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.
410 static inline MonoImage*
411 decode_method_ref (MonoAotModule *module, guint32 *token, MonoMethod **method, guint8 *buf, guint8 **endbuf)
413 guint32 image_index, value;
420 value = decode_value (p, &p);
421 image_index = value >> 24;
423 if (image_index == 253) {
425 guint32 wrapper_type;
427 wrapper_type = decode_value (p, &p);
430 image = mono_defaults.corlib;
432 switch (wrapper_type) {
433 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
434 MonoMethod *m = decode_method_ref_2 (module, p, &p);
438 mono_class_init (m->klass);
439 *method = mono_marshal_get_remoting_invoke_with_check (m);
442 case MONO_WRAPPER_PROXY_ISINST: {
443 MonoClass *klass = decode_klass_ref (module, p, &p);
446 *method = mono_marshal_get_proxy_cancast (klass);
449 case MONO_WRAPPER_LDFLD:
450 case MONO_WRAPPER_LDFLDA:
451 case MONO_WRAPPER_STFLD:
452 case MONO_WRAPPER_ISINST: {
453 MonoClass *klass = decode_klass_ref (module, p, &p);
456 if (wrapper_type == MONO_WRAPPER_LDFLD)
457 *method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
458 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
459 *method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
460 else if (wrapper_type == MONO_WRAPPER_STFLD)
461 *method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
462 else if (wrapper_type == MONO_WRAPPER_ISINST)
463 *method = mono_marshal_get_isinst (klass);
465 g_assert_not_reached ();
468 case MONO_WRAPPER_LDFLD_REMOTE:
469 *method = mono_marshal_get_ldfld_remote_wrapper (NULL);
471 case MONO_WRAPPER_STFLD_REMOTE:
472 *method = mono_marshal_get_stfld_remote_wrapper (NULL);
474 case MONO_WRAPPER_ALLOC: {
475 int atype = decode_value (p, &p);
477 *method = mono_gc_get_managed_allocator_by_type (atype);
480 case MONO_WRAPPER_STELEMREF:
481 *method = mono_marshal_get_stelemref ();
483 case MONO_WRAPPER_STATIC_RGCTX_INVOKE: {
484 MonoMethod *m = decode_method_ref_2 (module, p, &p);
488 *method = mono_marshal_get_static_rgctx_invoke (m);
492 g_assert_not_reached ();
494 } else if (image_index == 255) {
496 image_index = decode_value (p, &p);
497 *token = decode_value (p, &p);
499 image = load_image (module, image_index);
502 } else if (image_index == 254) {
503 /* Method on generic instance */
505 MonoGenericContext ctx;
506 gboolean has_class_inst, has_method_inst;
509 * These methods do not have a token which resolves them, so we
510 * resolve them immediately.
512 klass = decode_klass_ref (module, p, &p);
516 image_index = decode_value (p, &p);
517 *token = decode_value (p, &p);
519 image = load_image (module, image_index);
523 *method = mono_get_method_full (image, *token, NULL, NULL);
527 memset (&ctx, 0, sizeof (ctx));
529 if (FALSE && klass->generic_class) {
530 ctx.class_inst = klass->generic_class->context.class_inst;
531 ctx.method_inst = NULL;
533 *method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
536 memset (&ctx, 0, sizeof (ctx));
538 // FIXME: Memory management
539 has_class_inst = decode_value (p, &p);
540 if (has_class_inst) {
541 ctx.class_inst = decode_generic_inst (module, p, &p);
545 has_method_inst = decode_value (p, &p);
546 if (has_method_inst) {
547 ctx.method_inst = decode_generic_inst (module, p, &p);
548 if (!ctx.method_inst)
552 *method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
554 *token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
556 image = load_image (module, image_index);
567 * decode_method_ref_2:
569 * Similar to decode_method_ref, but resolve and return the method itself.
572 decode_method_ref_2 (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
576 MonoImage *image = decode_method_ref (module, &token, &method, buf, endbuf);
582 return mono_get_method (image, token, NULL);
587 make_writable (guint8* addr, guint32 len)
589 #ifndef PLATFORM_WIN32
594 g_error ("Attempt to make AOT memory writable while running in aot-only mode.\n");
596 page_start = (guint8 *) (((gssize) (addr)) & ~ (PAGESIZE - 1));
597 pages = (addr + len - page_start + PAGESIZE - 1) / PAGESIZE;
598 err = mprotect (page_start, pages * PAGESIZE, PROT_READ | PROT_WRITE | PROT_EXEC);
603 g_assert (VirtualProtect (addr, len, PAGE_EXECUTE_READWRITE, &oldp) != 0);
609 create_cache_structure (void)
615 home = g_get_home_dir ();
619 tmp = g_build_filename (home, ".mono", NULL);
620 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
621 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
622 #ifdef PLATFORM_WIN32
625 err = mkdir (tmp, 0777);
628 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
634 tmp = g_build_filename (home, ".mono", "aot-cache", NULL);
635 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
636 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
637 #ifdef PLATFORM_WIN32
640 err = mkdir (tmp, 0777);
643 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
652 * load_aot_module_from_cache:
654 * Experimental code to AOT compile loaded assemblies on demand.
657 * - Add environment variable MONO_AOT_CACHE_OPTIONS
658 * - Add options for controlling the cache size
659 * - Handle full cache by deleting old assemblies lru style
660 * - Add options for excluding assemblies during development
661 * - Maybe add a threshold after an assembly is AOT compiled
662 * - invoking a new mono process is a security risk
663 * - recompile the AOT module if one of its dependencies changes
666 load_aot_module_from_cache (MonoAssembly *assembly, char **aot_name)
668 char *fname, *cmd, *tmp2, *aot_options;
677 if (assembly->image->dynamic)
680 create_cache_structure ();
682 home = g_get_home_dir ();
684 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, assembly->image->guid, SHARED_EXT);
685 fname = g_build_filename (home, ".mono", "aot-cache", tmp2, NULL);
689 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT trying to load from cache: '%s'.", fname);
690 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
693 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT not found.");
695 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT precompiling assembly '%s'... ", assembly->image->name);
697 aot_options = g_strdup_printf ("outfile=%s", fname);
699 if (spawn_compiler) {
700 /* FIXME: security */
701 /* FIXME: Has to pass the assembly loading path to the child process */
702 cmd = g_strdup_printf ("mono -O=all --aot=%s %s", aot_options, assembly->image->name);
704 res = g_spawn_command_line_sync (cmd, &out, &err, &exit_status, NULL);
706 #if !defined(PLATFORM_WIN32) && !defined(__ppc__) && !defined(__ppc64__) && !defined(__powerpc__)
708 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
709 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed: %s.", err);
711 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
718 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
720 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed.");
722 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
726 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
728 g_free (aot_options);
735 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
741 for (i = 0; globals [i]; i+= 2) {
742 if (strcmp (globals [i], name) == 0) {
743 *value = globals [i + 1];
748 mono_dl_symbol (module, name, value);
753 load_aot_module (MonoAssembly *assembly, gpointer user_data)
756 MonoAotModule *amodule;
758 gboolean usable = TRUE;
759 char *saved_guid = NULL;
760 char *aot_version = NULL;
761 char *runtime_version;
762 char *opt_flags = NULL;
764 gboolean full_aot = FALSE;
765 gpointer *plt_jump_table_addr = NULL;
766 guint32 *plt_jump_table_size = NULL;
767 guint32 *trampolines_info = NULL;
768 gpointer *got_addr = NULL;
769 gpointer *got = NULL;
770 guint32 *got_size_ptr = NULL;
773 if (mono_compile_aot)
776 if (assembly->image->aot_module)
778 * Already loaded. This can happen because the assembly loading code might invoke
779 * the assembly load hooks multiple times for the same assembly.
