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)
10 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
19 #include "tabledefs.h"
20 #include "mono-endian.h"
22 #include "tokentype.h"
23 #include "class-internals.h"
24 #include "metadata-internals.h"
25 #include "verify-internals.h"
28 #include "debug-helpers.h"
29 #include "abi-details.h"
30 #include <mono/utils/mono-error-internals.h>
31 #include <mono/utils/bsearch.h>
32 #include <mono/utils/atomic.h>
34 /* Auxiliary structure used for caching inflated signatures */
36 MonoMethodSignature *sig;
37 MonoGenericContext context;
38 } MonoInflatedMethodSignature;
40 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container, gboolean transient,
41 const char *ptr, const char **rptr, MonoError *error);
43 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
44 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
45 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
46 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
47 gboolean signature_only);
48 static void free_generic_inst (MonoGenericInst *ginst);
49 static void free_generic_class (MonoGenericClass *ginst);
50 static void free_inflated_method (MonoMethodInflated *method);
51 static void free_inflated_signature (MonoInflatedMethodSignature *sig);
52 static void mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva, MonoMarshalSpec **marshal_spec, gboolean alloc_from_image);
55 * This enumeration is used to describe the data types in the metadata
66 /* Index into Blob heap */
69 /* Index into String heap */
75 /* Pointer into a table */
78 /* HasConstant:Parent pointer (Param, Field or Property) */
81 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
84 /* CustomAttributeType encoded index */
87 /* HasDeclSecurity index: TypeDef Method or Assembly */
90 /* Implementation coded index: File, Export AssemblyRef */
93 /* HasFieldMarshal coded index: Field or Param table */
96 /* MemberForwardedIndex: Field or Method */
99 /* TypeDefOrRef coded index: typedef, typeref, typespec */
102 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
105 /* MethodDefOrRef coded index: Method or Member Ref table */
108 /* HasSemantic coded index: Event or Property */
111 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
115 const static unsigned char TableSchemas [] = {
116 #define ASSEMBLY_SCHEMA_OFFSET 0
117 MONO_MT_UINT32, /* "HashId" }, */
118 MONO_MT_UINT16, /* "Major" }, */
119 MONO_MT_UINT16, /* "Minor" }, */
120 MONO_MT_UINT16, /* "BuildNumber" }, */
121 MONO_MT_UINT16, /* "RevisionNumber" }, */
122 MONO_MT_UINT32, /* "Flags" }, */
123 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
124 MONO_MT_STRING_IDX, /* "Name" }, */
125 MONO_MT_STRING_IDX, /* "Culture" }, */
128 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
129 MONO_MT_UINT32, /* "OSPlatformID" }, */
130 MONO_MT_UINT32, /* "OSMajor" }, */
131 MONO_MT_UINT32, /* "OSMinor" }, */
134 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
135 MONO_MT_UINT32, /* "Processor" }, */
138 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
139 MONO_MT_UINT16, /* "Major" }, */
140 MONO_MT_UINT16, /* "Minor" }, */
141 MONO_MT_UINT16, /* "Build" }, */
142 MONO_MT_UINT16, /* "Revision" }, */
143 MONO_MT_UINT32, /* "Flags" }, */
144 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
145 MONO_MT_STRING_IDX, /* "Name" }, */
146 MONO_MT_STRING_IDX, /* "Culture" }, */
147 MONO_MT_BLOB_IDX, /* "HashValue" }, */
150 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
151 MONO_MT_UINT32, /* "OSPlatformID" }, */
152 MONO_MT_UINT32, /* "OSMajorVersion" }, */
153 MONO_MT_UINT32, /* "OSMinorVersion" }, */
154 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
157 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
158 MONO_MT_UINT32, /* "Processor" }, */
159 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
162 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
163 MONO_MT_UINT16, /* "PackingSize" }, */
164 MONO_MT_UINT32, /* "ClassSize" }, */
165 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
168 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
169 MONO_MT_UINT8, /* "Type" }, */
170 MONO_MT_UINT8, /* "PaddingZero" }, */
171 MONO_MT_CONST_IDX, /* "Parent" }, */
172 MONO_MT_BLOB_IDX, /* "Value" }, */
175 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
176 MONO_MT_HASCAT_IDX, /* "Parent" }, */
177 MONO_MT_CAT_IDX, /* "Type" }, */
178 MONO_MT_BLOB_IDX, /* "Value" }, */
181 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
182 MONO_MT_UINT16, /* "Action" }, */
183 MONO_MT_HASDEC_IDX, /* "Parent" }, */
184 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
187 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
188 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
189 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
192 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
193 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
194 MONO_MT_STRING_IDX, /* "Name" }, */
195 MONO_MT_TDOR_IDX, /* "EventType" }, TypeDef or TypeRef or TypeSpec */
198 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
199 MONO_MT_TABLE_IDX, /* "Event" }, */
202 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
203 MONO_MT_UINT32, /* "Flags" }, */
204 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
205 MONO_MT_STRING_IDX, /* "TypeName" }, */
206 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
207 MONO_MT_IMPL_IDX, /* "Implementation" }, */
210 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
211 MONO_MT_UINT16, /* "Flags" }, */
212 MONO_MT_STRING_IDX, /* "Name" }, */
213 MONO_MT_BLOB_IDX, /* "Signature" }, */
216 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
217 MONO_MT_UINT32, /* "Offset" }, */
218 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
221 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
222 MONO_MT_HFM_IDX, /* "Parent" }, */
223 MONO_MT_BLOB_IDX, /* "NativeType" }, */
226 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
227 MONO_MT_UINT32, /* "RVA" }, */
228 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
231 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
