3 * mono Ahead of Time compiler
6 * Dietmar Maurer (dietmar@ximian.com)
7 * Zoltan Varga (vargaz@gmail.com)
9 * (C) 2002 Ximian, Inc.
10 * Copyright 2003-2011 Novell, Inc.
11 * Copyright 2011 Xamarin, Inc.
12 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
16 #include <sys/types.h>
22 #ifdef HAVE_SYS_MMAN_H
31 #ifdef HAVE_EXECINFO_H
38 #ifdef HAVE_SYS_WAIT_H
39 #include <sys/wait.h> /* for WIFEXITED, WEXITSTATUS */
42 #include <mono/metadata/abi-details.h>
43 #include <mono/metadata/tabledefs.h>
44 #include <mono/metadata/class.h>
45 #include <mono/metadata/object.h>
46 #include <mono/metadata/tokentype.h>
47 #include <mono/metadata/appdomain.h>
48 #include <mono/metadata/debug-helpers.h>
49 #include <mono/metadata/assembly.h>
50 #include <mono/metadata/assembly-internals.h>
51 #include <mono/metadata/metadata-internals.h>
52 #include <mono/metadata/exception-internals.h>
53 #include <mono/metadata/marshal.h>
54 #include <mono/metadata/gc-internals.h>
55 #include <mono/metadata/threads-types.h>
56 #include <mono/metadata/mono-endian.h>
57 #include <mono/utils/mono-logger-internals.h>
58 #include <mono/utils/mono-mmap.h>
59 #include <mono/utils/mono-compiler.h>
60 #include <mono/utils/mono-counters.h>
61 #include <mono/utils/mono-digest.h>
62 #include <mono/utils/mono-threads-coop.h>
65 #include "seq-points.h"
67 #include "debugger-agent.h"
68 #include "aot-compiler.h"
69 #include "aot-runtime.h"
70 #include "jit-icalls.h"
71 #include "mini-runtime.h"
76 #define ENABLE_AOT_CACHE
79 /* Number of got entries shared between the JIT and LLVM GOT */
80 #define N_COMMON_GOT_ENTRIES 10
82 #define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
89 #define GOT_INITIALIZING 1
90 #define GOT_INITIALIZED 2
92 typedef struct MonoAotModule
{
94 /* Pointer to the Global Offset Table */
98 GHashTable
*name_cache
;
99 GHashTable
*extra_methods
;
100 /* Maps methods to their code */
101 GHashTable
*method_to_code
;
102 /* Maps pointers into the method info to the methods themselves */
103 GHashTable
*method_ref_to_method
;
104 MonoAssemblyName
*image_names
;
106 MonoAssembly
*assembly
;
107 MonoImage
**image_table
;
108 guint32 image_table_len
;
109 gboolean out_of_date
;
114 guint8
*jit_code_start
;
115 guint8
*jit_code_end
;
116 guint8
*llvm_code_start
;
117 guint8
*llvm_code_end
;
121 gpointer weak_field_indexes
;
122 /* Maps method indexes to their code */
124 /* Sorted array of method addresses */
125 gpointer
*sorted_methods
;
126 /* Method indexes for each method in sorted_methods */
127 int *sorted_method_indexes
;
128 /* The length of the two tables above */
129 int sorted_methods_len
;
130 guint32
*method_info_offsets
;
131 guint32
*ex_info_offsets
;
132 guint32
*class_info_offsets
;
133 guint32
*got_info_offsets
;
134 guint32
*llvm_got_info_offsets
;
135 guint32
*methods_loaded
;
136 guint16
*class_name_table
;
137 guint32
*extra_method_table
;
138 guint32
*extra_method_info_offsets
;
139 guint32
*unbox_trampolines
;
140 guint32
*unbox_trampolines_end
;
141 guint32
*unbox_trampoline_addresses
;
144 /* Points to the mono EH data created by LLVM */
145 guint8
*mono_eh_frame
;
147 /* Points to the data tables if MONO_AOT_FILE_FLAG_SEPARATE_DATA is set */
148 gpointer tables
[MONO_AOT_TABLE_NUM
];
149 /* Points to the trampolines */
150 guint8
*trampolines
[MONO_AOT_TRAMP_NUM
];
151 /* The first unused trampoline of each kind */
152 guint32 trampoline_index
[MONO_AOT_TRAMP_NUM
];
154 gboolean use_page_trampolines
;
156 MonoAotFileInfo info
;
161 JitInfoMap
*async_jit_info_table
;
167 unsigned char *trampolines
;
168 unsigned char *trampolines_end
;
171 static GHashTable
*aot_modules
;
172 #define mono_aot_lock() mono_os_mutex_lock (&aot_mutex)
173 #define mono_aot_unlock() mono_os_mutex_unlock (&aot_mutex)
174 static mono_mutex_t aot_mutex
;
177 * Maps assembly names to the mono_aot_module_<NAME>_info symbols in the
178 * AOT modules registered by mono_aot_register_module ().
180 static GHashTable
*static_aot_modules
;
182 * Same as above, but tracks module that must be loaded before others are
183 * This allows us to have a "container" module which contains resources for
184 * other modules. Since it doesn't provide methods for a managed assembly,
185 * and it needs to be fully loaded by the time the other code needs it, it
186 * must be eagerly loaded before other modules.
188 static char *container_assm_name
= NULL
;
189 static MonoAotModule
*container_amodule
= NULL
;
192 * Maps MonoJitInfo* to the aot module they belong to, this can be different
193 * from ji->method->klass->image's aot module for generic instances.
195 static GHashTable
*ji_to_amodule
;
198 * Whenever to AOT compile loaded assemblies on demand and store them in
201 static gboolean enable_aot_cache
= FALSE
;
203 static gboolean mscorlib_aot_loaded
;
206 static gint32 mono_last_aot_method
= -1;
208 static gboolean make_unreadable
= FALSE
;
209 static guint32 name_table_accesses
= 0;
210 static guint32 n_pagefaults
= 0;
212 /* Used to speed-up find_aot_module () */
213 static gsize aot_code_low_addr
= (gssize
)-1;
214 static gsize aot_code_high_addr
= 0;
217 static gint32 async_jit_info_size
;
219 static GHashTable
*aot_jit_icall_hash
;
222 #define USE_PAGE_TRAMPOLINES (mono_defaults.corlib->aot_module->use_page_trampolines)
224 #define USE_PAGE_TRAMPOLINES 0
227 #define mono_aot_page_lock() mono_os_mutex_lock (&aot_page_mutex)
228 #define mono_aot_page_unlock() mono_os_mutex_unlock (&aot_page_mutex)
229 static mono_mutex_t aot_page_mutex
;
231 static MonoAotModule
*mscorlib_aot_module
;
233 /* Embedding API hooks to load the AOT data for AOT images compiled with MONO_AOT_FILE_FLAG_SEPARATE_DATA */
234 static MonoLoadAotDataFunc aot_data_load_func
;
235 static MonoFreeAotDataFunc aot_data_free_func
;
236 static gpointer aot_data_func_user_data
;
239 init_plt (MonoAotModule
*info
);
242 compute_llvm_code_range (MonoAotModule
*amodule
, guint8
**code_start
, guint8
**code_end
);
245 init_method (MonoAotModule
*amodule
, guint32 method_index
, MonoMethod
*method
, MonoClass
*init_class
, MonoGenericContext
*context
, MonoError
*error
);
248 decode_patches (MonoAotModule
*amodule
, MonoMemPool
*mp
, int n_patches
, gboolean llvm
, guint32
*got_offsets
);
251 amodule_lock (MonoAotModule
*amodule
)
253 mono_os_mutex_lock (&amodule
->mutex
);
257 amodule_unlock (MonoAotModule
*amodule
)
259 mono_os_mutex_unlock (&amodule
->mutex
);
265 * Load one of the images referenced by AMODULE. Returns NULL if the image is not
266 * found, and sets @error for what happened
269 load_image (MonoAotModule
*amodule
, int index
, MonoError
*error
)
271 MonoAssembly
*assembly
;
272 MonoImageOpenStatus status
;
274 g_assert (index
< amodule
->image_table_len
);
278 if (amodule
->image_table
[index
])
279 return amodule
->image_table
[index
];
280 mono_trace (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
, "AOT: module %s wants to load image %d: %s", amodule
->aot_name
, index
, amodule
->image_names
[index
].name
);
281 if (amodule
->out_of_date
) {
282 mono_error_set_bad_image_by_name (error
, amodule
->aot_name
, "Image out of date");
287 * LoadFile allows loading more than one assembly with the same name.
288 * That means that just calling mono_assembly_load is unlikely to find
289 * the correct assembly (it'll just return the first one loaded). But
290 * we shouldn't hardcode the full assembly filepath into the AOT image,
291 * so it's not obvious that we can call mono_assembly_open_predicate.
293 * In the JIT, an assembly opened with LoadFile is supposed to only
294 * refer to already-loaded assemblies (or to GAC & MONO_PATH)
295 * assemblies - so nothing new should be loading. And for the
296 * LoadFile'd assembly itself, we can check if the name and guid of the
297 * current AOT module matches the wanted name and guid and just return
298 * the AOT module's assembly.
300 if (mono_asmctx_get_kind (&amodule
->assembly
->context
) == MONO_ASMCTX_INDIVIDUAL
&&
301 !strcmp (amodule
->assembly
->image
->guid
, amodule
->image_guids
[index
]) &&
302 mono_assembly_names_equal (&amodule
->image_names
[index
], &amodule
->assembly
->aname
))
303 assembly
= amodule
->assembly
;
305 assembly
= mono_assembly_load (&amodule
->image_names
[index
], amodule
->assembly
->basedir
, &status
);
307 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT: module %s is unusable because dependency %s is not found.", amodule
->aot_name
, amodule
->image_names
[index
].name
);
308 mono_error_set_bad_image_by_name (error
, amodule
->aot_name
, "module is unusable because dependency %s is not found (error %d).\n", amodule
->image_names
[index
].name
, status
);
309 amodule
->out_of_date
= TRUE
;
313 if (strcmp (assembly
->image
->guid
, amodule
->image_guids
[index
])) {
314 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT: module %s is unusable (GUID of dependent assembly %s doesn't match (expected '%s', got '%s').", amodule
->aot_name
, amodule
->image_names
[index
].name
, amodule
->image_guids
[index
], assembly
->image
->guid
);
315 mono_error_set_bad_image_by_name (error
, amodule
->aot_name
, "module is unusable (GUID of dependent assembly %s doesn't match (expected '%s', got '%s').", amodule
->image_names
[index
].name
, amodule
->image_guids
[index
], assembly
->image
->guid
);
316 amodule
->out_of_date
= TRUE
;
320 amodule
->image_table
[index
] = assembly
->image
;
321 return assembly
->image
;
325 decode_value (guint8
*ptr
, guint8
**rptr
)
330 if ((b
& 0x80) == 0){
333 } else if ((b
& 0x40) == 0){
334 len
= ((b
& 0x3f) << 8 | ptr
[1]);
336 } else if (b
!= 0xff) {
337 len
= ((b
& 0x1f) << 24) |
344 len
= (ptr
[1] << 24) | (ptr
[2] << 16) | (ptr
[3] << 8) | ptr
[4];
350 //printf ("DECODE: %d.\n", len);
355 * mono_aot_get_offset:
357 * Decode an offset table emitted by emit_offset_table (), returning the INDEXth
361 mono_aot_get_offset (guint32
*table
, int index
)
363 int i
, group
, ngroups
, index_entry_size
;
364 int start_offset
, offset
, group_size
;
365 guint8
*data_start
, *p
;
366 guint32
*index32
= NULL
;
367 guint16
*index16
= NULL
;
369 /* noffsets = table [0]; */
370 group_size
= table
[1];
372 index_entry_size
= table
[3];
373 group
= index
/ group_size
;
375 if (index_entry_size
== 2) {
376 index16
= (guint16
*)&table
[4];
377 data_start
= (guint8
*)&index16
[ngroups
];
378 p
= data_start
+ index16
[group
];
380 index32
= (guint32
*)&table
[4];
381 data_start
= (guint8
*)&index32
[ngroups
];
382 p
= data_start
+ index32
[group
];
385 /* offset will contain the value of offsets [group * group_size] */
386 offset
= start_offset
= decode_value (p
, &p
);
387 for (i
= group
* group_size
+ 1; i
<= index
; ++i
) {
388 offset
+= decode_value (p
, &p
);
391 //printf ("Offset lookup: %d -> %d, start=%d, p=%d\n", index, offset, start_offset, table [3 + group]);
397 decode_resolve_method_ref (MonoAotModule
*module
, guint8
*buf
, guint8
**endbuf
, MonoError
*error
);
400 decode_klass_ref (MonoAotModule
*module
, guint8
*buf
, guint8
**endbuf
, MonoError
*error
);
403 decode_type (MonoAotModule
*module
, guint8
*buf
, guint8
**endbuf
, MonoError
*error
);
405 static MonoGenericInst
*
406 decode_generic_inst (MonoAotModule
*module
, guint8
*buf
, guint8
**endbuf
, MonoError
*error
)
409 MonoType
**type_argv
;
410 MonoGenericInst
*inst
;
414 type_argc
= decode_value (p
, &p
);
415 type_argv
= g_new0 (MonoType
*, type_argc
);
417 for (i
= 0; i
< type_argc
; ++i
) {
418 MonoClass
*pclass
= decode_klass_ref (module
, p
, &p
, error
);
423 type_argv
[i
] = m_class_get_byval_arg (pclass
);
426 inst
= mono_metadata_get_generic_inst (type_argc
, type_argv
);
435 decode_generic_context (MonoAotModule
*module
, MonoGenericContext
*ctx
, guint8
*buf
, guint8
**endbuf
, MonoError
*error
)
443 argc
= decode_value (p
, &p
);
446 ctx
->class_inst
= decode_generic_inst (module
, p
, &p
, error
);
447 if (!ctx
->class_inst
)
451 argc
= decode_value (p
, &p
);
454 ctx
->method_inst
= decode_generic_inst (module
, p
, &p
, error
);
455 if (!ctx
->method_inst
)
464 decode_klass_ref (MonoAotModule
*module
, guint8
*buf
, guint8
**endbuf
, MonoError
*error
)
467 MonoClass
*klass
= NULL
, *eklass
;
468 guint32 token
, rank
, idx
;
473 reftype
= decode_value (p
, &p
);
476 mono_error_set_bad_image_by_name (error
, module
->aot_name
, "Decoding a null class ref");
481 case MONO_AOT_TYPEREF_TYPEDEF_INDEX
:
482 idx
= decode_value (p
, &p
);
483 image
= load_image (module
, 0, error
);
486 klass
= mono_class_get_checked (image
, MONO_TOKEN_TYPE_DEF
+ idx
, error
);
488 case MONO_AOT_TYPEREF_TYPEDEF_INDEX_IMAGE
:
489 idx
= decode_value (p
, &p
);
490 image
= load_image (module
, decode_value (p
, &p
), error
);
493 klass
= mono_class_get_checked (image
, MONO_TOKEN_TYPE_DEF
+ idx
, error
);
495 case MONO_AOT_TYPEREF_TYPESPEC_TOKEN
:
496 token
= decode_value (p
, &p
);
497 image
= module
->assembly
->image
;
499 mono_error_set_bad_image_by_name (error
, module
->aot_name
, "No image associated with the aot module");
502 klass
= mono_class_get_checked (image
, token
, error
);
504 case MONO_AOT_TYPEREF_GINST
: {
506 MonoGenericContext ctx
;
509 gclass
= decode_klass_ref (module
, p
, &p
, error
);
512 g_assert (mono_class_is_gtd (gclass
));
514 memset (&ctx
, 0, sizeof (ctx
));
515 ctx
.class_inst
= decode_generic_inst (module
, p
, &p
, error
);
518 type
= mono_class_inflate_generic_type_checked (m_class_get_byval_arg (gclass
), &ctx
, error
);
521 klass
= mono_class_from_mono_type_internal (type
);
522 mono_metadata_free_type (type
);
525 case MONO_AOT_TYPEREF_VAR
: {
527 MonoGenericContainer
*container
= NULL
;
528 gboolean has_constraint
= decode_value (p
, &p
);
530 if (has_constraint
) {
531 MonoClass
*par_klass
;
532 MonoType
*gshared_constraint
;
534 gshared_constraint
= decode_type (module
, p
, &p
, error
);
535 if (!gshared_constraint
)
538 par_klass
= decode_klass_ref (module
, p
, &p
, error
);
542 t
= mini_get_shared_gparam (m_class_get_byval_arg (par_klass
), gshared_constraint
);
543 mono_metadata_free_type (gshared_constraint
);
544 klass
= mono_class_from_mono_type_internal (t
);
546 int type
= decode_value (p
, &p
);
547 int num
= decode_value (p
, &p
);
548 gboolean is_not_anonymous
= decode_value (p
, &p
);
550 if (is_not_anonymous
) {
551 gboolean is_method
= decode_value (p
, &p
);
554 MonoMethod
*method_def
;
555 g_assert (type
== MONO_TYPE_MVAR
);
556 method_def
= decode_resolve_method_ref (module
, p
, &p
, error
);
560 container
= mono_method_get_generic_container (method_def
);
562 MonoClass
*class_def
;
563 g_assert (type
== MONO_TYPE_VAR
);
564 class_def
= decode_klass_ref (module
, p
, &p
, error
);
568 container
= mono_class_try_get_generic_container (class_def
); //FIXME is this a case for a try_get?
571 // We didn't decode is_method, so we have to infer it from type enum.
572 container
= mono_get_anonymous_container_for_image (module
->assembly
->image
, type
== MONO_TYPE_MVAR
);
575 t
= g_new0 (MonoType
, 1);
576 t
->type
= (MonoTypeEnum
)type
;
577 if (is_not_anonymous
) {
578 t
->data
.generic_param
= mono_generic_container_get_param (container
, num
);
581 MonoGenericParam
*par
= mono_metadata_create_anon_gparam (module
->assembly
->image
, num
, type
== MONO_TYPE_MVAR
);
582 t
->data
.generic_param
= par
;
583 // FIXME: maybe do this for all anon gparams?
584 ((MonoGenericParamFull
*)par
)->info
.name
= mono_make_generic_name_string (module
->assembly
->image
, num
);
586 // FIXME: Maybe use types directly to avoid
587 // the overhead of creating MonoClass-es
588 klass
= mono_class_from_mono_type_internal (t
);
594 case MONO_AOT_TYPEREF_ARRAY
:
596 rank
= decode_value (p
, &p
);
597 eklass
= decode_klass_ref (module
, p
, &p
, error
);
600 klass
= mono_class_create_array (eklass
, rank
);
602 case MONO_AOT_TYPEREF_PTR
: {
605 t
= decode_type (module
, p
, &p
, error
);
608 klass
= mono_class_from_mono_type_internal (t
);
612 case MONO_AOT_TYPEREF_BLOB_INDEX
: {
613 guint32 offset
= decode_value (p
, &p
);
616 p2
= module
->blob
+ offset
;
617 klass
= decode_klass_ref (module
, p2
, &p2
, error
);
621 mono_error_set_bad_image_by_name (error
, module
->aot_name
, "Invalid klass reftype %d", reftype
);
624 //printf ("BLA: %s\n", mono_type_full_name (m_class_get_byval_arg (klass)));
629 static MonoClassField
*
630 decode_field_info (MonoAotModule
*module
, guint8
*buf
, guint8
**endbuf
)
633 MonoClass
*klass
= decode_klass_ref (module
, buf
, &buf
, error
);
638 mono_error_cleanup (error
); /* FIXME don't swallow the error */
642 token
= MONO_TOKEN_FIELD_DEF
+ decode_value (p
, &p
);
646 return mono_class_get_field (klass
, token
);
650 * Parse a MonoType encoded by encode_type () in aot-compiler.c. Return malloc-ed
654 decode_type (MonoAotModule
*module
, guint8
*buf
, guint8
**endbuf
, MonoError
*error
)
659 if (*p
== MONO_TYPE_CMOD_REQD
) {
662 int count
= decode_value (p
, &p
);
664 t
= (MonoType
*)g_malloc0 (mono_sizeof_type_with_mods (count
));
667 MonoCustomModContainer
*cm
= mono_type_get_cmods (t
);
668 int iindex
= decode_value (p
, &p
);
669 cm
->image
= load_image (module
, iindex
, error
);
675 for (int i
= 0; i
< cm
->count
; ++i
) {
676 cm
->modifiers
[i
].required
= decode_value (p
, &p
);
677 cm
->modifiers
[i
].token
= decode_value (p
, &p
);
680 t
= (MonoType
*) g_malloc0 (sizeof (MonoType
));
684 if (*p
== MONO_TYPE_PINNED
) {
687 } else if (*p
== MONO_TYPE_BYREF
) {
695 t
->type
= (MonoTypeEnum
)*p
;
700 case MONO_TYPE_BOOLEAN
:
714 case MONO_TYPE_STRING
:
715 case MONO_TYPE_OBJECT
:
716 case MONO_TYPE_TYPEDBYREF
:
718 case MONO_TYPE_VALUETYPE
:
719 case MONO_TYPE_CLASS
:
720 t
->data
.klass
= decode_klass_ref (module
, p
, &p
, error
);
724 case MONO_TYPE_SZARRAY
:
725 t
->data
.klass
= decode_klass_ref (module
, p
, &p
, error
);
731 t
->data
.type
= decode_type (module
, p
, &p
, error
);
735 case MONO_TYPE_GENERICINST
: {
737 MonoGenericContext ctx
;
741 gclass
= decode_klass_ref (module
, p
, &p
, error
);
744 g_assert (mono_class_is_gtd (gclass
));
746 memset (&ctx
, 0, sizeof (ctx
));
747 ctx
.class_inst
= decode_generic_inst (module
, p
, &p
, error
);
750 type
= mono_class_inflate_generic_type_checked (m_class_get_byval_arg (gclass
), &ctx
, error
);
753 klass
= mono_class_from_mono_type_internal (type
);
754 t
->data
.generic_class
= mono_class_get_generic_class (klass
);
757 case MONO_TYPE_ARRAY
: {
758 MonoArrayType
*array
;
761 // FIXME: memory management
762 array
= g_new0 (MonoArrayType
, 1);
763 array
->eklass
= decode_klass_ref (module
, p
, &p
, error
);
766 array
->rank
= decode_value (p
, &p
);
767 array
->numsizes
= decode_value (p
, &p
);
770 array
->sizes
= (int *)g_malloc0 (sizeof (int) * array
->numsizes
);
771 for (i
= 0; i
< array
->numsizes
; ++i
)
772 array
->sizes
[i
] = decode_value (p
, &p
);
774 array
->numlobounds
= decode_value (p
, &p
);
775 if (array
->numlobounds
)
776 array
->lobounds
= (int *)g_malloc0 (sizeof (int) * array
->numlobounds
);
777 for (i
= 0; i
< array
->numlobounds
; ++i
)
778 array
->lobounds
[i
] = decode_value (p
, &p
);
779 t
->data
.array
= array
;
783 case MONO_TYPE_MVAR
: {
784 MonoClass
*klass
= decode_klass_ref (module
, p
, &p
, error
);
787 t
->data
.generic_param
= m_class_get_byval_arg (klass
)->data
.generic_param
;
791 mono_error_set_bad_image_by_name (error
, module
->aot_name
, "Invalid encoded type %d", t
->type
);
803 // FIXME: Error handling, memory management
805 static MonoMethodSignature
*
806 decode_signature_with_target (MonoAotModule
*module
, MonoMethodSignature
*target
, guint8
*buf
, guint8
**endbuf
)
809 MonoMethodSignature
*sig
;
811 int i
, gen_param_count
= 0, param_count
, call_conv
;
813 gboolean hasthis
, explicit_this
, has_gen_params
;
817 has_gen_params
= (flags
& 0x10) != 0;
818 hasthis
= (flags
& 0x20) != 0;
819 explicit_this
= (flags
& 0x40) != 0;
820 call_conv
= flags
& 0x0F;
823 gen_param_count
= decode_value (p
, &p
);
824 param_count
= decode_value (p
, &p
);
825 if (target
&& param_count
!= target
->param_count
)
827 sig
= (MonoMethodSignature
*)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE
+ param_count
* sizeof (MonoType
*));
828 sig
->param_count
= param_count
;
829 sig
->sentinelpos
= -1;
830 sig
->hasthis
= hasthis
;
831 sig
->explicit_this
= explicit_this
;
832 sig
->call_convention
= call_conv
;
833 sig
->generic_param_count
= gen_param_count
;
834 sig
->ret
= decode_type (module
, p
, &p
, error
);
837 for (i
= 0; i
< param_count
; ++i
) {
838 if (*p
== MONO_TYPE_SENTINEL
) {
839 g_assert (sig
->call_convention
== MONO_CALL_VARARG
);
840 sig
->sentinelpos
= i
;
843 sig
->params
[i
] = decode_type (module
, p
, &p
, error
);
844 if (!sig
->params
[i
])
848 if (sig
->call_convention
== MONO_CALL_VARARG
&& sig
->sentinelpos
== -1)
849 sig
->sentinelpos
= sig
->param_count
;
855 mono_error_cleanup (error
); /* FIXME don't swallow the error */
860 static MonoMethodSignature
*
861 decode_signature (MonoAotModule
*module
, guint8
*buf
, guint8
**endbuf
)
863 return decode_signature_with_target (module
, NULL
, buf
, endbuf
);
867 sig_matches_target (MonoAotModule
*module
, MonoMethod
*target
, guint8
*buf
, guint8
**endbuf
)
869 MonoMethodSignature
*sig
;
873 sig
= decode_signature_with_target (module
, mono_method_signature_internal (target
), p
, &p
);
874 res
= sig
&& mono_metadata_signature_equal (mono_method_signature_internal (target
), sig
);
880 /* Stores information returned by decode_method_ref () */
885 gboolean no_aot_trampoline
;
889 * decode_method_ref_with_target:
891 * Decode a method reference, storing the image/token into a MethodRef structure.
892 * This avoids loading metadata for the method if the caller does not need it. If the method has
893 * no token, then it is loaded from metadata and ref->method is set to the method instance.
894 * If TARGET is non-NULL, abort decoding if it can be determined that the decoded method
895 * couldn't resolve to TARGET, and return FALSE.
896 * There are some kinds of method references which only support a non-null TARGET.
897 * This means that its not possible to decode this into a method, only to check
898 * that the method reference matches a given method. This is normally not a problem
899 * as these wrappers only occur in the extra_methods table, where we already have
900 * a method we want to lookup.
