2 * aot-runtime.c: mono Ahead of Time compiler
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Zoltan Varga (vargaz@gmail.com)
8 * (C) 2002 Ximian, Inc.
9 * Copyright 2003-2011 Novell, Inc.
10 * Copyright 2011 Xamarin, Inc.
14 #include <sys/types.h>
20 #ifdef HAVE_SYS_MMAN_H
29 #ifdef HAVE_EXECINFO_H
36 #ifdef HAVE_SYS_WAIT_H
37 #include <sys/wait.h> /* for WIFEXITED, WEXITSTATUS */
40 #include <mono/metadata/abi-details.h>
41 #include <mono/metadata/tabledefs.h>
42 #include <mono/metadata/class.h>
43 #include <mono/metadata/object.h>
44 #include <mono/metadata/tokentype.h>
45 #include <mono/metadata/appdomain.h>
46 #include <mono/metadata/debug-helpers.h>
47 #include <mono/metadata/assembly.h>
48 #include <mono/metadata/metadata-internals.h>
49 #include <mono/metadata/marshal.h>
50 #include <mono/metadata/gc-internal.h>
51 #include <mono/metadata/threads-types.h>
52 #include <mono/metadata/mono-endian.h>
53 #include <mono/utils/mono-logger-internal.h>
54 #include <mono/utils/mono-mmap.h>
55 #include "mono/utils/mono-compiler.h"
56 #include <mono/utils/mono-counters.h>
57 #include <mono/utils/mono-digest.h>
60 #include "seq-points.h"
62 #include "debugger-agent.h"
67 #define ENABLE_AOT_CACHE
70 /* Number of got entries shared between the JIT and LLVM GOT */
71 #define N_COMMON_GOT_ENTRIES 9
73 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
74 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
75 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
82 typedef struct MonoAotModule {
84 /* Pointer to the Global Offset Table */
87 gpointer shared_got [N_COMMON_GOT_ENTRIES];
88 GHashTable *name_cache;
89 GHashTable *extra_methods;
90 /* Maps methods to their code */
91 GHashTable *method_to_code;
92 /* Maps pointers into the method info to the methods themselves */
93 GHashTable *method_ref_to_method;
94 MonoAssemblyName *image_names;
96 MonoAssembly *assembly;
97 MonoImage **image_table;
98 guint32 image_table_len;
101 gboolean got_initializing;
104 guint8 *jit_code_start;
105 guint8 *jit_code_end;
106 guint8 *llvm_code_start;
107 guint8 *llvm_code_end;
111 /* Maps method indexes to their code */
113 /* Sorted array of method addresses */
114 gpointer *sorted_methods;
115 /* Method indexes for each method in sorted_methods */
116 int *sorted_method_indexes;
117 /* The length of the two tables above */
118 int sorted_methods_len;
119 guint32 *method_info_offsets;
120 guint32 *ex_info_offsets;
121 guint32 *class_info_offsets;
122 guint32 *methods_loaded;
123 guint16 *class_name_table;
124 guint32 *extra_method_table;
125 guint32 *extra_method_info_offsets;
126 guint32 *unbox_trampolines;
127 guint32 *unbox_trampolines_end;
128 guint32 *unbox_trampoline_addresses;
131 /* Points to the mono EH data created by LLVM */
132 guint8 *mono_eh_frame;
134 /* Points to the trampolines */
135 guint8 *trampolines [MONO_AOT_TRAMP_NUM];
136 /* The first unused trampoline of each kind */
137 guint32 trampoline_index [MONO_AOT_TRAMP_NUM];
139 gboolean use_page_trampolines;
141 MonoAotFileInfo info;
146 JitInfoMap *async_jit_info_table;
152 unsigned char *trampolines;
153 unsigned char *trampolines_end;
156 static GHashTable *aot_modules;
157 #define mono_aot_lock() mono_mutex_lock (&aot_mutex)
158 #define mono_aot_unlock() mono_mutex_unlock (&aot_mutex)
159 static mono_mutex_t aot_mutex;
162 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
163 * AOT modules registered by mono_aot_register_module ().
165 static GHashTable *static_aot_modules;
168 * Maps MonoJitInfo* to the aot module they belong to, this can be different
169 * from ji->method->klass->image's aot module for generic instances.
171 static GHashTable *ji_to_amodule;
174 * Whenever to AOT compile loaded assemblies on demand and store them in
177 static gboolean enable_aot_cache = FALSE;
179 static gboolean mscorlib_aot_loaded;
182 static gint32 mono_last_aot_method = -1;
184 static gboolean make_unreadable = FALSE;
185 static guint32 name_table_accesses = 0;
186 static guint32 n_pagefaults = 0;
188 /* Used to speed-up find_aot_module () */
189 static gsize aot_code_low_addr = (gssize)-1;
190 static gsize aot_code_high_addr = 0;
193 static gint32 async_jit_info_size;
195 static GHashTable *aot_jit_icall_hash;
198 #define USE_PAGE_TRAMPOLINES ((MonoAotModule*)mono_defaults.corlib->aot_module)->use_page_trampolines
200 #define USE_PAGE_TRAMPOLINES 0
203 #define mono_aot_page_lock() mono_mutex_lock (&aot_page_mutex)
204 #define mono_aot_page_unlock() mono_mutex_unlock (&aot_page_mutex)
205 static mono_mutex_t aot_page_mutex;
207 static MonoAotModule *mscorlib_aot_module;
210 init_plt (MonoAotModule *info);
213 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end);
216 init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context);
219 amodule_lock (MonoAotModule *amodule)
221 mono_mutex_lock (&amodule->mutex);
225 amodule_unlock (MonoAotModule *amodule)
227 mono_mutex_unlock (&amodule->mutex);
233 * Load one of the images referenced by AMODULE. Returns NULL if the image is not
234 * found, and sets the loader error if SET_ERROR is TRUE.
237 load_image (MonoAotModule *amodule, int index, gboolean set_error)
239 MonoAssembly *assembly;
240 MonoImageOpenStatus status;
242 g_assert (index < amodule->image_table_len);
244 if (amodule->image_table [index])
245 return amodule->image_table [index];
246 if (amodule->out_of_date)
249 assembly = mono_assembly_load (&amodule->image_names [index], amodule->assembly->basedir, &status);
251 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable because dependency %s is not found.\n", amodule->aot_name, amodule->image_names [index].name);
252 amodule->out_of_date = TRUE;
255 char *full_name = mono_stringify_assembly_name (&amodule->image_names [index]);
256 mono_loader_set_error_assembly_load (full_name, FALSE);
262 if (strcmp (assembly->image->guid, amodule->image_guids [index])) {
263 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable (GUID of dependent assembly %s doesn't match (expected '%s', got '%s').\n", amodule->aot_name, amodule->image_names [index].name, amodule->image_guids [index], assembly->image->guid);
264 amodule->out_of_date = TRUE;
268 amodule->image_table [index] = assembly->image;
269 return assembly->image;
273 decode_value (guint8 *ptr, guint8 **rptr)
278 if ((b & 0x80) == 0){
281 } else if ((b & 0x40) == 0){
282 len = ((b & 0x3f) << 8 | ptr [1]);
284 } else if (b != 0xff) {
285 len = ((b & 0x1f) << 24) |
292 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
298 //printf ("DECODE: %d.\n", len);
303 * mono_aot_get_offset:
305 * Decode an offset table emitted by emit_offset_table (), returning the INDEXth
309 mono_aot_get_offset (guint32 *table, int index)
311 int i, group, ngroups, index_entry_size;
312 int start_offset, offset, group_size;
313 guint8 *data_start, *p;
314 guint32 *index32 = NULL;
315 guint16 *index16 = NULL;
317 /* noffsets = table [0]; */
318 group_size = table [1];
320 index_entry_size = table [3];
321 group = index / group_size;
323 if (index_entry_size == 2) {
324 index16 = (guint16*)&table [4];
325 data_start = (guint8*)&index16 [ngroups];
326 p = data_start + index16 [group];
328 index32 = (guint32*)&table [4];
329 data_start = (guint8*)&index32 [ngroups];
330 p = data_start + index32 [group];
333 /* offset will contain the value of offsets [group * group_size] */
334 offset = start_offset = decode_value (p, &p);
335 for (i = group * group_size + 1; i <= index; ++i) {
336 offset += decode_value (p, &p);
339 //printf ("Offset lookup: %d -> %d, start=%d, p=%d\n", index, offset, start_offset, table [3 + group]);
345 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
348 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
351 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
353 static MonoGenericInst*
354 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
357 MonoType **type_argv;
358 MonoGenericInst *inst;
361 type_argc = decode_value (p, &p);
362 type_argv = g_new0 (MonoType*, type_argc);
364 for (i = 0; i < type_argc; ++i) {
365 MonoClass *pclass = decode_klass_ref (module, p, &p);
370 type_argv [i] = &pclass->byval_arg;
373 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
382 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf)
389 argc = decode_value (p, &p);
392 ctx->class_inst = decode_generic_inst (module, p, &p);
393 if (!ctx->class_inst)
397 argc = decode_value (p, &p);
400 ctx->method_inst = decode_generic_inst (module, p, &p);
401 if (!ctx->method_inst)
410 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
414 MonoClass *klass = NULL, *eklass;
415 guint32 token, rank, idx;
419 reftype = decode_value (p, &p);
426 case MONO_AOT_TYPEREF_TYPEDEF_INDEX:
427 idx = decode_value (p, &p);
428 image = load_image (module, 0, TRUE);
431 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, &error);
432 g_assert (mono_error_ok (&error));
434 case MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE:
435 idx = decode_value (p, &p);
436 image = load_image (module, decode_value (p, &p), TRUE);
439 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF + idx, &error);
440 g_assert (mono_error_ok (&error));
442 case MONO_AOT_TYPEREF_TYPESPEC_TOKEN:
443 token = decode_value (p, &p);
444 image = module->assembly->image;
447 klass = mono_class_get_checked (image, token, &error);
448 g_assert (mono_error_ok (&error));
450 case MONO_AOT_TYPEREF_GINST: {
452 MonoGenericContext ctx;
455 gclass = decode_klass_ref (module, p, &p);
458 g_assert (gclass->generic_container);
460 memset (&ctx, 0, sizeof (ctx));
461 ctx.class_inst = decode_generic_inst (module, p, &p);
464 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
465 klass = mono_class_from_mono_type (type);
466 mono_metadata_free_type (type);
469 case MONO_AOT_TYPEREF_VAR: {
471 MonoGenericContainer *container = NULL;
472 int type = decode_value (p, &p);
473 int num = decode_value (p, &p);
474 gboolean has_container = decode_value (p, &p);
475 MonoType *gshared_constraint = NULL;
476 char *par_name = NULL;
479 gboolean is_method = decode_value (p, &p);
482 MonoMethod *method_def;
483 g_assert (type == MONO_TYPE_MVAR);
484 method_def = decode_resolve_method_ref (module, p, &p);
488 container = mono_method_get_generic_container (method_def);
490 MonoClass *class_def;
491 g_assert (type == MONO_TYPE_VAR);
492 class_def = decode_klass_ref (module, p, &p);
496 container = class_def->generic_container;
499 gboolean has_gshared_constraint = decode_value (p, &p);
500 if (has_gshared_constraint) {
503 gshared_constraint = decode_type (module, p, &p);
504 if (!gshared_constraint)
507 len = decode_value (p, &p);
509 par_name = mono_image_alloc (module->assembly->image, len + 1);
510 memcpy (par_name, p, len);
512 par_name [len] = '\0';
517 t = g_new0 (MonoType, 1);
520 t->data.generic_param = mono_generic_container_get_param (container, num);
521 g_assert (gshared_constraint == NULL);
524 MonoGenericParam *par = (MonoGenericParam*)mono_image_alloc0 (module->assembly->image, sizeof (MonoGenericParamFull));
526 par->gshared_constraint = gshared_constraint;
528 par->image = mono_defaults.corlib;
529 t->data.generic_param = par;
531 ((MonoGenericParamFull*)par)->info.name = par_name;
534 // FIXME: Maybe use types directly to avoid
535 // the overhead of creating MonoClass-es
536 klass = mono_class_from_mono_type (t);
541 case MONO_AOT_TYPEREF_ARRAY:
543 rank = decode_value (p, &p);
544 eklass = decode_klass_ref (module, p, &p);
545 klass = mono_array_class_get (eklass, rank);
547 case MONO_AOT_TYPEREF_PTR: {
550 t = decode_type (module, p, &p);
553 klass = mono_class_from_mono_type (t);
557 case MONO_AOT_TYPEREF_BLOB_INDEX: {
558 guint32 offset = decode_value (p, &p);
561 p2 = module->blob + offset;
562 klass = decode_klass_ref (module, p2, &p2);
566 g_assert_not_reached ();
569 //printf ("BLA: %s\n", mono_type_full_name (&klass->byval_arg));
574 static MonoClassField*
575 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
577 MonoClass *klass = decode_klass_ref (module, buf, &buf);
584 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
588 return mono_class_get_field (klass, token);
592 * Parse a MonoType encoded by encode_type () in aot-compiler.c. Return malloc-ed
596 decode_type (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
601 t = g_malloc0 (sizeof (MonoType));
604 if (*p == MONO_TYPE_PINNED) {
607 } else if (*p == MONO_TYPE_BYREF) {
620 case MONO_TYPE_BOOLEAN:
634 case MONO_TYPE_STRING:
635 case MONO_TYPE_OBJECT:
636 case MONO_TYPE_TYPEDBYREF:
638 case MONO_TYPE_VALUETYPE:
639 case MONO_TYPE_CLASS:
640 t->data.klass = decode_klass_ref (module, p, &p);
642 case MONO_TYPE_SZARRAY:
643 t->data.klass = decode_klass_ref (module, p, &p);
649 t->data.type = decode_type (module, p, &p);
651 case MONO_TYPE_GENERICINST: {
653 MonoGenericContext ctx;
657 gclass = decode_klass_ref (module, p, &p);
660 g_assert (gclass->generic_container);
662 memset (&ctx, 0, sizeof (ctx));
663 ctx.class_inst = decode_generic_inst (module, p, &p);
666 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
667 klass = mono_class_from_mono_type (type);
668 t->data.generic_class = klass->generic_class;
671 case MONO_TYPE_ARRAY: {
672 MonoArrayType *array;
675 // FIXME: memory management
676 array = g_new0 (MonoArrayType, 1);
677 array->eklass = decode_klass_ref (module, p, &p);
680 array->rank = decode_value (p, &p);
681 array->numsizes = decode_value (p, &p);
684 array->sizes = g_malloc0 (sizeof (int) * array->numsizes);
685 for (i = 0; i < array->numsizes; ++i)
686 array->sizes [i] = decode_value (p, &p);
688 array->numlobounds = decode_value (p, &p);
689 if (array->numlobounds)
690 array->lobounds = g_malloc0 (sizeof (int) * array->numlobounds);
691 for (i = 0; i < array->numlobounds; ++i)
692 array->lobounds [i] = decode_value (p, &p);
693 t->data.array = array;
697 case MONO_TYPE_MVAR: {
698 MonoClass *klass = decode_klass_ref (module, p, &p);
701 t->data.generic_param = klass->byval_arg.data.generic_param;
705 g_assert_not_reached ();
713 // FIXME: Error handling, memory management
715 static MonoMethodSignature*
716 decode_signature_with_target (MonoAotModule *module, MonoMethodSignature *target, guint8 *buf, guint8 **endbuf)
718 MonoMethodSignature *sig;
720 int i, param_count, call_conv;
722 gboolean hasthis, explicit_this, has_gen_params;
726 has_gen_params = (flags & 0x10) != 0;
727 hasthis = (flags & 0x20) != 0;
728 explicit_this = (flags & 0x40) != 0;
729 call_conv = flags & 0x0F;
732 /* gen_param_count = */ decode_value (p, &p);
733 param_count = decode_value (p, &p);
734 if (target && param_count != target->param_count)
736 sig = g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + param_count * sizeof (MonoType *));
737 sig->param_count = param_count;
738 sig->sentinelpos = -1;
739 sig->hasthis = hasthis;
740 sig->explicit_this = explicit_this;
741 sig->call_convention = call_conv;
742 sig->param_count = param_count;
743 sig->ret = decode_type (module, p, &p);
744 for (i = 0; i < param_count; ++i) {
745 if (*p == MONO_TYPE_SENTINEL) {
746 g_assert (sig->call_convention == MONO_CALL_VARARG);
747 sig->sentinelpos = i;
750 sig->params [i] = decode_type (module, p, &p);
753 if (sig->call_convention == MONO_CALL_VARARG && sig->sentinelpos == -1)
754 sig->sentinelpos = sig->param_count;
761 static MonoMethodSignature*
762 decode_signature (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
764 return decode_signature_with_target (module, NULL, buf, endbuf);
768 sig_matches_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
770 MonoMethodSignature *sig;
774 sig = decode_signature_with_target (module, mono_method_signature (target), p, &p);
775 res = sig && mono_metadata_signature_equal (mono_method_signature (target), sig);
781 /* Stores information returned by decode_method_ref () */
786 gboolean no_aot_trampoline;
790 * decode_method_ref_with_target:
792 * Decode a method reference, storing the image/token into a MethodRef structure.
