2 * aot.c: mono Ahead of Time compiler
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Zoltan Varga (vargaz@gmail.com)
8 * (C) 2002 Ximian, Inc.
12 #include <sys/types.h>
18 #ifndef PLATFORM_WIN32
25 #ifdef HAVE_EXECINFO_H
31 #include <limits.h> /* for PAGESIZE */
36 #ifdef HAVE_SYS_WAIT_H
37 #include <sys/wait.h> /* for WIFEXITED, WEXITSTATUS */
40 #include <mono/metadata/tabledefs.h>
41 #include <mono/metadata/class.h>
42 #include <mono/metadata/object.h>
43 #include <mono/metadata/tokentype.h>
44 #include <mono/metadata/appdomain.h>
45 #include <mono/metadata/debug-helpers.h>
46 #include <mono/metadata/assembly.h>
47 #include <mono/metadata/metadata-internals.h>
48 #include <mono/metadata/marshal.h>
49 #include <mono/metadata/gc-internal.h>
50 #include <mono/utils/mono-logger.h>
51 #include "mono/utils/mono-compiler.h"
59 #define SHARED_EXT ".dll"
60 #elif (defined(__ppc__) || defined(__powerpc__) || defined(__ppc64__)) || defined(__MACH__)
61 #define SHARED_EXT ".dylib"
63 #define SHARED_EXT ".so"
66 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
67 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
69 typedef struct MonoAotModule {
71 /* Optimization flags used to compile the module */
73 /* Pointer to the Global Offset Table */
76 GHashTable *name_cache;
78 /* Maps wrapper names to their method index */
79 GHashTable *wrappers_by_name;
80 /* Maps wrapper methods to their code */
81 GHashTable *wrappers_to_code;
82 MonoAssemblyName *image_names;
84 MonoAssembly *assembly;
85 MonoImage **image_table;
86 guint32 image_table_len;
96 guint8 *plt_jump_table;
97 guint32 plt_jump_table_size;
98 guint32 *code_offsets;
100 guint32 *method_info_offsets;
102 guint32 *got_info_offsets;
104 guint32 *ex_info_offsets;
105 guint32 *method_order;
106 guint32 *method_order_end;
108 guint32 *class_info_offsets;
109 guint32 *methods_loaded;
110 guint16 *class_name_table;
111 guint8 *wrapper_info;
113 guint32 num_trampolines, first_trampoline_got_offset, trampoline_index;
118 static GHashTable *aot_modules;
119 #define mono_aot_lock() EnterCriticalSection (&aot_mutex)
120 #define mono_aot_unlock() LeaveCriticalSection (&aot_mutex)
121 static CRITICAL_SECTION aot_mutex;
124 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
125 * AOT modules registered by mono_aot_register_module ().
127 static GHashTable *static_aot_modules;
130 * Disabling this will make a copy of the loaded code and use the copy instead
131 * of the original. This will place the caller and the callee close to each
132 * other in memory, possibly improving cache behavior. Since the original
133 * code is in copy-on-write memory, this will not increase the memory usage
136 static gboolean use_loaded_code = TRUE;
139 * Whenever to AOT compile loaded assemblies on demand and store them in
140 * a cache under $HOME/.mono/aot-cache.
142 static gboolean use_aot_cache = FALSE;
145 * Whenever to spawn a new process to AOT a file or do it in-process. Only relevant if
146 * use_aot_cache is TRUE.
148 static gboolean spawn_compiler = TRUE;
151 static gint32 mono_last_aot_method = -1;
153 static gboolean make_unreadable = FALSE;
154 static guint32 n_pagefaults = 0;
155 static guint32 name_table_accesses = 0;
157 /* Used to speed-up find_aot_module () */
158 static gsize aot_code_low_addr = (gssize)-1;
159 static gsize aot_code_high_addr = 0;
161 /* Used to communicate with mono_aot_register_globals () */
162 static guint32 globals_tls_id = -1;
165 mono_aot_load_method (MonoDomain *domain, MonoAotModule *aot_module, MonoMethod *method, guint8 *code, guint8 *info, int method_index);
168 init_plt (MonoAotModule *info);
171 load_patch_info (MonoAotModule *aot_module, MonoMemPool *mp, int n_patches,
172 guint32 got_index, guint32 **got_slots,
173 guint8 *buf, guint8 **endbuf);
175 static inline gboolean
176 is_got_patch (MonoJumpInfoType patch_type)
181 /*****************************************************/
183 /*****************************************************/
186 load_image (MonoAotModule *module, int index)
188 MonoAssembly *assembly;
189 MonoImageOpenStatus status;
191 g_assert (index < module->image_table_len);
193 if (module->image_table [index])
194 return module->image_table [index];
195 if (module->out_of_date)
198 assembly = mono_assembly_load (&module->image_names [index], NULL, &status);
200 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is unusable because dependency %s is not found.\n", module->aot_name, module->image_names [index].name);
201 module->out_of_date = TRUE;
205 if (strcmp (assembly->image->guid, module->image_guids [index])) {
206 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is out of date (Older than dependency %s).\n", module->aot_name, module->image_names [index].name);
207 module->out_of_date = TRUE;
211 module->image_table [index] = assembly->image;
212 return assembly->image;
217 decode_value (guint8 *ptr, guint8 **rptr)
222 if ((b & 0x80) == 0){
225 } else if ((b & 0x40) == 0){
226 len = ((b & 0x3f) << 8 | ptr [1]);
228 } else if (b != 0xff) {
229 len = ((b & 0x1f) << 24) |
236 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
242 //printf ("DECODE: %d.\n", len);
247 decode_method_ref_2 (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
250 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
252 static MonoGenericInst*
253 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
256 MonoType **type_argv;
257 MonoGenericInst *inst;
260 type_argc = decode_value (p, &p);
261 type_argv = g_new0 (MonoType*, type_argc);
263 for (i = 0; i < type_argc; ++i) {
264 MonoClass *pclass = decode_klass_ref (module, p, &p);
269 type_argv [i] = &pclass->byval_arg;
272 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
281 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
284 MonoClass *klass, *eklass;
288 token = decode_value (p, &p);
293 if (mono_metadata_token_table (token) == 0) {
294 image = load_image (module, decode_value (p, &p));
297 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF + token);
298 } else if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
299 if (token == MONO_TOKEN_TYPE_SPEC) {
300 MonoTypeEnum type = decode_value (p, &p);
302 if (type == MONO_TYPE_GENERICINST) {
304 MonoGenericContext ctx;
307 gclass = decode_klass_ref (module, p, &p);
308 g_assert (gclass->generic_container);
310 memset (&ctx, 0, sizeof (ctx));
311 ctx.class_inst = decode_generic_inst (module, p, &p);
314 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
315 klass = mono_class_from_mono_type (type);
316 mono_metadata_free_type (type);
317 } else if ((type == MONO_TYPE_VAR) || (type == MONO_TYPE_MVAR)) {
320 MonoGenericContainer *container;
322 // FIXME: Maybe use types directly to avoid
323 // the overhead of creating MonoClass-es
325 // FIXME: Memory management
326 t = g_new0 (MonoType, 1);
328 t->data.generic_param = g_new0 (MonoGenericParam, 1);
329 t->data.generic_param->num = decode_value (p, &p);
330 t->data.generic_param->name = "T";
332 is_method = decode_value (p, &p);
334 MonoMethod *method_def = decode_method_ref_2 (module, p, &p);
337 g_free (t->data.generic_param);
342 container = mono_method_get_generic_container (method_def);
344 MonoClass *class_def = decode_klass_ref (module, p, &p);
347 g_free (t->data.generic_param);
352 container = class_def->generic_container;
355 g_assert (container);
356 t->data.generic_param->owner = container;
358 klass = mono_class_from_mono_type (t);
360 g_assert_not_reached ();
363 image = load_image (module, decode_value (p, &p));
366 klass = mono_class_get (image, token);
368 } else if (token == MONO_TOKEN_TYPE_DEF) {
370 image = load_image (module, decode_value (p, &p));
373 rank = decode_value (p, &p);
374 eklass = decode_klass_ref (module, p, &p);
375 klass = mono_array_class_get (eklass, rank);
377 g_assert_not_reached ();
380 mono_class_init (klass);
386 static MonoClassField*
387 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
389 MonoClass *klass = decode_klass_ref (module, buf, &buf);
396 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
400 return mono_class_get_field (klass, token);
406 * Decode a method reference, and return its image and token. This avoids loading
407 * metadata for the method if the caller does not need it. If the method has no token,
408 * then it is loaded from metadata and METHOD is set to the method instance.
