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);
260 mono_error_init (error);
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.\n", 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').\n", 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').\n", 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;
377 mono_error_init (error);
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)
404 mono_error_init (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;
436 mono_error_init (error);
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 (gclass->generic_container);
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 = class_def->generic_container;
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));
624 mono_error_init (error);
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 (gclass->generic_container);
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 = klass->generic_class;
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));
855 mono_error_init (error);
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 case MONO_WRAPPER_ISINST: {
908 MonoClass *klass = decode_klass_ref (module, p, &p, error);
911 if (wrapper_type == MONO_WRAPPER_LDFLD)
912 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
913 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
914 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
915 else if (wrapper_type == MONO_WRAPPER_STFLD)
916 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
917 else if (wrapper_type == MONO_WRAPPER_ISINST)
918 ref->method = mono_marshal_get_isinst (klass);
920 mono_error_set_bad_image_name (error, module->aot_name, "Unknown AOT wrapper type %d", wrapper_type);
925 case MONO_WRAPPER_LDFLD_REMOTE:
926 ref->method = mono_marshal_get_ldfld_remote_wrapper (NULL);
928 case MONO_WRAPPER_STFLD_REMOTE:
929 ref->method = mono_marshal_get_stfld_remote_wrapper (NULL);
932 case MONO_WRAPPER_ALLOC: {
933 int atype = decode_value (p, &p);
934 ManagedAllocatorVariant variant =
935 mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS ?
936 MANAGED_ALLOCATOR_SLOW_PATH : MANAGED_ALLOCATOR_REGULAR;
938 ref->method = mono_gc_get_managed_allocator_by_type (atype, variant);
940 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");
945 case MONO_WRAPPER_WRITE_BARRIER: {
946 ref->method = mono_gc_get_write_barrier ();
949 case MONO_WRAPPER_STELEMREF: {
950 int subtype = decode_value (p, &p);
952 if (subtype == WRAPPER_SUBTYPE_NONE) {
953 ref->method = mono_marshal_get_stelemref ();
954 } else if (subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) {
957 kind = decode_value (p, &p);
959 /* Can't decode this */
962 if (target->wrapper_type == MONO_WRAPPER_STELEMREF) {
963 info = mono_marshal_get_wrapper_info (target);
966 if (info->subtype == subtype && info->d.virtual_stelemref.kind == kind)
967 ref->method = target;
974 mono_error_set_bad_image_name (error, module->aot_name, "Invalid STELEMREF subtype %d", subtype);
979 case MONO_WRAPPER_SYNCHRONIZED: {
980 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
983 ref->method = mono_marshal_get_synchronized_wrapper (m);
986 case MONO_WRAPPER_UNKNOWN: {
987 int subtype = decode_value (p, &p);
989 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) {
990 MonoClass *klass = decode_klass_ref (module, p, &p, error);
996 if (klass != target->klass)
999 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE) {
1000 if (strcmp (target->name, "PtrToStructure"))
1002 ref->method = mono_marshal_get_ptr_to_struct (klass);
1004 if (strcmp (target->name, "StructureToPtr"))
1006 ref->method = mono_marshal_get_struct_to_ptr (klass);
1008 } else if (subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) {
1009 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1012 ref->method = mono_marshal_get_synchronized_inner_wrapper (m);
1013 } else if (subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
1014 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1017 ref->method = mono_marshal_get_array_accessor_wrapper (m);
1018 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN) {
1019 ref->method = mono_marshal_get_gsharedvt_in_wrapper ();
1020 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
1021 ref->method = mono_marshal_get_gsharedvt_out_wrapper ();
1022 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) {
1023 MonoMethodSignature *sig = decode_signature (module, p, &p);
1026 ref->method = mini_get_gsharedvt_in_sig_wrapper (sig);
1027 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG) {
1028 MonoMethodSignature *sig = decode_signature (module, p, &p);
1031 ref->method = mini_get_gsharedvt_out_sig_wrapper (sig);
1033 mono_error_set_bad_image_name (error, module->aot_name, "Invalid UNKNOWN wrapper subtype %d", subtype);
1038 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
1039 int subtype = decode_value (p, &p);
1041 if (subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
1042 int rank = decode_value (p, &p);
1043 int elem_size = decode_value (p, &p);
1045 ref->method = mono_marshal_get_array_address (rank, elem_size);
1046 } else if (subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
1049 m = decode_resolve_method_ref (module, p, &p, error);
1055 g_assert (target->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED);
1057 info = mono_marshal_get_wrapper_info (target);
1058 if (info && info->subtype == subtype && info->d.string_ctor.method == m)
1059 ref->method = target;
1065 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
1067 int subtype = decode_value (p, &p);
1070 if (subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1075 if (strcmp (target->name, name) != 0)
1077 ref->method = target;
1079 m = decode_resolve_method_ref (module, p, &p, error);
1083 /* This should only happen when looking for an extra method */
1086 if (mono_marshal_method_from_wrapper (target) == m)
1087 ref->method = target;
1093 case MONO_WRAPPER_CASTCLASS: {
1094 int subtype = decode_value (p, &p);
1096 if (subtype == WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE)
1097 ref->method = mono_marshal_get_castclass_with_cache ();
1098 else if (subtype == WRAPPER_SUBTYPE_ISINST_WITH_CACHE)
1099 ref->method = mono_marshal_get_isinst_with_cache ();
1101 mono_error_set_bad_image_name (error, module->aot_name, "Invalid CASTCLASS wrapper subtype %d", subtype);
1106 case MONO_WRAPPER_RUNTIME_INVOKE: {
1107 int subtype = decode_value (p, &p);
1112 if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC) {
1113 if (strcmp (target->name, "runtime_invoke_dynamic") != 0)
1115 ref->method = target;
1116 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT) {
1117 /* Direct wrapper */
1118 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1121 ref->method = mono_marshal_get_runtime_invoke (m, FALSE);
1122 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) {
1123 /* Virtual direct wrapper */
1124 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1127 ref->method = mono_marshal_get_runtime_invoke (m, TRUE);
1129 MonoMethodSignature *sig;
1131 sig = decode_signature_with_target (module, NULL, p, &p);
1132 info = mono_marshal_get_wrapper_info (target);
1135 if (info->subtype != subtype)
1137 g_assert (info->d.runtime_invoke.sig);
1138 if (mono_metadata_signature_equal (sig, info->d.runtime_invoke.sig))
1139 ref->method = target;
1145 case MONO_WRAPPER_DELEGATE_INVOKE:
1146 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1147 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
1148 gboolean is_inflated = decode_value (p, &p);
1149 WrapperSubtype subtype;
1153 MonoMethod *invoke, *wrapper;
1155 klass = decode_klass_ref (module, p, &p, error);
1159 switch (wrapper_type) {
1160 case MONO_WRAPPER_DELEGATE_INVOKE:
1161 invoke = mono_get_delegate_invoke (klass);
1162 wrapper = mono_marshal_get_delegate_invoke (invoke, NULL);
1164 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1165 invoke = mono_get_delegate_begin_invoke (klass);
1166 wrapper = mono_marshal_get_delegate_begin_invoke (invoke);
1168 case MONO_WRAPPER_DELEGATE_END_INVOKE:
1169 invoke = mono_get_delegate_end_invoke (klass);
1170 wrapper = mono_marshal_get_delegate_end_invoke (invoke);
1173 g_assert_not_reached ();
1178 * Due to the way mini_get_shared_method () works, we could end up with
1179 * multiple copies of the same wrapper.
1181 if (wrapper->klass != target->klass)
1183 ref->method = target;
1185 ref->method = wrapper;
1189 * These wrappers are associated with a signature, not with a method.
1190 * Since we can't decode them into methods, they need a target method.
1195 if (wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1196 subtype = (WrapperSubtype)decode_value (p, &p);
1197 info = mono_marshal_get_wrapper_info (target);
1199 if (info->subtype != subtype)
1202 if (subtype != WRAPPER_SUBTYPE_NONE)
1206 if (sig_matches_target (module, target, p, &p))
1207 ref->method = target;
1213 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
1217 m = decode_resolve_method_ref (module, p, &p, error);
1220 klass = decode_klass_ref (module, p, &p, error);
1223 ref->method = mono_marshal_get_managed_wrapper (m, klass, 0);
1227 g_assert_not_reached ();
1229 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1230 image_index = decode_value (p, &p);
1231 ref->token = decode_value (p, &p);
1233 image = load_image (module, image_index, error);
1236 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1238 MonoGenericContext ctx;
1241 * These methods do not have a token which resolves them, so we
1242 * resolve them immediately.
1244 klass = decode_klass_ref (module, p, &p, error);
1248 if (target && target->klass != klass)
1251 image_index = decode_value (p, &p);
1252 ref->token = decode_value (p, &p);
1254 image = load_image (module, image_index, error);
1258 ref->method = mono_get_method_checked (image, ref->token, NULL, NULL, error);
1263 memset (&ctx, 0, sizeof (ctx));
1265 if (FALSE && klass->generic_class) {
1266 ctx.class_inst = klass->generic_class->context.class_inst;
1267 ctx.method_inst = NULL;
1269 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, error);
1274 memset (&ctx, 0, sizeof (ctx));
1276 if (!decode_generic_context (module, &ctx, p, &p, error))
1279 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, error);
1283 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1287 klass = decode_klass_ref (module, p, &p, error);
1290 method_type = decode_value (p, &p);
1291 switch (method_type) {
1293 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1296 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1299 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1302 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1305 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1308 mono_error_set_bad_image_name (error, module->aot_name, "Invalid METHODREF_ARRAY method type %d", method_type);
1312 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1313 image_index = decode_value (p, &p);
1314 value = decode_value (p, &p);
1317 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1319 image = load_image (module, image_index, error);
1332 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf, MonoError *error)
1334 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf, error);
1338 * decode_resolve_method_ref_with_target:
1340 * Similar to decode_method_ref, but resolve and return the method itself.
1343 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf, MonoError *error)
1347 mono_error_init (error);
1349 if (!decode_method_ref_with_target (module, &ref, target, buf, endbuf, error))
1354 mono_error_set_bad_image_name (error, module->aot_name, "No image found for methodref with target");
1357 return mono_get_method_checked (ref.image, ref.token, NULL, NULL, error);
1361 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
1363 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf, error);
1366 #ifdef ENABLE_AOT_CACHE
1372 * - Add options for controlling the cache size
1373 * - Handle full cache by deleting old assemblies lru style
1374 * - Maybe add a threshold after an assembly is AOT compiled
1375 * - Add options for enabling this for specific main assemblies
1378 /* The cache directory */
1379 static char *cache_dir;
1381 /* The number of assemblies AOTed in this run */
1382 static int cache_count;
1384 /* Whenever to AOT in-process */
1385 static gboolean in_process;
1388 collect_assemblies (gpointer data, gpointer user_data)
1390 MonoAssembly *ass = data;
1391 GSList **l = user_data;
1393 *l = g_slist_prepend (*l, ass);
1396 #define SHA1_DIGEST_LENGTH 20
1399 * get_aot_config_hash:
1401 * Return a hash for all the version information an AOT module depends on.
1403 static G_GNUC_UNUSED char*
1404 get_aot_config_hash (MonoAssembly *assembly)
1407 GSList *l, *assembly_list = NULL;
1410 guint8 digest [SHA1_DIGEST_LENGTH];
1413 build_info = mono_get_runtime_build_info ();
1415 s = g_string_new (build_info);
1417 mono_assembly_foreach (collect_assemblies, &assembly_list);
1420 * The assembly list includes the current assembly as well, no need
1423 for (l = assembly_list; l; l = l->next) {
1424 MonoAssembly *ass = l->data;
1426 g_string_append (s, "_");
1427 g_string_append (s, ass->aname.name);
1428 g_string_append (s, "_");
1429 g_string_append (s, ass->image->guid);
1432 for (i = 0; i < s->len; ++i) {
1433 if (!isalnum (s->str [i]) && s->str [i] != '-')
1437 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1439 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1440 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1441 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1443 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1445 g_string_free (s, TRUE);
1451 aot_cache_init (void)
1455 enable_aot_cache = TRUE;
1460 * aot_cache_load_module:
1462 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1465 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1467 MonoAotCacheConfig *config;
1469 char *fname, *tmp2, *aot_options, *failure_fname;
1481 if (image_is_dynamic (assembly->image))
1484 /* Check in the list of assemblies enabled for aot caching */
1485 config = mono_get_aot_cache_config ();
1489 MonoDomain *domain = mono_domain_get ();
1490 MonoAssembly *entry_assembly = domain->entry_assembly;
1492 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1493 for (l = config->apps; l; l = l->next) {
1496 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1504 for (l = config->assemblies; l; l = l->next) {
1507 if (!strcmp (assembly->aname.name, n))
1517 home = g_get_home_dir ();
1520 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1521 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1522 g_mkdir_with_parents (cache_dir, 0777);
1526 * The same assembly can be used in multiple configurations, i.e. multiple
1527 * versions of the runtime, with multiple versions of dependent assemblies etc.
1528 * To handle this, we compute a version string containing all this information, hash it,
1529 * and use the hash as a filename suffix.
1531 hash = get_aot_config_hash (assembly);
1533 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, MONO_SOLIB_EXT);
1534 fname = g_build_filename (cache_dir, tmp2, NULL);
1538 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1539 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1542 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1546 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1548 * Can't AOT this during startup, so we AOT it when called later from
1549 * mono_aot_get_method ().
1553 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1555 /* Only AOT one assembly per run to avoid slowing down execution too much */
1556 if (cache_count > 0)
1560 /* Check for previous failure */
1561 failure_fname = g_strdup_printf ("%s.failure", fname);
1562 failure_file = fopen (failure_fname, "r");
1564 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1565 g_free (failure_fname);
1568 g_free (failure_fname);
1569 fclose (failure_file);
1572 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1575 * We need to invoke the AOT compiler here. There are multiple approaches:
1576 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1577 * its hard to make the new process load the same set of assemblies.
