2213 guint8 *page_start, *page_end;
2216 addr = amodule->mem_begin;
2218 len = amodule->mem_end - amodule->mem_begin;
2220 /* Round down in both directions to avoid modifying data which is not ours */
2221 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2222 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
2223 if (page_end > page_start) {
2224 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
2225 g_assert (err == 0);
2230 /* Compute the boundaries of LLVM code */
2231 if (info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM)
2232 compute_llvm_code_range (amodule, &amodule->llvm_code_start, &amodule->llvm_code_end);
2236 if (amodule->jit_code_start) {
2237 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->jit_code_start);
2238 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->jit_code_end);
2240 if (amodule->llvm_code_start) {
2241 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->llvm_code_start);
2242 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->llvm_code_end);
2245 g_hash_table_insert (aot_modules, assembly, amodule);
2248 if (amodule->jit_code_start)
2249 mono_jit_info_add_aot_module (assembly->image, amodule->jit_code_start, amodule->jit_code_end);
2250 if (amodule->llvm_code_start)
2251 mono_jit_info_add_aot_module (assembly->image, amodule->llvm_code_start, amodule->llvm_code_end);
2253 assembly->image->aot_module = amodule;
2255 if (mono_aot_only && !mono_llvm_only) {
2257 find_amodule_symbol (amodule, "specific_trampolines_page", (gpointer *)&code);
2258 amodule->use_page_trampolines = code != NULL;
2259 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2263 * Register the plt region as a single trampoline so we can unwind from this code
2265 mono_tramp_info_register (
2266 mono_tramp_info_create (
2269 amodule->plt_end - amodule->plt,
2271 mono_unwind_get_cie_program ()
2277 * Since we store methoddef and classdef tokens when referring to methods/classes in
2278 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2279 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2280 * non-lazily, since we can't handle out-of-date errors later.
2281 * The cached class info also depends on the exact assemblies.
2283 #if defined(__native_client__)
2284 /* TODO: Don't 'load_image' on mscorlib due to a */
2285 /* recursive loading problem. This should be */
2286 /* removed if mscorlib is loaded from disk. */
2287 if (strncmp(assembly->aname.name, "mscorlib", 8)) {
2288 do_load_image = TRUE;
2290 do_load_image = FALSE;
2293 if (do_load_image) {
2294 for (i = 0; i < amodule->image_table_len; ++i) {
2296 load_image (amodule, i, &error);
2297 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2301 if (amodule->out_of_date) {
2302 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: Module %s is unusable because a dependency is out-of-date.", assembly->image->name);
2304 g_error ("Failed to load AOT module '%s' while running in aot-only mode because a dependency cannot be found or it is out of date.\n", found_aot_name);
2306 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' found.", found_aot_name);
2311 * mono_aot_register_module:
2313 * This should be called by embedding code to register AOT modules statically linked
2314 * into the executable. AOT_INFO should be the value of the
2315 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2318 mono_aot_register_module (gpointer *aot_info)
2322 MonoAotFileInfo *info = (MonoAotFileInfo *)aot_info;
2324 g_assert (info->version == MONO_AOT_FILE_VERSION);
2326 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
2327 globals = (void **)info->globals;
2331 aname = (char *)info->assembly_name;
2333 /* This could be called before startup */
2337 if (!static_aot_modules)
2338 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2340 g_hash_table_insert (static_aot_modules, aname, info);
2347 mono_aot_init (void)
2349 mono_os_mutex_init_recursive (&aot_mutex);
2350 mono_os_mutex_init_recursive (&aot_page_mutex);
2351 aot_modules = g_hash_table_new (NULL, NULL);
2353 #ifndef __native_client__
2354 mono_install_assembly_load_hook (load_aot_module, NULL);
2356 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2358 char *lastaot = g_getenv ("MONO_LASTAOT");
2360 mono_last_aot_method = atoi (lastaot);
2367 mono_aot_cleanup (void)
2369 if (aot_jit_icall_hash)
2370 g_hash_table_destroy (aot_jit_icall_hash);
2372 g_hash_table_destroy (aot_modules);
2376 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2383 info->vtable_size = decode_value (buf, &buf);
2384 if (info->vtable_size == -1)
2387 flags = decode_value (buf, &buf);
2388 info->ghcimpl = (flags >> 0) & 0x1;
2389 info->has_finalize = (flags >> 1) & 0x1;
2390 info->has_cctor = (flags >> 2) & 0x1;
2391 info->has_nested_classes = (flags >> 3) & 0x1;
2392 info->blittable = (flags >> 4) & 0x1;
2393 info->has_references = (flags >> 5) & 0x1;
2394 info->has_static_refs = (flags >> 6) & 0x1;
2395 info->no_special_static_fields = (flags >> 7) & 0x1;
2396 info->is_generic_container = (flags >> 8) & 0x1;
2398 if (info->has_cctor) {
2399 res = decode_method_ref (module, &ref, buf, &buf, &error);
2400 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
2403 info->cctor_token = ref.token;
2405 if (info->has_finalize) {
2406 res = decode_method_ref (module, &ref, buf, &buf, &error);
2407 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
2410 info->finalize_image = ref.image;
2411 info->finalize_token = ref.token;
2414 info->instance_size = decode_value (buf, &buf);
2415 info->class_size = decode_value (buf, &buf);
2416 info->packing_size = decode_value (buf, &buf);
2417 info->min_align = decode_value (buf, &buf);
2425 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot, MonoError *error)
2428 MonoClass *klass = vtable->klass;
2429 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2431 MonoCachedClassInfo class_info;
2436 MonoError inner_error;
2440 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2443 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2446 err = decode_cached_class_info (amodule, &class_info, p, &p);
2450 for (i = 0; i < slot; ++i) {
2451 decode_method_ref (amodule, &ref, p, &p, &inner_error);
2452 mono_error_cleanup (&inner_error); /* FIXME don't swallow the error */
2455 res = decode_method_ref (amodule, &ref, p, &p, &inner_error);
2456 mono_error_cleanup (&inner_error); /* FIXME don't swallow the error */
2459 if (ref.no_aot_trampoline)
2462 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2465 addr = mono_aot_get_method_from_token (domain, ref.image, ref.token, error);
2470 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2472 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2476 if (klass->rank || !klass->type_token || !amodule)
2479 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2481 err = decode_cached_class_info (amodule, res, p, &p);
2489 * mono_aot_get_class_from_name:
2491 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2492 * using a cache stored in the AOT file.
2493 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2495 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2499 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2501 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
2502 guint16 *table, *entry;
2505 char full_name_buf [1024];
2507 const char *name2, *name_space2;
2509 guint32 cols [MONO_TYPEDEF_SIZE];
2510 GHashTable *nspace_table;
2512 if (!amodule || !amodule->class_name_table)
2515 amodule_lock (amodule);
2519 /* First look in the cache */
2520 if (!amodule->name_cache)
2521 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2522 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2524 *klass = (MonoClass *)g_hash_table_lookup (nspace_table, name);
2526 amodule_unlock (amodule);
2531 table_size = amodule->class_name_table [0];
2532 table = amodule->class_name_table + 1;
2534 if (name_space [0] == '\0')
2535 full_name = g_strdup_printf ("%s", name);
2537 if (strlen (name_space) + strlen (name) < 1000) {
2538 sprintf (full_name_buf, "%s.%s", name_space, name);
2539 full_name = full_name_buf;
2541 full_name = g_strdup_printf ("%s.%s", name_space, name);
2544 hash = mono_metadata_str_hash (full_name) % table_size;
2545 if (full_name != full_name_buf)
2548 entry = &table [hash * 2];
2550 if (entry [0] != 0) {
2551 t = &image->tables [MONO_TABLE_TYPEDEF];
2554 guint32 index = entry [0];
2555 guint32 next = entry [1];
2556 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2558 name_table_accesses ++;
2560 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2562 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2563 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2565 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2567 amodule_unlock (amodule);
2568 *klass = mono_class_get_checked (image, token, &error);
2569 if (!mono_error_ok (&error))
2570 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2574 amodule_lock (amodule);
2575 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2576 if (!nspace_table) {
2577 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2578 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2580 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2581 amodule_unlock (amodule);
2587 entry = &table [next * 2];
2594 amodule_unlock (amodule);
2599 /* Compute the boundaries of the LLVM code for AMODULE. */
2601 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end)
2604 int version, fde_count;
2607 if (amodule->info.llvm_get_method) {
2608 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2610 *code_start = (guint8 *)get_method (-1);
2611 *code_end = (guint8 *)get_method (-2);
2613 g_assert (*code_end > *code_start);
2617 g_assert (amodule->mono_eh_frame);
2619 p = amodule->mono_eh_frame;
2621 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2625 g_assert (version == 3);
2628 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2630 fde_count = *(guint32*)p;
2634 if (fde_count > 0) {
2635 *code_start = (guint8 *)amodule->methods [table [0]];
2636 *code_end = (guint8*)amodule->methods [table [(fde_count - 1) * 2]] + table [fde_count * 2];
2644 is_llvm_code (MonoAotModule *amodule, guint8 *code)
2646 if ((guint8*)code >= amodule->llvm_code_start && (guint8*)code < amodule->llvm_code_end)
2653 is_thumb_code (MonoAotModule *amodule, guint8 *code)
2655 if (is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_THUMB))
2662 * decode_llvm_mono_eh_frame:
2664 * Decode the EH information emitted by our modified LLVM compiler and construct a
2665 * MonoJitInfo structure from it.
2666 * LOCKING: Acquires the domain lock.
