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>
61 #include "seq-points.h"
63 #include "debugger-agent.h"
64 #include "aot-compiler.h"
65 #include "jit-icalls.h"
70 #define ENABLE_AOT_CACHE
73 /* Number of got entries shared between the JIT and LLVM GOT */
74 #define N_COMMON_GOT_ENTRIES 10
76 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
77 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
78 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
85 typedef struct MonoAotModule {
87 /* Pointer to the Global Offset Table */
91 GHashTable *name_cache;
92 GHashTable *extra_methods;
93 /* Maps methods to their code */
94 GHashTable *method_to_code;
95 /* Maps pointers into the method info to the methods themselves */
96 GHashTable *method_ref_to_method;
97 MonoAssemblyName *image_names;
99 MonoAssembly *assembly;
100 MonoImage **image_table;
101 guint32 image_table_len;
102 gboolean out_of_date;
104 gboolean got_initializing;
107 guint8 *jit_code_start;
108 guint8 *jit_code_end;
109 guint8 *llvm_code_start;
110 guint8 *llvm_code_end;
114 /* Maps method indexes to their code */
116 /* Sorted array of method addresses */
117 gpointer *sorted_methods;
118 /* Method indexes for each method in sorted_methods */
119 int *sorted_method_indexes;
120 /* The length of the two tables above */
121 int sorted_methods_len;
122 guint32 *method_info_offsets;
123 guint32 *ex_info_offsets;
124 guint32 *class_info_offsets;
125 guint32 *got_info_offsets;
126 guint32 *llvm_got_info_offsets;
127 guint32 *methods_loaded;
128 guint16 *class_name_table;
129 guint32 *extra_method_table;
130 guint32 *extra_method_info_offsets;
131 guint32 *unbox_trampolines;
132 guint32 *unbox_trampolines_end;
133 guint32 *unbox_trampoline_addresses;
136 /* Points to the mono EH data created by LLVM */
137 guint8 *mono_eh_frame;
139 /* Points to the data tables if MONO_AOT_FILE_FLAG_SEPARATE_DATA is set */
140 gpointer tables [MONO_AOT_TABLE_NUM];
141 /* Points to the trampolines */
142 guint8 *trampolines [MONO_AOT_TRAMP_NUM];
143 /* The first unused trampoline of each kind */
144 guint32 trampoline_index [MONO_AOT_TRAMP_NUM];
146 gboolean use_page_trampolines;
148 MonoAotFileInfo info;
153 JitInfoMap *async_jit_info_table;
159 unsigned char *trampolines;
160 unsigned char *trampolines_end;
163 static GHashTable *aot_modules;
164 #define mono_aot_lock() mono_os_mutex_lock (&aot_mutex)
165 #define mono_aot_unlock() mono_os_mutex_unlock (&aot_mutex)
166 static mono_mutex_t aot_mutex;
169 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
170 * AOT modules registered by mono_aot_register_module ().
172 static GHashTable *static_aot_modules;
175 * Maps MonoJitInfo* to the aot module they belong to, this can be different
176 * from ji->method->klass->image's aot module for generic instances.
178 static GHashTable *ji_to_amodule;
181 * Whenever to AOT compile loaded assemblies on demand and store them in
184 static gboolean enable_aot_cache = FALSE;
186 static gboolean mscorlib_aot_loaded;
189 static gint32 mono_last_aot_method = -1;
191 static gboolean make_unreadable = FALSE;
192 static guint32 name_table_accesses = 0;
193 static guint32 n_pagefaults = 0;
195 /* Used to speed-up find_aot_module () */
196 static gsize aot_code_low_addr = (gssize)-1;
197 static gsize aot_code_high_addr = 0;
200 static gint32 async_jit_info_size;
202 static GHashTable *aot_jit_icall_hash;
205 #define USE_PAGE_TRAMPOLINES ((MonoAotModule*)mono_defaults.corlib->aot_module)->use_page_trampolines
207 #define USE_PAGE_TRAMPOLINES 0
210 #define mono_aot_page_lock() mono_os_mutex_lock (&aot_page_mutex)
211 #define mono_aot_page_unlock() mono_os_mutex_unlock (&aot_page_mutex)
212 static mono_mutex_t aot_page_mutex;
214 static MonoAotModule *mscorlib_aot_module;
216 /* Embedding API hooks to load the AOT data for AOT images compiled with MONO_AOT_FILE_FLAG_SEPARATE_DATA */
217 static MonoLoadAotDataFunc aot_data_load_func;
218 static MonoFreeAotDataFunc aot_data_free_func;
219 static gpointer aot_data_func_user_data;
222 init_plt (MonoAotModule *info);
225 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end);
228 init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context, MonoError *error);
231 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets);
234 amodule_lock (MonoAotModule *amodule)
236 mono_os_mutex_lock (&amodule->mutex);
240 amodule_unlock (MonoAotModule *amodule)
242 mono_os_mutex_unlock (&amodule->mutex);
248 * Load one of the images referenced by AMODULE. Returns NULL if the image is not
249 * found, and sets @error for what happened
252 load_image (MonoAotModule *amodule, int index, MonoError *error)
254 MonoAssembly *assembly;
255 MonoImageOpenStatus status;
257 g_assert (index < amodule->image_table_len);
259 mono_error_init (error);
261 if (amodule->image_table [index])
262 return amodule->image_table [index];
263 if (amodule->out_of_date) {
264 mono_error_set_bad_image_name (error, amodule->aot_name, "Image out of date");
268 assembly = mono_assembly_load (&amodule->image_names [index], amodule->assembly->basedir, &status);
270 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);
271 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);
272 amodule->out_of_date = TRUE;
276 if (strcmp (assembly->image->guid, amodule->image_guids [index])) {
277 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);
278 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);
279 amodule->out_of_date = TRUE;
283 amodule->image_table [index] = assembly->image;
284 return assembly->image;
288 decode_value (guint8 *ptr, guint8 **rptr)
293 if ((b & 0x80) == 0){
296 } else if ((b & 0x40) == 0){
297 len = ((b & 0x3f) << 8 | ptr [1]);
299 } else if (b != 0xff) {
300 len = ((b & 0x1f) << 24) |
307 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
313 //printf ("DECODE: %d.\n", len);
318 * mono_aot_get_offset:
320 * Decode an offset table emitted by emit_offset_table (), returning the INDEXth
324 mono_aot_get_offset (guint32 *table, int index)
326 int i, group, ngroups, index_entry_size;
327 int start_offset, offset, group_size;
328 guint8 *data_start, *p;
329 guint32 *index32 = NULL;
330 guint16 *index16 = NULL;
332 /* noffsets = table [0]; */
333 group_size = table [1];
335 index_entry_size = table [3];
336 group = index / group_size;
338 if (index_entry_size == 2) {
339 index16 = (guint16*)&table [4];
340 data_start = (guint8*)&index16 [ngroups];
341 p = data_start + index16 [group];
343 index32 = (guint32*)&table [4];
344 data_start = (guint8*)&index32 [ngroups];
345 p = data_start + index32 [group];
348 /* offset will contain the value of offsets [group * group_size] */
349 offset = start_offset = decode_value (p, &p);
350 for (i = group * group_size + 1; i <= index; ++i) {
351 offset += decode_value (p, &p);
354 //printf ("Offset lookup: %d -> %d, start=%d, p=%d\n", index, offset, start_offset, table [3 + group]);
360 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error);
363 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error);
366 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error);
368 static MonoGenericInst*
369 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
372 MonoType **type_argv;
373 MonoGenericInst *inst;
376 mono_error_init (error);
377 type_argc = decode_value (p, &p);
378 type_argv = g_new0 (MonoType*, type_argc);
380 for (i = 0; i < type_argc; ++i) {
381 MonoClass *pclass = decode_klass_ref (module, p, &p, error);
386 type_argv [i] = &pclass->byval_arg;
389 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
398 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf, MonoError *error)
403 mono_error_init (error);
406 argc = decode_value (p, &p);
409 ctx->class_inst = decode_generic_inst (module, p, &p, error);
410 if (!ctx->class_inst)
414 argc = decode_value (p, &p);
417 ctx->method_inst = decode_generic_inst (module, p, &p, error);
418 if (!ctx->method_inst)
427 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
430 MonoClass *klass = NULL, *eklass;
431 guint32 token, rank, idx;
435 mono_error_init (error);
436 reftype = decode_value (p, &p);
439 mono_error_set_bad_image_name (error, module->aot_name, "Decoding a null class ref");
444 case MONO_AOT_TYPEREF_TYPEDEF_INDEX:
445 idx = decode_value (p, &p);
446 image = load_image (module, 0, error);
449 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, error);
451 case MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE:
452 idx = decode_value (p, &p);
453 image = load_image (module, decode_value (p, &p), error);
456 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, error);
458 case MONO_AOT_TYPEREF_TYPESPEC_TOKEN:
459 token = decode_value (p, &p);
460 image = module->assembly->image;
462 mono_error_set_bad_image_name (error, module->aot_name, "No image associated with the aot module");
465 klass = mono_class_get_checked (image, token, error);
467 case MONO_AOT_TYPEREF_GINST: {
469 MonoGenericContext ctx;
472 gclass = decode_klass_ref (module, p, &p, error);
475 g_assert (gclass->generic_container);
477 memset (&ctx, 0, sizeof (ctx));
478 ctx.class_inst = decode_generic_inst (module, p, &p, error);
481 type = mono_class_inflate_generic_type_checked (&gclass->byval_arg, &ctx, error);
484 klass = mono_class_from_mono_type (type);
485 mono_metadata_free_type (type);
488 case MONO_AOT_TYPEREF_VAR: {
490 MonoGenericContainer *container = NULL;
491 gboolean has_constraint = decode_value (p, &p);
493 if (has_constraint) {
494 MonoClass *par_klass;
495 MonoType *gshared_constraint;
497 gshared_constraint = decode_type (module, p, &p, error);
498 if (!gshared_constraint)
501 par_klass = decode_klass_ref (module, p, &p, error);
505 t = mini_get_shared_gparam (&par_klass->byval_arg, gshared_constraint);
506 klass = mono_class_from_mono_type (t);
508 int type = decode_value (p, &p);
509 int num = decode_value (p, &p);
510 gboolean is_not_anonymous = decode_value (p, &p);
512 if (is_not_anonymous) {
513 gboolean is_method = decode_value (p, &p);
516 MonoMethod *method_def;
517 g_assert (type == MONO_TYPE_MVAR);
518 method_def = decode_resolve_method_ref (module, p, &p, error);
522 container = mono_method_get_generic_container (method_def);
524 MonoClass *class_def;
525 g_assert (type == MONO_TYPE_VAR);
526 class_def = decode_klass_ref (module, p, &p, error);
530 container = class_def->generic_container;
533 // We didn't decode is_method, so we have to infer it from type enum.
534 container = get_anonymous_container_for_image (module->assembly->image, type == MONO_TYPE_MVAR);
537 t = g_new0 (MonoType, 1);
538 t->type = (MonoTypeEnum)type;
539 if (is_not_anonymous) {
540 t->data.generic_param = mono_generic_container_get_param (container, num);
543 MonoGenericParam *par = (MonoGenericParam*)mono_image_alloc0 (module->assembly->image, sizeof (MonoGenericParamFull));
544 par->owner = container;
546 t->data.generic_param = par;
547 ((MonoGenericParamFull*)par)->info.name = make_generic_name_string (module->assembly->image, num);
549 // FIXME: Maybe use types directly to avoid
550 // the overhead of creating MonoClass-es
551 klass = mono_class_from_mono_type (t);
557 case MONO_AOT_TYPEREF_ARRAY:
559 rank = decode_value (p, &p);
560 eklass = decode_klass_ref (module, p, &p, error);
563 klass = mono_array_class_get (eklass, rank);
565 case MONO_AOT_TYPEREF_PTR: {
568 t = decode_type (module, p, &p, error);
571 klass = mono_class_from_mono_type (t);
575 case MONO_AOT_TYPEREF_BLOB_INDEX: {
576 guint32 offset = decode_value (p, &p);
579 p2 = module->blob + offset;
580 klass = decode_klass_ref (module, p2, &p2, error);
584 mono_error_set_bad_image_name (error, module->aot_name, "Invalid klass reftype %d", reftype);
587 //printf ("BLA: %s\n", mono_type_full_name (&klass->byval_arg));
592 static MonoClassField*
593 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
596 MonoClass *klass = decode_klass_ref (module, buf, &buf, &error);
601 mono_error_cleanup (&error); /* FIXME don't swallow the error */
605 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
609 return mono_class_get_field (klass, token);
613 * Parse a MonoType encoded by encode_type () in aot-compiler.c. Return malloc-ed
617 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
622 t = (MonoType *)g_malloc0 (sizeof (MonoType));
623 mono_error_init (error);
626 if (*p == MONO_TYPE_PINNED) {
629 } else if (*p == MONO_TYPE_BYREF) {
637 t->type = (MonoTypeEnum)*p;
642 case MONO_TYPE_BOOLEAN:
656 case MONO_TYPE_STRING:
657 case MONO_TYPE_OBJECT:
658 case MONO_TYPE_TYPEDBYREF:
660 case MONO_TYPE_VALUETYPE:
661 case MONO_TYPE_CLASS:
662 t->data.klass = decode_klass_ref (module, p, &p, error);
666 case MONO_TYPE_SZARRAY:
667 t->data.klass = decode_klass_ref (module, p, &p, error);
673 t->data.type = decode_type (module, p, &p, error);
677 case MONO_TYPE_GENERICINST: {
679 MonoGenericContext ctx;
683 gclass = decode_klass_ref (module, p, &p, error);
686 g_assert (gclass->generic_container);
688 memset (&ctx, 0, sizeof (ctx));
689 ctx.class_inst = decode_generic_inst (module, p, &p, error);
692 type = mono_class_inflate_generic_type_checked (&gclass->byval_arg, &ctx, error);
695 klass = mono_class_from_mono_type (type);
696 t->data.generic_class = klass->generic_class;
699 case MONO_TYPE_ARRAY: {
700 MonoArrayType *array;
703 // FIXME: memory management
704 array = g_new0 (MonoArrayType, 1);
705 array->eklass = decode_klass_ref (module, p, &p, error);
708 array->rank = decode_value (p, &p);
709 array->numsizes = decode_value (p, &p);
712 array->sizes = (int *)g_malloc0 (sizeof (int) * array->numsizes);
713 for (i = 0; i < array->numsizes; ++i)
714 array->sizes [i] = decode_value (p, &p);
716 array->numlobounds = decode_value (p, &p);
717 if (array->numlobounds)
718 array->lobounds = (int *)g_malloc0 (sizeof (int) * array->numlobounds);
719 for (i = 0; i < array->numlobounds; ++i)
720 array->lobounds [i] = decode_value (p, &p);
721 t->data.array = array;
725 case MONO_TYPE_MVAR: {
726 MonoClass *klass = decode_klass_ref (module, p, &p, error);
729 t->data.generic_param = klass->byval_arg.data.generic_param;
733 mono_error_set_bad_image_name (error, module->aot_name, "Invalid encoded type %d", t->type);
745 // FIXME: Error handling, memory management
747 static MonoMethodSignature*
748 decode_signature_with_target (MonoAotModule *module, MonoMethodSignature *target, guint8 *buf, guint8 **endbuf)
751 MonoMethodSignature *sig;
753 int i, gen_param_count = 0, param_count, call_conv;
755 gboolean hasthis, explicit_this, has_gen_params;
759 has_gen_params = (flags & 0x10) != 0;
760 hasthis = (flags & 0x20) != 0;
761 explicit_this = (flags & 0x40) != 0;
762 call_conv = flags & 0x0F;
765 gen_param_count = decode_value (p, &p);
766 param_count = decode_value (p, &p);
767 if (target && param_count != target->param_count)
769 sig = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + param_count * sizeof (MonoType *));
770 sig->param_count = param_count;
771 sig->sentinelpos = -1;
772 sig->hasthis = hasthis;
773 sig->explicit_this = explicit_this;
774 sig->call_convention = call_conv;
775 sig->generic_param_count = gen_param_count;
776 sig->ret = decode_type (module, p, &p, &error);
779 for (i = 0; i < param_count; ++i) {
780 if (*p == MONO_TYPE_SENTINEL) {
781 g_assert (sig->call_convention == MONO_CALL_VARARG);
782 sig->sentinelpos = i;
785 sig->params [i] = decode_type (module, p, &p, &error);
786 if (!sig->params [i])
790 if (sig->call_convention == MONO_CALL_VARARG && sig->sentinelpos == -1)
791 sig->sentinelpos = sig->param_count;
797 mono_error_cleanup (&error); /* FIXME don't swallow the error */
802 static MonoMethodSignature*
803 decode_signature (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
805 return decode_signature_with_target (module, NULL, buf, endbuf);
809 sig_matches_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
811 MonoMethodSignature *sig;
815 sig = decode_signature_with_target (module, mono_method_signature (target), p, &p);
816 res = sig && mono_metadata_signature_equal (mono_method_signature (target), sig);
822 /* Stores information returned by decode_method_ref () */
827 gboolean no_aot_trampoline;
831 * decode_method_ref_with_target:
833 * Decode a method reference, storing the image/token into a MethodRef structure.