232 MONO_MT_TABLE_IDX, /* "Field" }, */
235 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
236 MONO_MT_UINT32, /* "Flags" }, */
237 MONO_MT_STRING_IDX, /* "Name" }, */
238 MONO_MT_BLOB_IDX, /* "Value" }, */
241 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
242 MONO_MT_UINT16, /* "MappingFlag" }, */
243 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
244 MONO_MT_STRING_IDX, /* "ImportName" }, */
245 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
248 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
249 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
250 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
253 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
254 MONO_MT_UINT32, /* "Offset" }, */
255 MONO_MT_UINT32, /* "Flags" }, */
256 MONO_MT_STRING_IDX, /* "Name" }, */
257 MONO_MT_IMPL_IDX, /* "Implementation" }, */
260 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
261 MONO_MT_MRP_IDX, /* "Class" }, */
262 MONO_MT_STRING_IDX, /* "Name" }, */
263 MONO_MT_BLOB_IDX, /* "Signature" }, */
266 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
267 MONO_MT_UINT32, /* "RVA" }, */
268 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
269 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
270 MONO_MT_STRING_IDX, /* "Name" }, */
271 MONO_MT_BLOB_IDX, /* "Signature" }, */
272 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
275 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
276 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
277 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
278 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
281 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
282 MONO_MT_UINT16, /* "MethodSemantic" }, */
283 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
284 MONO_MT_HS_IDX, /* "Association" }, */
287 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
288 MONO_MT_TABLE_IDX, /* "Method" }, */
291 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
292 MONO_MT_UINT16, /* "Generation" }, */
293 MONO_MT_STRING_IDX, /* "Name" }, */
294 MONO_MT_GUID_IDX, /* "MVID" }, */
295 MONO_MT_GUID_IDX, /* "EncID" }, */
296 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
299 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
300 MONO_MT_STRING_IDX, /* "Name" }, */
303 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
304 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
305 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
308 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
309 MONO_MT_UINT16, /* "Flags" }, */
310 MONO_MT_UINT16, /* "Sequence" }, */
311 MONO_MT_STRING_IDX, /* "Name" }, */
314 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
315 MONO_MT_TABLE_IDX, /* "Param" }, */
318 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
319 MONO_MT_UINT16, /* "Flags" }, */
320 MONO_MT_STRING_IDX, /* "Name" }, */
321 MONO_MT_BLOB_IDX, /* "Type" }, */
324 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
325 MONO_MT_TABLE_IDX, /* "Property" }, */
328 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
329 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
330 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
333 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
334 MONO_MT_BLOB_IDX, /* "Signature" }, */
337 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
338 MONO_MT_UINT32, /* "Flags" }, */
339 MONO_MT_STRING_IDX, /* "Name" }, */
340 MONO_MT_STRING_IDX, /* "Namespace" }, */
341 MONO_MT_TDOR_IDX, /* "Extends" }, */
342 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
343 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
346 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
347 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
348 MONO_MT_STRING_IDX, /* "Name" }, */
349 MONO_MT_STRING_IDX, /* "Namespace" }, */
352 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
353 MONO_MT_BLOB_IDX, /* "Signature" }, */
356 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
357 MONO_MT_UINT16, /* "Number" }, */
358 MONO_MT_UINT16, /* "Flags" }, */
359 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
360 MONO_MT_STRING_IDX, /* "Name" }, */
363 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
364 MONO_MT_MDOR_IDX, /* "Method" }, */
365 MONO_MT_BLOB_IDX, /* "Signature" }, */
368 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
369 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
370 MONO_MT_TDOR_IDX, /* "Constraint" }, */
373 #define DOCUMENT_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
374 MONO_MT_BLOB_IDX, /* Name */
375 MONO_MT_GUID_IDX, /* HashAlgorithm */
376 MONO_MT_BLOB_IDX, /* Hash */
377 MONO_MT_GUID_IDX, /* Language */
380 #define METHODBODY_SCHEMA_OFFSET DOCUMENT_SCHEMA_OFFSET + 5
381 MONO_MT_TABLE_IDX, /* Document */
382 MONO_MT_BLOB_IDX, /* SequencePoints */
385 #define LOCALSCOPE_SCHEMA_OFFSET METHODBODY_SCHEMA_OFFSET + 3
386 MONO_MT_TABLE_IDX, /* Method */
387 MONO_MT_TABLE_IDX, /* ImportScope */
388 MONO_MT_TABLE_IDX, /* VariableList */
389 MONO_MT_TABLE_IDX, /* ConstantList */
390 MONO_MT_UINT32, /* StartOffset */
391 MONO_MT_UINT32, /* Length */
394 #define LOCALVARIABLE_SCHEMA_OFFSET LOCALSCOPE_SCHEMA_OFFSET + 7
395 MONO_MT_UINT16, /* Attributes */
396 MONO_MT_UINT16, /* Index */
397 MONO_MT_STRING_IDX, /* Name */
400 #define NULL_SCHEMA_OFFSET LOCALVARIABLE_SCHEMA_OFFSET + 4
404 /* Must be the same order as MONO_TABLE_* */
405 const static unsigned char
406 table_description [] = {
407 MODULE_SCHEMA_OFFSET,
408 TYPEREF_SCHEMA_OFFSET,
409 TYPEDEF_SCHEMA_OFFSET,
410 FIELD_POINTER_SCHEMA_OFFSET,
412 METHOD_POINTER_SCHEMA_OFFSET,
413 METHOD_SCHEMA_OFFSET,
414 PARAM_POINTER_SCHEMA_OFFSET,
416 IFACEMAP_SCHEMA_OFFSET,
417 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
418 CONSTANT_SCHEMA_OFFSET,
419 CUSTOM_ATTR_SCHEMA_OFFSET,
420 FIELD_MARSHAL_SCHEMA_OFFSET,
421 DECL_SEC_SCHEMA_OFFSET,
422 CLASS_LAYOUT_SCHEMA_OFFSET,
423 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
424 STDALON_SIG_SCHEMA_OFFSET,
425 EVENTMAP_SCHEMA_OFFSET,
426 EVENT_POINTER_SCHEMA_OFFSET,
428 PROPERTY_MAP_SCHEMA_OFFSET,
429 PROPERTY_POINTER_SCHEMA_OFFSET,
