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 klass = mono_class_from_mono_type (t);
510 int type = decode_value (p, &p);
511 int num = decode_value (p, &p);
512 gboolean is_not_anonymous = decode_value (p, &p);
514 if (is_not_anonymous) {
515 gboolean is_method = decode_value (p, &p);
518 MonoMethod *method_def;
519 g_assert (type == MONO_TYPE_MVAR);
520 method_def = decode_resolve_method_ref (module, p, &p, error);
524 container = mono_method_get_generic_container (method_def);
526 MonoClass *class_def;
527 g_assert (type == MONO_TYPE_VAR);
528 class_def = decode_klass_ref (module, p, &p, error);
532 container = mono_class_try_get_generic_container (class_def); //FIXME is this a case for a try_get?
535 // We didn't decode is_method, so we have to infer it from type enum.
536 container = get_anonymous_container_for_image (module->assembly->image, type == MONO_TYPE_MVAR);
539 t = g_new0 (MonoType, 1);
540 t->type = (MonoTypeEnum)type;
541 if (is_not_anonymous) {
542 t->data.generic_param = mono_generic_container_get_param (container, num);
545 MonoGenericParam *par = (MonoGenericParam*)mono_image_alloc0 (module->assembly->image, sizeof (MonoGenericParamFull));
546 par->owner = container;
548 t->data.generic_param = par;
549 ((MonoGenericParamFull*)par)->info.name = make_generic_name_string (module->assembly->image, num);
551 // FIXME: Maybe use types directly to avoid
552 // the overhead of creating MonoClass-es
553 klass = mono_class_from_mono_type (t);
559 case MONO_AOT_TYPEREF_ARRAY:
561 rank = decode_value (p, &p);
562 eklass = decode_klass_ref (module, p, &p, error);
565 klass = mono_array_class_get (eklass, rank);
567 case MONO_AOT_TYPEREF_PTR: {
570 t = decode_type (module, p, &p, error);
573 klass = mono_class_from_mono_type (t);
577 case MONO_AOT_TYPEREF_BLOB_INDEX: {
578 guint32 offset = decode_value (p, &p);
581 p2 = module->blob + offset;
582 klass = decode_klass_ref (module, p2, &p2, error);
586 mono_error_set_bad_image_name (error, module->aot_name, "Invalid klass reftype %d", reftype);
589 //printf ("BLA: %s\n", mono_type_full_name (&klass->byval_arg));
594 static MonoClassField*
595 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
598 MonoClass *klass = decode_klass_ref (module, buf, &buf, &error);
603 mono_error_cleanup (&error); /* FIXME don't swallow the error */
607 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
611 return mono_class_get_field (klass, token);
615 * Parse a MonoType encoded by encode_type () in aot-compiler.c. Return malloc-ed
619 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
624 t = (MonoType *)g_malloc0 (sizeof (MonoType));
628 if (*p == MONO_TYPE_PINNED) {
631 } else if (*p == MONO_TYPE_BYREF) {
639 t->type = (MonoTypeEnum)*p;
644 case MONO_TYPE_BOOLEAN:
658 case MONO_TYPE_STRING:
659 case MONO_TYPE_OBJECT:
660 case MONO_TYPE_TYPEDBYREF:
662 case MONO_TYPE_VALUETYPE:
663 case MONO_TYPE_CLASS:
664 t->data.klass = decode_klass_ref (module, p, &p, error);
668 case MONO_TYPE_SZARRAY:
669 t->data.klass = decode_klass_ref (module, p, &p, error);
675 t->data.type = decode_type (module, p, &p, error);
679 case MONO_TYPE_GENERICINST: {
681 MonoGenericContext ctx;
685 gclass = decode_klass_ref (module, p, &p, error);
688 g_assert (mono_class_is_gtd (gclass));
690 memset (&ctx, 0, sizeof (ctx));
691 ctx.class_inst = decode_generic_inst (module, p, &p, error);
694 type = mono_class_inflate_generic_type_checked (&gclass->byval_arg, &ctx, error);
697 klass = mono_class_from_mono_type (type);
698 t->data.generic_class = mono_class_get_generic_class (klass);
701 case MONO_TYPE_ARRAY: {
702 MonoArrayType *array;
705 // FIXME: memory management
706 array = g_new0 (MonoArrayType, 1);
707 array->eklass = decode_klass_ref (module, p, &p, error);
710 array->rank = decode_value (p, &p);
711 array->numsizes = decode_value (p, &p);
714 array->sizes = (int *)g_malloc0 (sizeof (int) * array->numsizes);
715 for (i = 0; i < array->numsizes; ++i)
716 array->sizes [i] = decode_value (p, &p);
718 array->numlobounds = decode_value (p, &p);
719 if (array->numlobounds)
720 array->lobounds = (int *)g_malloc0 (sizeof (int) * array->numlobounds);
721 for (i = 0; i < array->numlobounds; ++i)
722 array->lobounds [i] = decode_value (p, &p);
723 t->data.array = array;
727 case MONO_TYPE_MVAR: {
728 MonoClass *klass = decode_klass_ref (module, p, &p, error);
731 t->data.generic_param = klass->byval_arg.data.generic_param;
735 mono_error_set_bad_image_name (error, module->aot_name, "Invalid encoded type %d", t->type);
747 // FIXME: Error handling, memory management
749 static MonoMethodSignature*
750 decode_signature_with_target (MonoAotModule *module, MonoMethodSignature *target, guint8 *buf, guint8 **endbuf)
753 MonoMethodSignature *sig;
755 int i, gen_param_count = 0, param_count, call_conv;
757 gboolean hasthis, explicit_this, has_gen_params;
761 has_gen_params = (flags & 0x10) != 0;
762 hasthis = (flags & 0x20) != 0;
763 explicit_this = (flags & 0x40) != 0;
764 call_conv = flags & 0x0F;
767 gen_param_count = decode_value (p, &p);
768 param_count = decode_value (p, &p);
769 if (target && param_count != target->param_count)
771 sig = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + param_count * sizeof (MonoType *));
772 sig->param_count = param_count;
773 sig->sentinelpos = -1;
774 sig->hasthis = hasthis;
775 sig->explicit_this = explicit_this;
776 sig->call_convention = call_conv;
777 sig->generic_param_count = gen_param_count;
778 sig->ret = decode_type (module, p, &p, &error);
781 for (i = 0; i < param_count; ++i) {
782 if (*p == MONO_TYPE_SENTINEL) {
783 g_assert (sig->call_convention == MONO_CALL_VARARG);
784 sig->sentinelpos = i;
787 sig->params [i] = decode_type (module, p, &p, &error);
788 if (!sig->params [i])
792 if (sig->call_convention == MONO_CALL_VARARG && sig->sentinelpos == -1)
793 sig->sentinelpos = sig->param_count;
799 mono_error_cleanup (&error); /* FIXME don't swallow the error */
804 static MonoMethodSignature*
805 decode_signature (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
807 return decode_signature_with_target (module, NULL, buf, endbuf);
811 sig_matches_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
813 MonoMethodSignature *sig;
817 sig = decode_signature_with_target (module, mono_method_signature (target), p, &p);
818 res = sig && mono_metadata_signature_equal (mono_method_signature (target), sig);
824 /* Stores information returned by decode_method_ref () */
829 gboolean no_aot_trampoline;
833 * decode_method_ref_with_target:
835 * Decode a method reference, storing the image/token into a MethodRef structure.
836 * This avoids loading metadata for the method if the caller does not need it. If the method has
837 * no token, then it is loaded from metadata and ref->method is set to the method instance.
838 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method
839 * couldn't resolve to TARGET, and return FALSE.
840 * There are some kinds of method references which only support a non-null TARGET.
841 * This means that its not possible to decode this into a method, only to check
842 * that the method reference matches a given method. This is normally not a problem
843 * as these wrappers only occur in the extra_methods table, where we already have
844 * a method we want to lookup.
846 * If there was a decoding error, we return FALSE and set @error
849 decode_method_ref_with_target (MonoAotModule *module, MethodRef *ref, MonoMethod *target, guint8 *buf, guint8 **endbuf, MonoError *error)
851 guint32 image_index, value;
852 MonoImage *image = NULL;
855 memset (ref, 0, sizeof (MethodRef));
858 value = decode_value (p, &p);
859 image_index = value >> 24;
861 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
862 ref->no_aot_trampoline = TRUE;
863 value = decode_value (p, &p);
864 image_index = value >> 24;
867 if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
868 if (target && target->wrapper_type) {
873 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
875 guint32 wrapper_type;
877 wrapper_type = decode_value (p, &p);
879 if (target && target->wrapper_type != wrapper_type)
883 image = mono_defaults.corlib;
885 switch (wrapper_type) {
886 #ifndef DISABLE_REMOTING
887 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
888 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
891 mono_class_init (m->klass);
895 ref->method = mono_marshal_get_remoting_invoke_with_check (m);
898 case MONO_WRAPPER_PROXY_ISINST: {
899 MonoClass *klass = decode_klass_ref (module, p, &p, error);
902 ref->method = mono_marshal_get_proxy_cancast (klass);
905 case MONO_WRAPPER_LDFLD:
906 case MONO_WRAPPER_LDFLDA:
907 case MONO_WRAPPER_STFLD: {
908 MonoClass *klass = decode_klass_ref (module, p, &p, error);
911 if (wrapper_type == MONO_WRAPPER_LDFLD)
912 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
913 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
914 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
915 else if (wrapper_type == MONO_WRAPPER_STFLD)
916 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
918 mono_error_set_bad_image_name (error, module->aot_name, "Unknown AOT wrapper type %d", wrapper_type);
924 case MONO_WRAPPER_ALLOC: {
925 int atype = decode_value (p, &p);
926 ManagedAllocatorVariant variant =
927 mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS ?
928 MANAGED_ALLOCATOR_SLOW_PATH : MANAGED_ALLOCATOR_REGULAR;
930 ref->method = mono_gc_get_managed_allocator_by_type (atype, variant);
931 /* Try to fallback to the slow path version */
932 if (!ref->method && variant == MANAGED_ALLOCATOR_REGULAR)
933 ref->method = mono_gc_get_managed_allocator_by_type (atype, MANAGED_ALLOCATOR_SLOW_PATH);
935 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");
940 case MONO_WRAPPER_WRITE_BARRIER: {
941 ref->method = mono_gc_get_write_barrier ();
944 case MONO_WRAPPER_STELEMREF: {
945 int subtype = decode_value (p, &p);
947 if (subtype == WRAPPER_SUBTYPE_NONE) {
948 ref->method = mono_marshal_get_stelemref ();
949 } else if (subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) {
952 kind = decode_value (p, &p);
954 /* Can't decode this */
957 if (target->wrapper_type == MONO_WRAPPER_STELEMREF) {
958 info = mono_marshal_get_wrapper_info (target);
961 if (info->subtype == subtype && info->d.virtual_stelemref.kind == kind)
962 ref->method = target;
969 mono_error_set_bad_image_name (error, module->aot_name, "Invalid STELEMREF subtype %d", subtype);
974 case MONO_WRAPPER_SYNCHRONIZED: {
975 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
978 ref->method = mono_marshal_get_synchronized_wrapper (m);
981 case MONO_WRAPPER_UNKNOWN: {
982 int subtype = decode_value (p, &p);
984 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) {
985 MonoClass *klass = decode_klass_ref (module, p, &p, error);
991 if (klass != target->klass)
994 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE) {
995 if (strcmp (target->name, "PtrToStructure"))
997 ref->method = mono_marshal_get_ptr_to_struct (klass);
999 if (strcmp (target->name, "StructureToPtr"))
1001 ref->method = mono_marshal_get_struct_to_ptr (klass);
1003 } else if (subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) {
1004 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1007 ref->method = mono_marshal_get_synchronized_inner_wrapper (m);
1008 } else if (subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
1009 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1012 ref->method = mono_marshal_get_array_accessor_wrapper (m);
1013 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN) {
1014 ref->method = mono_marshal_get_gsharedvt_in_wrapper ();
1015 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
1016 ref->method = mono_marshal_get_gsharedvt_out_wrapper ();
1017 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG) {
1018 MonoMethodSignature *sig = decode_signature (module, p, &p);
1021 ref->method = mini_get_gsharedvt_in_sig_wrapper (sig);
1022 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG) {
1023 MonoMethodSignature *sig = decode_signature (module, p, &p);
1026 ref->method = mini_get_gsharedvt_out_sig_wrapper (sig);
1028 mono_error_set_bad_image_name (error, module->aot_name, "Invalid UNKNOWN wrapper subtype %d", subtype);
1033 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
1034 int subtype = decode_value (p, &p);
1036 if (subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
1037 int rank = decode_value (p, &p);
1038 int elem_size = decode_value (p, &p);
1040 ref->method = mono_marshal_get_array_address (rank, elem_size);
1041 } else if (subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
1044 m = decode_resolve_method_ref (module, p, &p, error);
1050 g_assert (target->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED);
1052 info = mono_marshal_get_wrapper_info (target);
1053 if (info && info->subtype == subtype && info->d.string_ctor.method == m)
1054 ref->method = target;
1060 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
1062 int subtype = decode_value (p, &p);
1065 if (subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1070 if (strcmp (target->name, name) != 0)
1072 ref->method = target;
1074 m = decode_resolve_method_ref (module, p, &p, error);
1078 /* This should only happen when looking for an extra method */
1081 if (mono_marshal_method_from_wrapper (target) == m)
1082 ref->method = target;
1088 case MONO_WRAPPER_CASTCLASS: {
1089 int subtype = decode_value (p, &p);
1091 if (subtype == WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE)
1092 ref->method = mono_marshal_get_castclass_with_cache ();
1093 else if (subtype == WRAPPER_SUBTYPE_ISINST_WITH_CACHE)
1094 ref->method = mono_marshal_get_isinst_with_cache ();
1096 mono_error_set_bad_image_name (error, module->aot_name, "Invalid CASTCLASS wrapper subtype %d", subtype);
1101 case MONO_WRAPPER_RUNTIME_INVOKE: {
1102 int subtype = decode_value (p, &p);
1107 if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC) {
1108 if (strcmp (target->name, "runtime_invoke_dynamic") != 0)
1110 ref->method = target;
1111 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT) {
1112 /* Direct wrapper */
1113 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1116 ref->method = mono_marshal_get_runtime_invoke (m, FALSE);
1117 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) {
1118 /* Virtual direct wrapper */
1119 MonoMethod *m = decode_resolve_method_ref (module, p, &p, error);
1122 ref->method = mono_marshal_get_runtime_invoke (m, TRUE);
1124 MonoMethodSignature *sig;
1126 sig = decode_signature_with_target (module, NULL, p, &p);
1127 info = mono_marshal_get_wrapper_info (target);
1130 if (info->subtype != subtype)
1132 g_assert (info->d.runtime_invoke.sig);
1133 if (mono_metadata_signature_equal (sig, info->d.runtime_invoke.sig))
1134 ref->method = target;
1140 case MONO_WRAPPER_DELEGATE_INVOKE:
1141 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1142 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
1143 gboolean is_inflated = decode_value (p, &p);
1144 WrapperSubtype subtype;
1148 MonoMethod *invoke, *wrapper;
1150 klass = decode_klass_ref (module, p, &p, error);
1154 switch (wrapper_type) {
1155 case MONO_WRAPPER_DELEGATE_INVOKE:
1156 invoke = mono_get_delegate_invoke (klass);
1157 wrapper = mono_marshal_get_delegate_invoke (invoke, NULL);
1159 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1160 invoke = mono_get_delegate_begin_invoke (klass);
1161 wrapper = mono_marshal_get_delegate_begin_invoke (invoke);
1163 case MONO_WRAPPER_DELEGATE_END_INVOKE:
1164 invoke = mono_get_delegate_end_invoke (klass);
1165 wrapper = mono_marshal_get_delegate_end_invoke (invoke);
1168 g_assert_not_reached ();
1173 * Due to the way mini_get_shared_method () works, we could end up with
1174 * multiple copies of the same wrapper.
