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__)) && !defined(__linux__)
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_SYNCHRONIZED
: {
525 MonoMethod
*m
= decode_method_ref_2 (module
, p
, &p
);
529 *method
= mono_marshal_get_synchronized_wrapper (m
);
532 case MONO_WRAPPER_UNKNOWN
: {
533 MonoMethodDesc
*desc
;
534 MonoMethod
*orig_method
;
535 int subtype
= decode_value (p
, &p
);
537 if (subtype
== MONO_AOT_WRAPPER_MONO_ENTER
)
538 desc
= mono_method_desc_new ("Monitor:Enter", FALSE
);
539 else if (subtype
== MONO_AOT_WRAPPER_MONO_EXIT
)
540 desc
= mono_method_desc_new ("Monitor:Exit", FALSE
);
542 g_assert_not_reached ();
543 orig_method
= mono_method_desc_search_in_class (desc
, mono_defaults
.monitor_class
);
544 g_assert (orig_method
);
545 mono_method_desc_free (desc
);
546 *method
= mono_monitor_get_fast_path (orig_method
);
549 case MONO_WRAPPER_RUNTIME_INVOKE
: {
551 MonoMethod
*m
= decode_method_ref_2 (module
, p
, &p
);
555 *method
= mono_marshal_get_runtime_invoke (m
, FALSE
);
559 g_assert_not_reached ();
561 } else if (image_index
== MONO_AOT_METHODREF_WRAPPER_NAME
) {
562 /* Can't decode these */
563 g_assert_not_reached ();
564 } else if (image_index
== MONO_AOT_METHODREF_METHODSPEC
) {
565 image_index
= decode_value (p
, &p
);
566 *token
= decode_value (p
, &p
);
568 image
= load_image (module
, image_index
);
571 } else if (image_index
== MONO_AOT_METHODREF_GINST
) {
573 MonoGenericContext ctx
;
576 * These methods do not have a token which resolves them, so we
577 * resolve them immediately.
579 klass
= decode_klass_ref (module
, p
, &p
);
583 image_index
= decode_value (p
, &p
);
584 *token
= decode_value (p
, &p
);
586 image
= load_image (module
, image_index
);
590 *method
= mono_get_method_full (image
, *token
, NULL
, NULL
);
594 memset (&ctx
, 0, sizeof (ctx
));
596 if (FALSE
&& klass
->generic_class
) {
597 ctx
.class_inst
= klass
->generic_class
->context
.class_inst
;
598 ctx
.method_inst
= NULL
;
600 *method
= mono_class_inflate_generic_method_full (*method
, klass
, &ctx
);
603 memset (&ctx
, 0, sizeof (ctx
));
605 if (!decode_generic_context (module
, &ctx
, p
, &p
))
608 *method
= mono_class_inflate_generic_method_full (*method
, klass
, &ctx
);
609 } else if (image_index
== MONO_AOT_METHODREF_ARRAY
) {
613 klass
= decode_klass_ref (module
, p
, &p
);
616 method_type
= decode_value (p
, &p
);
618 switch (method_type
) {
620 *method
= mono_class_get_method_from_name (klass
, ".ctor", klass
->rank
);
623 *method
= mono_class_get_method_from_name (klass
, ".ctor", klass
->rank
* 2);
626 *method
= mono_class_get_method_from_name (klass
, "Get", -1);
629 *method
= mono_class_get_method_from_name (klass
, "Address", -1);
632 *method
= mono_class_get_method_from_name (klass
, "Set", -1);
635 g_assert_not_reached ();
638 g_assert (image_index
< MONO_AOT_METHODREF_MIN
);
639 *token
= MONO_TOKEN_METHOD_DEF
| (value
& 0xffffff);
641 image
= load_image (module
, image_index
);
652 * decode_method_ref_2:
654 * Similar to decode_method_ref, but resolve and return the method itself.
657 decode_method_ref_2 (MonoAotModule
*module
, guint8
*buf
, guint8
**endbuf
)
661 MonoImage
*image
= decode_method_ref (module
, &token
, &method
, NULL
, buf
, endbuf
);
667 method
= mono_get_method (image
, token
, NULL
);
673 make_writable (guint8
* addr
, guint32 len
)
679 g_error ("Attempt to make AOT memory writable while running in aot-only mode.\n");
681 page_start
= (guint8
*) (((gssize
) (addr
)) & ~ (mono_pagesize () - 1));
682 pages
= (addr
+ len
- page_start
+ mono_pagesize () - 1) / mono_pagesize ();
684 err
= mono_mprotect (page_start
, pages
* mono_pagesize (), MONO_MMAP_READ
| MONO_MMAP_WRITE
| MONO_MMAP_EXEC
);
689 create_cache_structure (void)
695 home
= g_get_home_dir ();
699 tmp
= g_build_filename (home
, ".mono", NULL
);
700 if (!g_file_test (tmp
, G_FILE_TEST_IS_DIR
)) {
701 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT creating directory %s", tmp
);
702 #ifdef PLATFORM_WIN32
705 err
= mkdir (tmp
, 0777);
708 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT failed: %s", g_strerror (errno
));
714 tmp
= g_build_filename (home
, ".mono", "aot-cache", NULL
);
715 if (!g_file_test (tmp
, G_FILE_TEST_IS_DIR
)) {
716 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT creating directory %s", tmp
);
717 #ifdef PLATFORM_WIN32
720 err
= mkdir (tmp
, 0777);
723 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT failed: %s", g_strerror (errno
));
732 * load_aot_module_from_cache:
734 * Experimental code to AOT compile loaded assemblies on demand.
737 * - Add environment variable MONO_AOT_CACHE_OPTIONS
738 * - Add options for controlling the cache size
739 * - Handle full cache by deleting old assemblies lru style
740 * - Add options for excluding assemblies during development
741 * - Maybe add a threshold after an assembly is AOT compiled
742 * - invoking a new mono process is a security risk
743 * - recompile the AOT module if one of its dependencies changes
746 load_aot_module_from_cache (MonoAssembly
*assembly
, char **aot_name
)
748 char *fname
, *cmd
, *tmp2
, *aot_options
;
757 if (assembly
->image
->dynamic
)
760 create_cache_structure ();
762 home
= g_get_home_dir ();
764 tmp2
= g_strdup_printf ("%s-%s%s", assembly
->image
->assembly_name
, assembly
->image
->guid
, SHARED_EXT
);
765 fname
= g_build_filename (home
, ".mono", "aot-cache", tmp2
, NULL
);
769 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT trying to load from cache: '%s'.", fname
);
770 module
= mono_dl_open (fname
, MONO_DL_LAZY
, NULL
);
773 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT not found.");
775 mono_trace (G_LOG_LEVEL_MESSAGE
, MONO_TRACE_AOT
, "AOT precompiling assembly '%s'... ", assembly
->image
->name
);
777 aot_options
= g_strdup_printf ("outfile=%s", fname
);
779 if (spawn_compiler
) {
780 /* FIXME: security */
781 /* FIXME: Has to pass the assembly loading path to the child process */
782 cmd
= g_strdup_printf ("mono -O=all --aot=%s %s", aot_options
, assembly
->image
->name
);
784 res
= g_spawn_command_line_sync (cmd
, &out
, &err
, &exit_status
, NULL
);
786 #if !defined(PLATFORM_WIN32) && !defined(__ppc__) && !defined(__ppc64__) && !defined(__powerpc__)
788 if (!WIFEXITED (exit_status
) && (WEXITSTATUS (exit_status
) == 0))
789 mono_trace (G_LOG_LEVEL_MESSAGE
, MONO_TRACE_AOT
, "AOT failed: %s.", err
);
791 mono_trace (G_LOG_LEVEL_MESSAGE
, MONO_TRACE_AOT
, "AOT succeeded.");
798 res
= mono_compile_assembly (assembly
, mono_parse_default_optimizations (NULL
), aot_options
);
800 mono_trace (G_LOG_LEVEL_MESSAGE
, MONO_TRACE_AOT
, "AOT failed.");
802 mono_trace (G_LOG_LEVEL_MESSAGE
, MONO_TRACE_AOT
, "AOT succeeded.");
806 module
= mono_dl_open (fname
, MONO_DL_LAZY
, NULL
);
808 g_free (aot_options
);
815 find_symbol (MonoDl
*module
, gpointer
*globals
, const char *name
, gpointer
*value
)
821 for (i
= 0; globals
[i
]; i
+= 2) {
822 if (strcmp (globals
[i
], name
) == 0) {
823 *value
= globals
[i
+ 1];
828 mono_dl_symbol (module
, name
, value
);
833 load_aot_module (MonoAssembly
*assembly
, gpointer user_data
)
836 MonoAotModule
*amodule
;
838 gboolean usable
= TRUE
;
839 char *saved_guid
= NULL
;
840 char *aot_version
= NULL
;
841 char *runtime_version
, *build_info
;
842 char *opt_flags
= NULL
;
844 gboolean full_aot
= FALSE
;
845 MonoAotFileInfo
*file_info
= NULL
;
849 if (mono_compile_aot
)
852 if (assembly
->image
->aot_module
)
854 * Already loaded. This can happen because the assembly loading code might invoke
855 * the assembly load hooks multiple times for the same assembly.
