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_allocations_enabled () ?
929 MANAGED_ALLOCATOR_PROFILER : MANAGED_ALLOCATOR_REGULAR;
931 ref->method = mono_gc_get_managed_allocator_by_type (atype, variant);
932 /* Try to fallback to the slow path version */
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_INTERP_IN) {
1019 ref->method = mini_get_interp_in_wrapper (target->signature);
1020 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) {
1021 MonoMethodSignature *sig = decode_signature (module, p, &p);
1024 ref->method = mini_get_gsharedvt_in_sig_wrapper (sig);
1025 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG) {
1026 MonoMethodSignature *sig = decode_signature (module, p, &p);
1029 ref->method = mini_get_gsharedvt_out_sig_wrapper (sig);
1031 mono_error_set_bad_image_name (error, module->aot_name, "Invalid UNKNOWN wrapper subtype %d", subtype);
1036 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
1037 int subtype = decode_value (p, &p);
1039 if (subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
1040 int rank = decode_value (p, &p);
1041 int elem_size = decode_value (p, &p);
1043 ref->method = mono_marshal_get_array_address (rank, elem_size);
1044 } else if (subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
1047 m = decode_resolve_method_ref (module, p, &p, error);
1053 g_assert (target->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED);
1055 info = mono_marshal_get_wrapper_info (target);
1056 if (info && info->subtype == subtype && info->d.string_ctor.method == m)
1057 ref->method = target;
1063 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
1065 int subtype = decode_value (p, &p);
1068 if (subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1073 if (strcmp (target->name, name) != 0)
1075 ref->method = target;
1077 m = decode_resolve_method_ref (module, p, &p, error);
1081 /* This should only happen when looking for an extra method */
1084 if (mono_marshal_method_from_wrapper (target) == m)
1085 ref->method = target;
1091 case MONO_WRAPPER_CASTCLASS: {
1092 int subtype = decode_value (p, &p);
1094 if (subtype == WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE)
1095 ref->method = mono_marshal_get_castclass_with_cache ();
1096 else if (subtype == WRAPPER_SUBTYPE_ISINST_WITH_CACHE)
1097 ref->method = mono_marshal_get_isinst_with_cache ();
1099 mono_error_set_bad_image_name (error, module->aot_name, "Invalid CASTCLASS wrapper subtype %d", subtype);
1104 case MONO_WRAPPER_RUNTIME_INVOKE: {
1105 int subtype = decode_value (p, &p);
1110 if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC) {
1111 if (strcmp (target->name, "runtime_invoke_dynamic") != 0)
1113 ref->method = target;
1114 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT) {
1115 /* Direct wrapper */
1116 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1119 ref->method = mono_marshal_get_runtime_invoke (m, FALSE);
1120 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) {
1121 /* Virtual direct wrapper */
1122 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1125 ref->method = mono_marshal_get_runtime_invoke (m, TRUE);
1127 MonoMethodSignature *sig;
1129 sig = decode_signature_with_target (module, NULL, p, &p);
1130 info = mono_marshal_get_wrapper_info (target);
1133 if (info->subtype != subtype)
1135 g_assert (info->d.runtime_invoke.sig);
1136 if (mono_metadata_signature_equal (sig, info->d.runtime_invoke.sig))
1137 ref->method = target;
1143 case MONO_WRAPPER_DELEGATE_INVOKE:
1144 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1145 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
1146 gboolean is_inflated = decode_value (p, &p);
1147 WrapperSubtype subtype;
1151 MonoMethod *invoke, *wrapper;
1153 klass = decode_klass_ref (module, p, &p, error);
1157 switch (wrapper_type) {
1158 case MONO_WRAPPER_DELEGATE_INVOKE:
1159 invoke = mono_get_delegate_invoke (klass);
1160 wrapper = mono_marshal_get_delegate_invoke (invoke, NULL);
1162 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1163 invoke = mono_get_delegate_begin_invoke (klass);
1164 wrapper = mono_marshal_get_delegate_begin_invoke (invoke);
1166 case MONO_WRAPPER_DELEGATE_END_INVOKE:
1167 invoke = mono_get_delegate_end_invoke (klass);
1168 wrapper = mono_marshal_get_delegate_end_invoke (invoke);
1171 g_assert_not_reached ();
1176 * Due to the way mini_get_shared_method () works, we could end up with
1177 * multiple copies of the same wrapper.
1179 if (wrapper->klass != target->klass)
1181 ref->method = target;
1183 ref->method = wrapper;
1187 * These wrappers are associated with a signature, not with a method.
1188 * Since we can't decode them into methods, they need a target method.
1193 if (wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1194 subtype = (WrapperSubtype)decode_value (p, &p);
1195 info = mono_marshal_get_wrapper_info (target);
1197 if (info->subtype != subtype)
1200 if (subtype != WRAPPER_SUBTYPE_NONE)
1204 if (sig_matches_target (module, target, p, &p))
1205 ref->method = target;
1211 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
1215 m = decode_resolve_method_ref (module, p, &p, error);
1218 klass = decode_klass_ref (module, p, &p, error);
1221 ref->method = mono_marshal_get_managed_wrapper (m, klass, 0, error);
1222 if (!mono_error_ok (error))
1227 g_assert_not_reached ();
1229 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1230 image_index = decode_value (p, &p);
1231 ref->token = decode_value (p, &p);
1233 image = load_image (module, image_index, error);
1236 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1238 MonoGenericContext ctx;
1241 * These methods do not have a token which resolves them, so we
1242 * resolve them immediately.
1244 klass = decode_klass_ref (module, p, &p, error);
1248 if (target && target->klass != klass)
1251 image_index = decode_value (p, &p);
1252 ref->token = decode_value (p, &p);
1254 image = load_image (module, image_index, error);
1258 ref->method = mono_get_method_checked (image, ref->token, NULL, NULL, error);
1263 memset (&ctx, 0, sizeof (ctx));
1265 if (FALSE && mono_class_is_ginst (klass)) {
1266 ctx.class_inst = mono_class_get_generic_class (klass)->context.class_inst;
1267 ctx.method_inst = NULL;
1269 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, error);
1274 memset (&ctx, 0, sizeof (ctx));
1276 if (!decode_generic_context (module, &ctx, p, &p, error))
1279 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, error);
1283 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1287 klass = decode_klass_ref (module, p, &p, error);
1290 method_type = decode_value (p, &p);
1291 switch (method_type) {
1293 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1296 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1299 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1302 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1305 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1308 mono_error_set_bad_image_name (error, module->aot_name, "Invalid METHODREF_ARRAY method type %d", method_type);
1312 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1313 image_index = decode_value (p, &p);
1314 value = decode_value (p, &p);
1317 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1319 image = load_image (module, image_index, error);
1332 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf, MonoError *error)
1334 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf, error);
1338 * decode_resolve_method_ref_with_target:
1340 * Similar to decode_method_ref, but resolve and return the method itself.
1343 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf, MonoError *error)
1349 if (!decode_method_ref_with_target (module, &ref, target, buf, endbuf, error))
1354 mono_error_set_bad_image_name (error, module->aot_name, "No image found for methodref with target");
1357 return mono_get_method_checked (ref.image, ref.token, NULL, NULL, error);
1361 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
1363 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf, error);
1366 #ifdef ENABLE_AOT_CACHE
1372 * - Add options for controlling the cache size
1373 * - Handle full cache by deleting old assemblies lru style
1374 * - Maybe add a threshold after an assembly is AOT compiled
1375 * - Add options for enabling this for specific main assemblies
1378 /* The cache directory */
1379 static char *cache_dir;
1381 /* The number of assemblies AOTed in this run */
1382 static int cache_count;
1384 /* Whenever to AOT in-process */
1385 static gboolean in_process;
1388 collect_assemblies (gpointer data, gpointer user_data)
1390 MonoAssembly *ass = data;
1391 GSList **l = user_data;
1393 *l = g_slist_prepend (*l, ass);
1396 #define SHA1_DIGEST_LENGTH 20
1399 * get_aot_config_hash:
1401 * Return a hash for all the version information an AOT module depends on.
1403 static G_GNUC_UNUSED char*
1404 get_aot_config_hash (MonoAssembly *assembly)
1407 GSList *l, *assembly_list = NULL;
1410 guint8 digest [SHA1_DIGEST_LENGTH];
1413 build_info = mono_get_runtime_build_info ();
1415 s = g_string_new (build_info);
1417 mono_assembly_foreach (collect_assemblies, &assembly_list);
1420 * The assembly list includes the current assembly as well, no need
1423 for (l = assembly_list; l; l = l->next) {
1424 MonoAssembly *ass = l->data;
1426 g_string_append (s, "_");
1427 g_string_append (s, ass->aname.name);
1428 g_string_append (s, "_");
1429 g_string_append (s, ass->image->guid);
1432 for (i = 0; i < s->len; ++i) {
1433 if (!isalnum (s->str [i]) && s->str [i] != '-')
1437 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1439 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1440 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1441 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1443 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1445 g_string_free (s, TRUE);
1451 aot_cache_init (void)
1455 enable_aot_cache = TRUE;
1460 * aot_cache_load_module:
1462 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1465 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1467 MonoAotCacheConfig *config;
1469 char *fname, *tmp2, *aot_options, *failure_fname;
1481 if (image_is_dynamic (assembly->image))
1484 /* Check in the list of assemblies enabled for aot caching */
1485 config = mono_get_aot_cache_config ();
1489 MonoDomain *domain = mono_domain_get ();
1490 MonoAssembly *entry_assembly = domain->entry_assembly;
1492 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1493 for (l = config->apps; l; l = l->next) {
1496 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1504 for (l = config->assemblies; l; l = l->next) {
1507 if (!strcmp (assembly->aname.name, n))
1517 home = g_get_home_dir ();
1520 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1521 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1522 g_mkdir_with_parents (cache_dir, 0777);
1526 * The same assembly can be used in multiple configurations, i.e. multiple
1527 * versions of the runtime, with multiple versions of dependent assemblies etc.
1528 * To handle this, we compute a version string containing all this information, hash it,
1529 * and use the hash as a filename suffix.
1531 hash = get_aot_config_hash (assembly);
1533 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, MONO_SOLIB_EXT);
1534 fname = g_build_filename (cache_dir, tmp2, NULL);
1538 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1539 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1542 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1546 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1548 * Can't AOT this during startup, so we AOT it when called later from
1549 * mono_aot_get_method ().
1553 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1555 /* Only AOT one assembly per run to avoid slowing down execution too much */
1556 if (cache_count > 0)
1560 /* Check for previous failure */
1561 failure_fname = g_strdup_printf ("%s.failure", fname);
1562 failure_file = fopen (failure_fname, "r");
1564 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1565 g_free (failure_fname);
1568 g_free (failure_fname);
1569 fclose (failure_file);
1572 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1575 * We need to invoke the AOT compiler here. There are multiple approaches:
1576 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1577 * its hard to make the new process load the same set of assemblies.
1578 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1580 * - fork a new process and do the work there.
1583 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1584 /* Maybe due this in another thread ? */
1585 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1587 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1588 failure_fname = g_strdup_printf ("%s.failure", fname);
1589 failure_file = fopen (failure_fname, "a+");
1590 fclose (failure_file);
1591 g_free (failure_fname);
1593 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1597 * - Avoid waiting for the aot process to finish ?
1598 * (less overhead, but multiple processes could aot the same assembly at the same time)
1607 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1608 logfile = fopen (logfile_name, "a+");
1609 g_free (logfile_name);
1611 dup2 (fileno (logfile), 1);
1612 dup2 (fileno (logfile), 2);
1614 aot_options = g_strdup_printf ("outfile=%s", fname);
1615 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1623 waitpid (pid, &exit_status, 0);
1624 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1625 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1627 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1631 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1639 aot_cache_init (void)
1644 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1652 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1656 guint16 *table, *entry;
1659 char *symbol = (char*)name;
1662 symbol = g_strdup_printf ("_%s", name);
1665 /* The first entry points to the hash */
1666 table = (guint16 *)globals [0];
1669 table_size = table [0];
1672 hash = mono_metadata_str_hash (symbol) % table_size;
1674 entry = &table [hash * 2];
1676 /* Search the hash for the index into the globals table */
1678 while (entry [0] != 0) {
1679 guint32 index = entry [0] - 1;
1680 guint32 next = entry [1];
1682 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1684 if (!strcmp (globals [index * 2], symbol)) {
1685 global_index = index;
1690 entry = &table [next * 2];
1696 if (global_index != -1)
1697 *value = globals [global_index * 2 + 1];
1704 char *err = mono_dl_symbol (module, name, value);
1712 find_amodule_symbol (MonoAotModule *amodule, const char *name, gpointer *value)
1714 g_assert (!(amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY));
1716 find_symbol (amodule->sofile, amodule->globals, name, value);
1720 mono_install_load_aot_data_hook (MonoLoadAotDataFunc load_func, MonoFreeAotDataFunc free_func, gpointer user_data)
1722 aot_data_load_func = load_func;
1723 aot_data_free_func = free_func;
1724 aot_data_func_user_data = user_data;
1727 /* Load the separate aot data file for ASSEMBLY */
1729 open_aot_data (MonoAssembly *assembly, MonoAotFileInfo *info, void **ret_handle)
1735 if (aot_data_load_func) {
1736 data = aot_data_load_func (assembly, info->datafile_size, aot_data_func_user_data, ret_handle);
1742 * Use <assembly name>.aotdata as the default implementation if no callback is given
1744 filename = g_strdup_printf ("%s.aotdata", assembly->image->name);
1745 map = mono_file_map_open (filename);
1747 data = mono_file_map (info->datafile_size, MONO_MMAP_READ, mono_file_map_fd (map), 0, ret_handle);
1754 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, guint8 *blob, char **out_msg)
1758 gboolean usable = TRUE;
1759 gboolean full_aot, safepoints;
1760 guint32 excluded_cpu_optimizations;
1762 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1763 msg = g_strdup_printf ("doesn't match assembly");
1767 build_info = mono_get_runtime_build_info ();
1768 if (strlen ((const char *)info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1769 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1772 g_free (build_info);
1774 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1776 if (mono_aot_only && !full_aot) {
1777 msg = g_strdup_printf ("not compiled with --aot=full");
1780 if (!mono_aot_only && full_aot) {
1781 msg = g_strdup_printf ("compiled with --aot=full");
1784 if (mono_llvm_only && !(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1785 msg = g_strdup_printf ("not compiled with --aot=llvmonly");
1788 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1789 msg = g_strdup_printf ("not compiled for debugging");
1793 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1794 if (info->opts & excluded_cpu_optimizations) {
1795 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1799 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1800 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1804 if (info->gc_name_index != -1) {
1805 char *gc_name = (char*)&blob [info->gc_name_index];
1806 const char *current_gc_name = mono_gc_get_gc_name ();
1808 if (strcmp (current_gc_name, gc_name) != 0) {
1809 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1814 safepoints = info->flags & MONO_AOT_FILE_FLAG_SAFEPOINTS;
1816 if (!safepoints && mono_threads_is_coop_enabled ()) {
1817 msg = g_strdup_printf ("not compiled with safepoints");
1826 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1829 get_call_table_entry (void *table, int index)
1831 #if defined(TARGET_ARM)
1836 ins_addr = (guint32*)table + index;
1838 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1840 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1841 return (char*)ins_addr + (offset * 2) + 8 + 1;
1843 offset = (((int)ins & 0xffffff) << 8) >> 8;
1844 return (char*)ins_addr + (offset * 4) + 8;
1846 #elif defined(TARGET_ARM64)
1847 return mono_arch_get_call_target ((guint8*)table + (index * 4) + 4);
1848 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1849 /* The callee expects an ip which points after the call */
1850 return mono_arch_get_call_target ((guint8*)table + (index * 5) + 5);
1852 g_assert_not_reached ();
1860 * Initialize the shared got entries for AMODULE.