902 * If there was a decoding error, we return FALSE and set @error
905 decode_method_ref_with_target (MonoAotModule
*module
, MethodRef
*ref
, MonoMethod
*target
, guint8
*buf
, guint8
**endbuf
, MonoError
*error
)
907 guint32 image_index
, value
;
908 MonoImage
*image
= NULL
;
911 memset (ref
, 0, sizeof (MethodRef
));
914 value
= decode_value (p
, &p
);
915 image_index
= value
>> 24;
917 if (image_index
== MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE
) {
918 ref
->no_aot_trampoline
= TRUE
;
919 value
= decode_value (p
, &p
);
920 image_index
= value
>> 24;
923 if (image_index
< MONO_AOT_METHODREF_MIN
|| image_index
== MONO_AOT_METHODREF_METHODSPEC
|| image_index
== MONO_AOT_METHODREF_GINST
) {
924 if (target
&& target
->wrapper_type
) {
929 if (image_index
== MONO_AOT_METHODREF_WRAPPER
) {
931 guint32 wrapper_type
;
933 wrapper_type
= decode_value (p
, &p
);
935 if (target
&& target
->wrapper_type
!= wrapper_type
)
939 image
= mono_defaults
.corlib
;
941 switch (wrapper_type
) {
942 #ifndef DISABLE_REMOTING
943 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK
: {
944 MonoMethod
*m
= decode_resolve_method_ref (module
, p
, &p
, error
);
947 mono_class_init (m
->klass
);
951 ref
->method
= mono_marshal_get_remoting_invoke_with_check (m
, error
);
952 return_val_if_nok (error
, FALSE
);
956 case MONO_WRAPPER_PROXY_ISINST
: {
957 MonoClass
*klass
= decode_klass_ref (module
, p
, &p
, error
);
960 ref
->method
= mono_marshal_get_proxy_cancast (klass
);
963 case MONO_WRAPPER_LDFLD
:
964 case MONO_WRAPPER_LDFLDA
:
965 case MONO_WRAPPER_STFLD
: {
966 MonoClass
*klass
= decode_klass_ref (module
, p
, &p
, error
);
969 MonoType
*type
= m_class_get_byval_arg (klass
);
970 if (wrapper_type
== MONO_WRAPPER_LDFLD
)
971 ref
->method
= mono_marshal_get_ldfld_wrapper (type
);
972 else if (wrapper_type
== MONO_WRAPPER_LDFLDA
)
973 ref
->method
= mono_marshal_get_ldflda_wrapper (type
);
974 else if (wrapper_type
== MONO_WRAPPER_STFLD
)
975 ref
->method
= mono_marshal_get_stfld_wrapper (type
);
977 mono_error_set_bad_image_by_name (error
, module
->aot_name
, "Unknown AOT wrapper type %d", wrapper_type
);
983 case MONO_WRAPPER_ALLOC
: {
984 int atype
= decode_value (p
, &p
);
985 ManagedAllocatorVariant variant
=
986 mono_profiler_allocations_enabled () ?
987 MANAGED_ALLOCATOR_PROFILER
: MANAGED_ALLOCATOR_REGULAR
;
989 ref
->method
= mono_gc_get_managed_allocator_by_type (atype
, variant
);
990 /* Try to fallback to the slow path version */
992 ref
->method
= mono_gc_get_managed_allocator_by_type (atype
, MANAGED_ALLOCATOR_SLOW_PATH
);
994 mono_error_set_bad_image_by_name (error
, module
->aot_name
, "Error: No managed allocator, but we need one for AOT.\nAre you using non-standard GC options?\n");
999 case MONO_WRAPPER_WRITE_BARRIER
: {
1000 ref
->method
= mono_gc_get_write_barrier ();
1003 case MONO_WRAPPER_STELEMREF
: {
1004 int subtype
= decode_value (p
, &p
);
1006 if (subtype
== WRAPPER_SUBTYPE_NONE
) {
1007 ref
->method
= mono_marshal_get_stelemref ();
1008 } else if (subtype
== WRAPPER_SUBTYPE_VIRTUAL_STELEMREF
) {
1011 kind
= decode_value (p
, &p
);
1013 /* Can't decode this */
1016 if (target
->wrapper_type
== MONO_WRAPPER_STELEMREF
) {
1017 info
= mono_marshal_get_wrapper_info (target
);
1020 if (info
->subtype
== subtype
&& info
->d
.virtual_stelemref
.kind
== kind
)
1021 ref
->method
= target
;
1028 mono_error_set_bad_image_by_name (error
, module
->aot_name
, "Invalid STELEMREF subtype %d", subtype
);
1033 case MONO_WRAPPER_SYNCHRONIZED
: {
1034 MonoMethod
*m
= decode_resolve_method_ref (module
, p
, &p
, error
);
1037 ref
->method
= mono_marshal_get_synchronized_wrapper (m
);
1040 case MONO_WRAPPER_UNKNOWN
: {
1041 int subtype
= decode_value (p
, &p
);
1043 if (subtype
== WRAPPER_SUBTYPE_PTR_TO_STRUCTURE
|| subtype
== WRAPPER_SUBTYPE_STRUCTURE_TO_PTR
) {
1044 MonoClass
*klass
= decode_klass_ref (module
, p
, &p
, error
);
1050 if (klass
!= target
->klass
)
1053 if (subtype
== WRAPPER_SUBTYPE_PTR_TO_STRUCTURE
) {
1054 if (strcmp (target
->name
, "PtrToStructure"))
1056 ref
->method
= mono_marshal_get_ptr_to_struct (klass
);
1058 if (strcmp (target
->name
, "StructureToPtr"))
1060 ref
->method
= mono_marshal_get_struct_to_ptr (klass
);
1062 } else if (subtype
== WRAPPER_SUBTYPE_SYNCHRONIZED_INNER
) {
1063 MonoMethod
*m
= decode_resolve_method_ref (module
, p
, &p
, error
);
1066 ref
->method
= mono_marshal_get_synchronized_inner_wrapper (m
);
1067 } else if (subtype
== WRAPPER_SUBTYPE_ARRAY_ACCESSOR
) {
1068 MonoMethod
*m
= decode_resolve_method_ref (module
, p
, &p
, error
);
1071 ref
->method
= mono_marshal_get_array_accessor_wrapper (m
);
1072 } else if (subtype
== WRAPPER_SUBTYPE_GSHAREDVT_IN
) {
1073 ref
->method
= mono_marshal_get_gsharedvt_in_wrapper ();
1074 } else if (subtype
== WRAPPER_SUBTYPE_GSHAREDVT_OUT
) {
1075 ref
->method
= mono_marshal_get_gsharedvt_out_wrapper ();
1076 } else if (subtype
== WRAPPER_SUBTYPE_INTERP_IN
) {
1077 MonoMethodSignature
*sig
= decode_signature (module
, p
, &p
);
1080 ref
->method
= mini_get_interp_in_wrapper (sig
);
1081 } else if (subtype
== WRAPPER_SUBTYPE_INTERP_LMF
) {
1082 ref
->method
= mini_get_interp_lmf_wrapper ();
1083 } else if (subtype
== WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG
) {
1084 MonoMethodSignature
*sig
= decode_signature (module
, p
, &p
);
1087 ref
->method
= mini_get_gsharedvt_in_sig_wrapper (sig
);
1088 } else if (subtype
== WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG
) {
1089 MonoMethodSignature
*sig
= decode_signature (module
, p
, &p
);
1092 ref
->method
= mini_get_gsharedvt_out_sig_wrapper (sig
);
1094 mono_error_set_bad_image_by_name (error
, module
->aot_name
, "Invalid UNKNOWN wrapper subtype %d", subtype
);
1099 case MONO_WRAPPER_MANAGED_TO_MANAGED
: {
1100 int subtype
= decode_value (p
, &p
);
1102 if (subtype
== WRAPPER_SUBTYPE_ELEMENT_ADDR
) {
1103 int rank
= decode_value (p
, &p
);
1104 int elem_size
= decode_value (p
, &p
);
1106 ref
->method
= mono_marshal_get_array_address (rank
, elem_size
);
1107 } else if (subtype
== WRAPPER_SUBTYPE_STRING_CTOR
) {
1110 m
= decode_resolve_method_ref (module
, p
, &p
, error
);
1116 g_assert (target
->wrapper_type
== MONO_WRAPPER_MANAGED_TO_MANAGED
);
1118 info
= mono_marshal_get_wrapper_info (target
);
1119 if (info
&& info
->subtype
== subtype
&& info
->d
.string_ctor
.method
== m
)
1120 ref
->method
= target
;
1126 case MONO_WRAPPER_MANAGED_TO_NATIVE
: {
1128 int subtype
= decode_value (p
, &p
);
1131 if (subtype
== WRAPPER_SUBTYPE_ICALL_WRAPPER
) {
1134 MonoJitICallInfo
*info
= mono_find_jit_icall_by_name (name
);
1136 ref
->method
= mono_icall_get_wrapper_method (info
);
1138 m
= decode_resolve_method_ref (module
, p
, &p
, error
);
1142 /* This should only happen when looking for an extra method */
1145 if (mono_marshal_method_from_wrapper (target
) == m
)
1146 ref
->method
= target
;
1152 case MONO_WRAPPER_CASTCLASS
: {
1153 int subtype
= decode_value (p
, &p
);
1155 if (subtype
== WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE
)
1156 ref
->method
= mono_marshal_get_castclass_with_cache ();
1157 else if (subtype
== WRAPPER_SUBTYPE_ISINST_WITH_CACHE
)
1158 ref
->method
= mono_marshal_get_isinst_with_cache ();
1160 mono_error_set_bad_image_by_name (error
, module
->aot_name
, "Invalid CASTCLASS wrapper subtype %d", subtype
);
1165 case MONO_WRAPPER_RUNTIME_INVOKE
: {
1166 int subtype
= decode_value (p
, &p
);
1171 if (subtype
== WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC
) {
1172 if (strcmp (target
->name
, "runtime_invoke_dynamic") != 0)
1174 ref
->method
= target
;
1175 } else if (subtype
== WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT
) {
1176 /* Direct wrapper */
1177 MonoMethod
*m
= decode_resolve_method_ref (module
, p
, &p
, error
);
1180 ref
->method
= mono_marshal_get_runtime_invoke (m
, FALSE
);
1181 } else if (subtype
== WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL
) {
1182 /* Virtual direct wrapper */
1183 MonoMethod
*m
= decode_resolve_method_ref (module
, p
, &p
, error
);
1186 ref
->method
= mono_marshal_get_runtime_invoke (m
, TRUE
);
1188 MonoMethodSignature
*sig
;
1190 sig
= decode_signature_with_target (module
, NULL
, p
, &p
);
1191 info
= mono_marshal_get_wrapper_info (target
);
1194 if (info
->subtype
!= subtype
)
1196 g_assert (info
->d
.runtime_invoke
.sig
);
1197 if (mono_metadata_signature_equal (sig
, info
->d
.runtime_invoke
.sig
))
1198 ref
->method
= target
;
1204 case MONO_WRAPPER_DELEGATE_INVOKE
:
1205 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE
:
1206 case MONO_WRAPPER_DELEGATE_END_INVOKE
: {
1207 gboolean is_inflated
= decode_value (p
, &p
);
1208 WrapperSubtype subtype
;
1212 MonoMethod
*invoke
, *wrapper
;
1214 klass
= decode_klass_ref (module
, p
, &p
, error
);
1218 switch (wrapper_type
) {
1219 case MONO_WRAPPER_DELEGATE_INVOKE
:
1220 invoke
= mono_get_delegate_invoke_internal (klass
);
1221 wrapper
= mono_marshal_get_delegate_invoke (invoke
, NULL
);
1223 case MONO_WRAPPER_DELEGATE_BEGIN_INVOKE
:
1224 invoke
= mono_get_delegate_begin_invoke_internal (klass
);
1225 wrapper
= mono_marshal_get_delegate_begin_invoke (invoke
);
1227 case MONO_WRAPPER_DELEGATE_END_INVOKE
:
1228 invoke
= mono_get_delegate_end_invoke_internal (klass
);
1229 wrapper
= mono_marshal_get_delegate_end_invoke (invoke
);
1232 g_assert_not_reached ();
1237 * Due to the way mini_get_shared_method_full () works, we could end up with
1238 * multiple copies of the same wrapper.
1240 if (wrapper
->klass
!= target
->klass
)
1242 ref
->method
= target
;
1244 ref
->method
= wrapper
;
1248 * These wrappers are associated with a signature, not with a method.
1249 * Since we can't decode them into methods, they need a target method.
1254 if (wrapper_type
== MONO_WRAPPER_DELEGATE_INVOKE
) {
1255 subtype
= (WrapperSubtype
)decode_value (p
, &p
);
1256 info
= mono_marshal_get_wrapper_info (target
);
1258 if (info
->subtype
!= subtype
)
1261 if (subtype
!= WRAPPER_SUBTYPE_NONE
)
1265 if (sig_matches_target (module
, target
, p
, &p
))
1266 ref
->method
= target
;
1272 case MONO_WRAPPER_NATIVE_TO_MANAGED
: {
1276 m
= decode_resolve_method_ref (module
, p
, &p
, error
);
1279 klass
= decode_klass_ref (module
, p
, &p
, error
);
1282 ref
->method
= mono_marshal_get_managed_wrapper (m
, klass
, 0, error
);
1283 if (!mono_error_ok (error
))
1288 g_assert_not_reached ();
1290 } else if (image_index
== MONO_AOT_METHODREF_METHODSPEC
) {
1291 image_index
= decode_value (p
, &p
);
1292 ref
->token
= decode_value (p
, &p
);
1294 image
= load_image (module
, image_index
, error
);
1297 } else if (image_index
== MONO_AOT_METHODREF_GINST
) {
1299 MonoGenericContext ctx
;
1302 * These methods do not have a token which resolves them, so we
1303 * resolve them immediately.
1305 klass
= decode_klass_ref (module
, p
, &p
, error
);
1309 if (target
&& target
->klass
!= klass
)
1312 image_index
= decode_value (p
, &p
);
1313 ref
->token
= decode_value (p
, &p
);
1315 image
= load_image (module
, image_index
, error
);
1319 ref
->method
= mono_get_method_checked (image
, ref
->token
, NULL
, NULL
, error
);
1324 memset (&ctx
, 0, sizeof (ctx
));
1326 if (FALSE
&& mono_class_is_ginst (klass
)) {
1327 ctx
.class_inst
= mono_class_get_generic_class (klass
)->context
.class_inst
;
1328 ctx
.method_inst
= NULL
;
1330 ref
->method
= mono_class_inflate_generic_method_full_checked (ref
->method
, klass
, &ctx
, error
);
1335 memset (&ctx
, 0, sizeof (ctx
));
1337 if (!decode_generic_context (module
, &ctx
, p
, &p
, error
))
1340 ref
->method
= mono_class_inflate_generic_method_full_checked (ref
->method
, klass
, &ctx
, error
);
1344 } else if (image_index
== MONO_AOT_METHODREF_ARRAY
) {
1348 klass
= decode_klass_ref (module
, p
, &p
, error
);
1351 method_type
= decode_value (p
, &p
);
1352 switch (method_type
) {
1354 ref
->method
= mono_class_get_method_from_name_checked (klass
, ".ctor", m_class_get_rank (klass
), 0, error
);
1355 return_val_if_nok (error
, FALSE
);
1358 ref
->method
= mono_class_get_method_from_name_checked (klass
, ".ctor", m_class_get_rank (klass
) * 2, 0, error
);
1359 return_val_if_nok (error
, FALSE
);
1362 ref
->method
= mono_class_get_method_from_name_checked (klass
, "Get", -1, 0, error
);
1363 return_val_if_nok (error
, FALSE
);
1366 ref
->method
= mono_class_get_method_from_name_checked (klass
, "Address", -1, 0, error
);
1367 return_val_if_nok (error
, FALSE
);
1370 ref
->method
= mono_class_get_method_from_name_checked (klass
, "Set", -1, 0, error
);
1371 return_val_if_nok (error
, FALSE
);
1374 mono_error_set_bad_image_by_name (error
, module
->aot_name
, "Invalid METHODREF_ARRAY method type %d", method_type
);
1378 if (image_index
== MONO_AOT_METHODREF_LARGE_IMAGE_INDEX
) {
1379 image_index
= decode_value (p
, &p
);
1380 value
= decode_value (p
, &p
);
1383 ref
->token
= MONO_TOKEN_METHOD_DEF
| (value
& 0xffffff);
1385 image
= load_image (module
, image_index
, error
);
1398 decode_method_ref (MonoAotModule
*module
, MethodRef
*ref
, guint8
*buf
, guint8
**endbuf
, MonoError
*error
)
1400 return decode_method_ref_with_target (module
, ref
, NULL
, buf
, endbuf
, error
);
1404 * decode_resolve_method_ref_with_target:
1406 * Similar to decode_method_ref, but resolve and return the method itself.
1409 decode_resolve_method_ref_with_target (MonoAotModule
*module
, MonoMethod
*target
, guint8
*buf
, guint8
**endbuf
, MonoError
*error
)
1415 if (!decode_method_ref_with_target (module
, &ref
, target
, buf
, endbuf
, error
))
1420 mono_error_set_bad_image_by_name (error
, module
->aot_name
, "No image found for methodref with target");
1423 return mono_get_method_checked (ref
.image
, ref
.token
, NULL
, NULL
, error
);
1427 decode_resolve_method_ref (MonoAotModule
*module
, guint8
*buf
, guint8
**endbuf
, MonoError
*error
)
1429 return decode_resolve_method_ref_with_target (module
, NULL
, buf
, endbuf
, error
);
1432 #ifdef ENABLE_AOT_CACHE
1438 * - Add options for controlling the cache size
1439 * - Handle full cache by deleting old assemblies lru style
1440 * - Maybe add a threshold after an assembly is AOT compiled
1441 * - Add options for enabling this for specific main assemblies
1444 /* The cache directory */
1445 static char *cache_dir
;
1447 /* The number of assemblies AOTed in this run */
1448 static int cache_count
;
1450 /* Whenever to AOT in-process */
1451 static gboolean in_process
;
1454 collect_assemblies (gpointer data
, gpointer user_data
)
1456 MonoAssembly
*ass
= (MonoAssembly
*)data
;
1457 GSList
**l
= (GSList
**)user_data
;
1459 *l
= g_slist_prepend (*l
, ass
);
1462 #define SHA1_DIGEST_LENGTH 20
1465 * get_aot_config_hash:
1467 * Return a hash for all the version information an AOT module depends on.
1469 static G_GNUC_UNUSED
char*
1470 get_aot_config_hash (MonoAssembly
*assembly
)
1473 GSList
*l
, *assembly_list
= NULL
;
1476 guint8 digest
[SHA1_DIGEST_LENGTH
];
1479 build_info
= mono_get_runtime_build_info ();
1481 s
= g_string_new (build_info
);
1483 mono_assembly_foreach (collect_assemblies
, &assembly_list
);
1486 * The assembly list includes the current assembly as well, no need
1489 for (l
= assembly_list
; l
; l
= l
->next
) {
1490 MonoAssembly
*ass
= (MonoAssembly
*)l
->data
;
1492 g_string_append (s
, "_");
1493 g_string_append (s
, ass
->aname
.name
);
1494 g_string_append (s
, "_");
1495 g_string_append (s
, ass
->image
->guid
);
1498 for (i
= 0; i
< s
->len
; ++i
) {
1499 if (!isalnum (s
->str
[i
]) && s
->str
[i
] != '-')
1503 mono_sha1_get_digest ((guint8
*)s
->str
, s
->len
, digest
);
1505 digest_str
= g_malloc0 ((SHA1_DIGEST_LENGTH
* 2) + 1);
1506 for (i
= 0; i
< SHA1_DIGEST_LENGTH
; ++i
)
1507 sprintf (digest_str
+ (i
* 2), "%02x", digest
[i
]);
1509 mono_trace (G_LOG_LEVEL_MESSAGE
, MONO_TRACE_AOT
, "AOT: file dependencies: %s, hash %s", s
->str
, digest_str
);
1511 g_string_free (s
, TRUE
);
1517 aot_cache_init (void)
1521 enable_aot_cache
= TRUE
;
1526 * aot_cache_load_module:
1528 * Load the AOT image corresponding to ASSEMBLY from the aot cache, AOTing it if neccessary.
1531 aot_cache_load_module (MonoAssembly
*assembly
, char **aot_name
)
1533 MonoAotCacheConfig
*config
;
1535 char *fname
, *tmp2
, *aot_options
, *failure_fname
;
1547 if (image_is_dynamic (assembly
->image
))
1550 /* Check in the list of assemblies enabled for aot caching */
1551 config
= mono_get_aot_cache_config ();
1555 MonoDomain
*domain
= mono_domain_get ();
1556 MonoAssembly
*entry_assembly
= domain
->entry_assembly
;
1558 // FIXME: This cannot be used for mscorlib during startup, since entry_assembly is not set yet
1559 for (l
= config
->apps
; l
; l
= l
->next
) {
1560 char *n
= (char*)l
->data
;
1562 if ((entry_assembly
&& !strcmp (entry_assembly
->aname
.name
, n
)) || (!entry_assembly
&& !strcmp (assembly
->aname
.name
, n
)))
1570 for (l
= config
->assemblies
; l
; l
= l
->next
) {
1571 char *n
= (char*)l
->data
;
1573 if (!strcmp (assembly
->aname
.name
, n
))
1583 home
= g_get_home_dir ();
1586 cache_dir
= g_strdup_printf ("%s/Library/Caches/mono/aot-cache", home
);
1587 if (!g_file_test (cache_dir
, (GFileTest
)(G_FILE_TEST_EXISTS
|G_FILE_TEST_IS_DIR
)))
1588 g_mkdir_with_parents (cache_dir
, 0777);
1592 * The same assembly can be used in multiple configurations, i.e. multiple
1593 * versions of the runtime, with multiple versions of dependent assemblies etc.
1594 * To handle this, we compute a version string containing all this information, hash it,
1595 * and use the hash as a filename suffix.
1597 hash
= get_aot_config_hash (assembly
);
1599 tmp2
= g_strdup_printf ("%s-%s%s", assembly
->image
->assembly_name
, hash
, MONO_SOLIB_EXT
);
1600 fname
= g_build_filename (cache_dir
, tmp2
, NULL
);
1604 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT: loading from cache: '%s'.", fname
);
1605 module
= mono_dl_open (fname
, MONO_DL_LAZY
, NULL
);
1608 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT: found in cache: '%s'.", fname
);
1612 if (!strcmp (assembly
->aname
.name
, "mscorlib") && !mscorlib_aot_loaded
)
1614 * Can't AOT this during startup, so we AOT it when called later from
1615 * mono_aot_get_method ().
1619 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT: not found.");
1621 /* Only AOT one assembly per run to avoid slowing down execution too much */
1622 if (cache_count
> 0)
1626 /* Check for previous failure */
1627 failure_fname
= g_strdup_printf ("%s.failure", fname
);
1628 failure_file
= fopen (failure_fname
, "r");
1630 mono_trace (G_LOG_LEVEL_MESSAGE
, MONO_TRACE_AOT
, "AOT: assembly '%s' previously failed to compile '%s' ('%s')... ", assembly
->image
->name
, fname
, failure_fname
);
1631 g_free (failure_fname
);
1634 g_free (failure_fname
);
1635 fclose (failure_file
);
1638 mono_trace (G_LOG_LEVEL_MESSAGE
, MONO_TRACE_AOT
, "AOT: compiling assembly '%s', logfile: '%s.log'... ", assembly
->image
->name
, fname
);
1641 * We need to invoke the AOT compiler here. There are multiple approaches:
1642 * - spawn a new runtime process. This can be hard when running with mkbundle, and
1643 * its hard to make the new process load the same set of assemblies.
1644 * - doing it in-process. This exposes the current process to bugs/leaks/side effects of
1646 * - fork a new process and do the work there.
1649 aot_options
= g_strdup_printf ("outfile=%s,internal-logfile=%s.log%s%s", fname
, fname
, config
->aot_options
? "," : "", config
->aot_options
? config
->aot_options
: "");
1650 /* Maybe due this in another thread ? */
1651 res
= mono_compile_assembly (assembly
, mono_parse_default_optimizations (NULL
), aot_options
, NULL
);
1653 mono_trace (G_LOG_LEVEL_MESSAGE
, MONO_TRACE_AOT
, "AOT: compilation failed.");
1654 failure_fname
= g_strdup_printf ("%s.failure", fname
);
1655 failure_file
= fopen (failure_fname
, "a+");
1656 fclose (failure_file
);
1657 g_free (failure_fname
);
1659 mono_trace (G_LOG_LEVEL_MESSAGE
, MONO_TRACE_AOT
, "AOT: compilation succeeded.");
1663 * - Avoid waiting for the aot process to finish ?