783 if (assembly->image->dynamic)
787 if (static_aot_modules)
788 globals = g_hash_table_lookup (static_aot_modules, assembly->aname.name);
794 /* Statically linked AOT module */
796 aot_name = g_strdup_printf ("%s", assembly->aname.name);
797 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
799 TlsSetValue (globals_tls_id, NULL);
802 sofile = load_aot_module_from_cache (assembly, &aot_name);
805 aot_name = g_strdup_printf ("%s%s", assembly->image->name, SHARED_EXT);
807 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
810 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed to load AOT module %s: %s\n", aot_name, err);
816 * If the image was compiled in no-dlsym mode, it contains no global symbols,
817 * instead it contains an ELF ctor function which is called by dlopen () which
818 * in turn calls mono_aot_register_globals () to register a table which contains
819 * the name and address of the globals.
821 globals = TlsGetValue (globals_tls_id);
822 TlsSetValue (globals_tls_id, NULL);
825 if (!sofile && !globals) {
827 fprintf (stderr, "Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
834 find_symbol (sofile, globals, "mono_assembly_guid", (gpointer *) &saved_guid);
835 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &aot_version);
836 find_symbol (sofile, globals, "mono_aot_opt_flags", (gpointer *)&opt_flags);
837 find_symbol (sofile, globals, "mono_runtime_version", (gpointer *)&runtime_version);
839 if (!aot_version || strcmp (aot_version, MONO_AOT_FILE_VERSION)) {
840 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);
844 if (!saved_guid || strcmp (assembly->image->guid, saved_guid)) {
845 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is out of date.\n", aot_name);
850 if (!runtime_version || ((strlen (runtime_version) > 0 && strcmp (runtime_version, FULL_VERSION)))) {
851 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);
858 find_symbol (sofile, globals, "mono_aot_full_aot", (gpointer *)&full_aot_str);
860 if (full_aot_str && !strcmp (full_aot_str, "TRUE"))
864 if (mono_aot_only && !full_aot) {
865 fprintf (stderr, "Can't use AOT image '%s' in aot-only mode because it is not compiled with --aot=full.\n", aot_name);
868 if (!mono_aot_only && full_aot) {
869 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is compiled with --aot=full.\n", aot_name);
875 fprintf (stderr, "Failed to load AOT module '%s' while running in aot-only mode.\n", aot_name);
880 mono_dl_close (sofile);
881 assembly->image->aot_module = NULL;
885 find_symbol (sofile, globals, "got_addr", (gpointer *)&got_addr);
887 got = (gpointer*)*got_addr;
889 find_symbol (sofile, globals, "got_size", (gpointer *)&got_size_ptr);
890 g_assert (got_size_ptr);
892 amodule = g_new0 (MonoAotModule, 1);
893 amodule->aot_name = aot_name;
894 amodule->assembly = assembly;
896 amodule->got_size = *got_size_ptr;
897 amodule->got [0] = assembly->image;
898 amodule->globals = globals;
899 amodule->sofile = sofile;
901 sscanf (opt_flags, "%d", &amodule->opts);
903 /* Read image table */
905 guint32 table_len, i;
908 find_symbol (sofile, globals, "mono_image_table", (gpointer *)&table);
911 table_len = *(guint32*)table;
912 table += sizeof (guint32);
913 amodule->image_table = g_new0 (MonoImage*, table_len);
914 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
915 amodule->image_guids = g_new0 (char*, table_len);
916 amodule->image_table_len = table_len;
917 for (i = 0; i < table_len; ++i) {
918 MonoAssemblyName *aname = &(amodule->image_names [i]);
920 aname->name = g_strdup (table);
921 table += strlen (table) + 1;
922 amodule->image_guids [i] = g_strdup (table);
923 table += strlen (table) + 1;
925 aname->culture = g_strdup (table);
926 table += strlen (table) + 1;
927 memcpy (aname->public_key_token, table, strlen (table) + 1);
928 table += strlen (table) + 1;
930 table = ALIGN_PTR_TO (table, 8);
931 aname->flags = *(guint32*)table;
933 aname->major = *(guint32*)table;
935 aname->minor = *(guint32*)table;
937 aname->build = *(guint32*)table;
939 aname->revision = *(guint32*)table;
944 /* Read method and method_info tables */
945 find_symbol (sofile, globals, "method_offsets", (gpointer*)&amodule->code_offsets);
946 find_symbol (sofile, globals, "methods", (gpointer*)&amodule->code);
947 find_symbol (sofile, globals, "methods_end", (gpointer*)&amodule->code_end);
948 find_symbol (sofile, globals, "method_info_offsets", (gpointer*)&amodule->method_info_offsets);
949 find_symbol (sofile, globals, "method_info", (gpointer*)&amodule->method_info);
950 find_symbol (sofile, globals, "ex_info_offsets", (gpointer*)&amodule->ex_info_offsets);
951 find_symbol (sofile, globals, "ex_info", (gpointer*)&amodule->ex_info);
952 find_symbol (sofile, globals, "method_order", (gpointer*)&amodule->method_order);
953 find_symbol (sofile, globals, "method_order_end", (gpointer*)&amodule->method_order_end);
954 find_symbol (sofile, globals, "class_info", (gpointer*)&amodule->class_info);
955 find_symbol (sofile, globals, "class_info_offsets", (gpointer*)&amodule->class_info_offsets);
956 find_symbol (sofile, globals, "class_name_table", (gpointer *)&amodule->class_name_table);
957 find_symbol (sofile, globals, "got_info", (gpointer*)&amodule->got_info);
958 find_symbol (sofile, globals, "got_info_offsets", (gpointer*)&amodule->got_info_offsets);
959 find_symbol (sofile, globals, "wrapper_info", (gpointer*)&amodule->wrapper_info);
960 find_symbol (sofile, globals, "trampolines", (gpointer*)&amodule->trampolines);
961 find_symbol (sofile, globals, "mem_end", (gpointer*)&amodule->mem_end);
963 amodule->mem_begin = amodule->code;
965 find_symbol (sofile, globals, "plt", (gpointer*)&amodule->plt);
966 find_symbol (sofile, globals, "plt_end", (gpointer*)&amodule->plt_end);
967 find_symbol (sofile, globals, "plt_info", (gpointer*)&amodule->plt_info);
969 find_symbol (sofile, globals, "plt_jump_table_addr", (gpointer *)&plt_jump_table_addr);
970 g_assert (plt_jump_table_addr);
971 amodule->plt_jump_table = (guint8*)*plt_jump_table_addr;
972 g_assert (amodule->plt_jump_table);
974 find_symbol (sofile, globals, "plt_jump_table_size", (gpointer *)&plt_jump_table_size);
975 g_assert (plt_jump_table_size);
976 amodule->plt_jump_table_size = *plt_jump_table_size;
978 find_symbol (sofile, globals, "trampolines_info", (gpointer *)&trampolines_info);
979 if (trampolines_info) {
980 amodule->num_trampolines = trampolines_info [0];
981 amodule->first_trampoline_got_offset = trampolines_info [1];
984 if (make_unreadable) {
985 #ifndef PLATFORM_WIN32
990 addr = amodule->mem_begin;
991 len = amodule->mem_end - amodule->mem_begin;
993 /* Round down in both directions to avoid modifying data which is not ours */
994 page_start = (guint8 *) (((gssize) (addr)) & ~ (PAGESIZE - 1)) + PAGESIZE;
995 pages = ((addr + len - page_start + PAGESIZE - 1) / PAGESIZE) - 1;
996 err = mprotect (page_start, pages * PAGESIZE, 0);
1003 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->code);
1004 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->code_end);
1006 g_hash_table_insert (aot_modules, assembly, amodule);
1009 mono_jit_info_add_aot_module (assembly->image, amodule->code, amodule->code_end);
1011 assembly->image->aot_module = amodule;
1014 * Since we store methoddef and classdef tokens when referring to methods/classes in
1015 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
1016 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
1017 * non-lazily, since we can't handle out-of-date errors later.
