2 * aot-runtime.c: mono Ahead of Time compiler
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Zoltan Varga (vargaz@gmail.com)
8 * (C) 2002 Ximian, Inc.
12 #include <sys/types.h>
18 #ifdef HAVE_SYS_MMAN_H
27 #ifdef HAVE_EXECINFO_H
34 #ifdef HAVE_SYS_WAIT_H
35 #include <sys/wait.h> /* for WIFEXITED, WEXITSTATUS */
38 #include <mono/metadata/tabledefs.h>
39 #include <mono/metadata/class.h>
40 #include <mono/metadata/object.h>
41 #include <mono/metadata/tokentype.h>
42 #include <mono/metadata/appdomain.h>
43 #include <mono/metadata/debug-helpers.h>
44 #include <mono/metadata/assembly.h>
45 #include <mono/metadata/metadata-internals.h>
46 #include <mono/metadata/marshal.h>
47 #include <mono/metadata/gc-internal.h>
48 #include <mono/metadata/monitor.h>
49 #include <mono/metadata/threads-types.h>
50 #include <mono/utils/mono-logger.h>
51 #include <mono/utils/mono-mmap.h>
52 #include "mono/utils/mono-compiler.h"
53 #include <mono/utils/mono-counters.h>
61 #define SHARED_EXT ".dll"
62 #elif (defined(__ppc__) || defined(__powerpc__) || defined(__ppc64__)) || defined(__MACH__)
63 #define SHARED_EXT ".dylib"
65 #define SHARED_EXT ".so"
68 #define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
69 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
71 typedef struct MonoAotModule {
73 /* Optimization flags used to compile the module */
75 /* Pointer to the Global Offset Table */
77 GHashTable *name_cache;
78 GHashTable *extra_methods;
79 /* Maps methods to their code */
80 GHashTable *method_to_code;
81 /* Maps pointers into the method info to the methods themselves */
82 GHashTable *method_ref_to_method;
83 MonoAssemblyName *image_names;
85 MonoAssembly *assembly;
86 MonoImage **image_table;
87 guint32 image_table_len;
96 guint32 *code_offsets;
98 guint32 *method_info_offsets;
100 guint32 *got_info_offsets;
102 guint32 *ex_info_offsets;
103 guint32 *method_order;
104 guint32 *method_order_end;
106 guint32 *class_info_offsets;
107 guint32 *methods_loaded;
108 guint16 *class_name_table;
109 guint32 *extra_method_table;
110 guint32 *extra_method_info_offsets;
111 guint8 *extra_method_info;
114 /* Points to the trampolines */
115 guint8 *trampolines [MONO_AOT_TRAMP_NUM];
116 /* The first unused trampoline of each kind */
117 guint32 trampoline_index [MONO_AOT_TRAMP_NUM];
119 MonoAotFileInfo info;
125 static GHashTable *aot_modules;
126 #define mono_aot_lock() EnterCriticalSection (&aot_mutex)
127 #define mono_aot_unlock() LeaveCriticalSection (&aot_mutex)
128 static CRITICAL_SECTION aot_mutex;
131 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
132 * AOT modules registered by mono_aot_register_module ().
134 static GHashTable *static_aot_modules;
137 * Whenever to AOT compile loaded assemblies on demand and store them in
138 * a cache under $HOME/.mono/aot-cache.
140 static gboolean use_aot_cache = FALSE;
143 * Whenever to spawn a new process to AOT a file or do it in-process. Only relevant if
144 * use_aot_cache is TRUE.
146 static gboolean spawn_compiler = TRUE;
149 static gint32 mono_last_aot_method = -1;
151 static gboolean make_unreadable = FALSE;
152 static guint32 name_table_accesses = 0;
154 /* Used to speed-up find_aot_module () */
155 static gsize aot_code_low_addr = (gssize)-1;
156 static gsize aot_code_high_addr = 0;
159 init_plt (MonoAotModule *info);
161 /*****************************************************/
163 /*****************************************************/
166 load_image (MonoAotModule *module, int index)
168 MonoAssembly *assembly;
169 MonoImageOpenStatus status;
171 g_assert (index < module->image_table_len);
173 if (module->image_table [index])
174 return module->image_table [index];
175 if (module->out_of_date)
178 assembly = mono_assembly_load (&module->image_names [index], NULL, &status);
180 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);
181 module->out_of_date = TRUE;
185 if (strcmp (assembly->image->guid, module->image_guids [index])) {
186 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);
187 module->out_of_date = TRUE;
191 module->image_table [index] = assembly->image;
192 return assembly->image;
197 decode_value (guint8 *ptr, guint8 **rptr)
202 if ((b & 0x80) == 0){
205 } else if ((b & 0x40) == 0){
206 len = ((b & 0x3f) << 8 | ptr [1]);
208 } else if (b != 0xff) {
209 len = ((b & 0x1f) << 24) |
216 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
222 //printf ("DECODE: %d.\n", len);
227 decode_method_ref_2 (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
230 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf);
232 static MonoGenericInst*
233 decode_generic_inst (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
236 MonoType **type_argv;
237 MonoGenericInst *inst;
240 type_argc = decode_value (p, &p);
241 type_argv = g_new0 (MonoType*, type_argc);
243 for (i = 0; i < type_argc; ++i) {
244 MonoClass *pclass = decode_klass_ref (module, p, &p);
249 type_argv [i] = &pclass->byval_arg;
252 inst = mono_metadata_get_generic_inst (type_argc, type_argv);
261 decode_generic_context (MonoAotModule *module, MonoGenericContext *ctx, guint8 *buf, guint8 **endbuf)
263 gboolean has_class_inst, has_method_inst;
266 has_class_inst = decode_value (p, &p);
267 if (has_class_inst) {
268 ctx->class_inst = decode_generic_inst (module, p, &p);
269 if (!ctx->class_inst)
272 has_method_inst = decode_value (p, &p);
273 if (has_method_inst) {
274 ctx->method_inst = decode_generic_inst (module, p, &p);
275 if (!ctx->method_inst)
284 decode_klass_ref (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
287 MonoClass *klass, *eklass;
291 token = decode_value (p, &p);
296 if (mono_metadata_token_table (token) == 0) {
297 image = load_image (module, decode_value (p, &p));
300 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF + token);
301 } else if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
302 if (token == MONO_TOKEN_TYPE_SPEC) {
303 MonoTypeEnum type = decode_value (p, &p);
305 if (type == MONO_TYPE_GENERICINST) {
307 MonoGenericContext ctx;
310 gclass = decode_klass_ref (module, p, &p);
311 g_assert (gclass->generic_container);
313 memset (&ctx, 0, sizeof (ctx));
314 ctx.class_inst = decode_generic_inst (module, p, &p);
317 type = mono_class_inflate_generic_type (&gclass->byval_arg, &ctx);
318 klass = mono_class_from_mono_type (type);
319 mono_metadata_free_type (type);
320 } else if ((type == MONO_TYPE_VAR) || (type == MONO_TYPE_MVAR)) {
322 MonoGenericContainer *container;
324 int num = decode_value (p, &p);
325 gboolean is_method = decode_value (p, &p);
328 MonoMethod *method_def;
329 g_assert (type == MONO_TYPE_MVAR);
330 method_def = decode_method_ref_2 (module, p, &p);
334 container = mono_method_get_generic_container (method_def);
336 MonoClass *class_def;
337 g_assert (type == MONO_TYPE_VAR);
338 class_def = decode_klass_ref (module, p, &p);
342 container = class_def->generic_container;
345 g_assert (container);
347 // FIXME: Memory management
348 t = g_new0 (MonoType, 1);
350 t->data.generic_param = mono_generic_container_get_param (container, num);
352 // FIXME: Maybe use types directly to avoid
353 // the overhead of creating MonoClass-es
354 klass = mono_class_from_mono_type (t);
358 g_assert_not_reached ();
361 image = load_image (module, decode_value (p, &p));
364 klass = mono_class_get (image, token);
366 } else if (token == MONO_TOKEN_TYPE_DEF) {
368 image = load_image (module, decode_value (p, &p));
371 rank = decode_value (p, &p);
372 eklass = decode_klass_ref (module, p, &p);
373 klass = mono_array_class_get (eklass, rank);
375 g_assert_not_reached ();
378 mono_class_init (klass);
384 static MonoClassField*
385 decode_field_info (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
387 MonoClass *klass = decode_klass_ref (module, buf, &buf);
394 token = MONO_TOKEN_FIELD_DEF + decode_value (p, &p);
398 return mono_class_get_field (klass, token);
402 * can_method_ref_match_method:
404 * Determine if calling decode_method_ref_2 on P could return the same method as
405 * METHOD. This is an optimization to avoid calling decode_method_ref_2 () which
406 * would create MonoMethods which are not needed etc.