2669 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
2670 MonoMethod *method, guint8 *code, guint32 code_len,
2671 MonoJitExceptionInfo *clauses, int num_clauses,
2672 MonoJitInfoFlags flags,
2674 int *this_reg, int *this_offset)
2676 guint8 *p, *code1, *code2;
2677 guint8 *fde, *cie, *code_start, *code_end;
2678 int version, fde_count;
2680 int i, pos, left, right;
2681 MonoJitExceptionInfo *ei;
2682 guint32 fde_len, ei_len, nested_len, nindex;
2683 gpointer *type_info;
2685 MonoLLVMFDEInfo info;
2687 if (!amodule->mono_eh_frame) {
2688 jinfo = (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, num_clauses, 0));
2689 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, 0);
2690 memcpy (jinfo->clauses, clauses, num_clauses * sizeof (MonoJitExceptionInfo));
2694 g_assert (amodule->mono_eh_frame && code);
2696 p = amodule->mono_eh_frame;
2698 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2702 g_assert (version == 3);
2704 /* func_encoding = *p; */
2706 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2708 fde_count = *(guint32*)p;
2712 /* There is +1 entry in the table */
2713 cie = p + ((fde_count + 1) * 8);
2715 /* Binary search in the table to find the entry for code */
2719 pos = (left + right) / 2;
2721 /* The table contains method index/fde offset pairs */
2722 g_assert (table [(pos * 2)] != -1);
2723 code1 = (guint8 *)amodule->methods [table [(pos * 2)]];
2724 if (pos + 1 == fde_count) {
2725 code2 = amodule->llvm_code_end;
2727 g_assert (table [(pos + 1) * 2] != -1);
2728 code2 = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2733 else if (code >= code2)
2739 code_start = (guint8 *)amodule->methods [table [(pos * 2)]];
2740 if (pos + 1 == fde_count) {
2741 /* The +1 entry in the table contains the length of the last method */
2742 int len = table [(pos + 1) * 2];
2743 code_end = code_start + len;
2745 code_end = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2748 code_len = code_end - code_start;
2750 g_assert (code >= code_start && code < code_end);
2752 if (is_thumb_code (amodule, code_start))
2753 /* Clear thumb flag */
2754 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2756 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2757 /* This won't overflow because there is +1 entry in the table */
2758 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2760 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info);
2762 ei_len = info.ex_info_len;
2763 type_info = info.type_info;
2764 *this_reg = info.this_reg;
2765 *this_offset = info.this_offset;
2767 /* Count number of nested clauses */
2769 for (i = 0; i < ei_len; ++i) {
2770 /* This might be unaligned */
2771 gint32 cindex1 = read32 (type_info [i]);
2774 for (l = nesting [cindex1]; l; l = l->next)
2779 * LLVM might represent one IL region with multiple regions, so have to
2780 * allocate a new JI.
2783 (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, ei_len + nested_len, 0));
2784 mono_jit_info_init (jinfo, method, code, code_len, flags, ei_len + nested_len, 0);
2786 jinfo->unwind_info = mono_cache_unwind_info (info.unw_info, info.unw_info_len);
2787 /* This signals that unwind_info points to a normal cached unwind info */
2788 jinfo->from_aot = 0;
2789 jinfo->from_llvm = 1;
2791 for (i = 0; i < ei_len; ++i) {
2793 * clauses contains the original IL exception info saved by the AOT
2794 * compiler, we have to combine that with the information produced by LLVM
2796 /* The type_info entries contain IL clause indexes */
2797 int clause_index = read32 (type_info [i]);
2798 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2799 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2801 g_assert (clause_index < num_clauses);
2802 jei->flags = orig_jei->flags;
2803 jei->data.catch_class = orig_jei->data.catch_class;
2805 jei->try_start = ei [i].try_start;
2806 jei->try_end = ei [i].try_end;
2807 jei->handler_start = ei [i].handler_start;
2808 jei->clause_index = clause_index;
2810 if (is_thumb_code (amodule, (guint8 *)jei->try_start)) {
2811 jei->try_start = (void*)((mgreg_t)jei->try_start & ~1);
2812 jei->try_end = (void*)((mgreg_t)jei->try_end & ~1);
2813 /* Make sure we transition to thumb when a handler starts */
2814 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2818 /* See exception_cb () in mini-llvm.c as to why this is needed */
2820 for (i = 0; i < ei_len; ++i) {
2821 gint32 cindex1 = read32 (type_info [i]);
2824 for (l = nesting [cindex1]; l; l = l->next) {
2825 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2826 MonoJitExceptionInfo *nesting_ei;
2827 MonoJitExceptionInfo *nesting_clause = &clauses [nesting_cindex];
2829 nesting_ei = &jinfo->clauses [nindex];
2832 memcpy (nesting_ei, &jinfo->clauses [i], sizeof (MonoJitExceptionInfo));
2833 nesting_ei->flags = nesting_clause->flags;
2834 nesting_ei->data.catch_class = nesting_clause->data.catch_class;
2835 nesting_ei->clause_index = nesting_cindex;
2838 g_assert (nindex == ei_len + nested_len);
2844 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2848 if (async_context) {
2849 res = mono_domain_alloc0_lock_free (domain, size);
2850 InterlockedExchangeAdd (&async_jit_info_size, size);
2852 res = mono_domain_alloc0 (domain, size);
2858 * LOCKING: Acquires the domain lock.
2859 * In async context, this is async safe.
2862 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2863 MonoMethod *method, guint8* ex_info,
2864 guint8 *code, guint32 code_len)
2867 int i, buf_len, num_clauses, len;
2869 MonoJitInfoFlags flags = JIT_INFO_NONE;
2870 guint unwind_info, eflags;
2871 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2872 gboolean from_llvm, has_gc_map;
2874 int try_holes_info_size, num_holes;
2875 int this_reg = 0, this_offset = 0;
2878 /* Load the method info from the AOT file */
2879 async = mono_thread_info_is_async_context ();
2882 eflags = decode_value (p, &p);
2883 has_generic_jit_info = (eflags & 1) != 0;
2884 has_dwarf_unwind_info = (eflags & 2) != 0;
2885 has_clauses = (eflags & 4) != 0;
2886 has_seq_points = (eflags & 8) != 0;
2887 from_llvm = (eflags & 16) != 0;
2888 has_try_block_holes = (eflags & 32) != 0;
2889 has_gc_map = (eflags & 64) != 0;
2890 has_arch_eh_jit_info = (eflags & 128) != 0;
2892 if (has_dwarf_unwind_info) {
2893 unwind_info = decode_value (p, &p);
2894 g_assert (unwind_info < (1 << 30));
2896 unwind_info = decode_value (p, &p);
2898 if (has_generic_jit_info)
2899 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2901 if (has_try_block_holes) {
2902 num_holes = decode_value (p, &p);
2903 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2904 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2906 num_holes = try_holes_info_size = 0;
2909 if (has_arch_eh_jit_info) {
2910 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2911 /* Overwrite the original code_len which includes alignment padding */
2912 code_len = decode_value (p, &p);
2915 /* Exception table */
2917 num_clauses = decode_value (p, &p);
2922 MonoJitExceptionInfo *clauses;
2929 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2932 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2933 nesting = g_new0 (GSList*, num_clauses);
2935 for (i = 0; i < num_clauses; ++i) {
2936 MonoJitExceptionInfo *ei = &clauses [i];
2938 ei->flags = decode_value (p, &p);
2940 if (decode_value (p, &p)) {
2941 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
2942 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2945 ei->clause_index = i;
2947 ei->try_offset = decode_value (p, &p);
2948 ei->try_len = decode_value (p, &p);
2949 ei->handler_offset = decode_value (p, &p);
2950 ei->handler_len = decode_value (p, &p);
2952 /* Read the list of nesting clauses */
2954 int nesting_index = decode_value (p, &p);
2955 if (nesting_index == -1)
2957 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2961 jinfo = decode_llvm_mono_eh_frame (amodule, domain, method, code, code_len, clauses, num_clauses, flags, nesting, &this_reg, &this_offset);
2964 for (i = 0; i < num_clauses; ++i)
2965 g_slist_free (nesting [i]);
2968 len = mono_jit_info_size (flags, num_clauses, num_holes);
2969 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
2970 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
2972 for (i = 0; i < jinfo->num_clauses; ++i) {
2973 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2975 ei->flags = decode_value (p, &p);
2977 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
2978 /* Not used for catch clauses */
2979 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
2980 ei->exvar_offset = decode_value (p, &p);
2982 ei->exvar_offset = decode_value (p, &p);
2985 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
2986 ei->data.filter = code + decode_value (p, &p);
2988 int len = decode_value (p, &p);
2994 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
2995 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3000 ei->try_start = code + decode_value (p, &p);
3001 ei->try_end = code + decode_value (p, &p);
3002 ei->handler_start = code + decode_value (p, &p);
3005 jinfo->unwind_info = unwind_info;
3006 jinfo->domain_neutral = 0;
3007 jinfo->from_aot = 1;
3010 if (has_try_block_holes) {
3011 MonoTryBlockHoleTableJitInfo *table;
3013 g_assert (jinfo->has_try_block_holes);
3015 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
3018 table->num_holes = (guint16)num_holes;
3019 for (i = 0; i < num_holes; ++i) {
3020 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
3021 hole->clause = decode_value (p, &p);
3022 hole->length = decode_value (p, &p);
3023 hole->offset = decode_value (p, &p);
3027 if (has_arch_eh_jit_info) {
3028 MonoArchEHJitInfo *eh_info;
3030 g_assert (jinfo->has_arch_eh_info);
3032 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
3033 eh_info->stack_size = decode_value (p, &p);
3034 eh_info->epilog_size = decode_value (p, &p);
3038 /* The rest is not needed in async mode */
3039 jinfo->async = TRUE;
3040 jinfo->d.aot_info = amodule;
3045 if (has_generic_jit_info) {
3046 MonoGenericJitInfo *gi;
3049 g_assert (jinfo->has_generic_jit_info);
3051 gi = mono_jit_info_get_generic_jit_info (jinfo);
3054 gi->nlocs = decode_value (p, &p);
3056 gi->locations = (MonoDwarfLocListEntry *)alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
3057 for (i = 0; i < gi->nlocs; ++i) {
3058 MonoDwarfLocListEntry *entry = &gi->locations [i];
3060 entry->is_reg = decode_value (p, &p);
3061 entry->reg = decode_value (p, &p);
3063 entry->offset = decode_value (p, &p);
3065 entry->from = decode_value (p, &p);
3066 entry->to = decode_value (p, &p);
3071 gi->has_this = this_reg != -1;
3072 gi->this_reg = this_reg;
3073 gi->this_offset = this_offset;
3075 gi->has_this = decode_value (p, &p);
3076 gi->this_reg = decode_value (p, &p);
3077 gi->this_offset = decode_value (p, &p);
3081 len = decode_value (p, &p);
3085 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p, &error);
3086 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3089 gi->generic_sharing_context = alloc0_jit_info_data (domain, sizeof (MonoGenericSharingContext), async);
3090 if (decode_value (p, &p)) {
3092 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
3094 gsctx->is_gsharedvt = TRUE;
3098 if (method && has_seq_points) {
3099 MonoSeqPointInfo *seq_points;
3101 p += mono_seq_point_info_read (&seq_points, p, FALSE);
3103 mono_domain_lock (domain);
3104 /* This could be set already since this function can be called more than once for the same method */
3105 if (!g_hash_table_lookup (domain_jit_info (domain)->seq_points, method))
3106 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
3108 mono_seq_point_info_free (seq_points);
3109 mono_domain_unlock (domain);
3112 /* Load debug info */
3113 buf_len = decode_value (p, &p);
3115 mono_debug_add_aot_method (domain, method, code, p, buf_len);
3119 int map_size = decode_value (p, &p);
3120 /* The GC map requires 4 bytes of alignment */
3121 while ((guint64)(gsize)p % 4)
3127 if (amodule != jinfo->d.method->klass->image->aot_module) {
3130 ji_to_amodule = g_hash_table_new (NULL, NULL);
3131 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
3139 amodule_contains_code_addr (MonoAotModule *amodule, guint8 *code)
3141 return (code >= amodule->jit_code_start && code <= amodule->jit_code_end) ||
3142 (code >= amodule->llvm_code_start && code <= amodule->llvm_code_end);
3146 * mono_aot_get_unwind_info:
3148 * Return a pointer to the DWARF unwind info belonging to JI.
