2 * metadata.c: Routines for accessing the metadata
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
18 #include "tabledefs.h"
19 #include "mono-endian.h"
21 #include "tokentype.h"
22 #include "metadata-internals.h"
23 #include "class-internals.h"
24 #include "verify-internals.h"
27 #include "debug-helpers.h"
28 #include <mono/utils/mono-error-internals.h>
29 #include <mono/utils/bsearch.h>
31 /* Auxiliary structure used for caching inflated signatures */
33 MonoMethodSignature *sig;
34 MonoGenericContext context;
35 } MonoInflatedMethodSignature;
37 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container, gboolean transient,
38 const char *ptr, const char **rptr);
40 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
41 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
42 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
43 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
44 gboolean signature_only);
45 static void free_generic_inst (MonoGenericInst *ginst);
46 static void free_generic_class (MonoGenericClass *ginst);
47 static void free_inflated_method (MonoMethodInflated *method);
48 static void free_inflated_signature (MonoInflatedMethodSignature *sig);
49 static void mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva, MonoMarshalSpec **marshal_spec, gboolean alloc_from_image);
52 * This enumeration is used to describe the data types in the metadata
63 /* Index into Blob heap */
66 /* Index into String heap */
72 /* Pointer into a table */
75 /* HasConstant:Parent pointer (Param, Field or Property) */
78 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
81 /* CustomAttributeType encoded index */
84 /* HasDeclSecurity index: TypeDef Method or Assembly */
87 /* Implementation coded index: File, Export AssemblyRef */
90 /* HasFieldMarshal coded index: Field or Param table */
93 /* MemberForwardedIndex: Field or Method */
96 /* TypeDefOrRef coded index: typedef, typeref, typespec */
99 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
102 /* MethodDefOrRef coded index: Method or Member Ref table */
105 /* HasSemantic coded index: Event or Property */
108 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
112 const static unsigned char TableSchemas [] = {
113 #define ASSEMBLY_SCHEMA_OFFSET 0
114 MONO_MT_UINT32, /* "HashId" }, */
115 MONO_MT_UINT16, /* "Major" }, */
116 MONO_MT_UINT16, /* "Minor" }, */
117 MONO_MT_UINT16, /* "BuildNumber" }, */
118 MONO_MT_UINT16, /* "RevisionNumber" }, */
119 MONO_MT_UINT32, /* "Flags" }, */
120 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
121 MONO_MT_STRING_IDX, /* "Name" }, */
122 MONO_MT_STRING_IDX, /* "Culture" }, */
125 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
126 MONO_MT_UINT32, /* "OSPlatformID" }, */
127 MONO_MT_UINT32, /* "OSMajor" }, */
128 MONO_MT_UINT32, /* "OSMinor" }, */
131 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
132 MONO_MT_UINT32, /* "Processor" }, */
135 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
136 MONO_MT_UINT16, /* "Major" }, */
137 MONO_MT_UINT16, /* "Minor" }, */
138 MONO_MT_UINT16, /* "Build" }, */
139 MONO_MT_UINT16, /* "Revision" }, */
140 MONO_MT_UINT32, /* "Flags" }, */
141 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
142 MONO_MT_STRING_IDX, /* "Name" }, */
143 MONO_MT_STRING_IDX, /* "Culture" }, */
144 MONO_MT_BLOB_IDX, /* "HashValue" }, */
147 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
148 MONO_MT_UINT32, /* "OSPlatformID" }, */
149 MONO_MT_UINT32, /* "OSMajorVersion" }, */
150 MONO_MT_UINT32, /* "OSMinorVersion" }, */
151 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
154 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
155 MONO_MT_UINT32, /* "Processor" }, */
156 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
159 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
160 MONO_MT_UINT16, /* "PackingSize" }, */
161 MONO_MT_UINT32, /* "ClassSize" }, */
162 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
165 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
166 MONO_MT_UINT8, /* "Type" }, */
167 MONO_MT_UINT8, /* "PaddingZero" }, */
168 MONO_MT_CONST_IDX, /* "Parent" }, */
169 MONO_MT_BLOB_IDX, /* "Value" }, */
172 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
173 MONO_MT_HASCAT_IDX, /* "Parent" }, */
174 MONO_MT_CAT_IDX, /* "Type" }, */
175 MONO_MT_BLOB_IDX, /* "Value" }, */
178 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
179 MONO_MT_UINT16, /* "Action" }, */
180 MONO_MT_HASDEC_IDX, /* "Parent" }, */
181 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
184 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
185 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
186 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
189 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
190 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
191 MONO_MT_STRING_IDX, /* "Name" }, */
192 MONO_MT_TDOR_IDX, /* "EventType" }, TypeDef or TypeRef or TypeSpec */
195 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
196 MONO_MT_TABLE_IDX, /* "Event" }, */
199 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
200 MONO_MT_UINT32, /* "Flags" }, */
201 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
202 MONO_MT_STRING_IDX, /* "TypeName" }, */
203 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
204 MONO_MT_IMPL_IDX, /* "Implementation" }, */
207 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
208 MONO_MT_UINT16, /* "Flags" }, */
209 MONO_MT_STRING_IDX, /* "Name" }, */
210 MONO_MT_BLOB_IDX, /* "Signature" }, */
213 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
214 MONO_MT_UINT32, /* "Offset" }, */
215 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
218 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
219 MONO_MT_HFM_IDX, /* "Parent" }, */
220 MONO_MT_BLOB_IDX, /* "NativeType" }, */
223 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
224 MONO_MT_UINT32, /* "RVA" }, */
225 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
228 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
229 MONO_MT_TABLE_IDX, /* "Field" }, */
232 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
233 MONO_MT_UINT32, /* "Flags" }, */
234 MONO_MT_STRING_IDX, /* "Name" }, */
235 MONO_MT_BLOB_IDX, /* "Value" }, */
238 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
239 MONO_MT_UINT16, /* "MappingFlag" }, */
240 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
241 MONO_MT_STRING_IDX, /* "ImportName" }, */
242 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
245 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
246 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
247 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
250 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
251 MONO_MT_UINT32, /* "Offset" }, */
252 MONO_MT_UINT32, /* "Flags" }, */
253 MONO_MT_STRING_IDX, /* "Name" }, */
254 MONO_MT_IMPL_IDX, /* "Implementation" }, */
257 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
258 MONO_MT_MRP_IDX, /* "Class" }, */
259 MONO_MT_STRING_IDX, /* "Name" }, */
260 MONO_MT_BLOB_IDX, /* "Signature" }, */
263 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
264 MONO_MT_UINT32, /* "RVA" }, */
265 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
266 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
267 MONO_MT_STRING_IDX, /* "Name" }, */
268 MONO_MT_BLOB_IDX, /* "Signature" }, */
269 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
272 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
273 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
274 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
275 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
278 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
279 MONO_MT_UINT16, /* "MethodSemantic" }, */
280 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
281 MONO_MT_HS_IDX, /* "Association" }, */
284 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
285 MONO_MT_TABLE_IDX, /* "Method" }, */
288 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
289 MONO_MT_UINT16, /* "Generation" }, */
290 MONO_MT_STRING_IDX, /* "Name" }, */
291 MONO_MT_GUID_IDX, /* "MVID" }, */
292 MONO_MT_GUID_IDX, /* "EncID" }, */
293 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
296 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
297 MONO_MT_STRING_IDX, /* "Name" }, */
300 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
301 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
302 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
305 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
306 MONO_MT_UINT16, /* "Flags" }, */
307 MONO_MT_UINT16, /* "Sequence" }, */
308 MONO_MT_STRING_IDX, /* "Name" }, */
311 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
312 MONO_MT_TABLE_IDX, /* "Param" }, */
315 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
316 MONO_MT_UINT16, /* "Flags" }, */
317 MONO_MT_STRING_IDX, /* "Name" }, */
318 MONO_MT_BLOB_IDX, /* "Type" }, */
321 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
322 MONO_MT_TABLE_IDX, /* "Property" }, */
325 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
326 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
327 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
330 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
331 MONO_MT_BLOB_IDX, /* "Signature" }, */
334 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
335 MONO_MT_UINT32, /* "Flags" }, */
336 MONO_MT_STRING_IDX, /* "Name" }, */
337 MONO_MT_STRING_IDX, /* "Namespace" }, */
338 MONO_MT_TDOR_IDX, /* "Extends" }, */
339 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
340 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
343 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
344 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
345 MONO_MT_STRING_IDX, /* "Name" }, */
346 MONO_MT_STRING_IDX, /* "Namespace" }, */
349 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
350 MONO_MT_BLOB_IDX, /* "Signature" }, */
353 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
354 MONO_MT_UINT16, /* "Number" }, */
355 MONO_MT_UINT16, /* "Flags" }, */
356 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
357 MONO_MT_STRING_IDX, /* "Name" }, */
360 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
361 MONO_MT_MDOR_IDX, /* "Method" }, */
362 MONO_MT_BLOB_IDX, /* "Signature" }, */
365 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
366 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
367 MONO_MT_TDOR_IDX, /* "Constraint" }, */
370 #define NULL_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
374 /* Must be the same order as MONO_TABLE_* */
375 const static unsigned char
376 table_description [] = {
377 MODULE_SCHEMA_OFFSET,
378 TYPEREF_SCHEMA_OFFSET,
379 TYPEDEF_SCHEMA_OFFSET,
380 FIELD_POINTER_SCHEMA_OFFSET,
382 METHOD_POINTER_SCHEMA_OFFSET,
383 METHOD_SCHEMA_OFFSET,
384 PARAM_POINTER_SCHEMA_OFFSET,
386 IFACEMAP_SCHEMA_OFFSET,
387 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
388 CONSTANT_SCHEMA_OFFSET,
389 CUSTOM_ATTR_SCHEMA_OFFSET,
390 FIELD_MARSHAL_SCHEMA_OFFSET,
391 DECL_SEC_SCHEMA_OFFSET,
392 CLASS_LAYOUT_SCHEMA_OFFSET,
393 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
394 STDALON_SIG_SCHEMA_OFFSET,
395 EVENTMAP_SCHEMA_OFFSET,
396 EVENT_POINTER_SCHEMA_OFFSET,
398 PROPERTY_MAP_SCHEMA_OFFSET,
399 PROPERTY_POINTER_SCHEMA_OFFSET,
400 PROPERTY_SCHEMA_OFFSET,
401 METHOD_SEMA_SCHEMA_OFFSET,
402 METHOD_IMPL_SCHEMA_OFFSET,
403 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
404 TYPESPEC_SCHEMA_OFFSET,
405 IMPLMAP_SCHEMA_OFFSET,
406 FIELD_RVA_SCHEMA_OFFSET,
409 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
410 ASSEMBLYPROC_SCHEMA_OFFSET,
411 ASSEMBLYOS_SCHEMA_OFFSET,
412 ASSEMBLYREF_SCHEMA_OFFSET,
413 ASSEMBLYREFPROC_SCHEMA_OFFSET,
414 ASSEMBLYREFOS_SCHEMA_OFFSET,
416 EXPORTED_TYPE_SCHEMA_OFFSET,
417 MANIFEST_SCHEMA_OFFSET,
418 NESTED_CLASS_SCHEMA_OFFSET,
419 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
420 METHOD_SPEC_SCHEMA_OFFSET,
421 GEN_CONSTRAINT_SCHEMA_OFFSET
424 #ifdef HAVE_ARRAY_ELEM_INIT
425 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
426 #define MSGSTRFIELD1(line) str##line
427 static const struct msgstr_t {
428 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
429 #include "mono/cil/tables.def"
432 #define TABLEDEF(a,b) b,
433 #include "mono/cil/tables.def"
436 static const gint16 tableidx [] = {
437 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
438 #include "mono/cil/tables.def"
443 #define TABLEDEF(a,b) b,
444 static const char* const
445 mono_tables_names [] = {
446 #include "mono/cil/tables.def"
453 * mono_meta_table_name:
454 * @table: table index
456 * Returns the name of the given ECMA metadata logical format table
457 * as described in ECMA 335, Partition II, Section 22.
459 * Returns: the name for the @table index
462 mono_meta_table_name (int table)
464 if ((table < 0) || (table > MONO_TABLE_LAST))
467 #ifdef HAVE_ARRAY_ELEM_INIT
468 return (const char*)&tablestr + tableidx [table];
470 return mono_tables_names [table];
474 /* The guy who wrote the spec for this should not be allowed near a
477 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
478 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
479 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
480 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
481 inverse of this mapping.
484 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
485 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
487 /* Reference: Partition II - 23.2.6 */
489 * mono_metadata_compute_size:
490 * @meta: metadata context
491 * @tableindex: metadata table number
492 * @result_bitfield: pointer to guint32 where to store additional info
494 * mono_metadata_compute_size() computes the lenght in bytes of a single
495 * row in a metadata table. The size of each column is encoded in the
496 * @result_bitfield return value along with the number of columns in the table.
497 * the resulting bitfield should be handed to the mono_metadata_table_size()
498 * and mono_metadata_table_count() macros.
499 * This is a Mono runtime internal only function.
502 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
504 guint32 bitfield = 0;
505 int size = 0, field_size = 0;
508 const unsigned char *description = TableSchemas + table_description [tableindex];
510 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
513 field_size = 4; break;
516 field_size = 2; break;
519 field_size = 1; break;
521 case MONO_MT_BLOB_IDX:
522 field_size = meta->idx_blob_wide ? 4 : 2; break;
524 case MONO_MT_STRING_IDX:
525 field_size = meta->idx_string_wide ? 4 : 2; break;
527 case MONO_MT_GUID_IDX:
528 field_size = meta->idx_guid_wide ? 4 : 2; break;
530 case MONO_MT_TABLE_IDX:
531 /* Uhm, a table index can point to other tables besides the current one
532 * so, it's not correct to use the rowcount of the current table to
533 * get the size for this column - lupus
535 switch (tableindex) {
536 case MONO_TABLE_ASSEMBLYREFOS:
538 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
539 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
541 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
542 case MONO_TABLE_CLASSLAYOUT:
544 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
545 case MONO_TABLE_EVENTMAP:
546 g_assert (i == 0 || i == 1);
547 field_size = i ? idx_size (MONO_TABLE_EVENT):
548 idx_size(MONO_TABLE_TYPEDEF);
550 case MONO_TABLE_EVENT_POINTER:
552 field_size = idx_size (MONO_TABLE_EVENT); break;
553 case MONO_TABLE_EXPORTEDTYPE:
555 /* the index is in another metadata file, so it must be 4 */
556 field_size = 4; break;
557 case MONO_TABLE_FIELDLAYOUT:
559 field_size = idx_size (MONO_TABLE_FIELD); break;
560 case MONO_TABLE_FIELDRVA:
562 field_size = idx_size (MONO_TABLE_FIELD); break;
563 case MONO_TABLE_FIELD_POINTER:
565 field_size = idx_size (MONO_TABLE_FIELD); break;
566 case MONO_TABLE_IMPLMAP:
568 field_size = idx_size (MONO_TABLE_MODULEREF); break;
569 case MONO_TABLE_INTERFACEIMPL:
571 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
572 case MONO_TABLE_METHOD:
574 field_size = idx_size (MONO_TABLE_PARAM); break;
575 case MONO_TABLE_METHODIMPL:
577 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
578 case MONO_TABLE_METHODSEMANTICS:
580 field_size = idx_size (MONO_TABLE_METHOD); break;
581 case MONO_TABLE_METHOD_POINTER:
583 field_size = idx_size (MONO_TABLE_METHOD); break;
584 case MONO_TABLE_NESTEDCLASS:
585 g_assert (i == 0 || i == 1);
586 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
587 case MONO_TABLE_PARAM_POINTER:
589 field_size = idx_size (MONO_TABLE_PARAM); break;
590 case MONO_TABLE_PROPERTYMAP:
591 g_assert (i == 0 || i == 1);
592 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
593 idx_size(MONO_TABLE_TYPEDEF);
595 case MONO_TABLE_PROPERTY_POINTER:
597 field_size = idx_size (MONO_TABLE_PROPERTY); break;
598 case MONO_TABLE_TYPEDEF:
599 g_assert (i == 4 || i == 5);
600 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
601 idx_size(MONO_TABLE_METHOD);
603 case MONO_TABLE_GENERICPARAM:
605 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
606 /*This is a coded token for 2 tables, so takes 1 bit */
607 field_size = rtsize (n, 16 - MONO_TYPEORMETHOD_BITS);
609 case MONO_TABLE_GENERICPARAMCONSTRAINT:
611 field_size = idx_size (MONO_TABLE_GENERICPARAM);
615 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
620 * HasConstant: ParamDef, FieldDef, Property
622 case MONO_MT_CONST_IDX:
623 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
624 meta->tables [MONO_TABLE_FIELD].rows);
625 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
627 /* 2 bits to encode tag */
628 field_size = rtsize (n, 16-2);
632 * HasCustomAttribute: points to any table but
635 case MONO_MT_HASCAT_IDX:
637 * We believe that since the signature and
638 * permission are indexing the Blob heap,
639 * we should consider the blob size first
641 /* I'm not a believer - lupus
642 if (meta->idx_blob_wide){
647 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
648 meta->tables [MONO_TABLE_FIELD].rows);
649 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
650 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
651 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
652 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
653 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
654 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
655 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
656 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
657 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
658 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
659 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
660 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
661 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
662 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
663 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
664 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
665 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
667 /* 5 bits to encode */
668 field_size = rtsize (n, 16-5);
672 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
673 * MemberRef and String.