1578 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1580 * - fork a new process and do the work there.
1583 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1584 /* Maybe due this in another thread ? */
1585 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1587 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1588 failure_fname = g_strdup_printf ("%s.failure", fname);
1589 failure_file = fopen (failure_fname, "a+");
1590 fclose (failure_file);
1591 g_free (failure_fname);
1593 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1597 * - Avoid waiting for the aot process to finish ?
1598 * (less overhead, but multiple processes could aot the same assembly at the same time)
1607 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1608 logfile = fopen (logfile_name, "a+");
1609 g_free (logfile_name);
1611 dup2 (fileno (logfile), 1);
1612 dup2 (fileno (logfile), 2);
1614 aot_options = g_strdup_printf ("outfile=%s", fname);
1615 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1623 waitpid (pid, &exit_status, 0);
1624 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1625 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1627 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1631 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1639 aot_cache_init (void)
1644 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1652 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1656 guint16 *table, *entry;
1659 char *symbol = (char*)name;
1662 symbol = g_strdup_printf ("_%s", name);
1665 /* The first entry points to the hash */
1666 table = (guint16 *)globals [0];
1669 table_size = table [0];
1672 hash = mono_metadata_str_hash (symbol) % table_size;
1674 entry = &table [hash * 2];
1676 /* Search the hash for the index into the globals table */
1678 while (entry [0] != 0) {
1679 guint32 index = entry [0] - 1;
1680 guint32 next = entry [1];
1682 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1684 if (!strcmp (globals [index * 2], symbol)) {
1685 global_index = index;
1690 entry = &table [next * 2];
1696 if (global_index != -1)
1697 *value = globals [global_index * 2 + 1];
1704 char *err = mono_dl_symbol (module, name, value);
1712 find_amodule_symbol (MonoAotModule *amodule, const char *name, gpointer *value)
1714 g_assert (!(amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY));
1716 find_symbol (amodule->sofile, amodule->globals, name, value);
1720 mono_install_load_aot_data_hook (MonoLoadAotDataFunc load_func, MonoFreeAotDataFunc free_func, gpointer user_data)
1722 aot_data_load_func = load_func;
1723 aot_data_free_func = free_func;
1724 aot_data_func_user_data = user_data;
1727 /* Load the separate aot data file for ASSEMBLY */
1729 open_aot_data (MonoAssembly *assembly, MonoAotFileInfo *info, void **ret_handle)
1735 if (aot_data_load_func) {
1736 data = aot_data_load_func (assembly, info->datafile_size, aot_data_func_user_data, ret_handle);
1742 * Use <assembly name>.aotdata as the default implementation if no callback is given
1744 filename = g_strdup_printf ("%s.aotdata", assembly->image->name);
1745 map = mono_file_map_open (filename);
1747 data = mono_file_map (info->datafile_size, MONO_MMAP_READ, mono_file_map_fd (map), 0, ret_handle);
1754 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, guint8 *blob, char **out_msg)
1758 gboolean usable = TRUE;
1759 gboolean full_aot, safepoints;
1760 guint32 excluded_cpu_optimizations;
1762 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1763 msg = g_strdup_printf ("doesn't match assembly");
1767 build_info = mono_get_runtime_build_info ();
1768 if (strlen ((const char *)info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1769 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1772 g_free (build_info);
1774 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1776 if (mono_aot_only && !full_aot) {
1777 msg = g_strdup_printf ("not compiled with --aot=full");
1780 if (!mono_aot_only && full_aot) {
1781 msg = g_strdup_printf ("compiled with --aot=full");
1784 if (mono_llvm_only && !(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1785 msg = g_strdup_printf ("not compiled with --aot=llvmonly");
1789 /* mono_arch_find_imt_method () requires this */
1790 if ((info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && !mono_use_llvm) {
1791 msg = g_strdup_printf ("compiled against LLVM");
1794 if (!(info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && mono_use_llvm) {
1795 msg = g_strdup_printf ("not compiled against LLVM");
1799 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1800 msg = g_strdup_printf ("not compiled for debugging");
1804 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1805 if (info->opts & excluded_cpu_optimizations) {
1806 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1810 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1811 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1815 if (info->gc_name_index != -1) {
1816 char *gc_name = (char*)&blob [info->gc_name_index];
1817 const char *current_gc_name = mono_gc_get_gc_name ();
1819 if (strcmp (current_gc_name, gc_name) != 0) {
1820 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1825 safepoints = info->flags & MONO_AOT_FILE_FLAG_SAFEPOINTS;
1827 if (!safepoints && mono_threads_is_coop_enabled ()) {
1828 msg = g_strdup_printf ("not compiled with safepoints");
1837 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1840 get_call_table_entry (void *table, int index)
1842 #if defined(TARGET_ARM)
1847 ins_addr = (guint32*)table + index;
1849 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1851 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1852 return (char*)ins_addr + (offset * 2) + 8 + 1;
1854 offset = (((int)ins & 0xffffff) << 8) >> 8;
1855 return (char*)ins_addr + (offset * 4) + 8;
1857 #elif defined(TARGET_ARM64)
1858 return mono_arch_get_call_target ((guint8*)table + (index * 4) + 4);
1859 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1860 /* The callee expects an ip which points after the call */
1861 return mono_arch_get_call_target ((guint8*)table + (index * 5) + 5);
1863 g_assert_not_reached ();
1871 * Initialize the shared got entries for AMODULE.
1874 init_amodule_got (MonoAotModule *amodule)
1878 MonoJumpInfo *patches;
1879 guint32 got_offsets [128];
1883 /* These can't be initialized in load_aot_module () */
1884 if (amodule->shared_got [0] || amodule->got_initializing)
1887 amodule->got_initializing = TRUE;
1889 mp = mono_mempool_new ();
1890 npatches = amodule->info.nshared_got_entries;
1891 for (i = 0; i < npatches; ++i)
1892 got_offsets [i] = i;
1893 patches = decode_patches (amodule, mp, npatches, FALSE, got_offsets);
1895 for (i = 0; i < npatches; ++i) {
1898 if (ji->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR && !mono_gc_is_moving ()) {
1899 amodule->shared_got [i] = NULL;
1900 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_START && !mono_gc_is_moving ()) {
1901 amodule->shared_got [i] = NULL;
1902 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_BITS && !mono_gc_is_moving ()) {
1903 amodule->shared_got [i] = NULL;
1904 } else if (ji->type == MONO_PATCH_INFO_IMAGE) {
1905 amodule->shared_got [i] = amodule->assembly->image;
1906 } else if (ji->type == MONO_PATCH_INFO_MSCORLIB_GOT_ADDR) {
1907 if (mono_defaults.corlib) {
1908 MonoAotModule *mscorlib_amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
1910 if (mscorlib_amodule)
1911 amodule->shared_got [i] = mscorlib_amodule->got;
1913 amodule->shared_got [i] = amodule->got;
1915 } else if (ji->type == MONO_PATCH_INFO_AOT_MODULE) {
1916 amodule->shared_got [i] = amodule;
1918 amodule->shared_got [i] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, ji, FALSE, &error);
1919 mono_error_assert_ok (&error);
1924 for (i = 0; i < npatches; ++i)
1925 amodule->got [i] = amodule->shared_got [i];
1927 if (amodule->llvm_got) {
1928 for (i = 0; i < npatches; ++i)
1929 amodule->llvm_got [i] = amodule->shared_got [i];
1932 mono_mempool_destroy (mp);
1936 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1939 MonoAotModule *amodule;
1941 gboolean usable = TRUE;
1942 char *version_symbol = NULL;
1944 gpointer *globals = NULL;
1945 MonoAotFileInfo *info = NULL;
1947 gboolean do_load_image = TRUE;
1948 int align_double, align_int64;
1949 guint8 *aot_data = NULL;
1951 if (mono_compile_aot)
1954 if (assembly->image->aot_module)
1956 * Already loaded. This can happen because the assembly loading code might invoke
1957 * the assembly load hooks multiple times for the same assembly.
1961 if (image_is_dynamic (assembly->image) || assembly->ref_only)
1965 if (static_aot_modules)
1966 info = (MonoAotFileInfo *)g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1974 /* Statically linked AOT module */
1975 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1976 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
1977 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1978 globals = (void **)info->globals;
1982 if (enable_aot_cache)
1983 sofile = aot_cache_load_module (assembly, &aot_name);
1986 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
1988 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1991 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1995 char *basename = g_path_get_basename (assembly->image->name);
1996 aot_name = g_strdup_printf ("%s/mono/aot-cache/%s/%s%s", mono_assembly_getrootdir(), MONO_ARCHITECTURE, basename, MONO_SOLIB_EXT);
1998 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
2000 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
2007 if (mono_aot_only && assembly->image->tables [MONO_TABLE_METHOD].rows)
2008 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
2015 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
2016 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
2019 if (version_symbol) {
2020 /* Old file format */
2021 version = atoi (version_symbol);
2024 version = info->version;
2027 if (version != MONO_AOT_FILE_VERSION) {
2028 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
2034 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2035 aot_data = open_aot_data (assembly, info, &handle);
2037 blob = aot_data + info->table_offsets [MONO_AOT_TABLE_BLOB];
2039 blob = (guint8 *)info->blob;
2042 usable = check_usable (assembly, info, blob, &msg);
2046 if (mono_aot_only) {
2047 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", aot_name, msg);
2049 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.\n", aot_name, msg);
2054 mono_dl_close (sofile);
2055 assembly->image->aot_module = NULL;
2060 align_double = MONO_ABI_ALIGNOF (double);
2061 align_int64 = MONO_ABI_ALIGNOF (gint64);
2062 g_assert (info->double_align == align_double);
2063 g_assert (info->long_align == align_int64);
2064 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
2066 amodule = g_new0 (MonoAotModule, 1);
2067 amodule->aot_name = aot_name;
2068 amodule->assembly = assembly;
2070 memcpy (&amodule->info, info, sizeof (*info));
2072 amodule->got = (void **)amodule->info.jit_got;
2073 amodule->llvm_got = (void **)amodule->info.llvm_got;
2074 amodule->globals = globals;
2075 amodule->sofile = sofile;
2076 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
2077 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2078 amodule->shared_got = g_new0 (gpointer, info->nshared_got_entries);
2080 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2081 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
2082 amodule->tables [i] = aot_data + info->table_offsets [i];
2085 mono_os_mutex_init_recursive (&amodule->mutex);
2087 /* Read image table */
2089 guint32 table_len, i;
2092 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA)
2093 table = amodule->tables [MONO_AOT_TABLE_IMAGE_TABLE];
2095 table = (char *)info->image_table;
2098 table_len = *(guint32*)table;
2099 table += sizeof (guint32);
2100 amodule->image_table = g_new0 (MonoImage*, table_len);
2101 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
2102 amodule->image_guids = g_new0 (char*, table_len);
2103 amodule->image_table_len = table_len;
2104 for (i = 0; i < table_len; ++i) {
2105 MonoAssemblyName *aname = &(amodule->image_names [i]);
2107 aname->name = g_strdup (table);
2108 table += strlen (table) + 1;
2109 amodule->image_guids [i] = g_strdup (table);
2110 table += strlen (table) + 1;
2112 aname->culture = g_strdup (table);
2113 table += strlen (table) + 1;
2114 memcpy (aname->public_key_token, table, strlen (table) + 1);
2115 table += strlen (table) + 1;
2117 table = (char *)ALIGN_PTR_TO (table, 8);
2118 aname->flags = *(guint32*)table;
2120 aname->major = *(guint32*)table;
2122 aname->minor = *(guint32*)table;
2124 aname->build = *(guint32*)table;
2126 aname->revision = *(guint32*)table;
2131 amodule->jit_code_start = (guint8 *)info->jit_code_start;
2132 amodule->jit_code_end = (guint8 *)info->jit_code_end;
2133 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2134 amodule->blob = amodule->tables [MONO_AOT_TABLE_BLOB];
2135 amodule->method_info_offsets = amodule->tables [MONO_AOT_TABLE_METHOD_INFO_OFFSETS];
2136 amodule->ex_info_offsets = amodule->tables [MONO_AOT_TABLE_EX_INFO_OFFSETS];
2137 amodule->class_info_offsets = amodule->tables [MONO_AOT_TABLE_CLASS_INFO_OFFSETS];
2138 amodule->class_name_table = amodule->tables [MONO_AOT_TABLE_CLASS_NAME];
2139 amodule->extra_method_table = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_TABLE];
2140 amodule->extra_method_info_offsets = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS];
2141 amodule->got_info_offsets = amodule->tables [MONO_AOT_TABLE_GOT_INFO_OFFSETS];
2142 amodule->llvm_got_info_offsets = amodule->tables [MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS];
2144 amodule->blob = info->blob;
2145 amodule->method_info_offsets = (guint32 *)info->method_info_offsets;
2146 amodule->ex_info_offsets = (guint32 *)info->ex_info_offsets;
2147 amodule->class_info_offsets = (guint32 *)info->class_info_offsets;
2148 amodule->class_name_table = (guint16 *)info->class_name_table;
2149 amodule->extra_method_table = (guint32 *)info->extra_method_table;
2150 amodule->extra_method_info_offsets = (guint32 *)info->extra_method_info_offsets;
2151 amodule->got_info_offsets = info->got_info_offsets;
2152 amodule->llvm_got_info_offsets = info->llvm_got_info_offsets;
2154 amodule->unbox_trampolines = (guint32 *)info->unbox_trampolines;
2155 amodule->unbox_trampolines_end = (guint32 *)info->unbox_trampolines_end;
2156 amodule->unbox_trampoline_addresses = (guint32 *)info->unbox_trampoline_addresses;
2157 amodule->unwind_info = (guint8 *)info->unwind_info;
2158 amodule->mem_begin = amodule->jit_code_start;
2159 amodule->mem_end = (guint8 *)info->mem_end;
2160 amodule->plt = (guint8 *)info->plt;
2161 amodule->plt_end = (guint8 *)info->plt_end;
2162 amodule->mono_eh_frame = (guint8 *)info->mono_eh_frame;
2163 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = (guint8 *)info->specific_trampolines;
2164 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = (guint8 *)info->static_rgctx_trampolines;
2165 amodule->trampolines [MONO_AOT_TRAMP_IMT_THUNK] = (guint8 *)info->imt_thunks;
2166 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = (guint8 *)info->gsharedvt_arg_trampolines;
2168 if (!strcmp (assembly->aname.name, "mscorlib"))
2169 mscorlib_aot_module = amodule;
2171 /* Compute method addresses */
2172 amodule->methods = (void **)g_malloc0 (amodule->info.nmethods * sizeof (gpointer));
2173 for (i = 0; i < amodule->info.nmethods; ++i) {
2176 if (amodule->info.llvm_get_method) {
2177 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2179 addr = get_method (i);
2182 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2183 if (!addr && amodule->info.method_addresses) {
2184 addr = get_call_table_entry (amodule->info.method_addresses, i);
2186 if (addr == amodule->info.method_addresses)
2190 amodule->methods [i] = GINT_TO_POINTER (-1);
2192 amodule->methods [i] = addr;
2195 if (make_unreadable) {
2196 #ifndef TARGET_WIN32
2198 guint8 *page_start, *page_end;
2201 addr = amodule->mem_begin;
2203 len = amodule->mem_end - amodule->mem_begin;
2205 /* Round down in both directions to avoid modifying data which is not ours */
2206 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2207 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
2208 if (page_end > page_start) {
2209 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
2210 g_assert (err == 0);
2215 /* Compute the boundaries of LLVM code */
2216 if (info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM)
2217 compute_llvm_code_range (amodule, &amodule->llvm_code_start, &amodule->llvm_code_end);
2221 if (amodule->jit_code_start) {
2222 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->jit_code_start);
2223 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->jit_code_end);
2225 if (amodule->llvm_code_start) {
2226 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->llvm_code_start);
2227 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->llvm_code_end);
2230 g_hash_table_insert (aot_modules, assembly, amodule);
2233 if (amodule->jit_code_start)
2234 mono_jit_info_add_aot_module (assembly->image, amodule->jit_code_start, amodule->jit_code_end);
2235 if (amodule->llvm_code_start)
2236 mono_jit_info_add_aot_module (assembly->image, amodule->llvm_code_start, amodule->llvm_code_end);
2238 assembly->image->aot_module = amodule;
2240 if (mono_aot_only && !mono_llvm_only) {
2242 find_amodule_symbol (amodule, "specific_trampolines_page", (gpointer *)&code);
2243 amodule->use_page_trampolines = code != NULL;
2244 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2248 * Register the plt region as a single trampoline so we can unwind from this code
2250 mono_tramp_info_register (
2251 mono_tramp_info_create (
2254 amodule->plt_end - amodule->plt,
2256 mono_unwind_get_cie_program ()
2262 * Since we store methoddef and classdef tokens when referring to methods/classes in
2263 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2264 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2265 * non-lazily, since we can't handle out-of-date errors later.
