/
reflection.c
10832 lines (9455 loc) · 339 KB
/
reflection.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* reflection.c: Routines for creating an image at runtime.
*
* Author:
* Paolo Molaro (lupus@ximian.com)
*
* (C) 2001, 2002 Ximian, Inc. http://www.ximian.com
*
*/
#include <config.h>
#include "mono/utils/mono-digest.h"
#include "mono/metadata/reflection.h"
#include "mono/metadata/tabledefs.h"
#include "mono/metadata/metadata-internals.h"
#include <mono/metadata/profiler-private.h>
#include "mono/metadata/class-internals.h"
#include "mono/metadata/gc-internal.h"
#include "mono/metadata/tokentype.h"
#include "mono/metadata/domain-internals.h"
#include "mono/metadata/opcodes.h"
#include "mono/metadata/assembly.h"
#include "mono/metadata/object-internals.h"
#include <mono/metadata/exception.h>
#include <mono/metadata/marshal.h>
#include <mono/metadata/security-manager.h>
#include <stdio.h>
#include <glib.h>
#include <errno.h>
#include <time.h>
#include <string.h>
#include <ctype.h>
#include "image.h"
#include "cil-coff.h"
#include "rawbuffer.h"
#include "mono-endian.h"
#include <mono/metadata/gc-internal.h>
typedef struct {
char *p;
char *buf;
char *end;
} SigBuffer;
#define TEXT_OFFSET 512
#define CLI_H_SIZE 136
#define FILE_ALIGN 512
#define VIRT_ALIGN 8192
#define START_TEXT_RVA 0x00002000
typedef struct {
MonoReflectionILGen *ilgen;
MonoReflectionType *rtype;
MonoArray *parameters;
MonoArray *generic_params;
MonoGenericContainer *generic_container;
MonoArray *pinfo;
MonoArray *opt_types;
guint32 attrs;
guint32 iattrs;
guint32 call_conv;
guint32 *table_idx; /* note: it's a pointer */
MonoArray *code;
MonoObject *type;
MonoString *name;
MonoBoolean init_locals;
MonoBoolean skip_visibility;
MonoArray *return_modreq;
MonoArray *return_modopt;
MonoArray *param_modreq;
MonoArray *param_modopt;
MonoArray *permissions;
MonoMethod *mhandle;
guint32 nrefs;
gpointer *refs;
/* for PInvoke */
int charset, extra_flags, native_cc;
MonoString *dll, *dllentry;
} ReflectionMethodBuilder;
typedef struct {
guint32 owner;
MonoReflectionGenericParam *gparam;
} GenericParamTableEntry;
const unsigned char table_sizes [MONO_TABLE_NUM] = {
MONO_MODULE_SIZE,
MONO_TYPEREF_SIZE,
MONO_TYPEDEF_SIZE,
0,
MONO_FIELD_SIZE,
0,
MONO_METHOD_SIZE,
0,
MONO_PARAM_SIZE,
MONO_INTERFACEIMPL_SIZE,
MONO_MEMBERREF_SIZE, /* 0x0A */
MONO_CONSTANT_SIZE,
MONO_CUSTOM_ATTR_SIZE,
MONO_FIELD_MARSHAL_SIZE,
MONO_DECL_SECURITY_SIZE,
MONO_CLASS_LAYOUT_SIZE,
MONO_FIELD_LAYOUT_SIZE, /* 0x10 */
MONO_STAND_ALONE_SIGNATURE_SIZE,
MONO_EVENT_MAP_SIZE,
0,
MONO_EVENT_SIZE,
MONO_PROPERTY_MAP_SIZE,
0,
MONO_PROPERTY_SIZE,
MONO_METHOD_SEMA_SIZE,
MONO_METHODIMPL_SIZE,
MONO_MODULEREF_SIZE, /* 0x1A */
MONO_TYPESPEC_SIZE,
MONO_IMPLMAP_SIZE,
MONO_FIELD_RVA_SIZE,
0,
0,
MONO_ASSEMBLY_SIZE, /* 0x20 */
MONO_ASSEMBLY_PROCESSOR_SIZE,
MONO_ASSEMBLYOS_SIZE,
MONO_ASSEMBLYREF_SIZE,
MONO_ASSEMBLYREFPROC_SIZE,
MONO_ASSEMBLYREFOS_SIZE,
MONO_FILE_SIZE,
MONO_EXP_TYPE_SIZE,
MONO_MANIFEST_SIZE,
MONO_NESTED_CLASS_SIZE,
MONO_GENERICPARAM_SIZE, /* 0x2A */
MONO_METHODSPEC_SIZE,
MONO_GENPARCONSTRAINT_SIZE
};
static void reflection_methodbuilder_from_method_builder (ReflectionMethodBuilder *rmb, MonoReflectionMethodBuilder *mb);
