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);
761 /* 3 bits to encode */
762 field_size = rtsize (n, 16 - 3);
766 * MethodDefOrRef: MethodDef, MemberRef
768 case MONO_MT_MDOR_IDX:
769 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
770 meta->tables [MONO_TABLE_MEMBERREF].rows);
772 /* 1 bit used to encode tag */
773 field_size = rtsize (n, 16-1);
777 * HasSemantics: Property, Event
780 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
781 meta->tables [MONO_TABLE_EVENT].rows);
783 /* 1 bit used to encode tag */
784 field_size = rtsize (n, 16-1);
788 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
791 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
792 meta->tables [MONO_TABLE_MODULEREF].rows);
793 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
794 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
796 /* 2 bits used to encode tag (ECMA spec claims 3) */
797 field_size = rtsize (n, 16 - 2);
802 * encode field size as follows (we just need to
809 bitfield |= (field_size-1) << shift;
812 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
815 *result_bitfield = (i << 24) | bitfield;
820 * mono_metadata_compute_table_bases:
821 * @meta: metadata context to compute table values
823 * Computes the table bases for the metadata structure.
824 * This is an internal function used by the image loader code.
827 mono_metadata_compute_table_bases (MonoImage *meta)
830 const char *base = meta->tables_base;
832 for (i = 0; i < MONO_TABLE_NUM; i++) {
833 MonoTableInfo *table = &meta->tables [i];
834 if (table->rows == 0)
837 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
839 base += table->rows * table->row_size;
844 * mono_metadata_locate:
845 * @meta: metadata context
846 * @table: table code.
847 * @idx: index of element to retrieve from @table.
849 * Returns: a pointer to the @idx element in the metadata table
850 * whose code is @table.
853 mono_metadata_locate (MonoImage *meta, int table, int idx)
855 /* idx == 0 refers always to NULL */
856 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
858 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
862 * mono_metadata_locate_token:
863 * @meta: metadata context
864 * @token: metadata token
866 * Returns: a pointer to the data in the metadata represented by the
870 mono_metadata_locate_token (MonoImage *meta, guint32 token)
872 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
876 * mono_metadata_string_heap:
877 * @meta: metadata context
878 * @index: index into the string heap.
880 * Returns: an in-memory pointer to the @index in the string heap.
883 mono_metadata_string_heap (MonoImage *meta, guint32 index)
885 g_assert (index < meta->heap_strings.size);
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_assert (index < meta->heap_us.size);
901 g_return_val_if_fail (index < meta->heap_us.size, "");
902 return meta->heap_us.data + index;
906 * mono_metadata_blob_heap:
907 * @meta: metadata context
908 * @index: index into the blob.
910 * Returns: an in-memory pointer to the @index in the Blob heap.
913 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
915 g_assert (index < meta->heap_blob.size);
916 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
917 return meta->heap_blob.data + index;
921 * mono_metadata_guid_heap:
922 * @meta: metadata context
923 * @index: index into the guid heap.
925 * Returns: an in-memory pointer to the @index in the guid heap.
928 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
931 index *= 16; /* adjust for guid size and 1-based index */
932 g_return_val_if_fail (index < meta->heap_guid.size, "");
933 return meta->heap_guid.data + index;
936 static const unsigned char *
937 dword_align (const unsigned char *ptr)
939 #if SIZEOF_VOID_P == 8
940 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
942 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
947 * mono_metadata_decode_row:
948 * @t: table to extract information from.
949 * @idx: index in table.
950 * @res: array of @res_size cols to store the results in
952 * This decompresses the metadata element @idx in table @t
953 * into the guint32 @res array that has res_size elements
956 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
958 guint32 bitfield = t->size_bitfield;
959 int i, count = mono_metadata_table_count (bitfield);
962 g_assert (idx < t->rows);
964 data = t->base + idx * t->row_size;
966 g_assert (res_size == count);
968 for (i = 0; i < count; i++) {
969 int n = mono_metadata_table_size (bitfield, i);
973 res [i] = *data; break;
975 res [i] = read16 (data); break;
977 res [i] = read32 (data); break;
979 g_assert_not_reached ();
986 * mono_metadata_decode_row_col:
987 * @t: table to extract information from.
988 * @idx: index for row in table.
989 * @col: column in the row.
991 * This function returns the value of column @col from the @idx
992 * row in the table @t.
995 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
997 guint32 bitfield = t->size_bitfield;
999 register const char *data;
1002 g_assert (idx < t->rows);
1003 g_assert (col < mono_metadata_table_count (bitfield));
1004 data = t->base + idx * t->row_size;
1006 n = mono_metadata_table_size (bitfield, 0);
1007 for (i = 0; i < col; ++i) {
1009 n = mono_metadata_table_size (bitfield, i + 1);
1015 return read16 (data);
1017 return read32 (data);
1019 g_assert_not_reached ();
1025 * mono_metadata_decode_blob_size:
1026 * @ptr: pointer to a blob object
1027 * @rptr: the new position of the pointer
1029 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1031 * Returns: the size of the blob object
1034 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1036 const unsigned char *ptr = (const unsigned char *)xptr;
1039 if ((*ptr & 0x80) == 0){
1040 size = ptr [0] & 0x7f;
1042 } else if ((*ptr & 0x40) == 0){
1043 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1046 size = ((ptr [0] & 0x1f) << 24) +
1058 * mono_metadata_decode_value:
1059 * @ptr: pointer to decode from
1060 * @rptr: the new position of the pointer
1062 * This routine decompresses 32-bit values as specified in the "Blob and
1063 * Signature" section (22.2)
1065 * Returns: the decoded value
1068 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1070 const unsigned char *ptr = (const unsigned char *) _ptr;
1071 unsigned char b = *ptr;
1074 if ((b & 0x80) == 0){
1077 } else if ((b & 0x40) == 0){
1078 len = ((b & 0x3f) << 8 | ptr [1]);
1081 len = ((b & 0x1f) << 24) |
1094 * mono_metadata_decode_signed_value:
1095 * @ptr: pointer to decode from
1096 * @rptr: the new position of the pointer
1098 * This routine decompresses 32-bit signed values
1099 * (not specified in the spec)
1101 * Returns: the decoded value
1104 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1106 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1107 gint32 ival = uval >> 1;
1110 /* ival is a truncated 2's complement negative number. */
1112 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1115 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1116 return ival - 0x2000;
1117 if (ival < 0x10000000)
1118 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1119 return ival - 0x10000000;
1120 g_assert (ival < 0x20000000);
1121 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1122 return ival - 0x20000000;
1126 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1127 * using the *Ptr tables in uncompressed metadata, if they are available.
1129 * FIXME: The caller is not forced to call this function, which is error-prone, since
1130 * forgetting to call it would only show up as a bug on uncompressed metadata.
1133 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1135 if (!image->uncompressed_metadata)
1139 case MONO_TABLE_METHOD:
1140 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1141 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1144 case MONO_TABLE_FIELD:
1145 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1146 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1149 case MONO_TABLE_EVENT:
1150 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1151 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1154 case MONO_TABLE_PROPERTY:
1155 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1156 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1159 case MONO_TABLE_PARAM:
1160 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1161 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1170 * mono_metadata_decode_table_row:
1172 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1173 * uncompressed metadata into account, so it should be used to access the
1174 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1175 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1178 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1180 if (image->uncompressed_metadata)
1181 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1183 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1187 * mono_metadata_decode_table_row_col:
1189 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1190 * uncompressed metadata into account, so it should be used to access the
1191 * Method, Field, Param and Event tables.
1193 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1195 if (image->uncompressed_metadata)
1196 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1198 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1202 * mono_metadata_parse_typedef_or_ref:
1203 * @m: a metadata context.
1204 * @ptr: a pointer to an encoded TypedefOrRef in @m
1205 * @rptr: pointer updated to match the end of the decoded stream
1207 * Returns: a token valid in the @m metadata decoded from
1208 * the compressed representation.
1211 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1214 token = mono_metadata_decode_value (ptr, &ptr);
1217 return mono_metadata_token_from_dor (token);
1221 * mono_metadata_parse_custom_mod:
1222 * @m: a metadata context.
1223 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1224 * @ptr: a pointer to (possibly) the start of a custom modifier list
1225 * @rptr: pointer updated to match the end of the decoded stream
1227 * Checks if @ptr points to a type custom modifier compressed representation.
1229 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1232 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1234 MonoCustomMod local;
1235 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1238 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1239 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1246 * mono_metadata_parse_array_internal:
1247 * @m: a metadata context.
1248 * @transient: whenever to allocate data from the heap
1249 * @ptr: a pointer to an encoded array description.
1250 * @rptr: pointer updated to match the end of the decoded stream
1252 * Decodes the compressed array description found in the metadata @m at @ptr.
1254 * Returns: a #MonoArrayType structure describing the array type
1255 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1256 * on the value of @transient.
1258 * LOCKING: Acquires the loader lock
1260 static MonoArrayType *
1261 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1262 gboolean transient, const char *ptr, const char **rptr)
1265 MonoArrayType *array;
1268 array = transient ? g_malloc0 (sizeof (MonoArrayType)) : mono_image_alloc0 (m, sizeof (MonoArrayType));
1269 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1272 array->eklass = mono_class_from_mono_type (etype);
1273 array->rank = mono_metadata_decode_value (ptr, &ptr);
1275 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1276 if (array->numsizes)
1277 array->sizes = transient ? g_malloc0 (sizeof (int) * array->numsizes) : mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1278 for (i = 0; i < array->numsizes; ++i)
1279 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1281 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1282 if (array->numlobounds)
1283 array->lobounds = transient ? g_malloc0 (sizeof (int) * array->numlobounds) : mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1284 for (i = 0; i < array->numlobounds; ++i)
1285 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1293 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1294 const char *ptr, const char **rptr)
1296 return mono_metadata_parse_array_internal (m, container, FALSE, ptr, rptr);
1300 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1302 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1306 * mono_metadata_free_array:
1307 * @array: array description
1309 * Frees the array description returned from mono_metadata_parse_array().
1312 mono_metadata_free_array (MonoArrayType *array)
1314 g_free (array->sizes);
1315 g_free (array->lobounds);
1320 * need to add common field and param attributes combinations:
1323 * public static literal
1326 * private static literal
1328 static const MonoType
1330 /* data, attrs, type, nmods, byref, pinned */
1331 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1332 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1333 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1334 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1335 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1336 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1337 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1338 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1339 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1340 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1341 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1342 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1343 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1344 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1345 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1346 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1347 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1348 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1349 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1350 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1351 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1352 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1353 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1354 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1355 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1356 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1357 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1358 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1359 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1360 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1361 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1362 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1363 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1364 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1367 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1369 static GHashTable *type_cache = NULL;
1370 static int next_generic_inst_id = 0;
1372 static MonoImageSet *mscorlib_image_set;
1373 static GPtrArray *image_sets;
1375 static guint mono_generic_class_hash (gconstpointer data);
1378 * MonoTypes with modifies are never cached, so we never check or use that field.
1381 mono_type_hash (gconstpointer data)
1383 const MonoType *type = (const MonoType *) data;
1384 if (type->type == MONO_TYPE_GENERICINST)
1385 return mono_generic_class_hash (type->data.generic_class);
1387 return type->type | (type->byref << 8) | (type->attrs << 9);
1391 mono_type_equal (gconstpointer ka, gconstpointer kb)
1393 const MonoType *a = (const MonoType *) ka;
1394 const MonoType *b = (const MonoType *) kb;
1396 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1398 /* need other checks */
1403 mono_metadata_generic_inst_hash (gconstpointer data)
1405 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1409 for (i = 0; i < ginst->type_argc; ++i) {
1411 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1414 return hash ^ (ginst->is_open << 8);
1418 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1422 #ifndef MONO_SMALL_CONFIG
1423 if (a->id && b->id) {
1426 if (!signature_only)
1431 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1433 for (i = 0; i < a->type_argc; ++i) {
1434 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1441 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1443 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1444 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1446 return mono_generic_inst_equal_full (a, b, FALSE);
1450 mono_generic_class_hash (gconstpointer data)
1452 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1453 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1456 hash += gclass->is_tb_open;
1457 hash += mono_metadata_generic_context_hash (&gclass->context);
1463 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1465 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1466 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1468 return _mono_metadata_generic_class_equal (a, b, FALSE);
1472 * mono_metadata_init:
1474 * Initialize the global variables of this module.
1475 * This is a Mono runtime internal function.
1478 mono_metadata_init (void)
1482 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1484 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1485 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1489 * mono_metadata_cleanup:
1491 * Free all resources used by this module.
1492 * This is a Mono runtime internal function.
1495 mono_metadata_cleanup (void)
1497 g_hash_table_destroy (type_cache);
1499 g_ptr_array_free (image_sets, TRUE);
1504 * mono_metadata_parse_type:
1505 * @m: metadata context
1506 * @mode: king of type that may be found at @ptr
1507 * @opt_attrs: optional attributes to store in the returned type
1508 * @ptr: pointer to the type representation
1509 * @rptr: pointer updated to match the end of the decoded stream
1510 * @transient: whenever to allocate the result from the heap or from a mempool
1512 * Decode a compressed type description found at @ptr in @m.