834 * This avoids loading metadata for the method if the caller does not need it. If the method has
835 * no token, then it is loaded from metadata and ref->method is set to the method instance.
836 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method
837 * couldn't resolve to TARGET, and return FALSE.
838 * There are some kinds of method references which only support a non-null TARGET.
839 * This means that its not possible to decode this into a method, only to check
840 * that the method reference matches a given method. This is normally not a problem
841 * as these wrappers only occur in the extra_methods table, where we already have
842 * a method we want to lookup.
844 * If there was a decoding error, we return FALSE and set @error
847 decode_method_ref_with_target (MonoAotModule *module, MethodRef *ref, MonoMethod *target, guint8 *buf, guint8 **endbuf, MonoError *error)
849 guint32 image_index, value;
850 MonoImage *image = NULL;
853 memset (ref, 0, sizeof (MethodRef));
854 mono_error_init (error);
856 value = decode_value (p, &p);
857 image_index = value >> 24;
859 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
860 ref->no_aot_trampoline = TRUE;
861 value = decode_value (p, &p);
862 image_index = value >> 24;
865 if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
866 if (target && target->wrapper_type) {
871 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
873 guint32 wrapper_type;
875 wrapper_type = decode_value (p, &p);
877 if (target && target->wrapper_type != wrapper_type)
881 image = mono_defaults.corlib;
883 switch (wrapper_type) {
884 #ifndef DISABLE_REMOTING
885 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
886 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
889 mono_class_init (m->klass);
893 ref->method = mono_marshal_get_remoting_invoke_with_check (m);
896 case MONO_WRAPPER_PROXY_ISINST: {
897 MonoClass *klass = decode_klass_ref (module, p, &p, error);
900 ref->method = mono_marshal_get_proxy_cancast (klass);
903 case MONO_WRAPPER_LDFLD:
904 case MONO_WRAPPER_LDFLDA:
905 case MONO_WRAPPER_STFLD:
906 case MONO_WRAPPER_ISINST: {
907 MonoClass *klass = decode_klass_ref (module, p, &p, error);
910 if (wrapper_type == MONO_WRAPPER_LDFLD)
911 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
912 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
913 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
914 else if (wrapper_type == MONO_WRAPPER_STFLD)
915 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
916 else if (wrapper_type == MONO_WRAPPER_ISINST)
917 ref->method = mono_marshal_get_isinst (klass);
919 mono_error_set_bad_image_name (error, module->aot_name, "Unknown AOT wrapper type %d", wrapper_type);
924 case MONO_WRAPPER_LDFLD_REMOTE:
925 ref->method = mono_marshal_get_ldfld_remote_wrapper (NULL);
927 case MONO_WRAPPER_STFLD_REMOTE:
928 ref->method = mono_marshal_get_stfld_remote_wrapper (NULL);
931 case MONO_WRAPPER_ALLOC: {
932 int atype = decode_value (p, &p);
934 ref->method = mono_gc_get_managed_allocator_by_type (atype, !!(mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS));
936 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");
941 case MONO_WRAPPER_WRITE_BARRIER: {
942 ref->method = mono_gc_get_write_barrier ();
945 case MONO_WRAPPER_STELEMREF: {
946 int subtype = decode_value (p, &p);
948 if (subtype == WRAPPER_SUBTYPE_NONE) {
949 ref->method = mono_marshal_get_stelemref ();
950 } else if (subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) {
953 kind = decode_value (p, &p);
955 /* Can't decode this */
958 if (target->wrapper_type == MONO_WRAPPER_STELEMREF) {
959 info = mono_marshal_get_wrapper_info (target);
962 if (info->subtype == subtype && info->d.virtual_stelemref.kind == kind)
963 ref->method = target;
970 mono_error_set_bad_image_name (error, module->aot_name, "Invalid STELEMREF subtype %d", subtype);
975 case MONO_WRAPPER_SYNCHRONIZED: {
976 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
979 ref->method = mono_marshal_get_synchronized_wrapper (m);
982 case MONO_WRAPPER_UNKNOWN: {
983 int subtype = decode_value (p, &p);
985 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) {
986 MonoClass *klass = decode_klass_ref (module, p, &p, error);
992 if (klass != target->klass)
995 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE) {
996 if (strcmp (target->name, "PtrToStructure"))
998 ref->method = mono_marshal_get_ptr_to_struct (klass);
1000 if (strcmp (target->name, "StructureToPtr"))
1002 ref->method = mono_marshal_get_struct_to_ptr (klass);
1004 } else if (subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) {
1005 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1008 ref->method = mono_marshal_get_synchronized_inner_wrapper (m);
1009 } else if (subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
1010 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1013 ref->method = mono_marshal_get_array_accessor_wrapper (m);
1014 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN) {
1015 ref->method = mono_marshal_get_gsharedvt_in_wrapper ();
1016 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
1017 ref->method = mono_marshal_get_gsharedvt_out_wrapper ();
1018 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) {
1019 MonoMethodSignature *sig = decode_signature (module, p, &p);
1022 ref->method = mini_get_gsharedvt_in_sig_wrapper (sig);
1023 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG) {
1024 MonoMethodSignature *sig = decode_signature (module, p, &p);
1027 ref->method = mini_get_gsharedvt_out_sig_wrapper (sig);
1029 mono_error_set_bad_image_name (error, module->aot_name, "Invalid UNKNOWN wrapper subtype %d", subtype);
1034 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
1035 int subtype = decode_value (p, &p);
1037 if (subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
1038 int rank = decode_value (p, &p);
1039 int elem_size = decode_value (p, &p);
1041 ref->method = mono_marshal_get_array_address (rank, elem_size);
1042 } else if (subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
1045 m = decode_resolve_method_ref (module, p, &p, error);
1051 g_assert (target->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED);
1053 info = mono_marshal_get_wrapper_info (target);
1054 if (info && info->subtype == subtype && info->d.string_ctor.method == m)
1055 ref->method = target;
1061 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
1063 int subtype = decode_value (p, &p);
1066 if (subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1071 if (strcmp (target->name, name) != 0)
1073 ref->method = target;
1075 m = decode_resolve_method_ref (module, p, &p, error);
1079 /* This should only happen when looking for an extra method */
1082 if (mono_marshal_method_from_wrapper (target) == m)
1083 ref->method = target;
1089 case MONO_WRAPPER_CASTCLASS: {
1090 int subtype = decode_value (p, &p);
1092 if (subtype == WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE)
1093 ref->method = mono_marshal_get_castclass_with_cache ();
1094 else if (subtype == WRAPPER_SUBTYPE_ISINST_WITH_CACHE)
1095 ref->method = mono_marshal_get_isinst_with_cache ();
1097 mono_error_set_bad_image_name (error, module->aot_name, "Invalid CASTCLASS wrapper subtype %d", subtype);
1102 case MONO_WRAPPER_RUNTIME_INVOKE: {
1103 int subtype = decode_value (p, &p);
1108 if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC) {
1109 if (strcmp (target->name, "runtime_invoke_dynamic") != 0)
1111 ref->method = target;
1112 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT) {
1113 /* Direct wrapper */
1114 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1117 ref->method = mono_marshal_get_runtime_invoke (m, FALSE);
1118 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) {
1119 /* Virtual direct wrapper */
1120 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1123 ref->method = mono_marshal_get_runtime_invoke (m, TRUE);
1125 MonoMethodSignature *sig;
1127 sig = decode_signature_with_target (module, NULL, p, &p);
1128 info = mono_marshal_get_wrapper_info (target);
1131 if (info->subtype != subtype)
1133 g_assert (info->d.runtime_invoke.sig);
1134 if (mono_metadata_signature_equal (sig, info->d.runtime_invoke.sig))
1135 ref->method = target;
1141 case MONO_WRAPPER_DELEGATE_INVOKE:
1142 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1143 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
1144 gboolean is_inflated = decode_value (p, &p);
1145 WrapperSubtype subtype;
1149 MonoMethod *invoke, *wrapper;
1151 klass = decode_klass_ref (module, p, &p, error);
1155 switch (wrapper_type) {
1156 case MONO_WRAPPER_DELEGATE_INVOKE:
1157 invoke = mono_get_delegate_invoke (klass);
1158 wrapper = mono_marshal_get_delegate_invoke (invoke, NULL);
1160 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1161 invoke = mono_get_delegate_begin_invoke (klass);
1162 wrapper = mono_marshal_get_delegate_begin_invoke (invoke);
1164 case MONO_WRAPPER_DELEGATE_END_INVOKE:
1165 invoke = mono_get_delegate_end_invoke (klass);
1166 wrapper = mono_marshal_get_delegate_end_invoke (invoke);
1169 g_assert_not_reached ();
1174 * Due to the way mini_get_shared_method () works, we could end up with
1175 * multiple copies of the same wrapper.
1177 if (wrapper->klass != target->klass)
1179 ref->method = target;
1181 ref->method = wrapper;
1185 * These wrappers are associated with a signature, not with a method.
1186 * Since we can't decode them into methods, they need a target method.
1191 if (wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1192 subtype = (WrapperSubtype)decode_value (p, &p);
1193 info = mono_marshal_get_wrapper_info (target);
1195 if (info->subtype != subtype)
1198 if (subtype != WRAPPER_SUBTYPE_NONE)
1202 if (sig_matches_target (module, target, p, &p))
1203 ref->method = target;
1209 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
1213 m = decode_resolve_method_ref (module, p, &p, error);
1216 klass = decode_klass_ref (module, p, &p, error);
1219 ref->method = mono_marshal_get_managed_wrapper (m, klass, 0);
1223 g_assert_not_reached ();
1225 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1226 image_index = decode_value (p, &p);
1227 ref->token = decode_value (p, &p);
1229 image = load_image (module, image_index, error);
1232 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1234 MonoGenericContext ctx;
1237 * These methods do not have a token which resolves them, so we
1238 * resolve them immediately.
1240 klass = decode_klass_ref (module, p, &p, error);
1244 if (target && target->klass != klass)
1247 image_index = decode_value (p, &p);
1248 ref->token = decode_value (p, &p);
1250 image = load_image (module, image_index, error);
1254 ref->method = mono_get_method_checked (image, ref->token, NULL, NULL, error);
1259 memset (&ctx, 0, sizeof (ctx));
1261 if (FALSE && klass->generic_class) {
1262 ctx.class_inst = klass->generic_class->context.class_inst;
1263 ctx.method_inst = NULL;
1265 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, error);
1270 memset (&ctx, 0, sizeof (ctx));
1272 if (!decode_generic_context (module, &ctx, p, &p, error))
1275 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, error);
1279 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1283 klass = decode_klass_ref (module, p, &p, error);
1286 method_type = decode_value (p, &p);
1287 switch (method_type) {
1289 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1292 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1295 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1298 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1301 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1304 mono_error_set_bad_image_name (error, module->aot_name, "Invalid METHODREF_ARRAY method type %d", method_type);
1308 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1309 image_index = decode_value (p, &p);
1310 value = decode_value (p, &p);
1313 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1315 image = load_image (module, image_index, error);
1328 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf, MonoError *error)
1330 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf, error);
1334 * decode_resolve_method_ref_with_target:
1336 * Similar to decode_method_ref, but resolve and return the method itself.
1339 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf, MonoError *error)
1343 mono_error_init (error);
1345 if (!decode_method_ref_with_target (module, &ref, target, buf, endbuf, error))
1350 mono_error_set_bad_image_name (error, module->aot_name, "No image found for methodref with target");
1353 return mono_get_method_checked (ref.image, ref.token, NULL, NULL, error);
1357 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
1359 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf, error);
1362 #ifdef ENABLE_AOT_CACHE
1368 * - Add options for controlling the cache size
1369 * - Handle full cache by deleting old assemblies lru style
1370 * - Maybe add a threshold after an assembly is AOT compiled
1371 * - Add options for enabling this for specific main assemblies
1374 /* The cache directory */
1375 static char *cache_dir;
1377 /* The number of assemblies AOTed in this run */
1378 static int cache_count;
1380 /* Whenever to AOT in-process */
1381 static gboolean in_process;
1384 collect_assemblies (gpointer data, gpointer user_data)
1386 MonoAssembly *ass = data;
1387 GSList **l = user_data;
1389 *l = g_slist_prepend (*l, ass);
1392 #define SHA1_DIGEST_LENGTH 20
1395 * get_aot_config_hash:
1397 * Return a hash for all the version information an AOT module depends on.
1399 static G_GNUC_UNUSED char*
1400 get_aot_config_hash (MonoAssembly *assembly)
1403 GSList *l, *assembly_list = NULL;
1406 guint8 digest [SHA1_DIGEST_LENGTH];
1409 build_info = mono_get_runtime_build_info ();
1411 s = g_string_new (build_info);
1413 mono_assembly_foreach (collect_assemblies, &assembly_list);
1416 * The assembly list includes the current assembly as well, no need
1419 for (l = assembly_list; l; l = l->next) {
1420 MonoAssembly *ass = l->data;
1422 g_string_append (s, "_");
1423 g_string_append (s, ass->aname.name);
1424 g_string_append (s, "_");
1425 g_string_append (s, ass->image->guid);
1428 for (i = 0; i < s->len; ++i) {
1429 if (!isalnum (s->str [i]) && s->str [i] != '-')
1433 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1435 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1436 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1437 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1439 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1441 g_string_free (s, TRUE);
1447 aot_cache_init (void)
1451 enable_aot_cache = TRUE;
1456 * aot_cache_load_module:
1458 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1461 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1463 MonoAotCacheConfig *config;
1465 char *fname, *tmp2, *aot_options, *failure_fname;
1477 if (image_is_dynamic (assembly->image))
1480 /* Check in the list of assemblies enabled for aot caching */
1481 config = mono_get_aot_cache_config ();
1485 MonoDomain *domain = mono_domain_get ();
1486 MonoAssembly *entry_assembly = domain->entry_assembly;
1488 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1489 for (l = config->apps; l; l = l->next) {
1492 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1500 for (l = config->assemblies; l; l = l->next) {
1503 if (!strcmp (assembly->aname.name, n))
1513 home = g_get_home_dir ();
1516 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1517 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1518 g_mkdir_with_parents (cache_dir, 0777);
1522 * The same assembly can be used in multiple configurations, i.e. multiple
1523 * versions of the runtime, with multiple versions of dependent assemblies etc.
1524 * To handle this, we compute a version string containing all this information, hash it,
1525 * and use the hash as a filename suffix.