409 can_method_ref_match_method (MonoAotModule *module, guint8 *buf, MonoMethod *method)
412 guint32 image_index, value;
414 /* Keep this in sync with decode_method_ref () */
415 value = decode_value (p, &p);
416 image_index = value >> 24;
418 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
419 guint32 wrapper_type;
421 if (!method->wrapper_type)
424 wrapper_type = decode_value (p, &p);
426 if (method->wrapper_type != wrapper_type)
428 } else if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
429 if (method->wrapper_type)
439 * Decode a method reference, and return its image and token. This avoids loading
440 * metadata for the method if the caller does not need it. If the method has no token,
441 * then it is loaded from metadata and METHOD is set to the method instance.
444 decode_method_ref (MonoAotModule *module, guint32 *token, MonoMethod **method, gboolean *no_aot_trampoline, guint8 *buf, guint8 **endbuf)
446 guint32 image_index, value;
447 MonoImage *image = NULL;
452 if (no_aot_trampoline)
453 *no_aot_trampoline = FALSE;
455 value = decode_value (p, &p);
456 image_index = value >> 24;
458 if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
459 if (no_aot_trampoline)
460 *no_aot_trampoline = TRUE;
461 value = decode_value (p, &p);
462 image_index = value >> 24;
465 if (image_index == MONO_AOT_METHODREF_WRAPPER) {
466 guint32 wrapper_type;
468 wrapper_type = decode_value (p, &p);
471 image = mono_defaults.corlib;
473 switch (wrapper_type) {
474 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: {
475 MonoMethod *m = decode_method_ref_2 (module, p, &p);
479 mono_class_init (m->klass);
480 *method = mono_marshal_get_remoting_invoke_with_check (m);
483 case MONO_WRAPPER_PROXY_ISINST: {
484 MonoClass *klass = decode_klass_ref (module, p, &p);
487 *method = mono_marshal_get_proxy_cancast (klass);
490 case MONO_WRAPPER_LDFLD:
491 case MONO_WRAPPER_LDFLDA:
492 case MONO_WRAPPER_STFLD:
493 case MONO_WRAPPER_ISINST: {
494 MonoClass *klass = decode_klass_ref (module, p, &p);
497 if (wrapper_type == MONO_WRAPPER_LDFLD)
498 *method = mono_marshal_get_ldfld_wrapper (&klass->byval_arg);
499 else if (wrapper_type == MONO_WRAPPER_LDFLDA)
500 *method = mono_marshal_get_ldflda_wrapper (&klass->byval_arg);
501 else if (wrapper_type == MONO_WRAPPER_STFLD)
502 *method = mono_marshal_get_stfld_wrapper (&klass->byval_arg);
503 else if (wrapper_type == MONO_WRAPPER_ISINST)
504 *method = mono_marshal_get_isinst (klass);
506 g_assert_not_reached ();
509 case MONO_WRAPPER_LDFLD_REMOTE:
510 *method = mono_marshal_get_ldfld_remote_wrapper (NULL);
512 case MONO_WRAPPER_STFLD_REMOTE:
513 *method = mono_marshal_get_stfld_remote_wrapper (NULL);
515 case MONO_WRAPPER_ALLOC: {
516 int atype = decode_value (p, &p);
518 *method = mono_gc_get_managed_allocator_by_type (atype);
521 case MONO_WRAPPER_STELEMREF:
522 *method = mono_marshal_get_stelemref ();
524 case MONO_WRAPPER_STATIC_RGCTX_INVOKE: {
525 MonoMethod *m = decode_method_ref_2 (module, p, &p);
529 *method = mono_marshal_get_static_rgctx_invoke (m);
532 case MONO_WRAPPER_SYNCHRONIZED: {
533 MonoMethod *m = decode_method_ref_2 (module, p, &p);
537 *method = mono_marshal_get_synchronized_wrapper (m);
540 case MONO_WRAPPER_UNKNOWN: {
541 MonoMethodDesc *desc;
542 MonoMethod *orig_method;
543 int subtype = decode_value (p, &p);
545 if (subtype == MONO_AOT_WRAPPER_MONO_ENTER)
546 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
547 else if (subtype == MONO_AOT_WRAPPER_MONO_EXIT)
548 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
550 g_assert_not_reached ();
551 orig_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
552 g_assert (orig_method);
553 mono_method_desc_free (desc);
554 *method = mono_monitor_get_fast_path (orig_method);
558 g_assert_not_reached ();
560 } else if (image_index == MONO_AOT_METHODREF_WRAPPER_NAME) {
561 /* Can't decode these */
562 g_assert_not_reached ();
563 } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
564 image_index = decode_value (p, &p);
565 *token = decode_value (p, &p);
567 image = load_image (module, image_index);
570 } else if (image_index == MONO_AOT_METHODREF_GINST) {
572 MonoGenericContext ctx;
575 * These methods do not have a token which resolves them, so we
576 * resolve them immediately.
578 klass = decode_klass_ref (module, p, &p);
582 image_index = decode_value (p, &p);
583 *token = decode_value (p, &p);
585 image = load_image (module, image_index);
589 *method = mono_get_method_full (image, *token, NULL, NULL);
593 memset (&ctx, 0, sizeof (ctx));
595 if (FALSE && klass->generic_class) {
596 ctx.class_inst = klass->generic_class->context.class_inst;
597 ctx.method_inst = NULL;
599 *method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
602 memset (&ctx, 0, sizeof (ctx));
604 if (!decode_generic_context (module, &ctx, p, &p))
607 *method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
608 } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
612 klass = decode_klass_ref (module, p, &p);
615 method_type = decode_value (p, &p);
617 switch (method_type) {
619 *method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
622 *method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
625 *method = mono_class_get_method_from_name (klass, "Get", -1);
628 *method = mono_class_get_method_from_name (klass, "Address", -1);
631 *method = mono_class_get_method_from_name (klass, "Set", -1);
634 g_assert_not_reached ();
637 g_assert (image_index < MONO_AOT_METHODREF_MIN);
638 *token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
640 image = load_image (module, image_index);
651 * decode_method_ref_2:
653 * Similar to decode_method_ref, but resolve and return the method itself.
656 decode_method_ref_2 (MonoAotModule *module, guint8 *buf, guint8 **endbuf)
660 MonoImage *image = decode_method_ref (module, &token, &method, NULL, buf, endbuf);
666 method = mono_get_method (image, token, NULL);
672 make_writable (guint8* addr, guint32 len)
678 g_error ("Attempt to make AOT memory writable while running in aot-only mode.\n");
680 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1));
681 pages = (addr + len - page_start + mono_pagesize () - 1) / mono_pagesize ();
683 err = mono_mprotect (page_start, pages * mono_pagesize (), MONO_MMAP_READ | MONO_MMAP_WRITE | MONO_MMAP_EXEC);
688 create_cache_structure (void)
694 home = g_get_home_dir ();
698 tmp = g_build_filename (home, ".mono", NULL);
699 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
700 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
701 #ifdef PLATFORM_WIN32
704 err = mkdir (tmp, 0777);
707 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
713 tmp = g_build_filename (home, ".mono", "aot-cache", NULL);
714 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
715 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT creating directory %s", tmp);
716 #ifdef PLATFORM_WIN32
719 err = mkdir (tmp, 0777);
722 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed: %s", g_strerror (errno));
731 * load_aot_module_from_cache:
733 * Experimental code to AOT compile loaded assemblies on demand.
736 * - Add environment variable MONO_AOT_CACHE_OPTIONS
737 * - Add options for controlling the cache size
738 * - Handle full cache by deleting old assemblies lru style
739 * - Add options for excluding assemblies during development
740 * - Maybe add a threshold after an assembly is AOT compiled
741 * - invoking a new mono process is a security risk
742 * - recompile the AOT module if one of its dependencies changes
745 load_aot_module_from_cache (MonoAssembly *assembly, char **aot_name)
747 char *fname, *cmd, *tmp2, *aot_options;
756 if (assembly->image->dynamic)
759 create_cache_structure ();
761 home = g_get_home_dir ();
763 tmp2 = g_strdup_printf ("%s-%s%s", assembly->image->assembly_name, assembly->image->guid, SHARED_EXT);
764 fname = g_build_filename (home, ".mono", "aot-cache", tmp2, NULL);
768 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT trying to load from cache: '%s'.", fname);
769 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
772 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT not found.");
774 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT precompiling assembly '%s'... ", assembly->image->name);
776 aot_options = g_strdup_printf ("outfile=%s", fname);
778 if (spawn_compiler) {
779 /* FIXME: security */
780 /* FIXME: Has to pass the assembly loading path to the child process */
781 cmd = g_strdup_printf ("mono -O=all --aot=%s %s", aot_options, assembly->image->name);
783 res = g_spawn_command_line_sync (cmd, &out, &err, &exit_status, NULL);
785 #if !defined(PLATFORM_WIN32) && !defined(__ppc__) && !defined(__ppc64__) && !defined(__powerpc__)
787 if (!WIFEXITED (exit_status) && (WEXITSTATUS (exit_status) == 0))
788 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed: %s.", err);
790 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
797 res = mono_compile_assembly (assembly, mono_parse_default_optimizations (NULL), aot_options);
799 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT failed.");
801 mono_trace (G_LOG_LEVEL_MESSAGE, MONO_TRACE_AOT, "AOT succeeded.");
805 module = mono_dl_open (fname, MONO_DL_LAZY, NULL);
807 g_free (aot_options);
814 find_symbol (MonoDl *module, gpointer *globals, const char *name, gpointer *value)
820 for (i = 0; globals [i]; i+= 2) {
821 if (strcmp (globals [i], name) == 0) {
822 *value = globals [i + 1];
827 mono_dl_symbol (module, name, value);
832 load_aot_module (MonoAssembly *assembly, gpointer user_data)
835 MonoAotModule *amodule;
837 gboolean usable = TRUE;
838 char *saved_guid = NULL;
839 char *aot_version = NULL;
840 char *runtime_version, *build_info;
841 char *opt_flags = NULL;
843 gboolean full_aot = FALSE;
844 MonoAotFileInfo *file_info = NULL;
848 if (mono_compile_aot)
851 if (assembly->image->aot_module)
853 * Already loaded. This can happen because the assembly loading code might invoke
854 * the assembly load hooks multiple times for the same assembly.