1664 * (less overhead, but multiple processes could aot the same assembly at the same time)
1673 logfile_name
= g_strdup_printf ("%s/aot.log", cache_dir
);
1674 logfile
= fopen (logfile_name
, "a+");
1675 g_free (logfile_name
);
1677 dup2 (fileno (logfile
), 1);
1678 dup2 (fileno (logfile
), 2);
1680 aot_options
= g_strdup_printf ("outfile=%s", fname
);
1681 res
= mono_compile_assembly (assembly
, mono_parse_default_optimizations (NULL
), aot_options
, NULL
);
1689 waitpid (pid
, &exit_status
, 0);
1690 if (!WIFEXITED (exit_status
) && (WEXITSTATUS (exit_status
) == 0))
1691 mono_trace (G_LOG_LEVEL_MESSAGE
, MONO_TRACE_AOT
, "AOT: failed.");
1693 mono_trace (G_LOG_LEVEL_MESSAGE
, MONO_TRACE_AOT
, "AOT: succeeded.");
1697 module
= mono_dl_open (fname
, MONO_DL_LAZY
, NULL
);
1705 aot_cache_init (void)
1710 aot_cache_load_module (MonoAssembly
*assembly
, char **aot_name
)
1718 find_symbol (MonoDl
*module
, gpointer
*globals
, const char *name
, gpointer
*value
)
1722 guint16
*table
, *entry
;
1725 char *symbol
= (char*)name
;
1728 symbol
= g_strdup_printf ("_%s", name
);
1731 /* The first entry points to the hash */
1732 table
= (guint16
*)globals
[0];
1735 table_size
= table
[0];
1738 hash
= mono_metadata_str_hash (symbol
) % table_size
;
1740 entry
= &table
[hash
* 2];
1742 /* Search the hash for the index into the globals table */
1744 while (entry
[0] != 0) {
1745 guint32 index
= entry
[0] - 1;
1746 guint32 next
= entry
[1];
1748 //printf ("X: %s %s\n", (char*)globals [index * 2], name);
1750 if (!strcmp ((const char*)globals
[index
* 2], symbol
)) {
1751 global_index
= index
;
1756 entry
= &table
[next
* 2];
1762 if (global_index
!= -1)
1763 *value
= globals
[global_index
* 2 + 1];
1770 char *err
= mono_dl_symbol (module
, name
, value
);
1778 find_amodule_symbol (MonoAotModule
*amodule
, const char *name
, gpointer
*value
)
1780 g_assert (!(amodule
->info
.flags
& MONO_AOT_FILE_FLAG_LLVM_ONLY
));
1782 find_symbol (amodule
->sofile
, amodule
->globals
, name
, value
);
1786 mono_install_load_aot_data_hook (MonoLoadAotDataFunc load_func
, MonoFreeAotDataFunc free_func
, gpointer user_data
)
1788 aot_data_load_func
= load_func
;
1789 aot_data_free_func
= free_func
;
1790 aot_data_func_user_data
= user_data
;
1793 /* Load the separate aot data file for ASSEMBLY */
1795 open_aot_data (MonoAssembly
*assembly
, MonoAotFileInfo
*info
, void **ret_handle
)
1801 if (aot_data_load_func
) {
1802 data
= aot_data_load_func (assembly
, info
->datafile_size
, aot_data_func_user_data
, ret_handle
);
1808 * Use <assembly name>.aotdata as the default implementation if no callback is given
1810 filename
= g_strdup_printf ("%s.aotdata", assembly
->image
->name
);
1811 map
= mono_file_map_open (filename
);
1813 data
= (guint8
*)mono_file_map (info
->datafile_size
, MONO_MMAP_READ
, mono_file_map_fd (map
), 0, ret_handle
);
1820 check_usable (MonoAssembly
*assembly
, MonoAotFileInfo
*info
, guint8
*blob
, char **out_msg
)
1824 gboolean usable
= TRUE
;
1825 gboolean full_aot
, interp
, safepoints
;
1826 guint32 excluded_cpu_optimizations
;
1828 if (strcmp (assembly
->image
->guid
, (const char*)info
->assembly_guid
)) {
1829 msg
= g_strdup_printf ("doesn't match assembly");
1833 build_info
= mono_get_runtime_build_info ();
1834 if (strlen ((const char *)info
->runtime_version
) > 0 && strcmp (info
->runtime_version
, build_info
)) {
1835 msg
= g_strdup_printf ("compiled against runtime version '%s' while this runtime has version '%s'", info
->runtime_version
, build_info
);
1838 g_free (build_info
);
1840 full_aot
= info
->flags
& MONO_AOT_FILE_FLAG_FULL_AOT
;
1841 interp
= info
->flags
& MONO_AOT_FILE_FLAG_INTERP
;
1843 if (mono_aot_only
&& !full_aot
) {
1845 msg
= g_strdup_printf ("not compiled with --aot=full");
1849 if (!mono_aot_only
&& full_aot
) {
1850 msg
= g_strdup_printf ("compiled with --aot=full");
1853 if (mono_use_interpreter
&& !interp
) {
1854 msg
= g_strdup_printf ("not compiled with --aot=interp");
1857 if (mono_llvm_only
&& !(info
->flags
& MONO_AOT_FILE_FLAG_LLVM_ONLY
)) {
1858 msg
= g_strdup_printf ("not compiled with --aot=llvmonly");
1861 if (mono_use_llvm
&& !(info
->flags
& MONO_AOT_FILE_FLAG_WITH_LLVM
)) {
1862 /* Prefer LLVM JITted code when using --llvm */
1863 msg
= g_strdup_printf ("not compiled with --aot=llvm");
1866 if (mini_get_debug_options ()->mdb_optimizations
&& !(info
->flags
& MONO_AOT_FILE_FLAG_DEBUG
) && !full_aot
) {
1867 msg
= g_strdup_printf ("not compiled for debugging");
1871 mono_arch_cpu_optimizations (&excluded_cpu_optimizations
);
1872 if (info
->opts
& excluded_cpu_optimizations
) {
1873 msg
= g_strdup_printf ("compiled with unsupported CPU optimizations");
1877 if (!mono_aot_only
&& (info
->simd_opts
& ~mono_arch_cpu_enumerate_simd_versions ())) {
1878 msg
= g_strdup_printf ("compiled with unsupported SIMD extensions");
1882 if (info
->gc_name_index
!= -1) {
1883 char *gc_name
= (char*)&blob
[info
->gc_name_index
];
1884 const char *current_gc_name
= mono_gc_get_gc_name ();
1886 if (strcmp (current_gc_name
, gc_name
) != 0) {
1887 msg
= g_strdup_printf ("compiled against GC %s, while the current runtime uses GC %s.\n", gc_name
, current_gc_name
);
1892 safepoints
= info
->flags
& MONO_AOT_FILE_FLAG_SAFEPOINTS
;
1894 if (!safepoints
&& mono_threads_are_safepoints_enabled ()) {
1895 msg
= g_strdup_printf ("not compiled with safepoints");
1904 * TABLE should point to a table of call instructions. Return the address called by the INDEXth entry.
1907 get_call_table_entry (void *table
, int index
)
1909 #if defined(TARGET_ARM)
1914 ins_addr
= (guint32
*)table
+ index
;
1916 if ((ins
>> ARMCOND_SHIFT
) == ARMCOND_NV
) {
1918 offset
= (((int)(((ins
& 0xffffff) << 1) | ((ins
>> 24) & 0x1))) << 7) >> 7;
1919 return (char*)ins_addr
+ (offset
* 2) + 8 + 1;
1921 offset
= (((int)ins
& 0xffffff) << 8) >> 8;
1922 return (char*)ins_addr
+ (offset
* 4) + 8;
1924 #elif defined(TARGET_ARM64)
1925 return mono_arch_get_call_target ((guint8
*)table
+ (index
* 4) + 4);
1926 #elif defined(TARGET_X86) || defined(TARGET_AMD64)
1927 /* The callee expects an ip which points after the call */
1928 return mono_arch_get_call_target ((guint8
*)table
+ (index
* 5) + 5);
1930 g_assert_not_reached ();
1938 * Initialize the shared got entries for AMODULE.
1941 init_amodule_got (MonoAotModule
*amodule
)
1945 MonoJumpInfo
*patches
;
1946 guint32 got_offsets
[128];
1950 /* These can't be initialized in load_aot_module () */
1951 if (amodule
->got_initialized
== GOT_INITIALIZED
)
1954 mono_loader_lock ();
1957 * If it is initialized some other thread did it in the meantime. If it is
1958 * initializing it means the current thread is initializing it since we are
1959 * holding the loader lock, skip it.
1961 if (amodule
->got_initialized
) {
1962 mono_loader_unlock ();
1966 amodule
->got_initialized
= GOT_INITIALIZING
;
1968 mp
= mono_mempool_new ();
1969 npatches
= amodule
->info
.nshared_got_entries
;
1970 for (i
= 0; i
< npatches
; ++i
)
1971 got_offsets
[i
] = i
;
1972 patches
= decode_patches (amodule
, mp
, npatches
, FALSE
, got_offsets
);
1974 for (i
= 0; i
< npatches
; ++i
) {
1977 if (ji
->type
== MONO_PATCH_INFO_GC_CARD_TABLE_ADDR
&& !mono_gc_is_moving ()) {
1978 amodule
->shared_got
[i
] = NULL
;
1979 } else if (ji
->type
== MONO_PATCH_INFO_GC_NURSERY_START
&& !mono_gc_is_moving ()) {
1980 amodule
->shared_got
[i
] = NULL
;
1981 } else if (ji
->type
== MONO_PATCH_INFO_GC_NURSERY_BITS
&& !mono_gc_is_moving ()) {
1982 amodule
->shared_got
[i
] = NULL
;
1983 } else if (ji
->type
== MONO_PATCH_INFO_IMAGE
) {
1984 amodule
->shared_got
[i
] = amodule
->assembly
->image
;
1985 } else if (ji
->type
== MONO_PATCH_INFO_MSCORLIB_GOT_ADDR
) {
1986 if (mono_defaults
.corlib
) {
1987 MonoAotModule
*mscorlib_amodule
= mono_defaults
.corlib
->aot_module
;
1989 if (mscorlib_amodule
)
1990 amodule
->shared_got
[i
] = mscorlib_amodule
->got
;
1992 amodule
->shared_got
[i
] = amodule
->got
;
1994 } else if (ji
->type
== MONO_PATCH_INFO_AOT_MODULE
) {
1995 amodule
->shared_got
[i
] = amodule
;
1997 amodule
->shared_got
[i
] = mono_resolve_patch_target (NULL
, mono_get_root_domain (), NULL
, ji
, FALSE
, error
);
1998 mono_error_assert_ok (error
);
2003 for (i
= 0; i
< npatches
; ++i
)
2004 amodule
->got
[i
] = amodule
->shared_got
[i
];
2006 if (amodule
->llvm_got
) {
2007 for (i
= 0; i
< npatches
; ++i
)
2008 amodule
->llvm_got
[i
] = amodule
->shared_got
[i
];
2011 mono_mempool_destroy (mp
);
2013 mono_memory_barrier ();
2014 amodule
->got_initialized
= GOT_INITIALIZED
;
2015 mono_loader_unlock ();
2019 load_aot_module (MonoAssembly
*assembly
, gpointer user_data
)
2021 char *aot_name
, *found_aot_name
;
2022 MonoAotModule
*amodule
;
2024 gboolean usable
= TRUE
;
2025 char *version_symbol
= NULL
;
2027 gpointer
*globals
= NULL
;
2028 MonoAotFileInfo
*info
= NULL
;
2030 gboolean do_load_image
= TRUE
;
2031 int align_double
, align_int64
;
2032 guint8
*aot_data
= NULL
;
2034 if (mono_compile_aot
)
2037 if (assembly
->image
->aot_module
)
2039 * Already loaded. This can happen because the assembly loading code might invoke
2040 * the assembly load hooks multiple times for the same assembly.
2044 if (image_is_dynamic (assembly
->image
) || mono_asmctx_get_kind (&assembly
->context
) == MONO_ASMCTX_REFONLY
|| mono_domain_get () != mono_get_root_domain ())
2049 if (container_assm_name
&& !container_amodule
) {
2050 char *local_ref
= container_assm_name
;
2051 container_assm_name
= NULL
;
2052 MonoImageOpenStatus status
= MONO_IMAGE_OK
;
2053 gchar
*dll
= g_strdup_printf ( "%s.dll", local_ref
);
2054 MonoAssembly
*assm
= mono_assembly_open_a_lot (dll
, &status
, MONO_ASMCTX_DEFAULT
);
2056 gchar
*exe
= g_strdup_printf ("%s.exe", local_ref
);
2057 assm
= mono_assembly_open_a_lot (exe
, &status
, MONO_ASMCTX_DEFAULT
);
2060 load_aot_module (assm
, NULL
);
2061 container_amodule
= assm
->image
->aot_module
;
2064 if (static_aot_modules
)
2065 info
= (MonoAotFileInfo
*)g_hash_table_lookup (static_aot_modules
, assembly
->aname
.name
);
2071 found_aot_name
= NULL
;
2074 /* Statically linked AOT module */
2075 aot_name
= g_strdup_printf ("%s", assembly
->aname
.name
);
2076 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "Found statically linked AOT module '%s'.", aot_name
);
2077 if (!(info
->flags
& MONO_AOT_FILE_FLAG_LLVM_ONLY
)) {
2078 globals
= (void **)info
->globals
;
2081 found_aot_name
= g_strdup (aot_name
);
2085 if (enable_aot_cache
)
2086 sofile
= aot_cache_load_module (assembly
, &aot_name
);
2088 aot_name
= g_strdup_printf ("%s%s", assembly
->image
->name
, MONO_SOLIB_EXT
);
2090 sofile
= mono_dl_open (aot_name
, MONO_DL_LAZY
, &err
);
2092 found_aot_name
= g_strdup (aot_name
);
2094 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT: image '%s' not found: %s", aot_name
, err
);
2100 char *basename
= g_path_get_basename (assembly
->image
->name
);
2101 aot_name
= g_strdup_printf ("%s/mono/aot-cache/%s/%s%s", mono_assembly_getrootdir(), MONO_ARCHITECTURE
, basename
, MONO_SOLIB_EXT
);
2103 sofile
= mono_dl_open (aot_name
, MONO_DL_LAZY
, &err
);
2105 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT: image '%s' not found: %s", aot_name
, err
);
2113 for (l
= mono_aot_paths
; l
; l
= l
->next
) {
2114 char *path
= (char*)l
->data
;
2116 char *basename
= g_path_get_basename (assembly
->image
->name
);
2117 aot_name
= g_strdup_printf ("%s/%s%s", path
, basename
, MONO_SOLIB_EXT
);
2118 sofile
= mono_dl_open (aot_name
, MONO_DL_LAZY
, &err
);
2120 found_aot_name
= g_strdup (aot_name
);
2122 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT: image '%s' not found: %s", aot_name
, err
);
2132 if (mono_aot_only
&& !mono_use_interpreter
&& assembly
->image
->tables
[MONO_TABLE_METHOD
].rows
) {
2133 aot_name
= g_strdup_printf ("%s%s", assembly
->image
->name
, MONO_SOLIB_EXT
);
2134 g_error ("Failed to load AOT module '%s' in aot-only mode.\n", aot_name
);
2142 find_symbol (sofile
, globals
, "mono_aot_version", (gpointer
*) &version_symbol
);
2143 find_symbol (sofile
, globals
, "mono_aot_file_info", (gpointer
*)&info
);
2146 // Copy aotid to MonoImage
2147 memcpy(&assembly
->image
->aotid
, info
->aotid
, 16);
2149 if (version_symbol
) {
2150 /* Old file format */
2151 version
= atoi (version_symbol
);
2154 version
= info
->version
;
2157 if (version
!= MONO_AOT_FILE_VERSION
) {
2158 msg
= g_strdup_printf ("wrong file format version (expected %d got %d)", MONO_AOT_FILE_VERSION
, version
);
2164 if (info
->flags
& MONO_AOT_FILE_FLAG_SEPARATE_DATA
) {
2165 aot_data
= open_aot_data (assembly
, info
, &handle
);
2167 blob
= aot_data
+ info
->table_offsets
[MONO_AOT_TABLE_BLOB
];
2169 blob
= (guint8
*)info
->blob
;
2172 usable
= check_usable (assembly
, info
, blob
, &msg
);
2176 if (mono_aot_only
) {
2177 g_error ("Failed to load AOT module '%s' while running in aot-only mode: %s.\n", found_aot_name
, msg
);
2179 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT: module %s is unusable: %s.", found_aot_name
, msg
);
2182 g_free (found_aot_name
);
2184 mono_dl_close (sofile
);
2185 assembly
->image
->aot_module
= NULL
;
2190 align_double
= MONO_ABI_ALIGNOF (double);
2191 align_int64
= MONO_ABI_ALIGNOF (gint64
);
2192 int card_table_shift_bits
= 0;
2193 gpointer card_table_mask
= NULL
;
2194 mono_gc_get_card_table (&card_table_shift_bits
, &card_table_mask
);
2196 g_assert (info
->double_align
== align_double
);
2197 g_assert (info
->long_align
== align_int64
);
2198 g_assert (info
->generic_tramp_num
== MONO_TRAMPOLINE_NUM
);
2199 g_assert (info
->card_table_shift_bits
== card_table_shift_bits
);
2200 g_assert (info
->card_table_mask
== GPOINTER_TO_UINT (card_table_mask
));
2202 amodule
= g_new0 (MonoAotModule
, 1);
2203 amodule
->aot_name
= found_aot_name
;
2204 amodule
->assembly
= assembly
;
2206 memcpy (&amodule
->info
, info
, sizeof (*info
));
2208 amodule
->got
= (void **)amodule
->info
.jit_got
;
2209 amodule
->llvm_got
= (void **)amodule
->info
.llvm_got
;
2210 amodule
->globals
= globals
;
2211 amodule
->sofile
= sofile
;
2212 amodule
->method_to_code
= g_hash_table_new (mono_aligned_addr_hash
, NULL
);
2213 amodule
->extra_methods
= g_hash_table_new (NULL
, NULL
);
2214 amodule
->shared_got
= g_new0 (gpointer
, info
->nshared_got_entries
);
2216 if (info
->flags
& MONO_AOT_FILE_FLAG_SEPARATE_DATA
) {
2217 for (i
= 0; i
< MONO_AOT_TABLE_NUM
; ++i
)
2218 amodule
->tables
[i
] = aot_data
+ info
->table_offsets
[i
];
2221 mono_os_mutex_init_recursive (&amodule
->mutex
);
2223 /* Read image table */
2225 guint32 table_len
, i
;
2228 if (info
->flags
& MONO_AOT_FILE_FLAG_SEPARATE_DATA
)
2229 table
= (char *)amodule
->tables
[MONO_AOT_TABLE_IMAGE_TABLE
];
2231 table
= (char *)info
->image_table
;
2234 table_len
= *(guint32
*)table
;
2235 table
+= sizeof (guint32
);
2236 amodule
->image_table
= g_new0 (MonoImage
*, table_len
);
2237 amodule
->image_names
= g_new0 (MonoAssemblyName
, table_len
);
2238 amodule
->image_guids
= g_new0 (char*, table_len
);
2239 amodule
->image_table_len
= table_len
;
2240 for (i
= 0; i
< table_len
; ++i
) {
2241 MonoAssemblyName
*aname
= &(amodule
->image_names
[i
]);
2243 aname
->name
= g_strdup (table
);
2244 table
+= strlen (table
) + 1;
2245 amodule
->image_guids
[i
] = g_strdup (table
);
2246 table
+= strlen (table
) + 1;
2248 aname
->culture
= g_strdup (table
);
2249 table
+= strlen (table
) + 1;
2250 memcpy (aname
->public_key_token
, table
, strlen (table
) + 1);
2251 table
+= strlen (table
) + 1;
2253 table
= (char *)ALIGN_PTR_TO (table
, 8);
2254 aname
->flags
= *(guint32
*)table
;
2256 aname
->major
= *(guint32
*)table
;
2258 aname
->minor
= *(guint32
*)table
;
2260 aname
->build
= *(guint32
*)table
;
2262 aname
->revision
= *(guint32
*)table
;
2267 amodule
->jit_code_start
= (guint8
*)info
->jit_code_start
;
2268 amodule
->jit_code_end
= (guint8
*)info
->jit_code_end
;
2269 if (info
->flags
& MONO_AOT_FILE_FLAG_SEPARATE_DATA
) {
2270 amodule
->blob
= (guint8
*)amodule
->tables
[MONO_AOT_TABLE_BLOB
];
2271 amodule
->method_info_offsets
= (guint32
*)amodule
->tables
[MONO_AOT_TABLE_METHOD_INFO_OFFSETS
];
2272 amodule
->ex_info_offsets
= (guint32
*)amodule
->tables
[MONO_AOT_TABLE_EX_INFO_OFFSETS
];
2273 amodule
->class_info_offsets
= (guint32
*)amodule
->tables
[MONO_AOT_TABLE_CLASS_INFO_OFFSETS
];
2274 amodule
->class_name_table
= (guint16
*)amodule
->tables
[MONO_AOT_TABLE_CLASS_NAME
];
2275 amodule
->extra_method_table
= (guint32
*)amodule
->tables
[MONO_AOT_TABLE_EXTRA_METHOD_TABLE
];
2276 amodule
->extra_method_info_offsets
= (guint32
*)amodule
->tables
[MONO_AOT_TABLE_EXTRA_METHOD_INFO_OFFSETS
];
2277 amodule
->got_info_offsets
= (guint32
*)amodule
->tables
[MONO_AOT_TABLE_GOT_INFO_OFFSETS
];
2278 amodule
->llvm_got_info_offsets
= (guint32
*)amodule
->tables
[MONO_AOT_TABLE_LLVM_GOT_INFO_OFFSETS
];
2279 amodule
->weak_field_indexes
= (guint32
*)amodule
->tables
[MONO_AOT_TABLE_WEAK_FIELD_INDEXES
];
2281 amodule
->blob
= (guint8
*)info
->blob
;
2282 amodule
->method_info_offsets
= (guint32
*)info
->method_info_offsets
;
2283 amodule
->ex_info_offsets
= (guint32
*)info
->ex_info_offsets
;
2284 amodule
->class_info_offsets
= (guint32
*)info
->class_info_offsets
;
2285 amodule
->class_name_table
= (guint16
*)info
->class_name_table
;
2286 amodule
->extra_method_table
= (guint32
*)info
->extra_method_table
;
2287 amodule
->extra_method_info_offsets
= (guint32
*)info
->extra_method_info_offsets
;
2288 amodule
->got_info_offsets
= (guint32
*)info
->got_info_offsets
;
2289 amodule
->llvm_got_info_offsets
= (guint32
*)info
->llvm_got_info_offsets
;
2290 amodule
->weak_field_indexes
= (guint32
*)info
->weak_field_indexes
;
2292 amodule
->unbox_trampolines
= (guint32
*)info
->unbox_trampolines
;
2293 amodule
->unbox_trampolines_end
= (guint32
*)info
->unbox_trampolines_end
;
2294 amodule
->unbox_trampoline_addresses
= (guint32
*)info
->unbox_trampoline_addresses
;
2295 amodule
->unwind_info
= (guint8
*)info
->unwind_info
;
2296 amodule
->mem_begin
= (guint8
*)amodule
->jit_code_start
;
2297 amodule
->mem_end
= (guint8
*)info
->mem_end
;
2298 amodule
->plt
= (guint8
*)info
->plt
;
2299 amodule
->plt_end
= (guint8
*)info
->plt_end
;
2300 amodule
->mono_eh_frame
= (guint8
*)info
->mono_eh_frame
;
2301 amodule
->trampolines
[MONO_AOT_TRAMP_SPECIFIC
] = (guint8
*)info
->specific_trampolines
;
2302 amodule
->trampolines
[MONO_AOT_TRAMP_STATIC_RGCTX
] = (guint8
*)info
->static_rgctx_trampolines
;
2303 amodule
->trampolines
[MONO_AOT_TRAMP_IMT
] = (guint8
*)info
->imt_trampolines
;
2304 amodule
->trampolines
[MONO_AOT_TRAMP_GSHAREDVT_ARG
] = (guint8
*)info
->gsharedvt_arg_trampolines
;
2305 amodule
->trampolines
[MONO_AOT_TRAMP_FTNPTR_ARG
] = (guint8
*)info
->ftnptr_arg_trampolines
;
2306 amodule
->trampolines
[MONO_AOT_TRAMP_UNBOX_ARBITRARY
] = (guint8
*)info
->unbox_arbitrary_trampolines
;
2308 if (!strcmp (assembly
->aname
.name
, "mscorlib"))
2309 mscorlib_aot_module
= amodule
;
2311 /* Compute method addresses */
2312 amodule
->methods
= (void **)g_malloc0 (amodule
->info
.nmethods
* sizeof (gpointer
));
2313 for (i
= 0; i
< amodule
->info
.nmethods
; ++i
) {
2316 if (amodule
->info
.llvm_get_method
) {
2317 gpointer (*get_method
) (int) = (gpointer (*)(int))amodule
->info
.llvm_get_method
;
2319 addr
= get_method (i
);
2322 /* method_addresses () contains a table of branches, since the ios linker can update those correctly */
2323 if (!addr
&& amodule
->info
.method_addresses
) {
2324 addr
= get_call_table_entry (amodule
->info
.method_addresses
, i
);
2326 if (addr
== amodule
->info
.method_addresses
)
2330 amodule
->methods
[i
] = GINT_TO_POINTER (-1);
2332 amodule
->methods
[i
] = addr
;
2335 if (make_unreadable
) {
2336 #ifndef TARGET_WIN32
2338 guint8
*page_start
, *page_end
;
2341 addr
= amodule
->mem_begin
;
2343 len
= amodule
->mem_end
- amodule
->mem_begin
;
2345 /* Round down in both directions to avoid modifying data which is not ours */
2346 page_start
= (guint8
*) (((gssize
) (addr
)) & ~ (mono_pagesize () - 1)) + mono_pagesize ();
2347 page_end
= (guint8
*) (((gssize
) (addr
+ len
)) & ~ (mono_pagesize () - 1));
2348 if (page_end
> page_start
) {
2349 err
= mono_mprotect (page_start
, (page_end
- page_start
), MONO_MMAP_NONE
);
2350 g_assert (err
== 0);
2355 /* Compute the boundaries of LLVM code */
2356 if (info
->flags
& MONO_AOT_FILE_FLAG_WITH_LLVM
)
2357 compute_llvm_code_range (amodule
, &amodule
->llvm_code_start
, &amodule
->llvm_code_end
);
2361 if (amodule
->jit_code_start
) {
2362 aot_code_low_addr
= MIN (aot_code_low_addr
, (gsize
)amodule
->jit_code_start
);
2363 aot_code_high_addr
= MAX (aot_code_high_addr
, (gsize
)amodule
->jit_code_end
);
2365 if (amodule
->llvm_code_start
) {
2366 aot_code_low_addr
= MIN (aot_code_low_addr
, (gsize
)amodule
->llvm_code_start
);
2367 aot_code_high_addr
= MAX (aot_code_high_addr
, (gsize
)amodule
->llvm_code_end
);
2370 g_hash_table_insert (aot_modules
, assembly
, amodule
);
2373 if (amodule
->jit_code_start
)
2374 mono_jit_info_add_aot_module (assembly
->image
, amodule
->jit_code_start
, amodule
->jit_code_end
);
2375 if (amodule
->llvm_code_start
)
2376 mono_jit_info_add_aot_module (assembly
->image
, amodule
->llvm_code_start
, amodule
->llvm_code_end
);
2378 assembly
->image
->aot_module
= amodule
;
2380 if (mono_aot_only
&& !mono_llvm_only
) {
2382 find_amodule_symbol (amodule
, "specific_trampolines_page", (gpointer
*)&code
);
2383 amodule
->use_page_trampolines
= code
!= NULL
;
2384 /*g_warning ("using page trampolines: %d", amodule->use_page_trampolines);*/
2388 * Register the plt region as a single trampoline so we can unwind from this code
2390 mono_aot_tramp_info_register (
2391 mono_tramp_info_create (
2394 amodule
->plt_end
- amodule
->plt
,
2396 mono_unwind_get_cie_program ()
2402 * Since we store methoddef and classdef tokens when referring to methods/classes in
2403 * referenced assemblies, we depend on the exact versions of the referenced assemblies.
2404 * MS calls this 'hard binding'. This means we have to load all referenced assemblies
2405 * non-lazily, since we can't handle out-of-date errors later.
2406 * The cached class info also depends on the exact assemblies.
