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>
30 /* Auxiliary structure used for caching inflated signatures */
32 MonoMethodSignature *sig;
33 MonoGenericContext context;
34 } MonoInflatedMethodSignature;
36 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container, gboolean transient,
37 const char *ptr, const char **rptr);
39 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
40 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
41 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
42 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
43 gboolean signature_only);
44 static void free_generic_inst (MonoGenericInst *ginst);
45 static void free_generic_class (MonoGenericClass *ginst);
46 static void free_inflated_method (MonoMethodInflated *method);
47 static void free_inflated_signature (MonoInflatedMethodSignature *sig);
48 static void mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva, MonoMarshalSpec **marshal_spec, gboolean alloc_from_image);
51 * This enumeration is used to describe the data types in the metadata
62 /* Index into Blob heap */
65 /* Index into String heap */
71 /* Pointer into a table */
74 /* HasConstant:Parent pointer (Param, Field or Property) */
77 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
80 /* CustomAttributeType encoded index */
83 /* HasDeclSecurity index: TypeDef Method or Assembly */
86 /* Implementation coded index: File, Export AssemblyRef */
89 /* HasFieldMarshal coded index: Field or Param table */
92 /* MemberForwardedIndex: Field or Method */
95 /* TypeDefOrRef coded index: typedef, typeref, typespec */
98 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
101 /* MethodDefOrRef coded index: Method or Member Ref table */
104 /* HasSemantic coded index: Event or Property */
107 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
111 const static unsigned char TableSchemas [] = {
112 #define ASSEMBLY_SCHEMA_OFFSET 0
113 MONO_MT_UINT32, /* "HashId" }, */
114 MONO_MT_UINT16, /* "Major" }, */
115 MONO_MT_UINT16, /* "Minor" }, */
116 MONO_MT_UINT16, /* "BuildNumber" }, */
117 MONO_MT_UINT16, /* "RevisionNumber" }, */
118 MONO_MT_UINT32, /* "Flags" }, */
119 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
120 MONO_MT_STRING_IDX, /* "Name" }, */
121 MONO_MT_STRING_IDX, /* "Culture" }, */
124 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
125 MONO_MT_UINT32, /* "OSPlatformID" }, */
126 MONO_MT_UINT32, /* "OSMajor" }, */
127 MONO_MT_UINT32, /* "OSMinor" }, */
130 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
131 MONO_MT_UINT32, /* "Processor" }, */
134 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
135 MONO_MT_UINT16, /* "Major" }, */
136 MONO_MT_UINT16, /* "Minor" }, */
137 MONO_MT_UINT16, /* "Build" }, */
138 MONO_MT_UINT16, /* "Revision" }, */
139 MONO_MT_UINT32, /* "Flags" }, */
140 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
141 MONO_MT_STRING_IDX, /* "Name" }, */
142 MONO_MT_STRING_IDX, /* "Culture" }, */
143 MONO_MT_BLOB_IDX, /* "HashValue" }, */
146 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
147 MONO_MT_UINT32, /* "OSPlatformID" }, */
148 MONO_MT_UINT32, /* "OSMajorVersion" }, */
149 MONO_MT_UINT32, /* "OSMinorVersion" }, */
150 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
153 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
154 MONO_MT_UINT32, /* "Processor" }, */
155 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
158 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
159 MONO_MT_UINT16, /* "PackingSize" }, */
160 MONO_MT_UINT32, /* "ClassSize" }, */
161 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
164 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
165 MONO_MT_UINT8, /* "Type" }, */
166 MONO_MT_UINT8, /* "PaddingZero" }, */
167 MONO_MT_CONST_IDX, /* "Parent" }, */
168 MONO_MT_BLOB_IDX, /* "Value" }, */
171 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
172 MONO_MT_HASCAT_IDX, /* "Parent" }, */
173 MONO_MT_CAT_IDX, /* "Type" }, */
174 MONO_MT_BLOB_IDX, /* "Value" }, */
177 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
178 MONO_MT_UINT16, /* "Action" }, */
179 MONO_MT_HASDEC_IDX, /* "Parent" }, */
180 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
183 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
184 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
185 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
188 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
189 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
190 MONO_MT_STRING_IDX, /* "Name" }, */
191 MONO_MT_TDOR_IDX, /* "EventType" }, TypeDef or TypeRef or TypeSpec */
194 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
195 MONO_MT_TABLE_IDX, /* "Event" }, */
198 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
199 MONO_MT_UINT32, /* "Flags" }, */
200 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
201 MONO_MT_STRING_IDX, /* "TypeName" }, */
202 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
203 MONO_MT_IMPL_IDX, /* "Implementation" }, */
206 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
207 MONO_MT_UINT16, /* "Flags" }, */
208 MONO_MT_STRING_IDX, /* "Name" }, */
209 MONO_MT_BLOB_IDX, /* "Signature" }, */
212 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
213 MONO_MT_UINT32, /* "Offset" }, */
214 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
217 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
218 MONO_MT_HFM_IDX, /* "Parent" }, */
219 MONO_MT_BLOB_IDX, /* "NativeType" }, */
222 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
223 MONO_MT_UINT32, /* "RVA" }, */
224 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
227 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
228 MONO_MT_TABLE_IDX, /* "Field" }, */
231 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
232 MONO_MT_UINT32, /* "Flags" }, */
233 MONO_MT_STRING_IDX, /* "Name" }, */
234 MONO_MT_BLOB_IDX, /* "Value" }, */
237 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
238 MONO_MT_UINT16, /* "MappingFlag" }, */
239 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
240 MONO_MT_STRING_IDX, /* "ImportName" }, */
241 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
244 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
245 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
246 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
249 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
250 MONO_MT_UINT32, /* "Offset" }, */
251 MONO_MT_UINT32, /* "Flags" }, */
252 MONO_MT_STRING_IDX, /* "Name" }, */
253 MONO_MT_IMPL_IDX, /* "Implementation" }, */
256 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
257 MONO_MT_MRP_IDX, /* "Class" }, */
258 MONO_MT_STRING_IDX, /* "Name" }, */
259 MONO_MT_BLOB_IDX, /* "Signature" }, */
262 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
263 MONO_MT_UINT32, /* "RVA" }, */
264 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
265 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
266 MONO_MT_STRING_IDX, /* "Name" }, */
267 MONO_MT_BLOB_IDX, /* "Signature" }, */
268 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
271 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
272 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
273 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
274 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
277 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
278 MONO_MT_UINT16, /* "MethodSemantic" }, */
279 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
280 MONO_MT_HS_IDX, /* "Association" }, */
283 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
284 MONO_MT_TABLE_IDX, /* "Method" }, */
287 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
288 MONO_MT_UINT16, /* "Generation" }, */
289 MONO_MT_STRING_IDX, /* "Name" }, */
290 MONO_MT_GUID_IDX, /* "MVID" }, */
291 MONO_MT_GUID_IDX, /* "EncID" }, */
292 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
295 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
296 MONO_MT_STRING_IDX, /* "Name" }, */
299 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
300 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
301 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
304 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
305 MONO_MT_UINT16, /* "Flags" }, */
306 MONO_MT_UINT16, /* "Sequence" }, */
307 MONO_MT_STRING_IDX, /* "Name" }, */
310 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
311 MONO_MT_TABLE_IDX, /* "Param" }, */
314 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
315 MONO_MT_UINT16, /* "Flags" }, */
316 MONO_MT_STRING_IDX, /* "Name" }, */
317 MONO_MT_BLOB_IDX, /* "Type" }, */
320 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
321 MONO_MT_TABLE_IDX, /* "Property" }, */
324 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
325 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
326 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
329 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
330 MONO_MT_BLOB_IDX, /* "Signature" }, */
333 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
334 MONO_MT_UINT32, /* "Flags" }, */
335 MONO_MT_STRING_IDX, /* "Name" }, */
336 MONO_MT_STRING_IDX, /* "Namespace" }, */
337 MONO_MT_TDOR_IDX, /* "Extends" }, */
338 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
339 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
342 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
343 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
344 MONO_MT_STRING_IDX, /* "Name" }, */
345 MONO_MT_STRING_IDX, /* "Namespace" }, */
348 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
349 MONO_MT_BLOB_IDX, /* "Signature" }, */
352 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
353 MONO_MT_UINT16, /* "Number" }, */
354 MONO_MT_UINT16, /* "Flags" }, */
355 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
356 MONO_MT_STRING_IDX, /* "Name" }, */
359 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
360 MONO_MT_MDOR_IDX, /* "Method" }, */
361 MONO_MT_BLOB_IDX, /* "Signature" }, */
364 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
365 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
366 MONO_MT_TDOR_IDX, /* "Constraint" }, */
369 #define NULL_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
373 /* Must be the same order as MONO_TABLE_* */
374 const static unsigned char
375 table_description [] = {
376 MODULE_SCHEMA_OFFSET,
377 TYPEREF_SCHEMA_OFFSET,
378 TYPEDEF_SCHEMA_OFFSET,
379 FIELD_POINTER_SCHEMA_OFFSET,
381 METHOD_POINTER_SCHEMA_OFFSET,
382 METHOD_SCHEMA_OFFSET,
383 PARAM_POINTER_SCHEMA_OFFSET,
385 IFACEMAP_SCHEMA_OFFSET,
386 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
387 CONSTANT_SCHEMA_OFFSET,
388 CUSTOM_ATTR_SCHEMA_OFFSET,
389 FIELD_MARSHAL_SCHEMA_OFFSET,
390 DECL_SEC_SCHEMA_OFFSET,
391 CLASS_LAYOUT_SCHEMA_OFFSET,
392 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
393 STDALON_SIG_SCHEMA_OFFSET,
394 EVENTMAP_SCHEMA_OFFSET,
395 EVENT_POINTER_SCHEMA_OFFSET,
397 PROPERTY_MAP_SCHEMA_OFFSET,
398 PROPERTY_POINTER_SCHEMA_OFFSET,
399 PROPERTY_SCHEMA_OFFSET,
400 METHOD_SEMA_SCHEMA_OFFSET,
401 METHOD_IMPL_SCHEMA_OFFSET,
402 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
403 TYPESPEC_SCHEMA_OFFSET,
404 IMPLMAP_SCHEMA_OFFSET,
405 FIELD_RVA_SCHEMA_OFFSET,
408 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
409 ASSEMBLYPROC_SCHEMA_OFFSET,
410 ASSEMBLYOS_SCHEMA_OFFSET,
411 ASSEMBLYREF_SCHEMA_OFFSET,
412 ASSEMBLYREFPROC_SCHEMA_OFFSET,
413 ASSEMBLYREFOS_SCHEMA_OFFSET,
415 EXPORTED_TYPE_SCHEMA_OFFSET,
416 MANIFEST_SCHEMA_OFFSET,
417 NESTED_CLASS_SCHEMA_OFFSET,
418 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
419 METHOD_SPEC_SCHEMA_OFFSET,
420 GEN_CONSTRAINT_SCHEMA_OFFSET
423 #ifdef HAVE_ARRAY_ELEM_INIT
424 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
425 #define MSGSTRFIELD1(line) str##line
426 static const struct msgstr_t {
427 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
428 #include "mono/cil/tables.def"
431 #define TABLEDEF(a,b) b,
432 #include "mono/cil/tables.def"
435 static const gint16 tableidx [] = {
436 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
437 #include "mono/cil/tables.def"
442 #define TABLEDEF(a,b) b,
443 static const char* const
444 mono_tables_names [] = {
445 #include "mono/cil/tables.def"
452 * mono_meta_table_name:
453 * @table: table index
455 * Returns the name of the given ECMA metadata logical format table
456 * as described in ECMA 335, Partition II, Section 22.
458 * Returns: the name for the @table index
461 mono_meta_table_name (int table)
463 if ((table < 0) || (table > MONO_TABLE_LAST))
466 #ifdef HAVE_ARRAY_ELEM_INIT
467 return (const char*)&tablestr + tableidx [table];
469 return mono_tables_names [table];
473 /* The guy who wrote the spec for this should not be allowed near a
476 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
477 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
478 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
479 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
480 inverse of this mapping.
483 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
484 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
486 /* Reference: Partition II - 23.2.6 */
488 * mono_metadata_compute_size:
489 * @meta: metadata context
490 * @tableindex: metadata table number
491 * @result_bitfield: pointer to guint32 where to store additional info
493 * mono_metadata_compute_size() computes the lenght in bytes of a single
494 * row in a metadata table. The size of each column is encoded in the
495 * @result_bitfield return value along with the number of columns in the table.
496 * the resulting bitfield should be handed to the mono_metadata_table_size()
497 * and mono_metadata_table_count() macros.
498 * This is a Mono runtime internal only function.
501 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
503 guint32 bitfield = 0;
504 int size = 0, field_size = 0;
507 const unsigned char *description = TableSchemas + table_description [tableindex];
509 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
512 field_size = 4; break;
515 field_size = 2; break;
518 field_size = 1; break;
520 case MONO_MT_BLOB_IDX:
521 field_size = meta->idx_blob_wide ? 4 : 2; break;
523 case MONO_MT_STRING_IDX:
524 field_size = meta->idx_string_wide ? 4 : 2; break;
526 case MONO_MT_GUID_IDX:
527 field_size = meta->idx_guid_wide ? 4 : 2; break;
529 case MONO_MT_TABLE_IDX:
530 /* Uhm, a table index can point to other tables besides the current one
531 * so, it's not correct to use the rowcount of the current table to
532 * get the size for this column - lupus
534 switch (tableindex) {
535 case MONO_TABLE_ASSEMBLYREFOS:
537 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
538 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
540 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
541 case MONO_TABLE_CLASSLAYOUT:
543 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
544 case MONO_TABLE_EVENTMAP:
545 g_assert (i == 0 || i == 1);
546 field_size = i ? idx_size (MONO_TABLE_EVENT):
547 idx_size(MONO_TABLE_TYPEDEF);
549 case MONO_TABLE_EVENT_POINTER:
551 field_size = idx_size (MONO_TABLE_EVENT); break;
552 case MONO_TABLE_EXPORTEDTYPE:
554 /* the index is in another metadata file, so it must be 4 */
555 field_size = 4; break;
556 case MONO_TABLE_FIELDLAYOUT:
558 field_size = idx_size (MONO_TABLE_FIELD); break;
559 case MONO_TABLE_FIELDRVA:
561 field_size = idx_size (MONO_TABLE_FIELD); break;
562 case MONO_TABLE_FIELD_POINTER:
564 field_size = idx_size (MONO_TABLE_FIELD); break;
565 case MONO_TABLE_IMPLMAP:
567 field_size = idx_size (MONO_TABLE_MODULEREF); break;
568 case MONO_TABLE_INTERFACEIMPL:
570 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
571 case MONO_TABLE_METHOD:
573 field_size = idx_size (MONO_TABLE_PARAM); break;
574 case MONO_TABLE_METHODIMPL:
576 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
577 case MONO_TABLE_METHODSEMANTICS:
579 field_size = idx_size (MONO_TABLE_METHOD); break;
580 case MONO_TABLE_METHOD_POINTER:
582 field_size = idx_size (MONO_TABLE_METHOD); break;
583 case MONO_TABLE_NESTEDCLASS:
584 g_assert (i == 0 || i == 1);
585 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
586 case MONO_TABLE_PARAM_POINTER:
588 field_size = idx_size (MONO_TABLE_PARAM); break;
589 case MONO_TABLE_PROPERTYMAP:
590 g_assert (i == 0 || i == 1);
591 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
592 idx_size(MONO_TABLE_TYPEDEF);
594 case MONO_TABLE_PROPERTY_POINTER:
596 field_size = idx_size (MONO_TABLE_PROPERTY); break;
597 case MONO_TABLE_TYPEDEF:
598 g_assert (i == 4 || i == 5);
599 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
600 idx_size(MONO_TABLE_METHOD);
602 case MONO_TABLE_GENERICPARAM:
604 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
605 /*This is a coded token for 2 tables, so takes 1 bit */
606 field_size = rtsize (n, 16 - MONO_TYPEORMETHOD_BITS);
608 case MONO_TABLE_GENERICPARAMCONSTRAINT:
610 field_size = idx_size (MONO_TABLE_GENERICPARAM);
614 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
619 * HasConstant: ParamDef, FieldDef, Property
621 case MONO_MT_CONST_IDX:
622 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
623 meta->tables [MONO_TABLE_FIELD].rows);
624 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
626 /* 2 bits to encode tag */
627 field_size = rtsize (n, 16-2);
631 * HasCustomAttribute: points to any table but
634 case MONO_MT_HASCAT_IDX:
636 * We believe that since the signature and
637 * permission are indexing the Blob heap,
638 * we should consider the blob size first
640 /* I'm not a believer - lupus
641 if (meta->idx_blob_wide){
646 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
647 meta->tables [MONO_TABLE_FIELD].rows);
648 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
649 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
650 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
651 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
652 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
653 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
654 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
655 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
656 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
657 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
658 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
659 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
660 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
661 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
662 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
663 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
664 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
666 /* 5 bits to encode */
667 field_size = rtsize (n, 16-5);
671 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
672 * MemberRef and String.
