3 * mono Ahead of Time compiler
6 * Dietmar Maurer (dietmar@ximian.com)
7 * Zoltan Varga (vargaz@gmail.com)
9 * (C) 2002 Ximian, Inc.
10 * Copyright 2003-2011 Novell, Inc.
11 * Copyright 2011 Xamarin, Inc.
12 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
16 #include <sys/types.h>
22 #ifdef HAVE_SYS_MMAN_H
31 #ifdef HAVE_EXECINFO_H
38 #ifdef HAVE_SYS_WAIT_H
39 #include <sys/wait.h> /* for WIFEXITED, WEXITSTATUS */
42 #include <mono/metadata/abi-details.h>
43 #include <mono/metadata/tabledefs.h>
44 #include <mono/metadata/class.h>
45 #include <mono/metadata/object.h>
46 #include <mono/metadata/tokentype.h>
47 #include <mono/metadata/appdomain.h>
48 #include <mono/metadata/debug-helpers.h>
49 #include <mono/metadata/assembly.h>
50 #include <mono/metadata/metadata-internals.h>
51 #include <mono/metadata/marshal.h>
52 #include <mono/metadata/gc-internals.h>
53 #include <mono/metadata/threads-types.h>
54 #include <mono/metadata/mono-endian.h>
55 #include <mono/utils/mono-logger-internals.h>
56 #include <mono/utils/mono-mmap.h>
57 #include <mono/utils/mono-compiler.h>
58 #include <mono/utils/mono-counters.h>
59 #include <mono/utils/mono-digest.h>
60 #include <mono/utils/mono-threads-coop.h>
63 #include "seq-points.h"
65 #include "debugger-agent.h"
66 #include "aot-compiler.h"
67 #include "jit-icalls.h"
72 #define ENABLE_AOT_CACHE
75 /* Number of got entries shared between the JIT and LLVM GOT */
76 #define N_COMMON_GOT_ENTRIES 10
78 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
79 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
80 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
87 typedef struct MonoAotModule {
89 /* Pointer to the Global Offset Table */
93 GHashTable *name_cache;
94 GHashTable *extra_methods;
95 /* Maps methods to their code */
96 GHashTable *method_to_code;
97 /* Maps pointers into the method info to the methods themselves */
98 GHashTable *method_ref_to_method;
99 MonoAssemblyName *image_names;
101 MonoAssembly *assembly;
102 MonoImage **image_table;
103 guint32 image_table_len;
104 gboolean out_of_date;
106 gboolean got_initializing;
109 guint8 *jit_code_start;
110 guint8 *jit_code_end;
111 guint8 *llvm_code_start;
112 guint8 *llvm_code_end;
116 /* Maps method indexes to their code */
118 /* Sorted array of method addresses */
119 gpointer *sorted_methods;
120 /* Method indexes for each method in sorted_methods */
121 int *sorted_method_indexes;
122 /* The length of the two tables above */
123 int sorted_methods_len;
124 guint32 *method_info_offsets;
125 guint32 *ex_info_offsets;
126 guint32 *class_info_offsets;
127 guint32 *got_info_offsets;
128 guint32 *llvm_got_info_offsets;
129 guint32 *methods_loaded;
130 guint16 *class_name_table;
131 guint32 *extra_method_table;
132 guint32 *extra_method_info_offsets;
133 guint32 *unbox_trampolines;
134 guint32 *unbox_trampolines_end;
135 guint32 *unbox_trampoline_addresses;
138 /* Points to the mono EH data created by LLVM */
139 guint8 *mono_eh_frame;
141 /* Points to the data tables if MONO_AOT_FILE_FLAG_SEPARATE_DATA is set */
142 gpointer tables [MONO_AOT_TABLE_NUM];
143 /* Points to the trampolines */
144 guint8 *trampolines [MONO_AOT_TRAMP_NUM];
145 /* The first unused trampoline of each kind */
146 guint32 trampoline_index [MONO_AOT_TRAMP_NUM];
148 gboolean use_page_trampolines;
150 MonoAotFileInfo info;
155 JitInfoMap *async_jit_info_table;
161 unsigned char *trampolines;
162 unsigned char *trampolines_end;
165 static GHashTable *aot_modules;
166 #define mono_aot_lock() mono_os_mutex_lock (&aot_mutex)
167 #define mono_aot_unlock() mono_os_mutex_unlock (&aot_mutex)
168 static mono_mutex_t aot_mutex;
171 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
172 * AOT modules registered by mono_aot_register_module ().
174 static GHashTable *static_aot_modules;
177 * Maps MonoJitInfo* to the aot module they belong to, this can be different
178 * from ji->method->klass->image's aot module for generic instances.
180 static GHashTable *ji_to_amodule;
183 * Whenever to AOT compile loaded assemblies on demand and store them in
186 static gboolean enable_aot_cache = FALSE;
188 static gboolean mscorlib_aot_loaded;
191 static gint32 mono_last_aot_method = -1;
193 static gboolean make_unreadable = FALSE;
194 static guint32 name_table_accesses = 0;
195 static guint32 n_pagefaults = 0;
197 /* Used to speed-up find_aot_module () */
198 static gsize aot_code_low_addr = (gssize)-1;
199 static gsize aot_code_high_addr = 0;
202 static gint32 async_jit_info_size;
204 static GHashTable *aot_jit_icall_hash;
207 #define USE_PAGE_TRAMPOLINES ((MonoAotModule*)mono_defaults.corlib->aot_module)->use_page_trampolines
209 #define USE_PAGE_TRAMPOLINES 0
212 #define mono_aot_page_lock() mono_os_mutex_lock (&aot_page_mutex)
213 #define mono_aot_page_unlock() mono_os_mutex_unlock (&aot_page_mutex)
214 static mono_mutex_t aot_page_mutex;
216 static MonoAotModule *mscorlib_aot_module;
218 /* Embedding API hooks to load the AOT data for AOT images compiled with MONO_AOT_FILE_FLAG_SEPARATE_DATA */
219 static MonoLoadAotDataFunc aot_data_load_func;
220 static MonoFreeAotDataFunc aot_data_free_func;
221 static gpointer aot_data_func_user_data;
224 init_plt (MonoAotModule *info);
227 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end);
230 init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context, MonoError *error);
233 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets);
236 amodule_lock (MonoAotModule *amodule)
238 mono_os_mutex_lock (&amodule->mutex);
242 amodule_unlock (MonoAotModule *amodule)
244 mono_os_mutex_unlock (&amodule->mutex);
250 * Load one of the images referenced by AMODULE. Returns NULL if the image is not
251 * found, and sets @error for what happened
254 load_image (MonoAotModule *amodule, int index, MonoError *error)
256 MonoAssembly *assembly;
257 MonoImageOpenStatus status;
259 g_assert (index < amodule->image_table_len);
263 if (amodule->image_table [index])
264 return amodule->image_table [index];
265 if (amodule->out_of_date) {
266 mono_error_set_bad_image_name (error, amodule->aot_name, "Image out of date");
270 assembly = mono_assembly_load (&amodule->image_names [index], amodule->assembly->basedir, &status);
272 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable because dependency %s is not found.", amodule->aot_name, amodule->image_names [index].name);
273 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);
274 amodule->out_of_date = TRUE;
278 if (strcmp (assembly->image->guid, amodule->image_guids [index])) {
279 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable (GUID of dependent assembly %s doesn't match (expected '%s', got '%s').", amodule->aot_name, amodule->image_names [index].name, amodule->image_guids [index], assembly->image->guid);
280 mono_error_set_bad_image_name (error, amodule->aot_name, "module is unusable (GUID of dependent assembly %s doesn't match (expected '%s', got '%s').", amodule->image_names [index].name, amodule->image_guids [index], assembly->image->guid);
281 amodule->out_of_date = TRUE;
285 amodule->image_table [index] = assembly->image;
286 return assembly->image;
290 decode_value (guint8 *ptr, guint8 **rptr)
295 if ((b & 0x80) == 0){
298 } else if ((b & 0x40) == 0){
299 len = ((b & 0x3f) << 8 | ptr [1]);
301 } else if (b != 0xff) {
302 len = ((b & 0x1f) << 24) |
309 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
315 //printf ("DECODE: %d.\n", len);
320 * mono_aot_get_offset:
322 * Decode an offset table emitted by emit_offset_table (), returning the INDEXth
326 mono_aot_get_offset (guint32 *table, int index)
328 int i, group, ngroups, index_entry_size;
329 int start_offset, offset, group_size;
330 guint8 *data_start, *p;
331 guint32 *index32 = NULL;
332 guint16 *index16 = NULL;
334 /* noffsets = table [0]; */
335 group_size = table [1];
337 index_entry_size = table [3];
338 group = index / group_size;
340 if (index_entry_size == 2) {
341 index16 = (guint16*)&table [4];
342 data_start = (guint8*)&index16 [ngroups];
343 p = data_start + index16 [group];
345 index32 = (guint32*)&table [4];
346 data_start = (guint8*)&index32 [ngroups];
347 p = data_start + index32 [group];
350 /* offset will contain the value of offsets [group * group_size] */
351 offset = start_offset = decode_value (p, &p);
352 for (i = group * group_size + 1; i <= index; ++i) {
353 offset += decode_value (p, &p);
356 //printf ("Offset lookup: %d -> %d, start=%d, p=%d\n", index, offset, start_offset, table [3 + group]);
362 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error);
365 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error);
368 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error);
370 static MonoGenericInst*
371 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
374 MonoType **type_argv;
375 MonoGenericInst *inst;
379 type_argc = decode_value (p, &p);
380 type_argv = g_new0 (MonoType*, type_argc);
382 for (i = 0; i < type_argc; ++i) {
383 MonoClass *pclass = decode_klass_ref (module, p, &p, error);
388 type_argv [i] = &pclass->byval_arg;
391 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
400 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf, MonoError *error)
408 argc = decode_value (p, &p);
411 ctx->class_inst = decode_generic_inst (module, p, &p, error);
412 if (!ctx->class_inst)
416 argc = decode_value (p, &p);
419 ctx->method_inst = decode_generic_inst (module, p, &p, error);
420 if (!ctx->method_inst)
429 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
432 MonoClass *klass = NULL, *eklass;
433 guint32 token, rank, idx;
438 reftype = decode_value (p, &p);
441 mono_error_set_bad_image_name (error, module->aot_name, "Decoding a null class ref");
446 case MONO_AOT_TYPEREF_TYPEDEF_INDEX:
447 idx = decode_value (p, &p);
448 image = load_image (module, 0, error);
451 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, error);
453 case MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE:
454 idx = decode_value (p, &p);
455 image = load_image (module, decode_value (p, &p), error);
458 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, error);
460 case MONO_AOT_TYPEREF_TYPESPEC_TOKEN:
461 token = decode_value (p, &p);
462 image = module->assembly->image;
464 mono_error_set_bad_image_name (error, module->aot_name, "No image associated with the aot module");
467 klass = mono_class_get_checked (image, token, error);
469 case MONO_AOT_TYPEREF_GINST: {
471 MonoGenericContext ctx;
474 gclass = decode_klass_ref (module, p, &p, error);
477 g_assert (mono_class_is_gtd (gclass));
479 memset (&ctx, 0, sizeof (ctx));
480 ctx.class_inst = decode_generic_inst (module, p, &p, error);
483 type = mono_class_inflate_generic_type_checked (&gclass->byval_arg, &ctx, error);
486 klass = mono_class_from_mono_type (type);
487 mono_metadata_free_type (type);
490 case MONO_AOT_TYPEREF_VAR: {
492 MonoGenericContainer *container = NULL;
493 gboolean has_constraint = decode_value (p, &p);
495 if (has_constraint) {
496 MonoClass *par_klass;
497 MonoType *gshared_constraint;
499 gshared_constraint = decode_type (module, p, &p, error);
500 if (!gshared_constraint)
503 par_klass = decode_klass_ref (module, p, &p, error);
507 t = mini_get_shared_gparam (&par_klass->byval_arg, gshared_constraint);
508 mono_metadata_free_type (gshared_constraint);
509 klass = mono_class_from_mono_type (t);
511 int type = decode_value (p, &p);
512 int num = decode_value (p, &p);
513 gboolean is_not_anonymous = decode_value (p, &p);
515 if (is_not_anonymous) {
516 gboolean is_method = decode_value (p, &p);
519 MonoMethod *method_def;
520 g_assert (type == MONO_TYPE_MVAR);
521 method_def = decode_resolve_method_ref (module, p, &p, error);
525 container = mono_method_get_generic_container (method_def);
527 MonoClass *class_def;
528 g_assert (type == MONO_TYPE_VAR);
529 class_def = decode_klass_ref (module, p, &p, error);
533 container = mono_class_try_get_generic_container (class_def); //FIXME is this a case for a try_get?
536 // We didn't decode is_method, so we have to infer it from type enum.