3151 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
3153 MonoAotModule *amodule;
3155 guint8 *code = (guint8 *)ji->code_start;
3158 amodule = (MonoAotModule *)ji->d.aot_info;
3160 amodule = (MonoAotModule *)jinfo_get_method (ji)->klass->image->aot_module;
3162 g_assert (ji->from_aot);
3164 if (!amodule_contains_code_addr (amodule, code)) {
3165 /* ji belongs to a different aot module than amodule */
3167 g_assert (ji_to_amodule);
3168 amodule = (MonoAotModule *)g_hash_table_lookup (ji_to_amodule, ji);
3170 g_assert (amodule_contains_code_addr (amodule, code));
3174 p = amodule->unwind_info + ji->unwind_info;
3175 *unwind_info_len = decode_value (p, &p);
3180 msort_method_addresses_internal (gpointer *array, int *indexes, int lo, int hi, gpointer *scratch, int *scratch_indexes)
3182 int mid = (lo + hi) / 2;
3189 for (i = lo; i < hi; ++i)
3190 if (array [i] > array [i + 1])
3193 /* Already sorted */
3197 msort_method_addresses_internal (array, indexes, lo, mid, scratch, scratch_indexes);
3198 msort_method_addresses_internal (array, indexes, mid + 1, hi, scratch, scratch_indexes);
3200 if (array [mid] < array [mid + 1])
3206 for (i = lo; i <= hi; i ++) {
3207 if (t_lo <= mid && ((t_hi > hi) || array [t_lo] < array [t_hi])) {
3208 scratch [i] = array [t_lo];
3209 scratch_indexes [i] = indexes [t_lo];
3212 scratch [i] = array [t_hi];
3213 scratch_indexes [i] = indexes [t_hi];
3217 for (i = lo; i <= hi; ++i) {
3218 array [i] = scratch [i];
3219 indexes [i] = scratch_indexes [i];
3224 msort_method_addresses (gpointer *array, int *indexes, int len)
3227 int *scratch_indexes;
3229 scratch = g_new (gpointer, len);
3230 scratch_indexes = g_new (int, len);
3231 msort_method_addresses_internal (array, indexes, 0, len - 1, scratch, scratch_indexes);
3233 g_free (scratch_indexes);
3237 * mono_aot_find_jit_info:
3239 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3240 * to the jit info tables.
3241 * FIXME: Large sizes in the lock free allocator
3244 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3247 int pos, left, right, code_len;
3248 int method_index, table_len;
3250 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
3251 MonoMethod *method = NULL;
3253 guint8 *code, *ex_info, *p;
3257 guint8 *code1, *code2;
3264 nmethods = amodule->info.nmethods;
3266 if (domain != mono_get_root_domain ())
3270 if (!amodule_contains_code_addr (amodule, (guint8 *)addr))
3273 async = mono_thread_info_is_async_context ();
3275 /* Compute a sorted table mapping code to method indexes. */
3276 if (!amodule->sorted_methods) {
3278 gpointer *methods = g_new0 (gpointer, nmethods);
3279 int *method_indexes = g_new0 (int, nmethods);
3280 int methods_len = 0;
3282 for (i = 0; i < nmethods; ++i) {
3283 /* Skip the -1 entries to speed up sorting */
3284 if (amodule->methods [i] == GINT_TO_POINTER (-1))
3286 methods [methods_len] = amodule->methods [i];
3287 method_indexes [methods_len] = i;
3290 /* Use a merge sort as this is mostly sorted */
3291 msort_method_addresses (methods, method_indexes, methods_len);
3292 for (i = 0; i < methods_len -1; ++i)
3293 g_assert (methods [i] <= methods [i + 1]);
3294 amodule->sorted_methods_len = methods_len;
3295 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_methods, methods, NULL) != NULL)
3296 /* Somebody got in before us */
3298 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_method_indexes, method_indexes, NULL) != NULL)
3299 /* Somebody got in before us */
3300 g_free (method_indexes);
3303 /* Binary search in the sorted_methods table */
3304 methods = amodule->sorted_methods;
3305 methods_len = amodule->sorted_methods_len;
3306 code = (guint8 *)addr;
3308 right = methods_len;
3310 pos = (left + right) / 2;
3312 code1 = (guint8 *)methods [pos];
3313 if (pos + 1 == methods_len) {
3314 if (code1 >= amodule->jit_code_start && code1 < amodule->jit_code_end)
3315 code2 = amodule->jit_code_end;
3317 code2 = amodule->llvm_code_end;
3319 code2 = (guint8 *)methods [pos + 1];
3324 else if (code >= code2)
3330 g_assert (addr >= methods [pos]);
3331 if (pos + 1 < methods_len)
3332 g_assert (addr < methods [pos + 1]);
3333 method_index = amodule->sorted_method_indexes [pos];
3335 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3337 JitInfoMap *table = amodule->async_jit_info_table;
3341 len = table [0].method_index;
3342 for (i = 1; i < len; ++i) {
3343 if (table [i].method_index == method_index)
3344 return table [i].jinfo;
3349 code = (guint8 *)amodule->methods [method_index];
3350 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3352 if (pos == methods_len - 1) {
3353 if (code >= amodule->jit_code_start && code < amodule->jit_code_end)
3354 code_len = amodule->jit_code_end - code;
3356 code_len = amodule->llvm_code_end - code;
3358 code_len = (guint8*)methods [pos + 1] - (guint8*)methods [pos];
3361 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3363 /* Might be a wrapper/extra method */
3365 if (amodule->extra_methods) {
3366 amodule_lock (amodule);
3367 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3368 amodule_unlock (amodule);
3374 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3376 * This is hit for extra methods which are called directly, so they are
3377 * not in amodule->extra_methods.
3379 table_len = amodule->extra_method_info_offsets [0];
3380 table = amodule->extra_method_info_offsets + 1;
3387 pos = ((left + right) / 2);
3389 g_assert (pos < table_len);
3391 if (table [pos * 2] < method_index)
3393 else if (table [pos * 2] > method_index)
3399 p = amodule->blob + table [(pos * 2) + 1];
3400 method = decode_resolve_method_ref (amodule, p, &p, &error);
3401 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3403 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3407 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3408 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3410 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3417 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3419 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code, code_len);
3421 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3423 /* Add it to the normal JitInfo tables */
3425 JitInfoMap *old_table, *new_table;
3429 * Use a simple inmutable table with linear search to cache async jit info entries.
3430 * This assumes that the number of entries is small.