static void reflection_methodbuilder_from_ctor_builder (ReflectionMethodBuilder *rmb, MonoReflectionCtorBuilder *mb);
static guint32 mono_image_typedef_or_ref (MonoDynamicImage *assembly, MonoType *type);
static guint32 mono_image_typedef_or_ref_full (MonoDynamicImage *assembly, MonoType *type, gboolean try_typespec);
static guint32 mono_image_get_methodref_token (MonoDynamicImage *assembly, MonoMethod *method);
static guint32 mono_image_get_methodbuilder_token (MonoDynamicImage *assembly, MonoReflectionMethodBuilder *mb, gboolean create_methodspec);
static guint32 mono_image_get_ctorbuilder_token (MonoDynamicImage *assembly, MonoReflectionCtorBuilder *cb);
static guint32 mono_image_get_sighelper_token (MonoDynamicImage *assembly, MonoReflectionSigHelper *helper);
static void mono_image_get_generic_param_info (MonoReflectionGenericParam *gparam, guint32 owner, MonoDynamicImage *assembly);
static guint32 encode_marshal_blob (MonoDynamicImage *assembly, MonoReflectionMarshal *minfo);
static guint32 encode_constant (MonoDynamicImage *assembly, MonoObject *val, guint32 *ret_type);
static char* type_get_qualified_name (MonoType *type, MonoAssembly *ass);
static void ensure_runtime_vtable (MonoClass *klass);
static gpointer resolve_object (MonoImage *image, MonoObject *obj, MonoClass **handle_class, MonoGenericContext *context);
static void encode_type (MonoDynamicImage *assembly, MonoType *type, SigBuffer *buf);
static void get_default_param_value_blobs (MonoMethod *method, char **blobs, guint32 *types);
static MonoObject *mono_get_object_from_blob (MonoDomain *domain, MonoType *type, const char *blob);
static MonoReflectionType *mono_reflection_type_get_underlying_system_type (MonoReflectionType* t);
static MonoType* mono_reflection_get_type_with_rootimage (MonoImage *rootimage, MonoImage* image, MonoTypeNameParse *info, gboolean ignorecase, gboolean *type_resolve);
static guint32 mono_image_get_methodref_token_for_methodbuilder (MonoDynamicImage *assembly, MonoReflectionMethodBuilder *method);
#define mono_reflection_lock() EnterCriticalSection (&reflection_mutex)
#define mono_reflection_unlock() LeaveCriticalSection (&reflection_mutex)
static CRITICAL_SECTION reflection_mutex;
void
mono_reflection_init (void)
{
InitializeCriticalSection (&reflection_mutex);
}
static void
sigbuffer_init (SigBuffer *buf, int size)
{
buf->buf = g_malloc (size);
buf->p = buf->buf;
buf->end = buf->buf + size;
}
static void
sigbuffer_make_room (SigBuffer *buf, int size)
{
if (buf->end - buf->p < size) {
int new_size = buf->end - buf->buf + size + 32;
char *p = g_realloc (buf->buf, new_size);
size = buf->p - buf->buf;
buf->buf = p;
buf->p = p + size;
buf->end = buf->buf + new_size;
}
}
static void
sigbuffer_add_value (SigBuffer *buf, guint32 val)
{
sigbuffer_make_room (buf, 6);
mono_metadata_encode_value (val, buf->p, &buf->p);
}
static void
sigbuffer_add_byte (SigBuffer *buf, guint8 val)
{
sigbuffer_make_room (buf, 1);
buf->p [0] = val;
buf->p++;
}
static void
sigbuffer_add_mem (SigBuffer *buf, char *p, guint32 size)
{
sigbuffer_make_room (buf, size);
memcpy (buf->p, p, size);
buf->p += size;
}
static void
sigbuffer_free (SigBuffer *buf)
{
g_free (buf->buf);
}
/**
* mp_g_alloc:
*
* Allocate memory from the mempool MP if it is non-NULL. Otherwise, allocate memory
* from the C heap.