859 if (assembly
->image
->dynamic
)
862 if (mono_security_get_mode () == MONO_SECURITY_MODE_CAS
)
866 if (static_aot_modules
)
867 globals
= g_hash_table_lookup (static_aot_modules
, assembly
->aname
.name
);
873 /* Statically linked AOT module */
875 aot_name
= g_strdup_printf ("%s", assembly
->aname
.name
);
876 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "Found statically linked AOT module '%s'.\n", aot_name
);
879 sofile
= load_aot_module_from_cache (assembly
, &aot_name
);
882 aot_name
= g_strdup_printf ("%s%s", assembly
->image
->name
, SHARED_EXT
);
884 sofile
= mono_dl_open (aot_name
, MONO_DL_LAZY
, &err
);
887 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT failed to load AOT module %s: %s\n", aot_name
, err
);
893 if (!sofile
&& !globals
) {
895 fprintf (stderr
, "Failed to load AOT module '%s' in aot-only mode.\n", aot_name
);
902 find_symbol (sofile
, globals
, "mono_assembly_guid", (gpointer
*) &saved_guid
);
903 find_symbol (sofile
, globals
, "mono_aot_version", (gpointer
*) &aot_version
);
904 find_symbol (sofile
, globals
, "mono_aot_opt_flags", (gpointer
*)&opt_flags
);
905 find_symbol (sofile
, globals
, "mono_runtime_version", (gpointer
*)&runtime_version
);
906 find_symbol (sofile
, globals
, "mono_aot_got_addr", (gpointer
*)&got_addr
);
908 if (!aot_version
|| strcmp (aot_version
, MONO_AOT_FILE_VERSION
)) {
909 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
);
913 if (!saved_guid
|| strcmp (assembly
->image
->guid
, saved_guid
)) {
914 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT module %s is out of date.\n", aot_name
);
919 build_info
= mono_get_runtime_build_info ();
920 if (!runtime_version
|| ((strlen (runtime_version
) > 0 && strcmp (runtime_version
, build_info
)))) {
921 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
);
929 find_symbol (sofile
, globals
, "mono_aot_full_aot", (gpointer
*)&full_aot_str
);
931 if (full_aot_str
&& !strcmp (full_aot_str
, "TRUE"))
935 if (mono_aot_only
&& !full_aot
) {
936 fprintf (stderr
, "Can't use AOT image '%s' in aot-only mode because it is not compiled with --aot=full.\n", aot_name
);
939 if (!mono_aot_only
&& full_aot
) {
940 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT module %s is compiled with --aot=full.\n", aot_name
);
946 fprintf (stderr
, "Failed to load AOT module '%s' while running in aot-only mode.\n", aot_name
);
951 mono_dl_close (sofile
);
952 assembly
->image
->aot_module
= NULL
;
956 find_symbol (sofile
, globals
, "mono_aot_file_info", (gpointer
*)&file_info
);
957 g_assert (file_info
);
959 amodule
= g_new0 (MonoAotModule
, 1);
960 amodule
->aot_name
= aot_name
;
961 amodule
->assembly
= assembly
;
963 memcpy (&amodule
->info
, file_info
, sizeof (*file_info
));
965 amodule
->got
= *got_addr
;
966 amodule
->got
[0] = assembly
->image
;
967 amodule
->globals
= globals
;
968 amodule
->sofile
= sofile
;
969 amodule
->method_to_code
= g_hash_table_new (mono_aligned_addr_hash
, NULL
);
971 sscanf (opt_flags
, "%d", &amodule
->opts
);
973 /* Read image table */
975 guint32 table_len
, i
;
978 find_symbol (sofile
, globals
, "mono_image_table", (gpointer
*)&table
);
981 table_len
= *(guint32
*)table
;
982 table
+= sizeof (guint32
);
983 amodule
->image_table
= g_new0 (MonoImage
*, table_len
);
984 amodule
->image_names
= g_new0 (MonoAssemblyName
, table_len
);
985 amodule
->image_guids
= g_new0 (char*, table_len
);
986 amodule
->image_table_len
= table_len
;
987 for (i
= 0; i
< table_len
; ++i
) {
988 MonoAssemblyName
*aname
= &(amodule
->image_names
[i
]);
990 aname
->name
= g_strdup (table
);
991 table
+= strlen (table
) + 1;
992 amodule
->image_guids
[i
] = g_strdup (table
);
993 table
+= strlen (table
) + 1;
995 aname
->culture
= g_strdup (table
);
996 table
+= strlen (table
) + 1;
997 memcpy (aname
->public_key_token
, table
, strlen (table
) + 1);
998 table
+= strlen (table
) + 1;
1000 table
= ALIGN_PTR_TO (table
, 8);
1001 aname
->flags
= *(guint32
*)table
;
1003 aname
->major
= *(guint32
*)table
;
1005 aname
->minor
= *(guint32
*)table
;
1007 aname
->build
= *(guint32
*)table
;
1009 aname
->revision
= *(guint32
*)table
;
1014 /* Read method and method_info tables */
1015 find_symbol (sofile
, globals
, "method_offsets", (gpointer
*)&amodule
->code_offsets
);
1016 find_symbol (sofile
, globals
, "methods", (gpointer
*)&amodule
->code
);
1017 find_symbol (sofile
, globals
, "methods_end", (gpointer
*)&amodule
->code_end
);
1018 find_symbol (sofile
, globals
, "method_info_offsets", (gpointer
*)&amodule
->method_info_offsets
);
1019 find_symbol (sofile
, globals
, "method_info", (gpointer
*)&amodule
->method_info
);
1020 find_symbol (sofile
, globals
, "ex_info_offsets", (gpointer
*)&amodule
->ex_info_offsets
);
1021 find_symbol (sofile
, globals
, "ex_info", (gpointer
*)&amodule
->ex_info
);
1022 find_symbol (sofile
, globals
, "method_order", (gpointer
*)&amodule
->method_order
);
1023 find_symbol (sofile
, globals
, "method_order_end", (gpointer
*)&amodule
->method_order_end
);
1024 find_symbol (sofile
, globals
, "class_info", (gpointer
*)&amodule
->class_info
);
1025 find_symbol (sofile
, globals
, "class_info_offsets", (gpointer
*)&amodule
->class_info_offsets
);
1026 find_symbol (sofile
, globals
, "class_name_table", (gpointer
*)&amodule
->class_name_table
);
1027 find_symbol (sofile
, globals
, "extra_method_table", (gpointer
*)&amodule
->extra_method_table
);
1028 find_symbol (sofile
, globals
, "extra_method_info", (gpointer
*)&amodule
->extra_method_info
);
1029 find_symbol (sofile
, globals
, "extra_method_info_offsets", (gpointer
*)&amodule
->extra_method_info_offsets
);
1030 find_symbol (sofile
, globals
, "got_info", (gpointer
*)&amodule
->got_info
);
1031 find_symbol (sofile
, globals
, "got_info_offsets", (gpointer
*)&amodule
->got_info_offsets
);
1032 find_symbol (sofile
, globals
, "specific_trampolines", (gpointer
*)&(amodule
->trampolines
[MONO_AOT_TRAMP_SPECIFIC
]));
1033 find_symbol (sofile
, globals
, "static_rgctx_trampolines", (gpointer
*)&(amodule
->trampolines
[MONO_AOT_TRAMP_STATIC_RGCTX
]));
1034 find_symbol (sofile
, globals
, "imt_thunks", (gpointer
*)&(amodule
->trampolines
[MONO_AOT_TRAMP_IMT_THUNK
]));
1035 find_symbol (sofile
, globals
, "unwind_info", (gpointer
)&amodule
->unwind_info
);
1036 find_symbol (sofile
, globals
, "mem_end", (gpointer
*)&amodule
->mem_end
);
1038 amodule
->mem_begin
= amodule
->code
;
1040 find_symbol (sofile
, globals
, "plt", (gpointer
*)&amodule
->plt
);
1041 find_symbol (sofile
, globals
, "plt_end", (gpointer
*)&amodule
->plt_end
);
1043 if (make_unreadable
) {
1044 #ifndef PLATFORM_WIN32
1047 int pages
, err
, len
;
1049 addr
= amodule
->mem_begin
;
1050 len
= amodule
->mem_end
- amodule
->mem_begin
;
1052 /* Round down in both directions to avoid modifying data which is not ours */
1053 page_start
= (guint8
*) (((gssize
) (addr
)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
1054 pages
= ((addr
+ len
- page_start
+ mono_pagesize () - 1) / mono_pagesize ()) - 1;
1055 err
= mono_mprotect (page_start
, pages
* mono_pagesize (), MONO_MMAP_NONE
);
1056 g_assert (err
== 0);
1062 aot_code_low_addr
= MIN (aot_code_low_addr
, (gsize
)amodule
->code
);
1063 aot_code_high_addr
= MAX (aot_code_high_addr
, (gsize
)amodule
->code_end
);
1065 g_hash_table_insert (aot_modules
, assembly
, amodule
);
1068 mono_jit_info_add_aot_module (assembly
->image
, amodule
->code
, amodule
->code_end
);
1070 assembly
->image
->aot_module
= amodule
;
1072 if (mono_aot_only
) {
1073 if (mono_defaults
.corlib
) {
1074 /* The second got slot contains the mscorlib got addr */
1075 MonoAotModule
*mscorlib_amodule
= mono_defaults
.corlib
->aot_module
;
1077 amodule
->got
[1] = mscorlib_amodule
->got
;
1079 amodule
->got
[1] = amodule
->got
;
1084 * Since we store methoddef and classdef tokens when referring to methods/classes in
1085 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
1086 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
1087 * non-lazily, since we can't handle out-of-date errors later.
1089 for (i
= 0; i
< amodule
->image_table_len
; ++i
)
1090 load_image (amodule
, i
);
1092 if (amodule
->out_of_date
) {
1093 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
);
1094 if (mono_aot_only
) {
1095 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
);
1100 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT loaded AOT Module for %s.\n", assembly
->image
->name
);
1104 * mono_aot_register_globals:
1106 * This is called by the ctor function in AOT images compiled with the
1107 * 'no-dlsym' option.