411 decode_method_ref (MonoAotModule *module, guint32 *token, MonoMethod **method, gboolean *no_aot_trampoline, guint8 *buf, guint8 **endbuf)
413 guint32 image_index, value;
419 if (no_aot_trampoline)
420 *no_aot_trampoline = FALSE;
422 value = decode_value (p, &p);
423 image_index = value >> 24;
425 if (image_index == 252) {
426 if (no_aot_trampoline)
427 *no_aot_trampoline = TRUE;
428 value = decode_value (p, &p);
429 image_index = value >> 24;
432 if (image_index == 253) {
434 guint32 wrapper_type;
436 wrapper_type = decode_value (p, &p);
439 image = mono_defaults.corlib;
441 switch (wrapper_type) {
442 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
443 MonoMethod *m = decode_method_ref_2 (module, p, &p);
447 mono_class_init (m->klass);
448 *method = mono_marshal_get_remoting_invoke_with_check (m);
451 case MONO_WRAPPER_PROXY_ISINST: {
452 MonoClass *klass = decode_klass_ref (module, p, &p);
455 *method = mono_marshal_get_proxy_cancast (klass);
458 case MONO_WRAPPER_LDFLD:
459 case MONO_WRAPPER_LDFLDA:
460 case MONO_WRAPPER_STFLD:
461 case MONO_WRAPPER_ISINST: {
462 MonoClass *klass = decode_klass_ref (module, p, &p);
465 if (wrapper_type == MONO_WRAPPER_LDFLD)
466 *method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
467 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
468 *method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
469 else if (wrapper_type == MONO_WRAPPER_STFLD)
470 *method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
471 else if (wrapper_type == MONO_WRAPPER_ISINST)
472 *method = mono_marshal_get_isinst (klass);
474 g_assert_not_reached ();
477 case MONO_WRAPPER_LDFLD_REMOTE:
478 *method = mono_marshal_get_ldfld_remote_wrapper (NULL);
480 case MONO_WRAPPER_STFLD_REMOTE:
481 *method = mono_marshal_get_stfld_remote_wrapper (NULL);
483 case MONO_WRAPPER_ALLOC: {
484 int atype = decode_value (p, &p);
486 *method = mono_gc_get_managed_allocator_by_type (atype);
489 case MONO_WRAPPER_STELEMREF:
490 *method = mono_marshal_get_stelemref ();
492 case MONO_WRAPPER_STATIC_RGCTX_INVOKE: {
493 MonoMethod *m = decode_method_ref_2 (module, p, &p);
497 *method = mono_marshal_get_static_rgctx_invoke (m);
501 g_assert_not_reached ();
503 } else if (image_index == 255) {
505 image_index = decode_value (p, &p);
506 *token = decode_value (p, &p);
508 image = load_image (module, image_index);
511 } else if (image_index == 254) {
512 /* Method on generic instance */
514 MonoGenericContext ctx;
515 gboolean has_class_inst, has_method_inst;
518 * These methods do not have a token which resolves them, so we
519 * resolve them immediately.
521 klass = decode_klass_ref (module, p, &p);
525 image_index = decode_value (p, &p);
526 *token = decode_value (p, &p);
528 image = load_image (module, image_index);
532 *method = mono_get_method_full (image, *token, NULL, NULL);
536 memset (&ctx, 0, sizeof (ctx));
538 if (FALSE && klass->generic_class) {
539 ctx.class_inst = klass->generic_class->context.class_inst;
540 ctx.method_inst = NULL;
542 *method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
545 memset (&ctx, 0, sizeof (ctx));
547 // FIXME: Memory management
548 has_class_inst = decode_value (p, &p);
549 if (has_class_inst) {
550 ctx.class_inst = decode_generic_inst (module, p, &p);
554 has_method_inst = decode_value (p, &p);
555 if (has_method_inst) {
556 ctx.method_inst = decode_generic_inst (module, p, &p);
557 if (!ctx.method_inst)
561 *method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
563 *token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
565 image = load_image (module, image_index);
576 * decode_method_ref_2:
578 * Similar to decode_method_ref, but resolve and return the method itself.
581 decode_method_ref_2 (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
585 MonoImage *image = decode_method_ref (module, &token, &method, NULL, buf, endbuf);
591 return mono_get_method (image, token, NULL);
596 make_writable (guint8* addr, guint32 len)
598 #ifndef PLATFORM_WIN32
603 g_error ("Attempt to make AOT memory writable while running in aot-only mode.\n");
605 page_start = (guint8 *) (((gssize) (addr)) & ~ (PAGESIZE - 1));
606 pages = (addr + len - page_start + PAGESIZE - 1) / PAGESIZE;
607 err = mprotect (page_start, pages * PAGESIZE, PROT_READ | PROT_WRITE | PROT_EXEC);
612 g_assert (VirtualProtect (addr, len, PAGE_EXECUTE_READWRITE, &oldp) != 0);
618 create_cache_structure (void)
624 home = g_get_home_dir ();
628 tmp = g_build_filename (home, ".mono", NULL);
629 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
630 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
631 #ifdef PLATFORM_WIN32
634 err = mkdir (tmp, 0777);
637 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
643 tmp = g_build_filename (home, ".mono", "aot-cache", NULL);
644 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
645 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
646 #ifdef PLATFORM_WIN32
649 err = mkdir (tmp, 0777);
652 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
661 * load_aot_module_from_cache:
663 * Experimental code to AOT compile loaded assemblies on demand.
666 * - Add environment variable MONO_AOT_CACHE_OPTIONS
667 * - Add options for controlling the cache size
668 * - Handle full cache by deleting old assemblies lru style
669 * - Add options for excluding assemblies during development
670 * - Maybe add a threshold after an assembly is AOT compiled
671 * - invoking a new mono process is a security risk
672 * - recompile the AOT module if one of its dependencies changes
675 load_aot_module_from_cache (MonoAssembly *assembly, char **aot_name)
677 char *fname, *cmd, *tmp2, *aot_options;
686 if (assembly->image->dynamic)
689 create_cache_structure ();
691 home = g_get_home_dir ();
693 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, assembly->image->guid, SHARED_EXT);
694 fname = g_build_filename (home, ".mono", "aot-cache", tmp2, NULL);
698 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT trying to load from cache: '%s'.", fname);
699 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
702 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT not found.");
704 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT precompiling assembly '%s'... ", assembly->image->name);
706 aot_options = g_strdup_printf ("outfile=%s", fname);
708 if (spawn_compiler) {
709 /* FIXME: security */
710 /* FIXME: Has to pass the assembly loading path to the child process */
711 cmd = g_strdup_printf ("mono -O=all --aot=%s %s", aot_options, assembly->image->name);
713 res = g_spawn_command_line_sync (cmd, &out, &err, &exit_status, NULL);
715 #if !defined(PLATFORM_WIN32) && !defined(__ppc__) && !defined(__ppc64__) && !defined(__powerpc__)
717 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
718 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed: %s.", err);
720 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
727 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
729 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed.");
731 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
735 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
737 g_free (aot_options);
744 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
750 for (i = 0; globals [i]; i+= 2) {
751 if (strcmp (globals [i], name) == 0) {
752 *value = globals [i + 1];
757 mono_dl_symbol (module, name, value);
762 load_aot_module (MonoAssembly *assembly, gpointer user_data)
765 MonoAotModule *amodule;
767 gboolean usable = TRUE;
768 char *saved_guid = NULL;
769 char *aot_version = NULL;
770 char *runtime_version;
771 char *opt_flags = NULL;
773 gboolean full_aot = FALSE;
774 gpointer *plt_jump_table_addr = NULL;
775 guint32 *plt_jump_table_size = NULL;
776 guint32 *trampolines_info = NULL;
777 gpointer *got_addr = NULL;
778 gpointer *got = NULL;
779 guint32 *got_size_ptr = NULL;
782 if (mono_compile_aot)
785 if (assembly->image->aot_module)
787 * Already loaded. This can happen because the assembly loading code might invoke
788 * the assembly load hooks multiple times for the same assembly.