*/
static gpointer
mp_g_malloc (MonoMemPool *mp, guint size)
{
if (mp)
return mono_mempool_alloc (mp, size);
else
return g_malloc (size);
}
/**
* mp_g_alloc0:
*
* Allocate memory from the mempool MP if it is non-NULL. Otherwise, allocate memory
* from the C heap.
*/
static gpointer
mp_g_malloc0 (MonoMemPool *mp, guint size)
{
if (mp)
return mono_mempool_alloc0 (mp, size);
else
return g_malloc0 (size);
}
/**
* mp_string_to_utf8:
*
* Allocate memory from the mempool MP if it is non-NULL. Otherwise, allocate
* memory from the C heap.
*/
static char *
mp_string_to_utf8 (MonoMemPool *mp, MonoString *s)
{
if (mp)
return mono_string_to_utf8_mp (mp, s);
else
return mono_string_to_utf8 (s);
}
#define mp_g_new(mp,struct_type, n_structs) \
((struct_type *) mp_g_malloc (mp, ((gsize) sizeof (struct_type)) * ((gsize) (n_structs))))
#define mp_g_new0(mp,struct_type, n_structs) \
((struct_type *) mp_g_malloc0 (mp, ((gsize) sizeof (struct_type)) * ((gsize) (n_structs))))
static void
alloc_table (MonoDynamicTable *table, guint nrows)
{
table->rows = nrows;
g_assert (table->columns);
if (nrows + 1 >= table->alloc_rows) {
while (nrows + 1 >= table->alloc_rows) {
if (table->alloc_rows == 0)
table->alloc_rows = 16;
else
table->alloc_rows *= 2;
}
table->values = g_renew (guint32, table->values, (table->alloc_rows) * table->columns);
}
}
static void
make_room_in_stream (MonoDynamicStream *stream, int size)
{
if (size <= stream->alloc_size)
return;
while (stream->alloc_size <= size) {
if (stream->alloc_size < 4096)
stream->alloc_size = 4096;
else
stream->alloc_size *= 2;
}
stream->data = g_realloc (stream->data, stream->alloc_size);
}
static guint32
string_heap_insert (MonoDynamicStream *sh, const char *str)
{
guint32 idx;
guint32 len;
gpointer oldkey, oldval;
if (g_hash_table_lookup_extended (sh->hash, str, &oldkey, &oldval))
return GPOINTER_TO_UINT (oldval);
len = strlen (str) + 1;
idx = sh->index;
make_room_in_stream (sh, idx + len);
/*
* We strdup the string even if we already copy them in sh->data
* so that the string pointers in the hash remain valid even if
* we need to realloc sh->data. We may want to avoid that later.
*/
g_hash_table_insert (sh->hash, g_strdup (str), GUINT_TO_POINTER (idx));
memcpy (sh->data + idx, str, len);
sh->index += len;
return idx;
}
static guint32
string_heap_insert_mstring (MonoDynamicStream *sh, MonoString *str)
{
char *name = mono_string_to_utf8 (str);
guint32 idx;
idx = string_heap_insert (sh, name);
g_free (name);
return idx;
}
static void
string_heap_init (MonoDynamicStream *sh)
{
sh->index = 0;
sh->alloc_size = 4096;
sh->data = g_malloc (4096);
sh->hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
string_heap_insert (sh, "");
}
static guint32
mono_image_add_stream_data (MonoDynamicStream *stream, const char *data, guint32 len)
{
guint32 idx;
make_room_in_stream (stream, stream->index + len);
memcpy (stream->data + stream->index, data, len);
idx = stream->index;
stream->index += len;
/*
* align index? Not without adding an additional param that controls it since
* we may store a blob value in pieces.