674 case MONO_MT_CAT_IDX:
675 /* String is a heap, if it is wide, we know the size */
677 if (meta->idx_string_wide){
682 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
683 meta->tables [MONO_TABLE_TYPEDEF].rows);
684 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
685 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
687 /* 3 bits to encode */
688 field_size = rtsize (n, 16-3);
692 * HasDeclSecurity: Typedef, MethodDef, Assembly
694 case MONO_MT_HASDEC_IDX:
695 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
696 meta->tables [MONO_TABLE_METHOD].rows);
697 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
699 /* 2 bits to encode */
700 field_size = rtsize (n, 16-2);
704 * Implementation: File, AssemblyRef, ExportedType
706 case MONO_MT_IMPL_IDX:
707 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
708 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
709 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
711 /* 2 bits to encode tag */
712 field_size = rtsize (n, 16-2);
716 * HasFieldMarshall: FieldDef, ParamDef
718 case MONO_MT_HFM_IDX:
719 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
720 meta->tables [MONO_TABLE_PARAM].rows);
722 /* 1 bit used to encode tag */
723 field_size = rtsize (n, 16-1);
727 * MemberForwarded: FieldDef, MethodDef
730 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
731 meta->tables [MONO_TABLE_METHOD].rows);
733 /* 1 bit used to encode tag */
734 field_size = rtsize (n, 16-1);
738 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
740 * It is TypeDef, _TypeRef_, TypeSpec, instead.
742 case MONO_MT_TDOR_IDX:
743 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
744 meta->tables [MONO_TABLE_TYPEREF].rows);
745 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
747 /* 2 bits to encode */
748 field_size = rtsize (n, 16-2);
752 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
754 case MONO_MT_MRP_IDX:
755 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
756 meta->tables [MONO_TABLE_TYPEREF].rows);
757 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
758 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
759 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
760 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].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_return_val_if_fail (index < meta->heap_strings.size, "");
887 return meta->heap_strings.data + index;
891 * mono_metadata_user_string:
892 * @meta: metadata context
893 * @index: index into the user string heap.
895 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
898 mono_metadata_user_string (MonoImage *meta, guint32 index)
900 g_return_val_if_fail (index < meta->heap_us.size, "");
901 return meta->heap_us.data + index;
905 * mono_metadata_blob_heap:
906 * @meta: metadata context
907 * @index: index into the blob.
909 * Returns: an in-memory pointer to the @index in the Blob heap.
912 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
914 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
915 return meta->heap_blob.data + index;
919 * mono_metadata_guid_heap:
920 * @meta: metadata context
921 * @index: index into the guid heap.
923 * Returns: an in-memory pointer to the @index in the guid heap.
926 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
929 index *= 16; /* adjust for guid size and 1-based index */
930 g_return_val_if_fail (index < meta->heap_guid.size, "");
931 return meta->heap_guid.data + index;
934 static const unsigned char *
935 dword_align (const unsigned char *ptr)
937 #if SIZEOF_VOID_P == 8
938 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
940 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
945 * mono_metadata_decode_row:
946 * @t: table to extract information from.
947 * @idx: index in table.
948 * @res: array of @res_size cols to store the results in
950 * This decompresses the metadata element @idx in table @t
951 * into the guint32 @res array that has res_size elements
954 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
956 guint32 bitfield = t->size_bitfield;
957 int i, count = mono_metadata_table_count (bitfield);
960 g_assert (idx < t->rows);
962 data = t->base + idx * t->row_size;
964 g_assert (res_size == count);
966 for (i = 0; i < count; i++) {
967 int n = mono_metadata_table_size (bitfield, i);
971 res [i] = *data; break;
973 res [i] = read16 (data); break;
975 res [i] = read32 (data); break;
977 g_assert_not_reached ();
984 * mono_metadata_decode_row_col:
985 * @t: table to extract information from.
986 * @idx: index for row in table.
987 * @col: column in the row.
989 * This function returns the value of column @col from the @idx
990 * row in the table @t.
993 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
995 guint32 bitfield = t->size_bitfield;
997 register const char *data;
1000 g_assert (idx < t->rows);
1001 g_assert (col < mono_metadata_table_count (bitfield));
1002 data = t->base + idx * t->row_size;
1004 n = mono_metadata_table_size (bitfield, 0);
1005 for (i = 0; i < col; ++i) {
1007 n = mono_metadata_table_size (bitfield, i + 1);
1013 return read16 (data);
1015 return read32 (data);
1017 g_assert_not_reached ();
1023 * mono_metadata_decode_blob_size:
1024 * @ptr: pointer to a blob object
1025 * @rptr: the new position of the pointer
1027 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1029 * Returns: the size of the blob object
1032 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1034 const unsigned char *ptr = (const unsigned char *)xptr;
1037 if ((*ptr & 0x80) == 0){
1038 size = ptr [0] & 0x7f;
1040 } else if ((*ptr & 0x40) == 0){
1041 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1044 size = ((ptr [0] & 0x1f) << 24) +
1056 * mono_metadata_decode_value:
1057 * @ptr: pointer to decode from
1058 * @rptr: the new position of the pointer
1060 * This routine decompresses 32-bit values as specified in the "Blob and
1061 * Signature" section (22.2)
1063 * Returns: the decoded value
1066 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1068 const unsigned char *ptr = (const unsigned char *) _ptr;
1069 unsigned char b = *ptr;
1072 if ((b & 0x80) == 0){
1075 } else if ((b & 0x40) == 0){
1076 len = ((b & 0x3f) << 8 | ptr [1]);
1079 len = ((b & 0x1f) << 24) |
1092 * mono_metadata_decode_signed_value:
1093 * @ptr: pointer to decode from
1094 * @rptr: the new position of the pointer
1096 * This routine decompresses 32-bit signed values
1097 * (not specified in the spec)
1099 * Returns: the decoded value
1102 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1104 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1105 gint32 ival = uval >> 1;
1108 /* ival is a truncated 2's complement negative number. */
1110 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1113 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1114 return ival - 0x2000;
1115 if (ival < 0x10000000)
1116 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1117 return ival - 0x10000000;
1118 g_assert (ival < 0x20000000);
1119 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1120 return ival - 0x20000000;
1124 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1125 * using the *Ptr tables in uncompressed metadata, if they are available.
1127 * FIXME: The caller is not forced to call this function, which is error-prone, since
1128 * forgetting to call it would only show up as a bug on uncompressed metadata.
1131 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1133 if (!image->uncompressed_metadata)
1137 case MONO_TABLE_METHOD:
1138 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1139 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1142 case MONO_TABLE_FIELD:
1143 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1144 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1147 case MONO_TABLE_EVENT:
1148 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1149 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1152 case MONO_TABLE_PROPERTY:
1153 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1154 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1157 case MONO_TABLE_PARAM:
1158 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1159 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1168 * mono_metadata_decode_table_row:
1170 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1171 * uncompressed metadata into account, so it should be used to access the
1172 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1173 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1176 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1178 if (image->uncompressed_metadata)
1179 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1181 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1185 * mono_metadata_decode_table_row_col:
1187 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1188 * uncompressed metadata into account, so it should be used to access the
1189 * Method, Field, Param and Event tables.
1191 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1193 if (image->uncompressed_metadata)
1194 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1196 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1200 * mono_metadata_parse_typedef_or_ref:
1201 * @m: a metadata context.
1202 * @ptr: a pointer to an encoded TypedefOrRef in @m
1203 * @rptr: pointer updated to match the end of the decoded stream
1205 * Returns: a token valid in the @m metadata decoded from
1206 * the compressed representation.
1209 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1212 token = mono_metadata_decode_value (ptr, &ptr);
1215 return mono_metadata_token_from_dor (token);
1219 * mono_metadata_parse_custom_mod:
1220 * @m: a metadata context.
1221 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1222 * @ptr: a pointer to (possibly) the start of a custom modifier list
1223 * @rptr: pointer updated to match the end of the decoded stream
1225 * Checks if @ptr points to a type custom modifier compressed representation.
1227 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1230 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1232 MonoCustomMod local;
1233 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1236 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1237 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1244 * mono_metadata_parse_array_internal:
1245 * @m: a metadata context.
1246 * @transient: whenever to allocate data from the heap
1247 * @ptr: a pointer to an encoded array description.
1248 * @rptr: pointer updated to match the end of the decoded stream
1250 * Decodes the compressed array description found in the metadata @m at @ptr.
1252 * Returns: a #MonoArrayType structure describing the array type
1253 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1254 * on the value of @transient.
1256 * LOCKING: Acquires the loader lock
1258 static MonoArrayType *
1259 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1260 gboolean transient, const char *ptr, const char **rptr)
1263 MonoArrayType *array;
1266 array = transient ? g_malloc0 (sizeof (MonoArrayType)) : mono_image_alloc0 (m, sizeof (MonoArrayType));
1267 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1270 array->eklass = mono_class_from_mono_type (etype);
1271 array->rank = mono_metadata_decode_value (ptr, &ptr);
1273 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1274 if (array->numsizes)
1275 array->sizes = transient ? g_malloc0 (sizeof (int) * array->numsizes) : mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1276 for (i = 0; i < array->numsizes; ++i)
1277 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1279 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1280 if (array->numlobounds)
1281 array->lobounds = transient ? g_malloc0 (sizeof (int) * array->numlobounds) : mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1282 for (i = 0; i < array->numlobounds; ++i)
1283 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1291 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1292 const char *ptr, const char **rptr)
1294 return mono_metadata_parse_array_internal (m, container, FALSE, ptr, rptr);
1298 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1300 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1304 * mono_metadata_free_array:
1305 * @array: array description
1307 * Frees the array description returned from mono_metadata_parse_array().
1310 mono_metadata_free_array (MonoArrayType *array)
1312 g_free (array->sizes);
1313 g_free (array->lobounds);
1318 * need to add common field and param attributes combinations:
1321 * public static literal
1324 * private static literal
1326 static const MonoType
1328 /* data, attrs, type, nmods, byref, pinned */
1329 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1330 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1331 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1332 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1333 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1334 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1335 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1336 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1337 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1338 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1339 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1340 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1341 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1342 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1343 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1344 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1345 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1346 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1347 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1348 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1349 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1350 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1351 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1352 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1353 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1354 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1355 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1356 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1357 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1358 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1359 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1360 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1361 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1362 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1365 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1367 static GHashTable *type_cache = NULL;
1368 static int next_generic_inst_id = 0;
1370 static MonoImageSet *mscorlib_image_set;
1371 static GPtrArray *image_sets;
1373 static guint mono_generic_class_hash (gconstpointer data);
1376 * MonoTypes with modifies are never cached, so we never check or use that field.
1379 mono_type_hash (gconstpointer data)
1381 const MonoType *type = (const MonoType *) data;
1382 if (type->type == MONO_TYPE_GENERICINST)
1383 return mono_generic_class_hash (type->data.generic_class);
1385 return type->type | (type->byref << 8) | (type->attrs << 9);
1389 mono_type_equal (gconstpointer ka, gconstpointer kb)
1391 const MonoType *a = (const MonoType *) ka;
1392 const MonoType *b = (const MonoType *) kb;
1394 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1396 /* need other checks */
1401 mono_metadata_generic_inst_hash (gconstpointer data)
1403 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1407 for (i = 0; i < ginst->type_argc; ++i) {
1409 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1412 return hash ^ (ginst->is_open << 8);
1416 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1420 #ifndef MONO_SMALL_CONFIG
1421 if (a->id && b->id) {
1424 if (!signature_only)
1429 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1431 for (i = 0; i < a->type_argc; ++i) {
1432 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1439 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1441 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1442 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1444 return mono_generic_inst_equal_full (a, b, FALSE);
1448 mono_generic_class_hash (gconstpointer data)
1450 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1451 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1454 hash += gclass->is_tb_open;
1455 hash += mono_metadata_generic_context_hash (&gclass->context);
1461 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1463 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1464 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1466 return _mono_metadata_generic_class_equal (a, b, FALSE);
1470 * mono_metadata_init:
1472 * Initialize the global variables of this module.
1473 * This is a Mono runtime internal function.
1476 mono_metadata_init (void)
1480 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1482 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1483 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1487 * mono_metadata_cleanup:
1489 * Free all resources used by this module.
1490 * This is a Mono runtime internal function.
1493 mono_metadata_cleanup (void)
1495 g_hash_table_destroy (type_cache);
1497 g_ptr_array_free (image_sets, TRUE);
1502 * mono_metadata_parse_type:
1503 * @m: metadata context
1504 * @mode: king of type that may be found at @ptr
1505 * @opt_attrs: optional attributes to store in the returned type
1506 * @ptr: pointer to the type representation
1507 * @rptr: pointer updated to match the end of the decoded stream
1508 * @transient: whenever to allocate the result from the heap or from a mempool
1510 * Decode a compressed type description found at @ptr in @m.
1511 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1512 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1513 * This function can be used to decode type descriptions in method signatures,
1514 * field signatures, locals signatures etc.
1516 * To parse a generic type, `generic_container' points to the current class'es
1517 * (the `generic_container' field in the MonoClass) or the current generic method's
1518 * (stored in image->property_hash) generic container.