1863 init_amodule_got (MonoAotModule *amodule)
1867 MonoJumpInfo *patches;
1868 guint32 got_offsets [128];
1872 /* These can't be initialized in load_aot_module () */
1873 if (amodule->shared_got [0] || amodule->got_initializing)
1876 amodule->got_initializing = TRUE;
1878 mp = mono_mempool_new ();
1879 npatches = amodule->info.nshared_got_entries;
1880 for (i = 0; i < npatches; ++i)
1881 got_offsets [i] = i;
1882 patches = decode_patches (amodule, mp, npatches, FALSE, got_offsets);
1884 for (i = 0; i < npatches; ++i) {
1887 if (ji->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR && !mono_gc_is_moving ()) {
1888 amodule->shared_got [i] = NULL;
1889 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_START && !mono_gc_is_moving ()) {
1890 amodule->shared_got [i] = NULL;
1891 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_BITS && !mono_gc_is_moving ()) {
1892 amodule->shared_got [i] = NULL;
1893 } else if (ji->type == MONO_PATCH_INFO_IMAGE) {
1894 amodule->shared_got [i] = amodule->assembly->image;
1895 } else if (ji->type == MONO_PATCH_INFO_MSCORLIB_GOT_ADDR) {
1896 if (mono_defaults.corlib) {
1897 MonoAotModule *mscorlib_amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
1899 if (mscorlib_amodule)
1900 amodule->shared_got [i] = mscorlib_amodule->got;
1902 amodule->shared_got [i] = amodule->got;
1904 } else if (ji->type == MONO_PATCH_INFO_AOT_MODULE) {
1905 amodule->shared_got [i] = amodule;
1907 amodule->shared_got [i] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, ji, FALSE, &error);
1908 mono_error_assert_ok (&error);
1913 for (i = 0; i < npatches; ++i)
1914 amodule->got [i] = amodule->shared_got [i];
1916 if (amodule->llvm_got) {
1917 for (i = 0; i < npatches; ++i)
1918 amodule->llvm_got [i] = amodule->shared_got [i];
1921 mono_mempool_destroy (mp);
1925 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1927 char *aot_name, *found_aot_name;
1928 MonoAotModule *amodule;
1930 gboolean usable = TRUE;
1931 char *version_symbol = NULL;
1933 gpointer *globals = NULL;
1934 MonoAotFileInfo *info = NULL;
1936 gboolean do_load_image = TRUE;
1937 int align_double, align_int64;
1938 guint8 *aot_data = NULL;
1940 if (mono_compile_aot)
1943 if (assembly->image->aot_module)
1945 * Already loaded. This can happen because the assembly loading code might invoke
1946 * the assembly load hooks multiple times for the same assembly.
1950 if (image_is_dynamic (assembly->image) || assembly->ref_only || mono_domain_get () != mono_get_root_domain ())
1954 if (static_aot_modules)
1955 info = (MonoAotFileInfo *)g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1962 found_aot_name = NULL;
1965 /* Statically linked AOT module */
1966 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1967 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.", aot_name);
1968 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1969 globals = (void **)info->globals;
1972 found_aot_name = g_strdup (aot_name);
1976 if (enable_aot_cache)
1977 sofile = aot_cache_load_module (assembly, &aot_name);
1979 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
1981 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1983 found_aot_name = g_strdup (aot_name);
1985 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' not found: %s", aot_name, err);
1991 char *basename = g_path_get_basename (assembly->image->name);
1992 aot_name = g_strdup_printf ("%s/mono/aot-cache/%s/%s%s", mono_assembly_getrootdir(), MONO_ARCHITECTURE, basename, MONO_SOLIB_EXT);
1994 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1996 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' not found: %s", aot_name, err);
2004 for (l = mono_aot_paths; l; l = l->next) {
2005 char *path = l->data;
2007 char *basename = g_path_get_basename (assembly->image->name);
2008 aot_name = g_strdup_printf ("%s/%s%s", path, basename, MONO_SOLIB_EXT);
2009 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
2011 found_aot_name = g_strdup (aot_name);
2013 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' not found: %s", aot_name, err);
2023 if (mono_aot_only && !mono_use_interpreter && assembly->image->tables [MONO_TABLE_METHOD].rows) {
2024 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
2025 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
2033 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
2034 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
2037 // Copy aotid to MonoImage
2038 memcpy(&assembly->image->aotid, info->aotid, 16);
2040 if (version_symbol) {
2041 /* Old file format */
2042 version = atoi (version_symbol);
2045 version = info->version;
2048 if (version != MONO_AOT_FILE_VERSION) {
2049 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
2055 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2056 aot_data = open_aot_data (assembly, info, &handle);
2058 blob = aot_data + info->table_offsets [MONO_AOT_TABLE_BLOB];
2060 blob = (guint8 *)info->blob;
2063 usable = check_usable (assembly, info, blob, &msg);
2067 if (mono_aot_only && !mono_use_interpreter) {
2068 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", found_aot_name, msg);
2070 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.", found_aot_name, msg);
2073 g_free (found_aot_name);
2075 mono_dl_close (sofile);
2076 assembly->image->aot_module = NULL;
2081 align_double = MONO_ABI_ALIGNOF (double);
2082 align_int64 = MONO_ABI_ALIGNOF (gint64);
2083 g_assert (info->double_align == align_double);
2084 g_assert (info->long_align == align_int64);
2085 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
2087 amodule = g_new0 (MonoAotModule, 1);
2088 amodule->aot_name = found_aot_name;
2089 amodule->assembly = assembly;
2091 memcpy (&amodule->info, info, sizeof (*info));
2093 amodule->got = (void **)amodule->info.jit_got;
2094 amodule->llvm_got = (void **)amodule->info.llvm_got;
2095 amodule->globals = globals;
2096 amodule->sofile = sofile;
2097 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
2098 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2099 amodule->shared_got = g_new0 (gpointer, info->nshared_got_entries);
2101 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2102 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
2103 amodule->tables [i] = aot_data + info->table_offsets [i];
2106 mono_os_mutex_init_recursive (&amodule->mutex);
2108 /* Read image table */
2110 guint32 table_len, i;
2113 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA)
2114 table = amodule->tables [MONO_AOT_TABLE_IMAGE_TABLE];
2116 table = (char *)info->image_table;
2119 table_len = *(guint32*)table;
2120 table += sizeof (guint32);
2121 amodule->image_table = g_new0 (MonoImage*, table_len);
2122 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
2123 amodule->image_guids = g_new0 (char*, table_len);
2124 amodule->image_table_len = table_len;
2125 for (i = 0; i < table_len; ++i) {
2126 MonoAssemblyName *aname = &(amodule->image_names [i]);
2128 aname->name = g_strdup (table);
2129 table += strlen (table) + 1;
2130 amodule->image_guids [i] = g_strdup (table);
2131 table += strlen (table) + 1;
2133 aname->culture = g_strdup (table);
2134 table += strlen (table) + 1;
2135 memcpy (aname->public_key_token, table, strlen (table) + 1);
2136 table += strlen (table) + 1;
2138 table = (char *)ALIGN_PTR_TO (table, 8);
2139 aname->flags = *(guint32*)table;
2141 aname->major = *(guint32*)table;
2143 aname->minor = *(guint32*)table;
2145 aname->build = *(guint32*)table;
2147 aname->revision = *(guint32*)table;
2152 amodule->jit_code_start = (guint8 *)info->jit_code_start;
2153 amodule->jit_code_end = (guint8 *)info->jit_code_end;
2154 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2155 amodule->blob = amodule->tables [MONO_AOT_TABLE_BLOB];
2156 amodule->method_info_offsets = amodule->tables [MONO_AOT_TABLE_METHOD_INFO_OFFSETS];
2157 amodule->ex_info_offsets = amodule->tables [MONO_AOT_TABLE_EX_INFO_OFFSETS];
2158 amodule->class_info_offsets = amodule->tables [MONO_AOT_TABLE_CLASS_INFO_OFFSETS];
2159 amodule->class_name_table = amodule->tables [MONO_AOT_TABLE_CLASS_NAME];
2160 amodule->extra_method_table = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_TABLE];
2161 amodule->extra_method_info_offsets = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS];
2162 amodule->got_info_offsets = amodule->tables [MONO_AOT_TABLE_GOT_INFO_OFFSETS];
2163 amodule->llvm_got_info_offsets = amodule->tables [MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS];
2165 amodule->blob = info->blob;
2166 amodule->method_info_offsets = (guint32 *)info->method_info_offsets;
2167 amodule->ex_info_offsets = (guint32 *)info->ex_info_offsets;
2168 amodule->class_info_offsets = (guint32 *)info->class_info_offsets;
2169 amodule->class_name_table = (guint16 *)info->class_name_table;
2170 amodule->extra_method_table = (guint32 *)info->extra_method_table;
2171 amodule->extra_method_info_offsets = (guint32 *)info->extra_method_info_offsets;
2172 amodule->got_info_offsets = info->got_info_offsets;
2173 amodule->llvm_got_info_offsets = info->llvm_got_info_offsets;
2175 amodule->unbox_trampolines = (guint32 *)info->unbox_trampolines;
2176 amodule->unbox_trampolines_end = (guint32 *)info->unbox_trampolines_end;
2177 amodule->unbox_trampoline_addresses = (guint32 *)info->unbox_trampoline_addresses;
2178 amodule->unwind_info = (guint8 *)info->unwind_info;
2179 amodule->mem_begin = amodule->jit_code_start;
2180 amodule->mem_end = (guint8 *)info->mem_end;
2181 amodule->plt = (guint8 *)info->plt;
2182 amodule->plt_end = (guint8 *)info->plt_end;
2183 amodule->mono_eh_frame = (guint8 *)info->mono_eh_frame;
2184 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = (guint8 *)info->specific_trampolines;
2185 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = (guint8 *)info->static_rgctx_trampolines;
2186 amodule->trampolines [MONO_AOT_TRAMP_IMT] = (guint8 *)info->imt_trampolines;
2187 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = (guint8 *)info->gsharedvt_arg_trampolines;
2189 if (!strcmp (assembly->aname.name, "mscorlib"))
2190 mscorlib_aot_module = amodule;
2192 /* Compute method addresses */
2193 amodule->methods = (void **)g_malloc0 (amodule->info.nmethods * sizeof (gpointer));
2194 for (i = 0; i < amodule->info.nmethods; ++i) {
2197 if (amodule->info.llvm_get_method) {
2198 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2200 addr = get_method (i);
2203 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2204 if (!addr && amodule->info.method_addresses) {
2205 addr = get_call_table_entry (amodule->info.method_addresses, i);
2207 if (addr == amodule->info.method_addresses)
2211 amodule->methods [i] = GINT_TO_POINTER (-1);
2213 amodule->methods [i] = addr;
2216 if (make_unreadable) {
2217 #ifndef TARGET_WIN32
2219 guint8 *page_start, *page_end;
2222 addr = amodule->mem_begin;
2224 len = amodule->mem_end - amodule->mem_begin;
2226 /* Round down in both directions to avoid modifying data which is not ours */
2227 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2228 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
2229 if (page_end > page_start) {
2230 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
2231 g_assert (err == 0);
2236 /* Compute the boundaries of LLVM code */
2237 if (info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM)
2238 compute_llvm_code_range (amodule, &amodule->llvm_code_start, &amodule->llvm_code_end);
2242 if (amodule->jit_code_start) {
2243 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->jit_code_start);
2244 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->jit_code_end);
2246 if (amodule->llvm_code_start) {
2247 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->llvm_code_start);
2248 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->llvm_code_end);
2251 g_hash_table_insert (aot_modules, assembly, amodule);
2254 if (amodule->jit_code_start)
2255 mono_jit_info_add_aot_module (assembly->image, amodule->jit_code_start, amodule->jit_code_end);
2256 if (amodule->llvm_code_start)
2257 mono_jit_info_add_aot_module (assembly->image, amodule->llvm_code_start, amodule->llvm_code_end);
2259 assembly->image->aot_module = amodule;
2261 if (mono_aot_only && !mono_llvm_only) {
2263 find_amodule_symbol (amodule, "specific_trampolines_page", (gpointer *)&code);
2264 amodule->use_page_trampolines = code != NULL;
2265 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2269 * Register the plt region as a single trampoline so we can unwind from this code
2271 mono_aot_tramp_info_register (
2272 mono_tramp_info_create (
2275 amodule->plt_end - amodule->plt,
2277 mono_unwind_get_cie_program ()
2283 * Since we store methoddef and classdef tokens when referring to methods/classes in
2284 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2285 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2286 * non-lazily, since we can't handle out-of-date errors later.