1019 for (i = 0; i < amodule->image_table_len; ++i)
1020 load_image (amodule, i);
1022 if (amodule->out_of_date) {
1023 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);
1024 if (mono_aot_only) {
1025 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);
1030 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT loaded AOT Module for %s.\n", assembly->image->name);
1034 * mono_aot_register_globals:
1036 * This is called by the ctor function in AOT images compiled with the
1037 * 'no-dlsym' option.
1040 mono_aot_register_globals (gpointer *globals)
1042 TlsSetValue (globals_tls_id, globals);
1046 * mono_aot_register_module:
1048 * This should be called by embedding code to register AOT modules statically linked
1049 * into the executable. AOT_INFO should be the value of the
1050 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
1053 mono_aot_register_module (gpointer *aot_info)
1061 /* Determine the assembly name */
1062 find_symbol (NULL, globals, "mono_aot_assembly_name", (gpointer*)&aname);
1065 /* This could be called before startup */
1069 if (!static_aot_modules)
1070 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
1072 g_hash_table_insert (static_aot_modules, aname, globals);
1079 mono_aot_init (void)
1081 InitializeCriticalSection (&aot_mutex);
1082 aot_modules = g_hash_table_new (NULL, NULL);
1083 globals_tls_id = TlsAlloc ();
1085 mono_install_assembly_load_hook (load_aot_module, NULL);
1087 if (getenv ("MONO_LASTAOT"))
1088 mono_last_aot_method = atoi (getenv ("MONO_LASTAOT"));
1089 if (getenv ("MONO_AOT_CACHE"))
1090 use_aot_cache = TRUE;
1094 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
1098 info->vtable_size = decode_value (buf, &buf);
1099 if (info->vtable_size == -1)
1102 flags = decode_value (buf, &buf);
1103 info->ghcimpl = (flags >> 0) & 0x1;
1104 info->has_finalize = (flags >> 1) & 0x1;
1105 info->has_cctor = (flags >> 2) & 0x1;
1106 info->has_nested_classes = (flags >> 3) & 0x1;
1107 info->blittable = (flags >> 4) & 0x1;
1108 info->has_references = (flags >> 5) & 0x1;
1109 info->has_static_refs = (flags >> 6) & 0x1;
1110 info->no_special_static_fields = (flags >> 7) & 0x1;
1112 if (info->has_cctor) {
1113 MonoImage *cctor_image = decode_method_ref (module, &info->cctor_token, NULL, buf, &buf);
1117 if (info->has_finalize) {
1118 info->finalize_image = decode_method_ref (module, &info->finalize_token, NULL, buf, &buf);
1119 if (!info->finalize_image)
1123 info->instance_size = decode_value (buf, &buf);
1124 info->class_size = decode_value (buf, &buf);
1125 info->packing_size = decode_value (buf, &buf);
1126 info->min_align = decode_value (buf, &buf);
1134 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
1137 MonoClass *klass = vtable->klass;
1138 MonoAotModule *aot_module = klass->image->aot_module;
1140 MonoCachedClassInfo class_info;
1145 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !aot_module)
1148 info = &aot_module->class_info [aot_module->class_info_offsets [mono_metadata_token_index (klass->type_token) - 1]];
1151 err = decode_cached_class_info (aot_module, &class_info, p, &p);
1155 for (i = 0; i < slot; ++i)
1156 decode_method_ref (aot_module, &token, NULL, p, &p);
1158 image = decode_method_ref (aot_module, &token, NULL, p, &p);
1162 return mono_aot_get_method_from_token (domain, image, token);
1166 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
1168 MonoAotModule *aot_module = klass->image->aot_module;
1172 if (klass->rank || !aot_module)
1175 p = (guint8*)&aot_module->class_info [aot_module->class_info_offsets [mono_metadata_token_index (klass->type_token) - 1]];
1177 err = decode_cached_class_info (aot_module, res, p, &p);
1185 * mono_aot_get_class_from_name:
1187 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
1188 * using a cache stored in the AOT file.