1176 if (wrapper->klass != target->klass)
1178 ref->method = target;
1180 ref->method = wrapper;
1184 * These wrappers are associated with a signature, not with a method.
1185 * Since we can't decode them into methods, they need a target method.
1190 if (wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1191 subtype = (WrapperSubtype)decode_value (p, &p);
1192 info = mono_marshal_get_wrapper_info (target);
1194 if (info->subtype != subtype)
1197 if (subtype != WRAPPER_SUBTYPE_NONE)
1201 if (sig_matches_target (module, target, p, &p))
1202 ref->method = target;
1208 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
1212 m = decode_resolve_method_ref (module, p, &p, error);
1215 klass = decode_klass_ref (module, p, &p, error);
1218 ref->method = mono_marshal_get_managed_wrapper (m, klass, 0, error);
1219 if (!mono_error_ok (error))
1224 g_assert_not_reached ();
1226 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1227 image_index = decode_value (p, &p);
1228 ref->token = decode_value (p, &p);
1230 image = load_image (module, image_index, error);
1233 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1235 MonoGenericContext ctx;
1238 * These methods do not have a token which resolves them, so we
1239 * resolve them immediately.
1241 klass = decode_klass_ref (module, p, &p, error);
1245 if (target && target->klass != klass)
1248 image_index = decode_value (p, &p);
1249 ref->token = decode_value (p, &p);
1251 image = load_image (module, image_index, error);
1255 ref->method = mono_get_method_checked (image, ref->token, NULL, NULL, error);
1260 memset (&ctx, 0, sizeof (ctx));
1262 if (FALSE && mono_class_is_ginst (klass)) {
1263 ctx.class_inst = mono_class_get_generic_class (klass)->context.class_inst;
1264 ctx.method_inst = NULL;
1266 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, error);
1271 memset (&ctx, 0, sizeof (ctx));
1273 if (!decode_generic_context (module, &ctx, p, &p, error))
1276 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, error);
1280 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1284 klass = decode_klass_ref (module, p, &p, error);
1287 method_type = decode_value (p, &p);
1288 switch (method_type) {
1290 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1293 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1296 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1299 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1302 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1305 mono_error_set_bad_image_name (error, module->aot_name, "Invalid METHODREF_ARRAY method type %d", method_type);
1309 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1310 image_index = decode_value (p, &p);
1311 value = decode_value (p, &p);
1314 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1316 image = load_image (module, image_index, error);
1329 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf, MonoError *error)
1331 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf, error);
1335 * decode_resolve_method_ref_with_target:
1337 * Similar to decode_method_ref, but resolve and return the method itself.
1340 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf, MonoError *error)
1346 if (!decode_method_ref_with_target (module, &ref, target, buf, endbuf, error))
1351 mono_error_set_bad_image_name (error, module->aot_name, "No image found for methodref with target");
1354 return mono_get_method_checked (ref.image, ref.token, NULL, NULL, error);
1358 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf, MonoError *error)
1360 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf, error);
1363 #ifdef ENABLE_AOT_CACHE
1369 * - Add options for controlling the cache size
1370 * - Handle full cache by deleting old assemblies lru style
1371 * - Maybe add a threshold after an assembly is AOT compiled
1372 * - Add options for enabling this for specific main assemblies
1375 /* The cache directory */
1376 static char *cache_dir;
1378 /* The number of assemblies AOTed in this run */
1379 static int cache_count;
1381 /* Whenever to AOT in-process */
1382 static gboolean in_process;
1385 collect_assemblies (gpointer data, gpointer user_data)
1387 MonoAssembly *ass = data;
1388 GSList **l = user_data;
1390 *l = g_slist_prepend (*l, ass);
1393 #define SHA1_DIGEST_LENGTH 20
1396 * get_aot_config_hash:
1398 * Return a hash for all the version information an AOT module depends on.
1400 static G_GNUC_UNUSED char*
1401 get_aot_config_hash (MonoAssembly *assembly)
1404 GSList *l, *assembly_list = NULL;
1407 guint8 digest [SHA1_DIGEST_LENGTH];
1410 build_info = mono_get_runtime_build_info ();
1412 s = g_string_new (build_info);
1414 mono_assembly_foreach (collect_assemblies, &assembly_list);
1417 * The assembly list includes the current assembly as well, no need
1420 for (l = assembly_list; l; l = l->next) {
1421 MonoAssembly *ass = l->data;
1423 g_string_append (s, "_");
1424 g_string_append (s, ass->aname.name);
1425 g_string_append (s, "_");
1426 g_string_append (s, ass->image->guid);
1429 for (i = 0; i < s->len; ++i) {
1430 if (!isalnum (s->str [i]) && s->str [i] != '-')
1434 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1436 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1437 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1438 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1440 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1442 g_string_free (s, TRUE);
1448 aot_cache_init (void)
1452 enable_aot_cache = TRUE;
1457 * aot_cache_load_module:
1459 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1462 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1464 MonoAotCacheConfig *config;
1466 char *fname, *tmp2, *aot_options, *failure_fname;
1478 if (image_is_dynamic (assembly->image))
1481 /* Check in the list of assemblies enabled for aot caching */
1482 config = mono_get_aot_cache_config ();
1486 MonoDomain *domain = mono_domain_get ();
1487 MonoAssembly *entry_assembly = domain->entry_assembly;
1489 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1490 for (l = config->apps; l; l = l->next) {
1493 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1501 for (l = config->assemblies; l; l = l->next) {
1504 if (!strcmp (assembly->aname.name, n))
1514 home = g_get_home_dir ();
1517 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1518 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1519 g_mkdir_with_parents (cache_dir, 0777);
1523 * The same assembly can be used in multiple configurations, i.e. multiple
1524 * versions of the runtime, with multiple versions of dependent assemblies etc.
1525 * To handle this, we compute a version string containing all this information, hash it,
1526 * and use the hash as a filename suffix.
1528 hash = get_aot_config_hash (assembly);
1530 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, MONO_SOLIB_EXT);
1531 fname = g_build_filename (cache_dir, tmp2, NULL);
1535 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1536 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1539 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1543 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1545 * Can't AOT this during startup, so we AOT it when called later from
1546 * mono_aot_get_method ().
1550 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1552 /* Only AOT one assembly per run to avoid slowing down execution too much */
1553 if (cache_count > 0)
1557 /* Check for previous failure */
1558 failure_fname = g_strdup_printf ("%s.failure", fname);
1559 failure_file = fopen (failure_fname, "r");
1561 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1562 g_free (failure_fname);
1565 g_free (failure_fname);
1566 fclose (failure_file);
1569 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1572 * We need to invoke the AOT compiler here. There are multiple approaches:
1573 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1574 * its hard to make the new process load the same set of assemblies.
1575 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1577 * - fork a new process and do the work there.
1580 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1581 /* Maybe due this in another thread ? */
1582 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1584 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1585 failure_fname = g_strdup_printf ("%s.failure", fname);
1586 failure_file = fopen (failure_fname, "a+");
1587 fclose (failure_file);
1588 g_free (failure_fname);
1590 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1594 * - Avoid waiting for the aot process to finish ?
1595 * (less overhead, but multiple processes could aot the same assembly at the same time)
1604 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1605 logfile = fopen (logfile_name, "a+");
1606 g_free (logfile_name);
1608 dup2 (fileno (logfile), 1);
1609 dup2 (fileno (logfile), 2);
1611 aot_options = g_strdup_printf ("outfile=%s", fname);
1612 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1620 waitpid (pid, &exit_status, 0);
1621 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1622 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1624 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1628 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1636 aot_cache_init (void)
1641 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1649 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1653 guint16 *table, *entry;
1656 char *symbol = (char*)name;
1659 symbol = g_strdup_printf ("_%s", name);
1662 /* The first entry points to the hash */
1663 table = (guint16 *)globals [0];
1666 table_size = table [0];
1669 hash = mono_metadata_str_hash (symbol) % table_size;
1671 entry = &table [hash * 2];
1673 /* Search the hash for the index into the globals table */
1675 while (entry [0] != 0) {
1676 guint32 index = entry [0] - 1;
1677 guint32 next = entry [1];
1679 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1681 if (!strcmp (globals [index * 2], symbol)) {
1682 global_index = index;
1687 entry = &table [next * 2];
1693 if (global_index != -1)
1694 *value = globals [global_index * 2 + 1];
1701 char *err = mono_dl_symbol (module, name, value);
1709 find_amodule_symbol (MonoAotModule *amodule, const char *name, gpointer *value)
1711 g_assert (!(amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY));
1713 find_symbol (amodule->sofile, amodule->globals, name, value);
1717 mono_install_load_aot_data_hook (MonoLoadAotDataFunc load_func, MonoFreeAotDataFunc free_func, gpointer user_data)
1719 aot_data_load_func = load_func;
1720 aot_data_free_func = free_func;
1721 aot_data_func_user_data = user_data;
1724 /* Load the separate aot data file for ASSEMBLY */
1726 open_aot_data (MonoAssembly *assembly, MonoAotFileInfo *info, void **ret_handle)
1732 if (aot_data_load_func) {
1733 data = aot_data_load_func (assembly, info->datafile_size, aot_data_func_user_data, ret_handle);
1739 * Use <assembly name>.aotdata as the default implementation if no callback is given
1741 filename = g_strdup_printf ("%s.aotdata", assembly->image->name);
1742 map = mono_file_map_open (filename);
1744 data = mono_file_map (info->datafile_size, MONO_MMAP_READ, mono_file_map_fd (map), 0, ret_handle);
1751 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, guint8 *blob, char **out_msg)
1755 gboolean usable = TRUE;
1756 gboolean full_aot, safepoints;
1757 guint32 excluded_cpu_optimizations;
1759 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1760 msg = g_strdup_printf ("doesn't match assembly");
1764 build_info = mono_get_runtime_build_info ();
1765 if (strlen ((const char *)info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1766 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1769 g_free (build_info);
1771 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1773 if (mono_aot_only && !full_aot) {
1774 msg = g_strdup_printf ("not compiled with --aot=full");
1777 if (!mono_aot_only && full_aot) {
1778 msg = g_strdup_printf ("compiled with --aot=full");
1781 if (mono_llvm_only && !(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1782 msg = g_strdup_printf ("not compiled with --aot=llvmonly");
1785 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1786 msg = g_strdup_printf ("not compiled for debugging");
1790 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1791 if (info->opts & excluded_cpu_optimizations) {
1792 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1796 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1797 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1801 if (info->gc_name_index != -1) {
1802 char *gc_name = (char*)&blob [info->gc_name_index];
1803 const char *current_gc_name = mono_gc_get_gc_name ();
1805 if (strcmp (current_gc_name, gc_name) != 0) {
1806 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1811 safepoints = info->flags & MONO_AOT_FILE_FLAG_SAFEPOINTS;
1813 if (!safepoints && mono_threads_is_coop_enabled ()) {
1814 msg = g_strdup_printf ("not compiled with safepoints");
1823 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1826 get_call_table_entry (void *table, int index)
1828 #if defined(TARGET_ARM)
1833 ins_addr = (guint32*)table + index;
1835 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1837 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1838 return (char*)ins_addr + (offset * 2) + 8 + 1;
1840 offset = (((int)ins & 0xffffff) << 8) >> 8;
1841 return (char*)ins_addr + (offset * 4) + 8;
1843 #elif defined(TARGET_ARM64)
1844 return mono_arch_get_call_target ((guint8*)table + (index * 4) + 4);
1845 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1846 /* The callee expects an ip which points after the call */
1847 return mono_arch_get_call_target ((guint8*)table + (index * 5) + 5);
1849 g_assert_not_reached ();
1857 * Initialize the shared got entries for AMODULE.
1860 init_amodule_got (MonoAotModule *amodule)
1864 MonoJumpInfo *patches;
1865 guint32 got_offsets [128];
1869 /* These can't be initialized in load_aot_module () */
1870 if (amodule->shared_got [0] || amodule->got_initializing)
1873 amodule->got_initializing = TRUE;
1875 mp = mono_mempool_new ();
1876 npatches = amodule->info.nshared_got_entries;
1877 for (i = 0; i < npatches; ++i)
1878 got_offsets [i] = i;
1879 patches = decode_patches (amodule, mp, npatches, FALSE, got_offsets);
1881 for (i = 0; i < npatches; ++i) {
1884 if (ji->type == MONO_PATCH_INFO_GC_CARD_TABLE_ADDR && !mono_gc_is_moving ()) {
1885 amodule->shared_got [i] = NULL;
1886 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_START && !mono_gc_is_moving ()) {
1887 amodule->shared_got [i] = NULL;
1888 } else if (ji->type == MONO_PATCH_INFO_GC_NURSERY_BITS && !mono_gc_is_moving ()) {
1889 amodule->shared_got [i] = NULL;
1890 } else if (ji->type == MONO_PATCH_INFO_IMAGE) {
1891 amodule->shared_got [i] = amodule->assembly->image;
1892 } else if (ji->type == MONO_PATCH_INFO_MSCORLIB_GOT_ADDR) {
1893 if (mono_defaults.corlib) {
1894 MonoAotModule *mscorlib_amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
1896 if (mscorlib_amodule)
1897 amodule->shared_got [i] = mscorlib_amodule->got;
1899 amodule->shared_got [i] = amodule->got;
1901 } else if (ji->type == MONO_PATCH_INFO_AOT_MODULE) {
1902 amodule->shared_got [i] = amodule;
1904 amodule->shared_got [i] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, ji, FALSE, &error);
1905 mono_error_assert_ok (&error);
1910 for (i = 0; i < npatches; ++i)
1911 amodule->got [i] = amodule->shared_got [i];
1913 if (amodule->llvm_got) {
1914 for (i = 0; i < npatches; ++i)
1915 amodule->llvm_got [i] = amodule->shared_got [i];
1918 mono_mempool_destroy (mp);
1922 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1924 char *aot_name, *found_aot_name;
1925 MonoAotModule *amodule;
1927 gboolean usable = TRUE;
1928 char *version_symbol = NULL;
1930 gpointer *globals = NULL;
1931 MonoAotFileInfo *info = NULL;
1933 gboolean do_load_image = TRUE;
1934 int align_double, align_int64;
1935 guint8 *aot_data = NULL;
1937 if (mono_compile_aot)
1940 if (assembly->image->aot_module)
1942 * Already loaded. This can happen because the assembly loading code might invoke
1943 * the assembly load hooks multiple times for the same assembly.