*/
return idx;
}
static guint32
mono_image_add_stream_zero (MonoDynamicStream *stream, guint32 len)
{
guint32 idx;
make_room_in_stream (stream, stream->index + len);
memset (stream->data + stream->index, 0, len);
idx = stream->index;
stream->index += len;
return idx;
}
static void
stream_data_align (MonoDynamicStream *stream)
{
char buf [4] = {0};
guint32 count = stream->index % 4;
/* we assume the stream data will be aligned */
if (count)
mono_image_add_stream_data (stream, buf, 4 - count);
}
static int
mono_blob_entry_hash (const char* str)
{
guint len, h;
const char *end;
len = mono_metadata_decode_blob_size (str, &str);
if (len > 0) {
end = str + len;
h = *str;
for (str += 1; str < end; str++)
h = (h << 5) - h + *str;
return h;
} else {
return 0;
}
}
static gboolean
mono_blob_entry_equal (const char *str1, const char *str2) {
int len, len2;
const char *end1;
const char *end2;
len = mono_metadata_decode_blob_size (str1, &end1);
len2 = mono_metadata_decode_blob_size (str2, &end2);
if (len != len2)
return 0;
return memcmp (end1, end2, len) == 0;
}
static guint32
add_to_blob_cached (MonoDynamicImage *assembly, char *b1, int s1, char *b2, int s2)
{
guint32 idx;
char *copy;
gpointer oldkey, oldval;
copy = g_malloc (s1+s2);
memcpy (copy, b1, s1);
memcpy (copy + s1, b2, s2);
if (g_hash_table_lookup_extended (assembly->blob_cache, copy, &oldkey, &oldval)) {
g_free (copy);
idx = GPOINTER_TO_UINT (oldval);
} else {
idx = mono_image_add_stream_data (&assembly->blob, b1, s1);
mono_image_add_stream_data (&assembly->blob, b2, s2);
g_hash_table_insert (assembly->blob_cache, copy, GUINT_TO_POINTER (idx));
}
return idx;
}
static guint32
sigbuffer_add_to_blob_cached (MonoDynamicImage *assembly, SigBuffer *buf)
{
char blob_size [8];
char *b = blob_size;
guint32 size = buf->p - buf->buf;
/* store length */
g_assert (size <= (buf->end - buf->buf));
mono_metadata_encode_value (size, b, &b);
return add_to_blob_cached (assembly, blob_size, b-blob_size, buf->buf, size);
}
/*
* Copy len * nelem bytes from val to dest, swapping bytes to LE if necessary.
* dest may be misaligned.
*/
static void
swap_with_size (char *dest, const char* val, int len, int nelem) {
#if G_BYTE_ORDER != G_LITTLE_ENDIAN
int elem;
for (elem = 0; elem < nelem; ++elem) {
switch (len) {
case 1:
*dest = *val;
break;
case 2:
dest [0] = val [1];
dest [1] = val [0];
break;
case 4:
dest [0] = val [3];
dest [1] = val [2];
dest [2] = val [1];
dest [3] = val [0];
break;
case 8:
dest [0] = val [7];
dest [1] = val [6];
dest [2] = val [5];
dest [3] = val [4];
dest [4] = val [3];
dest [5] = val [2];
dest [6] = val [1];
dest [7] = val [0];
break;
default:
g_assert_not_reached ();
}
dest += len;
val += len;
}
#else
memcpy (dest, val, len * nelem);
#endif
}
static guint32
add_mono_string_to_blob_cached (MonoDynamicImage *assembly, MonoString *str)
{
char blob_size [64];
char *b = blob_size;
guint32 idx = 0, len;
len = str->length * 2;
mono_metadata_encode_value (len, b, &b);
#if G_BYTE_ORDER != G_LITTLE_ENDIAN
{
char *swapped = g_malloc (2 * mono_string_length (str));
const char *p = (const char*)mono_string_chars (str);
swap_with_size (swapped, p, 2, mono_string_length (str));
idx = add_to_blob_cached (assembly, blob_size, b-blob_size, swapped, len);
g_free (swapped);
}
#else
idx = add_to_blob_cached (assembly, blob_size, b-blob_size, (char*)mono_string_chars (str), len);
#endif
return idx;
}
/* modified version needed to handle building corlib */
static MonoClass*
my_mono_class_from_mono_type (MonoType *type) {