1110 mono_aot_register_globals (gpointer
*globals
)
1112 g_assert_not_reached ();
1116 * mono_aot_register_module:
1118 * This should be called by embedding code to register AOT modules statically linked
1119 * into the executable. AOT_INFO should be the value of the
1120 * 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
1123 mono_aot_register_module (gpointer
*aot_info
)
1131 /* Determine the assembly name */
1132 find_symbol (NULL
, globals
, "mono_aot_assembly_name", (gpointer
*)&aname
);
1135 /* This could be called before startup */
1139 if (!static_aot_modules
)
1140 static_aot_modules
= g_hash_table_new (g_str_hash
, g_str_equal
);
1142 g_hash_table_insert (static_aot_modules
, aname
, globals
);
1149 mono_aot_init (void)
1151 InitializeCriticalSection (&aot_mutex
);
1152 aot_modules
= g_hash_table_new (NULL
, NULL
);
1154 mono_install_assembly_load_hook (load_aot_module
, NULL
);
1156 if (g_getenv ("MONO_LASTAOT"))
1157 mono_last_aot_method
= atoi (g_getenv ("MONO_LASTAOT"));
1158 if (g_getenv ("MONO_AOT_CACHE"))
1159 use_aot_cache
= TRUE
;
1163 decode_cached_class_info (MonoAotModule
*module
, MonoCachedClassInfo
*info
, guint8
*buf
, guint8
**endbuf
)
1167 info
->vtable_size
= decode_value (buf
, &buf
);
1168 if (info
->vtable_size
== -1)
1171 flags
= decode_value (buf
, &buf
);
1172 info
->ghcimpl
= (flags
>> 0) & 0x1;
1173 info
->has_finalize
= (flags
>> 1) & 0x1;
1174 info
->has_cctor
= (flags
>> 2) & 0x1;
1175 info
->has_nested_classes
= (flags
>> 3) & 0x1;
1176 info
->blittable
= (flags
>> 4) & 0x1;
1177 info
->has_references
= (flags
>> 5) & 0x1;
1178 info
->has_static_refs
= (flags
>> 6) & 0x1;
1179 info
->no_special_static_fields
= (flags
>> 7) & 0x1;
1181 if (info
->has_cctor
) {
1182 MonoImage
*cctor_image
= decode_method_ref (module
, &info
->cctor_token
, NULL
, NULL
, buf
, &buf
);
1186 if (info
->has_finalize
) {
1187 info
->finalize_image
= decode_method_ref (module
, &info
->finalize_token
, NULL
, NULL
, buf
, &buf
);
1188 if (!info
->finalize_image
)
1192 info
->instance_size
= decode_value (buf
, &buf
);
1193 info
->class_size
= decode_value (buf
, &buf
);
1194 info
->packing_size
= decode_value (buf
, &buf
);
1195 info
->min_align
= decode_value (buf
, &buf
);
1203 mono_aot_get_method_from_vt_slot (MonoDomain
*domain
, MonoVTable
*vtable
, int slot
)
1206 MonoClass
*klass
= vtable
->klass
;
1207 MonoAotModule
*aot_module
= klass
->image
->aot_module
;
1209 MonoCachedClassInfo class_info
;
1213 gboolean no_aot_trampoline
;
1215 if (MONO_CLASS_IS_INTERFACE (klass
) || klass
->rank
|| !aot_module
)
1218 info
= &aot_module
->class_info
[aot_module
->class_info_offsets
[mono_metadata_token_index (klass
->type_token
) - 1]];
1221 err
= decode_cached_class_info (aot_module
, &class_info
, p
, &p
);
1225 for (i
= 0; i
< slot
; ++i
)
1226 decode_method_ref (aot_module
, &token
, NULL
, NULL
, p
, &p
);
1228 image
= decode_method_ref (aot_module
, &token
, NULL
, &no_aot_trampoline
, p
, &p
);
1231 if (no_aot_trampoline
)
1234 if (mono_metadata_token_index (token
) == 0)
1237 return mono_aot_get_method_from_token (domain
, image
, token
);
1241 mono_aot_get_cached_class_info (MonoClass
*klass
, MonoCachedClassInfo
*res
)
1243 MonoAotModule
*aot_module
= klass
->image
->aot_module
;
1247 if (klass
->rank
|| !aot_module
)
1250 p
= (guint8
*)&aot_module
->class_info
[aot_module
->class_info_offsets
[mono_metadata_token_index (klass
->type_token
) - 1]];
1252 err
= decode_cached_class_info (aot_module
, res
, p
, &p
);
1260 * mono_aot_get_class_from_name:
1262 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
1263 * using a cache stored in the AOT file.
1264 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
1266 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
1270 mono_aot_get_class_from_name (MonoImage
*image
, const char *name_space
, const char *name
, MonoClass
**klass
)
1272 MonoAotModule
*aot_module
= image
->aot_module
;
1273 guint16
*table
, *entry
;
1276 char full_name_buf
[1024];
1278 const char *name2
, *name_space2
;
1280 guint32 cols
[MONO_TYPEDEF_SIZE
];
1281 GHashTable
*nspace_table
;
1283 if (!aot_module
|| !aot_module
->class_name_table
)
1290 /* First look in the cache */
1291 if (!aot_module
->name_cache
)
1292 aot_module
->name_cache
= g_hash_table_new (g_str_hash
, g_str_equal
);
1293 nspace_table
= g_hash_table_lookup (aot_module
->name_cache
, name_space
);
1295 *klass
= g_hash_table_lookup (nspace_table
, name
);
1302 table_size
= aot_module
->class_name_table
[0];
1303 table
= aot_module
->class_name_table
+ 1;
1305 if (name_space
[0] == '\0')
1306 full_name
= g_strdup_printf ("%s", name
);
1308 if (strlen (name_space
) + strlen (name
) < 1000) {
1309 sprintf (full_name_buf
, "%s.%s", name_space
, name
);
1310 full_name
= full_name_buf
;
1312 full_name
= g_strdup_printf ("%s.%s", name_space
, name
);
1315 hash
= mono_aot_str_hash (full_name
) % table_size
;
1316 if (full_name
!= full_name_buf
)
1319 entry
= &table
[hash
* 2];
1321 if (entry
[0] != 0) {
1322 t
= &image
->tables
[MONO_TABLE_TYPEDEF
];
1325 guint32 index
= entry
[0];
1326 guint32 next
= entry
[1];
1327 guint32 token
= mono_metadata_make_token (MONO_TABLE_TYPEDEF
, index
);
1329 name_table_accesses
++;
1331 mono_metadata_decode_row (t
, index
- 1, cols
, MONO_TYPEDEF_SIZE
);
1333 name2
= mono_metadata_string_heap (image
, cols
[MONO_TYPEDEF_NAME
]);
1334 name_space2
= mono_metadata_string_heap (image
, cols
[MONO_TYPEDEF_NAMESPACE
]);
1336 if (!strcmp (name
, name2
) && !strcmp (name_space
, name_space2
)) {
1338 *klass
= mono_class_get (image
, token
);
1343 nspace_table
= g_hash_table_lookup (aot_module
->name_cache
, name_space
);
1344 if (!nspace_table
) {
1345 nspace_table
= g_hash_table_new (g_str_hash
, g_str_equal
);
1346 g_hash_table_insert (aot_module
->name_cache
, (char*)name_space2
, nspace_table
);
1348 g_hash_table_insert (nspace_table
, (char*)name2
, *klass
);
1355 entry
= &table
[next
* 2];
1368 * LOCKING: Acquires the domain lock.
1371 decode_exception_debug_info (MonoAotModule
*aot_module
, MonoDomain
*domain
,
1372 MonoMethod
*method
, guint8
* ex_info
, guint8
*code
)
1376 guint code_len
, used_int_regs
, flags
;
1377 gboolean has_generic_jit_info
, has_dwarf_unwind_info
;
1379 MonoMethodHeader
*header
;
1380 int generic_info_size
;
1382 header
= mono_method_get_header (method
);
1384 /* Load the method info from the AOT file */
1387 code_len
= decode_value (p
, &p
);
1388 flags
= decode_value (p
, &p
);
1389 has_generic_jit_info
= (flags
& 1) != 0;
1390 has_dwarf_unwind_info
= (flags
& 2) != 0;
1391 if (has_dwarf_unwind_info
) {
1394 offset
= decode_value (p
, &p
);
1395 g_assert (offset
< (1 << 30));
1396 used_int_regs
= offset
;
1398 used_int_regs
= decode_value (p
, &p
);
1400 if (has_generic_jit_info
)
1401 generic_info_size
= sizeof (MonoGenericJitInfo
);
1403 generic_info_size
= 0;
1405 /* Exception table */
1406 if (header
&& header
->num_clauses
) {
1408 mono_domain_alloc0 (domain
, sizeof (MonoJitInfo
) + (sizeof (MonoJitExceptionInfo
) * header
->num_clauses
) + generic_info_size
);
1409 jinfo
->num_clauses
= header
->num_clauses
;
1411 for (i
= 0; i
< header
->num_clauses
; ++i
) {
1412 MonoExceptionClause
*ec
= &header
->clauses
[i
];
1413 MonoJitExceptionInfo
*ei
= &jinfo
->clauses
[i
];
1415 ei
->flags
= ec
->flags
;
1416 ei
->exvar_offset
= decode_value (p
, &p
);
1418 if (ei
->flags
== MONO_EXCEPTION_CLAUSE_FILTER
)
1419 ei
->data
.filter
= code
+ decode_value (p
, &p
);
1421 ei
->data
.catch_class
= ec
->data
.catch_class
;
1423 ei
->try_start
= code
+ decode_value (p
, &p
);
1424 ei
->try_end
= code
+ decode_value (p
, &p
);
1425 ei
->handler_start
= code
+ decode_value (p
, &p
);
1429 jinfo
= mono_domain_alloc0 (domain
, sizeof (MonoJitInfo
) + generic_info_size
);
1432 jinfo
->code_size
= code_len
;
1433 jinfo
->used_regs
= used_int_regs
;
1434 jinfo
->method
= method
;
1435 jinfo
->code_start
= code
;
1436 jinfo
->domain_neutral
= 0;
1437 jinfo
->from_aot
= 1;
1439 if (has_generic_jit_info
) {
1440 MonoGenericJitInfo
*gi
;
1442 jinfo
->has_generic_jit_info
= 1;
1444 gi
= mono_jit_info_get_generic_jit_info (jinfo
);
1447 gi
->has_this
= decode_value (p
, &p
);
1448 gi
->this_reg
= decode_value (p
, &p
);
1449 gi
->this_offset
= decode_value (p
, &p
);
1451 /* This currently contains no data */
1452 gi
->generic_sharing_context
= g_new0 (MonoGenericSharingContext
, 1);
1454 jinfo
->method
= decode_method_ref_2 (aot_module
, p
, &p
);
1457 /* Load debug info */
1458 buf_len
= decode_value (p
, &p
);
1459 mono_debug_add_aot_method (domain
, method
, code
, p
, buf_len
);
1465 * mono_aot_get_unwind_info:
1467 * Return a pointer to the DWARF unwind info belonging to JI.