3433 /* Copy the table, adding a new entry at the end */
3434 old_table = amodule->async_jit_info_table;
3436 len = old_table[0].method_index;
3439 new_table = (JitInfoMap *)alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3441 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3442 new_table [0].method_index = len + 1;
3443 new_table [len].method_index = method_index;
3444 new_table [len].jinfo = jinfo;
3446 mono_memory_barrier ();
3447 if (InterlockedCompareExchangePointer ((volatile gpointer *)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3451 mono_jit_info_table_add (domain, jinfo);
3454 if ((guint8*)addr >= (guint8*)jinfo->code_start + jinfo->code_size)
3455 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3462 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3471 case MONO_PATCH_INFO_METHOD:
3472 case MONO_PATCH_INFO_METHOD_JUMP:
3473 case MONO_PATCH_INFO_ICALL_ADDR:
3474 case MONO_PATCH_INFO_ICALL_ADDR_CALL:
3475 case MONO_PATCH_INFO_METHOD_RGCTX:
3476 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3480 res = decode_method_ref (aot_module, &ref, p, &p, &error);
3481 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3485 if (!ref.method && !mono_aot_only && !ref.no_aot_trampoline && (ji->type == MONO_PATCH_INFO_METHOD) && (mono_metadata_token_table (ref.token) == MONO_TABLE_METHOD)) {
3486 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3487 ji->type = MONO_PATCH_INFO_ABS;
3491 ji->data.method = ref.method;
3494 ji->data.method = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
3495 if (!ji->data.method)
3496 g_error ("AOT Runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3498 g_assert (ji->data.method);
3499 mono_class_init (ji->data.method->klass);
3503 case MONO_PATCH_INFO_INTERNAL_METHOD:
3504 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3505 guint32 len = decode_value (p, &p);
3507 ji->data.name = (char*)p;
3511 case MONO_PATCH_INFO_METHODCONST:
3513 ji->data.method = decode_resolve_method_ref (aot_module, p, &p, &error);
3514 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3515 if (!ji->data.method)
3518 case MONO_PATCH_INFO_VTABLE:
3519 case MONO_PATCH_INFO_CLASS:
3520 case MONO_PATCH_INFO_IID:
3521 case MONO_PATCH_INFO_ADJUSTED_IID:
3523 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3524 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3525 if (!ji->data.klass)
3528 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3529 ji->data.del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3530 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p, &error);
3531 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3532 if (!ji->data.del_tramp->klass)
3534 if (decode_value (p, &p)) {
3535 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3536 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3537 if (!ji->data.del_tramp->method)
3540 ji->data.del_tramp->is_virtual = decode_value (p, &p) ? TRUE : FALSE;
3542 case MONO_PATCH_INFO_IMAGE:
3543 ji->data.image = load_image (aot_module, decode_value (p, &p), &error);
3544 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3545 if (!ji->data.image)
3548 case MONO_PATCH_INFO_FIELD:
3549 case MONO_PATCH_INFO_SFLDA:
3551 ji->data.field = decode_field_info (aot_module, p, &p);
3552 if (!ji->data.field)
3555 case MONO_PATCH_INFO_SWITCH:
3556 ji->data.table = (MonoJumpInfoBBTable *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3557 ji->data.table->table_size = decode_value (p, &p);
3558 table = (void **)mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3559 ji->data.table->table = (MonoBasicBlock**)table;
3560 for (i = 0; i < ji->data.table->table_size; i++)
3561 table [i] = (gpointer)(gssize)decode_value (p, &p);
3563 case MONO_PATCH_INFO_R4: {
3566 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3567 val = decode_value (p, &p);
3568 *(float*)ji->data.target = *(float*)&val;
3571 case MONO_PATCH_INFO_R8: {
3575 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3577 val [0] = decode_value (p, &p);
3578 val [1] = decode_value (p, &p);
3579 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3580 *(double*)ji->data.target = *(double*)&v;
3583 case MONO_PATCH_INFO_LDSTR:
3584 image = load_image (aot_module, decode_value (p, &p), &error);
3585 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3588 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3590 case MONO_PATCH_INFO_RVA:
3591 case MONO_PATCH_INFO_DECLSEC:
3592 case MONO_PATCH_INFO_LDTOKEN:
3593 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3595 image = load_image (aot_module, decode_value (p, &p), &error);
3596 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3599 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3601 ji->data.token->has_context = decode_value (p, &p);
3602 if (ji->data.token->has_context) {
3603 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p, &error);
3604 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3609 case MONO_PATCH_INFO_EXC_NAME:
3610 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3611 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3612 if (!ji->data.klass)
3614 ji->data.name = ji->data.klass->name;
3616 case MONO_PATCH_INFO_METHOD_REL:
3617 ji->data.offset = decode_value (p, &p);
3619 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3620 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3621 case MONO_PATCH_INFO_GC_NURSERY_START:
3622 case MONO_PATCH_INFO_GC_NURSERY_BITS:
3624 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3625 ji->data.index = decode_value (p, &p);
3627 case MONO_PATCH_INFO_RGCTX_FETCH:
3628 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
3630 MonoJumpInfoRgctxEntry *entry;
3631 guint32 offset, val;
3634 offset = decode_value (p, &p);
3635 val = decode_value (p, &p);
3637 entry = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3638 p2 = aot_module->blob + offset;
3639 entry->method = decode_resolve_method_ref (aot_module, p2, &p2, &error);
3640 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3641 entry->info_type = (MonoRgctxInfoType)((val >> 1) & 0xff);
3642 entry->data = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3643 entry->data->type = (MonoJumpInfoType)((val >> 9) & 0xff);
3644 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3646 res = decode_patch (aot_module, mp, entry->data, p, &p);
3649 ji->data.rgctx_entry = entry;
3652 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3653 case MONO_PATCH_INFO_AOT_MODULE:
3654 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
3656 case MONO_PATCH_INFO_SIGNATURE:
3657 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
3658 ji->data.target = decode_signature (aot_module, p, &p);
3660 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3661 MonoJumpInfoGSharedVtCall *info = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3662 info->sig = decode_signature (aot_module, p, &p);
3663 g_assert (info->sig);
3664 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3665 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3667 ji->data.target = info;
3670 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3671 MonoGSharedVtMethodInfo *info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3674 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3675 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3677 info->num_entries = decode_value (p, &p);
3678 info->count_entries = info->num_entries;
3679 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3680 for (i = 0; i < info->num_entries; ++i) {
3681 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
3683 template_->info_type = (MonoRgctxInfoType)decode_value (p, &p);
3684 switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) {
3685 case MONO_PATCH_INFO_CLASS: {
3686 MonoClass *klass = decode_klass_ref (aot_module, p, &p, &error);
3687 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3690 template_->data = &klass->byval_arg;
3693 case MONO_PATCH_INFO_FIELD:
3694 template_->data = decode_field_info (aot_module, p, &p);
3695 if (!template_->data)
3699 g_assert_not_reached ();
3703 ji->data.target = info;
3706 case MONO_PATCH_INFO_LDSTR_LIT: {
3707 int len = decode_value (p, &p);
3710 s = (char *)mono_mempool_alloc0 (mp, len + 1);
3711 memcpy (s, p, len + 1);
3714 ji->data.target = s;
3717 case MONO_PATCH_INFO_VIRT_METHOD: {
3718 MonoJumpInfoVirtMethod *info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
3720 info->klass = decode_klass_ref (aot_module, p, &p, &error);
3721 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3723 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3724 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3726 ji->data.target = info;
3729 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
3730 case MONO_PATCH_INFO_JIT_THREAD_ATTACH:
3732 case MONO_PATCH_INFO_GET_TLS_TRAMP:
3733 case MONO_PATCH_INFO_SET_TLS_TRAMP:
3734 case MONO_PATCH_INFO_AOT_JIT_INFO:
3735 ji->data.index = decode_value (p, &p);
3738 g_warning ("unhandled type %d", ji->type);
3739 g_assert_not_reached ();
3753 * Decode a list of patches identified by the got offsets in GOT_OFFSETS. Return an array of
3754 * MonoJumpInfo structures allocated from MP.
3756 static MonoJumpInfo*
3757 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets)
3759 MonoJumpInfo *patches;
3762 guint32 *got_info_offsets;
3767 got = amodule->llvm_got;
3768 got_info_offsets = (guint32 *)amodule->llvm_got_info_offsets;
3771 got_info_offsets = (guint32 *)amodule->got_info_offsets;
3774 patches = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3775 for (i = 0; i < n_patches; ++i) {
3776 guint8 *p = amodule->blob + mono_aot_get_offset (got_info_offsets, got_offsets [i]);
3779 ji->type = (MonoJumpInfoType)decode_value (p, &p);
3781 /* See load_method () for SFLDA */
3782 if (got && got [got_offsets [i]] && ji->type != MONO_PATCH_INFO_SFLDA) {
3783 /* Already loaded */
3785 res = decode_patch (amodule, mp, ji, p, &p);
3794 static MonoJumpInfo*
3795 load_patch_info (MonoAotModule *amodule, MonoMemPool *mp, int n_patches,
3796 gboolean llvm, guint32 **got_slots,
3797 guint8 *buf, guint8 **endbuf)
3799 MonoJumpInfo *patches;
3805 *got_slots = (guint32 *)g_malloc (sizeof (guint32) * n_patches);
3806 for (pindex = 0; pindex < n_patches; ++pindex) {
3807 (*got_slots)[pindex] = decode_value (p, &p);
3810 patches = decode_patches (amodule, mp, n_patches, llvm, *got_slots);
3812 g_free (*got_slots);
3822 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3825 * Jump addresses cannot be patched by the trampoline code since it
3826 * does not have access to the caller's address. Instead, we collect
3827 * the addresses of the GOT slots pointing to a method, and patch
3828 * them after the method has been compiled.
3830 MonoJitDomainInfo *info = domain_jit_info (domain);
3833 mono_domain_lock (domain);
3834 if (!info->jump_target_got_slot_hash)
3835 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3836 list = (GSList *)g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3837 list = g_slist_prepend (list, got_slot);
3838 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3839 mono_domain_unlock (domain);
3845 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3846 * pointer to the native code of the method, or NULL if not found.
3847 * METHOD might not be set if the caller only has the image/token info.
3850 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index,
3853 MonoJitInfo *jinfo = NULL;
3854 guint8 *code = NULL, *info;
3859 init_amodule_got (amodule);
3861 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE) {
3863 /* The caller cannot handle this */
3864 g_assert_not_reached ();
3868 if (domain != mono_get_root_domain ())
3869 /* Non shared AOT code can't be used in other appdomains */
3872 if (amodule->out_of_date)
3875 if (amodule->info.llvm_get_method) {
3877 * Obtain the method address by calling a generated function in the LLVM module.
3879 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
3880 code = (guint8 *)get_method (method_index);
3885 if (amodule->methods [method_index] == GINT_TO_POINTER (-1)) {
3886 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3890 method = mono_get_method_checked (image, token, NULL, NULL, error);
3894 full_name = mono_method_full_name (method, TRUE);
3895 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3900 code = (guint8 *)amodule->methods [method_index];
3903 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3905 if (!amodule->methods_loaded) {
3906 amodule_lock (amodule);
3907 if (!amodule->methods_loaded) {
3910 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3911 mono_memory_barrier ();
3912 amodule->methods_loaded = loaded;
3914 amodule_unlock (amodule);
3917 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3920 if (mono_last_aot_method != -1) {
3921 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3923 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3925 method = mono_get_method_checked (image, token, NULL, NULL, error);
3930 char *name = mono_method_full_name (method, TRUE);
3931 g_print ("LAST AOT METHOD: %s.\n", name);
3934 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3939 if (!(is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) ||
3940 (mono_llvm_only && method && method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED)) {
3941 res = init_method (amodule, method_index, method, NULL, NULL, error);
3946 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3950 method = mono_get_method_checked (image, token, NULL, NULL, error);
3955 full_name = mono_method_full_name (method, TRUE);
3958 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3960 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
3964 amodule_lock (amodule);
3968 InterlockedIncrement (&mono_jit_stats.methods_aot);
3970 if (method && method->wrapper_type)
3971 g_hash_table_insert (amodule->method_to_code, method, code);
3973 /* Commit changes since methods_loaded is accessed outside the lock */
3974 mono_memory_barrier ();
3976 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
3978 amodule_unlock (amodule);
3980 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
3984 method = mono_get_method_checked (amodule->assembly->image, token, NULL, NULL, error);
3988 mono_profiler_method_jit (method);
3989 jinfo = mono_jit_info_table_find (domain, (char*)code);
3991 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4004 find_aot_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, guint32 hash_full)
4007 guint32 table_size, entry_size, hash;
4008 guint32 *table, *entry;
4010 static guint32 n_extra_decodes;
4012 if (!amodule || amodule->out_of_date)
4015 table_size = amodule->extra_method_table [0];
4016 hash = hash_full % table_size;
4017 table = amodule->extra_method_table + 1;
4020 entry = &table [hash * entry_size];
4027 guint32 key = entry [0];
4028 guint32 value = entry [1];
4029 guint32 next = entry [entry_size - 1];
4033 p = amodule->blob + key;
4036 amodule_lock (amodule);
4037 if (!amodule->method_ref_to_method)
4038 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
4039 m = (MonoMethod *)g_hash_table_lookup (amodule->method_ref_to_method, p);
4040 amodule_unlock (amodule);
4042 m = decode_resolve_method_ref_with_target (amodule, method, p, &p, &error);
4043 mono_error_cleanup (&error); /* FIXME don't swallow the error */
4045 * Can't catche runtime invoke wrappers since it would break
4046 * the check in decode_method_ref_with_target ().