1519 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1520 * this MonoGenericContainer.
1522 * LOCKING: Acquires the loader lock.
1524 * Returns: a #MonoType structure representing the decoded type.
1527 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1528 short opt_attrs, gboolean transient, const char *ptr, const char **rptr)
1530 MonoType *type, *cached;
1532 gboolean byref = FALSE;
1533 gboolean pinned = FALSE;
1534 const char *tmp_ptr;
1539 * According to the spec, custom modifiers should come before the byref
1540 * flag, but the IL produced by ilasm from the following signature:
1541 * object modopt(...) &
1542 * starts with a byref flag, followed by the modifiers. (bug #49802)
1543 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1544 * it would be better to treat byref as real type constructor instead of
1546 * Also, pinned should come before anything else, but some MSV++ produced
1547 * assemblies violate this (#bug 61990).
1550 /* Count the modifiers first */
1555 case MONO_TYPE_PINNED:
1556 case MONO_TYPE_BYREF:
1559 case MONO_TYPE_CMOD_REQD:
1560 case MONO_TYPE_CMOD_OPT:
1562 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1572 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1573 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1574 type->num_mods = count;
1576 g_warning ("got more than 64 modifiers in type");
1579 memset (type, 0, MONO_SIZEOF_TYPE);
1582 /* Parse pinned, byref and custom modifiers */
1587 case MONO_TYPE_PINNED:
1591 case MONO_TYPE_BYREF:
1595 case MONO_TYPE_CMOD_REQD:
1596 case MONO_TYPE_CMOD_OPT:
1597 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1605 type->attrs = opt_attrs;
1606 type->byref = byref;
1607 type->pinned = pinned ? 1 : 0;
1609 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr)) {
1616 if (!type->num_mods && !transient) {
1617 /* no need to free type here, because it is on the stack */
1618 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1619 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1621 /* Consider the case:
1623 class Foo<T> { class Bar {} }
1624 class Test : Foo<Test>.Bar {}
1626 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1627 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1629 We ensure that the MonoClass is in a state that we can canonicalize to:
1631 klass->byval_arg.data.klass == klass
1632 klass->this_arg.data.klass == klass
1634 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1636 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1637 of a MonoClass which currently holds the loader lock. 'type' is local.
1639 if (ret->data.klass == type->data.klass) {
1643 /* No need to use locking since nobody is modifying the hash table */
1644 if ((cached = g_hash_table_lookup (type_cache, type))) {
1649 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1651 if (type == &stype) {
1652 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1653 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1659 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1660 short opt_attrs, const char *ptr, const char **rptr)
1662 return mono_metadata_parse_type_internal (m, container, mode, opt_attrs, FALSE, ptr, rptr);
1666 * LOCKING: Acquires the loader lock.
1669 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1670 const char *ptr, const char **rptr)
1672 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1676 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1678 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1679 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1680 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1682 if (def < methodt->rows)
1683 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1685 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1687 for (i = param_index; i < lastp; ++i) {
1688 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1697 * mono_metadata_get_param_attrs:
1699 * @m The image to loader parameter attributes from
1700 * @def method def token (one based)
1701 * @param_count number of params to decode including the return value
1703 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1704 * returned memory needs to be freed by the caller. If all the param attributes are
1705 * 0, then NULL is returned.
1708 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1710 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1711 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1712 guint32 cols [MONO_PARAM_SIZE];
1713 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1716 if (def < methodt->rows)
1717 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1719 lastp = paramt->rows + 1;
1721 for (i = param_index; i < lastp; ++i) {
1722 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1723 if (cols [MONO_PARAM_FLAGS]) {
1725 pattrs = g_new0 (int, param_count);
1726 /* at runtime we just ignore this kind of malformed file:
1727 * the verifier can signal the error to the user
1729 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1731 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1739 * mono_metadata_parse_signature_full:
1740 * @image: metadata context
1741 * @generic_container: generic container
1742 * @toke: metadata token
1744 * Decode a method signature stored in the STANDALONESIG table
1746 * LOCKING: Assumes the loader lock is held.
1748 * Returns: a MonoMethodSignature describing the signature.
1750 MonoMethodSignature*
1751 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1753 MonoTableInfo *tables = image->tables;
1754 guint32 idx = mono_metadata_token_index (token);
1759 return mono_lookup_dynamic_token (image, token, NULL);
1761 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1763 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1765 ptr = mono_metadata_blob_heap (image, sig);
1766 mono_metadata_decode_blob_size (ptr, &ptr);
1768 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1772 * mono_metadata_parse_signature:
1773 * @image: metadata context
1774 * @toke: metadata token
1776 * Decode a method signature stored in the STANDALONESIG table
1778 * Returns: a MonoMethodSignature describing the signature.
1780 MonoMethodSignature*
1781 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1783 return mono_metadata_parse_signature_full (image, NULL, token);
1787 * mono_metadata_signature_alloc:
1788 * @image: metadata context
1789 * @nparmas: number of parameters in the signature
1791 * Allocate a MonoMethodSignature structure with the specified number of params.
1792 * The return type and the params types need to be filled later.
1793 * This is a Mono runtime internal function.
1795 * LOCKING: Assumes the loader lock is held.
1797 * Returns: the new MonoMethodSignature structure.
1799 MonoMethodSignature*
1800 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1802 MonoMethodSignature *sig;
1804 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1805 sig->param_count = nparams;
1806 sig->sentinelpos = -1;
1811 static MonoMethodSignature*
1812 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1815 MonoMethodSignature *ret;
1816 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1819 ret = mono_image_alloc (image, sigsize);
1821 ret = mono_mempool_alloc (mp, sigsize);
1823 ret = g_malloc (sigsize);
1825 memcpy (ret, sig, sigsize);
1829 MonoMethodSignature*
1830 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1832 return mono_metadata_signature_dup_internal (image, NULL, sig);
1835 /*The mempool is accessed without synchronization*/
1836 MonoMethodSignature*
1837 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1839 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1843 * mono_metadata_signature_dup:
1844 * @sig: method signature
1846 * Duplicate an existing MonoMethodSignature so it can be modified.
1847 * This is a Mono runtime internal function.
1849 * Returns: the new MonoMethodSignature structure.
1851 MonoMethodSignature*
1852 mono_metadata_signature_dup (MonoMethodSignature *sig)
1854 return mono_metadata_signature_dup_full (NULL, sig);
1858 * mono_metadata_signature_size:
1860 * Return the amount of memory allocated to SIG.
1863 mono_metadata_signature_size (MonoMethodSignature *sig)
1865 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1869 * mono_metadata_parse_method_signature:
1870 * @m: metadata context
1871 * @generic_container: generics container
1872 * @def: the MethodDef index or 0 for Ref signatures.
1873 * @ptr: pointer to the signature metadata representation
1874 * @rptr: pointer updated to match the end of the decoded stream
1876 * Decode a method signature stored at @ptr.
1877 * This is a Mono runtime internal function.
1879 * LOCKING: Assumes the loader lock is held.
1881 * Returns: a MonoMethodSignature describing the signature.
1883 MonoMethodSignature *
1884 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1885 int def, const char *ptr, const char **rptr)
1887 MonoMethodSignature *method;
1888 int i, *pattrs = NULL;
1889 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1890 guint32 gen_param_count = 0;
1891 gboolean is_open = FALSE;
1894 gen_param_count = 1;
1899 call_convention = *ptr & 0x0F;
1901 if (gen_param_count)
1902 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1903 param_count = mono_metadata_decode_value (ptr, &ptr);
1906 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 */
1908 method = mono_metadata_signature_alloc (m, param_count);
1909 method->hasthis = hasthis;
1910 method->explicit_this = explicit_this;
1911 method->call_convention = call_convention;
1912 method->generic_param_count = gen_param_count;
1914 if (call_convention != 0xa) {
1915 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1917 mono_metadata_free_method_signature (method);
1921 is_open = mono_class_is_open_constructed_type (method->ret);
1924 for (i = 0; i < method->param_count; ++i) {
1925 if (*ptr == MONO_TYPE_SENTINEL) {
1926 if (method->call_convention != MONO_CALL_VARARG || def) {
1927 g_warning ("found sentinel for methoddef or no vararg method 0x%08x on image %s", def, m->name);
1931 if (method->sentinelpos >= 0) {
1932 g_warning ("found sentinel twice in the same signature for method 0x%08x on image %s", def, m->name);
1936 method->sentinelpos = i;
1939 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1940 if (!method->params [i]) {
1941 mono_metadata_free_method_signature (method);
1946 is_open = mono_class_is_open_constructed_type (method->params [i]);
1949 /* The sentinel could be missing if the caller does not pass any additional arguments */
1950 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1951 method->sentinelpos = method->param_count;
1953 method->has_type_parameters = is_open;
1955 if (def && (method->call_convention == MONO_CALL_VARARG))
1956 method->sentinelpos = method->param_count;
1963 * Add signature to a cache and increase ref count...
1970 * mono_metadata_parse_method_signature:
1971 * @m: metadata context
1972 * @def: the MethodDef index or 0 for Ref signatures.
1973 * @ptr: pointer to the signature metadata representation
1974 * @rptr: pointer updated to match the end of the decoded stream
1976 * Decode a method signature stored at @ptr.
1977 * This is a Mono runtime internal function.
1979 * LOCKING: Assumes the loader lock is held.
1981 * Returns: a MonoMethodSignature describing the signature.
1983 MonoMethodSignature *
1984 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1986 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1990 * mono_metadata_free_method_signature:
1991 * @sig: signature to destroy
1993 * Free the memory allocated in the signature @sig.
1994 * This method needs to be robust and work also on partially-built
1995 * signatures, so it does extra checks.
1998 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2000 /* Everything is allocated from mempools */
2004 mono_metadata_free_type (sig->ret);
2005 for (i = 0; i < sig->param_count; ++i) {
2006 if (sig->params [i])
2007 mono_metadata_free_type (sig->params [i]);
2013 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2017 /* Allocated in inflate_generic_signature () */
2019 mono_metadata_free_type (sig->ret);
2020 for (i = 0; i < sig->param_count; ++i) {
2021 if (sig->params [i])
2022 mono_metadata_free_type (sig->params [i]);
2028 inflated_method_equal (gconstpointer a, gconstpointer b)
2030 const MonoMethodInflated *ma = a;
2031 const MonoMethodInflated *mb = b;
2032 if (ma->declaring != mb->declaring)
2034 if (ma->method.method.is_mb_open != mb->method.method.is_mb_open)
2036 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2040 inflated_method_hash (gconstpointer a)
2042 const MonoMethodInflated *ma = a;
2043 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->method.method.is_mb_open;
2047 inflated_signature_equal (gconstpointer a, gconstpointer b)
2049 const MonoInflatedMethodSignature *sig1 = a;
2050 const MonoInflatedMethodSignature *sig2 = b;
2052 /* sig->sig is assumed to be canonized */
2053 if (sig1->sig != sig2->sig)
2055 /* The generic instances are canonized */
2056 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2060 inflated_signature_hash (gconstpointer a)
2062 const MonoInflatedMethodSignature *sig = a;
2064 /* sig->sig is assumed to be canonized */
2065 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2069 dump_ginst (MonoGenericInst *ginst)
2074 g_print ("Ginst: <");
2075 for (i = 0; i < ginst->type_argc; ++i) {
2078 name = mono_type_get_name (ginst->type_argv [i]);
2079 g_print ("%s", name);
2085 static gboolean type_in_image (MonoType *type, MonoImage *image);
2088 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2090 gpointer iter = NULL;
2093 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2094 if (type_in_image (p, image))
2097 return type_in_image (mono_signature_get_return_type (sig), image);
2101 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2105 for (i = 0; i < ginst->type_argc; ++i) {
2106 if (type_in_image (ginst->type_argv [i], image))
2114 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2116 return gclass->container_class->image == image ||
2117 ginst_in_image (gclass->context.class_inst, image);
2121 type_in_image (MonoType *type, MonoImage *image)
2124 switch (type->type) {
2125 case MONO_TYPE_GENERICINST:
2126 return gclass_in_image (type->data.generic_class, image);
2128 type = type->data.type;
2130 case MONO_TYPE_SZARRAY:
2131 type = &type->data.klass->byval_arg;
2133 case MONO_TYPE_ARRAY:
2134 type = &type->data.array->eklass->byval_arg;
2136 case MONO_TYPE_FNPTR:
2137 return signature_in_image (type->data.method, image);
2138 case MONO_TYPE_VAR: {
2139 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2141 g_assert (!container->is_method);
2143 * FIXME: The following check is here solely
2144 * for monodis, which uses the internal
2146 * mono_metadata_load_generic_params(). The
2147 * caller of that function needs to fill in
2148 * owner->klass or owner->method of the
2149 * returned struct, but monodis doesn't do
2150 * that. The image unloading depends on that,
2151 * however, so a crash results without this
2154 if (!container->owner.klass)
2155 return container->image == image;
2156 return container->owner.klass->image == image;
2158 return type->data.generic_param->image == image;
2161 case MONO_TYPE_MVAR: {
2162 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2163 if (type->data.generic_param->image == image)
2166 g_assert (container->is_method);
2167 if (!container->owner.method)
2168 /* RefEmit created generic param whose method is not finished */
2169 return container->image == image;
2170 return container->owner.method->klass->image == image;
2172 return type->data.generic_param->image == image;
2176 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2177 return image == mono_class_from_mono_type (type)->image;
2184 * Return a MonoImageSet representing the set of images in IMAGES.
2186 * LOCKING: Assumes the loader lock is held.
2188 static MonoImageSet*
2189 get_image_set (MonoImage **images, int nimages)
2196 image_sets = g_ptr_array_new ();
2199 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2200 return mscorlib_image_set;
2202 /* Happens with empty generic instances */
2204 return mscorlib_image_set;
2206 if (images [0] == mono_defaults.corlib && nimages > 1)
2207 l = images [1]->image_sets;
2209 l = images [0]->image_sets;
2212 for (; l; l = l->next) {
2215 if (set->nimages == nimages) {
2216 for (j = 0; j < nimages; ++j) {
2217 for (k = 0; k < nimages; ++k)
2218 if (set->images [k] == images [j])
2232 set = g_new0 (MonoImageSet, 1);
2233 set->nimages = nimages;
2234 set->images = g_new0 (MonoImage*, nimages);
2235 InitializeCriticalSection (&set->lock);
2236 for (i = 0; i < nimages; ++i)
2237 set->images [i] = images [i];
2238 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2239 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2240 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2241 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2243 for (i = 0; i < nimages; ++i)
2244 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2246 g_ptr_array_add (image_sets, set);
2249 if (nimages == 1 && images [0] == mono_defaults.corlib)
2250 mscorlib_image_set = set;
2256 delete_image_set (MonoImageSet *set)
2260 g_hash_table_destroy (set->gclass_cache);
2261 g_hash_table_destroy (set->ginst_cache);
2262 g_hash_table_destroy (set->gmethod_cache);
2263 g_hash_table_destroy (set->gsignature_cache);
2265 for (i = 0; i < set->nimages; ++i)
2266 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2268 g_ptr_array_remove (image_sets, set);
2271 mono_mempool_destroy (set->mempool);
2272 g_free (set->images);
2273 DeleteCriticalSection (&set->lock);
2278 mono_image_set_lock (MonoImageSet *set)
2280 EnterCriticalSection (&set->lock);
2284 mono_image_set_unlock (MonoImageSet *set)
2286 LeaveCriticalSection (&set->lock);
2290 mono_image_set_alloc (MonoImageSet *set, guint size)
2294 mono_image_set_lock (set);
2296 set->mempool = mono_mempool_new_size (1024);
2297 res = mono_mempool_alloc (set->mempool, size);
2298 mono_image_set_unlock (set);
2304 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2308 mono_image_set_lock (set);
2310 set->mempool = mono_mempool_new_size (1024);
2311 res = mono_mempool_alloc0 (set->mempool, size);
2312 mono_image_set_unlock (set);
2318 mono_image_set_strdup (MonoImageSet *set, const char *s)
2322 mono_image_set_lock (set);
2324 set->mempool = mono_mempool_new_size (1024);
2325 res = mono_mempool_strdup (set->mempool, s);
2326 mono_image_set_unlock (set);
2332 * Structure used by the collect_..._images functions to store the image list.