2408 if (do_load_image
) {
2409 for (i
= 0; i
< amodule
->image_table_len
; ++i
) {
2411 load_image (amodule
, i
, error
);
2412 mono_error_cleanup (error
); /* FIXME don't swallow the error */
2416 if (amodule
->out_of_date
) {
2417 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT: Module %s is unusable because a dependency is out-of-date.", assembly
->image
->name
);
2419 g_error ("Failed to load AOT module '%s' while running in aot-only mode because a dependency cannot be found or it is out of date.\n", found_aot_name
);
2421 mono_trace (G_LOG_LEVEL_INFO
, MONO_TRACE_AOT
, "AOT: image '%s' found.", found_aot_name
);
2426 * mono_aot_register_module:
2428 * This should be called by embedding code to register normal AOT modules statically linked
2429 * into the executable.
2431 * \param aot_info the value of the 'mono_aot_module_<ASSEMBLY_NAME>_info' global symbol from the AOT module.
2434 mono_aot_register_module (gpointer
*aot_info
)
2438 MonoAotFileInfo
*info
= (MonoAotFileInfo
*)aot_info
;
2440 g_assert (info
->version
== MONO_AOT_FILE_VERSION
);
2442 if (!(info
->flags
& MONO_AOT_FILE_FLAG_LLVM_ONLY
)) {
2443 globals
= (void **)info
->globals
;
2447 aname
= (char *)info
->assembly_name
;
2449 /* This could be called before startup */
2453 if (!static_aot_modules
)
2454 static_aot_modules
= g_hash_table_new (g_str_hash
, g_str_equal
);
2456 g_hash_table_insert (static_aot_modules
, aname
, info
);
2458 if (info
->flags
& MONO_AOT_FILE_FLAG_EAGER_LOAD
) {
2459 g_assert (!container_assm_name
);
2460 container_assm_name
= aname
;
2468 mono_aot_init (void)
2470 mono_os_mutex_init_recursive (&aot_mutex
);
2471 mono_os_mutex_init_recursive (&aot_page_mutex
);
2472 aot_modules
= g_hash_table_new (NULL
, NULL
);
2474 mono_install_assembly_load_hook (load_aot_module
, NULL
);
2475 mono_counters_register ("Async JIT info size", MONO_COUNTER_INT
|MONO_COUNTER_JIT
, &async_jit_info_size
);
2477 char *lastaot
= g_getenv ("MONO_LASTAOT");
2479 mono_last_aot_method
= atoi (lastaot
);
2486 mono_aot_cleanup (void)
2488 g_hash_table_destroy (aot_jit_icall_hash
);
2489 g_hash_table_destroy (aot_modules
);
2493 decode_cached_class_info (MonoAotModule
*module
, MonoCachedClassInfo
*info
, guint8
*buf
, guint8
**endbuf
)
2500 info
->vtable_size
= decode_value (buf
, &buf
);
2501 if (info
->vtable_size
== -1)
2504 flags
= decode_value (buf
, &buf
);
2505 info
->ghcimpl
= (flags
>> 0) & 0x1;
2506 info
->has_finalize
= (flags
>> 1) & 0x1;
2507 info
->has_cctor
= (flags
>> 2) & 0x1;
2508 info
->has_nested_classes
= (flags
>> 3) & 0x1;
2509 info
->blittable
= (flags
>> 4) & 0x1;
2510 info
->has_references
= (flags
>> 5) & 0x1;
2511 info
->has_static_refs
= (flags
>> 6) & 0x1;
2512 info
->no_special_static_fields
= (flags
>> 7) & 0x1;
2513 info
->is_generic_container
= (flags
>> 8) & 0x1;
2514 info
->has_weak_fields
= (flags
>> 9) & 0x1;
2516 if (info
->has_cctor
) {
2517 res
= decode_method_ref (module
, &ref
, buf
, &buf
, error
);
2518 mono_error_assert_ok (error
); /* FIXME don't swallow the error */
2521 info
->cctor_token
= ref
.token
;
2523 if (info
->has_finalize
) {
2524 res
= decode_method_ref (module
, &ref
, buf
, &buf
, error
);
2525 mono_error_assert_ok (error
); /* FIXME don't swallow the error */
2528 info
->finalize_image
= ref
.image
;
2529 info
->finalize_token
= ref
.token
;
2532 info
->instance_size
= decode_value (buf
, &buf
);
2533 info
->class_size
= decode_value (buf
, &buf
);
2534 info
->packing_size
= decode_value (buf
, &buf
);
2535 info
->min_align
= decode_value (buf
, &buf
);
2543 mono_aot_get_method_from_vt_slot (MonoDomain
*domain
, MonoVTable
*vtable
, int slot
, MonoError
*error
)
2546 MonoClass
*klass
= vtable
->klass
;
2547 MonoAotModule
*amodule
= m_class_get_image (klass
)->aot_module
;
2549 MonoCachedClassInfo class_info
;
2554 ERROR_DECL_VALUE (inner_error
);
2558 if (MONO_CLASS_IS_INTERFACE_INTERNAL (klass
) || m_class_get_rank (klass
) || !amodule
)
2561 info
= &amodule
->blob
[mono_aot_get_offset (amodule
->class_info_offsets
, mono_metadata_token_index (m_class_get_type_token (klass
)) - 1)];
2564 err
= decode_cached_class_info (amodule
, &class_info
, p
, &p
);
2568 for (i
= 0; i
< slot
; ++i
) {
2569 decode_method_ref (amodule
, &ref
, p
, &p
, &inner_error
);
2570 mono_error_cleanup (&inner_error
); /* FIXME don't swallow the error */
2573 res
= decode_method_ref (amodule
, &ref
, p
, &p
, &inner_error
);
2574 mono_error_cleanup (&inner_error
); /* FIXME don't swallow the error */
2577 if (ref
.no_aot_trampoline
)
2580 if (mono_metadata_token_index (ref
.token
) == 0 || mono_metadata_token_table (ref
.token
) != MONO_TABLE_METHOD
)
2583 addr
= mono_aot_get_method_from_token (domain
, ref
.image
, ref
.token
, error
);
2588 mono_aot_get_cached_class_info (MonoClass
*klass
, MonoCachedClassInfo
*res
)
2590 MonoAotModule
*amodule
= m_class_get_image (klass
)->aot_module
;
2594 if (m_class_get_rank (klass
) || !m_class_get_type_token (klass
) || !amodule
)
2597 p
= (guint8
*)&amodule
->blob
[mono_aot_get_offset (amodule
->class_info_offsets
, mono_metadata_token_index (m_class_get_type_token (klass
)) - 1)];
2599 err
= decode_cached_class_info (amodule
, res
, p
, &p
);
2607 * mono_aot_get_class_from_name:
2609 * Obtains a MonoClass with a given namespace and a given name which is located in IMAGE,
2610 * using a cache stored in the AOT file.
2611 * Stores the resulting class in *KLASS if found, stores NULL otherwise.
2613 * Returns: TRUE if the klass was found/not found in the cache, FALSE if no aot file was
2617 mono_aot_get_class_from_name (MonoImage
*image
, const char *name_space
, const char *name
, MonoClass
**klass
)
2619 MonoAotModule
*amodule
= image
->aot_module
;
2620 guint16
*table
, *entry
;
2623 char full_name_buf
[1024];
2625 const char *name2
, *name_space2
;
2627 guint32 cols
[MONO_TYPEDEF_SIZE
];
2628 GHashTable
*nspace_table
;
2630 if (!amodule
|| !amodule
->class_name_table
)
2633 amodule_lock (amodule
);
2637 /* First look in the cache */
2638 if (!amodule
->name_cache
)
2639 amodule
->name_cache
= g_hash_table_new (g_str_hash
, g_str_equal
);
2640 nspace_table
= (GHashTable
*)g_hash_table_lookup (amodule
->name_cache
, name_space
);
2642 *klass
= (MonoClass
*)g_hash_table_lookup (nspace_table
, name
);
2644 amodule_unlock (amodule
);
2649 table_size
= amodule
->class_name_table
[0];
2650 table
= amodule
->class_name_table
+ 1;
2652 if (name_space
[0] == '\0')
2653 full_name
= g_strdup_printf ("%s", name
);
2655 if (strlen (name_space
) + strlen (name
) < 1000) {
2656 sprintf (full_name_buf
, "%s.%s", name_space
, name
);
2657 full_name
= full_name_buf
;
2659 full_name
= g_strdup_printf ("%s.%s", name_space
, name
);
2662 hash
= mono_metadata_str_hash (full_name
) % table_size
;
2663 if (full_name
!= full_name_buf
)
2666 entry
= &table
[hash
* 2];
2668 if (entry
[0] != 0) {
2669 t
= &image
->tables
[MONO_TABLE_TYPEDEF
];
2672 guint32 index
= entry
[0];
2673 guint32 next
= entry
[1];
2674 guint32 token
= mono_metadata_make_token (MONO_TABLE_TYPEDEF
, index
);
2676 name_table_accesses
++;
2678 mono_metadata_decode_row (t
, index
- 1, cols
, MONO_TYPEDEF_SIZE
);
2680 name2
= mono_metadata_string_heap (image
, cols
[MONO_TYPEDEF_NAME
]);
2681 name_space2
= mono_metadata_string_heap (image
, cols
[MONO_TYPEDEF_NAMESPACE
]);
2683 if (!strcmp (name
, name2
) && !strcmp (name_space
, name_space2
)) {
2685 amodule_unlock (amodule
);
2686 *klass
= mono_class_get_checked (image
, token
, error
);
2687 if (!mono_error_ok (error
))
2688 mono_error_cleanup (error
); /* FIXME don't swallow the error */
2692 amodule_lock (amodule
);
2693 nspace_table
= (GHashTable
*)g_hash_table_lookup (amodule
->name_cache
, name_space
);
2694 if (!nspace_table
) {
2695 nspace_table
= g_hash_table_new (g_str_hash
, g_str_equal
);
2696 g_hash_table_insert (amodule
->name_cache
, (char*)name_space2
, nspace_table
);
2698 g_hash_table_insert (nspace_table
, (char*)name2
, *klass
);
2699 amodule_unlock (amodule
);
2705 entry
= &table
[next
* 2];
2712 amodule_unlock (amodule
);
2718 mono_aot_get_weak_field_indexes (MonoImage
*image
)
2720 MonoAotModule
*amodule
= image
->aot_module
;
2725 /* Initialize weak field indexes from the cached copy */
2726 guint32
*indexes
= (guint32
*)amodule
->weak_field_indexes
;
2727 int len
= indexes
[0];
2728 GHashTable
*indexes_hash
= g_hash_table_new (NULL
, NULL
);
2729 for (int i
= 0; i
< len
; ++i
)
2730 g_hash_table_insert (indexes_hash
, GUINT_TO_POINTER (indexes
[i
+ 1]), GUINT_TO_POINTER (1));
2731 return indexes_hash
;
2734 /* Compute the boundaries of the LLVM code for AMODULE. */
2736 compute_llvm_code_range (MonoAotModule
*amodule
, guint8
**code_start
, guint8
**code_end
)
2739 int version
, fde_count
;
2742 if (amodule
->info
.llvm_get_method
) {
2743 gpointer (*get_method
) (int) = (gpointer (*)(int))amodule
->info
.llvm_get_method
;
2746 gsize min
= 1 << 30, max
= 0;
2749 // FIXME: This depends on emscripten allocating ftnptr ids sequentially
2750 for (int i
= 0; i
< amodule
->info
.nmethods
; ++i
) {
2753 addr
= get_method (i
);
2754 gsize val
= (gsize
)addr
;
2756 g_assert (val
> prev
);
2765 *code_start
= (guint8
*)min
;
2766 *code_end
= (guint8
*)(max
+ 1);
2772 *code_start
= (guint8
*)get_method (-1);
2773 *code_end
= (guint8
*)get_method (-2);
2775 g_assert (*code_end
> *code_start
);
2780 g_assert (amodule
->mono_eh_frame
);
2782 p
= amodule
->mono_eh_frame
;
2784 /* p points to data emitted by LLVM in DwarfException::EmitMonoEHFrame () */
2788 g_assert (version
== 3);
2791 p
= (guint8
*)ALIGN_PTR_TO (p
, 4);
2793 fde_count
= *(guint32
*)p
;
2797 if (fde_count
> 0) {
2798 *code_start
= (guint8
*)amodule
->methods
[table
[0]];
2799 *code_end
= (guint8
*)amodule
->methods
[table
[(fde_count
- 1) * 2]] + table
[fde_count
* 2];
2807 is_llvm_code (MonoAotModule
*amodule
, guint8
*code
)
2812 if ((guint8
*)code
>= amodule
->llvm_code_start
&& (guint8
*)code
< amodule
->llvm_code_end
)
2820 is_thumb_code (MonoAotModule
*amodule
, guint8
*code
)
2822 if (is_llvm_code (amodule
, code
) && (amodule
->info
.flags
& MONO_AOT_FILE_FLAG_LLVM_THUMB
))
2829 * decode_llvm_mono_eh_frame:
2831 * Decode the EH information emitted by our modified LLVM compiler and construct a
2832 * MonoJitInfo structure from it.
2833 * If JINFO is NULL, set OUT_LLVM_CLAUSES to the number of llvm level clauses.
2834 * This function is async safe when called in async context.
2837 decode_llvm_mono_eh_frame (MonoAotModule
*amodule
, MonoDomain
*domain
, MonoJitInfo
*jinfo
,
2838 guint8
*code
, guint32 code_len
,
2839 MonoJitExceptionInfo
*clauses
, int num_clauses
,
2841 int *this_reg
, int *this_offset
, int *out_llvm_clauses
)
2843 guint8
*p
, *code1
, *code2
;
2844 guint8
*fde
, *cie
, *code_start
, *code_end
;
2845 int version
, fde_count
;
2847 int i
, pos
, left
, right
;
2848 MonoJitExceptionInfo
*ei
;
2849 guint32 fde_len
, ei_len
, nested_len
, nindex
;
2850 gpointer
*type_info
;
2851 MonoLLVMFDEInfo info
;
2855 async
= mono_thread_info_is_async_context ();
2857 if (!amodule
->mono_eh_frame
) {
2859 *out_llvm_clauses
= num_clauses
;
2862 memcpy (jinfo
->clauses
, clauses
, num_clauses
* sizeof (MonoJitExceptionInfo
));
2866 g_assert (amodule
->mono_eh_frame
&& code
);
2868 p
= amodule
->mono_eh_frame
;
2870 /* p points to data emitted by LLVM in DwarfMonoException::EmitMonoEHFrame () */
2874 g_assert (version
== 3);
2876 /* func_encoding = *p; */
2878 p
= (guint8
*)ALIGN_PTR_TO (p
, 4);
2880 fde_count
= *(guint32
*)p
;
2884 /* There is +1 entry in the table */
2885 cie
= p
+ ((fde_count
+ 1) * 8);
2887 /* Binary search in the table to find the entry for code */
2891 pos
= (left
+ right
) / 2;
2893 /* The table contains method index/fde offset pairs */
2894 g_assert (table
[(pos
* 2)] != -1);
2895 code1
= (guint8
*)amodule
->methods
[table
[(pos
* 2)]];
2896 if (pos
+ 1 == fde_count
) {
2897 code2
= amodule
->llvm_code_end
;
2899 g_assert (table
[(pos
+ 1) * 2] != -1);
2900 code2
= (guint8
*)amodule
->methods
[table
[(pos
+ 1) * 2]];
2905 else if (code
>= code2
)
2911 code_start
= (guint8
*)amodule
->methods
[table
[(pos
* 2)]];
2912 if (pos
+ 1 == fde_count
) {
2913 /* The +1 entry in the table contains the length of the last method */
2914 int len
= table
[(pos
+ 1) * 2];
2915 code_end
= code_start
+ len
;
2917 code_end
= (guint8
*)amodule
->methods
[table
[(pos
+ 1) * 2]];
2920 code_len
= code_end
- code_start
;
2922 g_assert (code
>= code_start
&& code
< code_end
);
2924 if (is_thumb_code (amodule
, code_start
))
2925 /* Clear thumb flag */
2926 code_start
= (guint8
*)(((gsize
)code_start
) & ~1);
2928 fde
= amodule
->mono_eh_frame
+ table
[(pos
* 2) + 1];
2929 /* This won't overflow because there is +1 entry in the table */
2930 fde_len
= table
[(pos
* 2) + 2 + 1] - table
[(pos
* 2) + 1];
2932 /* Compute lengths */
2933 mono_unwind_decode_llvm_mono_fde (fde
, fde_len
, cie
, code_start
, &info
, NULL
, NULL
, NULL
);
2936 /* These are leaked, but the leak is bounded */
2937 ei
= mono_domain_alloc0_lock_free (domain
, info
.ex_info_len
* sizeof (MonoJitExceptionInfo
));
2938 type_info
= mono_domain_alloc0_lock_free (domain
, info
.ex_info_len
* sizeof (gpointer
));
2939 unw_info
= mono_domain_alloc0_lock_free (domain
, info
.unw_info_len
);
2941 ei
= (MonoJitExceptionInfo
*)g_malloc0 (info
.ex_info_len
* sizeof (MonoJitExceptionInfo
));
2942 type_info
= (gpointer
*)g_malloc0 (info
.ex_info_len
* sizeof (gpointer
));
2943 unw_info
= (guint8
*)g_malloc0 (info
.unw_info_len
);
2945 mono_unwind_decode_llvm_mono_fde (fde
, fde_len
, cie
, code_start
, &info
, ei
, type_info
, unw_info
);
2947 ei_len
= info
.ex_info_len
;
2948 *this_reg
= info
.this_reg
;
2949 *this_offset
= info
.this_offset
;
2952 * LLVM might represent one IL region with multiple regions.
2955 /* Count number of nested clauses */
2957 for (i
= 0; i
< ei_len
; ++i
) {
2958 /* This might be unaligned */
2959 gint32 cindex1
= read32 (type_info
[i
]);
2962 for (l
= nesting
[cindex1
]; l
; l
= l
->next
)
2967 *out_llvm_clauses
= ei_len
+ nested_len
;
2971 /* Store the unwind info addr/length in the MonoJitInfo structure itself so its async safe */
2972 MonoUnwindJitInfo
*jinfo_unwind
= mono_jit_info_get_unwind_info (jinfo
);
2973 g_assert (jinfo_unwind
);
2974 jinfo_unwind
->unw_info
= unw_info
;
2975 jinfo_unwind
->unw_info_len
= info
.unw_info_len
;
2977 for (i
= 0; i
< ei_len
; ++i
) {
2979 * clauses contains the original IL exception info saved by the AOT
2980 * compiler, we have to combine that with the information produced by LLVM
2982 /* The type_info entries contain IL clause indexes */
2983 int clause_index
= read32 (type_info
[i
]);
2984 MonoJitExceptionInfo
*jei
= &jinfo
->clauses
[i
];
2985 MonoJitExceptionInfo
*orig_jei
= &clauses
[clause_index
];
2987 g_assert (clause_index
< num_clauses
);
2988 jei
->flags
= orig_jei
->flags
;
2989 jei
->data
.catch_class
= orig_jei
->data
.catch_class
;
2991 jei
->try_start
= ei
[i
].try_start
;
2992 jei
->try_end
= ei
[i
].try_end
;
2993 jei
->handler_start
= ei
[i
].handler_start
;
2994 jei
->clause_index
= clause_index
;
2996 if (is_thumb_code (amodule
, (guint8
*)jei
->try_start
)) {
2997 jei
->try_start
= (void*)((gsize
)jei
->try_start
& ~1);
2998 jei
->try_end
= (void*)((gsize
)jei
->try_end
& ~1);
2999 /* Make sure we transition to thumb when a handler starts */
3000 jei
->handler_start
= (void*)((gsize
)jei
->handler_start
+ 1);
3004 /* See exception_cb () in mini-llvm.c as to why this is needed */
3006 for (i
= 0; i
< ei_len
; ++i
) {
3007 gint32 cindex1
= read32 (type_info
[i
]);
3010 for (l
= nesting
[cindex1
]; l
; l
= l
->next
) {
3011 gint32 nesting_cindex
= GPOINTER_TO_INT (l
->data
);
3012 MonoJitExceptionInfo
*nesting_ei
;
3013 MonoJitExceptionInfo
*nesting_clause
= &clauses
[nesting_cindex
];
3015 nesting_ei
= &jinfo
->clauses
[nindex
];
3018 memcpy (nesting_ei
, &jinfo
->clauses
[i
], sizeof (MonoJitExceptionInfo
));
3019 nesting_ei
->flags
= nesting_clause
->flags
;
3020 nesting_ei
->data
.catch_class
= nesting_clause
->data
.catch_class
;
3021 nesting_ei
->clause_index
= nesting_cindex
;
3024 g_assert (nindex
== ei_len
+ nested_len
);
3028 alloc0_jit_info_data (MonoDomain
*domain
, int size
, gboolean async_context
)
3030 #define alloc0_jit_info_data(domain, size, async_context) (g_cast (alloc0_jit_info_data ((domain), (size), (async_context))))
3035 if (async_context
) {
3036 res
= mono_domain_alloc0_lock_free (domain
, size
);
3037 mono_atomic_fetch_add_i32 (&async_jit_info_size
, size
);
3039 res
= mono_domain_alloc0 (domain
, size
);
3045 * LOCKING: Acquires the domain lock.
3046 * In async context, this is async safe.