1513 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1514 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1515 * This function can be used to decode type descriptions in method signatures,
1516 * field signatures, locals signatures etc.
1518 * To parse a generic type, `generic_container' points to the current class'es
1519 * (the `generic_container' field in the MonoClass) or the current generic method's
1520 * (stored in image->property_hash) generic container.
1521 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1522 * this MonoGenericContainer.
1524 * LOCKING: Acquires the loader lock.
1526 * Returns: a #MonoType structure representing the decoded type.
1529 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1530 short opt_attrs, gboolean transient, const char *ptr, const char **rptr)
1532 MonoType *type, *cached;
1534 gboolean byref = FALSE;
1535 gboolean pinned = FALSE;
1536 const char *tmp_ptr;
1541 * According to the spec, custom modifiers should come before the byref
1542 * flag, but the IL produced by ilasm from the following signature:
1543 * object modopt(...) &
1544 * starts with a byref flag, followed by the modifiers. (bug #49802)
1545 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1546 * it would be better to treat byref as real type constructor instead of
1548 * Also, pinned should come before anything else, but some MSV++ produced
1549 * assemblies violate this (#bug 61990).
1552 /* Count the modifiers first */
1557 case MONO_TYPE_PINNED:
1558 case MONO_TYPE_BYREF:
1561 case MONO_TYPE_CMOD_REQD:
1562 case MONO_TYPE_CMOD_OPT:
1564 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1574 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1575 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1576 type->num_mods = count;
1578 g_warning ("got more than 64 modifiers in type");
1581 memset (type, 0, MONO_SIZEOF_TYPE);
1584 /* Parse pinned, byref and custom modifiers */
1589 case MONO_TYPE_PINNED:
1593 case MONO_TYPE_BYREF:
1597 case MONO_TYPE_CMOD_REQD:
1598 case MONO_TYPE_CMOD_OPT:
1599 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1607 type->attrs = opt_attrs;
1608 type->byref = byref;
1609 type->pinned = pinned ? 1 : 0;
1611 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr)) {
1618 if (!type->num_mods && !transient) {
1619 /* no need to free type here, because it is on the stack */
1620 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1621 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1623 /* Consider the case:
1625 class Foo<T> { class Bar {} }
1626 class Test : Foo<Test>.Bar {}
1628 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1629 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1631 We ensure that the MonoClass is in a state that we can canonicalize to:
1633 klass->byval_arg.data.klass == klass
1634 klass->this_arg.data.klass == klass
1636 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1638 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1639 of a MonoClass which currently holds the loader lock. 'type' is local.
1641 if (ret->data.klass == type->data.klass) {
1645 /* No need to use locking since nobody is modifying the hash table */
1646 if ((cached = g_hash_table_lookup (type_cache, type))) {
1651 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1653 if (type == &stype) {
1654 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1655 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1661 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1662 short opt_attrs, const char *ptr, const char **rptr)
1664 return mono_metadata_parse_type_internal (m, container, mode, opt_attrs, FALSE, ptr, rptr);
1668 * LOCKING: Acquires the loader lock.
1671 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1672 const char *ptr, const char **rptr)
1674 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1678 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1680 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1681 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1682 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1684 if (def < methodt->rows)
1685 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1687 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1689 for (i = param_index; i < lastp; ++i) {
1690 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1699 * mono_metadata_get_param_attrs:
1701 * @m The image to loader parameter attributes from
1702 * @def method def token (one based)
1703 * @param_count number of params to decode including the return value
1705 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1706 * returned memory needs to be freed by the caller. If all the param attributes are
1707 * 0, then NULL is returned.
1710 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1712 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1713 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1714 guint32 cols [MONO_PARAM_SIZE];
1715 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1718 if (def < methodt->rows)
1719 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1721 lastp = paramt->rows + 1;
1723 for (i = param_index; i < lastp; ++i) {
1724 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1725 if (cols [MONO_PARAM_FLAGS]) {
1727 pattrs = g_new0 (int, param_count);
1728 /* at runtime we just ignore this kind of malformed file:
1729 * the verifier can signal the error to the user
1731 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1733 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1741 * mono_metadata_parse_signature_full:
1742 * @image: metadata context
1743 * @generic_container: generic container
1744 * @toke: metadata token
1746 * Decode a method signature stored in the STANDALONESIG table
1748 * LOCKING: Assumes the loader lock is held.
1750 * Returns: a MonoMethodSignature describing the signature.
1752 MonoMethodSignature*
1753 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1755 MonoTableInfo *tables = image->tables;
1756 guint32 idx = mono_metadata_token_index (token);
1761 return mono_lookup_dynamic_token (image, token, NULL);
1763 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1765 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1767 ptr = mono_metadata_blob_heap (image, sig);
1768 mono_metadata_decode_blob_size (ptr, &ptr);
1770 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1774 * mono_metadata_parse_signature:
1775 * @image: metadata context
1776 * @toke: metadata token
1778 * Decode a method signature stored in the STANDALONESIG table
1780 * Returns: a MonoMethodSignature describing the signature.
1782 MonoMethodSignature*
1783 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1785 return mono_metadata_parse_signature_full (image, NULL, token);
1789 * mono_metadata_signature_alloc:
1790 * @image: metadata context
1791 * @nparmas: number of parameters in the signature
1793 * Allocate a MonoMethodSignature structure with the specified number of params.
1794 * The return type and the params types need to be filled later.
1795 * This is a Mono runtime internal function.
1797 * LOCKING: Assumes the loader lock is held.
1799 * Returns: the new MonoMethodSignature structure.
1801 MonoMethodSignature*
1802 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1804 MonoMethodSignature *sig;
1806 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1807 sig->param_count = nparams;
1808 sig->sentinelpos = -1;
1813 static MonoMethodSignature*
1814 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1817 MonoMethodSignature *ret;
1818 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1821 ret = mono_image_alloc (image, sigsize);
1823 ret = mono_mempool_alloc (mp, sigsize);
1825 ret = g_malloc (sigsize);
1827 memcpy (ret, sig, sigsize);
1831 MonoMethodSignature*
1832 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1834 return mono_metadata_signature_dup_internal (image, NULL, sig);
1837 /*The mempool is accessed without synchronization*/
1838 MonoMethodSignature*
1839 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1841 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1845 * mono_metadata_signature_dup:
1846 * @sig: method signature
1848 * Duplicate an existing MonoMethodSignature so it can be modified.
1849 * This is a Mono runtime internal function.
1851 * Returns: the new MonoMethodSignature structure.
1853 MonoMethodSignature*
1854 mono_metadata_signature_dup (MonoMethodSignature *sig)
1856 return mono_metadata_signature_dup_full (NULL, sig);
1860 * mono_metadata_signature_size:
1862 * Return the amount of memory allocated to SIG.
1865 mono_metadata_signature_size (MonoMethodSignature *sig)
1867 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1871 * mono_metadata_parse_method_signature:
1872 * @m: metadata context
1873 * @generic_container: generics container
1874 * @def: the MethodDef index or 0 for Ref signatures.
1875 * @ptr: pointer to the signature metadata representation
1876 * @rptr: pointer updated to match the end of the decoded stream
1878 * Decode a method signature stored at @ptr.
1879 * This is a Mono runtime internal function.
1881 * LOCKING: Assumes the loader lock is held.
1883 * Returns: a MonoMethodSignature describing the signature.
1885 MonoMethodSignature *
1886 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1887 int def, const char *ptr, const char **rptr)
1889 MonoMethodSignature *method;
1890 int i, *pattrs = NULL;
1891 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1892 guint32 gen_param_count = 0;
1893 gboolean is_open = FALSE;
1896 gen_param_count = 1;
1901 call_convention = *ptr & 0x0F;
1903 if (gen_param_count)
1904 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1905 param_count = mono_metadata_decode_value (ptr, &ptr);
1908 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 */
1910 method = mono_metadata_signature_alloc (m, param_count);
1911 method->hasthis = hasthis;
1912 method->explicit_this = explicit_this;
1913 method->call_convention = call_convention;
1914 method->generic_param_count = gen_param_count;
1916 if (call_convention != 0xa) {
1917 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1919 mono_metadata_free_method_signature (method);
1923 is_open = mono_class_is_open_constructed_type (method->ret);
1926 for (i = 0; i < method->param_count; ++i) {
1927 if (*ptr == MONO_TYPE_SENTINEL) {
1928 if (method->call_convention != MONO_CALL_VARARG || def) {
1929 g_warning ("found sentinel for methoddef or no vararg method 0x%08x on image %s", def, m->name);
1933 if (method->sentinelpos >= 0) {
1934 g_warning ("found sentinel twice in the same signature for method 0x%08x on image %s", def, m->name);
1938 method->sentinelpos = i;
1941 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1942 if (!method->params [i]) {
1943 mono_metadata_free_method_signature (method);
1948 is_open = mono_class_is_open_constructed_type (method->params [i]);
1951 /* The sentinel could be missing if the caller does not pass any additional arguments */
1952 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1953 method->sentinelpos = method->param_count;
1955 method->has_type_parameters = is_open;
1957 if (def && (method->call_convention == MONO_CALL_VARARG))
1958 method->sentinelpos = method->param_count;
1965 * Add signature to a cache and increase ref count...
1972 * mono_metadata_parse_method_signature:
1973 * @m: metadata context
1974 * @def: the MethodDef index or 0 for Ref signatures.
1975 * @ptr: pointer to the signature metadata representation
1976 * @rptr: pointer updated to match the end of the decoded stream
1978 * Decode a method signature stored at @ptr.
1979 * This is a Mono runtime internal function.
1981 * LOCKING: Assumes the loader lock is held.
1983 * Returns: a MonoMethodSignature describing the signature.
1985 MonoMethodSignature *
1986 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1988 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1992 * mono_metadata_free_method_signature:
1993 * @sig: signature to destroy
1995 * Free the memory allocated in the signature @sig.
1996 * This method needs to be robust and work also on partially-built
1997 * signatures, so it does extra checks.
2000 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2002 /* Everything is allocated from mempools */
2006 mono_metadata_free_type (sig->ret);
2007 for (i = 0; i < sig->param_count; ++i) {
2008 if (sig->params [i])
2009 mono_metadata_free_type (sig->params [i]);
2015 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2019 /* Allocated in inflate_generic_signature () */
2021 mono_metadata_free_type (sig->ret);
2022 for (i = 0; i < sig->param_count; ++i) {
2023 if (sig->params [i])
2024 mono_metadata_free_type (sig->params [i]);
2030 inflated_method_equal (gconstpointer a, gconstpointer b)
2032 const MonoMethodInflated *ma = a;
2033 const MonoMethodInflated *mb = b;
2034 if (ma->declaring != mb->declaring)
2036 if (ma->method.method.is_mb_open != mb->method.method.is_mb_open)
2038 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2042 inflated_method_hash (gconstpointer a)
2044 const MonoMethodInflated *ma = a;
2045 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->method.method.is_mb_open;
2049 inflated_signature_equal (gconstpointer a, gconstpointer b)
2051 const MonoInflatedMethodSignature *sig1 = a;
2052 const MonoInflatedMethodSignature *sig2 = b;
2054 /* sig->sig is assumed to be canonized */
2055 if (sig1->sig != sig2->sig)
2057 /* The generic instances are canonized */
2058 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2062 inflated_signature_hash (gconstpointer a)
2064 const MonoInflatedMethodSignature *sig = a;
2066 /* sig->sig is assumed to be canonized */
2067 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2071 dump_ginst (MonoGenericInst *ginst)
2076 g_print ("Ginst: <");
2077 for (i = 0; i < ginst->type_argc; ++i) {
2080 name = mono_type_get_name (ginst->type_argv [i]);
2081 g_print ("%s", name);
2087 static gboolean type_in_image (MonoType *type, MonoImage *image);
2090 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2092 gpointer iter = NULL;
2095 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2096 if (type_in_image (p, image))
2099 return type_in_image (mono_signature_get_return_type (sig), image);
2103 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2107 for (i = 0; i < ginst->type_argc; ++i) {
2108 if (type_in_image (ginst->type_argv [i], image))
2116 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2118 return gclass->container_class->image == image ||
2119 ginst_in_image (gclass->context.class_inst, image);
2123 type_in_image (MonoType *type, MonoImage *image)
2126 switch (type->type) {
2127 case MONO_TYPE_GENERICINST:
2128 return gclass_in_image (type->data.generic_class, image);
2130 type = type->data.type;
2132 case MONO_TYPE_SZARRAY:
2133 type = &type->data.klass->byval_arg;
2135 case MONO_TYPE_ARRAY:
2136 type = &type->data.array->eklass->byval_arg;
2138 case MONO_TYPE_FNPTR:
2139 return signature_in_image (type->data.method, image);
2140 case MONO_TYPE_VAR: {
2141 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2143 g_assert (!container->is_method);
2145 * FIXME: The following check is here solely
2146 * for monodis, which uses the internal
2148 * mono_metadata_load_generic_params(). The
2149 * caller of that function needs to fill in
2150 * owner->klass or owner->method of the
2151 * returned struct, but monodis doesn't do
2152 * that. The image unloading depends on that,
2153 * however, so a crash results without this
2156 if (!container->owner.klass)
2157 return container->image == image;
2158 return container->owner.klass->image == image;
2160 return type->data.generic_param->image == image;
2163 case MONO_TYPE_MVAR: {
2164 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2165 if (type->data.generic_param->image == image)
2168 g_assert (container->is_method);
2169 if (!container->owner.method)
2170 /* RefEmit created generic param whose method is not finished */
2171 return container->image == image;
2172 return container->owner.method->klass->image == image;
2174 return type->data.generic_param->image == image;
2178 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2179 return image == mono_class_from_mono_type (type)->image;
2186 * Return a MonoImageSet representing the set of images in IMAGES.