2335 MonoImage *image_buf [64];
2337 int nimages, images_len;
2341 collect_data_init (CollectData *data)
2343 data->images = data->image_buf;
2344 data->images_len = 64;
2349 collect_data_free (CollectData *data)
2351 if (data->images != data->image_buf)
2352 g_free (data->images);
2356 enlarge_data (CollectData *data)
2358 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2359 MonoImage **d = g_new (MonoImage *, new_len);
2362 g_assert_not_reached ();
2363 memcpy (d, data->images, data->images_len);
2364 if (data->images != data->image_buf)
2365 g_free (data->images);
2367 data->images_len = new_len;
2371 add_image (MonoImage *image, CollectData *data)
2375 /* The arrays are small, so use a linear search instead of a hash table */
2376 for (i = 0; i < data->nimages; ++i)
2377 if (data->images [i] == image)
2380 if (data->nimages == data->images_len)
2381 enlarge_data (data);
2383 data->images [data->nimages ++] = image;
2387 collect_type_images (MonoType *type, CollectData *data);
2390 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2394 for (i = 0; i < ginst->type_argc; ++i) {
2395 collect_type_images (ginst->type_argv [i], data);
2400 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2402 add_image (gclass->container_class->image, data);
2403 if (gclass->context.class_inst)
2404 collect_ginst_images (gclass->context.class_inst, data);
2408 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2410 gpointer iter = NULL;
2413 collect_type_images (mono_signature_get_return_type (sig), data);
2414 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2415 collect_type_images (p, data);
2419 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2421 collect_signature_images (sig->sig, data);
2422 if (sig->context.class_inst)
2423 collect_ginst_images (sig->context.class_inst, data);
2424 if (sig->context.method_inst)
2425 collect_ginst_images (sig->context.method_inst, data);
2429 collect_method_images (MonoMethodInflated *method, CollectData *data)
2431 add_image (method->declaring->klass->image, data);
2432 if (method->context.class_inst)
2433 collect_ginst_images (method->context.class_inst, data);
2434 if (method->context.method_inst)
2435 collect_ginst_images (method->context.method_inst, data);
2437 if (((MonoMethod*)method)->signature)
2438 collect_signature_images (mono_method_signature ((MonoMethod*)method), data);
2443 collect_type_images (MonoType *type, CollectData *data)
2446 switch (type->type) {
2447 case MONO_TYPE_GENERICINST:
2448 collect_gclass_images (type->data.generic_class, data);
2451 type = type->data.type;
2453 case MONO_TYPE_SZARRAY:
2454 type = &type->data.klass->byval_arg;
2456 case MONO_TYPE_ARRAY:
2457 type = &type->data.array->eklass->byval_arg;
2459 case MONO_TYPE_FNPTR:
2460 //return signature_in_image (type->data.method, image);
2461 g_assert_not_reached ();
2462 case MONO_TYPE_VAR: {
2463 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2465 g_assert (!container->is_method);
2467 * FIXME: The following check is here solely
2468 * for monodis, which uses the internal
2470 * mono_metadata_load_generic_params(). The
2471 * caller of that function needs to fill in
2472 * owner->klass or owner->method of the
2473 * returned struct, but monodis doesn't do
2474 * that. The image unloading depends on that,
2475 * however, so a crash results without this
2478 if (!container->owner.klass)
2479 add_image (container->image, data);
2481 add_image (container->owner.klass->image, data);
2483 add_image (type->data.generic_param->image, data);
2487 case MONO_TYPE_MVAR: {
2488 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2489 if (type->data.generic_param->image)
2490 add_image (type->data.generic_param->image, data);
2492 if (!container->owner.method) {
2493 /* RefEmit created generic param whose method is not finished */
2494 add_image (container->image, data);
2496 g_assert (container->is_method);
2497 add_image (container->owner.method->klass->image, data);
2500 add_image (type->data.generic_param->image, data);
2504 case MONO_TYPE_CLASS:
2505 case MONO_TYPE_VALUETYPE:
2506 add_image (mono_class_from_mono_type (type)->image, data);
2509 add_image (mono_defaults.corlib, data);
2516 } CleanForImageUserData;
2519 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2521 MonoGenericClass *gclass = key;
2522 CleanForImageUserData *user_data = data;
2524 g_assert (gclass_in_image (gclass, user_data->image));
2526 user_data->list = g_slist_prepend (user_data->list, gclass);
2531 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2533 MonoGenericInst *ginst = key;
2534 CleanForImageUserData *user_data = data;
2536 // This doesn't work during corlib compilation
2537 //g_assert (ginst_in_image (ginst, user_data->image));
2539 user_data->list = g_slist_prepend (user_data->list, ginst);
2544 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2546 MonoImage *image = data;
2547 MonoMethodInflated *method = key;
2550 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2551 g_assert (method->declaring->klass->image == image ||
2552 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2553 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2559 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2561 MonoImage *image = data;
2562 MonoInflatedMethodSignature *sig = key;
2564 return signature_in_image (sig->sig, image) ||
2565 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2566 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2570 check_gmethod (gpointer key, gpointer value, gpointer data)
2572 MonoMethodInflated *method = key;
2573 MonoImage *image = data;
2575 if (method->context.class_inst)
2576 g_assert (!ginst_in_image (method->context.class_inst, image));
2577 if (method->context.method_inst)
2578 g_assert (!ginst_in_image (method->context.method_inst, image));
2579 if (((MonoMethod*)method)->signature)
2580 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2586 * Run a consistency check on the image set data structures.
2588 static G_GNUC_UNUSED void
2589 check_image_sets (MonoImage *image)
2592 GSList *l = image->image_sets;
2597 for (i = 0; i < image_sets->len; ++i) {
2598 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2600 if (!g_slist_find (l, set)) {
2601 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2607 mono_metadata_clean_for_image (MonoImage *image)
2609 CleanForImageUserData ginst_data, gclass_data;
2610 GSList *l, *set_list, *free_list = NULL;
2612 //check_image_sets (image);
2615 * The data structures could reference each other so we delete them in two phases.
2616 * This is required because of the hashing functions in gclass/ginst_cache.
2618 ginst_data.image = gclass_data.image = image;
2619 ginst_data.list = gclass_data.list = NULL;
2620 mono_loader_lock ();
2622 /* Collect the items to delete */
2623 /* delete_image_set () modifies the lists so make a copy */
2624 for (l = image->image_sets; l; l = l->next) {
2625 MonoImageSet *set = l->data;
2627 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2628 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2629 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2630 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2633 /* Delete the removed items */
2634 for (l = ginst_data.list; l; l = l->next)
2635 free_generic_inst (l->data);
2636 for (l = gclass_data.list; l; l = l->next)
2637 free_generic_class (l->data);
2638 g_slist_free (ginst_data.list);
2639 g_slist_free (gclass_data.list);
2640 /* delete_image_set () modifies the lists so make a copy */
2641 set_list = g_slist_copy (image->image_sets);
2642 for (l = set_list; l; l = l->next) {
2643 MonoImageSet *set = l->data;
2645 delete_image_set (set);
2647 g_slist_free (set_list);
2649 mono_loader_unlock ();
2655 free_inflated_method (MonoMethodInflated *imethod)
2658 MonoMethod *method = (MonoMethod*)imethod;
2660 mono_marshal_free_inflated_wrappers (method);
2662 if (method->signature)
2663 mono_metadata_free_inflated_signature (method->signature);
2665 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))) {
2666 MonoMethodHeader *header = imethod->header;
2669 /* Allocated in inflate_generic_header () */
2670 for (i = 0; i < header->num_locals; ++i)
2671 mono_metadata_free_type (header->locals [i]);
2672 g_free (header->clauses);
2681 free_generic_inst (MonoGenericInst *ginst)
2685 /* The ginst itself is allocated from the image set mempool */
2686 for (i = 0; i < ginst->type_argc; ++i)
2687 mono_metadata_free_type (ginst->type_argv [i]);
2691 free_generic_class (MonoGenericClass *gclass)
2693 /* The gclass itself is allocated from the image set mempool */
2694 if (gclass->is_dynamic)
2695 mono_reflection_free_dynamic_generic_class (gclass);
2696 if (gclass->cached_class && gclass->cached_class->interface_id)
2697 mono_unload_interface_id (gclass->cached_class);
2701 free_inflated_signature (MonoInflatedMethodSignature *sig)
2703 mono_metadata_free_inflated_signature (sig->sig);
2708 * LOCKING: assumes the loader lock is held.
2711 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2716 collect_data_init (&data);
2718 collect_method_images (method, &data);
2720 set = get_image_set (data.images, data.nimages);
2722 collect_data_free (&data);
2725 g_hash_table_insert (set->gmethod_cache, method, method);
2729 return g_hash_table_lookup (set->gmethod_cache, method);
2734 * mono_metadata_get_inflated_signature:
2736 * Given an inflated signature and a generic context, return a canonical copy of the
2737 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2739 MonoMethodSignature *
2740 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2742 MonoInflatedMethodSignature helper;
2743 MonoInflatedMethodSignature *res;
2747 mono_loader_lock ();
2750 helper.context.class_inst = context->class_inst;
2751 helper.context.method_inst = context->method_inst;
2753 collect_data_init (&data);
2755 collect_inflated_signature_images (&helper, &data);
2757 set = get_image_set (data.images, data.nimages);
2759 collect_data_free (&data);
2761 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2763 res = g_new0 (MonoInflatedMethodSignature, 1);
2765 res->context.class_inst = context->class_inst;
2766 res->context.method_inst = context->method_inst;
2767 g_hash_table_insert (set->gsignature_cache, res, res);
2770 mono_loader_unlock ();
2775 * mono_metadata_get_generic_inst:
2777 * Given a list of types, return a MonoGenericInst that represents that list.
2778 * The returned MonoGenericInst has its own copy of the list of types. The list
2779 * passed in the argument can be freed, modified or disposed of.
2783 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2785 MonoGenericInst *ginst;
2788 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2792 for (i = 0; i < type_argc; ++i)
2793 if (mono_class_is_open_constructed_type (type_argv [i]))
2795 is_open = (i < type_argc);
2797 ginst = g_alloca (size);
2798 memset (ginst, 0, sizeof (MonoGenericInst));
2799 ginst->is_open = is_open;
2800 ginst->type_argc = type_argc;
2801 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2803 mono_loader_lock ();
2805 collect_data_init (&data);
2807 collect_ginst_images (ginst, &data);
2809 set = get_image_set (data.images, data.nimages);
2811 collect_data_free (&data);
2813 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2815 ginst = mono_image_set_alloc0 (set, size);
2816 #ifndef MONO_SMALL_CONFIG
2817 ginst->id = ++next_generic_inst_id;
2819 ginst->is_open = is_open;
2820 ginst->type_argc = type_argc;
2822 for (i = 0; i < type_argc; ++i)
2823 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2825 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2828 mono_loader_unlock ();
2833 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2835 MonoGenericContainer *container = container_class->generic_container;
2837 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2839 return inst == container->context.class_inst;
2843 * mono_metadata_lookup_generic_class:
2845 * Returns a MonoGenericClass with the given properties.
2849 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2851 MonoGenericClass *gclass;
2852 MonoGenericClass helper;
2853 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2857 helper.container_class = container_class;
2858 helper.context.class_inst = inst;
2859 helper.context.method_inst = NULL;
2860 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2861 helper.is_tb_open = is_tb_open;
2862 helper.cached_class = NULL;
2864 mono_loader_lock ();
2866 collect_data_init (&data);
2868 collect_gclass_images (&helper, &data);
2870 set = get_image_set (data.images, data.nimages);
2872 collect_data_free (&data);
2874 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
2876 /* A tripwire just to keep us honest */
2877 g_assert (!helper.cached_class);
2880 mono_loader_unlock ();
2885 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
2886 gclass = &dgclass->generic_class;
2887 gclass->is_dynamic = 1;
2889 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
2892 gclass->is_tb_open = is_tb_open;
2893 gclass->container_class = container_class;
2894 gclass->context.class_inst = inst;
2895 gclass->context.method_inst = NULL;
2896 gclass->owner = set;
2897 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2898 gclass->cached_class = container_class;
2900 g_hash_table_insert (set->gclass_cache, gclass, gclass);
2902 mono_loader_unlock ();
2908 * mono_metadata_inflate_generic_inst:
2910 * Instantiate the generic instance @ginst with the context @context.
2911 * Check @error for success.
2915 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
2917 MonoType **type_argv;
2918 MonoGenericInst *nginst = NULL;
2921 mono_error_init (error);
2923 if (!ginst->is_open)
2926 type_argv = g_new0 (MonoType*, ginst->type_argc);
2928 for (i = 0; i < ginst->type_argc; i++) {
2929 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
2930 if (!mono_error_ok (error))
2935 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2938 for (i = 0; i < count; i++)
2939 mono_metadata_free_type (type_argv [i]);
2946 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2947 int count, const char *ptr, const char **rptr)
2949 MonoType **type_argv;
2950 MonoGenericInst *ginst;
2953 type_argv = g_new0 (MonoType*, count);
2955 for (i = 0; i < count; i++) {
2956 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2967 ginst = mono_metadata_get_generic_inst (count, type_argv);
2975 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2976 const char *ptr, const char **rptr)
2978 MonoGenericInst *inst;
2983 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2987 gklass = mono_class_from_mono_type (gtype);
2988 if (!gklass->generic_container)
2991 count = mono_metadata_decode_value (ptr, &ptr);
2992 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
2999 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3005 * @gc: The generic container to normalize
3006 * @type: The kind of generic parameters the resulting generic-container should contain
3009 static MonoGenericContainer *
3010 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3012 gboolean is_var = (type == MONO_TYPE_VAR);
3016 g_assert (is_var || type == MONO_TYPE_MVAR);
3019 if (gc->is_method || gc->parent)
3021 * The current MonoGenericContainer is a generic method -> its `parent'
3022 * points to the containing class'es container.