793 * This avoids loading metadata for the method if the caller does not need it. If the method has
794 * no token, then it is loaded from metadata and ref->method is set to the method instance.
795 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method
796 * couldn't resolve to TARGET, and return FALSE.
797 * There are some kinds of method references which only support a non-null TARGET.
798 * This means that its not possible to decode this into a method, only to check
799 * that the method reference matches a given method. This is normally not a problem
800 * as these wrappers only occur in the extra_methods table, where we already have
801 * a method we want to lookup.
804 decode_method_ref_with_target (MonoAotModule *module, MethodRef *ref, MonoMethod *target, guint8 *buf, guint8 **endbuf)
806 guint32 image_index, value;
807 MonoImage *image = NULL;
810 memset (ref, 0, sizeof (MethodRef));
812 value = decode_value (p, &p);
813 image_index = value >> 24;
815 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
816 ref->no_aot_trampoline = TRUE;
817 value = decode_value (p, &p);
818 image_index = value >> 24;
821 if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
822 if (target && target->wrapper_type)
826 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
827 guint32 wrapper_type;
829 wrapper_type = decode_value (p, &p);
831 if (target && target->wrapper_type != wrapper_type)
835 image = mono_defaults.corlib;
837 switch (wrapper_type) {
838 #ifndef DISABLE_REMOTING
839 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
840 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
844 mono_class_init (m->klass);
848 ref->method = mono_marshal_get_remoting_invoke_with_check (m);
851 case MONO_WRAPPER_PROXY_ISINST: {
852 MonoClass *klass = decode_klass_ref (module, p, &p);
855 ref->method = mono_marshal_get_proxy_cancast (klass);
858 case MONO_WRAPPER_LDFLD:
859 case MONO_WRAPPER_LDFLDA:
860 case MONO_WRAPPER_STFLD:
861 case MONO_WRAPPER_ISINST: {
862 MonoClass *klass = decode_klass_ref (module, p, &p);
865 if (wrapper_type == MONO_WRAPPER_LDFLD)
866 ref->method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
867 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
868 ref->method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
869 else if (wrapper_type == MONO_WRAPPER_STFLD)
870 ref->method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
871 else if (wrapper_type == MONO_WRAPPER_ISINST)
872 ref->method = mono_marshal_get_isinst (klass);
874 g_assert_not_reached ();
877 case MONO_WRAPPER_LDFLD_REMOTE:
878 ref->method = mono_marshal_get_ldfld_remote_wrapper (NULL);
880 case MONO_WRAPPER_STFLD_REMOTE:
881 ref->method = mono_marshal_get_stfld_remote_wrapper (NULL);
884 case MONO_WRAPPER_ALLOC: {
885 int atype = decode_value (p, &p);
887 ref->method = mono_gc_get_managed_allocator_by_type (atype, !!(mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS));
889 g_error ("Error: No managed allocator, but we need one for AOT.\nAre you using non-standard GC options?\n");
892 case MONO_WRAPPER_WRITE_BARRIER:
893 ref->method = mono_gc_get_write_barrier ();
895 case MONO_WRAPPER_STELEMREF: {
896 int subtype = decode_value (p, &p);
898 if (subtype == WRAPPER_SUBTYPE_NONE) {
899 ref->method = mono_marshal_get_stelemref ();
900 } else if (subtype == WRAPPER_SUBTYPE_VIRTUAL_STELEMREF) {
904 kind = decode_value (p, &p);
906 /* Can't decode this */
909 if (target->wrapper_type == MONO_WRAPPER_STELEMREF) {
910 info = mono_marshal_get_wrapper_info (target);
913 if (info->subtype == subtype && info->d.virtual_stelemref.kind == kind)
914 ref->method = target;
921 g_assert_not_reached ();
925 case MONO_WRAPPER_SYNCHRONIZED: {
926 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
930 ref->method = mono_marshal_get_synchronized_wrapper (m);
933 case MONO_WRAPPER_UNKNOWN: {
934 int subtype = decode_value (p, &p);
936 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE || subtype == WRAPPER_SUBTYPE_STRUCTURE_TO_PTR) {
937 MonoClass *klass = decode_klass_ref (module, p, &p);
944 if (klass != target->klass)
947 if (subtype == WRAPPER_SUBTYPE_PTR_TO_STRUCTURE) {
948 if (strcmp (target->name, "PtrToStructure"))
950 ref->method = mono_marshal_get_ptr_to_struct (klass);
952 if (strcmp (target->name, "StructureToPtr"))
954 ref->method = mono_marshal_get_struct_to_ptr (klass);
956 } else if (subtype == WRAPPER_SUBTYPE_SYNCHRONIZED_INNER) {
957 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
961 ref->method = mono_marshal_get_synchronized_inner_wrapper (m);
962 } else if (subtype == WRAPPER_SUBTYPE_ARRAY_ACCESSOR) {
963 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
967 ref->method = mono_marshal_get_array_accessor_wrapper (m);
968 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN) {
969 ref->method = mono_marshal_get_gsharedvt_in_wrapper ();
970 } else if (subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
971 ref->method = mono_marshal_get_gsharedvt_out_wrapper ();
973 g_assert_not_reached ();
977 case MONO_WRAPPER_MANAGED_TO_MANAGED: {
978 int subtype = decode_value (p, &p);
980 if (subtype == WRAPPER_SUBTYPE_ELEMENT_ADDR) {
981 int rank = decode_value (p, &p);
982 int elem_size = decode_value (p, &p);
984 ref->method = mono_marshal_get_array_address (rank, elem_size);
985 } else if (subtype == WRAPPER_SUBTYPE_STRING_CTOR) {
989 m = decode_resolve_method_ref (module, p, &p);
995 g_assert (target->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED);
997 info = mono_marshal_get_wrapper_info (target);
998 if (info && info->subtype == subtype && info->d.string_ctor.method == m)
999 ref->method = target;
1005 case MONO_WRAPPER_MANAGED_TO_NATIVE: {
1007 int subtype = decode_value (p, &p);
1010 if (subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER) {
1015 if (strcmp (target->name, name) != 0)
1017 ref->method = target;
1019 m = decode_resolve_method_ref (module, p, &p);
1024 /* This should only happen when looking for an extra method */
1027 if (mono_marshal_method_from_wrapper (target) == m)
1028 ref->method = target;
1034 case MONO_WRAPPER_CASTCLASS: {
1035 int subtype = decode_value (p, &p);
1037 if (subtype == WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE)
1038 ref->method = mono_marshal_get_castclass_with_cache ();
1039 else if (subtype == WRAPPER_SUBTYPE_ISINST_WITH_CACHE)
1040 ref->method = mono_marshal_get_isinst_with_cache ();
1042 g_assert_not_reached ();
1045 case MONO_WRAPPER_RUNTIME_INVOKE: {
1046 int subtype = decode_value (p, &p);
1047 int pass_rgctx = decode_value (p, &p);
1052 if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC) {
1053 if (strcmp (target->name, "runtime_invoke_dynamic") != 0)
1055 ref->method = target;
1056 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT) {
1057 /* Direct wrapper */
1058 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1062 ref->method = mono_marshal_get_runtime_invoke (m, FALSE, pass_rgctx);
1063 } else if (subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL) {
1064 /* Virtual direct wrapper */
1065 MonoMethod *m = decode_resolve_method_ref (module, p, &p);
1069 ref->method = mono_marshal_get_runtime_invoke (m, TRUE, pass_rgctx);
1071 MonoMethodSignature *sig;
1074 sig = decode_signature_with_target (module, NULL, p, &p);
1075 info = mono_marshal_get_wrapper_info (target);
1078 if (info->subtype != subtype)
1080 if (info->d.runtime_invoke.pass_rgctx != pass_rgctx)
1082 g_assert (info->d.runtime_invoke.sig);
1083 if (mono_metadata_signature_equal (sig, info->d.runtime_invoke.sig))
1084 ref->method = target;
1090 case MONO_WRAPPER_DELEGATE_INVOKE:
1091 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1092 case MONO_WRAPPER_DELEGATE_END_INVOKE: {
1093 gboolean is_inflated = decode_value (p, &p);
1094 WrapperSubtype subtype;
1098 MonoMethod *invoke, *wrapper;
1100 klass = decode_klass_ref (module, p, &p);
1104 switch (wrapper_type) {
1105 case MONO_WRAPPER_DELEGATE_INVOKE:
1106 invoke = mono_get_delegate_invoke (klass);
1107 wrapper = mono_marshal_get_delegate_invoke (invoke, NULL);
1109 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE:
1110 invoke = mono_get_delegate_begin_invoke (klass);
1111 wrapper = mono_marshal_get_delegate_begin_invoke (invoke);
1113 case MONO_WRAPPER_DELEGATE_END_INVOKE:
1114 invoke = mono_get_delegate_end_invoke (klass);
1115 wrapper = mono_marshal_get_delegate_end_invoke (invoke);
1118 g_assert_not_reached ();
1121 if (target && wrapper != target)
1123 ref->method = wrapper;
1126 * These wrappers are associated with a signature, not with a method.
1127 * Since we can't decode them into methods, they need a target method.
1132 if (wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE) {
1135 subtype = decode_value (p, &p);
1136 info = mono_marshal_get_wrapper_info (target);
1138 if (info->subtype != subtype)
1141 if (subtype != WRAPPER_SUBTYPE_NONE)
1145 if (sig_matches_target (module, target, p, &p))
1146 ref->method = target;
1152 case MONO_WRAPPER_NATIVE_TO_MANAGED: {
1156 m = decode_resolve_method_ref (module, p, &p);
1159 klass = decode_klass_ref (module, p, &p);
1162 ref->method = mono_marshal_get_managed_wrapper (m, klass, 0);
1166 g_assert_not_reached ();
1168 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
1169 image_index = decode_value (p, &p);
1170 ref->token = decode_value (p, &p);
1172 image = load_image (module, image_index, TRUE);
1175 } else if (image_index == MONO_AOT_METHODREF_GINST) {
1178 MonoGenericContext ctx;
1181 * These methods do not have a token which resolves them, so we
1182 * resolve them immediately.
1184 klass = decode_klass_ref (module, p, &p);
1188 if (target && target->klass != klass)
1191 image_index = decode_value (p, &p);
1192 ref->token = decode_value (p, &p);
1194 image = load_image (module, image_index, TRUE);
1198 ref->method = mono_get_method_full (image, ref->token, NULL, NULL);
1202 memset (&ctx, 0, sizeof (ctx));
1204 if (FALSE && klass->generic_class) {
1205 ctx.class_inst = klass->generic_class->context.class_inst;
1206 ctx.method_inst = NULL;
1208 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, &error);
1209 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
1212 memset (&ctx, 0, sizeof (ctx));
1214 if (!decode_generic_context (module, &ctx, p, &p))
1217 ref->method = mono_class_inflate_generic_method_full_checked (ref->method, klass, &ctx, &error);
1218 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
1219 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
1223 klass = decode_klass_ref (module, p, &p);
1226 method_type = decode_value (p, &p);
1227 switch (method_type) {
1229 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
1232 ref->method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
1235 ref->method = mono_class_get_method_from_name (klass, "Get", -1);
1238 ref->method = mono_class_get_method_from_name (klass, "Address", -1);
1241 ref->method = mono_class_get_method_from_name (klass, "Set", -1);
1244 g_assert_not_reached ();
1247 if (image_index == MONO_AOT_METHODREF_LARGE_IMAGE_INDEX) {
1248 image_index = decode_value (p, &p);
1249 value = decode_value (p, &p);
1252 ref->token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
1254 image = load_image (module, image_index, TRUE);
1267 decode_method_ref (MonoAotModule *module, MethodRef *ref, guint8 *buf, guint8 **endbuf)
1269 return decode_method_ref_with_target (module, ref, NULL, buf, endbuf);
1273 * decode_resolve_method_ref_with_target:
1275 * Similar to decode_method_ref, but resolve and return the method itself.
1278 decode_resolve_method_ref_with_target (MonoAotModule *module, MonoMethod *target, guint8 *buf, guint8 **endbuf)
1283 res = decode_method_ref_with_target (module, &ref, target, buf, endbuf);
1290 return mono_get_method (ref.image, ref.token, NULL);
1294 decode_resolve_method_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
1296 return decode_resolve_method_ref_with_target (module, NULL, buf, endbuf);
1299 #ifdef ENABLE_AOT_CACHE
1305 * - Add options for controlling the cache size
1306 * - Handle full cache by deleting old assemblies lru style
1307 * - Maybe add a threshold after an assembly is AOT compiled
1308 * - Add options for enabling this for specific main assemblies
1311 /* The cache directory */
1312 static char *cache_dir;
1314 /* The number of assemblies AOTed in this run */
1315 static int cache_count;
1317 /* Whenever to AOT in-process */
1318 static gboolean in_process;
1321 collect_assemblies (gpointer data, gpointer user_data)
1323 MonoAssembly *ass = data;
1324 GSList **l = user_data;
1326 *l = g_slist_prepend (*l, ass);
1329 #define SHA1_DIGEST_LENGTH 20
1332 * get_aot_config_hash:
1334 * Return a hash for all the version information an AOT module depends on.
1336 static G_GNUC_UNUSED char*
1337 get_aot_config_hash (MonoAssembly *assembly)
1340 GSList *l, *assembly_list = NULL;
1343 guint8 digest [SHA1_DIGEST_LENGTH];
1346 build_info = mono_get_runtime_build_info ();
1348 s = g_string_new (build_info);
1350 mono_assembly_foreach (collect_assemblies, &assembly_list);
1353 * The assembly list includes the current assembly as well, no need
1356 for (l = assembly_list; l; l = l->next) {
1357 MonoAssembly *ass = l->data;
1359 g_string_append (s, "_");
1360 g_string_append (s, ass->aname.name);
1361 g_string_append (s, "_");
1362 g_string_append (s, ass->image->guid);
1365 for (i = 0; i < s->len; ++i) {
1366 if (!isalnum (s->str [i]) && s->str [i] != '-')
1370 mono_sha1_get_digest ((guint8*)s->str, s->len, digest);
1372 digest_str = g_malloc0 ((SHA1_DIGEST_LENGTH * 2) + 1);
1373 for (i = 0; i < SHA1_DIGEST_LENGTH; ++i)
1374 sprintf (digest_str + (i * 2), "%02x", digest [i]);
1376 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: file dependencies: %s, hash %s", s->str, digest_str);
1378 g_string_free (s, TRUE);
1384 aot_cache_init (void)
1388 enable_aot_cache = TRUE;
1393 * aot_cache_load_module:
1395 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1398 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1400 MonoAotCacheConfig *config;
1402 char *fname, *tmp2, *aot_options, *failure_fname;
1414 if (image_is_dynamic (assembly->image))
1417 /* Check in the list of assemblies enabled for aot caching */
1418 config = mono_get_aot_cache_config ();
1422 MonoDomain *domain = mono_domain_get ();
1423 MonoAssembly *entry_assembly = domain->entry_assembly;
1425 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1426 for (l = config->apps; l; l = l->next) {
1429 if ((entry_assembly && !strcmp (entry_assembly->aname.name, n)) || (!entry_assembly && !strcmp (assembly->aname.name, n)))
1437 for (l = config->assemblies; l; l = l->next) {
1440 if (!strcmp (assembly->aname.name, n))
1450 home = g_get_home_dir ();
1453 cache_dir = g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home);
1454 if (!g_file_test (cache_dir, G_FILE_TEST_EXISTS|G_FILE_TEST_IS_DIR))
1455 g_mkdir_with_parents (cache_dir, 0777);
1459 * The same assembly can be used in multiple configurations, i.e. multiple
1460 * versions of the runtime, with multiple versions of dependent assemblies etc.
1461 * To handle this, we compute a version string containing all this information, hash it,
1462 * and use the hash as a filename suffix.
1464 hash = get_aot_config_hash (assembly);
1466 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, hash, MONO_SOLIB_EXT);
1467 fname = g_build_filename (cache_dir, tmp2, NULL);
1471 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loading from cache: '%s'.", fname);
1472 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1475 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: found in cache: '%s'.", fname);
1479 if (!strcmp (assembly->aname.name, "mscorlib") && !mscorlib_aot_loaded)
1481 * Can't AOT this during startup, so we AOT it when called later from
1482 * mono_aot_get_method ().