1189 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
1191 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
1195 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
1197 MonoAotModule *aot_module = image->aot_module;
1198 guint16 *table, *entry;
1201 char full_name_buf [1024];
1203 const char *name2, *name_space2;
1205 guint32 cols [MONO_TYPEDEF_SIZE];
1206 GHashTable *nspace_table;
1208 if (!aot_module || !aot_module->class_name_table)
1215 /* First look in the cache */
1216 if (!aot_module->name_cache)
1217 aot_module->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
1218 nspace_table = g_hash_table_lookup (aot_module->name_cache, name_space);
1220 *klass = g_hash_table_lookup (nspace_table, name);
1227 table_size = aot_module->class_name_table [0];
1228 table = aot_module->class_name_table + 1;
1230 if (name_space [0] == '\0')
1231 full_name = g_strdup_printf ("%s", name);
1233 if (strlen (name_space) + strlen (name) < 1000) {
1234 sprintf (full_name_buf, "%s.%s", name_space, name);
1235 full_name = full_name_buf;
1237 full_name = g_strdup_printf ("%s.%s", name_space, name);
1240 hash = g_str_hash (full_name) % table_size;
1241 if (full_name != full_name_buf)
1244 entry = &table [hash * 2];
1246 if (entry [0] != 0) {
1247 t = &image->tables [MONO_TABLE_TYPEDEF];
1250 guint32 index = entry [0];
1251 guint32 next = entry [1];
1252 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
1254 name_table_accesses ++;
1256 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
1258 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
1259 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
1261 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
1263 *klass = mono_class_get (image, token);
1268 nspace_table = g_hash_table_lookup (aot_module->name_cache, name_space);
1269 if (!nspace_table) {
1270 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
1271 g_hash_table_insert (aot_module->name_cache, (char*)name_space2, nspace_table);
1273 g_hash_table_insert (nspace_table, (char*)name2, *klass);
1280 entry = &table [next * 2];
1293 decode_exception_debug_info (MonoAotModule *aot_module, MonoDomain *domain,
1294 MonoMethod *method, guint8* ex_info, guint8 *code)
1298 guint code_len, used_int_regs;
1299 gboolean has_generic_jit_info;
1301 MonoMethodHeader *header;
1302 int generic_info_size;
1304 header = mono_method_get_header (method);
1306 /* Load the method info from the AOT file */
1309 code_len = decode_value (p, &p);
1310 used_int_regs = decode_value (p, &p);
1311 has_generic_jit_info = decode_value (p, &p);
1312 if (has_generic_jit_info)
1313 generic_info_size = sizeof (MonoGenericJitInfo);
1315 generic_info_size = 0;
1317 /* Exception table */
1318 if (header && header->num_clauses) {
1320 mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + (sizeof (MonoJitExceptionInfo) * header->num_clauses) + generic_info_size);
1321 jinfo->num_clauses = header->num_clauses;
1323 for (i = 0; i < header->num_clauses; ++i) {
1324 MonoExceptionClause *ec = &header->clauses [i];
1325 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
1327 ei->flags = ec->flags;
1328 ei->exvar_offset = decode_value (p, &p);
1330 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
1331 ei->data.filter = code + decode_value (p, &p);
1333 ei->data.catch_class = ec->data.catch_class;
1335 ei->try_start = code + decode_value (p, &p);
1336 ei->try_end = code + decode_value (p, &p);
1337 ei->handler_start = code + decode_value (p, &p);
1341 jinfo = mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + generic_info_size);
1343 jinfo->code_size = code_len;
1344 jinfo->used_regs = used_int_regs;
1345 jinfo->method = method;
1346 jinfo->code_start = code;
1347 jinfo->domain_neutral = 0;
1349 if (has_generic_jit_info) {
1350 MonoGenericJitInfo *gi;
1352 jinfo->has_generic_jit_info = 1;
1354 gi = mono_jit_info_get_generic_jit_info (jinfo);
1357 gi->has_this = decode_value (p, &p);
1358 gi->this_reg = decode_value (p, &p);
1359 gi->this_offset = decode_value (p, &p);
1361 /* This currently contains no data */
1362 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
1364 jinfo->method = decode_method_ref_2 (aot_module, p, &p);
1367 /* Load debug info */
1368 buf_len = decode_value (p, &p);
1369 mono_debug_add_aot_method (domain, method, code, p, buf_len);
1375 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
1377 int pos, left, right, offset, offset1, offset2, last_offset, new_offset, page_index, method_index, table_len;
1379 MonoAotModule *aot_module = image->aot_module;
1382 guint8 *code, *ex_info;
1383 guint32 *table, *ptr;
1389 if (domain != mono_get_root_domain ())
1393 offset = (guint8*)addr - aot_module->code;
1395 /* First search through the index */
1396 ptr = aot_module->method_order;
1401 if (*ptr == 0xffffff)
1405 while (*ptr != 0xffffff) {
1406 guint32 method_index = ptr [0];
1407 new_offset = aot_module->code_offsets [method_index];
1409 if (offset >= last_offset && offset < new_offset) {
1415 last_offset = new_offset;
1419 /* Skip rest of index */
1420 while (*ptr != 0xffffff)
1425 table_len = aot_module->method_order_end - table;
1427 g_assert (table <= aot_module->method_order_end);
1430 left = (page_index * 1024);
1431 right = left + 1024;
1433 if (right > table_len)
1436 offset1 = aot_module->code_offsets [table [left]];
1437 g_assert (offset1 <= offset);
1439 //printf ("Found in index: 0x%x 0x%x 0x%x\n", offset, last_offset, new_offset);
1442 //printf ("Not found in index: 0x%x\n", offset);
1447 /* Binary search inside the method_order table to find the method */
1449 pos = (left + right) / 2;
1451 g_assert (table + pos <= aot_module->method_order_end);
1453 //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]]);
1455 offset1 = aot_module->code_offsets [table [pos]];
1456 if (table + pos + 1 >= aot_module->method_order_end)
1457 offset2 = aot_module->code_end - aot_module->code;
1459 offset2 = aot_module->code_offsets [table [pos + 1]];
1461 if (offset < offset1)
1463 else if (offset >= offset2)
1469 method_index = table [pos];
1471 /* Might be a wrapper */
1472 if (aot_module->wrappers) {
1474 method = g_hash_table_lookup (aot_module->wrappers, GUINT_TO_POINTER (method_index));
1481 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
1482 method = mono_get_method (image, token, NULL);
1488 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
1490 code = &aot_module->code [aot_module->code_offsets [method_index]];
1491 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [method_index]];
1493 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
1495 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