792 if (assembly->image->dynamic)
796 if (static_aot_modules)
797 globals = g_hash_table_lookup (static_aot_modules, assembly->aname.name);
803 /* Statically linked AOT module */
805 aot_name = g_strdup_printf ("%s", assembly->aname.name);
806 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
808 TlsSetValue (globals_tls_id, NULL);
811 sofile = load_aot_module_from_cache (assembly, &aot_name);
814 aot_name = g_strdup_printf ("%s%s", assembly->image->name, SHARED_EXT);
816 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
819 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed to load AOT module %s: %s\n", aot_name, err);
825 * If the image was compiled in no-dlsym mode, it contains no global symbols,
826 * instead it contains an ELF ctor function which is called by dlopen () which
827 * in turn calls mono_aot_register_globals () to register a table which contains
828 * the name and address of the globals.
830 globals = TlsGetValue (globals_tls_id);
831 TlsSetValue (globals_tls_id, NULL);
834 if (!sofile && !globals) {
836 fprintf (stderr, "Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
843 find_symbol (sofile, globals, "mono_assembly_guid", (gpointer *) &saved_guid);
844 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &aot_version);
845 find_symbol (sofile, globals, "mono_aot_opt_flags", (gpointer *)&opt_flags);
846 find_symbol (sofile, globals, "mono_runtime_version", (gpointer *)&runtime_version);
848 if (!aot_version || strcmp (aot_version, MONO_AOT_FILE_VERSION)) {
849 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s has wrong file format version (expected %s got %s)\n", aot_name, MONO_AOT_FILE_VERSION, aot_version);
853 if (!saved_guid || strcmp (assembly->image->guid, saved_guid)) {
854 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is out of date.\n", aot_name);
859 if (!runtime_version || ((strlen (runtime_version) > 0 && strcmp (runtime_version, FULL_VERSION)))) {
860 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is compiled against runtime version %s while this runtime has version %s.\n", aot_name, runtime_version, FULL_VERSION);
867 find_symbol (sofile, globals, "mono_aot_full_aot", (gpointer *)&full_aot_str);
869 if (full_aot_str && !strcmp (full_aot_str, "TRUE"))
873 if (mono_aot_only && !full_aot) {
874 fprintf (stderr, "Can't use AOT image '%s' in aot-only mode because it is not compiled with --aot=full.\n", aot_name);
877 if (!mono_aot_only && full_aot) {
878 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is compiled with --aot=full.\n", aot_name);
884 fprintf (stderr, "Failed to load AOT module '%s' while running in aot-only mode.\n", aot_name);
889 mono_dl_close (sofile);
890 assembly->image->aot_module = NULL;
894 find_symbol (sofile, globals, "got_addr", (gpointer *)&got_addr);
896 got = (gpointer*)*got_addr;
898 find_symbol (sofile, globals, "got_size", (gpointer *)&got_size_ptr);
899 g_assert (got_size_ptr);
901 amodule = g_new0 (MonoAotModule, 1);
902 amodule->aot_name = aot_name;
903 amodule->assembly = assembly;
905 amodule->got_size = *got_size_ptr;
906 amodule->got [0] = assembly->image;
907 amodule->globals = globals;
908 amodule->sofile = sofile;
910 sscanf (opt_flags, "%d", &amodule->opts);
912 /* Read image table */
914 guint32 table_len, i;
917 find_symbol (sofile, globals, "mono_image_table", (gpointer *)&table);
920 table_len = *(guint32*)table;
921 table += sizeof (guint32);
922 amodule->image_table = g_new0 (MonoImage*, table_len);
923 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
924 amodule->image_guids = g_new0 (char*, table_len);
925 amodule->image_table_len = table_len;
926 for (i = 0; i < table_len; ++i) {
927 MonoAssemblyName *aname = &(amodule->image_names [i]);
929 aname->name = g_strdup (table);
930 table += strlen (table) + 1;
931 amodule->image_guids [i] = g_strdup (table);
932 table += strlen (table) + 1;
934 aname->culture = g_strdup (table);
935 table += strlen (table) + 1;
936 memcpy (aname->public_key_token, table, strlen (table) + 1);
937 table += strlen (table) + 1;
939 table = ALIGN_PTR_TO (table, 8);
940 aname->flags = *(guint32*)table;
942 aname->major = *(guint32*)table;
944 aname->minor = *(guint32*)table;
946 aname->build = *(guint32*)table;
948 aname->revision = *(guint32*)table;
953 /* Read method and method_info tables */
954 find_symbol (sofile, globals, "method_offsets", (gpointer*)&amodule->code_offsets);
955 find_symbol (sofile, globals, "methods", (gpointer*)&amodule->code);
956 find_symbol (sofile, globals, "methods_end", (gpointer*)&amodule->code_end);
957 find_symbol (sofile, globals, "method_info_offsets", (gpointer*)&amodule->method_info_offsets);
958 find_symbol (sofile, globals, "method_info", (gpointer*)&amodule->method_info);
959 find_symbol (sofile, globals, "ex_info_offsets", (gpointer*)&amodule->ex_info_offsets);
960 find_symbol (sofile, globals, "ex_info", (gpointer*)&amodule->ex_info);
961 find_symbol (sofile, globals, "method_order", (gpointer*)&amodule->method_order);
962 find_symbol (sofile, globals, "method_order_end", (gpointer*)&amodule->method_order_end);
963 find_symbol (sofile, globals, "class_info", (gpointer*)&amodule->class_info);
964 find_symbol (sofile, globals, "class_info_offsets", (gpointer*)&amodule->class_info_offsets);
965 find_symbol (sofile, globals, "class_name_table", (gpointer *)&amodule->class_name_table);
966 find_symbol (sofile, globals, "got_info", (gpointer*)&amodule->got_info);
967 find_symbol (sofile, globals, "got_info_offsets", (gpointer*)&amodule->got_info_offsets);
968 find_symbol (sofile, globals, "wrapper_info", (gpointer*)&amodule->wrapper_info);
969 find_symbol (sofile, globals, "trampolines", (gpointer*)&amodule->trampolines);
970 find_symbol (sofile, globals, "mem_end", (gpointer*)&amodule->mem_end);
972 amodule->mem_begin = amodule->code;
974 find_symbol (sofile, globals, "plt", (gpointer*)&amodule->plt);
975 find_symbol (sofile, globals, "plt_end", (gpointer*)&amodule->plt_end);
976 find_symbol (sofile, globals, "plt_info", (gpointer*)&amodule->plt_info);
978 find_symbol (sofile, globals, "plt_jump_table_addr", (gpointer *)&plt_jump_table_addr);
979 g_assert (plt_jump_table_addr);
980 amodule->plt_jump_table = (guint8*)*plt_jump_table_addr;
981 g_assert (amodule->plt_jump_table);
983 find_symbol (sofile, globals, "plt_jump_table_size", (gpointer *)&plt_jump_table_size);
984 g_assert (plt_jump_table_size);
985 amodule->plt_jump_table_size = *plt_jump_table_size;
987 find_symbol (sofile, globals, "trampolines_info", (gpointer *)&trampolines_info);
988 if (trampolines_info) {
989 amodule->num_trampolines = trampolines_info [0];
990 amodule->first_trampoline_got_offset = trampolines_info [1];
993 if (make_unreadable) {
994 #ifndef PLATFORM_WIN32
999 addr = amodule->mem_begin;
1000 len = amodule->mem_end - amodule->mem_begin;
1002 /* Round down in both directions to avoid modifying data which is not ours */
1003 page_start = (guint8 *) (((gssize) (addr)) & ~ (PAGESIZE - 1)) + PAGESIZE;
1004 pages = ((addr + len - page_start + PAGESIZE - 1) / PAGESIZE) - 1;
1005 err = mprotect (page_start, pages * PAGESIZE, 0);
1006 g_assert (err == 0);
1012 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->code);
1013 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->code_end);
1015 g_hash_table_insert (aot_modules, assembly, amodule);
1018 mono_jit_info_add_aot_module (assembly->image, amodule->code, amodule->code_end);
1020 assembly->image->aot_module = amodule;
1023 * Since we store methoddef and classdef tokens when referring to methods/classes in
1024 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
1025 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
1026 * non-lazily, since we can't handle out-of-date errors later.