1486 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: not found.");
1488 /* Only AOT one assembly per run to avoid slowing down execution too much */
1489 if (cache_count > 0)
1493 /* Check for previous failure */
1494 failure_fname = g_strdup_printf ("%s.failure", fname);
1495 failure_file = fopen (failure_fname, "r");
1497 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly->image->name, fname, failure_fname);
1498 g_free (failure_fname);
1501 g_free (failure_fname);
1502 fclose (failure_file);
1505 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly->image->name, fname);
1508 * We need to invoke the AOT compiler here. There are multiple approaches:
1509 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1510 * its hard to make the new process load the same set of assemblies.
1511 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1513 * - fork a new process and do the work there.
1516 aot_options = g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname, fname, config->aot_options ? "," : "", config->aot_options ? config->aot_options : "");
1517 /* Maybe due this in another thread ? */
1518 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1520 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation failed.");
1521 failure_fname = g_strdup_printf ("%s.failure", fname);
1522 failure_file = fopen (failure_fname, "a+");
1523 fclose (failure_file);
1524 g_free (failure_fname);
1526 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: compilation succeeded.");
1530 * - Avoid waiting for the aot process to finish ?
1531 * (less overhead, but multiple processes could aot the same assembly at the same time)
1540 logfile_name = g_strdup_printf ("%s/aot.log", cache_dir);
1541 logfile = fopen (logfile_name, "a+");
1542 g_free (logfile_name);
1544 dup2 (fileno (logfile), 1);
1545 dup2 (fileno (logfile), 2);
1547 aot_options = g_strdup_printf ("outfile=%s", fname);
1548 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
1556 waitpid (pid, &exit_status, 0);
1557 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
1558 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: failed.");
1560 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT: succeeded.");
1564 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
1572 aot_cache_init (void)
1577 aot_cache_load_module (MonoAssembly *assembly, char **aot_name)
1585 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
1589 guint16 *table, *entry;
1592 char *symbol = (char*)name;
1595 symbol = g_strdup_printf ("_%s", name);
1598 /* The first entry points to the hash */
1599 table = globals [0];
1602 table_size = table [0];
1605 hash = mono_metadata_str_hash (symbol) % table_size;
1607 entry = &table [hash * 2];
1609 /* Search the hash for the index into the globals table */
1611 while (entry [0] != 0) {
1612 guint32 index = entry [0] - 1;
1613 guint32 next = entry [1];
1615 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1617 if (!strcmp (globals [index * 2], symbol)) {
1618 global_index = index;
1623 entry = &table [next * 2];
1629 if (global_index != -1)
1630 *value = globals [global_index * 2 + 1];
1637 char *err = mono_dl_symbol (module, name, value);
1645 check_usable (MonoAssembly *assembly, MonoAotFileInfo *info, char **out_msg)
1649 gboolean usable = TRUE;
1652 guint32 excluded_cpu_optimizations;
1654 if (strcmp (assembly->image->guid, info->assembly_guid)) {
1655 msg = g_strdup_printf ("doesn't match assembly");
1659 build_info = mono_get_runtime_build_info ();
1660 if (strlen (info->runtime_version) > 0 && strcmp (info->runtime_version, build_info)) {
1661 msg = g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info->runtime_version, build_info);
1664 g_free (build_info);
1666 full_aot = info->flags & MONO_AOT_FILE_FLAG_FULL_AOT;
1668 if (mono_aot_only && !full_aot) {
1669 msg = g_strdup_printf ("not compiled with --aot=full");
1672 if (!mono_aot_only && full_aot) {
1673 msg = g_strdup_printf ("compiled with --aot=full");
1676 if (mono_llvm_only && !(info->flags & MONO_AOT_FILE_FLAG_LLVM_ONLY)) {
1677 msg = g_strdup_printf ("not compiled with --aot=llvmonly");
1681 /* mono_arch_find_imt_method () requires this */
1682 if ((info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && !mono_use_llvm) {
1683 msg = g_strdup_printf ("compiled against LLVM");
1686 if (!(info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM) && mono_use_llvm) {
1687 msg = g_strdup_printf ("not compiled against LLVM");
1691 if (mini_get_debug_options ()->mdb_optimizations && !(info->flags & MONO_AOT_FILE_FLAG_DEBUG) && !full_aot) {
1692 msg = g_strdup_printf ("not compiled for debugging");
1696 mono_arch_cpu_optimizations (&excluded_cpu_optimizations);
1697 if (info->opts & excluded_cpu_optimizations) {
1698 msg = g_strdup_printf ("compiled with unsupported CPU optimizations");
1702 if (!mono_aot_only && (info->simd_opts & ~mono_arch_cpu_enumerate_simd_versions ())) {
1703 msg = g_strdup_printf ("compiled with unsupported SIMD extensions");
1709 if (info->gc_name_index != -1) {
1710 char *gc_name = (char*)&blob [info->gc_name_index];
1711 const char *current_gc_name = mono_gc_get_gc_name ();
1713 if (strcmp (current_gc_name, gc_name) != 0) {
1714 msg = g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name, current_gc_name);
1724 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1727 get_call_table_entry (void *table, int index)
1729 #if defined(TARGET_ARM)
1734 ins_addr = (guint32*)table + index;
1736 if ((ins >> ARMCOND_SHIFT) == ARMCOND_NV) {
1738 offset = (((int)(((ins & 0xffffff) << 1) | ((ins >> 24) & 0x1))) << 7) >> 7;
1739 return (char*)ins_addr + (offset * 2) + 8 + 1;
1741 offset = (((int)ins & 0xffffff) << 8) >> 8;
1742 return (char*)ins_addr + (offset * 4) + 8;
1744 #elif defined(TARGET_ARM64)
1745 return mono_arch_get_call_target ((guint8*)table + (index * 4) + 4);
1746 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1747 /* The callee expects an ip which points after the call */
1748 return mono_arch_get_call_target ((guint8*)table + (index * 5) + 5);
1750 g_assert_not_reached ();
1756 init_gots (MonoAotModule *amodule)
1761 for (i = 0; i < N_COMMON_GOT_ENTRIES; ++i)
1762 amodule->got [i] = amodule->shared_got [i];
1764 if (amodule->llvm_got) {
1765 for (i = 0; i < N_COMMON_GOT_ENTRIES; ++i)
1766 amodule->llvm_got [i] = amodule->shared_got [i];
1771 init_amodule_got (MonoAotModule *amodule)
1775 /* These can't be initialized in load_aot_module () */
1776 if (!amodule->shared_got [6] && !amodule->got_initializing) {
1777 amodule->got_initializing = TRUE;
1779 memset (&ji, 0, sizeof (ji));
1780 ji.type = MONO_PATCH_INFO_INTERNAL_METHOD;
1781 ji.data.name = "mono_aot_init_llvm_method";
1782 amodule->got_initializing = TRUE;
1783 amodule->shared_got [6] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, &ji, FALSE);
1784 ji.data.name = "mono_aot_init_gshared_method_this";
1785 amodule->shared_got [7] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, &ji, FALSE);
1786 ji.data.name = "mono_aot_init_gshared_method_rgctx";
1787 amodule->shared_got [8] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, &ji, FALSE);
1788 init_gots (amodule);
1793 load_aot_module (MonoAssembly *assembly, gpointer user_data)
1796 MonoAotModule *amodule;
1798 gboolean usable = TRUE;
1799 char *version_symbol = NULL;
1801 gpointer *globals = NULL;
1802 MonoAotFileInfo *info = NULL;
1805 gboolean do_load_image = TRUE;
1806 int align_double, align_int64;
1808 if (mono_compile_aot)
1811 if (assembly->image->aot_module)
1813 * Already loaded. This can happen because the assembly loading code might invoke
1814 * the assembly load hooks multiple times for the same assembly.
1818 if (image_is_dynamic (assembly->image) || assembly->ref_only)
1822 if (static_aot_modules)
1823 info = g_hash_table_lookup (static_aot_modules, assembly->aname.name);
1831 /* Statically linked AOT module */
1832 aot_name = g_strdup_printf ("%s", assembly->aname.name);
1833 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
1834 globals = info->globals;
1836 if (enable_aot_cache)
1837 sofile = aot_cache_load_module (assembly, &aot_name);
1840 aot_name = g_strdup_printf ("%s%s", assembly->image->name, MONO_SOLIB_EXT);
1842 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1845 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1848 aot_name = g_strdup_printf ("%s/mono/aot-cache/%s/%s%s", mono_assembly_getrootdir(), ARCHITECTURE, g_path_get_basename (assembly->image->name), MONO_SOLIB_EXT);
1849 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
1851 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
1859 if (!sofile && !globals) {
1860 if (mono_aot_only && assembly->image->tables [MONO_TABLE_METHOD].rows)
1861 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
1867 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &version_symbol);
1868 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&info);
1871 if (version_symbol) {
1872 /* Old file format */
1873 version = atoi (version_symbol);
1876 version = info->version;
1879 if (version != MONO_AOT_FILE_VERSION) {
1880 msg = g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION, version);
1883 usable = check_usable (assembly, info, &msg);
1887 if (mono_aot_only) {
1888 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", aot_name, msg);
1890 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: module %s is unusable: %s.\n", aot_name, msg);
1895 mono_dl_close (sofile);
1896 assembly->image->aot_module = NULL;
1901 align_double = MONO_ABI_ALIGNOF (double);
1902 align_int64 = MONO_ABI_ALIGNOF (gint64);
1903 g_assert (info->double_align == align_double);
1904 g_assert (info->long_align == align_int64);
1905 g_assert (info->generic_tramp_num == MONO_TRAMPOLINE_NUM);
1909 amodule = g_new0 (MonoAotModule, 1);
1910 amodule->aot_name = aot_name;
1911 amodule->assembly = assembly;
1913 memcpy (&amodule->info, info, sizeof (*info));
1915 amodule->got = amodule->info.jit_got;
1916 amodule->llvm_got = amodule->info.llvm_got;
1917 amodule->globals = globals;
1918 amodule->sofile = sofile;
1919 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
1920 amodule->blob = blob;
1922 mono_mutex_init_recursive (&amodule->mutex);
1924 /* Read image table */
1926 guint32 table_len, i;
1929 table = info->image_table;
1932 table_len = *(guint32*)table;
1933 table += sizeof (guint32);
1934 amodule->image_table = g_new0 (MonoImage*, table_len);
1935 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
1936 amodule->image_guids = g_new0 (char*, table_len);
1937 amodule->image_table_len = table_len;
1938 for (i = 0; i < table_len; ++i) {
1939 MonoAssemblyName *aname = &(amodule->image_names [i]);
1941 aname->name = g_strdup (table);
1942 table += strlen (table) + 1;
1943 amodule->image_guids [i] = g_strdup (table);
1944 table += strlen (table) + 1;
1946 aname->culture = g_strdup (table);
1947 table += strlen (table) + 1;
1948 memcpy (aname->public_key_token, table, strlen (table) + 1);
1949 table += strlen (table) + 1;
1951 table = ALIGN_PTR_TO (table, 8);
1952 aname->flags = *(guint32*)table;
1954 aname->major = *(guint32*)table;
1956 aname->minor = *(guint32*)table;
1958 aname->build = *(guint32*)table;
1960 aname->revision = *(guint32*)table;
1965 amodule->jit_code_start = info->jit_code_start;
1966 amodule->jit_code_end = info->jit_code_end;
1967 amodule->method_info_offsets = info->method_info_offsets;
1968 amodule->ex_info_offsets = info->ex_info_offsets;
1969 amodule->class_info_offsets = info->class_info_offsets;
1970 amodule->class_name_table = info->class_name_table;
1971 amodule->extra_method_table = info->extra_method_table;
1972 amodule->extra_method_info_offsets = info->extra_method_info_offsets;
1973 amodule->unbox_trampolines = info->unbox_trampolines;
1974 amodule->unbox_trampolines_end = info->unbox_trampolines_end;
1975 amodule->unbox_trampoline_addresses = info->unbox_trampoline_addresses;
1976 amodule->unwind_info = info->unwind_info;
1977 amodule->mem_begin = amodule->jit_code_start;
1978 amodule->mem_end = info->mem_end;
1979 amodule->plt = info->plt;
1980 amodule->plt_end = info->plt_end;
1981 amodule->mono_eh_frame = info->mono_eh_frame;
1982 amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC] = info->specific_trampolines;
1983 amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX] = info->static_rgctx_trampolines;
1984 amodule->trampolines [MONO_AOT_TRAMP_IMT_THUNK] = info->imt_thunks;
1985 amodule->trampolines [MONO_AOT_TRAMP_GSHAREDVT_ARG] = info->gsharedvt_arg_trampolines;
1987 if (!strcmp (assembly->aname.name, "mscorlib"))
1988 mscorlib_aot_module = amodule;
1990 /* Compute method addresses */
1991 amodule->methods = g_malloc0 (amodule->info.nmethods * sizeof (gpointer));
1992 for (i = 0; i < amodule->info.nmethods; ++i) {
1995 if (amodule->info.llvm_get_method) {
1996 gpointer (*get_method) (int) = amodule->info.llvm_get_method;
1998 addr = get_method (i);
2001 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2002 if (!addr && amodule->info.method_addresses) {
2003 addr = get_call_table_entry (amodule->info.method_addresses, i);
2005 if (addr == amodule->info.method_addresses)
2009 amodule->methods [i] = GINT_TO_POINTER (-1);
2011 amodule->methods [i] = addr;
2014 if (make_unreadable) {
2015 #ifndef TARGET_WIN32
2017 guint8 *page_start, *page_end;
2020 addr = amodule->mem_begin;
2022 len = amodule->mem_end - amodule->mem_begin;
2024 /* Round down in both directions to avoid modifying data which is not ours */
2025 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2026 page_end = (guint8 *) (((gssize) (addr + len)) & ~ (mono_pagesize () - 1));
2027 if (page_end > page_start) {
2028 err = mono_mprotect (page_start, (page_end - page_start), MONO_MMAP_NONE);
2029 g_assert (err == 0);
2034 /* Compute the boundaries of LLVM code */
2035 if (info->flags & MONO_AOT_FILE_FLAG_WITH_LLVM)
2036 compute_llvm_code_range (amodule, &amodule->llvm_code_start, &amodule->llvm_code_end);
2040 if (amodule->jit_code_start) {
2041 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->jit_code_start);
2042 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->jit_code_end);
2044 if (amodule->llvm_code_start) {
2045 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->llvm_code_start);
2046 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->llvm_code_end);
2049 g_hash_table_insert (aot_modules, assembly, amodule);
2052 if (amodule->jit_code_start)
2053 mono_jit_info_add_aot_module (assembly->image, amodule->jit_code_start, amodule->jit_code_end);
2054 if (amodule->llvm_code_start)
2055 mono_jit_info_add_aot_module (assembly->image, amodule->llvm_code_start, amodule->llvm_code_end);
2057 assembly->image->aot_module = amodule;
2059 amodule->shared_got [0] = assembly->image;
2061 if (mono_aot_only) {
2063 find_symbol (amodule->sofile, amodule->globals, "specific_trampolines_page", (gpointer *)&code);
2064 amodule->use_page_trampolines = code != NULL;
2065 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2066 if (mono_defaults.corlib) {
2067 /* The second got slot contains the mscorlib got addr */
2068 MonoAotModule *mscorlib_amodule = mono_defaults.corlib->aot_module;
2070 amodule->shared_got [1] = mscorlib_amodule->got;
2072 amodule->shared_got [1] = amodule->got;
2076 if (mono_gc_is_moving ()) {
2079 memset (&ji, 0, sizeof (ji));
2080 ji.type = MONO_PATCH_INFO_GC_CARD_TABLE_ADDR;
2081 amodule->shared_got [2] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, &ji, FALSE);
2083 memset (&ji, 0, sizeof (ji));
2084 ji.type = MONO_PATCH_INFO_GC_NURSERY_START;
2085 amodule->shared_got [3] = mono_resolve_patch_target (NULL, mono_get_root_domain (), NULL, &ji, FALSE);
2088 amodule->shared_got [5] = amodule;
2089 /* Can't initialize the other shared got slots yet, they are initialized in init_amodule_got () */
2091 init_gots (amodule);
2094 * Register the plt region as a single trampoline so we can unwind from this code
2096 mono_tramp_info_register (
2097 mono_tramp_info_create (
2100 amodule->plt_end - amodule->plt,
2102 mono_unwind_get_cie_program ()
2108 * Since we store methoddef and classdef tokens when referring to methods/classes in
2109 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2110 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2111 * non-lazily, since we can't handle out-of-date errors later.