4048 if (m && m->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
4049 amodule_lock (amodule);
4050 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
4051 amodule_unlock (amodule);
4059 /* Methods decoded needlessly */
4061 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
4066 entry = &table [next * entry_size];
4075 add_module_cb (gpointer key, gpointer value, gpointer user_data)
4077 g_ptr_array_add ((GPtrArray*)user_data, value);
4083 * Try finding METHOD in the extra_method table in all AOT images.
4084 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
4085 * module where the method was found.
4088 find_aot_method (MonoMethod *method, MonoAotModule **out_amodule)
4093 guint32 hash = mono_aot_method_hash (method);
4095 /* Try the method's module first */
4096 *out_amodule = (MonoAotModule *)method->klass->image->aot_module;
4097 index = find_aot_method_in_amodule ((MonoAotModule *)method->klass->image->aot_module, method, hash);
4098 if (index != 0xffffff)
4102 * Try all other modules.
4103 * This is needed because generic instances klass->image points to the image
4104 * containing the generic definition, but the native code is generated to the
4105 * AOT image which contains the reference.
4108 /* Make a copy to avoid doing the search inside the aot lock */
4109 modules = g_ptr_array_new ();
4111 g_hash_table_foreach (aot_modules, add_module_cb, modules);
4115 for (i = 0; i < modules->len; ++i) {
4116 MonoAotModule *amodule = (MonoAotModule *)g_ptr_array_index (modules, i);
4118 if (amodule != method->klass->image->aot_module)
4119 index = find_aot_method_in_amodule (amodule, method, hash);
4120 if (index != 0xffffff) {
4121 *out_amodule = amodule;
4126 g_ptr_array_free (modules, TRUE);
4132 mono_aot_find_method_index (MonoMethod *method)
4134 MonoAotModule *out_amodule;
4135 return find_aot_method (method, &out_amodule);
4139 init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context, MonoError *error)
4141 MonoDomain *domain = mono_domain_get ();
4143 MonoClass *klass_to_run_ctor = NULL;
4144 gboolean from_plt = method == NULL;
4145 int pindex, n_patches;
4147 MonoJitInfo *jinfo = NULL;
4148 guint8 *code, *info;
4152 code = (guint8 *)amodule->methods [method_index];
4153 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
4157 //does the method's class has a cctor?
4158 if (decode_value (p, &p) == 1)
4159 klass_to_run_ctor = decode_klass_ref (amodule, p, &p, error);
4163 //FIXME old code would use the class from @method if not null and ignore the one encoded. I don't know if we need to honor that -- @kumpera
4165 klass_to_run_ctor = method->klass;
4167 n_patches = decode_value (p, &p);
4170 MonoJumpInfo *patches;
4175 mp = mono_mempool_new ();
4177 if ((gpointer)code >= amodule->info.jit_code_start && (gpointer)code <= amodule->info.jit_code_end) {
4182 got = amodule->llvm_got;
4186 patches = load_patch_info (amodule, mp, n_patches, llvm, &got_slots, p, &p);
4187 if (patches == NULL) {
4188 mono_mempool_destroy (mp);
4192 for (pindex = 0; pindex < n_patches; ++pindex) {
4193 MonoJumpInfo *ji = &patches [pindex];
4197 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
4198 * been initialized by load_method () for a static cctor before the cctor has
4199 * finished executing (#23242).
4201 if (!got [got_slots [pindex]] || ji->type == MONO_PATCH_INFO_SFLDA) {
4202 /* In llvm-only made, we might encounter shared methods */
4203 if (mono_llvm_only && ji->type == MONO_PATCH_INFO_METHOD && mono_method_check_context_used (ji->data.method)) {
4205 ji->data.method = mono_class_inflate_generic_method_checked (ji->data.method, context, error);
4206 if (!mono_error_ok (error)) {
4208 mono_mempool_destroy (mp);
4212 /* This cannot be resolved in mono_resolve_patch_target () */
4213 if (ji->type == MONO_PATCH_INFO_AOT_JIT_INFO) {
4214 // FIXME: Lookup using the index
4215 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4216 ji->type = MONO_PATCH_INFO_ABS;
4217 ji->data.target = jinfo;
4219 addr = mono_resolve_patch_target (method, domain, code, ji, TRUE, error);
4220 if (!mono_error_ok (error)) {
4222 mono_mempool_destroy (mp);
4225 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4226 addr = mono_create_ftnptr (domain, addr);
4227 mono_memory_barrier ();
4228 got [got_slots [pindex]] = addr;
4229 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4230 register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
4232 ji->type = MONO_PATCH_INFO_NONE;
4237 mono_mempool_destroy (mp);
4240 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
4241 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4243 gboolean inited_ok = TRUE;
4245 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, init_class), error);
4246 else if (from_plt && klass_to_run_ctor && !mono_class_is_gtd (klass_to_run_ctor))
4247 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, klass_to_run_ctor), error);
4261 init_llvmonly_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context)
4266 res = init_method (amodule, method_index, method, init_class, context, &error);
4267 if (!is_ok (&error)) {
4268 MonoException *ex = mono_error_convert_to_exception (&error);
4269 /* Its okay to raise in llvmonly mode */
4271 mono_llvm_throw_exception ((MonoObject*)ex);
4276 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
4278 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4280 init_llvmonly_method (amodule, method_index, NULL, NULL, NULL);
4284 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this_obj)
4286 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4288 MonoGenericContext *context;
4292 g_assert (this_obj);
4293 klass = this_obj->vtable->klass;
4295 amodule_lock (amodule);
4296 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4297 amodule_unlock (amodule);
4300 context = mono_method_get_context (method);
4303 init_llvmonly_method (amodule, method_index, NULL, klass, context);
4307 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
4309 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4310 MonoGenericContext context = { NULL, NULL };
4311 MonoClass *klass = rgctx->class_vtable->klass;
4313 if (mono_class_is_ginst (klass))
4314 context.class_inst = mono_class_get_generic_class (klass)->context.class_inst;
4315 else if (mono_class_is_gtd (klass))
4316 context.class_inst = mono_class_get_generic_container (klass)->context.class_inst;
4317 context.method_inst = rgctx->method_inst;
4319 init_llvmonly_method (amodule, method_index, NULL, rgctx->class_vtable->klass, &context);
4323 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
4325 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4327 MonoGenericContext *context;
4330 klass = vtable->klass;
4332 amodule_lock (amodule);
4333 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4334 amodule_unlock (amodule);
4337 context = mono_method_get_context (method);
4340 init_llvmonly_method (amodule, method_index, NULL, klass, context);
4344 * mono_aot_get_method_checked:
4346 * Return a pointer to the AOTed native code for METHOD if it can be found,
4348 * On platforms with function pointers, this doesn't return a function pointer.
4351 mono_aot_get_method_checked (MonoDomain *domain, MonoMethod *method, MonoError *error)
4353 MonoClass *klass = method->klass;
4354 MonoMethod *orig_method = method;
4355 guint32 method_index;
4356 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
4358 gboolean cache_result = FALSE;
4359 MonoError inner_error;
4363 if (domain != mono_get_root_domain ())
4364 /* Non shared AOT code can't be used in other appdomains */
4367 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
4368 /* This cannot be AOTed during startup, so do it now */
4369 if (!mscorlib_aot_loaded) {
4370 mscorlib_aot_loaded = TRUE;
4371 load_aot_module (klass->image->assembly, NULL);
4372 amodule = (MonoAotModule *)klass->image->aot_module;
4379 if (amodule->out_of_date)
4382 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4383 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4384 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4385 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
4389 * Use the original method instead of its invoke-with-check wrapper.
4390 * This is not a problem when using full-aot, since it doesn't support
4393 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4394 return mono_aot_get_method_checked (domain, mono_marshal_method_from_wrapper (method), error);
4396 g_assert (klass->inited);
4398 /* Find method index */
4399 method_index = 0xffffff;
4400 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)) {
4401 MonoMethod *orig_method = method;
4403 * For generic methods, we store the fully shared instance in place of the
4406 method = mono_method_get_declaring_generic_method (method);
4407 method_index = mono_metadata_token_index (method->token) - 1;
4409 if (mono_llvm_only) {
4410 /* Needed by mono_aot_init_gshared_method_this () */
4411 /* orig_method is a random instance but it is enough to make init_method () work */
4412 amodule_lock (amodule);
4413 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), orig_method);
4414 amodule_unlock (amodule);
4416 } else if (method->is_inflated || !method->token) {
4417 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4418 amodule_lock (amodule);
4419 code = (guint8 *)g_hash_table_lookup (amodule->method_to_code, method);
4420 amodule_unlock (amodule);
4424 cache_result = TRUE;
4425 method_index = find_aot_method (method, &amodule);
4427 * Special case the ICollection<T> wrappers for arrays, as they cannot
4428 * be statically enumerated, and each wrapper ends up calling the same
4431 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
4432 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4434 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4435 mono_error_cleanup (&inner_error);
4441 * Special case Array.GetGenericValueImpl which is a generic icall.
4442 * Generic sharing currently can't handle it, but the icall returns data using
4443 * an out parameter, so the managed-to-native wrappers can share the same code.
4445 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
4447 MonoGenericContext ctx;
4448 MonoType *args [16];
4450 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
4451 /* Avoid recursion */
4454 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
4457 memset (&ctx, 0, sizeof (ctx));
4458 args [0] = &mono_defaults.object_class->byval_arg;
4459 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4461 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, error), TRUE, TRUE);
4463 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error)); /* FIXME don't swallow the error */
4466 * Get the code for the <object> instantiation which should be emitted into
4467 * the mscorlib aot image by the AOT compiler.