537 container = get_anonymous_container_for_image (module->assembly->image, type == MONO_TYPE_MVAR);
540 t = g_new0 (MonoType, 1);
541 t->type = (MonoTypeEnum)type;
542 if (is_not_anonymous) {
543 t->data.generic_param = mono_generic_container_get_param (container, num);
546 MonoGenericParam *par = (MonoGenericParam*)mono_image_alloc0 (module->assembly->image, sizeof (MonoGenericParamFull));
547 par->owner = container;
549 t->data.generic_param = par;
550 ((MonoGenericParamFull*)par)->info.name = make_generic_name_string (module->assembly->image, num);
552 // FIXME: Maybe use types directly to avoid
553 // the overhead of creating MonoClass-es
554 klass = mono_class_from_mono_type (t);
560 case MONO_AOT_TYPEREF_ARRAY:
562 rank = decode_value (p, &p);
563 eklass = decode_klass_ref (module, p, &p, error);
566 klass = mono_array_class_get (eklass, rank);
568 case MONO_AOT_TYPEREF_PTR: {
571 t = decode_type (module, p, &p, error);
574 klass = mono_class_from_mono_type (t);
578 case MONO_AOT_TYPEREF_BLOB_INDEX: {
579 guint32 offset = decode_value (p, &p);
582 p2 = module->blob + offset;
583 klass = decode_klass_ref (module, p2, &p2, error);
587 mono_error_set_bad_image_name (error, module->aot_name, "Invalid klass reftype %d", reftype);
590 //printf ("BLA: %s\n", mono_type_full_name (&klass->byval_arg));
595 static MonoClassField*
596 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
599 MonoClass *klass = decode_klass_ref (module, buf, &buf, &error);
604 mono_error_cleanup (&error); /* FIXME don't swallow the error */
608 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
612 return mono_class_get_field (klass, token);
616 * Parse a MonoType encoded by encode_type () in aot-compiler.c. Return malloc-ed
620 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
625 t = (MonoType *)g_malloc0 (sizeof (MonoType));
629 if (*p == MONO_TYPE_PINNED) {
632 } else if (*p == MONO_TYPE_BYREF) {
640 t->type = (MonoTypeEnum)*p;
645 case MONO_TYPE_BOOLEAN:
659 case MONO_TYPE_STRING:
660 case MONO_TYPE_OBJECT:
661 case MONO_TYPE_TYPEDBYREF:
663 case MONO_TYPE_VALUETYPE:
664 case MONO_TYPE_CLASS:
665 t->data.klass = decode_klass_ref (module, p, &p, error);
669 case MONO_TYPE_SZARRAY:
670 t->data.klass = decode_klass_ref (module, p, &p, error);
676 t->data.type = decode_type (module, p, &p, error);
680 case MONO_TYPE_GENERICINST: {
682 MonoGenericContext ctx;
686 gclass = decode_klass_ref (module, p, &p, error);
689 g_assert (mono_class_is_gtd (gclass));
691 memset (&ctx, 0, sizeof (ctx));
692 ctx.class_inst = decode_generic_inst (module, p, &p, error);
695 type = mono_class_inflate_generic_type_checked (&gclass->byval_arg, &ctx, error);
698 klass = mono_class_from_mono_type (type);
699 t->data.generic_class = mono_class_get_generic_class (klass);
702 case MONO_TYPE_ARRAY: {
703 MonoArrayType *array;
706 // FIXME: memory management
707 array = g_new0 (MonoArrayType, 1);
708 array->eklass = decode_klass_ref (module, p, &p, error);
711 array->rank = decode_value (p, &p);
712 array->numsizes = decode_value (p, &p);
715 array->sizes = (int *)g_malloc0 (sizeof (int) * array->numsizes);
716 for (i = 0; i < array->numsizes; ++i)
717 array->sizes [i] = decode_value (p, &p);
719 array->numlobounds = decode_value (p, &p);
720 if (array->numlobounds)
721 array->lobounds = (int *)g_malloc0 (sizeof (int) * array->numlobounds);
722 for (i = 0; i < array->numlobounds; ++i)
723 array->lobounds [i] = decode_value (p, &p);
724 t->data.array = array;
728 case MONO_TYPE_MVAR: {
729 MonoClass *klass = decode_klass_ref (module, p, &p, error);
732 t->data.generic_param = klass->byval_arg.data.generic_param;
736 mono_error_set_bad_image_name (error, module->aot_name, "Invalid encoded type %d", t->type);
748 // FIXME: Error handling, memory management
750 static MonoMethodSignature*
751 decode_signature_with_target (MonoAotModule *module, MonoMethodSignature *target, guint8 *buf, guint8 **endbuf)
754 MonoMethodSignature *sig;
756 int i, gen_param_count = 0, param_count, call_conv;
758 gboolean hasthis, explicit_this, has_gen_params;
762 has_gen_params = (flags & 0x10) != 0;
763 hasthis = (flags & 0x20) != 0;
764 explicit_this = (flags & 0x40) != 0;
765 call_conv = flags & 0x0F;
768 gen_param_count = decode_value (p, &p);
769 param_count = decode_value (p, &p);
770 if (target && param_count != target->param_count)
772 sig = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + param_count * sizeof (MonoType *));
773 sig->param_count = param_count;
774 sig->sentinelpos = -1;
775 sig->hasthis = hasthis;
776 sig->explicit_this = explicit_this;
777 sig->call_convention = call_conv;
778 sig->generic_param_count = gen_param_count;
779 sig->ret = decode_type (module, p, &p, &error);
782 for (i = 0; i < param_count; ++i) {
783 if (*p == MONO_TYPE_SENTINEL) {
784 g_assert (sig->call_convention == MONO_CALL_VARARG);
785 sig->sentinelpos = i;
788 sig->params [i] = decode_type (module, p, &p, &error);
789 if (!sig->params [i])
793 if (sig->call_convention == MONO_CALL_VARARG && sig->sentinelpos == -1)
794 sig->sentinelpos = sig->param_count;
800 mono_error_cleanup (&error); /* FIXME don't swallow the error */
805 static MonoMethodSignature*
806 decode_signature (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
808 return decode_signature_with_target (module, NULL, buf, endbuf);
812 sig_matches_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
814 MonoMethodSignature *sig;
818 sig = decode_signature_with_target (module, mono_method_signature (target), p, &p);
819 res = sig && mono_metadata_signature_equal (mono_method_signature (target), sig);
825 /* Stores information returned by decode_method_ref () */
830 gboolean no_aot_trampoline;
834 * decode_method_ref_with_target:
836 * Decode a method reference, storing the image/token into a MethodRef structure.
837 * This avoids loading metadata for the method if the caller does not need it. If the method has
838 * no token, then it is loaded from metadata and ref->method is set to the method instance.
839 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method
840 * couldn't resolve to TARGET, and return FALSE.
841 * There are some kinds of method references which only support a non-null TARGET.
842 * This means that its not possible to decode this into a method, only to check
843 * that the method reference matches a given method. This is normally not a problem
844 * as these wrappers only occur in the extra_methods table, where we already have
845 * a method we want to lookup.
847 * If there was a decoding error, we return FALSE and set @error
850 decode_method_ref_with_target (MonoAotModule *module, MethodRef *ref, MonoMethod *target, guint8 *buf, guint8 **endbuf, MonoError *error)
852 guint32 image_index, value;
853 MonoImage *image = NULL;
856 memset (ref, 0, sizeof (MethodRef));
859 value = decode_value (p, &p);
860 image_index = value >> 24;
862 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
863 ref->no_aot_trampoline = TRUE;
864 value = decode_value (p, &p);
865 image_index = value >> 24;
868 if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
869 if (target && target->wrapper_type) {
874 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
876 guint32 wrapper_type;
878 wrapper_type = decode_value (p, &p);
880 if (target && target->wrapper_type != wrapper_type)
884 image = mono_defaults.corlib;
886 switch (wrapper_type) {
887 #ifndef DISABLE_REMOTING
888 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
889 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
892 mono_class_init (m->klass);
896 ref->method = mono_marshal_get_remoting_invoke_with_check (m);
899 case MONO_WRAPPER_PROXY_ISINST: {
900 MonoClass *klass = decode_klass_ref (module, p, &p, error);
903 ref->method = mono_marshal_get_proxy_cancast (klass);
906 case MONO_WRAPPER_LDFLD:
907 case MONO_WRAPPER_LDFLDA:
908 case MONO_WRAPPER_STFLD: {
909 MonoClass *klass = decode_klass_ref (module, p, &p, error);
912 if (wrapper_type == MONO_WRAPPER_LDFLD)
913 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
914 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
915 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
916 else if (wrapper_type == MONO_WRAPPER_STFLD)
917 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
919 mono_error_set_bad_image_name (error, module->aot_name, "Unknown AOT wrapper type %d", wrapper_type);
925 case MONO_WRAPPER_ALLOC: {
926 int atype = decode_value (p, &p);
927 ManagedAllocatorVariant variant =
928 mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS ?
929 MANAGED_ALLOCATOR_SLOW_PATH : MANAGED_ALLOCATOR_REGULAR;
931 ref->method = mono_gc_get_managed_allocator_by_type (atype, variant);
932 /* Try to fallback to the slow path version */
933 if (!ref->method && variant == MANAGED_ALLOCATOR_REGULAR)
934 ref->method = mono_gc_get_managed_allocator_by_type (atype, MANAGED_ALLOCATOR_SLOW_PATH);
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, error);
1220 if (!mono_error_ok (error))
1225 g_assert_not_reached ();
1227 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1228 image_index = decode_value (p, &p);
1229 ref->token = decode_value (p, &p);
1231 image = load_image (module, image_index, error);
1234 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1236 MonoGenericContext ctx;
1239 * These methods do not have a token which resolves them, so we
1240 * resolve them immediately.
1242 klass = decode_klass_ref (module, p, &p, error);
1246 if (target && target->klass != klass)
1249 image_index = decode_value (p, &p);
1250 ref->token = decode_value (p, &p);
1252 image = load_image (module, image_index, error);
1256 ref->method = mono_get_method_checked (image, ref->token, NULL, NULL, error);
1261 memset (&ctx, 0, sizeof (ctx));
1263 if (FALSE && mono_class_is_ginst (klass)) {
1264 ctx.class_inst = mono_class_get_generic_class (klass)->context.class_inst;
1265 ctx.method_inst = NULL;
1267 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, error);
1272 memset (&ctx, 0, sizeof (ctx));
1274 if (!decode_generic_context (module, &ctx, p, &p, error))
1277 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, error);
1281 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1285 klass = decode_klass_ref (module, p, &p, error);
1288 method_type = decode_value (p, &p);
1289 switch (method_type) {
1291 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1294 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1297 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1300 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1303 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1306 mono_error_set_bad_image_name (error, module->aot_name, "Invalid METHODREF_ARRAY method type %d", method_type);
1310 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1311 image_index = decode_value (p, &p);
1312 value = decode_value (p, &p);
1315 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1317 image = load_image (module, image_index, error);
1330 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf, MonoError *error)
1332 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf, error);
1336 * decode_resolve_method_ref_with_target:
1338 * Similar to decode_method_ref, but resolve and return the method itself.
1341 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf, MonoError *error)
1347 if (!decode_method_ref_with_target (module, &ref, target, buf, endbuf, error))
1352 mono_error_set_bad_image_name (error, module->aot_name, "No image found for methodref with target");
1355 return mono_get_method_checked (ref.image, ref.token, NULL, NULL, error);
1359 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
1361 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf, error);
1364 #ifdef ENABLE_AOT_CACHE
1370 * - Add options for controlling the cache size
1371 * - Handle full cache by deleting old assemblies lru style
1372 * - Maybe add a threshold after an assembly is AOT compiled
1373 * - Add options for enabling this for specific main assemblies
1376 /* The cache directory */
1377 static char *cache_dir;
1379 /* The number of assemblies AOTed in this run */
1380 static int cache_count;
1382 /* Whenever to AOT in-process */
1383 static gboolean in_process;
1386 collect_assemblies (gpointer data, gpointer user_data)
1388 MonoAssembly *ass = data;
1389 GSList **l = user_data;
1391 *l = g_slist_prepend (*l, ass);
1394 #define SHA1_DIGEST_LENGTH 20
1397 * get_aot_config_hash:
1399 * Return a hash for all the version information an AOT module depends on.
1401 static G_GNUC_UNUSED char*
1402 get_aot_config_hash (MonoAssembly *assembly)
1405 GSList *l, *assembly_list = NULL;
1408 guint8 digest [SHA1_DIGEST_LENGTH];
1411 build_info = mono_get_runtime_build_info ();
1413 s = g_string_new (build_info);
1415 mono_assembly_foreach (collect_assemblies, &assembly_list);
1418 * The assembly list includes the current assembly as well, no need
1421 for (l = assembly_list; l; l = l->next) {
1422 MonoAssembly *ass = l->data;
1424 g_string_append (s, "_");
1425 g_string_append (s, ass->aname.name);
1426 g_string_append (s, "_");
1427 g_string_append (s, ass->image->guid);
1430 for (i = 0; i < s->len; ++i) {
1431 if (!isalnum (s->str [i]) && s->str [i] != '-')
1435 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1437 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1438 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1439 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1441 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1443 g_string_free (s, TRUE);
1449 aot_cache_init (void)
1453 enable_aot_cache = TRUE;
1458 * aot_cache_load_module:
1460 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1463 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1465 MonoAotCacheConfig *config;
1467 char *fname, *tmp2, *aot_options, *failure_fname;
1479 if (image_is_dynamic (assembly->image))
1482 /* Check in the list of assemblies enabled for aot caching */
1483 config = mono_get_aot_cache_config ();
1487 MonoDomain *domain = mono_domain_get ();
1488 MonoAssembly *entry_assembly = domain->entry_assembly;
1490 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1491 for (l = config->apps; l; l = l->next) {
1494 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1502 for (l = config->assemblies; l; l = l->next) {
1505 if (!strcmp (assembly->aname.name, n))
1515 home = g_get_home_dir ();
1518 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1519 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1520 g_mkdir_with_parents (cache_dir, 0777);
1524 * The same assembly can be used in multiple configurations, i.e. multiple
1525 * versions of the runtime, with multiple versions of dependent assemblies etc.
1526 * To handle this, we compute a version string containing all this information, hash it,
1527 * and use the hash as a filename suffix.
1529 hash = get_aot_config_hash (assembly);
1531 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, MONO_SOLIB_EXT);
1532 fname = g_build_filename (cache_dir, tmp2, NULL);
1536 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1537 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1540 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1544 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1546 * Can't AOT this during startup, so we AOT it when called later from
1547 * mono_aot_get_method ().
1551 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1553 /* Only AOT one assembly per run to avoid slowing down execution too much */
1554 if (cache_count > 0)
1558 /* Check for previous failure */
1559 failure_fname = g_strdup_printf ("%s.failure", fname);
1560 failure_file = fopen (failure_fname, "r");
1562 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1563 g_free (failure_fname);
1566 g_free (failure_fname);
1567 fclose (failure_file);
1570 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1573 * We need to invoke the AOT compiler here. There are multiple approaches:
1574 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1575 * its hard to make the new process load the same set of assemblies.
1576 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1578 * - fork a new process and do the work there.
1581 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1582 /* Maybe due this in another thread ? */
1583 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1585 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1586 failure_fname = g_strdup_printf ("%s.failure", fname);
1587 failure_file = fopen (failure_fname, "a+");
1588 fclose (failure_file);
1589 g_free (failure_fname);
1591 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1595 * - Avoid waiting for the aot process to finish ?
1596 * (less overhead, but multiple processes could aot the same assembly at the same time)
1605 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1606 logfile = fopen (logfile_name, "a+");
1607 g_free (logfile_name);
1609 dup2 (fileno (logfile), 1);
1610 dup2 (fileno (logfile), 2);
1612 aot_options = g_strdup_printf ("outfile=%s", fname);
1613 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1621 waitpid (pid, &exit_status, 0);
1622 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1623 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1625 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1629 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1637 aot_cache_init (void)
1642 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1650 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1654 guint16 *table, *entry;
1657 char *symbol = (char*)name;
1660 symbol = g_strdup_printf ("_%s", name);
1663 /* The first entry points to the hash */
1664 table = (guint16 *)globals [0];
1667 table_size = table [0];
1670 hash = mono_metadata_str_hash (symbol) % table_size;
1672 entry = &table [hash * 2];
1674 /* Search the hash for the index into the globals table */
1676 while (entry [0] != 0) {
1677 guint32 index = entry [0] - 1;
1678 guint32 next = entry [1];
1680 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1682 if (!strcmp (globals [index * 2], symbol)) {
1683 global_index = index;
1688 entry = &table [next * 2];
1694 if (global_index != -1)
1695 *value = globals [global_index * 2 + 1];
1702 char *err = mono_dl_symbol (module, name, value);
1710 find_amodule_symbol (MonoAotModule *amodule, const char *name, gpointer *value)
1712 g_assert (!(amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY));
1714 find_symbol (amodule->sofile, amodule->globals, name, value);
1718 mono_install_load_aot_data_hook (MonoLoadAotDataFunc load_func, MonoFreeAotDataFunc free_func, gpointer user_data)
1720 aot_data_load_func = load_func;
1721 aot_data_free_func = free_func;
1722 aot_data_func_user_data = user_data;
1725 /* Load the separate aot data file for ASSEMBLY */
1727 open_aot_data (MonoAssembly *assembly, MonoAotFileInfo *info, void **ret_handle)
1733 if (aot_data_load_func) {
1734 data = aot_data_load_func (assembly, info->datafile_size, aot_data_func_user_data, ret_handle);
1740 * Use <assembly name>.aotdata as the default implementation if no callback is given
1742 filename = g_strdup_printf ("%s.aotdata", assembly->image->name);
1743 map = mono_file_map_open (filename);
1745 data = mono_file_map (info->datafile_size, MONO_MMAP_READ, mono_file_map_fd (map), 0, ret_handle);
1752 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, guint8 *blob, char **out_msg)
1756 gboolean usable = TRUE;
1757 gboolean full_aot, safepoints;
1758 guint32 excluded_cpu_optimizations;
1760 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1761 msg = g_strdup_printf ("doesn't match assembly");
1765 build_info = mono_get_runtime_build_info ();
1766 if (strlen ((const char *)info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1767 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1770 g_free (build_info);
1772 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1774 if (mono_aot_only && !full_aot) {
1775 msg = g_strdup_printf ("not compiled with --aot=full");
1778 if (!mono_aot_only && full_aot) {
1779 msg = g_strdup_printf ("compiled with --aot=full");
1782 if (mono_llvm_only && !(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1783 msg = g_strdup_printf ("not compiled with --aot=llvmonly");
1786 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1787 msg = g_strdup_printf ("not compiled for debugging");
1791 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1792 if (info->opts & excluded_cpu_optimizations) {
1793 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1797 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1798 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1802 if (info->gc_name_index != -1) {
1803 char *gc_name = (char*)&blob [info->gc_name_index];
1804 const char *current_gc_name = mono_gc_get_gc_name ();
1806 if (strcmp (current_gc_name, gc_name) != 0) {
1807 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1812 safepoints = info->flags & MONO_AOT_FILE_FLAG_SAFEPOINTS;
1814 if (!safepoints && mono_threads_is_coop_enabled ()) {
1815 msg = g_strdup_printf ("not compiled with safepoints");
1824 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1827 get_call_table_entry (void *table, int index)
1829 #if defined(TARGET_ARM)
1834 ins_addr = (guint32*)table + index;
1836 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1838 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1839 return (char*)ins_addr + (offset * 2) + 8 + 1;
1841 offset = (((int)ins & 0xffffff) << 8) >> 8;
1842 return (char*)ins_addr + (offset * 4) + 8;
1844 #elif defined(TARGET_ARM64)
1845 return mono_arch_get_call_target ((guint8*)table + (index * 4) + 4);
1846 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1847 /* The callee expects an ip which points after the call */
1848 return mono_arch_get_call_target ((guint8*)table + (index * 5) + 5);
1850 g_assert_not_reached ();
1858 * Initialize the shared got entries for AMODULE.