1527 hash = get_aot_config_hash (assembly);
1529 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, MONO_SOLIB_EXT);
1530 fname = g_build_filename (cache_dir, tmp2, NULL);
1534 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1535 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1538 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1542 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1544 * Can't AOT this during startup, so we AOT it when called later from
1545 * mono_aot_get_method ().
1549 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1551 /* Only AOT one assembly per run to avoid slowing down execution too much */
1552 if (cache_count > 0)
1556 /* Check for previous failure */
1557 failure_fname = g_strdup_printf ("%s.failure", fname);
1558 failure_file = fopen (failure_fname, "r");
1560 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1561 g_free (failure_fname);
1564 g_free (failure_fname);
1565 fclose (failure_file);
1568 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1571 * We need to invoke the AOT compiler here. There are multiple approaches:
1572 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1573 * its hard to make the new process load the same set of assemblies.
1574 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1576 * - fork a new process and do the work there.
1579 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1580 /* Maybe due this in another thread ? */
1581 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1583 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1584 failure_fname = g_strdup_printf ("%s.failure", fname);
1585 failure_file = fopen (failure_fname, "a+");
1586 fclose (failure_file);
1587 g_free (failure_fname);
1589 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1593 * - Avoid waiting for the aot process to finish ?
1594 * (less overhead, but multiple processes could aot the same assembly at the same time)
1603 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1604 logfile = fopen (logfile_name, "a+");
1605 g_free (logfile_name);
1607 dup2 (fileno (logfile), 1);
1608 dup2 (fileno (logfile), 2);
1610 aot_options = g_strdup_printf ("outfile=%s", fname);
1611 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1619 waitpid (pid, &exit_status, 0);
1620 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1621 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1623 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1627 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1635 aot_cache_init (void)
1640 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1648 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1652 guint16 *table, *entry;
1655 char *symbol = (char*)name;
1658 symbol = g_strdup_printf ("_%s", name);
1661 /* The first entry points to the hash */
1662 table = (guint16 *)globals [0];
1665 table_size = table [0];
1668 hash = mono_metadata_str_hash (symbol) % table_size;
1670 entry = &table [hash * 2];
1672 /* Search the hash for the index into the globals table */
1674 while (entry [0] != 0) {
1675 guint32 index = entry [0] - 1;
1676 guint32 next = entry [1];
1678 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1680 if (!strcmp (globals [index * 2], symbol)) {
1681 global_index = index;
1686 entry = &table [next * 2];
1692 if (global_index != -1)
1693 *value = globals [global_index * 2 + 1];
1700 char *err = mono_dl_symbol (module, name, value);
1708 find_amodule_symbol (MonoAotModule *amodule, const char *name, gpointer *value)
1710 g_assert (!(amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY));
1712 find_symbol (amodule->sofile, amodule->globals, name, value);
1716 mono_install_load_aot_data_hook (MonoLoadAotDataFunc load_func, MonoFreeAotDataFunc free_func, gpointer user_data)
1718 aot_data_load_func = load_func;
1719 aot_data_free_func = free_func;
1720 aot_data_func_user_data = user_data;
1723 /* Load the separate aot data file for ASSEMBLY */
1725 open_aot_data (MonoAssembly *assembly, MonoAotFileInfo *info, void **ret_handle)
1731 if (aot_data_load_func) {
1732 data = aot_data_load_func (assembly, info->datafile_size, aot_data_func_user_data, ret_handle);
1738 * Use <assembly name>.aotdata as the default implementation if no callback is given
1740 filename = g_strdup_printf ("%s.aotdata", assembly->image->name);
1741 map = mono_file_map_open (filename);
1743 data = mono_file_map (info->datafile_size, MONO_MMAP_READ, mono_file_map_fd (map), 0, ret_handle);
1750 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, guint8 *blob, char **out_msg)
1754 gboolean usable = TRUE;
1755 gboolean full_aot, safepoints;
1756 guint32 excluded_cpu_optimizations;
1758 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1759 msg = g_strdup_printf ("doesn't match assembly");
1763 build_info = mono_get_runtime_build_info ();
1764 if (strlen ((const char *)info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1765 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1768 g_free (build_info);
1770 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1772 if (mono_aot_only && !full_aot) {
1773 msg = g_strdup_printf ("not compiled with --aot=full");
1776 if (!mono_aot_only && full_aot) {
1777 msg = g_strdup_printf ("compiled with --aot=full");
1780 if (mono_llvm_only && !(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1781 msg = g_strdup_printf ("not compiled with --aot=llvmonly");
1785 /* mono_arch_find_imt_method () requires this */
1786 if ((info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && !mono_use_llvm) {
1787 msg = g_strdup_printf ("compiled against LLVM");
1790 if (!(info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && mono_use_llvm) {
1791 msg = g_strdup_printf ("not compiled against LLVM");
1795 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1796 msg = g_strdup_printf ("not compiled for debugging");
1800 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1801 if (info->opts & excluded_cpu_optimizations) {
1802 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1806 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1807 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1811 if (info->gc_name_index != -1) {
1812 char *gc_name = (char*)&blob [info->gc_name_index];
1813 const char *current_gc_name = mono_gc_get_gc_name ();
1815 if (strcmp (current_gc_name, gc_name) != 0) {
1816 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1821 safepoints = info->flags & MONO_AOT_FILE_FLAG_SAFEPOINTS;
1823 if (!safepoints && mono_threads_is_coop_enabled ()) {
1824 msg = g_strdup_printf ("not compiled with safepoints");
1833 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1836 get_call_table_entry (void *table, int index)
1838 #if defined(TARGET_ARM)
1843 ins_addr = (guint32*)table + index;
1845 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1847 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1848 return (char*)ins_addr + (offset * 2) + 8 + 1;
1850 offset = (((int)ins & 0xffffff) << 8) >> 8;
1851 return (char*)ins_addr + (offset * 4) + 8;
1853 #elif defined(TARGET_ARM64)
1854 return mono_arch_get_call_target ((guint8*)table + (index * 4) + 4);
1855 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1856 /* The callee expects an ip which points after the call */
1857 return mono_arch_get_call_target ((guint8*)table + (index * 5) + 5);
1859 g_assert_not_reached ();
1867 * Initialize the shared got entries for AMODULE.
1870 init_amodule_got (MonoAotModule *amodule)
1874 MonoJumpInfo *patches;
1875 guint32 got_offsets [128];
1879 /* These can't be initialized in load_aot_module () */
1880 if (amodule->shared_got [0] || amodule->got_initializing)
1883 amodule->got_initializing = TRUE;
1885 mp = mono_mempool_new ();
1886 npatches = amodule->info.nshared_got_entries;
1887 for (i = 0; i < npatches; ++i)
1888 got_offsets [i] = i;
1889 patches = decode_patches (amodule, mp, npatches, FALSE, got_offsets);
1891 for (i = 0; i < npatches; ++i) {
1894 if (ji->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR && !mono_gc_is_moving ()) {
1895 amodule->shared_got [i] = NULL;
1896 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_START && !mono_gc_is_moving ()) {
1897 amodule->shared_got [i] = NULL;
1898 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_BITS && !mono_gc_is_moving ()) {
1899 amodule->shared_got [i] = NULL;
1900 } else if (ji->type == MONO_PATCH_INFO_IMAGE) {
1901 amodule->shared_got [i] = amodule->assembly->image;
1902 } else if (ji->type == MONO_PATCH_INFO_MSCORLIB_GOT_ADDR) {
1903 if (mono_defaults.corlib) {
1904 MonoAotModule *mscorlib_amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
1906 if (mscorlib_amodule)
1907 amodule->shared_got [i] = mscorlib_amodule->got;
1909 amodule->shared_got [i] = amodule->got;
1911 } else if (ji->type == MONO_PATCH_INFO_AOT_MODULE) {
1912 amodule->shared_got [i] = amodule;
1914 amodule->shared_got [i] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, ji, FALSE, &error);
1915 mono_error_assert_ok (&error);
1920 for (i = 0; i < npatches; ++i)
1921 amodule->got [i] = amodule->shared_got [i];
1923 if (amodule->llvm_got) {
1924 for (i = 0; i < npatches; ++i)
1925 amodule->llvm_got [i] = amodule->shared_got [i];
1928 mono_mempool_destroy (mp);
1932 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1935 MonoAotModule *amodule;
1937 gboolean usable = TRUE;
1938 char *version_symbol = NULL;
1940 gpointer *globals = NULL;
1941 MonoAotFileInfo *info = NULL;
1943 gboolean do_load_image = TRUE;
1944 int align_double, align_int64;
1945 guint8 *aot_data = NULL;
1947 if (mono_compile_aot)
1950 if (assembly->image->aot_module)
1952 * Already loaded. This can happen because the assembly loading code might invoke
1953 * the assembly load hooks multiple times for the same assembly.
1957 if (image_is_dynamic (assembly->image) || assembly->ref_only)
1961 if (static_aot_modules)
1962 info = (MonoAotFileInfo *)g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1970 /* Statically linked AOT module */
1971 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1972 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
1973 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1974 globals = (void **)info->globals;
1978 if (enable_aot_cache)
1979 sofile = aot_cache_load_module (assembly, &aot_name);
1982 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
1984 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1987 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1991 char *basename = g_path_get_basename (assembly->image->name);
1992 aot_name = g_strdup_printf ("%s/mono/aot-cache/%s/%s%s", mono_assembly_getrootdir(), MONO_ARCHITECTURE, basename, MONO_SOLIB_EXT);
1994 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1996 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
2003 if (mono_aot_only && assembly->image->tables [MONO_TABLE_METHOD].rows)
2004 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
2011 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
2012 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
2015 if (version_symbol) {
2016 /* Old file format */
2017 version = atoi (version_symbol);
2020 version = info->version;
2023 if (version != MONO_AOT_FILE_VERSION) {
2024 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
2030 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2031 aot_data = open_aot_data (assembly, info, &handle);
2033 blob = aot_data + info->table_offsets [MONO_AOT_TABLE_BLOB];
2035 blob = (guint8 *)info->blob;
2038 usable = check_usable (assembly, info, blob, &msg);
2042 if (mono_aot_only) {
2043 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", aot_name, msg);
2045 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.\n", aot_name, msg);
2050 mono_dl_close (sofile);
2051 assembly->image->aot_module = NULL;
2056 align_double = MONO_ABI_ALIGNOF (double);
2057 align_int64 = MONO_ABI_ALIGNOF (gint64);
2058 g_assert (info->double_align == align_double);
2059 g_assert (info->long_align == align_int64);
2060 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
2062 amodule = g_new0 (MonoAotModule, 1);
2063 amodule->aot_name = aot_name;
2064 amodule->assembly = assembly;
2066 memcpy (&amodule->info, info, sizeof (*info));
2068 amodule->got = (void **)amodule->info.jit_got;
2069 amodule->llvm_got = (void **)amodule->info.llvm_got;
2070 amodule->globals = globals;
2071 amodule->sofile = sofile;
2072 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
2073 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2074 amodule->shared_got = g_new0 (gpointer, info->nshared_got_entries);
2076 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2077 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
2078 amodule->tables [i] = aot_data + info->table_offsets [i];
2081 mono_os_mutex_init_recursive (&amodule->mutex);
2083 /* Read image table */
2085 guint32 table_len, i;
2088 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA)
2089 table = amodule->tables [MONO_AOT_TABLE_IMAGE_TABLE];
2091 table = (char *)info->image_table;
2094 table_len = *(guint32*)table;
2095 table += sizeof (guint32);
2096 amodule->image_table = g_new0 (MonoImage*, table_len);
2097 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
2098 amodule->image_guids = g_new0 (char*, table_len);
2099 amodule->image_table_len = table_len;
2100 for (i = 0; i < table_len; ++i) {
2101 MonoAssemblyName *aname = &(amodule->image_names [i]);
2103 aname->name = g_strdup (table);
2104 table += strlen (table) + 1;
2105 amodule->image_guids [i] = g_strdup (table);
2106 table += strlen (table) + 1;
2108 aname->culture = g_strdup (table);
2109 table += strlen (table) + 1;
2110 memcpy (aname->public_key_token, table, strlen (table) + 1);
2111 table += strlen (table) + 1;
2113 table = (char *)ALIGN_PTR_TO (table, 8);
2114 aname->flags = *(guint32*)table;
2116 aname->major = *(guint32*)table;
2118 aname->minor = *(guint32*)table;
2120 aname->build = *(guint32*)table;
2122 aname->revision = *(guint32*)table;
2127 amodule->jit_code_start = (guint8 *)info->jit_code_start;
2128 amodule->jit_code_end = (guint8 *)info->jit_code_end;
2129 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2130 amodule->blob = amodule->tables [MONO_AOT_TABLE_BLOB];
2131 amodule->method_info_offsets = amodule->tables [MONO_AOT_TABLE_METHOD_INFO_OFFSETS];
2132 amodule->ex_info_offsets = amodule->tables [MONO_AOT_TABLE_EX_INFO_OFFSETS];
2133 amodule->class_info_offsets = amodule->tables [MONO_AOT_TABLE_CLASS_INFO_OFFSETS];
2134 amodule->class_name_table = amodule->tables [MONO_AOT_TABLE_CLASS_NAME];
2135 amodule->extra_method_table = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_TABLE];
2136 amodule->extra_method_info_offsets = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS];
2137 amodule->got_info_offsets = amodule->tables [MONO_AOT_TABLE_GOT_INFO_OFFSETS];
2138 amodule->llvm_got_info_offsets = amodule->tables [MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS];
2140 amodule->blob = info->blob;
2141 amodule->method_info_offsets = (guint32 *)info->method_info_offsets;
2142 amodule->ex_info_offsets = (guint32 *)info->ex_info_offsets;
2143 amodule->class_info_offsets = (guint32 *)info->class_info_offsets;
2144 amodule->class_name_table = (guint16 *)info->class_name_table;
2145 amodule->extra_method_table = (guint32 *)info->extra_method_table;
2146 amodule->extra_method_info_offsets = (guint32 *)info->extra_method_info_offsets;
2147 amodule->got_info_offsets = info->got_info_offsets;
2148 amodule->llvm_got_info_offsets = info->llvm_got_info_offsets;
2150 amodule->unbox_trampolines = (guint32 *)info->unbox_trampolines;
2151 amodule->unbox_trampolines_end = (guint32 *)info->unbox_trampolines_end;
2152 amodule->unbox_trampoline_addresses = (guint32 *)info->unbox_trampoline_addresses;
2153 amodule->unwind_info = (guint8 *)info->unwind_info;
2154 amodule->mem_begin = amodule->jit_code_start;
2155 amodule->mem_end = (guint8 *)info->mem_end;
2156 amodule->plt = (guint8 *)info->plt;
2157 amodule->plt_end = (guint8 *)info->plt_end;
2158 amodule->mono_eh_frame = (guint8 *)info->mono_eh_frame;
2159 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = (guint8 *)info->specific_trampolines;
2160 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = (guint8 *)info->static_rgctx_trampolines;
2161 amodule->trampolines [MONO_AOT_TRAMP_IMT_THUNK] = (guint8 *)info->imt_thunks;
2162 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = (guint8 *)info->gsharedvt_arg_trampolines;
2164 if (!strcmp (assembly->aname.name, "mscorlib"))
2165 mscorlib_aot_module = amodule;
2167 /* Compute method addresses */
2168 amodule->methods = (void **)g_malloc0 (amodule->info.nmethods * sizeof (gpointer));
2169 for (i = 0; i < amodule->info.nmethods; ++i) {
2172 if (amodule->info.llvm_get_method) {
2173 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2175 addr = get_method (i);
2178 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2179 if (!addr && amodule->info.method_addresses) {
2180 addr = get_call_table_entry (amodule->info.method_addresses, i);
2182 if (addr == amodule->info.method_addresses)
2186 amodule->methods [i] = GINT_TO_POINTER (-1);
2188 amodule->methods [i] = addr;
2191 if (make_unreadable) {
2192 #ifndef TARGET_WIN32
2194 guint8 *page_start, *page_end;
2197 addr = amodule->mem_begin;
2199 len = amodule->mem_end - amodule->mem_begin;
2201 /* Round down in both directions to avoid modifying data which is not ours */
2202 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2203 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
2204 if (page_end > page_start) {
2205 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
2206 g_assert (err == 0);
2211 /* Compute the boundaries of LLVM code */
2212 if (info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM)
2213 compute_llvm_code_range (amodule, &amodule->llvm_code_start, &amodule->llvm_code_end);
2217 if (amodule->jit_code_start) {
2218 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->jit_code_start);
2219 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->jit_code_end);
2221 if (amodule->llvm_code_start) {
2222 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->llvm_code_start);
2223 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->llvm_code_end);
2226 g_hash_table_insert (aot_modules, assembly, amodule);
2229 if (amodule->jit_code_start)
2230 mono_jit_info_add_aot_module (assembly->image, amodule->jit_code_start, amodule->jit_code_end);
2231 if (amodule->llvm_code_start)
2232 mono_jit_info_add_aot_module (assembly->image, amodule->llvm_code_start, amodule->llvm_code_end);
2234 assembly->image->aot_module = amodule;
2236 if (mono_aot_only && !mono_llvm_only) {
2238 find_amodule_symbol (amodule, "specific_trampolines_page", (gpointer *)&code);
2239 amodule->use_page_trampolines = code != NULL;
2240 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2244 * Register the plt region as a single trampoline so we can unwind from this code
2246 mono_tramp_info_register (
2247 mono_tramp_info_create (
2250 amodule->plt_end - amodule->plt,
2252 mono_unwind_get_cie_program ()
2258 * Since we store methoddef and classdef tokens when referring to methods/classes in
2259 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2260 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2261 * non-lazily, since we can't handle out-of-date errors later.