430 PROPERTY_SCHEMA_OFFSET,
431 METHOD_SEMA_SCHEMA_OFFSET,
432 METHOD_IMPL_SCHEMA_OFFSET,
433 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
434 TYPESPEC_SCHEMA_OFFSET,
435 IMPLMAP_SCHEMA_OFFSET,
436 FIELD_RVA_SCHEMA_OFFSET,
439 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
440 ASSEMBLYPROC_SCHEMA_OFFSET,
441 ASSEMBLYOS_SCHEMA_OFFSET,
442 ASSEMBLYREF_SCHEMA_OFFSET,
443 ASSEMBLYREFPROC_SCHEMA_OFFSET,
444 ASSEMBLYREFOS_SCHEMA_OFFSET,
446 EXPORTED_TYPE_SCHEMA_OFFSET,
447 MANIFEST_SCHEMA_OFFSET,
448 NESTED_CLASS_SCHEMA_OFFSET,
449 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
450 METHOD_SPEC_SCHEMA_OFFSET,
451 GEN_CONSTRAINT_SCHEMA_OFFSET,
455 DOCUMENT_SCHEMA_OFFSET, /* 0x30 */
456 METHODBODY_SCHEMA_OFFSET,
457 LOCALSCOPE_SCHEMA_OFFSET,
458 LOCALVARIABLE_SCHEMA_OFFSET
461 #ifdef HAVE_ARRAY_ELEM_INIT
462 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
463 #define MSGSTRFIELD1(line) str##line
464 static const struct msgstr_t {
465 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
466 #include "mono/cil/tables.def"
469 #define TABLEDEF(a,b) b,
470 #include "mono/cil/tables.def"
473 static const gint16 tableidx [] = {
474 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
475 #include "mono/cil/tables.def"
480 #define TABLEDEF(a,b) b,
481 static const char* const
482 mono_tables_names [] = {
483 #include "mono/cil/tables.def"
489 // Amount initially reserved in each imageset's mempool.
490 // FIXME: This number is arbitrary, a more practical number should be found
491 #define INITIAL_IMAGE_SET_SIZE 1024
494 * mono_meta_table_name:
495 * @table: table index
497 * Returns the name of the given ECMA metadata logical format table
498 * as described in ECMA 335, Partition II, Section 22.
500 * Returns: the name for the @table index
503 mono_meta_table_name (int table)
505 if ((table < 0) || (table > MONO_TABLE_LAST))
508 #ifdef HAVE_ARRAY_ELEM_INIT
509 return (const char*)&tablestr + tableidx [table];
511 return mono_tables_names [table];
515 /* The guy who wrote the spec for this should not be allowed near a
518 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
519 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
520 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
521 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
522 inverse of this mapping.
525 #define rtsize(meta,s,b) (((s) < (1 << (b)) ? 2 : 4))
526 #define idx_size(meta,tableidx) ((meta)->tables [(tableidx)].rows < 65536 ? 2 : 4)
528 /* Reference: Partition II - 23.2.6 */
530 * mono_metadata_compute_size:
531 * @meta: metadata context
532 * @tableindex: metadata table number
533 * @result_bitfield: pointer to guint32 where to store additional info
535 * mono_metadata_compute_size() computes the lenght in bytes of a single
536 * row in a metadata table. The size of each column is encoded in the
537 * @result_bitfield return value along with the number of columns in the table.
538 * the resulting bitfield should be handed to the mono_metadata_table_size()
539 * and mono_metadata_table_count() macros.
540 * This is a Mono runtime internal only function.
543 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
545 guint32 bitfield = 0;
546 int size = 0, field_size = 0;
549 const unsigned char *description = TableSchemas + table_description [tableindex];
551 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
554 field_size = 4; break;
557 field_size = 2; break;
560 field_size = 1; break;
562 case MONO_MT_BLOB_IDX:
563 field_size = meta->idx_blob_wide ? 4 : 2; break;
565 case MONO_MT_STRING_IDX:
566 field_size = meta->idx_string_wide ? 4 : 2; break;
568 case MONO_MT_GUID_IDX:
569 field_size = meta->idx_guid_wide ? 4 : 2; break;
571 case MONO_MT_TABLE_IDX:
572 /* Uhm, a table index can point to other tables besides the current one
573 * so, it's not correct to use the rowcount of the current table to
574 * get the size for this column - lupus
576 switch (tableindex) {
577 case MONO_TABLE_ASSEMBLYREFOS:
579 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
580 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
582 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
583 case MONO_TABLE_CLASSLAYOUT:
585 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
586 case MONO_TABLE_EVENTMAP:
587 g_assert (i == 0 || i == 1);
588 field_size = i ? idx_size (meta, MONO_TABLE_EVENT):
589 idx_size (meta, MONO_TABLE_TYPEDEF);
591 case MONO_TABLE_EVENT_POINTER:
593 field_size = idx_size (meta, MONO_TABLE_EVENT); break;
594 case MONO_TABLE_EXPORTEDTYPE:
596 /* the index is in another metadata file, so it must be 4 */
597 field_size = 4; break;
598 case MONO_TABLE_FIELDLAYOUT:
600 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
601 case MONO_TABLE_FIELDRVA:
603 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
604 case MONO_TABLE_FIELD_POINTER:
606 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
607 case MONO_TABLE_IMPLMAP:
609 field_size = idx_size (meta, MONO_TABLE_MODULEREF); break;
610 case MONO_TABLE_INTERFACEIMPL:
612 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
613 case MONO_TABLE_METHOD:
615 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
616 case MONO_TABLE_METHODIMPL:
618 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
619 case MONO_TABLE_METHODSEMANTICS:
621 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
622 case MONO_TABLE_METHOD_POINTER:
624 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
625 case MONO_TABLE_NESTEDCLASS:
626 g_assert (i == 0 || i == 1);
627 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
628 case MONO_TABLE_PARAM_POINTER:
630 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
631 case MONO_TABLE_PROPERTYMAP:
632 g_assert (i == 0 || i == 1);
633 field_size = i ? idx_size (meta, MONO_TABLE_PROPERTY):
634 idx_size (meta, MONO_TABLE_TYPEDEF);
636 case MONO_TABLE_PROPERTY_POINTER:
638 field_size = idx_size (meta, MONO_TABLE_PROPERTY); break;
639 case MONO_TABLE_TYPEDEF:
640 g_assert (i == 4 || i == 5);
641 field_size = i == 4 ? idx_size (meta, MONO_TABLE_FIELD):
642 idx_size (meta, MONO_TABLE_METHOD);
644 case MONO_TABLE_GENERICPARAM:
646 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
647 /*This is a coded token for 2 tables, so takes 1 bit */
648 field_size = rtsize (meta, n, 16 - MONO_TYPEORMETHOD_BITS);
650 case MONO_TABLE_GENERICPARAMCONSTRAINT:
652 field_size = idx_size (meta, MONO_TABLE_GENERICPARAM);
654 case MONO_TABLE_LOCALSCOPE:
657 // FIXME: This table is in another file
658 field_size = idx_size (meta, MONO_TABLE_METHOD);
661 field_size = idx_size (meta, MONO_TABLE_IMPORTSCOPE);
664 field_size = idx_size (meta, MONO_TABLE_LOCALVARIABLE);
667 field_size = idx_size (meta, MONO_TABLE_LOCALCONSTANT);
670 g_assert_not_reached ();
674 case MONO_TABLE_METHODBODY:
676 field_size = idx_size (meta, MONO_TABLE_DOCUMENT);
679 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
684 * HasConstant: ParamDef, FieldDef, Property
686 case MONO_MT_CONST_IDX:
687 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
688 meta->tables [MONO_TABLE_FIELD].rows);
689 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
691 /* 2 bits to encode tag */
692 field_size = rtsize (meta, n, 16-2);
696 * HasCustomAttribute: points to any table but
699 case MONO_MT_HASCAT_IDX:
701 * We believe that since the signature and
702 * permission are indexing the Blob heap,
703 * we should consider the blob size first
705 /* I'm not a believer - lupus
706 if (meta->idx_blob_wide){
711 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
712 meta->tables [MONO_TABLE_FIELD].rows);
713 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
714 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
715 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
716 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
717 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
718 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
719 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
720 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
721 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
722 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
723 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
724 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
725 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
726 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
727 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
728 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
729 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
731 /* 5 bits to encode */
732 field_size = rtsize (meta, n, 16-5);
736 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
737 * MemberRef and String.
739 case MONO_MT_CAT_IDX:
740 /* String is a heap, if it is wide, we know the size */
742 if (meta->idx_string_wide){
747 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
748 meta->tables [MONO_TABLE_TYPEDEF].rows);
749 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
750 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
752 /* 3 bits to encode */
753 field_size = rtsize (meta, n, 16-3);
757 * HasDeclSecurity: Typedef, MethodDef, Assembly
759 case MONO_MT_HASDEC_IDX:
760 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
761 meta->tables [MONO_TABLE_METHOD].rows);
762 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
764 /* 2 bits to encode */
765 field_size = rtsize (meta, n, 16-2);
769 * Implementation: File, AssemblyRef, ExportedType
771 case MONO_MT_IMPL_IDX:
772 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
773 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
774 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
776 /* 2 bits to encode tag */
777 field_size = rtsize (meta, n, 16-2);
781 * HasFieldMarshall: FieldDef, ParamDef
783 case MONO_MT_HFM_IDX:
784 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
785 meta->tables [MONO_TABLE_PARAM].rows);
787 /* 1 bit used to encode tag */
788 field_size = rtsize (meta, n, 16-1);
792 * MemberForwarded: FieldDef, MethodDef
795 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
796 meta->tables [MONO_TABLE_METHOD].rows);
798 /* 1 bit used to encode tag */
799 field_size = rtsize (meta, n, 16-1);
803 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
805 * It is TypeDef, _TypeRef_, TypeSpec, instead.
807 case MONO_MT_TDOR_IDX:
808 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
809 meta->tables [MONO_TABLE_TYPEREF].rows);
810 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
812 /* 2 bits to encode */
813 field_size = rtsize (meta, n, 16-2);
817 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
819 case MONO_MT_MRP_IDX:
820 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
821 meta->tables [MONO_TABLE_TYPEREF].rows);
822 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
823 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
824 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
826 /* 3 bits to encode */
827 field_size = rtsize (meta, n, 16 - 3);
831 * MethodDefOrRef: MethodDef, MemberRef
833 case MONO_MT_MDOR_IDX:
834 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
835 meta->tables [MONO_TABLE_MEMBERREF].rows);
837 /* 1 bit used to encode tag */
838 field_size = rtsize (meta, n, 16-1);
842 * HasSemantics: Property, Event
845 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
846 meta->tables [MONO_TABLE_EVENT].rows);
848 /* 1 bit used to encode tag */
849 field_size = rtsize (meta, n, 16-1);
853 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
856 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
857 meta->tables [MONO_TABLE_MODULEREF].rows);
858 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
859 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
861 /* 2 bits used to encode tag (ECMA spec claims 3) */
862 field_size = rtsize (meta, n, 16 - 2);
867 * encode field size as follows (we just need to
874 bitfield |= (field_size-1) << shift;
877 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
880 *result_bitfield = (i << 24) | bitfield;
885 * mono_metadata_compute_table_bases:
886 * @meta: metadata context to compute table values
888 * Computes the table bases for the metadata structure.
889 * This is an internal function used by the image loader code.