1861 init_amodule_got (MonoAotModule *amodule)
1865 MonoJumpInfo *patches;
1866 guint32 got_offsets [128];
1870 /* These can't be initialized in load_aot_module () */
1871 if (amodule->shared_got [0] || amodule->got_initializing)
1874 amodule->got_initializing = TRUE;
1876 mp = mono_mempool_new ();
1877 npatches = amodule->info.nshared_got_entries;
1878 for (i = 0; i < npatches; ++i)
1879 got_offsets [i] = i;
1880 patches = decode_patches (amodule, mp, npatches, FALSE, got_offsets);
1882 for (i = 0; i < npatches; ++i) {
1885 if (ji->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR && !mono_gc_is_moving ()) {
1886 amodule->shared_got [i] = NULL;
1887 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_START && !mono_gc_is_moving ()) {
1888 amodule->shared_got [i] = NULL;
1889 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_BITS && !mono_gc_is_moving ()) {
1890 amodule->shared_got [i] = NULL;
1891 } else if (ji->type == MONO_PATCH_INFO_IMAGE) {
1892 amodule->shared_got [i] = amodule->assembly->image;
1893 } else if (ji->type == MONO_PATCH_INFO_MSCORLIB_GOT_ADDR) {
1894 if (mono_defaults.corlib) {
1895 MonoAotModule *mscorlib_amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
1897 if (mscorlib_amodule)
1898 amodule->shared_got [i] = mscorlib_amodule->got;
1900 amodule->shared_got [i] = amodule->got;
1902 } else if (ji->type == MONO_PATCH_INFO_AOT_MODULE) {
1903 amodule->shared_got [i] = amodule;
1905 amodule->shared_got [i] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, ji, FALSE, &error);
1906 mono_error_assert_ok (&error);
1911 for (i = 0; i < npatches; ++i)
1912 amodule->got [i] = amodule->shared_got [i];
1914 if (amodule->llvm_got) {
1915 for (i = 0; i < npatches; ++i)
1916 amodule->llvm_got [i] = amodule->shared_got [i];
1919 mono_mempool_destroy (mp);
1923 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1925 char *aot_name, *found_aot_name;
1926 MonoAotModule *amodule;
1928 gboolean usable = TRUE;
1929 char *version_symbol = NULL;
1931 gpointer *globals = NULL;
1932 MonoAotFileInfo *info = NULL;
1934 gboolean do_load_image = TRUE;
1935 int align_double, align_int64;
1936 guint8 *aot_data = NULL;
1938 if (mono_compile_aot)
1941 if (assembly->image->aot_module)
1943 * Already loaded. This can happen because the assembly loading code might invoke
1944 * the assembly load hooks multiple times for the same assembly.
1948 if (image_is_dynamic (assembly->image) || assembly->ref_only)
1952 if (static_aot_modules)
1953 info = (MonoAotFileInfo *)g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1960 found_aot_name = NULL;
1963 /* Statically linked AOT module */
1964 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1965 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.", aot_name);
1966 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1967 globals = (void **)info->globals;
1973 if (enable_aot_cache)
1974 sofile = aot_cache_load_module (assembly, &aot_name);
1976 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
1978 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1980 found_aot_name = g_strdup (aot_name);
1982 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' not found: %s", aot_name, err);
1988 char *basename = g_path_get_basename (assembly->image->name);
1989 aot_name = g_strdup_printf ("%s/mono/aot-cache/%s/%s%s", mono_assembly_getrootdir(), MONO_ARCHITECTURE, basename, MONO_SOLIB_EXT);
1991 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1993 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' not found: %s", aot_name, err);
2001 for (l = mono_aot_paths; l; l = l->next) {
2002 char *path = l->data;
2004 char *basename = g_path_get_basename (assembly->image->name);
2005 aot_name = g_strdup_printf ("%s/%s%s", path, basename, MONO_SOLIB_EXT);
2006 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
2008 found_aot_name = g_strdup (aot_name);
2010 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' not found: %s", aot_name, err);
2020 if (mono_aot_only && assembly->image->tables [MONO_TABLE_METHOD].rows) {
2021 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
2022 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
2030 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
2031 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
2034 // Copy aotid to MonoImage
2035 memcpy(&assembly->image->aotid, info->aotid, 16);
2037 if (version_symbol) {
2038 /* Old file format */
2039 version = atoi (version_symbol);
2042 version = info->version;
2045 if (version != MONO_AOT_FILE_VERSION) {
2046 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
2052 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2053 aot_data = open_aot_data (assembly, info, &handle);
2055 blob = aot_data + info->table_offsets [MONO_AOT_TABLE_BLOB];
2057 blob = (guint8 *)info->blob;
2060 usable = check_usable (assembly, info, blob, &msg);
2064 if (mono_aot_only) {
2065 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", found_aot_name, msg);
2067 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.", found_aot_name, msg);
2070 g_free (found_aot_name);
2072 mono_dl_close (sofile);
2073 assembly->image->aot_module = NULL;
2078 align_double = MONO_ABI_ALIGNOF (double);
2079 align_int64 = MONO_ABI_ALIGNOF (gint64);
2080 g_assert (info->double_align == align_double);
2081 g_assert (info->long_align == align_int64);
2082 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
2084 amodule = g_new0 (MonoAotModule, 1);
2085 amodule->aot_name = found_aot_name;
2086 amodule->assembly = assembly;
2088 memcpy (&amodule->info, info, sizeof (*info));
2090 amodule->got = (void **)amodule->info.jit_got;
2091 amodule->llvm_got = (void **)amodule->info.llvm_got;
2092 amodule->globals = globals;
2093 amodule->sofile = sofile;
2094 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
2095 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2096 amodule->shared_got = g_new0 (gpointer, info->nshared_got_entries);
2098 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2099 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
2100 amodule->tables [i] = aot_data + info->table_offsets [i];
2103 mono_os_mutex_init_recursive (&amodule->mutex);
2105 /* Read image table */
2107 guint32 table_len, i;
2110 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA)
2111 table = amodule->tables [MONO_AOT_TABLE_IMAGE_TABLE];
2113 table = (char *)info->image_table;
2116 table_len = *(guint32*)table;
2117 table += sizeof (guint32);
2118 amodule->image_table = g_new0 (MonoImage*, table_len);
2119 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
2120 amodule->image_guids = g_new0 (char*, table_len);
2121 amodule->image_table_len = table_len;
2122 for (i = 0; i < table_len; ++i) {
2123 MonoAssemblyName *aname = &(amodule->image_names [i]);
2125 aname->name = g_strdup (table);
2126 table += strlen (table) + 1;
2127 amodule->image_guids [i] = g_strdup (table);
2128 table += strlen (table) + 1;
2130 aname->culture = g_strdup (table);
2131 table += strlen (table) + 1;
2132 memcpy (aname->public_key_token, table, strlen (table) + 1);
2133 table += strlen (table) + 1;
2135 table = (char *)ALIGN_PTR_TO (table, 8);
2136 aname->flags = *(guint32*)table;
2138 aname->major = *(guint32*)table;
2140 aname->minor = *(guint32*)table;
2142 aname->build = *(guint32*)table;
2144 aname->revision = *(guint32*)table;
2149 amodule->jit_code_start = (guint8 *)info->jit_code_start;
2150 amodule->jit_code_end = (guint8 *)info->jit_code_end;
2151 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2152 amodule->blob = amodule->tables [MONO_AOT_TABLE_BLOB];
2153 amodule->method_info_offsets = amodule->tables [MONO_AOT_TABLE_METHOD_INFO_OFFSETS];
2154 amodule->ex_info_offsets = amodule->tables [MONO_AOT_TABLE_EX_INFO_OFFSETS];
2155 amodule->class_info_offsets = amodule->tables [MONO_AOT_TABLE_CLASS_INFO_OFFSETS];
2156 amodule->class_name_table = amodule->tables [MONO_AOT_TABLE_CLASS_NAME];
2157 amodule->extra_method_table = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_TABLE];
2158 amodule->extra_method_info_offsets = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS];
2159 amodule->got_info_offsets = amodule->tables [MONO_AOT_TABLE_GOT_INFO_OFFSETS];
2160 amodule->llvm_got_info_offsets = amodule->tables [MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS];
2162 amodule->blob = info->blob;
2163 amodule->method_info_offsets = (guint32 *)info->method_info_offsets;
2164 amodule->ex_info_offsets = (guint32 *)info->ex_info_offsets;
2165 amodule->class_info_offsets = (guint32 *)info->class_info_offsets;
2166 amodule->class_name_table = (guint16 *)info->class_name_table;
2167 amodule->extra_method_table = (guint32 *)info->extra_method_table;
2168 amodule->extra_method_info_offsets = (guint32 *)info->extra_method_info_offsets;
2169 amodule->got_info_offsets = info->got_info_offsets;
2170 amodule->llvm_got_info_offsets = info->llvm_got_info_offsets;
2172 amodule->unbox_trampolines = (guint32 *)info->unbox_trampolines;
2173 amodule->unbox_trampolines_end = (guint32 *)info->unbox_trampolines_end;
2174 amodule->unbox_trampoline_addresses = (guint32 *)info->unbox_trampoline_addresses;
2175 amodule->unwind_info = (guint8 *)info->unwind_info;
2176 amodule->mem_begin = amodule->jit_code_start;
2177 amodule->mem_end = (guint8 *)info->mem_end;
2178 amodule->plt = (guint8 *)info->plt;
2179 amodule->plt_end = (guint8 *)info->plt_end;
2180 amodule->mono_eh_frame = (guint8 *)info->mono_eh_frame;
2181 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = (guint8 *)info->specific_trampolines;
2182 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = (guint8 *)info->static_rgctx_trampolines;
2183 amodule->trampolines [MONO_AOT_TRAMP_IMT] = (guint8 *)info->imt_trampolines;
2184 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = (guint8 *)info->gsharedvt_arg_trampolines;
2186 if (!strcmp (assembly->aname.name, "mscorlib"))
2187 mscorlib_aot_module = amodule;
2189 /* Compute method addresses */
2190 amodule->methods = (void **)g_malloc0 (amodule->info.nmethods * sizeof (gpointer));
2191 for (i = 0; i < amodule->info.nmethods; ++i) {
2194 if (amodule->info.llvm_get_method) {
2195 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2197 addr = get_method (i);
2200 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2201 if (!addr && amodule->info.method_addresses) {
2202 addr = get_call_table_entry (amodule->info.method_addresses, i);
2204 if (addr == amodule->info.method_addresses)
2208 amodule->methods [i] = GINT_TO_POINTER (-1);
2210 amodule->methods [i] = addr;
2213 if (make_unreadable) {
2214 #ifndef TARGET_WIN32
2216 guint8 *page_start, *page_end;
2219 addr = amodule->mem_begin;
2221 len = amodule->mem_end - amodule->mem_begin;
2223 /* Round down in both directions to avoid modifying data which is not ours */
2224 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2225 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
2226 if (page_end > page_start) {
2227 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
2228 g_assert (err == 0);
2233 /* Compute the boundaries of LLVM code */
2234 if (info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM)
2235 compute_llvm_code_range (amodule, &amodule->llvm_code_start, &amodule->llvm_code_end);
2239 if (amodule->jit_code_start) {
2240 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->jit_code_start);
2241 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->jit_code_end);
2243 if (amodule->llvm_code_start) {
2244 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->llvm_code_start);
2245 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->llvm_code_end);
2248 g_hash_table_insert (aot_modules, assembly, amodule);
2251 if (amodule->jit_code_start)
2252 mono_jit_info_add_aot_module (assembly->image, amodule->jit_code_start, amodule->jit_code_end);
2253 if (amodule->llvm_code_start)
2254 mono_jit_info_add_aot_module (assembly->image, amodule->llvm_code_start, amodule->llvm_code_end);
2256 assembly->image->aot_module = amodule;
2258 if (mono_aot_only && !mono_llvm_only) {
2260 find_amodule_symbol (amodule, "specific_trampolines_page", (gpointer *)&code);
2261 amodule->use_page_trampolines = code != NULL;
2262 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2266 * Register the plt region as a single trampoline so we can unwind from this code
2268 mono_aot_tramp_info_register (
2269 mono_tramp_info_create (
2272 amodule->plt_end - amodule->plt,
2274 mono_unwind_get_cie_program ()
2280 * Since we store methoddef and classdef tokens when referring to methods/classes in
2281 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2282 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2283 * non-lazily, since we can't handle out-of-date errors later.
2284 * The cached class info also depends on the exact assemblies.