675 case MONO_MT_CAT_IDX:
676 /* String is a heap, if it is wide, we know the size */
678 if (meta->idx_string_wide){
683 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
684 meta->tables [MONO_TABLE_TYPEDEF].rows);
685 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
686 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
688 /* 3 bits to encode */
689 field_size = rtsize (n, 16-3);
693 * HasDeclSecurity: Typedef, MethodDef, Assembly
695 case MONO_MT_HASDEC_IDX:
696 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
697 meta->tables [MONO_TABLE_METHOD].rows);
698 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
700 /* 2 bits to encode */
701 field_size = rtsize (n, 16-2);
705 * Implementation: File, AssemblyRef, ExportedType
707 case MONO_MT_IMPL_IDX:
708 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
709 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
710 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
712 /* 2 bits to encode tag */
713 field_size = rtsize (n, 16-2);
717 * HasFieldMarshall: FieldDef, ParamDef
719 case MONO_MT_HFM_IDX:
720 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
721 meta->tables [MONO_TABLE_PARAM].rows);
723 /* 1 bit used to encode tag */
724 field_size = rtsize (n, 16-1);
728 * MemberForwarded: FieldDef, MethodDef
731 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
732 meta->tables [MONO_TABLE_METHOD].rows);
734 /* 1 bit used to encode tag */
735 field_size = rtsize (n, 16-1);
739 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
741 * It is TypeDef, _TypeRef_, TypeSpec, instead.
743 case MONO_MT_TDOR_IDX:
744 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
745 meta->tables [MONO_TABLE_TYPEREF].rows);
746 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
748 /* 2 bits to encode */
749 field_size = rtsize (n, 16-2);
753 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
755 case MONO_MT_MRP_IDX:
756 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
757 meta->tables [MONO_TABLE_TYPEREF].rows);
758 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
759 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
760 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
762 /* 3 bits to encode */
763 field_size = rtsize (n, 16 - 3);
767 * MethodDefOrRef: MethodDef, MemberRef
769 case MONO_MT_MDOR_IDX:
770 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
771 meta->tables [MONO_TABLE_MEMBERREF].rows);
773 /* 1 bit used to encode tag */
774 field_size = rtsize (n, 16-1);
778 * HasSemantics: Property, Event
781 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
782 meta->tables [MONO_TABLE_EVENT].rows);
784 /* 1 bit used to encode tag */
785 field_size = rtsize (n, 16-1);
789 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
792 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
793 meta->tables [MONO_TABLE_MODULEREF].rows);
794 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
795 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
797 /* 2 bits used to encode tag (ECMA spec claims 3) */
798 field_size = rtsize (n, 16 - 2);
803 * encode field size as follows (we just need to
810 bitfield |= (field_size-1) << shift;
813 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
816 *result_bitfield = (i << 24) | bitfield;
821 * mono_metadata_compute_table_bases:
822 * @meta: metadata context to compute table values
824 * Computes the table bases for the metadata structure.
825 * This is an internal function used by the image loader code.
828 mono_metadata_compute_table_bases (MonoImage *meta)
831 const char *base = meta->tables_base;
833 for (i = 0; i < MONO_TABLE_NUM; i++) {
834 MonoTableInfo *table = &meta->tables [i];
835 if (table->rows == 0)
838 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
840 base += table->rows * table->row_size;
845 * mono_metadata_locate:
846 * @meta: metadata context
847 * @table: table code.
848 * @idx: index of element to retrieve from @table.
850 * Returns: a pointer to the @idx element in the metadata table
851 * whose code is @table.
854 mono_metadata_locate (MonoImage *meta, int table, int idx)
856 /* idx == 0 refers always to NULL */
857 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
859 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
863 * mono_metadata_locate_token:
864 * @meta: metadata context
865 * @token: metadata token
867 * Returns: a pointer to the data in the metadata represented by the
871 mono_metadata_locate_token (MonoImage *meta, guint32 token)
873 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
877 * mono_metadata_string_heap:
878 * @meta: metadata context
879 * @index: index into the string heap.
881 * Returns: an in-memory pointer to the @index in the string heap.
884 mono_metadata_string_heap (MonoImage *meta, guint32 index)
886 g_assert (index < meta->heap_strings.size);
887 g_return_val_if_fail (index < meta->heap_strings.size, "");
888 return meta->heap_strings.data + index;
892 * mono_metadata_user_string:
893 * @meta: metadata context
894 * @index: index into the user string heap.
896 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
899 mono_metadata_user_string (MonoImage *meta, guint32 index)
901 g_assert (index < meta->heap_us.size);
902 g_return_val_if_fail (index < meta->heap_us.size, "");
903 return meta->heap_us.data + index;
907 * mono_metadata_blob_heap:
908 * @meta: metadata context
909 * @index: index into the blob.
911 * Returns: an in-memory pointer to the @index in the Blob heap.
914 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
916 g_assert (index < meta->heap_blob.size);
917 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
918 return meta->heap_blob.data + index;
922 * mono_metadata_guid_heap:
923 * @meta: metadata context
924 * @index: index into the guid heap.
926 * Returns: an in-memory pointer to the @index in the guid heap.
929 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
932 index *= 16; /* adjust for guid size and 1-based index */
933 g_return_val_if_fail (index < meta->heap_guid.size, "");
934 return meta->heap_guid.data + index;
937 static const unsigned char *
938 dword_align (const unsigned char *ptr)
940 #if SIZEOF_VOID_P == 8
941 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
943 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
948 * mono_metadata_decode_row:
949 * @t: table to extract information from.
950 * @idx: index in table.
951 * @res: array of @res_size cols to store the results in
953 * This decompresses the metadata element @idx in table @t
954 * into the guint32 @res array that has res_size elements
957 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
959 guint32 bitfield = t->size_bitfield;
960 int i, count = mono_metadata_table_count (bitfield);
963 g_assert (idx < t->rows);
965 data = t->base + idx * t->row_size;
967 g_assert (res_size == count);
969 for (i = 0; i < count; i++) {
970 int n = mono_metadata_table_size (bitfield, i);
974 res [i] = *data; break;
976 res [i] = read16 (data); break;
978 res [i] = read32 (data); break;
980 g_assert_not_reached ();
987 * mono_metadata_decode_row_col:
988 * @t: table to extract information from.
989 * @idx: index for row in table.
990 * @col: column in the row.
992 * This function returns the value of column @col from the @idx
993 * row in the table @t.
996 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
998 guint32 bitfield = t->size_bitfield;
1000 register const char *data;
1003 g_assert (idx < t->rows);
1004 g_assert (col < mono_metadata_table_count (bitfield));
1005 data = t->base + idx * t->row_size;
1007 n = mono_metadata_table_size (bitfield, 0);
1008 for (i = 0; i < col; ++i) {
1010 n = mono_metadata_table_size (bitfield, i + 1);
1016 return read16 (data);
1018 return read32 (data);
1020 g_assert_not_reached ();
1026 * mono_metadata_decode_blob_size:
1027 * @ptr: pointer to a blob object
1028 * @rptr: the new position of the pointer
1030 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1032 * Returns: the size of the blob object
1035 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1037 const unsigned char *ptr = (const unsigned char *)xptr;
1040 if ((*ptr & 0x80) == 0){
1041 size = ptr [0] & 0x7f;
1043 } else if ((*ptr & 0x40) == 0){
1044 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1047 size = ((ptr [0] & 0x1f) << 24) +
1059 * mono_metadata_decode_value:
1060 * @ptr: pointer to decode from
1061 * @rptr: the new position of the pointer
1063 * This routine decompresses 32-bit values as specified in the "Blob and
1064 * Signature" section (22.2)
1066 * Returns: the decoded value
1069 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1071 const unsigned char *ptr = (const unsigned char *) _ptr;
1072 unsigned char b = *ptr;
1075 if ((b & 0x80) == 0){
1078 } else if ((b & 0x40) == 0){
1079 len = ((b & 0x3f) << 8 | ptr [1]);
1082 len = ((b & 0x1f) << 24) |
1095 * mono_metadata_decode_signed_value:
1096 * @ptr: pointer to decode from
1097 * @rptr: the new position of the pointer
1099 * This routine decompresses 32-bit signed values
1100 * (not specified in the spec)
1102 * Returns: the decoded value
1105 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1107 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1108 gint32 ival = uval >> 1;
1111 /* ival is a truncated 2's complement negative number. */
1113 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1116 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1117 return ival - 0x2000;
1118 if (ival < 0x10000000)
1119 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1120 return ival - 0x10000000;
1121 g_assert (ival < 0x20000000);
1122 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1123 return ival - 0x20000000;
1127 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1128 * using the *Ptr tables in uncompressed metadata, if they are available.
1130 * FIXME: The caller is not forced to call this function, which is error-prone, since
1131 * forgetting to call it would only show up as a bug on uncompressed metadata.
1134 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1136 if (!image->uncompressed_metadata)
1140 case MONO_TABLE_METHOD:
1141 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1142 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1145 case MONO_TABLE_FIELD:
1146 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1147 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1150 case MONO_TABLE_EVENT:
1151 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1152 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1155 case MONO_TABLE_PROPERTY:
1156 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1157 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1160 case MONO_TABLE_PARAM:
1161 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1162 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1171 * mono_metadata_decode_table_row:
1173 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1174 * uncompressed metadata into account, so it should be used to access the
1175 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1176 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1179 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1181 if (image->uncompressed_metadata)
1182 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1184 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1188 * mono_metadata_decode_table_row_col:
1190 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1191 * uncompressed metadata into account, so it should be used to access the
1192 * Method, Field, Param and Event tables.
1194 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1196 if (image->uncompressed_metadata)
1197 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1199 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1203 * mono_metadata_parse_typedef_or_ref:
1204 * @m: a metadata context.
1205 * @ptr: a pointer to an encoded TypedefOrRef in @m
1206 * @rptr: pointer updated to match the end of the decoded stream
1208 * Returns: a token valid in the @m metadata decoded from
1209 * the compressed representation.
1212 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1215 token = mono_metadata_decode_value (ptr, &ptr);
1218 return mono_metadata_token_from_dor (token);
1222 * mono_metadata_parse_custom_mod:
1223 * @m: a metadata context.
1224 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1225 * @ptr: a pointer to (possibly) the start of a custom modifier list
1226 * @rptr: pointer updated to match the end of the decoded stream
1228 * Checks if @ptr points to a type custom modifier compressed representation.
1230 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1233 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1235 MonoCustomMod local;
1236 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1239 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1240 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1247 * mono_metadata_parse_array_internal:
1248 * @m: a metadata context.
1249 * @transient: whenever to allocate data from the heap
1250 * @ptr: a pointer to an encoded array description.
1251 * @rptr: pointer updated to match the end of the decoded stream
1253 * Decodes the compressed array description found in the metadata @m at @ptr.
1255 * Returns: a #MonoArrayType structure describing the array type
1256 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1257 * on the value of @transient.
1259 * LOCKING: Acquires the loader lock
1261 static MonoArrayType *
1262 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1263 gboolean transient, const char *ptr, const char **rptr)
1266 MonoArrayType *array;
1269 array = transient ? g_malloc0 (sizeof (MonoArrayType)) : mono_image_alloc0 (m, sizeof (MonoArrayType));
1270 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1273 array->eklass = mono_class_from_mono_type (etype);
1274 array->rank = mono_metadata_decode_value (ptr, &ptr);
1276 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1277 if (array->numsizes)
1278 array->sizes = transient ? g_malloc0 (sizeof (int) * array->numsizes) : mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1279 for (i = 0; i < array->numsizes; ++i)
1280 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1282 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1283 if (array->numlobounds)
1284 array->lobounds = transient ? g_malloc0 (sizeof (int) * array->numlobounds) : mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1285 for (i = 0; i < array->numlobounds; ++i)
1286 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1294 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1295 const char *ptr, const char **rptr)
1297 return mono_metadata_parse_array_internal (m, container, FALSE, ptr, rptr);
1301 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1303 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1307 * mono_metadata_free_array:
1308 * @array: array description
1310 * Frees the array description returned from mono_metadata_parse_array().
1313 mono_metadata_free_array (MonoArrayType *array)
1315 g_free (array->sizes);
1316 g_free (array->lobounds);
1321 * need to add common field and param attributes combinations:
1324 * public static literal
1327 * private static literal
1329 static const MonoType
1331 /* data, attrs, type, nmods, byref, pinned */
1332 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1333 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1334 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1335 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1336 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1337 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1338 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1339 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1340 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1341 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1342 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1343 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1344 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1345 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1346 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1347 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1348 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1349 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1350 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1351 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1352 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1353 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1354 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1355 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1356 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1357 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1358 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1359 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1360 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1361 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1362 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1363 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1364 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1365 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1368 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1370 static GHashTable *type_cache = NULL;
1371 static int next_generic_inst_id = 0;
1373 static MonoImageSet *mscorlib_image_set;
1374 static GPtrArray *image_sets;
1376 static guint mono_generic_class_hash (gconstpointer data);
1379 * MonoTypes with modifies are never cached, so we never check or use that field.