858 if (assembly->image->dynamic)
861 if (mono_security_get_mode () == MONO_SECURITY_MODE_CAS)
865 if (static_aot_modules)
866 globals = g_hash_table_lookup (static_aot_modules, assembly->aname.name);
872 /* Statically linked AOT module */
874 aot_name = g_strdup_printf ("%s", assembly->aname.name);
875 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "Found statically linked AOT module '%s'.\n", aot_name);
878 sofile = load_aot_module_from_cache (assembly, &aot_name);
881 aot_name = g_strdup_printf ("%s%s", assembly->image->name, SHARED_EXT);
883 sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
886 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed to load AOT module %s: %s\n", aot_name, err);
892 if (!sofile && !globals) {
894 fprintf (stderr, "Failed to load AOT module '%s' in aot-only mode.\n", aot_name);
901 find_symbol (sofile, globals, "mono_assembly_guid", (gpointer *) &saved_guid);
902 find_symbol (sofile, globals, "mono_aot_version", (gpointer *) &aot_version);
903 find_symbol (sofile, globals, "mono_aot_opt_flags", (gpointer *)&opt_flags);
904 find_symbol (sofile, globals, "mono_runtime_version", (gpointer *)&runtime_version);
905 find_symbol (sofile, globals, "mono_aot_got_addr", (gpointer *)&got_addr);
907 if (!aot_version || strcmp (aot_version, MONO_AOT_FILE_VERSION)) {
908 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);
912 if (!saved_guid || strcmp (assembly->image->guid, saved_guid)) {
913 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is out of date.\n", aot_name);
918 build_info = mono_get_runtime_build_info ();
919 if (!runtime_version || ((strlen (runtime_version) > 0 && strcmp (runtime_version, build_info)))) {
920 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, build_info);
928 find_symbol (sofile, globals, "mono_aot_full_aot", (gpointer *)&full_aot_str);
930 if (full_aot_str && !strcmp (full_aot_str, "TRUE"))
934 if (mono_aot_only && !full_aot) {
935 fprintf (stderr, "Can't use AOT image '%s' in aot-only mode because it is not compiled with --aot=full.\n", aot_name);
938 if (!mono_aot_only && full_aot) {
939 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module %s is compiled with --aot=full.\n", aot_name);
945 fprintf (stderr, "Failed to load AOT module '%s' while running in aot-only mode.\n", aot_name);
950 mono_dl_close (sofile);
951 assembly->image->aot_module = NULL;
955 find_symbol (sofile, globals, "mono_aot_file_info", (gpointer*)&file_info);
956 g_assert (file_info);
958 amodule = g_new0 (MonoAotModule, 1);
959 amodule->aot_name = aot_name;
960 amodule->assembly = assembly;
962 memcpy (&amodule->info, file_info, sizeof (*file_info));
964 amodule->got = *got_addr;
965 amodule->got [0] = assembly->image;
966 amodule->globals = globals;
967 amodule->sofile = sofile;
968 amodule->method_to_code = g_hash_table_new (mono_aligned_addr_hash, NULL);
970 sscanf (opt_flags, "%d", &amodule->opts);
972 /* Read image table */
974 guint32 table_len, i;
977 find_symbol (sofile, globals, "mono_image_table", (gpointer *)&table);
980 table_len = *(guint32*)table;
981 table += sizeof (guint32);
982 amodule->image_table = g_new0 (MonoImage*, table_len);
983 amodule->image_names = g_new0 (MonoAssemblyName, table_len);
984 amodule->image_guids = g_new0 (char*, table_len);
985 amodule->image_table_len = table_len;
986 for (i = 0; i < table_len; ++i) {
987 MonoAssemblyName *aname = &(amodule->image_names [i]);
989 aname->name = g_strdup (table);
990 table += strlen (table) + 1;
991 amodule->image_guids [i] = g_strdup (table);
992 table += strlen (table) + 1;
994 aname->culture = g_strdup (table);
995 table += strlen (table) + 1;
996 memcpy (aname->public_key_token, table, strlen (table) + 1);
997 table += strlen (table) + 1;
999 table = ALIGN_PTR_TO (table, 8);
1000 aname->flags = *(guint32*)table;
1002 aname->major = *(guint32*)table;
1004 aname->minor = *(guint32*)table;
1006 aname->build = *(guint32*)table;
1008 aname->revision = *(guint32*)table;
1013 /* Read method and method_info tables */
1014 find_symbol (sofile, globals, "method_offsets", (gpointer*)&amodule->code_offsets);
1015 find_symbol (sofile, globals, "methods", (gpointer*)&amodule->code);
1016 find_symbol (sofile, globals, "methods_end", (gpointer*)&amodule->code_end);
1017 find_symbol (sofile, globals, "method_info_offsets", (gpointer*)&amodule->method_info_offsets);
1018 find_symbol (sofile, globals, "method_info", (gpointer*)&amodule->method_info);
1019 find_symbol (sofile, globals, "ex_info_offsets", (gpointer*)&amodule->ex_info_offsets);
1020 find_symbol (sofile, globals, "ex_info", (gpointer*)&amodule->ex_info);
1021 find_symbol (sofile, globals, "method_order", (gpointer*)&amodule->method_order);
1022 find_symbol (sofile, globals, "method_order_end", (gpointer*)&amodule->method_order_end);
1023 find_symbol (sofile, globals, "class_info", (gpointer*)&amodule->class_info);
1024 find_symbol (sofile, globals, "class_info_offsets", (gpointer*)&amodule->class_info_offsets);
1025 find_symbol (sofile, globals, "class_name_table", (gpointer *)&amodule->class_name_table);
1026 find_symbol (sofile, globals, "extra_method_table", (gpointer *)&amodule->extra_method_table);
1027 find_symbol (sofile, globals, "extra_method_info", (gpointer *)&amodule->extra_method_info);
1028 find_symbol (sofile, globals, "extra_method_info_offsets", (gpointer *)&amodule->extra_method_info_offsets);
1029 find_symbol (sofile, globals, "got_info", (gpointer*)&amodule->got_info);
1030 find_symbol (sofile, globals, "got_info_offsets", (gpointer*)&amodule->got_info_offsets);
1031 find_symbol (sofile, globals, "specific_trampolines", (gpointer*)&(amodule->trampolines [MONO_AOT_TRAMP_SPECIFIC]));
1032 find_symbol (sofile, globals, "static_rgctx_trampolines", (gpointer*)&(amodule->trampolines [MONO_AOT_TRAMP_STATIC_RGCTX]));
1033 find_symbol (sofile, globals, "imt_thunks", (gpointer*)&(amodule->trampolines [MONO_AOT_TRAMP_IMT_THUNK]));
1034 find_symbol (sofile, globals, "unwind_info", (gpointer)&amodule->unwind_info);
1035 find_symbol (sofile, globals, "mem_end", (gpointer*)&amodule->mem_end);
1037 amodule->mem_begin = amodule->code;
1039 find_symbol (sofile, globals, "plt", (gpointer*)&amodule->plt);
1040 find_symbol (sofile, globals, "plt_end", (gpointer*)&amodule->plt_end);
1042 if (make_unreadable) {
1043 #ifndef PLATFORM_WIN32
1046 int pages, err, len;
1048 addr = amodule->mem_begin;
1049 len = amodule->mem_end - amodule->mem_begin;
1051 /* Round down in both directions to avoid modifying data which is not ours */
1052 page_start = (guint8 *) (((gssize) (addr)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
1053 pages = ((addr + len - page_start + mono_pagesize () - 1) / mono_pagesize ()) - 1;
1054 err = mono_mprotect (page_start, pages * mono_pagesize (), MONO_MMAP_NONE);
1055 g_assert (err == 0);
1061 aot_code_low_addr = MIN (aot_code_low_addr, (gsize)amodule->code);
1062 aot_code_high_addr = MAX (aot_code_high_addr, (gsize)amodule->code_end);
1064 g_hash_table_insert (aot_modules, assembly, amodule);
1067 mono_jit_info_add_aot_module (assembly->image, amodule->code, amodule->code_end);
1069 assembly->image->aot_module = amodule;
1072 * Since we store methoddef and classdef tokens when referring to methods/classes in
1073 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
1074 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
1075 * non-lazily, since we can't handle out-of-date errors later.