1470 mono_aot_get_unwind_info (MonoJitInfo
*ji
, guint32
*unwind_info_len
)
1472 MonoAotModule
*amodule
= ji
->method
->klass
->image
->aot_module
;
1476 g_assert (ji
->from_aot
);
1478 p
= amodule
->unwind_info
+ ji
->used_regs
;
1479 *unwind_info_len
= decode_value (p
, &p
);
1484 mono_aot_find_jit_info (MonoDomain
*domain
, MonoImage
*image
, gpointer addr
)
1486 int pos
, left
, right
, offset
, offset1
, offset2
, last_offset
, new_offset
;
1487 int page_index
, method_index
, table_len
, is_wrapper
;
1489 MonoAotModule
*amodule
= image
->aot_module
;
1492 guint8
*code
, *ex_info
, *p
;
1493 guint32
*table
, *ptr
;
1499 if (domain
!= mono_get_root_domain ())
1503 offset
= (guint8
*)addr
- amodule
->code
;
1505 /* First search through the index */
1506 ptr
= amodule
->method_order
;
1511 if (*ptr
== 0xffffff)
1515 while (*ptr
!= 0xffffff) {
1516 guint32 method_index
= ptr
[0];
1517 new_offset
= amodule
->code_offsets
[method_index
];
1519 if (offset
>= last_offset
&& offset
< new_offset
) {
1525 last_offset
= new_offset
;
1529 /* Skip rest of index */
1530 while (*ptr
!= 0xffffff)
1535 table_len
= amodule
->method_order_end
- table
;
1537 g_assert (table
<= amodule
->method_order_end
);
1540 left
= (page_index
* 1024);
1541 right
= left
+ 1024;
1543 if (right
> table_len
)
1546 offset1
= amodule
->code_offsets
[table
[left
]];
1547 g_assert (offset1
<= offset
);
1549 //printf ("Found in index: 0x%x 0x%x 0x%x\n", offset, last_offset, new_offset);
1552 //printf ("Not found in index: 0x%x\n", offset);
1557 /* Binary search inside the method_order table to find the method */
1559 pos
= (left
+ right
) / 2;
1561 g_assert (table
+ pos
<= amodule
->method_order_end
);
1563 //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]]);
1565 offset1
= amodule
->code_offsets
[table
[pos
]];
1566 if (table
+ pos
+ 1 >= amodule
->method_order_end
)
1567 offset2
= amodule
->code_end
- amodule
->code
;
1569 offset2
= amodule
->code_offsets
[table
[pos
+ 1]];
1571 if (offset
< offset1
)
1573 else if (offset
>= offset2
)
1579 method_index
= table
[pos
];
1581 /* Might be a wrapper/extra method */
1582 if (amodule
->extra_methods
) {
1584 method
= g_hash_table_lookup (amodule
->extra_methods
, GUINT_TO_POINTER (method_index
));
1591 if (method_index
>= image
->tables
[MONO_TABLE_METHOD
].rows
) {
1593 * This is hit for extra methods which are called directly, so they are
1594 * not in amodule->extra_methods.
1596 table_len
= amodule
->extra_method_info_offsets
[0];
1597 table
= amodule
->extra_method_info_offsets
+ 1;
1604 pos
= ((left
+ right
) / 2);
1606 g_assert (pos
< table_len
);
1608 if (table
[pos
* 2] < method_index
)
1610 else if (table
[pos
* 2] > method_index
)
1616 p
= amodule
->extra_method_info
+ table
[(pos
* 2) + 1];
1617 is_wrapper
= decode_value (p
, &p
);
1618 g_assert (!is_wrapper
);
1619 method
= decode_method_ref_2 (amodule
, p
, &p
);
1622 token
= mono_metadata_make_token (MONO_TABLE_METHOD
, method_index
+ 1);
1623 method
= mono_get_method (image
, token
, NULL
);
1630 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
1632 code
= &amodule
->code
[amodule
->code_offsets
[method_index
]];
1633 ex_info
= &amodule
->ex_info
[amodule
->ex_info_offsets
[method_index
]];
1635 jinfo
= decode_exception_debug_info (amodule
, domain
, method
, ex_info
, code
);
1637 g_assert ((guint8
*)addr
>= (guint8
*)jinfo
->code_start
);
1638 g_assert ((guint8
*)addr
< (guint8
*)jinfo
->code_start
+ jinfo
->code_size
);
1640 /* Add it to the normal JitInfo tables */
1641 mono_jit_info_table_add (domain
, jinfo
);
1647 decode_patch (MonoAotModule
*aot_module
, MonoMemPool
*mp
, MonoJumpInfo
*ji
, guint8
*buf
, guint8
**endbuf
)
1655 case MONO_PATCH_INFO_METHOD
:
1656 case MONO_PATCH_INFO_METHOD_JUMP
:
1657 case MONO_PATCH_INFO_ICALL_ADDR
:
1658 case MONO_PATCH_INFO_METHOD_RGCTX
: {
1661 gboolean no_aot_trampoline
;
1663 image
= decode_method_ref (aot_module
, &token
, &method
, &no_aot_trampoline
, p
, &p
);
1667 if (!method
&& !mono_aot_only
&& !no_aot_trampoline
&& (ji
->type
== MONO_PATCH_INFO_METHOD
) && (mono_metadata_token_table (token
) == MONO_TABLE_METHOD
)) {
1668 ji
->data
.target
= mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (image
, token
));
1669 ji
->type
= MONO_PATCH_INFO_ABS
;
1673 ji
->data
.method
= method
;
1675 ji
->data
.method
= mono_get_method (image
, token
, NULL
);
1676 g_assert (ji
->data
.method
);
1677 mono_class_init (ji
->data
.method
->klass
);
1681 case MONO_PATCH_INFO_INTERNAL_METHOD
:
1682 case MONO_PATCH_INFO_JIT_ICALL_ADDR
: {
1683 guint32 len
= decode_value (p
, &p
);
1685 ji
->data
.name
= (char*)p
;
1689 case MONO_PATCH_INFO_METHODCONST
:
1691 ji
->data
.method
= decode_method_ref_2 (aot_module
, p
, &p
);
1692 if (!ji
->data
.method
)
1695 case MONO_PATCH_INFO_VTABLE
:
1696 case MONO_PATCH_INFO_CLASS
:
1697 case MONO_PATCH_INFO_IID
:
1698 case MONO_PATCH_INFO_ADJUSTED_IID
:
1700 ji
->data
.klass
= decode_klass_ref (aot_module
, p
, &p
);
1701 if (!ji
->data
.klass
)
1704 case MONO_PATCH_INFO_CLASS_INIT
:
1705 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE
:
1706 ji
->data
.klass
= decode_klass_ref (aot_module
, p
, &p
);
1707 if (!ji
->data
.klass
)
1710 case MONO_PATCH_INFO_IMAGE
:
1711 ji
->data
.image
= load_image (aot_module
, decode_value (p
, &p
));
1712 if (!ji
->data
.image
)
1715 case MONO_PATCH_INFO_FIELD
:
1716 case MONO_PATCH_INFO_SFLDA
:
1718 ji
->data
.field
= decode_field_info (aot_module
, p
, &p
);
1719 if (!ji
->data
.field
)
1722 case MONO_PATCH_INFO_SWITCH
:
1723 ji
->data
.table
= mono_mempool_alloc0 (mp
, sizeof (MonoJumpInfoBBTable
));
1724 ji
->data
.table
->table_size
= decode_value (p
, &p
);
1725 table
= g_new (gpointer
, ji
->data
.table
->table_size
);
1726 ji
->data
.table
->table
= (MonoBasicBlock
**)table
;
1727 for (i
= 0; i
< ji
->data
.table
->table_size
; i
++)
1728 table
[i
] = (gpointer
)(gssize
)decode_value (p
, &p
);
1730 case MONO_PATCH_INFO_R4
: {
1733 ji
->data
.target
= mono_domain_alloc0 (mono_domain_get (), sizeof (float));
1734 val
= decode_value (p
, &p
);
1735 *(float*)ji
->data
.target
= *(float*)&val
;
1738 case MONO_PATCH_INFO_R8
: {
1741 ji
->data
.target
= mono_domain_alloc0 (mono_domain_get (), sizeof (double));
1743 val
[0] = decode_value (p
, &p
);
1744 val
[1] = decode_value (p
, &p
);
1745 *(double*)ji
->data
.target
= *(double*)val
;
1748 case MONO_PATCH_INFO_LDSTR
:
1749 image
= load_image (aot_module
, decode_value (p
, &p
));
1752 ji
->data
.token
= mono_jump_info_token_new (mp
, image
, MONO_TOKEN_STRING
+ decode_value (p
, &p
));
1754 case MONO_PATCH_INFO_RVA
:
1755 case MONO_PATCH_INFO_DECLSEC
:
1756 case MONO_PATCH_INFO_LDTOKEN
:
1757 case MONO_PATCH_INFO_TYPE_FROM_HANDLE
:
1759 image
= load_image (aot_module
, decode_value (p
, &p
));
1762 ji
->data
.token
= mono_jump_info_token_new (mp
, image
, decode_value (p
, &p
));
1764 ji
->data
.token
->has_context
= decode_value (p
, &p
);
1765 if (ji
->data
.token
->has_context
) {
1766 gboolean res
= decode_generic_context (aot_module
, &ji
->data
.token
->context
, p
, &p
);
1771 case MONO_PATCH_INFO_EXC_NAME
:
1772 ji
->data
.klass
= decode_klass_ref (aot_module
, p
, &p
);
1773 if (!ji
->data
.klass
)
1775 ji
->data
.name
= ji
->data
.klass
->name
;
1777 case MONO_PATCH_INFO_METHOD_REL
:
1778 ji
->data
.offset
= decode_value (p
, &p
);