2286 if (do_load_image) {
2287 for (i = 0; i < amodule->image_table_len; ++i) {
2289 load_image (amodule, i, &error);
2290 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2294 if (amodule->out_of_date) {
2295 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: Module %s is unusable because a dependency is out-of-date.", assembly->image->name);
2297 g_error ("Failed to load AOT module '%s' while running in aot-only mode because a dependency cannot be found or it is out of date.\n", found_aot_name);
2299 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' found.", found_aot_name);
2304 * mono_aot_register_module:
2306 * This should be called by embedding code to register AOT modules statically linked
2307 * into the executable. AOT_INFO should be the value of the
2308 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2311 mono_aot_register_module (gpointer *aot_info)
2315 MonoAotFileInfo *info = (MonoAotFileInfo *)aot_info;
2317 g_assert (info->version == MONO_AOT_FILE_VERSION);
2319 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
2320 globals = (void **)info->globals;
2324 aname = (char *)info->assembly_name;
2326 /* This could be called before startup */
2330 if (!static_aot_modules)
2331 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2333 g_hash_table_insert (static_aot_modules, aname, info);
2340 mono_aot_init (void)
2342 mono_os_mutex_init_recursive (&aot_mutex);
2343 mono_os_mutex_init_recursive (&aot_page_mutex);
2344 aot_modules = g_hash_table_new (NULL, NULL);
2346 mono_install_assembly_load_hook (load_aot_module, NULL);
2347 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2349 char *lastaot = g_getenv ("MONO_LASTAOT");
2351 mono_last_aot_method = atoi (lastaot);
2358 mono_aot_cleanup (void)
2360 if (aot_jit_icall_hash)
2361 g_hash_table_destroy (aot_jit_icall_hash);
2363 g_hash_table_destroy (aot_modules);
2367 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2374 info->vtable_size = decode_value (buf, &buf);
2375 if (info->vtable_size == -1)
2378 flags = decode_value (buf, &buf);
2379 info->ghcimpl = (flags >> 0) & 0x1;
2380 info->has_finalize = (flags >> 1) & 0x1;
2381 info->has_cctor = (flags >> 2) & 0x1;
2382 info->has_nested_classes = (flags >> 3) & 0x1;
2383 info->blittable = (flags >> 4) & 0x1;
2384 info->has_references = (flags >> 5) & 0x1;
2385 info->has_static_refs = (flags >> 6) & 0x1;
2386 info->no_special_static_fields = (flags >> 7) & 0x1;
2387 info->is_generic_container = (flags >> 8) & 0x1;
2389 if (info->has_cctor) {
2390 res = decode_method_ref (module, &ref, buf, &buf, &error);
2391 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
2394 info->cctor_token = ref.token;
2396 if (info->has_finalize) {
2397 res = decode_method_ref (module, &ref, buf, &buf, &error);
2398 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
2401 info->finalize_image = ref.image;
2402 info->finalize_token = ref.token;
2405 info->instance_size = decode_value (buf, &buf);
2406 info->class_size = decode_value (buf, &buf);
2407 info->packing_size = decode_value (buf, &buf);
2408 info->min_align = decode_value (buf, &buf);
2416 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot, MonoError *error)
2419 MonoClass *klass = vtable->klass;
2420 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2422 MonoCachedClassInfo class_info;
2427 MonoError inner_error;
2431 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2434 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2437 err = decode_cached_class_info (amodule, &class_info, p, &p);
2441 for (i = 0; i < slot; ++i) {
2442 decode_method_ref (amodule, &ref, p, &p, &inner_error);
2443 mono_error_cleanup (&inner_error); /* FIXME don't swallow the error */
2446 res = decode_method_ref (amodule, &ref, p, &p, &inner_error);
2447 mono_error_cleanup (&inner_error); /* FIXME don't swallow the error */
2450 if (ref.no_aot_trampoline)
2453 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2456 addr = mono_aot_get_method_from_token (domain, ref.image, ref.token, error);
2461 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2463 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2467 if (klass->rank || !klass->type_token || !amodule)
2470 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2472 err = decode_cached_class_info (amodule, res, p, &p);
2480 * mono_aot_get_class_from_name:
2482 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2483 * using a cache stored in the AOT file.
2484 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2486 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2490 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2492 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
2493 guint16 *table, *entry;
2496 char full_name_buf [1024];
2498 const char *name2, *name_space2;
2500 guint32 cols [MONO_TYPEDEF_SIZE];
2501 GHashTable *nspace_table;
2503 if (!amodule || !amodule->class_name_table)
2506 amodule_lock (amodule);
2510 /* First look in the cache */
2511 if (!amodule->name_cache)
2512 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2513 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2515 *klass = (MonoClass *)g_hash_table_lookup (nspace_table, name);
2517 amodule_unlock (amodule);
2522 table_size = amodule->class_name_table [0];
2523 table = amodule->class_name_table + 1;
2525 if (name_space [0] == '\0')
2526 full_name = g_strdup_printf ("%s", name);
2528 if (strlen (name_space) + strlen (name) < 1000) {
2529 sprintf (full_name_buf, "%s.%s", name_space, name);
2530 full_name = full_name_buf;
2532 full_name = g_strdup_printf ("%s.%s", name_space, name);
2535 hash = mono_metadata_str_hash (full_name) % table_size;
2536 if (full_name != full_name_buf)
2539 entry = &table [hash * 2];
2541 if (entry [0] != 0) {
2542 t = &image->tables [MONO_TABLE_TYPEDEF];
2545 guint32 index = entry [0];
2546 guint32 next = entry [1];
2547 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2549 name_table_accesses ++;
2551 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2553 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2554 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2556 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2558 amodule_unlock (amodule);
2559 *klass = mono_class_get_checked (image, token, &error);
2560 if (!mono_error_ok (&error))
2561 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2565 amodule_lock (amodule);
2566 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2567 if (!nspace_table) {
2568 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2569 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2571 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2572 amodule_unlock (amodule);
2578 entry = &table [next * 2];
2585 amodule_unlock (amodule);
2590 /* Compute the boundaries of the LLVM code for AMODULE. */
2592 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end)
2595 int version, fde_count;
2598 if (amodule->info.llvm_get_method) {
2599 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2601 *code_start = (guint8 *)get_method (-1);
2602 *code_end = (guint8 *)get_method (-2);
2604 g_assert (*code_end > *code_start);
2608 g_assert (amodule->mono_eh_frame);
2610 p = amodule->mono_eh_frame;
2612 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2616 g_assert (version == 3);
2619 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2621 fde_count = *(guint32*)p;
2625 if (fde_count > 0) {
2626 *code_start = (guint8 *)amodule->methods [table [0]];
2627 *code_end = (guint8*)amodule->methods [table [(fde_count - 1) * 2]] + table [fde_count * 2];
2635 is_llvm_code (MonoAotModule *amodule, guint8 *code)
2637 if ((guint8*)code >= amodule->llvm_code_start && (guint8*)code < amodule->llvm_code_end)
2644 is_thumb_code (MonoAotModule *amodule, guint8 *code)
2646 if (is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_THUMB))
2653 * decode_llvm_mono_eh_frame:
2655 * Decode the EH information emitted by our modified LLVM compiler and construct a
2656 * MonoJitInfo structure from it.
2657 * If JINFO is NULL, set OUT_LLVM_CLAUSES to the number of llvm level clauses.
2658 * This function is async safe when called in async context.
2661 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain, MonoJitInfo *jinfo,
2662 guint8 *code, guint32 code_len,
2663 MonoJitExceptionInfo *clauses, int num_clauses,
2665 int *this_reg, int *this_offset, int *out_llvm_clauses)
2667 guint8 *p, *code1, *code2;
2668 guint8 *fde, *cie, *code_start, *code_end;
2669 int version, fde_count;
2671 int i, pos, left, right;
2672 MonoJitExceptionInfo *ei;
2673 guint32 fde_len, ei_len, nested_len, nindex;
2674 gpointer *type_info;
2675 MonoLLVMFDEInfo info;
2679 async = mono_thread_info_is_async_context ();
2681 if (!amodule->mono_eh_frame) {
2683 *out_llvm_clauses = num_clauses;
2686 memcpy (jinfo->clauses, clauses, num_clauses * sizeof (MonoJitExceptionInfo));
2690 g_assert (amodule->mono_eh_frame && code);
2692 p = amodule->mono_eh_frame;
2694 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2698 g_assert (version == 3);
2700 /* func_encoding = *p; */
2702 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2704 fde_count = *(guint32*)p;
2708 /* There is +1 entry in the table */
2709 cie = p + ((fde_count + 1) * 8);
2711 /* Binary search in the table to find the entry for code */
2715 pos = (left + right) / 2;
2717 /* The table contains method index/fde offset pairs */
2718 g_assert (table [(pos * 2)] != -1);
2719 code1 = (guint8 *)amodule->methods [table [(pos * 2)]];
2720 if (pos + 1 == fde_count) {
2721 code2 = amodule->llvm_code_end;
2723 g_assert (table [(pos + 1) * 2] != -1);
2724 code2 = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2729 else if (code >= code2)
2735 code_start = (guint8 *)amodule->methods [table [(pos * 2)]];
2736 if (pos + 1 == fde_count) {
2737 /* The +1 entry in the table contains the length of the last method */
2738 int len = table [(pos + 1) * 2];
2739 code_end = code_start + len;
2741 code_end = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2744 code_len = code_end - code_start;
2746 g_assert (code >= code_start && code < code_end);
2748 if (is_thumb_code (amodule, code_start))
2749 /* Clear thumb flag */
2750 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2752 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2753 /* This won't overflow because there is +1 entry in the table */
2754 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2756 /* Compute lengths */
2757 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info, NULL, NULL, NULL);
2760 /* These are leaked, but the leak is bounded */
2761 ei = mono_domain_alloc0_lock_free (domain, info.ex_info_len * sizeof (MonoJitExceptionInfo));
2762 type_info = mono_domain_alloc0_lock_free (domain, info.ex_info_len * sizeof (gpointer));
2763 unw_info = mono_domain_alloc0_lock_free (domain, info.unw_info_len);
2765 ei = (MonoJitExceptionInfo *)g_malloc0 (info.ex_info_len * sizeof (MonoJitExceptionInfo));
2766 type_info = (gpointer *)g_malloc0 (info.ex_info_len * sizeof (gpointer));
2767 unw_info = (guint8*)g_malloc0 (info.unw_info_len);
2769 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info, ei, type_info, unw_info);
2771 ei_len = info.ex_info_len;
2772 *this_reg = info.this_reg;
2773 *this_offset = info.this_offset;
2776 * LLVM might represent one IL region with multiple regions.
2779 /* Count number of nested clauses */
2781 for (i = 0; i < ei_len; ++i) {
2782 /* This might be unaligned */
2783 gint32 cindex1 = read32 (type_info [i]);
2786 for (l = nesting [cindex1]; l; l = l->next)
2791 *out_llvm_clauses = ei_len + nested_len;
2795 /* Store the unwind info addr/length in the MonoJitInfo structure itself so its async safe */
2796 MonoUnwindJitInfo *jinfo_unwind = mono_jit_info_get_unwind_info (jinfo);
2797 g_assert (jinfo_unwind);
2798 jinfo_unwind->unw_info = unw_info;
2799 jinfo_unwind->unw_info_len = info.unw_info_len;
2801 for (i = 0; i < ei_len; ++i) {
2803 * clauses contains the original IL exception info saved by the AOT
2804 * compiler, we have to combine that with the information produced by LLVM
2806 /* The type_info entries contain IL clause indexes */
2807 int clause_index = read32 (type_info [i]);
2808 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2809 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2811 g_assert (clause_index < num_clauses);
2812 jei->flags = orig_jei->flags;
2813 jei->data.catch_class = orig_jei->data.catch_class;
2815 jei->try_start = ei [i].try_start;
2816 jei->try_end = ei [i].try_end;
2817 jei->handler_start = ei [i].handler_start;
2818 jei->clause_index = clause_index;
2820 if (is_thumb_code (amodule, (guint8 *)jei->try_start)) {
2821 jei->try_start = (void*)((mgreg_t)jei->try_start & ~1);
2822 jei->try_end = (void*)((mgreg_t)jei->try_end & ~1);
2823 /* Make sure we transition to thumb when a handler starts */
2824 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2828 /* See exception_cb () in mini-llvm.c as to why this is needed */
2830 for (i = 0; i < ei_len; ++i) {
2831 gint32 cindex1 = read32 (type_info [i]);
2834 for (l = nesting [cindex1]; l; l = l->next) {
2835 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2836 MonoJitExceptionInfo *nesting_ei;
2837 MonoJitExceptionInfo *nesting_clause = &clauses [nesting_cindex];
2839 nesting_ei = &jinfo->clauses [nindex];
2842 memcpy (nesting_ei, &jinfo->clauses [i], sizeof (MonoJitExceptionInfo));
2843 nesting_ei->flags = nesting_clause->flags;
2844 nesting_ei->data.catch_class = nesting_clause->data.catch_class;
2845 nesting_ei->clause_index = nesting_cindex;
2848 g_assert (nindex == ei_len + nested_len);
2852 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2856 if (async_context) {
2857 res = mono_domain_alloc0_lock_free (domain, size);
2858 InterlockedExchangeAdd (&async_jit_info_size, size);
2860 res = mono_domain_alloc0 (domain, size);
2866 * LOCKING: Acquires the domain lock.
2867 * In async context, this is async safe.