switch (type->type) {
case MONO_TYPE_ARRAY:
case MONO_TYPE_PTR:
case MONO_TYPE_SZARRAY:
case MONO_TYPE_GENERICINST:
return mono_class_from_mono_type (type);
case MONO_TYPE_VAR:
case MONO_TYPE_MVAR:
g_assert (type->data.generic_param->pklass);
return type->data.generic_param->pklass;
default:
/* should be always valid when we reach this case... */
return type->data.klass;
}
}
static MonoClass *
default_class_from_mono_type (MonoType *type)
{
switch (type->type) {
case MONO_TYPE_OBJECT:
return mono_defaults.object_class;
case MONO_TYPE_VOID:
return mono_defaults.void_class;
case MONO_TYPE_BOOLEAN:
return mono_defaults.boolean_class;
case MONO_TYPE_CHAR:
return mono_defaults.char_class;
case MONO_TYPE_I1:
return mono_defaults.sbyte_class;
case MONO_TYPE_U1:
return mono_defaults.byte_class;
case MONO_TYPE_I2:
return mono_defaults.int16_class;
case MONO_TYPE_U2:
return mono_defaults.uint16_class;
case MONO_TYPE_I4:
return mono_defaults.int32_class;
case MONO_TYPE_U4:
return mono_defaults.uint32_class;
case MONO_TYPE_I:
return mono_defaults.int_class;
case MONO_TYPE_U:
return mono_defaults.uint_class;
case MONO_TYPE_I8:
return mono_defaults.int64_class;
case MONO_TYPE_U8:
return mono_defaults.uint64_class;
case MONO_TYPE_R4:
return mono_defaults.single_class;
case MONO_TYPE_R8:
return mono_defaults.double_class;
case MONO_TYPE_STRING:
return mono_defaults.string_class;
default:
g_warning ("default_class_from_mono_type: implement me 0x%02x\n", type->type);
g_assert_not_reached ();
}
return NULL;
}
static void
encode_generic_class (MonoDynamicImage *assembly, MonoGenericClass *gclass, SigBuffer *buf)
{
int i;
MonoGenericInst *class_inst;
MonoClass *klass;
g_assert (gclass);
class_inst = gclass->context.class_inst;
sigbuffer_add_value (buf, MONO_TYPE_GENERICINST);
klass = gclass->container_class;
sigbuffer_add_value (buf, klass->byval_arg.type);
sigbuffer_add_value (buf, mono_image_typedef_or_ref_full (assembly, &klass->byval_arg, FALSE));
sigbuffer_add_value (buf, class_inst->type_argc);
for (i = 0; i < class_inst->type_argc; ++i)
encode_type (assembly, class_inst->type_argv [i], buf);
}
static void
encode_type (MonoDynamicImage *assembly, MonoType *type, SigBuffer *buf)
{
if (!type) {
g_assert_not_reached ();
return;
}
if (type->byref)
sigbuffer_add_value (buf, MONO_TYPE_BYREF);
switch (type->type){
case MONO_TYPE_VOID:
case MONO_TYPE_BOOLEAN:
case MONO_TYPE_CHAR:
case MONO_TYPE_I1:
case MONO_TYPE_U1:
case MONO_TYPE_I2:
case MONO_TYPE_U2:
case MONO_TYPE_I4:
case MONO_TYPE_U4:
case MONO_TYPE_I8:
case MONO_TYPE_U8:
case MONO_TYPE_R4:
case MONO_TYPE_R8:
case MONO_TYPE_I:
case MONO_TYPE_U:
case MONO_TYPE_STRING:
case MONO_TYPE_OBJECT:
case MONO_TYPE_TYPEDBYREF:
sigbuffer_add_value (buf, type->type);
break;
case MONO_TYPE_PTR:
sigbuffer_add_value (buf, type->type);
encode_type (assembly, type->data.type, buf);
break;
case MONO_TYPE_SZARRAY:
sigbuffer_add_value (buf, type->type);
encode_type (assembly, &type->data.klass->byval_arg, buf);
break;
case MONO_TYPE_VALUETYPE:
case MONO_TYPE_CLASS: {
MonoClass *k = mono_class_from_mono_type (type);
if (k->generic_container) {
MonoGenericClass *gclass = mono_metadata_lookup_generic_class (k, k->generic_container->context.class_inst, TRUE);
encode_generic_class (assembly, gclass, buf);
} else {
/*
* Make sure we use the correct type.
*/
sigbuffer_add_value (buf, k->byval_arg.type);
/*
* ensure only non-byref gets passed to mono_image_typedef_or_ref(),
* otherwise two typerefs could point to the same type, leading to
* verification errors.