2188 * LOCKING: Assumes the loader lock is held.
2190 static MonoImageSet*
2191 get_image_set (MonoImage **images, int nimages)
2198 image_sets = g_ptr_array_new ();
2201 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2202 return mscorlib_image_set;
2204 /* Happens with empty generic instances */
2206 return mscorlib_image_set;
2208 if (images [0] == mono_defaults.corlib && nimages > 1)
2209 l = images [1]->image_sets;
2211 l = images [0]->image_sets;
2214 for (; l; l = l->next) {
2217 if (set->nimages == nimages) {
2218 for (j = 0; j < nimages; ++j) {
2219 for (k = 0; k < nimages; ++k)
2220 if (set->images [k] == images [j])
2234 set = g_new0 (MonoImageSet, 1);
2235 set->nimages = nimages;
2236 set->images = g_new0 (MonoImage*, nimages);
2237 InitializeCriticalSection (&set->lock);
2238 for (i = 0; i < nimages; ++i)
2239 set->images [i] = images [i];
2240 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2241 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2242 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2243 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2245 for (i = 0; i < nimages; ++i)
2246 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2248 g_ptr_array_add (image_sets, set);
2251 if (nimages == 1 && images [0] == mono_defaults.corlib)
2252 mscorlib_image_set = set;
2258 delete_image_set (MonoImageSet *set)
2262 g_hash_table_destroy (set->gclass_cache);
2263 g_hash_table_destroy (set->ginst_cache);
2264 g_hash_table_destroy (set->gmethod_cache);
2265 g_hash_table_destroy (set->gsignature_cache);
2267 for (i = 0; i < set->nimages; ++i)
2268 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2270 g_ptr_array_remove (image_sets, set);
2273 mono_mempool_destroy (set->mempool);
2274 g_free (set->images);
2275 DeleteCriticalSection (&set->lock);
2280 mono_image_set_lock (MonoImageSet *set)
2282 EnterCriticalSection (&set->lock);
2286 mono_image_set_unlock (MonoImageSet *set)
2288 LeaveCriticalSection (&set->lock);
2292 mono_image_set_alloc (MonoImageSet *set, guint size)
2296 mono_image_set_lock (set);
2298 set->mempool = mono_mempool_new_size (1024);
2299 res = mono_mempool_alloc (set->mempool, size);
2300 mono_image_set_unlock (set);
2306 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2310 mono_image_set_lock (set);
2312 set->mempool = mono_mempool_new_size (1024);
2313 res = mono_mempool_alloc0 (set->mempool, size);
2314 mono_image_set_unlock (set);
2320 mono_image_set_strdup (MonoImageSet *set, const char *s)
2324 mono_image_set_lock (set);
2326 set->mempool = mono_mempool_new_size (1024);
2327 res = mono_mempool_strdup (set->mempool, s);
2328 mono_image_set_unlock (set);
2334 * Structure used by the collect_..._images functions to store the image list.
2337 MonoImage *image_buf [64];
2339 int nimages, images_len;
2343 collect_data_init (CollectData *data)
2345 data->images = data->image_buf;
2346 data->images_len = 64;
2351 collect_data_free (CollectData *data)
2353 if (data->images != data->image_buf)
2354 g_free (data->images);
2358 enlarge_data (CollectData *data)
2360 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2361 MonoImage **d = g_new (MonoImage *, new_len);
2364 g_assert_not_reached ();
2365 memcpy (d, data->images, data->images_len);
2366 if (data->images != data->image_buf)
2367 g_free (data->images);
2369 data->images_len = new_len;
2373 add_image (MonoImage *image, CollectData *data)
2377 /* The arrays are small, so use a linear search instead of a hash table */
2378 for (i = 0; i < data->nimages; ++i)
2379 if (data->images [i] == image)
2382 if (data->nimages == data->images_len)
2383 enlarge_data (data);
2385 data->images [data->nimages ++] = image;
2389 collect_type_images (MonoType *type, CollectData *data);
2392 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2396 for (i = 0; i < ginst->type_argc; ++i) {
2397 collect_type_images (ginst->type_argv [i], data);
2402 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2404 add_image (gclass->container_class->image, data);
2405 if (gclass->context.class_inst)
2406 collect_ginst_images (gclass->context.class_inst, data);
2410 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2412 gpointer iter = NULL;
2415 collect_type_images (mono_signature_get_return_type (sig), data);
2416 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2417 collect_type_images (p, data);
2421 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2423 collect_signature_images (sig->sig, data);
2424 if (sig->context.class_inst)
2425 collect_ginst_images (sig->context.class_inst, data);
2426 if (sig->context.method_inst)
2427 collect_ginst_images (sig->context.method_inst, data);
2431 collect_method_images (MonoMethodInflated *method, CollectData *data)
2433 MonoMethod *m = method->declaring;
2435 add_image (method->declaring->klass->image, data);
2436 if (method->context.class_inst)
2437 collect_ginst_images (method->context.class_inst, data);
2438 if (method->context.method_inst)
2439 collect_ginst_images (method->context.method_inst, data);
2441 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2443 if (m->klass->image->dynamic)
2444 collect_signature_images (mono_method_signature (m), data);
2448 collect_type_images (MonoType *type, CollectData *data)
2451 switch (type->type) {
2452 case MONO_TYPE_GENERICINST:
2453 collect_gclass_images (type->data.generic_class, data);
2456 type = type->data.type;
2458 case MONO_TYPE_SZARRAY:
2459 type = &type->data.klass->byval_arg;
2461 case MONO_TYPE_ARRAY:
2462 type = &type->data.array->eklass->byval_arg;
2464 case MONO_TYPE_FNPTR:
2465 //return signature_in_image (type->data.method, image);
2466 g_assert_not_reached ();
2467 case MONO_TYPE_VAR: {
2468 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2470 g_assert (!container->is_method);
2472 * FIXME: The following check is here solely
2473 * for monodis, which uses the internal
2475 * mono_metadata_load_generic_params(). The
2476 * caller of that function needs to fill in
2477 * owner->klass or owner->method of the
2478 * returned struct, but monodis doesn't do
2479 * that. The image unloading depends on that,
2480 * however, so a crash results without this
2483 if (!container->owner.klass)
2484 add_image (container->image, data);
2486 add_image (container->owner.klass->image, data);
2488 add_image (type->data.generic_param->image, data);
2492 case MONO_TYPE_MVAR: {
2493 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2494 if (type->data.generic_param->image)
2495 add_image (type->data.generic_param->image, data);
2497 if (!container->owner.method) {
2498 /* RefEmit created generic param whose method is not finished */
2499 add_image (container->image, data);
2501 g_assert (container->is_method);
2502 add_image (container->owner.method->klass->image, data);
2505 add_image (type->data.generic_param->image, data);
2509 case MONO_TYPE_CLASS:
2510 case MONO_TYPE_VALUETYPE:
2511 add_image (mono_class_from_mono_type (type)->image, data);
2514 add_image (mono_defaults.corlib, data);
2521 } CleanForImageUserData;
2524 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2526 MonoGenericClass *gclass = key;
2527 CleanForImageUserData *user_data = data;
2529 g_assert (gclass_in_image (gclass, user_data->image));
2531 user_data->list = g_slist_prepend (user_data->list, gclass);
2536 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2538 MonoGenericInst *ginst = key;
2539 CleanForImageUserData *user_data = data;
2541 // This doesn't work during corlib compilation
2542 //g_assert (ginst_in_image (ginst, user_data->image));
2544 user_data->list = g_slist_prepend (user_data->list, ginst);
2549 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2551 MonoImage *image = data;
2552 MonoMethodInflated *method = key;
2555 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2556 g_assert (method->declaring->klass->image == image ||
2557 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2558 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2564 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2566 MonoImage *image = data;
2567 MonoInflatedMethodSignature *sig = key;
2569 return signature_in_image (sig->sig, image) ||
2570 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2571 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2575 check_gmethod (gpointer key, gpointer value, gpointer data)
2577 MonoMethodInflated *method = key;
2578 MonoImage *image = data;
2580 if (method->context.class_inst)
2581 g_assert (!ginst_in_image (method->context.class_inst, image));
2582 if (method->context.method_inst)
2583 g_assert (!ginst_in_image (method->context.method_inst, image));
2584 if (((MonoMethod*)method)->signature)
2585 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2591 * Run a consistency check on the image set data structures.
2593 static G_GNUC_UNUSED void
2594 check_image_sets (MonoImage *image)
2597 GSList *l = image->image_sets;
2602 for (i = 0; i < image_sets->len; ++i) {
2603 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2605 if (!g_slist_find (l, set)) {
2606 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2612 mono_metadata_clean_for_image (MonoImage *image)
2614 CleanForImageUserData ginst_data, gclass_data;
2615 GSList *l, *set_list, *free_list = NULL;
2617 //check_image_sets (image);
2620 * The data structures could reference each other so we delete them in two phases.
2621 * This is required because of the hashing functions in gclass/ginst_cache.
2623 ginst_data.image = gclass_data.image = image;
2624 ginst_data.list = gclass_data.list = NULL;
2625 mono_loader_lock ();
2627 /* Collect the items to delete */
2628 /* delete_image_set () modifies the lists so make a copy */
2629 for (l = image->image_sets; l; l = l->next) {
2630 MonoImageSet *set = l->data;
2632 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2633 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2634 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2635 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2638 /* Delete the removed items */
2639 for (l = ginst_data.list; l; l = l->next)
2640 free_generic_inst (l->data);
2641 for (l = gclass_data.list; l; l = l->next)
2642 free_generic_class (l->data);
2643 g_slist_free (ginst_data.list);
2644 g_slist_free (gclass_data.list);
2645 /* delete_image_set () modifies the lists so make a copy */
2646 set_list = g_slist_copy (image->image_sets);
2647 for (l = set_list; l; l = l->next) {
2648 MonoImageSet *set = l->data;
2650 delete_image_set (set);
2652 g_slist_free (set_list);
2654 mono_loader_unlock ();
2660 free_inflated_method (MonoMethodInflated *imethod)
2663 MonoMethod *method = (MonoMethod*)imethod;
2665 mono_marshal_free_inflated_wrappers (method);
2667 if (method->signature)
2668 mono_metadata_free_inflated_signature (method->signature);
2670 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))) {
2671 MonoMethodHeader *header = imethod->header;
2674 /* Allocated in inflate_generic_header () */
2675 for (i = 0; i < header->num_locals; ++i)
2676 mono_metadata_free_type (header->locals [i]);
2677 g_free (header->clauses);
2686 free_generic_inst (MonoGenericInst *ginst)
2690 /* The ginst itself is allocated from the image set mempool */
2691 for (i = 0; i < ginst->type_argc; ++i)
2692 mono_metadata_free_type (ginst->type_argv [i]);
2696 free_generic_class (MonoGenericClass *gclass)
2698 /* The gclass itself is allocated from the image set mempool */
2699 if (gclass->is_dynamic)
2700 mono_reflection_free_dynamic_generic_class (gclass);
2701 if (gclass->cached_class && gclass->cached_class->interface_id)
2702 mono_unload_interface_id (gclass->cached_class);
2706 free_inflated_signature (MonoInflatedMethodSignature *sig)
2708 mono_metadata_free_inflated_signature (sig->sig);
2713 * LOCKING: assumes the loader lock is held.
2716 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2721 collect_data_init (&data);
2723 collect_method_images (method, &data);
2725 set = get_image_set (data.images, data.nimages);
2727 collect_data_free (&data);
2730 g_hash_table_insert (set->gmethod_cache, method, method);
2734 return g_hash_table_lookup (set->gmethod_cache, method);
2739 * mono_metadata_get_inflated_signature:
2741 * Given an inflated signature and a generic context, return a canonical copy of the
2742 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2744 MonoMethodSignature *
2745 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2747 MonoInflatedMethodSignature helper;
2748 MonoInflatedMethodSignature *res;
2752 mono_loader_lock ();
2755 helper.context.class_inst = context->class_inst;
2756 helper.context.method_inst = context->method_inst;
2758 collect_data_init (&data);
2760 collect_inflated_signature_images (&helper, &data);
2762 set = get_image_set (data.images, data.nimages);
2764 collect_data_free (&data);
2766 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2768 res = g_new0 (MonoInflatedMethodSignature, 1);
2770 res->context.class_inst = context->class_inst;
2771 res->context.method_inst = context->method_inst;
2772 g_hash_table_insert (set->gsignature_cache, res, res);
2775 mono_loader_unlock ();
2780 * mono_metadata_get_generic_inst:
2782 * Given a list of types, return a MonoGenericInst that represents that list.