3031 * mono_metadata_parse_generic_param:
3032 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3033 * see mono_metadata_parse_type_full() for details.
3034 * Internal routine to parse a generic type parameter.
3035 * LOCKING: Acquires the loader lock
3037 static MonoGenericParam *
3038 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3039 MonoTypeEnum type, const char *ptr, const char **rptr)
3041 int index = mono_metadata_decode_value (ptr, &ptr);
3045 generic_container = select_container (generic_container, type);
3046 if (!generic_container) {
3047 /* Create dummy MonoGenericParam */
3048 MonoGenericParam *param;
3050 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3057 if (index >= generic_container->type_argc)
3060 return mono_generic_container_get_param (generic_container, index);
3064 * mono_metadata_get_shared_type:
3066 * Return a shared instance of TYPE, if available, NULL otherwise.
3067 * Shared MonoType instances help save memory. Their contents should not be modified
3068 * by the caller. They do not need to be freed as their lifetime is bound by either
3069 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3070 * instance they are embedded in. If they are freed, they should be freed using
3071 * mono_metadata_free_type () instead of g_free ().
3074 mono_metadata_get_shared_type (MonoType *type)
3078 /* No need to use locking since nobody is modifying the hash table */
3079 if ((cached = g_hash_table_lookup (type_cache, type)))
3082 switch (type->type){
3083 case MONO_TYPE_CLASS:
3084 case MONO_TYPE_VALUETYPE:
3085 if (type == &type->data.klass->byval_arg)
3087 if (type == &type->data.klass->this_arg)
3096 compare_type_literals (int class_type, int type_type)
3098 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3099 * See mcs/test/gtest-440. and #650936.
3100 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3104 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3107 if (type_type == MONO_TYPE_CLASS && (class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT))
3109 return class_type == type_type;
3113 * do_mono_metadata_parse_type:
3114 * @type: MonoType to be filled in with the return value
3116 * @generic_context: generics_context
3117 * @transient: whenever to allocate data from the heap
3118 * @ptr: pointer to the encoded type
3119 * @rptr: pointer where the end of the encoded type is saved
3121 * Internal routine used to "fill" the contents of @type from an
3122 * allocated pointer. This is done this way to avoid doing too
3123 * many mini-allocations (particularly for the MonoFieldType which
3124 * most of the time is just a MonoType, but sometimes might be augmented).
3126 * This routine is used by mono_metadata_parse_type and
3127 * mono_metadata_parse_field_type
3129 * This extracts a Type as specified in Partition II (22.2.12)
3131 * Returns: FALSE if the type could not be loaded
3134 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3135 gboolean transient, const char *ptr, const char **rptr)
3138 type->type = mono_metadata_decode_value (ptr, &ptr);
3140 switch (type->type){
3141 case MONO_TYPE_VOID:
3142 case MONO_TYPE_BOOLEAN:
3143 case MONO_TYPE_CHAR:
3156 case MONO_TYPE_STRING:
3157 case MONO_TYPE_OBJECT:
3158 case MONO_TYPE_TYPEDBYREF:
3160 case MONO_TYPE_VALUETYPE:
3161 case MONO_TYPE_CLASS: {
3164 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3165 class = mono_class_get (m, token);
3166 type->data.klass = class;
3169 if (!compare_type_literals (class->byval_arg.type, type->type))
3173 case MONO_TYPE_SZARRAY: {
3174 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3177 type->data.klass = mono_class_from_mono_type (etype);
3178 if (!type->data.klass)
3183 type->data.type = mono_metadata_parse_type_internal (m, container, MONO_PARSE_MOD_TYPE, 0, transient, ptr, &ptr);
3184 if (!type->data.type)
3187 case MONO_TYPE_FNPTR:
3188 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
3189 if (!type->data.method)
3192 case MONO_TYPE_ARRAY:
3193 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr);
3194 if (!type->data.array)
3197 case MONO_TYPE_MVAR:
3198 if (container && !container->is_method)
3201 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
3202 if (!type->data.generic_param)
3205 case MONO_TYPE_GENERICINST:
3206 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3209 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3219 * mono_metadata_free_type:
3220 * @type: type to free
3222 * Free the memory allocated for type @type which is allocated on the heap.
3225 mono_metadata_free_type (MonoType *type)
3227 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3230 switch (type->type){
3231 case MONO_TYPE_OBJECT:
3232 case MONO_TYPE_STRING:
3233 if (!type->data.klass)
3236 case MONO_TYPE_CLASS:
3237 case MONO_TYPE_VALUETYPE:
3238 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3242 mono_metadata_free_type (type->data.type);
3244 case MONO_TYPE_FNPTR:
3245 mono_metadata_free_method_signature (type->data.method);
3247 case MONO_TYPE_ARRAY:
3248 mono_metadata_free_array (type->data.array);
3257 hex_dump (const char *buffer, int base, int count)
3259 int show_header = 1;
3267 for (i = 0; i < count; i++){
3270 printf ("\n0x%08x: ", (unsigned char) base + i);
3272 printf ("%02x ", (unsigned char) (buffer [i]));
3279 * @ptr: Points to the beginning of the Section Data (25.3)
3281 static MonoExceptionClause*
3282 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3284 unsigned char sect_data_flags;
3285 const unsigned char *sptr;
3287 guint32 sect_data_len;
3288 MonoExceptionClause* clauses = NULL;
3291 /* align on 32-bit boundary */
3292 sptr = ptr = dword_align (ptr);
3293 sect_data_flags = *ptr;
3296 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3298 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3301 sect_data_len = ptr [0];
3305 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
3306 hex_dump (sptr, 0, sect_data_len+8);
3307 g_print ("\nheader: ");
3308 hex_dump (sptr-4, 0, 4);
3312 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3313 const unsigned char *p = dword_align (ptr);
3315 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3316 /* we could just store a pointer if we don't need to byteswap */
3317 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3318 for (i = 0; i < *num_clauses; ++i) {
3319 MonoExceptionClause *ec = &clauses [i];
3322 ec->flags = read32 (p);
3323 ec->try_offset = read32 (p + 4);
3324 ec->try_len = read32 (p + 8);
3325 ec->handler_offset = read32 (p + 12);
3326 ec->handler_len = read32 (p + 16);
3327 tof_value = read32 (p + 20);
3330 ec->flags = read16 (p);
3331 ec->try_offset = read16 (p + 2);
3332 ec->try_len = *(p + 4);
3333 ec->handler_offset = read16 (p + 5);
3334 ec->handler_len = *(p + 7);
3335 tof_value = read32 (p + 8);
3338 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3339 ec->data.filter_offset = tof_value;
3340 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3341 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
3343 ec->data.catch_class = NULL;
3345 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3349 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3350 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3357 * mono_method_get_header_summary:
3358 * @method: The method to get the header.
3359 * @summary: Where to store the header
3362 * Returns: true if the header was properly decoded.
3365 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3371 unsigned char flags, format;
3374 /*Only the GMD has a pointer to the metadata.*/
3375 while (method->is_inflated)
3376 method = ((MonoMethodInflated*)method)->declaring;
3378 summary->code_size = 0;
3379 summary->has_clauses = FALSE;
3381 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3382 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))
3385 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3386 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3389 summary->code_size = header->code_size;
3390 summary->has_clauses = header->num_clauses > 0;
3395 idx = mono_metadata_token_index (method->token);
3396 img = method->klass->image;
3397 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3399 /*We must run the verifier since we'll be decoding it.*/
3400 if (!mono_verifier_verify_method_header (img, rva, NULL))
3403 ptr = mono_image_rva_map (img, rva);
3406 flags = *(const unsigned char *)ptr;
3407 format = flags & METHOD_HEADER_FORMAT_MASK;
3410 case METHOD_HEADER_TINY_FORMAT:
3412 summary->code_size = flags >> 2;
3414 case METHOD_HEADER_FAT_FORMAT:
3415 fat_flags = read16 (ptr);
3417 summary->code_size = read32 (ptr);
3418 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3419 summary->has_clauses = TRUE;
3428 * mono_metadata_parse_mh_full:
3429 * @m: metadata context
3430 * @generic_context: generics context
3431 * @ptr: pointer to the method header.
3433 * Decode the method header at @ptr, including pointer to the IL code,
3434 * info about local variables and optional exception tables.
3435 * This is a Mono runtime internal function.
3437 * LOCKING: Acquires the loader lock.
3439 * Returns: a transient MonoMethodHeader allocated from the heap.
3442 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3444 MonoMethodHeader *mh;
3445 unsigned char flags = *(const unsigned char *) ptr;
3446 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3448 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3449 const unsigned char *code;
3450 MonoExceptionClause* clauses = NULL;
3451 int hsize, num_clauses = 0;
3452 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3453 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3455 g_return_val_if_fail (ptr != NULL, NULL);
3458 case METHOD_HEADER_TINY_FORMAT:
3459 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3462 mh->is_transient = TRUE;
3463 local_var_sig_tok = 0;
3464 mh->code_size = flags >> 2;
3465 mh->code = (unsigned char*)ptr;
3467 case METHOD_HEADER_FAT_FORMAT:
3468 fat_flags = read16 (ptr);
3470 hsize = (fat_flags >> 12) & 0xf;
3471 max_stack = read16 (ptr);
3473 code_size = read32 (ptr);
3475 local_var_sig_tok = read32 (ptr);
3478 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3483 code = (unsigned char*)ptr;
3485 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3489 * There are more sections
3491 ptr = (char*)code + code_size;
3497 if (local_var_sig_tok) {
3498 int idx = (local_var_sig_tok & 0xffffff)-1;
3499 if (idx >= t->rows || idx < 0)
3501 mono_metadata_decode_row (t, idx, cols, 1);
3503 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3506 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3507 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3508 if (local_var_sig_tok) {
3509 const char *locals_ptr;
3510 int len=0, i, bsize;
3512 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3513 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3514 if (*locals_ptr != 0x07)
3515 g_warning ("wrong signature for locals blob");
3517 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3518 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3519 mh->num_locals = len;
3520 for (i = 0; i < len; ++i) {
3521 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3522 MONO_PARSE_LOCAL, 0, TRUE, locals_ptr, &locals_ptr);
3523 if (!mh->locals [i]) {
3530 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3533 mh->code_size = code_size;
3534 mh->max_stack = max_stack;
3535 mh->is_transient = TRUE;
3536 mh->init_locals = init_locals;
3538 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3539 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3541 mh->clauses = clausesp;
3542 mh->num_clauses = num_clauses;
3548 * mono_metadata_parse_mh:
3549 * @generic_context: generics context
3550 * @ptr: pointer to the method header.
3552 * Decode the method header at @ptr, including pointer to the IL code,
3553 * info about local variables and optional exception tables.
3554 * This is a Mono runtime internal function.
3556 * Returns: a MonoMethodHeader.
3559 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3561 MonoMethodHeader *res;
3563 mono_loader_lock ();
3565 res = mono_metadata_parse_mh_full (m, NULL, ptr);
3567 mono_loader_unlock ();
3573 * mono_metadata_free_mh:
3574 * @mh: a method header
3576 * Free the memory allocated for the method header.
3579 mono_metadata_free_mh (MonoMethodHeader *mh)
3583 /* If it is not transient it means it's part of a wrapper method,
3584 * or a SRE-generated method, so the lifetime in that case is
3585 * dictated by the method's own lifetime
3587 if (mh->is_transient) {
3588 for (i = 0; i < mh->num_locals; ++i)
3589 mono_metadata_free_type (mh->locals [i]);
3595 * mono_method_header_get_code:
3596 * @header: a MonoMethodHeader pointer
3597 * @code_size: memory location for returning the code size
3598 * @max_stack: memory location for returning the max stack
3600 * Method header accessor to retreive info about the IL code properties:
3601 * a pointer to the IL code itself, the size of the code and the max number
3602 * of stack slots used by the code.
3604 * Returns: pointer to the IL code represented by the method header.
3606 const unsigned char*
3607 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3610 *code_size = header->code_size;
3612 *max_stack = header->max_stack;
3613 return header->code;
3617 * mono_method_header_get_locals:
3618 * @header: a MonoMethodHeader pointer
3619 * @num_locals: memory location for returning the number of local variables
3620 * @init_locals: memory location for returning the init_locals flag
3622 * Method header accessor to retreive info about the local variables:
3623 * an array of local types, the number of locals and whether the locals
3624 * are supposed to be initialized to 0 on method entry
3626 * Returns: pointer to an array of types of the local variables
3629 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3632 *num_locals = header->num_locals;
3634 *init_locals = header->init_locals;
3635 return header->locals;
3639 * mono_method_header_get_num_clauses:
3640 * @header: a MonoMethodHeader pointer
3642 * Method header accessor to retreive the number of exception clauses.
3644 * Returns: the number of exception clauses present
3647 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3649 return header->num_clauses;
3653 * mono_method_header_get_clauses:
3654 * @header: a MonoMethodHeader pointer
3655 * @method: MonoMethod the header belongs to
3656 * @iter: pointer to a iterator
3657 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3659 * Get the info about the exception clauses in the method. Set *iter to NULL to
3660 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3661 * At each iteration, the structure pointed to by clause if filled with the
3662 * exception clause information.
3664 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3668 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3670 MonoExceptionClause *sc;
3671 /* later we'll be able to use this interface to parse the clause info on demand,
3672 * without allocating anything.
3674 if (!iter || !header->num_clauses)
3677 *iter = sc = header->clauses;
3683 if (sc < header->clauses + header->num_clauses) {
3692 * mono_metadata_parse_field_type:
3693 * @m: metadata context to extract information from
3694 * @ptr: pointer to the field signature
3695 * @rptr: pointer updated to match the end of the decoded stream
3697 * Parses the field signature, and returns the type information for it.
3699 * Returns: The MonoType that was extracted from @ptr.
3702 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3704 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3708 * mono_metadata_parse_param:
3709 * @m: metadata context to extract information from
3710 * @ptr: pointer to the param signature
3711 * @rptr: pointer updated to match the end of the decoded stream
3713 * Parses the param signature, and returns the type information for it.
3715 * Returns: The MonoType that was extracted from @ptr.
3718 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3720 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3724 * mono_metadata_token_from_dor:
3725 * @dor_token: A TypeDefOrRef coded index
3727 * dor_token is a TypeDefOrRef coded index: it contains either
3728 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3729 * bits contain an index into the table.
3731 * Returns: an expanded token
3734 mono_metadata_token_from_dor (guint32 dor_index)
3738 table = dor_index & 0x03;
3739 idx = dor_index >> 2;
3742 case 0: /* TypeDef */
3743 return MONO_TOKEN_TYPE_DEF | idx;
3744 case 1: /* TypeRef */
3745 return MONO_TOKEN_TYPE_REF | idx;
3746 case 2: /* TypeSpec */
3747 return MONO_TOKEN_TYPE_SPEC | idx;
3749 g_assert_not_reached ();
3756 * We use this to pass context information to the row locator
3759 int idx; /* The index that we are trying to locate */
3760 int col_idx; /* The index in the row where idx may be stored */
3761 MonoTableInfo *t; /* pointer to the table */
3766 * How the row locator works.