*/
sigbuffer_add_value (buf, mono_image_typedef_or_ref (assembly, &k->byval_arg));
}
break;
}
case MONO_TYPE_ARRAY:
sigbuffer_add_value (buf, type->type);
encode_type (assembly, &type->data.array->eklass->byval_arg, buf);
sigbuffer_add_value (buf, type->data.array->rank);
sigbuffer_add_value (buf, 0); /* FIXME: set to 0 for now */
sigbuffer_add_value (buf, 0);
break;
case MONO_TYPE_GENERICINST:
encode_generic_class (assembly, type->data.generic_class, buf);
break;
case MONO_TYPE_VAR:
case MONO_TYPE_MVAR:
sigbuffer_add_value (buf, type->type);
sigbuffer_add_value (buf, type->data.generic_param->num);
break;
default:
g_error ("need to encode type %x", type->type);
}
}
static void
encode_reflection_type (MonoDynamicImage *assembly, MonoReflectionType *type, SigBuffer *buf)
{
if (!type) {
sigbuffer_add_value (buf, MONO_TYPE_VOID);
return;
}
if (type->type ||
((type = mono_reflection_type_get_underlying_system_type (type)) && type->type)) {
encode_type (assembly, type->type, buf);
return;
}
g_assert_not_reached ();
}
static void
encode_custom_modifiers (MonoDynamicImage *assembly, MonoArray *modreq, MonoArray *modopt, SigBuffer *buf)
{
int i;
if (modreq) {
for (i = 0; i < mono_array_length (modreq); ++i) {
MonoReflectionType *mod = mono_array_get (modreq, MonoReflectionType*, i);
sigbuffer_add_byte (buf, MONO_TYPE_CMOD_REQD);
sigbuffer_add_value (buf, mono_image_typedef_or_ref (assembly, mod->type));
}
}
if (modopt) {
for (i = 0; i < mono_array_length (modopt); ++i) {
MonoReflectionType *mod = mono_array_get (modopt, MonoReflectionType*, i);
sigbuffer_add_byte (buf, MONO_TYPE_CMOD_OPT);
sigbuffer_add_value (buf, mono_image_typedef_or_ref (assembly, mod->type));
}
}
}
static guint32
method_encode_signature (MonoDynamicImage *assembly, MonoMethodSignature *sig)
{
SigBuffer buf;
int i;
guint32 nparams = sig->param_count;
guint32 idx;
if (!assembly->save)
return 0;
sigbuffer_init (&buf, 32);
/*
* FIXME: vararg, explicit_this, differenc call_conv values...
*/
idx = sig->call_convention;
if (sig->hasthis)
idx |= 0x20; /* hasthis */
if (sig->generic_param_count)
idx |= 0x10; /* generic */
sigbuffer_add_byte (&buf, idx);
if (sig->generic_param_count)
sigbuffer_add_value (&buf, sig->generic_param_count);
sigbuffer_add_value (&buf, nparams);
encode_type (assembly, sig->ret, &buf);
for (i = 0; i < nparams; ++i) {
if (i == sig->sentinelpos)
sigbuffer_add_byte (&buf, MONO_TYPE_SENTINEL);
encode_type (assembly, sig->params [i], &buf);
}
idx = sigbuffer_add_to_blob_cached (assembly, &buf);
sigbuffer_free (&buf);
return idx;
}
static guint32
method_builder_encode_signature (MonoDynamicImage *assembly, ReflectionMethodBuilder *mb)
{
/*
* FIXME: reuse code from method_encode_signature().