3049 decode_exception_debug_info (MonoAotModule
*amodule
, MonoDomain
*domain
,
3050 MonoMethod
*method
, guint8
* ex_info
,
3051 guint8
*code
, guint32 code_len
)
3054 int i
, buf_len
, num_clauses
, len
;
3056 MonoJitInfoFlags flags
= JIT_INFO_NONE
;
3057 guint unwind_info
, eflags
;
3058 gboolean has_generic_jit_info
, has_dwarf_unwind_info
, has_clauses
, has_seq_points
, has_try_block_holes
, has_arch_eh_jit_info
;
3059 gboolean from_llvm
, has_gc_map
;
3061 int try_holes_info_size
, num_holes
;
3062 int this_reg
= 0, this_offset
= 0;
3065 /* Load the method info from the AOT file */
3066 async
= mono_thread_info_is_async_context ();
3069 eflags
= decode_value (p
, &p
);
3070 has_generic_jit_info
= (eflags
& 1) != 0;
3071 has_dwarf_unwind_info
= (eflags
& 2) != 0;
3072 has_clauses
= (eflags
& 4) != 0;
3073 has_seq_points
= (eflags
& 8) != 0;
3074 from_llvm
= (eflags
& 16) != 0;
3075 has_try_block_holes
= (eflags
& 32) != 0;
3076 has_gc_map
= (eflags
& 64) != 0;
3077 has_arch_eh_jit_info
= (eflags
& 128) != 0;
3079 if (has_dwarf_unwind_info
) {
3080 unwind_info
= decode_value (p
, &p
);
3081 g_assert (unwind_info
< (1 << 30));
3083 unwind_info
= decode_value (p
, &p
);
3085 if (has_generic_jit_info
)
3086 flags
|= JIT_INFO_HAS_GENERIC_JIT_INFO
;
3088 if (has_try_block_holes
) {
3089 num_holes
= decode_value (p
, &p
);
3090 flags
|= JIT_INFO_HAS_TRY_BLOCK_HOLES
;
3091 try_holes_info_size
= sizeof (MonoTryBlockHoleTableJitInfo
) + num_holes
* sizeof (MonoTryBlockHoleJitInfo
);
3093 num_holes
= try_holes_info_size
= 0;
3096 if (has_arch_eh_jit_info
) {
3097 flags
|= JIT_INFO_HAS_ARCH_EH_INFO
;
3098 /* Overwrite the original code_len which includes alignment padding */
3099 code_len
= decode_value (p
, &p
);
3102 /* Exception table */
3104 num_clauses
= decode_value (p
, &p
);
3109 MonoJitExceptionInfo
*clauses
;
3113 * Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
3117 if (num_clauses
< 16) {
3118 clauses
= g_newa (MonoJitExceptionInfo
, num_clauses
);
3119 nesting
= g_newa (GSList
*, num_clauses
);
3121 clauses
= alloc0_jit_info_data (domain
, sizeof (MonoJitExceptionInfo
) * num_clauses
, TRUE
);
3122 nesting
= alloc0_jit_info_data (domain
, sizeof (GSList
*) * num_clauses
, TRUE
);
3124 memset (clauses
, 0, sizeof (MonoJitExceptionInfo
) * num_clauses
);
3125 memset (nesting
, 0, sizeof (GSList
*) * num_clauses
);
3127 clauses
= g_new0 (MonoJitExceptionInfo
, num_clauses
);
3128 nesting
= g_new0 (GSList
*, num_clauses
);
3131 for (i
= 0; i
< num_clauses
; ++i
) {
3132 MonoJitExceptionInfo
*ei
= &clauses
[i
];
3134 ei
->flags
= decode_value (p
, &p
);
3136 if (!(ei
->flags
== MONO_EXCEPTION_CLAUSE_FILTER
|| ei
->flags
== MONO_EXCEPTION_CLAUSE_FINALLY
)) {
3137 int len
= decode_value (p
, &p
);
3143 ei
->data
.catch_class
= decode_klass_ref (amodule
, p
, &p
, error
);
3144 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3149 ei
->clause_index
= i
;
3151 ei
->try_offset
= decode_value (p
, &p
);
3152 ei
->try_len
= decode_value (p
, &p
);
3153 ei
->handler_offset
= decode_value (p
, &p
);
3154 ei
->handler_len
= decode_value (p
, &p
);
3156 /* Read the list of nesting clauses */
3158 int nesting_index
= decode_value (p
, &p
);
3159 if (nesting_index
== -1)
3163 nesting
[i
] = g_slist_prepend (nesting
[i
], GINT_TO_POINTER (nesting_index
));
3167 flags
|= JIT_INFO_HAS_UNWIND_INFO
;
3169 int num_llvm_clauses
;
3170 /* Get the length first */
3171 decode_llvm_mono_eh_frame (amodule
, domain
, NULL
, code
, code_len
, clauses
, num_clauses
, nesting
, &this_reg
, &this_offset
, &num_llvm_clauses
);
3172 len
= mono_jit_info_size (flags
, num_llvm_clauses
, num_holes
);
3173 jinfo
= (MonoJitInfo
*)alloc0_jit_info_data (domain
, len
, async
);
3174 mono_jit_info_init (jinfo
, method
, code
, code_len
, flags
, num_llvm_clauses
, num_holes
);
3176 decode_llvm_mono_eh_frame (amodule
, domain
, jinfo
, code
, code_len
, clauses
, num_clauses
, nesting
, &this_reg
, &this_offset
, NULL
);
3180 for (i
= 0; i
< num_clauses
; ++i
)
3181 g_slist_free (nesting
[i
]);
3184 jinfo
->from_llvm
= 1;
3186 len
= mono_jit_info_size (flags
, num_clauses
, num_holes
);
3187 jinfo
= (MonoJitInfo
*)alloc0_jit_info_data (domain
, len
, async
);
3188 mono_jit_info_init (jinfo
, method
, code
, code_len
, flags
, num_clauses
, num_holes
);
3190 for (i
= 0; i
< jinfo
->num_clauses
; ++i
) {
3191 MonoJitExceptionInfo
*ei
= &jinfo
->clauses
[i
];
3193 ei
->flags
= decode_value (p
, &p
);
3195 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
3196 /* Not used for catch clauses */
3197 if (ei
->flags
!= MONO_EXCEPTION_CLAUSE_NONE
)
3198 ei
->exvar_offset
= decode_value (p
, &p
);
3200 ei
->exvar_offset
= decode_value (p
, &p
);
3203 if (ei
->flags
== MONO_EXCEPTION_CLAUSE_FILTER
|| ei
->flags
== MONO_EXCEPTION_CLAUSE_FINALLY
)
3204 ei
->data
.filter
= code
+ decode_value (p
, &p
);
3206 int len
= decode_value (p
, &p
);
3212 ei
->data
.catch_class
= decode_klass_ref (amodule
, p
, &p
, error
);
3213 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3218 ei
->try_start
= code
+ decode_value (p
, &p
);
3219 ei
->try_end
= code
+ decode_value (p
, &p
);
3220 ei
->handler_start
= code
+ decode_value (p
, &p
);
3223 jinfo
->unwind_info
= unwind_info
;
3224 jinfo
->domain_neutral
= 0;
3225 jinfo
->from_aot
= 1;
3228 if (has_try_block_holes
) {
3229 MonoTryBlockHoleTableJitInfo
*table
;
3231 g_assert (jinfo
->has_try_block_holes
);
3233 table
= mono_jit_info_get_try_block_hole_table_info (jinfo
);
3236 table
->num_holes
= (guint16
)num_holes
;
3237 for (i
= 0; i
< num_holes
; ++i
) {
3238 MonoTryBlockHoleJitInfo
*hole
= &table
->holes
[i
];
3239 hole
->clause
= decode_value (p
, &p
);
3240 hole
->length
= decode_value (p
, &p
);
3241 hole
->offset
= decode_value (p
, &p
);
3245 if (has_arch_eh_jit_info
) {
3246 MonoArchEHJitInfo
*eh_info
;
3248 g_assert (jinfo
->has_arch_eh_info
);
3250 eh_info
= mono_jit_info_get_arch_eh_info (jinfo
);
3251 eh_info
->stack_size
= decode_value (p
, &p
);
3252 eh_info
->epilog_size
= decode_value (p
, &p
);
3256 /* The rest is not needed in async mode */
3257 jinfo
->async
= TRUE
;
3258 jinfo
->d
.aot_info
= amodule
;
3263 if (has_generic_jit_info
) {
3264 MonoGenericJitInfo
*gi
;
3267 g_assert (jinfo
->has_generic_jit_info
);
3269 gi
= mono_jit_info_get_generic_jit_info (jinfo
);
3272 gi
->nlocs
= decode_value (p
, &p
);
3274 gi
->locations
= (MonoDwarfLocListEntry
*)alloc0_jit_info_data (domain
, gi
->nlocs
* sizeof (MonoDwarfLocListEntry
), async
);
3275 for (i
= 0; i
< gi
->nlocs
; ++i
) {
3276 MonoDwarfLocListEntry
*entry
= &gi
->locations
[i
];
3278 entry
->is_reg
= decode_value (p
, &p
);
3279 entry
->reg
= decode_value (p
, &p
);
3281 entry
->offset
= decode_value (p
, &p
);
3283 entry
->from
= decode_value (p
, &p
);
3284 entry
->to
= decode_value (p
, &p
);
3289 gi
->has_this
= this_reg
!= -1;
3290 gi
->this_reg
= this_reg
;
3291 gi
->this_offset
= this_offset
;
3293 gi
->has_this
= decode_value (p
, &p
);
3294 gi
->this_reg
= decode_value (p
, &p
);
3295 gi
->this_offset
= decode_value (p
, &p
);
3299 len
= decode_value (p
, &p
);
3303 jinfo
->d
.method
= decode_resolve_method_ref (amodule
, p
, &p
, error
);
3304 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3307 gi
->generic_sharing_context
= alloc0_jit_info_data (domain
, sizeof (MonoGenericSharingContext
), async
);
3308 if (decode_value (p
, &p
)) {
3310 MonoGenericSharingContext
*gsctx
= gi
->generic_sharing_context
;
3312 gsctx
->is_gsharedvt
= TRUE
;
3316 if (method
&& has_seq_points
) {
3317 MonoSeqPointInfo
*seq_points
;
3319 p
+= mono_seq_point_info_read (&seq_points
, p
, FALSE
);
3321 mono_domain_lock (domain
);
3322 /* This could be set already since this function can be called more than once for the same method */
3323 if (!g_hash_table_lookup (domain_jit_info (domain
)->seq_points
, method
))
3324 g_hash_table_insert (domain_jit_info (domain
)->seq_points
, method
, seq_points
);
3326 mono_seq_point_info_free (seq_points
);
3327 mono_domain_unlock (domain
);
3329 jinfo
->seq_points
= seq_points
;
3332 /* Load debug info */
3333 buf_len
= decode_value (p
, &p
);
3335 mono_debug_add_aot_method (domain
, method
, code
, p
, buf_len
);
3339 int map_size
= decode_value (p
, &p
);
3340 /* The GC map requires 4 bytes of alignment */
3341 while ((guint64
)(gsize
)p
% 4)
3347 if (amodule
!= m_class_get_image (jinfo
->d
.method
->klass
)->aot_module
) {
3350 ji_to_amodule
= g_hash_table_new (NULL
, NULL
);
3351 g_hash_table_insert (ji_to_amodule
, jinfo
, amodule
);
3359 amodule_contains_code_addr (MonoAotModule
*amodule
, guint8
*code
)
3361 return (code
>= amodule
->jit_code_start
&& code
<= amodule
->jit_code_end
) ||
3362 (code
>= amodule
->llvm_code_start
&& code
<= amodule
->llvm_code_end
);
3366 * mono_aot_get_unwind_info:
3368 * Return a pointer to the DWARF unwind info belonging to JI.
3371 mono_aot_get_unwind_info (MonoJitInfo
*ji
, guint32
*unwind_info_len
)
3373 MonoAotModule
*amodule
;
3375 guint8
*code
= (guint8
*)ji
->code_start
;
3378 amodule
= ji
->d
.aot_info
;
3380 amodule
= m_class_get_image (jinfo_get_method (ji
)->klass
)->aot_module
;
3382 g_assert (ji
->from_aot
);
3384 if (!amodule_contains_code_addr (amodule
, code
)) {
3385 /* ji belongs to a different aot module than amodule */
3387 g_assert (ji_to_amodule
);
3388 amodule
= (MonoAotModule
*)g_hash_table_lookup (ji_to_amodule
, ji
);
3390 g_assert (amodule_contains_code_addr (amodule
, code
));
3394 p
= amodule
->unwind_info
+ ji
->unwind_info
;
3395 *unwind_info_len
= decode_value (p
, &p
);
3400 msort_method_addresses_internal (gpointer
*array
, int *indexes
, int lo
, int hi
, gpointer
*scratch
, int *scratch_indexes
)
3402 int mid
= (lo
+ hi
) / 2;
3409 for (i
= lo
; i
< hi
; ++i
)
3410 if (array
[i
] > array
[i
+ 1])
3413 /* Already sorted */
3417 msort_method_addresses_internal (array
, indexes
, lo
, mid
, scratch
, scratch_indexes
);
3418 msort_method_addresses_internal (array
, indexes
, mid
+ 1, hi
, scratch
, scratch_indexes
);
3420 if (array
[mid
] < array
[mid
+ 1])
3426 for (i
= lo
; i
<= hi
; i
++) {
3427 if (t_lo
<= mid
&& ((t_hi
> hi
) || array
[t_lo
] < array
[t_hi
])) {
3428 scratch
[i
] = array
[t_lo
];
3429 scratch_indexes
[i
] = indexes
[t_lo
];
3432 scratch
[i
] = array
[t_hi
];
3433 scratch_indexes
[i
] = indexes
[t_hi
];
3437 for (i
= lo
; i
<= hi
; ++i
) {
3438 array
[i
] = scratch
[i
];
3439 indexes
[i
] = scratch_indexes
[i
];
3444 msort_method_addresses (gpointer
*array
, int *indexes
, int len
)
3447 int *scratch_indexes
;
3449 scratch
= g_new (gpointer
, len
);
3450 scratch_indexes
= g_new (int, len
);
3451 msort_method_addresses_internal (array
, indexes
, 0, len
- 1, scratch
, scratch_indexes
);
3453 g_free (scratch_indexes
);
3457 * mono_aot_find_jit_info:
3459 * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
3460 * to the jit info tables.
3461 * FIXME: Large sizes in the lock free allocator
3464 mono_aot_find_jit_info (MonoDomain
*domain
, MonoImage
*image
, gpointer addr
)
3467 int pos
, left
, right
, code_len
;
3468 int method_index
, table_len
;
3470 MonoAotModule
*amodule
= image
->aot_module
;
3471 MonoMethod
*method
= NULL
;
3473 guint8
*code
, *ex_info
, *p
;
3477 guint8
*code1
, *code2
;
3484 nmethods
= amodule
->info
.nmethods
;
3486 if (domain
!= mono_get_root_domain ())
3490 if (!amodule_contains_code_addr (amodule
, (guint8
*)addr
))
3493 async
= mono_thread_info_is_async_context ();
3495 /* Compute a sorted table mapping code to method indexes. */
3496 if (!amodule
->sorted_methods
) {
3498 gpointer
*methods
= g_new0 (gpointer
, nmethods
);
3499 int *method_indexes
= g_new0 (int, nmethods
);
3500 int methods_len
= 0;
3502 for (i
= 0; i
< nmethods
; ++i
) {
3503 /* Skip the -1 entries to speed up sorting */
3504 if (amodule
->methods
[i
] == GINT_TO_POINTER (-1))
3506 methods
[methods_len
] = amodule
->methods
[i
];
3507 method_indexes
[methods_len
] = i
;
3510 /* Use a merge sort as this is mostly sorted */
3511 msort_method_addresses (methods
, method_indexes
, methods_len
);
3512 for (i
= 0; i
< methods_len
-1; ++i
)
3513 g_assert (methods
[i
] <= methods
[i
+ 1]);
3514 amodule
->sorted_methods_len
= methods_len
;
3515 if (mono_atomic_cas_ptr ((gpointer
*)&amodule
->sorted_methods
, methods
, NULL
) != NULL
)
3516 /* Somebody got in before us */
3518 if (mono_atomic_cas_ptr ((gpointer
*)&amodule
->sorted_method_indexes
, method_indexes
, NULL
) != NULL
)
3519 /* Somebody got in before us */
3520 g_free (method_indexes
);
3523 /* Binary search in the sorted_methods table */
3524 methods
= amodule
->sorted_methods
;
3525 methods_len
= amodule
->sorted_methods_len
;
3526 code
= (guint8
*)addr
;
3528 right
= methods_len
;
3530 pos
= (left
+ right
) / 2;
3532 code1
= (guint8
*)methods
[pos
];
3533 if (pos
+ 1 == methods_len
) {
3534 if (code1
>= amodule
->jit_code_start
&& code1
< amodule
->jit_code_end
)
3535 code2
= amodule
->jit_code_end
;
3537 code2
= amodule
->llvm_code_end
;
3539 code2
= (guint8
*)methods
[pos
+ 1];
3544 else if (code
>= code2
)
3550 g_assert (addr
>= methods
[pos
]);
3551 if (pos
+ 1 < methods_len
)
3552 g_assert (addr
< methods
[pos
+ 1]);
3553 method_index
= amodule
->sorted_method_indexes
[pos
];
3555 /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
3557 JitInfoMap
*table
= amodule
->async_jit_info_table
;
3561 len
= table
[0].method_index
;
3562 for (i
= 1; i
< len
; ++i
) {
3563 if (table
[i
].method_index
== method_index
)
3564 return table
[i
].jinfo
;
3569 code
= (guint8
*)amodule
->methods
[method_index
];
3570 ex_info
= &amodule
->blob
[mono_aot_get_offset (amodule
->ex_info_offsets
, method_index
)];
3572 if (pos
== methods_len
- 1) {
3573 if (code
>= amodule
->jit_code_start
&& code
< amodule
->jit_code_end
)
3574 code_len
= amodule
->jit_code_end
- code
;
3576 code_len
= amodule
->llvm_code_end
- code
;
3578 code_len
= (guint8
*)methods
[pos
+ 1] - (guint8
*)methods
[pos
];
3581 g_assert ((guint8
*)code
<= (guint8
*)addr
&& (guint8
*)addr
< (guint8
*)code
+ code_len
);
3583 /* Might be a wrapper/extra method */
3585 if (amodule
->extra_methods
) {
3586 amodule_lock (amodule
);
3587 method
= (MonoMethod
*)g_hash_table_lookup (amodule
->extra_methods
, GUINT_TO_POINTER (method_index
));
3588 amodule_unlock (amodule
);
3594 if (method_index
>= image
->tables
[MONO_TABLE_METHOD
].rows
) {
3596 * This is hit for extra methods which are called directly, so they are
3597 * not in amodule->extra_methods.
3599 table_len
= amodule
->extra_method_info_offsets
[0];
3600 table
= amodule
->extra_method_info_offsets
+ 1;
3607 pos
= ((left
+ right
) / 2);
3609 g_assert (pos
< table_len
);
3611 if (table
[pos
* 2] < method_index
)
3613 else if (table
[pos
* 2] > method_index
)
3619 p
= amodule
->blob
+ table
[(pos
* 2) + 1];
3620 method
= decode_resolve_method_ref (amodule
, p
, &p
, error
);
3621 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3623 /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
3627 token
= mono_metadata_make_token (MONO_TABLE_METHOD
, method_index
+ 1);
3628 method
= mono_get_method_checked (image
, token
, NULL
, NULL
, error
);
3630 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error
)); /* FIXME don't swallow the error */
3637 //printf ("F: %s\n", mono_method_full_name (method, TRUE));
3639 jinfo
= decode_exception_debug_info (amodule
, domain
, method
, ex_info
, code
, code_len
);
3641 g_assert ((guint8
*)addr
>= (guint8
*)jinfo
->code_start
);
3643 /* Add it to the normal JitInfo tables */
3645 JitInfoMap
*old_table
, *new_table
;
3649 * Use a simple inmutable table with linear search to cache async jit info entries.
3650 * This assumes that the number of entries is small.
3653 /* Copy the table, adding a new entry at the end */
3654 old_table
= amodule
->async_jit_info_table
;
3656 len
= old_table
[0].method_index
;
3659 new_table
= (JitInfoMap
*)alloc0_jit_info_data (domain
, (len
+ 1) * sizeof (JitInfoMap
), async
);
3661 memcpy (new_table
, old_table
, len
* sizeof (JitInfoMap
));
3662 new_table
[0].method_index
= len
+ 1;
3663 new_table
[len
].method_index
= method_index
;
3664 new_table
[len
].jinfo
= jinfo
;
3666 mono_memory_barrier ();
3667 if (mono_atomic_cas_ptr ((volatile gpointer
*)&amodule
->async_jit_info_table
, new_table
, old_table
) == old_table
)
3671 mono_jit_info_table_add (domain
, jinfo
);
3674 if ((guint8
*)addr
>= (guint8
*)jinfo
->code_start
+ jinfo
->code_size
)
3675 /* addr is in the padding between methods, see the adjustment of code_size in decode_exception_debug_info () */
3682 decode_patch (MonoAotModule
*aot_module
, MonoMemPool
*mp
, MonoJumpInfo
*ji
, guint8
*buf
, guint8
**endbuf
)
3691 case MONO_PATCH_INFO_METHOD
:
3692 case MONO_PATCH_INFO_METHOD_JUMP
:
3693 case MONO_PATCH_INFO_ICALL_ADDR
:
3694 case MONO_PATCH_INFO_ICALL_ADDR_CALL
:
3695 case MONO_PATCH_INFO_METHOD_RGCTX
:
3696 case MONO_PATCH_INFO_METHOD_CODE_SLOT
: {
3700 res
= decode_method_ref (aot_module
, &ref
, p
, &p
, error
);
3701 mono_error_assert_ok (error
); /* FIXME don't swallow the error */
3705 if (!ref
.method
&& !mono_aot_only
&& !ref
.no_aot_trampoline
&& (ji
->type
== MONO_PATCH_INFO_METHOD
) && (mono_metadata_token_table (ref
.token
) == MONO_TABLE_METHOD
)) {
3706 ji
->data
.target
= mono_create_ftnptr (mono_domain_get (), mono_create_jit_trampoline_from_token (ref
.image
, ref
.token
));
3707 ji
->type
= MONO_PATCH_INFO_ABS
;
3711 ji
->data
.method
= ref
.method
;
3714 ji
->data
.method
= mono_get_method_checked (ref
.image
, ref
.token
, NULL
, NULL
, error
);
3715 if (!ji
->data
.method
)
3716 g_error ("AOT Runtime could not load method due to %s", mono_error_get_message (error
)); /* FIXME don't swallow the error */
3718 g_assert (ji
->data
.method
);
3719 mono_class_init (ji
->data
.method
->klass
);
3723 case MONO_PATCH_INFO_INTERNAL_METHOD
:
3724 case MONO_PATCH_INFO_JIT_ICALL_ADDR
:
3725 case MONO_PATCH_INFO_JIT_ICALL_ADDR_NOCALL
: {
3726 guint32 len
= decode_value (p
, &p
);
3728 ji
->data
.name
= (char*)p
;
3732 case MONO_PATCH_INFO_METHODCONST
:
3734 ji
->data
.method
= decode_resolve_method_ref (aot_module
, p
, &p
, error
);
3735 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3736 if (!ji
->data
.method
)
3739 case MONO_PATCH_INFO_VTABLE
:
3740 case MONO_PATCH_INFO_CLASS
:
3741 case MONO_PATCH_INFO_IID
:
3742 case MONO_PATCH_INFO_ADJUSTED_IID
:
3744 ji
->data
.klass
= decode_klass_ref (aot_module
, p
, &p
, error
);
3745 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3746 if (!ji
->data
.klass
)
3749 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE
:
3750 ji
->data
.del_tramp
= (MonoDelegateClassMethodPair
*)mono_mempool_alloc0 (mp
, sizeof (MonoDelegateClassMethodPair
));
3751 ji
->data
.del_tramp
->klass
= decode_klass_ref (aot_module
, p
, &p
, error
);
3752 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3753 if (!ji
->data
.del_tramp
->klass
)
3755 if (decode_value (p
, &p
)) {
3756 ji
->data
.del_tramp
->method
= decode_resolve_method_ref (aot_module
, p
, &p
, error
);
3757 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3758 if (!ji
->data
.del_tramp
->method
)
3761 ji
->data
.del_tramp
->is_virtual
= decode_value (p
, &p
) ? TRUE
: FALSE
;
3763 case MONO_PATCH_INFO_IMAGE
:
3764 ji
->data
.image
= load_image (aot_module
, decode_value (p
, &p
), error
);
3765 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3766 if (!ji
->data
.image
)
3769 case MONO_PATCH_INFO_FIELD
:
3770 case MONO_PATCH_INFO_SFLDA
:
3772 ji
->data
.field
= decode_field_info (aot_module
, p
, &p
);
3773 if (!ji
->data
.field
)
3776 case MONO_PATCH_INFO_SWITCH
:
3777 ji
->data
.table
= (MonoJumpInfoBBTable
*)mono_mempool_alloc0 (mp
, sizeof (MonoJumpInfoBBTable
));
3778 ji
->data
.table
->table_size
= decode_value (p
, &p
);
3779 table
= (void **)mono_domain_alloc (mono_domain_get (), sizeof (gpointer
) * ji
->data
.table
->table_size
);
3780 ji
->data
.table
->table
= (MonoBasicBlock
**)table
;
3781 for (i
= 0; i
< ji
->data
.table
->table_size
; i
++)
3782 table
[i
] = (gpointer
)(gssize
)decode_value (p
, &p
);
3784 case MONO_PATCH_INFO_R4
: {
3787 ji
->data
.target
= mono_domain_alloc0 (mono_domain_get (), sizeof (float));
3788 val
= decode_value (p
, &p
);
3789 *(float*)ji
->data
.target
= *(float*)&val
;
3792 case MONO_PATCH_INFO_R8
: {
3796 ji
->data
.target
= mono_domain_alloc0 (mono_domain_get (), sizeof (double));
3798 val
[0] = decode_value (p
, &p
);
3799 val
[1] = decode_value (p
, &p
);
3800 v
= ((guint64
)val
[1] << 32) | ((guint64
)val
[0]);
3801 *(double*)ji
->data
.target
= *(double*)&v
;
3804 case MONO_PATCH_INFO_LDSTR
:
3805 image
= load_image (aot_module
, decode_value (p
, &p
), error
);
3806 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3809 ji
->data
.token
= mono_jump_info_token_new (mp
, image
, MONO_TOKEN_STRING
+ decode_value (p
, &p
));
3811 case MONO_PATCH_INFO_RVA
:
3812 case MONO_PATCH_INFO_DECLSEC
:
3813 case MONO_PATCH_INFO_LDTOKEN
:
3814 case MONO_PATCH_INFO_TYPE_FROM_HANDLE
:
3816 image
= load_image (aot_module
, decode_value (p
, &p
), error
);
3817 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3820 ji
->data
.token
= mono_jump_info_token_new (mp
, image
, decode_value (p
, &p
));
3822 ji
->data
.token
->has_context
= decode_value (p
, &p
);
3823 if (ji
->data
.token
->has_context
) {
3824 gboolean res
= decode_generic_context (aot_module
, &ji
->data
.token
->context
, p
, &p
, error
);
3825 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3830 case MONO_PATCH_INFO_EXC_NAME
:
3831 ji
->data
.klass
= decode_klass_ref (aot_module
, p
, &p
, error
);
3832 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3833 if (!ji
->data
.klass
)
3835 ji
->data
.name
= m_class_get_name (ji
->data
.klass
);
3837 case MONO_PATCH_INFO_METHOD_REL
:
3838 ji
->data
.offset
= decode_value (p
, &p
);
3840 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG
:
3841 case MONO_PATCH_INFO_GC_CARD_TABLE_ADDR
:
3842 case MONO_PATCH_INFO_GC_NURSERY_START
:
3843 case MONO_PATCH_INFO_GC_NURSERY_BITS
:
3844 case MONO_PATCH_INFO_PROFILER_ALLOCATION_COUNT
:
3845 case MONO_PATCH_INFO_PROFILER_CLAUSE_COUNT
:
3847 case MONO_PATCH_INFO_CASTCLASS_CACHE
:
3848 ji
->data
.index
= decode_value (p
, &p
);
3850 case MONO_PATCH_INFO_RGCTX_FETCH
:
3851 case MONO_PATCH_INFO_RGCTX_SLOT_INDEX
: {
3853 MonoJumpInfoRgctxEntry
*entry
;
3854 guint32 offset
, val
;
3857 offset
= decode_value (p
, &p
);
3858 val
= decode_value (p
, &p
);
3860 entry
= (MonoJumpInfoRgctxEntry
*)mono_mempool_alloc0 (mp
, sizeof (MonoJumpInfoRgctxEntry
));
3861 p2
= aot_module
->blob
+ offset
;
3862 entry
->method
= decode_resolve_method_ref (aot_module
, p2
, &p2
, error
);
3863 entry
->in_mrgctx
= ((val
& 1) > 0) ? TRUE
: FALSE
;
3864 entry
->info_type
= (MonoRgctxInfoType
)((val
>> 1) & 0xff);
3865 entry
->data
= (MonoJumpInfo
*)mono_mempool_alloc0 (mp
, sizeof (MonoJumpInfo
));
3866 entry
->data
->type
= (MonoJumpInfoType
)((val
>> 9) & 0xff);
3867 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3869 res
= decode_patch (aot_module
, mp
, entry
->data
, p
, &p
);
3872 ji
->data
.rgctx_entry
= entry
;
3875 case MONO_PATCH_INFO_SEQ_POINT_INFO
:
3876 case MONO_PATCH_INFO_AOT_MODULE
:
3877 case MONO_PATCH_INFO_MSCORLIB_GOT_ADDR
:
3879 case MONO_PATCH_INFO_SIGNATURE
:
3880 case MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER
:
3881 ji
->data
.target
= decode_signature (aot_module
, p
, &p
);
3883 case MONO_PATCH_INFO_GSHAREDVT_CALL
: {
3884 MonoJumpInfoGSharedVtCall
*info
= (MonoJumpInfoGSharedVtCall
*)mono_mempool_alloc0 (mp
, sizeof (MonoJumpInfoGSharedVtCall
));
3885 info
->sig
= decode_signature (aot_module
, p
, &p
);
3886 g_assert (info
->sig
);
3887 info
->method
= decode_resolve_method_ref (aot_module
, p
, &p
, error
);
3888 mono_error_assert_ok (error
); /* FIXME don't swallow the error */
3890 ji
->data
.target
= info
;
3893 case MONO_PATCH_INFO_GSHAREDVT_METHOD
: {
3894 MonoGSharedVtMethodInfo
*info
= (MonoGSharedVtMethodInfo
*)mono_mempool_alloc0 (mp
, sizeof (MonoGSharedVtMethodInfo
));
3897 info
->method
= decode_resolve_method_ref (aot_module
, p
, &p
, error
);
3898 mono_error_assert_ok (error
); /* FIXME don't swallow the error */
3900 info
->num_entries
= decode_value (p
, &p
);
3901 info
->count_entries
= info
->num_entries
;
3902 info
->entries
= (MonoRuntimeGenericContextInfoTemplate
*)mono_mempool_alloc0 (mp
, sizeof (MonoRuntimeGenericContextInfoTemplate
) * info
->num_entries
);
3903 for (i
= 0; i
< info
->num_entries
; ++i
) {
3904 MonoRuntimeGenericContextInfoTemplate
*template_
= &info
->entries
[i
];
3906 template_
->info_type
= (MonoRgctxInfoType
)decode_value (p
, &p
);
3907 switch (mini_rgctx_info_type_to_patch_info_type (template_
->info_type
)) {
3908 case MONO_PATCH_INFO_CLASS
: {
3909 MonoClass
*klass
= decode_klass_ref (aot_module
, p
, &p
, error
);
3910 mono_error_cleanup (error
); /* FIXME don't swallow the error */
3913 template_
->data
= m_class_get_byval_arg (klass
);
3916 case MONO_PATCH_INFO_FIELD
:
3917 template_
->data
= decode_field_info (aot_module
, p
, &p
);
3918 if (!template_
->data
)
3922 g_assert_not_reached ();
3926 ji
->data
.target
= info
;
3929 case MONO_PATCH_INFO_LDSTR_LIT
: {
3930 int len
= decode_value (p
, &p
);
3933 s
= (char *)mono_mempool_alloc0 (mp
, len
+ 1);
3934 memcpy (s
, p
, len
+ 1);
3937 ji
->data
.target
= s
;
3940 case MONO_PATCH_INFO_VIRT_METHOD
: {
3941 MonoJumpInfoVirtMethod
*info
= (MonoJumpInfoVirtMethod
*)mono_mempool_alloc0 (mp
, sizeof (MonoJumpInfoVirtMethod
));
3943 info
->klass
= decode_klass_ref (aot_module
, p
, &p
, error
);
3944 mono_error_assert_ok (error
); /* FIXME don't swallow the error */
3946 info
->method
= decode_resolve_method_ref (aot_module
, p
, &p
, error
);
3947 mono_error_assert_ok (error
); /* FIXME don't swallow the error */
3949 ji
->data
.target
= info
;
3952 case MONO_PATCH_INFO_GC_SAFE_POINT_FLAG
:
3954 case MONO_PATCH_INFO_GET_TLS_TRAMP
:
3955 case MONO_PATCH_INFO_SET_TLS_TRAMP
:
3956 case MONO_PATCH_INFO_AOT_JIT_INFO
:
3957 ji
->data
.index
= decode_value (p
, &p
);
3960 g_warning ("unhandled type %d", ji
->type
);
3961 g_assert_not_reached ();
3975 * Decode a list of patches identified by the got offsets in GOT_OFFSETS. Return an array of
3976 * MonoJumpInfo structures allocated from MP.