1382 mono_type_hash (gconstpointer data)
1384 const MonoType *type = (const MonoType *) data;
1385 if (type->type == MONO_TYPE_GENERICINST)
1386 return mono_generic_class_hash (type->data.generic_class);
1388 return type->type | (type->byref << 8) | (type->attrs << 9);
1392 mono_type_equal (gconstpointer ka, gconstpointer kb)
1394 const MonoType *a = (const MonoType *) ka;
1395 const MonoType *b = (const MonoType *) kb;
1397 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1399 /* need other checks */
1404 mono_metadata_generic_inst_hash (gconstpointer data)
1406 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1410 for (i = 0; i < ginst->type_argc; ++i) {
1412 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1415 return hash ^ (ginst->is_open << 8);
1419 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1423 #ifndef MONO_SMALL_CONFIG
1424 if (a->id && b->id) {
1427 if (!signature_only)
1432 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1434 for (i = 0; i < a->type_argc; ++i) {
1435 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1442 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1444 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1445 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1447 return mono_generic_inst_equal_full (a, b, FALSE);
1451 mono_generic_class_hash (gconstpointer data)
1453 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1454 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1457 hash += gclass->is_tb_open;
1458 hash += mono_metadata_generic_context_hash (&gclass->context);
1464 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1466 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1467 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1469 return _mono_metadata_generic_class_equal (a, b, FALSE);
1473 * mono_metadata_init:
1475 * Initialize the global variables of this module.
1476 * This is a Mono runtime internal function.
1479 mono_metadata_init (void)
1483 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1485 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1486 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1490 * mono_metadata_cleanup:
1492 * Free all resources used by this module.
1493 * This is a Mono runtime internal function.
1496 mono_metadata_cleanup (void)
1498 g_hash_table_destroy (type_cache);
1500 g_ptr_array_free (image_sets, TRUE);
1505 * mono_metadata_parse_type:
1506 * @m: metadata context
1507 * @mode: king of type that may be found at @ptr
1508 * @opt_attrs: optional attributes to store in the returned type
1509 * @ptr: pointer to the type representation
1510 * @rptr: pointer updated to match the end of the decoded stream
1511 * @transient: whenever to allocate the result from the heap or from a mempool
1513 * Decode a compressed type description found at @ptr in @m.
1514 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1515 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1516 * This function can be used to decode type descriptions in method signatures,
1517 * field signatures, locals signatures etc.
1519 * To parse a generic type, `generic_container' points to the current class'es
1520 * (the `generic_container' field in the MonoClass) or the current generic method's
1521 * (stored in image->property_hash) generic container.
1522 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1523 * this MonoGenericContainer.
1525 * LOCKING: Acquires the loader lock.
1527 * Returns: a #MonoType structure representing the decoded type.
1530 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1531 short opt_attrs, gboolean transient, const char *ptr, const char **rptr)
1533 MonoType *type, *cached;
1535 gboolean byref = FALSE;
1536 gboolean pinned = FALSE;
1537 const char *tmp_ptr;
1542 * According to the spec, custom modifiers should come before the byref
1543 * flag, but the IL produced by ilasm from the following signature:
1544 * object modopt(...) &
1545 * starts with a byref flag, followed by the modifiers. (bug #49802)
1546 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1547 * it would be better to treat byref as real type constructor instead of
1549 * Also, pinned should come before anything else, but some MSV++ produced
1550 * assemblies violate this (#bug 61990).
1553 /* Count the modifiers first */
1558 case MONO_TYPE_PINNED:
1559 case MONO_TYPE_BYREF:
1562 case MONO_TYPE_CMOD_REQD:
1563 case MONO_TYPE_CMOD_OPT:
1565 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1575 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1576 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1577 type->num_mods = count;
1579 g_warning ("got more than 64 modifiers in type");
1582 memset (type, 0, MONO_SIZEOF_TYPE);
1585 /* Parse pinned, byref and custom modifiers */
1590 case MONO_TYPE_PINNED:
1594 case MONO_TYPE_BYREF:
1598 case MONO_TYPE_CMOD_REQD:
1599 case MONO_TYPE_CMOD_OPT:
1600 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1608 type->attrs = opt_attrs;
1609 type->byref = byref;
1610 type->pinned = pinned ? 1 : 0;
1612 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr)) {
1619 if (!type->num_mods && !transient) {
1620 /* no need to free type here, because it is on the stack */
1621 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1622 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1624 /* Consider the case:
1626 class Foo<T> { class Bar {} }
1627 class Test : Foo<Test>.Bar {}
1629 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1630 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1632 We ensure that the MonoClass is in a state that we can canonicalize to:
1634 klass->byval_arg.data.klass == klass
1635 klass->this_arg.data.klass == klass
1637 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1639 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1640 of a MonoClass which currently holds the loader lock. 'type' is local.
1642 if (ret->data.klass == type->data.klass) {
1646 /* No need to use locking since nobody is modifying the hash table */
1647 if ((cached = g_hash_table_lookup (type_cache, type))) {
1652 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1654 if (type == &stype) {
1655 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1656 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1662 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1663 short opt_attrs, const char *ptr, const char **rptr)
1665 return mono_metadata_parse_type_internal (m, container, mode, opt_attrs, FALSE, ptr, rptr);
1669 * LOCKING: Acquires the loader lock.
1672 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1673 const char *ptr, const char **rptr)
1675 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1679 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1681 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1682 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1683 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1685 if (def < methodt->rows)
1686 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1688 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1690 for (i = param_index; i < lastp; ++i) {
1691 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1700 * mono_metadata_get_param_attrs:
1702 * @m The image to loader parameter attributes from
1703 * @def method def token (one based)
1704 * @param_count number of params to decode including the return value
1706 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1707 * returned memory needs to be freed by the caller. If all the param attributes are
1708 * 0, then NULL is returned.
1711 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1713 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1714 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1715 guint32 cols [MONO_PARAM_SIZE];
1716 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1719 if (def < methodt->rows)
1720 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1722 lastp = paramt->rows + 1;
1724 for (i = param_index; i < lastp; ++i) {
1725 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1726 if (cols [MONO_PARAM_FLAGS]) {
1728 pattrs = g_new0 (int, param_count);
1729 /* at runtime we just ignore this kind of malformed file:
1730 * the verifier can signal the error to the user
1732 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1734 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1742 * mono_metadata_parse_signature_full:
1743 * @image: metadata context
1744 * @generic_container: generic container
1745 * @toke: metadata token
1747 * Decode a method signature stored in the STANDALONESIG table
1749 * LOCKING: Assumes the loader lock is held.
1751 * Returns: a MonoMethodSignature describing the signature.
1753 MonoMethodSignature*
1754 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1756 MonoTableInfo *tables = image->tables;
1757 guint32 idx = mono_metadata_token_index (token);
1762 return mono_lookup_dynamic_token (image, token, NULL);
1764 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1766 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1768 ptr = mono_metadata_blob_heap (image, sig);
1769 mono_metadata_decode_blob_size (ptr, &ptr);
1771 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1775 * mono_metadata_parse_signature:
1776 * @image: metadata context
1777 * @toke: metadata token
1779 * Decode a method signature stored in the STANDALONESIG table
1781 * Returns: a MonoMethodSignature describing the signature.
1783 MonoMethodSignature*
1784 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1786 return mono_metadata_parse_signature_full (image, NULL, token);
1790 * mono_metadata_signature_alloc:
1791 * @image: metadata context
1792 * @nparmas: number of parameters in the signature
1794 * Allocate a MonoMethodSignature structure with the specified number of params.
1795 * The return type and the params types need to be filled later.
1796 * This is a Mono runtime internal function.
1798 * LOCKING: Assumes the loader lock is held.
1800 * Returns: the new MonoMethodSignature structure.
1802 MonoMethodSignature*
1803 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1805 MonoMethodSignature *sig;
1807 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1808 sig->param_count = nparams;
1809 sig->sentinelpos = -1;
1814 static MonoMethodSignature*
1815 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1818 MonoMethodSignature *ret;
1819 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1822 ret = mono_image_alloc (image, sigsize);
1824 ret = mono_mempool_alloc (mp, sigsize);
1826 ret = g_malloc (sigsize);
1828 memcpy (ret, sig, sigsize);
1832 MonoMethodSignature*
1833 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1835 return mono_metadata_signature_dup_internal (image, NULL, sig);
1838 /*The mempool is accessed without synchronization*/
1839 MonoMethodSignature*
1840 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1842 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1846 * mono_metadata_signature_dup:
1847 * @sig: method signature
1849 * Duplicate an existing MonoMethodSignature so it can be modified.
1850 * This is a Mono runtime internal function.
1852 * Returns: the new MonoMethodSignature structure.
1854 MonoMethodSignature*
1855 mono_metadata_signature_dup (MonoMethodSignature *sig)
1857 return mono_metadata_signature_dup_full (NULL, sig);
1861 * mono_metadata_signature_size:
1863 * Return the amount of memory allocated to SIG.
1866 mono_metadata_signature_size (MonoMethodSignature *sig)
1868 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1872 * mono_metadata_parse_method_signature:
1873 * @m: metadata context
1874 * @generic_container: generics container
1875 * @def: the MethodDef index or 0 for Ref signatures.
1876 * @ptr: pointer to the signature metadata representation
1877 * @rptr: pointer updated to match the end of the decoded stream
1879 * Decode a method signature stored at @ptr.
1880 * This is a Mono runtime internal function.
1882 * LOCKING: Assumes the loader lock is held.
1884 * Returns: a MonoMethodSignature describing the signature.
1886 MonoMethodSignature *
1887 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1888 int def, const char *ptr, const char **rptr)
1890 MonoMethodSignature *method;
1891 int i, *pattrs = NULL;
1892 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1893 guint32 gen_param_count = 0;
1894 gboolean is_open = FALSE;
1897 gen_param_count = 1;
1902 call_convention = *ptr & 0x0F;
1904 if (gen_param_count)
1905 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1906 param_count = mono_metadata_decode_value (ptr, &ptr);
1909 pattrs = mono_metadata_get_param_attrs (m, def, param_count + 1); /*Must be + 1 since signature's param count doesn't account for the return value */
1911 method = mono_metadata_signature_alloc (m, param_count);
1912 method->hasthis = hasthis;
1913 method->explicit_this = explicit_this;
1914 method->call_convention = call_convention;
1915 method->generic_param_count = gen_param_count;
1917 if (call_convention != 0xa) {
1918 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1920 mono_metadata_free_method_signature (method);
1924 is_open = mono_class_is_open_constructed_type (method->ret);
1927 for (i = 0; i < method->param_count; ++i) {
1928 if (*ptr == MONO_TYPE_SENTINEL) {
1929 if (method->call_convention != MONO_CALL_VARARG || def) {
1930 g_warning ("found sentinel for methoddef or no vararg method 0x%08x on image %s", def, m->name);
1934 if (method->sentinelpos >= 0) {
1935 g_warning ("found sentinel twice in the same signature for method 0x%08x on image %s", def, m->name);
1939 method->sentinelpos = i;
1942 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1943 if (!method->params [i]) {
1944 mono_metadata_free_method_signature (method);
1949 is_open = mono_class_is_open_constructed_type (method->params [i]);
1952 /* The sentinel could be missing if the caller does not pass any additional arguments */
1953 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1954 method->sentinelpos = method->param_count;
1956 method->has_type_parameters = is_open;
1958 if (def && (method->call_convention == MONO_CALL_VARARG))
1959 method->sentinelpos = method->param_count;
1966 * Add signature to a cache and increase ref count...
1973 * mono_metadata_parse_method_signature:
1974 * @m: metadata context
1975 * @def: the MethodDef index or 0 for Ref signatures.
1976 * @ptr: pointer to the signature metadata representation
1977 * @rptr: pointer updated to match the end of the decoded stream
1979 * Decode a method signature stored at @ptr.
1980 * This is a Mono runtime internal function.
1982 * LOCKING: Assumes the loader lock is held.
1984 * Returns: a MonoMethodSignature describing the signature.
1986 MonoMethodSignature *
1987 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1989 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1993 * mono_metadata_free_method_signature:
1994 * @sig: signature to destroy
1996 * Free the memory allocated in the signature @sig.
1997 * This method needs to be robust and work also on partially-built
1998 * signatures, so it does extra checks.
2001 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2003 /* Everything is allocated from mempools */
2007 mono_metadata_free_type (sig->ret);
2008 for (i = 0; i < sig->param_count; ++i) {
2009 if (sig->params [i])
2010 mono_metadata_free_type (sig->params [i]);
2016 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2020 /* Allocated in inflate_generic_signature () */
2022 mono_metadata_free_type (sig->ret);
2023 for (i = 0; i < sig->param_count; ++i) {
2024 if (sig->params [i])
2025 mono_metadata_free_type (sig->params [i]);
2031 inflated_method_equal (gconstpointer a, gconstpointer b)
2033 const MonoMethodInflated *ma = a;
2034 const MonoMethodInflated *mb = b;
2035 if (ma->declaring != mb->declaring)
2037 if (ma->method.method.is_mb_open != mb->method.method.is_mb_open)
2039 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2043 inflated_method_hash (gconstpointer a)
2045 const MonoMethodInflated *ma = a;
2046 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->method.method.is_mb_open;
2050 inflated_signature_equal (gconstpointer a, gconstpointer b)
2052 const MonoInflatedMethodSignature *sig1 = a;
2053 const MonoInflatedMethodSignature *sig2 = b;
2055 /* sig->sig is assumed to be canonized */
2056 if (sig1->sig != sig2->sig)
2058 /* The generic instances are canonized */
2059 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2063 inflated_signature_hash (gconstpointer a)
2065 const MonoInflatedMethodSignature *sig = a;
2067 /* sig->sig is assumed to be canonized */
2068 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2072 dump_ginst (MonoGenericInst *ginst)
2077 g_print ("Ginst: <");
2078 for (i = 0; i < ginst->type_argc; ++i) {
2081 name = mono_type_get_name (ginst->type_argv [i]);
2082 g_print ("%s", name);
2088 static gboolean type_in_image (MonoType *type, MonoImage *image);
2091 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2093 gpointer iter = NULL;
2096 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2097 if (type_in_image (p, image))
2100 return type_in_image (mono_signature_get_return_type (sig), image);
2104 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2108 for (i = 0; i < ginst->type_argc; ++i) {
2109 if (type_in_image (ginst->type_argv [i], image))
2117 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2119 return gclass->container_class->image == image ||
2120 ginst_in_image (gclass->context.class_inst, image);
2124 type_in_image (MonoType *type, MonoImage *image)
2127 switch (type->type) {
2128 case MONO_TYPE_GENERICINST:
2129 return gclass_in_image (type->data.generic_class, image);
2131 type = type->data.type;
2133 case MONO_TYPE_SZARRAY:
2134 type = &type->data.klass->byval_arg;
2136 case MONO_TYPE_ARRAY:
2137 type = &type->data.array->eklass->byval_arg;
2139 case MONO_TYPE_FNPTR:
2140 return signature_in_image (type->data.method, image);
2141 case MONO_TYPE_VAR: {
2142 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2144 g_assert (!container->is_method);
2146 * FIXME: The following check is here solely
2147 * for monodis, which uses the internal
2149 * mono_metadata_load_generic_params(). The
2150 * caller of that function needs to fill in
2151 * owner->klass or owner->method of the
2152 * returned struct, but monodis doesn't do
2153 * that. The image unloading depends on that,
2154 * however, so a crash results without this
2157 if (!container->owner.klass)
2158 return container->image == image;
2159 return container->owner.klass->image == image;
2161 return type->data.generic_param->image == image;
2164 case MONO_TYPE_MVAR: {
2165 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2166 if (type->data.generic_param->image == image)
2169 g_assert (container->is_method);
2170 if (!container->owner.method)
2171 /* RefEmit created generic param whose method is not finished */
2172 return container->image == image;
2173 return container->owner.method->klass->image == image;
2175 return type->data.generic_param->image == image;
2179 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2180 return image == mono_class_from_mono_type (type)->image;
2187 * Return a MonoImageSet representing the set of images in IMAGES.