2112 * The cached class info also depends on the exact assemblies.
2114 #if defined(__native_client__)
2115 /* TODO: Don't 'load_image' on mscorlib due to a */
2116 /* recursive loading problem. This should be */
2117 /* removed if mscorlib is loaded from disk. */
2118 if (strncmp(assembly->aname.name, "mscorlib", 8)) {
2119 do_load_image = TRUE;
2121 do_load_image = FALSE;
2124 if (do_load_image) {
2125 for (i = 0; i < amodule->image_table_len; ++i)
2126 load_image (amodule, i, FALSE);
2129 if (amodule->out_of_date) {
2130 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: Module %s is unusable because a dependency is out-of-date.\n", assembly->image->name);
2132 g_error ("Failed to load AOT module '%s' while running in aot-only mode because a dependency cannot be found or it is out of date.\n", aot_name);
2135 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT: loaded AOT Module for %s.\n", assembly->image->name);
2139 * mono_aot_register_globals:
2141 * This is called by the ctor function in AOT images compiled with the
2142 * 'no-dlsym' option.
2145 mono_aot_register_globals (gpointer *globals)
2147 g_assert_not_reached ();
2151 * mono_aot_register_module:
2153 * This should be called by embedding code to register AOT modules statically linked
2154 * into the executable. AOT_INFO should be the value of the
2155 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2158 mono_aot_register_module (gpointer *aot_info)
2162 MonoAotFileInfo *info = (gpointer)aot_info;
2164 g_assert (info->version == MONO_AOT_FILE_VERSION);
2166 globals = info->globals;
2169 aname = info->assembly_name;
2171 /* This could be called before startup */
2175 if (!static_aot_modules)
2176 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
2178 g_hash_table_insert (static_aot_modules, aname, info);
2185 mono_aot_init (void)
2187 mono_mutex_init_recursive (&aot_mutex);
2188 mono_mutex_init_recursive (&aot_page_mutex);
2189 aot_modules = g_hash_table_new (NULL, NULL);
2191 #ifndef __native_client__
2192 mono_install_assembly_load_hook (load_aot_module, NULL);
2194 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
2196 if (g_getenv ("MONO_LASTAOT"))
2197 mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
2202 mono_aot_cleanup (void)
2204 if (aot_jit_icall_hash)
2205 g_hash_table_destroy (aot_jit_icall_hash);
2207 g_hash_table_destroy (aot_modules);
2211 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
2217 info->vtable_size = decode_value (buf, &buf);
2218 if (info->vtable_size == -1)
2221 flags = decode_value (buf, &buf);
2222 info->ghcimpl = (flags >> 0) & 0x1;
2223 info->has_finalize = (flags >> 1) & 0x1;
2224 info->has_cctor = (flags >> 2) & 0x1;
2225 info->has_nested_classes = (flags >> 3) & 0x1;
2226 info->blittable = (flags >> 4) & 0x1;
2227 info->has_references = (flags >> 5) & 0x1;
2228 info->has_static_refs = (flags >> 6) & 0x1;
2229 info->no_special_static_fields = (flags >> 7) & 0x1;
2230 info->is_generic_container = (flags >> 8) & 0x1;
2232 if (info->has_cctor) {
2233 res = decode_method_ref (module, &ref, buf, &buf);
2236 info->cctor_token = ref.token;
2238 if (info->has_finalize) {
2239 res = decode_method_ref (module, &ref, buf, &buf);
2242 info->finalize_image = ref.image;
2243 info->finalize_token = ref.token;
2246 info->instance_size = decode_value (buf, &buf);
2247 info->class_size = decode_value (buf, &buf);
2248 info->packing_size = decode_value (buf, &buf);
2249 info->min_align = decode_value (buf, &buf);
2257 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2260 MonoClass *klass = vtable->klass;
2261 MonoAotModule *amodule = klass->image->aot_module;
2263 MonoCachedClassInfo class_info;
2268 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !amodule)
2271 info = &amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2274 err = decode_cached_class_info (amodule, &class_info, p, &p);
2278 for (i = 0; i < slot; ++i)
2279 decode_method_ref (amodule, &ref, p, &p);
2281 res = decode_method_ref (amodule, &ref, p, &p);
2284 if (ref.no_aot_trampoline)
2287 if (mono_metadata_token_index (ref.token) == 0 || mono_metadata_token_table (ref.token) != MONO_TABLE_METHOD)
2290 return mono_aot_get_method_from_token (domain, ref.image, ref.token);
2294 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2296 MonoAotModule *amodule = klass->image->aot_module;
2300 if (klass->rank || !amodule)
2303 p = (guint8*)&amodule->blob [mono_aot_get_offset (amodule->class_info_offsets, mono_metadata_token_index (klass->type_token) - 1)];
2305 err = decode_cached_class_info (amodule, res, p, &p);
2313 * mono_aot_get_class_from_name:
2315 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2316 * using a cache stored in the AOT file.
2317 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2319 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2323 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2325 MonoAotModule *amodule = image->aot_module;
2326 guint16 *table, *entry;
2329 char full_name_buf [1024];
2331 const char *name2, *name_space2;
2333 guint32 cols [MONO_TYPEDEF_SIZE];
2334 GHashTable *nspace_table;
2336 if (!amodule || !amodule->class_name_table)
2339 amodule_lock (amodule);
2343 /* First look in the cache */
2344 if (!amodule->name_cache)
2345 amodule->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
2346 nspace_table = g_hash_table_lookup (amodule->name_cache, name_space);
2348 *klass = g_hash_table_lookup (nspace_table, name);
2350 amodule_unlock (amodule);
2355 table_size = amodule->class_name_table [0];
2356 table = amodule->class_name_table + 1;
2358 if (name_space [0] == '\0')
2359 full_name = g_strdup_printf ("%s", name);
2361 if (strlen (name_space) + strlen (name) < 1000) {
2362 sprintf (full_name_buf, "%s.%s", name_space, name);
2363 full_name = full_name_buf;
2365 full_name = g_strdup_printf ("%s.%s", name_space, name);
2368 hash = mono_metadata_str_hash (full_name) % table_size;
2369 if (full_name != full_name_buf)
2372 entry = &table [hash * 2];
2374 if (entry [0] != 0) {
2375 t = &image->tables [MONO_TABLE_TYPEDEF];
2378 guint32 index = entry [0];
2379 guint32 next = entry [1];
2380 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
2382 name_table_accesses ++;
2384 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
2386 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2387 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2389 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
2391 amodule_unlock (amodule);
2392 *klass = mono_class_get_checked (image, token, &error);
2393 if (!mono_error_ok (&error))
2394 mono_error_cleanup (&error); /* FIXME don't swallow the error */
2398 amodule_lock (amodule);
2399 nspace_table = g_hash_table_lookup (amodule->name_cache, name_space);
2400 if (!nspace_table) {
2401 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
2402 g_hash_table_insert (amodule->name_cache, (char*)name_space2, nspace_table);
2404 g_hash_table_insert (nspace_table, (char*)name2, *klass);
2405 amodule_unlock (amodule);
2411 entry = &table [next * 2];
2418 amodule_unlock (amodule);
2423 /* Compute the boundaries of the LLVM code for AMODULE. */
2425 compute_llvm_code_range (MonoAotModule *amodule, guint8 **code_start, guint8 **code_end)
2428 int version, fde_count;
2431 if (amodule->info.llvm_get_method) {
2432 gpointer (*get_method) (int) = amodule->info.llvm_get_method;
2434 *code_start = get_method (-1);
2435 *code_end = get_method (-2);
2437 g_assert (*code_end > *code_start);
2441 g_assert (amodule->mono_eh_frame);
2443 p = amodule->mono_eh_frame;
2445 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2449 g_assert (version == 3);
2452 p = ALIGN_PTR_TO (p, 4);
2454 fde_count = *(guint32*)p;
2458 if (fde_count > 0) {
2459 *code_start = amodule->methods [table [0]];
2460 *code_end = (guint8*)amodule->methods [table [(fde_count - 1) * 2]] + table [fde_count * 2];
2468 is_llvm_code (MonoAotModule *amodule, guint8 *code)
2470 if ((guint8*)code >= amodule->llvm_code_start && (guint8*)code < amodule->llvm_code_end)
2477 is_thumb_code (MonoAotModule *amodule, guint8 *code)
2479 if (is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_THUMB))
2486 * decode_llvm_mono_eh_frame:
2488 * Decode the EH information emitted by our modified LLVM compiler and construct a
2489 * MonoJitInfo structure from it.
2490 * LOCKING: Acquires the domain lock.
2493 decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
2494 MonoMethod *method, guint8 *code, guint32 code_len,
2495 MonoJitExceptionInfo *clauses, int num_clauses,
2496 MonoJitInfoFlags flags,
2498 int *this_reg, int *this_offset)
2500 guint8 *p, *code1, *code2;
2501 guint8 *fde, *cie, *code_start, *code_end;
2502 int version, fde_count;
2504 int i, pos, left, right;
2505 MonoJitExceptionInfo *ei;
2506 guint32 fde_len, ei_len, nested_len, nindex;
2507 gpointer *type_info;
2509 MonoLLVMFDEInfo info;
2511 if (!amodule->mono_eh_frame) {
2512 jinfo = mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, num_clauses, 0));
2513 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, 0);
2514 memcpy (jinfo->clauses, clauses, num_clauses * sizeof (MonoJitExceptionInfo));
2518 g_assert (amodule->mono_eh_frame && code);
2520 p = amodule->mono_eh_frame;
2522 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2526 g_assert (version == 3);
2528 /* func_encoding = *p; */
2530 p = ALIGN_PTR_TO (p, 4);
2532 fde_count = *(guint32*)p;
2536 /* There is +1 entry in the table */
2537 cie = p + ((fde_count + 1) * 8);
2539 /* Binary search in the table to find the entry for code */
2543 pos = (left + right) / 2;
2545 /* The table contains method index/fde offset pairs */
2546 g_assert (table [(pos * 2)] != -1);
2547 code1 = amodule->methods [table [(pos * 2)]];
2548 if (pos + 1 == fde_count) {
2549 code2 = amodule->llvm_code_end;
2551 g_assert (table [(pos + 1) * 2] != -1);
2552 code2 = amodule->methods [table [(pos + 1) * 2]];
2557 else if (code >= code2)
2563 code_start = amodule->methods [table [(pos * 2)]];
2564 if (pos + 1 == fde_count) {
2565 /* The +1 entry in the table contains the length of the last method */
2566 int len = table [(pos + 1) * 2];
2567 code_end = code_start + len;
2569 code_end = amodule->methods [table [(pos + 1) * 2]];
2572 code_len = code_end - code_start;
2574 g_assert (code >= code_start && code < code_end);
2576 if (is_thumb_code (amodule, code_start))
2577 /* Clear thumb flag */
2578 code_start = (guint8*)(((mgreg_t)code_start) & ~1);
2580 fde = amodule->mono_eh_frame + table [(pos * 2) + 1];
2581 /* This won't overflow because there is +1 entry in the table */
2582 fde_len = table [(pos * 2) + 2 + 1] - table [(pos * 2) + 1];
2584 mono_unwind_decode_llvm_mono_fde (fde, fde_len, cie, code_start, &info);
2586 ei_len = info.ex_info_len;
2587 type_info = info.type_info;
2588 *this_reg = info.this_reg;
2589 *this_offset = info.this_offset;
2591 /* Count number of nested clauses */
2593 for (i = 0; i < ei_len; ++i) {
2594 /* This might be unaligned */
2595 gint32 cindex1 = read32 (type_info [i]);
2598 for (l = nesting [cindex1]; l; l = l->next)
2603 * LLVM might represent one IL region with multiple regions, so have to
2604 * allocate a new JI.
2607 mono_domain_alloc0_lock_free (domain, mono_jit_info_size (flags, ei_len + nested_len, 0));
2608 mono_jit_info_init (jinfo, method, code, code_len, flags, ei_len + nested_len, 0);
2610 jinfo->unwind_info = mono_cache_unwind_info (info.unw_info, info.unw_info_len);
2611 /* This signals that unwind_info points to a normal cached unwind info */
2612 jinfo->from_aot = 0;
2613 jinfo->from_llvm = 1;
2615 for (i = 0; i < ei_len; ++i) {
2617 * clauses contains the original IL exception info saved by the AOT
2618 * compiler, we have to combine that with the information produced by LLVM
2620 /* The type_info entries contain IL clause indexes */
2621 int clause_index = read32 (type_info [i]);
2622 MonoJitExceptionInfo *jei = &jinfo->clauses [i];
2623 MonoJitExceptionInfo *orig_jei = &clauses [clause_index];
2625 g_assert (clause_index < num_clauses);
2626 jei->flags = orig_jei->flags;
2627 jei->data.catch_class = orig_jei->data.catch_class;
2629 jei->try_start = ei [i].try_start;
2630 jei->try_end = ei [i].try_end;
2631 jei->handler_start = ei [i].handler_start;
2632 jei->clause_index = clause_index;
2634 if (is_thumb_code (amodule, jei->try_start)) {
2635 jei->try_start = (void*)((mgreg_t)jei->try_start & ~1);
2636 jei->try_end = (void*)((mgreg_t)jei->try_end & ~1);
2637 /* Make sure we transition to thumb when a handler starts */
2638 jei->handler_start = (void*)((mgreg_t)jei->handler_start + 1);
2642 /* See exception_cb () in mini-llvm.c as to why this is needed */
2644 for (i = 0; i < ei_len; ++i) {
2645 gint32 cindex1 = read32 (type_info [i]);
2648 for (l = nesting [cindex1]; l; l = l->next) {
2649 gint32 nesting_cindex = GPOINTER_TO_INT (l->data);
2650 MonoJitExceptionInfo *nesting_ei;
2651 MonoJitExceptionInfo *nesting_clause = &clauses [nesting_cindex];
2653 nesting_ei = &jinfo->clauses [nindex];
2656 memcpy (nesting_ei, &jinfo->clauses [i], sizeof (MonoJitExceptionInfo));
2657 nesting_ei->flags = nesting_clause->flags;
2658 nesting_ei->data.catch_class = nesting_clause->data.catch_class;
2659 nesting_ei->clause_index = nesting_cindex;
2662 g_assert (nindex == ei_len + nested_len);
2668 alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
2672 if (async_context) {
2673 res = mono_domain_alloc0_lock_free (domain, size);
2674 InterlockedExchangeAdd (&async_jit_info_size, size);
2676 res = mono_domain_alloc0 (domain, size);
2682 * LOCKING: Acquires the domain lock.
2683 * In async context, this is async safe.