2783 * The returned MonoGenericInst has its own copy of the list of types. The list
2784 * passed in the argument can be freed, modified or disposed of.
2788 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2790 MonoGenericInst *ginst;
2793 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2797 for (i = 0; i < type_argc; ++i)
2798 if (mono_class_is_open_constructed_type (type_argv [i]))
2800 is_open = (i < type_argc);
2802 ginst = g_alloca (size);
2803 memset (ginst, 0, sizeof (MonoGenericInst));
2804 ginst->is_open = is_open;
2805 ginst->type_argc = type_argc;
2806 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2808 mono_loader_lock ();
2810 collect_data_init (&data);
2812 collect_ginst_images (ginst, &data);
2814 set = get_image_set (data.images, data.nimages);
2816 collect_data_free (&data);
2818 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2820 ginst = mono_image_set_alloc0 (set, size);
2821 #ifndef MONO_SMALL_CONFIG
2822 ginst->id = ++next_generic_inst_id;
2824 ginst->is_open = is_open;
2825 ginst->type_argc = type_argc;
2827 for (i = 0; i < type_argc; ++i)
2828 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2830 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2833 mono_loader_unlock ();
2838 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2840 MonoGenericContainer *container = container_class->generic_container;
2842 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2844 return inst == container->context.class_inst;
2848 * mono_metadata_lookup_generic_class:
2850 * Returns a MonoGenericClass with the given properties.
2854 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2856 MonoGenericClass *gclass;
2857 MonoGenericClass helper;
2858 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2862 helper.container_class = container_class;
2863 helper.context.class_inst = inst;
2864 helper.context.method_inst = NULL;
2865 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2866 helper.is_tb_open = is_tb_open;
2867 helper.cached_class = NULL;
2869 mono_loader_lock ();
2871 collect_data_init (&data);
2873 collect_gclass_images (&helper, &data);
2875 set = get_image_set (data.images, data.nimages);
2877 collect_data_free (&data);
2879 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
2881 /* A tripwire just to keep us honest */
2882 g_assert (!helper.cached_class);
2885 mono_loader_unlock ();
2890 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
2891 gclass = &dgclass->generic_class;
2892 gclass->is_dynamic = 1;
2894 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
2897 gclass->is_tb_open = is_tb_open;
2898 gclass->container_class = container_class;
2899 gclass->context.class_inst = inst;
2900 gclass->context.method_inst = NULL;
2901 gclass->owner = set;
2902 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2903 gclass->cached_class = container_class;
2905 g_hash_table_insert (set->gclass_cache, gclass, gclass);
2907 mono_loader_unlock ();
2913 * mono_metadata_inflate_generic_inst:
2915 * Instantiate the generic instance @ginst with the context @context.
2916 * Check @error for success.
2920 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
2922 MonoType **type_argv;
2923 MonoGenericInst *nginst = NULL;
2926 mono_error_init (error);
2928 if (!ginst->is_open)
2931 type_argv = g_new0 (MonoType*, ginst->type_argc);
2933 for (i = 0; i < ginst->type_argc; i++) {
2934 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
2935 if (!mono_error_ok (error))
2940 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2943 for (i = 0; i < count; i++)
2944 mono_metadata_free_type (type_argv [i]);
2951 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2952 int count, const char *ptr, const char **rptr)
2954 MonoType **type_argv;
2955 MonoGenericInst *ginst;
2958 type_argv = g_new0 (MonoType*, count);
2960 for (i = 0; i < count; i++) {
2961 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2972 ginst = mono_metadata_get_generic_inst (count, type_argv);
2980 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2981 const char *ptr, const char **rptr)
2983 MonoGenericInst *inst;
2988 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2992 gklass = mono_class_from_mono_type (gtype);
2993 if (!gklass->generic_container)
2996 count = mono_metadata_decode_value (ptr, &ptr);
2997 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
3004 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3010 * @gc: The generic container to normalize
3011 * @type: The kind of generic parameters the resulting generic-container should contain
3014 static MonoGenericContainer *
3015 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3017 gboolean is_var = (type == MONO_TYPE_VAR);
3021 g_assert (is_var || type == MONO_TYPE_MVAR);
3024 if (gc->is_method || gc->parent)
3026 * The current MonoGenericContainer is a generic method -> its `parent'
3027 * points to the containing class'es container.
3036 * mono_metadata_parse_generic_param:
3037 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3038 * see mono_metadata_parse_type_full() for details.
3039 * Internal routine to parse a generic type parameter.
3040 * LOCKING: Acquires the loader lock
3042 static MonoGenericParam *
3043 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3044 MonoTypeEnum type, const char *ptr, const char **rptr)
3046 int index = mono_metadata_decode_value (ptr, &ptr);
3050 generic_container = select_container (generic_container, type);
3051 if (!generic_container) {
3052 /* Create dummy MonoGenericParam */
3053 MonoGenericParam *param;
3055 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3062 if (index >= generic_container->type_argc)
3065 return mono_generic_container_get_param (generic_container, index);
3069 * mono_metadata_get_shared_type:
3071 * Return a shared instance of TYPE, if available, NULL otherwise.
3072 * Shared MonoType instances help save memory. Their contents should not be modified
3073 * by the caller. They do not need to be freed as their lifetime is bound by either
3074 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3075 * instance they are embedded in. If they are freed, they should be freed using
3076 * mono_metadata_free_type () instead of g_free ().
3079 mono_metadata_get_shared_type (MonoType *type)
3083 /* No need to use locking since nobody is modifying the hash table */
3084 if ((cached = g_hash_table_lookup (type_cache, type)))
3087 switch (type->type){
3088 case MONO_TYPE_CLASS:
3089 case MONO_TYPE_VALUETYPE:
3090 if (type == &type->data.klass->byval_arg)
3092 if (type == &type->data.klass->this_arg)
3101 compare_type_literals (int class_type, int type_type)
3103 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3104 * See mcs/test/gtest-440. and #650936.
3105 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3109 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3112 if (type_type == MONO_TYPE_CLASS && (class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT))
3114 return class_type == type_type;
3118 * do_mono_metadata_parse_type:
3119 * @type: MonoType to be filled in with the return value
3121 * @generic_context: generics_context
3122 * @transient: whenever to allocate data from the heap
3123 * @ptr: pointer to the encoded type
3124 * @rptr: pointer where the end of the encoded type is saved
3126 * Internal routine used to "fill" the contents of @type from an
3127 * allocated pointer. This is done this way to avoid doing too
3128 * many mini-allocations (particularly for the MonoFieldType which
3129 * most of the time is just a MonoType, but sometimes might be augmented).
3131 * This routine is used by mono_metadata_parse_type and
3132 * mono_metadata_parse_field_type
3134 * This extracts a Type as specified in Partition II (22.2.12)
3136 * Returns: FALSE if the type could not be loaded
3139 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3140 gboolean transient, const char *ptr, const char **rptr)
3143 type->type = mono_metadata_decode_value (ptr, &ptr);
3145 switch (type->type){
3146 case MONO_TYPE_VOID:
3147 case MONO_TYPE_BOOLEAN:
3148 case MONO_TYPE_CHAR:
3161 case MONO_TYPE_STRING:
3162 case MONO_TYPE_OBJECT:
3163 case MONO_TYPE_TYPEDBYREF:
3165 case MONO_TYPE_VALUETYPE:
3166 case MONO_TYPE_CLASS: {
3169 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3170 class = mono_class_get (m, token);
3171 type->data.klass = class;
3174 if (!compare_type_literals (class->byval_arg.type, type->type))
3178 case MONO_TYPE_SZARRAY: {
3179 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3182 type->data.klass = mono_class_from_mono_type (etype);
3183 if (!type->data.klass)
3188 type->data.type = mono_metadata_parse_type_internal (m, container, MONO_PARSE_MOD_TYPE, 0, transient, ptr, &ptr);
3189 if (!type->data.type)
3192 case MONO_TYPE_FNPTR:
3193 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
3194 if (!type->data.method)
3197 case MONO_TYPE_ARRAY:
3198 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr);
3199 if (!type->data.array)
3202 case MONO_TYPE_MVAR:
3203 if (container && !container->is_method)
3206 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
3207 if (!type->data.generic_param)
3210 case MONO_TYPE_GENERICINST:
3211 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3214 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3224 * mono_metadata_free_type:
3225 * @type: type to free
3227 * Free the memory allocated for type @type which is allocated on the heap.
3230 mono_metadata_free_type (MonoType *type)
3232 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3235 switch (type->type){
3236 case MONO_TYPE_OBJECT:
3237 case MONO_TYPE_STRING:
3238 if (!type->data.klass)
3241 case MONO_TYPE_CLASS:
3242 case MONO_TYPE_VALUETYPE:
3243 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3247 mono_metadata_free_type (type->data.type);
3249 case MONO_TYPE_FNPTR:
3250 mono_metadata_free_method_signature (type->data.method);
3252 case MONO_TYPE_ARRAY:
3253 mono_metadata_free_array (type->data.array);
3262 hex_dump (const char *buffer, int base, int count)
3264 int show_header = 1;
3272 for (i = 0; i < count; i++){
3275 printf ("\n0x%08x: ", (unsigned char) base + i);
3277 printf ("%02x ", (unsigned char) (buffer [i]));
3284 * @ptr: Points to the beginning of the Section Data (25.3)
3286 static MonoExceptionClause*
3287 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3289 unsigned char sect_data_flags;
3290 const unsigned char *sptr;
3292 guint32 sect_data_len;
3293 MonoExceptionClause* clauses = NULL;
3296 /* align on 32-bit boundary */
3297 sptr = ptr = dword_align (ptr);
3298 sect_data_flags = *ptr;
3301 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3303 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3306 sect_data_len = ptr [0];
3310 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
3311 hex_dump (sptr, 0, sect_data_len+8);
3312 g_print ("\nheader: ");
3313 hex_dump (sptr-4, 0, 4);
3317 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3318 const unsigned char *p = dword_align (ptr);
3320 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3321 /* we could just store a pointer if we don't need to byteswap */
3322 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3323 for (i = 0; i < *num_clauses; ++i) {
3324 MonoExceptionClause *ec = &clauses [i];
3327 ec->flags = read32 (p);
3328 ec->try_offset = read32 (p + 4);
3329 ec->try_len = read32 (p + 8);
3330 ec->handler_offset = read32 (p + 12);
3331 ec->handler_len = read32 (p + 16);
3332 tof_value = read32 (p + 20);
3335 ec->flags = read16 (p);
3336 ec->try_offset = read16 (p + 2);
3337 ec->try_len = *(p + 4);
3338 ec->handler_offset = read16 (p + 5);
3339 ec->handler_len = *(p + 7);
3340 tof_value = read32 (p + 8);
3343 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3344 ec->data.filter_offset = tof_value;
3345 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3346 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
3348 ec->data.catch_class = NULL;
3350 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3354 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3355 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3362 * mono_method_get_header_summary:
3363 * @method: The method to get the header.
3364 * @summary: Where to store the header
3367 * Returns: true if the header was properly decoded.
3370 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3376 unsigned char flags, format;
3379 /*Only the GMD has a pointer to the metadata.*/
3380 while (method->is_inflated)
3381 method = ((MonoMethodInflated*)method)->declaring;
3383 summary->code_size = 0;
3384 summary->has_clauses = FALSE;
3386 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3387 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))
3390 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3391 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3394 summary->code_size = header->code_size;
3395 summary->has_clauses = header->num_clauses > 0;
3400 idx = mono_metadata_token_index (method->token);
3401 img = method->klass->image;
3402 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3404 /*We must run the verifier since we'll be decoding it.*/
3405 if (!mono_verifier_verify_method_header (img, rva, NULL))
3408 ptr = mono_image_rva_map (img, rva);
3411 flags = *(const unsigned char *)ptr;
3412 format = flags & METHOD_HEADER_FORMAT_MASK;
3415 case METHOD_HEADER_TINY_FORMAT:
3417 summary->code_size = flags >> 2;
3419 case METHOD_HEADER_FAT_FORMAT:
3420 fat_flags = read16 (ptr);
3422 summary->code_size = read32 (ptr);
3423 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3424 summary->has_clauses = TRUE;
3433 * mono_metadata_parse_mh_full:
3434 * @m: metadata context
3435 * @generic_context: generics context
3436 * @ptr: pointer to the method header.
3438 * Decode the method header at @ptr, including pointer to the IL code,
3439 * info about local variables and optional exception tables.
3440 * This is a Mono runtime internal function.
3442 * LOCKING: Acquires the loader lock.
3444 * Returns: a transient MonoMethodHeader allocated from the heap.