2262 * The cached class info also depends on the exact assemblies.
2264 #if defined(__native_client__)
2265 /* TODO: Don't 'load_image' on mscorlib due to a */
2266 /* recursive loading problem. This should be */
2267 /* removed if mscorlib is loaded from disk. */
2268 if (strncmp(assembly->aname.name, "mscorlib", 8)) {
2269 do_load_image = TRUE;
2271 do_load_image = FALSE;
2274 if (do_load_image) {
2275 for (i = 0; i < amodule->image_table_len; ++i) {
2277 load_image (amodule, i, &error);
2278 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2282 if (amodule->out_of_date) {
2283 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);
2285 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);
2288 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loaded AOT Module for %s.\n", assembly->image->name);
2292 * mono_aot_register_module:
2294 * This should be called by embedding code to register AOT modules statically linked
2295 * into the executable. AOT_INFO should be the value of the
2296 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2299 mono_aot_register_module (gpointer *aot_info)
2303 MonoAotFileInfo *info = (MonoAotFileInfo *)aot_info;
2305 g_assert (info->version == MONO_AOT_FILE_VERSION);
2307 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
2308 globals = (void **)info->globals;
2312 aname = (char *)info->assembly_name;
2314 /* This could be called before startup */
2318 if (!static_aot_modules)
2319 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2321 g_hash_table_insert (static_aot_modules, aname, info);
2328 mono_aot_init (void)
2330 mono_os_mutex_init_recursive (&aot_mutex);
2331 mono_os_mutex_init_recursive (&aot_page_mutex);
2332 aot_modules = g_hash_table_new (NULL, NULL);
2334 #ifndef __native_client__
2335 mono_install_assembly_load_hook (load_aot_module, NULL);
2337 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2339 if (g_getenv ("MONO_LASTAOT"))
2340 mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
2345 mono_aot_cleanup (void)
2347 if (aot_jit_icall_hash)
2348 g_hash_table_destroy (aot_jit_icall_hash);
2350 g_hash_table_destroy (aot_modules);
2354 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2361 info->vtable_size = decode_value (buf, &buf);
2362 if (info->vtable_size == -1)
2365 flags = decode_value (buf, &buf);
2366 info->ghcimpl = (flags >> 0) & 0x1;
2367 info->has_finalize = (flags >> 1) & 0x1;
2368 info->has_cctor = (flags >> 2) & 0x1;
2369 info->has_nested_classes = (flags >> 3) & 0x1;
2370 info->blittable = (flags >> 4) & 0x1;
2371 info->has_references = (flags >> 5) & 0x1;
2372 info->has_static_refs = (flags >> 6) & 0x1;
2373 info->no_special_static_fields = (flags >> 7) & 0x1;
2374 info->is_generic_container = (flags >> 8) & 0x1;
2376 if (info->has_cctor) {
2377 res = decode_method_ref (module, &ref, buf, &buf, &error);
2378 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
2381 info->cctor_token = ref.token;
2383 if (info->has_finalize) {
2384 res = decode_method_ref (module, &ref, buf, &buf, &error);
2385 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
2388 info->finalize_image = ref.image;
2389 info->finalize_token = ref.token;
2392 info->instance_size = decode_value (buf, &buf);
2393 info->class_size = decode_value (buf, &buf);
2394 info->packing_size = decode_value (buf, &buf);
2395 info->min_align = decode_value (buf, &buf);
2403 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2407 MonoClass *klass = vtable->klass;
2408 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2410 MonoCachedClassInfo class_info;
2415 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2418 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2421 err = decode_cached_class_info (amodule, &class_info, p, &p);
2425 for (i = 0; i < slot; ++i) {
2426 decode_method_ref (amodule, &ref, p, &p, &error);
2427 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2430 res = decode_method_ref (amodule, &ref, p, &p, &error);
2431 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2434 if (ref.no_aot_trampoline)
2437 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2440 return mono_aot_get_method_from_token (domain, ref.image, ref.token);
2444 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2446 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2450 if (klass->rank || !amodule)
2453 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2455 err = decode_cached_class_info (amodule, res, p, &p);
2463 * mono_aot_get_class_from_name:
2465 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2466 * using a cache stored in the AOT file.
2467 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2469 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2473 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2475 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
2476 guint16 *table, *entry;
2479 char full_name_buf [1024];
2481 const char *name2, *name_space2;
2483 guint32 cols [MONO_TYPEDEF_SIZE];
2484 GHashTable *nspace_table;
2486 if (!amodule || !amodule->class_name_table)
2489 amodule_lock (amodule);
2493 /* First look in the cache */
2494 if (!amodule->name_cache)
2495 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2496 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2498 *klass = (MonoClass *)g_hash_table_lookup (nspace_table, name);
2500 amodule_unlock (amodule);
2505 table_size = amodule->class_name_table [0];
2506 table = amodule->class_name_table + 1;
2508 if (name_space [0] == '\0')
2509 full_name = g_strdup_printf ("%s", name);
2511 if (strlen (name_space) + strlen (name) < 1000) {
2512 sprintf (full_name_buf, "%s.%s", name_space, name);
2513 full_name = full_name_buf;
2515 full_name = g_strdup_printf ("%s.%s", name_space, name);
2518 hash = mono_metadata_str_hash (full_name) % table_size;
2519 if (full_name != full_name_buf)
2522 entry = &table [hash * 2];
2524 if (entry [0] != 0) {
2525 t = &image->tables [MONO_TABLE_TYPEDEF];
2528 guint32 index = entry [0];
2529 guint32 next = entry [1];
2530 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2532 name_table_accesses ++;
2534 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2536 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2537 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2539 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2541 amodule_unlock (amodule);
2542 *klass = mono_class_get_checked (image, token, &error);
2543 if (!mono_error_ok (&error))
2544 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2548 amodule_lock (amodule);
2549 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2550 if (!nspace_table) {
2551 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2552 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2554 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2555 amodule_unlock (amodule);
2561 entry = &table [next * 2];
2568 amodule_unlock (amodule);
2573 /* Compute the boundaries of the LLVM code for AMODULE. */
2575 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end)
2578 int version, fde_count;
2581 if (amodule->info.llvm_get_method) {
2582 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2584 *code_start = (guint8 *)get_method (-1);
2585 *code_end = (guint8 *)get_method (-2);
2587 g_assert (*code_end > *code_start);
2591 g_assert (amodule->mono_eh_frame);
2593 p = amodule->mono_eh_frame;
2595 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2599 g_assert (version == 3);
2602 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2604 fde_count = *(guint32*)p;
2608 if (fde_count > 0) {
2609 *code_start = (guint8 *)amodule->methods [table [0]];
2610 *code_end = (guint8*)amodule->methods [table [(fde_count - 1) * 2]] + table [fde_count * 2];
2618 is_llvm_code (MonoAotModule *amodule, guint8 *code)
2620 if ((guint8*)code >= amodule->llvm_code_start && (guint8*)code < amodule->llvm_code_end)
2627 is_thumb_code (MonoAotModule *amodule, guint8 *code)
2629 if (is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_THUMB))
2636 * decode_llvm_mono_eh_frame:
2638 * Decode the EH information emitted by our modified LLVM compiler and construct a
2639 * MonoJitInfo structure from it.
2640 * LOCKING: Acquires the domain lock.
2643 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
2644 MonoMethod *method, guint8 *code, guint32 code_len,
2645 MonoJitExceptionInfo *clauses, int num_clauses,
2646 MonoJitInfoFlags flags,
2648 int *this_reg, int *this_offset)
2650 guint8 *p, *code1, *code2;
2651 guint8 *fde, *cie, *code_start, *code_end;
2652 int version, fde_count;
2654 int i, pos, left, right;
2655 MonoJitExceptionInfo *ei;
2656 guint32 fde_len, ei_len, nested_len, nindex;
2657 gpointer *type_info;
2659 MonoLLVMFDEInfo info;
2661 if (!amodule->mono_eh_frame) {
2662 jinfo = (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, num_clauses, 0));
2663 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, 0);
2664 memcpy (jinfo->clauses, clauses, num_clauses * sizeof (MonoJitExceptionInfo));
2668 g_assert (amodule->mono_eh_frame && code);
2670 p = amodule->mono_eh_frame;
2672 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2676 g_assert (version == 3);
2678 /* func_encoding = *p; */
2680 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2682 fde_count = *(guint32*)p;
2686 /* There is +1 entry in the table */
2687 cie = p + ((fde_count + 1) * 8);
2689 /* Binary search in the table to find the entry for code */
2693 pos = (left + right) / 2;
2695 /* The table contains method index/fde offset pairs */
2696 g_assert (table [(pos * 2)] != -1);
2697 code1 = (guint8 *)amodule->methods [table [(pos * 2)]];
2698 if (pos + 1 == fde_count) {
2699 code2 = amodule->llvm_code_end;
2701 g_assert (table [(pos + 1) * 2] != -1);
2702 code2 = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2707 else if (code >= code2)
2713 code_start = (guint8 *)amodule->methods [table [(pos * 2)]];
2714 if (pos + 1 == fde_count) {
2715 /* The +1 entry in the table contains the length of the last method */
2716 int len = table [(pos + 1) * 2];
2717 code_end = code_start + len;
2719 code_end = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2722 code_len = code_end - code_start;
2724 g_assert (code >= code_start && code < code_end);
2726 if (is_thumb_code (amodule, code_start))
2727 /* Clear thumb flag */
2728 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2730 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2731 /* This won't overflow because there is +1 entry in the table */
2732 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2734 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info);
2736 ei_len = info.ex_info_len;
2737 type_info = info.type_info;
2738 *this_reg = info.this_reg;
2739 *this_offset = info.this_offset;
2741 /* Count number of nested clauses */
2743 for (i = 0; i < ei_len; ++i) {
2744 /* This might be unaligned */
2745 gint32 cindex1 = read32 (type_info [i]);
2748 for (l = nesting [cindex1]; l; l = l->next)
2753 * LLVM might represent one IL region with multiple regions, so have to
2754 * allocate a new JI.
2757 (MonoJitInfo *)mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, ei_len + nested_len, 0));
2758 mono_jit_info_init (jinfo, method, code, code_len, flags, ei_len + nested_len, 0);
2760 jinfo->unwind_info = mono_cache_unwind_info (info.unw_info, info.unw_info_len);
2761 /* This signals that unwind_info points to a normal cached unwind info */
2762 jinfo->from_aot = 0;
2763 jinfo->from_llvm = 1;
2765 for (i = 0; i < ei_len; ++i) {
2767 * clauses contains the original IL exception info saved by the AOT
2768 * compiler, we have to combine that with the information produced by LLVM
2770 /* The type_info entries contain IL clause indexes */
2771 int clause_index = read32 (type_info [i]);
2772 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2773 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2775 g_assert (clause_index < num_clauses);
2776 jei->flags = orig_jei->flags;
2777 jei->data.catch_class = orig_jei->data.catch_class;
2779 jei->try_start = ei [i].try_start;
2780 jei->try_end = ei [i].try_end;
2781 jei->handler_start = ei [i].handler_start;
2782 jei->clause_index = clause_index;
2784 if (is_thumb_code (amodule, (guint8 *)jei->try_start)) {
2785 jei->try_start = (void*)((mgreg_t)jei->try_start & ~1);
2786 jei->try_end = (void*)((mgreg_t)jei->try_end & ~1);
2787 /* Make sure we transition to thumb when a handler starts */
2788 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2792 /* See exception_cb () in mini-llvm.c as to why this is needed */
2794 for (i = 0; i < ei_len; ++i) {
2795 gint32 cindex1 = read32 (type_info [i]);
2798 for (l = nesting [cindex1]; l; l = l->next) {
2799 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2800 MonoJitExceptionInfo *nesting_ei;
2801 MonoJitExceptionInfo *nesting_clause = &clauses [nesting_cindex];
2803 nesting_ei = &jinfo->clauses [nindex];
2806 memcpy (nesting_ei, &jinfo->clauses [i], sizeof (MonoJitExceptionInfo));
2807 nesting_ei->flags = nesting_clause->flags;
2808 nesting_ei->data.catch_class = nesting_clause->data.catch_class;
2809 nesting_ei->clause_index = nesting_cindex;
2812 g_assert (nindex == ei_len + nested_len);
2818 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2822 if (async_context) {
2823 res = mono_domain_alloc0_lock_free (domain, size);
2824 InterlockedExchangeAdd (&async_jit_info_size, size);
2826 res = mono_domain_alloc0 (domain, size);
2832 * LOCKING: Acquires the domain lock.
2833 * In async context, this is async safe.