2266 * The cached class info also depends on the exact assemblies.
2268 #if defined(__native_client__)
2269 /* TODO: Don't 'load_image' on mscorlib due to a */
2270 /* recursive loading problem. This should be */
2271 /* removed if mscorlib is loaded from disk. */
2272 if (strncmp(assembly->aname.name, "mscorlib", 8)) {
2273 do_load_image = TRUE;
2275 do_load_image = FALSE;
2278 if (do_load_image) {
2279 for (i = 0; i < amodule->image_table_len; ++i) {
2281 load_image (amodule, i, &error);
2282 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2286 if (amodule->out_of_date) {
2287 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: Module %s is unusable because a dependency is out-of-date.\n", assembly->image->name);
2289 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", aot_name);
2292 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loaded AOT Module for %s.\n", assembly->image->name);
2296 * mono_aot_register_module:
2298 * This should be called by embedding code to register AOT modules statically linked
2299 * into the executable. AOT_INFO should be the value of the
2300 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2303 mono_aot_register_module (gpointer *aot_info)
2307 MonoAotFileInfo *info = (MonoAotFileInfo *)aot_info;
2309 g_assert (info->version == MONO_AOT_FILE_VERSION);
2311 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
2312 globals = (void **)info->globals;
2316 aname = (char *)info->assembly_name;
2318 /* This could be called before startup */
2322 if (!static_aot_modules)
2323 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2325 g_hash_table_insert (static_aot_modules, aname, info);
2332 mono_aot_init (void)
2334 mono_os_mutex_init_recursive (&aot_mutex);
2335 mono_os_mutex_init_recursive (&aot_page_mutex);
2336 aot_modules = g_hash_table_new (NULL, NULL);
2338 #ifndef __native_client__
2339 mono_install_assembly_load_hook (load_aot_module, NULL);
2341 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2343 if (g_getenv ("MONO_LASTAOT"))
2344 mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
2349 mono_aot_cleanup (void)
2351 if (aot_jit_icall_hash)
2352 g_hash_table_destroy (aot_jit_icall_hash);
2354 g_hash_table_destroy (aot_modules);
2358 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2365 info->vtable_size = decode_value (buf, &buf);
2366 if (info->vtable_size == -1)
2369 flags = decode_value (buf, &buf);
2370 info->ghcimpl = (flags >> 0) & 0x1;
2371 info->has_finalize = (flags >> 1) & 0x1;
2372 info->has_cctor = (flags >> 2) & 0x1;
2373 info->has_nested_classes = (flags >> 3) & 0x1;
2374 info->blittable = (flags >> 4) & 0x1;
2375 info->has_references = (flags >> 5) & 0x1;
2376 info->has_static_refs = (flags >> 6) & 0x1;
2377 info->no_special_static_fields = (flags >> 7) & 0x1;
2378 info->is_generic_container = (flags >> 8) & 0x1;
2380 if (info->has_cctor) {
2381 res = decode_method_ref (module, &ref, buf, &buf, &error);
2382 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
2385 info->cctor_token = ref.token;
2387 if (info->has_finalize) {
2388 res = decode_method_ref (module, &ref, buf, &buf, &error);
2389 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
2392 info->finalize_image = ref.image;
2393 info->finalize_token = ref.token;
2396 info->instance_size = decode_value (buf, &buf);
2397 info->class_size = decode_value (buf, &buf);
2398 info->packing_size = decode_value (buf, &buf);
2399 info->min_align = decode_value (buf, &buf);
2407 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot, MonoError *error)
2410 MonoClass *klass = vtable->klass;
2411 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2413 MonoCachedClassInfo class_info;
2418 MonoError inner_error;
2420 mono_error_init (error);
2422 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2425 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2428 err = decode_cached_class_info (amodule, &class_info, p, &p);
2432 for (i = 0; i < slot; ++i) {
2433 decode_method_ref (amodule, &ref, p, &p, &inner_error);
2434 mono_error_cleanup (&inner_error); /* FIXME don't swallow the error */
2437 res = decode_method_ref (amodule, &ref, p, &p, &inner_error);
2438 mono_error_cleanup (&inner_error); /* FIXME don't swallow the error */
2441 if (ref.no_aot_trampoline)
2444 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2447 addr = mono_aot_get_method_from_token (domain, ref.image, ref.token, error);
2452 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2454 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2458 if (klass->rank || !amodule)
2461 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2463 err = decode_cached_class_info (amodule, res, p, &p);
2471 * mono_aot_get_class_from_name:
2473 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2474 * using a cache stored in the AOT file.
2475 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2477 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2481 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2483 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
2484 guint16 *table, *entry;
2487 char full_name_buf [1024];
2489 const char *name2, *name_space2;
2491 guint32 cols [MONO_TYPEDEF_SIZE];
2492 GHashTable *nspace_table;
2494 if (!amodule || !amodule->class_name_table)
2497 amodule_lock (amodule);
2501 /* First look in the cache */
2502 if (!amodule->name_cache)
2503 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2504 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2506 *klass = (MonoClass *)g_hash_table_lookup (nspace_table, name);
2508 amodule_unlock (amodule);
2513 table_size = amodule->class_name_table [0];
2514 table = amodule->class_name_table + 1;
2516 if (name_space [0] == '\0')
2517 full_name = g_strdup_printf ("%s", name);
2519 if (strlen (name_space) + strlen (name) < 1000) {
2520 sprintf (full_name_buf, "%s.%s", name_space, name);
2521 full_name = full_name_buf;
2523 full_name = g_strdup_printf ("%s.%s", name_space, name);
2526 hash = mono_metadata_str_hash (full_name) % table_size;
2527 if (full_name != full_name_buf)
2530 entry = &table [hash * 2];
2532 if (entry [0] != 0) {
2533 t = &image->tables [MONO_TABLE_TYPEDEF];
2536 guint32 index = entry [0];
2537 guint32 next = entry [1];
2538 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2540 name_table_accesses ++;
2542 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2544 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2545 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2547 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2549 amodule_unlock (amodule);
2550 *klass = mono_class_get_checked (image, token, &error);
2551 if (!mono_error_ok (&error))
2552 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2556 amodule_lock (amodule);
2557 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2558 if (!nspace_table) {
2559 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2560 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2562 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2563 amodule_unlock (amodule);
2569 entry = &table [next * 2];
2576 amodule_unlock (amodule);
2581 /* Compute the boundaries of the LLVM code for AMODULE. */
2583 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end)
2586 int version, fde_count;
2589 if (amodule->info.llvm_get_method) {
2590 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2592 *code_start = (guint8 *)get_method (-1);
2593 *code_end = (guint8 *)get_method (-2);
2595 g_assert (*code_end > *code_start);
2599 g_assert (amodule->mono_eh_frame);
2601 p = amodule->mono_eh_frame;
2603 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2607 g_assert (version == 3);
2610 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2612 fde_count = *(guint32*)p;
2616 if (fde_count > 0) {
2617 *code_start = (guint8 *)amodule->methods [table [0]];
2618 *code_end = (guint8*)amodule->methods [table [(fde_count - 1) * 2]] + table [fde_count * 2];
2626 is_llvm_code (MonoAotModule *amodule, guint8 *code)
2628 if ((guint8*)code >= amodule->llvm_code_start && (guint8*)code < amodule->llvm_code_end)
2635 is_thumb_code (MonoAotModule *amodule, guint8 *code)
2637 if (is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_THUMB))
2644 * decode_llvm_mono_eh_frame:
2646 * Decode the EH information emitted by our modified LLVM compiler and construct a
2647 * MonoJitInfo structure from it.
2648 * LOCKING: Acquires the domain lock.
2651 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
2652 MonoMethod *method, guint8 *code, guint32 code_len,
2653 MonoJitExceptionInfo *clauses, int num_clauses,
2654 MonoJitInfoFlags flags,
2656 int *this_reg, int *this_offset)
2658 guint8 *p, *code1, *code2;
2659 guint8 *fde, *cie, *code_start, *code_end;
2660 int version, fde_count;
2662 int i, pos, left, right;
2663 MonoJitExceptionInfo *ei;
2664 guint32 fde_len, ei_len, nested_len, nindex;
2665 gpointer *type_info;
2667 MonoLLVMFDEInfo info;
2669 if (!amodule->mono_eh_frame) {
2670 jinfo = (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, num_clauses, 0));
2671 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, 0);
2672 memcpy (jinfo->clauses, clauses, num_clauses * sizeof (MonoJitExceptionInfo));
2676 g_assert (amodule->mono_eh_frame && code);
2678 p = amodule->mono_eh_frame;
2680 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2684 g_assert (version == 3);
2686 /* func_encoding = *p; */
2688 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2690 fde_count = *(guint32*)p;
2694 /* There is +1 entry in the table */
2695 cie = p + ((fde_count + 1) * 8);
2697 /* Binary search in the table to find the entry for code */
2701 pos = (left + right) / 2;
2703 /* The table contains method index/fde offset pairs */
2704 g_assert (table [(pos * 2)] != -1);
2705 code1 = (guint8 *)amodule->methods [table [(pos * 2)]];
2706 if (pos + 1 == fde_count) {
2707 code2 = amodule->llvm_code_end;
2709 g_assert (table [(pos + 1) * 2] != -1);
2710 code2 = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2715 else if (code >= code2)
2721 code_start = (guint8 *)amodule->methods [table [(pos * 2)]];
2722 if (pos + 1 == fde_count) {
2723 /* The +1 entry in the table contains the length of the last method */
2724 int len = table [(pos + 1) * 2];
2725 code_end = code_start + len;
2727 code_end = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2730 code_len = code_end - code_start;
2732 g_assert (code >= code_start && code < code_end);
2734 if (is_thumb_code (amodule, code_start))
2735 /* Clear thumb flag */
2736 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2738 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2739 /* This won't overflow because there is +1 entry in the table */
2740 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2742 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info);
2744 ei_len = info.ex_info_len;
2745 type_info = info.type_info;
2746 *this_reg = info.this_reg;
2747 *this_offset = info.this_offset;
2749 /* Count number of nested clauses */
2751 for (i = 0; i < ei_len; ++i) {
2752 /* This might be unaligned */
2753 gint32 cindex1 = read32 (type_info [i]);
2756 for (l = nesting [cindex1]; l; l = l->next)
2761 * LLVM might represent one IL region with multiple regions, so have to
2762 * allocate a new JI.