3447 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3449 MonoMethodHeader *mh;
3450 unsigned char flags = *(const unsigned char *) ptr;
3451 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3453 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3454 const unsigned char *code;
3455 MonoExceptionClause* clauses = NULL;
3456 int hsize, num_clauses = 0;
3457 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3458 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3460 g_return_val_if_fail (ptr != NULL, NULL);
3463 case METHOD_HEADER_TINY_FORMAT:
3464 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3467 mh->is_transient = TRUE;
3468 local_var_sig_tok = 0;
3469 mh->code_size = flags >> 2;
3470 mh->code = (unsigned char*)ptr;
3472 case METHOD_HEADER_FAT_FORMAT:
3473 fat_flags = read16 (ptr);
3475 hsize = (fat_flags >> 12) & 0xf;
3476 max_stack = read16 (ptr);
3478 code_size = read32 (ptr);
3480 local_var_sig_tok = read32 (ptr);
3483 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3488 code = (unsigned char*)ptr;
3490 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3494 * There are more sections
3496 ptr = (char*)code + code_size;
3502 if (local_var_sig_tok) {
3503 int idx = (local_var_sig_tok & 0xffffff)-1;
3504 if (idx >= t->rows || idx < 0)
3506 mono_metadata_decode_row (t, idx, cols, 1);
3508 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3511 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3512 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3513 if (local_var_sig_tok) {
3514 const char *locals_ptr;
3515 int len=0, i, bsize;
3517 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3518 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3519 if (*locals_ptr != 0x07)
3520 g_warning ("wrong signature for locals blob");
3522 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3523 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3524 mh->num_locals = len;
3525 for (i = 0; i < len; ++i) {
3526 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3527 MONO_PARSE_LOCAL, 0, TRUE, locals_ptr, &locals_ptr);
3528 if (!mh->locals [i]) {
3535 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3538 mh->code_size = code_size;
3539 mh->max_stack = max_stack;
3540 mh->is_transient = TRUE;
3541 mh->init_locals = init_locals;
3543 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3544 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3546 mh->clauses = clausesp;
3547 mh->num_clauses = num_clauses;
3553 * mono_metadata_parse_mh:
3554 * @generic_context: generics context
3555 * @ptr: pointer to the method header.
3557 * Decode the method header at @ptr, including pointer to the IL code,
3558 * info about local variables and optional exception tables.
3559 * This is a Mono runtime internal function.
3561 * Returns: a MonoMethodHeader.
3564 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3566 MonoMethodHeader *res;
3568 mono_loader_lock ();
3570 res = mono_metadata_parse_mh_full (m, NULL, ptr);
3572 mono_loader_unlock ();
3578 * mono_metadata_free_mh:
3579 * @mh: a method header
3581 * Free the memory allocated for the method header.
3584 mono_metadata_free_mh (MonoMethodHeader *mh)
3588 /* If it is not transient it means it's part of a wrapper method,
3589 * or a SRE-generated method, so the lifetime in that case is
3590 * dictated by the method's own lifetime
3592 if (mh->is_transient) {
3593 for (i = 0; i < mh->num_locals; ++i)
3594 mono_metadata_free_type (mh->locals [i]);
3600 * mono_method_header_get_code:
3601 * @header: a MonoMethodHeader pointer
3602 * @code_size: memory location for returning the code size
3603 * @max_stack: memory location for returning the max stack
3605 * Method header accessor to retreive info about the IL code properties:
3606 * a pointer to the IL code itself, the size of the code and the max number
3607 * of stack slots used by the code.
3609 * Returns: pointer to the IL code represented by the method header.
3611 const unsigned char*
3612 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3615 *code_size = header->code_size;
3617 *max_stack = header->max_stack;
3618 return header->code;
3622 * mono_method_header_get_locals:
3623 * @header: a MonoMethodHeader pointer
3624 * @num_locals: memory location for returning the number of local variables
3625 * @init_locals: memory location for returning the init_locals flag
3627 * Method header accessor to retreive info about the local variables:
3628 * an array of local types, the number of locals and whether the locals
3629 * are supposed to be initialized to 0 on method entry
3631 * Returns: pointer to an array of types of the local variables
3634 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3637 *num_locals = header->num_locals;
3639 *init_locals = header->init_locals;
3640 return header->locals;
3644 * mono_method_header_get_num_clauses:
3645 * @header: a MonoMethodHeader pointer
3647 * Method header accessor to retreive the number of exception clauses.
3649 * Returns: the number of exception clauses present
3652 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3654 return header->num_clauses;
3658 * mono_method_header_get_clauses:
3659 * @header: a MonoMethodHeader pointer
3660 * @method: MonoMethod the header belongs to
3661 * @iter: pointer to a iterator
3662 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3664 * Get the info about the exception clauses in the method. Set *iter to NULL to
3665 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3666 * At each iteration, the structure pointed to by clause if filled with the
3667 * exception clause information.
3669 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3673 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3675 MonoExceptionClause *sc;
3676 /* later we'll be able to use this interface to parse the clause info on demand,
3677 * without allocating anything.
3679 if (!iter || !header->num_clauses)
3682 *iter = sc = header->clauses;
3688 if (sc < header->clauses + header->num_clauses) {
3697 * mono_metadata_parse_field_type:
3698 * @m: metadata context to extract information from
3699 * @ptr: pointer to the field signature
3700 * @rptr: pointer updated to match the end of the decoded stream
3702 * Parses the field signature, and returns the type information for it.
3704 * Returns: The MonoType that was extracted from @ptr.
3707 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3709 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3713 * mono_metadata_parse_param:
3714 * @m: metadata context to extract information from
3715 * @ptr: pointer to the param signature
3716 * @rptr: pointer updated to match the end of the decoded stream
3718 * Parses the param signature, and returns the type information for it.
3720 * Returns: The MonoType that was extracted from @ptr.
3723 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3725 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3729 * mono_metadata_token_from_dor:
3730 * @dor_token: A TypeDefOrRef coded index
3732 * dor_token is a TypeDefOrRef coded index: it contains either
3733 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3734 * bits contain an index into the table.
3736 * Returns: an expanded token
3739 mono_metadata_token_from_dor (guint32 dor_index)
3743 table = dor_index & 0x03;
3744 idx = dor_index >> 2;
3747 case 0: /* TypeDef */
3748 return MONO_TOKEN_TYPE_DEF | idx;
3749 case 1: /* TypeRef */
3750 return MONO_TOKEN_TYPE_REF | idx;
3751 case 2: /* TypeSpec */
3752 return MONO_TOKEN_TYPE_SPEC | idx;
3754 g_assert_not_reached ();
3761 * We use this to pass context information to the row locator
3764 int idx; /* The index that we are trying to locate */
3765 int col_idx; /* The index in the row where idx may be stored */
3766 MonoTableInfo *t; /* pointer to the table */
3771 * How the row locator works.
3776 * ___|___------> _______
3779 * A column in the rows of table A references an index in table B.
3780 * For example A may be the TYPEDEF table and B the METHODDEF table.
3782 * Given an index in table B we want to get the row in table A
3783 * where the column n references our index in B.
3785 * In the locator_t structure:
3787 * col_idx is the column number
3788 * index is the index in table B
3789 * result will be the index in table A
3792 * Table A Table B column (in table A)
3793 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3794 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3795 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3796 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3797 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3799 * Note that we still don't support encoded indexes.
3803 typedef_locator (const void *a, const void *b)
3805 locator_t *loc = (locator_t *) a;
3806 const char *bb = (const char *) b;
3807 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3808 guint32 col, col_next;
3810 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3816 * Need to check that the next row is valid.
3818 if (typedef_index + 1 < loc->t->rows) {
3819 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3820 if (loc->idx >= col_next)
3823 if (col == col_next)
3827 loc->result = typedef_index;
3833 table_locator (const void *a, const void *b)
3835 locator_t *loc = (locator_t *) a;
3836 const char *bb = (const char *) b;
3837 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3840 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3842 if (loc->idx == col) {
3843 loc->result = table_index;
3853 declsec_locator (const void *a, const void *b)
3855 locator_t *loc = (locator_t *) a;
3856 const char *bb = (const char *) b;
3857 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3860 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3862 if (loc->idx == col) {
3863 loc->result = table_index;
3875 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3876 * which contains IDX.
3879 search_ptr_table (MonoImage *image, int table, int idx)
3881 MonoTableInfo *ptrdef = &image->tables [table];
3884 /* Use a linear search to find our index in the table */
3885 for (i = 0; i < ptrdef->rows; i ++)
3886 /* All the Ptr tables have the same structure */
3887 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3890 if (i < ptrdef->rows)
3897 * mono_metadata_typedef_from_field:
3898 * @meta: metadata context
3899 * @index: FieldDef token
3901 * Returns: the 1-based index into the TypeDef table of the type that
3902 * declared the field described by @index, or 0 if not found.
3905 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3907 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3913 loc.idx = mono_metadata_token_index (index);
3914 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3917 if (meta->uncompressed_metadata)
3918 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3920 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3923 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3924 return loc.result + 1;
3928 * mono_metadata_typedef_from_method:
3929 * @meta: metadata context
3930 * @index: MethodDef token
3932 * Returns: the 1-based index into the TypeDef table of the type that
3933 * declared the method described by @index. 0 if not found.
3936 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3938 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3944 loc.idx = mono_metadata_token_index (index);
3945 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3948 if (meta->uncompressed_metadata)
3949 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3951 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3954 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3955 return loc.result + 1;
3959 * mono_metadata_interfaces_from_typedef_full:
3960 * @meta: metadata context
3961 * @index: typedef token
3962 * @interfaces: Out parameter used to store the interface array
3963 * @count: Out parameter used to store the number of interfaces
3964 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
3965 * @context: The generic context
3967 * The array of interfaces that the @index typedef token implements is returned in
3968 * @interfaces. The number of elements in the array is returned in @count.
3970 * LOCKING: Assumes the loader lock is held.
3972 * Returns: TRUE on success, FALSE on failure.
3975 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context)
3977 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3980 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3989 loc.idx = mono_metadata_token_index (index);
3990 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3993 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3998 * We may end up in the middle of the rows...
4001 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4007 while (pos < tdef->rows) {
4008 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4009 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4014 if (heap_alloc_result)
4015 result = g_new0 (MonoClass*, pos - start);
4017 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4020 while (pos < tdef->rows) {
4023 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4024 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4026 iface = mono_class_get_full (
4027 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
4030 result [pos - start] = iface;
4033 *count = pos - start;
4034 *interfaces = result;
4039 * @meta: metadata context
4040 * @index: typedef token
4041 * @count: Out parameter used to store the number of interfaces
4043 * The array of interfaces that the @index typedef token implements is returned in
4044 * @interfaces. The number of elements in the array is returned in @count. The returned
4045 * array is g_malloc'd and the caller must free it.
4047 * LOCKING: Acquires the loader lock .
4049 * Returns: the interface array on success, NULL on failure.
4053 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4055 MonoClass **interfaces;
4058 mono_loader_lock ();
4059 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL);
4060 mono_loader_unlock ();
4068 * mono_metadata_nested_in_typedef:
4069 * @meta: metadata context
4070 * @index: typedef token
4072 * Returns: the 1-based index into the TypeDef table of the type
4073 * where the type described by @index is nested.
4074 * Returns 0 if @index describes a non-nested type.
4077 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4079 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4085 loc.idx = mono_metadata_token_index (index);
4086 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4089 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4092 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4093 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4097 * mono_metadata_nesting_typedef:
4098 * @meta: metadata context
4099 * @index: typedef token
4101 * Returns: the 1-based index into the TypeDef table of the first type
4102 * that is nested inside the type described by @index. The search starts at
4103 * @start_index. returns 0 if no such type is found.
4106 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4108 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4110 guint32 class_index = mono_metadata_token_index (index);
4115 start = start_index;
4117 while (start <= tdef->rows) {
4118 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4124 if (start > tdef->rows)
4131 * mono_metadata_packing_from_typedef:
4132 * @meta: metadata context
4133 * @index: token representing a type
4135 * Returns: the info stored in the ClassLAyout table for the given typedef token
4136 * into the @packing and @size pointers.
4137 * Returns 0 if the info is not found.
4140 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4142 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4144 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4149 loc.idx = mono_metadata_token_index (index);
4150 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4153 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4156 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4158 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4160 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4162 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4163 return loc.result + 1;
4167 * mono_metadata_custom_attrs_from_index:
4168 * @meta: metadata context
4169 * @index: token representing the parent
4171 * Returns: the 1-based index into the CustomAttribute table of the first
4172 * attribute which belongs to the metadata object described by @index.
4173 * Returns 0 if no such attribute is found.
4176 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4178 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4185 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4188 /* FIXME: Index translation */
4190 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4193 /* Find the first entry by searching backwards */
4194 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4197 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4198 return loc.result + 1;
4202 * mono_metadata_declsec_from_index:
4203 * @meta: metadata context
4204 * @index: token representing the parent
4206 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4207 * attribute which belongs to the metadata object described by @index.
4208 * Returns -1 if no such attribute is found.