892 mono_metadata_compute_table_bases (MonoImage *meta)
895 const char *base = meta->tables_base;
897 for (i = 0; i < MONO_TABLE_NUM; i++) {
898 MonoTableInfo *table = &meta->tables [i];
899 if (table->rows == 0)
902 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
904 base += table->rows * table->row_size;
909 * mono_metadata_locate:
910 * @meta: metadata context
911 * @table: table code.
912 * @idx: index of element to retrieve from @table.
914 * Returns: a pointer to the @idx element in the metadata table
915 * whose code is @table.
918 mono_metadata_locate (MonoImage *meta, int table, int idx)
920 /* idx == 0 refers always to NULL */
921 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
923 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
927 * mono_metadata_locate_token:
928 * @meta: metadata context
929 * @token: metadata token
931 * Returns: a pointer to the data in the metadata represented by the
935 mono_metadata_locate_token (MonoImage *meta, guint32 token)
937 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
941 * mono_metadata_string_heap:
942 * @meta: metadata context
943 * @index: index into the string heap.
945 * Returns: an in-memory pointer to the @index in the string heap.
948 mono_metadata_string_heap (MonoImage *meta, guint32 index)
950 g_assert (index < meta->heap_strings.size);
951 g_return_val_if_fail (index < meta->heap_strings.size, "");
952 return meta->heap_strings.data + index;
956 * mono_metadata_user_string:
957 * @meta: metadata context
958 * @index: index into the user string heap.
960 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
963 mono_metadata_user_string (MonoImage *meta, guint32 index)
965 g_assert (index < meta->heap_us.size);
966 g_return_val_if_fail (index < meta->heap_us.size, "");
967 return meta->heap_us.data + index;
971 * mono_metadata_blob_heap:
972 * @meta: metadata context
973 * @index: index into the blob.
975 * Returns: an in-memory pointer to the @index in the Blob heap.
978 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
980 g_assert (index < meta->heap_blob.size);
981 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
982 return meta->heap_blob.data + index;
986 * mono_metadata_guid_heap:
987 * @meta: metadata context
988 * @index: index into the guid heap.
990 * Returns: an in-memory pointer to the @index in the guid heap.
993 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
996 index *= 16; /* adjust for guid size and 1-based index */
997 g_return_val_if_fail (index < meta->heap_guid.size, "");
998 return meta->heap_guid.data + index;
1001 static const unsigned char *
1002 dword_align (const unsigned char *ptr)
1004 #if SIZEOF_VOID_P == 8
1005 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
1007 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
1012 * mono_metadata_decode_row:
1013 * @t: table to extract information from.
1014 * @idx: index in table.
1015 * @res: array of @res_size cols to store the results in
1017 * This decompresses the metadata element @idx in table @t
1018 * into the guint32 @res array that has res_size elements
1021 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
1023 guint32 bitfield = t->size_bitfield;
1024 int i, count = mono_metadata_table_count (bitfield);
1027 g_assert (idx < t->rows);
1028 g_assert (idx >= 0);
1029 data = t->base + idx * t->row_size;
1031 g_assert (res_size == count);
1033 for (i = 0; i < count; i++) {
1034 int n = mono_metadata_table_size (bitfield, i);
1038 res [i] = *data; break;
1040 res [i] = read16 (data); break;
1042 res [i] = read32 (data); break;
1044 g_assert_not_reached ();
1051 * mono_metadata_decode_row_col:
1052 * @t: table to extract information from.
1053 * @idx: index for row in table.
1054 * @col: column in the row.
1056 * This function returns the value of column @col from the @idx
1057 * row in the table @t.
1060 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
1062 guint32 bitfield = t->size_bitfield;
1064 register const char *data;
1067 g_assert (idx < t->rows);
1068 g_assert (col < mono_metadata_table_count (bitfield));
1069 data = t->base + idx * t->row_size;
1071 n = mono_metadata_table_size (bitfield, 0);
1072 for (i = 0; i < col; ++i) {
1074 n = mono_metadata_table_size (bitfield, i + 1);
1080 return read16 (data);
1082 return read32 (data);
1084 g_assert_not_reached ();
1090 * mono_metadata_decode_blob_size:
1091 * @ptr: pointer to a blob object
1092 * @rptr: the new position of the pointer
1094 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1096 * Returns: the size of the blob object
1099 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1101 const unsigned char *ptr = (const unsigned char *)xptr;
1104 if ((*ptr & 0x80) == 0){
1105 size = ptr [0] & 0x7f;
1107 } else if ((*ptr & 0x40) == 0){
1108 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1111 size = ((ptr [0] & 0x1f) << 24) +
1123 * mono_metadata_decode_value:
1124 * @ptr: pointer to decode from
1125 * @rptr: the new position of the pointer
1127 * This routine decompresses 32-bit values as specified in the "Blob and
1128 * Signature" section (22.2)
1130 * Returns: the decoded value
1133 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1135 const unsigned char *ptr = (const unsigned char *) _ptr;
1136 unsigned char b = *ptr;
1139 if ((b & 0x80) == 0){
1142 } else if ((b & 0x40) == 0){
1143 len = ((b & 0x3f) << 8 | ptr [1]);
1146 len = ((b & 0x1f) << 24) |
1159 * mono_metadata_decode_signed_value:
1160 * @ptr: pointer to decode from
1161 * @rptr: the new position of the pointer
1163 * This routine decompresses 32-bit signed values
1164 * (not specified in the spec)
1166 * Returns: the decoded value
1169 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1171 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1172 gint32 ival = uval >> 1;
1175 /* ival is a truncated 2's complement negative number. */
1177 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1180 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1181 return ival - 0x2000;
1182 if (ival < 0x10000000)
1183 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1184 return ival - 0x10000000;
1185 g_assert (ival < 0x20000000);
1186 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1187 return ival - 0x20000000;
1191 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1192 * using the *Ptr tables in uncompressed metadata, if they are available.