2765 (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, ei_len + nested_len, 0));
2766 mono_jit_info_init (jinfo, method, code, code_len, flags, ei_len + nested_len, 0);
2768 jinfo->unwind_info = mono_cache_unwind_info (info.unw_info, info.unw_info_len);
2769 /* This signals that unwind_info points to a normal cached unwind info */
2770 jinfo->from_aot = 0;
2771 jinfo->from_llvm = 1;
2773 for (i = 0; i < ei_len; ++i) {
2775 * clauses contains the original IL exception info saved by the AOT
2776 * compiler, we have to combine that with the information produced by LLVM
2778 /* The type_info entries contain IL clause indexes */
2779 int clause_index = read32 (type_info [i]);
2780 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2781 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2783 g_assert (clause_index < num_clauses);
2784 jei->flags = orig_jei->flags;
2785 jei->data.catch_class = orig_jei->data.catch_class;
2787 jei->try_start = ei [i].try_start;
2788 jei->try_end = ei [i].try_end;
2789 jei->handler_start = ei [i].handler_start;
2790 jei->clause_index = clause_index;
2792 if (is_thumb_code (amodule, (guint8 *)jei->try_start)) {
2793 jei->try_start = (void*)((mgreg_t)jei->try_start & ~1);
2794 jei->try_end = (void*)((mgreg_t)jei->try_end & ~1);
2795 /* Make sure we transition to thumb when a handler starts */
2796 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2800 /* See exception_cb () in mini-llvm.c as to why this is needed */
2802 for (i = 0; i < ei_len; ++i) {
2803 gint32 cindex1 = read32 (type_info [i]);
2806 for (l = nesting [cindex1]; l; l = l->next) {
2807 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2808 MonoJitExceptionInfo *nesting_ei;
2809 MonoJitExceptionInfo *nesting_clause = &clauses [nesting_cindex];
2811 nesting_ei = &jinfo->clauses [nindex];
2814 memcpy (nesting_ei, &jinfo->clauses [i], sizeof (MonoJitExceptionInfo));
2815 nesting_ei->flags = nesting_clause->flags;
2816 nesting_ei->data.catch_class = nesting_clause->data.catch_class;
2817 nesting_ei->clause_index = nesting_cindex;
2820 g_assert (nindex == ei_len + nested_len);
2826 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2830 if (async_context) {
2831 res = mono_domain_alloc0_lock_free (domain, size);
2832 InterlockedExchangeAdd (&async_jit_info_size, size);
2834 res = mono_domain_alloc0 (domain, size);
2840 * LOCKING: Acquires the domain lock.
2841 * In async context, this is async safe.
2844 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2845 MonoMethod *method, guint8* ex_info,
2846 guint8 *code, guint32 code_len)
2849 int i, buf_len, num_clauses, len;
2851 MonoJitInfoFlags flags = JIT_INFO_NONE;
2852 guint unwind_info, eflags;
2853 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2854 gboolean from_llvm, has_gc_map;
2856 int try_holes_info_size, num_holes;
2857 int this_reg = 0, this_offset = 0;
2860 /* Load the method info from the AOT file */
2861 async = mono_thread_info_is_async_context ();
2864 eflags = decode_value (p, &p);
2865 has_generic_jit_info = (eflags & 1) != 0;
2866 has_dwarf_unwind_info = (eflags & 2) != 0;
2867 has_clauses = (eflags & 4) != 0;
2868 has_seq_points = (eflags & 8) != 0;
2869 from_llvm = (eflags & 16) != 0;
2870 has_try_block_holes = (eflags & 32) != 0;
2871 has_gc_map = (eflags & 64) != 0;
2872 has_arch_eh_jit_info = (eflags & 128) != 0;
2874 if (has_dwarf_unwind_info) {
2875 unwind_info = decode_value (p, &p);
2876 g_assert (unwind_info < (1 << 30));
2878 unwind_info = decode_value (p, &p);
2880 if (has_generic_jit_info)
2881 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2883 if (has_try_block_holes) {
2884 num_holes = decode_value (p, &p);
2885 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2886 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2888 num_holes = try_holes_info_size = 0;
2891 if (has_arch_eh_jit_info) {
2892 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2893 /* Overwrite the original code_len which includes alignment padding */
2894 code_len = decode_value (p, &p);
2897 /* Exception table */
2899 num_clauses = decode_value (p, &p);
2904 MonoJitExceptionInfo *clauses;
2911 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2914 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2915 nesting = g_new0 (GSList*, num_clauses);
2917 for (i = 0; i < num_clauses; ++i) {
2918 MonoJitExceptionInfo *ei = &clauses [i];
2920 ei->flags = decode_value (p, &p);
2922 if (decode_value (p, &p)) {
2923 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
2924 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2927 ei->clause_index = i;
2929 ei->try_offset = decode_value (p, &p);
2930 ei->try_len = decode_value (p, &p);
2931 ei->handler_offset = decode_value (p, &p);
2932 ei->handler_len = decode_value (p, &p);
2934 /* Read the list of nesting clauses */
2936 int nesting_index = decode_value (p, &p);
2937 if (nesting_index == -1)
2939 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2943 jinfo = decode_llvm_mono_eh_frame (amodule, domain, method, code, code_len, clauses, num_clauses, flags, nesting, &this_reg, &this_offset);
2946 for (i = 0; i < num_clauses; ++i)
2947 g_slist_free (nesting [i]);
2950 len = mono_jit_info_size (flags, num_clauses, num_holes);
2951 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
2952 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
2954 for (i = 0; i < jinfo->num_clauses; ++i) {
2955 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2957 ei->flags = decode_value (p, &p);
2959 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
2960 /* Not used for catch clauses */
2961 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
2962 ei->exvar_offset = decode_value (p, &p);
2964 ei->exvar_offset = decode_value (p, &p);
2967 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
2968 ei->data.filter = code + decode_value (p, &p);
2970 int len = decode_value (p, &p);
2976 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
2977 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2982 ei->try_start = code + decode_value (p, &p);
2983 ei->try_end = code + decode_value (p, &p);
2984 ei->handler_start = code + decode_value (p, &p);
2987 jinfo->unwind_info = unwind_info;
2988 jinfo->domain_neutral = 0;
2989 jinfo->from_aot = 1;
2992 if (has_try_block_holes) {
2993 MonoTryBlockHoleTableJitInfo *table;
2995 g_assert (jinfo->has_try_block_holes);
2997 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
3000 table->num_holes = (guint16)num_holes;
3001 for (i = 0; i < num_holes; ++i) {
3002 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
3003 hole->clause = decode_value (p, &p);
3004 hole->length = decode_value (p, &p);
3005 hole->offset = decode_value (p, &p);
3009 if (has_arch_eh_jit_info) {
3010 MonoArchEHJitInfo *eh_info;
3012 g_assert (jinfo->has_arch_eh_info);
3014 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
3015 eh_info->stack_size = decode_value (p, &p);
3016 eh_info->epilog_size = decode_value (p, &p);
3020 /* The rest is not needed in async mode */
3021 jinfo->async = TRUE;
3022 jinfo->d.aot_info = amodule;
3027 if (has_generic_jit_info) {
3028 MonoGenericJitInfo *gi;
3031 g_assert (jinfo->has_generic_jit_info);
3033 gi = mono_jit_info_get_generic_jit_info (jinfo);
3036 gi->nlocs = decode_value (p, &p);
3038 gi->locations = (MonoDwarfLocListEntry *)alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
3039 for (i = 0; i < gi->nlocs; ++i) {
3040 MonoDwarfLocListEntry *entry = &gi->locations [i];
3042 entry->is_reg = decode_value (p, &p);
3043 entry->reg = decode_value (p, &p);
3045 entry->offset = decode_value (p, &p);
3047 entry->from = decode_value (p, &p);
3048 entry->to = decode_value (p, &p);
3053 gi->has_this = this_reg != -1;
3054 gi->this_reg = this_reg;
3055 gi->this_offset = this_offset;
3057 gi->has_this = decode_value (p, &p);
3058 gi->this_reg = decode_value (p, &p);
3059 gi->this_offset = decode_value (p, &p);
3063 len = decode_value (p, &p);
3067 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p, &error);
3068 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3071 gi->generic_sharing_context = alloc0_jit_info_data (domain, sizeof (MonoGenericSharingContext), async);
3072 if (decode_value (p, &p)) {
3074 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
3076 gsctx->is_gsharedvt = TRUE;
3080 if (method && has_seq_points) {
3081 MonoSeqPointInfo *seq_points;
3083 p += mono_seq_point_info_read (&seq_points, p, FALSE);
3085 mono_domain_lock (domain);
3086 /* This could be set already since this function can be called more than once for the same method */
3087 if (!g_hash_table_lookup (domain_jit_info (domain)->seq_points, method))
3088 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
3090 mono_seq_point_info_free (seq_points);
3091 mono_domain_unlock (domain);
3094 /* Load debug info */
3095 buf_len = decode_value (p, &p);
3097 mono_debug_add_aot_method (domain, method, code, p, buf_len);
3101 int map_size = decode_value (p, &p);
3102 /* The GC map requires 4 bytes of alignment */
3103 while ((guint64)(gsize)p % 4)
3109 if (amodule != jinfo->d.method->klass->image->aot_module) {
3112 ji_to_amodule = g_hash_table_new (NULL, NULL);
3113 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
3121 amodule_contains_code_addr (MonoAotModule *amodule, guint8 *code)
3123 return (code >= amodule->jit_code_start && code <= amodule->jit_code_end) ||
3124 (code >= amodule->llvm_code_start && code <= amodule->llvm_code_end);
3128 * mono_aot_get_unwind_info:
3130 * Return a pointer to the DWARF unwind info belonging to JI.
3133 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
3135 MonoAotModule *amodule;
3137 guint8 *code = (guint8 *)ji->code_start;
3140 amodule = (MonoAotModule *)ji->d.aot_info;
3142 amodule = (MonoAotModule *)jinfo_get_method (ji)->klass->image->aot_module;
3144 g_assert (ji->from_aot);
3146 if (!amodule_contains_code_addr (amodule, code)) {
3147 /* ji belongs to a different aot module than amodule */
3149 g_assert (ji_to_amodule);
3150 amodule = (MonoAotModule *)g_hash_table_lookup (ji_to_amodule, ji);
3152 g_assert (amodule_contains_code_addr (amodule, code));
3156 p = amodule->unwind_info + ji->unwind_info;
3157 *unwind_info_len = decode_value (p, &p);
3162 msort_method_addresses_internal (gpointer *array, int *indexes, int lo, int hi, gpointer *scratch, int *scratch_indexes)
3164 int mid = (lo + hi) / 2;
3171 for (i = lo; i < hi; ++i)
3172 if (array [i] > array [i + 1])
3175 /* Already sorted */
3179 msort_method_addresses_internal (array, indexes, lo, mid, scratch, scratch_indexes);
3180 msort_method_addresses_internal (array, indexes, mid + 1, hi, scratch, scratch_indexes);
3182 if (array [mid] < array [mid + 1])
3188 for (i = lo; i <= hi; i ++) {
3189 if (t_lo <= mid && ((t_hi > hi) || array [t_lo] < array [t_hi])) {
3190 scratch [i] = array [t_lo];
3191 scratch_indexes [i] = indexes [t_lo];
3194 scratch [i] = array [t_hi];
3195 scratch_indexes [i] = indexes [t_hi];
3199 for (i = lo; i <= hi; ++i) {
3200 array [i] = scratch [i];
3201 indexes [i] = scratch_indexes [i];
3206 msort_method_addresses (gpointer *array, int *indexes, int len)
3209 int *scratch_indexes;
3211 scratch = g_new (gpointer, len);
3212 scratch_indexes = g_new (int, len);
3213 msort_method_addresses_internal (array, indexes, 0, len - 1, scratch, scratch_indexes);
3215 g_free (scratch_indexes);
3219 * mono_aot_find_jit_info:
3221 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3222 * to the jit info tables.
3223 * FIXME: Large sizes in the lock free allocator
3226 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3229 int pos, left, right, code_len;
3230 int method_index, table_len;
3232 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
3233 MonoMethod *method = NULL;
3235 guint8 *code, *ex_info, *p;
3239 guint8 *code1, *code2;
3246 nmethods = amodule->info.nmethods;
3248 if (domain != mono_get_root_domain ())
3252 if (!amodule_contains_code_addr (amodule, (guint8 *)addr))
3255 async = mono_thread_info_is_async_context ();
3257 /* Compute a sorted table mapping code to method indexes. */
3258 if (!amodule->sorted_methods) {
3260 gpointer *methods = g_new0 (gpointer, nmethods);
3261 int *method_indexes = g_new0 (int, nmethods);
3262 int methods_len = 0;
3264 for (i = 0; i < nmethods; ++i) {
3265 /* Skip the -1 entries to speed up sorting */
3266 if (amodule->methods [i] == GINT_TO_POINTER (-1))
3268 methods [methods_len] = amodule->methods [i];
3269 method_indexes [methods_len] = i;
3272 /* Use a merge sort as this is mostly sorted */
3273 msort_method_addresses (methods, method_indexes, methods_len);
3274 for (i = 0; i < methods_len -1; ++i)
3275 g_assert (methods [i] <= methods [i + 1]);
3276 amodule->sorted_methods_len = methods_len;
3277 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_methods, methods, NULL) != NULL)
3278 /* Somebody got in before us */
3280 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_method_indexes, method_indexes, NULL) != NULL)
3281 /* Somebody got in before us */
3282 g_free (method_indexes);
3285 /* Binary search in the sorted_methods table */
3286 methods = amodule->sorted_methods;
3287 methods_len = amodule->sorted_methods_len;
3288 code = (guint8 *)addr;
3290 right = methods_len;
3292 pos = (left + right) / 2;
3294 code1 = (guint8 *)methods [pos];
3295 if (pos + 1 == methods_len) {
3296 if (code1 >= amodule->jit_code_start && code1 < amodule->jit_code_end)
3297 code2 = amodule->jit_code_end;
3299 code2 = amodule->llvm_code_end;
3301 code2 = (guint8 *)methods [pos + 1];
3306 else if (code >= code2)
3312 g_assert (addr >= methods [pos]);
3313 if (pos + 1 < methods_len)
3314 g_assert (addr < methods [pos + 1]);
3315 method_index = amodule->sorted_method_indexes [pos];
3317 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3319 JitInfoMap *table = amodule->async_jit_info_table;
3323 len = table [0].method_index;
3324 for (i = 1; i < len; ++i) {
3325 if (table [i].method_index == method_index)
3326 return table [i].jinfo;
3331 code = (guint8 *)amodule->methods [method_index];
3332 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3334 if (pos == methods_len - 1) {
3335 if (code >= amodule->jit_code_start && code < amodule->jit_code_end)
3336 code_len = amodule->jit_code_end - code;
3338 code_len = amodule->llvm_code_end - code;
3340 code_len = (guint8*)methods [pos + 1] - (guint8*)methods [pos];
3343 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3345 /* Might be a wrapper/extra method */
3347 if (amodule->extra_methods) {
3348 amodule_lock (amodule);
3349 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3350 amodule_unlock (amodule);
3356 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3358 * This is hit for extra methods which are called directly, so they are
3359 * not in amodule->extra_methods.