2686 decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
2687 MonoMethod *method, guint8* ex_info,
2688 guint8 *code, guint32 code_len)
2690 int i, buf_len, num_clauses, len;
2692 MonoJitInfoFlags flags = JIT_INFO_NONE;
2693 guint unwind_info, eflags;
2694 gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
2695 gboolean from_llvm, has_gc_map;
2697 int try_holes_info_size, num_holes;
2698 int this_reg = 0, this_offset = 0;
2701 /* Load the method info from the AOT file */
2702 async = mono_thread_info_is_async_context ();
2705 eflags = decode_value (p, &p);
2706 has_generic_jit_info = (eflags & 1) != 0;
2707 has_dwarf_unwind_info = (eflags & 2) != 0;
2708 has_clauses = (eflags & 4) != 0;
2709 has_seq_points = (eflags & 8) != 0;
2710 from_llvm = (eflags & 16) != 0;
2711 has_try_block_holes = (eflags & 32) != 0;
2712 has_gc_map = (eflags & 64) != 0;
2713 has_arch_eh_jit_info = (eflags & 128) != 0;
2715 if (has_dwarf_unwind_info) {
2716 unwind_info = decode_value (p, &p);
2717 g_assert (unwind_info < (1 << 30));
2719 unwind_info = decode_value (p, &p);
2721 if (has_generic_jit_info)
2722 flags |= JIT_INFO_HAS_GENERIC_JIT_INFO;
2724 if (has_try_block_holes) {
2725 num_holes = decode_value (p, &p);
2726 flags |= JIT_INFO_HAS_TRY_BLOCK_HOLES;
2727 try_holes_info_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
2729 num_holes = try_holes_info_size = 0;
2732 if (has_arch_eh_jit_info) {
2733 flags |= JIT_INFO_HAS_ARCH_EH_INFO;
2734 /* Overwrite the original code_len which includes alignment padding */
2735 code_len = decode_value (p, &p);
2738 /* Exception table */
2740 num_clauses = decode_value (p, &p);
2745 MonoJitExceptionInfo *clauses;
2752 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
2755 clauses = g_new0 (MonoJitExceptionInfo, num_clauses);
2756 nesting = g_new0 (GSList*, num_clauses);
2758 for (i = 0; i < num_clauses; ++i) {
2759 MonoJitExceptionInfo *ei = &clauses [i];
2761 ei->flags = decode_value (p, &p);
2763 if (decode_value (p, &p))
2764 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
2766 ei->clause_index = i;
2768 ei->try_offset = decode_value (p, &p);
2769 ei->try_len = decode_value (p, &p);
2770 ei->handler_offset = decode_value (p, &p);
2771 ei->handler_len = decode_value (p, &p);
2773 /* Read the list of nesting clauses */
2775 int nesting_index = decode_value (p, &p);
2776 if (nesting_index == -1)
2778 nesting [i] = g_slist_prepend (nesting [i], GINT_TO_POINTER (nesting_index));
2782 jinfo = decode_llvm_mono_eh_frame (amodule, domain, method, code, code_len, clauses, num_clauses, flags, nesting, &this_reg, &this_offset);
2785 for (i = 0; i < num_clauses; ++i)
2786 g_slist_free (nesting [i]);
2789 len = mono_jit_info_size (flags, num_clauses, num_holes);
2790 jinfo = alloc0_jit_info_data (domain, len, async);
2791 mono_jit_info_init (jinfo, method, code, code_len, flags, num_clauses, num_holes);
2793 for (i = 0; i < jinfo->num_clauses; ++i) {
2794 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2796 ei->flags = decode_value (p, &p);
2798 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
2799 /* Not used for catch clauses */
2800 if (ei->flags != MONO_EXCEPTION_CLAUSE_NONE)
2801 ei->exvar_offset = decode_value (p, &p);
2803 ei->exvar_offset = decode_value (p, &p);
2806 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
2807 ei->data.filter = code + decode_value (p, &p);
2809 int len = decode_value (p, &p);
2815 ei->data.catch_class = decode_klass_ref (amodule, p, &p);
2819 ei->try_start = code + decode_value (p, &p);
2820 ei->try_end = code + decode_value (p, &p);
2821 ei->handler_start = code + decode_value (p, &p);
2824 jinfo->unwind_info = unwind_info;
2825 jinfo->domain_neutral = 0;
2826 jinfo->from_aot = 1;
2829 if (has_try_block_holes) {
2830 MonoTryBlockHoleTableJitInfo *table;
2832 g_assert (jinfo->has_try_block_holes);
2834 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2837 table->num_holes = (guint16)num_holes;
2838 for (i = 0; i < num_holes; ++i) {
2839 MonoTryBlockHoleJitInfo *hole = &table->holes [i];
2840 hole->clause = decode_value (p, &p);
2841 hole->length = decode_value (p, &p);
2842 hole->offset = decode_value (p, &p);
2846 if (has_arch_eh_jit_info) {
2847 MonoArchEHJitInfo *eh_info;
2849 g_assert (jinfo->has_arch_eh_info);
2851 eh_info = mono_jit_info_get_arch_eh_info (jinfo);
2852 eh_info->stack_size = decode_value (p, &p);
2853 eh_info->epilog_size = decode_value (p, &p);
2857 /* The rest is not needed in async mode */
2858 jinfo->async = TRUE;
2859 jinfo->d.aot_info = amodule;
2864 if (has_generic_jit_info) {
2865 MonoGenericJitInfo *gi;
2868 g_assert (jinfo->has_generic_jit_info);
2870 gi = mono_jit_info_get_generic_jit_info (jinfo);
2873 gi->nlocs = decode_value (p, &p);
2875 gi->locations = alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
2876 for (i = 0; i < gi->nlocs; ++i) {
2877 MonoDwarfLocListEntry *entry = &gi->locations [i];
2879 entry->is_reg = decode_value (p, &p);
2880 entry->reg = decode_value (p, &p);
2882 entry->offset = decode_value (p, &p);
2884 entry->from = decode_value (p, &p);
2885 entry->to = decode_value (p, &p);
2890 gi->has_this = this_reg != -1;
2891 gi->this_reg = this_reg;
2892 gi->this_offset = this_offset;
2894 gi->has_this = decode_value (p, &p);
2895 gi->this_reg = decode_value (p, &p);
2896 gi->this_offset = decode_value (p, &p);
2900 len = decode_value (p, &p);
2904 jinfo->d.method = decode_resolve_method_ref (amodule, p, &p);
2906 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2907 if (decode_value (p, &p)) {
2909 MonoGenericSharingContext *gsctx = gi->generic_sharing_context;
2911 gsctx->is_gsharedvt = TRUE;
2915 if (method && has_seq_points) {
2916 MonoSeqPointInfo *seq_points;
2918 p += mono_seq_point_info_read (&seq_points, p, FALSE);
2920 mono_domain_lock (domain);
2921 g_hash_table_insert (domain_jit_info (domain)->seq_points, method, seq_points);
2922 mono_domain_unlock (domain);
2925 /* Load debug info */
2926 buf_len = decode_value (p, &p);
2928 mono_debug_add_aot_method (domain, method, code, p, buf_len);
2932 int map_size = decode_value (p, &p);
2933 /* The GC map requires 4 bytes of alignment */
2934 while ((guint64)(gsize)p % 4)
2940 if (amodule != jinfo->d.method->klass->image->aot_module) {
2943 ji_to_amodule = g_hash_table_new (NULL, NULL);
2944 g_hash_table_insert (ji_to_amodule, jinfo, amodule);
2952 amodule_contains_code_addr (MonoAotModule *amodule, guint8 *code)
2954 return (code >= amodule->jit_code_start && code <= amodule->jit_code_end) ||
2955 (code >= amodule->llvm_code_start && code <= amodule->llvm_code_end);
2959 * mono_aot_get_unwind_info:
2961 * Return a pointer to the DWARF unwind info belonging to JI.
2964 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
2966 MonoAotModule *amodule;
2968 guint8 *code = ji->code_start;
2971 amodule = ji->d.aot_info;
2973 amodule = jinfo_get_method (ji)->klass->image->aot_module;
2975 g_assert (ji->from_aot);
2977 if (!amodule_contains_code_addr (amodule, code)) {
2978 /* ji belongs to a different aot module than amodule */
2980 g_assert (ji_to_amodule);
2981 amodule = g_hash_table_lookup (ji_to_amodule, ji);
2983 g_assert (amodule_contains_code_addr (amodule, code));
2987 p = amodule->unwind_info + ji->unwind_info;
2988 *unwind_info_len = decode_value (p, &p);
2993 msort_method_addresses_internal (gpointer *array, int *indexes, int lo, int hi, gpointer *scratch, int *scratch_indexes)
2995 int mid = (lo + hi) / 2;
3002 for (i = lo; i < hi; ++i)
3003 if (array [i] > array [i + 1])
3006 /* Already sorted */
3010 msort_method_addresses_internal (array, indexes, lo, mid, scratch, scratch_indexes);
3011 msort_method_addresses_internal (array, indexes, mid + 1, hi, scratch, scratch_indexes);
3013 if (array [mid] < array [mid + 1])
3019 for (i = lo; i <= hi; i ++) {
3020 if (t_lo <= mid && ((t_hi > hi) || array [t_lo] < array [t_hi])) {
3021 scratch [i] = array [t_lo];
3022 scratch_indexes [i] = indexes [t_lo];
3025 scratch [i] = array [t_hi];
3026 scratch_indexes [i] = indexes [t_hi];
3030 for (i = lo; i <= hi; ++i) {
3031 array [i] = scratch [i];
3032 indexes [i] = scratch_indexes [i];
3037 msort_method_addresses (gpointer *array, int *indexes, int len)
3040 int *scratch_indexes;
3042 scratch = g_new (gpointer, len);
3043 scratch_indexes = g_new (int, len);
3044 msort_method_addresses_internal (array, indexes, 0, len - 1, scratch, scratch_indexes);
3046 g_free (scratch_indexes);
3050 * mono_aot_find_jit_info:
3052 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3053 * to the jit info tables.
3054 * FIXME: Large sizes in the lock free allocator
3057 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
3059 int pos, left, right, code_len;
3060 int method_index, table_len;
3062 MonoAotModule *amodule = image->aot_module;
3063 MonoMethod *method = NULL;
3065 guint8 *code, *ex_info, *p;
3069 guint8 *code1, *code2;
3076 nmethods = amodule->info.nmethods;
3078 if (domain != mono_get_root_domain ())
3082 if (!amodule_contains_code_addr (amodule, addr))
3085 async = mono_thread_info_is_async_context ();
3087 /* Compute a sorted table mapping code to method indexes. */
3088 if (!amodule->sorted_methods) {
3090 gpointer *methods = g_new0 (gpointer, nmethods);
3091 int *method_indexes = g_new0 (int, nmethods);
3092 int methods_len = 0;
3094 for (i = 0; i < nmethods; ++i) {
3095 /* Skip the -1 entries to speed up sorting */
3096 if (amodule->methods [i] == GINT_TO_POINTER (-1))
3098 methods [methods_len] = amodule->methods [i];
3099 method_indexes [methods_len] = i;
3102 /* Use a merge sort as this is mostly sorted */
3103 msort_method_addresses (methods, method_indexes, methods_len);
3104 for (i = 0; i < methods_len -1; ++i)
3105 g_assert (methods [i] <= methods [i + 1]);
3106 amodule->sorted_methods_len = methods_len;
3107 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_methods, methods, NULL) != NULL)
3108 /* Somebody got in before us */
3110 if (InterlockedCompareExchangePointer ((gpointer*)&amodule->sorted_method_indexes, method_indexes, NULL) != NULL)
3111 /* Somebody got in before us */
3112 g_free (method_indexes);
3115 /* Binary search in the sorted_methods table */
3116 methods = amodule->sorted_methods;
3117 methods_len = amodule->sorted_methods_len;
3120 right = methods_len;
3122 pos = (left + right) / 2;
3124 code1 = methods [pos];
3125 if (pos + 1 == methods_len) {
3126 if (code1 >= amodule->jit_code_start && code1 < amodule->jit_code_end)
3127 code2 = amodule->jit_code_end;
3129 code2 = amodule->llvm_code_end;
3131 code2 = methods [pos + 1];
3136 else if (code >= code2)
3142 g_assert (addr >= methods [pos]);
3143 if (pos + 1 < methods_len)
3144 g_assert (addr < methods [pos + 1]);
3145 method_index = amodule->sorted_method_indexes [pos];
3147 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3149 JitInfoMap *table = amodule->async_jit_info_table;
3153 len = table [0].method_index;
3154 for (i = 1; i < len; ++i) {
3155 if (table [i].method_index == method_index)
3156 return table [i].jinfo;
3161 code = amodule->methods [method_index];
3162 ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
3164 if (pos == methods_len - 1) {
3165 if (code >= amodule->jit_code_start && code < amodule->jit_code_end)
3166 code_len = amodule->jit_code_end - code;
3168 code_len = amodule->llvm_code_end - code;
3170 code_len = (guint8*)methods [pos + 1] - (guint8*)methods [pos];
3173 g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
3175 /* Might be a wrapper/extra method */
3177 if (amodule->extra_methods) {
3178 amodule_lock (amodule);
3179 method = g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
3180 amodule_unlock (amodule);
3186 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
3188 * This is hit for extra methods which are called directly, so they are
3189 * not in amodule->extra_methods.
3191 table_len = amodule->extra_method_info_offsets [0];
3192 table = amodule->extra_method_info_offsets + 1;
3199 pos = ((left + right) / 2);
3201 g_assert (pos < table_len);
3203 if (table [pos * 2] < method_index)
3205 else if (table [pos * 2] > method_index)
3211 p = amodule->blob + table [(pos * 2) + 1];
3212 method = decode_resolve_method_ref (amodule, p, &p);
3214 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3217 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
3218 method = mono_get_method (image, token, NULL);
3225 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3227 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code, code_len);
3229 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
3231 /* Add it to the normal JitInfo tables */
3233 JitInfoMap *old_table, *new_table;
3237 * Use a simple inmutable table with linear search to cache async jit info entries.
3238 * This assumes that the number of entries is small.