4211 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4213 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4220 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4223 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4226 /* Find the first entry by searching backwards */
4227 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4235 mono_backtrace (int limit)
4240 backtrace (array, limit);
4241 names = backtrace_symbols (array, limit);
4242 for (i =0; i < limit; ++i) {
4243 g_print ("\t%s\n", names [i]);
4249 #define abi__alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
4253 * @t: the type to return the size of
4255 * Returns: the number of bytes required to hold an instance of this
4259 mono_type_size (MonoType *t, int *align)
4266 *align = abi__alignof__(gpointer);
4267 return sizeof (gpointer);
4271 case MONO_TYPE_VOID:
4274 case MONO_TYPE_BOOLEAN:
4275 *align = abi__alignof__(gint8);
4279 *align = abi__alignof__(gint8);
4281 case MONO_TYPE_CHAR:
4284 *align = abi__alignof__(gint16);
4288 *align = abi__alignof__(gint32);
4291 *align = abi__alignof__(float);
4295 *align = abi__alignof__(gint64);
4298 *align = abi__alignof__(double);
4302 *align = abi__alignof__(gpointer);
4303 return sizeof (gpointer);
4304 case MONO_TYPE_STRING:
4305 *align = abi__alignof__(gpointer);
4306 return sizeof (gpointer);
4307 case MONO_TYPE_OBJECT:
4308 *align = abi__alignof__(gpointer);
4309 return sizeof (gpointer);
4310 case MONO_TYPE_VALUETYPE: {
4311 if (t->data.klass->enumtype)
4312 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4314 return mono_class_value_size (t->data.klass, (guint32*)align);
4316 case MONO_TYPE_CLASS:
4317 case MONO_TYPE_SZARRAY:
4319 case MONO_TYPE_FNPTR:
4320 case MONO_TYPE_ARRAY:
4321 *align = abi__alignof__(gpointer);
4322 return sizeof (gpointer);
4323 case MONO_TYPE_TYPEDBYREF:
4324 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4325 case MONO_TYPE_GENERICINST: {
4326 MonoGenericClass *gclass = t->data.generic_class;
4327 MonoClass *container_class = gclass->container_class;
4329 // g_assert (!gclass->inst->is_open);
4331 if (container_class->valuetype) {
4332 if (container_class->enumtype)
4333 return mono_type_size (mono_class_enum_basetype (container_class), align);
4335 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4337 *align = abi__alignof__(gpointer);
4338 return sizeof (gpointer);
4342 case MONO_TYPE_MVAR:
4343 /* FIXME: Martin, this is wrong. */
4344 *align = abi__alignof__(gpointer);
4345 return sizeof (gpointer);
4347 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4353 * mono_type_stack_size:
4354 * @t: the type to return the size it uses on the stack
4356 * Returns: the number of bytes required to hold an instance of this
4357 * type on the runtime stack
4360 mono_type_stack_size (MonoType *t, int *align)
4362 return mono_type_stack_size_internal (t, align, FALSE);
4366 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4369 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4370 int stack_slot_size = sizeof (gpointer);
4371 int stack_slot_align = abi__alignof__ (gpointer);
4372 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4373 int stack_slot_size = SIZEOF_REGISTER;
4374 int stack_slot_align = SIZEOF_REGISTER;
4377 g_assert (t != NULL);
4383 *align = stack_slot_align;
4384 return stack_slot_size;
4388 case MONO_TYPE_BOOLEAN:
4389 case MONO_TYPE_CHAR:
4398 case MONO_TYPE_STRING:
4399 case MONO_TYPE_OBJECT:
4400 case MONO_TYPE_CLASS:
4401 case MONO_TYPE_SZARRAY:
4403 case MONO_TYPE_FNPTR:
4404 case MONO_TYPE_ARRAY:
4405 *align = stack_slot_align;
4406 return stack_slot_size;
4408 case MONO_TYPE_MVAR:
4409 g_assert (allow_open);
4410 *align = stack_slot_align;
4411 return stack_slot_size;
4412 case MONO_TYPE_TYPEDBYREF:
4413 *align = stack_slot_align;
4414 return stack_slot_size * 3;
4416 *align = abi__alignof__(float);
4417 return sizeof (float);
4420 *align = abi__alignof__(gint64);
4421 return sizeof (gint64);
4423 *align = abi__alignof__(double);
4424 return sizeof (double);
4425 case MONO_TYPE_VALUETYPE: {
4428 if (t->data.klass->enumtype)
4429 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4431 size = mono_class_value_size (t->data.klass, (guint32*)align);
4433 *align = *align + stack_slot_align - 1;
4434 *align &= ~(stack_slot_align - 1);
4436 size += stack_slot_size - 1;
4437 size &= ~(stack_slot_size - 1);
4442 case MONO_TYPE_GENERICINST: {
4443 MonoGenericClass *gclass = t->data.generic_class;
4444 MonoClass *container_class = gclass->container_class;
4447 g_assert (!gclass->context.class_inst->is_open);
4449 if (container_class->valuetype) {
4450 if (container_class->enumtype)
4451 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4453 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4455 *align = *align + stack_slot_align - 1;
4456 *align &= ~(stack_slot_align - 1);
4458 size += stack_slot_size - 1;
4459 size &= ~(stack_slot_size - 1);
4464 *align = stack_slot_align;
4465 return stack_slot_size;
4469 g_error ("type 0x%02x unknown", t->type);
4475 mono_type_generic_inst_is_valuetype (MonoType *type)
4477 g_assert (type->type == MONO_TYPE_GENERICINST);
4478 return type->data.generic_class->container_class->valuetype;
4482 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4484 return gclass->container_class->valuetype;
4488 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4490 MonoGenericInst *i1 = g1->context.class_inst;
4491 MonoGenericInst *i2 = g2->context.class_inst;
4493 if (g1->is_dynamic != g2->is_dynamic)
4495 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4497 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4499 return g1->is_tb_open == g2->is_tb_open;
4503 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4505 MonoGenericInst *i1 = g1->context.class_inst;
4506 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4508 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4510 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4512 return !g1->is_tb_open;
4516 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4518 /* FIXME: check if this seed is good enough */
4519 guint hash = 0xc01dfee7;
4520 if (context->class_inst)
4521 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4522 if (context->method_inst)
4523 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4528 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4530 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4534 * mono_metadata_str_hash:
4536 * This should be used instead of g_str_hash for computing hash codes visible
4537 * outside this module, since g_str_hash () is not guaranteed to be stable
4538 * (its not the same in eglib for example).
4541 mono_metadata_str_hash (gconstpointer v1)
4543 /* Same as g_str_hash () in glib */
4544 char *p = (char *) v1;
4549 hash = (hash << 5) - hash + *p;
4556 * mono_metadata_type_hash:
4559 * Computes an hash value for @t1 to be used in GHashTable.
4560 * The returned hash is guaranteed to be the same across executions.
4563 mono_metadata_type_hash (MonoType *t1)
4565 guint hash = t1->type;
4567 hash |= t1->byref << 6; /* do not collide with t1->type values */
4569 case MONO_TYPE_VALUETYPE:
4570 case MONO_TYPE_CLASS:
4571 case MONO_TYPE_SZARRAY: {
4572 MonoClass *class = t1->data.klass;
4574 * Dynamic classes must not be hashed on their type since it can change
4575 * during runtime. For example, if we hash a reference type that is
4576 * later made into a valuetype.
4578 * This is specially problematic with generic instances since they are
4579 * inserted in a bunch of hash tables before been finished.
4581 if (class->image->dynamic)
4582 return (t1->byref << 6) | mono_metadata_str_hash (class->name);
4583 return ((hash << 5) - hash) ^ mono_metadata_str_hash (class->name);
4586 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4587 case MONO_TYPE_ARRAY:
4588 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4589 case MONO_TYPE_GENERICINST:
4590 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4596 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4600 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4602 if (p1->serial != p2->serial)
4606 * We have to compare the image as well because if we didn't,
4607 * the generic_inst_cache lookup wouldn't care about the image
4608 * of generic params, so what could happen is that a generic
4609 * inst with params from image A is put into the cache, then
4610 * image B gets that generic inst from the cache, image A is
4611 * unloaded, so the inst is deleted, but image B still retains
4614 * The AOT runtime doesn't set the image when it's decoding
4615 * types, so we only compare it when the owner is NULL.
4617 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4618 (mono_generic_param_owner (p1) || p1->image == p2->image))
4622 * If `signature_only' is true, we're comparing two (method) signatures.
4623 * In this case, the owner of two type parameters doesn't need to match.
4626 return signature_only;
4630 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4634 if (c1->generic_class && c2->generic_class)
4635 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4636 if (c1->generic_class && c2->generic_container)
4637 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4638 if (c1->generic_container && c2->generic_class)
4639 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4640 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4641 return mono_metadata_generic_param_equal (
4642 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4643 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4644 return mono_metadata_generic_param_equal (
4645 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4646 if (signature_only &&
4647 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4648 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4649 if (signature_only &&
4650 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
4651 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
4656 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4658 gpointer iter1 = 0, iter2 = 0;
4662 if (s1->call_convention != s2->call_convention)
4664 if (s1->sentinelpos != s2->sentinelpos)
4666 if (s1->hasthis != s2->hasthis)
4668 if (s1->explicit_this != s2->explicit_this)
4670 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4672 if (s1->param_count != s2->param_count)
4676 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4677 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4679 if (t1 == NULL || t2 == NULL)
4681 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4687 * mono_metadata_type_equal:
4691 * Determine if @t1 and @t2 represent the same type.
4692 * Returns: #TRUE if @t1 and @t2 are equal.
4695 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4697 if (t1->type != t2->type || t1->byref != t2->byref)
4701 case MONO_TYPE_VOID:
4702 case MONO_TYPE_BOOLEAN:
4703 case MONO_TYPE_CHAR:
4714 case MONO_TYPE_STRING:
4717 case MONO_TYPE_OBJECT:
4718 case MONO_TYPE_TYPEDBYREF:
4720 case MONO_TYPE_VALUETYPE:
4721 case MONO_TYPE_CLASS:
4722 case MONO_TYPE_SZARRAY:
4723 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4725 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4726 case MONO_TYPE_ARRAY:
4727 if (t1->data.array->rank != t2->data.array->rank)
4729 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4730 case MONO_TYPE_GENERICINST:
4731 return _mono_metadata_generic_class_equal (
4732 t1->data.generic_class, t2->data.generic_class, signature_only);
4734 return mono_metadata_generic_param_equal (
4735 t1->data.generic_param, t2->data.generic_param, signature_only);
4736 case MONO_TYPE_MVAR:
4737 return mono_metadata_generic_param_equal (
4738 t1->data.generic_param, t2->data.generic_param, signature_only);
4739 case MONO_TYPE_FNPTR:
4740 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4742 g_error ("implement type compare for %0x!", t1->type);
4750 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
4752 return do_mono_metadata_type_equal (t1, t2, FALSE);
4756 * mono_metadata_type_equal_full:
4759 * @signature_only: if signature only comparison should be made
4761 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
4762 * behaves the same way as mono_metadata_type_equal.
4763 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
4764 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
4767 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
4769 return do_mono_metadata_type_equal (t1, t2, signature_only);
4773 * mono_metadata_signature_equal:
4774 * @sig1: a signature
4775 * @sig2: another signature
4777 * Determine if @sig1 and @sig2 represent the same signature, with the
4778 * same number of arguments and the same types.
4779 * Returns: #TRUE if @sig1 and @sig2 are equal.
4782 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4786 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4789 if (sig1->generic_param_count != sig2->generic_param_count)
4793 * We're just comparing the signatures of two methods here:
4795 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4796 * U and V are equal here.
4798 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4801 for (i = 0; i < sig1->param_count; i++) {
4802 MonoType *p1 = sig1->params[i];
4803 MonoType *p2 = sig2->params[i];
4805 /* if (p1->attrs != p2->attrs)
4808 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4812 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4818 * mono_metadata_type_dup:
4819 * @image: image to alloc memory from
4820 * @original: type to duplicate
4822 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
4825 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
4828 int sizeof_o = MONO_SIZEOF_TYPE;
4830 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
4832 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
4834 memcpy (r, o, sizeof_o);
4836 if (o->type == MONO_TYPE_PTR) {
4837 r->data.type = mono_metadata_type_dup (image, o->data.type);
4838 } else if (o->type == MONO_TYPE_ARRAY) {
4839 r->data.array = mono_dup_array_type (image, o->data.array);
4840 } else if (o->type == MONO_TYPE_FNPTR) {
4841 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
4842 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
4848 mono_signature_hash (MonoMethodSignature *sig)
4850 guint i, res = sig->ret->type;
4852 for (i = 0; i < sig->param_count; i++)
4853 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4859 * mono_metadata_encode_value:
4860 * @value: value to encode
4861 * @buf: buffer where to write the compressed representation
4862 * @endbuf: pointer updated to point at the end of the encoded output
4864 * Encodes the value @value in the compressed representation used
4865 * in metadata and stores the result in @buf. @buf needs to be big
4866 * enough to hold the data (4 bytes).