4469 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4470 mono_error_cleanup (&inner_error);
4475 /* Same for CompareExchange<T> and Exchange<T> */
4476 /* Same for Volatile.Read<T>/Write<T> */
4477 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
4478 ((!strcmp (method->klass->name_space, "System.Threading") && !strcmp (method->klass->name, "Interlocked") && (!strcmp (method->name, "CompareExchange") || !strcmp (method->name, "Exchange")) && MONO_TYPE_IS_REFERENCE (mini_type_get_underlying_type (mono_method_signature (method)->params [1]))) ||
4479 (!strcmp (method->klass->name_space, "System.Threading") && !strcmp (method->klass->name, "Volatile") && (!strcmp (method->name, "Read") && MONO_TYPE_IS_REFERENCE (mini_type_get_underlying_type (mono_method_signature (method)->ret)))) ||
4480 (!strcmp (method->klass->name_space, "System.Threading") && !strcmp (method->klass->name, "Volatile") && (!strcmp (method->name, "Write") && MONO_TYPE_IS_REFERENCE (mini_type_get_underlying_type (mono_method_signature (method)->params [1])))))) {
4482 MonoGenericContext ctx;
4483 MonoType *args [16];
4484 gpointer iter = NULL;
4486 while ((m = mono_class_get_methods (method->klass, &iter))) {
4487 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
4492 memset (&ctx, 0, sizeof (ctx));
4493 args [0] = &mono_defaults.object_class->byval_arg;
4494 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4496 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, error), TRUE, TRUE);
4498 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error)); /* FIXME don't swallow the error */
4500 /* Avoid recursion */
4505 * Get the code for the <object> instantiation which should be emitted into
4506 * the mscorlib aot image by the AOT compiler.
4508 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4509 mono_error_cleanup (&inner_error);
4514 /* For ARRAY_ACCESSOR wrappers with reference types, use the <object> instantiation saved in corlib */
4515 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4516 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4518 if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
4519 MonoMethod *array_method = info->d.array_accessor.method;
4520 if (MONO_TYPE_IS_REFERENCE (&array_method->klass->element_class->byval_arg)) {
4523 if (!strcmp (array_method->name, "Set"))
4524 rank = mono_method_signature (array_method)->param_count - 1;
4525 else if (!strcmp (array_method->name, "Get") || !strcmp (array_method->name, "Address"))
4526 rank = mono_method_signature (array_method)->param_count;
4528 g_assert_not_reached ();
4529 MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, rank);
4530 MonoMethod *m = mono_class_get_method_from_name (obj_array_class, array_method->name, mono_method_signature (array_method)->param_count);
4533 m = mono_marshal_get_array_accessor_wrapper (m);
4535 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4536 mono_error_cleanup (&inner_error);
4544 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
4545 /* Partial sharing */
4548 shared = mini_get_shared_method (method);
4549 method_index = find_aot_method (shared, &amodule);
4550 if (method_index != 0xffffff)
4554 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4557 /* Use the all-vt shared method since this is what was AOTed */
4558 shared = mini_get_shared_method_full (method, TRUE, TRUE);
4559 method_index = find_aot_method (shared, &amodule);
4560 if (method_index != 0xffffff)
4561 method = mini_get_shared_method_full (method, TRUE, FALSE);
4564 if (method_index == 0xffffff) {
4565 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
4568 full_name = mono_method_full_name (method, TRUE);
4569 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
4575 if (method_index == 0xffffff)
4578 /* Needed by find_jit_info */
4579 amodule_lock (amodule);
4580 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
4581 amodule_unlock (amodule);
4584 method_index = mono_metadata_token_index (method->token) - 1;
4587 code = (guint8 *)load_method (domain, amodule, klass->image, method, method->token, method_index, error);
4590 if (code && cache_result) {
4591 amodule_lock (amodule);
4592 g_hash_table_insert (amodule->method_to_code, orig_method, code);
4593 amodule_unlock (amodule);
4599 * mono_aot_get_method:
4601 * Return a pointer to the AOTed native code for METHOD if it can be found,
4603 * On platforms with function pointers, this doesn't return a function pointer.
4606 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
4610 gpointer res = mono_aot_get_method_checked (domain, method, &error);
4611 /* This is external only, so its ok to raise here */
4612 mono_error_raise_exception (&error); /* OK to throw, external only without a good alternative */
4617 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4621 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token, MonoError *error)
4623 MonoAotModule *aot_module = (MonoAotModule *)image->aot_module;
4632 method_index = mono_metadata_token_index (token) - 1;
4634 res = load_method (domain, aot_module, image, NULL, token, method_index, error);
4641 } IsGotEntryUserData;
4644 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4646 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4647 MonoAotModule *aot_module = (MonoAotModule*)value;
4649 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4654 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4656 IsGotEntryUserData user_data;
4661 user_data.addr = addr;
4662 user_data.res = FALSE;
4664 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4667 return user_data.res;
4672 MonoAotModule *module;
4673 } FindAotModuleUserData;
4676 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4678 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4679 MonoAotModule *aot_module = (MonoAotModule*)value;
4681 if (amodule_contains_code_addr (aot_module, data->addr))
4682 data->module = aot_module;
4685 static inline MonoAotModule*
4686 find_aot_module (guint8 *code)
4688 FindAotModuleUserData user_data;
4693 /* Reading these need no locking */
4694 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4697 user_data.addr = code;
4698 user_data.module = NULL;
4701 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4704 return user_data.module;
4708 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4710 MonoAotModule *amodule;
4713 * Since AOT code is only used in the root domain,
4714 * mono_domain_get () != mono_get_root_domain () means the calling method
4715 * is AppDomain:InvokeInDomain, so this is the same check as in
4716 * mono_method_same_domain () but without loading the metadata for the method.
4718 if (mono_domain_get () == mono_get_root_domain ()) {
4720 amodule = find_aot_module (code);
4724 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4729 * mono_aot_plt_resolve:
4731 * This function is called by the entries in the PLT to resolve the actual method that
4732 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4733 * Returns NULL if the something cannot be loaded.
4736 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
4738 #ifdef MONO_ARCH_AOT_SUPPORTED
4739 guint8 *p, *target, *plt_entry;
4741 MonoAotModule *module = (MonoAotModule*)aot_module;
4742 gboolean res, no_ftnptr = FALSE;
4744 gboolean using_gsharedvt = FALSE;
4748 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4750 p = &module->blob [plt_info_offset];
4752 ji.type = (MonoJumpInfoType)decode_value (p, &p);
4754 mp = mono_mempool_new ();
4755 res = decode_patch (module, mp, &ji, p, &p);
4758 mono_mempool_destroy (mp);
4762 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4763 using_gsharedvt = TRUE;
4767 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4768 * it would create a trampoline, and we don't need that.
4769 * We could do this only if the method does not need the special handling
4770 * in mono_magic_trampoline ().
4772 if (mono_aot_only && ji.type == MONO_PATCH_INFO_METHOD && !ji.data.method->is_generic && !mono_method_check_context_used (ji.data.method) && !(ji.data.method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) &&
4773 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4774 target = (guint8 *)mono_jit_compile_method (ji.data.method, error);
4775 if (!mono_error_ok (error)) {
4776 mono_mempool_destroy (mp);
4781 target = (guint8 *)mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE, error);
4782 if (!mono_error_ok (error)) {
4783 mono_mempool_destroy (mp);
4789 * The trampoline expects us to return a function descriptor on platforms which use
4790 * it, but resolve_patch_target returns a direct function pointer for some type of
4791 * patches, so have to translate between the two.
4792 * FIXME: Clean this up, but how ?
4794 if (ji.type == MONO_PATCH_INFO_ABS || ji.type == MONO_PATCH_INFO_INTERNAL_METHOD || ji.type == MONO_PATCH_INFO_ICALL_ADDR || ji.type == MONO_PATCH_INFO_JIT_ICALL_ADDR || ji.type == MONO_PATCH_INFO_RGCTX_FETCH) {
4795 /* These should already have a function descriptor */
4796 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4797 /* Our function descriptors have a 0 environment, gcc created ones don't */
4798 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4799 g_assert (((gpointer*)target) [2] == 0);
4802 } else if (!no_ftnptr) {
4803 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4804 g_assert (((gpointer*)target) [2] != 0);
4806 target = (guint8 *)mono_create_ftnptr (mono_domain_get (), target);
4809 mono_mempool_destroy (mp);
4811 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4812 plt_entry = mono_aot_get_plt_entry (code);
4813 g_assert (plt_entry);
4814 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4818 g_assert_not_reached ();
4826 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4827 * method in the module is loaded to avoid committing memory by writing to it.
4828 * LOCKING: Assumes the AMODULE lock is held.
4831 init_plt (MonoAotModule *amodule)
4836 if (amodule->plt_inited)
4839 if (amodule->info.plt_size <= 1) {
4840 amodule->plt_inited = TRUE;
4844 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4847 * Initialize the PLT entries in the GOT to point to the default targets.
4850 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4851 for (i = 1; i < amodule->info.plt_size; ++i)
4852 /* All the default entries point to the AOT trampoline */
4853 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4855 amodule->plt_inited = TRUE;
4859 * mono_aot_get_plt_entry:
4861 * Return the address of the PLT entry called by the code at CODE if exists.
4864 mono_aot_get_plt_entry (guint8 *code)
4866 MonoAotModule *amodule = find_aot_module (code);
4867 guint8 *target = NULL;
4873 if (is_thumb_code (amodule, code - 4))
4874 return mono_arm_get_thumb_plt_entry (code);
4877 #ifdef MONO_ARCH_AOT_SUPPORTED
4878 target = mono_arch_get_call_target (code);
4880 g_assert_not_reached ();
4884 while (target != NULL) {
4885 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4888 // Add 4 since mono_arch_get_call_target assumes we're passing
4889 // the instruction after the actual branch instruction.
4890 target = mono_arch_get_call_target (target + 4);
4895 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4903 * mono_aot_get_plt_info_offset:
4905 * Return the PLT info offset belonging to the plt entry called by CODE.