1947 if (image_is_dynamic (assembly->image) || assembly->ref_only)
1951 if (static_aot_modules)
1952 info = (MonoAotFileInfo *)g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1959 found_aot_name = NULL;
1962 /* Statically linked AOT module */
1963 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1964 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.", aot_name);
1965 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1966 globals = (void **)info->globals;
1972 if (enable_aot_cache)
1973 sofile = aot_cache_load_module (assembly, &aot_name);
1975 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
1977 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1979 found_aot_name = g_strdup (aot_name);
1981 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' not found: %s", aot_name, err);
1987 char *basename = g_path_get_basename (assembly->image->name);
1988 aot_name = g_strdup_printf ("%s/mono/aot-cache/%s/%s%s", mono_assembly_getrootdir(), MONO_ARCHITECTURE, basename, MONO_SOLIB_EXT);
1990 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1992 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' not found: %s", aot_name, err);
2000 for (l = mono_aot_paths; l; l = l->next) {
2001 char *path = l->data;
2003 char *basename = g_path_get_basename (assembly->image->name);
2004 aot_name = g_strdup_printf ("%s/%s%s", path, basename, MONO_SOLIB_EXT);
2005 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
2007 found_aot_name = g_strdup (aot_name);
2009 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' not found: %s", aot_name, err);
2019 if (mono_aot_only && assembly->image->tables [MONO_TABLE_METHOD].rows) {
2020 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
2021 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
2029 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
2030 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
2033 // Copy aotid to MonoImage
2034 memcpy(&assembly->image->aotid, info->aotid, 16);
2036 if (version_symbol) {
2037 /* Old file format */
2038 version = atoi (version_symbol);
2041 version = info->version;
2044 if (version != MONO_AOT_FILE_VERSION) {
2045 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
2051 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2052 aot_data = open_aot_data (assembly, info, &handle);
2054 blob = aot_data + info->table_offsets [MONO_AOT_TABLE_BLOB];
2056 blob = (guint8 *)info->blob;
2059 usable = check_usable (assembly, info, blob, &msg);
2063 if (mono_aot_only) {
2064 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", found_aot_name, msg);
2066 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.", found_aot_name, msg);
2069 g_free (found_aot_name);
2071 mono_dl_close (sofile);
2072 assembly->image->aot_module = NULL;
2077 align_double = MONO_ABI_ALIGNOF (double);
2078 align_int64 = MONO_ABI_ALIGNOF (gint64);
2079 g_assert (info->double_align == align_double);
2080 g_assert (info->long_align == align_int64);
2081 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
2083 amodule = g_new0 (MonoAotModule, 1);
2084 amodule->aot_name = found_aot_name;
2085 amodule->assembly = assembly;
2087 memcpy (&amodule->info, info, sizeof (*info));
2089 amodule->got = (void **)amodule->info.jit_got;
2090 amodule->llvm_got = (void **)amodule->info.llvm_got;
2091 amodule->globals = globals;
2092 amodule->sofile = sofile;
2093 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
2094 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2095 amodule->shared_got = g_new0 (gpointer, info->nshared_got_entries);
2097 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2098 for (i = 0; i < MONO_AOT_TABLE_NUM; ++i)
2099 amodule->tables [i] = aot_data + info->table_offsets [i];
2102 mono_os_mutex_init_recursive (&amodule->mutex);
2104 /* Read image table */
2106 guint32 table_len, i;
2109 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA)
2110 table = amodule->tables [MONO_AOT_TABLE_IMAGE_TABLE];
2112 table = (char *)info->image_table;
2115 table_len = *(guint32*)table;
2116 table += sizeof (guint32);
2117 amodule->image_table = g_new0 (MonoImage*, table_len);
2118 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
2119 amodule->image_guids = g_new0 (char*, table_len);
2120 amodule->image_table_len = table_len;
2121 for (i = 0; i < table_len; ++i) {
2122 MonoAssemblyName *aname = &(amodule->image_names [i]);
2124 aname->name = g_strdup (table);
2125 table += strlen (table) + 1;
2126 amodule->image_guids [i] = g_strdup (table);
2127 table += strlen (table) + 1;
2129 aname->culture = g_strdup (table);
2130 table += strlen (table) + 1;
2131 memcpy (aname->public_key_token, table, strlen (table) + 1);
2132 table += strlen (table) + 1;
2134 table = (char *)ALIGN_PTR_TO (table, 8);
2135 aname->flags = *(guint32*)table;
2137 aname->major = *(guint32*)table;
2139 aname->minor = *(guint32*)table;
2141 aname->build = *(guint32*)table;
2143 aname->revision = *(guint32*)table;
2148 amodule->jit_code_start = (guint8 *)info->jit_code_start;
2149 amodule->jit_code_end = (guint8 *)info->jit_code_end;
2150 if (info->flags & MONO_AOT_FILE_FLAG_SEPARATE_DATA) {
2151 amodule->blob = amodule->tables [MONO_AOT_TABLE_BLOB];
2152 amodule->method_info_offsets = amodule->tables [MONO_AOT_TABLE_METHOD_INFO_OFFSETS];
2153 amodule->ex_info_offsets = amodule->tables [MONO_AOT_TABLE_EX_INFO_OFFSETS];
2154 amodule->class_info_offsets = amodule->tables [MONO_AOT_TABLE_CLASS_INFO_OFFSETS];
2155 amodule->class_name_table = amodule->tables [MONO_AOT_TABLE_CLASS_NAME];
2156 amodule->extra_method_table = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_TABLE];
2157 amodule->extra_method_info_offsets = amodule->tables [MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS];
2158 amodule->got_info_offsets = amodule->tables [MONO_AOT_TABLE_GOT_INFO_OFFSETS];
2159 amodule->llvm_got_info_offsets = amodule->tables [MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS];
2161 amodule->blob = info->blob;
2162 amodule->method_info_offsets = (guint32 *)info->method_info_offsets;
2163 amodule->ex_info_offsets = (guint32 *)info->ex_info_offsets;
2164 amodule->class_info_offsets = (guint32 *)info->class_info_offsets;
2165 amodule->class_name_table = (guint16 *)info->class_name_table;
2166 amodule->extra_method_table = (guint32 *)info->extra_method_table;
2167 amodule->extra_method_info_offsets = (guint32 *)info->extra_method_info_offsets;
2168 amodule->got_info_offsets = info->got_info_offsets;
2169 amodule->llvm_got_info_offsets = info->llvm_got_info_offsets;
2171 amodule->unbox_trampolines = (guint32 *)info->unbox_trampolines;
2172 amodule->unbox_trampolines_end = (guint32 *)info->unbox_trampolines_end;
2173 amodule->unbox_trampoline_addresses = (guint32 *)info->unbox_trampoline_addresses;
2174 amodule->unwind_info = (guint8 *)info->unwind_info;
2175 amodule->mem_begin = amodule->jit_code_start;
2176 amodule->mem_end = (guint8 *)info->mem_end;
2177 amodule->plt = (guint8 *)info->plt;
2178 amodule->plt_end = (guint8 *)info->plt_end;
2179 amodule->mono_eh_frame = (guint8 *)info->mono_eh_frame;
2180 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = (guint8 *)info->specific_trampolines;
2181 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = (guint8 *)info->static_rgctx_trampolines;
2182 amodule->trampolines [MONO_AOT_TRAMP_IMT] = (guint8 *)info->imt_trampolines;
2183 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = (guint8 *)info->gsharedvt_arg_trampolines;
2185 if (!strcmp (assembly->aname.name, "mscorlib"))
2186 mscorlib_aot_module = amodule;
2188 /* Compute method addresses */
2189 amodule->methods = (void **)g_malloc0 (amodule->info.nmethods * sizeof (gpointer));
2190 for (i = 0; i < amodule->info.nmethods; ++i) {
2193 if (amodule->info.llvm_get_method) {
2194 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2196 addr = get_method (i);
2199 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2200 if (!addr && amodule->info.method_addresses) {
2201 addr = get_call_table_entry (amodule->info.method_addresses, i);
2203 if (addr == amodule->info.method_addresses)
2207 amodule->methods [i] = GINT_TO_POINTER (-1);
2209 amodule->methods [i] = addr;
2212 if (make_unreadable) {
2213 #ifndef TARGET_WIN32
2215 guint8 *page_start, *page_end;
2218 addr = amodule->mem_begin;
2220 len = amodule->mem_end - amodule->mem_begin;
2222 /* Round down in both directions to avoid modifying data which is not ours */
2223 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2224 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
2225 if (page_end > page_start) {
2226 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
2227 g_assert (err == 0);
2232 /* Compute the boundaries of LLVM code */
2233 if (info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM)
2234 compute_llvm_code_range (amodule, &amodule->llvm_code_start, &amodule->llvm_code_end);
2238 if (amodule->jit_code_start) {
2239 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->jit_code_start);
2240 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->jit_code_end);
2242 if (amodule->llvm_code_start) {
2243 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->llvm_code_start);
2244 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->llvm_code_end);
2247 g_hash_table_insert (aot_modules, assembly, amodule);
2250 if (amodule->jit_code_start)
2251 mono_jit_info_add_aot_module (assembly->image, amodule->jit_code_start, amodule->jit_code_end);
2252 if (amodule->llvm_code_start)
2253 mono_jit_info_add_aot_module (assembly->image, amodule->llvm_code_start, amodule->llvm_code_end);
2255 assembly->image->aot_module = amodule;
2257 if (mono_aot_only && !mono_llvm_only) {
2259 find_amodule_symbol (amodule, "specific_trampolines_page", (gpointer *)&code);
2260 amodule->use_page_trampolines = code != NULL;
2261 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2265 * Register the plt region as a single trampoline so we can unwind from this code
2267 mono_aot_tramp_info_register (
2268 mono_tramp_info_create (
2271 amodule->plt_end - amodule->plt,
2273 mono_unwind_get_cie_program ()
2279 * Since we store methoddef and classdef tokens when referring to methods/classes in
2280 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2281 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2282 * non-lazily, since we can't handle out-of-date errors later.
2283 * The cached class info also depends on the exact assemblies.
2285 #if defined(__native_client__)
2286 /* TODO: Don't 'load_image' on mscorlib due to a */
2287 /* recursive loading problem. This should be */
2288 /* removed if mscorlib is loaded from disk. */
2289 if (strncmp(assembly->aname.name, "mscorlib", 8)) {
2290 do_load_image = TRUE;
2292 do_load_image = FALSE;
2295 if (do_load_image) {
2296 for (i = 0; i < amodule->image_table_len; ++i) {
2298 load_image (amodule, i, &error);
2299 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2303 if (amodule->out_of_date) {
2304 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: Module %s is unusable because a dependency is out-of-date.", assembly->image->name);
2306 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);
2308 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: image '%s' found.", found_aot_name);
2313 * mono_aot_register_module:
2315 * This should be called by embedding code to register AOT modules statically linked
2316 * into the executable. AOT_INFO should be the value of the
2317 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2320 mono_aot_register_module (gpointer *aot_info)
2324 MonoAotFileInfo *info = (MonoAotFileInfo *)aot_info;
2326 g_assert (info->version == MONO_AOT_FILE_VERSION);
2328 if (!(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
2329 globals = (void **)info->globals;
2333 aname = (char *)info->assembly_name;
2335 /* This could be called before startup */
2339 if (!static_aot_modules)
2340 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2342 g_hash_table_insert (static_aot_modules, aname, info);
2349 mono_aot_init (void)
2351 mono_os_mutex_init_recursive (&aot_mutex);
2352 mono_os_mutex_init_recursive (&aot_page_mutex);
2353 aot_modules = g_hash_table_new (NULL, NULL);
2355 #ifndef __native_client__
2356 mono_install_assembly_load_hook (load_aot_module, NULL);
2358 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2360 char *lastaot = g_getenv ("MONO_LASTAOT");
2362 mono_last_aot_method = atoi (lastaot);
2369 mono_aot_cleanup (void)
2371 if (aot_jit_icall_hash)
2372 g_hash_table_destroy (aot_jit_icall_hash);
2374 g_hash_table_destroy (aot_modules);
2378 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2385 info->vtable_size = decode_value (buf, &buf);
2386 if (info->vtable_size == -1)
2389 flags = decode_value (buf, &buf);
2390 info->ghcimpl = (flags >> 0) & 0x1;
2391 info->has_finalize = (flags >> 1) & 0x1;
2392 info->has_cctor = (flags >> 2) & 0x1;
2393 info->has_nested_classes = (flags >> 3) & 0x1;
2394 info->blittable = (flags >> 4) & 0x1;
2395 info->has_references = (flags >> 5) & 0x1;
2396 info->has_static_refs = (flags >> 6) & 0x1;
2397 info->no_special_static_fields = (flags >> 7) & 0x1;
2398 info->is_generic_container = (flags >> 8) & 0x1;
2400 if (info->has_cctor) {
2401 res = decode_method_ref (module, &ref, buf, &buf, &error);
2402 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
2405 info->cctor_token = ref.token;
2407 if (info->has_finalize) {
2408 res = decode_method_ref (module, &ref, buf, &buf, &error);
2409 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
2412 info->finalize_image = ref.image;
2413 info->finalize_token = ref.token;
2416 info->instance_size = decode_value (buf, &buf);
2417 info->class_size = decode_value (buf, &buf);
2418 info->packing_size = decode_value (buf, &buf);
2419 info->min_align = decode_value (buf, &buf);
2427 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot, MonoError *error)
2430 MonoClass *klass = vtable->klass;
2431 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2433 MonoCachedClassInfo class_info;
2438 MonoError inner_error;
2442 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2445 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2448 err = decode_cached_class_info (amodule, &class_info, p, &p);
2452 for (i = 0; i < slot; ++i) {
2453 decode_method_ref (amodule, &ref, p, &p, &inner_error);
2454 mono_error_cleanup (&inner_error); /* FIXME don't swallow the error */
2457 res = decode_method_ref (amodule, &ref, p, &p, &inner_error);
2458 mono_error_cleanup (&inner_error); /* FIXME don't swallow the error */
2461 if (ref.no_aot_trampoline)
2464 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2467 addr = mono_aot_get_method_from_token (domain, ref.image, ref.token, error);
2472 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2474 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
2478 if (klass->rank || !klass->type_token || !amodule)
2481 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2483 err = decode_cached_class_info (amodule, res, p, &p);
2491 * mono_aot_get_class_from_name:
2493 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2494 * using a cache stored in the AOT file.