2870 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2871 MonoMethod *method, guint8* ex_info,
2872 guint8 *code, guint32 code_len)
2875 int i, buf_len, num_clauses, len;
2877 MonoJitInfoFlags flags = JIT_INFO_NONE;
2878 guint unwind_info, eflags;
2879 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2880 gboolean from_llvm, has_gc_map;
2882 int try_holes_info_size, num_holes;
2883 int this_reg = 0, this_offset = 0;
2886 /* Load the method info from the AOT file */
2887 async = mono_thread_info_is_async_context ();
2890 eflags = decode_value (p, &p);
2891 has_generic_jit_info = (eflags & 1) != 0;
2892 has_dwarf_unwind_info = (eflags & 2) != 0;
2893 has_clauses = (eflags & 4) != 0;
2894 has_seq_points = (eflags & 8) != 0;
2895 from_llvm = (eflags & 16) != 0;
2896 has_try_block_holes = (eflags & 32) != 0;
2897 has_gc_map = (eflags & 64) != 0;
2898 has_arch_eh_jit_info = (eflags & 128) != 0;
2900 if (has_dwarf_unwind_info) {
2901 unwind_info = decode_value (p, &p);
2902 g_assert (unwind_info < (1 << 30));
2904 unwind_info = decode_value (p, &p);
2906 if (has_generic_jit_info)
2907 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2909 if (has_try_block_holes) {
2910 num_holes = decode_value (p, &p);
2911 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2912 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2914 num_holes = try_holes_info_size = 0;
2917 if (has_arch_eh_jit_info) {
2918 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2919 /* Overwrite the original code_len which includes alignment padding */
2920 code_len = decode_value (p, &p);
2923 /* Exception table */
2925 num_clauses = decode_value (p, &p);
2930 MonoJitExceptionInfo *clauses;
2934 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2938 if (num_clauses < 16) {
2939 clauses = g_newa (MonoJitExceptionInfo, num_clauses);
2940 nesting = g_newa (GSList*, num_clauses);
2942 clauses = alloc0_jit_info_data (domain, sizeof (MonoJitExceptionInfo) * num_clauses, TRUE);
2943 nesting = alloc0_jit_info_data (domain, sizeof (GSList*) * num_clauses, TRUE);
2945 memset (clauses, 0, sizeof (MonoJitExceptionInfo) * num_clauses);
2946 memset (nesting, 0, sizeof (GSList*) * num_clauses);
2948 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2949 nesting = g_new0 (GSList*, num_clauses);
2952 for (i = 0; i < num_clauses; ++i) {
2953 MonoJitExceptionInfo *ei = &clauses [i];
2955 ei->flags = decode_value (p, &p);
2957 if (!(ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)) {
2958 int len = decode_value (p, &p);
2964 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
2965 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2970 ei->clause_index = i;
2972 ei->try_offset = decode_value (p, &p);
2973 ei->try_len = decode_value (p, &p);
2974 ei->handler_offset = decode_value (p, &p);
2975 ei->handler_len = decode_value (p, &p);
2977 /* Read the list of nesting clauses */
2979 int nesting_index = decode_value (p, &p);
2980 if (nesting_index == -1)
2984 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2988 flags |= JIT_INFO_HAS_UNWIND_INFO;
2990 int num_llvm_clauses;
2991 /* Get the length first */
2992 decode_llvm_mono_eh_frame (amodule, domain, NULL, code, code_len, clauses, num_clauses, nesting, &this_reg, &this_offset, &num_llvm_clauses);
2993 len = mono_jit_info_size (flags, num_llvm_clauses, num_holes);
2994 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
2995 mono_jit_info_init (jinfo, method, code, code_len, flags, num_llvm_clauses, num_holes);
2997 decode_llvm_mono_eh_frame (amodule, domain, jinfo, code, code_len, clauses, num_clauses, nesting, &this_reg, &this_offset, NULL);
3001 for (i = 0; i < num_clauses; ++i)
3002 g_slist_free (nesting [i]);
3006 len = mono_jit_info_size (flags, num_clauses, num_holes);
3007 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
3008 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
3010 for (i = 0; i < jinfo->num_clauses; ++i) {
3011 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3013 ei->flags = decode_value (p, &p);
3015 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
3016 /* Not used for catch clauses */
3017 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
3018 ei->exvar_offset = decode_value (p, &p);
3020 ei->exvar_offset = decode_value (p, &p);
3023 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
3024 ei->data.filter = code + decode_value (p, &p);
3026 int len = decode_value (p, &p);
3032 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
3033 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3038 ei->try_start = code + decode_value (p, &p);
3039 ei->try_end = code + decode_value (p, &p);
3040 ei->handler_start = code + decode_value (p, &p);
3043 jinfo->unwind_info = unwind_info;
3044 jinfo->domain_neutral = 0;
3045 jinfo->from_aot = 1;
3048 if (has_try_block_holes) {
3049 MonoTryBlockHoleTableJitInfo *table;
3051 g_assert (jinfo->has_try_block_holes);
3053 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
3056 table->num_holes = (guint16)num_holes;
3057 for (i = 0; i < num_holes; ++i) {
3058 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
3059 hole->clause = decode_value (p, &p);
3060 hole->length = decode_value (p, &p);
3061 hole->offset = decode_value (p, &p);
3065 if (has_arch_eh_jit_info) {
3066 MonoArchEHJitInfo *eh_info;
3068 g_assert (jinfo->has_arch_eh_info);
3070 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
3071 eh_info->stack_size = decode_value (p, &p);
3072 eh_info->epilog_size = decode_value (p, &p);
3076 /* The rest is not needed in async mode */
3077 jinfo->async = TRUE;
3078 jinfo->d.aot_info = amodule;
3083 if (has_generic_jit_info) {
3084 MonoGenericJitInfo *gi;
3087 g_assert (jinfo->has_generic_jit_info);
3089 gi = mono_jit_info_get_generic_jit_info (jinfo);
3092 gi->nlocs = decode_value (p, &p);
3094 gi->locations = (MonoDwarfLocListEntry *)alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
3095 for (i = 0; i < gi->nlocs; ++i) {
3096 MonoDwarfLocListEntry *entry = &gi->locations [i];
3098 entry->is_reg = decode_value (p, &p);
3099 entry->reg = decode_value (p, &p);
3101 entry->offset = decode_value (p, &p);
3103 entry->from = decode_value (p, &p);
3104 entry->to = decode_value (p, &p);
3109 gi->has_this = this_reg != -1;
3110 gi->this_reg = this_reg;
3111 gi->this_offset = this_offset;
3113 gi->has_this = decode_value (p, &p);
3114 gi->this_reg = decode_value (p, &p);
3115 gi->this_offset = decode_value (p, &p);
3119 len = decode_value (p, &p);
3123 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p, &error);
3124 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3127 gi->generic_sharing_context = alloc0_jit_info_data (domain, sizeof (MonoGenericSharingContext), async);
3128 if (decode_value (p, &p)) {
3130 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
3132 gsctx->is_gsharedvt = TRUE;
3136 if (method && has_seq_points) {
3137 MonoSeqPointInfo *seq_points;
3139 p += mono_seq_point_info_read (&seq_points, p, FALSE);
3141 mono_domain_lock (domain);
3142 /* This could be set already since this function can be called more than once for the same method */
3143 if (!g_hash_table_lookup (domain_jit_info (domain)->seq_points, method))
3144 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
3146 mono_seq_point_info_free (seq_points);
3147 mono_domain_unlock (domain);
3150 /* Load debug info */
3151 buf_len = decode_value (p, &p);
3153 mono_debug_add_aot_method (domain, method, code, p, buf_len);
3157 int map_size = decode_value (p, &p);
3158 /* The GC map requires 4 bytes of alignment */
3159 while ((guint64)(gsize)p % 4)
3165 if (amodule != jinfo->d.method->klass->image->aot_module) {
3168 ji_to_amodule = g_hash_table_new (NULL, NULL);
3169 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
3177 amodule_contains_code_addr (MonoAotModule *amodule, guint8 *code)
3179 return (code >= amodule->jit_code_start && code <= amodule->jit_code_end) ||
3180 (code >= amodule->llvm_code_start && code <= amodule->llvm_code_end);
3184 * mono_aot_get_unwind_info:
3186 * Return a pointer to the DWARF unwind info belonging to JI.
3189 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
3191 MonoAotModule *amodule;
3193 guint8 *code = (guint8 *)ji->code_start;
3196 amodule = (MonoAotModule *)ji->d.aot_info;
3198 amodule = (MonoAotModule *)jinfo_get_method (ji)->klass->image->aot_module;
3200 g_assert (ji->from_aot);
3202 if (!amodule_contains_code_addr (amodule, code)) {
3203 /* ji belongs to a different aot module than amodule */
3205 g_assert (ji_to_amodule);
3206 amodule = (MonoAotModule *)g_hash_table_lookup (ji_to_amodule, ji);
3208 g_assert (amodule_contains_code_addr (amodule, code));
3212 p = amodule->unwind_info + ji->unwind_info;
3213 *unwind_info_len = decode_value (p, &p);
3218 msort_method_addresses_internal (gpointer *array, int *indexes, int lo, int hi, gpointer *scratch, int *scratch_indexes)
3220 int mid = (lo + hi) / 2;
3227 for (i = lo; i < hi; ++i)
3228 if (array [i] > array [i + 1])
3231 /* Already sorted */
3235 msort_method_addresses_internal (array, indexes, lo, mid, scratch, scratch_indexes);
3236 msort_method_addresses_internal (array, indexes, mid + 1, hi, scratch, scratch_indexes);
3238 if (array [mid] < array [mid + 1])
3244 for (i = lo; i <= hi; i ++) {
3245 if (t_lo <= mid && ((t_hi > hi) || array [t_lo] < array [t_hi])) {
3246 scratch [i] = array [t_lo];
3247 scratch_indexes [i] = indexes [t_lo];
3250 scratch [i] = array [t_hi];
3251 scratch_indexes [i] = indexes [t_hi];
3255 for (i = lo; i <= hi; ++i) {
3256 array [i] = scratch [i];
3257 indexes [i] = scratch_indexes [i];
3262 msort_method_addresses (gpointer *array, int *indexes, int len)
3265 int *scratch_indexes;
3267 scratch = g_new (gpointer, len);
3268 scratch_indexes = g_new (int, len);
3269 msort_method_addresses_internal (array, indexes, 0, len - 1, scratch, scratch_indexes);
3271 g_free (scratch_indexes);
3275 * mono_aot_find_jit_info:
3277 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3278 * to the jit info tables.
3279 * FIXME: Large sizes in the lock free allocator
3282 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3285 int pos, left, right, code_len;
3286 int method_index, table_len;
3288 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
3289 MonoMethod *method = NULL;
3291 guint8 *code, *ex_info, *p;
3295 guint8 *code1, *code2;
3302 nmethods = amodule->info.nmethods;
3304 if (domain != mono_get_root_domain ())
3308 if (!amodule_contains_code_addr (amodule, (guint8 *)addr))
3311 async = mono_thread_info_is_async_context ();
3313 /* Compute a sorted table mapping code to method indexes. */
3314 if (!amodule->sorted_methods) {
3316 gpointer *methods = g_new0 (gpointer, nmethods);
3317 int *method_indexes = g_new0 (int, nmethods);
3318 int methods_len = 0;
3320 for (i = 0; i < nmethods; ++i) {
3321 /* Skip the -1 entries to speed up sorting */
3322 if (amodule->methods [i] == GINT_TO_POINTER (-1))
3324 methods [methods_len] = amodule->methods [i];
3325 method_indexes [methods_len] = i;
3328 /* Use a merge sort as this is mostly sorted */
3329 msort_method_addresses (methods, method_indexes, methods_len);
3330 for (i = 0; i < methods_len -1; ++i)
3331 g_assert (methods [i] <= methods [i + 1]);
3332 amodule->sorted_methods_len = methods_len;
3333 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_methods, methods, NULL) != NULL)
3334 /* Somebody got in before us */
3336 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_method_indexes, method_indexes, NULL) != NULL)
3337 /* Somebody got in before us */
3338 g_free (method_indexes);
3341 /* Binary search in the sorted_methods table */
3342 methods = amodule->sorted_methods;
3343 methods_len = amodule->sorted_methods_len;
3344 code = (guint8 *)addr;
3346 right = methods_len;
3348 pos = (left + right) / 2;
3350 code1 = (guint8 *)methods [pos];
3351 if (pos + 1 == methods_len) {
3352 if (code1 >= amodule->jit_code_start && code1 < amodule->jit_code_end)
3353 code2 = amodule->jit_code_end;
3355 code2 = amodule->llvm_code_end;
3357 code2 = (guint8 *)methods [pos + 1];
3362 else if (code >= code2)
3368 g_assert (addr >= methods [pos]);
3369 if (pos + 1 < methods_len)
3370 g_assert (addr < methods [pos + 1]);
3371 method_index = amodule->sorted_method_indexes [pos];
3373 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3375 JitInfoMap *table = amodule->async_jit_info_table;
3379 len = table [0].method_index;
3380 for (i = 1; i < len; ++i) {
3381 if (table [i].method_index == method_index)
3382 return table [i].jinfo;
3387 code = (guint8 *)amodule->methods [method_index];
3388 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3390 if (pos == methods_len - 1) {
3391 if (code >= amodule->jit_code_start && code < amodule->jit_code_end)
3392 code_len = amodule->jit_code_end - code;
3394 code_len = amodule->llvm_code_end - code;
3396 code_len = (guint8*)methods [pos + 1] - (guint8*)methods [pos];
3399 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3401 /* Might be a wrapper/extra method */
3403 if (amodule->extra_methods) {
3404 amodule_lock (amodule);
3405 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3406 amodule_unlock (amodule);
3412 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3414 * This is hit for extra methods which are called directly, so they are
3415 * not in amodule->extra_methods.
3417 table_len = amodule->extra_method_info_offsets [0];
3418 table = amodule->extra_method_info_offsets + 1;
3425 pos = ((left + right) / 2);
3427 g_assert (pos < table_len);
3429 if (table [pos * 2] < method_index)
3431 else if (table [pos * 2] > method_index)
3437 p = amodule->blob + table [(pos * 2) + 1];
3438 method = decode_resolve_method_ref (amodule, p, &p, &error);
3439 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3441 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3445 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3446 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3448 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3455 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3457 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code, code_len);
3459 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3461 /* Add it to the normal JitInfo tables */
3463 JitInfoMap *old_table, *new_table;
3467 * Use a simple inmutable table with linear search to cache async jit info entries.
3468 * This assumes that the number of entries is small.
3471 /* Copy the table, adding a new entry at the end */
3472 old_table = amodule->async_jit_info_table;
3474 len = old_table[0].method_index;
3477 new_table = (JitInfoMap *)alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3479 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3480 new_table [0].method_index = len + 1;
3481 new_table [len].method_index = method_index;
3482 new_table [len].jinfo = jinfo;
3484 mono_memory_barrier ();
3485 if (InterlockedCompareExchangePointer ((volatile gpointer *)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3489 mono_jit_info_table_add (domain, jinfo);
3492 if ((guint8*)addr >= (guint8*)jinfo->code_start + jinfo->code_size)
3493 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3500 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3509 case MONO_PATCH_INFO_METHOD:
3510 case MONO_PATCH_INFO_METHOD_JUMP:
3511 case MONO_PATCH_INFO_ICALL_ADDR:
3512 case MONO_PATCH_INFO_ICALL_ADDR_CALL:
3513 case MONO_PATCH_INFO_METHOD_RGCTX:
3514 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3518 res = decode_method_ref (aot_module, &ref, p, &p, &error);
3519 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3523 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)) {
3524 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3525 ji->type = MONO_PATCH_INFO_ABS;
3529 ji->data.method = ref.method;
3532 ji->data.method = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
3533 if (!ji->data.method)
3534 g_error ("AOT Runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3536 g_assert (ji->data.method);
3537 mono_class_init (ji->data.method->klass);
3541 case MONO_PATCH_INFO_INTERNAL_METHOD:
3542 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3543 guint32 len = decode_value (p, &p);
3545 ji->data.name = (char*)p;
3549 case MONO_PATCH_INFO_METHODCONST:
3551 ji->data.method = decode_resolve_method_ref (aot_module, p, &p, &error);
3552 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3553 if (!ji->data.method)
3556 case MONO_PATCH_INFO_VTABLE:
3557 case MONO_PATCH_INFO_CLASS:
3558 case MONO_PATCH_INFO_IID:
3559 case MONO_PATCH_INFO_ADJUSTED_IID:
3561 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3562 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3563 if (!ji->data.klass)
3566 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3567 ji->data.del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3568 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p, &error);
3569 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3570 if (!ji->data.del_tramp->klass)
3572 if (decode_value (p, &p)) {
3573 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3574 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3575 if (!ji->data.del_tramp->method)
3578 ji->data.del_tramp->is_virtual = decode_value (p, &p) ? TRUE : FALSE;
3580 case MONO_PATCH_INFO_IMAGE:
3581 ji->data.image = load_image (aot_module, decode_value (p, &p), &error);
3582 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3583 if (!ji->data.image)
3586 case MONO_PATCH_INFO_FIELD:
3587 case MONO_PATCH_INFO_SFLDA:
3589 ji->data.field = decode_field_info (aot_module, p, &p);
3590 if (!ji->data.field)
3593 case MONO_PATCH_INFO_SWITCH:
3594 ji->data.table = (MonoJumpInfoBBTable *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3595 ji->data.table->table_size = decode_value (p, &p);
3596 table = (void **)mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3597 ji->data.table->table = (MonoBasicBlock**)table;
3598 for (i = 0; i < ji->data.table->table_size; i++)
3599 table [i] = (gpointer)(gssize)decode_value (p, &p);
3601 case MONO_PATCH_INFO_R4: {
3604 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3605 val = decode_value (p, &p);
3606 *(float*)ji->data.target = *(float*)&val;
3609 case MONO_PATCH_INFO_R8: {
3613 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3615 val [0] = decode_value (p, &p);
3616 val [1] = decode_value (p, &p);
3617 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3618 *(double*)ji->data.target = *(double*)&v;
3621 case MONO_PATCH_INFO_LDSTR:
3622 image = load_image (aot_module, decode_value (p, &p), &error);
3623 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3626 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3628 case MONO_PATCH_INFO_RVA:
3629 case MONO_PATCH_INFO_DECLSEC:
3630 case MONO_PATCH_INFO_LDTOKEN:
3631 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3633 image = load_image (aot_module, decode_value (p, &p), &error);
3634 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3637 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3639 ji->data.token->has_context = decode_value (p, &p);
3640 if (ji->data.token->has_context) {
3641 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p, &error);
3642 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3647 case MONO_PATCH_INFO_EXC_NAME:
3648 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3649 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3650 if (!ji->data.klass)
3652 ji->data.name = ji->data.klass->name;
3654 case MONO_PATCH_INFO_METHOD_REL:
3655 ji->data.offset = decode_value (p, &p);
3657 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3658 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3659 case MONO_PATCH_INFO_GC_NURSERY_START:
3660 case MONO_PATCH_INFO_GC_NURSERY_BITS:
3662 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3663 ji->data.index = decode_value (p, &p);
3665 case MONO_PATCH_INFO_RGCTX_FETCH:
3666 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
3668 MonoJumpInfoRgctxEntry *entry;
3669 guint32 offset, val;
3672 offset = decode_value (p, &p);
3673 val = decode_value (p, &p);
3675 entry = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3676 p2 = aot_module->blob + offset;
3677 entry->method = decode_resolve_method_ref (aot_module, p2, &p2, &error);
3678 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3679 entry->info_type = (MonoRgctxInfoType)((val >> 1) & 0xff);
3680 entry->data = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3681 entry->data->type = (MonoJumpInfoType)((val >> 9) & 0xff);
3682 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3684 res = decode_patch (aot_module, mp, entry->data, p, &p);
3687 ji->data.rgctx_entry = entry;
3690 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3691 case MONO_PATCH_INFO_AOT_MODULE:
3692 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
3694 case MONO_PATCH_INFO_SIGNATURE:
3695 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
3696 ji->data.target = decode_signature (aot_module, p, &p);
3698 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3699 MonoJumpInfoGSharedVtCall *info = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3700 info->sig = decode_signature (aot_module, p, &p);
3701 g_assert (info->sig);
3702 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3703 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3705 ji->data.target = info;
3708 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3709 MonoGSharedVtMethodInfo *info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3712 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3713 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3715 info->num_entries = decode_value (p, &p);
3716 info->count_entries = info->num_entries;
3717 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3718 for (i = 0; i < info->num_entries; ++i) {
3719 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
3721 template_->info_type = (MonoRgctxInfoType)decode_value (p, &p);
3722 switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) {
3723 case MONO_PATCH_INFO_CLASS: {
3724 MonoClass *klass = decode_klass_ref (aot_module, p, &p, &error);
3725 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3728 template_->data = &klass->byval_arg;
3731 case MONO_PATCH_INFO_FIELD:
3732 template_->data = decode_field_info (aot_module, p, &p);
3733 if (!template_->data)
3737 g_assert_not_reached ();
3741 ji->data.target = info;
3744 case MONO_PATCH_INFO_LDSTR_LIT: {
3745 int len = decode_value (p, &p);
3748 s = (char *)mono_mempool_alloc0 (mp, len + 1);
3749 memcpy (s, p, len + 1);
3752 ji->data.target = s;
3755 case MONO_PATCH_INFO_VIRT_METHOD: {
3756 MonoJumpInfoVirtMethod *info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
3758 info->klass = decode_klass_ref (aot_module, p, &p, &error);
3759 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3761 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3762 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3764 ji->data.target = info;
3767 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
3768 case MONO_PATCH_INFO_JIT_THREAD_ATTACH:
3770 case MONO_PATCH_INFO_GET_TLS_TRAMP:
3771 case MONO_PATCH_INFO_SET_TLS_TRAMP:
3772 case MONO_PATCH_INFO_AOT_JIT_INFO:
3773 ji->data.index = decode_value (p, &p);
3776 g_warning ("unhandled type %d", ji->type);
3777 g_assert_not_reached ();
3791 * Decode a list of patches identified by the got offsets in GOT_OFFSETS. Return an array of
3792 * MonoJumpInfo structures allocated from MP.