1496 g_assert ((guint8*)addr < (guint8*)jinfo->code_start + jinfo->code_size);
1498 /* Add it to the normal JitInfo tables */
1499 mono_jit_info_table_add (domain, jinfo);
1504 /* Keep it in sync with the version in aot-compiler.c */
1505 static inline gboolean
1506 is_shared_got_patch (MonoJumpInfo *patch_info)
1508 switch (patch_info->type) {
1509 case MONO_PATCH_INFO_VTABLE:
1510 case MONO_PATCH_INFO_CLASS:
1511 case MONO_PATCH_INFO_IID:
1512 case MONO_PATCH_INFO_ADJUSTED_IID:
1513 case MONO_PATCH_INFO_FIELD:
1514 case MONO_PATCH_INFO_SFLDA:
1515 case MONO_PATCH_INFO_DECLSEC:
1516 case MONO_PATCH_INFO_LDTOKEN:
1517 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1518 case MONO_PATCH_INFO_RVA:
1519 case MONO_PATCH_INFO_METHODCONST:
1527 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
1535 case MONO_PATCH_INFO_METHOD:
1536 case MONO_PATCH_INFO_METHOD_JUMP:
1537 case MONO_PATCH_INFO_ICALL_ADDR:
1538 case MONO_PATCH_INFO_METHOD_RGCTX: {
1542 image = decode_method_ref (aot_module, &token, &method, p, &p);
1546 #ifdef MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN
1547 if (!method && !mono_aot_only && (ji->type == MONO_PATCH_INFO_METHOD) && (mono_metadata_token_table (token) == MONO_TABLE_METHOD)) {
1548 ji->data.target = mono_create_jit_trampoline_from_token (image, token);
1549 ji->type = MONO_PATCH_INFO_ABS;
1553 ji->data.method = method;
1555 ji->data.method = mono_get_method (image, token, NULL);
1556 g_assert (ji->data.method);
1557 mono_class_init (ji->data.method->klass);
1560 ji->data.method = mono_get_method (image, token, NULL);
1561 g_assert (ji->data.method);
1562 mono_class_init (ji->data.method->klass);
1567 case MONO_PATCH_INFO_INTERNAL_METHOD:
1568 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
1569 guint32 len = decode_value (p, &p);
1571 ji->data.name = (char*)p;
1575 case MONO_PATCH_INFO_METHODCONST:
1577 ji->data.method = decode_method_ref_2 (aot_module, p, &p);
1578 if (!ji->data.method)
1581 case MONO_PATCH_INFO_VTABLE:
1582 case MONO_PATCH_INFO_CLASS:
1583 case MONO_PATCH_INFO_IID:
1584 case MONO_PATCH_INFO_ADJUSTED_IID:
1586 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1587 if (!ji->data.klass)
1590 case MONO_PATCH_INFO_CLASS_INIT:
1591 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
1592 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1593 if (!ji->data.klass)
1596 case MONO_PATCH_INFO_IMAGE:
1597 ji->data.image = load_image (aot_module, decode_value (p, &p));
1598 if (!ji->data.image)
1601 case MONO_PATCH_INFO_FIELD:
1602 case MONO_PATCH_INFO_SFLDA:
1604 ji->data.field = decode_field_info (aot_module, p, &p);
1605 if (!ji->data.field)
1608 case MONO_PATCH_INFO_SWITCH:
1609 ji->data.table = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
1610 ji->data.table->table_size = decode_value (p, &p);
1611 table = g_new (gpointer, ji->data.table->table_size);
1612 ji->data.table->table = (MonoBasicBlock**)table;
1613 for (i = 0; i < ji->data.table->table_size; i++)
1614 table [i] = (gpointer)(gssize)decode_value (p, &p);
1616 case MONO_PATCH_INFO_R4: {
1619 ji->data.target = mono_mempool_alloc0 (mp, sizeof (float));
1620 val = decode_value (p, &p);
1621 *(float*)ji->data.target = *(float*)&val;
1624 case MONO_PATCH_INFO_R8: {
1627 ji->data.target = mono_mempool_alloc0 (mp, sizeof (double));
1629 val [0] = decode_value (p, &p);
1630 val [1] = decode_value (p, &p);
1631 *(double*)ji->data.target = *(double*)val;
1634 case MONO_PATCH_INFO_LDSTR:
1635 image = load_image (aot_module, decode_value (p, &p));
1638 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
1640 case MONO_PATCH_INFO_RVA:
1641 case MONO_PATCH_INFO_DECLSEC:
1642 case MONO_PATCH_INFO_LDTOKEN:
1643 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1645 image = load_image (aot_module, decode_value (p, &p));
1648 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
1650 case MONO_PATCH_INFO_EXC_NAME:
1651 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1652 if (!ji->data.klass)
1654 ji->data.name = ji->data.klass->name;
1656 case MONO_PATCH_INFO_METHOD_REL:
1657 ji->data.offset = decode_value (p, &p);
1659 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
1660 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
1662 case MONO_PATCH_INFO_RGCTX_FETCH: {
1664 MonoJumpInfoRgctxEntry *entry;
1666 entry = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
1667 entry->method = decode_method_ref_2 (aot_module, p, &p);
1668 entry->in_mrgctx = decode_value (p, &p);
1669 entry->info_type = decode_value (p, &p);
1670 entry->data = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
1671 entry->data->type = decode_value (p, &p);
1673 res = decode_patch (aot_module, mp, entry->data, p, &p);
1676 ji->data.rgctx_entry = entry;
1680 g_warning ("unhandled type %d", ji->type);
1681 g_assert_not_reached ();
1693 decode_got_entry (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf, guint32 *got_offset)
1699 if (is_shared_got_patch (ji)) {
1700 *got_offset = decode_value (p, &p);
1702 if (aot_module->got [*got_offset]) {
1703 /* Already loaded */
1704 //printf ("HIT!\n");
1706 shared_p = aot_module->got_info + aot_module->got_info_offsets [*got_offset];
1708 res = decode_patch (aot_module, mp, ji, shared_p, &shared_p);
1713 res = decode_patch (aot_module, mp, ji, p, &p);
1722 static MonoJumpInfo*
1723 load_patch_info (MonoAotModule *aot_module, MonoMemPool *mp, int n_patches,
1724 guint32 got_index, guint32 **got_slots,
1725 guint8 *buf, guint8 **endbuf)
1727 MonoJumpInfo *patches;
1728 MonoJumpInfo *patch_info = NULL;
1730 guint32 last_offset;
1735 /* First load the type + offset table */
1737 patches = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
1739 for (pindex = 0; pindex < n_patches; ++pindex) {
1740 MonoJumpInfo *ji = &patches [pindex];
1745 //printf ("T: %d O: %d.\n", ji->type, ji->ip.i);
1746 ji->next = patch_info;
1750 *got_slots = g_malloc (sizeof (guint32) * n_patches);
1751 memset (*got_slots, 0xff, sizeof (guint32) * n_patches);
1753 /* Then load the other data */
1754 for (pindex = 0; pindex < n_patches; ++pindex) {
1755 MonoJumpInfo *ji = &patches [pindex];
1757 if (!decode_got_entry (aot_module, mp, ji, p, &p, (*got_slots) + pindex))
1760 if ((*got_slots) [pindex] == 0xffffffff)
1761 (*got_slots) [pindex] = got_index ++;
1768 g_free (*got_slots);
1775 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
1778 * Jump addresses cannot be patched by the trampoline code since it
1779 * does not have access to the caller's address. Instead, we collect
1780 * the addresses of the GOT slots pointing to a method, and patch
1781 * them after the method has been compiled.