2495 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2497 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2501 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2503 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
2504 guint16 *table, *entry;
2507 char full_name_buf [1024];
2509 const char *name2, *name_space2;
2511 guint32 cols [MONO_TYPEDEF_SIZE];
2512 GHashTable *nspace_table;
2514 if (!amodule || !amodule->class_name_table)
2517 amodule_lock (amodule);
2521 /* First look in the cache */
2522 if (!amodule->name_cache)
2523 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2524 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2526 *klass = (MonoClass *)g_hash_table_lookup (nspace_table, name);
2528 amodule_unlock (amodule);
2533 table_size = amodule->class_name_table [0];
2534 table = amodule->class_name_table + 1;
2536 if (name_space [0] == '\0')
2537 full_name = g_strdup_printf ("%s", name);
2539 if (strlen (name_space) + strlen (name) < 1000) {
2540 sprintf (full_name_buf, "%s.%s", name_space, name);
2541 full_name = full_name_buf;
2543 full_name = g_strdup_printf ("%s.%s", name_space, name);
2546 hash = mono_metadata_str_hash (full_name) % table_size;
2547 if (full_name != full_name_buf)
2550 entry = &table [hash * 2];
2552 if (entry [0] != 0) {
2553 t = &image->tables [MONO_TABLE_TYPEDEF];
2556 guint32 index = entry [0];
2557 guint32 next = entry [1];
2558 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2560 name_table_accesses ++;
2562 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2564 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2565 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2567 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2569 amodule_unlock (amodule);
2570 *klass = mono_class_get_checked (image, token, &error);
2571 if (!mono_error_ok (&error))
2572 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2576 amodule_lock (amodule);
2577 nspace_table = (GHashTable *)g_hash_table_lookup (amodule->name_cache, name_space);
2578 if (!nspace_table) {
2579 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2580 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2582 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2583 amodule_unlock (amodule);
2589 entry = &table [next * 2];
2596 amodule_unlock (amodule);
2601 /* Compute the boundaries of the LLVM code for AMODULE. */
2603 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end)
2606 int version, fde_count;
2609 if (amodule->info.llvm_get_method) {
2610 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
2612 *code_start = (guint8 *)get_method (-1);
2613 *code_end = (guint8 *)get_method (-2);
2615 g_assert (*code_end > *code_start);
2619 g_assert (amodule->mono_eh_frame);
2621 p = amodule->mono_eh_frame;
2623 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2627 g_assert (version == 3);
2630 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2632 fde_count = *(guint32*)p;
2636 if (fde_count > 0) {
2637 *code_start = (guint8 *)amodule->methods [table [0]];
2638 *code_end = (guint8*)amodule->methods [table [(fde_count - 1) * 2]] + table [fde_count * 2];
2646 is_llvm_code (MonoAotModule *amodule, guint8 *code)
2648 if ((guint8*)code >= amodule->llvm_code_start && (guint8*)code < amodule->llvm_code_end)
2655 is_thumb_code (MonoAotModule *amodule, guint8 *code)
2657 if (is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_THUMB))
2664 * decode_llvm_mono_eh_frame:
2666 * Decode the EH information emitted by our modified LLVM compiler and construct a
2667 * MonoJitInfo structure from it.
2668 * If JINFO is NULL, set OUT_LLVM_CLAUSES to the number of llvm level clauses.
2669 * This function is async safe when called in async context.
2672 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain, MonoJitInfo *jinfo,
2673 guint8 *code, guint32 code_len,
2674 MonoJitExceptionInfo *clauses, int num_clauses,
2676 int *this_reg, int *this_offset, int *out_llvm_clauses)
2678 guint8 *p, *code1, *code2;
2679 guint8 *fde, *cie, *code_start, *code_end;
2680 int version, fde_count;
2682 int i, pos, left, right;
2683 MonoJitExceptionInfo *ei;
2684 guint32 fde_len, ei_len, nested_len, nindex;
2685 gpointer *type_info;
2686 MonoLLVMFDEInfo info;
2690 async = mono_thread_info_is_async_context ();
2692 if (!amodule->mono_eh_frame) {
2694 *out_llvm_clauses = num_clauses;
2697 memcpy (jinfo->clauses, clauses, num_clauses * sizeof (MonoJitExceptionInfo));
2701 g_assert (amodule->mono_eh_frame && code);
2703 p = amodule->mono_eh_frame;
2705 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2709 g_assert (version == 3);
2711 /* func_encoding = *p; */
2713 p = (guint8 *)ALIGN_PTR_TO (p, 4);
2715 fde_count = *(guint32*)p;
2719 /* There is +1 entry in the table */
2720 cie = p + ((fde_count + 1) * 8);
2722 /* Binary search in the table to find the entry for code */
2726 pos = (left + right) / 2;
2728 /* The table contains method index/fde offset pairs */
2729 g_assert (table [(pos * 2)] != -1);
2730 code1 = (guint8 *)amodule->methods [table [(pos * 2)]];
2731 if (pos + 1 == fde_count) {
2732 code2 = amodule->llvm_code_end;
2734 g_assert (table [(pos + 1) * 2] != -1);
2735 code2 = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2740 else if (code >= code2)
2746 code_start = (guint8 *)amodule->methods [table [(pos * 2)]];
2747 if (pos + 1 == fde_count) {
2748 /* The +1 entry in the table contains the length of the last method */
2749 int len = table [(pos + 1) * 2];
2750 code_end = code_start + len;
2752 code_end = (guint8 *)amodule->methods [table [(pos + 1) * 2]];
2755 code_len = code_end - code_start;
2757 g_assert (code >= code_start && code < code_end);
2759 if (is_thumb_code (amodule, code_start))
2760 /* Clear thumb flag */
2761 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2763 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2764 /* This won't overflow because there is +1 entry in the table */
2765 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2767 /* Compute lengths */
2768 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info, NULL, NULL, NULL);
2771 /* These are leaked, but the leak is bounded */
2772 ei = mono_domain_alloc0_lock_free (domain, info.ex_info_len * sizeof (MonoJitExceptionInfo));
2773 type_info = mono_domain_alloc0_lock_free (domain, info.ex_info_len * sizeof (gpointer));
2774 unw_info = mono_domain_alloc0_lock_free (domain, info.unw_info_len);
2776 ei = (MonoJitExceptionInfo *)g_malloc0 (info.ex_info_len * sizeof (MonoJitExceptionInfo));
2777 type_info = (gpointer *)g_malloc0 (info.ex_info_len * sizeof (gpointer));
2778 unw_info = (guint8*)g_malloc0 (info.unw_info_len);
2780 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info, ei, type_info, unw_info);
2782 ei_len = info.ex_info_len;
2783 *this_reg = info.this_reg;
2784 *this_offset = info.this_offset;
2787 * LLVM might represent one IL region with multiple regions.
2790 /* Count number of nested clauses */
2792 for (i = 0; i < ei_len; ++i) {
2793 /* This might be unaligned */
2794 gint32 cindex1 = read32 (type_info [i]);
2797 for (l = nesting [cindex1]; l; l = l->next)
2802 *out_llvm_clauses = ei_len + nested_len;
2806 /* Store the unwind info addr/length in the MonoJitInfo structure itself so its async safe */
2807 MonoUnwindJitInfo *jinfo_unwind = mono_jit_info_get_unwind_info (jinfo);
2808 g_assert (jinfo_unwind);
2809 jinfo_unwind->unw_info = unw_info;
2810 jinfo_unwind->unw_info_len = info.unw_info_len;
2812 for (i = 0; i < ei_len; ++i) {
2814 * clauses contains the original IL exception info saved by the AOT
2815 * compiler, we have to combine that with the information produced by LLVM
2817 /* The type_info entries contain IL clause indexes */
2818 int clause_index = read32 (type_info [i]);
2819 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2820 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2822 g_assert (clause_index < num_clauses);
2823 jei->flags = orig_jei->flags;
2824 jei->data.catch_class = orig_jei->data.catch_class;
2826 jei->try_start = ei [i].try_start;
2827 jei->try_end = ei [i].try_end;
2828 jei->handler_start = ei [i].handler_start;
2829 jei->clause_index = clause_index;
2831 if (is_thumb_code (amodule, (guint8 *)jei->try_start)) {
2832 jei->try_start = (void*)((mgreg_t)jei->try_start & ~1);
2833 jei->try_end = (void*)((mgreg_t)jei->try_end & ~1);
2834 /* Make sure we transition to thumb when a handler starts */
2835 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2839 /* See exception_cb () in mini-llvm.c as to why this is needed */
2841 for (i = 0; i < ei_len; ++i) {
2842 gint32 cindex1 = read32 (type_info [i]);
2845 for (l = nesting [cindex1]; l; l = l->next) {
2846 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2847 MonoJitExceptionInfo *nesting_ei;
2848 MonoJitExceptionInfo *nesting_clause = &clauses [nesting_cindex];
2850 nesting_ei = &jinfo->clauses [nindex];
2853 memcpy (nesting_ei, &jinfo->clauses [i], sizeof (MonoJitExceptionInfo));
2854 nesting_ei->flags = nesting_clause->flags;
2855 nesting_ei->data.catch_class = nesting_clause->data.catch_class;
2856 nesting_ei->clause_index = nesting_cindex;
2859 g_assert (nindex == ei_len + nested_len);
2863 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2867 if (async_context) {
2868 res = mono_domain_alloc0_lock_free (domain, size);
2869 InterlockedExchangeAdd (&async_jit_info_size, size);
2871 res = mono_domain_alloc0 (domain, size);
2877 * LOCKING: Acquires the domain lock.
2878 * In async context, this is async safe.
2881 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2882 MonoMethod *method, guint8* ex_info,
2883 guint8 *code, guint32 code_len)
2886 int i, buf_len, num_clauses, len;
2888 MonoJitInfoFlags flags = JIT_INFO_NONE;
2889 guint unwind_info, eflags;
2890 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2891 gboolean from_llvm, has_gc_map;
2893 int try_holes_info_size, num_holes;
2894 int this_reg = 0, this_offset = 0;
2897 /* Load the method info from the AOT file */
2898 async = mono_thread_info_is_async_context ();
2901 eflags = decode_value (p, &p);
2902 has_generic_jit_info = (eflags & 1) != 0;
2903 has_dwarf_unwind_info = (eflags & 2) != 0;
2904 has_clauses = (eflags & 4) != 0;
2905 has_seq_points = (eflags & 8) != 0;
2906 from_llvm = (eflags & 16) != 0;
2907 has_try_block_holes = (eflags & 32) != 0;
2908 has_gc_map = (eflags & 64) != 0;
2909 has_arch_eh_jit_info = (eflags & 128) != 0;
2911 if (has_dwarf_unwind_info) {
2912 unwind_info = decode_value (p, &p);
2913 g_assert (unwind_info < (1 << 30));
2915 unwind_info = decode_value (p, &p);
2917 if (has_generic_jit_info)
2918 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2920 if (has_try_block_holes) {
2921 num_holes = decode_value (p, &p);
2922 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2923 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2925 num_holes = try_holes_info_size = 0;
2928 if (has_arch_eh_jit_info) {
2929 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2930 /* Overwrite the original code_len which includes alignment padding */
2931 code_len = decode_value (p, &p);
2934 /* Exception table */
2936 num_clauses = decode_value (p, &p);
2941 MonoJitExceptionInfo *clauses;
2945 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2949 if (num_clauses < 16) {
2950 clauses = g_newa (MonoJitExceptionInfo, num_clauses);
2951 nesting = g_newa (GSList*, num_clauses);
2953 clauses = alloc0_jit_info_data (domain, sizeof (MonoJitExceptionInfo) * num_clauses, TRUE);
2954 nesting = alloc0_jit_info_data (domain, sizeof (GSList*) * num_clauses, TRUE);
2956 memset (clauses, 0, sizeof (MonoJitExceptionInfo) * num_clauses);
2957 memset (nesting, 0, sizeof (GSList*) * num_clauses);
2959 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2960 nesting = g_new0 (GSList*, num_clauses);
2963 for (i = 0; i < num_clauses; ++i) {
2964 MonoJitExceptionInfo *ei = &clauses [i];
2966 ei->flags = decode_value (p, &p);
2968 if (!(ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)) {
2969 int len = decode_value (p, &p);
2975 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
2976 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2981 ei->clause_index = i;
2983 ei->try_offset = decode_value (p, &p);
2984 ei->try_len = decode_value (p, &p);
2985 ei->handler_offset = decode_value (p, &p);
2986 ei->handler_len = decode_value (p, &p);
2988 /* Read the list of nesting clauses */
2990 int nesting_index = decode_value (p, &p);
2991 if (nesting_index == -1)
2995 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2999 flags |= JIT_INFO_HAS_UNWIND_INFO;
3001 int num_llvm_clauses;
3002 /* Get the length first */
3003 decode_llvm_mono_eh_frame (amodule, domain, NULL, code, code_len, clauses, num_clauses, nesting, &this_reg, &this_offset, &num_llvm_clauses);
3004 len = mono_jit_info_size (flags, num_llvm_clauses, num_holes);
3005 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
3006 mono_jit_info_init (jinfo, method, code, code_len, flags, num_llvm_clauses, num_holes);
3008 decode_llvm_mono_eh_frame (amodule, domain, jinfo, code, code_len, clauses, num_clauses, nesting, &this_reg, &this_offset, NULL);
3012 for (i = 0; i < num_clauses; ++i)
3013 g_slist_free (nesting [i]);
3017 len = mono_jit_info_size (flags, num_clauses, num_holes);
3018 jinfo = (MonoJitInfo *)alloc0_jit_info_data (domain, len, async);
3019 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
3021 for (i = 0; i < jinfo->num_clauses; ++i) {
3022 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3024 ei->flags = decode_value (p, &p);
3026 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
3027 /* Not used for catch clauses */
3028 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
3029 ei->exvar_offset = decode_value (p, &p);
3031 ei->exvar_offset = decode_value (p, &p);
3034 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
3035 ei->data.filter = code + decode_value (p, &p);
3037 int len = decode_value (p, &p);
3043 ei->data.catch_class = decode_klass_ref (amodule, p, &p, &error);
3044 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3049 ei->try_start = code + decode_value (p, &p);
3050 ei->try_end = code + decode_value (p, &p);
3051 ei->handler_start = code + decode_value (p, &p);
3054 jinfo->unwind_info = unwind_info;
3055 jinfo->domain_neutral = 0;
3056 jinfo->from_aot = 1;
3059 if (has_try_block_holes) {
3060 MonoTryBlockHoleTableJitInfo *table;
3062 g_assert (jinfo->has_try_block_holes);
3064 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
3067 table->num_holes = (guint16)num_holes;
3068 for (i = 0; i < num_holes; ++i) {
3069 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
3070 hole->clause = decode_value (p, &p);
3071 hole->length = decode_value (p, &p);
3072 hole->offset = decode_value (p, &p);
3076 if (has_arch_eh_jit_info) {
3077 MonoArchEHJitInfo *eh_info;
3079 g_assert (jinfo->has_arch_eh_info);
3081 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
3082 eh_info->stack_size = decode_value (p, &p);
3083 eh_info->epilog_size = decode_value (p, &p);
3087 /* The rest is not needed in async mode */
3088 jinfo->async = TRUE;
3089 jinfo->d.aot_info = amodule;
3094 if (has_generic_jit_info) {
3095 MonoGenericJitInfo *gi;
3098 g_assert (jinfo->has_generic_jit_info);
3100 gi = mono_jit_info_get_generic_jit_info (jinfo);
3103 gi->nlocs = decode_value (p, &p);
3105 gi->locations = (MonoDwarfLocListEntry *)alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
3106 for (i = 0; i < gi->nlocs; ++i) {
3107 MonoDwarfLocListEntry *entry = &gi->locations [i];
3109 entry->is_reg = decode_value (p, &p);
3110 entry->reg = decode_value (p, &p);
3112 entry->offset = decode_value (p, &p);
3114 entry->from = decode_value (p, &p);
3115 entry->to = decode_value (p, &p);
3120 gi->has_this = this_reg != -1;
3121 gi->this_reg = this_reg;
3122 gi->this_offset = this_offset;
3124 gi->has_this = decode_value (p, &p);
3125 gi->this_reg = decode_value (p, &p);
3126 gi->this_offset = decode_value (p, &p);
3130 len = decode_value (p, &p);
3134 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p, &error);
3135 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3138 gi->generic_sharing_context = alloc0_jit_info_data (domain, sizeof (MonoGenericSharingContext), async);
3139 if (decode_value (p, &p)) {
3141 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
3143 gsctx->is_gsharedvt = TRUE;
3147 if (method && has_seq_points) {
3148 MonoSeqPointInfo *seq_points;
3150 p += mono_seq_point_info_read (&seq_points, p, FALSE);
3152 mono_domain_lock (domain);
3153 /* This could be set already since this function can be called more than once for the same method */
3154 if (!g_hash_table_lookup (domain_jit_info (domain)->seq_points, method))
3155 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
3157 mono_seq_point_info_free (seq_points);
3158 mono_domain_unlock (domain);
3161 /* Load debug info */
3162 buf_len = decode_value (p, &p);
3164 mono_debug_add_aot_method (domain, method, code, p, buf_len);
3168 int map_size = decode_value (p, &p);
3169 /* The GC map requires 4 bytes of alignment */
3170 while ((guint64)(gsize)p % 4)
3176 if (amodule != jinfo->d.method->klass->image->aot_module) {
3179 ji_to_amodule = g_hash_table_new (NULL, NULL);
3180 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
3188 amodule_contains_code_addr (MonoAotModule *amodule, guint8 *code)
3190 return (code >= amodule->jit_code_start && code <= amodule->jit_code_end) ||
3191 (code >= amodule->llvm_code_start && code <= amodule->llvm_code_end);
3195 * mono_aot_get_unwind_info:
3197 * Return a pointer to the DWARF unwind info belonging to JI.