2189 * LOCKING: Assumes the loader lock is held.
2191 static MonoImageSet*
2192 get_image_set (MonoImage **images, int nimages)
2199 image_sets = g_ptr_array_new ();
2202 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2203 return mscorlib_image_set;
2205 /* Happens with empty generic instances */
2207 return mscorlib_image_set;
2209 if (images [0] == mono_defaults.corlib && nimages > 1)
2210 l = images [1]->image_sets;
2212 l = images [0]->image_sets;
2215 for (; l; l = l->next) {
2218 if (set->nimages == nimages) {
2219 for (j = 0; j < nimages; ++j) {
2220 for (k = 0; k < nimages; ++k)
2221 if (set->images [k] == images [j])
2235 set = g_new0 (MonoImageSet, 1);
2236 set->nimages = nimages;
2237 set->images = g_new0 (MonoImage*, nimages);
2238 InitializeCriticalSection (&set->lock);
2239 for (i = 0; i < nimages; ++i)
2240 set->images [i] = images [i];
2241 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2242 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2243 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2244 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2246 for (i = 0; i < nimages; ++i)
2247 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2249 g_ptr_array_add (image_sets, set);
2252 if (nimages == 1 && images [0] == mono_defaults.corlib)
2253 mscorlib_image_set = set;
2259 delete_image_set (MonoImageSet *set)
2263 g_hash_table_destroy (set->gclass_cache);
2264 g_hash_table_destroy (set->ginst_cache);
2265 g_hash_table_destroy (set->gmethod_cache);
2266 g_hash_table_destroy (set->gsignature_cache);
2268 for (i = 0; i < set->nimages; ++i)
2269 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2271 g_ptr_array_remove (image_sets, set);
2274 mono_mempool_destroy (set->mempool);
2275 g_free (set->images);
2276 DeleteCriticalSection (&set->lock);
2281 mono_image_set_lock (MonoImageSet *set)
2283 EnterCriticalSection (&set->lock);
2287 mono_image_set_unlock (MonoImageSet *set)
2289 LeaveCriticalSection (&set->lock);
2293 mono_image_set_alloc (MonoImageSet *set, guint size)
2297 mono_image_set_lock (set);
2299 set->mempool = mono_mempool_new_size (1024);
2300 res = mono_mempool_alloc (set->mempool, size);
2301 mono_image_set_unlock (set);
2307 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2311 mono_image_set_lock (set);
2313 set->mempool = mono_mempool_new_size (1024);
2314 res = mono_mempool_alloc0 (set->mempool, size);
2315 mono_image_set_unlock (set);
2321 mono_image_set_strdup (MonoImageSet *set, const char *s)
2325 mono_image_set_lock (set);
2327 set->mempool = mono_mempool_new_size (1024);
2328 res = mono_mempool_strdup (set->mempool, s);
2329 mono_image_set_unlock (set);
2335 * Structure used by the collect_..._images functions to store the image list.
2338 MonoImage *image_buf [64];
2340 int nimages, images_len;
2344 collect_data_init (CollectData *data)
2346 data->images = data->image_buf;
2347 data->images_len = 64;
2352 collect_data_free (CollectData *data)
2354 if (data->images != data->image_buf)
2355 g_free (data->images);
2359 enlarge_data (CollectData *data)
2361 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2362 MonoImage **d = g_new (MonoImage *, new_len);
2365 g_assert_not_reached ();
2366 memcpy (d, data->images, data->images_len);
2367 if (data->images != data->image_buf)
2368 g_free (data->images);
2370 data->images_len = new_len;
2374 add_image (MonoImage *image, CollectData *data)
2378 /* The arrays are small, so use a linear search instead of a hash table */
2379 for (i = 0; i < data->nimages; ++i)
2380 if (data->images [i] == image)
2383 if (data->nimages == data->images_len)
2384 enlarge_data (data);
2386 data->images [data->nimages ++] = image;
2390 collect_type_images (MonoType *type, CollectData *data);
2393 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2397 for (i = 0; i < ginst->type_argc; ++i) {
2398 collect_type_images (ginst->type_argv [i], data);
2403 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2405 add_image (gclass->container_class->image, data);
2406 if (gclass->context.class_inst)
2407 collect_ginst_images (gclass->context.class_inst, data);
2411 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2413 gpointer iter = NULL;
2416 collect_type_images (mono_signature_get_return_type (sig), data);
2417 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2418 collect_type_images (p, data);
2422 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2424 collect_signature_images (sig->sig, data);
2425 if (sig->context.class_inst)
2426 collect_ginst_images (sig->context.class_inst, data);
2427 if (sig->context.method_inst)
2428 collect_ginst_images (sig->context.method_inst, data);
2432 collect_method_images (MonoMethodInflated *method, CollectData *data)
2434 MonoMethod *m = method->declaring;
2436 add_image (method->declaring->klass->image, data);
2437 if (method->context.class_inst)
2438 collect_ginst_images (method->context.class_inst, data);
2439 if (method->context.method_inst)
2440 collect_ginst_images (method->context.method_inst, data);
2442 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2444 if (m->klass->image->dynamic)
2445 collect_signature_images (mono_method_signature (m), data);
2449 collect_type_images (MonoType *type, CollectData *data)
2452 switch (type->type) {
2453 case MONO_TYPE_GENERICINST:
2454 collect_gclass_images (type->data.generic_class, data);
2457 type = type->data.type;
2459 case MONO_TYPE_SZARRAY:
2460 type = &type->data.klass->byval_arg;
2462 case MONO_TYPE_ARRAY:
2463 type = &type->data.array->eklass->byval_arg;
2465 case MONO_TYPE_FNPTR:
2466 //return signature_in_image (type->data.method, image);
2467 g_assert_not_reached ();
2468 case MONO_TYPE_VAR: {
2469 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2471 g_assert (!container->is_method);
2473 * FIXME: The following check is here solely
2474 * for monodis, which uses the internal
2476 * mono_metadata_load_generic_params(). The
2477 * caller of that function needs to fill in
2478 * owner->klass or owner->method of the
2479 * returned struct, but monodis doesn't do
2480 * that. The image unloading depends on that,
2481 * however, so a crash results without this
2484 if (!container->owner.klass)
2485 add_image (container->image, data);
2487 add_image (container->owner.klass->image, data);
2489 add_image (type->data.generic_param->image, data);
2493 case MONO_TYPE_MVAR: {
2494 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2495 if (type->data.generic_param->image)
2496 add_image (type->data.generic_param->image, data);
2498 if (!container->owner.method) {
2499 /* RefEmit created generic param whose method is not finished */
2500 add_image (container->image, data);
2502 g_assert (container->is_method);
2503 add_image (container->owner.method->klass->image, data);
2506 add_image (type->data.generic_param->image, data);
2510 case MONO_TYPE_CLASS:
2511 case MONO_TYPE_VALUETYPE:
2512 add_image (mono_class_from_mono_type (type)->image, data);
2515 add_image (mono_defaults.corlib, data);
2522 } CleanForImageUserData;
2525 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2527 MonoGenericClass *gclass = key;
2528 CleanForImageUserData *user_data = data;
2530 g_assert (gclass_in_image (gclass, user_data->image));
2532 user_data->list = g_slist_prepend (user_data->list, gclass);
2537 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2539 MonoGenericInst *ginst = key;
2540 CleanForImageUserData *user_data = data;
2542 // This doesn't work during corlib compilation
2543 //g_assert (ginst_in_image (ginst, user_data->image));
2545 user_data->list = g_slist_prepend (user_data->list, ginst);
2550 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2552 MonoImage *image = data;
2553 MonoMethodInflated *method = key;
2556 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2557 g_assert (method->declaring->klass->image == image ||
2558 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2559 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2565 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2567 MonoImage *image = data;
2568 MonoInflatedMethodSignature *sig = key;
2570 return signature_in_image (sig->sig, image) ||
2571 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2572 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2576 check_gmethod (gpointer key, gpointer value, gpointer data)
2578 MonoMethodInflated *method = key;
2579 MonoImage *image = data;
2581 if (method->context.class_inst)
2582 g_assert (!ginst_in_image (method->context.class_inst, image));
2583 if (method->context.method_inst)
2584 g_assert (!ginst_in_image (method->context.method_inst, image));
2585 if (((MonoMethod*)method)->signature)
2586 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2592 * Run a consistency check on the image set data structures.
2594 static G_GNUC_UNUSED void
2595 check_image_sets (MonoImage *image)
2598 GSList *l = image->image_sets;
2603 for (i = 0; i < image_sets->len; ++i) {
2604 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2606 if (!g_slist_find (l, set)) {
2607 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2613 mono_metadata_clean_for_image (MonoImage *image)
2615 CleanForImageUserData ginst_data, gclass_data;
2616 GSList *l, *set_list;
2618 //check_image_sets (image);
2621 * The data structures could reference each other so we delete them in two phases.
2622 * This is required because of the hashing functions in gclass/ginst_cache.
2624 ginst_data.image = gclass_data.image = image;
2625 ginst_data.list = gclass_data.list = NULL;
2626 mono_loader_lock ();
2628 /* Collect the items to delete */
2629 /* delete_image_set () modifies the lists so make a copy */
2630 for (l = image->image_sets; l; l = l->next) {
2631 MonoImageSet *set = l->data;
2633 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2634 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2635 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2636 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2639 /* Delete the removed items */
2640 for (l = ginst_data.list; l; l = l->next)
2641 free_generic_inst (l->data);
2642 for (l = gclass_data.list; l; l = l->next)
2643 free_generic_class (l->data);
2644 g_slist_free (ginst_data.list);
2645 g_slist_free (gclass_data.list);
2646 /* delete_image_set () modifies the lists so make a copy */
2647 set_list = g_slist_copy (image->image_sets);
2648 for (l = set_list; l; l = l->next) {
2649 MonoImageSet *set = l->data;
2651 delete_image_set (set);
2653 g_slist_free (set_list);
2655 mono_loader_unlock ();
2659 free_inflated_method (MonoMethodInflated *imethod)
2662 MonoMethod *method = (MonoMethod*)imethod;
2664 mono_marshal_free_inflated_wrappers (method);
2666 if (method->signature)
2667 mono_metadata_free_inflated_signature (method->signature);
2669 if (!((method->flags & METHOD_ATTRIBUTE_ABSTRACT) || (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) || (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) || (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))) {
2670 MonoMethodHeader *header = imethod->header;
2673 /* Allocated in inflate_generic_header () */
2674 for (i = 0; i < header->num_locals; ++i)
2675 mono_metadata_free_type (header->locals [i]);
2676 g_free (header->clauses);
2685 free_generic_inst (MonoGenericInst *ginst)
2689 /* The ginst itself is allocated from the image set mempool */
2690 for (i = 0; i < ginst->type_argc; ++i)
2691 mono_metadata_free_type (ginst->type_argv [i]);
2695 free_generic_class (MonoGenericClass *gclass)
2697 /* The gclass itself is allocated from the image set mempool */
2698 if (gclass->is_dynamic)
2699 mono_reflection_free_dynamic_generic_class (gclass);
2700 if (gclass->cached_class && gclass->cached_class->interface_id)
2701 mono_unload_interface_id (gclass->cached_class);
2705 free_inflated_signature (MonoInflatedMethodSignature *sig)
2707 mono_metadata_free_inflated_signature (sig->sig);
2712 * LOCKING: assumes the loader lock is held.
2715 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2720 collect_data_init (&data);
2722 collect_method_images (method, &data);
2724 set = get_image_set (data.images, data.nimages);
2726 collect_data_free (&data);
2729 g_hash_table_insert (set->gmethod_cache, method, method);
2733 return g_hash_table_lookup (set->gmethod_cache, method);
2738 * mono_metadata_get_inflated_signature:
2740 * Given an inflated signature and a generic context, return a canonical copy of the
2741 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2743 MonoMethodSignature *
2744 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2746 MonoInflatedMethodSignature helper;
2747 MonoInflatedMethodSignature *res;
2751 mono_loader_lock ();
2754 helper.context.class_inst = context->class_inst;
2755 helper.context.method_inst = context->method_inst;
2757 collect_data_init (&data);
2759 collect_inflated_signature_images (&helper, &data);
2761 set = get_image_set (data.images, data.nimages);
2763 collect_data_free (&data);
2765 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2767 res = g_new0 (MonoInflatedMethodSignature, 1);
2769 res->context.class_inst = context->class_inst;
2770 res->context.method_inst = context->method_inst;
2771 g_hash_table_insert (set->gsignature_cache, res, res);
2774 mono_loader_unlock ();
2779 * mono_metadata_get_generic_inst:
2781 * Given a list of types, return a MonoGenericInst that represents that list.
2782 * The returned MonoGenericInst has its own copy of the list of types. The list
2783 * passed in the argument can be freed, modified or disposed of.
2787 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2789 MonoGenericInst *ginst;
2792 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2796 for (i = 0; i < type_argc; ++i)
2797 if (mono_class_is_open_constructed_type (type_argv [i]))
2799 is_open = (i < type_argc);
2801 ginst = g_alloca (size);
2802 memset (ginst, 0, sizeof (MonoGenericInst));
2803 ginst->is_open = is_open;
2804 ginst->type_argc = type_argc;
2805 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2807 mono_loader_lock ();
2809 collect_data_init (&data);
2811 collect_ginst_images (ginst, &data);
2813 set = get_image_set (data.images, data.nimages);
2815 collect_data_free (&data);
2817 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2819 ginst = mono_image_set_alloc0 (set, size);
2820 #ifndef MONO_SMALL_CONFIG
2821 ginst->id = ++next_generic_inst_id;
2823 ginst->is_open = is_open;
2824 ginst->type_argc = type_argc;
2826 for (i = 0; i < type_argc; ++i)
2827 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2829 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2832 mono_loader_unlock ();
2837 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2839 MonoGenericContainer *container = container_class->generic_container;
2841 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2843 return inst == container->context.class_inst;
2847 * mono_metadata_lookup_generic_class:
2849 * Returns a MonoGenericClass with the given properties.
2853 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2855 MonoGenericClass *gclass;
2856 MonoGenericClass helper;
2857 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2861 helper.container_class = container_class;
2862 helper.context.class_inst = inst;
2863 helper.context.method_inst = NULL;
2864 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2865 helper.is_tb_open = is_tb_open;
2866 helper.cached_class = NULL;
2868 mono_loader_lock ();
2870 collect_data_init (&data);
2872 collect_gclass_images (&helper, &data);
2874 set = get_image_set (data.images, data.nimages);
2876 collect_data_free (&data);
2878 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
2880 /* A tripwire just to keep us honest */
2881 g_assert (!helper.cached_class);
2884 mono_loader_unlock ();
2889 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
2890 gclass = &dgclass->generic_class;
2891 gclass->is_dynamic = 1;
2893 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
2896 gclass->is_tb_open = is_tb_open;
2897 gclass->container_class = container_class;
2898 gclass->context.class_inst = inst;
2899 gclass->context.method_inst = NULL;
2900 gclass->owner = set;
2901 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2902 gclass->cached_class = container_class;
2904 g_hash_table_insert (set->gclass_cache, gclass, gclass);
2906 mono_loader_unlock ();
2912 * mono_metadata_inflate_generic_inst:
2914 * Instantiate the generic instance @ginst with the context @context.
2915 * Check @error for success.