1780 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG
:
1781 case MONO_PATCH_INFO_GENERIC_CLASS_INIT
:
1782 case MONO_PATCH_INFO_MONITOR_ENTER
:
1783 case MONO_PATCH_INFO_MONITOR_EXIT
:
1785 case MONO_PATCH_INFO_RGCTX_FETCH
: {
1787 MonoJumpInfoRgctxEntry
*entry
;
1789 entry
= mono_mempool_alloc0 (mp
, sizeof (MonoJumpInfoRgctxEntry
));
1790 entry
->method
= decode_method_ref_2 (aot_module
, p
, &p
);
1791 entry
->in_mrgctx
= decode_value (p
, &p
);
1792 entry
->info_type
= decode_value (p
, &p
);
1793 entry
->data
= mono_mempool_alloc0 (mp
, sizeof (MonoJumpInfo
));
1794 entry
->data
->type
= decode_value (p
, &p
);
1796 res
= decode_patch (aot_module
, mp
, entry
->data
, p
, &p
);
1799 ji
->data
.rgctx_entry
= entry
;
1803 g_warning ("unhandled type %d", ji
->type
);
1804 g_assert_not_reached ();
1815 static MonoJumpInfo
*
1816 load_patch_info (MonoAotModule
*aot_module
, MonoMemPool
*mp
, int n_patches
,
1817 guint32
**got_slots
,
1818 guint8
*buf
, guint8
**endbuf
)
1820 MonoJumpInfo
*patches
;
1826 patches
= mono_mempool_alloc0 (mp
, sizeof (MonoJumpInfo
) * n_patches
);
1828 *got_slots
= g_malloc (sizeof (guint32
) * n_patches
);
1830 for (pindex
= 0; pindex
< n_patches
; ++pindex
) {
1831 MonoJumpInfo
*ji
= &patches
[pindex
];
1836 got_offset
= decode_value (p
, &p
);
1838 if (aot_module
->got
[got_offset
]) {
1839 /* Already loaded */
1840 //printf ("HIT!\n");
1842 shared_p
= aot_module
->got_info
+ aot_module
->got_info_offsets
[got_offset
];
1844 ji
->type
= decode_value (shared_p
, &shared_p
);
1846 res
= decode_patch (aot_module
, mp
, ji
, shared_p
, &shared_p
);
1851 (*got_slots
) [pindex
] = got_offset
;
1858 g_free (*got_slots
);
1865 register_jump_target_got_slot (MonoDomain
*domain
, MonoMethod
*method
, gpointer
*got_slot
)
1868 * Jump addresses cannot be patched by the trampoline code since it
1869 * does not have access to the caller's address. Instead, we collect
1870 * the addresses of the GOT slots pointing to a method, and patch
1871 * them after the method has been compiled.
1873 MonoJitDomainInfo
*info
= domain_jit_info (domain
);
1876 mono_domain_lock (domain
);
1877 if (!info
->jump_target_got_slot_hash
)
1878 info
->jump_target_got_slot_hash
= g_hash_table_new (NULL
, NULL
);
1879 list
= g_hash_table_lookup (info
->jump_target_got_slot_hash
, method
);
1880 list
= g_slist_prepend (list
, got_slot
);
1881 g_hash_table_insert (info
->jump_target_got_slot_hash
, method
, list
);
1882 mono_domain_unlock (domain
);
1888 * Load the method identified by METHOD_INDEX from the AOT image. Return a
1889 * pointer to the native code of the method, or NULL if not found.
1890 * METHOD might not be set if the caller only has the image/token info.
1893 load_method (MonoDomain
*domain
, MonoAotModule
*aot_module
, MonoImage
*image
, MonoMethod
*method
, guint32 token
, int method_index
)
1896 gboolean from_plt
= method
== NULL
;
1898 int i
, pindex
, n_patches
, used_strings
;
1899 gboolean keep_patches
= TRUE
;
1900 guint8
*p
, *ex_info
;
1901 MonoJitInfo
*jinfo
= NULL
;
1902 guint8
*code
, *info
;
1904 if (mono_profiler_get_events () & MONO_PROFILE_ENTER_LEAVE
)
1907 if ((domain
!= mono_get_root_domain ()) && (!(aot_module
->opts
& MONO_OPT_SHARED
)))
1908 /* Non shared AOT code can't be used in other appdomains */
1911 if (aot_module
->out_of_date
)
1914 if (aot_module
->code_offsets
[method_index
] == 0xffffffff) {
1915 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
)) {
1919 method
= mono_get_method (image
, token
, NULL
);
1920 full_name
= mono_method_full_name (method
, TRUE
);
1921 mono_trace (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
, "AOT NOT FOUND: %s.\n", full_name
);
1927 code
= &aot_module
->code
[aot_module
->code_offsets
[method_index
]];
1928 info
= &aot_module
->method_info
[aot_module
->method_info_offsets
[method_index
]];
1931 if (!aot_module
->methods_loaded
)
1932 aot_module
->methods_loaded
= g_new0 (guint32
, image
->tables
[MONO_TABLE_METHOD
].rows
+ 1);
1935 if ((aot_module
->methods_loaded
[method_index
/ 32] >> (method_index
% 32)) & 0x1)
1938 if (mono_last_aot_method
!= -1) {
1939 if (mono_jit_stats
.methods_aot
> mono_last_aot_method
)
1942 if (method
&& mono_jit_stats
.methods_aot
== mono_last_aot_method
)
1943 printf ("LAST AOT METHOD: %s.%s.%s.\n", method
->klass
->name_space
, method
->klass
->name
, method
->name
);
1949 klass
= method
->klass
;
1950 decode_klass_ref (aot_module
, p
, &p
);
1952 klass
= decode_klass_ref (aot_module
, p
, &p
);
1955 if (aot_module
->opts
& MONO_OPT_SHARED
)
1956 used_strings
= decode_value (p
, &p
);
1960 for (i
= 0; i
< used_strings
; i
++) {
1961 guint token
= decode_value (p
, &p
);
1962 mono_ldstr (mono_get_root_domain (), image
, mono_metadata_token_index (token
));
1965 if (aot_module
->opts
& MONO_OPT_SHARED
)
1966 keep_patches
= FALSE
;
1968 n_patches
= decode_value (p
, &p
);
1970 keep_patches
= FALSE
;
1973 MonoJumpInfo
*patches
;
1979 mp
= mono_mempool_new ();
1981 patches
= load_patch_info (aot_module
, mp
, n_patches
, &got_slots
, p
, &p
);
1982 if (patches
== NULL
)
1985 for (pindex
= 0; pindex
< n_patches
; ++pindex
) {
1986 MonoJumpInfo
*ji
= &patches
[pindex
];
1988 if (!aot_module
->got
[got_slots
[pindex
]]) {
1989 aot_module
->got
[got_slots
[pindex
]] = mono_resolve_patch_target (method
, domain
, code
, ji
, TRUE
);
1990 if (ji
->type
== MONO_PATCH_INFO_METHOD_JUMP
)
1991 aot_module
->got
[got_slots
[pindex
]] = mono_create_ftnptr (domain
, aot_module
->got
[got_slots
[pindex
]]);
1992 if (ji
->type
== MONO_PATCH_INFO_METHOD_JUMP
)
1993 register_jump_target_got_slot (domain
, ji
->data
.method
, &(aot_module
->got
[got_slots
[pindex
]]));
1995 ji
->type
= MONO_PATCH_INFO_NONE
;
2001 mono_mempool_destroy (mp
);
2004 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
)) {
2008 method
= mono_get_method (image
, token
, NULL
);
2010 full_name
= mono_method_full_name (method
, TRUE
);
2013 ex_info
= &aot_module
->ex_info
[aot_module
->ex_info_offsets
[method_index
]];
2014 jinfo
= decode_exception_debug_info (aot_module
, domain
, method
, ex_info
, code
);
2017 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
);
2023 mono_jit_stats
.methods_aot
++;
2025 aot_module
->methods_loaded
[method_index
/ 32] |= 1 << (method_index
% 32);
2027 init_plt (aot_module
);
2029 if (method
&& method
->wrapper_type
)
2030 g_hash_table_insert (aot_module
->method_to_code
, method
, code
);
2034 if (from_plt
&& klass
&& !klass
->generic_container
)
2035 mono_runtime_class_init (mono_class_vtable (domain
, klass
));
2040 /* FIXME: The space in domain->mp is wasted */
2041 if (aot_module
->opts
& MONO_OPT_SHARED
)
2042 /* No need to cache patches */
2043 mono_mempool_destroy (mp
);
2052 find_extra_method_in_amodule (MonoAotModule
*amodule
, MonoMethod
*method
)
2054 guint32 table_size
, entry_size
, hash
;
2055 guint32
*table
, *entry
;
2058 static guint32 n_extra_decodes
;
2063 table_size
= amodule
->extra_method_table
[0];
2064 table
= amodule
->extra_method_table
+ 1;
2067 if (method
->wrapper_type
) {
2068 name
= mono_aot_wrapper_name (method
);
2071 hash
= mono_aot_method_hash (method
) % table_size
;
2073 entry
= &table
[hash
* entry_size
];
2080 guint32 key
= entry
[0];
2081 guint32 value
= entry
[1];
2082 guint32 next
= entry
[entry_size
- 1];
2085 int is_wrapper_name
;
2087 p
= amodule