*/
SigBuffer buf;
int i;
guint32 nparams = mb->parameters ? mono_array_length (mb->parameters): 0;
guint32 ngparams = mb->generic_params ? mono_array_length (mb->generic_params): 0;
guint32 notypes = mb->opt_types ? mono_array_length (mb->opt_types): 0;
guint32 idx;
sigbuffer_init (&buf, 32);
/* LAMESPEC: all the call conv spec is foobared */
idx = mb->call_conv & 0x60; /* has-this, explicit-this */
if (mb->call_conv & 2)
idx |= 0x5; /* vararg */
if (!(mb->attrs & METHOD_ATTRIBUTE_STATIC))
idx |= 0x20; /* hasthis */
if (ngparams)
idx |= 0x10; /* generic */
sigbuffer_add_byte (&buf, idx);
if (ngparams)
sigbuffer_add_value (&buf, ngparams);
sigbuffer_add_value (&buf, nparams + notypes);
encode_custom_modifiers (assembly, mb->return_modreq, mb->return_modopt, &buf);
encode_reflection_type (assembly, mb->rtype, &buf);
for (i = 0; i < nparams; ++i) {
MonoArray *modreq = NULL;
MonoArray *modopt = NULL;
MonoReflectionType *pt;
if (mb->param_modreq && (i < mono_array_length (mb->param_modreq)))
modreq = mono_array_get (mb->param_modreq, MonoArray*, i);
if (mb->param_modopt && (i < mono_array_length (mb->param_modopt)))
modopt = mono_array_get (mb->param_modopt, MonoArray*, i);
encode_custom_modifiers (assembly, modreq, modopt, &buf);
pt = mono_array_get (mb->parameters, MonoReflectionType*, i);
encode_reflection_type (assembly, pt, &buf);
}
if (notypes)
sigbuffer_add_byte (&buf, MONO_TYPE_SENTINEL);
for (i = 0; i < notypes; ++i) {
MonoReflectionType *pt;
pt = mono_array_get (mb->opt_types, MonoReflectionType*, i);
encode_reflection_type (assembly, pt, &buf);
}
idx = sigbuffer_add_to_blob_cached (assembly, &buf);
sigbuffer_free (&buf);
return idx;
}
static guint32
encode_locals (MonoDynamicImage *assembly, MonoReflectionILGen *ilgen)
{
MonoDynamicTable *table;
guint32 *values;
guint32 idx, sig_idx;
guint nl = mono_array_length (ilgen->locals);
SigBuffer buf;
int i;
sigbuffer_init (&buf, 32);
table = &assembly->tables [MONO_TABLE_STANDALONESIG];
idx = table->next_idx ++;
table->rows ++;
alloc_table (table, table->rows);
values = table->values + idx * MONO_STAND_ALONE_SIGNATURE_SIZE;
sigbuffer_add_value (&buf, 0x07);
sigbuffer_add_value (&buf, nl);
for (i = 0; i < nl; ++i) {
MonoReflectionLocalBuilder *lb = mono_array_get (ilgen->locals, MonoReflectionLocalBuilder*, i);
if (lb->is_pinned)
sigbuffer_add_value (&buf, MONO_TYPE_PINNED);
encode_reflection_type (assembly, lb->type, &buf);
}
sig_idx = sigbuffer_add_to_blob_cached (assembly, &buf);
sigbuffer_free (&buf);
values [MONO_STAND_ALONE_SIGNATURE] = sig_idx;
return idx;
}
static guint32
method_count_clauses (MonoReflectionILGen *ilgen)
{
guint32 num_clauses = 0;
int i;
MonoILExceptionInfo *ex_info;
for (i = 0; i < mono_array_length (ilgen->ex_handlers); ++i) {
ex_info = (MonoILExceptionInfo*)mono_array_addr (ilgen->ex_handlers, MonoILExceptionInfo, i);
if (ex_info->handlers)
num_clauses += mono_array_length (ex_info->handlers);
else
num_clauses++;
}
return num_clauses;
}
static MonoExceptionClause*
method_encode_clauses (MonoMemPool *mp, MonoDynamicImage *assembly, MonoReflectionILGen *ilgen, guint32 num_clauses)
{
MonoExceptionClause *clauses;
MonoExceptionClause *clause;
MonoILExceptionInfo *ex_info;
MonoILExceptionBlock *ex_block;
guint32 finally_start;
int i, j, clause_index;;
clauses = mp_g_new0 (mp, MonoExceptionClause, num_clauses);
clause_index = 0;
for (i = mono_array_length (ilgen->ex_handlers) - 1; i >= 0; --i) {
ex_info = (MonoILExceptionInfo*)mono_array_addr (ilgen->ex_handlers, MonoILExceptionInfo, i);
finally_start = ex_info->start + ex_info->len;
if (!ex_info->handlers)
continue;