1077 for (i = 0; i < amodule->image_table_len; ++i)
1078 load_image (amodule, i);
1080 if (amodule->out_of_date) {
1081 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);
1082 if (mono_aot_only) {
1083 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);
1088 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT loaded AOT Module for %s.\n", assembly->image->name);
1092 * mono_aot_register_globals:
1094 * This is called by the ctor function in AOT images compiled with the
1095 * 'no-dlsym' option.
1098 mono_aot_register_globals (gpointer *globals)
1100 g_assert_not_reached ();
1104 * mono_aot_register_module:
1106 * This should be called by embedding code to register AOT modules statically linked
1107 * into the executable. AOT_INFO should be the value of the
1108 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
1111 mono_aot_register_module (gpointer *aot_info)
1119 /* Determine the assembly name */
1120 find_symbol (NULL, globals, "mono_aot_assembly_name", (gpointer*)&aname);
1123 /* This could be called before startup */
1127 if (!static_aot_modules)
1128 static_aot_modules = g_hash_table_new (g_str_hash, g_str_equal);
1130 g_hash_table_insert (static_aot_modules, aname, globals);
1137 mono_aot_init (void)
1139 InitializeCriticalSection (&aot_mutex);
1140 aot_modules = g_hash_table_new (NULL, NULL);
1142 mono_install_assembly_load_hook (load_aot_module, NULL);
1144 if (g_getenv ("MONO_LASTAOT"))
1145 mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
1146 if (g_getenv ("MONO_AOT_CACHE"))
1147 use_aot_cache = TRUE;
1151 decode_cached_class_info (MonoAotModule *module, MonoCachedClassInfo *info, guint8 *buf, guint8 **endbuf)
1155 info->vtable_size = decode_value (buf, &buf);
1156 if (info->vtable_size == -1)
1159 flags = decode_value (buf, &buf);
1160 info->ghcimpl = (flags >> 0) & 0x1;
1161 info->has_finalize = (flags >> 1) & 0x1;
1162 info->has_cctor = (flags >> 2) & 0x1;
1163 info->has_nested_classes = (flags >> 3) & 0x1;
1164 info->blittable = (flags >> 4) & 0x1;
1165 info->has_references = (flags >> 5) & 0x1;
1166 info->has_static_refs = (flags >> 6) & 0x1;
1167 info->no_special_static_fields = (flags >> 7) & 0x1;
1169 if (info->has_cctor) {
1170 MonoImage *cctor_image = decode_method_ref (module, &info->cctor_token, NULL, NULL, buf, &buf);
1174 if (info->has_finalize) {
1175 info->finalize_image = decode_method_ref (module, &info->finalize_token, NULL, NULL, buf, &buf);
1176 if (!info->finalize_image)
1180 info->instance_size = decode_value (buf, &buf);
1181 info->class_size = decode_value (buf, &buf);
1182 info->packing_size = decode_value (buf, &buf);
1183 info->min_align = decode_value (buf, &buf);
1191 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
1194 MonoClass *klass = vtable->klass;
1195 MonoAotModule *aot_module = klass->image->aot_module;
1197 MonoCachedClassInfo class_info;
1201 gboolean no_aot_trampoline;
1203 if (MONO_CLASS_IS_INTERFACE (klass) || klass->rank || !aot_module)
1206 info = &aot_module->class_info [aot_module->class_info_offsets [mono_metadata_token_index (klass->type_token) - 1]];
1209 err = decode_cached_class_info (aot_module, &class_info, p, &p);
1213 for (i = 0; i < slot; ++i)
1214 decode_method_ref (aot_module, &token, NULL, NULL, p, &p);
1216 image = decode_method_ref (aot_module, &token, NULL, &no_aot_trampoline, p, &p);
1219 if (no_aot_trampoline)
1222 if (mono_metadata_token_index (token) == 0)
1225 return mono_aot_get_method_from_token (domain, image, token);
1229 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
1231 MonoAotModule *aot_module = klass->image->aot_module;
1235 if (klass->rank || !aot_module)
1238 p = (guint8*)&aot_module->class_info [aot_module->class_info_offsets [mono_metadata_token_index (klass->type_token) - 1]];
1240 err = decode_cached_class_info (aot_module, res, p, &p);
1248 * mono_aot_get_class_from_name:
1250 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
1251 * using a cache stored in the AOT file.
1252 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
1254 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
1258 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
1260 MonoAotModule *aot_module = image->aot_module;
1261 guint16 *table, *entry;
1264 char full_name_buf [1024];
1266 const char *name2, *name_space2;
1268 guint32 cols [MONO_TYPEDEF_SIZE];
1269 GHashTable *nspace_table;
1271 if (!aot_module || !aot_module->class_name_table)
1278 /* First look in the cache */
1279 if (!aot_module->name_cache)
1280 aot_module->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
1281 nspace_table = g_hash_table_lookup (aot_module->name_cache, name_space);
1283 *klass = g_hash_table_lookup (nspace_table, name);
1290 table_size = aot_module->class_name_table [0];
1291 table = aot_module->class_name_table + 1;
1293 if (name_space [0] == '\0')
1294 full_name = g_strdup_printf ("%s", name);
1296 if (strlen (name_space) + strlen (name) < 1000) {
1297 sprintf (full_name_buf, "%s.%s", name_space, name);
1298 full_name = full_name_buf;
1300 full_name = g_strdup_printf ("%s.%s", name_space, name);
1303 hash = mono_aot_str_hash (full_name) % table_size;
1304 if (full_name != full_name_buf)
1307 entry = &table [hash * 2];
1309 if (entry [0] != 0) {
1310 t = &image->tables [MONO_TABLE_TYPEDEF];
1313 guint32 index = entry [0];
1314 guint32 next = entry [1];
1315 guint32 token = mono_metadata_make_token (MONO_TABLE_TYPEDEF, index);
1317 name_table_accesses ++;
1319 mono_metadata_decode_row (t, index - 1, cols, MONO_TYPEDEF_SIZE);
1321 name2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
1322 name_space2 = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
1324 if (!strcmp (name, name2) && !strcmp (name_space, name_space2)) {
1326 *klass = mono_class_get (image, token);
1331 nspace_table = g_hash_table_lookup (aot_module->name_cache, name_space);
1332 if (!nspace_table) {
1333 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
1334 g_hash_table_insert (aot_module->name_cache, (char*)name_space2, nspace_table);
1336 g_hash_table_insert (nspace_table, (char*)name2, *klass);
1343 entry = &table [next * 2];
1356 * LOCKING: Acquires the domain lock.
1359 decode_exception_debug_info (MonoAotModule *aot_module, MonoDomain *domain,
1360 MonoMethod *method, guint8* ex_info, guint8 *code)
1364 guint code_len, used_int_regs, flags;
1365 gboolean has_generic_jit_info, has_dwarf_unwind_info;
1367 MonoMethodHeader *header;
1368 int generic_info_size;
1370 header = mono_method_get_header (method);
1372 /* Load the method info from the AOT file */
1375 code_len = decode_value (p, &p);
1376 flags = decode_value (p, &p);
1377 has_generic_jit_info = (flags & 1) != 0;
1378 has_dwarf_unwind_info = (flags & 2) != 0;
1379 if (has_dwarf_unwind_info) {
1382 offset = decode_value (p, &p);
1383 g_assert (offset < (1 << 30));
1384 used_int_regs = offset;
1386 used_int_regs = decode_value (p, &p);
1388 if (has_generic_jit_info)
1389 generic_info_size = sizeof (MonoGenericJitInfo);
1391 generic_info_size = 0;
1393 /* Exception table */
1394 if (header && header->num_clauses) {
1396 mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + (sizeof (MonoJitExceptionInfo) * header->num_clauses) + generic_info_size);
1397 jinfo->num_clauses = header->num_clauses;
1399 for (i = 0; i < header->num_clauses; ++i) {
1400 MonoExceptionClause *ec = &header->clauses [i];
1401 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
1403 ei->flags = ec->flags;
1404 ei->exvar_offset = decode_value (p, &p);
1406 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
1407 ei->data.filter = code + decode_value (p, &p);
1409 ei->data.catch_class = ec->data.catch_class;
1411 ei->try_start = code + decode_value (p, &p);
1412 ei->try_end = code + decode_value (p, &p);
1413 ei->handler_start = code + decode_value (p, &p);
1417 jinfo = mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + generic_info_size);
1420 jinfo->code_size = code_len;
1421 jinfo->used_regs = used_int_regs;
1422 jinfo->method = method;
1423 jinfo->code_start = code;
1424 jinfo->domain_neutral = 0;
1425 jinfo->from_aot = 1;
1427 if (has_generic_jit_info) {
1428 MonoGenericJitInfo *gi;
1430 jinfo->has_generic_jit_info = 1;
1432 gi = mono_jit_info_get_generic_jit_info (jinfo);
1435 gi->has_this = decode_value (p, &p);
1436 gi->this_reg = decode_value (p, &p);
1437 gi->this_offset = decode_value (p, &p);
1439 /* This currently contains no data */
1440 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
1442 jinfo->method = decode_method_ref_2 (aot_module, p, &p);
1445 /* Load debug info */
1446 buf_len = decode_value (p, &p);
1447 mono_debug_add_aot_method (domain, method, code, p, buf_len);
1453 * mono_aot_get_unwind_info:
1455 * Return a pointer to the DWARF unwind info belonging to JI.