3241 /* Copy the table, adding a new entry at the end */
3242 old_table = amodule->async_jit_info_table;
3244 len = old_table[0].method_index;
3247 new_table = alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
3249 memcpy (new_table, old_table, len * sizeof (JitInfoMap));
3250 new_table [0].method_index = len + 1;
3251 new_table [len].method_index = method_index;
3252 new_table [len].jinfo = jinfo;
3254 mono_memory_barrier ();
3255 if (InterlockedCompareExchangePointer ((gpointer)&amodule->async_jit_info_table, new_table, old_table) == old_table)
3259 mono_jit_info_table_add (domain, jinfo);
3262 if ((guint8*)addr >= (guint8*)jinfo->code_start + jinfo->code_size)
3263 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3270 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
3278 case MONO_PATCH_INFO_METHOD:
3279 case MONO_PATCH_INFO_METHOD_JUMP:
3280 case MONO_PATCH_INFO_ICALL_ADDR:
3281 case MONO_PATCH_INFO_METHOD_RGCTX:
3282 case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
3286 res = decode_method_ref (aot_module, &ref, p, &p);
3290 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)) {
3291 ji->data.target = mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref.image, ref.token));
3292 ji->type = MONO_PATCH_INFO_ABS;
3296 ji->data.method = ref.method;
3298 ji->data.method = mono_get_method (ref.image, ref.token, NULL);
3299 g_assert (ji->data.method);
3300 mono_class_init (ji->data.method->klass);
3304 case MONO_PATCH_INFO_INTERNAL_METHOD:
3305 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
3306 guint32 len = decode_value (p, &p);
3308 ji->data.name = (char*)p;
3312 case MONO_PATCH_INFO_METHODCONST:
3314 ji->data.method = decode_resolve_method_ref (aot_module, p, &p);
3315 if (!ji->data.method)
3318 case MONO_PATCH_INFO_VTABLE:
3319 case MONO_PATCH_INFO_CLASS:
3320 case MONO_PATCH_INFO_IID:
3321 case MONO_PATCH_INFO_ADJUSTED_IID:
3323 ji->data.klass = decode_klass_ref (aot_module, p, &p);
3324 if (!ji->data.klass)
3327 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
3328 ji->data.del_tramp = mono_mempool_alloc0 (mp, sizeof (MonoDelegateClassMethodPair));
3329 ji->data.del_tramp->klass = decode_klass_ref (aot_module, p, &p);
3330 if (!ji->data.del_tramp->klass)
3332 if (decode_value (p, &p)) {
3333 ji->data.del_tramp->method = decode_resolve_method_ref (aot_module, p, &p);
3334 if (!ji->data.del_tramp->method)
3337 ji->data.del_tramp->is_virtual = decode_value (p, &p) ? TRUE : FALSE;
3339 case MONO_PATCH_INFO_IMAGE:
3340 ji->data.image = load_image (aot_module, decode_value (p, &p), TRUE);
3341 if (!ji->data.image)
3344 case MONO_PATCH_INFO_FIELD:
3345 case MONO_PATCH_INFO_SFLDA:
3347 ji->data.field = decode_field_info (aot_module, p, &p);
3348 if (!ji->data.field)
3351 case MONO_PATCH_INFO_SWITCH:
3352 ji->data.table = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
3353 ji->data.table->table_size = decode_value (p, &p);
3354 table = mono_domain_alloc (mono_domain_get (), sizeof (gpointer) * ji->data.table->table_size);
3355 ji->data.table->table = (MonoBasicBlock**)table;
3356 for (i = 0; i < ji->data.table->table_size; i++)
3357 table [i] = (gpointer)(gssize)decode_value (p, &p);
3359 case MONO_PATCH_INFO_R4: {
3362 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3363 val = decode_value (p, &p);
3364 *(float*)ji->data.target = *(float*)&val;
3367 case MONO_PATCH_INFO_R8: {
3371 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3373 val [0] = decode_value (p, &p);
3374 val [1] = decode_value (p, &p);
3375 v = ((guint64)val [1] << 32) | ((guint64)val [0]);
3376 *(double*)ji->data.target = *(double*)&v;
3379 case MONO_PATCH_INFO_LDSTR:
3380 image = load_image (aot_module, decode_value (p, &p), TRUE);
3383 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
3385 case MONO_PATCH_INFO_RVA:
3386 case MONO_PATCH_INFO_DECLSEC:
3387 case MONO_PATCH_INFO_LDTOKEN:
3388 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
3390 image = load_image (aot_module, decode_value (p, &p), TRUE);
3393 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
3395 ji->data.token->has_context = decode_value (p, &p);
3396 if (ji->data.token->has_context) {
3397 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p);
3402 case MONO_PATCH_INFO_EXC_NAME:
3403 ji->data.klass = decode_klass_ref (aot_module, p, &p);
3404 if (!ji->data.klass)
3406 ji->data.name = ji->data.klass->name;
3408 case MONO_PATCH_INFO_METHOD_REL:
3409 ji->data.offset = decode_value (p, &p);
3411 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
3412 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR:
3413 case MONO_PATCH_INFO_GC_NURSERY_START:
3414 case MONO_PATCH_INFO_JIT_TLS_ID:
3416 case MONO_PATCH_INFO_CASTCLASS_CACHE:
3417 ji->data.index = decode_value (p, &p);
3419 case MONO_PATCH_INFO_RGCTX_FETCH:
3420 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX: {
3422 MonoJumpInfoRgctxEntry *entry;
3423 guint32 offset, val;
3426 offset = decode_value (p, &p);
3427 val = decode_value (p, &p);
3429 entry = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3430 p2 = aot_module->blob + offset;
3431 entry->method = decode_resolve_method_ref (aot_module, p2, &p2);
3432 entry->in_mrgctx = ((val & 1) > 0) ? TRUE : FALSE;
3433 entry->info_type = (val >> 1) & 0xff;
3434 entry->data = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3435 entry->data->type = (val >> 9) & 0xff;
3437 res = decode_patch (aot_module, mp, entry->data, p, &p);
3440 ji->data.rgctx_entry = entry;
3443 case MONO_PATCH_INFO_SEQ_POINT_INFO:
3444 case MONO_PATCH_INFO_AOT_MODULE:
3446 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE: {
3447 MonoJumpInfoImtTramp *imt_tramp = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoImtTramp));
3449 imt_tramp->method = decode_resolve_method_ref (aot_module, p, &p);
3450 imt_tramp->vt_offset = decode_value (p, &p);
3452 ji->data.imt_tramp = imt_tramp;
3455 case MONO_PATCH_INFO_SIGNATURE:
3456 ji->data.target = decode_signature (aot_module, p, &p);
3458 case MONO_PATCH_INFO_TLS_OFFSET:
3459 ji->data.target = GINT_TO_POINTER (decode_value (p, &p));
3461 case MONO_PATCH_INFO_GSHAREDVT_CALL: {
3462 MonoJumpInfoGSharedVtCall *info = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoGSharedVtCall));
3463 info->sig = decode_signature (aot_module, p, &p);
3464 g_assert (info->sig);
3465 info->method = decode_resolve_method_ref (aot_module, p, &p);
3466 g_assert (info->method);
3468 ji->data.target = info;
3471 case MONO_PATCH_INFO_GSHAREDVT_METHOD: {
3472 MonoGSharedVtMethodInfo *info = mono_mempool_alloc0 (mp, sizeof (MonoGSharedVtMethodInfo));
3475 info->method = decode_resolve_method_ref (aot_module, p, &p);
3476 g_assert (info->method);
3477 info->num_entries = decode_value (p, &p);
3478 info->count_entries = info->num_entries;
3479 info->entries = mono_mempool_alloc0 (mp, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->num_entries);
3480 for (i = 0; i < info->num_entries; ++i) {
3481 MonoRuntimeGenericContextInfoTemplate *template = &info->entries [i];
3483 template->info_type = decode_value (p, &p);
3484 switch (mini_rgctx_info_type_to_patch_info_type (template->info_type)) {
3485 case MONO_PATCH_INFO_CLASS: {
3486 MonoClass *klass = decode_klass_ref (aot_module, p, &p);
3489 template->data = &klass->byval_arg;
3492 case MONO_PATCH_INFO_FIELD:
3493 template->data = decode_field_info (aot_module, p, &p);
3494 if (!template->data)
3498 g_assert_not_reached ();
3502 ji->data.target = info;
3505 case MONO_PATCH_INFO_LDSTR_LIT: {
3506 int len = decode_value (p, &p);
3509 s = mono_mempool_alloc0 (mp, len + 1);
3510 memcpy (s, p, len + 1);
3513 ji->data.target = s;
3516 case MONO_PATCH_INFO_VIRT_METHOD: {
3517 MonoJumpInfoVirtMethod *info = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoVirtMethod));
3519 info->klass = decode_klass_ref (aot_module, p, &p);
3520 g_assert (info->klass);
3521 info->method = decode_resolve_method_ref (aot_module, p, &p);
3522 g_assert (info->method);
3524 ji->data.target = info;
3527 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG:
3529 case MONO_PATCH_INFO_AOT_JIT_INFO:
3530 ji->data.index = decode_value (p, &p);
3533 g_warning ("unhandled type %d", ji->type);
3534 g_assert_not_reached ();
3545 static MonoJumpInfo*
3546 load_patch_info (MonoAotModule *aot_module, MonoMemPool *mp, int n_patches,
3547 gboolean llvm, guint32 **got_slots,
3548 guint8 *buf, guint8 **endbuf)
3550 MonoJumpInfo *patches;
3554 guint32 *got_offsets;
3559 got = aot_module->llvm_got;
3560 got_offsets = aot_module->info.llvm_got_info_offsets;
3562 got = aot_module->got;
3563 got_offsets = aot_module->info.got_info_offsets;
3566 patches = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
3568 *got_slots = g_malloc (sizeof (guint32) * n_patches);
3570 for (pindex = 0; pindex < n_patches; ++pindex) {
3571 MonoJumpInfo *ji = &patches [pindex];
3576 got_offset = decode_value (p, &p);
3578 shared_p = aot_module->blob + mono_aot_get_offset (got_offsets, got_offset);
3580 ji->type = decode_value (shared_p, &shared_p);
3582 /* See load_method () for SFLDA */
3583 if (got [got_offset] && ji->type != MONO_PATCH_INFO_SFLDA) {
3584 /* Already loaded */
3586 res = decode_patch (aot_module, mp, ji, shared_p, &shared_p);
3591 (*got_slots) [pindex] = got_offset;
3598 g_free (*got_slots);
3605 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
3608 * Jump addresses cannot be patched by the trampoline code since it
3609 * does not have access to the caller's address. Instead, we collect
3610 * the addresses of the GOT slots pointing to a method, and patch
3611 * them after the method has been compiled.
3613 MonoJitDomainInfo *info = domain_jit_info (domain);
3616 mono_domain_lock (domain);
3617 if (!info->jump_target_got_slot_hash)
3618 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
3619 list = g_hash_table_lookup (info->jump_target_got_slot_hash, method);
3620 list = g_slist_prepend (list, got_slot);
3621 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
3622 mono_domain_unlock (domain);
3628 * Load the method identified by METHOD_INDEX from the AOT image. Return a
3629 * pointer to the native code of the method, or NULL if not found.
3630 * METHOD might not be set if the caller only has the image/token info.
3633 load_method (MonoDomain *domain, MonoAotModule *amodule, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
3635 MonoJitInfo *jinfo = NULL;
3636 guint8 *code = NULL, *info;
3639 init_amodule_got (amodule);
3641 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE) {
3643 /* The caller cannot handle this */
3644 g_assert_not_reached ();
3648 if (domain != mono_get_root_domain ())
3649 /* Non shared AOT code can't be used in other appdomains */
3652 if (amodule->out_of_date)
3655 if (amodule->info.llvm_get_method) {
3657 * Obtain the method address by calling a generated function in the LLVM module.
3659 gpointer (*get_method) (int) = amodule->info.llvm_get_method;
3660 code = get_method (method_index);
3665 if (amodule->methods [method_index] == GINT_TO_POINTER (-1)) {
3666 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3670 method = mono_get_method (image, token, NULL);
3671 full_name = mono_method_full_name (method, TRUE);
3672 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: NOT FOUND: %s.", full_name);
3677 code = amodule->methods [method_index];
3680 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3682 if (!amodule->methods_loaded) {
3683 amodule_lock (amodule);
3684 if (!amodule->methods_loaded) {
3687 loaded = g_new0 (guint32, amodule->info.nmethods / 32 + 1);
3688 mono_memory_barrier ();
3689 amodule->methods_loaded = loaded;
3691 amodule_unlock (amodule);
3694 if ((amodule->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
3697 if (mono_last_aot_method != -1) {
3698 if (mono_jit_stats.methods_aot >= mono_last_aot_method)
3700 else if (mono_jit_stats.methods_aot == mono_last_aot_method - 1) {
3702 method = mono_get_method (image, token, NULL);
3704 char *name = mono_method_full_name (method, TRUE);
3705 g_print ("LAST AOT METHOD: %s.\n", name);
3708 g_print ("LAST AOT METHOD: %p %d\n", code, method_index);
3713 if (!(is_llvm_code (amodule, code) && (amodule->info.flags & MONO_AOT_FILE_FLAG_LLVM_ONLY))) {
3714 res = init_method (amodule, method_index, method, NULL, NULL);
3719 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
3723 method = mono_get_method (image, token, NULL);
3725 full_name = mono_method_full_name (method, TRUE);
3728 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3730 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND method %s [%p - %p %p]", full_name, code, code + jinfo->code_size, info);
3734 amodule_lock (amodule);
3736 InterlockedIncrement (&mono_jit_stats.methods_aot);
3738 amodule->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
3742 if (method && method->wrapper_type)
3743 g_hash_table_insert (amodule->method_to_code, method, code);
3745 amodule_unlock (amodule);
3747 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION) {
3751 method = mono_get_method (amodule->assembly->image, token, NULL);
3754 mono_profiler_method_jit (method);
3755 jinfo = mono_jit_info_table_find (domain, (char*)code);
3757 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
3770 find_aot_method_in_amodule (MonoAotModule *amodule, MonoMethod *method, guint32 hash_full)
3772 guint32 table_size, entry_size, hash;
3773 guint32 *table, *entry;
3775 static guint32 n_extra_decodes;
3777 if (!amodule || amodule->out_of_date)
3780 table_size = amodule->extra_method_table [0];
3781 hash = hash_full % table_size;
3782 table = amodule->extra_method_table + 1;
3785 entry = &table [hash * entry_size];
3792 guint32 key = entry [0];
3793 guint32 value = entry [1];
3794 guint32 next = entry [entry_size - 1];
3798 p = amodule->blob + key;
3801 amodule_lock (amodule);
3802 if (!amodule->method_ref_to_method)
3803 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
3804 m = g_hash_table_lookup (amodule->method_ref_to_method, p);
3805 amodule_unlock (amodule);
3807 m = decode_resolve_method_ref_with_target (amodule, method, p, &p);
3809 * Can't catche runtime invoke wrappers since it would break
3810 * the check in decode_method_ref_with_target ().
3812 if (m && m->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
3813 amodule_lock (amodule);
3814 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
3815 amodule_unlock (amodule);
3823 /* Special case: wrappers of shared generic methods */
3824 if (m && method->wrapper_type && m->wrapper_type == m->wrapper_type &&
3825 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
3826 MonoMethod *w1 = mono_marshal_method_from_wrapper (method);
3827 MonoMethod *w2 = mono_marshal_method_from_wrapper (m);
3829 if (w1->is_inflated && ((MonoMethodInflated *)w1)->declaring == w2) {
3835 /* Methods decoded needlessly */
3837 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
3842 entry = &table [next * entry_size];
3851 add_module_cb (gpointer key, gpointer value, gpointer user_data)
3853 g_ptr_array_add ((GPtrArray*)user_data, value);
3859 * Try finding METHOD in the extra_method table in all AOT images.
3860 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
3861 * module where the method was found.
3864 find_aot_method (MonoMethod *method, MonoAotModule **out_amodule)
3869 guint32 hash = mono_aot_method_hash (method);
3871 /* Try the method's module first */
3872 *out_amodule = method->klass->image->aot_module;
3873 index = find_aot_method_in_amodule (method->klass->image->aot_module, method, hash);
3874 if (index != 0xffffff)
3878 * Try all other modules.
3879 * This is needed because generic instances klass->image points to the image
3880 * containing the generic definition, but the native code is generated to the
3881 * AOT image which contains the reference.
3884 /* Make a copy to avoid doing the search inside the aot lock */
3885 modules = g_ptr_array_new ();
3887 g_hash_table_foreach (aot_modules, add_module_cb, modules);
3891 for (i = 0; i < modules->len; ++i) {
3892 MonoAotModule *amodule = g_ptr_array_index (modules, i);
3894 if (amodule != method->klass->image->aot_module)
3895 index = find_aot_method_in_amodule (amodule, method, hash);
3896 if (index != 0xffffff) {
3897 *out_amodule = amodule;
3902 g_ptr_array_free (modules, TRUE);
3908 mono_aot_find_method_index (MonoMethod *method)
3910 MonoAotModule *out_amodule;
3911 return find_aot_method (method, &out_amodule);
3915 init_method (MonoAotModule *amodule, guint32 method_index, MonoMethod *method, MonoClass *init_class, MonoGenericContext *context)
3917 MonoDomain *domain = mono_domain_get ();
3920 gboolean from_plt = method == NULL;
3921 int pindex, n_patches;
3923 MonoJitInfo *jinfo = NULL;
3924 guint8 *code, *info;
3926 code = amodule->methods [method_index];
3927 info = &amodule->blob [mono_aot_get_offset (amodule->method_info_offsets, method_index)];
3932 klass = method->klass;
3933 decode_klass_ref (amodule, p, &p);
3935 klass = decode_klass_ref (amodule, p, &p);
3938 n_patches = decode_value (p, &p);
3941 MonoJumpInfo *patches;
3946 mp = mono_mempool_new ();
3948 if ((gpointer)code >= amodule->info.jit_code_start && (gpointer)code <= amodule->info.jit_code_end) {
3953 got = amodule->llvm_got;
3957 patches = load_patch_info (amodule, mp, n_patches, llvm, &got_slots, p, &p);
3958 if (patches == NULL)
3961 for (pindex = 0; pindex < n_patches; ++pindex) {
3962 MonoJumpInfo *ji = &patches [pindex];
3966 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
3967 * been initialized by load_method () for a static cctor before the cctor has
3968 * finished executing (#23242).
3970 if (!got [got_slots [pindex]] || ji->type == MONO_PATCH_INFO_SFLDA) {
3971 /* In llvm-only made, we might encounter shared methods */
3972 if (mono_llvm_only && ji->type == MONO_PATCH_INFO_METHOD && mono_method_check_context_used (ji->data.method)) {
3976 ji->data.method = mono_class_inflate_generic_method_checked (ji->data.method, context, &error);
3978 /* This cannot be resolved in mono_resolve_patch_target () */
3979 if (ji->type == MONO_PATCH_INFO_AOT_JIT_INFO) {
3980 // FIXME: Lookup using the index
3981 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
3982 ji->type = MONO_PATCH_INFO_ABS;
3983 ji->data.target = jinfo;
3985 addr = mono_resolve_patch_target (method, domain, code, ji, TRUE);
3986 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
3987 addr = mono_create_ftnptr (domain, addr);
3988 mono_memory_barrier ();
3989 got [got_slots [pindex]] = addr;
3990 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
3991 register_jump_target_got_slot (domain, ji->data.method, &(got [got_slots [pindex]]));
3993 ji->type = MONO_PATCH_INFO_NONE;
3998 mono_mempool_destroy (mp);
4001 if (mini_get_debug_options ()->load_aot_jit_info_eagerly)
4002 jinfo = mono_aot_find_jit_info (domain, amodule->assembly->image, code);
4005 mono_runtime_class_init (mono_class_vtable (domain, init_class));
4006 else if (from_plt && klass && !klass->generic_container)
4007 mono_runtime_class_init (mono_class_vtable (domain, klass));
4019 mono_aot_init_llvm_method (gpointer aot_module, guint32 method_index)
4021 MonoAotModule *amodule = aot_module;
4024 // FIXME: Handle failure
4025 res = init_method (amodule, method_index, NULL, NULL, NULL);
4030 mono_aot_init_gshared_method_this (gpointer aot_module, guint32 method_index, MonoObject *this)
4032 MonoAotModule *amodule = aot_module;
4039 // FIXME: Handle failure
4040 klass = this->vtable->klass;
4041 res = init_method (amodule, method_index, NULL, klass, klass->generic_class ? &klass->generic_class->context : NULL);
4046 mono_aot_init_gshared_method_rgctx (gpointer aot_module, guint32 method_index, MonoMethodRuntimeGenericContext *rgctx)
4048 MonoAotModule *amodule = aot_module;
4050 MonoGenericContext context = { NULL, NULL };
4051 MonoClass *klass = rgctx->class_vtable->klass;
4053 if (klass->generic_class)
4054 context.class_inst = klass->generic_class->context.class_inst;
4055 else if (klass->generic_container)
4056 context.class_inst = klass->generic_container->context.class_inst;
4057 context.method_inst = rgctx->method_inst;
4059 res = init_method (amodule, method_index, NULL, rgctx->class_vtable->klass, &context);
4064 * mono_aot_get_method:
4066 * Return a pointer to the AOTed native code for METHOD if it can be found,
4068 * On platforms with function pointers, this doesn't return a function pointer.