2287 * The cached class info also depends on the exact assemblies.
2289 if (do_load_image) {
2290 for (i = 0; i < amodule->image_table_len; ++i) {
2292 load_image (amodule, i, &error);
2293 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2297 if (amodule->out_of_date) {
2298 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: Module %s is unusable because a dependency is out-of-date.", assembly->image->name);
2300 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);
2302 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' found.", found_aot_name);
2307 * mono_aot_register_module:
2309 * This should be called by embedding code to register AOT modules statically linked
2310 * into the executable. AOT_INFO should be the value of the
2311 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2314 mono_aot_register_module (gpointer *aot_info)
2318 MonoAotFileInfo *info = (MonoAotFileInfo *)aot_info;
2320 g_assert (info->version == MONO_AOT_FILE_VERSION);
2322 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
2323 globals = (void **)info->globals;
2327 aname = (char *)info->assembly_name;
2329 /* This could be called before startup */
2333 if (!static_aot_modules)
2334 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2336 g_hash_table_insert (static_aot_modules, aname, info);
2343 mono_aot_init (void)
2345 mono_os_mutex_init_recursive (&aot_mutex);
2346 mono_os_mutex_init_recursive (&aot_page_mutex);
2347 aot_modules = g_hash_table_new (NULL, NULL);
2349 mono_install_assembly_load_hook (load_aot_module, NULL);
2350 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2352 char *lastaot = g_getenv ("MONO_LASTAOT");
2354 mono_last_aot_method = atoi (lastaot);
2361 mono_aot_cleanup (void)
2363 if (aot_jit_icall_hash)
2364 g_hash_table_destroy (aot_jit_icall_hash);
2366 g_hash_table_destroy (aot_modules);
2370 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2377 info->vtable_size = decode_value (buf, &buf);
2378 if (info->vtable_size == -1)
2381 flags = decode_value (buf, &buf);
2382 info->ghcimpl = (flags >> 0) & 0x1;
2383 info->has_finalize = (flags >> 1) & 0x1;
2384 info->has_cctor = (flags >> 2) & 0x1;
2385 info->has_nested_classes = (flags >> 3) & 0x1;
2386 info->blittable = (flags >> 4) & 0x1;
2387 info->has_references = (flags >> 5) & 0x1;
2388 info->has_static_refs = (flags >> 6) & 0x1;
2389 info->no_special_static_fields = (flags >> 7) & 0x1;
2390 info->is_generic_container = (flags >> 8) & 0x1;
2392 if (info->has_cctor) {
2393 res = decode_method_ref (module, &ref, buf, &buf, &error);
2394 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
2397 info->cctor_token = ref.token;
2399 if (info->has_finalize) {
2400 res = decode_method_ref (module, &ref, buf, &buf, &error);
2401 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
2404 info->finalize_image = ref.image;
2405 info->finalize_token = ref.token;
2408 info->instance_size = decode_value (buf, &buf);
2409 info->class_size = decode_value (buf, &buf);
2410 info->packing_size = decode_value (buf, &buf);
2411 info->min_align = decode_value (buf, &buf);
2419 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot, MonoError *error)
2422 MonoClass *klass = vtable->klass;
2423 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2425 MonoCachedClassInfo class_info;
2430 MonoError inner_error;
2434 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2437 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2440 err = decode_cached_class_info (amodule, &class_info, p, &p);
2444 for (i = 0; i < slot; ++i) {
2445 decode_method_ref (amodule, &ref, p, &p, &inner_error);
2446 mono_error_cleanup (&inner_error); /* FIXME don't swallow the error */
2449 res = decode_method_ref (amodule, &ref, p, &p, &inner_error);
2450 mono_error_cleanup (&inner_error); /* FIXME don't swallow the error */
2453 if (ref.no_aot_trampoline)
2456 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2459 addr = mono_aot_get_method_from_token (domain, ref.image, ref.token, error);
2464 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2466 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2470 if (klass->rank || !klass->type_token || !amodule)
2473 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2475 err = decode_cached_class_info (amodule, res, p, &p);
2483 * mono_aot_get_class_from_name:
2485 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2486 * using a cache stored in the AOT file.
2487 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2489 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2493 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2495 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
2496 guint16 *table, *entry;
2499 char full_name_buf [1024];
2501 const char *name2, *name_space2;
2503 guint32 cols [MONO_TYPEDEF_SIZE];
2504 GHashTable *nspace_table;
2506 if (!amodule || !amodule->class_name_table)
2509 amodule_lock (amodule);
2513 /* First look in the cache */
2514 if (!amodule->name_cache)
2515 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2516 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2518 *klass = (MonoClass *)g_hash_table_lookup (nspace_table, name);
2520 amodule_unlock (amodule);
2525 table_size = amodule->class_name_table [0];
2526 table = amodule->class_name_table + 1;
2528 if (name_space [0] == '\0')
2529 full_name = g_strdup_printf ("%s", name);
2531 if (strlen (name_space) + strlen (name) < 1000) {
2532 sprintf (full_name_buf, "%s.%s", name_space, name);
2533 full_name = full_name_buf;
2535 full_name = g_strdup_printf ("%s.%s", name_space, name);
2538 hash = mono_metadata_str_hash (full_name) % table_size;
2539 if (full_name != full_name_buf)
2542 entry = &table [hash * 2];
2544 if (entry [0] != 0) {
2545 t = &image->tables [MONO_TABLE_TYPEDEF];
2548 guint32 index = entry [0];
2549 guint32 next = entry [1];
2550 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2552 name_table_accesses ++;
2554 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2556 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2557 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2559 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2561 amodule_unlock (amodule);
2562 *klass = mono_class_get_checked (image, token, &error);
2563 if (!mono_error_ok (&error))
2564 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2568 amodule_lock (amodule);
2569 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2570 if (!nspace_table) {
2571 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2572 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2574 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2575 amodule_unlock (amodule);
2581 entry = &table [next * 2];
2588 amodule_unlock (amodule);
2593 /* Compute the boundaries of the LLVM code for AMODULE. */
2595 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end)
2598 int version, fde_count;
2601 if (amodule->info.llvm_get_method) {
2602 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2604 *code_start = (guint8 *)get_method (-1);
2605 *code_end = (guint8 *)get_method (-2);
2607 g_assert (*code_end > *code_start);
2611 g_assert (amodule->mono_eh_frame);
2613 p = amodule->mono_eh_frame;
2615 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2619 g_assert (version == 3);
2622 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2624 fde_count = *(guint32*)p;
2628 if (fde_count > 0) {
2629 *code_start = (guint8 *)amodule->methods [table [0]];
2630 *code_end = (guint8*)amodule->methods [table [(fde_count - 1) * 2]] + table [fde_count * 2];
2638 is_llvm_code (MonoAotModule *amodule, guint8 *code)
2640 if ((guint8*)code >= amodule->llvm_code_start && (guint8*)code < amodule->llvm_code_end)
2647 is_thumb_code (MonoAotModule *amodule, guint8 *code)
2649 if (is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_THUMB))
2656 * decode_llvm_mono_eh_frame:
2658 * Decode the EH information emitted by our modified LLVM compiler and construct a
2659 * MonoJitInfo structure from it.
2660 * If JINFO is NULL, set OUT_LLVM_CLAUSES to the number of llvm level clauses.
2661 * This function is async safe when called in async context.
2664 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain, MonoJitInfo *jinfo,
2665 guint8 *code, guint32 code_len,
2666 MonoJitExceptionInfo *clauses, int num_clauses,
2668 int *this_reg, int *this_offset, int *out_llvm_clauses)
2670 guint8 *p, *code1, *code2;
2671 guint8 *fde, *cie, *code_start, *code_end;
2672 int version, fde_count;
2674 int i, pos, left, right;
2675 MonoJitExceptionInfo *ei;
2676 guint32 fde_len, ei_len, nested_len, nindex;
2677 gpointer *type_info;
2678 MonoLLVMFDEInfo info;
2682 async = mono_thread_info_is_async_context ();
2684 if (!amodule->mono_eh_frame) {
2686 *out_llvm_clauses = num_clauses;
2689 memcpy (jinfo->clauses, clauses, num_clauses * sizeof (MonoJitExceptionInfo));
2693 g_assert (amodule->mono_eh_frame && code);
2695 p = amodule->mono_eh_frame;
2697 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2701 g_assert (version == 3);
2703 /* func_encoding = *p; */
2705 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2707 fde_count = *(guint32*)p;
2711 /* There is +1 entry in the table */
2712 cie = p + ((fde_count + 1) * 8);
2714 /* Binary search in the table to find the entry for code */
2718 pos = (left + right) / 2;
2720 /* The table contains method index/fde offset pairs */
2721 g_assert (table [(pos * 2)] != -1);
2722 code1 = (guint8 *)amodule->methods [table [(pos * 2)]];
2723 if (pos + 1 == fde_count) {
2724 code2 = amodule->llvm_code_end;
2726 g_assert (table [(pos + 1) * 2] != -1);
2727 code2 = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2732 else if (code >= code2)
2738 code_start = (guint8 *)amodule->methods [table [(pos * 2)]];
2739 if (pos + 1 == fde_count) {
2740 /* The +1 entry in the table contains the length of the last method */
2741 int len = table [(pos + 1) * 2];
2742 code_end = code_start + len;
2744 code_end = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2747 code_len = code_end - code_start;
2749 g_assert (code >= code_start && code < code_end);
2751 if (is_thumb_code (amodule, code_start))
2752 /* Clear thumb flag */
2753 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2755 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2756 /* This won't overflow because there is +1 entry in the table */
2757 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2759 /* Compute lengths */
2760 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info, NULL, NULL, NULL);
2763 /* These are leaked, but the leak is bounded */
2764 ei = mono_domain_alloc0_lock_free (domain, info.ex_info_len * sizeof (MonoJitExceptionInfo));
2765 type_info = mono_domain_alloc0_lock_free (domain, info.ex_info_len * sizeof (gpointer));
2766 unw_info = mono_domain_alloc0_lock_free (domain, info.unw_info_len);
2768 ei = (MonoJitExceptionInfo *)g_malloc0 (info.ex_info_len * sizeof (MonoJitExceptionInfo));
2769 type_info = (gpointer *)g_malloc0 (info.ex_info_len * sizeof (gpointer));
2770 unw_info = (guint8*)g_malloc0 (info.unw_info_len);
2772 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info, ei, type_info, unw_info);
2774 ei_len = info.ex_info_len;
2775 *this_reg = info.this_reg;
2776 *this_offset = info.this_offset;
2779 * LLVM might represent one IL region with multiple regions.
2782 /* Count number of nested clauses */
2784 for (i = 0; i < ei_len; ++i) {
2785 /* This might be unaligned */
2786 gint32 cindex1 = read32 (type_info [i]);
2789 for (l = nesting [cindex1]; l; l = l->next)
2794 *out_llvm_clauses = ei_len + nested_len;
2798 /* Store the unwind info addr/length in the MonoJitInfo structure itself so its async safe */
2799 MonoUnwindJitInfo *jinfo_unwind = mono_jit_info_get_unwind_info (jinfo);
2800 g_assert (jinfo_unwind);
2801 jinfo_unwind->unw_info = unw_info;
2802 jinfo_unwind->unw_info_len = info.unw_info_len;
2804 for (i = 0; i < ei_len; ++i) {
2806 * clauses contains the original IL exception info saved by the AOT
2807 * compiler, we have to combine that with the information produced by LLVM
2809 /* The type_info entries contain IL clause indexes */
2810 int clause_index = read32 (type_info [i]);
2811 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2812 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2814 g_assert (clause_index < num_clauses);
2815 jei->flags = orig_jei->flags;
2816 jei->data.catch_class = orig_jei->data.catch_class;
2818 jei->try_start = ei [i].try_start;
2819 jei->try_end = ei [i].try_end;
2820 jei->handler_start = ei [i].handler_start;
2821 jei->clause_index = clause_index;
2823 if (is_thumb_code (amodule, (guint8 *)jei->try_start)) {
2824 jei->try_start = (void*)((mgreg_t)jei->try_start & ~1);
2825 jei->try_end = (void*)((mgreg_t)jei->try_end & ~1);
2826 /* Make sure we transition to thumb when a handler starts */
2827 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2831 /* See exception_cb () in mini-llvm.c as to why this is needed */
2833 for (i = 0; i < ei_len; ++i) {
2834 gint32 cindex1 = read32 (type_info [i]);
2837 for (l = nesting [cindex1]; l; l = l->next) {
2838 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2839 MonoJitExceptionInfo *nesting_ei;
2840 MonoJitExceptionInfo *nesting_clause = &clauses [nesting_cindex];
2842 nesting_ei = &jinfo->clauses [nindex];
2845 memcpy (nesting_ei, &jinfo->clauses [i], sizeof (MonoJitExceptionInfo));
2846 nesting_ei->flags = nesting_clause->flags;
2847 nesting_ei->data.catch_class = nesting_clause->data.catch_class;
2848 nesting_ei->clause_index = nesting_cindex;
2851 g_assert (nindex == ei_len + nested_len);
2855 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2859 if (async_context) {
2860 res = mono_domain_alloc0_lock_free (domain, size);
2861 InterlockedExchangeAdd (&async_jit_info_size, size);
2863 res = mono_domain_alloc0 (domain, size);
2869 * LOCKING: Acquires the domain lock.