->extra_method_info
+ key
;
2088 is_wrapper_name
= decode_value (p
, &p
);
2089 if (is_wrapper_name
) {
2090 int wrapper_type
= decode_value (p
, &p
);
2091 if (wrapper_type
== method
->wrapper_type
&& !strcmp (name
, (char*)p
)) {
2095 } else if (can_method_ref_match_method (amodule
, p
, method
)) {
2097 if (!amodule
->method_ref_to_method
)
2098 amodule
->method_ref_to_method
= g_hash_table_new (NULL
, NULL
);
2099 m
= g_hash_table_lookup (amodule
->method_ref_to_method
, p
);
2103 m
= decode_method_ref_2 (amodule
, p
, &p
);
2106 g_hash_table_insert (amodule
->method_ref_to_method
, orig_p
, m
);
2115 /* Special case: wrappers of shared generic methods */
2116 if (m
&& method
->wrapper_type
&& m
->wrapper_type
== m
->wrapper_type
&&
2117 method
->wrapper_type
== MONO_WRAPPER_SYNCHRONIZED
) {
2118 MonoMethod
*w1
= mono_marshal_method_from_wrapper (method
);
2119 MonoMethod
*w2
= mono_marshal_method_from_wrapper (m
);
2121 if (w1
->is_inflated
&& ((MonoMethodInflated
*)w1
)->declaring
== w2
) {
2127 /* Methods decoded needlessly */
2130 printf ("%d %s %s\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE));
2136 entry
= &table
[next
* entry_size
];
2146 add_module_cb (gpointer key
, gpointer value
, gpointer user_data
)
2148 g_ptr_array_add ((GPtrArray
*)user_data
, value
);
2152 * find_extra_method:
2154 * Try finding METHOD in the extra_method table in all AOT images.
2155 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
2156 * module where the method was found.
2159 find_extra_method (MonoMethod
*method
, MonoAotModule
**out_amodule
)
2165 /* Try the method's module first */
2166 *out_amodule
= method
->klass
->image
->aot_module
;
2167 index
= find_extra_method_in_amodule (method
->klass
->image
->aot_module
, method
);
2168 if (index
!= 0xffffff)
2172 * Try all other modules.
2173 * This is needed because generic instances klass->image points to the image
2174 * containing the generic definition, but the native code is generated to the
2175 * AOT image which contains the reference.
2178 /* Make a copy to avoid doing the search inside the aot lock */
2179 modules
= g_ptr_array_new ();
2181 g_hash_table_foreach (aot_modules
, add_module_cb
, modules
);
2185 for (i
= 0; i
< modules
->len
; ++i
) {
2186 MonoAotModule
*amodule
= g_ptr_array_index (modules
, i
);
2188 if (amodule
!= method
->klass
->image
->aot_module
)
2189 index
= find_extra_method_in_amodule (amodule
, method
);
2190 if (index
!= 0xffffff) {
2191 *out_amodule
= amodule
;
2196 g_ptr_array_free (modules
, TRUE
);
2202 * mono_aot_get_method:
2204 * Return a pointer to the AOTed native code for METHOD if it can be found,
2206 * On platforms with function pointers, this doesn't return a function pointer.
2209 mono_aot_get_method (MonoDomain
*domain
, MonoMethod
*method
)
2211 MonoClass
*klass
= method
->klass
;
2212 guint32 method_index
;
2213 MonoAotModule
*amodule
= klass
->image
->aot_module
;
2219 if (amodule
->out_of_date
)
2222 if ((method
->iflags
& METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL
) ||
2223 (method
->flags
& METHOD_ATTRIBUTE_PINVOKE_IMPL
) ||
2224 (method
->iflags
& METHOD_IMPL_ATTRIBUTE_RUNTIME
) ||
2225 (method
->flags
& METHOD_ATTRIBUTE_ABSTRACT
))
2229 * Use the original method instead of its invoke-with-check wrapper.
2230 * This is not a problem when using full-aot, since it doesn't support
2233 if (mono_aot_only
&& method
->wrapper_type
== MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK
)
2234 return mono_aot_get_method (domain
, mono_marshal_method_from_wrapper (method
));
2236 g_assert (klass
->inited
);
2238 /* Find method index */
2239 if (method
->is_inflated
&& mono_method_is_generic_sharable_impl (method
, FALSE
)) {
2240 method
= mono_method_get_declaring_generic_method (method
);
2241 method_index
= mono_metadata_token_index (method
->token
) - 1;
2242 } else if (method
->is_inflated
|| !method
->token
) {
2243 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
2245 code
= g_hash_table_lookup (amodule
->method_to_code
, method
);
2250 method_index
= find_extra_method (method
, &amodule
);
2251 if (method_index
== 0xffffff) {
2252 if (mono_aot_only
&& mono_trace_is_traced (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
)) {
2255 full_name
= mono_method_full_name (method
, TRUE
);
2256 mono_trace (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
, "AOT NOT FOUND: %s.\n", full_name
);
2262 if (method_index
== 0xffffff)
2265 /* Needed by find_jit_info */
2267 if (!amodule
->extra_methods
)
2268 amodule
->extra_methods
= g_hash_table_new (NULL
, NULL
);
2269 g_hash_table_insert (amodule
->extra_methods
, GUINT_TO_POINTER (method_index
), method
);
2273 method_index
= mono_metadata_token_index (method
->token
) - 1;
2276 return load_method (domain
, amodule
, klass
->image
, method
, method
->token
, method_index
);
2280 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
2284 mono_aot_get_method_from_token (MonoDomain
*domain
, MonoImage
*image
, guint32 token
)
2286 MonoAotModule
*aot_module
= image
->aot_module
;
2292 method_index
= mono_metadata_token_index (token
) - 1;
2294 return load_method (domain
, aot_module
, image
, NULL
, token
, method_index
);
2300 } IsGotEntryUserData
;
2303 check_is_got_entry (gpointer key
, gpointer value
, gpointer user_data
)
2305 IsGotEntryUserData
*data
= (IsGotEntryUserData
*)user_data
;
2306 MonoAotModule
*aot_module
= (MonoAotModule
*)value
;
2308 if (aot_module
->got
&& (data
->addr
>= (guint8
*)(aot_module
->got
)) && (data
->addr
< (guint8
*)(aot_module
->got
+ aot_module
->info
.got_size
)))
2313 mono_aot_is_got_entry (guint8
*code
, guint8
*addr
)
2315 IsGotEntryUserData user_data
;
2320 user_data
.addr
= addr
;
2321 user_data
.res
= FALSE
;
2323 g_hash_table_foreach (aot_modules
, check_is_got_entry
, &user_data
);
2326 return user_data
.res
;
2331 MonoAotModule
*module
;
2332 } FindAotModuleUserData
;
2335 find_aot_module_cb (gpointer key
, gpointer value
, gpointer user_data
)
2337 FindAotModuleUserData
*data
= (FindAotModuleUserData
*)user_data
;
2338 MonoAotModule
*aot_module
= (MonoAotModule
*)value
;
2340 if ((data
->addr
>= (guint8
*)(aot_module
->code
)) && (data
->addr
< (guint8
*)(aot_module
->code_end
)))
2341 data
->module
= aot_module
;
2344 static inline MonoAotModule
*
2345 find_aot_module (guint8
*code
)
2347 FindAotModuleUserData user_data
;
2352 /* Reading these need no locking */
2353 if (((gsize
)code
< aot_code_low_addr
) || ((gsize
)code
> aot_code_high_addr
))
2356 user_data
.addr
= code
;
2357 user_data
.module
= NULL
;
2360 g_hash_table_foreach (aot_modules
, find_aot_module_cb
, &user_data
);
2363 return user_data
.module
;
2367 * mono_aot_plt_resolve:
2369 * This function is called by the entries in the PLT to resolve the actual method that
2370 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
2373 mono_aot_plt_resolve (gpointer aot_module
, guint32 plt_info_offset
, guint8
*code
)
2375 #ifdef MONO_ARCH_AOT_SUPPORTED
2376 guint8
*p
, *target
, *plt_entry
;
2378 MonoAotModule
*module
= (MonoAotModule
*)aot_module
;
2382 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
2384 p
= &module
->got_info
[plt_info_offset
];
2386 ji
.type
= decode_value (p
, &p
);
2388 mp
= mono_mempool_new_size (512);
2389 res
= decode_patch (module
, mp
, &ji
, p
, &p
);
2390 // FIXME: Error handling (how ?)