1783 MonoJitDomainInfo *info = domain_jit_info (domain);
1786 mono_domain_lock (domain);
1787 if (!info->jump_target_got_slot_hash)
1788 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
1789 list = g_hash_table_lookup (info->jump_target_got_slot_hash, method);
1790 list = g_slist_prepend (list, got_slot);
1791 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
1792 mono_domain_unlock (domain);
1796 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
1798 MonoClass *klass = method->klass;
1799 guint32 method_index = mono_metadata_token_index (method->token) - 1;
1800 guint8 *code, *info;
1801 MonoAotModule *aot_module = klass->image->aot_module;
1806 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE)
1809 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
1810 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1811 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
1812 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
1815 g_assert (klass->inited);
1817 if ((domain != mono_get_root_domain ()) && (!(aot_module->opts & MONO_OPT_SHARED)))
1818 /* Non shared AOT code can't be used in other appdomains */
1821 if (aot_module->out_of_date)
1824 if (method->is_inflated) {
1825 if (!mono_method_is_generic_sharable_impl (method, FALSE))
1827 method = mono_method_get_declaring_generic_method (method);
1830 if (!method->token) {
1834 if (!method->wrapper_type || !aot_module->wrapper_info)
1839 /* Avoid doing a hash table lookup using strings if possible */
1840 if (!aot_module->wrappers_to_code)
1841 aot_module->wrappers_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
1842 code = g_hash_table_lookup (aot_module->wrappers_to_code, method);
1848 /* Try to find the wrapper among the wrapper info */
1849 /* FIXME: This is a hack to work around the fact that runtime invoke wrappers get assigned to some random class */
1850 if (method->wrapper_type == MONO_WRAPPER_RUNTIME_INVOKE) {
1851 char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
1852 full_name = g_strdup_printf ("(wrapper runtime-invoke):%s (%s)", method->name, tmpsig);
1855 full_name = mono_method_full_name (method, TRUE);
1858 /* Create a hash table to avoid repeated linear searches */
1859 if (!aot_module->wrappers_by_name) {
1860 aot_module->wrappers_by_name = g_hash_table_new (g_str_hash, g_str_equal);
1861 p = (char*)aot_module->wrapper_info;
1865 end = p + strlen (p) + 1;
1866 end = ALIGN_PTR_TO (end, 4);
1867 method_index = *(guint32*)end;
1869 /* The + 1 is used to distinguish a 0 index from a not-found one */
1870 g_hash_table_insert (aot_module->wrappers_by_name, p, GUINT_TO_POINTER (method_index + 1));
1874 method_index = GPOINTER_TO_UINT (g_hash_table_lookup (aot_module->wrappers_by_name, full_name));
1883 /* Needed by find_jit_info */
1885 if (!aot_module->wrappers)
1886 aot_module->wrappers = g_hash_table_new (NULL, NULL);
1887 g_hash_table_insert (aot_module->wrappers, GUINT_TO_POINTER (method_index), method);
1891 if (aot_module->code_offsets [method_index] == 0xffffffff) {
1892 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
1893 char *full_name = mono_method_full_name (method, TRUE);
1894 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.\n", full_name);
1900 code = &aot_module->code [aot_module->code_offsets [method_index]];
1901 info = &aot_module->method_info [aot_module->method_info_offsets [method_index]];
1904 if (!aot_module->methods_loaded)
1905 aot_module->methods_loaded = g_new0 (guint32, klass->image->tables [MONO_TABLE_METHOD].rows + 1);
1908 if ((aot_module->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
1911 if (mono_last_aot_method != -1) {
1912 if (mono_jit_stats.methods_aot > mono_last_aot_method)
1915 if (mono_jit_stats.methods_aot == mono_last_aot_method)
1916 printf ("LAST AOT METHOD: %s.%s.%s.\n", klass->name_space, klass->name, method->name);
1919 return mono_aot_load_method (domain, aot_module, method, code, info, method_index);
1923 mono_aot_load_method (MonoDomain *domain, MonoAotModule *aot_module, MonoMethod *method, guint8 *code, guint8 *info, int method_index)
1925 MonoClass *klass = method->klass;
1926 MonoJumpInfo *patch_info = NULL;
1928 int i, pindex, got_index = 0, n_patches, used_strings;
1929 gboolean non_got_patches, keep_patches = TRUE;
1930 guint8 *p, *ex_info;
1931 MonoJitInfo *jinfo = NULL;
1934 decode_klass_ref (aot_module, p, &p);
1936 if (!use_loaded_code) {
1940 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [mono_metadata_token_index (method->token) - 1]];
1941 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
1944 mono_domain_lock (domain);
1945 code2 = mono_code_manager_reserve (domain->code_mp, jinfo->code_size);
1946 mono_domain_unlock (domain);
1947 memcpy (code2, code, jinfo->code_size);
1948 mono_arch_flush_icache (code2, jinfo->code_size);
1952 if (aot_module->opts & MONO_OPT_SHARED)
1953 used_strings = decode_value (p, &p);
1957 for (i = 0; i < used_strings; i++) {
1958 guint token = decode_value (p, &p);
1959 mono_ldstr (mono_get_root_domain (), klass->image, mono_metadata_token_index (token));
1962 if (aot_module->opts & MONO_OPT_SHARED)
1963 keep_patches = FALSE;
1965 n_patches = decode_value (p, &p);
1967 keep_patches = FALSE;
1970 MonoJumpInfo *patches;
1976 mp = mono_mempool_new ();
1978 got_index = decode_value (p, &p);
1980 patches = load_patch_info (aot_module, mp, n_patches, got_index, &got_slots, p, &p);
1981 if (patches == NULL)
1984 non_got_patches = FALSE;
1985 for (pindex = 0; pindex < n_patches; ++pindex) {
1986 MonoJumpInfo *ji = &patches [pindex];
1988 if (is_got_patch (ji->type)) {
1989 if (!aot_module->got [got_slots [pindex]]) {
1990 aot_module->got [got_slots [pindex]] = mono_resolve_patch_target (method, domain, code, ji, TRUE);
1991 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
1992 register_jump_target_got_slot (domain, ji->data.method, &(aot_module->got [got_slots [pindex]]));
1994 ji->type = MONO_PATCH_INFO_NONE;
1997 non_got_patches = TRUE;
1999 if (non_got_patches) {
2001 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [mono_metadata_token_index (method->token) - 1]];
2002 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
2005 mono_arch_flush_icache (code, jinfo->code_size);
2006 make_writable (code, jinfo->code_size);
2007 mono_arch_patch_code (method, domain, code, patch_info, TRUE);
2013 mono_mempool_destroy (mp);
2018 mono_jit_stats.methods_aot++;
2020 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2021 char *full_name = mono_method_full_name (method, TRUE);
2024 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [method_index]];
2025 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
2028 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);
2032 aot_module->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
2034 init_plt (aot_module);
2036 if (method->wrapper_type)
2037 g_hash_table_insert (aot_module->wrappers_to_code, method, code);
2044 /* FIXME: The space in domain->mp is wasted */
2045 if (aot_module->opts & MONO_OPT_SHARED)
2046 /* No need to cache patches */
2047 mono_mempool_destroy (mp);
2056 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
2060 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2063 int i, method_index, pindex, got_index, n_patches, used_strings;
2064 gboolean keep_patches = TRUE;
2066 guint8 *code = NULL;
2068 MonoAotModule *aot_module = image->aot_module;
2074 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE)
2077 if (domain != mono_get_root_domain ())
2080 if (aot_module->out_of_date)
2083 if (aot_module->code_offsets [mono_metadata_token_index (token) - 1] == 0xffffffff) {
2087 method_index = mono_metadata_token_index (token) - 1;