3361 table_len = amodule->extra_method_info_offsets [0];
3362 table = amodule->extra_method_info_offsets + 1;
3369 pos = ((left + right) / 2);
3371 g_assert (pos < table_len);
3373 if (table [pos * 2] < method_index)
3375 else if (table [pos * 2] > method_index)
3381 p = amodule->blob + table [(pos * 2) + 1];
3382 method = decode_resolve_method_ref (amodule, p, &p, &error);
3383 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3385 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3389 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3390 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3392 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3399 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3401 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code, code_len);
3403 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3405 /* Add it to the normal JitInfo tables */
3407 JitInfoMap *old_table, *new_table;
3411 * Use a simple inmutable table with linear search to cache async jit info entries.
3412 * This assumes that the number of entries is small.
3415 /* Copy the table, adding a new entry at the end */
3416 old_table = amodule->async_jit_info_table;
3418 len = old_table[0].method_index;
3421 new_table = (JitInfoMap *)alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3423 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3424 new_table [0].method_index = len + 1;
3425 new_table [len].method_index = method_index;
3426 new_table [len].jinfo = jinfo;
3428 mono_memory_barrier ();
3429 if (InterlockedCompareExchangePointer ((volatile gpointer *)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3433 mono_jit_info_table_add (domain, jinfo);
3436 if ((guint8*)addr >= (guint8*)jinfo->code_start + jinfo->code_size)
3437 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3444 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3453 case MONO_PATCH_INFO_METHOD:
3454 case MONO_PATCH_INFO_METHOD_JUMP:
3455 case MONO_PATCH_INFO_ICALL_ADDR:
3456 case MONO_PATCH_INFO_ICALL_ADDR_CALL:
3457 case MONO_PATCH_INFO_METHOD_RGCTX:
3458 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3462 res = decode_method_ref (aot_module, &ref, p, &p, &error);
3463 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3467 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)) {
3468 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3469 ji->type = MONO_PATCH_INFO_ABS;
3473 ji->data.method = ref.method;
3476 ji->data.method = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
3477 if (!ji->data.method)
3478 g_error ("AOT Runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3480 g_assert (ji->data.method);
3481 mono_class_init (ji->data.method->klass);
3485 case MONO_PATCH_INFO_INTERNAL_METHOD:
3486 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3487 guint32 len = decode_value (p, &p);
3489 ji->data.name = (char*)p;
3493 case MONO_PATCH_INFO_METHODCONST:
3495 ji->data.method = decode_resolve_method_ref (aot_module, p, &p, &error);
3496 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3497 if (!ji->data.method)
3500 case MONO_PATCH_INFO_VTABLE:
3501 case MONO_PATCH_INFO_CLASS:
3502 case MONO_PATCH_INFO_IID:
3503 case MONO_PATCH_INFO_ADJUSTED_IID:
3505 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3506 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3507 if (!ji->data.klass)
3510 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3511 ji->data.del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3512 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p, &error);
3513 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3514 if (!ji->data.del_tramp->klass)
3516 if (decode_value (p, &p)) {
3517 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3518 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3519 if (!ji->data.del_tramp->method)
3522 ji->data.del_tramp->is_virtual = decode_value (p, &p) ? TRUE : FALSE;
3524 case MONO_PATCH_INFO_IMAGE:
3525 ji->data.image = load_image (aot_module, decode_value (p, &p), &error);
3526 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3527 if (!ji->data.image)
3530 case MONO_PATCH_INFO_FIELD:
3531 case MONO_PATCH_INFO_SFLDA:
3533 ji->data.field = decode_field_info (aot_module, p, &p);
3534 if (!ji->data.field)
3537 case MONO_PATCH_INFO_SWITCH:
3538 ji->data.table = (MonoJumpInfoBBTable *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3539 ji->data.table->table_size = decode_value (p, &p);
3540 table = (void **)mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3541 ji->data.table->table = (MonoBasicBlock**)table;
3542 for (i = 0; i < ji->data.table->table_size; i++)
3543 table [i] = (gpointer)(gssize)decode_value (p, &p);
3545 case MONO_PATCH_INFO_R4: {
3548 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3549 val = decode_value (p, &p);
3550 *(float*)ji->data.target = *(float*)&val;
3553 case MONO_PATCH_INFO_R8: {
3557 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3559 val [0] = decode_value (p, &p);
3560 val [1] = decode_value (p, &p);
3561 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3562 *(double*)ji->data.target = *(double*)&v;
3565 case MONO_PATCH_INFO_LDSTR:
3566 image = load_image (aot_module, decode_value (p, &p), &error);
3567 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3570 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3572 case MONO_PATCH_INFO_RVA:
3573 case MONO_PATCH_INFO_DECLSEC:
3574 case MONO_PATCH_INFO_LDTOKEN:
3575 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3577 image = load_image (aot_module, decode_value (p, &p), &error);
3578 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3581 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3583 ji->data.token->has_context = decode_value (p, &p);
3584 if (ji->data.token->has_context) {
3585 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p, &error);
3586 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3591 case MONO_PATCH_INFO_EXC_NAME:
3592 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3593 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3594 if (!ji->data.klass)
3596 ji->data.name = ji->data.klass->name;
3598 case MONO_PATCH_INFO_METHOD_REL:
3599 ji->data.offset = decode_value (p, &p);
3601 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3602 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3603 case MONO_PATCH_INFO_GC_NURSERY_START:
3604 case MONO_PATCH_INFO_GC_NURSERY_BITS:
3605 case MONO_PATCH_INFO_JIT_TLS_ID:
3607 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3608 ji->data.index = decode_value (p, &p);
3610 case MONO_PATCH_INFO_RGCTX_FETCH:
3611 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
3613 MonoJumpInfoRgctxEntry *entry;
3614 guint32 offset, val;
3617 offset = decode_value (p, &p);
3618 val = decode_value (p, &p);
3620 entry = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3621 p2 = aot_module->blob + offset;
3622 entry->method = decode_resolve_method_ref (aot_module, p2, &p2, &error);
3623 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3624 entry->info_type = (MonoRgctxInfoType)((val >> 1) & 0xff);
3625 entry->data = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3626 entry->data->type = (MonoJumpInfoType)((val >> 9) & 0xff);
3627 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3629 res = decode_patch (aot_module, mp, entry->data, p, &p);
3632 ji->data.rgctx_entry = entry;
3635 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3636 case MONO_PATCH_INFO_AOT_MODULE:
3637 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
3639 case MONO_PATCH_INFO_SIGNATURE:
3640 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
3641 ji->data.target = decode_signature (aot_module, p, &p);
3643 case MONO_PATCH_INFO_TLS_OFFSET:
3644 ji->data.target = GINT_TO_POINTER (decode_value (p, &p));
3646 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3647 MonoJumpInfoGSharedVtCall *info = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3648 info->sig = decode_signature (aot_module, p, &p);
3649 g_assert (info->sig);
3650 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3651 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3653 ji->data.target = info;
3656 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3657 MonoGSharedVtMethodInfo *info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3660 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3661 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3663 info->num_entries = decode_value (p, &p);
3664 info->count_entries = info->num_entries;
3665 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3666 for (i = 0; i < info->num_entries; ++i) {
3667 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
3669 template_->info_type = (MonoRgctxInfoType)decode_value (p, &p);
3670 switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) {
3671 case MONO_PATCH_INFO_CLASS: {
3672 MonoClass *klass = decode_klass_ref (aot_module, p, &p, &error);
3673 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3676 template_->data = &klass->byval_arg;
3679 case MONO_PATCH_INFO_FIELD:
3680 template_->data = decode_field_info (aot_module, p, &p);
3681 if (!template_->data)
3685 g_assert_not_reached ();
3689 ji->data.target = info;
3692 case MONO_PATCH_INFO_LDSTR_LIT: {
3693 int len = decode_value (p, &p);
3696 s = (char *)mono_mempool_alloc0 (mp, len + 1);
3697 memcpy (s, p, len + 1);
3700 ji->data.target = s;
3703 case MONO_PATCH_INFO_VIRT_METHOD: {
3704 MonoJumpInfoVirtMethod *info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
3706 info->klass = decode_klass_ref (aot_module, p, &p, &error);
3707 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3709 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3710 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3712 ji->data.target = info;
3715 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
3717 case MONO_PATCH_INFO_AOT_JIT_INFO:
3718 ji->data.index = decode_value (p, &p);
3721 g_warning ("unhandled type %d", ji->type);
3722 g_assert_not_reached ();
3736 * Decode a list of patches identified by the got offsets in GOT_OFFSETS. Return an array of
3737 * MonoJumpInfo structures allocated from MP.
3739 static MonoJumpInfo*
3740 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets)
3742 MonoJumpInfo *patches;
3745 guint32 *got_info_offsets;
3750 got = amodule->llvm_got;
3751 got_info_offsets = (guint32 *)amodule->llvm_got_info_offsets;
3754 got_info_offsets = (guint32 *)amodule->got_info_offsets;
3757 patches = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3758 for (i = 0; i < n_patches; ++i) {
3759 guint8 *p = amodule->blob + mono_aot_get_offset (got_info_offsets, got_offsets [i]);
3762 ji->type = (MonoJumpInfoType)decode_value (p, &p);
3764 /* See load_method () for SFLDA */
3765 if (got && got [got_offsets [i]] && ji->type != MONO_PATCH_INFO_SFLDA) {
3766 /* Already loaded */
3768 res = decode_patch (amodule, mp, ji, p, &p);
3777 static MonoJumpInfo*
3778 load_patch_info (MonoAotModule *amodule, MonoMemPool *mp, int n_patches,
3779 gboolean llvm, guint32 **got_slots,
3780 guint8 *buf, guint8 **endbuf)
3782 MonoJumpInfo *patches;
3788 *got_slots = (guint32 *)g_malloc (sizeof (guint32) * n_patches);
3789 for (pindex = 0; pindex < n_patches; ++pindex) {
3790 (*got_slots)[pindex] = decode_value (p, &p);
3793 patches = decode_patches (amodule, mp, n_patches, llvm, *got_slots);
3795 g_free (*got_slots);
3805 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3808 * Jump addresses cannot be patched by the trampoline code since it
3809 * does not have access to the caller's address. Instead, we collect
3810 * the addresses of the GOT slots pointing to a method, and patch
3811 * them after the method has been compiled.
3813 MonoJitDomainInfo *info = domain_jit_info (domain);
3816 mono_domain_lock (domain);
3817 if (!info->jump_target_got_slot_hash)
3818 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3819 list = (GSList *)g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3820 list = g_slist_prepend (list, got_slot);
3821 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3822 mono_domain_unlock (domain);
3828 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3829 * pointer to the native code of the method, or NULL if not found.
3830 * METHOD might not be set if the caller only has the image/token info.
3833 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index,
3836 MonoJitInfo *jinfo = NULL;
3837 guint8 *code = NULL, *info;
3840 mono_error_init (error);
3842 init_amodule_got (amodule);
3844 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE) {
3846 /* The caller cannot handle this */
3847 g_assert_not_reached ();
3851 if (domain != mono_get_root_domain ())
3852 /* Non shared AOT code can't be used in other appdomains */
3855 if (amodule->out_of_date)
3858 if (amodule->info.llvm_get_method) {
3860 * Obtain the method address by calling a generated function in the LLVM module.