3794 static MonoJumpInfo*
3795 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets)
3797 MonoJumpInfo *patches;
3800 guint32 *got_info_offsets;
3805 got = amodule->llvm_got;
3806 got_info_offsets = (guint32 *)amodule->llvm_got_info_offsets;
3809 got_info_offsets = (guint32 *)amodule->got_info_offsets;
3812 patches = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3813 for (i = 0; i < n_patches; ++i) {
3814 guint8 *p = amodule->blob + mono_aot_get_offset (got_info_offsets, got_offsets [i]);
3817 ji->type = (MonoJumpInfoType)decode_value (p, &p);
3819 /* See load_method () for SFLDA */
3820 if (got && got [got_offsets [i]] && ji->type != MONO_PATCH_INFO_SFLDA) {
3821 /* Already loaded */
3823 res = decode_patch (amodule, mp, ji, p, &p);
3832 static MonoJumpInfo*
3833 load_patch_info (MonoAotModule *amodule, MonoMemPool *mp, int n_patches,
3834 gboolean llvm, guint32 **got_slots,
3835 guint8 *buf, guint8 **endbuf)
3837 MonoJumpInfo *patches;
3843 *got_slots = (guint32 *)g_malloc (sizeof (guint32) * n_patches);
3844 for (pindex = 0; pindex < n_patches; ++pindex) {
3845 (*got_slots)[pindex] = decode_value (p, &p);
3848 patches = decode_patches (amodule, mp, n_patches, llvm, *got_slots);
3850 g_free (*got_slots);
3860 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3863 * Jump addresses cannot be patched by the trampoline code since it
3864 * does not have access to the caller's address. Instead, we collect
3865 * the addresses of the GOT slots pointing to a method, and patch
3866 * them after the method has been compiled.
3868 MonoJitDomainInfo *info = domain_jit_info (domain);
3871 mono_domain_lock (domain);
3872 if (!info->jump_target_got_slot_hash)
3873 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3874 list = (GSList *)g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3875 list = g_slist_prepend (list, got_slot);
3876 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3877 mono_domain_unlock (domain);
3883 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3884 * pointer to the native code of the method, or NULL if not found.
3885 * METHOD might not be set if the caller only has the image/token info.
3888 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index,
3891 MonoJitInfo *jinfo = NULL;
3892 guint8 *code = NULL, *info;
3897 init_amodule_got (amodule);
3899 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE) {
3901 /* The caller cannot handle this */
3902 g_assert_not_reached ();
3906 if (domain != mono_get_root_domain ())
3907 /* Non shared AOT code can't be used in other appdomains */
3910 if (amodule->out_of_date)
3913 if (amodule->info.llvm_get_method) {
3915 * Obtain the method address by calling a generated function in the LLVM module.
3917 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
3918 code = (guint8 *)get_method (method_index);
3923 if (amodule->methods [method_index] == GINT_TO_POINTER (-1)) {
3924 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3928 method = mono_get_method_checked (image, token, NULL, NULL, error);
3932 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
3933 full_name = mono_method_full_name (method, TRUE);
3934 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3940 code = (guint8 *)amodule->methods [method_index];
3943 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3945 if (!amodule->methods_loaded) {
3946 amodule_lock (amodule);
3947 if (!amodule->methods_loaded) {
3950 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3951 mono_memory_barrier ();
3952 amodule->methods_loaded = loaded;
3954 amodule_unlock (amodule);
3957 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3960 if (mono_last_aot_method != -1) {
3961 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3963 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3965 method = mono_get_method_checked (image, token, NULL, NULL, error);
3970 char *name = mono_method_full_name (method, TRUE);
3971 g_print ("LAST AOT METHOD: %s.\n", name);
3974 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3979 if (!(is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) ||
3980 (mono_llvm_only && method && method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED)) {
3981 res = init_method (amodule, method_index, method, NULL, NULL, error);
3986 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3990 method = mono_get_method_checked (image, token, NULL, NULL, error);
3995 full_name = mono_method_full_name (method, TRUE);
3998 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4000 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
4004 amodule_lock (amodule);
4008 InterlockedIncrement (&mono_jit_stats.methods_aot);
4010 if (method && method->wrapper_type)
4011 g_hash_table_insert (amodule->method_to_code, method, code);
4013 /* Commit changes since methods_loaded is accessed outside the lock */
4014 mono_memory_barrier ();
4016 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
4018 amodule_unlock (amodule);
4020 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
4024 method = mono_get_method_checked (amodule->assembly->image, token, NULL, NULL, error);
4028 mono_profiler_method_jit (method);
4029 jinfo = mono_jit_info_table_find (domain, (char*)code);
4031 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4044 find_aot_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, guint32 hash_full)
4047 guint32 table_size, entry_size, hash;
4048 guint32 *table, *entry;
4050 static guint32 n_extra_decodes;
4052 if (!amodule || amodule->out_of_date)
4055 table_size = amodule->extra_method_table [0];
4056 hash = hash_full % table_size;
4057 table = amodule->extra_method_table + 1;
4060 entry = &table [hash * entry_size];
4067 guint32 key = entry [0];
4068 guint32 value = entry [1];
4069 guint32 next = entry [entry_size - 1];
4073 p = amodule->blob + key;
4076 amodule_lock (amodule);
4077 if (!amodule->method_ref_to_method)
4078 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
4079 m = (MonoMethod *)g_hash_table_lookup (amodule->method_ref_to_method, p);
4080 amodule_unlock (amodule);
4082 m = decode_resolve_method_ref_with_target (amodule, method, p, &p, &error);
4083 mono_error_cleanup (&error); /* FIXME don't swallow the error */
4085 * Can't catche runtime invoke wrappers since it would break
4086 * the check in decode_method_ref_with_target ().
4088 if (m && m->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
4089 amodule_lock (amodule);
4090 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
4091 amodule_unlock (amodule);
4099 /* Methods decoded needlessly */
4101 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
4106 entry = &table [next * entry_size];
4115 add_module_cb (gpointer key, gpointer value, gpointer user_data)
4117 g_ptr_array_add ((GPtrArray*)user_data, value);
4123 * Try finding METHOD in the extra_method table in all AOT images.
4124 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
4125 * module where the method was found.
4128 find_aot_method (MonoMethod *method, MonoAotModule **out_amodule)
4133 guint32 hash = mono_aot_method_hash (method);
4135 /* Try the method's module first */
4136 *out_amodule = (MonoAotModule *)method->klass->image->aot_module;
4137 index = find_aot_method_in_amodule ((MonoAotModule *)method->klass->image->aot_module, method, hash);
4138 if (index != 0xffffff)
4142 * Try all other modules.
4143 * This is needed because generic instances klass->image points to the image
4144 * containing the generic definition, but the native code is generated to the
4145 * AOT image which contains the reference.
4148 /* Make a copy to avoid doing the search inside the aot lock */
4149 modules = g_ptr_array_new ();
4151 g_hash_table_foreach (aot_modules, add_module_cb, modules);
4155 for (i = 0; i < modules->len; ++i) {
4156 MonoAotModule *amodule = (MonoAotModule *)g_ptr_array_index (modules, i);
4158 if (amodule != method->klass->image->aot_module)
4159 index = find_aot_method_in_amodule (amodule, method, hash);
4160 if (index != 0xffffff) {
4161 *out_amodule = amodule;
4166 g_ptr_array_free (modules, TRUE);
4172 mono_aot_find_method_index (MonoMethod *method)
4174 MonoAotModule *out_amodule;
4175 return find_aot_method (method, &out_amodule);
4179 init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context, MonoError *error)
4181 MonoDomain *domain = mono_domain_get ();
4183 MonoClass *klass_to_run_ctor = NULL;
4184 gboolean from_plt = method == NULL;
4185 int pindex, n_patches;
4187 MonoJitInfo *jinfo = NULL;
4188 guint8 *code, *info;
4192 code = (guint8 *)amodule->methods [method_index];
4193 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
4197 //does the method's class has a cctor?
4198 if (decode_value (p, &p) == 1)
4199 klass_to_run_ctor = decode_klass_ref (amodule, p, &p, error);
4203 //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
4205 klass_to_run_ctor = method->klass;
4207 n_patches = decode_value (p, &p);
4210 MonoJumpInfo *patches;
4215 mp = mono_mempool_new ();
4217 if ((gpointer)code >= amodule->info.jit_code_start && (gpointer)code <= amodule->info.jit_code_end) {
4222 got = amodule->llvm_got;
4226 patches = load_patch_info (amodule, mp, n_patches, llvm, &got_slots, p, &p);
4227 if (patches == NULL) {
4228 mono_mempool_destroy (mp);
4232 for (pindex = 0; pindex < n_patches; ++pindex) {
4233 MonoJumpInfo *ji = &patches [pindex];
4237 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
4238 * been initialized by load_method () for a static cctor before the cctor has
4239 * finished executing (#23242).
4241 if (!got [got_slots [pindex]] || ji->type == MONO_PATCH_INFO_SFLDA) {
4242 /* In llvm-only made, we might encounter shared methods */
4243 if (mono_llvm_only && ji->type == MONO_PATCH_INFO_METHOD && mono_method_check_context_used (ji->data.method)) {
4245 ji->data.method = mono_class_inflate_generic_method_checked (ji->data.method, context, error);
4246 if (!mono_error_ok (error)) {
4248 mono_mempool_destroy (mp);
4252 /* This cannot be resolved in mono_resolve_patch_target () */
4253 if (ji->type == MONO_PATCH_INFO_AOT_JIT_INFO) {
4254 // FIXME: Lookup using the index
4255 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4256 ji->type = MONO_PATCH_INFO_ABS;
4257 ji->data.target = jinfo;
4259 addr = mono_resolve_patch_target (method, domain, code, ji, TRUE, error);
4260 if (!mono_error_ok (error)) {
4262 mono_mempool_destroy (mp);
4265 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4266 addr = mono_create_ftnptr (domain, addr);
4267 mono_memory_barrier ();
4268 got [got_slots [pindex]] = addr;
4269 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4270 register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
4272 ji->type = MONO_PATCH_INFO_NONE;
4277 mono_mempool_destroy (mp);
4280 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
4281 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4283 gboolean inited_ok = TRUE;
4285 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, init_class), error);
4286 else if (from_plt && klass_to_run_ctor && !mono_class_is_gtd (klass_to_run_ctor))
4287 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, klass_to_run_ctor), error);
4301 init_llvmonly_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context)
4306 res = init_method (amodule, method_index, method, init_class, context, &error);
4307 if (!is_ok (&error)) {
4308 MonoException *ex = mono_error_convert_to_exception (&error);
4309 /* Its okay to raise in llvmonly mode */
4311 mono_llvm_throw_exception ((MonoObject*)ex);
4316 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
4318 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4320 init_llvmonly_method (amodule, method_index, NULL, NULL, NULL);
4324 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this_obj)
4326 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4328 MonoGenericContext *context;
4332 g_assert (this_obj);
4333 klass = this_obj->vtable->klass;
4335 amodule_lock (amodule);
4336 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4337 amodule_unlock (amodule);
4340 context = mono_method_get_context (method);
4343 init_llvmonly_method (amodule, method_index, NULL, klass, context);
4347 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
4349 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4350 MonoGenericContext context = { NULL, NULL };
4351 MonoClass *klass = rgctx->class_vtable->klass;
4353 if (mono_class_is_ginst (klass))
4354 context.class_inst = mono_class_get_generic_class (klass)->context.class_inst;
4355 else if (mono_class_is_gtd (klass))
4356 context.class_inst = mono_class_get_generic_container (klass)->context.class_inst;
4357 context.method_inst = rgctx->method_inst;
4359 init_llvmonly_method (amodule, method_index, NULL, rgctx->class_vtable->klass, &context);
4363 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
4365 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4367 MonoGenericContext *context;
4370 klass = vtable->klass;
4372 amodule_lock (amodule);
4373 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4374 amodule_unlock (amodule);
4377 context = mono_method_get_context (method);
4380 init_llvmonly_method (amodule, method_index, NULL, klass, context);
4384 * mono_aot_get_method_checked:
4386 * Return a pointer to the AOTed native code for METHOD if it can be found,
4388 * On platforms with function pointers, this doesn't return a function pointer.
4391 mono_aot_get_method_checked (MonoDomain *domain, MonoMethod *method, MonoError *error)
4393 MonoClass *klass = method->klass;
4394 MonoMethod *orig_method = method;
4395 guint32 method_index;
4396 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
4398 gboolean cache_result = FALSE;
4399 MonoError inner_error;
4403 if (domain != mono_get_root_domain ())
4404 /* Non shared AOT code can't be used in other appdomains */
4407 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
4408 /* This cannot be AOTed during startup, so do it now */
4409 if (!mscorlib_aot_loaded) {
4410 mscorlib_aot_loaded = TRUE;
4411 load_aot_module (klass->image->assembly, NULL);
4412 amodule = (MonoAotModule *)klass->image->aot_module;
4419 if (amodule->out_of_date)
4422 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4423 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4424 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4425 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
4429 * Use the original method instead of its invoke-with-check wrapper.