3200 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
3202 MonoAotModule *amodule;
3204 guint8 *code = (guint8 *)ji->code_start;
3207 amodule = (MonoAotModule *)ji->d.aot_info;
3209 amodule = (MonoAotModule *)jinfo_get_method (ji)->klass->image->aot_module;
3211 g_assert (ji->from_aot);
3213 if (!amodule_contains_code_addr (amodule, code)) {
3214 /* ji belongs to a different aot module than amodule */
3216 g_assert (ji_to_amodule);
3217 amodule = (MonoAotModule *)g_hash_table_lookup (ji_to_amodule, ji);
3219 g_assert (amodule_contains_code_addr (amodule, code));
3223 p = amodule->unwind_info + ji->unwind_info;
3224 *unwind_info_len = decode_value (p, &p);
3229 msort_method_addresses_internal (gpointer *array, int *indexes, int lo, int hi, gpointer *scratch, int *scratch_indexes)
3231 int mid = (lo + hi) / 2;
3238 for (i = lo; i < hi; ++i)
3239 if (array [i] > array [i + 1])
3242 /* Already sorted */
3246 msort_method_addresses_internal (array, indexes, lo, mid, scratch, scratch_indexes);
3247 msort_method_addresses_internal (array, indexes, mid + 1, hi, scratch, scratch_indexes);
3249 if (array [mid] < array [mid + 1])
3255 for (i = lo; i <= hi; i ++) {
3256 if (t_lo <= mid && ((t_hi > hi) || array [t_lo] < array [t_hi])) {
3257 scratch [i] = array [t_lo];
3258 scratch_indexes [i] = indexes [t_lo];
3261 scratch [i] = array [t_hi];
3262 scratch_indexes [i] = indexes [t_hi];
3266 for (i = lo; i <= hi; ++i) {
3267 array [i] = scratch [i];
3268 indexes [i] = scratch_indexes [i];
3273 msort_method_addresses (gpointer *array, int *indexes, int len)
3276 int *scratch_indexes;
3278 scratch = g_new (gpointer, len);
3279 scratch_indexes = g_new (int, len);
3280 msort_method_addresses_internal (array, indexes, 0, len - 1, scratch, scratch_indexes);
3282 g_free (scratch_indexes);
3286 * mono_aot_find_jit_info:
3288 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3289 * to the jit info tables.
3290 * FIXME: Large sizes in the lock free allocator
3293 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3296 int pos, left, right, code_len;
3297 int method_index, table_len;
3299 MonoAotModule *amodule = (MonoAotModule *)image->aot_module;
3300 MonoMethod *method = NULL;
3302 guint8 *code, *ex_info, *p;
3306 guint8 *code1, *code2;
3313 nmethods = amodule->info.nmethods;
3315 if (domain != mono_get_root_domain ())
3319 if (!amodule_contains_code_addr (amodule, (guint8 *)addr))
3322 async = mono_thread_info_is_async_context ();
3324 /* Compute a sorted table mapping code to method indexes. */
3325 if (!amodule->sorted_methods) {
3327 gpointer *methods = g_new0 (gpointer, nmethods);
3328 int *method_indexes = g_new0 (int, nmethods);
3329 int methods_len = 0;
3331 for (i = 0; i < nmethods; ++i) {
3332 /* Skip the -1 entries to speed up sorting */
3333 if (amodule->methods [i] == GINT_TO_POINTER (-1))
3335 methods [methods_len] = amodule->methods [i];
3336 method_indexes [methods_len] = i;
3339 /* Use a merge sort as this is mostly sorted */
3340 msort_method_addresses (methods, method_indexes, methods_len);
3341 for (i = 0; i < methods_len -1; ++i)
3342 g_assert (methods [i] <= methods [i + 1]);
3343 amodule->sorted_methods_len = methods_len;
3344 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_methods, methods, NULL) != NULL)
3345 /* Somebody got in before us */
3347 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_method_indexes, method_indexes, NULL) != NULL)
3348 /* Somebody got in before us */
3349 g_free (method_indexes);
3352 /* Binary search in the sorted_methods table */
3353 methods = amodule->sorted_methods;
3354 methods_len = amodule->sorted_methods_len;
3355 code = (guint8 *)addr;
3357 right = methods_len;
3359 pos = (left + right) / 2;
3361 code1 = (guint8 *)methods [pos];
3362 if (pos + 1 == methods_len) {
3363 if (code1 >= amodule->jit_code_start && code1 < amodule->jit_code_end)
3364 code2 = amodule->jit_code_end;
3366 code2 = amodule->llvm_code_end;
3368 code2 = (guint8 *)methods [pos + 1];
3373 else if (code >= code2)
3379 g_assert (addr >= methods [pos]);
3380 if (pos + 1 < methods_len)
3381 g_assert (addr < methods [pos + 1]);
3382 method_index = amodule->sorted_method_indexes [pos];
3384 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3386 JitInfoMap *table = amodule->async_jit_info_table;
3390 len = table [0].method_index;
3391 for (i = 1; i < len; ++i) {
3392 if (table [i].method_index == method_index)
3393 return table [i].jinfo;
3398 code = (guint8 *)amodule->methods [method_index];
3399 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3401 if (pos == methods_len - 1) {
3402 if (code >= amodule->jit_code_start && code < amodule->jit_code_end)
3403 code_len = amodule->jit_code_end - code;
3405 code_len = amodule->llvm_code_end - code;
3407 code_len = (guint8*)methods [pos + 1] - (guint8*)methods [pos];
3410 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3412 /* Might be a wrapper/extra method */
3414 if (amodule->extra_methods) {
3415 amodule_lock (amodule);
3416 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3417 amodule_unlock (amodule);
3423 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3425 * This is hit for extra methods which are called directly, so they are
3426 * not in amodule->extra_methods.
3428 table_len = amodule->extra_method_info_offsets [0];
3429 table = amodule->extra_method_info_offsets + 1;
3436 pos = ((left + right) / 2);
3438 g_assert (pos < table_len);
3440 if (table [pos * 2] < method_index)
3442 else if (table [pos * 2] > method_index)
3448 p = amodule->blob + table [(pos * 2) + 1];
3449 method = decode_resolve_method_ref (amodule, p, &p, &error);
3450 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3452 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3456 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3457 method = mono_get_method_checked (image, token, NULL, NULL, &error);
3459 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3466 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3468 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code, code_len);
3470 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3472 /* Add it to the normal JitInfo tables */
3474 JitInfoMap *old_table, *new_table;
3478 * Use a simple inmutable table with linear search to cache async jit info entries.
3479 * This assumes that the number of entries is small.
3482 /* Copy the table, adding a new entry at the end */
3483 old_table = amodule->async_jit_info_table;
3485 len = old_table[0].method_index;
3488 new_table = (JitInfoMap *)alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3490 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3491 new_table [0].method_index = len + 1;
3492 new_table [len].method_index = method_index;
3493 new_table [len].jinfo = jinfo;
3495 mono_memory_barrier ();
3496 if (InterlockedCompareExchangePointer ((volatile gpointer *)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3500 mono_jit_info_table_add (domain, jinfo);
3503 if ((guint8*)addr >= (guint8*)jinfo->code_start + jinfo->code_size)
3504 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3511 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3520 case MONO_PATCH_INFO_METHOD:
3521 case MONO_PATCH_INFO_METHOD_JUMP:
3522 case MONO_PATCH_INFO_ICALL_ADDR:
3523 case MONO_PATCH_INFO_ICALL_ADDR_CALL:
3524 case MONO_PATCH_INFO_METHOD_RGCTX:
3525 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3529 res = decode_method_ref (aot_module, &ref, p, &p, &error);
3530 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3534 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)) {
3535 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3536 ji->type = MONO_PATCH_INFO_ABS;
3540 ji->data.method = ref.method;
3543 ji->data.method = mono_get_method_checked (ref.image, ref.token, NULL, NULL, &error);
3544 if (!ji->data.method)
3545 g_error ("AOT Runtime could not load method due to %s", mono_error_get_message (&error)); /* FIXME don't swallow the error */
3547 g_assert (ji->data.method);
3548 mono_class_init (ji->data.method->klass);
3552 case MONO_PATCH_INFO_INTERNAL_METHOD:
3553 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3554 guint32 len = decode_value (p, &p);
3556 ji->data.name = (char*)p;
3560 case MONO_PATCH_INFO_METHODCONST:
3562 ji->data.method = decode_resolve_method_ref (aot_module, p, &p, &error);
3563 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3564 if (!ji->data.method)
3567 case MONO_PATCH_INFO_VTABLE:
3568 case MONO_PATCH_INFO_CLASS:
3569 case MONO_PATCH_INFO_IID:
3570 case MONO_PATCH_INFO_ADJUSTED_IID:
3572 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3573 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3574 if (!ji->data.klass)
3577 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3578 ji->data.del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3579 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p, &error);
3580 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3581 if (!ji->data.del_tramp->klass)
3583 if (decode_value (p, &p)) {
3584 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3585 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3586 if (!ji->data.del_tramp->method)
3589 ji->data.del_tramp->is_virtual = decode_value (p, &p) ? TRUE : FALSE;
3591 case MONO_PATCH_INFO_IMAGE:
3592 ji->data.image = load_image (aot_module, decode_value (p, &p), &error);
3593 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3594 if (!ji->data.image)
3597 case MONO_PATCH_INFO_FIELD:
3598 case MONO_PATCH_INFO_SFLDA:
3600 ji->data.field = decode_field_info (aot_module, p, &p);
3601 if (!ji->data.field)
3604 case MONO_PATCH_INFO_SWITCH:
3605 ji->data.table = (MonoJumpInfoBBTable *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3606 ji->data.table->table_size = decode_value (p, &p);
3607 table = (void **)mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3608 ji->data.table->table = (MonoBasicBlock**)table;
3609 for (i = 0; i < ji->data.table->table_size; i++)
3610 table [i] = (gpointer)(gssize)decode_value (p, &p);
3612 case MONO_PATCH_INFO_R4: {
3615 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3616 val = decode_value (p, &p);
3617 *(float*)ji->data.target = *(float*)&val;
3620 case MONO_PATCH_INFO_R8: {
3624 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3626 val [0] = decode_value (p, &p);
3627 val [1] = decode_value (p, &p);
3628 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3629 *(double*)ji->data.target = *(double*)&v;
3632 case MONO_PATCH_INFO_LDSTR:
3633 image = load_image (aot_module, decode_value (p, &p), &error);
3634 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3637 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3639 case MONO_PATCH_INFO_RVA:
3640 case MONO_PATCH_INFO_DECLSEC:
3641 case MONO_PATCH_INFO_LDTOKEN:
3642 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3644 image = load_image (aot_module, decode_value (p, &p), &error);
3645 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3648 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3650 ji->data.token->has_context = decode_value (p, &p);
3651 if (ji->data.token->has_context) {
3652 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p, &error);
3653 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3658 case MONO_PATCH_INFO_EXC_NAME:
3659 ji->data.klass = decode_klass_ref (aot_module, p, &p, &error);
3660 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3661 if (!ji->data.klass)
3663 ji->data.name = ji->data.klass->name;
3665 case MONO_PATCH_INFO_METHOD_REL:
3666 ji->data.offset = decode_value (p, &p);
3668 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3669 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3670 case MONO_PATCH_INFO_GC_NURSERY_START:
3671 case MONO_PATCH_INFO_GC_NURSERY_BITS:
3673 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3674 ji->data.index = decode_value (p, &p);
3676 case MONO_PATCH_INFO_RGCTX_FETCH:
3677 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
3679 MonoJumpInfoRgctxEntry *entry;
3680 guint32 offset, val;
3683 offset = decode_value (p, &p);
3684 val = decode_value (p, &p);
3686 entry = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3687 p2 = aot_module->blob + offset;
3688 entry->method = decode_resolve_method_ref (aot_module, p2, &p2, &error);
3689 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3690 entry->info_type = (MonoRgctxInfoType)((val >> 1) & 0xff);
3691 entry->data = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3692 entry->data->type = (MonoJumpInfoType)((val >> 9) & 0xff);
3693 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3695 res = decode_patch (aot_module, mp, entry->data, p, &p);
3698 ji->data.rgctx_entry = entry;
3701 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3702 case MONO_PATCH_INFO_AOT_MODULE:
3703 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR:
3705 case MONO_PATCH_INFO_SIGNATURE:
3706 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER:
3707 ji->data.target = decode_signature (aot_module, p, &p);
3709 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3710 MonoJumpInfoGSharedVtCall *info = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3711 info->sig = decode_signature (aot_module, p, &p);
3712 g_assert (info->sig);
3713 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3714 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3716 ji->data.target = info;
3719 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3720 MonoGSharedVtMethodInfo *info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3723 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3724 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3726 info->num_entries = decode_value (p, &p);
3727 info->count_entries = info->num_entries;
3728 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3729 for (i = 0; i < info->num_entries; ++i) {
3730 MonoRuntimeGenericContextInfoTemplate *template_ = &info->entries [i];
3732 template_->info_type = (MonoRgctxInfoType)decode_value (p, &p);
3733 switch (mini_rgctx_info_type_to_patch_info_type (template_->info_type)) {
3734 case MONO_PATCH_INFO_CLASS: {
3735 MonoClass *klass = decode_klass_ref (aot_module, p, &p, &error);
3736 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3739 template_->data = &klass->byval_arg;
3742 case MONO_PATCH_INFO_FIELD:
3743 template_->data = decode_field_info (aot_module, p, &p);
3744 if (!template_->data)
3748 g_assert_not_reached ();
3752 ji->data.target = info;
3755 case MONO_PATCH_INFO_LDSTR_LIT: {
3756 int len = decode_value (p, &p);
3759 s = (char *)mono_mempool_alloc0 (mp, len + 1);
3760 memcpy (s, p, len + 1);
3763 ji->data.target = s;
3766 case MONO_PATCH_INFO_VIRT_METHOD: {
3767 MonoJumpInfoVirtMethod *info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
3769 info->klass = decode_klass_ref (aot_module, p, &p, &error);
3770 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3772 info->method = decode_resolve_method_ref (aot_module, p, &p, &error);
3773 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3775 ji->data.target = info;
3778 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
3779 case MONO_PATCH_INFO_JIT_THREAD_ATTACH:
3781 case MONO_PATCH_INFO_GET_TLS_TRAMP:
3782 case MONO_PATCH_INFO_SET_TLS_TRAMP:
3783 case MONO_PATCH_INFO_AOT_JIT_INFO:
3784 ji->data.index = decode_value (p, &p);
3787 g_warning ("unhandled type %d", ji->type);
3788 g_assert_not_reached ();
3802 * Decode a list of patches identified by the got offsets in GOT_OFFSETS. Return an array of
3803 * MonoJumpInfo structures allocated from MP.