1458 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
1460 MonoAotModule *amodule = ji->method->klass->image->aot_module;
1464 g_assert (ji->from_aot);
1466 p = amodule->unwind_info + ji->used_regs;
1467 *unwind_info_len = decode_value (p, &p);
1472 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
1474 int pos, left, right, offset, offset1, offset2, last_offset, new_offset;
1475 int page_index, method_index, table_len, is_wrapper;
1477 MonoAotModule *amodule = image->aot_module;
1480 guint8 *code, *ex_info, *p;
1481 guint32 *table, *ptr;
1487 if (domain != mono_get_root_domain ())
1491 offset = (guint8*)addr - amodule->code;
1493 /* First search through the index */
1494 ptr = amodule->method_order;
1499 if (*ptr == 0xffffff)
1503 while (*ptr != 0xffffff) {
1504 guint32 method_index = ptr [0];
1505 new_offset = amodule->code_offsets [method_index];
1507 if (offset >= last_offset && offset < new_offset) {
1513 last_offset = new_offset;
1517 /* Skip rest of index */
1518 while (*ptr != 0xffffff)
1523 table_len = amodule->method_order_end - table;
1525 g_assert (table <= amodule->method_order_end);
1528 left = (page_index * 1024);
1529 right = left + 1024;
1531 if (right > table_len)
1534 offset1 = amodule->code_offsets [table [left]];
1535 g_assert (offset1 <= offset);
1537 //printf ("Found in index: 0x%x 0x%x 0x%x\n", offset, last_offset, new_offset);
1540 //printf ("Not found in index: 0x%x\n", offset);
1545 /* Binary search inside the method_order table to find the method */
1547 pos = (left + right) / 2;
1549 g_assert (table + pos <= amodule->method_order_end);
1551 //printf ("Pos: %5d < %5d < %5d Offset: 0x%05x < 0x%05x < 0x%05x\n", left, pos, right, amodule->code_offsets [table [left]], offset, amodule->code_offsets [table [right]]);
1553 offset1 = amodule->code_offsets [table [pos]];
1554 if (table + pos + 1 >= amodule->method_order_end)
1555 offset2 = amodule->code_end - amodule->code;
1557 offset2 = amodule->code_offsets [table [pos + 1]];
1559 if (offset < offset1)
1561 else if (offset >= offset2)
1567 method_index = table [pos];
1569 /* Might be a wrapper/extra method */
1570 if (amodule->extra_methods) {
1572 method = g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
1579 if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
1581 * This is hit for extra methods which are called directly, so they are
1582 * not in amodule->extra_methods.
1584 table_len = amodule->extra_method_info_offsets [0];
1585 table = amodule->extra_method_info_offsets + 1;
1592 pos = ((left + right) / 2);
1594 g_assert (pos < table_len);
1596 if (table [pos * 2] < method_index)
1598 else if (table [pos * 2] > method_index)
1604 p = amodule->extra_method_info + table [(pos * 2) + 1];
1605 is_wrapper = decode_value (p, &p);
1606 g_assert (!is_wrapper);
1607 method = decode_method_ref_2 (amodule, p, &p);
1610 token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
1611 method = mono_get_method (image, token, NULL);
1618 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
1620 code = &amodule->code [amodule->code_offsets [method_index]];
1621 ex_info = &amodule->ex_info [amodule->ex_info_offsets [method_index]];
1623 jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, code);
1625 g_assert ((guint8*)addr >= (guint8*)jinfo->code_start);
1626 g_assert ((guint8*)addr < (guint8*)jinfo->code_start + jinfo->code_size);
1628 /* Add it to the normal JitInfo tables */
1629 mono_jit_info_table_add (domain, jinfo);
1635 decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf)
1643 case MONO_PATCH_INFO_METHOD:
1644 case MONO_PATCH_INFO_METHOD_JUMP:
1645 case MONO_PATCH_INFO_ICALL_ADDR:
1646 case MONO_PATCH_INFO_METHOD_RGCTX: {
1649 gboolean no_aot_trampoline;
1651 image = decode_method_ref (aot_module, &token, &method, &no_aot_trampoline, p, &p);
1655 if (!method && !mono_aot_only && !no_aot_trampoline && (ji->type == MONO_PATCH_INFO_METHOD) && (mono_metadata_token_table (token) == MONO_TABLE_METHOD)) {
1656 ji->data.target = mono_create_jit_trampoline_from_token (image, token);
1657 ji->type = MONO_PATCH_INFO_ABS;
1661 ji->data.method = method;
1663 ji->data.method = mono_get_method (image, token, NULL);
1664 g_assert (ji->data.method);
1665 mono_class_init (ji->data.method->klass);
1669 case MONO_PATCH_INFO_INTERNAL_METHOD:
1670 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
1671 guint32 len = decode_value (p, &p);
1673 ji->data.name = (char*)p;
1677 case MONO_PATCH_INFO_METHODCONST:
1679 ji->data.method = decode_method_ref_2 (aot_module, p, &p);
1680 if (!ji->data.method)
1683 case MONO_PATCH_INFO_VTABLE:
1684 case MONO_PATCH_INFO_CLASS:
1685 case MONO_PATCH_INFO_IID:
1686 case MONO_PATCH_INFO_ADJUSTED_IID:
1688 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1689 if (!ji->data.klass)
1692 case MONO_PATCH_INFO_CLASS_INIT:
1693 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
1694 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1695 if (!ji->data.klass)
1698 case MONO_PATCH_INFO_IMAGE:
1699 ji->data.image = load_image (aot_module, decode_value (p, &p));
1700 if (!ji->data.image)
1703 case MONO_PATCH_INFO_FIELD:
1704 case MONO_PATCH_INFO_SFLDA:
1706 ji->data.field = decode_field_info (aot_module, p, &p);
1707 if (!ji->data.field)
1710 case MONO_PATCH_INFO_SWITCH:
1711 ji->data.table = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoBBTable));
1712 ji->data.table->table_size = decode_value (p, &p);
1713 table = g_new (gpointer, ji->data.table->table_size);
1714 ji->data.table->table = (MonoBasicBlock**)table;
1715 for (i = 0; i < ji->data.table->table_size; i++)
1716 table [i] = (gpointer)(gssize)decode_value (p, &p);
1718 case MONO_PATCH_INFO_R4: {
1721 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (float));
1722 val = decode_value (p, &p);
1723 *(float*)ji->data.target = *(float*)&val;
1726 case MONO_PATCH_INFO_R8: {
1729 ji->data.target = mono_domain_alloc0 (mono_domain_get (), sizeof (double));
1731 val [0] = decode_value (p, &p);
1732 val [1] = decode_value (p, &p);
1733 *(double*)ji->data.target = *(double*)val;
1736 case MONO_PATCH_INFO_LDSTR:
1737 image = load_image (aot_module, decode_value (p, &p));
1740 ji->data.token = mono_jump_info_token_new (mp, image, MONO_TOKEN_STRING + decode_value (p, &p));
1742 case MONO_PATCH_INFO_RVA:
1743 case MONO_PATCH_INFO_DECLSEC:
1744 case MONO_PATCH_INFO_LDTOKEN:
1745 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
1747 image = load_image (aot_module, decode_value (p, &p));
1750 ji->data.token = mono_jump_info_token_new (mp, image, decode_value (p, &p));
1752 ji->data.token->has_context = decode_value (p, &p);
1753 if (ji->data.token->has_context) {
1754 gboolean res = decode_generic_context (aot_module, &ji->data.token->context, p, &p);
1759 case MONO_PATCH_INFO_EXC_NAME:
1760 ji->data.klass = decode_klass_ref (aot_module, p, &p);
1761 if (!ji->data.klass)
1763 ji->data.name = ji->data.klass->name;
1765 case MONO_PATCH_INFO_METHOD_REL:
1766 ji->data.offset = decode_value (p, &p);
1768 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
1769 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
1770 case MONO_PATCH_INFO_MONITOR_ENTER:
1771 case MONO_PATCH_INFO_MONITOR_EXIT:
1773 case MONO_PATCH_INFO_RGCTX_FETCH: {
1775 MonoJumpInfoRgctxEntry *entry;
1777 entry = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
1778 entry->method = decode_method_ref_2 (aot_module, p, &p);
1779 entry->in_mrgctx = decode_value (p, &p);
1780 entry->info_type = decode_value (p, &p);
1781 entry->data = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
1782 entry->data->type = decode_value (p, &p);
1784 res = decode_patch (aot_module, mp, entry->data, p, &p);
1787 ji->data.rgctx_entry = entry;
1791 g_warning ("unhandled type %d", ji->type);
1792 g_assert_not_reached ();
1803 static MonoJumpInfo*
1804 load_patch_info (MonoAotModule *aot_module, MonoMemPool *mp, int n_patches,
1805 guint32 got_index, guint32 **got_slots,
1806 guint8 *buf, guint8 **endbuf)
1808 MonoJumpInfo *patches;
1814 patches = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo) * n_patches);
1816 *got_slots = g_malloc (sizeof (guint32) * n_patches);
1818 for (pindex = 0; pindex < n_patches; ++pindex) {
1819 MonoJumpInfo *ji = &patches [pindex];
1824 ji->type = decode_value (p, &p);
1826 if (mono_aot_is_shared_got_patch (ji)) {
1827 got_offset = decode_value (p, &p);
1829 if (aot_module->got [got_offset]) {
1830 /* Already loaded */
1831 //printf ("HIT!\n");
1833 shared_p = aot_module->got_info + aot_module->got_info_offsets [got_offset];
1835 res = decode_patch (aot_module, mp, ji, shared_p, &shared_p);
1840 res = decode_patch (aot_module, mp, ji, p, &p);
1844 got_offset = got_index ++;
1847 (*got_slots) [pindex] = got_offset;
1854 g_free (*got_slots);
1861 register_jump_target_got_slot (MonoDomain *domain, MonoMethod *method, gpointer *got_slot)
1864 * Jump addresses cannot be patched by the trampoline code since it
1865 * does not have access to the caller's address. Instead, we collect
1866 * the addresses of the GOT slots pointing to a method, and patch
1867 * them after the method has been compiled.