3862 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
3863 code = (guint8 *)get_method (method_index);
3868 if (amodule->methods [method_index] == GINT_TO_POINTER (-1)) {
3869 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3873 method = mono_get_method_checked (image, token, NULL, NULL, error);
3877 full_name = mono_method_full_name (method, TRUE);
3878 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3883 code = (guint8 *)amodule->methods [method_index];
3886 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3888 if (!amodule->methods_loaded) {
3889 amodule_lock (amodule);
3890 if (!amodule->methods_loaded) {
3893 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3894 mono_memory_barrier ();
3895 amodule->methods_loaded = loaded;
3897 amodule_unlock (amodule);
3900 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3903 if (mono_last_aot_method != -1) {
3904 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3906 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3908 method = mono_get_method_checked (image, token, NULL, NULL, error);
3913 char *name = mono_method_full_name (method, TRUE);
3914 g_print ("LAST AOT METHOD: %s.\n", name);
3917 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3922 if (!(is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY))) {
3923 res = init_method (amodule, method_index, method, NULL, NULL, error);
3928 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3932 method = mono_get_method_checked (image, token, NULL, NULL, error);
3937 full_name = mono_method_full_name (method, TRUE);
3940 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3942 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
3946 amodule_lock (amodule);
3948 InterlockedIncrement (&mono_jit_stats.methods_aot);
3950 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
3954 if (method && method->wrapper_type)
3955 g_hash_table_insert (amodule->method_to_code, method, code);
3957 amodule_unlock (amodule);
3959 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
3963 method = mono_get_method_checked (amodule->assembly->image, token, NULL, NULL, error);
3967 mono_profiler_method_jit (method);
3968 jinfo = mono_jit_info_table_find (domain, (char*)code);
3970 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
3983 find_aot_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, guint32 hash_full)
3986 guint32 table_size, entry_size, hash;
3987 guint32 *table, *entry;
3989 static guint32 n_extra_decodes;
3991 if (!amodule || amodule->out_of_date)
3994 table_size = amodule->extra_method_table [0];
3995 hash = hash_full % table_size;
3996 table = amodule->extra_method_table + 1;
3999 entry = &table [hash * entry_size];
4006 guint32 key = entry [0];
4007 guint32 value = entry [1];
4008 guint32 next = entry [entry_size - 1];
4012 p = amodule->blob + key;
4015 amodule_lock (amodule);
4016 if (!amodule->method_ref_to_method)
4017 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
4018 m = (MonoMethod *)g_hash_table_lookup (amodule->method_ref_to_method, p);
4019 amodule_unlock (amodule);
4021 m = decode_resolve_method_ref_with_target (amodule, method, p, &p, &error);
4022 mono_error_cleanup (&error); /* FIXME don't swallow the error */
4024 * Can't catche runtime invoke wrappers since it would break
4025 * the check in decode_method_ref_with_target ().
4027 if (m && m->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
4028 amodule_lock (amodule);
4029 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
4030 amodule_unlock (amodule);
4039 * Special case: wrappers of shared generic methods.
4040 * This is needed because of the way mini_get_shared_method () works,
4041 * we could end up with multiple copies of the same wrapper.
4043 if (m && method->wrapper_type && method->wrapper_type == m->wrapper_type &&
4044 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
4045 MonoMethod *w1 = mono_marshal_method_from_wrapper (method);
4046 MonoMethod *w2 = mono_marshal_method_from_wrapper (m);
4048 if ((w1 == w2) || (w1->is_inflated && ((MonoMethodInflated *)w1)->declaring == w2)) {
4053 if (m && method->wrapper_type && method->wrapper_type == m->wrapper_type &&
4054 method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
4055 WrapperInfo *info1 = mono_marshal_get_wrapper_info (method);
4056 WrapperInfo *info2 = mono_marshal_get_wrapper_info (m);
4058 if (info1 && info2 && info1->subtype == info2->subtype && method->klass == m->klass) {
4064 /* Methods decoded needlessly */
4066 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
4071 entry = &table [next * entry_size];
4080 add_module_cb (gpointer key, gpointer value, gpointer user_data)
4082 g_ptr_array_add ((GPtrArray*)user_data, value);
4088 * Try finding METHOD in the extra_method table in all AOT images.
4089 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
4090 * module where the method was found.
4093 find_aot_method (MonoMethod *method, MonoAotModule **out_amodule)
4098 guint32 hash = mono_aot_method_hash (method);
4100 /* Try the method's module first */
4101 *out_amodule = (MonoAotModule *)method->klass->image->aot_module;
4102 index = find_aot_method_in_amodule ((MonoAotModule *)method->klass->image->aot_module, method, hash);
4103 if (index != 0xffffff)
4107 * Try all other modules.
4108 * This is needed because generic instances klass->image points to the image
4109 * containing the generic definition, but the native code is generated to the
4110 * AOT image which contains the reference.
4113 /* Make a copy to avoid doing the search inside the aot lock */
4114 modules = g_ptr_array_new ();
4116 g_hash_table_foreach (aot_modules, add_module_cb, modules);
4120 for (i = 0; i < modules->len; ++i) {
4121 MonoAotModule *amodule = (MonoAotModule *)g_ptr_array_index (modules, i);
4123 if (amodule != method->klass->image->aot_module)
4124 index = find_aot_method_in_amodule (amodule, method, hash);
4125 if (index != 0xffffff) {
4126 *out_amodule = amodule;
4131 g_ptr_array_free (modules, TRUE);
4137 mono_aot_find_method_index (MonoMethod *method)
4139 MonoAotModule *out_amodule;
4140 return find_aot_method (method, &out_amodule);
4144 init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context, MonoError *error)
4146 MonoDomain *domain = mono_domain_get ();
4148 MonoClass *klass_to_run_ctor = NULL;
4149 gboolean from_plt = method == NULL;
4150 int pindex, n_patches;
4152 MonoJitInfo *jinfo = NULL;
4153 guint8 *code, *info;
4155 mono_error_init (error);
4157 code = (guint8 *)amodule->methods [method_index];
4158 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
4162 //does the method's class has a cctor?
4163 if (decode_value (p, &p) == 1)
4164 klass_to_run_ctor = decode_klass_ref (amodule, p, &p, error);
4168 //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
4170 klass_to_run_ctor = method->klass;
4172 n_patches = decode_value (p, &p);
4175 MonoJumpInfo *patches;
4180 mp = mono_mempool_new ();
4182 if ((gpointer)code >= amodule->info.jit_code_start && (gpointer)code <= amodule->info.jit_code_end) {
4187 got = amodule->llvm_got;
4191 patches = load_patch_info (amodule, mp, n_patches, llvm, &got_slots, p, &p);
4192 if (patches == NULL) {
4193 mono_mempool_destroy (mp);
4197 for (pindex = 0; pindex < n_patches; ++pindex) {
4198 MonoJumpInfo *ji = &patches [pindex];
4202 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
4203 * been initialized by load_method () for a static cctor before the cctor has
4204 * finished executing (#23242).
4206 if (!got [got_slots [pindex]] || ji->type == MONO_PATCH_INFO_SFLDA) {
4207 /* In llvm-only made, we might encounter shared methods */
4208 if (mono_llvm_only && ji->type == MONO_PATCH_INFO_METHOD && mono_method_check_context_used (ji->data.method)) {
4210 ji->data.method = mono_class_inflate_generic_method_checked (ji->data.method, context, error);
4211 if (!mono_error_ok (error)) {
4213 mono_mempool_destroy (mp);
4217 /* This cannot be resolved in mono_resolve_patch_target () */
4218 if (ji->type == MONO_PATCH_INFO_AOT_JIT_INFO) {
4219 // FIXME: Lookup using the index
4220 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4221 ji->type = MONO_PATCH_INFO_ABS;
4222 ji->data.target = jinfo;
4224 addr = mono_resolve_patch_target (method, domain, code, ji, TRUE, error);
4225 if (!mono_error_ok (error)) {
4227 mono_mempool_destroy (mp);
4230 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4231 addr = mono_create_ftnptr (domain, addr);
4232 mono_memory_barrier ();
4233 got [got_slots [pindex]] = addr;
4234 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4235 register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
4237 ji->type = MONO_PATCH_INFO_NONE;
4242 mono_mempool_destroy (mp);
4245 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
4246 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4248 gboolean inited_ok = TRUE;
4250 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, init_class), error);
4251 else if (from_plt && klass_to_run_ctor && !klass_to_run_ctor->generic_container)
4252 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, klass_to_run_ctor), error);
4266 init_llvmonly_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context)
4271 res = init_method (amodule, method_index, method, init_class, context, &error);
4272 if (!is_ok (&error)) {
4273 MonoException *ex = mono_error_convert_to_exception (&error);
4274 /* Its okay to raise in llvmonly mode */
4276 mono_llvm_throw_exception ((MonoObject*)ex);
4281 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
4283 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4285 init_llvmonly_method (amodule, method_index, NULL, NULL, NULL);
4289 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this_obj)
4291 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4293 MonoGenericContext *context;
4297 g_assert (this_obj);
4298 klass = this_obj->vtable->klass;
4300 amodule_lock (amodule);
4301 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4302 amodule_unlock (amodule);
4305 context = mono_method_get_context (method);
4308 init_llvmonly_method (amodule, method_index, NULL, klass, context);
4312 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
4314 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4315 MonoGenericContext context = { NULL, NULL };
4316 MonoClass *klass = rgctx->class_vtable->klass;
4318 if (klass->generic_class)
4319 context.class_inst = klass->generic_class->context.class_inst;
4320 else if (klass->generic_container)
4321 context.class_inst = klass->generic_container->context.class_inst;
4322 context.method_inst = rgctx->method_inst;
4324 init_llvmonly_method (amodule, method_index, NULL, rgctx->class_vtable->klass, &context);
4328 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
4330 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4332 MonoGenericContext *context;
4335 klass = vtable->klass;
4337 amodule_lock (amodule);
4338 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4339 amodule_unlock (amodule);
4342 context = mono_method_get_context (method);
4345 init_llvmonly_method (amodule, method_index, NULL, klass, context);
4349 * mono_aot_get_method_checked:
4351 * Return a pointer to the AOTed native code for METHOD if it can be found,
4353 * On platforms with function pointers, this doesn't return a function pointer.
4356 mono_aot_get_method_checked (MonoDomain *domain, MonoMethod *method, MonoError *error)
4358 MonoClass *klass = method->klass;
4359 MonoMethod *orig_method = method;
4360 guint32 method_index;
4361 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
4363 gboolean cache_result = FALSE;
4364 MonoError inner_error;
4366 mono_error_init (error);
4368 if (domain != mono_get_root_domain ())
4369 /* Non shared AOT code can't be used in other appdomains */
4372 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
4373 /* This cannot be AOTed during startup, so do it now */
4374 if (!mscorlib_aot_loaded) {
4375 mscorlib_aot_loaded = TRUE;
4376 load_aot_module (klass->image->assembly, NULL);
4377 amodule = (MonoAotModule *)klass->image->aot_module;
4384 if (amodule->out_of_date)
4387 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4388 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4389 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4390 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
4394 * Use the original method instead of its invoke-with-check wrapper.
4395 * This is not a problem when using full-aot, since it doesn't support
4398 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4399 return mono_aot_get_method_checked (domain, mono_marshal_method_from_wrapper (method), error);
4401 g_assert (klass->inited);
4403 /* Find method index */
4404 method_index = 0xffffff;
4405 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)) {
4406 MonoMethod *orig_method = method;
4408 * For generic methods, we store the fully shared instance in place of the
4411 method = mono_method_get_declaring_generic_method (method);
4412 method_index = mono_metadata_token_index (method->token) - 1;
4414 if (mono_llvm_only) {
4415 /* Needed by mono_aot_init_gshared_method_this () */
4416 /* orig_method is a random instance but it is enough to make init_method () work */
4417 amodule_lock (amodule);
4418 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), orig_method);
4419 amodule_unlock (amodule);
4421 } else if (method->is_inflated || !method->token) {
4422 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4423 amodule_lock (amodule);
4424 code = (guint8 *)g_hash_table_lookup (amodule->method_to_code, method);
4425 amodule_unlock (amodule);
4429 cache_result = TRUE;
4430 method_index = find_aot_method (method, &amodule);
4432 * Special case the ICollection<T> wrappers for arrays, as they cannot
4433 * be statically enumerated, and each wrapper ends up calling the same
4436 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
4437 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4439 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4440 mono_error_cleanup (&inner_error);
4446 * Special case Array.GetGenericValueImpl which is a generic icall.
4447 * Generic sharing currently can't handle it, but the icall returns data using
4448 * an out parameter, so the managed-to-native wrappers can share the same code.
4450 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
4452 MonoGenericContext ctx;
4453 MonoType *args [16];
4455 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
4456 /* Avoid recursion */
4459 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
4462 memset (&ctx, 0, sizeof (ctx));
4463 args [0] = &mono_defaults.object_class->byval_arg;
4464 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4466 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, error), TRUE, TRUE);
4468 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error)); /* FIXME don't swallow the error */
4471 * Get the code for the <object> instantiation which should be emitted into
4472 * the mscorlib aot image by the AOT compiler.
4474 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4475 mono_error_cleanup (&inner_error);
4480 /* Same for CompareExchange<T> and Exchange<T> */
4481 /* Same for Volatile.Read<T>/Write<T> */
4482 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
4483 ((!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]))) ||
4484 (!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)))) ||
4485 (!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])))))) {
4487 MonoGenericContext ctx;
4488 MonoType *args [16];
4489 gpointer iter = NULL;
4491 while ((m = mono_class_get_methods (method->klass, &iter))) {
4492 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
4497 memset (&ctx, 0, sizeof (ctx));
4498 args [0] = &mono_defaults.object_class->byval_arg;
4499 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4501 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, error), TRUE, TRUE);
4503 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error)); /* FIXME don't swallow the error */
4505 /* Avoid recursion */
4510 * Get the code for the <object> instantiation which should be emitted into
4511 * the mscorlib aot image by the AOT compiler.