3805 static MonoJumpInfo*
3806 decode_patches (MonoAotModule *amodule, MonoMemPool *mp, int n_patches, gboolean llvm, guint32 *got_offsets)
3808 MonoJumpInfo *patches;
3811 guint32 *got_info_offsets;
3816 got = amodule->llvm_got;
3817 got_info_offsets = (guint32 *)amodule->llvm_got_info_offsets;
3820 got_info_offsets = (guint32 *)amodule->got_info_offsets;
3823 patches = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3824 for (i = 0; i < n_patches; ++i) {
3825 guint8 *p = amodule->blob + mono_aot_get_offset (got_info_offsets, got_offsets [i]);
3828 ji->type = (MonoJumpInfoType)decode_value (p, &p);
3830 /* See load_method () for SFLDA */
3831 if (got && got [got_offsets [i]] && ji->type != MONO_PATCH_INFO_SFLDA) {
3832 /* Already loaded */
3834 res = decode_patch (amodule, mp, ji, p, &p);
3843 static MonoJumpInfo*
3844 load_patch_info (MonoAotModule *amodule, MonoMemPool *mp, int n_patches,
3845 gboolean llvm, guint32 **got_slots,
3846 guint8 *buf, guint8 **endbuf)
3848 MonoJumpInfo *patches;
3854 *got_slots = (guint32 *)g_malloc (sizeof (guint32) * n_patches);
3855 for (pindex = 0; pindex < n_patches; ++pindex) {
3856 (*got_slots)[pindex] = decode_value (p, &p);
3859 patches = decode_patches (amodule, mp, n_patches, llvm, *got_slots);
3861 g_free (*got_slots);
3871 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3874 * Jump addresses cannot be patched by the trampoline code since it
3875 * does not have access to the caller's address. Instead, we collect
3876 * the addresses of the GOT slots pointing to a method, and patch
3877 * them after the method has been compiled.
3879 MonoJitDomainInfo *info = domain_jit_info (domain);
3882 mono_domain_lock (domain);
3883 if (!info->jump_target_got_slot_hash)
3884 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3885 list = (GSList *)g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3886 list = g_slist_prepend (list, got_slot);
3887 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3888 mono_domain_unlock (domain);
3894 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3895 * pointer to the native code of the method, or NULL if not found.
3896 * METHOD might not be set if the caller only has the image/token info.
3899 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index,
3902 MonoJitInfo *jinfo = NULL;
3903 guint8 *code = NULL, *info;
3908 init_amodule_got (amodule);
3910 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE) {
3912 /* The caller cannot handle this */
3913 g_assert_not_reached ();
3917 if (domain != mono_get_root_domain ())
3918 /* Non shared AOT code can't be used in other appdomains */
3921 if (amodule->out_of_date)
3924 if (amodule->info.llvm_get_method) {
3926 * Obtain the method address by calling a generated function in the LLVM module.
3928 gpointer (*get_method) (int) = (gpointer (*)(int))amodule->info.llvm_get_method;
3929 code = (guint8 *)get_method (method_index);
3934 if (amodule->methods [method_index] == GINT_TO_POINTER (-1)) {
3935 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3939 method = mono_get_method_checked (image, token, NULL, NULL, error);
3943 full_name = mono_method_full_name (method, TRUE);
3944 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3949 code = (guint8 *)amodule->methods [method_index];
3952 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3954 if (!amodule->methods_loaded) {
3955 amodule_lock (amodule);
3956 if (!amodule->methods_loaded) {
3959 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3960 mono_memory_barrier ();
3961 amodule->methods_loaded = loaded;
3963 amodule_unlock (amodule);
3966 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3969 if (mono_last_aot_method != -1) {
3970 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3972 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3974 method = mono_get_method_checked (image, token, NULL, NULL, error);
3979 char *name = mono_method_full_name (method, TRUE);
3980 g_print ("LAST AOT METHOD: %s.\n", name);
3983 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3988 if (!(is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) ||
3989 (mono_llvm_only && method && method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED)) {
3990 res = init_method (amodule, method_index, method, NULL, NULL, error);
3995 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3999 method = mono_get_method_checked (image, token, NULL, NULL, error);
4004 full_name = mono_method_full_name (method, TRUE);
4007 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4009 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
4013 amodule_lock (amodule);
4017 InterlockedIncrement (&mono_jit_stats.methods_aot);
4019 if (method && method->wrapper_type)
4020 g_hash_table_insert (amodule->method_to_code, method, code);
4022 /* Commit changes since methods_loaded is accessed outside the lock */
4023 mono_memory_barrier ();
4025 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
4027 amodule_unlock (amodule);
4029 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
4033 method = mono_get_method_checked (amodule->assembly->image, token, NULL, NULL, error);
4037 mono_profiler_method_jit (method);
4038 jinfo = mono_jit_info_table_find (domain, (char*)code);
4040 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4053 find_aot_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, guint32 hash_full)
4056 guint32 table_size, entry_size, hash;
4057 guint32 *table, *entry;
4059 static guint32 n_extra_decodes;
4061 if (!amodule || amodule->out_of_date)
4064 table_size = amodule->extra_method_table [0];
4065 hash = hash_full % table_size;
4066 table = amodule->extra_method_table + 1;
4069 entry = &table [hash * entry_size];
4076 guint32 key = entry [0];
4077 guint32 value = entry [1];
4078 guint32 next = entry [entry_size - 1];
4082 p = amodule->blob + key;
4085 amodule_lock (amodule);
4086 if (!amodule->method_ref_to_method)
4087 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
4088 m = (MonoMethod *)g_hash_table_lookup (amodule->method_ref_to_method, p);
4089 amodule_unlock (amodule);
4091 m = decode_resolve_method_ref_with_target (amodule, method, p, &p, &error);
4092 mono_error_cleanup (&error); /* FIXME don't swallow the error */
4094 * Can't catche runtime invoke wrappers since it would break
4095 * the check in decode_method_ref_with_target ().
4097 if (m && m->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
4098 amodule_lock (amodule);
4099 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
4100 amodule_unlock (amodule);
4108 /* Methods decoded needlessly */
4110 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
4115 entry = &table [next * entry_size];
4124 add_module_cb (gpointer key, gpointer value, gpointer user_data)
4126 g_ptr_array_add ((GPtrArray*)user_data, value);
4132 * Try finding METHOD in the extra_method table in all AOT images.
4133 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
4134 * module where the method was found.
4137 find_aot_method (MonoMethod *method, MonoAotModule **out_amodule)
4142 guint32 hash = mono_aot_method_hash (method);
4144 /* Try the method's module first */
4145 *out_amodule = (MonoAotModule *)method->klass->image->aot_module;
4146 index = find_aot_method_in_amodule ((MonoAotModule *)method->klass->image->aot_module, method, hash);
4147 if (index != 0xffffff)
4151 * Try all other modules.
4152 * This is needed because generic instances klass->image points to the image
4153 * containing the generic definition, but the native code is generated to the
4154 * AOT image which contains the reference.
4157 /* Make a copy to avoid doing the search inside the aot lock */
4158 modules = g_ptr_array_new ();
4160 g_hash_table_foreach (aot_modules, add_module_cb, modules);
4164 for (i = 0; i < modules->len; ++i) {
4165 MonoAotModule *amodule = (MonoAotModule *)g_ptr_array_index (modules, i);
4167 if (amodule != method->klass->image->aot_module)
4168 index = find_aot_method_in_amodule (amodule, method, hash);
4169 if (index != 0xffffff) {
4170 *out_amodule = amodule;
4175 g_ptr_array_free (modules, TRUE);
4181 mono_aot_find_method_index (MonoMethod *method)
4183 MonoAotModule *out_amodule;
4184 return find_aot_method (method, &out_amodule);
4188 init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context, MonoError *error)
4190 MonoDomain *domain = mono_domain_get ();
4192 MonoClass *klass_to_run_ctor = NULL;
4193 gboolean from_plt = method == NULL;
4194 int pindex, n_patches;
4196 MonoJitInfo *jinfo = NULL;
4197 guint8 *code, *info;
4201 code = (guint8 *)amodule->methods [method_index];
4202 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
4206 //does the method's class has a cctor?
4207 if (decode_value (p, &p) == 1)
4208 klass_to_run_ctor = decode_klass_ref (amodule, p, &p, error);
4212 //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
4214 klass_to_run_ctor = method->klass;
4216 n_patches = decode_value (p, &p);
4219 MonoJumpInfo *patches;
4224 mp = mono_mempool_new ();
4226 if ((gpointer)code >= amodule->info.jit_code_start && (gpointer)code <= amodule->info.jit_code_end) {
4231 got = amodule->llvm_got;
4235 patches = load_patch_info (amodule, mp, n_patches, llvm, &got_slots, p, &p);
4236 if (patches == NULL) {
4237 mono_mempool_destroy (mp);
4241 for (pindex = 0; pindex < n_patches; ++pindex) {
4242 MonoJumpInfo *ji = &patches [pindex];
4246 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
4247 * been initialized by load_method () for a static cctor before the cctor has
4248 * finished executing (#23242).
4250 if (!got [got_slots [pindex]] || ji->type == MONO_PATCH_INFO_SFLDA) {
4251 /* In llvm-only made, we might encounter shared methods */
4252 if (mono_llvm_only && ji->type == MONO_PATCH_INFO_METHOD && mono_method_check_context_used (ji->data.method)) {
4254 ji->data.method = mono_class_inflate_generic_method_checked (ji->data.method, context, error);
4255 if (!mono_error_ok (error)) {
4257 mono_mempool_destroy (mp);
4261 /* This cannot be resolved in mono_resolve_patch_target () */
4262 if (ji->type == MONO_PATCH_INFO_AOT_JIT_INFO) {
4263 // FIXME: Lookup using the index
4264 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4265 ji->type = MONO_PATCH_INFO_ABS;
4266 ji->data.target = jinfo;
4268 addr = mono_resolve_patch_target (method, domain, code, ji, TRUE, error);
4269 if (!mono_error_ok (error)) {
4271 mono_mempool_destroy (mp);
4274 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4275 addr = mono_create_ftnptr (domain, addr);
4276 mono_memory_barrier ();
4277 got [got_slots [pindex]] = addr;
4278 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
4279 register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
4281 ji->type = MONO_PATCH_INFO_NONE;
4286 mono_mempool_destroy (mp);
4289 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
4290 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4292 gboolean inited_ok = TRUE;
4294 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, init_class), error);
4295 else if (from_plt && klass_to_run_ctor && !mono_class_is_gtd (klass_to_run_ctor))
4296 inited_ok = mono_runtime_class_init_full (mono_class_vtable (domain, klass_to_run_ctor), error);
4310 init_llvmonly_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context)
4315 res = init_method (amodule, method_index, method, init_class, context, &error);
4316 if (!is_ok (&error)) {
4317 MonoException *ex = mono_error_convert_to_exception (&error);
4318 /* Its okay to raise in llvmonly mode */
4320 mono_llvm_throw_exception ((MonoObject*)ex);
4325 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
4327 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4329 init_llvmonly_method (amodule, method_index, NULL, NULL, NULL);
4333 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this_obj)
4335 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4337 MonoGenericContext *context;
4341 g_assert (this_obj);
4342 klass = this_obj->vtable->klass;
4344 amodule_lock (amodule);
4345 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4346 amodule_unlock (amodule);
4349 context = mono_method_get_context (method);
4352 init_llvmonly_method (amodule, method_index, NULL, klass, context);
4356 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
4358 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4359 MonoGenericContext context = { NULL, NULL };
4360 MonoClass *klass = rgctx->class_vtable->klass;
4362 if (mono_class_is_ginst (klass))
4363 context.class_inst = mono_class_get_generic_class (klass)->context.class_inst;
4364 else if (mono_class_is_gtd (klass))
4365 context.class_inst = mono_class_get_generic_container (klass)->context.class_inst;
4366 context.method_inst = rgctx->method_inst;
4368 init_llvmonly_method (amodule, method_index, NULL, rgctx->class_vtable->klass, &context);
4372 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
4374 MonoAotModule *amodule = (MonoAotModule *)aot_module;
4376 MonoGenericContext *context;
4379 klass = vtable->klass;
4381 amodule_lock (amodule);
4382 method = (MonoMethod *)g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
4383 amodule_unlock (amodule);
4386 context = mono_method_get_context (method);
4389 init_llvmonly_method (amodule, method_index, NULL, klass, context);
4393 * mono_aot_get_method_checked:
4395 * Return a pointer to the AOTed native code for METHOD if it can be found,
4397 * On platforms with function pointers, this doesn't return a function pointer.
4400 mono_aot_get_method_checked (MonoDomain *domain, MonoMethod *method, MonoError *error)
4402 MonoClass *klass = method->klass;
4403 MonoMethod *orig_method = method;
4404 guint32 method_index;
4405 MonoAotModule *amodule = (MonoAotModule *)klass->image->aot_module;
4407 gboolean cache_result = FALSE;
4408 MonoError inner_error;
4412 if (domain != mono_get_root_domain ())
4413 /* Non shared AOT code can't be used in other appdomains */
4416 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
4417 /* This cannot be AOTed during startup, so do it now */
4418 if (!mscorlib_aot_loaded) {
4419 mscorlib_aot_loaded = TRUE;
4420 load_aot_module (klass->image->assembly, NULL);
4421 amodule = (MonoAotModule *)klass->image->aot_module;
4428 if (amodule->out_of_date)
4431 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4432 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4433 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4434 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
4438 * Use the original method instead of its invoke-with-check wrapper.
4439 * This is not a problem when using full-aot, since it doesn't support
4442 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4443 return mono_aot_get_method_checked (domain, mono_marshal_method_from_wrapper (method), error);
4445 g_assert (klass->inited);
4447 /* Find method index */
4448 method_index = 0xffffff;
4449 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)) {
4450 MonoMethod *orig_method = method;
4452 * For generic methods, we store the fully shared instance in place of the
4455 method = mono_method_get_declaring_generic_method (method);
4456 method_index = mono_metadata_token_index (method->token) - 1;
4458 if (mono_llvm_only) {
4459 /* Needed by mono_aot_init_gshared_method_this () */
4460 /* orig_method is a random instance but it is enough to make init_method () work */
4461 amodule_lock (amodule);
4462 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), orig_method);
4463 amodule_unlock (amodule);
4465 } else if (method->is_inflated || !method->token) {
4466 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4467 amodule_lock (amodule);
4468 code = (guint8 *)g_hash_table_lookup (amodule->method_to_code, method);
4469 amodule_unlock (amodule);
4473 cache_result = TRUE;
4474 method_index = find_aot_method (method, &amodule);
4476 * Special case the ICollection<T> wrappers for arrays, as they cannot
4477 * be statically enumerated, and each wrapper ends up calling the same
4480 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
4481 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4483 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4484 mono_error_cleanup (&inner_error);
4490 * Special case Array.GetGenericValueImpl which is a generic icall.