2394 * Avoid calling resolve_patch_target in the full-aot case if possible, since
2395 * it would create a trampoline, and we don't need that.
2396 * We could do this only if the method does not need the special handling
2397 * in mono_magic_trampoline ().
2399 if (mono_aot_only
&& ji
.type
== MONO_PATCH_INFO_METHOD
&& !ji
.data
.method
->is_generic
&& !mono_method_check_context_used (ji
.data
.method
) && !(ji
.data
.method
->iflags
& METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED
) &&
2400 !mono_method_needs_static_rgctx_invoke (ji
.data
.method
, FALSE
)) {
2401 target
= mono_jit_compile_method (ji
.data
.method
);
2403 target
= mono_resolve_patch_target (NULL
, mono_domain_get (), NULL
, &ji
, TRUE
);
2406 mono_mempool_destroy (mp
);
2408 /* Patch the PLT entry with target which might be the actual method not a trampoline */
2409 plt_entry
= mono_aot_get_plt_entry (code
);
2410 g_assert (plt_entry
);
2411 mono_arch_patch_plt_entry (plt_entry
, module
->got
, NULL
, target
);
2415 g_assert_not_reached ();
2423 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
2424 * method in the module is loaded to avoid committing memory by writing to it.
2425 * LOCKING: Assumes the AOT lock is held.
2428 init_plt (MonoAotModule
*amodule
)
2430 #ifndef MONO_CROSS_COMPILE
2432 #ifdef MONO_ARCH_AOT_SUPPORTED
2434 guint8
*buf
= amodule
->plt
;
2435 #elif defined(__x86_64__) || defined(__arm__) || defined(__mono_ppc__)
2441 if (amodule
->plt_inited
)
2444 tramp
= mono_create_specific_trampoline (amodule
, MONO_TRAMPOLINE_AOT_PLT
, mono_get_root_domain (), NULL
);
2447 /* Initialize the first PLT entry */
2448 make_writable (amodule
->plt
, amodule
->plt_end
- amodule
->plt
);
2449 x86_jump_code (buf
, tramp
);
2450 #elif defined(__x86_64__) || defined(__arm__) || defined(__mono_ppc__)
2452 * Initialize the PLT entries in the GOT to point to the default targets.
2455 tramp
= mono_create_ftnptr (mono_domain_get (), tramp
);
2456 plt_0
= mono_create_ftnptr (mono_domain_get (), amodule
->plt
);
2457 /* The first entry points to the AOT trampoline */
2458 ((gpointer
*)amodule
->got
)[amodule
->info
.plt_got_offset_base
] = tramp
;
2459 for (i
= 1; i
< amodule
->info
.plt_size
; ++i
)
2460 /* All the default entries point to the first entry */
2461 ((gpointer
*)amodule
->got
)[amodule
->info
.plt_got_offset_base
+ i
] = plt_0
;
2463 g_assert_not_reached ();
2466 amodule
->plt_inited
= TRUE
;
2469 #endif /* MONO_CROSS_COMPILE */
2473 * mono_aot_get_plt_entry:
2475 * Return the address of the PLT entry called by the code at CODE if exists.
2478 mono_aot_get_plt_entry (guint8
*code
)
2480 MonoAotModule
*aot_module
= find_aot_module (code
);
2481 #if defined(__arm__) || defined(__mono_ppc__)
2488 #if defined(__i386__) || defined(__x86_64__)
2489 if (code
[-5] == 0xe8) {
2490 guint32 disp
= *(guint32
*)(code
- 4);
2491 guint8
*target
= code
+ disp
;
2493 if ((target
>= (guint8
*)(aot_module
->plt
)) && (target
< (guint8
*)(aot_module
->plt_end
)))
2496 #elif defined(__arm__)
2497 ins
= ((guint32
*)(gpointer
)code
) [-1];
2499 /* Should be a 'bl' */
2500 if ((((ins
>> 25) & 0x7) == 0x5) && (((ins
>> 24) & 0x1) == 0x1)) {
2501 gint32 disp
= ((gint32
)ins
) & 0xffffff;
2502 guint8
*target
= code
- 4 + 8 + (disp
* 4);
2504 if ((target
>= (guint8
*)(aot_module
->plt
)) && (target
< (guint8
*)(aot_module
->plt_end
)))
2507 #elif defined(__mono_ppc__)
2508 /* Should be a bl */
2509 ins
= ((guint32
*)(gpointer
)code
) [-1];
2511 if ((ins
>> 26 == 18) && ((ins
& 1) == 1) && ((ins
& 2) == 0)) {
2512 gint32 disp
= (((gint32
)ins
) >> 2) & 0xffffff;
2513 guint8
*target
= code
- 4 + (disp
* 4);
2515 if ((target
>= (guint8
*)(aot_module
->plt
)) && (target
< (guint8
*)(aot_module
->plt_end
)))
2519 g_assert_not_reached ();
2526 * mono_aot_get_plt_info_offset:
2528 * Return the PLT info offset belonging to the plt entry called by CODE.
2531 mono_aot_get_plt_info_offset (gssize
*regs
, guint8
*code
)
2533 guint8
*plt_entry
= mono_aot_get_plt_entry (code
);
2535 g_assert (plt_entry
);
2537 /* The offset is embedded inside the code after the plt entry */
2538 #if defined(__i386__)
2539 return *(guint32
*)(plt_entry
+ 5);
2540 #elif defined(__x86_64__)
2541 return *(guint32
*)(plt_entry
+ 6);
2542 #elif defined(__arm__)
2543 /* The offset is stored as the 4th word of the plt entry */
2544 return ((guint32
*)plt_entry
) [3];
2545 #elif defined(__mono_ppc__)
2546 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
2547 return ((guint32
*)plt_entry
) [8];
2549 return ((guint32
*)plt_entry
) [6];
2552 g_assert_not_reached ();
2558 mono_create_ftnptr_malloc (guint8
*code
)
2560 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
2561 MonoPPCFunctionDescriptor
*ftnptr
= g_malloc0 (sizeof (MonoPPCFunctionDescriptor
));
2563 ftnptr
->code
= code
;
2576 * Load the function named NAME from the aot image.
2579 load_function (MonoAotModule
*amodule
, const char *name
)
2583 int n_patches
, pindex
;
2589 symbol
= g_strdup_printf ("%s", name
);
2590 find_symbol (amodule
->sofile
, amodule
->globals
, symbol
, (gpointer
*)&code
);
2593 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name
, amodule
->aot_name
);
2595 mono_trace (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
, "AOT FOUND function '%s' in AOT file '%s'.\n", name
, amodule
->aot_name
);
2599 symbol
= g_strdup_printf ("%s_p", name
);
2600 find_symbol (amodule
->sofile
, amodule
->globals
, symbol
, (gpointer
*)&p
);
2603 /* Nothing to patch */
2606 /* Similar to mono_aot_load_method () */
2608 n_patches
= decode_value (p
, &p
);
2611 MonoJumpInfo
*patches
;
2614 mp
= mono_mempool_new ();
2616 patches
= load_patch_info (amodule
, mp
, n_patches
, &got_slots
, p
, &p
);
2619 for (pindex
= 0; pindex
< n_patches
; ++pindex
) {
2620 MonoJumpInfo
*ji
= &patches
[pindex
];
2623 if (amodule
->got
[got_slots
[pindex
]])
2627 * When this code is executed, the runtime may not be initalized yet, so
2628 * resolve the patch info by hand.
2630 if (ji
->type
== MONO_PATCH_INFO_JIT_ICALL_ADDR
) {
2631 if (!strcmp (ji
->data
.name
, "mono_get_lmf_addr")) {
2632 target
= mono_get_lmf_addr
;
2633 } else if (!strcmp (ji
->data
.name
, "mono_thread_force_interruption_checkpoint")) {
2634 target
= mono_thread_force_interruption_checkpoint
;
2635 } else if (!strcmp (ji
->data
.name
, "mono_exception_from_token")) {
2636 target
= mono_exception_from_token
;
2637 } else if (!strcmp (ji
->data
.name
, "mono_throw_exception")) {
2638 target
= mono_get_throw_exception ();
2640 } else if (!strcmp (ji
->data
.name
, "mono_amd64_throw_exception")) {
2641 target
= mono_amd64_throw_exception
;
2644 } else if (!strcmp (ji
->data
.name
, "mono_amd64_get_original_ip")) {
2645 target
= mono_amd64_get_original_ip
;
2648 } else if (!strcmp (ji
->data
.name
, "mono_arm_throw_exception")) {
2649 target
= mono_arm_throw_exception
;
2650 } else if (!strcmp (ji
->data
.name
, "mono_arm_throw_exception_by_token")) {
2651 target
= mono_arm_throw_exception_by_token
;
2654 } else if (!strcmp (ji
->data
.name
, "mono_ppc_throw_exception")) {
2655 target
= mono_ppc_throw_exception
;
2657 } else if (strstr (ji
->data
.name
, "trampoline_func_") == ji
->data
.name
) {
2658 int tramp_type2
= atoi (ji
->data
.name
+ strlen ("trampoline_func_"));
2659 target
= (gpointer
)mono_get_trampoline_func (tramp_type2
);
2660 } else if (strstr (ji
->data
.name
, "specific_trampoline_lazy_fetch_") == ji
->data
.name
) {
2661 /* atoll is needed because the the offset is unsigned */
2665 res
= sscanf (ji
->data
.name
, "specific_trampoline_lazy_fetch_%u", &slot
);
2666 g_assert (res
== 1);
2667 target
= mono_create_specific_trampoline (GUINT_TO_POINTER (slot
), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH
, mono_get_root_domain (), NULL
);
2668 target
= mono_create_ftnptr_malloc (target
);
2669 } else if (!strcmp (ji
->data
.name
, "specific_trampoline_monitor_enter")) {
2670 target
= mono_create_specific_trampoline (NULL
, MONO_TRAMPOLINE_MONITOR_ENTER
, mono_get_root_domain (), NULL
);
2671 target
= mono_create_ftnptr_malloc (target
);
2672 } else if (!strcmp (ji
->data
.name
, "specific_trampoline_monitor_exit")) {
2673 target
= mono_create_specific_trampoline (NULL
, MONO_TRAMPOLINE_MONITOR_EXIT
, mono_get_root_domain (), NULL
);
2674 target
= mono_create_ftnptr_malloc (target
);
2675 } else if (!strcmp (ji
->data
.name
, "specific_trampoline_generic_class_init")) {
2676 target
= mono_create_specific_trampoline (NULL
, MONO_TRAMPOLINE_GENERIC_CLASS_INIT
, mono_get_root_domain (), NULL
);
2677 target
= mono_create_ftnptr_malloc (target
);
2678 } else if (!strcmp (ji
->data
.name
, "mono_thread_get_and_clear_pending_exception")) {
2679 target
= mono_thread_get_and_clear_pending_exception
;
2681 fprintf (stderr
, "Unknown relocation '%s'\n", ji
->data
.name
);
2682 g_assert_not_reached ();
2686 /* Hopefully the code doesn't have patches which need method or
2689 target
= mono_resolve_patch_target (NULL
, NULL
, code
, ji
, FALSE
);
2693 amodule
->got
[got_slots
[pindex
]] = target
;
2698 mono_mempool_destroy (mp
);
2705 * Return the piece of code identified by NAME from the mscorlib AOT file.