2836 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2837 MonoMethod *method, guint8* ex_info,
2838 guint8 *code, guint32 code_len)
2841 int i, buf_len, num_clauses, len;
2843 MonoJitInfoFlags flags = JIT_INFO_NONE;
2844 guint unwind_info, eflags;
2845 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2846 gboolean from_llvm, has_gc_map;
2848 int try_holes_info_size, num_holes;
2849 int this_reg = 0, this_offset = 0;
2852 /* Load the method info from the AOT file */
2853 async = mono_thread_info_is_async_context ();
2856 eflags = decode_value (p, &p);
2857 has_generic_jit_info = (eflags & 1) != 0;
2858 has_dwarf_unwind_info = (eflags & 2) != 0;
2859 has_clauses = (eflags & 4) != 0;
2860 has_seq_points = (eflags & 8) != 0;
2861 from_llvm = (eflags & 16) != 0;
2862 has_try_block_holes = (eflags & 32) != 0;
2863 has_gc_map = (eflags & 64) != 0;
2864 has_arch_eh_jit_info = (eflags & 128) != 0;
2866 if (has_dwarf_unwind_info) {
2867 unwind_info = decode_value (p, &p);
2868 g_assert (unwind_info < (1 << 30));
2870 unwind_info = decode_value (p, &p);
2872 if (has_generic_jit_info)
2873 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2875 if (has_try_block_holes) {
2876 num_holes = decode_value (p, &p);
2877 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2878 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2880 num_holes = try_holes_info_size = 0;
2883 if (has_arch_eh_jit_info) {
2884 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2885 /* Overwrite the original code_len which includes alignment padding */
2886 code_len = decode_value (p, &p);
2889 /* Exception table */
2891 num_clauses = decode_value (p, &p);
2896 MonoJitExceptionInfo *clauses;
2903 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2906 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2907 nesting = g_new0 (GSList*, num_clauses);
2909 for (i = 0; i < num_clauses; ++i) {
2910 MonoJitExceptionInfo *ei = &clauses [i];
2912 ei->flags = decode_value (p, &p);
2914 if (decode_value (p, &p)) {
2915 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
2916 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2919 ei->clause_index = i;
2921 ei->try_offset = decode_value (p, &p);
2922 ei->try_len = decode_value (p, &p);
2923 ei->handler_offset = decode_value (p, &p);
2924 ei->handler_len = decode_value (p, &p);
2926 /* Read the list of nesting clauses */
2928 int nesting_index = decode_value (p, &p);
2929 if (nesting_index == -1)
2931 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2935 jinfo = decode_llvm_mono_eh_frame (amodule, domain, method, code, code_len, clauses, num_clauses, flags, nesting, &this_reg, &this_offset);
2938 for (i = 0; i < num_clauses; ++i)
2939 g_slist_free (nesting [i]);
2942 len = mono_jit_info_size (flags, num_clauses, num_holes);
2943 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
2944 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
2946 for (i = 0; i < jinfo->num_clauses; ++i) {
2947 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2949 ei->flags = decode_value (p, &p);
2951 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
2952 /* Not used for catch clauses */
2953 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
2954 ei->exvar_offset = decode_value (p, &p);
2956 ei->exvar_offset = decode_value (p, &p);
2959 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
2960 ei->data.filter = code + decode_value (p, &p);
2962 int len = decode_value (p, &p);
2968 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
2969 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2974 ei->try_start = code + decode_value (p, &p);
2975 ei->try_end = code + decode_value (p, &p);
2976 ei->handler_start = code + decode_value (p, &p);
2979 jinfo->unwind_info = unwind_info;
2980 jinfo->domain_neutral = 0;
2981 jinfo->from_aot = 1;
2984 if (has_try_block_holes) {
2985 MonoTryBlockHoleTableJitInfo *table;
2987 g_assert (jinfo->has_try_block_holes);
2989 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2992 table->num_holes = (guint16)num_holes;
2993 for (i = 0; i < num_holes; ++i) {
2994 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
2995 hole->clause = decode_value (p, &p);
2996 hole->length = decode_value (p, &p);
2997 hole->offset = decode_value (p, &p);
3001 if (has_arch_eh_jit_info) {
3002 MonoArchEHJitInfo *eh_info;
3004 g_assert (jinfo->has_arch_eh_info);
3006 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
3007 eh_info->stack_size = decode_value (p, &p);
3008 eh_info->epilog_size = decode_value (p, &p);
3012 /* The rest is not needed in async mode */
3013 jinfo->async = TRUE;
3014 jinfo->d.aot_info = amodule;
3019 if (has_generic_jit_info) {
3020 MonoGenericJitInfo *gi;
3023 g_assert (jinfo->has_generic_jit_info);
3025 gi = mono_jit_info_get_generic_jit_info (jinfo);
3028 gi->nlocs = decode_value (p, &p);
3030 gi->locations = (MonoDwarfLocListEntry *)alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
3031 for (i = 0; i < gi->nlocs; ++i) {
3032 MonoDwarfLocListEntry *entry = &gi->locations [i];
3034 entry->is_reg = decode_value (p, &p);
3035 entry->reg = decode_value (p, &p);
3037 entry->offset = decode_value (p, &p);
3039 entry->from = decode_value (p, &p);
3040 entry->to = decode_value (p, &p);
3045 gi->has_this = this_reg != -1;
3046 gi->this_reg = this_reg;
3047 gi->this_offset = this_offset;
3049 gi->has_this = decode_value (p, &p);
3050 gi->this_reg = decode_value (p, &p);
3051 gi->this_offset = decode_value (p, &p);
3055 len = decode_value (p, &p);
3059 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p, &error);
3060 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3063 gi->generic_sharing_context = alloc0_jit_info_data (domain, sizeof (MonoGenericSharingContext), async);
3064 if (decode_value (p, &p)) {
3066 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
3068 gsctx->is_gsharedvt = TRUE;
3072 if (method && has_seq_points) {
3073 MonoSeqPointInfo *seq_points;
3075 p += mono_seq_point_info_read (&seq_points, p, FALSE);
3077 mono_domain_lock (domain);
3078 /* This could be set already since this function can be called more than once for the same method */
3079 if (!g_hash_table_lookup (domain_jit_info (domain)->seq_points, method))
3080 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
3082 mono_seq_point_info_free (seq_points);
3083 mono_domain_unlock (domain);
3086 /* Load debug info */
3087 buf_len = decode_value (p, &p);
3089 mono_debug_add_aot_method (domain, method, code, p, buf_len);
3093 int map_size = decode_value (p, &p);
3094 /* The GC map requires 4 bytes of alignment */
3095 while ((guint64)(gsize)p % 4)
3101 if (amodule != jinfo->d.method->klass->image->aot_module) {
3104 ji_to_amodule = g_hash_table_new (NULL, NULL);
3105 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
3113 amodule_contains_code_addr (MonoAotModule *amodule, guint8 *code)
3115 return (code >= amodule->jit_code_start && code <= amodule->jit_code_end) ||
3116 (code >= amodule->llvm_code_start && code <= amodule->llvm_code_end);
3120 * mono_aot_get_unwind_info:
3122 * Return a pointer to the DWARF unwind info belonging to JI.
3125 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
3127 MonoAotModule *amodule;
3129 guint8 *code = (guint8 *)ji->code_start;
3132 amodule = (MonoAotModule *)ji->d.aot_info;
3134 amodule = (MonoAotModule *)jinfo_get_method (ji)->klass->image->aot_module;
3136 g_assert (ji->from_aot);
3138 if (!amodule_contains_code_addr (amodule, code)) {
3139 /* ji belongs to a different aot module than amodule */
3141 g_assert (ji_to_amodule);
3142 amodule = (MonoAotModule *)g_hash_table_lookup (ji_to_amodule, ji);
3144 g_assert (amodule_contains_code_addr (amodule, code));
3148 p = amodule->unwind_info + ji->unwind_info;
3149 *unwind_info_len = decode_value (p, &p);
3154 msort_method_addresses_internal (gpointer *array, int *indexes, int lo, int hi, gpointer *scratch, int *scratch_indexes)
3156 int mid = (lo + hi) / 2;
3163 for (i = lo; i < hi; ++i)
3164 if (array [i] > array [i + 1])
3167 /* Already sorted */
3171 msort_method_addresses_internal (array, indexes, lo, mid, scratch, scratch_indexes);
3172 msort_method_addresses_internal (array, indexes, mid + 1, hi, scratch, scratch_indexes);
3174 if (array [mid] < array [mid + 1])
3180 for (i = lo; i <= hi; i ++) {
3181 if (t_lo <= mid && ((t_hi > hi) || array [t_lo] < array [t_hi])) {
3182 scratch [i] = array [t_lo];
3183 scratch_indexes [i] = indexes [t_lo];
3186 scratch [i] = array [t_hi];
3187 scratch_indexes [i] = indexes [t_hi];
3191 for (i = lo; i <= hi; ++i) {
3192 array [i] = scratch [i];
3193 indexes [i] = scratch_indexes [i];
3198 msort_method_addresses (gpointer *array, int *indexes, int len)
3201 int *scratch_indexes;
3203 scratch = g_new (gpointer, len);
3204 scratch_indexes = g_new (int, len);
3205 msort_method_addresses_internal (array, indexes, 0, len - 1, scratch, scratch_indexes);
3207 g_free (scratch_indexes);
3211 * mono_aot_find_jit_info:
3213 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3214 * to the jit info tables.
3215 * FIXME: Large sizes in the lock free allocator
3218 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3221 int pos, left, right, code_len;
3222 int method_index, table_len;
3224 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
3225 MonoMethod *method = NULL;
3227 guint8 *code, *ex_info, *p;
3231 guint8 *code1, *code2;
3238 nmethods = amodule->info.nmethods;
3240 if (domain != mono_get_root_domain ())
3244 if (!amodule_contains_code_addr (amodule, (guint8 *)addr))
3247 async = mono_thread_info_is_async_context ();
3249 /* Compute a sorted table mapping code to method indexes. */
3250 if (!amodule->sorted_methods) {
3252 gpointer *methods = g_new0 (gpointer, nmethods);
3253 int *method_indexes = g_new0 (int, nmethods);
3254 int methods_len = 0;
3256 for (i = 0; i < nmethods; ++i) {
3257 /* Skip the -1 entries to speed up sorting */
3258 if (amodule->methods [i] == GINT_TO_POINTER (-1))
3260 methods [methods_len] = amodule->methods [i];
3261 method_indexes [methods_len] = i;
3264 /* Use a merge sort as this is mostly sorted */
3265 msort_method_addresses (methods, method_indexes, methods_len);
3266 for (i = 0; i < methods_len -1; ++i)
3267 g_assert (methods [i] <= methods [i + 1]);
3268 amodule->sorted_methods_len = methods_len;
3269 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_methods, methods, NULL) != NULL)
3270 /* Somebody got in before us */
3272 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_method_indexes, method_indexes, NULL) != NULL)
3273 /* Somebody got in before us */
3274 g_free (method_indexes);
3277 /* Binary search in the sorted_methods table */
3278 methods = amodule->sorted_methods;
3279 methods_len = amodule->sorted_methods_len;
3280 code = (guint8 *)addr;
3282 right = methods_len;
3284 pos = (left + right) / 2;
3286 code1 = (guint8 *)methods [pos];
3287 if (pos + 1 == methods_len) {
3288 if (code1 >= amodule->jit_code_start && code1 < amodule->jit_code_end)
3289 code2 = amodule->jit_code_end;
3291 code2 = amodule->llvm_code_end;
3293 code2 = (guint8 *)methods [pos + 1];
3298 else if (code >= code2)
3304 g_assert (addr >= methods [pos]);
3305 if (pos + 1 < methods_len)
3306 g_assert (addr < methods [pos + 1]);
3307 method_index = amodule->sorted_method_indexes [pos];
3309 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3311 JitInfoMap *table = amodule->async_jit_info_table;
3315 len = table [0].method_index;
3316 for (i = 1; i < len; ++i) {
3317 if (table [i].method_index == method_index)
3318 return table [i].jinfo;
3323 code = (guint8 *)amodule->methods [method_index];
3324 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3326 if (pos == methods_len - 1) {
3327 if (code >= amodule->jit_code_start && code < amodule->jit_code_end)
3328 code_len = amodule->jit_code_end - code;
3330 code_len = amodule->llvm_code_end - code;
3332 code_len = (guint8*)methods [pos + 1] - (guint8*)methods [pos];
3335 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3337 /* Might be a wrapper/extra method */
3339 if (amodule->extra_methods) {
3340 amodule_lock (amodule);
3341 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3342 amodule_unlock (amodule);
3348 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3350 * This is hit for extra methods which are called directly, so they are
3351 * not in amodule->extra_methods.
3353 table_len = amodule->extra_method_info_offsets [0];
3354 table = amodule->extra_method_info_offsets + 1;
3361 pos = ((left + right) / 2);
3363 g_assert (pos < table_len);
3365 if (table [pos * 2] < method_index)
3367 else if (table [pos * 2] > method_index)
3373 p = amodule->blob + table [(pos * 2) + 1];
3374 method = decode_resolve_method_ref (amodule, p, &p, &error);
3375 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3377 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3381 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3382 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3384 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3391 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3393 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code, code_len);
3395 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3397 /* Add it to the normal JitInfo tables */
3399 JitInfoMap *old_table, *new_table;
3403 * Use a simple inmutable table with linear search to cache async jit info entries.
3404 * This assumes that the number of entries is small.