2919 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
2921 MonoType **type_argv;
2922 MonoGenericInst *nginst = NULL;
2925 mono_error_init (error);
2927 if (!ginst->is_open)
2930 type_argv = g_new0 (MonoType*, ginst->type_argc);
2932 for (i = 0; i < ginst->type_argc; i++) {
2933 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
2934 if (!mono_error_ok (error))
2939 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2942 for (i = 0; i < count; i++)
2943 mono_metadata_free_type (type_argv [i]);
2950 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2951 int count, const char *ptr, const char **rptr)
2953 MonoType **type_argv;
2954 MonoGenericInst *ginst;
2957 type_argv = g_new0 (MonoType*, count);
2959 for (i = 0; i < count; i++) {
2960 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2971 ginst = mono_metadata_get_generic_inst (count, type_argv);
2979 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2980 const char *ptr, const char **rptr)
2982 MonoGenericInst *inst;
2987 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2991 gklass = mono_class_from_mono_type (gtype);
2992 if (!gklass->generic_container)
2995 count = mono_metadata_decode_value (ptr, &ptr);
2996 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
3003 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3009 * @gc: The generic container to normalize
3010 * @type: The kind of generic parameters the resulting generic-container should contain
3013 static MonoGenericContainer *
3014 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3016 gboolean is_var = (type == MONO_TYPE_VAR);
3020 g_assert (is_var || type == MONO_TYPE_MVAR);
3023 if (gc->is_method || gc->parent)
3025 * The current MonoGenericContainer is a generic method -> its `parent'
3026 * points to the containing class'es container.
3035 * mono_metadata_parse_generic_param:
3036 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3037 * see mono_metadata_parse_type_full() for details.
3038 * Internal routine to parse a generic type parameter.
3039 * LOCKING: Acquires the loader lock
3041 static MonoGenericParam *
3042 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3043 MonoTypeEnum type, const char *ptr, const char **rptr)
3045 int index = mono_metadata_decode_value (ptr, &ptr);
3049 generic_container = select_container (generic_container, type);
3050 if (!generic_container) {
3051 /* Create dummy MonoGenericParam */
3052 MonoGenericParam *param;
3054 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3061 if (index >= generic_container->type_argc)
3064 return mono_generic_container_get_param (generic_container, index);
3068 * mono_metadata_get_shared_type:
3070 * Return a shared instance of TYPE, if available, NULL otherwise.
3071 * Shared MonoType instances help save memory. Their contents should not be modified
3072 * by the caller. They do not need to be freed as their lifetime is bound by either
3073 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3074 * instance they are embedded in. If they are freed, they should be freed using
3075 * mono_metadata_free_type () instead of g_free ().
3078 mono_metadata_get_shared_type (MonoType *type)
3082 /* No need to use locking since nobody is modifying the hash table */
3083 if ((cached = g_hash_table_lookup (type_cache, type)))
3086 switch (type->type){
3087 case MONO_TYPE_CLASS:
3088 case MONO_TYPE_VALUETYPE:
3089 if (type == &type->data.klass->byval_arg)
3091 if (type == &type->data.klass->this_arg)
3100 compare_type_literals (int class_type, int type_type)
3102 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3103 * See mcs/test/gtest-440. and #650936.
3104 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3108 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3111 if (type_type == MONO_TYPE_CLASS && (class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT))
3113 return class_type == type_type;
3117 * do_mono_metadata_parse_type:
3118 * @type: MonoType to be filled in with the return value
3120 * @generic_context: generics_context
3121 * @transient: whenever to allocate data from the heap
3122 * @ptr: pointer to the encoded type
3123 * @rptr: pointer where the end of the encoded type is saved
3125 * Internal routine used to "fill" the contents of @type from an
3126 * allocated pointer. This is done this way to avoid doing too
3127 * many mini-allocations (particularly for the MonoFieldType which
3128 * most of the time is just a MonoType, but sometimes might be augmented).
3130 * This routine is used by mono_metadata_parse_type and
3131 * mono_metadata_parse_field_type
3133 * This extracts a Type as specified in Partition II (22.2.12)
3135 * Returns: FALSE if the type could not be loaded
3138 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3139 gboolean transient, const char *ptr, const char **rptr)
3142 type->type = mono_metadata_decode_value (ptr, &ptr);
3144 switch (type->type){
3145 case MONO_TYPE_VOID:
3146 case MONO_TYPE_BOOLEAN:
3147 case MONO_TYPE_CHAR:
3160 case MONO_TYPE_STRING:
3161 case MONO_TYPE_OBJECT:
3162 case MONO_TYPE_TYPEDBYREF:
3164 case MONO_TYPE_VALUETYPE:
3165 case MONO_TYPE_CLASS: {
3168 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3169 class = mono_class_get (m, token);
3170 type->data.klass = class;
3173 if (!compare_type_literals (class->byval_arg.type, type->type))
3177 case MONO_TYPE_SZARRAY: {
3178 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3181 type->data.klass = mono_class_from_mono_type (etype);
3182 if (!type->data.klass)
3187 type->data.type = mono_metadata_parse_type_internal (m, container, MONO_PARSE_MOD_TYPE, 0, transient, ptr, &ptr);
3188 if (!type->data.type)
3191 case MONO_TYPE_FNPTR:
3192 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
3193 if (!type->data.method)
3196 case MONO_TYPE_ARRAY:
3197 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr);
3198 if (!type->data.array)
3201 case MONO_TYPE_MVAR:
3202 if (container && !container->is_method)
3205 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
3206 if (!type->data.generic_param)
3209 case MONO_TYPE_GENERICINST:
3210 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3213 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3223 * mono_metadata_free_type:
3224 * @type: type to free
3226 * Free the memory allocated for type @type which is allocated on the heap.
3229 mono_metadata_free_type (MonoType *type)
3231 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3234 switch (type->type){
3235 case MONO_TYPE_OBJECT:
3236 case MONO_TYPE_STRING:
3237 if (!type->data.klass)
3240 case MONO_TYPE_CLASS:
3241 case MONO_TYPE_VALUETYPE:
3242 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3246 mono_metadata_free_type (type->data.type);
3248 case MONO_TYPE_FNPTR:
3249 mono_metadata_free_method_signature (type->data.method);
3251 case MONO_TYPE_ARRAY:
3252 mono_metadata_free_array (type->data.array);
3261 hex_dump (const char *buffer, int base, int count)
3263 int show_header = 1;
3271 for (i = 0; i < count; i++){
3274 printf ("\n0x%08x: ", (unsigned char) base + i);
3276 printf ("%02x ", (unsigned char) (buffer [i]));
3283 * @ptr: Points to the beginning of the Section Data (25.3)
3285 static MonoExceptionClause*
3286 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3288 unsigned char sect_data_flags;
3289 const unsigned char *sptr;
3291 guint32 sect_data_len;
3292 MonoExceptionClause* clauses = NULL;
3295 /* align on 32-bit boundary */
3296 sptr = ptr = dword_align (ptr);
3297 sect_data_flags = *ptr;
3300 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3302 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3305 sect_data_len = ptr [0];
3309 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
3310 hex_dump (sptr, 0, sect_data_len+8);
3311 g_print ("\nheader: ");
3312 hex_dump (sptr-4, 0, 4);
3316 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3317 const unsigned char *p = dword_align (ptr);
3319 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3320 /* we could just store a pointer if we don't need to byteswap */
3321 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3322 for (i = 0; i < *num_clauses; ++i) {
3323 MonoExceptionClause *ec = &clauses [i];
3326 ec->flags = read32 (p);
3327 ec->try_offset = read32 (p + 4);
3328 ec->try_len = read32 (p + 8);
3329 ec->handler_offset = read32 (p + 12);
3330 ec->handler_len = read32 (p + 16);
3331 tof_value = read32 (p + 20);
3334 ec->flags = read16 (p);
3335 ec->try_offset = read16 (p + 2);
3336 ec->try_len = *(p + 4);
3337 ec->handler_offset = read16 (p + 5);
3338 ec->handler_len = *(p + 7);
3339 tof_value = read32 (p + 8);
3342 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3343 ec->data.filter_offset = tof_value;
3344 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3345 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
3347 ec->data.catch_class = NULL;
3349 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3353 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3354 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3361 * mono_method_get_header_summary:
3362 * @method: The method to get the header.
3363 * @summary: Where to store the header
3366 * Returns: true if the header was properly decoded.
3369 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3375 unsigned char flags, format;
3378 /*Only the GMD has a pointer to the metadata.*/
3379 while (method->is_inflated)
3380 method = ((MonoMethodInflated*)method)->declaring;
3382 summary->code_size = 0;
3383 summary->has_clauses = FALSE;
3385 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3386 if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) || (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) || (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) || (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
3389 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3390 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3393 summary->code_size = header->code_size;
3394 summary->has_clauses = header->num_clauses > 0;
3399 idx = mono_metadata_token_index (method->token);
3400 img = method->klass->image;
3401 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3403 /*We must run the verifier since we'll be decoding it.*/
3404 if (!mono_verifier_verify_method_header (img, rva, NULL))
3407 ptr = mono_image_rva_map (img, rva);
3410 flags = *(const unsigned char *)ptr;
3411 format = flags & METHOD_HEADER_FORMAT_MASK;
3414 case METHOD_HEADER_TINY_FORMAT:
3416 summary->code_size = flags >> 2;
3418 case METHOD_HEADER_FAT_FORMAT:
3419 fat_flags = read16 (ptr);
3421 summary->code_size = read32 (ptr);
3422 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3423 summary->has_clauses = TRUE;
3432 * mono_metadata_parse_mh_full:
3433 * @m: metadata context
3434 * @generic_context: generics context
3435 * @ptr: pointer to the method header.
3437 * Decode the method header at @ptr, including pointer to the IL code,
3438 * info about local variables and optional exception tables.
3439 * This is a Mono runtime internal function.
3441 * LOCKING: Acquires the loader lock.
3443 * Returns: a transient MonoMethodHeader allocated from the heap.
3446 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3448 MonoMethodHeader *mh;
3449 unsigned char flags = *(const unsigned char *) ptr;
3450 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3452 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3453 const unsigned char *code;
3454 MonoExceptionClause* clauses = NULL;
3455 int hsize, num_clauses = 0;
3456 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3457 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3459 g_return_val_if_fail (ptr != NULL, NULL);
3462 case METHOD_HEADER_TINY_FORMAT:
3463 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3466 mh->is_transient = TRUE;
3467 local_var_sig_tok = 0;
3468 mh->code_size = flags >> 2;
3469 mh->code = (unsigned char*)ptr;
3471 case METHOD_HEADER_FAT_FORMAT:
3472 fat_flags = read16 (ptr);
3474 hsize = (fat_flags >> 12) & 0xf;
3475 max_stack = read16 (ptr);
3477 code_size = read32 (ptr);
3479 local_var_sig_tok = read32 (ptr);
3482 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3487 code = (unsigned char*)ptr;
3489 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3493 * There are more sections
3495 ptr = (char*)code + code_size;
3501 if (local_var_sig_tok) {
3502 int idx = (local_var_sig_tok & 0xffffff)-1;
3503 if (idx >= t->rows || idx < 0)
3505 mono_metadata_decode_row (t, idx, cols, 1);
3507 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3510 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3511 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3512 if (local_var_sig_tok) {
3513 const char *locals_ptr;
3514 int len=0, i, bsize;
3516 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3517 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3518 if (*locals_ptr != 0x07)
3519 g_warning ("wrong signature for locals blob");
3521 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3522 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3523 mh->num_locals = len;
3524 for (i = 0; i < len; ++i) {
3525 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3526 MONO_PARSE_LOCAL, 0, TRUE, locals_ptr, &locals_ptr);
3527 if (!mh->locals [i]) {
3534 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3537 mh->code_size = code_size;
3538 mh->max_stack = max_stack;
3539 mh->is_transient = TRUE;
3540 mh->init_locals = init_locals;
3542 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3543 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3545 mh->clauses = clausesp;
3546 mh->num_clauses = num_clauses;
3552 * mono_metadata_parse_mh:
3553 * @generic_context: generics context
3554 * @ptr: pointer to the method header.
3556 * Decode the method header at @ptr, including pointer to the IL code,
3557 * info about local variables and optional exception tables.
3558 * This is a Mono runtime internal function.
3560 * Returns: a MonoMethodHeader.
3563 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3565 MonoMethodHeader *res;
3567 mono_loader_lock ();
3569 res = mono_metadata_parse_mh_full (m, NULL, ptr);
3571 mono_loader_unlock ();
3577 * mono_metadata_free_mh:
3578 * @mh: a method header
3580 * Free the memory allocated for the method header.
3583 mono_metadata_free_mh (MonoMethodHeader *mh)
3587 /* If it is not transient it means it's part of a wrapper method,
3588 * or a SRE-generated method, so the lifetime in that case is
3589 * dictated by the method's own lifetime
3591 if (mh->is_transient) {
3592 for (i = 0; i < mh->num_locals; ++i)
3593 mono_metadata_free_type (mh->locals [i]);
3599 * mono_method_header_get_code:
3600 * @header: a MonoMethodHeader pointer
3601 * @code_size: memory location for returning the code size
3602 * @max_stack: memory location for returning the max stack
3604 * Method header accessor to retreive info about the IL code properties:
3605 * a pointer to the IL code itself, the size of the code and the max number
3606 * of stack slots used by the code.
3608 * Returns: pointer to the IL code represented by the method header.
3610 const unsigned char*
3611 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3614 *code_size = header->code_size;
3616 *max_stack = header->max_stack;
3617 return header->code;
3621 * mono_method_header_get_locals:
3622 * @header: a MonoMethodHeader pointer
3623 * @num_locals: memory location for returning the number of local variables
3624 * @init_locals: memory location for returning the init_locals flag
3626 * Method header accessor to retreive info about the local variables:
3627 * an array of local types, the number of locals and whether the locals
3628 * are supposed to be initialized to 0 on method entry
3630 * Returns: pointer to an array of types of the local variables
3633 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3636 *num_locals = header->num_locals;
3638 *init_locals = header->init_locals;
3639 return header->locals;
3643 * mono_method_header_get_num_clauses:
3644 * @header: a MonoMethodHeader pointer
3646 * Method header accessor to retreive the number of exception clauses.
3648 * Returns: the number of exception clauses present
3651 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3653 return header->num_clauses;
3657 * mono_method_header_get_clauses:
3658 * @header: a MonoMethodHeader pointer
3659 * @method: MonoMethod the header belongs to
3660 * @iter: pointer to a iterator
3661 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3663 * Get the info about the exception clauses in the method. Set *iter to NULL to
3664 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3665 * At each iteration, the structure pointed to by clause if filled with the
3666 * exception clause information.
3668 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3672 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3674 MonoExceptionClause *sc;
3675 /* later we'll be able to use this interface to parse the clause info on demand,
3676 * without allocating anything.
3678 if (!iter || !header->num_clauses)
3681 *iter = sc = header->clauses;
3687 if (sc < header->clauses + header->num_clauses) {
3696 * mono_metadata_parse_field_type:
3697 * @m: metadata context to extract information from
3698 * @ptr: pointer to the field signature
3699 * @rptr: pointer updated to match the end of the decoded stream
3701 * Parses the field signature, and returns the type information for it.
3703 * Returns: The MonoType that was extracted from @ptr.
3706 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3708 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3712 * mono_metadata_parse_param:
3713 * @m: metadata context to extract information from
3714 * @ptr: pointer to the param signature
3715 * @rptr: pointer updated to match the end of the decoded stream
3717 * Parses the param signature, and returns the type information for it.
3719 * Returns: The MonoType that was extracted from @ptr.