2870 * In async context, this is async safe.
2873 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2874 MonoMethod *method, guint8* ex_info,
2875 guint8 *code, guint32 code_len)
2878 int i, buf_len, num_clauses, len;
2880 MonoJitInfoFlags flags = JIT_INFO_NONE;
2881 guint unwind_info, eflags;
2882 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2883 gboolean from_llvm, has_gc_map;
2885 int try_holes_info_size, num_holes;
2886 int this_reg = 0, this_offset = 0;
2889 /* Load the method info from the AOT file */
2890 async = mono_thread_info_is_async_context ();
2893 eflags = decode_value (p, &p);
2894 has_generic_jit_info = (eflags & 1) != 0;
2895 has_dwarf_unwind_info = (eflags & 2) != 0;
2896 has_clauses = (eflags & 4) != 0;
2897 has_seq_points = (eflags & 8) != 0;
2898 from_llvm = (eflags & 16) != 0;
2899 has_try_block_holes = (eflags & 32) != 0;
2900 has_gc_map = (eflags & 64) != 0;
2901 has_arch_eh_jit_info = (eflags & 128) != 0;
2903 if (has_dwarf_unwind_info) {
2904 unwind_info = decode_value (p, &p);
2905 g_assert (unwind_info < (1 << 30));
2907 unwind_info = decode_value (p, &p);
2909 if (has_generic_jit_info)
2910 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2912 if (has_try_block_holes) {
2913 num_holes = decode_value (p, &p);
2914 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2915 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2917 num_holes = try_holes_info_size = 0;
2920 if (has_arch_eh_jit_info) {
2921 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2922 /* Overwrite the original code_len which includes alignment padding */
2923 code_len = decode_value (p, &p);
2926 /* Exception table */
2928 num_clauses = decode_value (p, &p);
2933 MonoJitExceptionInfo *clauses;
2937 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2941 if (num_clauses < 16) {
2942 clauses = g_newa (MonoJitExceptionInfo, num_clauses);
2943 nesting = g_newa (GSList*, num_clauses);
2945 clauses = alloc0_jit_info_data (domain, sizeof (MonoJitExceptionInfo) * num_clauses, TRUE);
2946 nesting = alloc0_jit_info_data (domain, sizeof (GSList*) * num_clauses, TRUE);
2948 memset (clauses, 0, sizeof (MonoJitExceptionInfo) * num_clauses);
2949 memset (nesting, 0, sizeof (GSList*) * num_clauses);
2951 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2952 nesting = g_new0 (GSList*, num_clauses);
2955 for (i = 0; i < num_clauses; ++i) {
2956 MonoJitExceptionInfo *ei = &clauses [i];
2958 ei->flags = decode_value (p, &p);
2960 if (!(ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)) {
2961 int len = decode_value (p, &p);
2967 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
2968 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2973 ei->clause_index = i;
2975 ei->try_offset = decode_value (p, &p);
2976 ei->try_len = decode_value (p, &p);
2977 ei->handler_offset = decode_value (p, &p);
2978 ei->handler_len = decode_value (p, &p);
2980 /* Read the list of nesting clauses */
2982 int nesting_index = decode_value (p, &p);
2983 if (nesting_index == -1)
2987 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2991 flags |= JIT_INFO_HAS_UNWIND_INFO;
2993 int num_llvm_clauses;
2994 /* Get the length first */
2995 decode_llvm_mono_eh_frame (amodule, domain, NULL, code, code_len, clauses, num_clauses, nesting, &this_reg, &this_offset, &num_llvm_clauses);
2996 len = mono_jit_info_size (flags, num_llvm_clauses, num_holes);
2997 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
2998 mono_jit_info_init (jinfo, method, code, code_len, flags, num_llvm_clauses, num_holes);
3000 decode_llvm_mono_eh_frame (amodule, domain, jinfo, code, code_len, clauses, num_clauses, nesting, &this_reg, &this_offset, NULL);
3004 for (i = 0; i < num_clauses; ++i)
3005 g_slist_free (nesting [i]);
3009 len = mono_jit_info_size (flags, num_clauses, num_holes);
3010 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
3011 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
3013 for (i = 0; i < jinfo->num_clauses; ++i) {
3014 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3016 ei->flags = decode_value (p, &p);
3018 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
3019 /* Not used for catch clauses */
3020 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
3021 ei->exvar_offset = decode_value (p, &p);
3023 ei->exvar_offset = decode_value (p, &p);
3026 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
3027 ei->data.filter = code + decode_value (p, &p);
3029 int len = decode_value (p, &p);
3035 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
3036 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3041 ei->try_start = code + decode_value (p, &p);
3042 ei->try_end = code + decode_value (p, &p);
3043 ei->handler_start = code + decode_value (p, &p);
3046 jinfo->unwind_info = unwind_info;
3047 jinfo->domain_neutral = 0;
3048 jinfo->from_aot = 1;
3051 if (has_try_block_holes) {
3052 MonoTryBlockHoleTableJitInfo *table;
3054 g_assert (jinfo->has_try_block_holes);
3056 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
3059 table->num_holes = (guint16)num_holes;
3060 for (i = 0; i < num_holes; ++i) {
3061 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
3062 hole->clause = decode_value (p, &p);
3063 hole->length = decode_value (p, &p);
3064 hole->offset = decode_value (p, &p);
3068 if (has_arch_eh_jit_info) {
3069 MonoArchEHJitInfo *eh_info;
3071 g_assert (jinfo->has_arch_eh_info);
3073 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
3074 eh_info->stack_size = decode_value (p, &p);
3075 eh_info->epilog_size = decode_value (p, &p);
3079 /* The rest is not needed in async mode */
3080 jinfo->async = TRUE;
3081 jinfo->d.aot_info = amodule;
3086 if (has_generic_jit_info) {
3087 MonoGenericJitInfo *gi;
3090 g_assert (jinfo->has_generic_jit_info);
3092 gi = mono_jit_info_get_generic_jit_info (jinfo);
3095 gi->nlocs = decode_value (p, &p);
3097 gi->locations = (MonoDwarfLocListEntry *)alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
3098 for (i = 0; i < gi->nlocs; ++i) {
3099 MonoDwarfLocListEntry *entry = &gi->locations [i];
3101 entry->is_reg = decode_value (p, &p);
3102 entry->reg = decode_value (p, &p);
3104 entry->offset = decode_value (p, &p);
3106 entry->from = decode_value (p, &p);
3107 entry->to = decode_value (p, &p);
3112 gi->has_this = this_reg != -1;
3113 gi->this_reg = this_reg;
3114 gi->this_offset = this_offset;
3116 gi->has_this = decode_value (p, &p);
3117 gi->this_reg = decode_value (p, &p);
3118 gi->this_offset = decode_value (p, &p);
3122 len = decode_value (p, &p);
3126 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p, &error);
3127 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3130 gi->generic_sharing_context = alloc0_jit_info_data (domain, sizeof (MonoGenericSharingContext), async);
3131 if (decode_value (p, &p)) {
3133 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
3135 gsctx->is_gsharedvt = TRUE;
3139 if (method && has_seq_points) {
3140 MonoSeqPointInfo *seq_points;
3142 p += mono_seq_point_info_read (&seq_points, p, FALSE);
3144 mono_domain_lock (domain);
3145 /* This could be set already since this function can be called more than once for the same method */
3146 if (!g_hash_table_lookup (domain_jit_info (domain)->seq_points, method))
3147 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
3149 mono_seq_point_info_free (seq_points);
3150 mono_domain_unlock (domain);
3153 /* Load debug info */
3154 buf_len = decode_value (p, &p);
3156 mono_debug_add_aot_method (domain, method, code, p, buf_len);
3160 int map_size = decode_value (p, &p);
3161 /* The GC map requires 4 bytes of alignment */
3162 while ((guint64)(gsize)p % 4)
3168 if (amodule != jinfo->d.method->klass->image->aot_module) {
3171 ji_to_amodule = g_hash_table_new (NULL, NULL);
3172 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
3180 amodule_contains_code_addr (MonoAotModule *amodule, guint8 *code)
3182 return (code >= amodule->jit_code_start && code <= amodule->jit_code_end) ||
3183 (code >= amodule->llvm_code_start && code <= amodule->llvm_code_end);
3187 * mono_aot_get_unwind_info:
3189 * Return a pointer to the DWARF unwind info belonging to JI.
3192 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
3194 MonoAotModule *amodule;
3196 guint8 *code = (guint8 *)ji->code_start;
3199 amodule = (MonoAotModule *)ji->d.aot_info;
3201 amodule = (MonoAotModule *)jinfo_get_method (ji)->klass->image->aot_module;
3203 g_assert (ji->from_aot);
3205 if (!amodule_contains_code_addr (amodule, code)) {
3206 /* ji belongs to a different aot module than amodule */
3208 g_assert (ji_to_amodule);
3209 amodule = (MonoAotModule *)g_hash_table_lookup (ji_to_amodule, ji);
3211 g_assert (amodule_contains_code_addr (amodule, code));
3215 p = amodule->unwind_info + ji->unwind_info;
3216 *unwind_info_len = decode_value (p, &p);
3221 msort_method_addresses_internal (gpointer *array, int *indexes, int lo, int hi, gpointer *scratch, int *scratch_indexes)
3223 int mid = (lo + hi) / 2;
3230 for (i = lo; i < hi; ++i)
3231 if (array [i] > array [i + 1])
3234 /* Already sorted */
3238 msort_method_addresses_internal (array, indexes, lo, mid, scratch, scratch_indexes);
3239 msort_method_addresses_internal (array, indexes, mid + 1, hi, scratch, scratch_indexes);
3241 if (array [mid] < array [mid + 1])
3247 for (i = lo; i <= hi; i ++) {
3248 if (t_lo <= mid && ((t_hi > hi) || array [t_lo] < array [t_hi])) {
3249 scratch [i] = array [t_lo];
3250 scratch_indexes [i] = indexes [t_lo];
3253 scratch [i] = array [t_hi];
3254 scratch_indexes [i] = indexes [t_hi];
3258 for (i = lo; i <= hi; ++i) {
3259 array [i] = scratch [i];
3260 indexes [i] = scratch_indexes [i];
3265 msort_method_addresses (gpointer *array, int *indexes, int len)
3268 int *scratch_indexes;
3270 scratch = g_new (gpointer, len);
3271 scratch_indexes = g_new (int, len);
3272 msort_method_addresses_internal (array, indexes, 0, len - 1, scratch, scratch_indexes);
3274 g_free (scratch_indexes);
3278 * mono_aot_find_jit_info:
3280 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3281 * to the jit info tables.
3282 * FIXME: Large sizes in the lock free allocator
3285 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3288 int pos, left, right, code_len;
3289 int method_index, table_len;
3291 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
3292 MonoMethod *method = NULL;
3294 guint8 *code, *ex_info, *p;
3298 guint8 *code1, *code2;
3305 nmethods = amodule->info.nmethods;
3307 if (domain != mono_get_root_domain ())
3311 if (!amodule_contains_code_addr (amodule, (guint8 *)addr))
3314 async = mono_thread_info_is_async_context ();
3316 /* Compute a sorted table mapping code to method indexes. */
3317 if (!amodule->sorted_methods) {
3319 gpointer *methods = g_new0 (gpointer, nmethods);
3320 int *method_indexes = g_new0 (int, nmethods);
3321 int methods_len = 0;
3323 for (i = 0; i < nmethods; ++i) {
3324 /* Skip the -1 entries to speed up sorting */
3325 if (amodule->methods [i] == GINT_TO_POINTER (-1))
3327 methods [methods_len] = amodule->methods [i];
3328 method_indexes [methods_len] = i;
3331 /* Use a merge sort as this is mostly sorted */
3332 msort_method_addresses (methods, method_indexes, methods_len);
3333 for (i = 0; i < methods_len -1; ++i)
3334 g_assert (methods [i] <= methods [i + 1]);
3335 amodule->sorted_methods_len = methods_len;
3336 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_methods, methods, NULL) != NULL)
3337 /* Somebody got in before us */
3339 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_method_indexes, method_indexes, NULL) != NULL)
3340 /* Somebody got in before us */
3341 g_free (method_indexes);
3344 /* Binary search in the sorted_methods table */
3345 methods = amodule->sorted_methods;
3346 methods_len = amodule->sorted_methods_len;
3347 code = (guint8 *)addr;
3349 right = methods_len;
3351 pos = (left + right) / 2;
3353 code1 = (guint8 *)methods [pos];
3354 if (pos + 1 == methods_len) {
3355 if (code1 >= amodule->jit_code_start && code1 < amodule->jit_code_end)
3356 code2 = amodule->jit_code_end;
3358 code2 = amodule->llvm_code_end;
3360 code2 = (guint8 *)methods [pos + 1];
3365 else if (code >= code2)
3371 g_assert (addr >= methods [pos]);
3372 if (pos + 1 < methods_len)
3373 g_assert (addr < methods [pos + 1]);
3374 method_index = amodule->sorted_method_indexes [pos];
3376 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3378 JitInfoMap *table = amodule->async_jit_info_table;
3382 len = table [0].method_index;
3383 for (i = 1; i < len; ++i) {
3384 if (table [i].method_index == method_index)
3385 return table [i].jinfo;
3390 code = (guint8 *)amodule->methods [method_index];
3391 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3393 if (pos == methods_len - 1) {
3394 if (code >= amodule->jit_code_start && code < amodule->jit_code_end)
3395 code_len = amodule->jit_code_end - code;
3397 code_len = amodule->llvm_code_end - code;
3399 code_len = (guint8*)methods [pos + 1] - (guint8*)methods [pos];
3402 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3404 /* Might be a wrapper/extra method */
3406 if (amodule->extra_methods) {
3407 amodule_lock (amodule);
3408 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3409 amodule_unlock (amodule);
3415 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3417 * This is hit for extra methods which are called directly, so they are
3418 * not in amodule->extra_methods.