4908 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4910 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4912 g_assert (plt_entry);
4914 /* The offset is embedded inside the code after the plt entry */
4915 #ifdef MONO_ARCH_AOT_SUPPORTED
4916 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4918 g_assert_not_reached ();
4924 mono_create_ftnptr_malloc (guint8 *code)
4926 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4927 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4929 ftnptr->code = code;
4940 * mono_aot_register_jit_icall:
4942 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4943 * be called from mono_arch_init () during startup.
4946 mono_aot_register_jit_icall (const char *name, gpointer addr)
4948 /* No need for locking */
4949 if (!aot_jit_icall_hash)
4950 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
4951 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
4955 * load_function_full:
4957 * Load the function named NAME from the aot image.
4960 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
4964 int n_patches, pindex;
4967 guint32 info_offset;
4971 symbol = g_strdup_printf ("%s", name);
4972 find_amodule_symbol (amodule, symbol, (gpointer *)&code);
4975 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
4977 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
4981 symbol = g_strdup_printf ("%s_p", name);
4982 find_amodule_symbol (amodule, symbol, (gpointer *)&p);
4985 /* Nothing to patch */
4988 info_offset = *(guint32*)p;
4990 MonoTrampInfo *tinfo;
4991 guint32 code_size, uw_info_len, uw_offset;
4993 /* Construct a MonoTrampInfo from the data in the AOT image */
4995 p += sizeof (guint32);
4996 code_size = *(guint32*)p;
4997 p += sizeof (guint32);
4998 uw_offset = *(guint32*)p;
4999 uw_info = amodule->unwind_info + uw_offset;
5000 uw_info_len = decode_value (uw_info, &uw_info);
5002 tinfo = g_new0 (MonoTrampInfo, 1);
5003 tinfo->code = (guint8 *)code;
5004 tinfo->code_size = code_size;
5005 tinfo->uw_info_len = uw_info_len;
5007 tinfo->uw_info = uw_info;
5012 p = amodule->blob + info_offset;
5014 /* Similar to mono_aot_load_method () */
5016 n_patches = decode_value (p, &p);
5019 MonoJumpInfo *patches;
5022 mp = mono_mempool_new ();
5024 patches = load_patch_info (amodule, mp, n_patches, FALSE, &got_slots, p, &p);
5027 for (pindex = 0; pindex < n_patches; ++pindex) {
5028 MonoJumpInfo *ji = &patches [pindex];
5032 if (amodule->got [got_slots [pindex]])
5036 * When this code is executed, the runtime may not be initalized yet, so
5037 * resolve the patch info by hand.
5039 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
5040 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
5041 target = mono_get_lmf_addr;
5042 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint_noraise")) {
5043 target = mono_thread_force_interruption_checkpoint_noraise;
5044 } else if (!strcmp (ji->data.name, "mono_interruption_checkpoint_from_trampoline")) {
5045 target = mono_interruption_checkpoint_from_trampoline;
5046 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
5047 target = mono_exception_from_token;
5048 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
5049 target = mono_get_throw_exception ();
5050 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
5051 MonoTrampolineType tramp_type2 = (MonoTrampolineType)atoi (ji->data.name + strlen ("trampoline_func_"));
5052 target = (gpointer)mono_get_trampoline_func (tramp_type2);
5053 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
5054 /* atoll is needed because the the offset is unsigned */
5058 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
5059 g_assert (res == 1);
5060 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5061 target = mono_create_ftnptr_malloc ((guint8 *)target);
5062 } else if (!strcmp (ji->data.name, "debugger_agent_single_step_from_context")) {
5063 target = debugger_agent_single_step_from_context;
5064 } else if (!strcmp (ji->data.name, "debugger_agent_breakpoint_from_context")) {
5065 target = debugger_agent_breakpoint_from_context;
5066 } else if (!strcmp (ji->data.name, "throw_exception_addr")) {
5067 target = mono_get_throw_exception_addr ();
5068 } else if (strstr (ji->data.name, "generic_trampoline_")) {
5069 target = mono_aot_get_trampoline (ji->data.name);
5070 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
5071 /* Registered by mono_arch_init () */
5072 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
5074 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
5075 g_assert_not_reached ();
5079 /* Hopefully the code doesn't have patches which need method or
5082 target = mono_resolve_patch_target (NULL, NULL, (guint8 *)code, ji, FALSE, &error);
5083 mono_error_assert_ok (&error);
5087 amodule->got [got_slots [pindex]] = target;
5092 mono_mempool_destroy (mp);
5099 load_function (MonoAotModule *amodule, const char *name)
5101 return load_function_full (amodule, name, NULL);
5104 static MonoAotModule*
5105 get_mscorlib_aot_module (void)
5108 MonoAotModule *amodule;
5110 image = mono_defaults.corlib;
5112 amodule = (MonoAotModule *)image->aot_module;
5114 amodule = mscorlib_aot_module;
5120 no_trampolines (void)
5122 g_assert_not_reached ();
5126 * Return the trampoline identified by NAME from the mscorlib AOT file.
5127 * On ppc64, this returns a function descriptor.
5130 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5132 MonoAotModule *amodule = get_mscorlib_aot_module ();
5134 if (mono_llvm_only) {
5136 return no_trampolines;
5139 return mono_create_ftnptr_malloc ((guint8 *)load_function_full (amodule, name, out_tinfo));
5143 mono_aot_get_trampoline (const char *name)
5145 MonoTrampInfo *out_tinfo;
5148 code = mono_aot_get_trampoline_full (name, &out_tinfo);
5149 mono_tramp_info_register (out_tinfo, NULL);
5155 read_unwind_info (MonoAotModule *amodule, MonoTrampInfo *info, const char *symbol_name)
5157 gpointer symbol_addr;
5158 guint32 uw_offset, uw_info_len;
5161 find_amodule_symbol (amodule, symbol_name, &symbol_addr);
5166 uw_offset = *(guint32*)symbol_addr;
5167 uw_info = amodule->unwind_info + uw_offset;
5168 uw_info_len = decode_value (uw_info, &uw_info);
5170 info->uw_info_len = uw_info_len;
5172 info->uw_info = uw_info;
5174 info->uw_info = NULL;
5176 /* If successful return the address of the following data */
5177 return (guint32*)symbol_addr + 1;
5181 #include <mach/mach.h>
5183 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
5186 read_page_trampoline_uwinfo (MonoTrampInfo *info, int tramp_type, gboolean is_generic)
5188 char symbol_name [128];
5190 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5191 sprintf (symbol_name, "specific_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5192 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5193 sprintf (symbol_name, "rgctx_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5194 else if (tramp_type == MONO_AOT_TRAMP_IMT)
5195 sprintf (symbol_name, "imt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5196 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5197 sprintf (symbol_name, "gsharedvt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5199 g_assert_not_reached ();
5201 read_unwind_info (mono_defaults.corlib->aot_module, info, symbol_name);
5204 static unsigned char*
5205 get_new_trampoline_from_page (int tramp_type)
5207 MonoAotModule *amodule;
5209 TrampolinePage *page;
5212 vm_address_t addr, taddr;
5214 vm_prot_t prot, max_prot;
5215 int psize, specific_trampoline_size;
5216 unsigned char *code;
5218 specific_trampoline_size = 2 * sizeof (gpointer);
5220 mono_aot_page_lock ();
5221 page = trampoline_pages [tramp_type];
5222 if (page && page->trampolines < page->trampolines_end) {
5223 code = page->trampolines;
5224 page->trampolines += specific_trampoline_size;
5225 mono_aot_page_unlock ();
5228 mono_aot_page_unlock ();
5229 /* the trampoline template page is in the mscorlib module */
5230 image = mono_defaults.corlib;
5233 psize = MONO_AOT_TRAMP_PAGE_SIZE;
5235 amodule = image->aot_module;
5238 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5239 tpage = load_function (amodule, "specific_trampolines_page");
5240 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5241 tpage = load_function (amodule, "rgctx_trampolines_page");
5242 else if (tramp_type == MONO_AOT_TRAMP_IMT)
5243 tpage = load_function (amodule, "imt_trampolines_page");
5244 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5245 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
5247 g_error ("Incorrect tramp type for trampolines page");
5249 /*g_warning ("loaded trampolines page at %x", tpage);*/
5251 /* avoid the unlikely case of looping forever */
5254 while (page == NULL && count-- > 0) {
5255 MonoTrampInfo *gen_info, *sp_info;
5258 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
5259 * while the second will contain the trampolines.
5262 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
5263 } while (ret == KERN_ABORTED);
5264 if (ret != KERN_SUCCESS) {
5265 g_error ("Cannot allocate memory for trampolines: %d", ret);
5268 /*g_warning ("allocated trampoline double page at %x", addr);*/
5269 /* replace the second page with a remapped trampoline page */
5270 taddr = addr + psize;
5271 vm_deallocate (mach_task_self (), taddr, psize);
5272 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
5273 if (ret != KERN_SUCCESS) {
5274 /* someone else got the page, try again */
5275 vm_deallocate (mach_task_self (), addr, psize);
5278 /*g_warning ("remapped trampoline page at %x", taddr);*/
5280 mono_aot_page_lock ();
5281 page = trampoline_pages [tramp_type];
5282 /* some other thread already allocated, so use that to avoid wasting memory */
5283 if (page && page->trampolines < page->trampolines_end) {
5284 code = page->trampolines;
5285 page->trampolines += specific_trampoline_size;
5286 mono_aot_page_unlock ();
5287 vm_deallocate (mach_task_self (), addr, psize);
5288 vm_deallocate (mach_task_self (), taddr, psize);
5291 page = (TrampolinePage*)addr;
5292 page->next = trampoline_pages [tramp_type];
5293 trampoline_pages [tramp_type] = page;
5294 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
5295 page->trampolines_end = (void*)(taddr + psize - 64);
5296 code = page->trampolines;
5297 page->trampolines += specific_trampoline_size;
5298 mono_aot_page_unlock ();
5300 /* Register the generic part at the beggining of the trampoline page */
5301 gen_info = mono_tramp_info_create (NULL, (guint8*)taddr, amodule->info.tramp_page_code_offsets [tramp_type], NULL, NULL);
5302 read_page_trampoline_uwinfo (gen_info, tramp_type, TRUE);
5303 mono_tramp_info_register (gen_info, NULL);
5306 * Registering each specific trampoline produces a lot of
5307 * MonoJitInfo structures. Jump trampolines are also registered
5310 if (tramp_type != MONO_AOT_TRAMP_SPECIFIC) {
5311 /* Register the rest of the page as a single trampoline */
5312 sp_info = mono_tramp_info_create (NULL, code, page->trampolines_end - code, NULL, NULL);
5313 read_page_trampoline_uwinfo (sp_info, tramp_type, FALSE);
5314 mono_tramp_info_register (sp_info, NULL);
5318 g_error ("Cannot allocate more trampoline pages: %d", ret);
5323 static unsigned char*
5324 get_new_trampoline_from_page (int tramp_type)
5326 g_error ("Page trampolines not supported.");
5333 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
5338 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
5340 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5343 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5349 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
5354 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
5356 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5359 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5365 get_new_imt_trampoline_from_page (gpointer arg)
5370 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT);
5372 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5374 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
5380 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
5385 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
5387 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5390 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5394 /* Return a given kind of trampoline */
5395 /* FIXME set unwind info for these trampolines */
5397 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
5400 MonoAotModule *amodule = get_mscorlib_aot_module ();
5401 int index, tramp_size;
5403 /* Currently, we keep all trampolines in the mscorlib AOT image */
5404 image = mono_defaults.corlib;
5406 *out_amodule = amodule;
5411 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5413 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5415 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
5416 g_error ("Ran out of trampolines of type %d in '%s' (limit %d)%s\n",
5417 tramp_type, image ? image->name : "mscorlib", amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
5419 index = amodule->trampoline_index [tramp_type] ++;
5423 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
5425 tramp_size = amodule->info.trampoline_size [tramp_type];
5428 *out_tramp_size = tramp_size;
5430 return amodule->trampolines [tramp_type] + (index * tramp_size);
5434 no_specific_trampoline (void)
5436 g_assert_not_reached ();
5440 * Return a specific trampoline from the AOT file.