1869 MonoJitDomainInfo *info = domain_jit_info (domain);
1872 mono_domain_lock (domain);
1873 if (!info->jump_target_got_slot_hash)
1874 info->jump_target_got_slot_hash = g_hash_table_new (NULL, NULL);
1875 list = g_hash_table_lookup (info->jump_target_got_slot_hash, method);
1876 list = g_slist_prepend (list, got_slot);
1877 g_hash_table_insert (info->jump_target_got_slot_hash, method, list);
1878 mono_domain_unlock (domain);
1884 * Load the method identified by METHOD_INDEX from the AOT image. Return a
1885 * pointer to the native code of the method, or NULL if not found.
1886 * METHOD might not be set if the caller only has the image/token info.
1889 load_method (MonoDomain *domain, MonoAotModule *aot_module, MonoImage *image, MonoMethod *method, guint32 token, int method_index)
1892 gboolean from_plt = method == NULL;
1894 int i, pindex, got_index = 0, n_patches, used_strings;
1895 gboolean keep_patches = TRUE;
1896 guint8 *p, *ex_info;
1897 MonoJitInfo *jinfo = NULL;
1898 guint8 *code, *info;
1900 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE)
1903 if ((domain != mono_get_root_domain ()) && (!(aot_module->opts & MONO_OPT_SHARED)))
1904 /* Non shared AOT code can't be used in other appdomains */
1907 if (aot_module->out_of_date)
1910 if (aot_module->code_offsets [method_index] == 0xffffffff) {
1911 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
1915 method = mono_get_method (image, token, NULL);
1916 full_name = mono_method_full_name (method, TRUE);
1917 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.\n", full_name);
1923 code = &aot_module->code [aot_module->code_offsets [method_index]];
1924 info = &aot_module->method_info [aot_module->method_info_offsets [method_index]];
1927 if (!aot_module->methods_loaded)
1928 aot_module->methods_loaded = g_new0 (guint32, image->tables [MONO_TABLE_METHOD].rows + 1);
1931 if ((aot_module->methods_loaded [method_index / 32] >> (method_index % 32)) & 0x1)
1934 if (mono_last_aot_method != -1) {
1935 if (mono_jit_stats.methods_aot > mono_last_aot_method)
1938 if (method && mono_jit_stats.methods_aot == mono_last_aot_method)
1939 printf ("LAST AOT METHOD: %s.%s.%s.\n", method->klass->name_space, method->klass->name, method->name);
1945 klass = method->klass;
1946 decode_klass_ref (aot_module, p, &p);
1948 klass = decode_klass_ref (aot_module, p, &p);
1951 if (aot_module->opts & MONO_OPT_SHARED)
1952 used_strings = decode_value (p, &p);
1956 for (i = 0; i < used_strings; i++) {
1957 guint token = decode_value (p, &p);
1958 mono_ldstr (mono_get_root_domain (), image, mono_metadata_token_index (token));
1961 if (aot_module->opts & MONO_OPT_SHARED)
1962 keep_patches = FALSE;
1964 n_patches = decode_value (p, &p);
1966 keep_patches = FALSE;
1969 MonoJumpInfo *patches;
1975 mp = mono_mempool_new ();
1977 got_index = decode_value (p, &p);
1979 patches = load_patch_info (aot_module, mp, n_patches, got_index, &got_slots, p, &p);
1980 if (patches == NULL)
1983 for (pindex = 0; pindex < n_patches; ++pindex) {
1984 MonoJumpInfo *ji = &patches [pindex];
1986 if (!aot_module->got [got_slots [pindex]]) {
1987 aot_module->got [got_slots [pindex]] = mono_resolve_patch_target (method, domain, code, ji, TRUE);
1988 if (ji->type == MONO_PATCH_INFO_METHOD_JUMP)
1989 register_jump_target_got_slot (domain, ji->data.method, &(aot_module->got [got_slots [pindex]]));
1991 ji->type = MONO_PATCH_INFO_NONE;
1997 mono_mempool_destroy (mp);
2000 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2004 method = mono_get_method (image, token, NULL);
2006 full_name = mono_method_full_name (method, TRUE);
2009 ex_info = &aot_module->ex_info [aot_module->ex_info_offsets [method_index]];
2010 jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
2013 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);
2019 mono_jit_stats.methods_aot++;
2021 aot_module->methods_loaded [method_index / 32] |= 1 << (method_index % 32);
2023 init_plt (aot_module);
2025 if (method && method->wrapper_type)
2026 g_hash_table_insert (aot_module->method_to_code, method, code);
2030 if (from_plt && klass && !klass->generic_container)
2031 mono_runtime_class_init (mono_class_vtable (domain, klass));
2036 /* FIXME: The space in domain->mp is wasted */
2037 if (aot_module->opts & MONO_OPT_SHARED)
2038 /* No need to cache patches */
2039 mono_mempool_destroy (mp);
2048 find_extra_method_in_amodule (MonoAotModule *amodule, MonoMethod *method)
2050 guint32 table_size, entry_size, hash;
2051 guint32 *table, *entry;
2054 static guint32 n_extra_decodes;
2059 table_size = amodule->extra_method_table [0];
2060 table = amodule->extra_method_table + 1;
2063 if (method->wrapper_type) {
2064 name = mono_aot_wrapper_name (method);
2067 hash = mono_aot_method_hash (method) % table_size;
2069 entry = &table [hash * entry_size];
2076 guint32 key = entry [0];
2077 guint32 value = entry [1];
2078 guint32 next = entry [entry_size - 1];
2081 int is_wrapper_name;
2083 p = amodule->extra_method_info + key;
2084 is_wrapper_name = decode_value (p, &p);
2085 if (is_wrapper_name) {
2086 int wrapper_type = decode_value (p, &p);
2087 if (wrapper_type == method->wrapper_type && !strcmp (name, (char*)p)) {
2091 } else if (can_method_ref_match_method (amodule, p, method)) {
2093 if (!amodule->method_ref_to_method)
2094 amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
2095 m = g_hash_table_lookup (amodule->method_ref_to_method, p);
2099 m = decode_method_ref_2 (amodule, p, &p);
2102 g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
2111 /* Special case: wrappers of shared generic methods */
2112 if (m && method->wrapper_type && m->wrapper_type == m->wrapper_type &&
2113 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
2114 MonoMethod *w1 = mono_marshal_method_from_wrapper (method);
2115 MonoMethod *w2 = mono_marshal_method_from_wrapper (m);
2117 if (w1->is_inflated && ((MonoMethodInflated *)w1)->declaring == w2) {
2123 /* Methods decoded needlessly */
2126 printf ("%d %s %s\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE));
2132 entry = &table [next * entry_size];
2142 add_module_cb (gpointer key, gpointer value, gpointer user_data)
2144 g_ptr_array_add ((GPtrArray*)user_data, value);
2148 * find_extra_method:
2150 * Try finding METHOD in the extra_method table in all AOT images.