3722 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3724 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3728 * mono_metadata_token_from_dor:
3729 * @dor_token: A TypeDefOrRef coded index
3731 * dor_token is a TypeDefOrRef coded index: it contains either
3732 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3733 * bits contain an index into the table.
3735 * Returns: an expanded token
3738 mono_metadata_token_from_dor (guint32 dor_index)
3742 table = dor_index & 0x03;
3743 idx = dor_index >> 2;
3746 case 0: /* TypeDef */
3747 return MONO_TOKEN_TYPE_DEF | idx;
3748 case 1: /* TypeRef */
3749 return MONO_TOKEN_TYPE_REF | idx;
3750 case 2: /* TypeSpec */
3751 return MONO_TOKEN_TYPE_SPEC | idx;
3753 g_assert_not_reached ();
3760 * We use this to pass context information to the row locator
3763 int idx; /* The index that we are trying to locate */
3764 int col_idx; /* The index in the row where idx may be stored */
3765 MonoTableInfo *t; /* pointer to the table */
3770 * How the row locator works.
3775 * ___|___------> _______
3778 * A column in the rows of table A references an index in table B.
3779 * For example A may be the TYPEDEF table and B the METHODDEF table.
3781 * Given an index in table B we want to get the row in table A
3782 * where the column n references our index in B.
3784 * In the locator_t structure:
3786 * col_idx is the column number
3787 * index is the index in table B
3788 * result will be the index in table A
3791 * Table A Table B column (in table A)
3792 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3793 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3794 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3795 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3796 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3798 * Note that we still don't support encoded indexes.
3802 typedef_locator (const void *a, const void *b)
3804 locator_t *loc = (locator_t *) a;
3805 const char *bb = (const char *) b;
3806 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3807 guint32 col, col_next;
3809 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3815 * Need to check that the next row is valid.
3817 if (typedef_index + 1 < loc->t->rows) {
3818 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3819 if (loc->idx >= col_next)
3822 if (col == col_next)
3826 loc->result = typedef_index;
3832 table_locator (const void *a, const void *b)
3834 locator_t *loc = (locator_t *) a;
3835 const char *bb = (const char *) b;
3836 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3839 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3841 if (loc->idx == col) {
3842 loc->result = table_index;
3852 declsec_locator (const void *a, const void *b)
3854 locator_t *loc = (locator_t *) a;
3855 const char *bb = (const char *) b;
3856 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3859 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3861 if (loc->idx == col) {
3862 loc->result = table_index;
3874 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3875 * which contains IDX.
3878 search_ptr_table (MonoImage *image, int table, int idx)
3880 MonoTableInfo *ptrdef = &image->tables [table];
3883 /* Use a linear search to find our index in the table */
3884 for (i = 0; i < ptrdef->rows; i ++)
3885 /* All the Ptr tables have the same structure */
3886 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3889 if (i < ptrdef->rows)
3896 * mono_metadata_typedef_from_field:
3897 * @meta: metadata context
3898 * @index: FieldDef token
3900 * Returns: the 1-based index into the TypeDef table of the type that
3901 * declared the field described by @index, or 0 if not found.
3904 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3906 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3912 loc.idx = mono_metadata_token_index (index);
3913 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3916 if (meta->uncompressed_metadata)
3917 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3919 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3922 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3923 return loc.result + 1;
3927 * mono_metadata_typedef_from_method:
3928 * @meta: metadata context
3929 * @index: MethodDef token
3931 * Returns: the 1-based index into the TypeDef table of the type that
3932 * declared the method described by @index. 0 if not found.
3935 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3937 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3943 loc.idx = mono_metadata_token_index (index);
3944 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3947 if (meta->uncompressed_metadata)
3948 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3950 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3953 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3954 return loc.result + 1;
3958 * mono_metadata_interfaces_from_typedef_full:
3959 * @meta: metadata context
3960 * @index: typedef token
3961 * @interfaces: Out parameter used to store the interface array
3962 * @count: Out parameter used to store the number of interfaces
3963 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
3964 * @context: The generic context
3966 * The array of interfaces that the @index typedef token implements is returned in
3967 * @interfaces. The number of elements in the array is returned in @count.
3969 * LOCKING: Assumes the loader lock is held.
3971 * Returns: TRUE on success, FALSE on failure.
3974 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context)
3976 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3979 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3988 loc.idx = mono_metadata_token_index (index);
3989 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3992 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3997 * We may end up in the middle of the rows...
4000 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4006 while (pos < tdef->rows) {
4007 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4008 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4013 if (heap_alloc_result)
4014 result = g_new0 (MonoClass*, pos - start);
4016 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4019 while (pos < tdef->rows) {
4022 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4023 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4025 iface = mono_class_get_full (
4026 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
4029 result [pos - start] = iface;
4032 *count = pos - start;
4033 *interfaces = result;
4038 * @meta: metadata context
4039 * @index: typedef token
4040 * @count: Out parameter used to store the number of interfaces
4042 * The array of interfaces that the @index typedef token implements is returned in
4043 * @interfaces. The number of elements in the array is returned in @count. The returned
4044 * array is g_malloc'd and the caller must free it.
4046 * LOCKING: Acquires the loader lock .
4048 * Returns: the interface array on success, NULL on failure.
4052 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4054 MonoClass **interfaces;
4057 mono_loader_lock ();
4058 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL);
4059 mono_loader_unlock ();
4067 * mono_metadata_nested_in_typedef:
4068 * @meta: metadata context
4069 * @index: typedef token
4071 * Returns: the 1-based index into the TypeDef table of the type
4072 * where the type described by @index is nested.
4073 * Returns 0 if @index describes a non-nested type.
4076 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4078 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4084 loc.idx = mono_metadata_token_index (index);
4085 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4088 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4091 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4092 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4096 * mono_metadata_nesting_typedef:
4097 * @meta: metadata context
4098 * @index: typedef token
4100 * Returns: the 1-based index into the TypeDef table of the first type
4101 * that is nested inside the type described by @index. The search starts at
4102 * @start_index. returns 0 if no such type is found.
4105 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4107 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4109 guint32 class_index = mono_metadata_token_index (index);
4114 start = start_index;
4116 while (start <= tdef->rows) {
4117 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4123 if (start > tdef->rows)
4130 * mono_metadata_packing_from_typedef:
4131 * @meta: metadata context
4132 * @index: token representing a type
4134 * Returns: the info stored in the ClassLAyout table for the given typedef token
4135 * into the @packing and @size pointers.
4136 * Returns 0 if the info is not found.
4139 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4141 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4143 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4148 loc.idx = mono_metadata_token_index (index);
4149 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4152 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4155 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4157 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4159 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4161 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4162 return loc.result + 1;
4166 * mono_metadata_custom_attrs_from_index:
4167 * @meta: metadata context
4168 * @index: token representing the parent
4170 * Returns: the 1-based index into the CustomAttribute table of the first
4171 * attribute which belongs to the metadata object described by @index.
4172 * Returns 0 if no such attribute is found.
4175 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4177 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4184 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4187 /* FIXME: Index translation */
4189 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4192 /* Find the first entry by searching backwards */
4193 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4196 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4197 return loc.result + 1;
4201 * mono_metadata_declsec_from_index:
4202 * @meta: metadata context
4203 * @index: token representing the parent
4205 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4206 * attribute which belongs to the metadata object described by @index.
4207 * Returns -1 if no such attribute is found.
4210 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4212 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4219 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4222 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4225 /* Find the first entry by searching backwards */
4226 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4234 mono_backtrace (int limit)
4239 backtrace (array, limit);
4240 names = backtrace_symbols (array, limit);
4241 for (i =0; i < limit; ++i) {
4242 g_print ("\t%s\n", names [i]);
4248 #define abi__alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
4252 * @t: the type to return the size of
4254 * Returns: the number of bytes required to hold an instance of this
4258 mono_type_size (MonoType *t, int *align)
4265 *align = abi__alignof__(gpointer);
4266 return sizeof (gpointer);
4270 case MONO_TYPE_VOID:
4273 case MONO_TYPE_BOOLEAN:
4274 *align = abi__alignof__(gint8);
4278 *align = abi__alignof__(gint8);
4280 case MONO_TYPE_CHAR:
4283 *align = abi__alignof__(gint16);
4287 *align = abi__alignof__(gint32);
4290 *align = abi__alignof__(float);
4294 *align = abi__alignof__(gint64);
4297 *align = abi__alignof__(double);
4301 *align = abi__alignof__(gpointer);
4302 return sizeof (gpointer);
4303 case MONO_TYPE_STRING:
4304 *align = abi__alignof__(gpointer);
4305 return sizeof (gpointer);
4306 case MONO_TYPE_OBJECT:
4307 *align = abi__alignof__(gpointer);
4308 return sizeof (gpointer);
4309 case MONO_TYPE_VALUETYPE: {
4310 if (t->data.klass->enumtype)
4311 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4313 return mono_class_value_size (t->data.klass, (guint32*)align);
4315 case MONO_TYPE_CLASS:
4316 case MONO_TYPE_SZARRAY:
4318 case MONO_TYPE_FNPTR:
4319 case MONO_TYPE_ARRAY:
4320 *align = abi__alignof__(gpointer);
4321 return sizeof (gpointer);
4322 case MONO_TYPE_TYPEDBYREF:
4323 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4324 case MONO_TYPE_GENERICINST: {
4325 MonoGenericClass *gclass = t->data.generic_class;
4326 MonoClass *container_class = gclass->container_class;
4328 // g_assert (!gclass->inst->is_open);
4330 if (container_class->valuetype) {
4331 if (container_class->enumtype)
4332 return mono_type_size (mono_class_enum_basetype (container_class), align);
4334 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4336 *align = abi__alignof__(gpointer);
4337 return sizeof (gpointer);
4341 case MONO_TYPE_MVAR:
4342 /* FIXME: Martin, this is wrong. */
4343 *align = abi__alignof__(gpointer);
4344 return sizeof (gpointer);
4346 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4352 * mono_type_stack_size:
4353 * @t: the type to return the size it uses on the stack
4355 * Returns: the number of bytes required to hold an instance of this
4356 * type on the runtime stack
4359 mono_type_stack_size (MonoType *t, int *align)
4361 return mono_type_stack_size_internal (t, align, FALSE);
4365 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4368 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4369 int stack_slot_size = sizeof (gpointer);
4370 int stack_slot_align = abi__alignof__ (gpointer);
4371 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4372 int stack_slot_size = SIZEOF_REGISTER;
4373 int stack_slot_align = SIZEOF_REGISTER;
4376 g_assert (t != NULL);
4382 *align = stack_slot_align;
4383 return stack_slot_size;
4387 case MONO_TYPE_BOOLEAN:
4388 case MONO_TYPE_CHAR:
4397 case MONO_TYPE_STRING:
4398 case MONO_TYPE_OBJECT:
4399 case MONO_TYPE_CLASS:
4400 case MONO_TYPE_SZARRAY:
4402 case MONO_TYPE_FNPTR:
4403 case MONO_TYPE_ARRAY:
4404 *align = stack_slot_align;
4405 return stack_slot_size;
4407 case MONO_TYPE_MVAR:
4408 g_assert (allow_open);
4409 *align = stack_slot_align;
4410 return stack_slot_size;
4411 case MONO_TYPE_TYPEDBYREF:
4412 *align = stack_slot_align;
4413 return stack_slot_size * 3;
4415 *align = abi__alignof__(float);
4416 return sizeof (float);
4419 *align = abi__alignof__(gint64);
4420 return sizeof (gint64);
4422 *align = abi__alignof__(double);
4423 return sizeof (double);
4424 case MONO_TYPE_VALUETYPE: {
4427 if (t->data.klass->enumtype)
4428 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4430 size = mono_class_value_size (t->data.klass, (guint32*)align);
4432 *align = *align + stack_slot_align - 1;
4433 *align &= ~(stack_slot_align - 1);
4435 size += stack_slot_size - 1;
4436 size &= ~(stack_slot_size - 1);
4441 case MONO_TYPE_GENERICINST: {
4442 MonoGenericClass *gclass = t->data.generic_class;
4443 MonoClass *container_class = gclass->container_class;
4446 g_assert (!gclass->context.class_inst->is_open);
4448 if (container_class->valuetype) {
4449 if (container_class->enumtype)
4450 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4452 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4454 *align = *align + stack_slot_align - 1;
4455 *align &= ~(stack_slot_align - 1);
4457 size += stack_slot_size - 1;
4458 size &= ~(stack_slot_size - 1);
4463 *align = stack_slot_align;
4464 return stack_slot_size;
4468 g_error ("type 0x%02x unknown", t->type);
4474 mono_type_generic_inst_is_valuetype (MonoType *type)
4476 g_assert (type->type == MONO_TYPE_GENERICINST);
4477 return type->data.generic_class->container_class->valuetype;
4481 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4483 return gclass->container_class->valuetype;
4487 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4489 MonoGenericInst *i1 = g1->context.class_inst;
4490 MonoGenericInst *i2 = g2->context.class_inst;
4492 if (g1->is_dynamic != g2->is_dynamic)
4494 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4496 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4498 return g1->is_tb_open == g2->is_tb_open;
4502 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4504 MonoGenericInst *i1 = g1->context.class_inst;
4505 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4507 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4509 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4511 return !g1->is_tb_open;
4515 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4517 /* FIXME: check if this seed is good enough */
4518 guint hash = 0xc01dfee7;
4519 if (context->class_inst)
4520 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4521 if (context->method_inst)
4522 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4527 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4529 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4533 * mono_metadata_str_hash:
4535 * This should be used instead of g_str_hash for computing hash codes visible
4536 * outside this module, since g_str_hash () is not guaranteed to be stable
4537 * (its not the same in eglib for example).
4540 mono_metadata_str_hash (gconstpointer v1)
4542 /* Same as g_str_hash () in glib */
4543 char *p = (char *) v1;
4548 hash = (hash << 5) - hash + *p;
4555 * mono_metadata_type_hash:
4558 * Computes an hash value for @t1 to be used in GHashTable.
4559 * The returned hash is guaranteed to be the same across executions.
4562 mono_metadata_type_hash (MonoType *t1)
4564 guint hash = t1->type;
4566 hash |= t1->byref << 6; /* do not collide with t1->type values */
4568 case MONO_TYPE_VALUETYPE:
4569 case MONO_TYPE_CLASS:
4570 case MONO_TYPE_SZARRAY: {
4571 MonoClass *class = t1->data.klass;
4573 * Dynamic classes must not be hashed on their type since it can change
4574 * during runtime. For example, if we hash a reference type that is
4575 * later made into a valuetype.
4577 * This is specially problematic with generic instances since they are
4578 * inserted in a bunch of hash tables before been finished.
4580 if (class->image->dynamic)
4581 return (t1->byref << 6) | mono_metadata_str_hash (class->name);
4582 return ((hash << 5) - hash) ^ mono_metadata_str_hash (class->name);
4585 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4586 case MONO_TYPE_ARRAY:
4587 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4588 case MONO_TYPE_GENERICINST:
4589 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4595 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4599 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4601 if (p1->serial != p2->serial)
4605 * We have to compare the image as well because if we didn't,
4606 * the generic_inst_cache lookup wouldn't care about the image
4607 * of generic params, so what could happen is that a generic
4608 * inst with params from image A is put into the cache, then
4609 * image B gets that generic inst from the cache, image A is
4610 * unloaded, so the inst is deleted, but image B still retains
4613 * The AOT runtime doesn't set the image when it's decoding
4614 * types, so we only compare it when the owner is NULL.
4616 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4617 (mono_generic_param_owner (p1) || p1->image == p2->image))
4621 * If `signature_only' is true, we're comparing two (method) signatures.