3420 table_len = amodule->extra_method_info_offsets [0];
3421 table = amodule->extra_method_info_offsets + 1;
3428 pos = ((left + right) / 2);
3430 g_assert (pos < table_len);
3432 if (table [pos * 2] < method_index)
3434 else if (table [pos * 2] > method_index)
3440 p = amodule->blob + table [(pos * 2) + 1];
3441 method = decode_resolve_method_ref (amodule, p, &p, &error);
3442 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3444 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3448 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3449 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3451 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3458 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3460 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code, code_len);
3462 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3464 /* Add it to the normal JitInfo tables */
3466 JitInfoMap *old_table, *new_table;
3470 * Use a simple inmutable table with linear search to cache async jit info entries.
3471 * This assumes that the number of entries is small.
3474 /* Copy the table, adding a new entry at the end */
3475 old_table = amodule->async_jit_info_table;
3477 len = old_table[0].method_index;
3480 new_table = (JitInfoMap *)alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3482 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3483 new_table [0].method_index = len + 1;
3484 new_table [len].method_index = method_index;
3485 new_table [len].jinfo = jinfo;
3487 mono_memory_barrier ();
3488 if (InterlockedCompareExchangePointer ((volatile gpointer *)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3492 mono_jit_info_table_add (domain, jinfo);
3495 if ((guint8*)addr >= (guint8*)jinfo->code_start + jinfo->code_size)
3496 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3503 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3512 case MONO_PATCH_INFO_METHOD:
3513 case MONO_PATCH_INFO_METHOD_JUMP:
3514 case MONO_PATCH_INFO_ICALL_ADDR:
3515 case MONO_PATCH_INFO_ICALL_ADDR_CALL:
3516 case MONO_PATCH_INFO_METHOD_RGCTX:
3517 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3521 res = decode_method_ref (aot_module, &ref, p, &p, &error);
3522 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3526 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)) {
3527 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3528 ji->type = MONO_PATCH_INFO_ABS;
3532 ji->data.method = ref.method;
3535 ji->data.method = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
3536 if (!ji->data.method)
3537 g_error ("AOT Runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3539 g_assert (ji->data.method);
3540 mono_class_init (ji->data.method->klass);
3544 case MONO_PATCH_INFO_INTERNAL_METHOD:
3545 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
3546 case MONO_PATCH_INFO_JIT_ICALL_ADDR_NOCALL: {
3547 guint32 len = decode_value (p, &p);
3549 ji->data.name = (char*)p;
3553 case MONO_PATCH_INFO_METHODCONST:
3555 ji->data.method = decode_resolve_method_ref (aot_module, p, &p, &error);
3556 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3557 if (!ji->data.method)
3560 case MONO_PATCH_INFO_VTABLE:
3561 case MONO_PATCH_INFO_CLASS:
3562 case MONO_PATCH_INFO_IID:
3563 case MONO_PATCH_INFO_ADJUSTED_IID:
3565 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3566 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3567 if (!ji->data.klass)
3570 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3571 ji->data.del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3572 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p, &error);
3573 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3574 if (!ji->data.del_tramp->klass)
3576 if (decode_value (p, &p)) {
3577 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3578 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3579 if (!ji->data.del_tramp->method)
3582 ji->data.del_tramp->is_virtual = decode_value (p, &p) ? TRUE : FALSE;
3584 case MONO_PATCH_INFO_IMAGE:
3585 ji->data.image = load_image (aot_module, decode_value (p, &p), &error);
3586 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3587 if (!ji->data.image)
3590 case MONO_PATCH_INFO_FIELD:
3591 case MONO_PATCH_INFO_SFLDA:
3593 ji->data.field = decode_field_info (aot_module, p, &p);
3594 if (!ji->data.field)
3597 case MONO_PATCH_INFO_SWITCH:
3598 ji->data.table = (MonoJumpInfoBBTable *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3599 ji->data.table->table_size = decode_value (p, &p);
3600 table = (void **)mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3601 ji->data.table->table = (MonoBasicBlock**)table;
3602 for (i = 0; i < ji->data.table->table_size; i++)
3603 table [i] = (gpointer)(gssize)decode_value (p, &p);
3605 case MONO_PATCH_INFO_R4: {
3608 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3609 val = decode_value (p, &p);
3610 *(float*)ji->data.target = *(float*)&val;
3613 case MONO_PATCH_INFO_R8: {
3617 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3619 val [0] = decode_value (p, &p);
3620 val [1] = decode_value (p, &p);
3621 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3622 *(double*)ji->data.target = *(double*)&v;
3625 case MONO_PATCH_INFO_LDSTR:
3626 image = load_image (aot_module, decode_value (p, &p), &error);
3627 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3630 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3632 case MONO_PATCH_INFO_RVA:
3633 case MONO_PATCH_INFO_DECLSEC:
3634 case MONO_PATCH_INFO_LDTOKEN:
3635 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3637 image = load_image (aot_module, decode_value (p, &p), &error);
3638 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3641 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3643 ji->data.token->has_context = decode_value (p, &p);
3644 if (ji->data.token->has_context) {
3645 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p, &error);
3646 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3651 case MONO_PATCH_INFO_EXC_NAME:
3652 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3653 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3654 if (!ji->data.klass)
3656 ji->data.name = ji->data.klass->name;
3658 case MONO_PATCH_INFO_METHOD_REL:
3659 ji->data.offset = decode_value (p, &p);
3661 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3662 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3663 case MONO_PATCH_INFO_GC_NURSERY_START:
3664 case MONO_PATCH_INFO_GC_NURSERY_BITS:
3665 case MONO_PATCH_INFO_PROFILER_ALLOCATION_COUNT:
3667 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3668 ji->data.index = decode_value (p, &p);
3670 case MONO_PATCH_INFO_RGCTX_FETCH:
3671 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
3673 MonoJumpInfoRgctxEntry *entry;
3674 guint32 offset, val;
3677 offset = decode_value (p, &p);
3678 val = decode_value (p, &p);
3680 entry = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3681 p2 = aot_module->blob + offset;
3682 entry->method = decode_resolve_method_ref (aot_module, p2, &p2, &error);
3683 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3684 entry->info_type = (MonoRgctxInfoType)((val >> 1) & 0xff);
3685 entry->data = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3686 entry->data->type = (MonoJumpInfoType)((val >> 9) & 0xff);
3687 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3689 res = decode_patch (aot_module, mp, entry->data, p, &p);
3692 ji->data.rgctx_entry = entry;
3695 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3696 case MONO_PATCH_INFO_AOT_MODULE:
3697 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
3699 case MONO_PATCH_INFO_SIGNATURE:
3700 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
3701 ji->data.target = decode_signature (aot_module, p, &p);
3703 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3704 MonoJumpInfoGSharedVtCall *info = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3705 info->sig = decode_signature (aot_module, p, &p);
3706 g_assert (info->sig);
3707 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3708 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3710 ji->data.target = info;
3713 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3714 MonoGSharedVtMethodInfo *info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3717 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3718 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3720 info->num_entries = decode_value (p, &p);
3721 info->count_entries = info->num_entries;
3722 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3723 for (i = 0; i < info->num_entries; ++i) {
3724 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
3726 template_->info_type = (MonoRgctxInfoType)decode_value (p, &p);
3727 switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) {
3728 case MONO_PATCH_INFO_CLASS: {
3729 MonoClass *klass = decode_klass_ref (aot_module, p, &p, &error);
3730 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3733 template_->data = &klass->byval_arg;
3736 case MONO_PATCH_INFO_FIELD:
3737 template_->data = decode_field_info (aot_module, p, &p);
3738 if (!template_->data)
3742 g_assert_not_reached ();
3746 ji->data.target = info;
3749 case MONO_PATCH_INFO_LDSTR_LIT: {
3750 int len = decode_value (p, &p);
3753 s = (char *)mono_mempool_alloc0 (mp, len + 1);
3754 memcpy (s, p, len + 1);
3757 ji->data.target = s;
3760 case MONO_PATCH_INFO_VIRT_METHOD: {
3761 MonoJumpInfoVirtMethod *info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
3763 info->klass = decode_klass_ref (aot_module, p, &p, &error);
3764 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3766 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3767 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3769 ji->data.target = info;
3772 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
3773 case MONO_PATCH_INFO_JIT_THREAD_ATTACH:
3775 case MONO_PATCH_INFO_GET_TLS_TRAMP:
3776 case MONO_PATCH_INFO_SET_TLS_TRAMP:
3777 case MONO_PATCH_INFO_AOT_JIT_INFO:
3778 ji->data.index = decode_value (p, &p);
3781 g_warning ("unhandled type %d", ji->type);
3782 g_assert_not_reached ();
3796 * Decode a list of patches identified by the got offsets in GOT_OFFSETS. Return an array of
3797 * MonoJumpInfo structures allocated from MP.
3799 static MonoJumpInfo*
3800 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets)
3802 MonoJumpInfo *patches;
3805 guint32 *got_info_offsets;
3810 got = amodule->llvm_got;
3811 got_info_offsets = (guint32 *)amodule->llvm_got_info_offsets;
3814 got_info_offsets = (guint32 *)amodule->got_info_offsets;
3817 patches = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3818 for (i = 0; i < n_patches; ++i) {
3819 guint8 *p = amodule->blob + mono_aot_get_offset (got_info_offsets, got_offsets [i]);
3822 ji->type = (MonoJumpInfoType)decode_value (p, &p);
3824 /* See load_method () for SFLDA */
3825 if (got && got [got_offsets [i]] && ji->type != MONO_PATCH_INFO_SFLDA) {
3826 /* Already loaded */
3828 res = decode_patch (amodule, mp, ji, p, &p);
3837 static MonoJumpInfo*
3838 load_patch_info (MonoAotModule *amodule, MonoMemPool *mp, int n_patches,
3839 gboolean llvm, guint32 **got_slots,
3840 guint8 *buf, guint8 **endbuf)
3842 MonoJumpInfo *patches;
3848 *got_slots = (guint32 *)g_malloc (sizeof (guint32) * n_patches);
3849 for (pindex = 0; pindex < n_patches; ++pindex) {
3850 (*got_slots)[pindex] = decode_value (p, &p);
3853 patches = decode_patches (amodule, mp, n_patches, llvm, *got_slots);
3855 g_free (*got_slots);
3865 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3868 * Jump addresses cannot be patched by the trampoline code since it
3869 * does not have access to the caller's address. Instead, we collect
3870 * the addresses of the GOT slots pointing to a method, and patch
3871 * them after the method has been compiled.
3873 MonoJitDomainInfo *info = domain_jit_info (domain);
3876 mono_domain_lock (domain);
3877 if (!info->jump_target_got_slot_hash)
3878 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3879 list = (GSList *)g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3880 list = g_slist_prepend (list, got_slot);
3881 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3882 mono_domain_unlock (domain);
3888 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3889 * pointer to the native code of the method, or NULL if not found.
3890 * METHOD might not be set if the caller only has the image/token info.
3893 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index,
3896 MonoJitInfo *jinfo = NULL;
3897 guint8 *code = NULL, *info;
3902 init_amodule_got (amodule);
3904 if (domain != mono_get_root_domain ())
3905 /* Non shared AOT code can't be used in other appdomains */
3908 if (amodule->out_of_date)
3911 if (amodule->info.llvm_get_method) {
3913 * Obtain the method address by calling a generated function in the LLVM module.