4071 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
4073 MonoClass *klass = method->klass;
4074 guint32 method_index;
4075 MonoAotModule *amodule = klass->image->aot_module;
4078 if (enable_aot_cache && !amodule && domain->entry_assembly && klass->image == mono_defaults.corlib) {
4079 /* This cannot be AOTed during startup, so do it now */
4080 if (!mscorlib_aot_loaded) {
4081 mscorlib_aot_loaded = TRUE;
4082 load_aot_module (klass->image->assembly, NULL);
4083 amodule = klass->image->aot_module;
4090 if (amodule->out_of_date)
4093 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4094 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
4095 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
4096 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
4100 * Use the original method instead of its invoke-with-check wrapper.
4101 * This is not a problem when using full-aot, since it doesn't support
4104 if (mono_aot_only && method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4105 return mono_aot_get_method (domain, mono_marshal_method_from_wrapper (method));
4107 g_assert (klass->inited);
4109 /* Find method index */
4110 method_index = 0xffffff;
4111 if (method->is_inflated && !method->wrapper_type && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)) {
4113 * For generic methods, we store the fully shared instance in place of the
4116 method = mono_method_get_declaring_generic_method (method);
4117 method_index = mono_metadata_token_index (method->token) - 1;
4118 } else if (method->is_inflated || !method->token) {
4119 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4120 amodule_lock (amodule);
4121 code = g_hash_table_lookup (amodule->method_to_code, method);
4122 amodule_unlock (amodule);
4126 method_index = find_aot_method (method, &amodule);
4128 * Special case the ICollection<T> wrappers for arrays, as they cannot
4129 * be statically enumerated, and each wrapper ends up calling the same
4132 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_MANAGED && method->klass->rank && strstr (method->name, "System.Collections.Generic")) {
4133 MonoMethod *m = mono_aot_get_array_helper_from_wrapper (method);
4135 code = mono_aot_get_method (domain, m);
4141 * Special case Array.GetGenericValueImpl which is a generic icall.
4142 * Generic sharing currently can't handle it, but the icall returns data using
4143 * an out parameter, so the managed-to-native wrappers can share the same code.
4145 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass == mono_defaults.array_class && !strcmp (method->name, "GetGenericValueImpl")) {
4148 MonoGenericContext ctx;
4149 MonoType *args [16];
4151 if (mono_method_signature (method)->params [1]->type == MONO_TYPE_OBJECT)
4152 /* Avoid recursion */
4155 m = mono_class_get_method_from_name (mono_defaults.array_class, "GetGenericValueImpl", 2);
4158 memset (&ctx, 0, sizeof (ctx));
4159 args [0] = &mono_defaults.object_class->byval_arg;
4160 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4162 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4163 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
4166 * Get the code for the <object> instantiation which should be emitted into
4167 * the mscorlib aot image by the AOT compiler.
4169 code = mono_aot_get_method (domain, m);
4174 /* Same for CompareExchange<T> and Exchange<T> */
4175 /* Same for Volatile.Read<T>/Write<T> */
4176 if (method_index == 0xffffff && method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE && method->klass->image == mono_defaults.corlib &&
4177 ((!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]))) ||
4178 (!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)))) ||
4179 (!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])))))) {
4182 MonoGenericContext ctx;
4183 MonoType *args [16];
4184 gpointer iter = NULL;
4186 while ((m = mono_class_get_methods (method->klass, &iter))) {
4187 if (mono_method_signature (m)->generic_param_count && !strcmp (m->name, method->name))
4192 memset (&ctx, 0, sizeof (ctx));
4193 args [0] = &mono_defaults.object_class->byval_arg;
4194 ctx.method_inst = mono_metadata_get_generic_inst (1, args);
4196 m = mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m, &ctx, &error), TRUE, TRUE);
4197 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
4199 /* Avoid recursion */
4204 * Get the code for the <object> instantiation which should be emitted into
4205 * the mscorlib aot image by the AOT compiler.
4207 code = mono_aot_get_method (domain, m);
4212 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
4213 /* Partial sharing */
4216 shared = mini_get_shared_method (method);
4217 method_index = find_aot_method (shared, &amodule);
4218 if (method_index != 0xffffff)
4222 if (method_index == 0xffffff && method->is_inflated && mono_method_is_generic_sharable_full (method, FALSE, FALSE, TRUE)) {
4224 /* Use the all-vt shared method since this is what was AOTed */
4225 method_index = find_aot_method (mini_get_shared_method_full (method, TRUE, TRUE), &amodule);
4226 if (method_index != 0xffffff)
4227 method = mini_get_shared_method_full (method, TRUE, FALSE);
4230 if (method_index == 0xffffff) {
4231 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
4234 full_name = mono_method_full_name (method, TRUE);
4235 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
4241 if (method_index == 0xffffff)
4244 /* Needed by find_jit_info */
4245 amodule_lock (amodule);
4246 if (!amodule->extra_methods)
4247 amodule->extra_methods = g_hash_table_new (NULL, NULL);
4248 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
4249 amodule_unlock (amodule);
4252 method_index = mono_metadata_token_index (method->token) - 1;
4255 return load_method (domain, amodule, klass->image, method, method->token, method_index);
4259 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4263 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
4265 MonoAotModule *aot_module = image->aot_module;
4271 method_index = mono_metadata_token_index (token) - 1;
4273 return load_method (domain, aot_module, image, NULL, token, method_index);
4279 } IsGotEntryUserData;
4282 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
4284 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
4285 MonoAotModule *aot_module = (MonoAotModule*)value;
4287 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
4292 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
4294 IsGotEntryUserData user_data;
4299 user_data.addr = addr;
4300 user_data.res = FALSE;
4302 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
4305 return user_data.res;
4310 MonoAotModule *module;
4311 } FindAotModuleUserData;
4314 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
4316 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
4317 MonoAotModule *aot_module = (MonoAotModule*)value;
4319 if (amodule_contains_code_addr (aot_module, data->addr))
4320 data->module = aot_module;
4323 static inline MonoAotModule*
4324 find_aot_module (guint8 *code)
4326 FindAotModuleUserData user_data;
4331 /* Reading these need no locking */
4332 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
4335 user_data.addr = code;
4336 user_data.module = NULL;
4339 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
4342 return user_data.module;
4346 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
4348 MonoAotModule *amodule;
4351 * Since AOT code is only used in the root domain,
4352 * mono_domain_get () != mono_get_root_domain () means the calling method
4353 * is AppDomain:InvokeInDomain, so this is the same check as in
4354 * mono_method_same_domain () but without loading the metadata for the method.
4356 if (mono_domain_get () == mono_get_root_domain ()) {
4358 amodule = find_aot_module (code);
4362 mono_arch_patch_plt_entry (plt_entry, got, regs, addr);
4367 * mono_aot_plt_resolve:
4369 * This function is called by the entries in the PLT to resolve the actual method that
4370 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
4371 * Returns NULL if the something cannot be loaded.
4374 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
4376 #ifdef MONO_ARCH_AOT_SUPPORTED
4377 guint8 *p, *target, *plt_entry;
4379 MonoAotModule *module = (MonoAotModule*)aot_module;
4380 gboolean res, no_ftnptr = FALSE;
4382 gboolean using_gsharedvt = FALSE;
4384 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
4386 p = &module->blob [plt_info_offset];
4388 ji.type = decode_value (p, &p);
4390 mp = mono_mempool_new_size (512);
4391 res = decode_patch (module, mp, &ji, p, &p);
4394 mono_mempool_destroy (mp);
4398 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
4399 using_gsharedvt = TRUE;
4403 * Avoid calling resolve_patch_target in the full-aot case if possible, since
4404 * it would create a trampoline, and we don't need that.
4405 * We could do this only if the method does not need the special handling
4406 * in mono_magic_trampoline ().
4408 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) &&
4409 !mono_method_needs_static_rgctx_invoke (ji.data.method, FALSE) && !using_gsharedvt) {
4410 target = mono_jit_compile_method (ji.data.method);
4413 target = mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE);
4417 * The trampoline expects us to return a function descriptor on platforms which use
4418 * it, but resolve_patch_target returns a direct function pointer for some type of
4419 * patches, so have to translate between the two.
4420 * FIXME: Clean this up, but how ?
4422 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) {
4423 /* These should already have a function descriptor */
4424 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4425 /* Our function descriptors have a 0 environment, gcc created ones don't */
4426 if (ji.type != MONO_PATCH_INFO_INTERNAL_METHOD && ji.type != MONO_PATCH_INFO_JIT_ICALL_ADDR && ji.type != MONO_PATCH_INFO_ICALL_ADDR)
4427 g_assert (((gpointer*)target) [2] == 0);
4430 } else if (!no_ftnptr) {
4431 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4432 g_assert (((gpointer*)target) [2] != 0);
4434 target = mono_create_ftnptr (mono_domain_get (), target);
4437 mono_mempool_destroy (mp);
4439 /* Patch the PLT entry with target which might be the actual method not a trampoline */
4440 plt_entry = mono_aot_get_plt_entry (code);
4441 g_assert (plt_entry);
4442 mono_aot_patch_plt_entry (code, plt_entry, module->got, NULL, target);
4446 g_assert_not_reached ();
4454 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
4455 * method in the module is loaded to avoid committing memory by writing to it.
4456 * LOCKING: Assumes the AMODULE lock is held.
4459 init_plt (MonoAotModule *amodule)
4464 if (amodule->plt_inited)
4467 if (amodule->info.plt_size <= 1) {
4468 amodule->plt_inited = TRUE;
4472 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
4475 * Initialize the PLT entries in the GOT to point to the default targets.
4478 tramp = mono_create_ftnptr (mono_domain_get (), tramp);
4479 for (i = 1; i < amodule->info.plt_size; ++i)
4480 /* All the default entries point to the AOT trampoline */
4481 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = tramp;
4483 amodule->plt_inited = TRUE;
4487 * mono_aot_get_plt_entry:
4489 * Return the address of the PLT entry called by the code at CODE if exists.
4492 mono_aot_get_plt_entry (guint8 *code)
4494 MonoAotModule *amodule = find_aot_module (code);
4495 guint8 *target = NULL;
4501 if (is_thumb_code (amodule, code))
4502 return mono_arm_get_thumb_plt_entry (code);
4505 #ifdef MONO_ARCH_AOT_SUPPORTED
4506 target = mono_arch_get_call_target (code);
4508 g_assert_not_reached ();
4512 while (target != NULL) {
4513 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4516 // Add 4 since mono_arch_get_call_target assumes we're passing
4517 // the instruction after the actual branch instruction.
4518 target = mono_arch_get_call_target (target + 4);
4523 if ((target >= (guint8*)(amodule->plt)) && (target < (guint8*)(amodule->plt_end)))
4531 * mono_aot_get_plt_info_offset:
4533 * Return the PLT info offset belonging to the plt entry called by CODE.
4536 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
4538 guint8 *plt_entry = mono_aot_get_plt_entry (code);
4540 g_assert (plt_entry);
4542 /* The offset is embedded inside the code after the plt entry */
4543 #ifdef MONO_ARCH_AOT_SUPPORTED
4544 return mono_arch_get_plt_info_offset (plt_entry, regs, code);
4546 g_assert_not_reached ();
4552 mono_create_ftnptr_malloc (guint8 *code)
4554 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4555 MonoPPCFunctionDescriptor *ftnptr = g_malloc0 (sizeof (MonoPPCFunctionDescriptor));
4557 ftnptr->code = code;
4568 * mono_aot_register_jit_icall:
4570 * Register a JIT icall which is called by trampolines in full-aot mode. This should
4571 * be called from mono_arch_init () during startup.
4574 mono_aot_register_jit_icall (const char *name, gpointer addr)
4576 /* No need for locking */
4577 if (!aot_jit_icall_hash)
4578 aot_jit_icall_hash = g_hash_table_new (g_str_hash, g_str_equal);
4579 g_hash_table_insert (aot_jit_icall_hash, (char*)name, addr);
4583 * load_function_full:
4585 * Load the function named NAME from the aot image.
4588 load_function_full (MonoAotModule *amodule, const char *name, MonoTrampInfo **out_tinfo)
4592 int n_patches, pindex;
4595 guint32 info_offset;
4599 symbol = g_strdup_printf ("%s", name);
4600 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&code);
4603 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
4605 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT: FOUND function '%s' in AOT file '%s'.", name, amodule->aot_name);
4609 symbol = g_strdup_printf ("%s_p", name);
4610 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&p);
4613 /* Nothing to patch */
4616 info_offset = *(guint32*)p;
4618 MonoTrampInfo *tinfo;
4619 guint32 code_size, uw_info_len, uw_offset;
4621 /* Construct a MonoTrampInfo from the data in the AOT image */
4623 p += sizeof (guint32);
4624 code_size = *(guint32*)p;
4625 p += sizeof (guint32);
4626 uw_offset = *(guint32*)p;
4627 uw_info = amodule->unwind_info + uw_offset;
4628 uw_info_len = decode_value (uw_info, &uw_info);
4630 tinfo = g_new0 (MonoTrampInfo, 1);
4632 tinfo->code_size = code_size;
4633 tinfo->uw_info = uw_info;
4634 tinfo->uw_info_len = uw_info_len;
4639 p = amodule->blob + info_offset;
4641 /* Similar to mono_aot_load_method () */
4643 n_patches = decode_value (p, &p);
4646 MonoJumpInfo *patches;
4649 mp = mono_mempool_new ();
4651 patches = load_patch_info (amodule, mp, n_patches, FALSE, &got_slots, p, &p);
4654 for (pindex = 0; pindex < n_patches; ++pindex) {
4655 MonoJumpInfo *ji = &patches [pindex];
4658 if (amodule->got [got_slots [pindex]])
4662 * When this code is executed, the runtime may not be initalized yet, so
4663 * resolve the patch info by hand.
4665 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
4666 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
4667 target = mono_get_lmf_addr;
4668 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint")) {
4669 target = mono_thread_force_interruption_checkpoint;
4670 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
4671 target = mono_exception_from_token;
4672 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
4673 target = mono_get_throw_exception ();
4674 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
4675 int tramp_type2 = atoi (ji->data.name + strlen ("trampoline_func_"));
4676 target = (gpointer)mono_get_trampoline_func (tramp_type2);
4677 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
4678 /* atoll is needed because the the offset is unsigned */
4682 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
4683 g_assert (res == 1);
4684 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
4685 target = mono_create_ftnptr_malloc (target);
4686 } else if (!strcmp (ji->data.name, "mono_thread_get_and_clear_pending_exception")) {
4687 target = mono_thread_get_and_clear_pending_exception;
4688 } else if (!strcmp (ji->data.name, "debugger_agent_single_step_from_context")) {
4689 target = debugger_agent_single_step_from_context;
4690 } else if (!strcmp (ji->data.name, "debugger_agent_breakpoint_from_context")) {
4691 target = debugger_agent_breakpoint_from_context;
4692 } else if (strstr (ji->data.name, "generic_trampoline_")) {
4693 target = mono_aot_get_trampoline (ji->data.name);
4694 } else if (aot_jit_icall_hash && g_hash_table_lookup (aot_jit_icall_hash, ji->data.name)) {
4695 /* Registered by mono_arch_init () */
4696 target = g_hash_table_lookup (aot_jit_icall_hash, ji->data.name);
4698 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
4699 g_assert_not_reached ();
4703 /* Hopefully the code doesn't have patches which need method or
4706 target = mono_resolve_patch_target (NULL, NULL, code, ji, FALSE);
4710 amodule->got [got_slots [pindex]] = target;
4715 mono_mempool_destroy (mp);
4722 load_function (MonoAotModule *amodule, const char *name)
4724 return load_function_full (amodule, name, NULL);
4727 static MonoAotModule*
4728 get_mscorlib_aot_module (void)
4731 MonoAotModule *amodule;
4733 image = mono_defaults.corlib;
4735 amodule = image->aot_module;
4737 amodule = mscorlib_aot_module;
4743 no_trampolines (void)
4745 g_assert_not_reached ();
4749 * Return the trampoline identified by NAME from the mscorlib AOT file.
4750 * On ppc64, this returns a function descriptor.