3771 * ___|___------> _______
3774 * A column in the rows of table A references an index in table B.
3775 * For example A may be the TYPEDEF table and B the METHODDEF table.
3777 * Given an index in table B we want to get the row in table A
3778 * where the column n references our index in B.
3780 * In the locator_t structure:
3782 * col_idx is the column number
3783 * index is the index in table B
3784 * result will be the index in table A
3787 * Table A Table B column (in table A)
3788 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3789 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3790 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3791 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3792 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3794 * Note that we still don't support encoded indexes.
3798 typedef_locator (const void *a, const void *b)
3800 locator_t *loc = (locator_t *) a;
3801 const char *bb = (const char *) b;
3802 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3803 guint32 col, col_next;
3805 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3811 * Need to check that the next row is valid.
3813 if (typedef_index + 1 < loc->t->rows) {
3814 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3815 if (loc->idx >= col_next)
3818 if (col == col_next)
3822 loc->result = typedef_index;
3828 table_locator (const void *a, const void *b)
3830 locator_t *loc = (locator_t *) a;
3831 const char *bb = (const char *) b;
3832 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3835 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3837 if (loc->idx == col) {
3838 loc->result = table_index;
3848 declsec_locator (const void *a, const void *b)
3850 locator_t *loc = (locator_t *) a;
3851 const char *bb = (const char *) b;
3852 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3855 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3857 if (loc->idx == col) {
3858 loc->result = table_index;
3870 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3871 * which contains IDX.
3874 search_ptr_table (MonoImage *image, int table, int idx)
3876 MonoTableInfo *ptrdef = &image->tables [table];
3879 /* Use a linear search to find our index in the table */
3880 for (i = 0; i < ptrdef->rows; i ++)
3881 /* All the Ptr tables have the same structure */
3882 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3885 if (i < ptrdef->rows)
3892 * mono_metadata_typedef_from_field:
3893 * @meta: metadata context
3894 * @index: FieldDef token
3896 * Returns: the 1-based index into the TypeDef table of the type that
3897 * declared the field described by @index, or 0 if not found.
3900 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3902 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3908 loc.idx = mono_metadata_token_index (index);
3909 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3912 if (meta->uncompressed_metadata)
3913 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3915 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3918 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3919 return loc.result + 1;
3923 * mono_metadata_typedef_from_method:
3924 * @meta: metadata context
3925 * @index: MethodDef token
3927 * Returns: the 1-based index into the TypeDef table of the type that
3928 * declared the method described by @index. 0 if not found.
3931 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3933 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3939 loc.idx = mono_metadata_token_index (index);
3940 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3943 if (meta->uncompressed_metadata)
3944 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3946 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3949 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3950 return loc.result + 1;
3954 * mono_metadata_interfaces_from_typedef_full:
3955 * @meta: metadata context
3956 * @index: typedef token
3957 * @interfaces: Out parameter used to store the interface array
3958 * @count: Out parameter used to store the number of interfaces
3959 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
3960 * @context: The generic context
3962 * The array of interfaces that the @index typedef token implements is returned in
3963 * @interfaces. The number of elements in the array is returned in @count.
3965 * LOCKING: Assumes the loader lock is held.
3967 * Returns: TRUE on success, FALSE on failure.
3970 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context)
3972 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3975 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3984 loc.idx = mono_metadata_token_index (index);
3985 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3988 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3993 * We may end up in the middle of the rows...
3996 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4002 while (pos < tdef->rows) {
4003 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4004 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4009 if (heap_alloc_result)
4010 result = g_new0 (MonoClass*, pos - start);
4012 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4015 while (pos < tdef->rows) {
4018 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4019 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4021 iface = mono_class_get_full (
4022 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
4025 result [pos - start] = iface;
4028 *count = pos - start;
4029 *interfaces = result;
4034 * @meta: metadata context
4035 * @index: typedef token
4036 * @count: Out parameter used to store the number of interfaces
4038 * The array of interfaces that the @index typedef token implements is returned in
4039 * @interfaces. The number of elements in the array is returned in @count. The returned
4040 * array is g_malloc'd and the caller must free it.
4042 * LOCKING: Acquires the loader lock .
4044 * Returns: the interface array on success, NULL on failure.
4048 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4050 MonoClass **interfaces;
4053 mono_loader_lock ();
4054 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL);
4055 mono_loader_unlock ();
4063 * mono_metadata_nested_in_typedef:
4064 * @meta: metadata context
4065 * @index: typedef token
4067 * Returns: the 1-based index into the TypeDef table of the type
4068 * where the type described by @index is nested.
4069 * Retruns 0 if @index describes a non-nested type.
4072 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4074 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4080 loc.idx = mono_metadata_token_index (index);
4081 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4084 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4087 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4088 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4092 * mono_metadata_nesting_typedef:
4093 * @meta: metadata context
4094 * @index: typedef token
4096 * Returns: the 1-based index into the TypeDef table of the first type
4097 * that is nested inside the type described by @index. The search starts at
4098 * @start_index. returns 0 if no such type is found.
4101 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4103 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4105 guint32 class_index = mono_metadata_token_index (index);
4110 start = start_index;
4112 while (start <= tdef->rows) {
4113 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4119 if (start > tdef->rows)
4126 * mono_metadata_packing_from_typedef:
4127 * @meta: metadata context
4128 * @index: token representing a type
4130 * Returns: the info stored in the ClassLAyout table for the given typedef token
4131 * into the @packing and @size pointers.
4132 * Returns 0 if the info is not found.
4135 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4137 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4139 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4144 loc.idx = mono_metadata_token_index (index);
4145 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4148 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4151 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4153 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4155 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4157 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4158 return loc.result + 1;
4162 * mono_metadata_custom_attrs_from_index:
4163 * @meta: metadata context
4164 * @index: token representing the parent
4166 * Returns: the 1-based index into the CustomAttribute table of the first
4167 * attribute which belongs to the metadata object described by @index.
4168 * Returns 0 if no such attribute is found.
4171 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4173 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4180 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4183 /* FIXME: Index translation */
4185 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4188 /* Find the first entry by searching backwards */
4189 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4192 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4193 return loc.result + 1;
4197 * mono_metadata_declsec_from_index:
4198 * @meta: metadata context
4199 * @index: token representing the parent
4201 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4202 * attribute which belongs to the metadata object described by @index.
4203 * Returns -1 if no such attribute is found.
4206 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4208 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4215 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4218 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4221 /* Find the first entry by searching backwards */
4222 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4230 mono_backtrace (int limit)
4235 backtrace (array, limit);
4236 names = backtrace_symbols (array, limit);
4237 for (i =0; i < limit; ++i) {
4238 g_print ("\t%s\n", names [i]);
4244 #define abi__alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
4248 * @t: the type to return the size of
4250 * Returns: the number of bytes required to hold an instance of this
4254 mono_type_size (MonoType *t, int *align)
4261 *align = abi__alignof__(gpointer);
4262 return sizeof (gpointer);
4266 case MONO_TYPE_VOID:
4269 case MONO_TYPE_BOOLEAN:
4270 *align = abi__alignof__(gint8);
4274 *align = abi__alignof__(gint8);
4276 case MONO_TYPE_CHAR:
4279 *align = abi__alignof__(gint16);
4283 *align = abi__alignof__(gint32);
4286 *align = abi__alignof__(float);
4290 *align = abi__alignof__(gint64);
4293 *align = abi__alignof__(double);
4297 *align = abi__alignof__(gpointer);
4298 return sizeof (gpointer);
4299 case MONO_TYPE_STRING:
4300 *align = abi__alignof__(gpointer);
4301 return sizeof (gpointer);
4302 case MONO_TYPE_OBJECT:
4303 *align = abi__alignof__(gpointer);
4304 return sizeof (gpointer);
4305 case MONO_TYPE_VALUETYPE: {
4306 if (t->data.klass->enumtype)
4307 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4309 return mono_class_value_size (t->data.klass, (guint32*)align);
4311 case MONO_TYPE_CLASS:
4312 case MONO_TYPE_SZARRAY:
4314 case MONO_TYPE_FNPTR:
4315 case MONO_TYPE_ARRAY:
4316 *align = abi__alignof__(gpointer);
4317 return sizeof (gpointer);
4318 case MONO_TYPE_TYPEDBYREF:
4319 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4320 case MONO_TYPE_GENERICINST: {
4321 MonoGenericClass *gclass = t->data.generic_class;
4322 MonoClass *container_class = gclass->container_class;
4324 // g_assert (!gclass->inst->is_open);
4326 if (container_class->valuetype) {
4327 if (container_class->enumtype)
4328 return mono_type_size (mono_class_enum_basetype (container_class), align);
4330 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4332 *align = abi__alignof__(gpointer);
4333 return sizeof (gpointer);
4337 case MONO_TYPE_MVAR:
4338 /* FIXME: Martin, this is wrong. */
4339 *align = abi__alignof__(gpointer);
4340 return sizeof (gpointer);
4342 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4348 * mono_type_stack_size:
4349 * @t: the type to return the size it uses on the stack
4351 * Returns: the number of bytes required to hold an instance of this
4352 * type on the runtime stack
4355 mono_type_stack_size (MonoType *t, int *align)
4357 return mono_type_stack_size_internal (t, align, FALSE);
4361 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4364 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4365 int stack_slot_size = sizeof (gpointer);
4366 int stack_slot_align = abi__alignof__ (gpointer);
4367 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4368 int stack_slot_size = SIZEOF_REGISTER;
4369 int stack_slot_align = SIZEOF_REGISTER;
4372 g_assert (t != NULL);
4378 *align = stack_slot_align;
4379 return stack_slot_size;
4383 case MONO_TYPE_BOOLEAN:
4384 case MONO_TYPE_CHAR:
4393 case MONO_TYPE_STRING:
4394 case MONO_TYPE_OBJECT:
4395 case MONO_TYPE_CLASS:
4396 case MONO_TYPE_SZARRAY:
4398 case MONO_TYPE_FNPTR:
4399 case MONO_TYPE_ARRAY:
4400 *align = stack_slot_align;
4401 return stack_slot_size;
4403 case MONO_TYPE_MVAR:
4404 g_assert (allow_open);
4405 *align = stack_slot_align;
4406 return stack_slot_size;
4407 case MONO_TYPE_TYPEDBYREF:
4408 *align = stack_slot_align;
4409 return stack_slot_size * 3;
4411 *align = abi__alignof__(float);
4412 return sizeof (float);
4415 *align = abi__alignof__(gint64);
4416 return sizeof (gint64);
4418 *align = abi__alignof__(double);
4419 return sizeof (double);
4420 case MONO_TYPE_VALUETYPE: {
4423 if (t->data.klass->enumtype)
4424 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4426 size = mono_class_value_size (t->data.klass, (guint32*)align);
4428 *align = *align + stack_slot_align - 1;
4429 *align &= ~(stack_slot_align - 1);
4431 size += stack_slot_size - 1;
4432 size &= ~(stack_slot_size - 1);
4437 case MONO_TYPE_GENERICINST: {
4438 MonoGenericClass *gclass = t->data.generic_class;
4439 MonoClass *container_class = gclass->container_class;
4442 g_assert (!gclass->context.class_inst->is_open);
4444 if (container_class->valuetype) {
4445 if (container_class->enumtype)
4446 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4448 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4450 *align = *align + stack_slot_align - 1;
4451 *align &= ~(stack_slot_align - 1);
4453 size += stack_slot_size - 1;
4454 size &= ~(stack_slot_size - 1);
4459 *align = stack_slot_align;
4460 return stack_slot_size;
4464 g_error ("type 0x%02x unknown", t->type);
4470 mono_type_generic_inst_is_valuetype (MonoType *type)
4472 g_assert (type->type == MONO_TYPE_GENERICINST);
4473 return type->data.generic_class->container_class->valuetype;
4477 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4479 return gclass->container_class->valuetype;
4483 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4485 MonoGenericInst *i1 = g1->context.class_inst;
4486 MonoGenericInst *i2 = g2->context.class_inst;
4488 if (g1->is_dynamic != g2->is_dynamic)
4490 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4492 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4494 return g1->is_tb_open == g2->is_tb_open;
4498 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4500 MonoGenericInst *i1 = g1->context.class_inst;
4501 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4503 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4505 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4507 return !g1->is_tb_open;
4511 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4513 /* FIXME: check if this seed is good enough */
4514 guint hash = 0xc01dfee7;
4515 if (context->class_inst)
4516 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4517 if (context->method_inst)
4518 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4523 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4525 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4529 * mono_metadata_str_hash:
4531 * This should be used instead of g_str_hash for computing hash codes visible
4532 * outside this module, since g_str_hash () is not guaranteed to be stable
4533 * (its not the same in eglib for example).
4536 mono_metadata_str_hash (gconstpointer v1)
4538 /* Same as g_str_hash () in glib */
4539 char *p = (char *) v1;
4544 hash = (hash << 5) - hash + *p;
4551 * mono_metadata_type_hash:
4554 * Computes an hash value for @t1 to be used in GHashTable.
4555 * The returned hash is guaranteed to be the same across executions.
4558 mono_metadata_type_hash (MonoType *t1)
4560 guint hash = t1->type;
4562 hash |= t1->byref << 6; /* do not collide with t1->type values */
4564 case MONO_TYPE_VALUETYPE:
4565 case MONO_TYPE_CLASS:
4566 case MONO_TYPE_SZARRAY: {
4567 MonoClass *class = t1->data.klass;
4569 * Dynamic classes must not be hashed on their type since it can change
4570 * during runtime. For example, if we hash a reference type that is
4571 * later made into a valuetype.
4573 * This is specially problematic with generic instances since they are
4574 * inserted in a bunch of hash tables before been finished.
4576 if (class->image->dynamic)
4577 return (t1->byref << 6) | mono_metadata_str_hash (class->name);
4578 return ((hash << 5) - hash) ^ mono_metadata_str_hash (class->name);
4581 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4582 case MONO_TYPE_ARRAY:
4583 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4584 case MONO_TYPE_GENERICINST:
4585 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4591 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4595 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4597 if (p1->serial != p2->serial)
4601 * We have to compare the image as well because if we didn't,
4602 * the generic_inst_cache lookup wouldn't care about the image
4603 * of generic params, so what could happen is that a generic
4604 * inst with params from image A is put into the cache, then
4605 * image B gets that generic inst from the cache, image A is
4606 * unloaded, so the inst is deleted, but image B still retains
4609 * The AOT runtime doesn't set the image when it's decoding
4610 * types, so we only compare it when the owner is NULL.
4612 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4613 (mono_generic_param_owner (p1) || p1->image == p2->image))
4617 * If `signature_only' is true, we're comparing two (method) signatures.
4618 * In this case, the owner of two type parameters doesn't need to match.