1194 * FIXME: The caller is not forced to call this function, which is error-prone, since
1195 * forgetting to call it would only show up as a bug on uncompressed metadata.
1198 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1200 if (!image->uncompressed_metadata)
1204 case MONO_TABLE_METHOD:
1205 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1206 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1209 case MONO_TABLE_FIELD:
1210 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1211 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1214 case MONO_TABLE_EVENT:
1215 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1216 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1219 case MONO_TABLE_PROPERTY:
1220 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1221 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1224 case MONO_TABLE_PARAM:
1225 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1226 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1235 * mono_metadata_decode_table_row:
1237 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1238 * uncompressed metadata into account, so it should be used to access the
1239 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1240 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1243 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1245 if (image->uncompressed_metadata)
1246 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1248 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1252 * mono_metadata_decode_table_row_col:
1254 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1255 * uncompressed metadata into account, so it should be used to access the
1256 * Method, Field, Param and Event tables.
1258 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1260 if (image->uncompressed_metadata)
1261 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1263 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1267 * mono_metadata_parse_typedef_or_ref:
1268 * @m: a metadata context.
1269 * @ptr: a pointer to an encoded TypedefOrRef in @m
1270 * @rptr: pointer updated to match the end of the decoded stream
1272 * Returns: a token valid in the @m metadata decoded from
1273 * the compressed representation.
1276 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1279 token = mono_metadata_decode_value (ptr, &ptr);
1282 return mono_metadata_token_from_dor (token);
1286 * mono_metadata_parse_custom_mod:
1287 * @m: a metadata context.
1288 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1289 * @ptr: a pointer to (possibly) the start of a custom modifier list
1290 * @rptr: pointer updated to match the end of the decoded stream
1292 * Checks if @ptr points to a type custom modifier compressed representation.
1294 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1297 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1299 MonoCustomMod local;
1300 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1303 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1304 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1311 * mono_metadata_parse_array_internal:
1312 * @m: a metadata context.
1313 * @transient: whenever to allocate data from the heap
1314 * @ptr: a pointer to an encoded array description.
1315 * @rptr: pointer updated to match the end of the decoded stream
1317 * Decodes the compressed array description found in the metadata @m at @ptr.
1319 * Returns: a #MonoArrayType structure describing the array type
1320 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1321 * on the value of @transient.
1323 * LOCKING: Acquires the loader lock
1325 static MonoArrayType *
1326 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1327 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1330 MonoArrayType *array;
1333 etype = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error); //FIXME this doesn't respect @transient
1337 array = transient ? (MonoArrayType *)g_malloc0 (sizeof (MonoArrayType)) : (MonoArrayType *)mono_image_alloc0 (m, sizeof (MonoArrayType));
1338 array->eklass = mono_class_from_mono_type (etype);
1339 array->rank = mono_metadata_decode_value (ptr, &ptr);
1341 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1342 if (array->numsizes)
1343 array->sizes = transient ? (int *)g_malloc0 (sizeof (int) * array->numsizes) : (int *)mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1344 for (i = 0; i < array->numsizes; ++i)
1345 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1347 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1348 if (array->numlobounds)
1349 array->lobounds = transient ? (int *)g_malloc0 (sizeof (int) * array->numlobounds) : (int *)mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1350 for (i = 0; i < array->numlobounds; ++i)
1351 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1359 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1362 MonoArrayType *ret = mono_metadata_parse_array_internal (m, NULL, FALSE, ptr, rptr, &error);
1363 mono_error_cleanup (&error);
1369 * mono_metadata_free_array:
1370 * @array: array description
1372 * Frees the array description returned from mono_metadata_parse_array().
1375 mono_metadata_free_array (MonoArrayType *array)
1377 g_free (array->sizes);
1378 g_free (array->lobounds);
1383 * need to add common field and param attributes combinations:
1386 * public static literal
1389 * private static literal
1391 static const MonoType
1393 /* data, attrs, type, nmods, byref, pinned */
1394 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1395 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1396 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1397 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1398 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1399 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1400 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1401 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1402 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1403 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1404 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1405 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1406 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1407 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1408 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1409 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1410 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1411 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1412 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1413 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1414 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1415 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1416 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1417 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1418 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1419 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1420 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1421 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1422 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1423 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1424 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1425 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1426 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1427 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1430 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1432 static GHashTable *type_cache = NULL;
1433 static int next_generic_inst_id = 0;
1435 /* Protected by image_sets_mutex */
1436 static MonoImageSet *mscorlib_image_set;
1437 /* Protected by image_sets_mutex */
1438 static GPtrArray *image_sets;
1439 static mono_mutex_t image_sets_mutex;
1441 static guint mono_generic_class_hash (gconstpointer data);
1444 * MonoTypes with modifies are never cached, so we never check or use that field.
1447 mono_type_hash (gconstpointer data)
1449 const MonoType *type = (const MonoType *) data;
1450 if (type->type == MONO_TYPE_GENERICINST)
1451 return mono_generic_class_hash (type->data.generic_class);
1453 return type->type | (type->byref << 8) | (type->attrs << 9);
1457 mono_type_equal (gconstpointer ka, gconstpointer kb)
1459 const MonoType *a = (const MonoType *) ka;
1460 const MonoType *b = (const MonoType *) kb;
1462 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1464 /* need other checks */
1469 mono_metadata_generic_inst_hash (gconstpointer data)
1471 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1475 for (i = 0; i < ginst->type_argc; ++i) {
1477 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1480 return hash ^ (ginst->is_open << 8);
1484 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1488 // An optimization: if the ids of two insts are the same, we know they are the same inst and don't check contents.
1489 // Furthermore, because we perform early de-duping, if the ids differ, we know the contents differ.
1490 #ifndef MONO_SMALL_CONFIG // Optimization does not work in MONO_SMALL_CONFIG: There are no IDs
1491 if (a->id && b->id) { // "id 0" means "object has no id"-- de-duping hasn't been performed yet, must check contents.