4513 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4514 mono_error_cleanup (&inner_error);
4519 /* For ARRAY_ACCESSOR wrappers with reference types, use the <object> instantiation saved in corlib */
4520 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4521 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4523 if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
4524 MonoMethod *array_method = info->d.array_accessor.method;
4525 if (MONO_TYPE_IS_REFERENCE (&array_method->klass->element_class->byval_arg)) {
4526 MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, 1);
4527 MonoMethod *m = mono_class_get_method_from_name (obj_array_class, array_method->name, mono_method_signature (array_method)->param_count);
4530 m = mono_marshal_get_array_accessor_wrapper (m);
4532 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4533 mono_error_cleanup (&inner_error);
4541 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
4542 /* Partial sharing */
4545 shared = mini_get_shared_method (method);
4546 method_index = find_aot_method (shared, &amodule);
4547 if (method_index != 0xffffff)
4551 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4554 /* Use the all-vt shared method since this is what was AOTed */
4555 shared = mini_get_shared_method_full (method, TRUE, TRUE);
4556 method_index = find_aot_method (shared, &amodule);
4557 if (method_index != 0xffffff)
4558 method = mini_get_shared_method_full (method, TRUE, FALSE);
4561 if (method_index == 0xffffff) {
4562 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
4565 full_name = mono_method_full_name (method, TRUE);
4566 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
4572 if (method_index == 0xffffff)
4575 /* Needed by find_jit_info */
4576 amodule_lock (amodule);
4577 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
4578 amodule_unlock (amodule);
4581 method_index = mono_metadata_token_index (method->token) - 1;
4584 code = (guint8 *)load_method (domain, amodule, klass->image, method, method->token, method_index, error);
4587 if (code && cache_result) {
4588 amodule_lock (amodule);
4589 g_hash_table_insert (amodule->method_to_code, orig_method, code);
4590 amodule_unlock (amodule);
4596 * mono_aot_get_method:
4598 * Return a pointer to the AOTed native code for METHOD if it can be found,
4600 * On platforms with function pointers, this doesn't return a function pointer.
4603 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
4607 gpointer res = mono_aot_get_method_checked (domain, method, &error);
4608 /* This is external only, so its ok to raise here */
4609 mono_error_raise_exception (&error); /* OK to throw, external only without a good alternative */
4614 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4618 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token, MonoError *error)
4620 MonoAotModule *aot_module = (MonoAotModule *)image->aot_module;
4624 mono_error_init (error);
4629 method_index = mono_metadata_token_index (token) - 1;
4631 res = load_method (domain, aot_module, image, NULL, token, method_index, error);
4638 } IsGotEntryUserData;
4641 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4643 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4644 MonoAotModule *aot_module = (MonoAotModule*)value;
4646 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4651 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4653 IsGotEntryUserData user_data;
4658 user_data.addr = addr;
4659 user_data.res = FALSE;
4661 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4664 return user_data.res;
4669 MonoAotModule *module;
4670 } FindAotModuleUserData;
4673 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4675 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4676 MonoAotModule *aot_module = (MonoAotModule*)value;
4678 if (amodule_contains_code_addr (aot_module, data->addr))
4679 data->module = aot_module;
4682 static inline MonoAotModule*
4683 find_aot_module (guint8 *code)
4685 FindAotModuleUserData user_data;
4690 /* Reading these need no locking */
4691 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4694 user_data.addr = code;
4695 user_data.module = NULL;
4698 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4701 return user_data.module;
4705 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4707 MonoAotModule *amodule;
4710 * Since AOT code is only used in the root domain,
4711 * mono_domain_get () != mono_get_root_domain () means the calling method
4712 * is AppDomain:InvokeInDomain, so this is the same check as in
4713 * mono_method_same_domain () but without loading the metadata for the method.
4715 if (mono_domain_get () == mono_get_root_domain ()) {
4717 amodule = find_aot_module (code);
4721 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4726 * mono_aot_plt_resolve:
4728 * This function is called by the entries in the PLT to resolve the actual method that
4729 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4730 * Returns NULL if the something cannot be loaded.
4733 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
4735 #ifdef MONO_ARCH_AOT_SUPPORTED
4736 guint8 *p, *target, *plt_entry;
4738 MonoAotModule *module = (MonoAotModule*)aot_module;
4739 gboolean res, no_ftnptr = FALSE;
4741 gboolean using_gsharedvt = FALSE;
4743 mono_error_init (error);
4745 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4747 p = &module->blob [plt_info_offset];
4749 ji.type = (MonoJumpInfoType)decode_value (p, &p);
4751 mp = mono_mempool_new ();
4752 res = decode_patch (module, mp, &ji, p, &p);
4755 mono_mempool_destroy (mp);
4759 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4760 using_gsharedvt = TRUE;
4764 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4765 * it would create a trampoline, and we don't need that.
4766 * We could do this only if the method does not need the special handling
4767 * in mono_magic_trampoline ().
4769 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) &&
4770 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4771 target = (guint8 *)mono_jit_compile_method (ji.data.method, error);
4772 if (!mono_error_ok (error)) {
4773 mono_mempool_destroy (mp);
4778 target = (guint8 *)mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE, error);
4779 if (!mono_error_ok (error)) {
4780 mono_mempool_destroy (mp);
4786 * The trampoline expects us to return a function descriptor on platforms which use
4787 * it, but resolve_patch_target returns a direct function pointer for some type of
4788 * patches, so have to translate between the two.
4789 * FIXME: Clean this up, but how ?
4791 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) {
4792 /* These should already have a function descriptor */
4793 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4794 /* Our function descriptors have a 0 environment, gcc created ones don't */
4795 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4796 g_assert (((gpointer*)target) [2] == 0);
4799 } else if (!no_ftnptr) {
4800 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4801 g_assert (((gpointer*)target) [2] != 0);
4803 target = (guint8 *)mono_create_ftnptr (mono_domain_get (), target);
4806 mono_mempool_destroy (mp);
4808 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4809 plt_entry = mono_aot_get_plt_entry (code);
4810 g_assert (plt_entry);
4811 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4815 g_assert_not_reached ();
4823 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4824 * method in the module is loaded to avoid committing memory by writing to it.
4825 * LOCKING: Assumes the AMODULE lock is held.
4828 init_plt (MonoAotModule *amodule)
4833 if (amodule->plt_inited)
4836 if (amodule->info.plt_size <= 1) {
4837 amodule->plt_inited = TRUE;
4841 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4844 * Initialize the PLT entries in the GOT to point to the default targets.
4847 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4848 for (i = 1; i < amodule->info.plt_size; ++i)
4849 /* All the default entries point to the AOT trampoline */
4850 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4852 amodule->plt_inited = TRUE;
4856 * mono_aot_get_plt_entry:
4858 * Return the address of the PLT entry called by the code at CODE if exists.
4861 mono_aot_get_plt_entry (guint8 *code)
4863 MonoAotModule *amodule = find_aot_module (code);
4864 guint8 *target = NULL;
4870 if (is_thumb_code (amodule, code - 4))
4871 return mono_arm_get_thumb_plt_entry (code);
4874 #ifdef MONO_ARCH_AOT_SUPPORTED
4875 target = mono_arch_get_call_target (code);
4877 g_assert_not_reached ();
4881 while (target != NULL) {
4882 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4885 // Add 4 since mono_arch_get_call_target assumes we're passing
4886 // the instruction after the actual branch instruction.
4887 target = mono_arch_get_call_target (target + 4);
4892 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4900 * mono_aot_get_plt_info_offset:
4902 * Return the PLT info offset belonging to the plt entry called by CODE.
4905 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4907 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4909 g_assert (plt_entry);
4911 /* The offset is embedded inside the code after the plt entry */
4912 #ifdef MONO_ARCH_AOT_SUPPORTED
4913 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4915 g_assert_not_reached ();
4921 mono_create_ftnptr_malloc (guint8 *code)
4923 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4924 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4926 ftnptr->code = code;
4937 * mono_aot_register_jit_icall:
4939 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4940 * be called from mono_arch_init () during startup.
4943 mono_aot_register_jit_icall (const char *name, gpointer addr)
4945 /* No need for locking */
4946 if (!aot_jit_icall_hash)
4947 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
4948 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
4952 * load_function_full:
4954 * Load the function named NAME from the aot image.
4957 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
4961 int n_patches, pindex;
4964 guint32 info_offset;
4968 symbol = g_strdup_printf ("%s", name);
4969 find_amodule_symbol (amodule, symbol, (gpointer *)&code);
4972 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
4974 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
4978 symbol = g_strdup_printf ("%s_p", name);
4979 find_amodule_symbol (amodule, symbol, (gpointer *)&p);
4982 /* Nothing to patch */
4985 info_offset = *(guint32*)p;
4987 MonoTrampInfo *tinfo;
4988 guint32 code_size, uw_info_len, uw_offset;
4990 /* Construct a MonoTrampInfo from the data in the AOT image */
4992 p += sizeof (guint32);
4993 code_size = *(guint32*)p;
4994 p += sizeof (guint32);
4995 uw_offset = *(guint32*)p;
4996 uw_info = amodule->unwind_info + uw_offset;
4997 uw_info_len = decode_value (uw_info, &uw_info);
4999 tinfo = g_new0 (MonoTrampInfo, 1);
5000 tinfo->code = (guint8 *)code;
5001 tinfo->code_size = code_size;
5002 tinfo->uw_info_len = uw_info_len;
5004 tinfo->uw_info = uw_info;
5009 p = amodule->blob + info_offset;
5011 /* Similar to mono_aot_load_method () */
5013 n_patches = decode_value (p, &p);
5016 MonoJumpInfo *patches;
5019 mp = mono_mempool_new ();
5021 patches = load_patch_info (amodule, mp, n_patches, FALSE, &got_slots, p, &p);
5024 for (pindex = 0; pindex < n_patches; ++pindex) {
5025 MonoJumpInfo *ji = &patches [pindex];
5029 if (amodule->got [got_slots [pindex]])
5033 * When this code is executed, the runtime may not be initalized yet, so
5034 * resolve the patch info by hand.
5036 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
5037 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
5038 target = mono_get_lmf_addr;
5039 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint_noraise")) {
5040 target = mono_thread_force_interruption_checkpoint_noraise;
5041 } else if (!strcmp (ji->data.name, "mono_interruption_checkpoint_from_trampoline")) {
5042 target = mono_interruption_checkpoint_from_trampoline;
5043 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
5044 target = mono_exception_from_token;
5045 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
5046 target = mono_get_throw_exception ();
5047 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
5048 MonoTrampolineType tramp_type2 = (MonoTrampolineType)atoi (ji->data.name + strlen ("trampoline_func_"));
5049 target = (gpointer)mono_get_trampoline_func (tramp_type2);
5050 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
5051 /* atoll is needed because the the offset is unsigned */
5055 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
5056 g_assert (res == 1);
5057 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5058 target = mono_create_ftnptr_malloc ((guint8 *)target);
5059 } else if (!strcmp (ji->data.name, "debugger_agent_single_step_from_context")) {
5060 target = debugger_agent_single_step_from_context;
5061 } else if (!strcmp (ji->data.name, "debugger_agent_breakpoint_from_context")) {
5062 target = debugger_agent_breakpoint_from_context;
5063 } else if (!strcmp (ji->data.name, "throw_exception_addr")) {
5064 target = mono_get_throw_exception_addr ();
5065 } else if (strstr (ji->data.name, "generic_trampoline_")) {
5066 target = mono_aot_get_trampoline (ji->data.name);
5067 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
5068 /* Registered by mono_arch_init () */
5069 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
5071 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
5072 g_assert_not_reached ();
5076 /* Hopefully the code doesn't have patches which need method or
5079 target = mono_resolve_patch_target (NULL, NULL, (guint8 *)code, ji, FALSE, &error);
5080 mono_error_assert_ok (&error);
5084 amodule->got [got_slots [pindex]] = target;
5089 mono_mempool_destroy (mp);
5096 load_function (MonoAotModule *amodule, const char *name)
5098 return load_function_full (amodule, name, NULL);
5101 static MonoAotModule*
5102 get_mscorlib_aot_module (void)
5105 MonoAotModule *amodule;
5107 image = mono_defaults.corlib;
5109 amodule = (MonoAotModule *)image->aot_module;
5111 amodule = mscorlib_aot_module;
5117 no_trampolines (void)
5119 g_assert_not_reached ();
5123 * Return the trampoline identified by NAME from the mscorlib AOT file.
5124 * On ppc64, this returns a function descriptor.
5127 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5129 MonoAotModule *amodule = get_mscorlib_aot_module ();
5131 if (mono_llvm_only) {
5133 return no_trampolines;
5136 return mono_create_ftnptr_malloc ((guint8 *)load_function_full (amodule, name, out_tinfo));
5140 mono_aot_get_trampoline (const char *name)
5142 MonoTrampInfo *out_tinfo;
5145 code = mono_aot_get_trampoline_full (name, &out_tinfo);
5146 mono_tramp_info_register (out_tinfo, NULL);
5152 read_unwind_info (MonoAotModule *amodule, MonoTrampInfo *info, const char *symbol_name)
5154 gpointer symbol_addr;
5155 guint32 uw_offset, uw_info_len;
5158 find_amodule_symbol (amodule, symbol_name, &symbol_addr);
5163 uw_offset = *(guint32*)symbol_addr;
5164 uw_info = amodule->unwind_info + uw_offset;
5165 uw_info_len = decode_value (uw_info, &uw_info);
5167 info->uw_info_len = uw_info_len;
5169 info->uw_info = uw_info;
5171 info->uw_info = NULL;
5173 /* If successful return the address of the following data */
5174 return (guint32*)symbol_addr + 1;
5178 #include <mach/mach.h>
5180 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
5183 read_page_trampoline_uwinfo (MonoTrampInfo *info, int tramp_type, gboolean is_generic)
5185 char symbol_name [128];
5187 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5188 sprintf (symbol_name, "specific_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5189 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5190 sprintf (symbol_name, "rgctx_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5191 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
5192 sprintf (symbol_name, "imt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5193 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5194 sprintf (symbol_name, "gsharedvt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5196 g_assert_not_reached ();
5198 read_unwind_info (mono_defaults.corlib->aot_module, info, symbol_name);
5201 static unsigned char*
5202 get_new_trampoline_from_page (int tramp_type)
5204 MonoAotModule *amodule;
5206 TrampolinePage *page;
5209 vm_address_t addr, taddr;
5211 vm_prot_t prot, max_prot;
5212 int psize, specific_trampoline_size;
5213 unsigned char *code;
5215 specific_trampoline_size = 2 * sizeof (gpointer);
5217 mono_aot_page_lock ();
5218 page = trampoline_pages [tramp_type];
5219 if (page && page->trampolines < page->trampolines_end) {
5220 code = page->trampolines;
5221 page->trampolines += specific_trampoline_size;
5222 mono_aot_page_unlock ();
5225 mono_aot_page_unlock ();
5226 /* the trampoline template page is in the mscorlib module */
5227 image = mono_defaults.corlib;
5230 psize = MONO_AOT_TRAMP_PAGE_SIZE;
5232 amodule = image->aot_module;
5235 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5236 tpage = load_function (amodule, "specific_trampolines_page");
5237 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5238 tpage = load_function (amodule, "rgctx_trampolines_page");
5239 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
5240 tpage = load_function (amodule, "imt_trampolines_page");
5241 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5242 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
5244 g_error ("Incorrect tramp type for trampolines page");
5246 /*g_warning ("loaded trampolines page at %x", tpage);*/
5248 /* avoid the unlikely case of looping forever */
5251 while (page == NULL && count-- > 0) {
5252 MonoTrampInfo *gen_info, *sp_info;
5255 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
5256 * while the second will contain the trampolines.