for (j = 0; j < mono_array_length (ex_info->handlers); ++j) {
ex_block = (MonoILExceptionBlock*)mono_array_addr (ex_info->handlers, MonoILExceptionBlock, j);
clause = &(clauses [clause_index]);
clause->flags = ex_block->type;
clause->try_offset = ex_info->start;
if (ex_block->type == MONO_EXCEPTION_CLAUSE_FINALLY)
clause->try_len = finally_start - ex_info->start;
else
clause->try_len = ex_info->len;
clause->handler_offset = ex_block->start;
clause->handler_len = ex_block->len;
if (ex_block->extype) {
clause->data.catch_class = mono_class_from_mono_type (ex_block->extype->type);
} else {
if (ex_block->type == MONO_EXCEPTION_CLAUSE_FILTER)
clause->data.filter_offset = ex_block->filter_offset;
else
clause->data.filter_offset = 0;
}
finally_start = ex_block->start + ex_block->len;
clause_index ++;
}
}
return clauses;
}
static guint32
method_encode_code (MonoDynamicImage *assembly, ReflectionMethodBuilder *mb)
{
char flags = 0;
guint32 idx;
guint32 code_size;
gint32 max_stack, i;
gint32 num_locals = 0;
gint32 num_exception = 0;
gint maybe_small;
guint32 fat_flags;
char fat_header [12];
guint32 int_value;
guint16 short_value;
guint32 local_sig = 0;
guint32 header_size = 12;
MonoArray *code;
if ((mb->attrs & (METHOD_ATTRIBUTE_PINVOKE_IMPL | METHOD_ATTRIBUTE_ABSTRACT)) ||
(mb->iattrs & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)))
return 0;
/*if (mb->name)
g_print ("Encode method %s\n", mono_string_to_utf8 (mb->name));*/
if (mb->ilgen) {
code = mb->ilgen->code;
code_size = mb->ilgen->code_len;
max_stack = mb->ilgen->max_stack;
num_locals = mb->ilgen->locals ? mono_array_length (mb->ilgen->locals) : 0;
if (mb->ilgen->ex_handlers)
num_exception = method_count_clauses (mb->ilgen);
} else {
code = mb->code;
if (code == NULL){
char *name = mono_string_to_utf8 (mb->name);
char *str = g_strdup_printf ("Method %s does not have any IL associated", name);
MonoException *exception = mono_get_exception_argument (NULL, "a method does not have any IL associated");
g_free (str);
g_free (name);
mono_raise_exception (exception);
}
code_size = mono_array_length (code);
max_stack = 8; /* we probably need to run a verifier on the code... */
}
stream_data_align (&assembly->code);
/* check for exceptions, maxstack, locals */
maybe_small = (max_stack <= 8) && (!num_locals) && (!num_exception);
if (maybe_small) {
if (code_size < 64 && !(code_size & 1)) {
flags = (code_size << 2) | 0x2;
} else if (code_size < 32 && (code_size & 1)) {
flags = (code_size << 2) | 0x6; /* LAMESPEC: see metadata.c */
} else {
goto fat_header;
}
idx = mono_image_add_stream_data (&assembly->code, &flags, 1);
/* add to the fixup todo list */
if (mb->ilgen && mb->ilgen->num_token_fixups)
mono_g_hash_table_insert (assembly->token_fixups, mb->ilgen, GUINT_TO_POINTER (idx + 1));
mono_image_add_stream_data (&assembly->code, mono_array_addr (code, char, 0), code_size);
return assembly->text_rva + idx;
}
fat_header:
if (num_locals)
local_sig = MONO_TOKEN_SIGNATURE | encode_locals (assembly, mb->ilgen);
/*
* FIXME: need to set also the header size in fat_flags.
* (and more sects and init locals flags)
*/
fat_flags = 0x03;
if (num_exception)
fat_flags |= METHOD_HEADER_MORE_SECTS;
if (mb->init_locals)
fat_flags |= METHOD_HEADER_INIT_LOCALS;
fat_header [0] = fat_flags;
fat_header [1] = (header_size / 4 ) << 4;
short_value = GUINT16_TO_LE (max_stack);
memcpy (fat_header + 2, &short_value, 2);
int_value = GUINT32_TO_LE (code_size);
memcpy (fat_header + 4, &int_value, 4);
int_value = GUINT32_TO_LE (local_sig);
memcpy (fat_header + 8, &int_value, 4);
idx = mono_image_add_stream_data (&assembly->code, fat_header, 12);
/* add to the fixup todo list */