4621 return signature_only;
4625 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4629 if (c1->generic_class && c2->generic_class)
4630 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4631 if (c1->generic_class && c2->generic_container)
4632 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4633 if (c1->generic_container && c2->generic_class)
4634 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4635 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4636 return mono_metadata_generic_param_equal (
4637 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4638 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4639 return mono_metadata_generic_param_equal (
4640 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4641 if (signature_only &&
4642 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4643 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4648 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4650 gpointer iter1 = 0, iter2 = 0;
4654 if (s1->call_convention != s2->call_convention)
4656 if (s1->sentinelpos != s2->sentinelpos)
4658 if (s1->hasthis != s2->hasthis)
4660 if (s1->explicit_this != s2->explicit_this)
4662 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4664 if (s1->param_count != s2->param_count)
4668 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4669 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4671 if (t1 == NULL || t2 == NULL)
4673 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4679 * mono_metadata_type_equal:
4683 * Determine if @t1 and @t2 represent the same type.
4684 * Returns: #TRUE if @t1 and @t2 are equal.
4687 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4689 if (t1->type != t2->type || t1->byref != t2->byref)
4693 case MONO_TYPE_VOID:
4694 case MONO_TYPE_BOOLEAN:
4695 case MONO_TYPE_CHAR:
4706 case MONO_TYPE_STRING:
4709 case MONO_TYPE_OBJECT:
4710 case MONO_TYPE_TYPEDBYREF:
4712 case MONO_TYPE_VALUETYPE:
4713 case MONO_TYPE_CLASS:
4714 case MONO_TYPE_SZARRAY:
4715 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4717 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4718 case MONO_TYPE_ARRAY:
4719 if (t1->data.array->rank != t2->data.array->rank)
4721 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4722 case MONO_TYPE_GENERICINST:
4723 return _mono_metadata_generic_class_equal (
4724 t1->data.generic_class, t2->data.generic_class, signature_only);
4726 return mono_metadata_generic_param_equal (
4727 t1->data.generic_param, t2->data.generic_param, signature_only);
4728 case MONO_TYPE_MVAR:
4729 return mono_metadata_generic_param_equal (
4730 t1->data.generic_param, t2->data.generic_param, signature_only);
4731 case MONO_TYPE_FNPTR:
4732 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4734 g_error ("implement type compare for %0x!", t1->type);
4742 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
4744 return do_mono_metadata_type_equal (t1, t2, FALSE);
4748 * mono_metadata_type_equal_full:
4751 * @signature_only: if signature only comparison should be made
4753 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
4754 * behaves the same way as mono_metadata_type_equal.
4755 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
4756 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
4759 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
4761 return do_mono_metadata_type_equal (t1, t2, signature_only);
4765 * mono_metadata_signature_equal:
4766 * @sig1: a signature
4767 * @sig2: another signature
4769 * Determine if @sig1 and @sig2 represent the same signature, with the
4770 * same number of arguments and the same types.
4771 * Returns: #TRUE if @sig1 and @sig2 are equal.
4774 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4778 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4781 if (sig1->generic_param_count != sig2->generic_param_count)
4785 * We're just comparing the signatures of two methods here:
4787 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4788 * U and V are equal here.
4790 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4793 for (i = 0; i < sig1->param_count; i++) {
4794 MonoType *p1 = sig1->params[i];
4795 MonoType *p2 = sig2->params[i];
4797 /* if (p1->attrs != p2->attrs)
4800 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4804 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4810 * mono_metadata_type_dup:
4811 * @image: image to alloc memory from
4812 * @original: type to duplicate
4814 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
4817 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
4820 int sizeof_o = MONO_SIZEOF_TYPE;
4822 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
4824 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
4826 memcpy (r, o, sizeof_o);
4828 if (o->type == MONO_TYPE_PTR) {
4829 r->data.type = mono_metadata_type_dup (image, o->data.type);
4830 } else if (o->type == MONO_TYPE_ARRAY) {
4831 r->data.array = mono_dup_array_type (image, o->data.array);
4832 } else if (o->type == MONO_TYPE_FNPTR) {
4833 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
4834 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
4840 mono_signature_hash (MonoMethodSignature *sig)
4842 guint i, res = sig->ret->type;
4844 for (i = 0; i < sig->param_count; i++)
4845 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4851 * mono_metadata_encode_value:
4852 * @value: value to encode
4853 * @buf: buffer where to write the compressed representation
4854 * @endbuf: pointer updated to point at the end of the encoded output
4856 * Encodes the value @value in the compressed representation used
4857 * in metadata and stores the result in @buf. @buf needs to be big
4858 * enough to hold the data (4 bytes).
4861 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4867 else if (value < 0x4000) {
4868 p [0] = 0x80 | (value >> 8);
4869 p [1] = value & 0xff;
4872 p [0] = (value >> 24) | 0xc0;
4873 p [1] = (value >> 16) & 0xff;
4874 p [2] = (value >> 8) & 0xff;
4875 p [3] = value & 0xff;
4883 * mono_metadata_field_info:
4884 * @meta: the Image the field is defined in
4885 * @index: the index in the field table representing the field
4886 * @offset: a pointer to an integer where to store the offset that
4887 * may have been specified for the field in a FieldLayout table
4888 * @rva: a pointer to the RVA of the field data in the image that
4889 * may have been defined in a FieldRVA table
4890 * @marshal_spec: a pointer to the marshal spec that may have been
4891 * defined for the field in a FieldMarshal table.
4893 * Gather info for field @index that may have been defined in the FieldLayout,
4894 * FieldRVA and FieldMarshal tables.
4895 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4899 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4900 MonoMarshalSpec **marshal_spec)
4902 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
4906 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4907 MonoMarshalSpec **marshal_spec)
4909 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
4913 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4914 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
4916 MonoTableInfo *tdef;
4919 loc.idx = index + 1;
4920 if (meta->uncompressed_metadata)
4921 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4924 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4926 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4929 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4930 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4932 *offset = (guint32)-1;
4936 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4938 loc.col_idx = MONO_FIELD_RVA_FIELD;
4941 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4943 * LAMESPEC: There is no signature, no nothing, just the raw data.
4945 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4953 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4954 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, p);
4961 * mono_metadata_get_constant_index:
4962 * @meta: the Image the field is defined in
4963 * @index: the token that may have a row defined in the constants table
4964 * @hint: possible position for the row
4966 * @token must be a FieldDef, ParamDef or PropertyDef token.
4968 * Returns: the index into the Constants table or 0 if not found.
4971 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4973 MonoTableInfo *tdef;
4975 guint32 index = mono_metadata_token_index (token);
4977 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4978 index <<= MONO_HASCONSTANT_BITS;
4979 switch (mono_metadata_token_table (token)) {
4980 case MONO_TABLE_FIELD:
4981 index |= MONO_HASCONSTANT_FIEDDEF;
4983 case MONO_TABLE_PARAM:
4984 index |= MONO_HASCONSTANT_PARAM;
4986 case MONO_TABLE_PROPERTY:
4987 index |= MONO_HASCONSTANT_PROPERTY;
4990 g_warning ("Not a valid token for the constant table: 0x%08x", token);
4994 loc.col_idx = MONO_CONSTANT_PARENT;
4997 /* FIXME: Index translation */
4999 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5002 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5003 return loc.result + 1;
5009 * mono_metadata_events_from_typedef:
5010 * @meta: metadata context
5011 * @index: 0-based index (in the TypeDef table) describing a type
5013 * Returns: the 0-based index in the Event table for the events in the
5014 * type. The last event that belongs to the type (plus 1) is stored
5015 * in the @end_idx pointer.
5018 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5022 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5030 loc.col_idx = MONO_EVENT_MAP_PARENT;
5031 loc.idx = index + 1;
5033 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5036 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5037 if (loc.result + 1 < tdef->rows) {
5038 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5040 end = meta->tables [MONO_TABLE_EVENT].rows;
5048 * mono_metadata_methods_from_event:
5049 * @meta: metadata context
5050 * @index: 0-based index (in the Event table) describing a event
5052 * Returns: the 0-based index in the MethodDef table for the methods in the
5053 * event. The last method that belongs to the event (plus 1) is stored
5054 * in the @end_idx pointer.
5057 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5061 guint32 cols [MONO_METHOD_SEMA_SIZE];
5062 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5068 if (meta->uncompressed_metadata)
5069 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5072 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5073 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5075 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5080 * We may end up in the middle of the rows...
5083 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5089 while (end < msemt->rows) {
5090 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5091 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5100 * mono_metadata_properties_from_typedef:
5101 * @meta: metadata context
5102 * @index: 0-based index (in the TypeDef table) describing a type
5104 * Returns: the 0-based index in the Property table for the properties in the
5105 * type. The last property that belongs to the type (plus 1) is stored
5106 * in the @end_idx pointer.
5109 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5113 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5121 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5122 loc.idx = index + 1;
5124 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5127 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5128 if (loc.result + 1 < tdef->rows) {
5129 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5131 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5139 * mono_metadata_methods_from_property:
5140 * @meta: metadata context
5141 * @index: 0-based index (in the PropertyDef table) describing a property
5143 * Returns: the 0-based index in the MethodDef table for the methods in the
5144 * property. The last method that belongs to the property (plus 1) is stored
5145 * in the @end_idx pointer.
5148 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5152 guint32 cols [MONO_METHOD_SEMA_SIZE];
5153 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5159 if (meta->uncompressed_metadata)
5160 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5163 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5164 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5166 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5171 * We may end up in the middle of the rows...
5174 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5180 while (end < msemt->rows) {
5181 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5182 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5191 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5194 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5199 /* No index translation seems to be needed */
5202 loc.col_idx = MONO_IMPLMAP_MEMBER;
5203 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5205 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5208 return loc.result + 1;
5212 * @image: context where the image is created
5213 * @type_spec: typespec token
5215 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5219 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5221 guint32 idx = mono_metadata_token_index (type_spec);
5223 guint32 cols [MONO_TYPESPEC_SIZE];
5226 MonoType *type, *type2;
5228 mono_loader_lock ();
5230 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5232 mono_loader_unlock ();
5236 t = &image->tables [MONO_TABLE_TYPESPEC];
5238 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5239 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5241 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5242 mono_loader_unlock ();
5246 len = mono_metadata_decode_value (ptr, &ptr);
5248 type = mono_metadata_parse_type_internal (image, NULL, MONO_PARSE_TYPE, 0, TRUE, ptr, &ptr);
5250 mono_loader_unlock ();
5254 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5257 mono_loader_unlock ();
5261 type2 = mono_metadata_type_dup (image, type);
5262 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5263 mono_metadata_free_type (type);
5265 mono_loader_unlock ();
5272 mono_image_strndup (MonoImage *image, const char *data, guint len)
5276 return g_strndup (data, len);
5277 res = mono_image_alloc (image, len + 1);
5278 memcpy (res, data, len);
5284 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5286 return mono_metadata_parse_marshal_spec_full (NULL, ptr);
5290 mono_metadata_parse_marshal_spec_full (MonoImage *image, const char *ptr)
5292 MonoMarshalSpec *res;
5294 const char *start = ptr;
5296 /* fixme: this is incomplete, but I cant find more infos in the specs */
5299 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5301 res = g_new0 (MonoMarshalSpec, 1);
5303 len = mono_metadata_decode_value (ptr, &ptr);
5304 res->native = *ptr++;
5306 if (res->native == MONO_NATIVE_LPARRAY) {
5307 res->data.array_data.param_num = -1;
5308 res->data.array_data.num_elem = -1;
5309 res->data.array_data.elem_mult = -1;
5311 if (ptr - start <= len)
5312 res->data.array_data.elem_type = *ptr++;
5313 if (ptr - start <= len)
5314 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5315 if (ptr - start <= len)
5316 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5317 if (ptr - start <= len) {
5319 * LAMESPEC: Older spec versions say this parameter comes before
5320 * num_elem. Never spec versions don't talk about elem_mult at
5321 * all, but csc still emits it, and it is used to distinguish
5322 * between param_num being 0, and param_num being omitted.
5323 * So if (param_num == 0) && (num_elem > 0), then
5324 * elem_mult == 0 -> the array size is num_elem
5325 * elem_mult == 1 -> the array size is @param_num + num_elem
5327 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5331 if (res->native == MONO_NATIVE_BYVALTSTR) {
5332 if (ptr - start <= len)
5333 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5336 if (res->native == MONO_NATIVE_BYVALARRAY) {
5337 if (ptr - start <= len)
5338 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5341 if (res->native == MONO_NATIVE_CUSTOM) {
5342 /* skip unused type guid */
5343 len = mono_metadata_decode_value (ptr, &ptr);
5345 /* skip unused native type name */
5346 len = mono_metadata_decode_value (ptr, &ptr);
5348 /* read custom marshaler type name */
5349 len = mono_metadata_decode_value (ptr, &ptr);
5350 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5352 /* read cookie string */
5353 len = mono_metadata_decode_value (ptr, &ptr);
5354 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5357 if (res->native == MONO_NATIVE_SAFEARRAY) {
5358 res->data.safearray_data.elem_type = 0;
5359 res->data.safearray_data.num_elem = 0;
5360 if (ptr - start <= len)
5361 res->data.safearray_data.elem_type = *ptr++;
5362 if (ptr - start <= len)
5363 res->data.safearray_data.num_elem = *ptr++;
5369 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5371 if (spec->native == MONO_NATIVE_CUSTOM) {
5372 g_free (spec->data.custom_data.custom_name);
5373 g_free (spec->data.custom_data.cookie);
5379 * mono_type_to_unmanaged:
5381 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5382 * describing the underlying native reprensetation of the type.