4430 * This is not a problem when using full-aot, since it doesn't support
4433 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4434 return mono_aot_get_method_checked (domain, mono_marshal_method_from_wrapper (method), error);
4436 g_assert (klass->inited);
4438 /* Find method index */
4439 method_index = 0xffffff;
4440 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)) {
4441 MonoMethod *orig_method = method;
4443 * For generic methods, we store the fully shared instance in place of the
4446 method = mono_method_get_declaring_generic_method (method);
4447 method_index = mono_metadata_token_index (method->token) - 1;
4449 if (mono_llvm_only) {
4450 /* Needed by mono_aot_init_gshared_method_this () */
4451 /* orig_method is a random instance but it is enough to make init_method () work */
4452 amodule_lock (amodule);
4453 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), orig_method);
4454 amodule_unlock (amodule);
4456 } else if (method->is_inflated || !method->token) {
4457 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4458 amodule_lock (amodule);
4459 code = (guint8 *)g_hash_table_lookup (amodule->method_to_code, method);
4460 amodule_unlock (amodule);
4464 cache_result = TRUE;
4465 method_index = find_aot_method (method, &amodule);
4467 * Special case the ICollection<T> wrappers for arrays, as they cannot
4468 * be statically enumerated, and each wrapper ends up calling the same
4471 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
4472 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4474 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4475 mono_error_cleanup (&inner_error);
4481 * Special case Array.GetGenericValueImpl which is a generic icall.
4482 * Generic sharing currently can't handle it, but the icall returns data using
4483 * an out parameter, so the managed-to-native wrappers can share the same code.
4485 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
4487 MonoGenericContext ctx;
4488 MonoType *args [16];
4490 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
4491 /* Avoid recursion */
4494 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
4497 memset (&ctx, 0, sizeof (ctx));
4498 args [0] = &mono_defaults.object_class->byval_arg;
4499 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4501 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, error), TRUE, TRUE);
4503 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error)); /* FIXME don't swallow the error */
4506 * Get the code for the <object> instantiation which should be emitted into
4507 * the mscorlib aot image by the AOT compiler.
4509 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4510 mono_error_cleanup (&inner_error);
4515 /* Same for CompareExchange<T> and Exchange<T> */
4516 /* Same for Volatile.Read<T>/Write<T> */
4517 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
4518 ((!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]))) ||
4519 (!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)))) ||
4520 (!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])))))) {
4522 MonoGenericContext ctx;
4523 MonoType *args [16];
4524 gpointer iter = NULL;
4526 while ((m = mono_class_get_methods (method->klass, &iter))) {
4527 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
4532 memset (&ctx, 0, sizeof (ctx));
4533 args [0] = &mono_defaults.object_class->byval_arg;
4534 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4536 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, error), TRUE, TRUE);
4538 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error)); /* FIXME don't swallow the error */
4540 /* Avoid recursion */
4545 * Get the code for the <object> instantiation which should be emitted into
4546 * the mscorlib aot image by the AOT compiler.
4548 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4549 mono_error_cleanup (&inner_error);
4554 /* For ARRAY_ACCESSOR wrappers with reference types, use the <object> instantiation saved in corlib */
4555 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4556 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4558 if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
4559 MonoMethod *array_method = info->d.array_accessor.method;
4560 if (MONO_TYPE_IS_REFERENCE (&array_method->klass->element_class->byval_arg)) {
4563 if (!strcmp (array_method->name, "Set"))
4564 rank = mono_method_signature (array_method)->param_count - 1;
4565 else if (!strcmp (array_method->name, "Get") || !strcmp (array_method->name, "Address"))
4566 rank = mono_method_signature (array_method)->param_count;
4568 g_assert_not_reached ();
4569 MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, rank);
4570 MonoMethod *m = mono_class_get_method_from_name (obj_array_class, array_method->name, mono_method_signature (array_method)->param_count);
4573 m = mono_marshal_get_array_accessor_wrapper (m);
4575 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4576 mono_error_cleanup (&inner_error);
4584 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
4585 /* Partial sharing */
4588 shared = mini_get_shared_method (method);
4589 method_index = find_aot_method (shared, &amodule);
4590 if (method_index != 0xffffff)
4594 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4597 /* Use the all-vt shared method since this is what was AOTed */
4598 shared = mini_get_shared_method_full (method, TRUE, TRUE);
4599 method_index = find_aot_method (shared, &amodule);
4600 if (method_index != 0xffffff)
4601 method = mini_get_shared_method_full (method, TRUE, FALSE);
4604 if (method_index == 0xffffff) {
4605 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
4608 full_name = mono_method_full_name (method, TRUE);
4609 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
4615 if (method_index == 0xffffff)
4618 /* Needed by find_jit_info */
4619 amodule_lock (amodule);
4620 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
4621 amodule_unlock (amodule);
4624 method_index = mono_metadata_token_index (method->token) - 1;
4627 code = (guint8 *)load_method (domain, amodule, klass->image, method, method->token, method_index, error);
4630 if (code && cache_result) {
4631 amodule_lock (amodule);
4632 g_hash_table_insert (amodule->method_to_code, orig_method, code);
4633 amodule_unlock (amodule);
4639 * mono_aot_get_method:
4641 * Return a pointer to the AOTed native code for METHOD if it can be found,
4643 * On platforms with function pointers, this doesn't return a function pointer.
4646 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
4650 gpointer res = mono_aot_get_method_checked (domain, method, &error);
4651 /* This is external only, so its ok to raise here */
4652 mono_error_raise_exception (&error); /* OK to throw, external only without a good alternative */
4657 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4661 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token, MonoError *error)
4663 MonoAotModule *aot_module = (MonoAotModule *)image->aot_module;
4672 method_index = mono_metadata_token_index (token) - 1;
4674 res = load_method (domain, aot_module, image, NULL, token, method_index, error);
4681 } IsGotEntryUserData;
4684 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4686 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4687 MonoAotModule *aot_module = (MonoAotModule*)value;
4689 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4694 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4696 IsGotEntryUserData user_data;
4701 user_data.addr = addr;
4702 user_data.res = FALSE;
4704 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4707 return user_data.res;
4712 MonoAotModule *module;
4713 } FindAotModuleUserData;
4716 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4718 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4719 MonoAotModule *aot_module = (MonoAotModule*)value;
4721 if (amodule_contains_code_addr (aot_module, data->addr))
4722 data->module = aot_module;
4725 static inline MonoAotModule*
4726 find_aot_module (guint8 *code)
4728 FindAotModuleUserData user_data;
4733 /* Reading these need no locking */
4734 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4737 user_data.addr = code;
4738 user_data.module = NULL;
4741 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4744 return user_data.module;
4748 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4750 MonoAotModule *amodule;
4753 * Since AOT code is only used in the root domain,
4754 * mono_domain_get () != mono_get_root_domain () means the calling method
4755 * is AppDomain:InvokeInDomain, so this is the same check as in
4756 * mono_method_same_domain () but without loading the metadata for the method.
4758 if (mono_domain_get () == mono_get_root_domain ()) {
4760 amodule = find_aot_module (code);
4764 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4769 * mono_aot_plt_resolve:
4771 * This function is called by the entries in the PLT to resolve the actual method that
4772 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4773 * Returns NULL if the something cannot be loaded.
4776 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
4778 #ifdef MONO_ARCH_AOT_SUPPORTED
4779 guint8 *p, *target, *plt_entry;
4781 MonoAotModule *module = (MonoAotModule*)aot_module;
4782 gboolean res, no_ftnptr = FALSE;
4784 gboolean using_gsharedvt = FALSE;
4788 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4790 p = &module->blob [plt_info_offset];
4792 ji.type = (MonoJumpInfoType)decode_value (p, &p);
4794 mp = mono_mempool_new ();
4795 res = decode_patch (module, mp, &ji, p, &p);
4798 mono_mempool_destroy (mp);
4802 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4803 using_gsharedvt = TRUE;
4807 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4808 * it would create a trampoline, and we don't need that.
4809 * We could do this only if the method does not need the special handling
4810 * in mono_magic_trampoline ().
4812 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) &&
4813 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4814 target = (guint8 *)mono_jit_compile_method (ji.data.method, error);
4815 if (!mono_error_ok (error)) {
4816 mono_mempool_destroy (mp);
4821 target = (guint8 *)mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE, error);
4822 if (!mono_error_ok (error)) {
4823 mono_mempool_destroy (mp);
4829 * The trampoline expects us to return a function descriptor on platforms which use
4830 * it, but resolve_patch_target returns a direct function pointer for some type of
4831 * patches, so have to translate between the two.
4832 * FIXME: Clean this up, but how ?
4834 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) {
4835 /* These should already have a function descriptor */
4836 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4837 /* Our function descriptors have a 0 environment, gcc created ones don't */
4838 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4839 g_assert (((gpointer*)target) [2] == 0);
4842 } else if (!no_ftnptr) {
4843 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4844 g_assert (((gpointer*)target) [2] != 0);
4846 target = (guint8 *)mono_create_ftnptr (mono_domain_get (), target);
4849 mono_mempool_destroy (mp);
4851 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4852 plt_entry = mono_aot_get_plt_entry (code);
4853 g_assert (plt_entry);
4854 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4858 g_assert_not_reached ();
4866 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4867 * method in the module is loaded to avoid committing memory by writing to it.
4868 * LOCKING: Assumes the AMODULE lock is held.
4871 init_plt (MonoAotModule *amodule)
4876 if (amodule->plt_inited)
4879 if (amodule->info.plt_size <= 1) {
4880 amodule->plt_inited = TRUE;
4884 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4887 * Initialize the PLT entries in the GOT to point to the default targets.
4890 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4891 for (i = 1; i < amodule->info.plt_size; ++i)
4892 /* All the default entries point to the AOT trampoline */
4893 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4895 amodule->plt_inited = TRUE;
4899 * mono_aot_get_plt_entry:
4901 * Return the address of the PLT entry called by the code at CODE if exists.
4904 mono_aot_get_plt_entry (guint8 *code)
4906 MonoAotModule *amodule = find_aot_module (code);
4907 guint8 *target = NULL;
4913 if (is_thumb_code (amodule, code - 4))
4914 return mono_arm_get_thumb_plt_entry (code);
4917 #ifdef MONO_ARCH_AOT_SUPPORTED
4918 target = mono_arch_get_call_target (code);
4920 g_assert_not_reached ();
4924 while (target != NULL) {
4925 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4928 // Add 4 since mono_arch_get_call_target assumes we're passing
4929 // the instruction after the actual branch instruction.
4930 target = mono_arch_get_call_target (target + 4);
4935 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4943 * mono_aot_get_plt_info_offset:
4945 * Return the PLT info offset belonging to the plt entry called by CODE.
4948 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4950 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4952 g_assert (plt_entry);
4954 /* The offset is embedded inside the code after the plt entry */
4955 #ifdef MONO_ARCH_AOT_SUPPORTED
4956 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4958 g_assert_not_reached ();
4964 mono_create_ftnptr_malloc (guint8 *code)
4966 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4967 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4969 ftnptr->code = code;
4980 * mono_aot_register_jit_icall:
4982 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4983 * be called from mono_arch_init () during startup.
4986 mono_aot_register_jit_icall (const char *name, gpointer addr)
4988 /* No need for locking */
4989 if (!aot_jit_icall_hash)
4990 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
4991 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
4995 * load_function_full:
4997 * Load the function named NAME from the aot image.
5000 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
5004 int n_patches, pindex;
5007 guint32 info_offset;
5011 symbol = g_strdup_printf ("%s", name);
5012 find_amodule_symbol (amodule, symbol, (gpointer *)&code);
5015 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
5017 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
5021 symbol = g_strdup_printf ("%s_p", name);
5022 find_amodule_symbol (amodule, symbol, (gpointer *)&p);
5025 /* Nothing to patch */
5028 info_offset = *(guint32*)p;
5030 MonoTrampInfo *tinfo;
5031 guint32 code_size, uw_info_len, uw_offset;
5033 /* Construct a MonoTrampInfo from the data in the AOT image */
5035 p += sizeof (guint32);
5036 code_size = *(guint32*)p;
5037 p += sizeof (guint32);
5038 uw_offset = *(guint32*)p;
5039 uw_info = amodule->unwind_info + uw_offset;
5040 uw_info_len = decode_value (uw_info, &uw_info);
5042 tinfo = g_new0 (MonoTrampInfo, 1);
5043 tinfo->code = (guint8 *)code;
5044 tinfo->code_size = code_size;
5045 tinfo->uw_info_len = uw_info_len;
5047 tinfo->uw_info = uw_info;
5052 p = amodule->blob + info_offset;
5054 /* Similar to mono_aot_load_method () */
5056 n_patches = decode_value (p, &p);
5059 MonoJumpInfo *patches;
5062 mp = mono_mempool_new ();
5064 patches = load_patch_info (amodule, mp, n_patches, FALSE, &got_slots, p, &p);
5067 for (pindex = 0; pindex < n_patches; ++pindex) {
5068 MonoJumpInfo *ji = &patches [pindex];
5072 if (amodule->got [got_slots [pindex]])
5076 * When this code is executed, the runtime may not be initalized yet, so
5077 * resolve the patch info by hand.
5079 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
5080 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
5081 target = mono_get_lmf_addr;
5082 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint_noraise")) {
5083 target = mono_thread_force_interruption_checkpoint_noraise;
5084 } else if (!strcmp (ji->data.name, "mono_interruption_checkpoint_from_trampoline")) {
5085 target = mono_interruption_checkpoint_from_trampoline;
5086 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
5087 target = mono_exception_from_token;
5088 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
5089 target = mono_get_throw_exception ();
5090 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
5091 MonoTrampolineType tramp_type2 = (MonoTrampolineType)atoi (ji->data.name + strlen ("trampoline_func_"));
5092 target = (gpointer)mono_get_trampoline_func (tramp_type2);
5093 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
5094 /* atoll is needed because the the offset is unsigned */
5098 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
5099 g_assert (res == 1);
5100 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5101 target = mono_create_ftnptr_malloc ((guint8 *)target);
5102 } else if (!strcmp (ji->data.name, "debugger_agent_single_step_from_context")) {
5103 target = debugger_agent_single_step_from_context;
5104 } else if (!strcmp (ji->data.name, "debugger_agent_breakpoint_from_context")) {
5105 target = debugger_agent_breakpoint_from_context;
5106 } else if (!strcmp (ji->data.name, "throw_exception_addr")) {
5107 target = mono_get_throw_exception_addr ();
5108 } else if (strstr (ji->data.name, "generic_trampoline_")) {
5109 target = mono_aot_get_trampoline (ji->data.name);
5110 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
5111 /* Registered by mono_arch_init () */
5112 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
5114 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
5115 g_assert_not_reached ();
5119 /* Hopefully the code doesn't have patches which need method or
5122 target = mono_resolve_patch_target (NULL, NULL, (guint8 *)code, ji, FALSE, &error);
5123 mono_error_assert_ok (&error);
5127 amodule->got [got_slots [pindex]] = target;
5132 mono_mempool_destroy (mp);
5139 load_function (MonoAotModule *amodule, const char *name)
5141 return load_function_full (amodule, name, NULL);
5144 static MonoAotModule*
5145 get_mscorlib_aot_module (void)
5148 MonoAotModule *amodule;
5150 image = mono_defaults.corlib;
5152 amodule = (MonoAotModule *)image->aot_module;
5154 amodule = mscorlib_aot_module;
5160 no_trampolines (void)
5162 g_assert_not_reached ();
5166 * Return the trampoline identified by NAME from the mscorlib AOT file.