5443 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5445 MonoAotModule *amodule;
5446 guint32 got_offset, tramp_size;
5447 guint8 *code, *tramp;
5448 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
5449 static gboolean inited;
5450 static guint32 num_trampolines;
5452 if (mono_llvm_only) {
5454 return no_specific_trampoline;
5461 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
5470 if (!generic_trampolines [tramp_type]) {
5473 symbol = mono_get_generic_trampoline_name (tramp_type);
5474 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
5478 tramp = (guint8 *)generic_trampolines [tramp_type];
5481 if (USE_PAGE_TRAMPOLINES) {
5482 code = (guint8 *)get_new_specific_trampoline_from_page (tramp, arg1);
5485 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
5487 amodule->got [got_offset] = tramp;
5488 amodule->got [got_offset + 1] = arg1;
5492 *code_len = tramp_size;
5498 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5500 MonoAotModule *amodule;
5504 if (USE_PAGE_TRAMPOLINES) {
5505 code = (guint8 *)get_new_rgctx_trampoline_from_page (addr, ctx);
5507 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
5509 amodule->got [got_offset] = ctx;
5510 amodule->got [got_offset + 1] = addr;
5513 /* The caller expects an ftnptr */
5514 return mono_create_ftnptr (mono_domain_get (), code);
5518 mono_aot_get_unbox_trampoline (MonoMethod *method)
5520 guint32 method_index = mono_metadata_token_index (method->token) - 1;
5521 MonoAotModule *amodule;
5523 guint32 *ut, *ut_end, *entry;
5524 int low, high, entry_index = 0;
5525 gpointer symbol_addr;
5526 MonoTrampInfo *tinfo;
5528 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
5529 method_index = find_aot_method (method, &amodule);
5530 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
5531 MonoMethod *shared = mini_get_shared_method_full (method, FALSE, FALSE);
5532 method_index = find_aot_method (shared, &amodule);
5534 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, TRUE)) {
5535 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
5536 method_index = find_aot_method (shared, &amodule);
5538 g_assert (method_index != 0xffffff);
5540 amodule = (MonoAotModule *)method->klass->image->aot_module;
5544 if (amodule->info.llvm_get_unbox_tramp) {
5545 gpointer (*get_tramp) (int) = (gpointer (*)(int))amodule->info.llvm_get_unbox_tramp;
5546 code = get_tramp (method_index);
5552 ut = amodule->unbox_trampolines;
5553 ut_end = amodule->unbox_trampolines_end;
5555 /* Do a binary search in the sorted table */
5558 high = (ut_end - ut);
5559 while (low < high) {
5560 entry_index = (low + high) / 2;
5561 entry = &ut [entry_index];
5562 if (entry [0] < method_index) {
5563 low = entry_index + 1;
5564 } else if (entry [0] > method_index) {
5571 code = get_call_table_entry (amodule->unbox_trampoline_addresses, entry_index);
5574 tinfo = mono_tramp_info_create (NULL, (guint8 *)code, 0, NULL, NULL);
5576 symbol_addr = read_unwind_info (amodule, tinfo, "unbox_trampoline_p");
5578 mono_tramp_info_free (tinfo);
5582 tinfo->code_size = *(guint32*)symbol_addr;
5583 mono_tramp_info_register (tinfo, NULL);
5585 /* The caller expects an ftnptr */
5586 return mono_create_ftnptr (mono_domain_get (), code);
5590 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5594 MonoAotModule *amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
5595 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
5596 static int count = 0;
5599 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
5600 static gpointer addr;
5604 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5607 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
5608 info = (void **)mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
5609 info [0] = GUINT_TO_POINTER (slot);
5610 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5611 code = mono_aot_get_static_rgctx_trampoline (info, addr);
5612 return mono_create_ftnptr (mono_domain_get (), code);
5615 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
5616 code = load_function ((MonoAotModule *)mono_defaults.corlib->aot_module, symbol);
5618 /* The caller expects an ftnptr */
5619 return mono_create_ftnptr (mono_domain_get (), code);
5623 no_imt_trampoline (void)
5625 g_assert_not_reached ();
5629 mono_aot_get_imt_trampoline (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5634 int i, index, real_count;
5635 MonoAotModule *amodule;
5638 return no_imt_trampoline;
5641 for (i = 0; i < count; ++i) {
5642 MonoIMTCheckItem *item = imt_entries [i];
5644 if (item->is_equals)
5648 /* Save the entries into an array */
5649 buf = (void **)mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
5651 for (i = 0; i < count; ++i) {
5652 MonoIMTCheckItem *item = imt_entries [i];
5654 if (!item->is_equals)
5657 g_assert (item->key);
5659 buf [(index * 2)] = item->key;
5660 if (item->has_target_code) {
5661 gpointer *p = (gpointer *)mono_domain_alloc (domain, sizeof (gpointer));
5662 *p = item->value.target_code;
5663 buf [(index * 2) + 1] = p;
5665 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
5669 buf [(index * 2)] = NULL;
5670 buf [(index * 2) + 1] = fail_tramp;
5672 if (USE_PAGE_TRAMPOLINES) {
5673 code = get_new_imt_trampoline_from_page (buf);
5675 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT, 1, &amodule, &got_offset, NULL);
5677 amodule->got [got_offset] = buf;
5684 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5686 MonoAotModule *amodule;
5690 if (USE_PAGE_TRAMPOLINES) {
5691 code = (guint8 *)get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
5693 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
5695 amodule->got [got_offset] = arg;
5696 amodule->got [got_offset + 1] = addr;
5699 /* The caller expects an ftnptr */
5700 return mono_create_ftnptr (mono_domain_get (), code);
5704 * mono_aot_set_make_unreadable:
5706 * Set whenever to make all mmaped memory unreadable. In conjuction with a
5707 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
5710 mono_aot_set_make_unreadable (gboolean unreadable)
5714 make_unreadable = unreadable;
5716 if (make_unreadable && !inited) {
5717 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
5722 MonoAotModule *module;
5727 find_map (gpointer key, gpointer value, gpointer user_data)
5729 MonoAotModule *module = (MonoAotModule*)value;
5730 FindMapUserData *data = (FindMapUserData*)user_data;
5733 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
5734 data->module = module;
5737 static MonoAotModule*
5738 find_module_for_addr (void *ptr)
5740 FindMapUserData data;
5742 if (!make_unreadable)
5746 data.ptr = (guint8*)ptr;
5749 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
5756 * mono_aot_is_pagefault:
5758 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
5759 * within memory allocated by this module.
5762 mono_aot_is_pagefault (void *ptr)
5764 if (!make_unreadable)
5768 * Not signal safe, but SIGSEGV's are synchronous, and
5769 * this is only turned on by a MONO_DEBUG option.
5771 return find_module_for_addr (ptr) != NULL;
5775 * mono_aot_handle_pagefault:
5777 * Handle a pagefault caused by an unreadable page by making it readable again.
5780 mono_aot_handle_pagefault (void *ptr)
5782 #ifndef PLATFORM_WIN32
5783 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5787 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5788 g_assert (res == 0);
5799 mono_aot_init (void)
5804 mono_aot_cleanup (void)
5809 mono_aot_find_method_index (MonoMethod *method)
5811 g_assert_not_reached ();
5816 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
5821 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this)
5826 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
5831 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
5836 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5842 mono_aot_get_method_checked (MonoDomain *domain,
5843 MonoMethod *method, MonoError *error)
5850 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5856 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5862 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5868 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5874 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token, MonoError *error)
5881 mono_aot_get_plt_entry (guint8 *code)
5887 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
5893 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5898 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot, MonoError *error)
5906 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5908 g_assert_not_reached ();
5914 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5916 g_assert_not_reached ();
5921 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5923 g_assert_not_reached ();
5928 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5930 g_assert_not_reached ();
5935 mono_aot_get_trampoline (const char *name)
5937 g_assert_not_reached ();
5942 mono_aot_get_unbox_trampoline (MonoMethod *method)
5944 g_assert_not_reached ();
5949 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5951 g_assert_not_reached ();
5956 mono_aot_get_imt_trampoline (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5958 g_assert_not_reached ();
5963 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5965 g_assert_not_reached ();
5970 mono_aot_set_make_unreadable (gboolean unreadable)
5975 mono_aot_is_pagefault (void *ptr)
5981 mono_aot_handle_pagefault (void *ptr)
5986 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
5988 g_assert_not_reached ();
5993 mono_aot_register_jit_icall (const char *name, gpointer addr)