2706 * On ppc64, this returns a function descriptor.
2709 mono_aot_get_named_code (const char *name
)
2712 MonoAotModule
*amodule
;
2714 image
= mono_defaults
.corlib
;
2717 amodule
= image
->aot_module
;
2720 return mono_create_ftnptr_malloc (load_function (amodule
, name
));
2723 /* Return a given kind of trampoline */
2725 get_numerous_trampoline (MonoAotTrampoline tramp_type
, int n_got_slots
, MonoAotModule
**out_amodule
, guint32
*got_offset
, guint32
*out_tramp_size
)
2727 MonoAotModule
*amodule
;
2728 int index
, tramp_size
;
2731 /* Currently, we keep all trampolines in the mscorlib AOT image */
2732 image
= mono_defaults
.corlib
;
2737 amodule
= image
->aot_module
;
2740 *out_amodule
= amodule
;
2742 if (amodule
->trampoline_index
[tramp_type
] == amodule
->info
.num_trampolines
[tramp_type
])
2743 g_error ("Ran out of trampolines of type %d in '%s' (%d)\n", tramp_type
, image
->name
, amodule
->info
.num_trampolines
[tramp_type
]);
2745 index
= amodule
->trampoline_index
[tramp_type
] ++;
2749 *got_offset
= amodule
->info
.trampoline_got_offset_base
[tramp_type
] + (index
* n_got_slots
);
2751 tramp_size
= amodule
->info
.trampoline_size
[tramp_type
];
2754 *out_tramp_size
= tramp_size
;
2756 return amodule
->trampolines
[tramp_type
] + (index
* tramp_size
);
2760 * Return a specific trampoline from the AOT file.
2763 mono_aot_create_specific_trampoline (MonoImage
*image
, gpointer arg1
, MonoTrampolineType tramp_type
, MonoDomain
*domain
, guint32
*code_len
)
2765 MonoAotModule
*amodule
;
2766 guint32 got_offset
, tramp_size
;
2767 guint8
*code
, *tramp
;
2768 static gpointer generic_trampolines
[MONO_TRAMPOLINE_NUM
];
2769 static gboolean inited
;
2770 static guint32 num_trampolines
;
2776 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT
| MONO_COUNTER_INT
, &num_trampolines
);
2785 if (!generic_trampolines
[tramp_type
]) {
2788 symbol
= g_strdup_printf ("generic_trampoline_%d", tramp_type
);
2789 generic_trampolines
[tramp_type
] = mono_aot_get_named_code (symbol
);
2793 tramp
= generic_trampolines
[tramp_type
];
2796 code
= get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC
, 2, &amodule
, &got_offset
, &tramp_size
);
2798 amodule
->got
[got_offset
] = tramp
;
2799 amodule
->got
[got_offset
+ 1] = arg1
;
2802 *code_len
= tramp_size
;
2808 mono_aot_get_static_rgctx_trampoline (gpointer ctx
, gpointer addr
)
2810 MonoAotModule
*amodule
;
2814 code
= get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX
, 2, &amodule
, &got_offset
, NULL
);
2816 amodule
->got
[got_offset
] = ctx
;
2817 amodule
->got
[got_offset
+ 1] = addr
;
2819 /* The caller expects an ftnptr */
2820 return mono_create_ftnptr (mono_domain_get (), code
);
2824 mono_aot_get_unbox_trampoline (MonoMethod
*method
)
2826 guint32 method_index
= mono_metadata_token_index (method
->token
) - 1;
2827 MonoAotModule
*amodule
;
2831 if (method
->is_inflated
&& !mono_method_is_generic_sharable_impl (method
, FALSE
)) {
2832 guint32 index
= find_extra_method (method
, &amodule
);
2833 g_assert (index
!= 0xffffff);
2835 symbol
= g_strdup_printf ("ut_e_%d", index
);
2837 amodule
= method
->klass
->image
->aot_module
;
2840 symbol
= g_strdup_printf ("ut_%d", method_index
);
2842 code
= load_function (amodule
, symbol
);
2845 /* The caller expects an ftnptr */
2846 return mono_create_ftnptr (mono_domain_get (), code
);
2850 mono_aot_get_lazy_fetch_trampoline (guint32 slot
)
2855 symbol
= g_strdup_printf ("rgctx_fetch_trampoline_%u", slot
);
2856 code
= load_function (mono_defaults
.corlib
->aot_module
, symbol
);
2862 mono_aot_get_imt_thunk (MonoVTable
*vtable
, MonoDomain
*domain
, MonoIMTCheckItem
**imt_entries
, int count
, gpointer fail_tramp
)
2868 MonoAotModule
*amodule
;
2870 code
= get_numerous_trampoline (MONO_AOT_TRAMP_IMT_THUNK
, 1, &amodule
, &got_offset
, NULL
);
2872 /* Save the entries into an array */
2873 buf
= mono_domain_alloc (domain
, (count
+ 1) * 2 * sizeof (gpointer
));
2874 for (i
= 0; i
< count
; ++i
) {
2875 MonoIMTCheckItem
*item
= imt_entries
[i
];
2877 g_assert (item
->key
);
2879 g_assert (!item
->has_target_code
);
2881 buf
[(i
* 2)] = item
->key
;
2882 buf
[(i
* 2) + 1] = &(vtable
->vtable
[item
->value
.vtable_slot
]);
2884 buf
[(count
* 2)] = NULL
;
2885 buf
[(count
* 2) + 1] = fail_tramp
;
2887 amodule
->got
[got_offset
] = buf
;
2896 mono_aot_init (void)
2901 mono_aot_get_method (MonoDomain
*domain
, MonoMethod
*method
)
2907 mono_aot_is_got_entry (guint8
*code
, guint8
*addr
)
2913 mono_aot_get_cached_class_info (MonoClass
*klass
, MonoCachedClassInfo
*res
)
2919 mono_aot_get_class_from_name (MonoImage
*image
, const char *name_space
, const char *name
, MonoClass
**klass
)
2925 mono_aot_find_jit_info (MonoDomain
*domain
, MonoImage
*image
, gpointer addr
)
2931 mono_aot_get_method_from_token (MonoDomain
*domain
, MonoImage
*image
, guint32 token
)
2937 mono_aot_get_plt_entry (guint8
*code
)
2943 mono_aot_plt_resolve (gpointer aot_module
, guint32 plt_info_offset
, guint8
*code
)
2949 mono_aot_get_method_from_vt_slot (MonoDomain
*domain
, MonoVTable
*vtable
, int slot
)
2955 mono_aot_get_plt_info_offset (gssize
*regs
, guint8
*code
)
2957 g_assert_not_reached ();
2963 mono_aot_create_specific_trampoline (MonoImage
*image
, gpointer arg1
, MonoTrampolineType tramp_type
, MonoDomain
*domain
, guint32
*code_len
)
2965 g_assert_not_reached ();
2970 mono_aot_get_static_rgctx_trampoline (gpointer ctx
, gpointer addr
)
2972 g_assert_not_reached ();
2977 mono_aot_get_named_code (const char *name
)
2979 g_assert_not_reached ();
2984 mono_aot_get_unbox_trampoline (MonoMethod
*method
)
2986 g_assert_not_reached ();
2991 mono_aot_get_lazy_fetch_trampoline (guint32 slot
)
2993 g_assert_not_reached ();
2998 mono_aot_get_imt_thunk (MonoVTable
*vtable
, MonoDomain
*domain
, MonoIMTCheckItem
**imt_entries
, int count
, gpointer fail_tramp
)
3000 g_assert_not_reached ();
3005 mono_aot_get_unwind_info (MonoJitInfo
*ji
, guint32
*unwind_info_len
)
3007 g_assert_not_reached ();