4622 * In this case, the owner of two type parameters doesn't need to match.
4625 return signature_only;
4629 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4633 if (c1->generic_class && c2->generic_class)
4634 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4635 if (c1->generic_class && c2->generic_container)
4636 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4637 if (c1->generic_container && c2->generic_class)
4638 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4639 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4640 return mono_metadata_generic_param_equal (
4641 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4642 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4643 return mono_metadata_generic_param_equal (
4644 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4645 if (signature_only &&
4646 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4647 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4648 if (signature_only &&
4649 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
4650 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
4655 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4657 gpointer iter1 = 0, iter2 = 0;
4661 if (s1->call_convention != s2->call_convention)
4663 if (s1->sentinelpos != s2->sentinelpos)
4665 if (s1->hasthis != s2->hasthis)
4667 if (s1->explicit_this != s2->explicit_this)
4669 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4671 if (s1->param_count != s2->param_count)
4675 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4676 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4678 if (t1 == NULL || t2 == NULL)
4680 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4686 * mono_metadata_type_equal:
4690 * Determine if @t1 and @t2 represent the same type.
4691 * Returns: #TRUE if @t1 and @t2 are equal.
4694 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4696 if (t1->type != t2->type || t1->byref != t2->byref)
4700 case MONO_TYPE_VOID:
4701 case MONO_TYPE_BOOLEAN:
4702 case MONO_TYPE_CHAR:
4713 case MONO_TYPE_STRING:
4716 case MONO_TYPE_OBJECT:
4717 case MONO_TYPE_TYPEDBYREF:
4719 case MONO_TYPE_VALUETYPE:
4720 case MONO_TYPE_CLASS:
4721 case MONO_TYPE_SZARRAY:
4722 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4724 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4725 case MONO_TYPE_ARRAY:
4726 if (t1->data.array->rank != t2->data.array->rank)
4728 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4729 case MONO_TYPE_GENERICINST:
4730 return _mono_metadata_generic_class_equal (
4731 t1->data.generic_class, t2->data.generic_class, signature_only);
4733 return mono_metadata_generic_param_equal (
4734 t1->data.generic_param, t2->data.generic_param, signature_only);
4735 case MONO_TYPE_MVAR:
4736 return mono_metadata_generic_param_equal (
4737 t1->data.generic_param, t2->data.generic_param, signature_only);
4738 case MONO_TYPE_FNPTR:
4739 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4741 g_error ("implement type compare for %0x!", t1->type);
4749 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
4751 return do_mono_metadata_type_equal (t1, t2, FALSE);
4755 * mono_metadata_type_equal_full:
4758 * @signature_only: if signature only comparison should be made
4760 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
4761 * behaves the same way as mono_metadata_type_equal.
4762 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
4763 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
4766 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
4768 return do_mono_metadata_type_equal (t1, t2, signature_only);
4772 * mono_metadata_signature_equal:
4773 * @sig1: a signature
4774 * @sig2: another signature
4776 * Determine if @sig1 and @sig2 represent the same signature, with the
4777 * same number of arguments and the same types.
4778 * Returns: #TRUE if @sig1 and @sig2 are equal.
4781 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4785 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4788 if (sig1->generic_param_count != sig2->generic_param_count)
4792 * We're just comparing the signatures of two methods here:
4794 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4795 * U and V are equal here.
4797 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4800 for (i = 0; i < sig1->param_count; i++) {
4801 MonoType *p1 = sig1->params[i];
4802 MonoType *p2 = sig2->params[i];
4804 /* if (p1->attrs != p2->attrs)
4807 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4811 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4817 * mono_metadata_type_dup:
4818 * @image: image to alloc memory from
4819 * @original: type to duplicate
4821 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
4824 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
4827 int sizeof_o = MONO_SIZEOF_TYPE;
4829 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
4831 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
4833 memcpy (r, o, sizeof_o);
4835 if (o->type == MONO_TYPE_PTR) {
4836 r->data.type = mono_metadata_type_dup (image, o->data.type);
4837 } else if (o->type == MONO_TYPE_ARRAY) {
4838 r->data.array = mono_dup_array_type (image, o->data.array);
4839 } else if (o->type == MONO_TYPE_FNPTR) {
4840 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
4841 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
4847 mono_signature_hash (MonoMethodSignature *sig)
4849 guint i, res = sig->ret->type;
4851 for (i = 0; i < sig->param_count; i++)
4852 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4858 * mono_metadata_encode_value:
4859 * @value: value to encode
4860 * @buf: buffer where to write the compressed representation
4861 * @endbuf: pointer updated to point at the end of the encoded output
4863 * Encodes the value @value in the compressed representation used
4864 * in metadata and stores the result in @buf. @buf needs to be big
4865 * enough to hold the data (4 bytes).
4868 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4874 else if (value < 0x4000) {
4875 p [0] = 0x80 | (value >> 8);
4876 p [1] = value & 0xff;
4879 p [0] = (value >> 24) | 0xc0;
4880 p [1] = (value >> 16) & 0xff;
4881 p [2] = (value >> 8) & 0xff;
4882 p [3] = value & 0xff;
4890 * mono_metadata_field_info:
4891 * @meta: the Image the field is defined in
4892 * @index: the index in the field table representing the field
4893 * @offset: a pointer to an integer where to store the offset that
4894 * may have been specified for the field in a FieldLayout table
4895 * @rva: a pointer to the RVA of the field data in the image that
4896 * may have been defined in a FieldRVA table
4897 * @marshal_spec: a pointer to the marshal spec that may have been
4898 * defined for the field in a FieldMarshal table.
4900 * Gather info for field @index that may have been defined in the FieldLayout,
4901 * FieldRVA and FieldMarshal tables.
4902 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4906 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4907 MonoMarshalSpec **marshal_spec)
4909 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
4913 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4914 MonoMarshalSpec **marshal_spec)
4916 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
4920 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4921 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
4923 MonoTableInfo *tdef;
4926 loc.idx = index + 1;
4927 if (meta->uncompressed_metadata)
4928 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4931 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4933 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4936 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4937 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4939 *offset = (guint32)-1;
4943 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4945 loc.col_idx = MONO_FIELD_RVA_FIELD;
4948 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4950 * LAMESPEC: There is no signature, no nothing, just the raw data.
4952 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4960 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4961 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, p);
4968 * mono_metadata_get_constant_index:
4969 * @meta: the Image the field is defined in
4970 * @index: the token that may have a row defined in the constants table
4971 * @hint: possible position for the row
4973 * @token must be a FieldDef, ParamDef or PropertyDef token.
4975 * Returns: the index into the Constants table or 0 if not found.
4978 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4980 MonoTableInfo *tdef;
4982 guint32 index = mono_metadata_token_index (token);
4984 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4985 index <<= MONO_HASCONSTANT_BITS;
4986 switch (mono_metadata_token_table (token)) {
4987 case MONO_TABLE_FIELD:
4988 index |= MONO_HASCONSTANT_FIEDDEF;
4990 case MONO_TABLE_PARAM:
4991 index |= MONO_HASCONSTANT_PARAM;
4993 case MONO_TABLE_PROPERTY:
4994 index |= MONO_HASCONSTANT_PROPERTY;
4997 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5001 loc.col_idx = MONO_CONSTANT_PARENT;
5004 /* FIXME: Index translation */
5006 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5009 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5010 return loc.result + 1;
5016 * mono_metadata_events_from_typedef:
5017 * @meta: metadata context
5018 * @index: 0-based index (in the TypeDef table) describing a type
5020 * Returns: the 0-based index in the Event table for the events in the
5021 * type. The last event that belongs to the type (plus 1) is stored
5022 * in the @end_idx pointer.
5025 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5029 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5037 loc.col_idx = MONO_EVENT_MAP_PARENT;
5038 loc.idx = index + 1;
5040 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5043 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5044 if (loc.result + 1 < tdef->rows) {
5045 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5047 end = meta->tables [MONO_TABLE_EVENT].rows;
5055 * mono_metadata_methods_from_event:
5056 * @meta: metadata context
5057 * @index: 0-based index (in the Event table) describing a event
5059 * Returns: the 0-based index in the MethodDef table for the methods in the
5060 * event. The last method that belongs to the event (plus 1) is stored
5061 * in the @end_idx pointer.
5064 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5068 guint32 cols [MONO_METHOD_SEMA_SIZE];
5069 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5075 if (meta->uncompressed_metadata)
5076 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5079 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5080 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5082 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5087 * We may end up in the middle of the rows...
5090 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5096 while (end < msemt->rows) {
5097 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5098 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5107 * mono_metadata_properties_from_typedef:
5108 * @meta: metadata context
5109 * @index: 0-based index (in the TypeDef table) describing a type
5111 * Returns: the 0-based index in the Property table for the properties in the
5112 * type. The last property that belongs to the type (plus 1) is stored
5113 * in the @end_idx pointer.
5116 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5120 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5128 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5129 loc.idx = index + 1;
5131 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5134 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5135 if (loc.result + 1 < tdef->rows) {
5136 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5138 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5146 * mono_metadata_methods_from_property:
5147 * @meta: metadata context
5148 * @index: 0-based index (in the PropertyDef table) describing a property
5150 * Returns: the 0-based index in the MethodDef table for the methods in the
5151 * property. The last method that belongs to the property (plus 1) is stored
5152 * in the @end_idx pointer.
5155 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5159 guint32 cols [MONO_METHOD_SEMA_SIZE];
5160 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5166 if (meta->uncompressed_metadata)
5167 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5170 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5171 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5173 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5178 * We may end up in the middle of the rows...
5181 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5187 while (end < msemt->rows) {
5188 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5189 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5198 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5201 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5206 /* No index translation seems to be needed */
5209 loc.col_idx = MONO_IMPLMAP_MEMBER;
5210 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5212 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5215 return loc.result + 1;
5219 * @image: context where the image is created
5220 * @type_spec: typespec token
5222 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5226 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5228 guint32 idx = mono_metadata_token_index (type_spec);
5230 guint32 cols [MONO_TYPESPEC_SIZE];
5233 MonoType *type, *type2;
5235 mono_loader_lock ();
5237 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5239 mono_loader_unlock ();
5243 t = &image->tables [MONO_TABLE_TYPESPEC];
5245 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5246 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5248 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5249 mono_loader_unlock ();
5253 len = mono_metadata_decode_value (ptr, &ptr);
5255 type = mono_metadata_parse_type_internal (image, NULL, MONO_PARSE_TYPE, 0, TRUE, ptr, &ptr);
5257 mono_loader_unlock ();
5261 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5264 mono_loader_unlock ();
5268 type2 = mono_metadata_type_dup (image, type);
5269 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5270 mono_metadata_free_type (type);
5272 mono_loader_unlock ();
5279 mono_image_strndup (MonoImage *image, const char *data, guint len)
5283 return g_strndup (data, len);
5284 res = mono_image_alloc (image, len + 1);
5285 memcpy (res, data, len);
5291 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5293 return mono_metadata_parse_marshal_spec_full (NULL, ptr);
5297 mono_metadata_parse_marshal_spec_full (MonoImage *image, const char *ptr)
5299 MonoMarshalSpec *res;
5301 const char *start = ptr;
5303 /* fixme: this is incomplete, but I cant find more infos in the specs */
5306 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5308 res = g_new0 (MonoMarshalSpec, 1);
5310 len = mono_metadata_decode_value (ptr, &ptr);
5311 res->native = *ptr++;
5313 if (res->native == MONO_NATIVE_LPARRAY) {
5314 res->data.array_data.param_num = -1;
5315 res->data.array_data.num_elem = -1;
5316 res->data.array_data.elem_mult = -1;
5318 if (ptr - start <= len)
5319 res->data.array_data.elem_type = *ptr++;
5320 if (ptr - start <= len)
5321 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5322 if (ptr - start <= len)
5323 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5324 if (ptr - start <= len) {
5326 * LAMESPEC: Older spec versions say this parameter comes before
5327 * num_elem. Never spec versions don't talk about elem_mult at
5328 * all, but csc still emits it, and it is used to distinguish
5329 * between param_num being 0, and param_num being omitted.
5330 * So if (param_num == 0) && (num_elem > 0), then
5331 * elem_mult == 0 -> the array size is num_elem
5332 * elem_mult == 1 -> the array size is @param_num + num_elem
5334 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5338 if (res->native == MONO_NATIVE_BYVALTSTR) {
5339 if (ptr - start <= len)
5340 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5343 if (res->native == MONO_NATIVE_BYVALARRAY) {
5344 if (ptr - start <= len)
5345 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5348 if (res->native == MONO_NATIVE_CUSTOM) {
5349 /* skip unused type guid */
5350 len = mono_metadata_decode_value (ptr, &ptr);
5352 /* skip unused native type name */
5353 len = mono_metadata_decode_value (ptr, &ptr);
5355 /* read custom marshaler type name */
5356 len = mono_metadata_decode_value (ptr, &ptr);
5357 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5359 /* read cookie string */
5360 len = mono_metadata_decode_value (ptr, &ptr);
5361 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5364 if (res->native == MONO_NATIVE_SAFEARRAY) {
5365 res->data.safearray_data.elem_type = 0;
5366 res->data.safearray_data.num_elem = 0;
5367 if (ptr - start <= len)
5368 res->data.safearray_data.elem_type = *ptr++;
5369 if (ptr - start <= len)
5370 res->data.safearray_data.num_elem = *ptr++;
5376 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5378 if (spec->native == MONO_NATIVE_CUSTOM) {
5379 g_free (spec->data.custom_data.custom_name);
5380 g_free (spec->data.custom_data.cookie);
5386 * mono_type_to_unmanaged:
5388 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5389 * describing the underlying native reprensetation of the type.