3407 /* Copy the table, adding a new entry at the end */
3408 old_table = amodule->async_jit_info_table;
3410 len = old_table[0].method_index;
3413 new_table = (JitInfoMap *)alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3415 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3416 new_table [0].method_index = len + 1;
3417 new_table [len].method_index = method_index;
3418 new_table [len].jinfo = jinfo;
3420 mono_memory_barrier ();
3421 if (InterlockedCompareExchangePointer ((volatile gpointer *)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3425 mono_jit_info_table_add (domain, jinfo);
3428 if ((guint8*)addr >= (guint8*)jinfo->code_start + jinfo->code_size)
3429 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3436 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3445 case MONO_PATCH_INFO_METHOD:
3446 case MONO_PATCH_INFO_METHOD_JUMP:
3447 case MONO_PATCH_INFO_ICALL_ADDR:
3448 case MONO_PATCH_INFO_ICALL_ADDR_CALL:
3449 case MONO_PATCH_INFO_METHOD_RGCTX:
3450 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3454 res = decode_method_ref (aot_module, &ref, p, &p, &error);
3455 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3459 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)) {
3460 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3461 ji->type = MONO_PATCH_INFO_ABS;
3465 ji->data.method = ref.method;
3468 ji->data.method = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
3469 if (!ji->data.method)
3470 g_error ("AOT Runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3472 g_assert (ji->data.method);
3473 mono_class_init (ji->data.method->klass);
3477 case MONO_PATCH_INFO_INTERNAL_METHOD:
3478 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3479 guint32 len = decode_value (p, &p);
3481 ji->data.name = (char*)p;
3485 case MONO_PATCH_INFO_METHODCONST:
3487 ji->data.method = decode_resolve_method_ref (aot_module, p, &p, &error);
3488 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3489 if (!ji->data.method)
3492 case MONO_PATCH_INFO_VTABLE:
3493 case MONO_PATCH_INFO_CLASS:
3494 case MONO_PATCH_INFO_IID:
3495 case MONO_PATCH_INFO_ADJUSTED_IID:
3497 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3498 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3499 if (!ji->data.klass)
3502 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3503 ji->data.del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3504 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p, &error);
3505 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3506 if (!ji->data.del_tramp->klass)
3508 if (decode_value (p, &p)) {
3509 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3510 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3511 if (!ji->data.del_tramp->method)
3514 ji->data.del_tramp->is_virtual = decode_value (p, &p) ? TRUE : FALSE;
3516 case MONO_PATCH_INFO_IMAGE:
3517 ji->data.image = load_image (aot_module, decode_value (p, &p), &error);
3518 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3519 if (!ji->data.image)
3522 case MONO_PATCH_INFO_FIELD:
3523 case MONO_PATCH_INFO_SFLDA:
3525 ji->data.field = decode_field_info (aot_module, p, &p);
3526 if (!ji->data.field)
3529 case MONO_PATCH_INFO_SWITCH:
3530 ji->data.table = (MonoJumpInfoBBTable *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3531 ji->data.table->table_size = decode_value (p, &p);
3532 table = (void **)mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3533 ji->data.table->table = (MonoBasicBlock**)table;
3534 for (i = 0; i < ji->data.table->table_size; i++)
3535 table [i] = (gpointer)(gssize)decode_value (p, &p);
3537 case MONO_PATCH_INFO_R4: {
3540 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3541 val = decode_value (p, &p);
3542 *(float*)ji->data.target = *(float*)&val;
3545 case MONO_PATCH_INFO_R8: {
3549 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3551 val [0] = decode_value (p, &p);
3552 val [1] = decode_value (p, &p);
3553 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3554 *(double*)ji->data.target = *(double*)&v;
3557 case MONO_PATCH_INFO_LDSTR:
3558 image = load_image (aot_module, decode_value (p, &p), &error);
3559 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3562 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3564 case MONO_PATCH_INFO_RVA:
3565 case MONO_PATCH_INFO_DECLSEC:
3566 case MONO_PATCH_INFO_LDTOKEN:
3567 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3569 image = load_image (aot_module, decode_value (p, &p), &error);
3570 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3573 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3575 ji->data.token->has_context = decode_value (p, &p);
3576 if (ji->data.token->has_context) {
3577 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p, &error);
3578 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3583 case MONO_PATCH_INFO_EXC_NAME:
3584 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3585 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3586 if (!ji->data.klass)
3588 ji->data.name = ji->data.klass->name;
3590 case MONO_PATCH_INFO_METHOD_REL:
3591 ji->data.offset = decode_value (p, &p);
3593 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3594 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3595 case MONO_PATCH_INFO_GC_NURSERY_START:
3596 case MONO_PATCH_INFO_GC_NURSERY_BITS:
3597 case MONO_PATCH_INFO_JIT_TLS_ID:
3599 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3600 ji->data.index = decode_value (p, &p);
3602 case MONO_PATCH_INFO_RGCTX_FETCH:
3603 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
3605 MonoJumpInfoRgctxEntry *entry;
3606 guint32 offset, val;
3609 offset = decode_value (p, &p);
3610 val = decode_value (p, &p);
3612 entry = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3613 p2 = aot_module->blob + offset;
3614 entry->method = decode_resolve_method_ref (aot_module, p2, &p2, &error);
3615 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3616 entry->info_type = (MonoRgctxInfoType)((val >> 1) & 0xff);
3617 entry->data = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3618 entry->data->type = (MonoJumpInfoType)((val >> 9) & 0xff);
3619 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3621 res = decode_patch (aot_module, mp, entry->data, p, &p);
3624 ji->data.rgctx_entry = entry;
3627 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3628 case MONO_PATCH_INFO_AOT_MODULE:
3629 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
3631 case MONO_PATCH_INFO_SIGNATURE:
3632 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
3633 ji->data.target = decode_signature (aot_module, p, &p);
3635 case MONO_PATCH_INFO_TLS_OFFSET:
3636 ji->data.target = GINT_TO_POINTER (decode_value (p, &p));
3638 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3639 MonoJumpInfoGSharedVtCall *info = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3640 info->sig = decode_signature (aot_module, p, &p);
3641 g_assert (info->sig);
3642 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3643 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3645 ji->data.target = info;
3648 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3649 MonoGSharedVtMethodInfo *info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3652 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3653 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3655 info->num_entries = decode_value (p, &p);
3656 info->count_entries = info->num_entries;
3657 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3658 for (i = 0; i < info->num_entries; ++i) {
3659 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
3661 template_->info_type = (MonoRgctxInfoType)decode_value (p, &p);
3662 switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) {
3663 case MONO_PATCH_INFO_CLASS: {
3664 MonoClass *klass = decode_klass_ref (aot_module, p, &p, &error);
3665 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3668 template_->data = &klass->byval_arg;
3671 case MONO_PATCH_INFO_FIELD:
3672 template_->data = decode_field_info (aot_module, p, &p);
3673 if (!template_->data)
3677 g_assert_not_reached ();
3681 ji->data.target = info;
3684 case MONO_PATCH_INFO_LDSTR_LIT: {
3685 int len = decode_value (p, &p);
3688 s = (char *)mono_mempool_alloc0 (mp, len + 1);
3689 memcpy (s, p, len + 1);
3692 ji->data.target = s;
3695 case MONO_PATCH_INFO_VIRT_METHOD: {
3696 MonoJumpInfoVirtMethod *info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
3698 info->klass = decode_klass_ref (aot_module, p, &p, &error);
3699 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3701 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3702 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3704 ji->data.target = info;
3707 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
3709 case MONO_PATCH_INFO_AOT_JIT_INFO:
3710 ji->data.index = decode_value (p, &p);
3713 g_warning ("unhandled type %d", ji->type);
3714 g_assert_not_reached ();
3728 * Decode a list of patches identified by the got offsets in GOT_OFFSETS. Return an array of
3729 * MonoJumpInfo structures allocated from MP.
3731 static MonoJumpInfo*
3732 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets)
3734 MonoJumpInfo *patches;
3737 guint32 *got_info_offsets;
3742 got = amodule->llvm_got;
3743 got_info_offsets = (guint32 *)amodule->llvm_got_info_offsets;
3746 got_info_offsets = (guint32 *)amodule->got_info_offsets;
3749 patches = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3750 for (i = 0; i < n_patches; ++i) {
3751 guint8 *p = amodule->blob + mono_aot_get_offset (got_info_offsets, got_offsets [i]);
3754 ji->type = (MonoJumpInfoType)decode_value (p, &p);
3756 /* See load_method () for SFLDA */
3757 if (got && got [got_offsets [i]] && ji->type != MONO_PATCH_INFO_SFLDA) {
3758 /* Already loaded */
3760 res = decode_patch (amodule, mp, ji, p, &p);
3769 static MonoJumpInfo*
3770 load_patch_info (MonoAotModule *amodule, MonoMemPool *mp, int n_patches,
3771 gboolean llvm, guint32 **got_slots,
3772 guint8 *buf, guint8 **endbuf)
3774 MonoJumpInfo *patches;
3780 *got_slots = (guint32 *)g_malloc (sizeof (guint32) * n_patches);
3781 for (pindex = 0; pindex < n_patches; ++pindex) {
3782 (*got_slots)[pindex] = decode_value (p, &p);
3785 patches = decode_patches (amodule, mp, n_patches, llvm, *got_slots);
3787 g_free (*got_slots);
3797 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3800 * Jump addresses cannot be patched by the trampoline code since it
3801 * does not have access to the caller's address. Instead, we collect
3802 * the addresses of the GOT slots pointing to a method, and patch
3803 * them after the method has been compiled.
3805 MonoJitDomainInfo *info = domain_jit_info (domain);
3808 mono_domain_lock (domain);
3809 if (!info->jump_target_got_slot_hash)
3810 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3811 list = (GSList *)g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3812 list = g_slist_prepend (list, got_slot);
3813 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3814 mono_domain_unlock (domain);
3820 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3821 * pointer to the native code of the method, or NULL if not found.
3822 * METHOD might not be set if the caller only has the image/token info.
3825 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
3827 MonoJitInfo *jinfo = NULL;
3828 guint8 *code = NULL, *info;
3831 init_amodule_got (amodule);
3833 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE) {
3835 /* The caller cannot handle this */
3836 g_assert_not_reached ();
3840 if (domain != mono_get_root_domain ())
3841 /* Non shared AOT code can't be used in other appdomains */
3844 if (amodule->out_of_date)
3847 if (amodule->info.llvm_get_method) {
3849 * Obtain the method address by calling a generated function in the LLVM module.
3851 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
3852 code = (guint8 *)get_method (method_index);
3857 if (amodule->methods [method_index] == GINT_TO_POINTER (-1)) {
3858 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3863 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3864 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3866 full_name = mono_method_full_name (method, TRUE);
3867 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3872 code = (guint8 *)amodule->methods [method_index];
3875 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3877 if (!amodule->methods_loaded) {
3878 amodule_lock (amodule);
3879 if (!amodule->methods_loaded) {
3882 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3883 mono_memory_barrier ();
3884 amodule->methods_loaded = loaded;
3886 amodule_unlock (amodule);
3889 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3892 if (mono_last_aot_method != -1) {
3893 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3895 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3898 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3900 mono_error_cleanup (&error);/* FIXME don't swallow the error */
3903 char *name = mono_method_full_name (method, TRUE);
3904 g_print ("LAST AOT METHOD: %s.\n", name);
3907 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3912 if (!(is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY))) {
3915 res = init_method (amodule, method_index, method, NULL, NULL, &error);
3916 if (!mono_error_ok (&error))
3917 mono_error_raise_exception (&error); /* FIXME: Don't raise here */
3922 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3927 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3929 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3932 full_name = mono_method_full_name (method, TRUE);
3935 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3937 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
3941 amodule_lock (amodule);
3943 InterlockedIncrement (&mono_jit_stats.methods_aot);
3945 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
3949 if (method && method->wrapper_type)
3950 g_hash_table_insert (amodule->method_to_code, method, code);
3952 amodule_unlock (amodule);
3954 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
3959 method = mono_get_method_checked (amodule->assembly->image, token, NULL, NULL, &error);
3961 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3963 mono_profiler_method_jit (method);
3964 jinfo = mono_jit_info_table_find (domain, (char*)code);
3966 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
3979 find_aot_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, guint32 hash_full)
3982 guint32 table_size, entry_size, hash;
3983 guint32 *table, *entry;
3985 static guint32 n_extra_decodes;
3987 if (!amodule || amodule->out_of_date)
3990 table_size = amodule->extra_method_table [0];
3991 hash = hash_full % table_size;
3992 table = amodule->extra_method_table + 1;
3995 entry = &table [hash * entry_size];
4002 guint32 key = entry [0];
4003 guint32 value = entry [1];
4004 guint32 next = entry [entry_size - 1];
4008 p = amodule->blob + key;
4011 amodule_lock (amodule);
4012 if (!amodule->method_ref_to_method)
4013 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
4014 m = (MonoMethod *)g_hash_table_lookup (amodule->method_ref_to_method, p);
4015 amodule_unlock (amodule);
4017 m = decode_resolve_method_ref_with_target (amodule, method, p, &p, &error);
4018 mono_error_cleanup (&error); /* FIXME don't swallow the error */
4020 * Can't catche runtime invoke wrappers since it would break
4021 * the check in decode_method_ref_with_target ().
4023 if (m && m->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
4024 amodule_lock (amodule);
4025 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
4026 amodule_unlock (amodule);
4035 * Special case: wrappers of shared generic methods.
4036 * This is needed because of the way mini_get_shared_method () works,
4037 * we could end up with multiple copies of the same wrapper.
4039 if (m && method->wrapper_type && method->wrapper_type == m->wrapper_type &&
4040 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
4041 MonoMethod *w1 = mono_marshal_method_from_wrapper (method);
4042 MonoMethod *w2 = mono_marshal_method_from_wrapper (m);
4044 if ((w1 == w2) || (w1->is_inflated && ((MonoMethodInflated *)w1)->declaring == w2)) {
4049 if (m && method->wrapper_type && method->wrapper_type == m->wrapper_type &&
4050 method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
4051 WrapperInfo *info1 = mono_marshal_get_wrapper_info (method);
4052 WrapperInfo *info2 = mono_marshal_get_wrapper_info (m);
4054 if (info1 && info2 && info1->subtype == info2->subtype && method->klass == m->klass) {
4060 /* Methods decoded needlessly */
4062 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
4067 entry = &table [next * entry_size];
4076 add_module_cb (gpointer key, gpointer value, gpointer user_data)
4078 g_ptr_array_add ((GPtrArray*)user_data, value);
4084 * Try finding METHOD in the extra_method table in all AOT images.
4085 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
4086 * module where the method was found.
4089 find_aot_method (MonoMethod *method, MonoAotModule **out_amodule)
4094 guint32 hash = mono_aot_method_hash (method);
4096 /* Try the method's module first */
4097 *out_amodule = (MonoAotModule *)method->klass->image->aot_module;
4098 index = find_aot_method_in_amodule ((MonoAotModule *)method->klass->image->aot_module, method, hash);
4099 if (index != 0xffffff)
4103 * Try all other modules.
4104 * This is needed because generic instances klass->image points to the image
4105 * containing the generic definition, but the native code is generated to the
4106 * AOT image which contains the reference.
4109 /* Make a copy to avoid doing the search inside the aot lock */
4110 modules = g_ptr_array_new ();
4112 g_hash_table_foreach (aot_modules, add_module_cb, modules);
4116 for (i = 0; i < modules->len; ++i) {
4117 MonoAotModule *amodule = (MonoAotModule *)g_ptr_array_index (modules, i);
4119 if (amodule != method->klass->image->aot_module)
4120 index = find_aot_method_in_amodule (amodule, method, hash);
4121 if (index != 0xffffff) {
4122 *out_amodule = amodule;
4127 g_ptr_array_free (modules, TRUE);
4133 mono_aot_find_method_index (MonoMethod *method)
4135 MonoAotModule *out_amodule;
4136 return find_aot_method (method, &out_amodule);
4140 init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context, MonoError *error)
4142 MonoDomain *domain = mono_domain_get ();
4144 MonoClass *klass_to_run_ctor = NULL;
4145 gboolean from_plt = method == NULL;
4146 int pindex, n_patches;
4148 MonoJitInfo *jinfo = NULL;
4149 guint8 *code, *info;
4151 mono_error_init (error);
4153 code = (guint8 *)amodule->methods [method_index];
4154 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
4158 //does the method's class has a cctor?
4159 if (decode_value (p, &p) == 1)
4160 klass_to_run_ctor = decode_klass_ref (amodule, p, &p, error);
4164 //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
4166 klass_to_run_ctor = method->klass;
4168 n_patches = decode_value (p, &p);
4171 MonoJumpInfo *patches;
4176 mp = mono_mempool_new ();
4178 if ((gpointer)code >= amodule->info.jit_code_start && (gpointer)code <= amodule->info.jit_code_end) {
4183 got = amodule->llvm_got;
4187 patches = load_patch_info (amodule, mp, n_patches, llvm, &got_slots, p, &p);
4188 if (patches == NULL) {
4189 mono_mempool_destroy (mp);
4193 for (pindex = 0; pindex < n_patches; ++pindex) {
4194 MonoJumpInfo *ji = &patches [pindex];
4198 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
4199 * been initialized by load_method () for a static cctor before the cctor has
4200 * finished executing (#23242).
4202 if (!got [got_slots [pindex]] || ji->type == MONO_PATCH_INFO_SFLDA) {
4203 /* In llvm-only made, we might encounter shared methods */
4204 if (mono_llvm_only && ji->type == MONO_PATCH_INFO_METHOD && mono_method_check_context_used (ji->data.method)) {
4206 ji->data.method = mono_class_inflate_generic_method_checked (ji->data.method, context, error);
4207 if (!mono_error_ok (error)) {
4209 mono_mempool_destroy (mp);
4213 /* This cannot be resolved in mono_resolve_patch_target () */
4214 if (ji->type == MONO_PATCH_INFO_AOT_JIT_INFO) {
4215 // FIXME: Lookup using the index
4216 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4217 ji->type = MONO_PATCH_INFO_ABS;
4218 ji->data.target = jinfo;
4220 addr = mono_resolve_patch_target (method, domain, code, ji, TRUE, error);
4221 if (!mono_error_ok (error)) {
4223 mono_mempool_destroy (mp);
4226 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4227 addr = mono_create_ftnptr (domain, addr);
4228 mono_memory_barrier ();
4229 got [got_slots [pindex]] = addr;
4230 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4231 register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
4233 ji->type = MONO_PATCH_INFO_NONE;
4238 mono_mempool_destroy (mp);
4241 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
4242 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4244 gboolean inited_ok = TRUE;
4246 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, init_class), error);
4247 else if (from_plt && klass_to_run_ctor && !klass_to_run_ctor->generic_container)
4248 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, klass_to_run_ctor), error);
4262 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
4264 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4268 res = init_method (amodule, method_index, NULL, NULL, NULL, &error);
4269 // FIXME: Pass the exception up to the caller ?