4869 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4875 else if (value < 0x4000) {
4876 p [0] = 0x80 | (value >> 8);
4877 p [1] = value & 0xff;
4880 p [0] = (value >> 24) | 0xc0;
4881 p [1] = (value >> 16) & 0xff;
4882 p [2] = (value >> 8) & 0xff;
4883 p [3] = value & 0xff;
4891 * mono_metadata_field_info:
4892 * @meta: the Image the field is defined in
4893 * @index: the index in the field table representing the field
4894 * @offset: a pointer to an integer where to store the offset that
4895 * may have been specified for the field in a FieldLayout table
4896 * @rva: a pointer to the RVA of the field data in the image that
4897 * may have been defined in a FieldRVA table
4898 * @marshal_spec: a pointer to the marshal spec that may have been
4899 * defined for the field in a FieldMarshal table.
4901 * Gather info for field @index that may have been defined in the FieldLayout,
4902 * FieldRVA and FieldMarshal tables.
4903 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4907 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4908 MonoMarshalSpec **marshal_spec)
4910 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
4914 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4915 MonoMarshalSpec **marshal_spec)
4917 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
4921 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4922 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
4924 MonoTableInfo *tdef;
4927 loc.idx = index + 1;
4928 if (meta->uncompressed_metadata)
4929 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4932 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4934 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4937 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4938 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4940 *offset = (guint32)-1;
4944 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4946 loc.col_idx = MONO_FIELD_RVA_FIELD;
4949 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4951 * LAMESPEC: There is no signature, no nothing, just the raw data.
4953 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4961 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4962 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, p);
4969 * mono_metadata_get_constant_index:
4970 * @meta: the Image the field is defined in
4971 * @index: the token that may have a row defined in the constants table
4972 * @hint: possible position for the row
4974 * @token must be a FieldDef, ParamDef or PropertyDef token.
4976 * Returns: the index into the Constants table or 0 if not found.
4979 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4981 MonoTableInfo *tdef;
4983 guint32 index = mono_metadata_token_index (token);
4985 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4986 index <<= MONO_HASCONSTANT_BITS;
4987 switch (mono_metadata_token_table (token)) {
4988 case MONO_TABLE_FIELD:
4989 index |= MONO_HASCONSTANT_FIEDDEF;
4991 case MONO_TABLE_PARAM:
4992 index |= MONO_HASCONSTANT_PARAM;
4994 case MONO_TABLE_PROPERTY:
4995 index |= MONO_HASCONSTANT_PROPERTY;
4998 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5002 loc.col_idx = MONO_CONSTANT_PARENT;
5005 /* FIXME: Index translation */
5007 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5010 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5011 return loc.result + 1;
5017 * mono_metadata_events_from_typedef:
5018 * @meta: metadata context
5019 * @index: 0-based index (in the TypeDef table) describing a type
5021 * Returns: the 0-based index in the Event table for the events in the
5022 * type. The last event that belongs to the type (plus 1) is stored
5023 * in the @end_idx pointer.
5026 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5030 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5038 loc.col_idx = MONO_EVENT_MAP_PARENT;
5039 loc.idx = index + 1;
5041 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5044 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5045 if (loc.result + 1 < tdef->rows) {
5046 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5048 end = meta->tables [MONO_TABLE_EVENT].rows;
5056 * mono_metadata_methods_from_event:
5057 * @meta: metadata context
5058 * @index: 0-based index (in the Event table) describing a event
5060 * Returns: the 0-based index in the MethodDef table for the methods in the
5061 * event. The last method that belongs to the event (plus 1) is stored
5062 * in the @end_idx pointer.
5065 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5069 guint32 cols [MONO_METHOD_SEMA_SIZE];
5070 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5076 if (meta->uncompressed_metadata)
5077 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5080 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5081 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5083 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5088 * We may end up in the middle of the rows...
5091 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5097 while (end < msemt->rows) {
5098 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5099 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5108 * mono_metadata_properties_from_typedef:
5109 * @meta: metadata context
5110 * @index: 0-based index (in the TypeDef table) describing a type
5112 * Returns: the 0-based index in the Property table for the properties in the
5113 * type. The last property that belongs to the type (plus 1) is stored
5114 * in the @end_idx pointer.
5117 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5121 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5129 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5130 loc.idx = index + 1;
5132 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5135 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5136 if (loc.result + 1 < tdef->rows) {
5137 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5139 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5147 * mono_metadata_methods_from_property:
5148 * @meta: metadata context
5149 * @index: 0-based index (in the PropertyDef table) describing a property
5151 * Returns: the 0-based index in the MethodDef table for the methods in the
5152 * property. The last method that belongs to the property (plus 1) is stored
5153 * in the @end_idx pointer.
5156 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5160 guint32 cols [MONO_METHOD_SEMA_SIZE];
5161 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5167 if (meta->uncompressed_metadata)
5168 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5171 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5172 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5174 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5179 * We may end up in the middle of the rows...
5182 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5188 while (end < msemt->rows) {
5189 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5190 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5199 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5202 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5207 /* No index translation seems to be needed */
5210 loc.col_idx = MONO_IMPLMAP_MEMBER;
5211 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5213 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5216 return loc.result + 1;
5220 * @image: context where the image is created
5221 * @type_spec: typespec token
5223 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5227 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5229 guint32 idx = mono_metadata_token_index (type_spec);
5231 guint32 cols [MONO_TYPESPEC_SIZE];
5234 MonoType *type, *type2;
5236 mono_loader_lock ();
5238 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5240 mono_loader_unlock ();
5244 t = &image->tables [MONO_TABLE_TYPESPEC];
5246 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5247 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5249 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5250 mono_loader_unlock ();
5254 len = mono_metadata_decode_value (ptr, &ptr);
5256 type = mono_metadata_parse_type_internal (image, NULL, MONO_PARSE_TYPE, 0, TRUE, ptr, &ptr);
5258 mono_loader_unlock ();
5262 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5265 mono_loader_unlock ();
5269 type2 = mono_metadata_type_dup (image, type);
5270 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5271 mono_metadata_free_type (type);
5273 mono_loader_unlock ();
5280 mono_image_strndup (MonoImage *image, const char *data, guint len)
5284 return g_strndup (data, len);
5285 res = mono_image_alloc (image, len + 1);
5286 memcpy (res, data, len);
5292 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5294 return mono_metadata_parse_marshal_spec_full (NULL, ptr);
5298 mono_metadata_parse_marshal_spec_full (MonoImage *image, const char *ptr)
5300 MonoMarshalSpec *res;
5302 const char *start = ptr;
5304 /* fixme: this is incomplete, but I cant find more infos in the specs */
5307 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5309 res = g_new0 (MonoMarshalSpec, 1);
5311 len = mono_metadata_decode_value (ptr, &ptr);
5312 res->native = *ptr++;
5314 if (res->native == MONO_NATIVE_LPARRAY) {
5315 res->data.array_data.param_num = -1;
5316 res->data.array_data.num_elem = -1;
5317 res->data.array_data.elem_mult = -1;
5319 if (ptr - start <= len)
5320 res->data.array_data.elem_type = *ptr++;
5321 if (ptr - start <= len)
5322 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5323 if (ptr - start <= len)
5324 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5325 if (ptr - start <= len) {
5327 * LAMESPEC: Older spec versions say this parameter comes before
5328 * num_elem. Never spec versions don't talk about elem_mult at
5329 * all, but csc still emits it, and it is used to distinguish
5330 * between param_num being 0, and param_num being omitted.
5331 * So if (param_num == 0) && (num_elem > 0), then
5332 * elem_mult == 0 -> the array size is num_elem
5333 * elem_mult == 1 -> the array size is @param_num + num_elem
5335 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5339 if (res->native == MONO_NATIVE_BYVALTSTR) {
5340 if (ptr - start <= len)
5341 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5344 if (res->native == MONO_NATIVE_BYVALARRAY) {
5345 if (ptr - start <= len)
5346 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5349 if (res->native == MONO_NATIVE_CUSTOM) {
5350 /* skip unused type guid */
5351 len = mono_metadata_decode_value (ptr, &ptr);
5353 /* skip unused native type name */
5354 len = mono_metadata_decode_value (ptr, &ptr);
5356 /* read custom marshaler type name */
5357 len = mono_metadata_decode_value (ptr, &ptr);
5358 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5360 /* read cookie string */
5361 len = mono_metadata_decode_value (ptr, &ptr);
5362 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5365 if (res->native == MONO_NATIVE_SAFEARRAY) {
5366 res->data.safearray_data.elem_type = 0;
5367 res->data.safearray_data.num_elem = 0;
5368 if (ptr - start <= len)
5369 res->data.safearray_data.elem_type = *ptr++;
5370 if (ptr - start <= len)
5371 res->data.safearray_data.num_elem = *ptr++;
5377 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5379 if (spec->native == MONO_NATIVE_CUSTOM) {
5380 g_free (spec->data.custom_data.custom_name);
5381 g_free (spec->data.custom_data.cookie);
5387 * mono_type_to_unmanaged:
5389 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5390 * describing the underlying native reprensetation of the type.
5392 * In addition the value pointed by
5393 * "conv" will contain the kind of marshalling required for this
5394 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5397 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5398 gboolean unicode, MonoMarshalConv *conv)
5400 MonoMarshalConv dummy_conv;
5406 *conv = MONO_MARSHAL_CONV_NONE;
5409 return MONO_NATIVE_UINT;
5413 case MONO_TYPE_BOOLEAN:
5415 switch (mspec->native) {
5416 case MONO_NATIVE_VARIANTBOOL:
5417 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5418 return MONO_NATIVE_VARIANTBOOL;
5419 case MONO_NATIVE_BOOLEAN:
5420 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5421 return MONO_NATIVE_BOOLEAN;
5422 case MONO_NATIVE_I1:
5423 case MONO_NATIVE_U1:
5424 return mspec->native;
5426 g_error ("cant marshal bool to native type %02x", mspec->native);
5429 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5430 return MONO_NATIVE_BOOLEAN;
5431 case MONO_TYPE_CHAR:
5433 switch (mspec->native) {
5434 case MONO_NATIVE_U2:
5435 case MONO_NATIVE_U1:
5436 return mspec->native;
5438 g_error ("cant marshal char to native type %02x", mspec->native);
5441 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5442 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5443 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5444 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5445 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5446 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5447 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5448 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5449 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5450 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5451 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5452 case MONO_TYPE_STRING:
5454 switch (mspec->native) {
5455 case MONO_NATIVE_BSTR:
5456 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5457 return MONO_NATIVE_BSTR;
5458 case MONO_NATIVE_LPSTR:
5459 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5460 return MONO_NATIVE_LPSTR;
5461 case MONO_NATIVE_LPWSTR:
5462 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5463 return MONO_NATIVE_LPWSTR;
5464 case MONO_NATIVE_LPTSTR:
5465 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5466 return MONO_NATIVE_LPTSTR;
5467 case MONO_NATIVE_ANSIBSTR:
5468 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5469 return MONO_NATIVE_ANSIBSTR;
5470 case MONO_NATIVE_TBSTR:
5471 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5472 return MONO_NATIVE_TBSTR;
5473 case MONO_NATIVE_BYVALTSTR:
5475 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5477 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5478 return MONO_NATIVE_BYVALTSTR;
5480 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);
5484 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5485 return MONO_NATIVE_LPWSTR;
5488 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5489 return MONO_NATIVE_LPSTR;
5491 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5492 case MONO_TYPE_VALUETYPE: /*FIXME*/
5493 if (type->data.klass->enumtype) {
5494 t = mono_class_enum_basetype (type->data.klass)->type;
5497 if (type->data.klass == mono_defaults.handleref_class){
5498 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5499 return MONO_NATIVE_INT;
5501 return MONO_NATIVE_STRUCT;
5502 case MONO_TYPE_SZARRAY:
5503 case MONO_TYPE_ARRAY:
5505 switch (mspec->native) {
5506 case MONO_NATIVE_BYVALARRAY:
5507 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5508 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5510 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5511 return MONO_NATIVE_BYVALARRAY;
5512 case MONO_NATIVE_SAFEARRAY:
5513 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5514 return MONO_NATIVE_SAFEARRAY;
5515 case MONO_NATIVE_LPARRAY:
5516 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5517 return MONO_NATIVE_LPARRAY;
5519 g_error ("cant marshal array as native type %02x", mspec->native);
5523 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5524 return MONO_NATIVE_LPARRAY;
5525 case MONO_TYPE_I: return MONO_NATIVE_INT;
5526 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5527 case MONO_TYPE_CLASS:
5528 case MONO_TYPE_OBJECT: {
5529 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5531 switch (mspec->native) {
5532 case MONO_NATIVE_STRUCT:
5533 return MONO_NATIVE_STRUCT;
5534 case MONO_NATIVE_CUSTOM:
5535 return MONO_NATIVE_CUSTOM;
5536 case MONO_NATIVE_INTERFACE:
5537 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5538 return MONO_NATIVE_INTERFACE;
5539 case MONO_NATIVE_IDISPATCH:
5540 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5541 return MONO_NATIVE_IDISPATCH;
5542 case MONO_NATIVE_IUNKNOWN:
5543 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5544 return MONO_NATIVE_IUNKNOWN;
5545 case MONO_NATIVE_FUNC:
5546 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5547 type->data.klass == mono_defaults.delegate_class ||
5548 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5549 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5550 return MONO_NATIVE_FUNC;
5554 g_error ("cant marshal object as native type %02x", mspec->native);
5557 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5558 type->data.klass == mono_defaults.delegate_class ||
5559 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5560 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5561 return MONO_NATIVE_FUNC;
5563 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5564 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5565 return MONO_NATIVE_INT;
5567 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5568 return MONO_NATIVE_STRUCT;
5570 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5571 case MONO_TYPE_GENERICINST:
5572 type = &type->data.generic_class->container_class->byval_arg;
5575 case MONO_TYPE_TYPEDBYREF:
5577 g_error ("type 0x%02x not handled in marshal", t);
5579 return MONO_NATIVE_MAX;
5583 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5586 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5592 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5593 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5595 /* FIXME: Index translation */
5597 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5600 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5604 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
5606 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5608 switch (tok & MONO_METHODDEFORREF_MASK) {
5609 case MONO_METHODDEFORREF_METHODDEF:
5610 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
5611 case MONO_METHODDEFORREF_METHODREF:
5612 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
5614 g_assert_not_reached ();
5619 * mono_class_get_overrides_full:
5621 * Return the method overrides belonging to class @type_token in @overrides, and
5622 * the number of overrides in @num_overrides.