2151 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
2152 * module where the method was found.
2155 find_extra_method (MonoMethod *method, MonoAotModule **out_amodule)
2161 /* Try the method's module first */
2162 *out_amodule = method->klass->image->aot_module;
2163 index = find_extra_method_in_amodule (method->klass->image->aot_module, method);
2164 if (index != 0xffffff)
2168 * Try all other modules.
2169 * This is needed because generic instances klass->image points to the image
2170 * containing the generic definition, but the native code is generated to the
2171 * AOT image which contains the reference.
2174 /* Make a copy to avoid doing the search inside the aot lock */
2175 modules = g_ptr_array_new ();
2177 g_hash_table_foreach (aot_modules, add_module_cb, modules);
2181 for (i = 0; i < modules->len; ++i) {
2182 MonoAotModule *amodule = g_ptr_array_index (modules, i);
2184 if (amodule != method->klass->image->aot_module)
2185 index = find_extra_method_in_amodule (amodule, method);
2186 if (index != 0xffffff) {
2187 *out_amodule = amodule;
2192 g_ptr_array_free (modules, TRUE);
2198 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
2200 MonoClass *klass = method->klass;
2201 guint32 method_index;
2202 MonoAotModule *amodule = klass->image->aot_module;
2208 if (amodule->out_of_date)
2211 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
2212 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2213 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2214 (method->flags & METHOD_ATTRIBUTE_ABSTRACT))
2217 g_assert (klass->inited);
2219 /* Find method index */
2220 if (method->is_inflated && mono_method_is_generic_sharable_impl (method, FALSE)) {
2221 method = mono_method_get_declaring_generic_method (method);
2222 method_index = mono_metadata_token_index (method->token) - 1;
2223 } else if (method->is_inflated || !method->token) {
2224 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
2226 code = g_hash_table_lookup (amodule->method_to_code, method);
2231 method_index = find_extra_method (method, &amodule);
2232 if (method_index == 0xffffff) {
2233 if (mono_aot_only && mono_trace_is_traced (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT)) {
2236 full_name = mono_method_full_name (method, TRUE);
2237 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.\n", full_name);
2243 if (method_index == 0xffffff)
2246 /* Needed by find_jit_info */
2248 if (!amodule->extra_methods)
2249 amodule->extra_methods = g_hash_table_new (NULL, NULL);
2250 g_hash_table_insert (amodule->extra_methods, GUINT_TO_POINTER (method_index), method);
2254 method_index = mono_metadata_token_index (method->token) - 1;
2257 return load_method (domain, amodule, klass->image, method, method->token, method_index);
2261 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
2265 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2267 MonoAotModule *aot_module = image->aot_module;
2273 method_index = mono_metadata_token_index (token) - 1;
2275 return load_method (domain, aot_module, image, NULL, token, method_index);
2281 } IsGotEntryUserData;
2284 check_is_got_entry (gpointer key, gpointer value, gpointer user_data)
2286 IsGotEntryUserData *data = (IsGotEntryUserData*)user_data;
2287 MonoAotModule *aot_module = (MonoAotModule*)value;
2289 if (aot_module->got && (data->addr >= (guint8*)(aot_module->got)) && (data->addr < (guint8*)(aot_module->got + aot_module->info.got_size)))
2294 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
2296 IsGotEntryUserData user_data;
2301 user_data.addr = addr;
2302 user_data.res = FALSE;
2304 g_hash_table_foreach (aot_modules, check_is_got_entry, &user_data);
2307 return user_data.res;
2312 MonoAotModule *module;
2313 } FindAotModuleUserData;
2316 find_aot_module_cb (gpointer key, gpointer value, gpointer user_data)
2318 FindAotModuleUserData *data = (FindAotModuleUserData*)user_data;
2319 MonoAotModule *aot_module = (MonoAotModule*)value;
2321 if ((data->addr >= (guint8*)(aot_module->code)) && (data->addr < (guint8*)(aot_module->code_end)))
2322 data->module = aot_module;
2325 static inline MonoAotModule*
2326 find_aot_module (guint8 *code)
2328 FindAotModuleUserData user_data;
2333 /* Reading these need no locking */
2334 if (((gsize)code < aot_code_low_addr) || ((gsize)code > aot_code_high_addr))
2337 user_data.addr = code;
2338 user_data.module = NULL;
2341 g_hash_table_foreach (aot_modules, find_aot_module_cb, &user_data);
2344 return user_data.module;
2348 * mono_aot_plt_resolve:
2350 * This function is called by the entries in the PLT to resolve the actual method that
2351 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
2354 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
2356 #ifdef MONO_ARCH_AOT_SUPPORTED
2357 guint8 *p, *target, *plt_entry;
2359 MonoAotModule *module = (MonoAotModule*)aot_module;
2363 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
2365 p = &module->got_info [plt_info_offset];
2367 ji.type = decode_value (p, &p);
2369 mp = mono_mempool_new_size (512);
2370 res = decode_patch (module, mp, &ji, p, &p);
2371 // FIXME: Error handling (how ?)
2374 target = mono_resolve_patch_target (NULL, mono_domain_get (), NULL, &ji, TRUE);
2376 mono_mempool_destroy (mp);
2378 /* Patch the PLT entry with target which might be the actual method not a trampoline */
2379 plt_entry = mono_aot_get_plt_entry (code);
2380 g_assert (plt_entry);
2381 mono_arch_patch_plt_entry (plt_entry, target);
2385 g_assert_not_reached ();
2393 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
2394 * method in the module is loaded to avoid committing memory by writing to it.
2395 * LOCKING: Assumes the AOT lock is held.
2398 init_plt (MonoAotModule *amodule)
2400 #ifdef MONO_ARCH_AOT_SUPPORTED
2402 guint8 *buf = amodule->plt;
2403 #elif defined(__x86_64__) || defined(__arm__)
2408 if (amodule->plt_inited)
2411 tramp = mono_create_specific_trampoline (amodule, MONO_TRAMPOLINE_AOT_PLT, mono_get_root_domain (), NULL);
2414 /* Initialize the first PLT entry */
2415 make_writable (amodule->plt, amodule->plt_end - amodule->plt);
2416 x86_jump_code (buf, tramp);
2417 #elif defined(__x86_64__) || defined(__arm__)
2419 * Initialize the PLT entries in the GOT to point to the default targets.
2422 /* The first entry points to the AOT trampoline */
2423 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base] = tramp;
2424 for (i = 1; i < amodule->info.plt_size; ++i)
2425 /* All the default entries point to the first entry */
2426 ((gpointer*)amodule->got)[amodule->info.plt_got_offset_base + i] = amodule->plt;
2428 g_assert_not_reached ();
2431 amodule->plt_inited = TRUE;
2436 * mono_aot_get_plt_entry:
2438 * Return the address of the PLT entry called by the code at CODE if exists.
2441 mono_aot_get_plt_entry (guint8 *code)
2443 MonoAotModule *aot_module = find_aot_module (code);
2444 #if defined(__arm__)
2451 #if defined(__i386__) || defined(__x86_64__)
2452 if (code [-5] == 0xe8) {
2453 guint32 disp = *(guint32*)(code - 4);
2454 guint8 *target = code + disp;
2456 if ((target >= (guint8*)(aot_module->plt)) && (target < (guint8*)(aot_module->plt_end)))
2459 #elif defined(__arm__)
2460 ins = ((guint32*)(gpointer)code) [-1];
2462 /* Should be a 'bl' */
2463 if ((((ins >> 25) & 0x7) == 0x5) && (((ins >> 24) & 0x1) == 0x1)) {
2464 gint32 disp = ((gint32)ins) & 0xffffff;
2465 guint8 *target = code - 4 + 8 + (disp * 4);
2467 if ((target >= (guint8*)(aot_module->plt)) && (target < (guint8*)(aot_module->plt_end)))
2471 g_assert_not_reached ();
2478 * mono_aot_get_plt_info_offset:
2480 * Return the PLT info offset belonging to the plt entry called by CODE.
2483 mono_aot_get_plt_info_offset (gssize *regs, guint8 *code)
2485 guint8 *plt_entry = mono_aot_get_plt_entry (code);
2487 g_assert (plt_entry);
2489 /* The offset is embedded inside the code after the plt entry */
2490 #if defined(__i386__)
2491 return *(guint32*)(plt_entry + 5);
2492 #elif defined(__x86_64__)
2493 return *(guint32*)(plt_entry + 6);
2494 #elif defined(__arm__)
2495 /* The offset is stored as the 5th word of the plt entry */
2496 return ((guint32*)plt_entry) [4];
2498 g_assert_not_reached ();
2506 * Load the function named NAME from the aot image.