4753 mono_aot_get_trampoline_full (const char *name, MonoTrampInfo **out_tinfo)
4755 MonoAotModule *amodule = get_mscorlib_aot_module ();
4757 if (mono_llvm_only) {
4759 return no_trampolines;
4762 return mono_create_ftnptr_malloc (load_function_full (amodule, name, out_tinfo));
4766 mono_aot_get_trampoline (const char *name)
4768 MonoTrampInfo *out_tinfo;
4771 code = mono_aot_get_trampoline_full (name, &out_tinfo);
4772 mono_tramp_info_register (out_tinfo, NULL);
4778 read_unwind_info (MonoAotModule *amodule, MonoTrampInfo *info, const char *symbol_name)
4780 gpointer symbol_addr;
4781 guint32 uw_offset, uw_info_len;
4784 find_symbol (amodule->sofile, amodule->globals, symbol_name, &symbol_addr);
4789 uw_offset = *(guint32*)symbol_addr;
4790 uw_info = amodule->unwind_info + uw_offset;
4791 uw_info_len = decode_value (uw_info, &uw_info);
4793 info->uw_info = uw_info;
4794 info->uw_info_len = uw_info_len;
4796 /* If successful return the address of the following data */
4797 return (guint32*)symbol_addr + 1;
4801 #include <mach/mach.h>
4803 static TrampolinePage* trampoline_pages [MONO_AOT_TRAMP_NUM];
4806 read_page_trampoline_uwinfo (MonoTrampInfo *info, int tramp_type, gboolean is_generic)
4808 char symbol_name [128];
4810 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
4811 sprintf (symbol_name, "specific_trampolines_page_%s_p", is_generic ? "gen" : "sp");
4812 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
4813 sprintf (symbol_name, "rgctx_trampolines_page_%s_p", is_generic ? "gen" : "sp");
4814 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
4815 sprintf (symbol_name, "imt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
4816 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
4817 sprintf (symbol_name, "gsharedvt_trampolines_page_%s_p", is_generic ? "gen" : "sp");
4819 g_assert_not_reached ();
4821 read_unwind_info (mono_defaults.corlib->aot_module, info, symbol_name);
4824 static unsigned char*
4825 get_new_trampoline_from_page (int tramp_type)
4827 MonoAotModule *amodule;
4829 TrampolinePage *page;
4832 vm_address_t addr, taddr;
4834 vm_prot_t prot, max_prot;
4835 int psize, specific_trampoline_size;
4836 unsigned char *code;
4838 specific_trampoline_size = 2 * sizeof (gpointer);
4840 mono_aot_page_lock ();
4841 page = trampoline_pages [tramp_type];
4842 if (page && page->trampolines < page->trampolines_end) {
4843 code = page->trampolines;
4844 page->trampolines += specific_trampoline_size;
4845 mono_aot_page_unlock ();
4848 mono_aot_page_unlock ();
4849 /* the trampoline template page is in the mscorlib module */
4850 image = mono_defaults.corlib;
4853 psize = MONO_AOT_TRAMP_PAGE_SIZE;
4855 amodule = image->aot_module;
4858 if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
4859 tpage = load_function (amodule, "specific_trampolines_page");
4860 else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
4861 tpage = load_function (amodule, "rgctx_trampolines_page");
4862 else if (tramp_type == MONO_AOT_TRAMP_IMT_THUNK)
4863 tpage = load_function (amodule, "imt_trampolines_page");
4864 else if (tramp_type == MONO_AOT_TRAMP_GSHAREDVT_ARG)
4865 tpage = load_function (amodule, "gsharedvt_arg_trampolines_page");
4867 g_error ("Incorrect tramp type for trampolines page");
4869 /*g_warning ("loaded trampolines page at %x", tpage);*/
4871 /* avoid the unlikely case of looping forever */
4874 while (page == NULL && count-- > 0) {
4875 MonoTrampInfo *gen_info, *sp_info;
4878 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
4879 * while the second will contain the trampolines.
4881 ret = vm_allocate (mach_task_self (), &addr, psize * 2, VM_FLAGS_ANYWHERE);
4882 if (ret != KERN_SUCCESS) {
4883 g_error ("Cannot allocate memory for trampolines: %d", ret);
4886 /*g_warning ("allocated trampoline double page at %x", addr);*/
4887 /* replace the second page with a remapped trampoline page */
4888 taddr = addr + psize;
4889 vm_deallocate (mach_task_self (), taddr, psize);
4890 ret = vm_remap (mach_task_self (), &taddr, psize, 0, FALSE, mach_task_self(), (vm_address_t)tpage, FALSE, &prot, &max_prot, VM_INHERIT_SHARE);
4891 if (ret != KERN_SUCCESS) {
4892 /* someone else got the page, try again */
4893 vm_deallocate (mach_task_self (), addr, psize);
4896 /*g_warning ("remapped trampoline page at %x", taddr);*/
4898 mono_aot_page_lock ();
4899 page = trampoline_pages [tramp_type];
4900 /* some other thread already allocated, so use that to avoid wasting memory */
4901 if (page && page->trampolines < page->trampolines_end) {
4902 code = page->trampolines;
4903 page->trampolines += specific_trampoline_size;
4904 mono_aot_page_unlock ();
4905 vm_deallocate (mach_task_self (), addr, psize);
4906 vm_deallocate (mach_task_self (), taddr, psize);
4909 page = (TrampolinePage*)addr;
4910 page->next = trampoline_pages [tramp_type];
4911 trampoline_pages [tramp_type] = page;
4912 page->trampolines = (void*)(taddr + amodule->info.tramp_page_code_offsets [tramp_type]);
4913 page->trampolines_end = (void*)(taddr + psize - 64);
4914 code = page->trampolines;
4915 page->trampolines += specific_trampoline_size;
4916 mono_aot_page_unlock ();
4918 /* Register the generic part at the beggining of the trampoline page */
4919 gen_info = mono_tramp_info_create (NULL, (guint8*)taddr, amodule->info.tramp_page_code_offsets [tramp_type], NULL, NULL);
4920 read_page_trampoline_uwinfo (gen_info, tramp_type, TRUE);
4921 mono_tramp_info_register (gen_info, NULL);
4924 * Registering each specific trampoline produces a lot of
4925 * MonoJitInfo structures. Jump trampolines are also registered
4928 if (tramp_type != MONO_AOT_TRAMP_SPECIFIC) {
4929 /* Register the rest of the page as a single trampoline */
4930 sp_info = mono_tramp_info_create (NULL, code, page->trampolines_end - code, NULL, NULL);
4931 read_page_trampoline_uwinfo (sp_info, tramp_type, FALSE);
4932 mono_tramp_info_register (sp_info, NULL);
4936 g_error ("Cannot allocate more trampoline pages: %d", ret);
4941 static unsigned char*
4942 get_new_trampoline_from_page (int tramp_type)
4944 g_error ("Page trampolines not supported.");
4951 get_new_specific_trampoline_from_page (gpointer tramp, gpointer arg)
4956 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC);
4958 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
4961 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
4967 get_new_rgctx_trampoline_from_page (gpointer tramp, gpointer arg)
4972 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX);
4974 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
4977 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
4983 get_new_imt_trampoline_from_page (gpointer arg)
4988 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT_THUNK);
4990 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
4992 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
4998 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp, gpointer arg)
5003 code = get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG);
5005 data = (gpointer*)((char*)code - MONO_AOT_TRAMP_PAGE_SIZE);
5008 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5012 /* Return a given kind of trampoline */
5013 /* FIXME set unwind info for these trampolines */
5015 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
5018 MonoAotModule *amodule = get_mscorlib_aot_module ();
5019 int index, tramp_size;
5021 /* Currently, we keep all trampolines in the mscorlib AOT image */
5022 image = mono_defaults.corlib;
5024 *out_amodule = amodule;
5029 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5031 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5033 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type]) {
5034 g_error ("Ran out of trampolines of type %d in '%s' (%d)%s\n",
5035 tramp_type, image ? image->name : "mscorlib", amodule->info.num_trampolines [tramp_type], MONOTOUCH_TRAMPOLINES_ERROR);
5037 index = amodule->trampoline_index [tramp_type] ++;
5041 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
5043 tramp_size = amodule->info.trampoline_size [tramp_type];
5046 *out_tramp_size = tramp_size;
5048 return amodule->trampolines [tramp_type] + (index * tramp_size);
5052 no_specific_trampoline (void)
5054 g_assert_not_reached ();
5058 * Return a specific trampoline from the AOT file.
5061 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5063 MonoAotModule *amodule;
5064 guint32 got_offset, tramp_size;
5065 guint8 *code, *tramp;
5066 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
5067 static gboolean inited;
5068 static guint32 num_trampolines;
5070 if (mono_llvm_only) {
5072 return no_specific_trampoline;
5079 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
5088 if (!generic_trampolines [tramp_type]) {
5091 symbol = mono_get_generic_trampoline_name (tramp_type);
5092 generic_trampolines [tramp_type] = mono_aot_get_trampoline (symbol);
5096 tramp = generic_trampolines [tramp_type];
5099 if (USE_PAGE_TRAMPOLINES) {
5100 code = get_new_specific_trampoline_from_page (tramp, arg1);
5103 code = get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
5105 amodule->got [got_offset] = tramp;
5106 amodule->got [got_offset + 1] = arg1;
5110 *code_len = tramp_size;
5116 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5118 MonoAotModule *amodule;
5122 if (USE_PAGE_TRAMPOLINES) {
5123 code = get_new_rgctx_trampoline_from_page (addr, ctx);
5125 code = get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
5127 amodule->got [got_offset] = ctx;
5128 amodule->got [got_offset + 1] = addr;
5131 /* The caller expects an ftnptr */
5132 return mono_create_ftnptr (mono_domain_get (), code);
5136 mono_aot_get_unbox_trampoline (MonoMethod *method)
5138 guint32 method_index = mono_metadata_token_index (method->token) - 1;
5139 MonoAotModule *amodule;
5141 guint32 *ut, *ut_end, *entry;
5142 int low, high, entry_index = 0;
5143 gpointer symbol_addr;
5144 MonoTrampInfo *tinfo;
5146 if (method->is_inflated && !mono_method_is_generic_sharable_full (method, FALSE, FALSE, FALSE)) {
5147 method_index = find_aot_method (method, &amodule);
5148 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, FALSE)) {
5149 MonoMethod *shared = mini_get_shared_method_full (method, FALSE, FALSE);
5150 method_index = find_aot_method (shared, &amodule);
5152 if (method_index == 0xffffff && mono_method_is_generic_sharable_full (method, FALSE, TRUE, TRUE)) {
5153 MonoMethod *shared = mini_get_shared_method_full (method, TRUE, TRUE);
5154 method_index = find_aot_method (shared, &amodule);
5156 g_assert (method_index != 0xffffff);
5158 amodule = method->klass->image->aot_module;
5162 if (amodule->info.llvm_get_unbox_tramp) {
5163 gpointer (*get_tramp) (int) = amodule->info.llvm_get_unbox_tramp;
5164 code = get_tramp (method_index);
5170 ut = amodule->unbox_trampolines;
5171 ut_end = amodule->unbox_trampolines_end;
5173 /* Do a binary search in the sorted table */
5176 high = (ut_end - ut);
5177 while (low < high) {
5178 entry_index = (low + high) / 2;
5179 entry = &ut [entry_index];
5180 if (entry [0] < method_index) {
5181 low = entry_index + 1;
5182 } else if (entry [0] > method_index) {
5189 code = get_call_table_entry (amodule->unbox_trampoline_addresses, entry_index);
5192 tinfo = mono_tramp_info_create (NULL, code, 0, NULL, NULL);
5194 symbol_addr = read_unwind_info (amodule, tinfo, "unbox_trampoline_p");
5196 mono_tramp_info_free (tinfo);
5200 tinfo->code_size = *(guint32*)symbol_addr;
5201 mono_tramp_info_register (tinfo, NULL);
5203 /* The caller expects an ftnptr */
5204 return mono_create_ftnptr (mono_domain_get (), code);
5208 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5212 MonoAotModule *amodule = mono_defaults.corlib->aot_module;
5213 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
5214 static int count = 0;
5217 if (index >= amodule->info.num_rgctx_fetch_trampolines) {
5218 static gpointer addr;
5222 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5225 addr = load_function (amodule, "rgctx_fetch_trampoline_general");
5226 info = mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer) * 2);
5227 info [0] = GUINT_TO_POINTER (slot);
5228 info [1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
5229 code = mono_aot_get_static_rgctx_trampoline (info, addr);
5230 return mono_create_ftnptr (mono_domain_get (), code);
5233 symbol = mono_get_rgctx_fetch_trampoline_name (slot);
5234 code = load_function (mono_defaults.corlib->aot_module, symbol);
5236 /* The caller expects an ftnptr */
5237 return mono_create_ftnptr (mono_domain_get (), code);
5243 g_assert_not_reached ();
5247 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5252 int i, index, real_count;
5253 MonoAotModule *amodule;
5256 return no_imt_thunk;
5259 for (i = 0; i < count; ++i) {
5260 MonoIMTCheckItem *item = imt_entries [i];
5262 if (item->is_equals)
5266 /* Save the entries into an array */
5267 buf = mono_domain_alloc (domain, (real_count + 1) * 2 * sizeof (gpointer));
5269 for (i = 0; i < count; ++i) {
5270 MonoIMTCheckItem *item = imt_entries [i];
5272 if (!item->is_equals)
5275 g_assert (item->key);
5277 buf [(index * 2)] = item->key;
5278 if (item->has_target_code) {
5279 gpointer *p = mono_domain_alloc (domain, sizeof (gpointer));
5280 *p = item->value.target_code;
5281 buf [(index * 2) + 1] = p;
5283 buf [(index * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
5287 buf [(index * 2)] = NULL;
5288 buf [(index * 2) + 1] = fail_tramp;
5290 if (USE_PAGE_TRAMPOLINES) {
5291 code = get_new_imt_trampoline_from_page (buf);
5293 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK, 1, &amodule, &got_offset, NULL);
5295 amodule->got [got_offset] = buf;
5302 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg, gpointer addr)
5304 MonoAotModule *amodule;
5308 if (USE_PAGE_TRAMPOLINES) {
5309 code = get_new_gsharedvt_arg_trampoline_from_page (addr, arg);
5311 code = get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG, 2, &amodule, &got_offset, NULL);
5313 amodule->got [got_offset] = arg;
5314 amodule->got [got_offset + 1] = addr;
5317 /* The caller expects an ftnptr */
5318 return mono_create_ftnptr (mono_domain_get (), code);
5322 * mono_aot_set_make_unreadable:
5324 * Set whenever to make all mmaped memory unreadable. In conjuction with a
5325 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
5328 mono_aot_set_make_unreadable (gboolean unreadable)
5332 make_unreadable = unreadable;
5334 if (make_unreadable && !inited) {
5335 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT | MONO_COUNTER_INT, &n_pagefaults);
5340 MonoAotModule *module;
5345 find_map (gpointer key, gpointer value, gpointer user_data)
5347 MonoAotModule *module = (MonoAotModule*)value;
5348 FindMapUserData *data = (FindMapUserData*)user_data;
5351 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
5352 data->module = module;
5355 static MonoAotModule*
5356 find_module_for_addr (void *ptr)
5358 FindMapUserData data;
5360 if (!make_unreadable)
5364 data.ptr = (guint8*)ptr;
5367 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
5374 * mono_aot_is_pagefault:
5376 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
5377 * within memory allocated by this module.
5380 mono_aot_is_pagefault (void *ptr)
5382 if (!make_unreadable)
5386 * Not signal safe, but SIGSEGV's are synchronous, and
5387 * this is only turned on by a MONO_DEBUG option.
5389 return find_module_for_addr (ptr) != NULL;
5393 * mono_aot_handle_pagefault:
5395 * Handle a pagefault caused by an unreadable page by making it readable again.
5398 mono_aot_handle_pagefault (void *ptr)
5400 #ifndef PLATFORM_WIN32
5401 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), mono_pagesize ());
5405 res = mono_mprotect (start, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_WRITE|MONO_MMAP_EXEC);
5406 g_assert (res == 0);
5417 mono_aot_init (void)
5422 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
5428 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
5434 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5440 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
5446 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
5452 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
5458 mono_aot_get_plt_entry (guint8 *code)
5464 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
5470 mono_aot_patch_plt_entry (guint8 *code, guint8 *plt_entry, gpointer *got, mgreg_t *regs, guint8 *addr)
5475 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
5481 mono_aot_get_plt_info_offset (mgreg_t *regs, guint8 *code)
5483 g_assert_not_reached ();
5489 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
5491 g_assert_not_reached ();
5496 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
5498 g_assert_not_reached ();
5503 mono_aot_get_trampoline (const char *name)
5505 g_assert_not_reached ();
5510 mono_aot_get_unbox_trampoline (MonoMethod *method)
5512 g_assert_not_reached ();
5517 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
5519 g_assert_not_reached ();
5524 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
5526 g_assert_not_reached ();
5531 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
5533 g_assert_not_reached ();
5538 mono_aot_register_jit_icall (const char *name, gpointer addr)