4491 * Generic sharing currently can't handle it, but the icall returns data using
4492 * an out parameter, so the managed-to-native wrappers can share the same code.
4494 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
4496 MonoGenericContext ctx;
4497 MonoType *args [16];
4499 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
4500 /* Avoid recursion */
4503 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
4506 memset (&ctx, 0, sizeof (ctx));
4507 args [0] = &mono_defaults.object_class->byval_arg;
4508 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4510 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, error), TRUE, TRUE);
4512 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error)); /* FIXME don't swallow the error */
4515 * Get the code for the <object> instantiation which should be emitted into
4516 * the mscorlib aot image by the AOT compiler.
4518 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4519 mono_error_cleanup (&inner_error);
4524 /* Same for CompareExchange<T> and Exchange<T> */
4525 /* Same for Volatile.Read<T>/Write<T> */
4526 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
4527 ((!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]))) ||
4528 (!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)))) ||
4529 (!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])))))) {
4531 MonoGenericContext ctx;
4532 MonoType *args [16];
4533 gpointer iter = NULL;
4535 while ((m = mono_class_get_methods (method->klass, &iter))) {
4536 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
4541 memset (&ctx, 0, sizeof (ctx));
4542 args [0] = &mono_defaults.object_class->byval_arg;
4543 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4545 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, error), TRUE, TRUE);
4547 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error)); /* FIXME don't swallow the error */
4549 /* Avoid recursion */
4554 * Get the code for the <object> instantiation which should be emitted into
4555 * the mscorlib aot image by the AOT compiler.
4557 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4558 mono_error_cleanup (&inner_error);
4563 /* For ARRAY_ACCESSOR wrappers with reference types, use the <object> instantiation saved in corlib */
4564 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4565 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4567 if (info->subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
4568 MonoMethod *array_method = info->d.array_accessor.method;
4569 if (MONO_TYPE_IS_REFERENCE (&array_method->klass->element_class->byval_arg)) {
4572 if (!strcmp (array_method->name, "Set"))
4573 rank = mono_method_signature (array_method)->param_count - 1;
4574 else if (!strcmp (array_method->name, "Get") || !strcmp (array_method->name, "Address"))
4575 rank = mono_method_signature (array_method)->param_count;
4577 g_assert_not_reached ();
4578 MonoClass *obj_array_class = mono_array_class_get (mono_defaults.object_class, rank);
4579 MonoMethod *m = mono_class_get_method_from_name (obj_array_class, array_method->name, mono_method_signature (array_method)->param_count);
4582 m = mono_marshal_get_array_accessor_wrapper (m);
4584 code = (guint8 *)mono_aot_get_method_checked (domain, m, &inner_error);
4585 mono_error_cleanup (&inner_error);
4593 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
4594 /* Partial sharing */
4597 shared = mini_get_shared_method (method);
4598 method_index = find_aot_method (shared, &amodule);
4599 if (method_index != 0xffffff)
4603 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4606 /* Use the all-vt shared method since this is what was AOTed */
4607 shared = mini_get_shared_method_full (method, TRUE, TRUE);
4608 method_index = find_aot_method (shared, &amodule);
4609 if (method_index != 0xffffff)
4610 method = mini_get_shared_method_full (method, TRUE, FALSE);
4613 if (method_index == 0xffffff) {
4614 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
4617 full_name = mono_method_full_name (method, TRUE);
4618 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
4624 if (method_index == 0xffffff)
4627 /* Needed by find_jit_info */
4628 amodule_lock (amodule);
4629 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
4630 amodule_unlock (amodule);
4633 method_index = mono_metadata_token_index (method->token) - 1;
4636 code = (guint8 *)load_method (domain, amodule, klass->image, method, method->token, method_index, error);
4639 if (code && cache_result) {
4640 amodule_lock (amodule);
4641 g_hash_table_insert (amodule->method_to_code, orig_method, code);
4642 amodule_unlock (amodule);
4648 * mono_aot_get_method:
4650 * Return a pointer to the AOTed native code for METHOD if it can be found,
4652 * On platforms with function pointers, this doesn't return a function pointer.
4655 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
4659 gpointer res = mono_aot_get_method_checked (domain, method, &error);
4660 /* This is external only, so its ok to raise here */
4661 mono_error_raise_exception (&error); /* OK to throw, external only without a good alternative */
4666 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4670 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token, MonoError *error)
4672 MonoAotModule *aot_module = (MonoAotModule *)image->aot_module;
4681 method_index = mono_metadata_token_index (token) - 1;
4683 res = load_method (domain, aot_module, image, NULL, token, method_index, error);
4690 } IsGotEntryUserData;
4693 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4695 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4696 MonoAotModule *aot_module = (MonoAotModule*)value;
4698 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4703 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4705 IsGotEntryUserData user_data;
4710 user_data.addr = addr;
4711 user_data.res = FALSE;
4713 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4716 return user_data.res;
4721 MonoAotModule *module;
4722 } FindAotModuleUserData;
4725 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4727 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4728 MonoAotModule *aot_module = (MonoAotModule*)value;
4730 if (amodule_contains_code_addr (aot_module, data->addr))
4731 data->module = aot_module;
4734 static inline MonoAotModule*
4735 find_aot_module (guint8 *code)
4737 FindAotModuleUserData user_data;
4742 /* Reading these need no locking */
4743 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4746 user_data.addr = code;
4747 user_data.module = NULL;
4750 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4753 return user_data.module;
4757 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4759 MonoAotModule *amodule;
4762 * Since AOT code is only used in the root domain,
4763 * mono_domain_get () != mono_get_root_domain () means the calling method
4764 * is AppDomain:InvokeInDomain, so this is the same check as in
4765 * mono_method_same_domain () but without loading the metadata for the method.
4767 if (mono_domain_get () == mono_get_root_domain ()) {
4769 amodule = find_aot_module (code);
4773 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4778 * mono_aot_plt_resolve:
4780 * This function is called by the entries in the PLT to resolve the actual method that
4781 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4782 * Returns NULL if the something cannot be loaded.
4785 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
4787 #ifdef MONO_ARCH_AOT_SUPPORTED
4788 guint8 *p, *target, *plt_entry;
4790 MonoAotModule *module = (MonoAotModule*)aot_module;
4791 gboolean res, no_ftnptr = FALSE;
4793 gboolean using_gsharedvt = FALSE;
4797 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4799 p = &module->blob [plt_info_offset];
4801 ji.type = (MonoJumpInfoType)decode_value (p, &p);
4803 mp = mono_mempool_new ();
4804 res = decode_patch (module, mp, &ji, p, &p);
4807 mono_mempool_destroy (mp);
4811 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4812 using_gsharedvt = TRUE;
4816 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4817 * it would create a trampoline, and we don't need that.
4818 * We could do this only if the method does not need the special handling
4819 * in mono_magic_trampoline ().
4821 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) &&
4822 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4823 target = (guint8 *)mono_jit_compile_method (ji.data.method, error);
4824 if (!mono_error_ok (error)) {
4825 mono_mempool_destroy (mp);
4830 target = (guint8 *)mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE, error);
4831 if (!mono_error_ok (error)) {
4832 mono_mempool_destroy (mp);
4838 * The trampoline expects us to return a function descriptor on platforms which use
4839 * it, but resolve_patch_target returns a direct function pointer for some type of
4840 * patches, so have to translate between the two.
4841 * FIXME: Clean this up, but how ?
4843 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) {
4844 /* These should already have a function descriptor */
4845 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4846 /* Our function descriptors have a 0 environment, gcc created ones don't */
4847 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4848 g_assert (((gpointer*)target) [2] == 0);
4851 } else if (!no_ftnptr) {
4852 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4853 g_assert (((gpointer*)target) [2] != 0);
4855 target = (guint8 *)mono_create_ftnptr (mono_domain_get (), target);
4858 mono_mempool_destroy (mp);
4860 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4861 plt_entry = mono_aot_get_plt_entry (code);
4862 g_assert (plt_entry);
4863 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4867 g_assert_not_reached ();
4875 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4876 * method in the module is loaded to avoid committing memory by writing to it.
4877 * LOCKING: Assumes the AMODULE lock is held.
4880 init_plt (MonoAotModule *amodule)
4885 if (amodule->plt_inited)
4888 if (amodule->info.plt_size <= 1) {
4889 amodule->plt_inited = TRUE;
4893 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4896 * Initialize the PLT entries in the GOT to point to the default targets.
4899 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4900 for (i = 1; i < amodule->info.plt_size; ++i)
4901 /* All the default entries point to the AOT trampoline */
4902 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4904 amodule->plt_inited = TRUE;
4908 * mono_aot_get_plt_entry:
4910 * Return the address of the PLT entry called by the code at CODE if exists.
4913 mono_aot_get_plt_entry (guint8 *code)
4915 MonoAotModule *amodule = find_aot_module (code);
4916 guint8 *target = NULL;
4922 if (is_thumb_code (amodule, code - 4))
4923 return mono_arm_get_thumb_plt_entry (code);
4926 #ifdef MONO_ARCH_AOT_SUPPORTED
4927 target = mono_arch_get_call_target (code);
4929 g_assert_not_reached ();
4933 while (target != NULL) {
4934 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4937 // Add 4 since mono_arch_get_call_target assumes we're passing
4938 // the instruction after the actual branch instruction.
4939 target = mono_arch_get_call_target (target + 4);
4944 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4952 * mono_aot_get_plt_info_offset:
4954 * Return the PLT info offset belonging to the plt entry called by CODE.
4957 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4959 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4961 g_assert (plt_entry);
4963 /* The offset is embedded inside the code after the plt entry */
4964 #ifdef MONO_ARCH_AOT_SUPPORTED
4965 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4967 g_assert_not_reached ();
4973 mono_create_ftnptr_malloc (guint8 *code)
4975 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4976 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4978 ftnptr->code = code;
4989 * mono_aot_register_jit_icall:
4991 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4992 * be called from mono_arch_init () during startup.
4995 mono_aot_register_jit_icall (const char *name, gpointer addr)
4997 /* No need for locking */
4998 if (!aot_jit_icall_hash)
4999 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
5000 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
5004 * load_function_full:
5006 * Load the function named NAME from the aot image.
5009 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
5013 int n_patches, pindex;
5016 guint32 info_offset;
5020 symbol = g_strdup_printf ("%s", name);
5021 find_amodule_symbol (amodule, symbol, (gpointer *)&code);
5024 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
5026 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
5030 symbol = g_strdup_printf ("%s_p", name);
5031 find_amodule_symbol (amodule, symbol, (gpointer *)&p);
5034 /* Nothing to patch */
5037 info_offset = *(guint32*)p;
5039 MonoTrampInfo *tinfo;
5040 guint32 code_size, uw_info_len, uw_offset;
5042 /* Construct a MonoTrampInfo from the data in the AOT image */
5044 p += sizeof (guint32);
5045 code_size = *(guint32*)p;
5046 p += sizeof (guint32);
5047 uw_offset = *(guint32*)p;
5048 uw_info = amodule->unwind_info + uw_offset;
5049 uw_info_len = decode_value (uw_info, &uw_info);
5051 tinfo = g_new0 (MonoTrampInfo, 1);
5052 tinfo->code = (guint8 *)code;
5053 tinfo->code_size = code_size;
5054 tinfo->uw_info_len = uw_info_len;
5056 tinfo->uw_info = uw_info;
5061 p = amodule->blob + info_offset;
5063 /* Similar to mono_aot_load_method () */
5065 n_patches = decode_value (p, &p);
5068 MonoJumpInfo *patches;
5071 mp = mono_mempool_new ();
5073 patches = load_patch_info (amodule, mp, n_patches, FALSE, &got_slots, p, &p);
5076 for (pindex = 0; pindex < n_patches; ++pindex) {
5077 MonoJumpInfo *ji = &patches [pindex];
5081 if (amodule->got [got_slots [pindex]])
5085 * When this code is executed, the runtime may not be initalized yet, so
5086 * resolve the patch info by hand.
5088 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
5089 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
5090 target = mono_get_lmf_addr;
5091 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint_noraise")) {
5092 target = mono_thread_force_interruption_checkpoint_noraise;
5093 } else if (!strcmp (ji->data.name, "mono_interruption_checkpoint_from_trampoline")) {
5094 target = mono_interruption_checkpoint_from_trampoline;
5095 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
5096 target = mono_exception_from_token;
5097 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
5098 target = mono_get_throw_exception ();
5099 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
5100 MonoTrampolineType tramp_type2 = (MonoTrampolineType)atoi (ji->data.name + strlen ("trampoline_func_"));
5101 target = (gpointer)mono_get_trampoline_func (tramp_type2);
5102 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
5103 /* atoll is needed because the the offset is unsigned */
5107 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
5108 g_assert (res == 1);
5109 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5110 target = mono_create_ftnptr_malloc ((guint8 *)target);
5111 } else if (!strcmp (ji->data.name, "debugger_agent_single_step_from_context")) {
5112 target = debugger_agent_single_step_from_context;
5113 } else if (!strcmp (ji->data.name, "debugger_agent_breakpoint_from_context")) {
5114 target = debugger_agent_breakpoint_from_context;
5115 } else if (!strcmp (ji->data.name, "throw_exception_addr")) {
5116 target = mono_get_throw_exception_addr ();
5117 } else if (strstr (ji->data.name, "generic_trampoline_")) {
5118 target = mono_aot_get_trampoline (ji->data.name);
5119 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
5120 /* Registered by mono_arch_init () */
5121 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
5123 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
5124 g_assert_not_reached ();
5128 /* Hopefully the code doesn't have patches which need method or
5131 target = mono_resolve_patch_target (NULL, NULL, (guint8 *)code, ji, FALSE, &error);
5132 mono_error_assert_ok (&error);
5136 amodule->got [got_slots [pindex]] = target;
5141 mono_mempool_destroy (mp);
5148 load_function (MonoAotModule *amodule, const char *name)
5150 return load_function_full (amodule, name, NULL);
5153 static MonoAotModule*
5154 get_mscorlib_aot_module (void)
5157 MonoAotModule *amodule;
5159 image = mono_defaults.corlib;
5161 amodule = (MonoAotModule *)image->aot_module;
5163 amodule = mscorlib_aot_module;
5169 no_trampolines (void)
5171 g_assert_not_reached ();
5175 * Return the trampoline identified by NAME from the mscorlib AOT file.
5176 * On ppc64, this returns a function descriptor.