3915 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
3916 code = (guint8 *)get_method (method_index);
3921 if (amodule->methods [method_index] == GINT_TO_POINTER (-1)) {
3922 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3926 method = mono_get_method_checked (image, token, NULL, NULL, error);
3930 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
3931 full_name = mono_method_full_name (method, TRUE);
3932 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3938 code = (guint8 *)amodule->methods [method_index];
3941 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3943 if (!amodule->methods_loaded) {
3944 amodule_lock (amodule);
3945 if (!amodule->methods_loaded) {
3948 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3949 mono_memory_barrier ();
3950 amodule->methods_loaded = loaded;
3952 amodule_unlock (amodule);
3955 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3958 if (mono_last_aot_method != -1) {
3959 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3961 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3963 method = mono_get_method_checked (image, token, NULL, NULL, error);
3968 char *name = mono_method_full_name (method, TRUE);
3969 g_print ("LAST AOT METHOD: %s.\n", name);
3972 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3977 if (!(is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) ||
3978 (mono_llvm_only && method && method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED)) {
3979 res = init_method (amodule, method_index, method, NULL, NULL, error);
3984 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3988 method = mono_get_method_checked (image, token, NULL, NULL, error);
3993 full_name = mono_method_full_name (method, TRUE);
3996 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3998 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
4002 amodule_lock (amodule);
4006 InterlockedIncrement (&mono_jit_stats.methods_aot);
4008 if (method && method->wrapper_type)
4009 g_hash_table_insert (amodule->method_to_code, method, code);
4011 /* Commit changes since methods_loaded is accessed outside the lock */
4012 mono_memory_barrier ();
4014 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
4016 amodule_unlock (amodule);
4018 if (MONO_PROFILER_ENABLED (jit_begin) || MONO_PROFILER_ENABLED (jit_done)) {
4022 method = mono_get_method_checked (amodule->assembly->image, token, NULL, NULL, error);
4026 MONO_PROFILER_RAISE (jit_begin, (method));
4027 jinfo = mono_jit_info_table_find (domain, (char*)code);
4029 MONO_PROFILER_RAISE (jit_done, (method, jinfo));
4042 find_aot_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, guint32 hash_full)
4045 guint32 table_size, entry_size, hash;
4046 guint32 *table, *entry;
4048 static guint32 n_extra_decodes;
4050 if (!amodule || amodule->out_of_date)
4053 table_size = amodule->extra_method_table [0];
4054 hash = hash_full % table_size;
4055 table = amodule->extra_method_table + 1;
4058 entry = &table [hash * entry_size];
4065 guint32 key = entry [0];
4066 guint32 value = entry [1];
4067 guint32 next = entry [entry_size - 1];
4071 p = amodule->blob + key;
4074 amodule_lock (amodule);
4075 if (!amodule->method_ref_to_method)
4076 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
4077 m = (MonoMethod *)g_hash_table_lookup (amodule->method_ref_to_method, p);
4078 amodule_unlock (amodule);
4080 m = decode_resolve_method_ref_with_target (amodule, method, p, &p, &error);
4081 mono_error_cleanup (&error); /* FIXME don't swallow the error */
4083 * Can't catche runtime invoke wrappers since it would break
4084 * the check in decode_method_ref_with_target ().
4086 if (m && m->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
4087 amodule_lock (amodule);
4088 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
4089 amodule_unlock (amodule);
4097 /* Methods decoded needlessly */
4099 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
4104 entry = &table [next * entry_size];
4113 add_module_cb (gpointer key, gpointer value, gpointer user_data)
4115 g_ptr_array_add ((GPtrArray*)user_data, value);
4121 * Try finding METHOD in the extra_method table in all AOT images.
4122 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
4123 * module where the method was found.
4126 find_aot_method (MonoMethod *method, MonoAotModule **out_amodule)
4131 guint32 hash = mono_aot_method_hash (method);
4133 /* Try the method's module first */
4134 *out_amodule = (MonoAotModule *)method->klass->image->aot_module;
4135 index = find_aot_method_in_amodule ((MonoAotModule *)method->klass->image->aot_module, method, hash);
4136 if (index != 0xffffff)
4140 * Try all other modules.
4141 * This is needed because generic instances klass->image points to the image
4142 * containing the generic definition, but the native code is generated to the
4143 * AOT image which contains the reference.
4146 /* Make a copy to avoid doing the search inside the aot lock */
4147 modules = g_ptr_array_new ();
4149 g_hash_table_foreach (aot_modules, add_module_cb, modules);
4153 for (i = 0; i < modules->len; ++i) {
4154 MonoAotModule *amodule = (MonoAotModule *)g_ptr_array_index (modules, i);
4156 if (amodule != method->klass->image->aot_module)
4157 index = find_aot_method_in_amodule (amodule, method, hash);
4158 if (index != 0xffffff) {
4159 *out_amodule = amodule;
4164 g_ptr_array_free (modules, TRUE);
4170 mono_aot_find_method_index (MonoMethod *method)
4172 MonoAotModule *out_amodule;
4173 return find_aot_method (method, &out_amodule);
4177 init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context, MonoError *error)
4179 MonoDomain *domain = mono_domain_get ();
4181 MonoClass *klass_to_run_ctor = NULL;
4182 gboolean from_plt = method == NULL;
4183 int pindex, n_patches;
4185 MonoJitInfo *jinfo = NULL;
4186 guint8 *code, *info;
4190 code = (guint8 *)amodule->methods [method_index];
4191 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
4195 //does the method's class has a cctor?
4196 if (decode_value (p, &p) == 1)
4197 klass_to_run_ctor = decode_klass_ref (amodule, p, &p, error);
4201 //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
4203 klass_to_run_ctor = method->klass;
4205 n_patches = decode_value (p, &p);
4208 MonoJumpInfo *patches;
4213 mp = mono_mempool_new ();
4215 if ((gpointer)code >= amodule->info.jit_code_start && (gpointer)code <= amodule->info.jit_code_end) {
4220 got = amodule->llvm_got;
4224 patches = load_patch_info (amodule, mp, n_patches, llvm, &got_slots, p, &p);
4225 if (patches == NULL) {
4226 mono_mempool_destroy (mp);
4230 for (pindex = 0; pindex < n_patches; ++pindex) {
4231 MonoJumpInfo *ji = &patches [pindex];
4235 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
4236 * been initialized by load_method () for a static cctor before the cctor has
4237 * finished executing (#23242).
4239 if (!got [got_slots [pindex]] || ji->type == MONO_PATCH_INFO_SFLDA) {
4240 /* In llvm-only made, we might encounter shared methods */
4241 if (mono_llvm_only && ji->type == MONO_PATCH_INFO_METHOD && mono_method_check_context_used (ji->data.method)) {
4243 ji->data.method = mono_class_inflate_generic_method_checked (ji->data.method, context, error);
4244 if (!mono_error_ok (error)) {
4246 mono_mempool_destroy (mp);
4250 /* This cannot be resolved in mono_resolve_patch_target () */
4251 if (ji->type == MONO_PATCH_INFO_AOT_JIT_INFO) {
4252 // FIXME: Lookup using the index
4253 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4254 ji->type = MONO_PATCH_INFO_ABS;
4255 ji->data.target = jinfo;
4257 addr = mono_resolve_patch_target (method, domain, code, ji, TRUE, error);
4258 if (!mono_error_ok (error)) {
4260 mono_mempool_destroy (mp);
4263 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4264 addr = mono_create_ftnptr (domain, addr);
4265 mono_memory_barrier ();
4266 got [got_slots [pindex]] = addr;
4267 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4268 register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
4270 ji->type = MONO_PATCH_INFO_NONE;
4275 mono_mempool_destroy (mp);
4278 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
4279 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4281 gboolean inited_ok = TRUE;
4283 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, init_class), error);
4284 else if (from_plt && klass_to_run_ctor && !mono_class_is_gtd (klass_to_run_ctor))
4285 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, klass_to_run_ctor), error);
4299 init_llvmonly_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context)
4304 res = init_method (amodule, method_index, method, init_class, context, &error);
4305 if (!is_ok (&error)) {
4306 MonoException *ex = mono_error_convert_to_exception (&error);
4307 /* Its okay to raise in llvmonly mode */
4309 mono_llvm_throw_exception ((MonoObject*)ex);
4314 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
4316 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4318 init_llvmonly_method (amodule, method_index, NULL, NULL, NULL);
4322 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this_obj)
4324 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4326 MonoGenericContext *context;
4330 g_assert (this_obj);
4331 klass = this_obj->vtable->klass;
4333 amodule_lock (amodule);
4334 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4335 amodule_unlock (amodule);
4338 context = mono_method_get_context (method);
4341 init_llvmonly_method (amodule, method_index, NULL, klass, context);
4345 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
4347 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4348 MonoGenericContext context = { NULL, NULL };
4349 MonoClass *klass = rgctx->class_vtable->klass;
4351 if (mono_class_is_ginst (klass))
4352 context.class_inst = mono_class_get_generic_class (klass)->context.class_inst;
4353 else if (mono_class_is_gtd (klass))
4354 context.class_inst = mono_class_get_generic_container (klass)->context.class_inst;
4355 context.method_inst = rgctx->method_inst;
4357 init_llvmonly_method (amodule, method_index, NULL, rgctx->class_vtable->klass, &context);
4361 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
4363 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4365 MonoGenericContext *context;
4368 klass = vtable->klass;
4370 amodule_lock (amodule);
4371 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4372 amodule_unlock (amodule);
4375 context = mono_method_get_context (method);
4378 init_llvmonly_method (amodule, method_index, NULL, klass, context);
4382 * mono_aot_get_method_checked:
4384 * Return a pointer to the AOTed native code for METHOD if it can be found,
4386 * On platforms with function pointers, this doesn't return a function pointer.
4389 mono_aot_get_method_checked (MonoDomain *domain, MonoMethod *method, MonoError *error)
4391 MonoClass *klass = method->klass;
4392 MonoMethod *orig_method = method;
4393 guint32 method_index;
4394 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
4396 gboolean cache_result = FALSE;
4397 MonoError inner_error;
4401 if (domain != mono_get_root_domain ())
4402 /* Non shared AOT code can't be used in other appdomains */
4405 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
4406 /* This cannot be AOTed during startup, so do it now */
4407 if (!mscorlib_aot_loaded) {
4408 mscorlib_aot_loaded = TRUE;
4409 load_aot_module (klass->image->assembly, NULL);
4410 amodule = (MonoAotModule *)klass->image->aot_module;
4417 if (amodule->out_of_date)
4420 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4421 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4422 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4423 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
4427 * Use the original method instead of its invoke-with-check wrapper.
4428 * This is not a problem when using full-aot, since it doesn't support
4431 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4432 return mono_aot_get_method_checked (domain, mono_marshal_method_from_wrapper (method), error);
4434 g_assert (klass->inited);
4436 /* Find method index */
4437 method_index = 0xffffff;
4438 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)) {
4439 MonoMethod *orig_method = method;
4441 * For generic methods, we store the fully shared instance in place of the
4444 method = mono_method_get_declaring_generic_method (method);
4445 method_index = mono_metadata_token_index (method->token) - 1;
4447 if (mono_llvm_only) {
4448 /* Needed by mono_aot_init_gshared_method_this () */
4449 /* orig_method is a random instance but it is enough to make init_method () work */
4450 amodule_lock (amodule);
4451 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), orig_method);
4452 amodule_unlock (amodule);
4454 } else if (method->is_inflated || !method->token) {
4455 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4456 amodule_lock (amodule);
4457 code = (guint8 *)g_hash_table_lookup (amodule->method_to_code, method);
4458 amodule_unlock (amodule);
4462 cache_result = TRUE;
4463 method_index = find_aot_method (method, &amodule);
4465 * Special case the ICollection<T> wrappers for arrays, as they cannot
4466 * be statically enumerated, and each wrapper ends up calling the same
4469 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
4470 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4472 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4473 mono_error_cleanup (&inner_error);
4479 * Special case Array.GetGenericValueImpl which is a generic icall.
4480 * Generic sharing currently can't handle it, but the icall returns data using
4481 * an out parameter, so the managed-to-native wrappers can share the same code.
4483 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
4485 MonoGenericContext ctx;
4486 MonoType *args [16];
4488 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
4489 /* Avoid recursion */
4492 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
4495 memset (&ctx, 0, sizeof (ctx));
4496 args [0] = &mono_defaults.object_class->byval_arg;
4497 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4499 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, error), TRUE, TRUE);
4501 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error)); /* FIXME don't swallow the error */
4504 * Get the code for the <object> instantiation which should be emitted into
4505 * the mscorlib aot image by the AOT compiler.
4507 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4508 mono_error_cleanup (&inner_error);
4513 /* Same for CompareExchange<T> and Exchange<T> */
4514 /* Same for Volatile.Read<T>/Write<T> */
4515 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
4516 ((!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]))) ||
4517 (!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)))) ||
4518 (!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])))))) {
4520 MonoGenericContext ctx;
4521 MonoType *args [16];
4522 gpointer iter = NULL;
4524 while ((m = mono_class_get_methods (method->klass, &iter))) {
4525 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
4530 memset (&ctx, 0, sizeof (ctx));
4531 args [0] = &mono_defaults.object_class->byval_arg;
4532 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4534 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, error), TRUE, TRUE);
4536 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error)); /* FIXME don't swallow the error */
4538 /* Avoid recursion */
4543 * Get the code for the <object> instantiation which should be emitted into
4544 * the mscorlib aot image by the AOT compiler.