1028 for (i = 0; i < amodule->image_table_len; ++i)
1029 load_image (amodule, i);
1031 if (amodule->out_of_date) {
1032 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);
1033 if (mono_aot_only) {
1034 fprintf (stderr, "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);
1039 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT loaded AOT Module for %s.\n", assembly->image->name);
1043 * mono_aot_register_globals:
1045 * This is called by the ctor function in AOT images compiled with the
1046 * 'no-dlsym' option.
1049 mono_aot_register_globals (gpointer *globals)
1051 TlsSetValue (globals_tls_id, globals);
1055 * mono_aot_register_module:
1057 * This should be called by embedding code to register AOT modules statically linked
1058 * into the executable. AOT_INFO should be the value of the
1059 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
1062 mono_aot_register_module (gpointer *aot_info)
1070 /* Determine the assembly name */
1071 find_symbol (NULL, globals, "mono_aot_assembly_name", (gpointer*)&aname);
1074 /* This could be called before startup */
1078 if (!static_aot_modules)
1079 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
1081 g_hash_table_insert (static_aot_modules, aname, globals);
1088 mono_aot_init (void)
1090 InitializeCriticalSection (&aot_mutex);
1091 aot_modules = g_hash_table_new (NULL, NULL);
1092 globals_tls_id = TlsAlloc ();
1094 mono_install_assembly_load_hook (load_aot_module, NULL);
1096 if (getenv ("MONO_LASTAOT"))
1097 mono_last_aot_method = atoi (getenv ("MONO_LASTAOT"));
1098 if (getenv ("MONO_AOT_CACHE"))
1099 use_aot_cache = TRUE;
1103 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
1107 info->vtable_size = decode_value (buf, &buf);
1108 if (info->vtable_size == -1)
1111 flags = decode_value (buf, &buf);
1112 info->ghcimpl = (flags >> 0) & 0x1;
1113 info->has_finalize = (flags >> 1) & 0x1;
1114 info->has_cctor = (flags >> 2) & 0x1;
1115 info->has_nested_classes = (flags >> 3) & 0x1;
1116 info->blittable = (flags >> 4) & 0x1;
1117 info->has_references = (flags >> 5) & 0x1;
1118 info->has_static_refs = (flags >> 6) & 0x1;
1119 info->no_special_static_fields = (flags >> 7) & 0x1;
1121 if (info->has_cctor) {
1122 MonoImage *cctor_image = decode_method_ref (module, &info->cctor_token, NULL, NULL, buf, &buf);
1126 if (info->has_finalize) {
1127 info->finalize_image = decode_method_ref (module, &info->finalize_token, NULL, NULL, buf, &buf);
1128 if (!info->finalize_image)
1132 info->instance_size = decode_value (buf, &buf);
1133 info->class_size = decode_value (buf, &buf);
1134 info->packing_size = decode_value (buf, &buf);
1135 info->min_align = decode_value (buf, &buf);
1143 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
1146 MonoClass *klass = vtable->klass;
1147 MonoAotModule *aot_module = klass->image->aot_module;
1149 MonoCachedClassInfo class_info;
1153 gboolean no_aot_trampoline;
1155 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !aot_module)
1158 info = &aot_module->class_info [aot_module->class_info_offsets [mono_metadata_token_index (klass->type_token) - 1]];
1161 err = decode_cached_class_info (aot_module, &class_info, p, &p);
1165 for (i = 0; i < slot; ++i)
1166 decode_method_ref (aot_module, &token, NULL, NULL, p, &p);
1168 image = decode_method_ref (aot_module, &token, NULL, &no_aot_trampoline, p, &p);
1171 if (no_aot_trampoline)
1174 if (mono_metadata_token_index (token) == 0)
1177 return mono_aot_get_method_from_token (domain, image, token);
1181 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
1183 MonoAotModule *aot_module = klass->image->aot_module;
1187 if (klass->rank || !aot_module)
1190 p = (guint8*)&aot_module->class_info [aot_module->class_info_offsets [mono_metadata_token_index (klass->type_token) - 1]];
1192 err = decode_cached_class_info (aot_module, res, p, &p);
1200 * mono_aot_get_class_from_name:
1202 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
1203 * using a cache stored in the AOT file.
1204 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
1206 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
1210 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
1212 MonoAotModule *aot_module = image->aot_module;
1213 guint16 *table, *entry;
1216 char full_name_buf [1024];
1218 const char *name2, *name_space2;
1220 guint32 cols [MONO_TYPEDEF_SIZE];
1221 GHashTable *nspace_table;
1223 if (!aot_module || !aot_module->class_name_table)
1230 /* First look in the cache */
1231 if (!aot_module->name_cache)
1232 aot_module->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
1233 nspace_table = g_hash_table_lookup (aot_module->name_cache, name_space);
1235 *klass = g_hash_table_lookup (nspace_table, name);
1242 table_size = aot_module->class_name_table [0];
1243 table = aot_module->class_name_table + 1;
1245 if (name_space [0] == '\0')
1246 full_name = g_strdup_printf ("%s", name);
1248 if (strlen (name_space) + strlen (name) < 1000) {
1249 sprintf (full_name_buf, "%s.%s", name_space, name);
1250 full_name = full_name_buf;
1252 full_name = g_strdup_printf ("%s.%s", name_space, name);
1255 hash = g_str_hash (full_name) % table_size;
1256 if (full_name != full_name_buf)
1259 entry = &table [hash * 2];
1261 if (entry [0] != 0) {
1262 t = &image->tables [MONO_TABLE_TYPEDEF];
1265 guint32 index = entry [0];
1266 guint32 next = entry [1];
1267 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
1269 name_table_accesses ++;
1271 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
1273 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
1274 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
1276 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
1278 *klass = mono_class_get (image, token);
1283 nspace_table = g_hash_table_lookup (aot_module->name_cache, name_space);
1284 if (!nspace_table) {
1285 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
1286 g_hash_table_insert (aot_module->name_cache, (char*)name_space2, nspace_table);
1288 g_hash_table_insert (nspace_table, (char*)name2, *klass);
1295 entry = &table [next * 2];
1308 decode_exception_debug_info (MonoAotModule *aot_module, MonoDomain *domain,
1309 MonoMethod *method, guint8* ex_info, guint8 *code)
1313 guint code_len, used_int_regs;
1314 gboolean has_generic_jit_info;
1316 MonoMethodHeader *header;
1317 int generic_info_size;
1319 header = mono_method_get_header (method);
1321 /* Load the method info from the AOT file */
1324 code_len = decode_value (p, &p);
1325 used_int_regs = decode_value (p, &p);
1326 has_generic_jit_info = decode_value (p, &p);
1327 if (has_generic_jit_info)
1328 generic_info_size = sizeof (MonoGenericJitInfo);
1330 generic_info_size = 0;
1332 /* Exception table */
1333 if (header && header->num_clauses) {
1335 mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + (sizeof (MonoJitExceptionInfo) * header->num_clauses) + generic_info_size);
1336 jinfo->num_clauses = header->num_clauses;
1338 for (i = 0; i < header->num_clauses; ++i) {
1339 MonoExceptionClause *ec = &header->clauses [i];
1340 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
1342 ei->flags = ec->flags;
1343 ei->exvar_offset = decode_value (p, &p);
1345 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
1346 ei->data.filter = code + decode_value (p, &p);
1348 ei->data.catch_class = ec->data.catch_class;
1350 ei->try_start = code + decode_value (p, &p);
1351 ei->try_end = code + decode_value (p, &p);
1352 ei->handler_start = code + decode_value (p, &p);
1356 jinfo = mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + generic_info_size);
1358 jinfo->code_size = code_len;
1359 jinfo->used_regs = used_int_regs;
1360 jinfo->method = method;
1361 jinfo->code_start = code;
1362 jinfo->domain_neutral = 0;
1364 if (has_generic_jit_info) {
1365 MonoGenericJitInfo *gi;
1367 jinfo->has_generic_jit_info = 1;
1369 gi = mono_jit_info_get_generic_jit_info (jinfo);
1372 gi->has_this = decode_value (p, &p);
1373 gi->this_reg = decode_value (p, &p);
1374 gi->this_offset = decode_value (p, &p);
1376 /* This currently contains no data */
1377 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
1379 jinfo->method = decode_method_ref_2 (aot_module, p, &p);
1382 /* Load debug info */
1383 buf_len = decode_value (p, &p);
1384 mono_debug_add_aot_method (domain, method, code, p, buf_len);
1390 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
1392 int pos, left, right, offset, offset1, offset2, last_offset, new_offset, page_index, method_index, table_len;
1394 MonoAotModule *aot_module = image->aot_module;
1397 guint8 *code, *ex_info;
1398 guint32 *table, *ptr;
1404 if (domain != mono_get_root_domain ())
1408 offset = (guint8*)addr - aot_module->code;
1410 /* First search through the index */