5624 * Returns: TRUE on success, FALSE on failure.
5627 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5628 MonoGenericContext *generic_context)
5632 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5635 guint32 cols [MONO_METHODIMPL_SIZE];
5636 MonoMethod **result;
5647 loc.col_idx = MONO_METHODIMPL_CLASS;
5648 loc.idx = mono_metadata_token_index (type_token);
5650 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5656 * We may end up in the middle of the rows...
5659 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5664 while (end < tdef->rows) {
5665 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5671 result = g_new (MonoMethod*, num * 2);
5672 for (i = 0; i < num; ++i) {
5675 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
5676 mono_error_cleanup (&error);
5681 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5682 method = method_from_method_def_or_ref (
5683 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
5686 result [i * 2] = method;
5687 method = method_from_method_def_or_ref (
5688 image, cols [MONO_METHODIMPL_BODY], generic_context);
5691 result [i * 2 + 1] = method;
5694 *overrides = result;
5696 *num_overrides = num;
5701 * mono_guid_to_string:
5703 * Converts a 16 byte Microsoft GUID to the standard string representation.
5706 mono_guid_to_string (const guint8 *guid)
5708 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5709 guid[3], guid[2], guid[1], guid[0],
5713 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
5717 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
5719 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
5720 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
5721 guint32 i, token, found;
5722 MonoClass *klass, **res;
5723 GSList *cons = NULL, *tmp;
5724 MonoGenericContext *context = &container->context;
5726 *constraints = NULL;
5728 for (i = 0; i < tdef->rows; ++i) {
5729 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
5730 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
5731 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
5732 klass = mono_class_get_full (image, token, context);
5734 g_slist_free (cons);
5737 cons = g_slist_append (cons, klass);
5740 /* contiguous list finished */
5747 res = mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
5748 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
5749 res [i] = tmp->data;
5751 g_slist_free (cons);
5757 * mono_metadata_get_generic_param_row:
5760 * @token: TypeOrMethodDef token, owner for GenericParam
5761 * @owner: coded token, set on return
5763 * Returns: 1-based row-id in the GenericParam table whose
5764 * owner is @token. 0 if not found.
5767 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
5769 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5776 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
5777 *owner = MONO_TYPEORMETHOD_TYPE;
5778 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5779 *owner = MONO_TYPEORMETHOD_METHOD;
5781 g_error ("wrong token %x to get_generic_param_row", token);
5784 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
5787 loc.col_idx = MONO_GENERICPARAM_OWNER;
5790 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5793 /* Find the first entry by searching backwards */
5794 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
5797 return loc.result + 1;
5801 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
5804 return mono_metadata_get_generic_param_row (image, token, &owner);
5808 * Memory is allocated from IMAGE's mempool.
5811 mono_metadata_load_generic_param_constraints_full (MonoImage *image, guint32 token,
5812 MonoGenericContainer *container)
5815 guint32 start_row, i, owner;
5816 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
5818 for (i = 0; i < container->type_argc; i++) {
5819 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container))
5826 * mono_metadata_load_generic_param_constraints:
5828 * @image: metadata context
5829 * @token: metadata token to load the contraints, can be methodef or typedef.
5830 * @container: generic container to load into.
5832 * Load the generic parameter constraints for the newly created generic type or method
5833 * represented by @token and @container. The @container is the new container which has
5834 * been returned by a call to mono_metadata_load_generic_params() with this @token.
5835 * Memory is allocated from IMAGE's mempool.
5838 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
5839 MonoGenericContainer *container)
5841 mono_metadata_load_generic_param_constraints_full (image, token, container);
5842 /*FIXME this function can potentially exit with a pending loader error and cause all sort of havok */
5846 * mono_metadata_load_generic_params:
5848 * Load the type parameters from the type or method definition @token.
5850 * Use this method after parsing a type or method definition to figure out whether it's a generic
5851 * type / method. When parsing a method definition, @parent_container points to the generic container
5852 * of the current class, if any.
5854 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
5855 * creating the type.
5857 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
5859 * LOCKING: Acquires the loader lock
5862 MonoGenericContainer *
5863 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
5865 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5866 guint32 cols [MONO_GENERICPARAM_SIZE];
5867 guint32 i, owner = 0, n;
5868 MonoGenericContainer *container;
5869 MonoGenericParamFull *params;
5870 MonoGenericContext *context;
5872 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
5874 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5877 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
5878 container->image = image;
5881 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
5882 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
5883 params [n - 1].param.owner = container;
5884 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
5885 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
5886 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
5887 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
5888 if (params [n - 1].param.num != n - 1)
5889 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
5890 if (++i > tdef->rows)
5892 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5893 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5895 container->type_argc = n;
5896 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
5897 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
5899 container->parent = parent_container;
5901 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5902 container->is_method = 1;
5904 g_assert (container->parent == NULL || container->is_method);
5906 context = &container->context;
5907 if (container->is_method) {
5908 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5909 context->method_inst = mono_get_shared_generic_inst (container);
5911 context->class_inst = mono_get_shared_generic_inst (container);
5918 mono_get_shared_generic_inst (MonoGenericContainer *container)
5920 MonoType **type_argv;
5922 MonoGenericInst *nginst;
5925 type_argv = g_new0 (MonoType *, container->type_argc);
5926 helper = g_new0 (MonoType, container->type_argc);
5928 for (i = 0; i < container->type_argc; i++) {
5929 MonoType *t = &helper [i];
5931 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5932 t->data.generic_param = mono_generic_container_get_param (container, i);
5937 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5946 * mono_type_is_byref:
5947 * @type: the MonoType operated on
5949 * Returns: #TRUE if @type represents a type passed by reference,
5953 mono_type_is_byref (MonoType *type)
5959 * mono_type_get_type:
5960 * @type: the MonoType operated on
5962 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
5963 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
5966 mono_type_get_type (MonoType *type)
5972 * mono_type_get_signature:
5973 * @type: the MonoType operated on
5975 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
5977 * Returns: the MonoMethodSignature pointer that describes the signature
5978 * of the function pointer @type represents.
5980 MonoMethodSignature*
5981 mono_type_get_signature (MonoType *type)
5983 g_assert (type->type == MONO_TYPE_FNPTR);
5984 return type->data.method;
5988 * mono_type_get_class:
5989 * @type: the MonoType operated on
5991 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
5992 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
5995 * Returns: the MonoClass pointer that describes the class that @type represents.
5998 mono_type_get_class (MonoType *type)
6000 /* FIXME: review the runtime users before adding the assert here */
6001 return type->data.klass;
6005 * mono_type_get_array_type:
6006 * @type: the MonoType operated on
6008 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6010 * Returns: a MonoArrayType struct describing the array type that @type
6011 * represents. The info includes details such as rank, array element type
6012 * and the sizes and bounds of multidimensional arrays.
6015 mono_type_get_array_type (MonoType *type)
6017 return type->data.array;
6021 * mono_type_get_ptr_type:
6022 * @type: the MonoType operated on
6024 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6027 * Returns: the MonoType pointer that describes the type that @type
6028 * represents a pointer to.
6031 mono_type_get_ptr_type (MonoType *type)
6033 g_assert (type->type == MONO_TYPE_PTR);
6034 return type->data.type;
6038 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6040 /* FIXME: implement */
6045 * mono_type_is_struct:
6046 * @type: the MonoType operated on
6048 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6049 * or a basic type like System.Int32. #FALSE otherwise.
6052 mono_type_is_struct (MonoType *type)
6054 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6055 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6056 ((type->type == MONO_TYPE_GENERICINST) &&
6057 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6058 !type->data.generic_class->container_class->enumtype)));
6062 * mono_type_is_void:
6063 * @type: the MonoType operated on
6065 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6068 mono_type_is_void (MonoType *type)
6070 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6074 * mono_type_is_pointer:
6075 * @type: the MonoType operated on
6077 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6080 mono_type_is_pointer (MonoType *type)
6082 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6083 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6084 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6085 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6086 (type->type == MONO_TYPE_FNPTR)));
6090 * mono_type_is_reference:
6091 * @type: the MonoType operated on
6093 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6096 mono_type_is_reference (MonoType *type)
6098 return (type && (((type->type == MONO_TYPE_STRING) ||
6099 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6100 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6101 ((type->type == MONO_TYPE_GENERICINST) &&
6102 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6106 * mono_signature_get_return_type:
6107 * @sig: the method signature inspected
6109 * Returns: the return type of the method signature @sig
6112 mono_signature_get_return_type (MonoMethodSignature *sig)
6118 * mono_signature_get_params:
6119 * @sig: the method signature inspected
6120 * #iter: pointer to an iterator
6122 * Iterates over the parameters for the method signature @sig.
6123 * A void* pointer must be initualized to #NULL to start the iteration
6124 * and it's address is passed to this function repeteadly until it returns
6127 * Returns: the next parameter type of the method signature @sig,
6128 * #NULL when finished.
6131 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6137 /* start from the first */
6138 if (sig->param_count) {
6139 *iter = &sig->params [0];
6140 return sig->params [0];
6148 if (type < &sig->params [sig->param_count]) {
6156 * mono_signature_get_param_count:
6157 * @sig: the method signature inspected
6159 * Returns: the number of parameters in the method signature @sig.
6162 mono_signature_get_param_count (MonoMethodSignature *sig)
6164 return sig->param_count;
6168 * mono_signature_get_call_conv:
6169 * @sig: the method signature inspected
6171 * Returns: the call convention of the method signature @sig.
6174 mono_signature_get_call_conv (MonoMethodSignature *sig)
6176 return sig->call_convention;
6180 * mono_signature_vararg_start:
6181 * @sig: the method signature inspected
6183 * Returns: the number of the first vararg parameter in the
6184 * method signature @sig. -1 if this is not a vararg signature.
6187 mono_signature_vararg_start (MonoMethodSignature *sig)
6189 return sig->sentinelpos;
6193 * mono_signature_is_instance:
6194 * @sig: the method signature inspected
6196 * Returns: #TRUE if this the method signature @sig has an implicit
6197 * first instance argument. #FALSE otherwise.
6200 mono_signature_is_instance (MonoMethodSignature *sig)
6202 return sig->hasthis;
6206 * mono_signature_explicit_this:
6207 * @sig: the method signature inspected
6209 * Returns: #TRUE if this the method signature @sig has an explicit
6210 * instance argument. #FALSE otherwise.
6213 mono_signature_explicit_this (MonoMethodSignature *sig)
6215 return sig->explicit_this;
6218 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6220 mono_aligned_addr_hash (gconstpointer ptr)
6222 return GPOINTER_TO_UINT (ptr) >> 3;
6226 * If @field belongs to an inflated generic class, return the corresponding field of the
6227 * generic type definition class.
6230 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6235 if (!field->parent->generic_class)
6238 gtd = field->parent->generic_class->container_class;
6239 offset = field - field->parent->fields;
6240 return gtd->fields + offset;
6244 * If @event belongs to an inflated generic class, return the corresponding event of the
6245 * generic type definition class.
6248 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6253 if (!event->parent->generic_class)
6256 gtd = event->parent->generic_class->container_class;
6257 offset = event - event->parent->ext->events;
6258 return gtd->ext->events + offset;
6262 * If @property belongs to an inflated generic class, return the corresponding property of the
6263 * generic type definition class.
6266 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6271 if (!property->parent->generic_class)
6274 gtd = property->parent->generic_class->container_class;
6275 offset = property - property->parent->ext->properties;
6276 return gtd->ext->properties + offset;