5384 * In addition the value pointed by
5385 * "conv" will contain the kind of marshalling required for this
5386 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5389 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5390 gboolean unicode, MonoMarshalConv *conv)
5392 MonoMarshalConv dummy_conv;
5398 *conv = MONO_MARSHAL_CONV_NONE;
5401 return MONO_NATIVE_UINT;
5405 case MONO_TYPE_BOOLEAN:
5407 switch (mspec->native) {
5408 case MONO_NATIVE_VARIANTBOOL:
5409 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5410 return MONO_NATIVE_VARIANTBOOL;
5411 case MONO_NATIVE_BOOLEAN:
5412 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5413 return MONO_NATIVE_BOOLEAN;
5414 case MONO_NATIVE_I1:
5415 case MONO_NATIVE_U1:
5416 return mspec->native;
5418 g_error ("cant marshal bool to native type %02x", mspec->native);
5421 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5422 return MONO_NATIVE_BOOLEAN;
5423 case MONO_TYPE_CHAR:
5425 switch (mspec->native) {
5426 case MONO_NATIVE_U2:
5427 case MONO_NATIVE_U1:
5428 return mspec->native;
5430 g_error ("cant marshal char to native type %02x", mspec->native);
5433 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5434 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5435 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5436 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5437 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5438 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5439 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5440 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5441 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5442 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5443 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5444 case MONO_TYPE_STRING:
5446 switch (mspec->native) {
5447 case MONO_NATIVE_BSTR:
5448 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5449 return MONO_NATIVE_BSTR;
5450 case MONO_NATIVE_LPSTR:
5451 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5452 return MONO_NATIVE_LPSTR;
5453 case MONO_NATIVE_LPWSTR:
5454 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5455 return MONO_NATIVE_LPWSTR;
5456 case MONO_NATIVE_LPTSTR:
5457 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5458 return MONO_NATIVE_LPTSTR;
5459 case MONO_NATIVE_ANSIBSTR:
5460 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5461 return MONO_NATIVE_ANSIBSTR;
5462 case MONO_NATIVE_TBSTR:
5463 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5464 return MONO_NATIVE_TBSTR;
5465 case MONO_NATIVE_BYVALTSTR:
5467 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5469 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5470 return MONO_NATIVE_BYVALTSTR;
5472 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);
5476 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5477 return MONO_NATIVE_LPWSTR;
5480 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5481 return MONO_NATIVE_LPSTR;
5483 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5484 case MONO_TYPE_VALUETYPE: /*FIXME*/
5485 if (type->data.klass->enumtype) {
5486 t = mono_class_enum_basetype (type->data.klass)->type;
5489 if (type->data.klass == mono_defaults.handleref_class){
5490 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5491 return MONO_NATIVE_INT;
5493 return MONO_NATIVE_STRUCT;
5494 case MONO_TYPE_SZARRAY:
5495 case MONO_TYPE_ARRAY:
5497 switch (mspec->native) {
5498 case MONO_NATIVE_BYVALARRAY:
5499 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5500 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5502 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5503 return MONO_NATIVE_BYVALARRAY;
5504 case MONO_NATIVE_SAFEARRAY:
5505 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5506 return MONO_NATIVE_SAFEARRAY;
5507 case MONO_NATIVE_LPARRAY:
5508 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5509 return MONO_NATIVE_LPARRAY;
5511 g_error ("cant marshal array as native type %02x", mspec->native);
5515 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5516 return MONO_NATIVE_LPARRAY;
5517 case MONO_TYPE_I: return MONO_NATIVE_INT;
5518 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5519 case MONO_TYPE_CLASS:
5520 case MONO_TYPE_OBJECT: {
5521 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5523 switch (mspec->native) {
5524 case MONO_NATIVE_STRUCT:
5525 return MONO_NATIVE_STRUCT;
5526 case MONO_NATIVE_CUSTOM:
5527 return MONO_NATIVE_CUSTOM;
5528 case MONO_NATIVE_INTERFACE:
5529 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5530 return MONO_NATIVE_INTERFACE;
5531 case MONO_NATIVE_IDISPATCH:
5532 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5533 return MONO_NATIVE_IDISPATCH;
5534 case MONO_NATIVE_IUNKNOWN:
5535 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5536 return MONO_NATIVE_IUNKNOWN;
5537 case MONO_NATIVE_FUNC:
5538 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5539 type->data.klass == mono_defaults.delegate_class ||
5540 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5541 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5542 return MONO_NATIVE_FUNC;
5546 g_error ("cant marshal object as native type %02x", mspec->native);
5549 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5550 type->data.klass == mono_defaults.delegate_class ||
5551 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5552 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5553 return MONO_NATIVE_FUNC;
5555 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5556 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5557 return MONO_NATIVE_INT;
5559 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5560 return MONO_NATIVE_STRUCT;
5562 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5563 case MONO_TYPE_GENERICINST:
5564 type = &type->data.generic_class->container_class->byval_arg;
5567 case MONO_TYPE_TYPEDBYREF:
5569 g_error ("type 0x%02x not handled in marshal", t);
5571 return MONO_NATIVE_MAX;
5575 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5578 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5584 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5585 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5587 /* FIXME: Index translation */
5589 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5592 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5596 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
5598 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5600 switch (tok & MONO_METHODDEFORREF_MASK) {
5601 case MONO_METHODDEFORREF_METHODDEF:
5602 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
5603 case MONO_METHODDEFORREF_METHODREF:
5604 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
5606 g_assert_not_reached ();
5611 * mono_class_get_overrides_full:
5613 * Return the method overrides belonging to class @type_token in @overrides, and
5614 * the number of overrides in @num_overrides.
5616 * Returns: TRUE on success, FALSE on failure.
5619 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5620 MonoGenericContext *generic_context)
5624 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5627 guint32 cols [MONO_METHODIMPL_SIZE];
5628 MonoMethod **result;
5639 loc.col_idx = MONO_METHODIMPL_CLASS;
5640 loc.idx = mono_metadata_token_index (type_token);
5642 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5648 * We may end up in the middle of the rows...
5651 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5656 while (end < tdef->rows) {
5657 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5663 result = g_new (MonoMethod*, num * 2);
5664 for (i = 0; i < num; ++i) {
5667 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
5668 mono_error_cleanup (&error);
5673 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5674 method = method_from_method_def_or_ref (
5675 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
5678 result [i * 2] = method;
5679 method = method_from_method_def_or_ref (
5680 image, cols [MONO_METHODIMPL_BODY], generic_context);
5683 result [i * 2 + 1] = method;
5686 *overrides = result;
5688 *num_overrides = num;
5693 * mono_guid_to_string:
5695 * Converts a 16 byte Microsoft GUID to the standard string representation.
5698 mono_guid_to_string (const guint8 *guid)
5700 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5701 guid[3], guid[2], guid[1], guid[0],
5705 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
5709 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
5711 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
5712 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
5713 guint32 i, token, found;
5714 MonoClass *klass, **res;
5715 GSList *cons = NULL, *tmp;
5716 MonoGenericContext *context = &container->context;
5718 *constraints = NULL;
5720 for (i = 0; i < tdef->rows; ++i) {
5721 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
5722 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
5723 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
5724 klass = mono_class_get_full (image, token, context);
5726 g_slist_free (cons);
5729 cons = g_slist_append (cons, klass);
5732 /* contiguous list finished */
5739 res = mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
5740 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
5741 res [i] = tmp->data;
5743 g_slist_free (cons);
5749 * mono_metadata_get_generic_param_row:
5752 * @token: TypeOrMethodDef token, owner for GenericParam
5753 * @owner: coded token, set on return
5755 * Returns: 1-based row-id in the GenericParam table whose
5756 * owner is @token. 0 if not found.
5759 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
5761 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5768 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
5769 *owner = MONO_TYPEORMETHOD_TYPE;
5770 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5771 *owner = MONO_TYPEORMETHOD_METHOD;
5773 g_error ("wrong token %x to get_generic_param_row", token);
5776 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
5779 loc.col_idx = MONO_GENERICPARAM_OWNER;
5782 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5785 /* Find the first entry by searching backwards */
5786 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
5789 return loc.result + 1;
5793 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
5796 return mono_metadata_get_generic_param_row (image, token, &owner);
5800 * Memory is allocated from IMAGE's mempool.
5803 mono_metadata_load_generic_param_constraints_full (MonoImage *image, guint32 token,
5804 MonoGenericContainer *container)
5807 guint32 start_row, i, owner;
5808 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
5810 for (i = 0; i < container->type_argc; i++) {
5811 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container))
5818 * mono_metadata_load_generic_param_constraints:
5820 * @image: metadata context
5821 * @token: metadata token to load the contraints, can be methodef or typedef.
5822 * @container: generic container to load into.
5824 * Load the generic parameter constraints for the newly created generic type or method
5825 * represented by @token and @container. The @container is the new container which has
5826 * been returned by a call to mono_metadata_load_generic_params() with this @token.
5827 * Memory is allocated from IMAGE's mempool.
5830 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
5831 MonoGenericContainer *container)
5833 mono_metadata_load_generic_param_constraints_full (image, token, container);
5834 /*FIXME this function can potentially exit with a pending loader error and cause all sort of havok */
5838 * mono_metadata_load_generic_params:
5840 * Load the type parameters from the type or method definition @token.
5842 * Use this method after parsing a type or method definition to figure out whether it's a generic
5843 * type / method. When parsing a method definition, @parent_container points to the generic container
5844 * of the current class, if any.
5846 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
5847 * creating the type.
5849 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
5851 * LOCKING: Acquires the loader lock
5854 MonoGenericContainer *
5855 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
5857 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5858 guint32 cols [MONO_GENERICPARAM_SIZE];
5859 guint32 i, owner = 0, n;
5860 MonoGenericContainer *container;
5861 MonoGenericParamFull *params;
5862 MonoGenericContext *context;
5864 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
5866 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5869 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
5870 container->image = image;
5873 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
5874 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
5875 params [n - 1].param.owner = container;
5876 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
5877 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
5878 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
5879 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
5880 if (params [n - 1].param.num != n - 1)
5881 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
5882 if (++i > tdef->rows)
5884 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5885 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5887 container->type_argc = n;
5888 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
5889 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
5891 container->parent = parent_container;
5893 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5894 container->is_method = 1;
5896 g_assert (container->parent == NULL || container->is_method);
5898 context = &container->context;
5899 if (container->is_method) {
5900 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5901 context->method_inst = mono_get_shared_generic_inst (container);
5903 context->class_inst = mono_get_shared_generic_inst (container);
5910 mono_get_shared_generic_inst (MonoGenericContainer *container)
5912 MonoType **type_argv;
5914 MonoGenericInst *nginst;
5917 type_argv = g_new0 (MonoType *, container->type_argc);
5918 helper = g_new0 (MonoType, container->type_argc);
5920 for (i = 0; i < container->type_argc; i++) {
5921 MonoType *t = &helper [i];
5923 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5924 t->data.generic_param = mono_generic_container_get_param (container, i);
5929 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5938 * mono_type_is_byref:
5939 * @type: the MonoType operated on
5941 * Returns: #TRUE if @type represents a type passed by reference,
5945 mono_type_is_byref (MonoType *type)
5951 * mono_type_get_type:
5952 * @type: the MonoType operated on
5954 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
5955 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
5958 mono_type_get_type (MonoType *type)
5964 * mono_type_get_signature:
5965 * @type: the MonoType operated on
5967 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
5969 * Returns: the MonoMethodSignature pointer that describes the signature
5970 * of the function pointer @type represents.
5972 MonoMethodSignature*
5973 mono_type_get_signature (MonoType *type)
5975 g_assert (type->type == MONO_TYPE_FNPTR);
5976 return type->data.method;
5980 * mono_type_get_class:
5981 * @type: the MonoType operated on
5983 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
5984 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
5987 * Returns: the MonoClass pointer that describes the class that @type represents.
5990 mono_type_get_class (MonoType *type)
5992 /* FIXME: review the runtime users before adding the assert here */
5993 return type->data.klass;
5997 * mono_type_get_array_type:
5998 * @type: the MonoType operated on
6000 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6002 * Returns: a MonoArrayType struct describing the array type that @type
6003 * represents. The info includes details such as rank, array element type
6004 * and the sizes and bounds of multidimensional arrays.
6007 mono_type_get_array_type (MonoType *type)
6009 return type->data.array;
6013 * mono_type_get_ptr_type:
6014 * @type: the MonoType operated on
6016 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6019 * Returns: the MonoType pointer that describes the type that @type
6020 * represents a pointer to.
6023 mono_type_get_ptr_type (MonoType *type)
6025 g_assert (type->type == MONO_TYPE_PTR);
6026 return type->data.type;
6030 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6032 /* FIXME: implement */
6037 * mono_type_is_struct:
6038 * @type: the MonoType operated on
6040 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6041 * or a basic type like System.Int32. #FALSE otherwise.
6044 mono_type_is_struct (MonoType *type)
6046 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6047 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6048 ((type->type == MONO_TYPE_GENERICINST) &&
6049 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6050 !type->data.generic_class->container_class->enumtype)));
6054 * mono_type_is_void:
6055 * @type: the MonoType operated on
6057 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6060 mono_type_is_void (MonoType *type)
6062 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6066 * mono_type_is_pointer:
6067 * @type: the MonoType operated on
6069 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6072 mono_type_is_pointer (MonoType *type)
6074 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6075 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6076 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6077 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6078 (type->type == MONO_TYPE_FNPTR)));
6082 * mono_type_is_reference:
6083 * @type: the MonoType operated on
6085 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6088 mono_type_is_reference (MonoType *type)
6090 return (type && (((type->type == MONO_TYPE_STRING) ||
6091 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6092 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6093 ((type->type == MONO_TYPE_GENERICINST) &&
6094 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6098 * mono_signature_get_return_type:
6099 * @sig: the method signature inspected
6101 * Returns: the return type of the method signature @sig
6104 mono_signature_get_return_type (MonoMethodSignature *sig)
6110 * mono_signature_get_params:
6111 * @sig: the method signature inspected
6112 * #iter: pointer to an iterator
6114 * Iterates over the parameters for the method signature @sig.
6115 * A void* pointer must be initualized to #NULL to start the iteration
6116 * and it's address is passed to this function repeteadly until it returns
6119 * Returns: the next parameter type of the method signature @sig,
6120 * #NULL when finished.
6123 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6129 /* start from the first */
6130 if (sig->param_count) {
6131 *iter = &sig->params [0];
6132 return sig->params [0];
6140 if (type < &sig->params [sig->param_count]) {
6148 * mono_signature_get_param_count:
6149 * @sig: the method signature inspected
6151 * Returns: the number of parameters in the method signature @sig.
6154 mono_signature_get_param_count (MonoMethodSignature *sig)
6156 return sig->param_count;
6160 * mono_signature_get_call_conv:
6161 * @sig: the method signature inspected
6163 * Returns: the call convention of the method signature @sig.
6166 mono_signature_get_call_conv (MonoMethodSignature *sig)
6168 return sig->call_convention;
6172 * mono_signature_vararg_start:
6173 * @sig: the method signature inspected
6175 * Returns: the number of the first vararg parameter in the
6176 * method signature @sig. -1 if this is not a vararg signature.
6179 mono_signature_vararg_start (MonoMethodSignature *sig)
6181 return sig->sentinelpos;
6185 * mono_signature_is_instance:
6186 * @sig: the method signature inspected
6188 * Returns: #TRUE if this the method signature @sig has an implicit
6189 * first instance argument. #FALSE otherwise.
6192 mono_signature_is_instance (MonoMethodSignature *sig)
6194 return sig->hasthis;
6198 * mono_signature_explicit_this:
6199 * @sig: the method signature inspected
6201 * Returns: #TRUE if this the method signature @sig has an explicit
6202 * instance argument. #FALSE otherwise.
6205 mono_signature_explicit_this (MonoMethodSignature *sig)
6207 return sig->explicit_this;
6210 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6212 mono_aligned_addr_hash (gconstpointer ptr)
6214 return GPOINTER_TO_UINT (ptr) >> 3;
6218 * If @field belongs to an inflated generic class, return the corresponding field of the
6219 * generic type definition class.
6222 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6227 if (!field->parent->generic_class)
6230 gtd = field->parent->generic_class->container_class;
6231 offset = field - field->parent->fields;
6232 return gtd->fields + offset;
6236 * If @event belongs to an inflated generic class, return the corresponding event of the
6237 * generic type definition class.
6240 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6245 if (!event->parent->generic_class)
6248 gtd = event->parent->generic_class->container_class;
6249 offset = event - event->parent->ext->events;
6250 return gtd->ext->events + offset;
6254 * If @property belongs to an inflated generic class, return the corresponding property of the
6255 * generic type definition class.
6258 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6263 if (!property->parent->generic_class)
6266 gtd = property->parent->generic_class->container_class;
6267 offset = property - property->parent->ext->properties;
6268 return gtd->ext->properties + offset;