4270 /* Its okay to raise in llvmonly mode */
4271 mono_error_raise_exception (&error);
4275 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this_obj)
4277 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4280 MonoGenericContext *context;
4285 g_assert (this_obj);
4286 klass = this_obj->vtable->klass;
4288 amodule_lock (amodule);
4289 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4290 amodule_unlock (amodule);
4293 context = mono_method_get_context (method);
4296 res = init_method (amodule, method_index, NULL, klass, context, &error);
4297 mono_error_raise_exception (&error);
4301 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
4303 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4305 MonoGenericContext context = { NULL, NULL };
4306 MonoClass *klass = rgctx->class_vtable->klass;
4309 if (klass->generic_class)
4310 context.class_inst = klass->generic_class->context.class_inst;
4311 else if (klass->generic_container)
4312 context.class_inst = klass->generic_container->context.class_inst;
4313 context.method_inst = rgctx->method_inst;
4315 res = init_method (amodule, method_index, NULL, rgctx->class_vtable->klass, &context, &error);
4316 mono_error_raise_exception (&error);
4320 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
4322 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4325 MonoGenericContext *context;
4329 klass = vtable->klass;
4331 amodule_lock (amodule);
4332 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4333 amodule_unlock (amodule);
4336 context = mono_method_get_context (method);
4339 res = init_method (amodule, method_index, NULL, klass, context, &error);
4340 mono_error_raise_exception (&error);
4344 * mono_aot_get_method:
4346 * Return a pointer to the AOTed native code for METHOD if it can be found,
4348 * On platforms with function pointers, this doesn't return a function pointer.
4351 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
4353 MonoClass *klass = method->klass;
4354 MonoMethod *orig_method = method;
4355 guint32 method_index;
4356 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
4358 gboolean cache_result = FALSE;
4360 if (domain != mono_get_root_domain ())
4361 /* Non shared AOT code can't be used in other appdomains */
4364 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
4365 /* This cannot be AOTed during startup, so do it now */
4366 if (!mscorlib_aot_loaded) {
4367 mscorlib_aot_loaded = TRUE;
4368 load_aot_module (klass->image->assembly, NULL);
4369 amodule = (MonoAotModule *)klass->image->aot_module;
4376 if (amodule->out_of_date)
4379 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4380 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4381 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4382 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
4386 * Use the original method instead of its invoke-with-check wrapper.
4387 * This is not a problem when using full-aot, since it doesn't support
4390 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4391 return mono_aot_get_method (domain, mono_marshal_method_from_wrapper (method));
4393 g_assert (klass->inited);
4395 /* Find method index */
4396 method_index = 0xffffff;
4397 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)) {
4398 MonoMethod *orig_method = method;
4400 * For generic methods, we store the fully shared instance in place of the
4403 method = mono_method_get_declaring_generic_method (method);
4404 method_index = mono_metadata_token_index (method->token) - 1;
4406 if (mono_llvm_only) {
4407 /* Needed by mono_aot_init_gshared_method_this () */
4408 /* orig_method is a random instance but it is enough to make init_method () work */
4409 amodule_lock (amodule);
4410 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), orig_method);
4411 amodule_unlock (amodule);
4413 } else if (method->is_inflated || !method->token) {
4414 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4415 amodule_lock (amodule);
4416 code = (guint8 *)g_hash_table_lookup (amodule->method_to_code, method);
4417 amodule_unlock (amodule);
4421 cache_result = TRUE;
4422 method_index = find_aot_method (method, &amodule);
4424 * Special case the ICollection<T> wrappers for arrays, as they cannot
4425 * be statically enumerated, and each wrapper ends up calling the same
4428 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
4429 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4431 code = (guint8 *)mono_aot_get_method (domain, m);
4437 * Special case Array.GetGenericValueImpl which is a generic icall.
4438 * Generic sharing currently can't handle it, but the icall returns data using
4439 * an out parameter, so the managed-to-native wrappers can share the same code.
4441 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
4444 MonoGenericContext ctx;
4445 MonoType *args [16];
4447 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
4448 /* Avoid recursion */
4451 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
4454 memset (&ctx, 0, sizeof (ctx));
4455 args [0] = &mono_defaults.object_class->byval_arg;
4456 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4458 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4460 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
4463 * Get the code for the <object> instantiation which should be emitted into
4464 * the mscorlib aot image by the AOT compiler.
4466 code = (guint8 *)mono_aot_get_method (domain, m);
4471 /* Same for CompareExchange<T> and Exchange<T> */
4472 /* Same for Volatile.Read<T>/Write<T> */
4473 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
4474 ((!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]))) ||
4475 (!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)))) ||
4476 (!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])))))) {
4479 MonoGenericContext ctx;
4480 MonoType *args [16];
4481 gpointer iter = NULL;
4483 while ((m = mono_class_get_methods (method->klass, &iter))) {
4484 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
4489 memset (&ctx, 0, sizeof (ctx));
4490 args [0] = &mono_defaults.object_class->byval_arg;
4491 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4493 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4495 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
4497 /* Avoid recursion */
4502 * Get the code for the <object> instantiation which should be emitted into
4503 * the mscorlib aot image by the AOT compiler.
4505 code = (guint8 *)mono_aot_get_method (domain, m);
4510 /* For ARRAY_ACCESSOR wrappers with reference types, use the <object> instantiation saved in corlib */
4511 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4512 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4514 if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
4515 MonoMethod *array_method = info->d.array_accessor.method;
4516 if (MONO_TYPE_IS_REFERENCE (&array_method->klass->element_class->byval_arg)) {
4517 MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, 1);
4518 MonoMethod *m = mono_class_get_method_from_name (obj_array_class, array_method->name, mono_method_signature (array_method)->param_count);
4521 m = mono_marshal_get_array_accessor_wrapper (m);
4523 code = (guint8 *)mono_aot_get_method (domain, m);
4531 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
4532 /* Partial sharing */
4535 shared = mini_get_shared_method (method);
4536 method_index = find_aot_method (shared, &amodule);
4537 if (method_index != 0xffffff)
4541 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4544 /* Use the all-vt shared method since this is what was AOTed */
4545 shared = mini_get_shared_method_full (method, TRUE, TRUE);
4546 method_index = find_aot_method (shared, &amodule);
4547 if (method_index != 0xffffff)
4548 method = mini_get_shared_method_full (method, TRUE, FALSE);
4551 if (method_index == 0xffffff) {
4552 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
4555 full_name = mono_method_full_name (method, TRUE);
4556 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
4562 if (method_index == 0xffffff)
4565 /* Needed by find_jit_info */
4566 amodule_lock (amodule);
4567 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
4568 amodule_unlock (amodule);
4571 method_index = mono_metadata_token_index (method->token) - 1;
4574 code = (guint8 *)load_method (domain, amodule, klass->image, method, method->token, method_index);
4575 if (code && cache_result) {
4576 amodule_lock (amodule);
4577 g_hash_table_insert (amodule->method_to_code, orig_method, code);
4578 amodule_unlock (amodule);
4584 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4588 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
4590 MonoAotModule *aot_module = (MonoAotModule *)image->aot_module;
4596 method_index = mono_metadata_token_index (token) - 1;
4598 return load_method (domain, aot_module, image, NULL, token, method_index);
4604 } IsGotEntryUserData;
4607 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4609 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4610 MonoAotModule *aot_module = (MonoAotModule*)value;
4612 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4617 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4619 IsGotEntryUserData user_data;
4624 user_data.addr = addr;
4625 user_data.res = FALSE;
4627 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4630 return user_data.res;
4635 MonoAotModule *module;
4636 } FindAotModuleUserData;
4639 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4641 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4642 MonoAotModule *aot_module = (MonoAotModule*)value;
4644 if (amodule_contains_code_addr (aot_module, data->addr))
4645 data->module = aot_module;
4648 static inline MonoAotModule*
4649 find_aot_module (guint8 *code)
4651 FindAotModuleUserData user_data;
4656 /* Reading these need no locking */
4657 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4660 user_data.addr = code;
4661 user_data.module = NULL;
4664 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4667 return user_data.module;
4671 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4673 MonoAotModule *amodule;
4676 * Since AOT code is only used in the root domain,
4677 * mono_domain_get () != mono_get_root_domain () means the calling method
4678 * is AppDomain:InvokeInDomain, so this is the same check as in
4679 * mono_method_same_domain () but without loading the metadata for the method.
4681 if (mono_domain_get () == mono_get_root_domain ()) {
4683 amodule = find_aot_module (code);
4687 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4692 * mono_aot_plt_resolve:
4694 * This function is called by the entries in the PLT to resolve the actual method that
4695 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4696 * Returns NULL if the something cannot be loaded.
4699 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
4701 #ifdef MONO_ARCH_AOT_SUPPORTED
4702 guint8 *p, *target, *plt_entry;
4704 MonoAotModule *module = (MonoAotModule*)aot_module;
4705 gboolean res, no_ftnptr = FALSE;
4707 gboolean using_gsharedvt = FALSE;
4709 mono_error_init (error);
4711 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4713 p = &module->blob [plt_info_offset];
4715 ji.type = (MonoJumpInfoType)decode_value (p, &p);
4717 mp = mono_mempool_new ();
4718 res = decode_patch (module, mp, &ji, p, &p);
4721 mono_mempool_destroy (mp);
4725 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4726 using_gsharedvt = TRUE;
4730 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4731 * it would create a trampoline, and we don't need that.
4732 * We could do this only if the method does not need the special handling
4733 * in mono_magic_trampoline ().
4735 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) &&
4736 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4737 target = (guint8 *)mono_jit_compile_method (ji.data.method, error);
4738 if (!mono_error_ok (error)) {
4739 mono_mempool_destroy (mp);
4744 target = (guint8 *)mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE, error);
4745 if (!mono_error_ok (error)) {
4746 mono_mempool_destroy (mp);
4752 * The trampoline expects us to return a function descriptor on platforms which use
4753 * it, but resolve_patch_target returns a direct function pointer for some type of
4754 * patches, so have to translate between the two.
4755 * FIXME: Clean this up, but how ?
4757 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) {
4758 /* These should already have a function descriptor */
4759 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4760 /* Our function descriptors have a 0 environment, gcc created ones don't */
4761 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4762 g_assert (((gpointer*)target) [2] == 0);
4765 } else if (!no_ftnptr) {
4766 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4767 g_assert (((gpointer*)target) [2] != 0);
4769 target = (guint8 *)mono_create_ftnptr (mono_domain_get (), target);
4772 mono_mempool_destroy (mp);
4774 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4775 plt_entry = mono_aot_get_plt_entry (code);
4776 g_assert (plt_entry);
4777 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4781 g_assert_not_reached ();
4789 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4790 * method in the module is loaded to avoid committing memory by writing to it.
4791 * LOCKING: Assumes the AMODULE lock is held.
4794 init_plt (MonoAotModule *amodule)
4799 if (amodule->plt_inited)
4802 if (amodule->info.plt_size <= 1) {
4803 amodule->plt_inited = TRUE;
4807 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4810 * Initialize the PLT entries in the GOT to point to the default targets.
4813 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4814 for (i = 1; i < amodule->info.plt_size; ++i)
4815 /* All the default entries point to the AOT trampoline */
4816 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4818 amodule->plt_inited = TRUE;
4822 * mono_aot_get_plt_entry:
4824 * Return the address of the PLT entry called by the code at CODE if exists.
4827 mono_aot_get_plt_entry (guint8 *code)
4829 MonoAotModule *amodule = find_aot_module (code);
4830 guint8 *target = NULL;
4836 if (is_thumb_code (amodule, code - 4))
4837 return mono_arm_get_thumb_plt_entry (code);
4840 #ifdef MONO_ARCH_AOT_SUPPORTED
4841 target = mono_arch_get_call_target (code);
4843 g_assert_not_reached ();
4847 while (target != NULL) {
4848 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4851 // Add 4 since mono_arch_get_call_target assumes we're passing
4852 // the instruction after the actual branch instruction.
4853 target = mono_arch_get_call_target (target + 4);
4858 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4866 * mono_aot_get_plt_info_offset:
4868 * Return the PLT info offset belonging to the plt entry called by CODE.
4871 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4873 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4875 g_assert (plt_entry);
4877 /* The offset is embedded inside the code after the plt entry */
4878 #ifdef MONO_ARCH_AOT_SUPPORTED
4879 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4881 g_assert_not_reached ();
4887 mono_create_ftnptr_malloc (guint8 *code)
4889 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4890 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4892 ftnptr->code = code;
4903 * mono_aot_register_jit_icall:
4905 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4906 * be called from mono_arch_init () during startup.
4909 mono_aot_register_jit_icall (const char *name, gpointer addr)
4911 /* No need for locking */
4912 if (!aot_jit_icall_hash)
4913 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
4914 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
4918 * load_function_full:
4920 * Load the function named NAME from the aot image.
4923 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
4927 int n_patches, pindex;
4930 guint32 info_offset;
4934 symbol = g_strdup_printf ("%s", name);
4935 find_amodule_symbol (amodule, symbol, (gpointer *)&code);
4938 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
4940 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
4944 symbol = g_strdup_printf ("%s_p", name);
4945 find_amodule_symbol (amodule, symbol, (gpointer *)&p);
4948 /* Nothing to patch */
4951 info_offset = *(guint32*)p;
4953 MonoTrampInfo *tinfo;
4954 guint32 code_size, uw_info_len, uw_offset;
4956 /* Construct a MonoTrampInfo from the data in the AOT image */
4958 p += sizeof (guint32);
4959 code_size = *(guint32*)p;
4960 p += sizeof (guint32);
4961 uw_offset = *(guint32*)p;
4962 uw_info = amodule->unwind_info + uw_offset;
4963 uw_info_len = decode_value (uw_info, &uw_info);
4965 tinfo = g_new0 (MonoTrampInfo, 1);
4966 tinfo->code = (guint8 *)code;
4967 tinfo->code_size = code_size;
4968 tinfo->uw_info_len = uw_info_len;
4970 tinfo->uw_info = uw_info;
4975 p = amodule->blob + info_offset;
4977 /* Similar to mono_aot_load_method () */
4979 n_patches = decode_value (p, &p);
4982 MonoJumpInfo *patches;
4985 mp = mono_mempool_new ();
4987 patches = load_patch_info (amodule, mp, n_patches, FALSE, &got_slots, p, &p);
4990 for (pindex = 0; pindex < n_patches; ++pindex) {
4991 MonoJumpInfo *ji = &patches [pindex];
4995 if (amodule->got [got_slots [pindex]])
4999 * When this code is executed, the runtime may not be initalized yet, so
5000 * resolve the patch info by hand.
5002 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
5003 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
5004 target = mono_get_lmf_addr;
5005 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint_noraise")) {
5006 target = mono_thread_force_interruption_checkpoint_noraise;
5007 } else if (!strcmp (ji->data.name, "mono_interruption_checkpoint_from_trampoline")) {
5008 target = mono_interruption_checkpoint_from_trampoline;
5009 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
5010 target = mono_exception_from_token;
5011 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
5012 target = mono_get_throw_exception ();
5013 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
5014 MonoTrampolineType tramp_type2 = (MonoTrampolineType)atoi (ji->data.name + strlen ("trampoline_func_"));
5015 target = (gpointer)mono_get_trampoline_func (tramp_type2);
5016 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
5017 /* atoll is needed because the the offset is unsigned */
5021 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
5022 g_assert (res == 1);
5023 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5024 target = mono_create_ftnptr_malloc ((guint8 *)target);
5025 } else if (!strcmp (ji->data.name, "debugger_agent_single_step_from_context")) {
5026 target = debugger_agent_single_step_from_context;
5027 } else if (!strcmp (ji->data.name, "debugger_agent_breakpoint_from_context")) {
5028 target = debugger_agent_breakpoint_from_context;
5029 } else if (!strcmp (ji->data.name, "throw_exception_addr")) {
5030 target = mono_get_throw_exception_addr ();
5031 } else if (strstr (ji->data.name, "generic_trampoline_")) {
5032 target = mono_aot_get_trampoline (ji->data.name);
5033 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
5034 /* Registered by mono_arch_init () */
5035 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
5037 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
5038 g_assert_not_reached ();
5042 /* Hopefully the code doesn't have patches which need method or
5045 target = mono_resolve_patch_target (NULL, NULL, (guint8 *)code, ji, FALSE, &error);
5046 mono_error_assert_ok (&error);
5050 amodule->got [got_slots [pindex]] = target;
5055 mono_mempool_destroy (mp);
5062 load_function (MonoAotModule *amodule, const char *name)
5064 return load_function_full (amodule, name, NULL);
5067 static MonoAotModule*
5068 get_mscorlib_aot_module (void)
5071 MonoAotModule *amodule;
5073 image = mono_defaults.corlib;
5075 amodule = (MonoAotModule *)image->aot_module;
5077 amodule = mscorlib_aot_module;
5083 no_trampolines (void)
5085 g_assert_not_reached ();
5089 * Return the trampoline identified by NAME from the mscorlib AOT file.