4546 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4547 mono_error_cleanup (&inner_error);
4552 /* For ARRAY_ACCESSOR wrappers with reference types, use the <object> instantiation saved in corlib */
4553 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4554 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4556 if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
4557 MonoMethod *array_method = info->d.array_accessor.method;
4558 if (MONO_TYPE_IS_REFERENCE (&array_method->klass->element_class->byval_arg)) {
4561 if (!strcmp (array_method->name, "Set"))
4562 rank = mono_method_signature (array_method)->param_count - 1;
4563 else if (!strcmp (array_method->name, "Get") || !strcmp (array_method->name, "Address"))
4564 rank = mono_method_signature (array_method)->param_count;
4566 g_assert_not_reached ();
4567 MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, rank);
4568 MonoMethod *m = mono_class_get_method_from_name (obj_array_class, array_method->name, mono_method_signature (array_method)->param_count);
4571 m = mono_marshal_get_array_accessor_wrapper (m);
4573 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4574 mono_error_cleanup (&inner_error);
4582 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
4583 /* Partial sharing */
4586 shared = mini_get_shared_method (method);
4587 method_index = find_aot_method (shared, &amodule);
4588 if (method_index != 0xffffff)
4592 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4595 /* Use the all-vt shared method since this is what was AOTed */
4596 shared = mini_get_shared_method_full (method, TRUE, TRUE);
4597 method_index = find_aot_method (shared, &amodule);
4598 if (method_index != 0xffffff)
4599 method = mini_get_shared_method_full (method, TRUE, FALSE);
4602 if (method_index == 0xffffff) {
4603 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
4606 full_name = mono_method_full_name (method, TRUE);
4607 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
4613 if (method_index == 0xffffff)
4616 /* Needed by find_jit_info */
4617 amodule_lock (amodule);
4618 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
4619 amodule_unlock (amodule);
4622 method_index = mono_metadata_token_index (method->token) - 1;
4625 code = (guint8 *)load_method (domain, amodule, klass->image, method, method->token, method_index, error);
4628 if (code && cache_result) {
4629 amodule_lock (amodule);
4630 g_hash_table_insert (amodule->method_to_code, orig_method, code);
4631 amodule_unlock (amodule);
4637 * mono_aot_get_method:
4639 * Return a pointer to the AOTed native code for METHOD if it can be found,
4641 * On platforms with function pointers, this doesn't return a function pointer.
4644 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
4648 gpointer res = mono_aot_get_method_checked (domain, method, &error);
4649 /* This is external only, so its ok to raise here */
4650 mono_error_raise_exception (&error); /* OK to throw, external only without a good alternative */
4655 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4659 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token, MonoError *error)
4661 MonoAotModule *aot_module = (MonoAotModule *)image->aot_module;
4670 method_index = mono_metadata_token_index (token) - 1;
4672 res = load_method (domain, aot_module, image, NULL, token, method_index, error);
4679 } IsGotEntryUserData;
4682 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4684 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4685 MonoAotModule *aot_module = (MonoAotModule*)value;
4687 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4692 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4694 IsGotEntryUserData user_data;
4699 user_data.addr = addr;
4700 user_data.res = FALSE;
4702 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4705 return user_data.res;
4710 MonoAotModule *module;
4711 } FindAotModuleUserData;
4714 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4716 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4717 MonoAotModule *aot_module = (MonoAotModule*)value;
4719 if (amodule_contains_code_addr (aot_module, data->addr))
4720 data->module = aot_module;
4723 static inline MonoAotModule*
4724 find_aot_module (guint8 *code)
4726 FindAotModuleUserData user_data;
4731 /* Reading these need no locking */
4732 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4735 user_data.addr = code;
4736 user_data.module = NULL;
4739 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4742 return user_data.module;
4746 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4748 MonoAotModule *amodule;
4751 * Since AOT code is only used in the root domain,
4752 * mono_domain_get () != mono_get_root_domain () means the calling method
4753 * is AppDomain:InvokeInDomain, so this is the same check as in
4754 * mono_method_same_domain () but without loading the metadata for the method.
4756 if (mono_domain_get () == mono_get_root_domain ()) {
4758 amodule = find_aot_module (code);
4762 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4767 * mono_aot_plt_resolve:
4769 * This function is called by the entries in the PLT to resolve the actual method that
4770 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4771 * Returns NULL if the something cannot be loaded.
4774 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
4776 #ifdef MONO_ARCH_AOT_SUPPORTED
4777 guint8 *p, *target, *plt_entry;
4779 MonoAotModule *module = (MonoAotModule*)aot_module;
4780 gboolean res, no_ftnptr = FALSE;
4782 gboolean using_gsharedvt = FALSE;
4786 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4788 p = &module->blob [plt_info_offset];
4790 ji.type = (MonoJumpInfoType)decode_value (p, &p);
4792 mp = mono_mempool_new ();
4793 res = decode_patch (module, mp, &ji, p, &p);
4796 mono_mempool_destroy (mp);
4800 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4801 using_gsharedvt = TRUE;
4805 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4806 * it would create a trampoline, and we don't need that.
4807 * We could do this only if the method does not need the special handling
4808 * in mono_magic_trampoline ().
4810 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) &&
4811 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4812 target = (guint8 *)mono_jit_compile_method (ji.data.method, error);
4813 if (!mono_error_ok (error)) {
4814 mono_mempool_destroy (mp);
4819 target = (guint8 *)mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE, error);
4820 if (!mono_error_ok (error)) {
4821 mono_mempool_destroy (mp);
4827 * The trampoline expects us to return a function descriptor on platforms which use
4828 * it, but resolve_patch_target returns a direct function pointer for some type of
4829 * patches, so have to translate between the two.
4830 * FIXME: Clean this up, but how ?
4832 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) {
4833 /* These should already have a function descriptor */
4834 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4835 /* Our function descriptors have a 0 environment, gcc created ones don't */
4836 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4837 g_assert (((gpointer*)target) [2] == 0);
4840 } else if (!no_ftnptr) {
4841 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4842 g_assert (((gpointer*)target) [2] != 0);
4844 target = (guint8 *)mono_create_ftnptr (mono_domain_get (), target);
4847 mono_mempool_destroy (mp);
4849 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4850 plt_entry = mono_aot_get_plt_entry (code);
4851 g_assert (plt_entry);
4852 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4856 g_assert_not_reached ();
4864 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4865 * method in the module is loaded to avoid committing memory by writing to it.
4866 * LOCKING: Assumes the AMODULE lock is held.
4869 init_plt (MonoAotModule *amodule)
4874 if (amodule->plt_inited)
4877 if (amodule->info.plt_size <= 1) {
4878 amodule->plt_inited = TRUE;
4882 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4885 * Initialize the PLT entries in the GOT to point to the default targets.
4888 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4889 for (i = 1; i < amodule->info.plt_size; ++i)
4890 /* All the default entries point to the AOT trampoline */
4891 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4893 amodule->plt_inited = TRUE;
4897 * mono_aot_get_plt_entry:
4899 * Return the address of the PLT entry called by the code at CODE if exists.
4902 mono_aot_get_plt_entry (guint8 *code)
4904 MonoAotModule *amodule = find_aot_module (code);
4905 guint8 *target = NULL;
4911 if (is_thumb_code (amodule, code - 4))
4912 return mono_arm_get_thumb_plt_entry (code);
4915 #ifdef MONO_ARCH_AOT_SUPPORTED
4916 target = mono_arch_get_call_target (code);
4918 g_assert_not_reached ();
4922 while (target != NULL) {
4923 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4926 // Add 4 since mono_arch_get_call_target assumes we're passing
4927 // the instruction after the actual branch instruction.
4928 target = mono_arch_get_call_target (target + 4);
4933 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4941 * mono_aot_get_plt_info_offset:
4943 * Return the PLT info offset belonging to the plt entry called by CODE.
4946 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4948 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4950 g_assert (plt_entry);
4952 /* The offset is embedded inside the code after the plt entry */
4953 #ifdef MONO_ARCH_AOT_SUPPORTED
4954 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4956 g_assert_not_reached ();
4962 mono_create_ftnptr_malloc (guint8 *code)
4964 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4965 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4967 ftnptr->code = code;
4978 * mono_aot_register_jit_icall:
4980 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4981 * be called from mono_arch_init () during startup.
4984 mono_aot_register_jit_icall (const char *name, gpointer addr)
4986 /* No need for locking */
4987 if (!aot_jit_icall_hash)
4988 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
4989 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
4993 * load_function_full:
4995 * Load the function named NAME from the aot image.
4998 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
5002 int n_patches, pindex;
5005 guint32 info_offset;
5009 symbol = g_strdup_printf ("%s", name);
5010 find_amodule_symbol (amodule, symbol, (gpointer *)&code);
5013 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
5015 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
5019 symbol = g_strdup_printf ("%s_p", name);
5020 find_amodule_symbol (amodule, symbol, (gpointer *)&p);
5023 /* Nothing to patch */
5026 info_offset = *(guint32*)p;
5028 MonoTrampInfo *tinfo;
5029 guint32 code_size, uw_info_len, uw_offset;
5031 /* Construct a MonoTrampInfo from the data in the AOT image */
5033 p += sizeof (guint32);
5034 code_size = *(guint32*)p;
5035 p += sizeof (guint32);
5036 uw_offset = *(guint32*)p;
5037 uw_info = amodule->unwind_info + uw_offset;
5038 uw_info_len = decode_value (uw_info, &uw_info);
5040 tinfo = g_new0 (MonoTrampInfo, 1);
5041 tinfo->code = (guint8 *)code;
5042 tinfo->code_size = code_size;
5043 tinfo->uw_info_len = uw_info_len;
5045 tinfo->uw_info = uw_info;
5050 p = amodule->blob + info_offset;
5052 /* Similar to mono_aot_load_method () */
5054 n_patches = decode_value (p, &p);
5057 MonoJumpInfo *patches;
5060 mp = mono_mempool_new ();
5062 patches = load_patch_info (amodule, mp, n_patches, FALSE, &got_slots, p, &p);
5065 for (pindex = 0; pindex < n_patches; ++pindex) {
5066 MonoJumpInfo *ji = &patches [pindex];
5070 if (amodule->got [got_slots [pindex]])
5074 * When this code is executed, the runtime may not be initalized yet, so
5075 * resolve the patch info by hand.
5077 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
5078 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
5079 target = mono_get_lmf_addr;
5080 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint_noraise")) {
5081 target = mono_thread_force_interruption_checkpoint_noraise;
5082 } else if (!strcmp (ji->data.name, "mono_interruption_checkpoint_from_trampoline")) {
5083 target = mono_interruption_checkpoint_from_trampoline;
5084 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
5085 target = mono_exception_from_token;
5086 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
5087 target = mono_get_throw_exception ();
5088 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
5089 MonoTrampolineType tramp_type2 = (MonoTrampolineType)atoi (ji->data.name + strlen ("trampoline_func_"));
5090 target = (gpointer)mono_get_trampoline_func (tramp_type2);
5091 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
5092 /* atoll is needed because the the offset is unsigned */
5096 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
5097 g_assert (res == 1);
5098 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5099 target = mono_create_ftnptr_malloc ((guint8 *)target);
5100 } else if (!strcmp (ji->data.name, "debugger_agent_single_step_from_context")) {
5101 target = debugger_agent_single_step_from_context;
5102 } else if (!strcmp (ji->data.name, "debugger_agent_breakpoint_from_context")) {
5103 target = debugger_agent_breakpoint_from_context;
5104 } else if (!strcmp (ji->data.name, "throw_exception_addr")) {
5105 target = mono_get_throw_exception_addr ();
5106 } else if (strstr (ji->data.name, "generic_trampoline_")) {
5107 target = mono_aot_get_trampoline (ji->data.name);
5108 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
5109 /* Registered by mono_arch_init () */
5110 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
5112 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
5113 g_assert_not_reached ();
5117 /* Hopefully the code doesn't have patches which need method or
5120 target = mono_resolve_patch_target (NULL, NULL, (guint8 *)code, ji, FALSE, &error);
5121 mono_error_assert_ok (&error);
5125 amodule->got [got_slots [pindex]] = target;
5130 mono_mempool_destroy (mp);
5137 load_function (MonoAotModule *amodule, const char *name)
5139 return load_function_full (amodule, name, NULL);
5142 static MonoAotModule*
5143 get_mscorlib_aot_module (void)
5146 MonoAotModule *amodule;
5148 image = mono_defaults.corlib;
5150 amodule = (MonoAotModule *)image->aot_module;
5152 amodule = mscorlib_aot_module;
5158 no_trampolines (void)
5160 g_assert_not_reached ();
5164 * Return the trampoline identified by NAME from the mscorlib AOT file.
5165 * On ppc64, this returns a function descriptor.
5168 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5170 MonoAotModule *amodule = get_mscorlib_aot_module ();
5172 if (mono_llvm_only) {
5174 return no_trampolines;
5177 return mono_create_ftnptr_malloc ((guint8 *)load_function_full (amodule, name, out_tinfo));
5181 mono_aot_get_trampoline (const char *name)
5183 MonoTrampInfo *out_tinfo;
5186 code = mono_aot_get_trampoline_full (name, &out_tinfo);
5187 mono_aot_tramp_info_register (out_tinfo, NULL);
5193 read_unwind_info (MonoAotModule *amodule, MonoTrampInfo *info, const char *symbol_name)
5195 gpointer symbol_addr;
5196 guint32 uw_offset, uw_info_len;
5199 find_amodule_symbol (amodule, symbol_name, &symbol_addr);
5204 uw_offset = *(guint32*)symbol_addr;
5205 uw_info = amodule->unwind_info + uw_offset;
5206 uw_info_len = decode_value (uw_info, &uw_info);
5208 info->uw_info_len = uw_info_len;
5210 info->uw_info = uw_info;
5212 info->uw_info = NULL;
5214 /* If successful return the address of the following data */
5215 return (guint32*)symbol_addr + 1;
5219 #include <mach/mach.h>
5221 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
5224 read_page_trampoline_uwinfo (MonoTrampInfo *info, int tramp_type, gboolean is_generic)
5226 char symbol_name [128];
5228 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5229 sprintf (symbol_name, "specific_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5230 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5231 sprintf (symbol_name, "rgctx_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5232 else if (tramp_type == MONO_AOT_TRAMP_IMT)
5233 sprintf (symbol_name, "imt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5234 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5235 sprintf (symbol_name, "gsharedvt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5237 g_assert_not_reached ();
5239 read_unwind_info (mono_defaults.corlib->aot_module, info, symbol_name);
5242 static unsigned char*
5243 get_new_trampoline_from_page (int tramp_type)
5245 MonoAotModule *amodule;
5247 TrampolinePage *page;
5250 vm_address_t addr, taddr;
5252 vm_prot_t prot, max_prot;
5253 int psize, specific_trampoline_size;
5254 unsigned char *code;
5256 specific_trampoline_size = 2 * sizeof (gpointer);
5258 mono_aot_page_lock ();
5259 page = trampoline_pages [tramp_type];
5260 if (page && page->trampolines < page->trampolines_end) {
5261 code = page->trampolines;
5262 page->trampolines += specific_trampoline_size;
5263 mono_aot_page_unlock ();
5266 mono_aot_page_unlock ();
5267 /* the trampoline template page is in the mscorlib module */
5268 image = mono_defaults.corlib;
5271 psize = MONO_AOT_TRAMP_PAGE_SIZE;
5273 amodule = image->aot_module;
5276 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5277 tpage = load_function (amodule, "specific_trampolines_page");
5278 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5279 tpage = load_function (amodule, "rgctx_trampolines_page");
5280 else if (tramp_type == MONO_AOT_TRAMP_IMT)
5281 tpage = load_function (amodule, "imt_trampolines_page");
5282 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5283 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
5285 g_error ("Incorrect tramp type for trampolines page");
5287 /*g_warning ("loaded trampolines page at %x", tpage);*/
5289 /* avoid the unlikely case of looping forever */
5292 while (page == NULL && count-- > 0) {
5293 MonoTrampInfo *gen_info, *sp_info;
5296 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
5297 * while the second will contain the trampolines.