1411 ptr = aot_module->method_order;
1416 if (*ptr == 0xffffff)
1420 while (*ptr != 0xffffff) {
1421 guint32 method_index = ptr [0];
1422 new_offset = aot_module->code_offsets [method_index];
1424 if (offset >= last_offset && offset < new_offset) {
1430 last_offset = new_offset;
1434 /* Skip rest of index */
1435 while (*ptr != 0xffffff)
1440 table_len = aot_module->method_order_end - table;
1442 g_assert (table <= aot_module->method_order_end);
1445 left = (page_index * 1024);
1446 right = left + 1024;
1448 if (right > table_len)
1451 offset1 = aot_module->code_offsets [table [left]];
1452 g_assert (offset1 <= offset);
1454 //printf ("Found in index: 0x%x 0x%x 0x%x\n", offset, last_offset, new_offset);
1457 //printf ("Not found in index: 0x%x\n", offset);
1462 /* Binary search inside the method_order table to find the method */
1464 pos = (left + right) / 2;
1466 g_assert (table + pos <= aot_module->method_order_end);
1468 //printf ("Pos: %5d < %5d < %5d Offset: 0x%05x < 0x%05x < 0x%05x\n", left, pos, right, aot_module->code_offsets [table [left]], offset, aot_module->code_offsets [table [right]]);
1470 offset1 = aot_module->code_offsets [table [pos]];
1471 if (table + pos + 1 >= aot_module->method_order_end)
1472 offset2 = aot_module->code_end - aot_module->code;
1474 offset2 = aot_module->code_offsets [table [pos + 1]];
1476 if (offset < offset1)
1478 else if (offset >= offset2)
1484 method_index = table [pos];
1486 /* Might be a wrapper */
1487 if (aot_module->wrappers) {
1489 method = g_hash_table_lookup (aot_module->wrappers, GUINT_TO_POINTER (method_index));
1496 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
1497 method = mono_get_method (image, token, NULL);
1503 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
1505 code = &aot_module->code [aot_module->code_offsets [method_index]];
1506 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [method_index]];
1508 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
1510 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
1511 g_assert ((guint8*)addr < (guint8*)jinfo->code_start + jinfo->code_size);
1513 /* Add it to the normal JitInfo tables */
1514 mono_jit_info_table_add (domain, jinfo);
1519 /* Keep it in sync with the version in aot-compiler.c */
1520 static inline gboolean
1521 is_shared_got_patch (MonoJumpInfo *patch_info)
1523 switch (patch_info->type) {
1524 case MONO_PATCH_INFO_VTABLE:
1525 case MONO_PATCH_INFO_CLASS:
1526 case MONO_PATCH_INFO_IID:
1527 case MONO_PATCH_INFO_ADJUSTED_IID:
1528 case MONO_PATCH_INFO_FIELD:
1529 case MONO_PATCH_INFO_SFLDA:
1530 case MONO_PATCH_INFO_DECLSEC:
1531 case MONO_PATCH_INFO_LDTOKEN:
1532 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1533 case MONO_PATCH_INFO_RVA:
1534 case MONO_PATCH_INFO_METHODCONST:
1542 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
1550 case MONO_PATCH_INFO_METHOD:
1551 case MONO_PATCH_INFO_METHOD_JUMP:
1552 case MONO_PATCH_INFO_ICALL_ADDR:
1553 case MONO_PATCH_INFO_METHOD_RGCTX: {
1556 gboolean no_aot_trampoline;
1558 image = decode_method_ref (aot_module, &token, &method, &no_aot_trampoline, p, &p);
1562 #ifdef MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN
1563 if (!method && !mono_aot_only && !no_aot_trampoline && (ji->type == MONO_PATCH_INFO_METHOD) && (mono_metadata_token_table (token) == MONO_TABLE_METHOD)) {
1564 ji->data.target = mono_create_jit_trampoline_from_token (image, token);
1565 ji->type = MONO_PATCH_INFO_ABS;
1569 ji->data.method = method;
1571 ji->data.method = mono_get_method (image, token, NULL);
1572 g_assert (ji->data.method);
1573 mono_class_init (ji->data.method->klass);
1576 ji->data.method = mono_get_method (image, token, NULL);
1577 g_assert (ji->data.method);
1578 mono_class_init (ji->data.method->klass);
1583 case MONO_PATCH_INFO_INTERNAL_METHOD:
1584 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
1585 guint32 len = decode_value (p, &p);
1587 ji->data.name = (char*)p;
1591 case MONO_PATCH_INFO_METHODCONST:
1593 ji->data.method = decode_method_ref_2 (aot_module, p, &p);
1594 if (!ji->data.method)
1597 case MONO_PATCH_INFO_VTABLE:
1598 case MONO_PATCH_INFO_CLASS:
1599 case MONO_PATCH_INFO_IID:
1600 case MONO_PATCH_INFO_ADJUSTED_IID:
1602 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1603 if (!ji->data.klass)
1606 case MONO_PATCH_INFO_CLASS_INIT:
1607 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
1608 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1609 if (!ji->data.klass)
1612 case MONO_PATCH_INFO_IMAGE:
1613 ji->data.image = load_image (aot_module, decode_value (p, &p));
1614 if (!ji->data.image)
1617 case MONO_PATCH_INFO_FIELD:
1618 case MONO_PATCH_INFO_SFLDA:
1620 ji->data.field = decode_field_info (aot_module, p, &p);
1621 if (!ji->data.field)
1624 case MONO_PATCH_INFO_SWITCH:
1625 ji->data.table = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
1626 ji->data.table->table_size = decode_value (p, &p);
1627 table = g_new (gpointer, ji->data.table->table_size);
1628 ji->data.table->table = (MonoBasicBlock**)table;
1629 for (i = 0; i < ji->data.table->table_size; i++)
1630 table [i] = (gpointer)(gssize)decode_value (p, &p);
1632 case MONO_PATCH_INFO_R4: {
1635 ji->data.target = mono_mempool_alloc0 (mp, sizeof (float));
1636 val = decode_value (p, &p);
1637 *(float*)ji->data.target = *(float*)&val;
1640 case MONO_PATCH_INFO_R8: {
1643 ji->data.target = mono_mempool_alloc0 (mp, sizeof (double));
1645 val [0] = decode_value (p, &p);
1646 val [1] = decode_value (p, &p);
1647 *(double*)ji->data.target = *(double*)val;
1650 case MONO_PATCH_INFO_LDSTR:
1651 image = load_image (aot_module, decode_value (p, &p));
1654 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
1656 case MONO_PATCH_INFO_RVA:
1657 case MONO_PATCH_INFO_DECLSEC:
1658 case MONO_PATCH_INFO_LDTOKEN:
1659 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1661 image = load_image (aot_module, decode_value (p, &p));
1664 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
1666 case MONO_PATCH_INFO_EXC_NAME:
1667 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1668 if (!ji->data.klass)
1670 ji->data.name = ji->data.klass->name;
1672 case MONO_PATCH_INFO_METHOD_REL:
1673 ji->data.offset = decode_value (p, &p);
1675 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
1676 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
1678 case MONO_PATCH_INFO_RGCTX_FETCH: {
1680 MonoJumpInfoRgctxEntry *entry;
1682 entry = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
1683 entry->method = decode_method_ref_2 (aot_module, p, &p);
1684 entry->in_mrgctx = decode_value (p, &p);
1685 entry->info_type = decode_value (p, &p);
1686 entry->data = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
1687 entry->data->type = decode_value (p, &p);
1689 res = decode_patch (aot_module, mp, entry->data, p, &p);
1692 ji->data.rgctx_entry = entry;
1696 g_warning ("unhandled type %d", ji->type);
1697 g_assert_not_reached ();
1709 decode_got_entry (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf, guint32 *got_offset)
1715 if (is_shared_got_patch (ji)) {
1716 *got_offset = decode_value (p, &p);
1718 if (aot_module->got [*got_offset]) {
1719 /* Already loaded */
1720 //printf ("HIT!\n");
1722 shared_p = aot_module->got_info + aot_module->got_info_offsets [*got_offset];
1724 res = decode_patch (aot_module, mp, ji, shared_p, &shared_p);
1729 res = decode_patch (aot_module, mp, ji, p, &p);
1738 static MonoJumpInfo*
1739 load_patch_info (MonoAotModule *aot_module, MonoMemPool *mp, int n_patches,
1740 guint32 got_index, guint32 **got_slots,
1741 guint8 *buf, guint8 **endbuf)
1743 MonoJumpInfo *patches;
1744 MonoJumpInfo *patch_info = NULL;
1746 guint32 last_offset;
1751 /* First load the type + offset table */
1753 patches = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
1755 for (pindex = 0; pindex < n_patches; ++pindex) {
1756 MonoJumpInfo *ji = &patches [pindex];
1761 //printf ("T: %d O: %d.\n", ji->type, ji->ip.i);
1762 ji->next = patch_info;
1766 *got_slots = g_malloc (sizeof (guint32) * n_patches);
1767 memset (*got_slots, 0xff, sizeof (guint32) * n_patches);
1769 /* Then load the other data */
1770 for (pindex = 0; pindex < n_patches; ++pindex) {
1771 MonoJumpInfo *ji = &patches [pindex];
1773 if (!decode_got_entry (aot_module, mp, ji, p, &p, (*got_slots) + pindex))
1776 if ((*got_slots) [pindex] == 0xffffffff)
1777 (*got_slots) [pindex] = got_index ++;
1784 g_free (*got_slots);
1791 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
1794 * Jump addresses cannot be patched by the trampoline code since it
1795 * does not have access to the caller's address. Instead, we collect
1796 * the addresses of the GOT slots pointing to a method, and patch
1797 * them after the method has been compiled.