2088 code = &aot_module->code [aot_module->code_offsets [method_index]];
2089 info = &aot_module->method_info [aot_module->method_info_offsets [method_index]];
2092 if (!aot_module->methods_loaded)
2093 aot_module->methods_loaded = g_new0 (guint32, image->tables [MONO_TABLE_METHOD].rows + 1);
2096 if ((aot_module->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
2099 if (mono_last_aot_method != -1) {
2100 if (mono_jit_stats.methods_aot > mono_last_aot_method)
2103 if (mono_jit_stats.methods_aot == mono_last_aot_method) {
2104 MonoMethod *method = mono_get_method (image, token, NULL);
2105 printf ("LAST AOT METHOD: %s.%s.%s.\n", method->klass->name_space, method->klass->name, method->name);
2110 klass = decode_klass_ref (aot_module, p, &p);
2112 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2113 MonoMethod *method = mono_get_method (image, token, NULL);
2114 char *full_name = mono_method_full_name (method, TRUE);
2115 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT FOUND AOT compiled code for %s %p %p\n", full_name, code, info);
2119 if (aot_module->opts & MONO_OPT_SHARED)
2120 used_strings = decode_value (p, &p);
2124 for (i = 0; i < used_strings; i++) {
2125 guint string_token = decode_value (p, &p);
2126 mono_ldstr (mono_get_root_domain (), image, mono_metadata_token_index (string_token));
2129 if (aot_module->opts & MONO_OPT_SHARED)
2130 keep_patches = FALSE;
2132 keep_patches = FALSE;
2134 n_patches = decode_value (p, &p);
2137 MonoJumpInfo *patches;
2143 mp = mono_mempool_new ();
2145 got_index = decode_value (p, &p);
2147 patches = load_patch_info (aot_module, mp, n_patches, got_index, &got_slots, p, &p);
2148 if (patches == NULL)
2151 for (pindex = 0; pindex < n_patches; ++pindex) {
2152 MonoJumpInfo *ji = &patches [pindex];
2154 if (is_got_patch (ji->type)) {
2155 if (!aot_module->got [got_slots [pindex]]) {
2156 aot_module->got [got_slots [pindex]] = mono_resolve_patch_target (NULL, domain, code, ji, TRUE);
2157 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
2158 register_jump_target_got_slot (domain, ji->data.method, &(aot_module->got [got_slots [pindex]]));
2160 ji->type = MONO_PATCH_INFO_NONE;
2167 mono_mempool_destroy (mp);
2170 mono_jit_stats.methods_aot++;
2174 aot_module->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
2176 init_plt (aot_module);
2181 mono_runtime_class_init (mono_class_vtable (domain, klass));
2186 /* FIXME: The space in domain->mp is wasted */
2187 if (aot_module->opts & MONO_OPT_SHARED)
2188 /* No need to cache patches */
2189 mono_mempool_destroy (mp);
2197 } IsGotEntryUserData;
2200 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
2202 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
2203 MonoAotModule *aot_module = (MonoAotModule*)value;
2205 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->got_size)))
2210 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
2212 IsGotEntryUserData user_data;
2217 user_data.addr = addr;
2218 user_data.res = FALSE;
2220 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
2223 return user_data.res;
2228 MonoAotModule *module;
2229 } FindAotModuleUserData;
2232 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
2234 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
2235 MonoAotModule *aot_module = (MonoAotModule*)value;
2237 if ((data->addr >= (guint8*)(aot_module->code)) && (data->addr < (guint8*)(aot_module->code_end)))
2238 data->module = aot_module;
2241 static inline MonoAotModule*
2242 find_aot_module (guint8 *code)
2244 FindAotModuleUserData user_data;
2249 /* Reading these need no locking */
2250 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
2253 user_data.addr = code;
2254 user_data.module = NULL;
2257 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
2260 return user_data.module;
2264 * mono_aot_set_make_unreadable:
2266 * Set whenever to make all mmaped memory unreadable. In conjuction with a
2267 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
2270 mono_aot_set_make_unreadable (gboolean unreadable)
2272 make_unreadable = unreadable;
2276 MonoAotModule *module;
2281 find_map (gpointer key, gpointer value, gpointer user_data)
2283 MonoAotModule *module = (MonoAotModule*)value;
2284 FindMapUserData *data = (FindMapUserData*)user_data;
2287 if ((data->ptr >= module->mem_begin) && (data->ptr < module->mem_end))
2288 data->module = module;
2291 static MonoAotModule*
2292 find_module_for_addr (void *ptr)
2294 FindMapUserData data;
2296 if (!make_unreadable)
2300 data.ptr = (guint8*)ptr;
2303 g_hash_table_foreach (aot_modules, (GHFunc)find_map, &data);
2310 * mono_aot_is_pagefault:
2312 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
2313 * within memory allocated by this module.
2316 mono_aot_is_pagefault (void *ptr)
2318 if (!make_unreadable)
2321 return find_module_for_addr (ptr) != NULL;
2325 * mono_aot_handle_pagefault:
2327 * Handle a pagefault caused by an unreadable page by making it readable again.
2330 mono_aot_handle_pagefault (void *ptr)
2332 #ifndef PLATFORM_WIN32
2333 guint8* start = (guint8*)ROUND_DOWN (((gssize)ptr), PAGESIZE);
2337 res = mprotect (start, PAGESIZE, PROT_READ|PROT_WRITE|PROT_EXEC);
2338 g_assert (res == 0);
2349 printf ("\nNative stacktrace:\n\n");
2351 size = backtrace (array, 256);
2352 names = backtrace_symbols (array, size);
2353 for (i =0; i < size; ++i) {
2354 printf ("\t%s\n", names [i]);
2364 * mono_aot_plt_resolve:
2366 * This function is called by the entries in the PLT to resolve the actual method that
2367 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
2370 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
2372 #ifdef MONO_ARCH_AOT_SUPPORTED
2373 guint8 *p, *target, *plt_entry;
2375 MonoAotModule *module = (MonoAotModule*)aot_module;
2379 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
2381 p = &module->plt_info [plt_info_offset];
2383 ji.type = decode_value (p, &p);
2385 mp = mono_mempool_new_size (512);
2386 res = decode_patch (module, mp, &ji, p, &p);
2387 // FIXME: Error handling (how ?)
2390 target = mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE);
2392 mono_mempool_destroy (mp);
2394 /* Patch the PLT entry with target which might be the actual method not a trampoline */
2395 plt_entry = mono_aot_get_plt_entry (code);
2396 g_assert (plt_entry);
2397 mono_arch_patch_plt_entry (plt_entry, target);
2401 g_assert_not_reached ();
2409 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
2410 * method in the module is loaded to avoid committing memory by writing to it.
2411 * LOCKING: Assumes the AOT lock is held.
2414 init_plt (MonoAotModule *info)
2416 #ifdef MONO_ARCH_AOT_SUPPORTED
2418 guint8 *buf = info->plt;
2419 #elif defined(__x86_64__)
2421 #elif defined(__arm__)
2426 if (info->plt_inited)
2429 tramp = mono_create_specific_trampoline (info, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
2432 /* Initialize the first PLT entry */
2433 make_writable (info->plt, info->plt_end - info->plt);
2434 x86_jump_code (buf, tramp);
2435 #elif defined(__x86_64__) || defined(__arm__)
2437 * Initialize the entries in the plt_jump_table to point to the default targets.
2439 n_entries = info->plt_jump_table_size / sizeof (gpointer);
2441 /* The first entry points to the AOT trampoline */
2442 ((gpointer*)info->plt_jump_table)[0] = tramp;
2443 for (i = 1; i < n_entries; ++i)
2444 /* All the default entries point to the first entry */
2445 ((gpointer*)info->plt_jump_table)[i] = info->plt;
2447 g_assert_not_reached ();
2450 info->plt_inited = TRUE;
2455 * mono_aot_get_plt_entry:
2457 * Return the address of the PLT entry called by the code at CODE if exists.