5090 * On ppc64, this returns a function descriptor.
5093 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5095 MonoAotModule *amodule = get_mscorlib_aot_module ();
5097 if (mono_llvm_only) {
5099 return no_trampolines;
5102 return mono_create_ftnptr_malloc ((guint8 *)load_function_full (amodule, name, out_tinfo));
5106 mono_aot_get_trampoline (const char *name)
5108 MonoTrampInfo *out_tinfo;
5111 code = mono_aot_get_trampoline_full (name, &out_tinfo);
5112 mono_tramp_info_register (out_tinfo, NULL);
5118 read_unwind_info (MonoAotModule *amodule, MonoTrampInfo *info, const char *symbol_name)
5120 gpointer symbol_addr;
5121 guint32 uw_offset, uw_info_len;
5124 find_amodule_symbol (amodule, symbol_name, &symbol_addr);
5129 uw_offset = *(guint32*)symbol_addr;
5130 uw_info = amodule->unwind_info + uw_offset;
5131 uw_info_len = decode_value (uw_info, &uw_info);
5133 info->uw_info_len = uw_info_len;
5135 info->uw_info = uw_info;
5137 info->uw_info = NULL;
5139 /* If successful return the address of the following data */
5140 return (guint32*)symbol_addr + 1;
5144 #include <mach/mach.h>
5146 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
5149 read_page_trampoline_uwinfo (MonoTrampInfo *info, int tramp_type, gboolean is_generic)
5151 char symbol_name [128];
5153 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5154 sprintf (symbol_name, "specific_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5155 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5156 sprintf (symbol_name, "rgctx_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5157 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
5158 sprintf (symbol_name, "imt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5159 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5160 sprintf (symbol_name, "gsharedvt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5162 g_assert_not_reached ();
5164 read_unwind_info (mono_defaults.corlib->aot_module, info, symbol_name);
5167 static unsigned char*
5168 get_new_trampoline_from_page (int tramp_type)
5170 MonoAotModule *amodule;
5172 TrampolinePage *page;
5175 vm_address_t addr, taddr;
5177 vm_prot_t prot, max_prot;
5178 int psize, specific_trampoline_size;
5179 unsigned char *code;
5181 specific_trampoline_size = 2 * sizeof (gpointer);
5183 mono_aot_page_lock ();
5184 page = trampoline_pages [tramp_type];
5185 if (page && page->trampolines < page->trampolines_end) {
5186 code = page->trampolines;
5187 page->trampolines += specific_trampoline_size;
5188 mono_aot_page_unlock ();
5191 mono_aot_page_unlock ();
5192 /* the trampoline template page is in the mscorlib module */
5193 image = mono_defaults.corlib;
5196 psize = MONO_AOT_TRAMP_PAGE_SIZE;
5198 amodule = image->aot_module;
5201 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5202 tpage = load_function (amodule, "specific_trampolines_page");
5203 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5204 tpage = load_function (amodule, "rgctx_trampolines_page");
5205 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
5206 tpage = load_function (amodule, "imt_trampolines_page");
5207 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5208 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
5210 g_error ("Incorrect tramp type for trampolines page");
5212 /*g_warning ("loaded trampolines page at %x", tpage);*/
5214 /* avoid the unlikely case of looping forever */
5217 while (page == NULL && count-- > 0) {
5218 MonoTrampInfo *gen_info, *sp_info;
5221 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
5222 * while the second will contain the trampolines.
5225 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
5226 } while (ret == KERN_ABORTED);
5227 if (ret != KERN_SUCCESS) {
5228 g_error ("Cannot allocate memory for trampolines: %d", ret);
5231 /*g_warning ("allocated trampoline double page at %x", addr);*/
5232 /* replace the second page with a remapped trampoline page */
5233 taddr = addr + psize;
5234 vm_deallocate (mach_task_self (), taddr, psize);
5235 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
5236 if (ret != KERN_SUCCESS) {
5237 /* someone else got the page, try again */
5238 vm_deallocate (mach_task_self (), addr, psize);
5241 /*g_warning ("remapped trampoline page at %x", taddr);*/
5243 mono_aot_page_lock ();
5244 page = trampoline_pages [tramp_type];
5245 /* some other thread already allocated, so use that to avoid wasting memory */
5246 if (page && page->trampolines < page->trampolines_end) {
5247 code = page->trampolines;
5248 page->trampolines += specific_trampoline_size;
5249 mono_aot_page_unlock ();
5250 vm_deallocate (mach_task_self (), addr, psize);
5251 vm_deallocate (mach_task_self (), taddr, psize);
5254 page = (TrampolinePage*)addr;
5255 page->next = trampoline_pages [tramp_type];
5256 trampoline_pages [tramp_type] = page;
5257 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
5258 page->trampolines_end = (void*)(taddr + psize - 64);
5259 code = page->trampolines;
5260 page->trampolines += specific_trampoline_size;
5261 mono_aot_page_unlock ();
5263 /* Register the generic part at the beggining of the trampoline page */
5264 gen_info = mono_tramp_info_create (NULL, (guint8*)taddr, amodule->info.tramp_page_code_offsets [tramp_type], NULL, NULL);
5265 read_page_trampoline_uwinfo (gen_info, tramp_type, TRUE);
5266 mono_tramp_info_register (gen_info, NULL);
5269 * Registering each specific trampoline produces a lot of
5270 * MonoJitInfo structures. Jump trampolines are also registered
5273 if (tramp_type != MONO_AOT_TRAMP_SPECIFIC) {
5274 /* Register the rest of the page as a single trampoline */
5275 sp_info = mono_tramp_info_create (NULL, code, page->trampolines_end - code, NULL, NULL);
5276 read_page_trampoline_uwinfo (sp_info, tramp_type, FALSE);
5277 mono_tramp_info_register (sp_info, NULL);
5281 g_error ("Cannot allocate more trampoline pages: %d", ret);
5286 static unsigned char*
5287 get_new_trampoline_from_page (int tramp_type)
5289 g_error ("Page trampolines not supported.");
5296 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
5301 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
5303 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5306 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5312 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
5317 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
5319 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5322 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5328 get_new_imt_trampoline_from_page (gpointer arg)
5333 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT_THUNK);
5335 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5337 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
5343 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
5348 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
5350 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5353 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5357 /* Return a given kind of trampoline */
5358 /* FIXME set unwind info for these trampolines */
5360 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
5363 MonoAotModule *amodule = get_mscorlib_aot_module ();
5364 int index, tramp_size;
5366 /* Currently, we keep all trampolines in the mscorlib AOT image */
5367 image = mono_defaults.corlib;
5369 *out_amodule = amodule;
5374 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5376 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5378 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
5379 g_error ("Ran out of trampolines of type %d in '%s' (limit %d)%s\n",
5380 tramp_type, image ? image->name : "mscorlib", amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
5382 index = amodule->trampoline_index [tramp_type] ++;
5386 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
5388 tramp_size = amodule->info.trampoline_size [tramp_type];
5391 *out_tramp_size = tramp_size;
5393 return amodule->trampolines [tramp_type] + (index * tramp_size);
5397 no_specific_trampoline (void)
5399 g_assert_not_reached ();
5403 * Return a specific trampoline from the AOT file.
5406 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5408 MonoAotModule *amodule;
5409 guint32 got_offset, tramp_size;
5410 guint8 *code, *tramp;
5411 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
5412 static gboolean inited;
5413 static guint32 num_trampolines;
5415 if (mono_llvm_only) {
5417 return no_specific_trampoline;
5424 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
5433 if (!generic_trampolines [tramp_type]) {
5436 symbol = mono_get_generic_trampoline_name (tramp_type);
5437 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
5441 tramp = (guint8 *)generic_trampolines [tramp_type];
5444 if (USE_PAGE_TRAMPOLINES) {
5445 code = (guint8 *)get_new_specific_trampoline_from_page (tramp, arg1);
5448 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
5450 amodule->got [got_offset] = tramp;
5451 amodule->got [got_offset + 1] = arg1;
5455 *code_len = tramp_size;
5461 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5463 MonoAotModule *amodule;
5467 if (USE_PAGE_TRAMPOLINES) {
5468 code = (guint8 *)get_new_rgctx_trampoline_from_page (addr, ctx);
5470 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
5472 amodule->got [got_offset] = ctx;
5473 amodule->got [got_offset + 1] = addr;
5476 /* The caller expects an ftnptr */
5477 return mono_create_ftnptr (mono_domain_get (), code);
5481 mono_aot_get_unbox_trampoline (MonoMethod *method)
5483 guint32 method_index = mono_metadata_token_index (method->token) - 1;
5484 MonoAotModule *amodule;
5486 guint32 *ut, *ut_end, *entry;
5487 int low, high, entry_index = 0;
5488 gpointer symbol_addr;
5489 MonoTrampInfo *tinfo;
5491 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
5492 method_index = find_aot_method (method, &amodule);
5493 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
5494 MonoMethod *shared = mini_get_shared_method_full (method, FALSE, FALSE);
5495 method_index = find_aot_method (shared, &amodule);
5497 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, TRUE)) {
5498 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
5499 method_index = find_aot_method (shared, &amodule);
5501 g_assert (method_index != 0xffffff);
5503 amodule = (MonoAotModule *)method->klass->image->aot_module;
5507 if (amodule->info.llvm_get_unbox_tramp) {
5508 gpointer (*get_tramp) (int) = (gpointer (*)(int))amodule->info.llvm_get_unbox_tramp;
5509 code = get_tramp (method_index);
5515 ut = amodule->unbox_trampolines;
5516 ut_end = amodule->unbox_trampolines_end;
5518 /* Do a binary search in the sorted table */
5521 high = (ut_end - ut);
5522 while (low < high) {
5523 entry_index = (low + high) / 2;
5524 entry = &ut [entry_index];
5525 if (entry [0] < method_index) {
5526 low = entry_index + 1;
5527 } else if (entry [0] > method_index) {
5534 code = get_call_table_entry (amodule->unbox_trampoline_addresses, entry_index);
5537 tinfo = mono_tramp_info_create (NULL, (guint8 *)code, 0, NULL, NULL);
5539 symbol_addr = read_unwind_info (amodule, tinfo, "unbox_trampoline_p");
5541 mono_tramp_info_free (tinfo);
5545 tinfo->code_size = *(guint32*)symbol_addr;
5546 mono_tramp_info_register (tinfo, NULL);
5548 /* The caller expects an ftnptr */
5549 return mono_create_ftnptr (mono_domain_get (), code);
5553 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5557 MonoAotModule *amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
5558 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
5559 static int count = 0;
5562 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
5563 static gpointer addr;
5567 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5570 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
5571 info = (void **)mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
5572 info [0] = GUINT_TO_POINTER (slot);
5573 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5574 code = mono_aot_get_static_rgctx_trampoline (info, addr);
5575 return mono_create_ftnptr (mono_domain_get (), code);
5578 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
5579 code = load_function ((MonoAotModule *)mono_defaults.corlib->aot_module, symbol);
5581 /* The caller expects an ftnptr */
5582 return mono_create_ftnptr (mono_domain_get (), code);
5588 g_assert_not_reached ();
5592 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5597 int i, index, real_count;
5598 MonoAotModule *amodule;
5601 return no_imt_thunk;
5604 for (i = 0; i < count; ++i) {
5605 MonoIMTCheckItem *item = imt_entries [i];
5607 if (item->is_equals)
5611 /* Save the entries into an array */
5612 buf = (void **)mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
5614 for (i = 0; i < count; ++i) {
5615 MonoIMTCheckItem *item = imt_entries [i];
5617 if (!item->is_equals)
5620 g_assert (item->key);
5622 buf [(index * 2)] = item->key;
5623 if (item->has_target_code) {
5624 gpointer *p = (gpointer *)mono_domain_alloc (domain, sizeof (gpointer));
5625 *p = item->value.target_code;
5626 buf [(index * 2) + 1] = p;
5628 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
5632 buf [(index * 2)] = NULL;
5633 buf [(index * 2) + 1] = fail_tramp;
5635 if (USE_PAGE_TRAMPOLINES) {
5636 code = get_new_imt_trampoline_from_page (buf);
5638 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK, 1, &amodule, &got_offset, NULL);
5640 amodule->got [got_offset] = buf;
5647 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5649 MonoAotModule *amodule;
5653 if (USE_PAGE_TRAMPOLINES) {
5654 code = (guint8 *)get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
5656 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
5658 amodule->got [got_offset] = arg;
5659 amodule->got [got_offset + 1] = addr;
5662 /* The caller expects an ftnptr */
5663 return mono_create_ftnptr (mono_domain_get (), code);
5667 * mono_aot_set_make_unreadable:
5669 * Set whenever to make all mmaped memory unreadable. In conjuction with a
5670 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
5673 mono_aot_set_make_unreadable (gboolean unreadable)
5677 make_unreadable = unreadable;
5679 if (make_unreadable && !inited) {
5680 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
5685 MonoAotModule *module;
5690 find_map (gpointer key, gpointer value, gpointer user_data)
5692 MonoAotModule *module = (MonoAotModule*)value;
5693 FindMapUserData *data = (FindMapUserData*)user_data;
5696 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
5697 data->module = module;
5700 static MonoAotModule*
5701 find_module_for_addr (void *ptr)
5703 FindMapUserData data;
5705 if (!make_unreadable)
5709 data.ptr = (guint8*)ptr;
5712 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
5719 * mono_aot_is_pagefault:
5721 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
5722 * within memory allocated by this module.
5725 mono_aot_is_pagefault (void *ptr)
5727 if (!make_unreadable)
5731 * Not signal safe, but SIGSEGV's are synchronous, and
5732 * this is only turned on by a MONO_DEBUG option.
5734 return find_module_for_addr (ptr) != NULL;
5738 * mono_aot_handle_pagefault:
5740 * Handle a pagefault caused by an unreadable page by making it readable again.
5743 mono_aot_handle_pagefault (void *ptr)
5745 #ifndef PLATFORM_WIN32
5746 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5750 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5751 g_assert (res == 0);
5762 mono_aot_init (void)
5767 mono_aot_cleanup (void)
5772 mono_aot_find_method_index (MonoMethod *method)
5774 g_assert_not_reached ();
5779 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
5784 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this)
5789 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
5794 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
5799 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5805 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5811 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5817 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5823 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5829 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
5835 mono_aot_get_plt_entry (guint8 *code)
5841 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
5847 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5852 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
5858 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5860 g_assert_not_reached ();
5866 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5868 g_assert_not_reached ();
5873 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5875 g_assert_not_reached ();
5880 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5882 g_assert_not_reached ();
5887 mono_aot_get_trampoline (const char *name)
5889 g_assert_not_reached ();
5894 mono_aot_get_unbox_trampoline (MonoMethod *method)
5896 g_assert_not_reached ();
5901 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5903 g_assert_not_reached ();
5908 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5910 g_assert_not_reached ();
5915 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5917 g_assert_not_reached ();
5922 mono_aot_set_make_unreadable (gboolean unreadable)
5927 mono_aot_is_pagefault (void *ptr)
5933 mono_aot_handle_pagefault (void *ptr)
5938 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
5940 g_assert_not_reached ();
5945 mono_aot_register_jit_icall (const char *name, gpointer addr)