1799 MonoJitDomainInfo *info = domain_jit_info (domain);
1802 mono_domain_lock (domain);
1803 if (!info->jump_target_got_slot_hash)
1804 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
1805 list = g_hash_table_lookup (info->jump_target_got_slot_hash, method);
1806 list = g_slist_prepend (list, got_slot);
1807 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
1808 mono_domain_unlock (domain);
1812 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
1814 MonoClass *klass = method->klass;
1815 guint32 method_index = mono_metadata_token_index (method->token) - 1;
1816 guint8 *code, *info;
1817 MonoAotModule *aot_module = klass->image->aot_module;
1822 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE)
1825 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
1826 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1827 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
1828 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
1831 g_assert (klass->inited);
1833 if ((domain != mono_get_root_domain ()) && (!(aot_module->opts & MONO_OPT_SHARED)))
1834 /* Non shared AOT code can't be used in other appdomains */
1837 if (aot_module->out_of_date)
1840 if (method->is_inflated) {
1841 if (!mono_method_is_generic_sharable_impl (method, FALSE))
1843 method = mono_method_get_declaring_generic_method (method);
1846 if (!method->token) {
1850 if (!method->wrapper_type || !aot_module->wrapper_info)
1855 /* Avoid doing a hash table lookup using strings if possible */
1856 if (!aot_module->wrappers_to_code)
1857 aot_module->wrappers_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
1858 code = g_hash_table_lookup (aot_module->wrappers_to_code, method);
1864 /* Try to find the wrapper among the wrapper info */
1865 /* FIXME: This is a hack to work around the fact that runtime invoke wrappers get assigned to some random class */
1866 if (method->wrapper_type == MONO_WRAPPER_RUNTIME_INVOKE) {
1867 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1868 full_name = g_strdup_printf ("(wrapper runtime-invoke):%s (%s)", method->name, tmpsig);
1871 full_name = mono_method_full_name (method, TRUE);
1874 /* Create a hash table to avoid repeated linear searches */
1875 if (!aot_module->wrappers_by_name) {
1876 aot_module->wrappers_by_name = g_hash_table_new (g_str_hash, g_str_equal);
1877 p = (char*)aot_module->wrapper_info;
1881 end = p + strlen (p) + 1;
1882 end = ALIGN_PTR_TO (end, 4);
1883 method_index = *(guint32*)end;
1885 /* The + 1 is used to distinguish a 0 index from a not-found one */
1886 g_hash_table_insert (aot_module->wrappers_by_name, p, GUINT_TO_POINTER (method_index + 1));
1890 method_index = GPOINTER_TO_UINT (g_hash_table_lookup (aot_module->wrappers_by_name, full_name));
1899 /* Needed by find_jit_info */
1901 if (!aot_module->wrappers)
1902 aot_module->wrappers = g_hash_table_new (NULL, NULL);
1903 g_hash_table_insert (aot_module->wrappers, GUINT_TO_POINTER (method_index), method);
1907 if (aot_module->code_offsets [method_index] == 0xffffffff) {
1908 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
1909 char *full_name = mono_method_full_name (method, TRUE);
1910 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.\n", full_name);
1916 code = &aot_module->code [aot_module->code_offsets [method_index]];
1917 info = &aot_module->method_info [aot_module->method_info_offsets [method_index]];
1920 if (!aot_module->methods_loaded)
1921 aot_module->methods_loaded = g_new0 (guint32, klass->image->tables [MONO_TABLE_METHOD].rows + 1);
1924 if ((aot_module->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
1927 if (mono_last_aot_method != -1) {
1928 if (mono_jit_stats.methods_aot > mono_last_aot_method)
1931 if (mono_jit_stats.methods_aot == mono_last_aot_method)
1932 printf ("LAST AOT METHOD: %s.%s.%s.\n", klass->name_space, klass->name, method->name);
1935 return mono_aot_load_method (domain, aot_module, method, code, info, method_index);
1939 mono_aot_load_method (MonoDomain *domain, MonoAotModule *aot_module, MonoMethod *method, guint8 *code, guint8 *info, int method_index)
1941 MonoClass *klass = method->klass;
1942 MonoJumpInfo *patch_info = NULL;
1944 int i, pindex, got_index = 0, n_patches, used_strings;
1945 gboolean non_got_patches, keep_patches = TRUE;
1946 guint8 *p, *ex_info;
1947 MonoJitInfo *jinfo = NULL;
1950 decode_klass_ref (aot_module, p, &p);
1952 if (!use_loaded_code) {
1956 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [mono_metadata_token_index (method->token) - 1]];
1957 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
1960 mono_domain_lock (domain);
1961 code2 = mono_code_manager_reserve (domain->code_mp, jinfo->code_size);
1962 mono_domain_unlock (domain);
1963 memcpy (code2, code, jinfo->code_size);
1964 mono_arch_flush_icache (code2, jinfo->code_size);
1968 if (aot_module->opts & MONO_OPT_SHARED)
1969 used_strings = decode_value (p, &p);
1973 for (i = 0; i < used_strings; i++) {
1974 guint token = decode_value (p, &p);
1975 mono_ldstr (mono_get_root_domain (), klass->image, mono_metadata_token_index (token));
1978 if (aot_module->opts & MONO_OPT_SHARED)
1979 keep_patches = FALSE;
1981 n_patches = decode_value (p, &p);
1983 keep_patches = FALSE;
1986 MonoJumpInfo *patches;
1992 mp = mono_mempool_new ();
1994 got_index = decode_value (p, &p);
1996 patches = load_patch_info (aot_module, mp, n_patches, got_index, &got_slots, p, &p);
1997 if (patches == NULL)
2000 non_got_patches = FALSE;
2001 for (pindex = 0; pindex < n_patches; ++pindex) {
2002 MonoJumpInfo *ji = &patches [pindex];
2004 if (is_got_patch (ji->type)) {
2005 if (!aot_module->got [got_slots [pindex]]) {
2006 aot_module->got [got_slots [pindex]] = mono_resolve_patch_target (method, domain, code, ji, TRUE);
2007 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
2008 register_jump_target_got_slot (domain, ji->data.method, &(aot_module->got [got_slots [pindex]]));
2010 ji->type = MONO_PATCH_INFO_NONE;
2013 non_got_patches = TRUE;
2015 if (non_got_patches) {
2017 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [mono_metadata_token_index (method->token) - 1]];
2018 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
2021 mono_arch_flush_icache (code, jinfo->code_size);
2022 make_writable (code, jinfo->code_size);
2023 mono_arch_patch_code (method, domain, code, patch_info, TRUE);
2029 mono_mempool_destroy (mp);
2034 mono_jit_stats.methods_aot++;
2036 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2037 char *full_name = mono_method_full_name (method, TRUE);
2040 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [method_index]];
2041 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
2044 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT FOUND AOT compiled code for %s %p - %p %p\n", full_name, code, code + jinfo->code_size, info);
2048 aot_module->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
2050 init_plt (aot_module);
2052 if (method->wrapper_type)
2053 g_hash_table_insert (aot_module->wrappers_to_code, method, code);
2060 /* FIXME: The space in domain->mp is wasted */
2061 if (aot_module->opts & MONO_OPT_SHARED)
2062 /* No need to cache patches */