5179 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5181 MonoAotModule *amodule = get_mscorlib_aot_module ();
5183 if (mono_llvm_only) {
5185 return no_trampolines;
5188 return mono_create_ftnptr_malloc ((guint8 *)load_function_full (amodule, name, out_tinfo));
5192 mono_aot_get_trampoline (const char *name)
5194 MonoTrampInfo *out_tinfo;
5197 code = mono_aot_get_trampoline_full (name, &out_tinfo);
5198 mono_aot_tramp_info_register (out_tinfo, NULL);
5204 read_unwind_info (MonoAotModule *amodule, MonoTrampInfo *info, const char *symbol_name)
5206 gpointer symbol_addr;
5207 guint32 uw_offset, uw_info_len;
5210 find_amodule_symbol (amodule, symbol_name, &symbol_addr);
5215 uw_offset = *(guint32*)symbol_addr;
5216 uw_info = amodule->unwind_info + uw_offset;
5217 uw_info_len = decode_value (uw_info, &uw_info);
5219 info->uw_info_len = uw_info_len;
5221 info->uw_info = uw_info;
5223 info->uw_info = NULL;
5225 /* If successful return the address of the following data */
5226 return (guint32*)symbol_addr + 1;
5230 #include <mach/mach.h>
5232 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
5235 read_page_trampoline_uwinfo (MonoTrampInfo *info, int tramp_type, gboolean is_generic)
5237 char symbol_name [128];
5239 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5240 sprintf (symbol_name, "specific_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5241 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5242 sprintf (symbol_name, "rgctx_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5243 else if (tramp_type == MONO_AOT_TRAMP_IMT)
5244 sprintf (symbol_name, "imt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5245 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5246 sprintf (symbol_name, "gsharedvt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
5248 g_assert_not_reached ();
5250 read_unwind_info (mono_defaults.corlib->aot_module, info, symbol_name);
5253 static unsigned char*
5254 get_new_trampoline_from_page (int tramp_type)
5256 MonoAotModule *amodule;
5258 TrampolinePage *page;
5261 vm_address_t addr, taddr;
5263 vm_prot_t prot, max_prot;
5264 int psize, specific_trampoline_size;
5265 unsigned char *code;
5267 specific_trampoline_size = 2 * sizeof (gpointer);
5269 mono_aot_page_lock ();
5270 page = trampoline_pages [tramp_type];
5271 if (page && page->trampolines < page->trampolines_end) {
5272 code = page->trampolines;
5273 page->trampolines += specific_trampoline_size;
5274 mono_aot_page_unlock ();
5277 mono_aot_page_unlock ();
5278 /* the trampoline template page is in the mscorlib module */
5279 image = mono_defaults.corlib;
5282 psize = MONO_AOT_TRAMP_PAGE_SIZE;
5284 amodule = image->aot_module;
5287 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
5288 tpage = load_function (amodule, "specific_trampolines_page");
5289 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
5290 tpage = load_function (amodule, "rgctx_trampolines_page");
5291 else if (tramp_type == MONO_AOT_TRAMP_IMT)
5292 tpage = load_function (amodule, "imt_trampolines_page");
5293 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
5294 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
5296 g_error ("Incorrect tramp type for trampolines page");
5298 /*g_warning ("loaded trampolines page at %x", tpage);*/
5300 /* avoid the unlikely case of looping forever */
5303 while (page == NULL && count-- > 0) {
5304 MonoTrampInfo *gen_info, *sp_info;
5307 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
5308 * while the second will contain the trampolines.
5311 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
5312 } while (ret == KERN_ABORTED);
5313 if (ret != KERN_SUCCESS) {
5314 g_error ("Cannot allocate memory for trampolines: %d", ret);
5317 /*g_warning ("allocated trampoline double page at %x", addr);*/
5318 /* replace the second page with a remapped trampoline page */
5319 taddr = addr + psize;
5320 vm_deallocate (mach_task_self (), taddr, psize);
5321 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
5322 if (ret != KERN_SUCCESS) {
5323 /* someone else got the page, try again */
5324 vm_deallocate (mach_task_self (), addr, psize);
5327 /*g_warning ("remapped trampoline page at %x", taddr);*/
5329 mono_aot_page_lock ();
5330 page = trampoline_pages [tramp_type];
5331 /* some other thread already allocated, so use that to avoid wasting memory */
5332 if (page && page->trampolines < page->trampolines_end) {
5333 code = page->trampolines;
5334 page->trampolines += specific_trampoline_size;
5335 mono_aot_page_unlock ();
5336 vm_deallocate (mach_task_self (), addr, psize);
5337 vm_deallocate (mach_task_self (), taddr, psize);
5340 page = (TrampolinePage*)addr;
5341 page->next = trampoline_pages [tramp_type];
5342 trampoline_pages [tramp_type] = page;
5343 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
5344 page->trampolines_end = (void*)(taddr + psize - 64);
5345 code = page->trampolines;
5346 page->trampolines += specific_trampoline_size;
5347 mono_aot_page_unlock ();
5349 /* Register the generic part at the beggining of the trampoline page */
5350 gen_info = mono_tramp_info_create (NULL, (guint8*)taddr, amodule->info.tramp_page_code_offsets [tramp_type], NULL, NULL);
5351 read_page_trampoline_uwinfo (gen_info, tramp_type, TRUE);
5352 mono_aot_tramp_info_register (gen_info, NULL);
5355 * Registering each specific trampoline produces a lot of
5356 * MonoJitInfo structures. Jump trampolines are also registered
5359 if (tramp_type != MONO_AOT_TRAMP_SPECIFIC) {
5360 /* Register the rest of the page as a single trampoline */
5361 sp_info = mono_tramp_info_create (NULL, code, page->trampolines_end - code, NULL, NULL);
5362 read_page_trampoline_uwinfo (sp_info, tramp_type, FALSE);
5363 mono_aot_tramp_info_register (sp_info, NULL);
5367 g_error ("Cannot allocate more trampoline pages: %d", ret);
5372 static unsigned char*
5373 get_new_trampoline_from_page (int tramp_type)
5375 g_error ("Page trampolines not supported.");
5382 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
5387 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
5389 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5392 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5398 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
5403 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
5405 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5408 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5414 get_new_imt_trampoline_from_page (gpointer arg)
5419 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT);
5421 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5423 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
5429 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
5434 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
5436 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5439 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5443 /* Return a given kind of trampoline */
5444 /* FIXME set unwind info for these trampolines */
5446 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
5449 MonoAotModule *amodule = get_mscorlib_aot_module ();
5450 int index, tramp_size;
5452 /* Currently, we keep all trampolines in the mscorlib AOT image */
5453 image = mono_defaults.corlib;
5455 *out_amodule = amodule;
5460 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5462 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5464 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
5465 g_error ("Ran out of trampolines of type %d in '%s' (limit %d)%s\n",
5466 tramp_type, image ? image->name : "mscorlib", amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
5468 index = amodule->trampoline_index [tramp_type] ++;
5472 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
5474 tramp_size = amodule->info.trampoline_size [tramp_type];
5477 *out_tramp_size = tramp_size;
5479 return amodule->trampolines [tramp_type] + (index * tramp_size);
5483 no_specific_trampoline (void)
5485 g_assert_not_reached ();
5489 * Return a specific trampoline from the AOT file.
5492 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5494 MonoAotModule *amodule;
5495 guint32 got_offset, tramp_size;
5496 guint8 *code, *tramp;
5497 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
5498 static gboolean inited;
5499 static guint32 num_trampolines;
5501 if (mono_llvm_only) {
5503 return no_specific_trampoline;
5510 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
5519 if (!generic_trampolines [tramp_type]) {
5522 symbol = mono_get_generic_trampoline_name (tramp_type);
5523 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
5527 tramp = (guint8 *)generic_trampolines [tramp_type];
5530 if (USE_PAGE_TRAMPOLINES) {
5531 code = (guint8 *)get_new_specific_trampoline_from_page (tramp, arg1);
5534 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
5536 amodule->got [got_offset] = tramp;
5537 amodule->got [got_offset + 1] = arg1;
5541 *code_len = tramp_size;
5547 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5549 MonoAotModule *amodule;
5553 if (USE_PAGE_TRAMPOLINES) {
5554 code = (guint8 *)get_new_rgctx_trampoline_from_page (addr, ctx);
5556 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
5558 amodule->got [got_offset] = ctx;
5559 amodule->got [got_offset + 1] = addr;
5562 /* The caller expects an ftnptr */
5563 return mono_create_ftnptr (mono_domain_get (), code);
5567 mono_aot_get_unbox_trampoline (MonoMethod *method)
5569 guint32 method_index = mono_metadata_token_index (method->token) - 1;
5570 MonoAotModule *amodule;
5572 guint32 *ut, *ut_end, *entry;
5573 int low, high, entry_index = 0;
5574 gpointer symbol_addr;
5575 MonoTrampInfo *tinfo;
5577 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
5578 method_index = find_aot_method (method, &amodule);
5579 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
5580 MonoMethod *shared = mini_get_shared_method_full (method, FALSE, FALSE);
5581 method_index = find_aot_method (shared, &amodule);
5583 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, TRUE)) {
5584 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
5585 method_index = find_aot_method (shared, &amodule);
5587 g_assert (method_index != 0xffffff);
5589 amodule = (MonoAotModule *)method->klass->image->aot_module;
5593 if (amodule->info.llvm_get_unbox_tramp) {
5594 gpointer (*get_tramp) (int) = (gpointer (*)(int))amodule->info.llvm_get_unbox_tramp;
5595 code = get_tramp (method_index);
5601 ut = amodule->unbox_trampolines;
5602 ut_end = amodule->unbox_trampolines_end;
5604 /* Do a binary search in the sorted table */
5607 high = (ut_end - ut);
5608 while (low < high) {
5609 entry_index = (low + high) / 2;
5610 entry = &ut [entry_index];
5611 if (entry [0] < method_index) {
5612 low = entry_index + 1;
5613 } else if (entry [0] > method_index) {
5620 code = get_call_table_entry (amodule->unbox_trampoline_addresses, entry_index);
5623 tinfo = mono_tramp_info_create (NULL, (guint8 *)code, 0, NULL, NULL);
5625 symbol_addr = read_unwind_info (amodule, tinfo, "unbox_trampoline_p");
5627 mono_tramp_info_free (tinfo);
5631 tinfo->code_size = *(guint32*)symbol_addr;
5632 mono_aot_tramp_info_register (tinfo, NULL);
5634 /* The caller expects an ftnptr */
5635 return mono_create_ftnptr (mono_domain_get (), code);
5639 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5643 MonoAotModule *amodule = (MonoAotModule *)mono_defaults.corlib->aot_module;
5644 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
5645 static int count = 0;
5648 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
5649 static gpointer addr;
5653 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5656 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
5657 info = (void **)mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
5658 info [0] = GUINT_TO_POINTER (slot);
5659 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5660 code = mono_aot_get_static_rgctx_trampoline (info, addr);
5661 return mono_create_ftnptr (mono_domain_get (), code);
5664 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
5665 code = load_function ((MonoAotModule *)mono_defaults.corlib->aot_module, symbol);
5667 /* The caller expects an ftnptr */
5668 return mono_create_ftnptr (mono_domain_get (), code);
5672 no_imt_trampoline (void)
5674 g_assert_not_reached ();
5678 mono_aot_get_imt_trampoline (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5683 int i, index, real_count;
5684 MonoAotModule *amodule;
5687 return no_imt_trampoline;
5690 for (i = 0; i < count; ++i) {
5691 MonoIMTCheckItem *item = imt_entries [i];
5693 if (item->is_equals)
5697 /* Save the entries into an array */
5698 buf = (void **)mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
5700 for (i = 0; i < count; ++i) {
5701 MonoIMTCheckItem *item = imt_entries [i];
5703 if (!item->is_equals)
5706 g_assert (item->key);
5708 buf [(index * 2)] = item->key;
5709 if (item->has_target_code) {
5710 gpointer *p = (gpointer *)mono_domain_alloc (domain, sizeof (gpointer));
5711 *p = item->value.target_code;
5712 buf [(index * 2) + 1] = p;
5714 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
5718 buf [(index * 2)] = NULL;
5719 buf [(index * 2) + 1] = fail_tramp;
5721 if (USE_PAGE_TRAMPOLINES) {
5722 code = get_new_imt_trampoline_from_page (buf);
5724 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT, 1, &amodule, &got_offset, NULL);
5726 amodule->got [got_offset] = buf;
5733 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5735 MonoAotModule *amodule;
5739 if (USE_PAGE_TRAMPOLINES) {
5740 code = (guint8 *)get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
5742 code = (guint8 *)get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
5744 amodule->got [got_offset] = arg;
5745 amodule->got [got_offset + 1] = addr;
5748 /* The caller expects an ftnptr */
5749 return mono_create_ftnptr (mono_domain_get (), code);
5753 * mono_aot_set_make_unreadable:
5755 * Set whenever to make all mmaped memory unreadable. In conjuction with a
5756 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
5759 mono_aot_set_make_unreadable (gboolean unreadable)
5763 make_unreadable = unreadable;
5765 if (make_unreadable && !inited) {
5766 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
5771 MonoAotModule *module;
5776 find_map (gpointer key, gpointer value, gpointer user_data)
5778 MonoAotModule *module = (MonoAotModule*)value;
5779 FindMapUserData *data = (FindMapUserData*)user_data;
5782 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
5783 data->module = module;
5786 static MonoAotModule*
5787 find_module_for_addr (void *ptr)
5789 FindMapUserData data;
5791 if (!make_unreadable)
5795 data.ptr = (guint8*)ptr;
5798 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
5805 * mono_aot_is_pagefault:
5807 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
5808 * within memory allocated by this module.
5811 mono_aot_is_pagefault (void *ptr)
5813 if (!make_unreadable)
5817 * Not signal safe, but SIGSEGV's are synchronous, and
5818 * this is only turned on by a MONO_DEBUG option.
5820 return find_module_for_addr (ptr) != NULL;
5824 * mono_aot_handle_pagefault:
5826 * Handle a pagefault caused by an unreadable page by making it readable again.
5829 mono_aot_handle_pagefault (void *ptr)
5831 #ifndef PLATFORM_WIN32
5832 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5836 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5837 g_assert (res == 0);
5848 mono_aot_init (void)
5853 mono_aot_cleanup (void)
5858 mono_aot_find_method_index (MonoMethod *method)
5860 g_assert_not_reached ();
5865 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
5870 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this)
5875 mono_aot_init_gshared_method_mrgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
5880 mono_aot_init_gshared_method_vtable (gpointer aot_module, guint32 method_index, MonoVTable *vtable)
5885 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5891 mono_aot_get_method_checked (MonoDomain *domain,
5892 MonoMethod *method, MonoError *error)
5899 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5905 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5911 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5917 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5923 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token, MonoError *error)
5930 mono_aot_get_plt_entry (guint8 *code)
5936 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code, MonoError *error)
5942 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5947 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot, MonoError *error)
5955 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5957 g_assert_not_reached ();
5963 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5965 g_assert_not_reached ();
5970 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5972 g_assert_not_reached ();
5977 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
5979 g_assert_not_reached ();
5984 mono_aot_get_trampoline (const char *name)
5986 g_assert_not_reached ();
5991 mono_aot_get_unbox_trampoline (MonoMethod *method)
5993 g_assert_not_reached ();
5998 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
6000 g_assert_not_reached ();
6005 mono_aot_get_imt_trampoline (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
6007 g_assert_not_reached ();
6012 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
6014 g_assert_not_reached ();
6019 mono_aot_set_make_unreadable (gboolean unreadable)
6024 mono_aot_is_pagefault (void *ptr)
6030 mono_aot_handle_pagefault (void *ptr)
6035 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
6037 g_assert_not_reached ();
6042 mono_aot_register_jit_icall (const char *name, gpointer addr)