5391 * In addition the value pointed by
5392 * "conv" will contain the kind of marshalling required for this
5393 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5396 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5397 gboolean unicode, MonoMarshalConv *conv)
5399 MonoMarshalConv dummy_conv;
5405 *conv = MONO_MARSHAL_CONV_NONE;
5408 return MONO_NATIVE_UINT;
5412 case MONO_TYPE_BOOLEAN:
5414 switch (mspec->native) {
5415 case MONO_NATIVE_VARIANTBOOL:
5416 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5417 return MONO_NATIVE_VARIANTBOOL;
5418 case MONO_NATIVE_BOOLEAN:
5419 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5420 return MONO_NATIVE_BOOLEAN;
5421 case MONO_NATIVE_I1:
5422 case MONO_NATIVE_U1:
5423 return mspec->native;
5425 g_error ("cant marshal bool to native type %02x", mspec->native);
5428 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5429 return MONO_NATIVE_BOOLEAN;
5430 case MONO_TYPE_CHAR:
5432 switch (mspec->native) {
5433 case MONO_NATIVE_U2:
5434 case MONO_NATIVE_U1:
5435 return mspec->native;
5437 g_error ("cant marshal char to native type %02x", mspec->native);
5440 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5441 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5442 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5443 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5444 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5445 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5446 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5447 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5448 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5449 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5450 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5451 case MONO_TYPE_STRING:
5453 switch (mspec->native) {
5454 case MONO_NATIVE_BSTR:
5455 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5456 return MONO_NATIVE_BSTR;
5457 case MONO_NATIVE_LPSTR:
5458 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5459 return MONO_NATIVE_LPSTR;
5460 case MONO_NATIVE_LPWSTR:
5461 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5462 return MONO_NATIVE_LPWSTR;
5463 case MONO_NATIVE_LPTSTR:
5464 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5465 return MONO_NATIVE_LPTSTR;
5466 case MONO_NATIVE_ANSIBSTR:
5467 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5468 return MONO_NATIVE_ANSIBSTR;
5469 case MONO_NATIVE_TBSTR:
5470 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5471 return MONO_NATIVE_TBSTR;
5472 case MONO_NATIVE_BYVALTSTR:
5474 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5476 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5477 return MONO_NATIVE_BYVALTSTR;
5479 g_error ("Can not marshal string to native type '%02x': Invalid managed/unmanaged type combination (String fields must be paired with LPStr, LPWStr, BStr or ByValTStr).", mspec->native);
5483 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5484 return MONO_NATIVE_LPWSTR;
5487 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5488 return MONO_NATIVE_LPSTR;
5490 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5491 case MONO_TYPE_VALUETYPE: /*FIXME*/
5492 if (type->data.klass->enumtype) {
5493 t = mono_class_enum_basetype (type->data.klass)->type;
5496 if (type->data.klass == mono_defaults.handleref_class){
5497 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5498 return MONO_NATIVE_INT;
5500 return MONO_NATIVE_STRUCT;
5501 case MONO_TYPE_SZARRAY:
5502 case MONO_TYPE_ARRAY:
5504 switch (mspec->native) {
5505 case MONO_NATIVE_BYVALARRAY:
5506 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5507 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5509 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5510 return MONO_NATIVE_BYVALARRAY;
5511 case MONO_NATIVE_SAFEARRAY:
5512 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5513 return MONO_NATIVE_SAFEARRAY;
5514 case MONO_NATIVE_LPARRAY:
5515 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5516 return MONO_NATIVE_LPARRAY;
5518 g_error ("cant marshal array as native type %02x", mspec->native);
5522 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5523 return MONO_NATIVE_LPARRAY;
5524 case MONO_TYPE_I: return MONO_NATIVE_INT;
5525 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5526 case MONO_TYPE_CLASS:
5527 case MONO_TYPE_OBJECT: {
5528 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5530 switch (mspec->native) {
5531 case MONO_NATIVE_STRUCT:
5532 return MONO_NATIVE_STRUCT;
5533 case MONO_NATIVE_CUSTOM:
5534 return MONO_NATIVE_CUSTOM;
5535 case MONO_NATIVE_INTERFACE:
5536 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5537 return MONO_NATIVE_INTERFACE;
5538 case MONO_NATIVE_IDISPATCH:
5539 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5540 return MONO_NATIVE_IDISPATCH;
5541 case MONO_NATIVE_IUNKNOWN:
5542 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5543 return MONO_NATIVE_IUNKNOWN;
5544 case MONO_NATIVE_FUNC:
5545 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5546 type->data.klass == mono_defaults.delegate_class ||
5547 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5548 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5549 return MONO_NATIVE_FUNC;
5553 g_error ("cant marshal object as native type %02x", mspec->native);
5556 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5557 type->data.klass == mono_defaults.delegate_class ||
5558 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5559 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5560 return MONO_NATIVE_FUNC;
5562 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5563 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5564 return MONO_NATIVE_INT;
5566 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5567 return MONO_NATIVE_STRUCT;
5569 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5570 case MONO_TYPE_GENERICINST:
5571 type = &type->data.generic_class->container_class->byval_arg;
5574 case MONO_TYPE_TYPEDBYREF:
5576 g_error ("type 0x%02x not handled in marshal", t);
5578 return MONO_NATIVE_MAX;
5582 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5585 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5591 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5592 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5594 /* FIXME: Index translation */
5596 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5599 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5603 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
5605 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5607 switch (tok & MONO_METHODDEFORREF_MASK) {
5608 case MONO_METHODDEFORREF_METHODDEF:
5609 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
5610 case MONO_METHODDEFORREF_METHODREF:
5611 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
5613 g_assert_not_reached ();
5618 * mono_class_get_overrides_full:
5620 * Return the method overrides belonging to class @type_token in @overrides, and
5621 * the number of overrides in @num_overrides.
5623 * Returns: TRUE on success, FALSE on failure.
5626 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5627 MonoGenericContext *generic_context)
5631 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5634 guint32 cols [MONO_METHODIMPL_SIZE];
5635 MonoMethod **result;
5646 loc.col_idx = MONO_METHODIMPL_CLASS;
5647 loc.idx = mono_metadata_token_index (type_token);
5649 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5655 * We may end up in the middle of the rows...
5658 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5663 while (end < tdef->rows) {
5664 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5670 result = g_new (MonoMethod*, num * 2);
5671 for (i = 0; i < num; ++i) {
5674 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
5675 mono_error_cleanup (&error);
5680 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5681 method = method_from_method_def_or_ref (
5682 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
5685 result [i * 2] = method;
5686 method = method_from_method_def_or_ref (
5687 image, cols [MONO_METHODIMPL_BODY], generic_context);
5690 result [i * 2 + 1] = method;
5693 *overrides = result;
5695 *num_overrides = num;
5700 * mono_guid_to_string:
5702 * Converts a 16 byte Microsoft GUID to the standard string representation.
5705 mono_guid_to_string (const guint8 *guid)
5707 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5708 guid[3], guid[2], guid[1], guid[0],
5712 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
5716 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
5718 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
5719 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
5720 guint32 i, token, found;
5721 MonoClass *klass, **res;
5722 GSList *cons = NULL, *tmp;
5723 MonoGenericContext *context = &container->context;
5725 *constraints = NULL;
5727 for (i = 0; i < tdef->rows; ++i) {
5728 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
5729 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
5730 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
5731 klass = mono_class_get_full (image, token, context);
5733 g_slist_free (cons);
5736 cons = g_slist_append (cons, klass);
5739 /* contiguous list finished */
5746 res = mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
5747 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
5748 res [i] = tmp->data;
5750 g_slist_free (cons);
5756 * mono_metadata_get_generic_param_row:
5759 * @token: TypeOrMethodDef token, owner for GenericParam
5760 * @owner: coded token, set on return
5762 * Returns: 1-based row-id in the GenericParam table whose
5763 * owner is @token. 0 if not found.
5766 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
5768 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5775 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
5776 *owner = MONO_TYPEORMETHOD_TYPE;
5777 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5778 *owner = MONO_TYPEORMETHOD_METHOD;
5780 g_error ("wrong token %x to get_generic_param_row", token);
5783 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
5786 loc.col_idx = MONO_GENERICPARAM_OWNER;
5789 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5792 /* Find the first entry by searching backwards */
5793 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
5796 return loc.result + 1;
5800 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
5803 return mono_metadata_get_generic_param_row (image, token, &owner);
5807 * Memory is allocated from IMAGE's mempool.
5810 mono_metadata_load_generic_param_constraints_full (MonoImage *image, guint32 token,
5811 MonoGenericContainer *container)
5814 guint32 start_row, i, owner;
5815 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
5817 for (i = 0; i < container->type_argc; i++) {
5818 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container))
5825 * mono_metadata_load_generic_param_constraints:
5827 * @image: metadata context
5828 * @token: metadata token to load the contraints, can be methodef or typedef.
5829 * @container: generic container to load into.
5831 * Load the generic parameter constraints for the newly created generic type or method
5832 * represented by @token and @container. The @container is the new container which has
5833 * been returned by a call to mono_metadata_load_generic_params() with this @token.
5834 * Memory is allocated from IMAGE's mempool.
5837 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
5838 MonoGenericContainer *container)
5840 mono_metadata_load_generic_param_constraints_full (image, token, container);
5841 /*FIXME this function can potentially exit with a pending loader error and cause all sort of havok */
5845 * mono_metadata_load_generic_params:
5847 * Load the type parameters from the type or method definition @token.
5849 * Use this method after parsing a type or method definition to figure out whether it's a generic
5850 * type / method. When parsing a method definition, @parent_container points to the generic container
5851 * of the current class, if any.
5853 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
5854 * creating the type.
5856 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
5858 * LOCKING: Acquires the loader lock
5861 MonoGenericContainer *
5862 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
5864 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5865 guint32 cols [MONO_GENERICPARAM_SIZE];
5866 guint32 i, owner = 0, n;
5867 MonoGenericContainer *container;
5868 MonoGenericParamFull *params;
5869 MonoGenericContext *context;
5871 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
5873 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5876 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
5877 container->image = image;
5880 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
5881 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
5882 params [n - 1].param.owner = container;
5883 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
5884 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
5885 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
5886 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
5887 if (params [n - 1].param.num != n - 1)
5888 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
5889 if (++i > tdef->rows)
5891 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5892 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5894 container->type_argc = n;
5895 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
5896 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
5898 container->parent = parent_container;
5900 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5901 container->is_method = 1;
5903 g_assert (container->parent == NULL || container->is_method);
5905 context = &container->context;
5906 if (container->is_method) {
5907 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5908 context->method_inst = mono_get_shared_generic_inst (container);
5910 context->class_inst = mono_get_shared_generic_inst (container);
5917 mono_get_shared_generic_inst (MonoGenericContainer *container)
5919 MonoType **type_argv;
5921 MonoGenericInst *nginst;
5924 type_argv = g_new0 (MonoType *, container->type_argc);
5925 helper = g_new0 (MonoType, container->type_argc);
5927 for (i = 0; i < container->type_argc; i++) {
5928 MonoType *t = &helper [i];
5930 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5931 t->data.generic_param = mono_generic_container_get_param (container, i);
5936 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5945 * mono_type_is_byref:
5946 * @type: the MonoType operated on
5948 * Returns: #TRUE if @type represents a type passed by reference,
5952 mono_type_is_byref (MonoType *type)
5958 * mono_type_get_type:
5959 * @type: the MonoType operated on
5961 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
5962 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
5965 mono_type_get_type (MonoType *type)
5971 * mono_type_get_signature:
5972 * @type: the MonoType operated on
5974 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
5976 * Returns: the MonoMethodSignature pointer that describes the signature
5977 * of the function pointer @type represents.
5979 MonoMethodSignature*
5980 mono_type_get_signature (MonoType *type)
5982 g_assert (type->type == MONO_TYPE_FNPTR);
5983 return type->data.method;
5987 * mono_type_get_class:
5988 * @type: the MonoType operated on
5990 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
5991 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
5994 * Returns: the MonoClass pointer that describes the class that @type represents.
5997 mono_type_get_class (MonoType *type)
5999 /* FIXME: review the runtime users before adding the assert here */
6000 return type->data.klass;
6004 * mono_type_get_array_type:
6005 * @type: the MonoType operated on
6007 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6009 * Returns: a MonoArrayType struct describing the array type that @type
6010 * represents. The info includes details such as rank, array element type
6011 * and the sizes and bounds of multidimensional arrays.
6014 mono_type_get_array_type (MonoType *type)
6016 return type->data.array;
6020 * mono_type_get_ptr_type:
6021 * @type: the MonoType operated on
6023 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6026 * Returns: the MonoType pointer that describes the type that @type
6027 * represents a pointer to.
6030 mono_type_get_ptr_type (MonoType *type)
6032 g_assert (type->type == MONO_TYPE_PTR);
6033 return type->data.type;
6037 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6039 /* FIXME: implement */
6044 * mono_type_is_struct:
6045 * @type: the MonoType operated on
6047 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6048 * or a basic type like System.Int32. #FALSE otherwise.
6051 mono_type_is_struct (MonoType *type)
6053 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6054 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6055 ((type->type == MONO_TYPE_GENERICINST) &&
6056 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6057 !type->data.generic_class->container_class->enumtype)));
6061 * mono_type_is_void:
6062 * @type: the MonoType operated on
6064 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6067 mono_type_is_void (MonoType *type)
6069 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6073 * mono_type_is_pointer:
6074 * @type: the MonoType operated on
6076 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6079 mono_type_is_pointer (MonoType *type)
6081 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6082 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6083 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6084 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6085 (type->type == MONO_TYPE_FNPTR)));
6089 * mono_type_is_reference:
6090 * @type: the MonoType operated on
6092 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6095 mono_type_is_reference (MonoType *type)
6097 return (type && (((type->type == MONO_TYPE_STRING) ||
6098 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6099 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6100 ((type->type == MONO_TYPE_GENERICINST) &&
6101 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6105 * mono_signature_get_return_type:
6106 * @sig: the method signature inspected
6108 * Returns: the return type of the method signature @sig
6111 mono_signature_get_return_type (MonoMethodSignature *sig)
6117 * mono_signature_get_params:
6118 * @sig: the method signature inspected
6119 * #iter: pointer to an iterator
6121 * Iterates over the parameters for the method signature @sig.
6122 * A void* pointer must be initualized to #NULL to start the iteration
6123 * and it's address is passed to this function repeteadly until it returns
6126 * Returns: the next parameter type of the method signature @sig,
6127 * #NULL when finished.
6130 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6136 /* start from the first */
6137 if (sig->param_count) {
6138 *iter = &sig->params [0];
6139 return sig->params [0];
6147 if (type < &sig->params [sig->param_count]) {
6155 * mono_signature_get_param_count:
6156 * @sig: the method signature inspected
6158 * Returns: the number of parameters in the method signature @sig.
6161 mono_signature_get_param_count (MonoMethodSignature *sig)
6163 return sig->param_count;
6167 * mono_signature_get_call_conv:
6168 * @sig: the method signature inspected
6170 * Returns: the call convention of the method signature @sig.
6173 mono_signature_get_call_conv (MonoMethodSignature *sig)
6175 return sig->call_convention;
6179 * mono_signature_vararg_start:
6180 * @sig: the method signature inspected
6182 * Returns: the number of the first vararg parameter in the
6183 * method signature @sig. -1 if this is not a vararg signature.
6186 mono_signature_vararg_start (MonoMethodSignature *sig)
6188 return sig->sentinelpos;
6192 * mono_signature_is_instance:
6193 * @sig: the method signature inspected
6195 * Returns: #TRUE if this the method signature @sig has an implicit
6196 * first instance argument. #FALSE otherwise.
6199 mono_signature_is_instance (MonoMethodSignature *sig)
6201 return sig->hasthis;
6205 * mono_signature_param_is_out
6206 * @sig: the method signature inspected
6207 * @param_num: the 0-based index of the inspected parameter
6209 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6213 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6215 g_assert (param_num >= 0 && param_num < sig->param_count);
6216 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6220 * mono_signature_explicit_this:
6221 * @sig: the method signature inspected
6223 * Returns: #TRUE if this the method signature @sig has an explicit
6224 * instance argument. #FALSE otherwise.
6227 mono_signature_explicit_this (MonoMethodSignature *sig)
6229 return sig->explicit_this;
6232 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6234 mono_aligned_addr_hash (gconstpointer ptr)
6236 return GPOINTER_TO_UINT (ptr) >> 3;
6240 * If @field belongs to an inflated generic class, return the corresponding field of the
6241 * generic type definition class.
6244 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6249 if (!field->parent->generic_class)
6252 gtd = field->parent->generic_class->container_class;
6253 offset = field - field->parent->fields;
6254 return gtd->fields + offset;
6258 * If @event belongs to an inflated generic class, return the corresponding event of the
6259 * generic type definition class.
6262 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6267 if (!event->parent->generic_class)
6270 gtd = event->parent->generic_class->container_class;
6271 offset = event - event->parent->ext->events;
6272 return gtd->ext->events + offset;
6276 * If @property belongs to an inflated generic class, return the corresponding property of the
6277 * generic type definition class.
6280 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6285 if (!property->parent->generic_class)
6288 gtd = property->parent->generic_class->container_class;
6289 offset = property - property->parent->ext->properties;
6290 return gtd->ext->properties + offset;