1494 // In signature-comparison mode id equality implies object equality, but this is not true for inequality.
1495 // Two separate objects could have signature-equavalent contents.
1496 if (!signature_only)
1501 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1503 for (i = 0; i < a->type_argc; ++i) {
1504 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1511 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1513 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1514 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1516 return mono_generic_inst_equal_full (a, b, FALSE);
1520 mono_generic_class_hash (gconstpointer data)
1522 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1523 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1526 hash += gclass->is_tb_open;
1527 hash += mono_metadata_generic_context_hash (&gclass->context);
1533 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1535 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1536 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1538 return _mono_metadata_generic_class_equal (a, b, FALSE);
1542 * mono_metadata_init:
1544 * Initialize the global variables of this module.
1545 * This is a Mono runtime internal function.
1548 mono_metadata_init (void)
1552 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1554 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1555 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1557 mono_os_mutex_init_recursive (&image_sets_mutex);
1561 * mono_metadata_cleanup:
1563 * Free all resources used by this module.
1564 * This is a Mono runtime internal function.
1567 mono_metadata_cleanup (void)
1569 g_hash_table_destroy (type_cache);
1571 g_ptr_array_free (image_sets, TRUE);
1573 mono_os_mutex_destroy (&image_sets_mutex);
1577 * mono_metadata_parse_type:
1578 * @m: metadata context
1579 * @mode: king of type that may be found at @ptr
1580 * @opt_attrs: optional attributes to store in the returned type
1581 * @ptr: pointer to the type representation
1582 * @rptr: pointer updated to match the end of the decoded stream
1583 * @transient: whenever to allocate the result from the heap or from a mempool
1585 * Decode a compressed type description found at @ptr in @m.
1586 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1587 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1588 * This function can be used to decode type descriptions in method signatures,
1589 * field signatures, locals signatures etc.
1591 * To parse a generic type, `generic_container' points to the current class'es
1592 * (the `generic_container' field in the MonoClass) or the current generic method's
1593 * (stored in image->property_hash) generic container.
1594 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1595 * this MonoGenericContainer.
1597 * LOCKING: Acquires the loader lock.
1599 * Returns: a #MonoType structure representing the decoded type.
1602 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container,
1603 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1605 MonoType *type, *cached;
1607 gboolean byref = FALSE;
1608 gboolean pinned = FALSE;
1609 const char *tmp_ptr;
1610 int count = 0; // Number of mod arguments
1613 mono_error_init (error);
1616 * According to the spec, custom modifiers should come before the byref
1617 * flag, but the IL produced by ilasm from the following signature:
1618 * object modopt(...) &
1619 * starts with a byref flag, followed by the modifiers. (bug #49802)
1620 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1621 * it would be better to treat byref as real type constructor instead of
1623 * Also, pinned should come before anything else, but some MSV++ produced
1624 * assemblies violate this (#bug 61990).
1627 /* Count the modifiers first */
1632 case MONO_TYPE_PINNED:
1633 case MONO_TYPE_BYREF:
1636 case MONO_TYPE_CMOD_REQD:
1637 case MONO_TYPE_CMOD_OPT:
1639 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1646 if (count) { // There are mods, so the MonoType will be of nonstandard size.
1649 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1650 type = transient ? (MonoType *)g_malloc0 (size) : (MonoType *)mono_image_alloc0 (m, size);
1651 type->num_mods = count;
1653 mono_error_set_bad_image (error, m, "Invalid type with more than 64 modifiers");
1656 } else { // The type is of standard size, so we can allocate it on the stack.
1658 memset (type, 0, MONO_SIZEOF_TYPE);
1661 /* Iterate again, but now parse pinned, byref and custom modifiers */
1666 case MONO_TYPE_PINNED:
1670 case MONO_TYPE_BYREF:
1674 case MONO_TYPE_CMOD_REQD:
1675 case MONO_TYPE_CMOD_OPT:
1676 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1684 type->attrs = opt_attrs;
1685 type->byref = byref;
1686 type->pinned = pinned ? 1 : 0;
1688 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr, error))
1694 // Possibly we can return an already-allocated type instead of the one we decoded
1695 if (!type->num_mods && !transient) {
1696 /* no need to free type here, because it is on the stack */
1697 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1698 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1700 /* Consider the case:
1702 class Foo<T> { class Bar {} }
1703 class Test : Foo<Test>.Bar {}
1705 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1706 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1708 We ensure that the MonoClass is in a state that we can canonicalize to:
1710 klass->byval_arg.data.klass == klass
1711 klass->this_arg.data.klass == klass
1713 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1715 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1716 of a MonoClass which currently holds the loader lock. 'type' is local.
1718 if (ret->data.klass == type->data.klass) {
1722 /* No need to use locking since nobody is modifying the hash table */
1723 if ((cached = (MonoType *)g_hash_table_lookup (type_cache, type))) {
1728 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1730 if (type == &stype) { // Type was allocated on the stack, so we need to copy it to safety
1731 type = transient ? (MonoType *)g_malloc (MONO_SIZEOF_TYPE) : (MonoType *)mono_image_alloc (m, MONO_SIZEOF_TYPE);
1732 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1739 mono_metadata_parse_type_checked (MonoImage *m, MonoGenericContainer *container,
1740 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1742 return mono_metadata_parse_type_internal (m, container, opt_attrs, transient, ptr, rptr, error);
1746 * LOCKING: Acquires the loader lock.
1749 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1750 const char *ptr, const char **rptr)
1753 MonoType * type = mono_metadata_parse_type_internal (m, NULL, opt_attrs, FALSE, ptr, rptr, &error);
1754 mono_error_cleanup (&error);
1759 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1761 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1762 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1763 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1765 if (def < methodt->rows)
1766 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1768 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1770 for (i = param_index; i < lastp; ++i) {
1771 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1780 * mono_metadata_get_param_attrs:
1782 * @m The image to loader parameter attributes from
1783 * @def method def token (one based)
1784 * @param_count number of params to decode including the return value
1786 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1787 * returned memory needs to be freed by the caller. If all the param attributes are
1788 * 0, then NULL is returned.