2063 mono_mempool_destroy (mp);
2072 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
2076 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2079 int i, method_index, pindex, got_index, n_patches, used_strings;
2080 gboolean keep_patches = TRUE;
2082 guint8 *code = NULL;
2084 MonoAotModule *aot_module = image->aot_module;
2090 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE)
2093 if (domain != mono_get_root_domain ())
2096 if (aot_module->out_of_date)
2099 if (aot_module->code_offsets [mono_metadata_token_index (token) - 1] == 0xffffffff) {
2103 method_index = mono_metadata_token_index (token) - 1;
2104 code = &aot_module->code [aot_module->code_offsets [method_index]];
2105 info = &aot_module->method_info [aot_module->method_info_offsets [method_index]];
2108 if (!aot_module->methods_loaded)
2109 aot_module->methods_loaded = g_new0 (guint32, image->tables [MONO_TABLE_METHOD].rows + 1);
2112 if ((aot_module->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
2115 if (mono_last_aot_method != -1) {
2116 if (mono_jit_stats.methods_aot > mono_last_aot_method)
2119 if (mono_jit_stats.methods_aot == mono_last_aot_method) {
2120 MonoMethod *method = mono_get_method (image, token, NULL);
2121 printf ("LAST AOT METHOD: %s.%s.%s.\n", method->klass->name_space, method->klass->name, method->name);
2126 klass = decode_klass_ref (aot_module, p, &p);
2128 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2129 MonoMethod *method = mono_get_method (image, token, NULL);
2130 char *full_name = mono_method_full_name (method, TRUE);
2131 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT FOUND AOT compiled code for %s %p %p\n", full_name, code, info);
2135 if (aot_module->opts & MONO_OPT_SHARED)
2136 used_strings = decode_value (p, &p);
2140 for (i = 0; i < used_strings; i++) {
2141 guint string_token = decode_value (p, &p);
2142 mono_ldstr (mono_get_root_domain (), image, mono_metadata_token_index (string_token));
2145 if (aot_module->opts & MONO_OPT_SHARED)
2146 keep_patches = FALSE;
2148 keep_patches = FALSE;
2150 n_patches = decode_value (p, &p);
2153 MonoJumpInfo *patches;
2159 mp = mono_mempool_new ();
2161 got_index = decode_value (p, &p);
2163 patches = load_patch_info (aot_module, mp, n_patches, got_index, &got_slots, p, &p);
2164 if (patches == NULL)
2167 for (pindex = 0; pindex < n_patches; ++pindex) {
2168 MonoJumpInfo *ji = &patches [pindex];
2170 if (is_got_patch (ji->type)) {
2171 if (!aot_module->got [got_slots [pindex]]) {
2172 aot_module->got [got_slots [pindex]] = mono_resolve_patch_target (NULL, domain, code, ji, TRUE);
2173 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
2174 register_jump_target_got_slot (domain, ji->data.method, &(aot_module->got [got_slots [pindex]]));
2176 ji->type = MONO_PATCH_INFO_NONE;
2183 mono_mempool_destroy (mp);
2186 mono_jit_stats.methods_aot++;
2190 aot_module->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
2192 init_plt (aot_module);
2197 mono_runtime_class_init (mono_class_vtable (domain, klass));
2202 /* FIXME: The space in domain->mp is wasted */
2203 if (aot_module->opts & MONO_OPT_SHARED)
2204 /* No need to cache patches */
2205 mono_mempool_destroy (mp);
2213 } IsGotEntryUserData;
2216 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
2218 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
2219 MonoAotModule *aot_module = (MonoAotModule*)value;
2221 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->got_size)))
2226 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
2228 IsGotEntryUserData user_data;
2233 user_data.addr = addr;
2234 user_data.res = FALSE;
2236 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
2239 return user_data.res;
2244 MonoAotModule *module;
2245 } FindAotModuleUserData;
2248 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
2250 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
2251 MonoAotModule *aot_module = (MonoAotModule*)value;
2253 if ((data->addr >= (guint8*)(aot_module->code)) && (data->addr < (guint8*)(aot_module->code_end)))
2254 data->module = aot_module;
2257 static inline MonoAotModule*
2258 find_aot_module (guint8 *code)
2260 FindAotModuleUserData user_data;
2265 /* Reading these need no locking */
2266 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
2269 user_data.addr = code;
2270 user_data.module = NULL;
2273 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
2276 return user_data.module;
2280 * mono_aot_set_make_unreadable:
2282 * Set whenever to make all mmaped memory unreadable. In conjuction with a
2283 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
2286 mono_aot_set_make_unreadable (gboolean unreadable)
2288 make_unreadable = unreadable;
2292 MonoAotModule *module;
2297 find_map (gpointer key, gpointer value, gpointer user_data)
2299 MonoAotModule *module = (MonoAotModule*)value;
2300 FindMapUserData *data = (FindMapUserData*)user_data;
2303 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
2304 data->module = module;
2307 static MonoAotModule*
2308 find_module_for_addr (void *ptr)
2310 FindMapUserData data;
2312 if (!make_unreadable)
2316 data.ptr = (guint8*)ptr;
2319 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
2326 * mono_aot_is_pagefault:
2328 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
2329 * within memory allocated by this module.
2332 mono_aot_is_pagefault (void *ptr)
2334 if (!make_unreadable)
2337 return find_module_for_addr (ptr) != NULL;
2341 * mono_aot_handle_pagefault:
2343 * Handle a pagefault caused by an unreadable page by making it readable again.
2346 mono_aot_handle_pagefault (void *ptr)
2348 #ifndef PLATFORM_WIN32
2349 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), PAGESIZE);
2353 res = mprotect (start, PAGESIZE, PROT_READ|PROT_WRITE|PROT_EXEC);
2354 g_assert (res == 0);
2365 printf ("\nNative stacktrace:\n\n");
2367 size = backtrace (array, 256);
2368 names = backtrace_symbols (array, size);
2369 for (i =0; i < size; ++i) {
2370 printf ("\t%s\n", names [i]);
2380 * mono_aot_plt_resolve:
2382 * This function is called by the entries in the PLT to resolve the actual method that
2383 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
2386 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
2388 #ifdef MONO_ARCH_AOT_SUPPORTED
2389 guint8 *p, *target, *plt_entry;
2391 MonoAotModule *module = (MonoAotModule*)aot_module;
2395 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
2397 p = &module->plt_info [plt_info_offset];
2399 ji.type = decode_value (p, &p);
2401 mp = mono_mempool_new_size (512);
2402 res = decode_patch (module, mp, &ji, p, &p);
2403 // FIXME: Error handling (how ?)
2406 target = mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE);
2408 mono_mempool_destroy (mp);
2410 /* Patch the PLT entry with target which might be the actual method not a trampoline */
2411 plt_entry = mono_aot_get_plt_entry (code);
2412 g_assert (plt_entry);
2413 mono_arch_patch_plt_entry (plt_entry, target);
2417 g_assert_not_reached ();
2425 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
2426 * method in the module is loaded to avoid committing memory by writing to it.