3978 static MonoJumpInfo
*
3979 decode_patches (MonoAotModule
*amodule
, MonoMemPool
*mp
, int n_patches
, gboolean llvm
, guint32
*got_offsets
)
3981 MonoJumpInfo
*patches
;
3984 guint32
*got_info_offsets
;
3989 got
= amodule
->llvm_got
;
3990 got_info_offsets
= (guint32
*)amodule
->llvm_got_info_offsets
;
3993 got_info_offsets
= (guint32
*)amodule
->got_info_offsets
;
3996 patches
= (MonoJumpInfo
*)mono_mempool_alloc0 (mp
, sizeof (MonoJumpInfo
) * n_patches
);
3997 for (i
= 0; i
< n_patches
; ++i
) {
3998 guint8
*p
= amodule
->blob
+ mono_aot_get_offset (got_info_offsets
, got_offsets
[i
]);
4001 ji
->type
= (MonoJumpInfoType
)decode_value (p
, &p
);
4003 /* See load_method () for SFLDA */
4004 if (got
&& got
[got_offsets
[i
]] && ji
->type
!= MONO_PATCH_INFO_SFLDA
) {
4005 /* Already loaded */
4007 res
= decode_patch (amodule
, mp
, ji
, p
, &p
);
4016 static MonoJumpInfo
*
4017 load_patch_info (MonoAotModule
*amodule
, MonoMemPool
*mp
, int n_patches
,
4018 gboolean llvm
, guint32
**got_slots
,
4019 guint8
*buf
, guint8
**endbuf
)
4021 MonoJumpInfo
*patches
;
4027 *got_slots
= (guint32
*)g_malloc (sizeof (guint32
) * n_patches
);
4028 for (pindex
= 0; pindex
< n_patches
; ++pindex
) {
4029 (*got_slots
)[pindex
] = decode_value (p
, &p
);
4032 patches
= decode_patches (amodule
, mp
, n_patches
, llvm
, *got_slots
);
4034 g_free (*got_slots
);
4044 register_jump_target_got_slot (MonoDomain
*domain
, MonoMethod
*method
, gpointer
*got_slot
)
4047 * Jump addresses cannot be patched by the trampoline code since it
4048 * does not have access to the caller's address. Instead, we collect
4049 * the addresses of the GOT slots pointing to a method, and patch
4050 * them after the method has been compiled.
4052 MonoJitDomainInfo
*info
= domain_jit_info (domain
);
4054 MonoMethod
*shared_method
= mini_method_to_shared (method
);
4055 method
= shared_method
? shared_method
: method
;
4057 mono_domain_lock (domain
);
4058 if (!info
->jump_target_got_slot_hash
)
4059 info
->jump_target_got_slot_hash
= g_hash_table_new (NULL
, NULL
);
4060 list
= (GSList
*)g_hash_table_lookup (info
->jump_target_got_slot_hash
, method
);
4061 list
= g_slist_prepend (list
, got_slot
);
4062 g_hash_table_insert (info
->jump_target_got_slot_hash
, method
, list
);
4063 mono_domain_unlock (domain
);
4069 * Load the method identified by METHOD_INDEX from the AOT image. Return a
4070 * pointer to the native code of the method, or NULL if not found.
4071 * METHOD might not be set if the caller only has the image/token info.
4074 load_method (MonoDomain
*domain
, MonoAotModule
*amodule
, MonoImage
*image
, MonoMethod
*method
, guint32 token
, int method_index
,
4077 MonoJitInfo
*jinfo
= NULL
;
4078 guint8
*code
= NULL
, *info
;
4083 init_amodule_got (amodule
);
4085 if (domain
!= mono_get_root_domain ())
4086 /* Non shared AOT code can't be used in other appdomains */
4089 if (amodule
->out_of_date
)
4092 if (amodule
->info
.llvm_get_method
) {
4094 * Obtain the method address by calling a generated function in the LLVM module.
4096 gpointer (*get_method
) (int) = (gpointer (*)(int))amodule
->info
.llvm_get_method
;
4097 code
= (guint8
*)get_method (method_index
);
4102 if (amodule
->methods
[method_index
] == GINT_TO_POINTER (-1)) {
4103 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
)) {
4107 method
= mono_get_method_checked (image
, token
, NULL
, NULL
, error
);
4111 if (!(method
->iflags
& METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL
)) {
4112 full_name
= mono_method_full_name (method
, TRUE
);
4113 mono_trace (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
, "AOT: NOT FOUND: %s.", full_name
);
4119 if (method_index
< amodule
->info
.nmethods
)
4120 code
= (guint8
*)amodule
->methods
[method_index
];
4123 info
= &amodule
->blob
[mono_aot_get_offset (amodule
->method_info_offsets
, method_index
)];
4125 if (!amodule
->methods_loaded
) {
4126 amodule_lock (amodule
);
4127 if (!amodule
->methods_loaded
) {
4130 loaded
= g_new0 (guint32
, amodule
->info
.nmethods
/ 32 + 1);
4131 mono_memory_barrier ();
4132 amodule
->methods_loaded
= loaded
;
4134 amodule_unlock (amodule
);
4137 if ((amodule
->methods_loaded
[method_index
/ 32] >> (method_index
% 32)) & 0x1)
4140 if (mini_debug_options
.aot_skip_set
&& !(method
&& method
->wrapper_type
)) {
4141 gint32 methods_aot
= mono_atomic_load_i32 (&mono_jit_stats
.methods_aot
);
4142 if (methods_aot
== mini_debug_options
.aot_skip
) {
4144 method
= mono_get_method_checked (image
, token
, NULL
, NULL
, error
);
4149 char *name
= mono_method_full_name (method
, TRUE
);
4150 g_print ("NON AOT METHOD: %s.\n", name
);
4153 g_print ("NON AOT METHOD: %p %d\n", code
, method_index
);
4155 mini_debug_options
.aot_skip_set
= FALSE
;
4160 if (mono_last_aot_method
!= -1) {
4161 gint32 methods_aot
= mono_atomic_load_i32 (&mono_jit_stats
.methods_aot
);
4162 if (methods_aot
>= mono_last_aot_method
)
4164 else if (methods_aot
== mono_last_aot_method
- 1) {
4166 method
= mono_get_method_checked (image
, token
, NULL
, NULL
, error
);
4171 char *name
= mono_method_full_name (method
, TRUE
);
4172 g_print ("LAST AOT METHOD: %s.\n", name
);
4175 g_print ("LAST AOT METHOD: %p %d\n", code
, method_index
);
4180 if (!(is_llvm_code (amodule
, code
) && (amodule
->info
.flags
& MONO_AOT_FILE_FLAG_LLVM_ONLY
)) ||
4181 (mono_llvm_only
&& method
&& method
->wrapper_type
== MONO_WRAPPER_NATIVE_TO_MANAGED
)) {
4182 res
= init_method (amodule
, method_index
, method
, NULL
, NULL
, error
);
4187 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
)) {
4191 method
= mono_get_method_checked (image
, token
, NULL
, NULL
, error
);
4196 full_name
= mono_method_full_name (method
, TRUE
);
4199 jinfo
= mono_aot_find_jit_info (domain
, amodule
->assembly
->image
, code
);
4201 mono_trace (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
, "AOT: FOUND method %s [%p - %p %p]", full_name
, code
, code
+ jinfo
->code_size
, info
);
4205 amodule_lock (amodule
);
4209 mono_atomic_inc_i32 (&mono_jit_stats
.methods_aot
);
4211 if (method
&& method
->wrapper_type
)
4212 g_hash_table_insert (amodule
->method_to_code
, method
, code
);
4214 /* Commit changes since methods_loaded is accessed outside the lock */
4215 mono_memory_barrier ();
4217 amodule
->methods_loaded
[method_index
/ 32] |= 1 << (method_index
% 32);
4219 amodule_unlock (amodule
);
4221 if (MONO_PROFILER_ENABLED (jit_begin
) || MONO_PROFILER_ENABLED (jit_done
)) {
4225 method
= mono_get_method_checked (amodule
->assembly
->image
, token
, NULL
, NULL
, error
);
4229 MONO_PROFILER_RAISE (jit_begin
, (method
));
4230 jinfo
= mono_jit_info_table_find (domain
, code
);
4232 MONO_PROFILER_RAISE (jit_done
, (method
, jinfo
));
4244 /** find_aot_method_in_amodule
4246 * \param code_amodule The AOT module containing the code pointer
4247 * \param method The method to find the code index for
4248 * \param hash_full The hash for the method
4251 find_aot_method_in_amodule (MonoAotModule
*code_amodule
, MonoMethod
*method
, guint32 hash_full
)
4254 guint32 table_size
, entry_size
, hash
;
4255 guint32
*table
, *entry
;
4257 static guint32 n_extra_decodes
;
4259 // The AOT module containing the MonoMethod
4260 // The reference to the metadata amodule will differ among multiple dedup methods
4261 // which mangle to the same name but live in different assemblies. This leads to
4262 // the caching breaking. The solution seems to be to cache using the "metadata" amodule.
4263 MonoAotModule
*metadata_amodule
= m_class_get_image (method
->klass
)->aot_module
;
4265 if (!metadata_amodule
|| metadata_amodule
->out_of_date
|| !code_amodule
|| code_amodule
->out_of_date
)
4268 table_size
= code_amodule
->extra_method_table
[0];
4269 hash
= hash_full
% table_size
;
4270 table
= code_amodule
->extra_method_table
+ 1;
4273 entry
= &table
[hash
* entry_size
];
4280 guint32 key
= entry
[0];
4281 guint32 value
= entry
[1];
4282 guint32 next
= entry
[entry_size
- 1];
4286 p
= code_amodule
->blob
+ key
;
4289 amodule_lock (metadata_amodule
);
4290 if (!metadata_amodule
->method_ref_to_method
)
4291 metadata_amodule
->method_ref_to_method
= g_hash_table_new (NULL
, NULL
);
4292 m
= (MonoMethod
*)g_hash_table_lookup (metadata_amodule
->method_ref_to_method
, p
);
4293 amodule_unlock (metadata_amodule
);
4295 m
= decode_resolve_method_ref_with_target (code_amodule
, method
, p
, &p
, error
);
4296 mono_error_cleanup (error
); /* FIXME don't swallow the error */
4298 * Can't catche runtime invoke wrappers since it would break
4299 * the check in decode_method_ref_with_target ().
4301 if (m
&& m
->wrapper_type
!= MONO_WRAPPER_RUNTIME_INVOKE
) {
4302 amodule_lock (metadata_amodule
);
4303 g_hash_table_insert (metadata_amodule
->method_ref_to_method
, orig_p
, m
);
4304 amodule_unlock (metadata_amodule
);
4312 /* Methods decoded needlessly */
4314 //printf ("%d %s %s %p\n", n_extra_decodes, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE), orig_p);
4319 entry
= &table
[next
* entry_size
];
4324 if (index
!= 0xffffff)
4325 g_assert (index
< code_amodule
->info
.nmethods
);
4331 add_module_cb (gpointer key
, gpointer value
, gpointer user_data
)
4333 g_ptr_array_add ((GPtrArray
*)user_data
, value
);
4337 mono_aot_can_dedup (MonoMethod
*method
)
4340 /* Use a set of wrappers/instances which work */
4341 switch (method
->wrapper_type
) {
4342 case MONO_WRAPPER_RUNTIME_INVOKE
:
4343 case MONO_WRAPPER_UNKNOWN
:
4350 if (method
->is_inflated
&& !mono_method_is_generic_sharable_full (method
, TRUE
, FALSE
, FALSE
) &&
4351 !mini_is_gsharedvt_signature (mono_method_signature_internal (method
)) &&
4352 !mini_is_gsharedvt_klass (method
->klass
))
4357 gboolean not_normal_gshared
= method
->is_inflated
&& !mono_method_is_generic_sharable_full (method
, TRUE
, FALSE
, FALSE
);
4358 gboolean extra_method
= (method
->wrapper_type
!= MONO_WRAPPER_NONE
) || not_normal_gshared
;
4360 return extra_method
;
4368 * Try finding METHOD in the extra_method table in all AOT images.
4369 * Return its method index, or 0xffffff if not found. Set OUT_AMODULE to the AOT
4370 * module where the method was found.
4373 find_aot_method (MonoMethod
*method
, MonoAotModule
**out_amodule
)
4378 guint32 hash
= mono_aot_method_hash (method
);
4380 /* Try the place we expect to have moved the method only
4381 * We don't probe, as that causes hard-to-debug issues when we fail
4382 * to find the method */
4383 if (container_amodule
&& mono_aot_can_dedup (method
)) {
4384 *out_amodule
= container_amodule
;
4385 index
= find_aot_method_in_amodule (container_amodule
, method
, hash
);
4389 /* Try the method's module first */
4390 *out_amodule
= m_class_get_image (method
->klass
)->aot_module
;
4391 index
= find_aot_method_in_amodule (m_class_get_image (method
->klass
)->aot_module
, method
, hash
);
4392 if (index
!= 0xffffff)
4396 * Try all other modules.
4397 * This is needed because generic instances klass->image points to the image
4398 * containing the generic definition, but the native code is generated to the
4399 * AOT image which contains the reference.
4402 /* Make a copy to avoid doing the search inside the aot lock */
4403 modules
= g_ptr_array_new ();
4405 g_hash_table_foreach (aot_modules
, add_module_cb
, modules
);
4409 for (i
= 0; i
< modules
->len
; ++i
) {
4410 MonoAotModule
*amodule
= (MonoAotModule
*)g_ptr_array_index (modules
, i
);
4412 if (amodule
!= m_class_get_image (method
->klass
)->aot_module
)
4413 index
= find_aot_method_in_amodule (amodule
, method
, hash
);
4414 if (index
!= 0xffffff) {
4415 *out_amodule
= amodule
;
4420 g_ptr_array_free (modules
, TRUE
);
4426 mono_aot_find_method_index (MonoMethod
*method
)
4428 MonoAotModule
*out_amodule
;
4429 return find_aot_method (method
, &out_amodule
);
4433 init_method (MonoAotModule
*amodule
, guint32 method_index
, MonoMethod
*method
, MonoClass
*init_class
, MonoGenericContext
*context
, MonoError
*error
)
4435 MonoDomain
*domain
= mono_domain_get ();
4437 MonoClass
*klass_to_run_ctor
= NULL
;
4438 gboolean from_plt
= method
== NULL
;
4439 int pindex
, n_patches
;
4441 MonoJitInfo
*jinfo
= NULL
;
4442 guint8
*code
, *info
;
4446 code
= (guint8
*)amodule
->methods
[method_index
];
4447 info
= &amodule
->blob
[mono_aot_get_offset (amodule
->method_info_offsets
, method_index
)];
4451 //does the method's class has a cctor?
4452 if (decode_value (p
, &p
) == 1)
4453 klass_to_run_ctor
= decode_klass_ref (amodule
, p
, &p
, error
);
4457 //FIXME old code would use the class from @method if not null and ignore the one encoded. I don't know if we need to honor that -- @kumpera
4459 klass_to_run_ctor
= method
->klass
;
4461 n_patches
= decode_value (p
, &p
);
4464 MonoJumpInfo
*patches
;
4469 mp
= mono_mempool_new ();
4471 if ((gpointer
)code
>= amodule
->info
.jit_code_start
&& (gpointer
)code
<= amodule
->info
.jit_code_end
) {
4476 got
= amodule
->llvm_got
;
4480 patches
= load_patch_info (amodule
, mp
, n_patches
, llvm
, &got_slots
, p
, &p
);
4481 if (patches
== NULL
) {
4482 mono_mempool_destroy (mp
);
4486 for (pindex
= 0; pindex
< n_patches
; ++pindex
) {
4487 MonoJumpInfo
*ji
= &patches
[pindex
];
4491 * For SFLDA, we need to call resolve_patch_target () since the GOT slot could have
4492 * been initialized by load_method () for a static cctor before the cctor has
4493 * finished executing (#23242).
4495 if (!got
[got_slots
[pindex
]] || ji
->type
== MONO_PATCH_INFO_SFLDA
) {
4496 /* In llvm-only made, we might encounter shared methods */
4497 if (mono_llvm_only
&& ji
->type
== MONO_PATCH_INFO_METHOD
&& mono_method_check_context_used (ji
->data
.method
)) {
4499 ji
->data
.method
= mono_class_inflate_generic_method_checked (ji
->data
.method
, context
, error
);
4500 if (!mono_error_ok (error
)) {
4502 mono_mempool_destroy (mp
);
4506 /* This cannot be resolved in mono_resolve_patch_target () */
4507 if (ji
->type
== MONO_PATCH_INFO_AOT_JIT_INFO
) {
4508 // FIXME: Lookup using the index
4509 jinfo
= mono_aot_find_jit_info (domain
, amodule
->assembly
->image
, code
);
4510 ji
->type
= MONO_PATCH_INFO_ABS
;
4511 ji
->data
.target
= jinfo
;
4513 addr
= mono_resolve_patch_target (method
, domain
, code
, ji
, TRUE
, error
);
4514 if (!mono_error_ok (error
)) {
4516 mono_mempool_destroy (mp
);
4519 if (ji
->type
== MONO_PATCH_INFO_METHOD_JUMP
)
4520 addr
= mono_create_ftnptr (domain
, addr
);
4521 mono_memory_barrier ();
4522 got
[got_slots
[pindex
]] = addr
;
4523 if (ji
->type
== MONO_PATCH_INFO_METHOD_JUMP
)
4524 register_jump_target_got_slot (domain
, ji
->data
.method
, &(got
[got_slots
[pindex
]]));
4526 ji
->type
= MONO_PATCH_INFO_NONE
;
4531 mono_mempool_destroy (mp
);
4534 if (mini_get_debug_options ()->load_aot_jit_info_eagerly
)
4535 jinfo
= mono_aot_find_jit_info (domain
, amodule
->assembly
->image
, code
);
4540 MonoVTable
*vt
= mono_class_vtable_checked (domain
, init_class
, error
);
4544 inited_ok
= mono_runtime_class_init_full (vt
, error
);
4545 } else if (from_plt
&& klass_to_run_ctor
&& !mono_class_is_gtd (klass_to_run_ctor
)) {
4546 MonoVTable
*vt
= mono_class_vtable_checked (domain
, klass_to_run_ctor
, error
);
4550 inited_ok
= mono_runtime_class_init_full (vt
, error
);
4565 init_llvmonly_method (MonoAotModule
*amodule
, guint32 method_index
, MonoMethod
*method
, MonoClass
*init_class
, MonoGenericContext
*context
)
4570 res
= init_method (amodule
, method_index
, method
, init_class
, context
, error
);
4571 if (!res
|| !is_ok (error
)) {
4572 MonoException
*ex
= mono_error_convert_to_exception (error
);
4573 /* Its okay to raise in llvmonly mode */
4575 mono_llvm_throw_exception ((MonoObject
*)ex
);
4580 mono_aot_init_llvm_method (gpointer aot_module
, guint32 method_index
)
4582 MonoAotModule
*amodule
= (MonoAotModule
*)aot_module
;
4584 init_llvmonly_method (amodule
, method_index
, NULL
, NULL
, NULL
);
4588 mono_aot_init_gshared_method_this (gpointer aot_module
, guint32 method_index
, MonoObject
*this_obj
)
4590 MonoAotModule
*amodule
= (MonoAotModule
*)aot_module
;
4592 MonoGenericContext
*context
;
4596 g_assert (this_obj
);
4597 klass
= this_obj
->vtable
->klass
;
4600 * We can't obtain the context from THIS_OBJ since it can point to a child class etc., so
4601 * we depend on these methods to be called indirectly which causes them to be added
4604 amodule_lock (amodule
);
4605 method
= (MonoMethod
*)g_hash_table_lookup (amodule
->extra_methods
, GUINT_TO_POINTER (method_index
));
4606 amodule_unlock (amodule
);
4609 context
= mono_method_get_context (method
);
4612 init_llvmonly_method (amodule
, method_index
, NULL
, klass
, context
);
4616 mono_aot_init_gshared_method_mrgctx (gpointer aot_module
, guint32 method_index
, MonoMethodRuntimeGenericContext
*rgctx
)
4618 MonoAotModule
*amodule
= (MonoAotModule
*)aot_module
;
4619 MonoGenericContext context
= { NULL
, NULL
};
4620 MonoClass
*klass
= rgctx
->class_vtable
->klass
;
4622 if (mono_class_is_ginst (klass
))
4623 context
.class_inst
= mono_class_get_generic_class (klass
)->context
.class_inst
;
4624 else if (mono_class_is_gtd (klass
))
4625 context
.class_inst
= mono_class_get_generic_container (klass
)->context
.class_inst
;
4626 context
.method_inst
= rgctx
->method_inst
;
4628 init_llvmonly_method (amodule
, method_index
, NULL
, rgctx
->class_vtable
->klass
, &context
);
4632 mono_aot_init_gshared_method_vtable (gpointer aot_module
, guint32 method_index
, MonoVTable
*vtable
)
4634 MonoAotModule
*amodule
= (MonoAotModule
*)aot_module
;
4636 MonoGenericContext
*context
;
4639 klass
= vtable
->klass
;
4641 amodule_lock (amodule
);
4642 method
= (MonoMethod
*)g_hash_table_lookup (amodule
->extra_methods
, GUINT_TO_POINTER (method_index
));
4643 amodule_unlock (amodule
);
4646 context
= mono_method_get_context (method
);
4649 init_llvmonly_method (amodule
, method_index
, NULL
, klass
, context
);
4653 * mono_aot_get_method:
4655 * Return a pointer to the AOTed native code for METHOD if it can be found,
4657 * On platforms with function pointers, this doesn't return a function pointer.
4660 mono_aot_get_method (MonoDomain
*domain
, MonoMethod
*method
, MonoError
*error
)
4662 MonoClass
*klass
= method
->klass
;
4663 MonoMethod
*orig_method
= method
;
4664 guint32 method_index
;
4665 MonoAotModule
*amodule
= m_class_get_image (klass
)->aot_module
;
4667 gboolean cache_result
= FALSE
;
4668 ERROR_DECL_VALUE (inner_error
);
4672 if (domain
!= mono_get_root_domain ())
4673 /* Non shared AOT code can't be used in other appdomains */
4676 if (enable_aot_cache
&& !amodule
&& domain
->entry_assembly
&& m_class_get_image (klass
) == mono_defaults
.corlib
) {
4677 /* This cannot be AOTed during startup, so do it now */
4678 if (!mscorlib_aot_loaded
) {
4679 mscorlib_aot_loaded
= TRUE
;
4680 load_aot_module (m_class_get_image (klass
)->assembly
, NULL
);
4681 amodule
= m_class_get_image (klass
)->aot_module
;
4688 if (amodule
->out_of_date
)
4691 if ((method
->iflags
& METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL
) ||
4692 (method
->flags
& METHOD_ATTRIBUTE_PINVOKE_IMPL
) ||
4693 (method
->iflags
& METHOD_IMPL_ATTRIBUTE_RUNTIME
) ||
4694 (method
->flags
& METHOD_ATTRIBUTE_ABSTRACT
))
4698 * Use the original method instead of its invoke-with-check wrapper.
4699 * This is not a problem when using full-aot, since it doesn't support
4702 if (mono_aot_only
&& method
->wrapper_type
== MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK
)
4703 return mono_aot_get_method (domain
, mono_marshal_method_from_wrapper (method
), error
);
4705 g_assert (m_class_is_inited (klass
));
4707 /* Find method index */
4708 method_index
= 0xffffff;
4710 gboolean dedupable
= mono_aot_can_dedup (method
);
4712 if (method
->is_inflated
&& !method
->wrapper_type
&& mono_method_is_generic_sharable_full (method
, TRUE
, FALSE
, FALSE
) && !dedupable
) {
4713 MonoMethod
*orig_method
= method
;
4715 * For generic methods, we store the fully shared instance in place of the
4718 method
= mono_method_get_declaring_generic_method (method
);
4719 method_index
= mono_metadata_token_index (method
->token
) - 1;
4721 if (mono_llvm_only
) {
4722 /* Needed by mono_aot_init_gshared_method_this () */
4723 /* orig_method is a random instance but it is enough to make init_method () work */
4724 amodule_lock (amodule
);
4725 g_hash_table_insert (amodule
->extra_methods
, GUINT_TO_POINTER (method_index
), orig_method
);
4726 amodule_unlock (amodule
);
4730 if (method_index
== 0xffffff && (method
->is_inflated
|| !method
->token
)) {
4731 /* This hash table is used to avoid the slower search in the extra_method_table in the AOT image */
4732 amodule_lock (amodule
);
4733 code
= (guint8
*)g_hash_table_lookup (amodule
->method_to_code
, method
);
4734 amodule_unlock (amodule
);
4738 cache_result
= TRUE
;
4739 if (method_index
== 0xffffff)
4740 method_index
= find_aot_method (method
, &amodule
);
4743 * Special case the ICollection<T> wrappers for arrays, as they cannot
4744 * be statically enumerated, and each wrapper ends up calling the same
4747 if (method_index
== 0xffffff && method
->wrapper_type
== MONO_WRAPPER_MANAGED_TO_MANAGED
&& m_class_get_rank (method
->klass
) && strstr (method
->name
, "System.Collections.Generic")) {
4748 MonoMethod
*m
= mono_aot_get_array_helper_from_wrapper (method
);
4750 code
= (guint8
*)mono_aot_get_method (domain
, m
, &inner_error
);
4751 mono_error_cleanup (&inner_error
);
4757 * Special case Array.GetGenericValueImpl which is a generic icall.