2509 load_function (MonoAotModule *amodule, const char *name)
2513 int n_patches, got_index, pindex;
2519 symbol = g_strdup_printf ("%s", name);
2520 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&code);
2523 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name, amodule->aot_name);
2525 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT FOUND function '%s' in AOT file '%s'.\n", name, amodule->aot_name);
2529 symbol = g_strdup_printf ("%s_p", name);
2530 find_symbol (amodule->sofile, amodule->globals, symbol, (gpointer *)&p);
2533 /* Nothing to patch */
2536 /* Similar to mono_aot_load_method () */
2538 n_patches = decode_value (p, &p);
2541 MonoJumpInfo *patches;
2544 mp = mono_mempool_new ();
2546 got_index = decode_value (p, &p);
2548 patches = load_patch_info (amodule, mp, n_patches, got_index, &got_slots, p, &p);
2551 for (pindex = 0; pindex < n_patches; ++pindex) {
2552 MonoJumpInfo *ji = &patches [pindex];
2555 if (amodule->got [got_slots [pindex]])
2559 * When this code is executed, the runtime may not be initalized yet, so
2560 * resolve the patch info by hand.
2562 if (ji->type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
2563 if (!strcmp (ji->data.name, "mono_get_lmf_addr")) {
2564 target = mono_get_lmf_addr;
2565 } else if (!strcmp (ji->data.name, "mono_thread_force_interruption_checkpoint")) {
2566 target = mono_thread_force_interruption_checkpoint;
2567 } else if (!strcmp (ji->data.name, "mono_exception_from_token")) {
2568 target = mono_exception_from_token;
2569 } else if (!strcmp (ji->data.name, "mono_throw_exception")) {
2570 target = mono_get_throw_exception ();
2572 } else if (!strcmp (ji->data.name, "mono_amd64_throw_exception")) {
2573 target = mono_amd64_throw_exception;
2576 } else if (!strcmp (ji->data.name, "mono_amd64_get_original_ip")) {
2577 target = mono_amd64_get_original_ip;
2580 } else if (!strcmp (ji->data.name, "mono_arm_throw_exception")) {
2581 target = mono_arm_throw_exception;
2582 } else if (!strcmp (ji->data.name, "mono_arm_throw_exception_by_token")) {
2583 target = mono_arm_throw_exception_by_token;
2585 } else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
2586 int tramp_type2 = atoi (ji->data.name + strlen ("trampoline_func_"));
2587 target = (gpointer)mono_get_trampoline_func (tramp_type2);
2588 } else if (strstr (ji->data.name, "specific_trampoline_lazy_fetch_") == ji->data.name) {
2589 /* atoll is needed because the the offset is unsigned */
2593 res = sscanf (ji->data.name, "specific_trampoline_lazy_fetch_%u", &slot);
2594 g_assert (res == 1);
2595 target = mono_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
2596 } else if (!strcmp (ji->data.name, "specific_trampoline_monitor_enter")) {
2597 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_ENTER, mono_get_root_domain (), NULL);
2598 } else if (!strcmp (ji->data.name, "specific_trampoline_monitor_exit")) {
2599 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_EXIT, mono_get_root_domain (), NULL);
2600 } else if (!strcmp (ji->data.name, "specific_trampoline_generic_class_init")) {
2601 target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_GENERIC_CLASS_INIT, mono_get_root_domain (), NULL);
2602 } else if (!strcmp (ji->data.name, "mono_thread_get_and_clear_pending_exception")) {
2603 target = mono_thread_get_and_clear_pending_exception;
2605 fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
2606 g_assert_not_reached ();
2610 /* Hopefully the code doesn't have patches which need method or
2613 target = mono_resolve_patch_target (NULL, NULL, code, ji, FALSE);
2617 amodule->got [got_slots [pindex]] = target;
2622 mono_mempool_destroy (mp);
2629 * Return the piece of code identified by NAME from the mscorlib AOT file.
2632 mono_aot_get_named_code (const char *name)
2635 MonoAotModule *amodule;
2637 image = mono_defaults.corlib;
2640 amodule = image->aot_module;
2643 return load_function (amodule, name);
2646 /* Return a given kind of trampoline */
2648 get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotModule **out_amodule, guint32 *got_offset, guint32 *out_tramp_size)
2650 MonoAotModule *amodule;
2651 int index, tramp_size;
2654 /* Currently, we keep all trampolines in the mscorlib AOT image */
2655 image = mono_defaults.corlib;
2660 amodule = image->aot_module;
2663 *out_amodule = amodule;
2665 if (amodule->trampoline_index [tramp_type] == amodule->info.num_trampolines [tramp_type])
2666 g_error ("Ran out of trampolines of type %d in '%s' (%d)\n", tramp_type, image->name, amodule->info.num_trampolines [tramp_type]);
2668 index = amodule->trampoline_index [tramp_type] ++;
2672 *got_offset = amodule->info.trampoline_got_offset_base [tramp_type] + (index * n_got_slots);
2674 tramp_size = amodule->info.trampoline_size [tramp_type];
2677 *out_tramp_size = tramp_size;
2679 return amodule->trampolines [tramp_type] + (index * tramp_size);
2683 * Return a specific trampoline from the AOT file.
2686 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
2688 MonoAotModule *amodule;
2689 guint32 got_offset, tramp_size;
2690 guint8 *code, *tramp;
2691 static gpointer generic_trampolines [MONO_TRAMPOLINE_NUM];
2692 static gboolean inited;
2693 static guint32 num_trampolines;
2699 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &num_trampolines);
2708 if (!generic_trampolines [tramp_type]) {
2711 symbol = g_strdup_printf ("generic_trampoline_%d", tramp_type);
2712 generic_trampolines [tramp_type] = mono_aot_get_named_code (symbol);
2716 tramp = generic_trampolines [tramp_type];
2719 code = get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC, 2, &amodule, &got_offset, &tramp_size);
2721 amodule->got [got_offset] = tramp;
2722 amodule->got [got_offset + 1] = arg1;
2725 *code_len = tramp_size;
2731 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
2733 MonoAotModule *amodule;
2737 code = get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX, 2, &amodule, &got_offset, NULL);
2739 amodule->got [got_offset] = ctx;
2740 amodule->got [got_offset + 1] = addr;
2746 mono_aot_get_unbox_trampoline (MonoMethod *method)
2748 guint32 method_index = mono_metadata_token_index (method->token) - 1;
2749 MonoAotModule *amodule;
2753 if (method->is_inflated && !mono_method_is_generic_sharable_impl (method, FALSE)) {
2754 guint32 index = find_extra_method (method, &amodule);
2755 g_assert (index != 0xffffff);
2757 symbol = g_strdup_printf ("ut_e_%d", index);
2759 amodule = method->klass->image->aot_module;
2762 symbol = g_strdup_printf ("ut_%d", method_index);
2764 code = load_function (amodule, symbol);
2770 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
2775 symbol = g_strdup_printf ("rgctx_fetch_trampoline_%u", slot);
2776 code = load_function (mono_defaults.corlib->aot_module, symbol);
2782 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
2788 MonoAotModule *amodule;
2790 code = get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK, 1, &amodule, &got_offset, NULL);
2792 /* Save the entries into an array */
2793 buf = mono_domain_alloc (domain, (count + 1) * 2 * sizeof (gpointer));
2794 for (i = 0; i < count; ++i) {
2795 MonoIMTCheckItem *item = imt_entries [i];
2797 g_assert (item->key);
2799 g_assert (!item->has_target_code);
2801 buf [(i * 2)] = item->key;
2802 buf [(i * 2) + 1] = &(vtable->vtable [item->value.vtable_slot]);
2804 buf [(count * 2)] = NULL;
2805 buf [(count * 2) + 1] = fail_tramp;
2807 amodule->got [got_offset] = buf;
2816 mono_aot_init (void)
2821 mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
2827 mono_aot_is_got_entry (guint8 *code, guint8 *addr)
2833 mono_aot_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
2839 mono_aot_get_class_from_name (MonoImage *image, const char *name_space, const char *name, MonoClass **klass)
2845 mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
2851 mono_aot_get_method_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
2857 mono_aot_get_plt_entry (guint8 *code)
2863 mono_aot_plt_resolve (gpointer aot_module, guint32 plt_info_offset, guint8 *code)
2869 mono_aot_get_method_from_vt_slot (MonoDomain *domain, MonoVTable *vtable, int slot)
2875 mono_aot_get_plt_info_offset (gssize *regs, guint8 *code)
2877 g_assert_not_reached ();
2883 mono_aot_create_specific_trampoline (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
2885 g_assert_not_reached ();
2890 mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr)
2892 g_assert_not_reached ();
2897 mono_aot_get_named_code (const char *name)
2899 g_assert_not_reached ();
2904 mono_aot_get_unbox_trampoline (MonoMethod *method)
2906 g_assert_not_reached ();
2911 mono_aot_get_lazy_fetch_trampoline (guint32 slot)
2913 g_assert_not_reached ();
2918 mono_aot_get_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp)
2920 g_assert_not_reached ();
2925 mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
2927 g_assert_not_reached ();