2427 * LOCKING: Assumes the AOT lock is held.
2430 init_plt (MonoAotModule *info)
2432 #ifdef MONO_ARCH_AOT_SUPPORTED
2434 guint8 *buf = info->plt;
2435 #elif defined(__x86_64__)
2437 #elif defined(__arm__)
2442 if (info->plt_inited)
2445 tramp = mono_create_specific_trampoline (info, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
2448 /* Initialize the first PLT entry */
2449 make_writable (info->plt, info->plt_end - info->plt);
2450 x86_jump_code (buf, tramp);
2451 #elif defined(__x86_64__) || defined(__arm__)
2453 * Initialize the entries in the plt_jump_table to point to the default targets.
2455 n_entries = info->plt_jump_table_size / sizeof (gpointer);
2457 /* The first entry points to the AOT trampoline */
2458 ((gpointer*)info->plt_jump_table)[0] = tramp;
2459 for (i = 1; i < n_entries; ++i)
2460 /* All the default entries point to the first entry */
2461 ((gpointer*)info->plt_jump_table)[i] = info->plt;
2463 g_assert_not_reached ();
2466 info->plt_inited = TRUE;
2471 * mono_aot_get_plt_entry:
2473 * Return the address of the PLT entry called by the code at CODE if exists.
2476 mono_aot_get_plt_entry (guint8 *code)
2478 MonoAotModule *aot_module = find_aot_module (code);
2479 #if defined(__arm__)
2486 #if defined(__i386__) || defined(__x86_64__)
2487 if (code [-5] == 0xe8) {
2488 guint32 disp = *(guint32*)(code - 4);
2489 guint8 *target = code + disp;
2491 if ((target >= (guint8*)(aot_module->plt)) && (target < (guint8*)(aot_module->plt_end)))
2494 #elif defined(__arm__)
2495 ins = ((guint32*)(gpointer)code) [-1];
2497 /* Should be a 'bl' */
2498 if ((((ins >> 25) & 0x7) == 0x5) && (((ins >> 24) & 0x1) == 0x1)) {
2499 gint32 disp = ((gint32)ins) & 0xffffff;
2500 guint8 *target = code - 4 + 8 + (disp * 4);
2502 if ((target >= (guint8*)(aot_module->plt)) && (target < (guint8*)(aot_module->plt_end)))
2506 g_assert_not_reached ();
2513 * mono_aot_get_plt_info_offset:
2515 * Return the PLT info offset belonging to the plt entry called by CODE.
2518 mono_aot_get_plt_info_offset (gssize *regs, guint8 *code)
2520 guint8 *plt_entry = mono_aot_get_plt_entry (code);
2522 g_assert (plt_entry);
2524 /* The offset is embedded inside the code after the plt entry */
2525 #if defined(__i386__)
2526 return *(guint32*)(plt_entry + 5);
2527 #elif defined(__x86_64__)
2528 return *(guint32*)(plt_entry + 6);
2529 #elif defined(__arm__)
2530 /* The offset is stored as the 5th word of the plt entry */
2531 return ((guint32*)plt_entry) [4];
2533 g_assert_not_reached ();
2539 load_named_code (MonoAotModule *amodule, const char *name)
2543 int n_patches, got_index, pindex;
2549 symbol = g_strdup_printf ("%s", name);
2550 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&code);
2553 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
2555 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT FOUND function '%s' in AOT file '%s'.\n", name, amodule->aot_name);
2559 symbol = g_strdup_printf ("%s_p", name);
2560 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&p);
2563 /* Nothing to patch */
2566 /* Similar to mono_aot_load_method () */
2568 n_patches = decode_value (p, &p);
2571 MonoJumpInfo *patches;
2574 mp = mono_mempool_new ();
2576 got_index = decode_value (p, &p);
2578 patches = load_patch_info (amodule, mp, n_patches, got_index, &got_slots, p, &p);
2581 for (pindex = 0; pindex < n_patches; ++pindex) {
2582 MonoJumpInfo *ji = &patches [pindex];
2586 * When this code is executed, the runtime may not yet initalized, so
2587 * resolve the patch info by hand.
2589 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
2590 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
2591 target = mono_get_lmf_addr;
2592 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint")) {
2593 target = mono_thread_force_interruption_checkpoint;
2594 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
2595 target = mono_exception_from_token;
2596 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
2597 target = mono_get_throw_exception ();
2599 } else if (!strcmp (ji->data.name, "mono_amd64_throw_exception")) {
2600 target = mono_amd64_throw_exception;
2603 } else if (!strcmp (ji->data.name, "mono_arm_throw_exception")) {
2604 target = mono_arm_throw_exception;
2606 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
2607 int tramp_type2 = atoi (ji->data.name + strlen ("trampoline_func_"));
2608 target = (gpointer)mono_get_trampoline_func (tramp_type2);
2609 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
2610 guint32 slot = atoi (ji->data.name + strlen ("specific_trampoline_lazy_fetch_"));
2611 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
2613 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
2614 g_assert_not_reached ();
2618 /* Hopefully the code doesn't have patches which need method or
2621 target = mono_resolve_patch_target (NULL, NULL, code, ji, FALSE);
2624 amodule->got [got_slots [pindex]] = target;
2629 mono_mempool_destroy (mp);
2636 * Return the piece of code identified by NAME from the mscorlib AOT file.
2639 mono_aot_get_named_code (const char *name)
2642 MonoAotModule *amodule;
2644 image = mono_defaults.corlib;
2647 amodule = image->aot_module;
2650 return load_named_code (amodule, name);
2654 * Return a specific trampoline from the AOT file.
2657 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
2659 MonoAotModule *amodule;
2660 int index, tramp_size;
2661 guint8 *code, *tramp;
2662 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
2664 /* Currently, we keep all trampolines in the mscorlib AOT image */
2665 image = mono_defaults.corlib;
2670 amodule = image->aot_module;
2673 if (amodule->trampoline_index == amodule->num_trampolines)
2674 g_error ("Ran out of trampolines in '%s' (%d)\n", image->name, amodule->num_trampolines);
2676 index = amodule->trampoline_index ++;
2680 if (!generic_trampolines [tramp_type]) {
2683 symbol = g_strdup_printf ("generic_trampoline_%d", tramp_type);
2684 generic_trampolines [tramp_type] = mono_aot_get_named_code (symbol);
2688 tramp = generic_trampolines [tramp_type];
2691 amodule->got [amodule->first_trampoline_got_offset + (index *2)] = tramp;
2692 amodule->got [amodule->first_trampoline_got_offset + (index *2) + 1] = arg1;
2696 #elif defined(__arm__)
2700 g_assert_not_reached ();
2703 code = amodule->trampolines + (index * tramp_size);
2705 *code_len = tramp_size;
2711 mono_aot_get_unbox_trampoline (MonoMethod *method)
2713 guint32 method_index = mono_metadata_token_index (method->token) - 1;
2714 MonoAotModule *amodule;
2718 amodule = method->klass->image->aot_module;
2721 symbol = g_strdup_printf ("unbox_trampoline_%d", method_index);
2722 code = load_named_code (amodule, symbol);
2728 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
2733 symbol = g_strdup_printf ("rgctx_fetch_trampoline_%u", slot);
2734 code = load_named_code (mono_defaults.corlib->aot_module, symbol);
2740 * mono_aot_get_n_pagefaults:
2742 * Return the number of times handle_pagefault is called.
2745 mono_aot_get_n_pagefaults (void)
2747 return n_pagefaults;
2754 mono_aot_init (void)
2759 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
2765 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
2771 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2777 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2783 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
2789 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2795 mono_aot_is_pagefault (void *ptr)
2801 mono_aot_set_make_unreadable (gboolean unreadable)
2806 mono_aot_get_n_pagefaults (void)
2812 mono_aot_handle_pagefault (void *ptr)
2817 mono_aot_get_plt_entry (guint8 *code)
2823 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
2829 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2835 mono_aot_create_specific_trampolines (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
2837 g_assert_not_reached ();
2842 mono_aot_get_named_code (char *name)
2844 g_assert_not_reached ();
2849 mono_aot_get_unbox_trampoline (MonoMethod *method)
2851 g_assert_not_reached ();