5300 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
5301 } while (ret == KERN_ABORTED);
5302 if (ret != KERN_SUCCESS) {
5303 g_error ("Cannot allocate memory for trampolines: %d", ret);
5306 /*g_warning ("allocated trampoline double page at %x", addr);*/
5307 /* replace the second page with a remapped trampoline page */
5308 taddr = addr + psize;
5309 vm_deallocate (mach_task_self (), taddr, psize);
5310 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
5311 if (ret != KERN_SUCCESS) {
5312 /* someone else got the page, try again */
5313 vm_deallocate (mach_task_self (), addr, psize);
5316 /*g_warning ("remapped trampoline page at %x", taddr);*/
5318 mono_aot_page_lock ();
5319 page = trampoline_pages [tramp_type];
5320 /* some other thread already allocated, so use that to avoid wasting memory */
5321 if (page && page->trampolines < page->trampolines_end) {
5322 code = page->trampolines;
5323 page->trampolines += specific_trampoline_size;
5324 mono_aot_page_unlock ();
5325 vm_deallocate (mach_task_self (), addr, psize);
5326 vm_deallocate (mach_task_self (), taddr, psize);
5329 page = (TrampolinePage*)addr;
5330 page->next = trampoline_pages [tramp_type];
5331 trampoline_pages [tramp_type] = page;
5332 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
5333 page->trampolines_end = (void*)(taddr + psize - 64);
5334 code = page->trampolines;
5335 page->trampolines += specific_trampoline_size;
5336 mono_aot_page_unlock ();
5338 /* Register the generic part at the beggining of the trampoline page */
5339 gen_info = mono_tramp_info_create (NULL, (guint8*)taddr, amodule->info.tramp_page_code_offsets [tramp_type], NULL, NULL);
5340 read_page_trampoline_uwinfo (gen_info, tramp_type, TRUE);
5341 mono_aot_tramp_info_register (gen_info, NULL);
5344 * Registering each specific trampoline produces a lot of
5345 * MonoJitInfo structures. Jump trampolines are also registered
5348 if (tramp_type != MONO_AOT_TRAMP_SPECIFIC) {
5349 /* Register the rest of the page as a single trampoline */
5350 sp_info = mono_tramp_info_create (NULL, code, page->trampolines_end - code, NULL, NULL);
5351 read_page_trampoline_uwinfo (sp_info, tramp_type, FALSE);
5352 mono_aot_tramp_info_register (sp_info, NULL);
5356 g_error ("Cannot allocate more trampoline pages: %d", ret);
5361 static unsigned char*
5362 get_new_trampoline_from_page (int tramp_type)
5364 g_error ("Page trampolines not supported.");
5371 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
5376 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
5378 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5381 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5387 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
5392 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
5394 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5397 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5403 get_new_imt_trampoline_from_page (gpointer arg)
5408 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT);
5410 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5412 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
5418 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
5423 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
5425 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5428 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5432 /* Return a given kind of trampoline */
5433 /* FIXME set unwind info for these trampolines */
5435 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
5438 MonoAotModule *amodule = get_mscorlib_aot_module ();
5439 int index, tramp_size;
5441 /* Currently, we keep all trampolines in the mscorlib AOT image */
5442 image = mono_defaults.corlib;
5444 *out_amodule = amodule;
5449 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5451 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5453 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
5454 g_error ("Ran out of trampolines of type %d in '%s' (limit %d)%s\n",
5455 tramp_type, image ? image->name : "mscorlib", amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
5457 index = amodule->trampoline_index [tramp_type] ++;
5461 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
5463 tramp_size = amodule->info.trampoline_size [tramp_type];
5466 *out_tramp_size = tramp_size;
5468 return amodule->trampolines [tramp_type] + (index * tramp_size);
5472 no_specific_trampoline (void)
5474 g_assert_not_reached ();
5478 * Return a specific trampoline from the AOT file.
5481 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5483 MonoAotModule *amodule;
5484 guint32 got_offset, tramp_size;
5485 guint8 *code, *tramp;
5486 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
5487 static gboolean inited;
5488 static guint32 num_trampolines;
5490 if (mono_llvm_only) {
5492 return no_specific_trampoline;
5499 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
5508 if (!generic_trampolines [tramp_type]) {
5511 symbol = mono_get_generic_trampoline_name (tramp_type);
5512 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
5516 tramp = (guint8 *)generic_trampolines [tramp_type];
5519 if (USE_PAGE_TRAMPOLINES) {
5520 code = (guint8 *)get_new_specific_trampoline_from_page (tramp, arg1);
5523 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
5525 amodule->got [got_offset] = tramp;
5526 amodule->got [got_offset + 1] = arg1;
5530 *code_len = tramp_size;
5536 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5538 MonoAotModule *amodule;
5542 if (USE_PAGE_TRAMPOLINES) {
5543 code = (guint8 *)get_new_rgctx_trampoline_from_page (addr, ctx);
5545 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
5547 amodule->got [got_offset] = ctx;
5548 amodule->got [got_offset + 1] = addr;
5551 /* The caller expects an ftnptr */
5552 return mono_create_ftnptr (mono_domain_get (), code);
5556 mono_aot_get_unbox_trampoline (MonoMethod *method)
5558 guint32 method_index = mono_metadata_token_index (method->token) - 1;
5559 MonoAotModule *amodule;
5561 guint32 *ut, *ut_end, *entry;
5562 int low, high, entry_index = 0;
5563 gpointer symbol_addr;
5564 MonoTrampInfo *tinfo;
5566 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
5567 method_index = find_aot_method (method, &amodule);
5568 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
5569 MonoMethod *shared = mini_get_shared_method_full (method, FALSE, FALSE);
5570 method_index = find_aot_method (shared, &amodule);
5572 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, TRUE)) {
5573 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
5574 method_index = find_aot_method (shared, &amodule);
5576 g_assert (method_index != 0xffffff);
5578 amodule = (MonoAotModule *)method->klass->image->aot_module;
5582 if (amodule->info.llvm_get_unbox_tramp) {
5583 gpointer (*get_tramp) (int) = (gpointer (*)(int))amodule->info.llvm_get_unbox_tramp;
5584 code = get_tramp (method_index);
5590 ut = amodule->unbox_trampolines;
5591 ut_end = amodule->unbox_trampolines_end;
5593 /* Do a binary search in the sorted table */
5596 high = (ut_end - ut);
5597 while (low < high) {
5598 entry_index = (low + high) / 2;
5599 entry = &ut [entry_index];
5600 if (entry [0] < method_index) {
5601 low = entry_index + 1;
5602 } else if (entry [0] > method_index) {
5609 code = get_call_table_entry (amodule->unbox_trampoline_addresses, entry_index);
5612 tinfo = mono_tramp_info_create (NULL, (guint8 *)code, 0, NULL, NULL);
5614 symbol_addr = read_unwind_info (amodule, tinfo, "unbox_trampoline_p");
5616 mono_tramp_info_free (tinfo);
5620 tinfo->code_size = *(guint32*)symbol_addr;
5621 mono_aot_tramp_info_register (tinfo, NULL);
5623 /* The caller expects an ftnptr */
5624 return mono_create_ftnptr (mono_domain_get (), code);
5628 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5632 MonoAotModule *amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
5633 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
5634 static int count = 0;
5637 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
5638 static gpointer addr;
5642 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5645 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
5646 info = (void **)mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
5647 info [0] = GUINT_TO_POINTER (slot);
5648 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5649 code = mono_aot_get_static_rgctx_trampoline (info, addr);
5650 return mono_create_ftnptr (mono_domain_get (), code);
5653 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
5654 code = load_function ((MonoAotModule *)mono_defaults.corlib->aot_module, symbol);
5656 /* The caller expects an ftnptr */
5657 return mono_create_ftnptr (mono_domain_get (), code);
5661 no_imt_trampoline (void)
5663 g_assert_not_reached ();
5667 mono_aot_get_imt_trampoline (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5672 int i, index, real_count;
5673 MonoAotModule *amodule;
5676 return no_imt_trampoline;
5679 for (i = 0; i < count; ++i) {
5680 MonoIMTCheckItem *item = imt_entries [i];
5682 if (item->is_equals)
5686 /* Save the entries into an array */
5687 buf = (void **)mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
5689 for (i = 0; i < count; ++i) {
5690 MonoIMTCheckItem *item = imt_entries [i];
5692 if (!item->is_equals)
5695 g_assert (item->key);
5697 buf [(index * 2)] = item->key;
5698 if (item->has_target_code) {
5699 gpointer *p = (gpointer *)mono_domain_alloc (domain, sizeof (gpointer));
5700 *p = item->value.target_code;
5701 buf [(index * 2) + 1] = p;
5703 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
5707 buf [(index * 2)] = NULL;
5708 buf [(index * 2) + 1] = fail_tramp;
5710 if (USE_PAGE_TRAMPOLINES) {
5711 code = get_new_imt_trampoline_from_page (buf);
5713 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT, 1, &amodule, &got_offset, NULL);
5715 amodule->got [got_offset] = buf;
5722 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5724 MonoAotModule *amodule;
5728 if (USE_PAGE_TRAMPOLINES) {
5729 code = (guint8 *)get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
5731 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
5733 amodule->got [got_offset] = arg;
5734 amodule->got [got_offset + 1] = addr;
5737 /* The caller expects an ftnptr */
5738 return mono_create_ftnptr (mono_domain_get (), code);
5742 * mono_aot_set_make_unreadable:
5744 * Set whenever to make all mmaped memory unreadable. In conjuction with a
5745 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
5748 mono_aot_set_make_unreadable (gboolean unreadable)
5752 make_unreadable = unreadable;
5754 if (make_unreadable && !inited) {
5755 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
5760 MonoAotModule *module;
5765 find_map (gpointer key, gpointer value, gpointer user_data)
5767 MonoAotModule *module = (MonoAotModule*)value;
5768 FindMapUserData *data = (FindMapUserData*)user_data;
5771 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
5772 data->module = module;
5775 static MonoAotModule*
5776 find_module_for_addr (void *ptr)
5778 FindMapUserData data;
5780 if (!make_unreadable)
5784 data.ptr = (guint8*)ptr;
5787 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
5794 * mono_aot_is_pagefault:
5796 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
5797 * within memory allocated by this module.
5800 mono_aot_is_pagefault (void *ptr)
5802 if (!make_unreadable)
5806 * Not signal safe, but SIGSEGV's are synchronous, and
5807 * this is only turned on by a MONO_DEBUG option.
5809 return find_module_for_addr (ptr) != NULL;
5813 * mono_aot_handle_pagefault:
5815 * Handle a pagefault caused by an unreadable page by making it readable again.
5818 mono_aot_handle_pagefault (void *ptr)
5820 #ifndef PLATFORM_WIN32
5821 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5825 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5826 g_assert (res == 0);
5837 mono_aot_init (void)
5842 mono_aot_cleanup (void)
5847 mono_aot_find_method_index (MonoMethod *method)
5849 g_assert_not_reached ();
5854 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
5859 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this)
5864 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
5869 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
5874 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5880 mono_aot_get_method_checked (MonoDomain *domain,
5881 MonoMethod *method, MonoError *error)
5888 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5894 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5900 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5906 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5912 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token, MonoError *error)
5919 mono_aot_get_plt_entry (guint8 *code)
5925 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
5931 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5936 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot, MonoError *error)
5944 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5946 g_assert_not_reached ();
5952 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5954 g_assert_not_reached ();
5959 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5961 g_assert_not_reached ();
5966 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5968 g_assert_not_reached ();
5973 mono_aot_get_trampoline (const char *name)
5975 g_assert_not_reached ();
5980 mono_aot_get_unbox_trampoline (MonoMethod *method)
5982 g_assert_not_reached ();
5987 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5989 g_assert_not_reached ();
5994 mono_aot_get_imt_trampoline (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5996 g_assert_not_reached ();
6001 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
6003 g_assert_not_reached ();
6008 mono_aot_set_make_unreadable (gboolean unreadable)
6013 mono_aot_is_pagefault (void *ptr)
6019 mono_aot_handle_pagefault (void *ptr)
6024 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
6026 g_assert_not_reached ();
6031 mono_aot_register_jit_icall (const char *name, gpointer addr)