5259 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
5260 } while (ret == KERN_ABORTED);
5261 if (ret != KERN_SUCCESS) {
5262 g_error ("Cannot allocate memory for trampolines: %d", ret);
5265 /*g_warning ("allocated trampoline double page at %x", addr);*/
5266 /* replace the second page with a remapped trampoline page */
5267 taddr = addr + psize;
5268 vm_deallocate (mach_task_self (), taddr, psize);
5269 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
5270 if (ret != KERN_SUCCESS) {
5271 /* someone else got the page, try again */
5272 vm_deallocate (mach_task_self (), addr, psize);
5275 /*g_warning ("remapped trampoline page at %x", taddr);*/
5277 mono_aot_page_lock ();
5278 page = trampoline_pages [tramp_type];
5279 /* some other thread already allocated, so use that to avoid wasting memory */
5280 if (page && page->trampolines < page->trampolines_end) {
5281 code = page->trampolines;
5282 page->trampolines += specific_trampoline_size;
5283 mono_aot_page_unlock ();
5284 vm_deallocate (mach_task_self (), addr, psize);
5285 vm_deallocate (mach_task_self (), taddr, psize);
5288 page = (TrampolinePage*)addr;
5289 page->next = trampoline_pages [tramp_type];
5290 trampoline_pages [tramp_type] = page;
5291 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
5292 page->trampolines_end = (void*)(taddr + psize - 64);
5293 code = page->trampolines;
5294 page->trampolines += specific_trampoline_size;
5295 mono_aot_page_unlock ();
5297 /* Register the generic part at the beggining of the trampoline page */
5298 gen_info = mono_tramp_info_create (NULL, (guint8*)taddr, amodule->info.tramp_page_code_offsets [tramp_type], NULL, NULL);
5299 read_page_trampoline_uwinfo (gen_info, tramp_type, TRUE);
5300 mono_tramp_info_register (gen_info, NULL);
5303 * Registering each specific trampoline produces a lot of
5304 * MonoJitInfo structures. Jump trampolines are also registered
5307 if (tramp_type != MONO_AOT_TRAMP_SPECIFIC) {
5308 /* Register the rest of the page as a single trampoline */
5309 sp_info = mono_tramp_info_create (NULL, code, page->trampolines_end - code, NULL, NULL);
5310 read_page_trampoline_uwinfo (sp_info, tramp_type, FALSE);
5311 mono_tramp_info_register (sp_info, NULL);
5315 g_error ("Cannot allocate more trampoline pages: %d", ret);
5320 static unsigned char*
5321 get_new_trampoline_from_page (int tramp_type)
5323 g_error ("Page trampolines not supported.");
5330 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
5335 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
5337 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5340 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5346 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
5351 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
5353 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5356 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5362 get_new_imt_trampoline_from_page (gpointer arg)
5367 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT_THUNK);
5369 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5371 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
5377 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
5382 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
5384 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5387 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5391 /* Return a given kind of trampoline */
5392 /* FIXME set unwind info for these trampolines */
5394 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
5397 MonoAotModule *amodule = get_mscorlib_aot_module ();
5398 int index, tramp_size;
5400 /* Currently, we keep all trampolines in the mscorlib AOT image */
5401 image = mono_defaults.corlib;
5403 *out_amodule = amodule;
5408 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5410 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5412 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
5413 g_error ("Ran out of trampolines of type %d in '%s' (limit %d)%s\n",
5414 tramp_type, image ? image->name : "mscorlib", amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
5416 index = amodule->trampoline_index [tramp_type] ++;
5420 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
5422 tramp_size = amodule->info.trampoline_size [tramp_type];
5425 *out_tramp_size = tramp_size;
5427 return amodule->trampolines [tramp_type] + (index * tramp_size);
5431 no_specific_trampoline (void)
5433 g_assert_not_reached ();
5437 * Return a specific trampoline from the AOT file.
5440 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5442 MonoAotModule *amodule;
5443 guint32 got_offset, tramp_size;
5444 guint8 *code, *tramp;
5445 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
5446 static gboolean inited;
5447 static guint32 num_trampolines;
5449 if (mono_llvm_only) {
5451 return no_specific_trampoline;
5458 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
5467 if (!generic_trampolines [tramp_type]) {
5470 symbol = mono_get_generic_trampoline_name (tramp_type);
5471 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
5475 tramp = (guint8 *)generic_trampolines [tramp_type];
5478 if (USE_PAGE_TRAMPOLINES) {
5479 code = (guint8 *)get_new_specific_trampoline_from_page (tramp, arg1);
5482 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
5484 amodule->got [got_offset] = tramp;
5485 amodule->got [got_offset + 1] = arg1;
5489 *code_len = tramp_size;
5495 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5497 MonoAotModule *amodule;
5501 if (USE_PAGE_TRAMPOLINES) {
5502 code = (guint8 *)get_new_rgctx_trampoline_from_page (addr, ctx);
5504 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
5506 amodule->got [got_offset] = ctx;
5507 amodule->got [got_offset + 1] = addr;
5510 /* The caller expects an ftnptr */
5511 return mono_create_ftnptr (mono_domain_get (), code);
5515 mono_aot_get_unbox_trampoline (MonoMethod *method)
5517 guint32 method_index = mono_metadata_token_index (method->token) - 1;
5518 MonoAotModule *amodule;
5520 guint32 *ut, *ut_end, *entry;
5521 int low, high, entry_index = 0;
5522 gpointer symbol_addr;
5523 MonoTrampInfo *tinfo;
5525 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
5526 method_index = find_aot_method (method, &amodule);
5527 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
5528 MonoMethod *shared = mini_get_shared_method_full (method, FALSE, FALSE);
5529 method_index = find_aot_method (shared, &amodule);
5531 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, TRUE)) {
5532 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
5533 method_index = find_aot_method (shared, &amodule);
5535 g_assert (method_index != 0xffffff);
5537 amodule = (MonoAotModule *)method->klass->image->aot_module;
5541 if (amodule->info.llvm_get_unbox_tramp) {
5542 gpointer (*get_tramp) (int) = (gpointer (*)(int))amodule->info.llvm_get_unbox_tramp;
5543 code = get_tramp (method_index);
5549 ut = amodule->unbox_trampolines;
5550 ut_end = amodule->unbox_trampolines_end;
5552 /* Do a binary search in the sorted table */
5555 high = (ut_end - ut);
5556 while (low < high) {
5557 entry_index = (low + high) / 2;
5558 entry = &ut [entry_index];
5559 if (entry [0] < method_index) {
5560 low = entry_index + 1;
5561 } else if (entry [0] > method_index) {
5568 code = get_call_table_entry (amodule->unbox_trampoline_addresses, entry_index);
5571 tinfo = mono_tramp_info_create (NULL, (guint8 *)code, 0, NULL, NULL);
5573 symbol_addr = read_unwind_info (amodule, tinfo, "unbox_trampoline_p");
5575 mono_tramp_info_free (tinfo);
5579 tinfo->code_size = *(guint32*)symbol_addr;
5580 mono_tramp_info_register (tinfo, NULL);
5582 /* The caller expects an ftnptr */
5583 return mono_create_ftnptr (mono_domain_get (), code);
5587 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5591 MonoAotModule *amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
5592 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
5593 static int count = 0;
5596 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
5597 static gpointer addr;
5601 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5604 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
5605 info = (void **)mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
5606 info [0] = GUINT_TO_POINTER (slot);
5607 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5608 code = mono_aot_get_static_rgctx_trampoline (info, addr);
5609 return mono_create_ftnptr (mono_domain_get (), code);
5612 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
5613 code = load_function ((MonoAotModule *)mono_defaults.corlib->aot_module, symbol);
5615 /* The caller expects an ftnptr */
5616 return mono_create_ftnptr (mono_domain_get (), code);
5622 g_assert_not_reached ();
5626 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5631 int i, index, real_count;
5632 MonoAotModule *amodule;
5635 return no_imt_thunk;
5638 for (i = 0; i < count; ++i) {
5639 MonoIMTCheckItem *item = imt_entries [i];
5641 if (item->is_equals)
5645 /* Save the entries into an array */
5646 buf = (void **)mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
5648 for (i = 0; i < count; ++i) {
5649 MonoIMTCheckItem *item = imt_entries [i];
5651 if (!item->is_equals)
5654 g_assert (item->key);
5656 buf [(index * 2)] = item->key;
5657 if (item->has_target_code) {
5658 gpointer *p = (gpointer *)mono_domain_alloc (domain, sizeof (gpointer));
5659 *p = item->value.target_code;
5660 buf [(index * 2) + 1] = p;
5662 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
5666 buf [(index * 2)] = NULL;
5667 buf [(index * 2) + 1] = fail_tramp;
5669 if (USE_PAGE_TRAMPOLINES) {
5670 code = get_new_imt_trampoline_from_page (buf);
5672 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK, 1, &amodule, &got_offset, NULL);
5674 amodule->got [got_offset] = buf;
5681 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5683 MonoAotModule *amodule;
5687 if (USE_PAGE_TRAMPOLINES) {
5688 code = (guint8 *)get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
5690 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
5692 amodule->got [got_offset] = arg;
5693 amodule->got [got_offset + 1] = addr;
5696 /* The caller expects an ftnptr */
5697 return mono_create_ftnptr (mono_domain_get (), code);
5701 * mono_aot_set_make_unreadable:
5703 * Set whenever to make all mmaped memory unreadable. In conjuction with a
5704 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
5707 mono_aot_set_make_unreadable (gboolean unreadable)
5711 make_unreadable = unreadable;
5713 if (make_unreadable && !inited) {
5714 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
5719 MonoAotModule *module;
5724 find_map (gpointer key, gpointer value, gpointer user_data)
5726 MonoAotModule *module = (MonoAotModule*)value;
5727 FindMapUserData *data = (FindMapUserData*)user_data;
5730 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
5731 data->module = module;
5734 static MonoAotModule*
5735 find_module_for_addr (void *ptr)
5737 FindMapUserData data;
5739 if (!make_unreadable)
5743 data.ptr = (guint8*)ptr;
5746 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
5753 * mono_aot_is_pagefault:
5755 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
5756 * within memory allocated by this module.
5759 mono_aot_is_pagefault (void *ptr)
5761 if (!make_unreadable)
5765 * Not signal safe, but SIGSEGV's are synchronous, and
5766 * this is only turned on by a MONO_DEBUG option.
5768 return find_module_for_addr (ptr) != NULL;
5772 * mono_aot_handle_pagefault:
5774 * Handle a pagefault caused by an unreadable page by making it readable again.
5777 mono_aot_handle_pagefault (void *ptr)
5779 #ifndef PLATFORM_WIN32
5780 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5784 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5785 g_assert (res == 0);
5796 mono_aot_init (void)
5801 mono_aot_cleanup (void)
5806 mono_aot_find_method_index (MonoMethod *method)
5808 g_assert_not_reached ();
5813 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
5818 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this)
5823 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
5828 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
5833 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5839 mono_aot_get_method_checked (MonoDomain *domain,
5840 MonoMethod *method, MonoError *error);
5842 mono_error_init (error);
5847 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5853 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5859 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5865 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5871 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token, MonoError *error)
5873 mono_error_init (error);
5878 mono_aot_get_plt_entry (guint8 *code)
5884 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
5890 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5895 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot, MonoError *error)
5897 mono_error_init (error);
5903 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5905 g_assert_not_reached ();
5911 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5913 g_assert_not_reached ();
5918 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5920 g_assert_not_reached ();
5925 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5927 g_assert_not_reached ();
5932 mono_aot_get_trampoline (const char *name)
5934 g_assert_not_reached ();
5939 mono_aot_get_unbox_trampoline (MonoMethod *method)
5941 g_assert_not_reached ();
5946 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5948 g_assert_not_reached ();
5953 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5955 g_assert_not_reached ();
5960 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5962 g_assert_not_reached ();
5967 mono_aot_set_make_unreadable (gboolean unreadable)
5972 mono_aot_is_pagefault (void *ptr)
5978 mono_aot_handle_pagefault (void *ptr)
5983 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
5985 g_assert_not_reached ();
5990 mono_aot_register_jit_icall (const char *name, gpointer addr)