4758 * Generic sharing currently can't handle it, but the icall returns data using
4759 * an out parameter, so the managed-to-native wrappers can share the same code.
4761 if (method_index
== 0xffffff && method
->wrapper_type
== MONO_WRAPPER_MANAGED_TO_NATIVE
&& method
->klass
== mono_defaults
.array_class
&& !strcmp (method
->name
, "GetGenericValueImpl")) {
4763 MonoGenericContext ctx
;
4764 MonoType
*args
[16];
4766 if (mono_method_signature_internal (method
)->params
[1]->type
== MONO_TYPE_OBJECT
)
4767 /* Avoid recursion */
4770 m
= mono_class_get_method_from_name_checked (mono_defaults
.array_class
, "GetGenericValueImpl", 2, 0, error
);
4771 mono_error_assert_ok (error
);
4774 memset (&ctx
, 0, sizeof (ctx
));
4775 args
[0] = m_class_get_byval_arg (mono_defaults
.object_class
);
4776 ctx
.method_inst
= mono_metadata_get_generic_inst (1, args
);
4778 m
= mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m
, &ctx
, error
), TRUE
, TRUE
);
4780 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error
)); /* FIXME don't swallow the error */
4783 * Get the code for the <object> instantiation which should be emitted into
4784 * the mscorlib aot image by the AOT compiler.
4786 code
= (guint8
*)mono_aot_get_method (domain
, m
, &inner_error
);
4787 mono_error_cleanup (&inner_error
);
4792 const char *klass_name_space
= m_class_get_name_space (method
->klass
);
4793 const char *klass_name
= m_class_get_name (method
->klass
);
4794 /* Same for CompareExchange<T> and Exchange<T> */
4795 /* Same for Volatile.Read<T>/Write<T> */
4796 if (method_index
== 0xffffff && method
->wrapper_type
== MONO_WRAPPER_MANAGED_TO_NATIVE
&& m_class_get_image (method
->klass
) == mono_defaults
.corlib
&&
4797 ((!strcmp (klass_name_space
, "System.Threading") && !strcmp (klass_name
, "Interlocked") && (!strcmp (method
->name
, "CompareExchange") || !strcmp (method
->name
, "Exchange")) && MONO_TYPE_IS_REFERENCE (mini_type_get_underlying_type (mono_method_signature_internal (method
)->params
[1]))) ||
4798 (!strcmp (klass_name_space
, "System.Threading") && !strcmp (klass_name
, "Volatile") && (!strcmp (method
->name
, "Read") && MONO_TYPE_IS_REFERENCE (mini_type_get_underlying_type (mono_method_signature_internal (method
)->ret
)))) ||
4799 (!strcmp (klass_name_space
, "System.Threading") && !strcmp (klass_name
, "Volatile") && (!strcmp (method
->name
, "Write") && MONO_TYPE_IS_REFERENCE (mini_type_get_underlying_type (mono_method_signature_internal (method
)->params
[1])))))) {
4801 MonoGenericContext ctx
;
4802 MonoType
*args
[16];
4803 gpointer iter
= NULL
;
4805 while ((m
= mono_class_get_methods (method
->klass
, &iter
))) {
4806 if (mono_method_signature_internal (m
)->generic_param_count
&& !strcmp (m
->name
, method
->name
))
4811 memset (&ctx
, 0, sizeof (ctx
));
4812 args
[0] = mono_get_object_type ();
4813 ctx
.method_inst
= mono_metadata_get_generic_inst (1, args
);
4815 m
= mono_marshal_get_native_wrapper (mono_class_inflate_generic_method_checked (m
, &ctx
, error
), TRUE
, TRUE
);
4817 g_error ("AOT runtime could not load method due to %s", mono_error_get_message (error
)); /* FIXME don't swallow the error */
4819 /* Avoid recursion */
4824 * Get the code for the <object> instantiation which should be emitted into
4825 * the mscorlib aot image by the AOT compiler.
4827 code
= (guint8
*)mono_aot_get_method (domain
, m
, &inner_error
);
4828 mono_error_cleanup (&inner_error
);
4833 /* For ARRAY_ACCESSOR wrappers with reference types, use the <object> instantiation saved in corlib */
4834 if (method_index
== 0xffffff && method
->wrapper_type
== MONO_WRAPPER_UNKNOWN
) {
4835 WrapperInfo
*info
= mono_marshal_get_wrapper_info (method
);
4837 if (info
->subtype
== WRAPPER_SUBTYPE_ARRAY_ACCESSOR
) {
4838 MonoMethod
*array_method
= info
->d
.array_accessor
.method
;
4839 if (MONO_TYPE_IS_REFERENCE (m_class_get_byval_arg (m_class_get_element_class (array_method
->klass
)))) {
4842 if (!strcmp (array_method
->name
, "Set"))
4843 rank
= mono_method_signature_internal (array_method
)->param_count
- 1;
4844 else if (!strcmp (array_method
->name
, "Get") || !strcmp (array_method
->name
, "Address"))
4845 rank
= mono_method_signature_internal (array_method
)->param_count
;
4847 g_assert_not_reached ();
4848 MonoClass
*obj_array_class
= mono_class_create_array (mono_defaults
.object_class
, rank
);
4849 MonoMethod
*m
= mono_class_get_method_from_name_checked (obj_array_class
, array_method
->name
, mono_method_signature_internal (array_method
)->param_count
, 0, error
);
4850 mono_error_assert_ok (error
);
4853 m
= mono_marshal_get_array_accessor_wrapper (m
);
4855 code
= (guint8
*)mono_aot_get_method (domain
, m
, &inner_error
);
4856 mono_error_cleanup (&inner_error
);
4864 if (method_index
== 0xffffff && method
->is_inflated
&& mono_method_is_generic_sharable_full (method
, FALSE
, TRUE
, FALSE
)) {
4865 /* Partial sharing */
4868 shared
= mini_get_shared_method_full (method
, SHARE_MODE_NONE
, error
);
4869 return_val_if_nok (error
, NULL
);
4871 method_index
= find_aot_method (shared
, &amodule
);
4872 if (method_index
!= 0xffffff)
4876 if (method_index
== 0xffffff && method
->is_inflated
&& mono_method_is_generic_sharable_full (method
, FALSE
, FALSE
, TRUE
)) {
4879 /* Use the all-vt shared method since this is what was AOTed */
4880 shared
= mini_get_shared_method_full (method
, SHARE_MODE_GSHAREDVT
, error
);
4884 method_index
= find_aot_method (shared
, &amodule
);
4885 if (method_index
!= 0xffffff) {
4886 method
= mini_get_shared_method_full (method
, SHARE_MODE_GSHAREDVT
, error
);
4892 if (method_index
== 0xffffff) {
4893 if (mono_trace_is_traced (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
)) {
4896 full_name
= mono_method_full_name (method
, TRUE
);
4897 mono_trace (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
, "AOT NOT FOUND: %s.", full_name
);
4903 if (method_index
== 0xffffff)
4906 /* Needed by find_jit_info */
4907 amodule_lock (amodule
);
4908 g_hash_table_insert (amodule
->extra_methods
, GUINT_TO_POINTER (method_index
), method
);
4909 amodule_unlock (amodule
);
4912 method_index
= mono_metadata_token_index (method
->token
) - 1;
4914 guint32 num_methods
= amodule
->info
.nmethods
- amodule
->info
.nextra_methods
;
4915 if (method_index
>= num_methods
)
4916 /* method not available in AOT image */
4920 code
= (guint8
*)load_method (domain
, amodule
, m_class_get_image (klass
), method
, method
->token
, method_index
, error
);
4923 if (code
&& cache_result
) {
4924 amodule_lock (amodule
);
4925 g_hash_table_insert (amodule
->method_to_code
, orig_method
, code
);
4926 amodule_unlock (amodule
);
4932 * Same as mono_aot_get_method, but we try to avoid loading any metadata from the
4936 mono_aot_get_method_from_token (MonoDomain
*domain
, MonoImage
*image
, guint32 token
, MonoError
*error
)
4938 MonoAotModule
*aot_module
= image
->aot_module
;
4947 method_index
= mono_metadata_token_index (token
) - 1;
4949 res
= load_method (domain
, aot_module
, image
, NULL
, token
, method_index
, error
);
4956 } IsGotEntryUserData
;
4959 check_is_got_entry (gpointer key
, gpointer value
, gpointer user_data
)
4961 IsGotEntryUserData
*data
= (IsGotEntryUserData
*)user_data
;
4962 MonoAotModule
*aot_module
= (MonoAotModule
*)value
;
4964 if (aot_module
->got
&& (data
->addr
>= (guint8
*)(aot_module
->got
)) && (data
->addr
< (guint8
*)(aot_module
->got
+ aot_module
->info
.got_size
)))
4969 mono_aot_is_got_entry (guint8
*code
, guint8
*addr
)
4971 IsGotEntryUserData user_data
;
4976 user_data
.addr
= addr
;
4977 user_data
.res
= FALSE
;
4979 g_hash_table_foreach (aot_modules
, check_is_got_entry
, &user_data
);
4982 return user_data
.res
;
4987 MonoAotModule
*module
;
4988 } FindAotModuleUserData
;
4991 find_aot_module_cb (gpointer key
, gpointer value
, gpointer user_data
)
4993 FindAotModuleUserData
*data
= (FindAotModuleUserData
*)user_data
;
4994 MonoAotModule
*aot_module
= (MonoAotModule
*)value
;
4996 if (amodule_contains_code_addr (aot_module
, data
->addr
))
4997 data
->module
= aot_module
;
5000 static inline MonoAotModule
*
5001 find_aot_module (guint8
*code
)
5003 FindAotModuleUserData user_data
;
5008 /* Reading these need no locking */
5009 if (((gsize
)code
< aot_code_low_addr
) || ((gsize
)code
> aot_code_high_addr
))
5012 user_data
.addr
= code
;
5013 user_data
.module
= NULL
;
5016 g_hash_table_foreach (aot_modules
, find_aot_module_cb
, &user_data
);
5019 return user_data
.module
;
5023 mono_aot_patch_plt_entry (guint8
*code
, guint8
*plt_entry
, gpointer
*got
, host_mgreg_t
*regs
, guint8
*addr
)
5025 MonoAotModule
*amodule
;
5028 * Since AOT code is only used in the root domain,
5029 * mono_domain_get () != mono_get_root_domain () means the calling method
5030 * is AppDomain:InvokeInDomain, so this is the same check as in
5031 * mono_method_same_domain () but without loading the metadata for the method.
5033 if (mono_domain_get () == mono_get_root_domain ()) {
5035 amodule
= find_aot_module (code
);
5039 mono_arch_patch_plt_entry (plt_entry
, got
, regs
, addr
);
5044 * mono_aot_plt_resolve:
5046 * This function is called by the entries in the PLT to resolve the actual method that
5047 * needs to be called. It returns a trampoline to the method and patches the PLT entry.
5048 * Returns NULL if the something cannot be loaded.
5051 mono_aot_plt_resolve (gpointer aot_module
, guint32 plt_info_offset
, guint8
*code
, MonoError
*error
)
5053 #ifdef MONO_ARCH_AOT_SUPPORTED
5054 guint8
*p
, *target
, *plt_entry
;
5056 MonoAotModule
*module
= (MonoAotModule
*)aot_module
;
5057 gboolean res
, no_ftnptr
= FALSE
;
5059 gboolean using_gsharedvt
= FALSE
;
5063 //printf ("DYN: %p %d\n", aot_module, plt_info_offset);
5065 p
= &module
->blob
[plt_info_offset
];
5067 ji
.type
= (MonoJumpInfoType
)decode_value (p
, &p
);
5069 mp
= mono_mempool_new ();
5070 res
= decode_patch (module
, mp
, &ji
, p
, &p
);
5073 mono_mempool_destroy (mp
);
5077 #ifdef MONO_ARCH_GSHAREDVT_SUPPORTED
5078 using_gsharedvt
= TRUE
;
5082 * Avoid calling resolve_patch_target in the full-aot case if possible, since
5083 * it would create a trampoline, and we don't need that.
5084 * We could do this only if the method does not need the special handling
5085 * in mono_magic_trampoline ().
5087 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
) &&
5088 !mono_method_needs_static_rgctx_invoke (ji
.data
.method
, FALSE
) && !using_gsharedvt
) {
5089 target
= (guint8
*)mono_jit_compile_method (ji
.data
.method
, error
);
5090 if (!mono_error_ok (error
)) {
5091 mono_mempool_destroy (mp
);
5096 target
= (guint8
*)mono_resolve_patch_target (NULL
, mono_domain_get (), NULL
, &ji
, TRUE
, error
);
5097 if (!mono_error_ok (error
)) {
5098 mono_mempool_destroy (mp
);
5104 * The trampoline expects us to return a function descriptor on platforms which use
5105 * it, but resolve_patch_target returns a direct function pointer for some type of
5106 * patches, so have to translate between the two.
5107 * FIXME: Clean this up, but how ?
5109 if (ji
.type
== MONO_PATCH_INFO_ABS
|| ji
.type
== MONO_PATCH_INFO_INTERNAL_METHOD
|| ji
.type
== MONO_PATCH_INFO_ICALL_ADDR
|| ji
.type
== MONO_PATCH_INFO_JIT_ICALL_ADDR
|| ji
.type
== MONO_PATCH_INFO_RGCTX_FETCH
) {
5110 /* These should already have a function descriptor */
5111 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
5112 /* Our function descriptors have a 0 environment, gcc created ones don't */
5113 if (ji
.type
!= MONO_PATCH_INFO_INTERNAL_METHOD
&& ji
.type
!= MONO_PATCH_INFO_JIT_ICALL_ADDR
&& ji
.type
!= MONO_PATCH_INFO_ICALL_ADDR
)
5114 g_assert (((gpointer
*)target
) [2] == 0);
5117 } else if (!no_ftnptr
) {
5118 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
5119 g_assert (((gpointer
*)target
) [2] != 0);
5121 target
= (guint8
*)mono_create_ftnptr (mono_domain_get (), target
);
5124 mono_mempool_destroy (mp
);
5126 /* Patch the PLT entry with target which might be the actual method not a trampoline */
5127 plt_entry
= mono_aot_get_plt_entry (code
);
5128 g_assert (plt_entry
);
5129 mono_aot_patch_plt_entry (code
, plt_entry
, module
->got
, NULL
, target
);
5133 g_assert_not_reached ();
5141 * Initialize the PLT table of the AOT module. Called lazily when the first AOT
5142 * method in the module is loaded to avoid committing memory by writing to it.
5143 * LOCKING: Assumes the AMODULE lock is held.
5146 init_plt (MonoAotModule
*amodule
)
5151 if (amodule
->plt_inited
)
5154 if (amodule
->info
.plt_size
<= 1) {
5155 amodule
->plt_inited
= TRUE
;
5159 tramp
= mono_create_specific_trampoline (amodule
, MONO_TRAMPOLINE_AOT_PLT
, mono_get_root_domain (), NULL
);
5162 * Initialize the PLT entries in the GOT to point to the default targets.
5165 tramp
= mono_create_ftnptr (mono_domain_get (), tramp
);
5166 for (i
= 1; i
< amodule
->info
.plt_size
; ++i
)
5167 /* All the default entries point to the AOT trampoline */
5168 ((gpointer
*)amodule
->got
)[amodule
->info
.plt_got_offset_base
+ i
] = tramp
;
5170 amodule
->plt_inited
= TRUE
;
5174 * mono_aot_get_plt_entry:
5176 * Return the address of the PLT entry called by the code at CODE if exists.
5179 mono_aot_get_plt_entry (guint8
*code
)
5181 MonoAotModule
*amodule
= find_aot_module (code
);
5182 guint8
*target
= NULL
;
5188 if (is_thumb_code (amodule
, code
- 4))
5189 return mono_arm_get_thumb_plt_entry (code
);
5192 #ifdef MONO_ARCH_AOT_SUPPORTED
5193 target
= mono_arch_get_call_target (code
);
5195 g_assert_not_reached ();
5199 while (target
!= NULL
) {
5200 if ((target
>= (guint8
*)(amodule
->plt
)) && (target
< (guint8
*)(amodule
->plt_end
)))
5203 // Add 4 since mono_arch_get_call_target assumes we're passing
5204 // the instruction after the actual branch instruction.
5205 target
= mono_arch_get_call_target (target
+ 4);
5210 if ((target
>= (guint8
*)(amodule
->plt
)) && (target
< (guint8
*)(amodule
->plt_end
)))
5218 * mono_aot_get_plt_info_offset:
5220 * Return the PLT info offset belonging to the plt entry called by CODE.
5223 mono_aot_get_plt_info_offset (host_mgreg_t
*regs
, guint8
*code
)
5225 guint8
*plt_entry
= mono_aot_get_plt_entry (code
);
5227 g_assert (plt_entry
);
5229 /* The offset is embedded inside the code after the plt entry */
5230 #ifdef MONO_ARCH_AOT_SUPPORTED
5231 return mono_arch_get_plt_info_offset (plt_entry
, regs
, code
);
5233 g_assert_not_reached ();
5239 mono_create_ftnptr_malloc (guint8
*code
)
5241 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
5242 MonoPPCFunctionDescriptor
*ftnptr
= g_malloc0 (sizeof (MonoPPCFunctionDescriptor
));
5244 ftnptr
->code
= code
;
5255 * mono_aot_register_jit_icall:
5257 * Register a JIT icall which is called by trampolines in full-aot mode. This should
5258 * be called from mono_arch_init () during startup.
5261 mono_aot_register_jit_icall (const char *name
, gpointer addr
)
5263 /* No need for locking */
5264 if (!aot_jit_icall_hash
)
5265 aot_jit_icall_hash
= g_hash_table_new (g_str_hash
, g_str_equal
);
5266 g_hash_table_insert (aot_jit_icall_hash
, (char*)name
, addr
);
5270 * load_function_full:
5272 * Load the function named NAME from the aot image.
5275 load_function_full (MonoAotModule
*amodule
, const char *name
, MonoTrampInfo
**out_tinfo
)
5279 int n_patches
, pindex
;
5282 guint32 info_offset
;
5286 symbol
= g_strdup_printf ("%s", name
);
5287 find_amodule_symbol (amodule
, symbol
, (gpointer
*)&code
);
5290 g_error ("Symbol '%s' not found in AOT file '%s'.\n", name
, amodule
->aot_name
);
5292 mono_trace (G_LOG_LEVEL_DEBUG
, MONO_TRACE_AOT
, "AOT: FOUND function '%s' in AOT file '%s'.", name
, amodule
->aot_name
);
5296 symbol
= g_strdup_printf ("%s_p", name
);
5297 find_amodule_symbol (amodule
, symbol
, (gpointer
*)&p
);
5300 /* Nothing to patch */
5303 info_offset
= *(guint32
*)p
;
5305 MonoTrampInfo
*tinfo
;
5306 guint32 code_size
, uw_info_len
, uw_offset
;
5308 /* Construct a MonoTrampInfo from the data in the AOT image */
5310 p
+= sizeof (guint32
);
5311 code_size
= *(guint32
*)p
;
5312 p
+= sizeof (guint32
);
5313 uw_offset
= *(guint32
*)p
;
5314 uw_info
= amodule
->unwind_info
+ uw_offset
;
5315 uw_info_len
= decode_value (uw_info
, &uw_info
);
5317 tinfo
= g_new0 (MonoTrampInfo
, 1);
5318 tinfo
->code
= (guint8
*)code
;
5319 tinfo
->code_size
= code_size
;
5320 tinfo
->uw_info_len
= uw_info_len
;
5322 tinfo
->uw_info
= uw_info
;
5327 p
= amodule
->blob
+ info_offset
;
5329 /* Similar to mono_aot_load_method () */
5331 n_patches
= decode_value (p
, &p
);
5334 MonoJumpInfo
*patches
;
5337 mp
= mono_mempool_new ();
5339 patches
= load_patch_info (amodule
, mp
, n_patches
, FALSE
, &got_slots
, p
, &p
);
5342 for (pindex
= 0; pindex
< n_patches
; ++pindex
) {
5343 MonoJumpInfo
*ji
= &patches
[pindex
];
5347 if (amodule
->got
[got_slots
[pindex
]])
5351 * When this code is executed, the runtime may not be initalized yet, so
5352 * resolve the patch info by hand.
5354 if (ji
->type
== MONO_PATCH_INFO_JIT_ICALL_ADDR
) {
5355 if (!strcmp (ji
->data
.name
, "mono_get_lmf_addr")) {
5356 target
= (gpointer
)mono_get_lmf_addr
;
5357 } else if (!strcmp (ji
->data
.name
, "mono_thread_force_interruption_checkpoint_noraise")) {
5358 target
= (gpointer
)mono_thread_force_interruption_checkpoint_noraise
;
5359 } else if (!strcmp (ji
->data
.name
, "mono_exception_from_token")) {
5360 target
= (gpointer
)mono_exception_from_token
;
5361 } else if (!strcmp (ji
->data
.name
, "mono_throw_exception")) {
5362 target
= (gpointer
)mono_get_throw_exception ();
5363 } else if (!strcmp (ji
->data
.name
, "mono_rethrow_preserve_exception")) {
5364 target
= (gpointer
)mono_get_rethrow_preserve_exception ();
5365 } else if (strstr (ji
->data
.name
, "trampoline_func_") == ji
->data
.name
) {
5366 MonoTrampolineType tramp_type2
= (MonoTrampolineType
)atoi (ji
->data
.name
+ strlen ("trampoline_func_"));
5367 target
= (gpointer
)mono_get_trampoline_func (tramp_type2
);
5368 } else if (strstr (ji
->data
.name
, "specific_trampoline_lazy_fetch_") == ji
->data
.name
) {
5369 /* atoll is needed because the the offset is unsigned */
5373 res
= sscanf (ji
->data
.name
, "specific_trampoline_lazy_fetch_%u", &slot
);
5374 g_assert (res
== 1);
5375 target
= mono_create_specific_trampoline (GUINT_TO_POINTER (slot
), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH
, mono_get_root_domain (), NULL
);
5376 target
= mono_create_ftnptr_malloc ((guint8
*)target
);
5377 } else if (!strcmp (ji
->data
.name
, "debugger_agent_single_step_from_context")) {
5378 target
= (gpointer
)mini_get_dbg_callbacks ()->single_step_from_context
;
5379 } else if (!strcmp (ji
->data
.name
, "debugger_agent_breakpoint_from_context")) {
5380 target
= (gpointer
)mini_get_dbg_callbacks ()->breakpoint_from_context
;
5381 } else if (!strcmp (ji
->data
.name
, "throw_exception_addr")) {
5382 target
= mono_get_throw_exception_addr ();
5383 } else if (!strcmp (ji
->data
.name
, "rethrow_preserve_exception_addr")) {
5384 target
= mono_get_rethrow_preserve_exception_addr ();
5385 } else if (strstr (ji
->data
.name
, "generic_trampoline_")) {
5386 target
= mono_aot_get_trampoline (ji
->data
.name
);
5387 } else if (aot_jit_icall_hash
&& g_hash_table_lookup (aot_jit_icall_hash
, ji
->data
.name
)) {
5388 /* Registered by mono_arch_init () */
5389 target
= g_hash_table_lookup (aot_jit_icall_hash
, ji
->data
.name
);
5391 fprintf (stderr
, "Unknown relocation '%s'\n", ji
->data
.name
);
5392 g_assert_not_reached ();
5396 /* Hopefully the code doesn't have patches which need method or
5399 target
= mono_resolve_patch_target (NULL
, NULL
, (guint8
*)code
, ji
, FALSE
, error
);
5400 mono_error_assert_ok (error
);
5404 amodule
->got
[got_slots
[pindex
]] = target
;
5409 mono_mempool_destroy (mp
);
5416 load_function (MonoAotModule
*amodule
, const char *name
)
5418 return load_function_full (amodule
, name
, NULL
);
5421 static MonoAotModule
*
5422 get_mscorlib_aot_module (void)
5425 MonoAotModule
*amodule
;
5427 image
= mono_defaults
.corlib
;
5429 amodule
= image
->aot_module
;
5431 amodule
= mscorlib_aot_module
;
5437 no_trampolines (void)
5439 g_assert_not_reached ();
5443 * Return the trampoline identified by NAME from the mscorlib AOT file.
5444 * On ppc64, this returns a function descriptor.