5167 * On ppc64, this returns a function descriptor.
5170 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5172 MonoAotModule *amodule = get_mscorlib_aot_module ();
5174 if (mono_llvm_only) {
5176 return no_trampolines;
5179 return mono_create_ftnptr_malloc ((guint8 *)load_function_full (amodule, name, out_tinfo));
5183 mono_aot_get_trampoline (const char *name)
5185 MonoTrampInfo *out_tinfo;
5188 code = mono_aot_get_trampoline_full (name, &out_tinfo);
5189 mono_aot_tramp_info_register (out_tinfo, NULL);
5195 read_unwind_info (MonoAotModule *amodule, MonoTrampInfo *info, const char *symbol_name)
5197 gpointer symbol_addr;
5198 guint32 uw_offset, uw_info_len;
5201 find_amodule_symbol (amodule, symbol_name, &symbol_addr);
5206 uw_offset = *(guint32*)symbol_addr;
5207 uw_info = amodule->unwind_info + uw_offset;
5208 uw_info_len = decode_value (uw_info, &uw_info);
5210 info->uw_info_len = uw_info_len;
5212 info->uw_info = uw_info;
5214 info->uw_info = NULL;
5216 /* If successful return the address of the following data */
5217 return (guint32*)symbol_addr + 1;
5221 #include <mach/mach.h>
5223 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
5226 read_page_trampoline_uwinfo (MonoTrampInfo *info, int tramp_type, gboolean is_generic)
5228 char symbol_name [128];
5230 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5231 sprintf (symbol_name, "specific_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5232 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5233 sprintf (symbol_name, "rgctx_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5234 else if (tramp_type == MONO_AOT_TRAMP_IMT)
5235 sprintf (symbol_name, "imt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5236 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5237 sprintf (symbol_name, "gsharedvt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5239 g_assert_not_reached ();
5241 read_unwind_info (mono_defaults.corlib->aot_module, info, symbol_name);
5244 static unsigned char*
5245 get_new_trampoline_from_page (int tramp_type)
5247 MonoAotModule *amodule;
5249 TrampolinePage *page;
5252 vm_address_t addr, taddr;
5254 vm_prot_t prot, max_prot;
5255 int psize, specific_trampoline_size;
5256 unsigned char *code;
5258 specific_trampoline_size = 2 * sizeof (gpointer);
5260 mono_aot_page_lock ();
5261 page = trampoline_pages [tramp_type];
5262 if (page && page->trampolines < page->trampolines_end) {
5263 code = page->trampolines;
5264 page->trampolines += specific_trampoline_size;
5265 mono_aot_page_unlock ();
5268 mono_aot_page_unlock ();
5269 /* the trampoline template page is in the mscorlib module */
5270 image = mono_defaults.corlib;
5273 psize = MONO_AOT_TRAMP_PAGE_SIZE;
5275 amodule = image->aot_module;
5278 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5279 tpage = load_function (amodule, "specific_trampolines_page");
5280 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5281 tpage = load_function (amodule, "rgctx_trampolines_page");
5282 else if (tramp_type == MONO_AOT_TRAMP_IMT)
5283 tpage = load_function (amodule, "imt_trampolines_page");
5284 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5285 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
5287 g_error ("Incorrect tramp type for trampolines page");
5289 /*g_warning ("loaded trampolines page at %x", tpage);*/
5291 /* avoid the unlikely case of looping forever */
5294 while (page == NULL && count-- > 0) {
5295 MonoTrampInfo *gen_info, *sp_info;
5298 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
5299 * while the second will contain the trampolines.
5302 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
5303 } while (ret == KERN_ABORTED);
5304 if (ret != KERN_SUCCESS) {
5305 g_error ("Cannot allocate memory for trampolines: %d", ret);
5308 /*g_warning ("allocated trampoline double page at %x", addr);*/
5309 /* replace the second page with a remapped trampoline page */
5310 taddr = addr + psize;
5311 vm_deallocate (mach_task_self (), taddr, psize);
5312 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
5313 if (ret != KERN_SUCCESS) {
5314 /* someone else got the page, try again */
5315 vm_deallocate (mach_task_self (), addr, psize);
5318 /*g_warning ("remapped trampoline page at %x", taddr);*/
5320 mono_aot_page_lock ();
5321 page = trampoline_pages [tramp_type];
5322 /* some other thread already allocated, so use that to avoid wasting memory */
5323 if (page && page->trampolines < page->trampolines_end) {
5324 code = page->trampolines;
5325 page->trampolines += specific_trampoline_size;
5326 mono_aot_page_unlock ();
5327 vm_deallocate (mach_task_self (), addr, psize);
5328 vm_deallocate (mach_task_self (), taddr, psize);
5331 page = (TrampolinePage*)addr;
5332 page->next = trampoline_pages [tramp_type];
5333 trampoline_pages [tramp_type] = page;
5334 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
5335 page->trampolines_end = (void*)(taddr + psize - 64);
5336 code = page->trampolines;
5337 page->trampolines += specific_trampoline_size;
5338 mono_aot_page_unlock ();
5340 /* Register the generic part at the beggining of the trampoline page */
5341 gen_info = mono_tramp_info_create (NULL, (guint8*)taddr, amodule->info.tramp_page_code_offsets [tramp_type], NULL, NULL);
5342 read_page_trampoline_uwinfo (gen_info, tramp_type, TRUE);
5343 mono_aot_tramp_info_register (gen_info, NULL);
5346 * Registering each specific trampoline produces a lot of
5347 * MonoJitInfo structures. Jump trampolines are also registered
5350 if (tramp_type != MONO_AOT_TRAMP_SPECIFIC) {
5351 /* Register the rest of the page as a single trampoline */
5352 sp_info = mono_tramp_info_create (NULL, code, page->trampolines_end - code, NULL, NULL);
5353 read_page_trampoline_uwinfo (sp_info, tramp_type, FALSE);
5354 mono_aot_tramp_info_register (sp_info, NULL);
5358 g_error ("Cannot allocate more trampoline pages: %d", ret);
5363 static unsigned char*
5364 get_new_trampoline_from_page (int tramp_type)
5366 g_error ("Page trampolines not supported.");
5373 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
5378 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
5380 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5383 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5389 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
5394 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
5396 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5399 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5405 get_new_imt_trampoline_from_page (gpointer arg)
5410 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT);
5412 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5414 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
5420 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
5425 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
5427 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5430 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5434 /* Return a given kind of trampoline */
5435 /* FIXME set unwind info for these trampolines */
5437 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
5440 MonoAotModule *amodule = get_mscorlib_aot_module ();
5441 int index, tramp_size;
5443 /* Currently, we keep all trampolines in the mscorlib AOT image */
5444 image = mono_defaults.corlib;
5446 *out_amodule = amodule;
5451 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5453 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5455 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
5456 g_error ("Ran out of trampolines of type %d in '%s' (limit %d)%s\n",
5457 tramp_type, image ? image->name : "mscorlib", amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
5459 index = amodule->trampoline_index [tramp_type] ++;
5463 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
5465 tramp_size = amodule->info.trampoline_size [tramp_type];
5468 *out_tramp_size = tramp_size;
5470 return amodule->trampolines [tramp_type] + (index * tramp_size);
5474 no_specific_trampoline (void)
5476 g_assert_not_reached ();
5480 * Return a specific trampoline from the AOT file.
5483 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5485 MonoAotModule *amodule;
5486 guint32 got_offset, tramp_size;
5487 guint8 *code, *tramp;
5488 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
5489 static gboolean inited;
5490 static guint32 num_trampolines;
5492 if (mono_llvm_only) {
5494 return no_specific_trampoline;
5501 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
5510 if (!generic_trampolines [tramp_type]) {
5513 symbol = mono_get_generic_trampoline_name (tramp_type);
5514 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
5518 tramp = (guint8 *)generic_trampolines [tramp_type];
5521 if (USE_PAGE_TRAMPOLINES) {
5522 code = (guint8 *)get_new_specific_trampoline_from_page (tramp, arg1);
5525 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
5527 amodule->got [got_offset] = tramp;
5528 amodule->got [got_offset + 1] = arg1;
5532 *code_len = tramp_size;
5538 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5540 MonoAotModule *amodule;
5544 if (USE_PAGE_TRAMPOLINES) {
5545 code = (guint8 *)get_new_rgctx_trampoline_from_page (addr, ctx);
5547 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
5549 amodule->got [got_offset] = ctx;
5550 amodule->got [got_offset + 1] = addr;
5553 /* The caller expects an ftnptr */
5554 return mono_create_ftnptr (mono_domain_get (), code);
5558 mono_aot_get_unbox_trampoline (MonoMethod *method)
5560 guint32 method_index = mono_metadata_token_index (method->token) - 1;
5561 MonoAotModule *amodule;
5563 guint32 *ut, *ut_end, *entry;
5564 int low, high, entry_index = 0;
5565 gpointer symbol_addr;
5566 MonoTrampInfo *tinfo;
5568 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
5569 method_index = find_aot_method (method, &amodule);
5570 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
5571 MonoMethod *shared = mini_get_shared_method_full (method, FALSE, FALSE);
5572 method_index = find_aot_method (shared, &amodule);
5574 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, TRUE)) {
5575 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
5576 method_index = find_aot_method (shared, &amodule);
5578 g_assert (method_index != 0xffffff);
5580 amodule = (MonoAotModule *)method->klass->image->aot_module;
5584 if (amodule->info.llvm_get_unbox_tramp) {
5585 gpointer (*get_tramp) (int) = (gpointer (*)(int))amodule->info.llvm_get_unbox_tramp;
5586 code = get_tramp (method_index);
5592 ut = amodule->unbox_trampolines;
5593 ut_end = amodule->unbox_trampolines_end;
5595 /* Do a binary search in the sorted table */
5598 high = (ut_end - ut);
5599 while (low < high) {
5600 entry_index = (low + high) / 2;
5601 entry = &ut [entry_index];
5602 if (entry [0] < method_index) {
5603 low = entry_index + 1;
5604 } else if (entry [0] > method_index) {
5611 code = get_call_table_entry (amodule->unbox_trampoline_addresses, entry_index);
5614 tinfo = mono_tramp_info_create (NULL, (guint8 *)code, 0, NULL, NULL);
5616 symbol_addr = read_unwind_info (amodule, tinfo, "unbox_trampoline_p");
5618 mono_tramp_info_free (tinfo);
5622 tinfo->code_size = *(guint32*)symbol_addr;
5623 mono_aot_tramp_info_register (tinfo, NULL);
5625 /* The caller expects an ftnptr */
5626 return mono_create_ftnptr (mono_domain_get (), code);
5630 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5634 MonoAotModule *amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
5635 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
5636 static int count = 0;
5639 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
5640 static gpointer addr;
5644 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5647 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
5648 info = (void **)mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
5649 info [0] = GUINT_TO_POINTER (slot);
5650 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5651 code = mono_aot_get_static_rgctx_trampoline (info, addr);
5652 return mono_create_ftnptr (mono_domain_get (), code);
5655 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
5656 code = load_function ((MonoAotModule *)mono_defaults.corlib->aot_module, symbol);
5658 /* The caller expects an ftnptr */
5659 return mono_create_ftnptr (mono_domain_get (), code);
5663 no_imt_trampoline (void)
5665 g_assert_not_reached ();
5669 mono_aot_get_imt_trampoline (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5674 int i, index, real_count;
5675 MonoAotModule *amodule;
5678 return no_imt_trampoline;
5681 for (i = 0; i < count; ++i) {
5682 MonoIMTCheckItem *item = imt_entries [i];
5684 if (item->is_equals)
5688 /* Save the entries into an array */
5689 buf = (void **)mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
5691 for (i = 0; i < count; ++i) {
5692 MonoIMTCheckItem *item = imt_entries [i];
5694 if (!item->is_equals)
5697 g_assert (item->key);
5699 buf [(index * 2)] = item->key;
5700 if (item->has_target_code) {
5701 gpointer *p = (gpointer *)mono_domain_alloc (domain, sizeof (gpointer));
5702 *p = item->value.target_code;
5703 buf [(index * 2) + 1] = p;
5705 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
5709 buf [(index * 2)] = NULL;
5710 buf [(index * 2) + 1] = fail_tramp;
5712 if (USE_PAGE_TRAMPOLINES) {
5713 code = get_new_imt_trampoline_from_page (buf);
5715 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT, 1, &amodule, &got_offset, NULL);
5717 amodule->got [got_offset] = buf;
5724 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5726 MonoAotModule *amodule;
5730 if (USE_PAGE_TRAMPOLINES) {
5731 code = (guint8 *)get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
5733 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
5735 amodule->got [got_offset] = arg;
5736 amodule->got [got_offset + 1] = addr;
5739 /* The caller expects an ftnptr */
5740 return mono_create_ftnptr (mono_domain_get (), code);
5744 * mono_aot_set_make_unreadable:
5746 * Set whenever to make all mmaped memory unreadable. In conjuction with a
5747 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
5750 mono_aot_set_make_unreadable (gboolean unreadable)
5754 make_unreadable = unreadable;
5756 if (make_unreadable && !inited) {
5757 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
5762 MonoAotModule *module;
5767 find_map (gpointer key, gpointer value, gpointer user_data)
5769 MonoAotModule *module = (MonoAotModule*)value;
5770 FindMapUserData *data = (FindMapUserData*)user_data;
5773 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
5774 data->module = module;
5777 static MonoAotModule*
5778 find_module_for_addr (void *ptr)
5780 FindMapUserData data;
5782 if (!make_unreadable)
5786 data.ptr = (guint8*)ptr;
5789 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
5796 * mono_aot_is_pagefault:
5798 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
5799 * within memory allocated by this module.
5802 mono_aot_is_pagefault (void *ptr)
5804 if (!make_unreadable)
5808 * Not signal safe, but SIGSEGV's are synchronous, and
5809 * this is only turned on by a MONO_DEBUG option.
5811 return find_module_for_addr (ptr) != NULL;
5815 * mono_aot_handle_pagefault:
5817 * Handle a pagefault caused by an unreadable page by making it readable again.
5820 mono_aot_handle_pagefault (void *ptr)
5822 #ifndef PLATFORM_WIN32
5823 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5827 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5828 g_assert (res == 0);
5839 mono_aot_init (void)
5844 mono_aot_cleanup (void)
5849 mono_aot_find_method_index (MonoMethod *method)
5851 g_assert_not_reached ();
5856 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
5861 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this)
5866 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
5871 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
5876 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5882 mono_aot_get_method_checked (MonoDomain *domain,
5883 MonoMethod *method, MonoError *error)
5890 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5896 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5902 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5908 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5914 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token, MonoError *error)
5921 mono_aot_get_plt_entry (guint8 *code)
5927 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
5933 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5938 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot, MonoError *error)
5946 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5948 g_assert_not_reached ();
5954 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5956 g_assert_not_reached ();
5961 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5963 g_assert_not_reached ();
5968 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5970 g_assert_not_reached ();
5975 mono_aot_get_trampoline (const char *name)
5977 g_assert_not_reached ();
5982 mono_aot_get_unbox_trampoline (MonoMethod *method)
5984 g_assert_not_reached ();
5989 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5991 g_assert_not_reached ();
5996 mono_aot_get_imt_trampoline (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5998 g_assert_not_reached ();
6003 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
6005 g_assert_not_reached ();
6010 mono_aot_set_make_unreadable (gboolean unreadable)
6015 mono_aot_is_pagefault (void *ptr)
6021 mono_aot_handle_pagefault (void *ptr)
6026 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
6028 g_assert_not_reached ();
6033 mono_aot_register_jit_icall (const char *name, gpointer addr)