2460 mono_aot_get_plt_entry (guint8 *code)
2462 MonoAotModule *aot_module = find_aot_module (code);
2463 #if defined(__arm__)
2470 #if defined(__i386__) || defined(__x86_64__)
2471 if (code [-5] == 0xe8) {
2472 guint32 disp = *(guint32*)(code - 4);
2473 guint8 *target = code + disp;
2475 if ((target >= (guint8*)(aot_module->plt)) && (target < (guint8*)(aot_module->plt_end)))
2478 #elif defined(__arm__)
2479 ins = ((guint32*)(gpointer)code) [-1];
2481 /* Should be a 'bl' */
2482 if ((((ins >> 25) & 0x7) == 0x5) && (((ins >> 24) & 0x1) == 0x1)) {
2483 gint32 disp = ((gint32)ins) & 0xffffff;
2484 guint8 *target = code - 4 + 8 + (disp * 4);
2486 if ((target >= (guint8*)(aot_module->plt)) && (target < (guint8*)(aot_module->plt_end)))
2490 g_assert_not_reached ();
2497 * mono_aot_get_plt_info_offset:
2499 * Return the PLT info offset belonging to the plt entry called by CODE.
2502 mono_aot_get_plt_info_offset (gssize *regs, guint8 *code)
2504 guint8 *plt_entry = mono_aot_get_plt_entry (code);
2506 g_assert (plt_entry);
2508 /* The offset is embedded inside the code after the plt entry */
2509 #if defined(__i386__)
2510 return *(guint32*)(plt_entry + 5);
2511 #elif defined(__x86_64__)
2512 return *(guint32*)(plt_entry + 6);
2513 #elif defined(__arm__)
2514 /* The offset is stored as the 5th word of the plt entry */
2515 return ((guint32*)plt_entry) [4];
2517 g_assert_not_reached ();
2523 load_named_code (MonoAotModule *amodule, const char *name)
2527 int n_patches, got_index, pindex;
2533 symbol = g_strdup_printf ("%s", name);
2534 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&code);
2537 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
2539 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT FOUND function '%s' in AOT file '%s'.\n", name, amodule->aot_name);
2543 symbol = g_strdup_printf ("%s_p", name);
2544 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&p);
2547 /* Nothing to patch */
2550 /* Similar to mono_aot_load_method () */
2552 n_patches = decode_value (p, &p);
2555 MonoJumpInfo *patches;
2558 mp = mono_mempool_new ();
2560 got_index = decode_value (p, &p);
2562 patches = load_patch_info (amodule, mp, n_patches, got_index, &got_slots, p, &p);
2565 for (pindex = 0; pindex < n_patches; ++pindex) {
2566 MonoJumpInfo *ji = &patches [pindex];
2570 * When this code is executed, the runtime may not yet initalized, so
2571 * resolve the patch info by hand.
2573 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
2574 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
2575 target = mono_get_lmf_addr;
2576 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint")) {
2577 target = mono_thread_force_interruption_checkpoint;
2578 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
2579 target = mono_exception_from_token;
2580 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
2581 target = mono_get_throw_exception ();
2583 } else if (!strcmp (ji->data.name, "mono_amd64_throw_exception")) {
2584 target = mono_amd64_throw_exception;
2587 } else if (!strcmp (ji->data.name, "mono_arm_throw_exception")) {
2588 target = mono_arm_throw_exception;
2590 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
2591 int tramp_type2 = atoi (ji->data.name + strlen ("trampoline_func_"));
2592 target = (gpointer)mono_get_trampoline_func (tramp_type2);
2593 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
2594 guint32 slot = atoi (ji->data.name + strlen ("specific_trampoline_lazy_fetch_"));
2595 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
2597 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
2598 g_assert_not_reached ();
2602 /* Hopefully the code doesn't have patches which need method or
2605 target = mono_resolve_patch_target (NULL, NULL, code, ji, FALSE);
2608 amodule->got [got_slots [pindex]] = target;
2613 mono_mempool_destroy (mp);
2620 * Return the piece of code identified by NAME from the mscorlib AOT file.
2623 mono_aot_get_named_code (const char *name)
2626 MonoAotModule *amodule;
2628 image = mono_defaults.corlib;
2631 amodule = image->aot_module;
2634 return load_named_code (amodule, name);
2638 * Return a specific trampoline from the AOT file.
2641 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
2643 MonoAotModule *amodule;
2644 int index, tramp_size;
2645 guint8 *code, *tramp;
2646 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
2648 /* Currently, we keep all trampolines in the mscorlib AOT image */
2649 image = mono_defaults.corlib;
2654 amodule = image->aot_module;
2657 if (amodule->trampoline_index == amodule->num_trampolines)
2658 g_error ("Ran out of trampolines in '%s' (%d)\n", image->name, amodule->num_trampolines);
2660 index = amodule->trampoline_index ++;
2664 if (!generic_trampolines [tramp_type]) {
2667 symbol = g_strdup_printf ("generic_trampoline_%d", tramp_type);
2668 generic_trampolines [tramp_type] = mono_aot_get_named_code (symbol);
2672 tramp = generic_trampolines [tramp_type];
2675 amodule->got [amodule->first_trampoline_got_offset + (index *2)] = tramp;
2676 amodule->got [amodule->first_trampoline_got_offset + (index *2) + 1] = arg1;
2680 #elif defined(__arm__)
2684 g_assert_not_reached ();
2687 code = amodule->trampolines + (index * tramp_size);
2689 *code_len = tramp_size;
2695 mono_aot_get_unbox_trampoline (MonoMethod *method)
2697 guint32 method_index = mono_metadata_token_index (method->token) - 1;
2698 MonoAotModule *amodule;
2702 amodule = method->klass->image->aot_module;
2705 symbol = g_strdup_printf ("unbox_trampoline_%d", method_index);
2706 code = load_named_code (amodule, symbol);
2712 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
2717 symbol = g_strdup_printf ("rgctx_fetch_trampoline_%u", slot);
2718 code = load_named_code (mono_defaults.corlib->aot_module, symbol);
2724 * mono_aot_get_n_pagefaults:
2726 * Return the number of times handle_pagefault is called.
2729 mono_aot_get_n_pagefaults (void)
2731 return n_pagefaults;
2738 mono_aot_init (void)
2743 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
2749 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
2755 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2761 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2767 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
2773 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2779 mono_aot_is_pagefault (void *ptr)
2785 mono_aot_set_make_unreadable (gboolean unreadable)
2790 mono_aot_get_n_pagefaults (void)
2796 mono_aot_handle_pagefault (void *ptr)
2801 mono_aot_get_plt_entry (guint8 *code)
2807 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
2813 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2819 mono_aot_create_specific_trampolines (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
2821 g_assert_not_reached ();
2826 mono_aot_get_named_code (char *name)
2828 g_assert_not_reached ();
2833 mono_aot_get_unbox_trampoline (MonoMethod *method)
2835 g_assert_not_reached ();