5447 mono_aot_get_trampoline_full (const char *name
, MonoTrampInfo
**out_tinfo
)
5449 MonoAotModule
*amodule
= get_mscorlib_aot_module ();
5451 if (mono_llvm_only
) {
5453 return (gpointer
)no_trampolines
;
5456 return mono_create_ftnptr_malloc ((guint8
*)load_function_full (amodule
, name
, out_tinfo
));
5460 (mono_aot_get_trampoline
) (const char *name
)
5462 MonoTrampInfo
*out_tinfo
;
5465 code
= mono_aot_get_trampoline_full (name
, &out_tinfo
);
5466 mono_aot_tramp_info_register (out_tinfo
, NULL
);
5472 read_unwind_info (MonoAotModule
*amodule
, MonoTrampInfo
*info
, const char *symbol_name
)
5474 gpointer symbol_addr
;
5475 guint32 uw_offset
, uw_info_len
;
5478 find_amodule_symbol (amodule
, symbol_name
, &symbol_addr
);
5483 uw_offset
= *(guint32
*)symbol_addr
;
5484 uw_info
= amodule
->unwind_info
+ uw_offset
;
5485 uw_info_len
= decode_value (uw_info
, &uw_info
);
5487 info
->uw_info_len
= uw_info_len
;
5489 info
->uw_info
= uw_info
;
5491 info
->uw_info
= NULL
;
5493 /* If successful return the address of the following data */
5494 return (guint32
*)symbol_addr
+ 1;
5498 #include <mach/mach.h>
5500 static TrampolinePage
* trampoline_pages
[MONO_AOT_TRAMP_NUM
];
5503 read_page_trampoline_uwinfo (MonoTrampInfo
*info
, int tramp_type
, gboolean is_generic
)
5505 char symbol_name
[128];
5507 if (tramp_type
== MONO_AOT_TRAMP_SPECIFIC
)
5508 sprintf (symbol_name
, "specific_trampolines_page_%s_p", is_generic
? "gen" : "sp");
5509 else if (tramp_type
== MONO_AOT_TRAMP_STATIC_RGCTX
)
5510 sprintf (symbol_name
, "rgctx_trampolines_page_%s_p", is_generic
? "gen" : "sp");
5511 else if (tramp_type
== MONO_AOT_TRAMP_IMT
)
5512 sprintf (symbol_name
, "imt_trampolines_page_%s_p", is_generic
? "gen" : "sp");
5513 else if (tramp_type
== MONO_AOT_TRAMP_GSHAREDVT_ARG
)
5514 sprintf (symbol_name
, "gsharedvt_trampolines_page_%s_p", is_generic
? "gen" : "sp");
5515 else if (tramp_type
== MONO_AOT_TRAMP_UNBOX_ARBITRARY
)
5516 sprintf (symbol_name
, "unbox_arbitrary_trampolines_page_%s_p", is_generic
? "gen" : "sp");
5518 g_assert_not_reached ();
5520 read_unwind_info (mono_defaults
.corlib
->aot_module
, info
, symbol_name
);
5523 static unsigned char*
5524 get_new_trampoline_from_page (int tramp_type
)
5526 MonoAotModule
*amodule
;
5528 TrampolinePage
*page
;
5531 vm_address_t addr
, taddr
;
5533 vm_prot_t prot
, max_prot
;
5534 int psize
, specific_trampoline_size
;
5535 unsigned char *code
;
5537 specific_trampoline_size
= 2 * sizeof (gpointer
);
5539 mono_aot_page_lock ();
5540 page
= trampoline_pages
[tramp_type
];
5541 if (page
&& page
->trampolines
< page
->trampolines_end
) {
5542 code
= page
->trampolines
;
5543 page
->trampolines
+= specific_trampoline_size
;
5544 mono_aot_page_unlock ();
5547 mono_aot_page_unlock ();
5548 /* the trampoline template page is in the mscorlib module */
5549 image
= mono_defaults
.corlib
;
5552 psize
= MONO_AOT_TRAMP_PAGE_SIZE
;
5554 amodule
= image
->aot_module
;
5557 if (tramp_type
== MONO_AOT_TRAMP_SPECIFIC
)
5558 tpage
= load_function (amodule
, "specific_trampolines_page");
5559 else if (tramp_type
== MONO_AOT_TRAMP_STATIC_RGCTX
)
5560 tpage
= load_function (amodule
, "rgctx_trampolines_page");
5561 else if (tramp_type
== MONO_AOT_TRAMP_IMT
)
5562 tpage
= load_function (amodule
, "imt_trampolines_page");
5563 else if (tramp_type
== MONO_AOT_TRAMP_GSHAREDVT_ARG
)
5564 tpage
= load_function (amodule
, "gsharedvt_arg_trampolines_page");
5565 else if (tramp_type
== MONO_AOT_TRAMP_UNBOX_ARBITRARY
)
5566 tpage
= load_function (amodule
, "unbox_arbitrary_trampolines_page");
5568 g_error ("Incorrect tramp type for trampolines page");
5570 /*g_warning ("loaded trampolines page at %x", tpage);*/
5572 /* avoid the unlikely case of looping forever */
5575 while (page
== NULL
&& count
-- > 0) {
5576 MonoTrampInfo
*gen_info
, *sp_info
;
5579 /* allocate two contiguous pages of memory: the first page will contain the data (like a local constant pool)
5580 * while the second will contain the trampolines.
5583 ret
= vm_allocate (mach_task_self (), &addr
, psize
* 2, VM_FLAGS_ANYWHERE
);
5584 } while (ret
== KERN_ABORTED
);
5585 if (ret
!= KERN_SUCCESS
) {
5586 g_error ("Cannot allocate memory for trampolines: %d", ret
);
5589 /*g_warning ("allocated trampoline double page at %x", addr);*/
5590 /* replace the second page with a remapped trampoline page */
5591 taddr
= addr
+ psize
;
5592 vm_deallocate (mach_task_self (), taddr
, psize
);
5593 ret
= vm_remap (mach_task_self (), &taddr
, psize
, 0, FALSE
, mach_task_self(), (vm_address_t
)tpage
, FALSE
, &prot
, &max_prot
, VM_INHERIT_SHARE
);
5594 if (ret
!= KERN_SUCCESS
) {
5595 /* someone else got the page, try again */
5596 vm_deallocate (mach_task_self (), addr
, psize
);
5599 /*g_warning ("remapped trampoline page at %x", taddr);*/
5601 mono_aot_page_lock ();
5602 page
= trampoline_pages
[tramp_type
];
5603 /* some other thread already allocated, so use that to avoid wasting memory */
5604 if (page
&& page
->trampolines
< page
->trampolines_end
) {
5605 code
= page
->trampolines
;
5606 page
->trampolines
+= specific_trampoline_size
;
5607 mono_aot_page_unlock ();
5608 vm_deallocate (mach_task_self (), addr
, psize
);
5609 vm_deallocate (mach_task_self (), taddr
, psize
);
5612 page
= (TrampolinePage
*)addr
;
5613 page
->next
= trampoline_pages
[tramp_type
];
5614 trampoline_pages
[tramp_type
] = page
;
5615 page
->trampolines
= (guint8
*)(taddr
+ amodule
->info
.tramp_page_code_offsets
[tramp_type
]);
5616 page
->trampolines_end
= (guint8
*)(taddr
+ psize
- 64);
5617 code
= page
->trampolines
;
5618 page
->trampolines
+= specific_trampoline_size
;
5619 mono_aot_page_unlock ();
5621 /* Register the generic part at the beggining of the trampoline page */
5622 gen_info
= mono_tramp_info_create (NULL
, (guint8
*)taddr
, amodule
->info
.tramp_page_code_offsets
[tramp_type
], NULL
, NULL
);
5623 read_page_trampoline_uwinfo (gen_info
, tramp_type
, TRUE
);
5624 mono_aot_tramp_info_register (gen_info
, NULL
);
5627 * Registering each specific trampoline produces a lot of
5628 * MonoJitInfo structures. Jump trampolines are also registered
5631 if (tramp_type
!= MONO_AOT_TRAMP_SPECIFIC
) {
5632 /* Register the rest of the page as a single trampoline */
5633 sp_info
= mono_tramp_info_create (NULL
, code
, page
->trampolines_end
- code
, NULL
, NULL
);
5634 read_page_trampoline_uwinfo (sp_info
, tramp_type
, FALSE
);
5635 mono_aot_tramp_info_register (sp_info
, NULL
);
5639 g_error ("Cannot allocate more trampoline pages: %d", ret
);
5644 static unsigned char*
5645 get_new_trampoline_from_page (int tramp_type
)
5647 g_error ("Page trampolines not supported.");
5654 get_new_specific_trampoline_from_page (gpointer tramp
, gpointer arg
)
5659 code
= get_new_trampoline_from_page (MONO_AOT_TRAMP_SPECIFIC
);
5661 data
= (gpointer
*)((char*)code
- MONO_AOT_TRAMP_PAGE_SIZE
);
5664 /*g_warning ("new trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5670 get_new_rgctx_trampoline_from_page (gpointer tramp
, gpointer arg
)
5675 code
= get_new_trampoline_from_page (MONO_AOT_TRAMP_STATIC_RGCTX
);
5677 data
= (gpointer
*)((char*)code
- MONO_AOT_TRAMP_PAGE_SIZE
);
5680 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5686 get_new_imt_trampoline_from_page (gpointer arg
)
5691 code
= get_new_trampoline_from_page (MONO_AOT_TRAMP_IMT
);
5693 data
= (gpointer
*)((char*)code
- MONO_AOT_TRAMP_PAGE_SIZE
);
5695 /*g_warning ("new imt trampoline at %p for data %p, (stored at %p)", code, arg, data);*/
5701 get_new_gsharedvt_arg_trampoline_from_page (gpointer tramp
, gpointer arg
)
5706 code
= get_new_trampoline_from_page (MONO_AOT_TRAMP_GSHAREDVT_ARG
);
5708 data
= (gpointer
*)((char*)code
- MONO_AOT_TRAMP_PAGE_SIZE
);
5711 /*g_warning ("new rgctx trampoline at %p for data %p, tramp %p (stored at %p)", code, arg, tramp, data);*/
5716 get_new_unbox_arbitrary_trampoline_frome_page (gpointer addr
)
5721 code
= get_new_trampoline_from_page (MONO_AOT_TRAMP_UNBOX_ARBITRARY
);
5723 data
= (gpointer
*)((char*)code
- MONO_AOT_TRAMP_PAGE_SIZE
);
5729 /* Return a given kind of trampoline */
5730 /* FIXME set unwind info for these trampolines */
5732 get_numerous_trampoline (MonoAotTrampoline tramp_type
, int n_got_slots
, MonoAotModule
**out_amodule
, guint32
*got_offset
, guint32
*out_tramp_size
)
5735 MonoAotModule
*amodule
= get_mscorlib_aot_module ();
5736 int index
, tramp_size
;
5738 /* Currently, we keep all trampolines in the mscorlib AOT image */
5739 image
= mono_defaults
.corlib
;
5741 *out_amodule
= amodule
;
5746 #define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
5748 #define MONOTOUCH_TRAMPOLINES_ERROR ""
5750 if (amodule
->trampoline_index
[tramp_type
] == amodule
->info
.num_trampolines
[tramp_type
]) {
5751 g_error ("Ran out of trampolines of type %d in '%s' (limit %d)%s\n",
5752 tramp_type
, image
? image
->name
: "mscorlib", amodule
->info
.num_trampolines
[tramp_type
], MONOTOUCH_TRAMPOLINES_ERROR
);
5754 index
= amodule
->trampoline_index
[tramp_type
] ++;
5758 *got_offset
= amodule
->info
.trampoline_got_offset_base
[tramp_type
] + (index
* n_got_slots
);
5760 tramp_size
= amodule
->info
.trampoline_size
[tramp_type
];
5763 *out_tramp_size
= tramp_size
;
5765 return amodule
->trampolines
[tramp_type
] + (index
* tramp_size
);
5769 no_specific_trampoline (void)
5771 g_assert_not_reached ();
5775 * Return a specific trampoline from the AOT file.
5778 mono_aot_create_specific_trampoline (MonoImage
*image
, gpointer arg1
, MonoTrampolineType tramp_type
, MonoDomain
*domain
, guint32
*code_len
)
5780 MonoAotModule
*amodule
;
5781 guint32 got_offset
, tramp_size
;
5782 guint8
*code
, *tramp
;
5783 static gpointer generic_trampolines
[MONO_TRAMPOLINE_NUM
];
5784 static gboolean inited
;
5785 static guint32 num_trampolines
;
5787 if (mono_llvm_only
) {
5789 return (gpointer
)no_specific_trampoline
;
5796 mono_counters_register ("Specific trampolines", MONO_COUNTER_JIT
| MONO_COUNTER_INT
, &num_trampolines
);
5805 if (!generic_trampolines
[tramp_type
]) {
5808 symbol
= mono_get_generic_trampoline_name (tramp_type
);
5809 generic_trampolines
[tramp_type
] = mono_aot_get_trampoline (symbol
);
5813 tramp
= (guint8
*)generic_trampolines
[tramp_type
];
5816 if (USE_PAGE_TRAMPOLINES
) {
5817 code
= (guint8
*)get_new_specific_trampoline_from_page (tramp
, arg1
);
5820 code
= (guint8
*)get_numerous_trampoline (MONO_AOT_TRAMP_SPECIFIC
, 2, &amodule
, &got_offset
, &tramp_size
);
5822 amodule
->got
[got_offset
] = tramp
;
5823 amodule
->got
[got_offset
+ 1] = arg1
;
5827 *code_len
= tramp_size
;
5833 mono_aot_get_static_rgctx_trampoline (gpointer ctx
, gpointer addr
)
5835 MonoAotModule
*amodule
;
5839 if (USE_PAGE_TRAMPOLINES
) {
5840 code
= (guint8
*)get_new_rgctx_trampoline_from_page (addr
, ctx
);
5842 code
= (guint8
*)get_numerous_trampoline (MONO_AOT_TRAMP_STATIC_RGCTX
, 2, &amodule
, &got_offset
, NULL
);
5844 amodule
->got
[got_offset
] = ctx
;
5845 amodule
->got
[got_offset
+ 1] = addr
;
5848 /* The caller expects an ftnptr */
5849 return mono_create_ftnptr (mono_domain_get (), code
);
5853 mono_aot_get_unbox_arbitrary_trampoline (gpointer addr
)
5855 MonoAotModule
*amodule
;
5859 if (USE_PAGE_TRAMPOLINES
) {
5860 code
= (guint8
*)get_new_unbox_arbitrary_trampoline_frome_page (addr
);
5862 code
= (guint8
*)get_numerous_trampoline (MONO_AOT_TRAMP_UNBOX_ARBITRARY
, 1, &amodule
, &got_offset
, NULL
);
5863 amodule
->got
[got_offset
] = addr
;
5866 /* The caller expects an ftnptr */
5867 return mono_create_ftnptr (mono_domain_get (), code
);
5871 mono_aot_get_unbox_trampoline (MonoMethod
*method
, gpointer addr
)
5874 guint32 method_index
= mono_metadata_token_index (method
->token
) - 1;
5875 MonoAotModule
*amodule
;
5877 guint32
*ut
, *ut_end
, *entry
;
5878 int low
, high
, entry_index
= 0;
5879 MonoTrampInfo
*tinfo
;
5881 if (method
->is_inflated
&& !mono_method_is_generic_sharable_full (method
, FALSE
, FALSE
, FALSE
)) {
5882 method_index
= find_aot_method (method
, &amodule
);
5883 if (method_index
== 0xffffff && mono_method_is_generic_sharable_full (method
, FALSE
, TRUE
, FALSE
)) {
5884 MonoMethod
*shared
= mini_get_shared_method_full (method
, SHARE_MODE_NONE
, error
);
5885 mono_error_assert_ok (error
);
5886 method_index
= find_aot_method (shared
, &amodule
);
5888 if (method_index
== 0xffffff && mono_method_is_generic_sharable_full (method
, FALSE
, TRUE
, TRUE
)) {
5889 MonoMethod
*shared
= mini_get_shared_method_full (method
, SHARE_MODE_GSHAREDVT
, error
);
5890 mono_error_assert_ok (error
);
5892 method_index
= find_aot_method (shared
, &amodule
);
5895 amodule
= m_class_get_image (method
->klass
)->aot_module
;
5897 if (amodule
== NULL
|| method_index
== 0xffffff) {
5898 /* couldn't find unbox trampoline specifically generated for that
5899 * method. this should only happen when an unbox trampoline is needed
5900 * for `fullAOT code -> native-to-interp -> interp` transition if
5901 * (1) it's a virtual call
5902 * (2) the receiver is a value type, thus needs unboxing */
5903 g_assert (mono_use_interpreter
);
5904 return mono_aot_get_unbox_arbitrary_trampoline (addr
);
5907 if (amodule
->info
.llvm_get_unbox_tramp
) {
5908 gpointer (*get_tramp
) (int) = (gpointer (*)(int))amodule
->info
.llvm_get_unbox_tramp
;
5909 code
= get_tramp (method_index
);
5915 ut
= amodule
->unbox_trampolines
;
5916 ut_end
= amodule
->unbox_trampolines_end
;
5918 /* Do a binary search in the sorted table */
5921 high
= (ut_end
- ut
);
5922 while (low
< high
) {
5923 entry_index
= (low
+ high
) / 2;
5924 entry
= &ut
[entry_index
];
5925 if (entry
[0] < method_index
) {
5926 low
= entry_index
+ 1;
5927 } else if (entry
[0] > method_index
) {
5934 code
= get_call_table_entry (amodule
->unbox_trampoline_addresses
, entry_index
);
5937 tinfo
= mono_tramp_info_create (NULL
, (guint8
*)code
, 0, NULL
, NULL
);
5939 gpointer
const symbol_addr
= read_unwind_info (amodule
, tinfo
, "unbox_trampoline_p");
5941 mono_tramp_info_free (tinfo
);
5945 tinfo
->code_size
= *(guint32
*)symbol_addr
;
5946 mono_aot_tramp_info_register (tinfo
, NULL
);
5948 /* The caller expects an ftnptr */
5949 return mono_create_ftnptr (mono_domain_get (), code
);
5953 mono_aot_get_lazy_fetch_trampoline (guint32 slot
)
5957 MonoAotModule
*amodule
= mono_defaults
.corlib
->aot_module
;
5958 guint32 index
= MONO_RGCTX_SLOT_INDEX (slot
);
5959 static int count
= 0;
5962 if (index
>= amodule
->info
.num_rgctx_fetch_trampolines
) {
5963 static gpointer addr
;
5967 * Use the general version of the rgctx fetch trampoline. It receives a pair of <slot, trampoline> in the rgctx arg reg.
5970 addr
= load_function (amodule
, "rgctx_fetch_trampoline_general");
5971 info
= (void **)mono_domain_alloc0 (mono_get_root_domain (), sizeof (gpointer
) * 2);
5972 info
[0] = GUINT_TO_POINTER (slot
);
5973 info
[1] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot
), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH
, mono_get_root_domain (), NULL
);
5974 code
= mono_aot_get_static_rgctx_trampoline (info
, addr
);
5975 return mono_create_ftnptr (mono_domain_get (), code
);
5978 symbol
= mono_get_rgctx_fetch_trampoline_name (slot
);
5979 code
= load_function (mono_defaults
.corlib
->aot_module
, symbol
);
5981 /* The caller expects an ftnptr */
5982 return mono_create_ftnptr (mono_domain_get (), code
);
5986 no_imt_trampoline (void)
5988 g_assert_not_reached ();
5992 mono_aot_get_imt_trampoline (MonoVTable
*vtable
, MonoDomain
*domain
, MonoIMTCheckItem
**imt_entries
, int count
, gpointer fail_tramp
)
5997 int i
, index
, real_count
;
5998 MonoAotModule
*amodule
;
6001 return (gpointer
)no_imt_trampoline
;
6004 for (i
= 0; i
< count
; ++i
) {
6005 MonoIMTCheckItem
*item
= imt_entries
[i
];
6007 if (item
->is_equals
)
6011 /* Save the entries into an array */
6012 buf
= (void **)mono_domain_alloc (domain
, (real_count
+ 1) * 2 * sizeof (gpointer
));
6014 for (i
= 0; i
< count
; ++i
) {
6015 MonoIMTCheckItem
*item
= imt_entries
[i
];
6017 if (!item
->is_equals
)
6020 g_assert (item
->key
);
6022 buf
[(index
* 2)] = item
->key
;
6023 if (item
->has_target_code
) {
6024 gpointer
*p
= (gpointer
*)mono_domain_alloc (domain
, sizeof (gpointer
));
6025 *p
= item
->value
.target_code
;
6026 buf
[(index
* 2) + 1] = p
;
6028 buf
[(index
* 2) + 1] = &(vtable
->vtable
[item
->value
.vtable_slot
]);
6032 buf
[(index
* 2)] = NULL
;
6033 buf
[(index
* 2) + 1] = fail_tramp
;
6035 if (USE_PAGE_TRAMPOLINES
) {
6036 code
= get_new_imt_trampoline_from_page (buf
);
6038 code
= get_numerous_trampoline (MONO_AOT_TRAMP_IMT
, 1, &amodule
, &got_offset
, NULL
);
6040 amodule
->got
[got_offset
] = buf
;
6047 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg
, gpointer addr
)
6049 MonoAotModule
*amodule
;
6053 if (USE_PAGE_TRAMPOLINES
) {
6054 code
= (guint8
*)get_new_gsharedvt_arg_trampoline_from_page (addr
, arg
);
6056 code
= (guint8
*)get_numerous_trampoline (MONO_AOT_TRAMP_GSHAREDVT_ARG
, 2, &amodule
, &got_offset
, NULL
);
6058 amodule
->got
[got_offset
] = arg
;
6059 amodule
->got
[got_offset
+ 1] = addr
;
6062 /* The caller expects an ftnptr */
6063 return mono_create_ftnptr (mono_domain_get (), code
);
6066 #ifdef MONO_ARCH_HAVE_FTNPTR_ARG_TRAMPOLINE
6068 mono_aot_get_ftnptr_arg_trampoline (gpointer arg
, gpointer addr
)
6070 MonoAotModule
*amodule
;
6074 if (USE_PAGE_TRAMPOLINES
) {
6075 g_error ("FIXME: ftnptr_arg page trampolines");
6077 code
= (guint8
*)get_numerous_trampoline (MONO_AOT_TRAMP_FTNPTR_ARG
, 2, &amodule
, &got_offset
, NULL
);
6079 amodule
->got
[got_offset
] = arg
;
6080 amodule
->got
[got_offset
+ 1] = addr
;
6083 /* The caller expects an ftnptr */
6084 return mono_create_ftnptr (mono_domain_get (), code
);
6090 * mono_aot_set_make_unreadable:
6092 * Set whenever to make all mmaped memory unreadable. In conjuction with a
6093 * SIGSEGV handler, this is useful to find out which pages the runtime tries to read.
6096 mono_aot_set_make_unreadable (gboolean unreadable
)
6100 make_unreadable
= unreadable
;
6102 if (make_unreadable
&& !inited
) {
6103 mono_counters_register ("AOT: pagefaults", MONO_COUNTER_JIT
| MONO_COUNTER_INT
, &n_pagefaults
);
6108 MonoAotModule
*module
;
6113 find_map (gpointer key
, gpointer value
, gpointer user_data
)
6115 MonoAotModule
*module
= (MonoAotModule
*)value
;
6116 FindMapUserData
*data
= (FindMapUserData
*)user_data
;
6119 if ((data
->ptr
>= module
->mem_begin
) && (data
->ptr
< module
->mem_end
))
6120 data
->module
= module
;
6123 static MonoAotModule
*
6124 find_module_for_addr (void *ptr
)
6126 FindMapUserData data
;
6128 if (!make_unreadable
)
6132 data
.ptr
= (guint8
*)ptr
;
6135 g_hash_table_foreach (aot_modules
, (GHFunc
)find_map
, &data
);
6142 * mono_aot_is_pagefault:
6144 * Should be called from a SIGSEGV signal handler to find out whenever @ptr is
6145 * within memory allocated by this module.
6148 mono_aot_is_pagefault (void *ptr
)
6150 if (!make_unreadable
)
6154 * Not signal safe, but SIGSEGV's are synchronous, and
6155 * this is only turned on by a MONO_DEBUG option.
6157 return find_module_for_addr (ptr
) != NULL
;
6161 * mono_aot_handle_pagefault:
6163 * Handle a pagefault caused by an unreadable page by making it readable again.
6166 mono_aot_handle_pagefault (void *ptr
)
6169 guint8
* start
= (guint8
*)ROUND_DOWN (((gssize
)ptr
), mono_pagesize ());
6173 res
= mono_mprotect (start
, mono_pagesize (), MONO_MMAP_READ
|MONO_MMAP_WRITE
|MONO_MMAP_EXEC
);
6174 g_assert (res
== 0);
6185 mono_aot_init (void)
6190 mono_aot_cleanup (void)
6195 mono_aot_find_method_index (MonoMethod
*method
)
6197 g_assert_not_reached ();
6202 mono_aot_init_llvm_method (gpointer aot_module
, guint32 method_index
)
6207 mono_aot_init_gshared_method_this (gpointer aot_module
, guint32 method_index
, MonoObject
*this)
6212 mono_aot_init_gshared_method_mrgctx (gpointer aot_module
, guint32 method_index
, MonoMethodRuntimeGenericContext
*rgctx
)
6217 mono_aot_init_gshared_method_vtable (gpointer aot_module
, guint32 method_index
, MonoVTable
*vtable
)
6222 mono_aot_get_method (MonoDomain
*domain
,
6223 MonoMethod
*method
, MonoError
*error
)
6230 mono_aot_is_got_entry (guint8
*code
, guint8
*addr
)
6236 mono_aot_get_cached_class_info (MonoClass
*klass
, MonoCachedClassInfo
*res
)
6242 mono_aot_get_class_from_name (MonoImage
*image
, const char *name_space
, const char *name
, MonoClass
**klass
)
6248 mono_aot_find_jit_info (MonoDomain
*domain
, MonoImage
*image
, gpointer addr
)
6254 mono_aot_get_method_from_token (MonoDomain
*domain
, MonoImage
*image
, guint32 token
, MonoError
*error
)
6261 mono_aot_get_plt_entry (guint8
*code
)
6267 mono_aot_plt_resolve (gpointer aot_module
, guint32 plt_info_offset
, guint8
*code
, MonoError
*error
)
6273 mono_aot_patch_plt_entry (guint8
*code
, guint8
*plt_entry
, gpointer
*got
, host_mgreg_t
*regs
, guint8
*addr
)
6278 mono_aot_get_method_from_vt_slot (MonoDomain
*domain
, MonoVTable
*vtable
, int slot
, MonoError
*error
)
6286 mono_aot_get_plt_info_offset (host_mgreg_t
*regs
, guint8
*code
)
6288 g_assert_not_reached ();
6294 mono_aot_create_specific_trampoline (MonoImage
*image
, gpointer arg1
, MonoTrampolineType tramp_type
, MonoDomain
*domain
, guint32
*code_len
)
6296 g_assert_not_reached ();
6301 mono_aot_get_static_rgctx_trampoline (gpointer ctx
, gpointer addr
)
6303 g_assert_not_reached ();
6308 mono_aot_get_trampoline_full (const char *name
, MonoTrampInfo
**out_tinfo
)
6310 g_assert_not_reached ();
6315 mono_aot_get_trampoline (const char *name
)
6317 g_assert_not_reached ();
6322 mono_aot_get_unbox_arbitrary_trampoline (gpointer addr
)
6324 g_assert_not_reached ();
6329 mono_aot_get_unbox_trampoline (MonoMethod
*method
, gpointer addr
)
6331 g_assert_not_reached ();
6336 mono_aot_get_lazy_fetch_trampoline (guint32 slot
)
6338 g_assert_not_reached ();
6343 mono_aot_get_imt_trampoline (MonoVTable
*vtable
, MonoDomain
*domain
, MonoIMTCheckItem
**imt_entries
, int count
, gpointer fail_tramp
)
6345 g_assert_not_reached ();
6350 mono_aot_get_gsharedvt_arg_trampoline (gpointer arg
, gpointer addr
)
6352 g_assert_not_reached ();
6356 #ifdef MONO_ARCH_HAVE_FTNPTR_ARG_TRAMPOLINE
6358 mono_aot_get_ftnptr_arg_trampoline (gpointer arg
, gpointer addr
)
6360 g_assert_not_reached ();
6366 mono_aot_set_make_unreadable (gboolean unreadable
)
6371 mono_aot_is_pagefault (void *ptr
)
6377 mono_aot_handle_pagefault (void *ptr
)
6382 mono_aot_get_unwind_info (MonoJitInfo
*ji
, guint32
*unwind_info_len
)
6384 g_assert_not_reached ();
6389 mono_aot_register_jit_icall (const char *name
, gpointer addr
)
6394 mono_aot_get_weak_field_indexes (MonoImage
*image
)