1791 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1793 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1794 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1795 guint32 cols [MONO_PARAM_SIZE];
1796 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1799 if (def < methodt->rows)
1800 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1802 lastp = paramt->rows + 1;
1804 for (i = param_index; i < lastp; ++i) {
1805 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1806 if (cols [MONO_PARAM_FLAGS]) {
1808 pattrs = g_new0 (int, param_count);
1809 /* at runtime we just ignore this kind of malformed file:
1810 * the verifier can signal the error to the user
1812 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1814 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1823 * mono_metadata_parse_signature:
1824 * @image: metadata context
1825 * @token: metadata token
1827 * Decode a method signature stored in the STANDALONESIG table
1829 * Returns: a MonoMethodSignature describing the signature.
1831 MonoMethodSignature*
1832 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1835 MonoMethodSignature *ret;
1836 ret = mono_metadata_parse_signature_checked (image, token, &error);
1837 mono_error_cleanup (&error);
1842 * mono_metadata_parse_signature_checked:
1843 * @image: metadata context
1844 * @token: metadata token
1845 * @error: set on error
1847 * Decode a method signature stored in the STANDALONESIG table
1849 * Returns: a MonoMethodSignature describing the signature. On failure
1850 * returns NULL and sets @error.
1852 MonoMethodSignature*
1853 mono_metadata_parse_signature_checked (MonoImage *image, guint32 token, MonoError *error)
1856 mono_error_init (error);
1857 MonoTableInfo *tables = image->tables;
1858 guint32 idx = mono_metadata_token_index (token);
1862 if (image_is_dynamic (image)) {
1863 return (MonoMethodSignature *)mono_lookup_dynamic_token (image, token, NULL, error);
1866 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1868 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1870 ptr = mono_metadata_blob_heap (image, sig);
1871 mono_metadata_decode_blob_size (ptr, &ptr);
1873 return mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
1877 * mono_metadata_signature_alloc:
1878 * @image: metadata context
1879 * @nparmas: number of parameters in the signature
1881 * Allocate a MonoMethodSignature structure with the specified number of params.
1882 * The return type and the params types need to be filled later.
1883 * This is a Mono runtime internal function.
1885 * LOCKING: Assumes the loader lock is held.
1887 * Returns: the new MonoMethodSignature structure.
1889 MonoMethodSignature*
1890 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1892 MonoMethodSignature *sig;
1894 sig = (MonoMethodSignature *)mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1895 sig->param_count = nparams;
1896 sig->sentinelpos = -1;
1901 static MonoMethodSignature*
1902 mono_metadata_signature_dup_internal_with_padding (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig, size_t padding)
1904 int sigsize, sig_header_size;
1905 MonoMethodSignature *ret;
1906 sigsize = sig_header_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *) + padding;
1908 sigsize += MONO_SIZEOF_TYPE;
1911 ret = (MonoMethodSignature *)mono_image_alloc (image, sigsize);
1913 ret = (MonoMethodSignature *)mono_mempool_alloc (mp, sigsize);
1915 ret = (MonoMethodSignature *)g_malloc (sigsize);
1918 memcpy (ret, sig, sig_header_size - padding);
1920 // Copy return value because of ownership semantics.
1922 // Danger! Do not alter padding use without changing the dup_add_this below
1923 intptr_t end_of_header = (intptr_t)( (char*)(ret) + sig_header_size);
1924 ret->ret = (MonoType *)end_of_header;
1925 memcpy (ret->ret, sig->ret, MONO_SIZEOF_TYPE);
1931 static MonoMethodSignature*
1932 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1934 return mono_metadata_signature_dup_internal_with_padding (image, mp, sig, 0);
1937 * signature_dup_add_this:
1939 * Make a copy of @sig, adding an explicit this argument.
1941 MonoMethodSignature*
1942 mono_metadata_signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
1944 MonoMethodSignature *ret;
1945 ret = mono_metadata_signature_dup_internal_with_padding (image, NULL, sig, sizeof (MonoType *));
1947 ret->param_count = sig->param_count + 1;
1948 ret->hasthis = FALSE;
1950 for (int i = sig->param_count - 1; i >= 0; i --)
1951 ret->params [i + 1] = sig->params [i];
1952 ret->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
1954 for (int i = sig->param_count - 1; i >= 0; i --)
1955 g_assert(ret->params [i + 1]->type == sig->params [i]->type && ret->params [i+1]->type != MONO_TYPE_END);
1956 g_assert (ret->ret->type == sig->ret->type && ret->ret->type != MONO_TYPE_END);
1963 MonoMethodSignature*
1964 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1966 MonoMethodSignature *ret = mono_metadata_signature_dup_internal (image, NULL, sig);
1968 for (int i = 0 ; i < sig->param_count; i ++)
1969 g_assert(ret->params [i]->type == sig->params [i]->type);
1970 g_assert (ret->ret->type == sig->ret->type);
1975 /*The mempool is accessed without synchronization*/
1976 MonoMethodSignature*
1977 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1979 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1983 * mono_metadata_signature_dup:
1984 * @sig: method signature
1986 * Duplicate an existing MonoMethodSignature so it can be modified.
1987 * This is a Mono runtime internal function.
1989 * Returns: the new MonoMethodSignature structure.
1991 MonoMethodSignature*
1992 mono_metadata_signature_dup (MonoMethodSignature *sig)
1994 return mono_metadata_signature_dup_full (NULL, sig);
1998 * mono_metadata_signature_size:
2000 * Return the amount of memory allocated to SIG.
2003 mono_metadata_signature_size (MonoMethodSignature *sig)
2005 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
2009 * mono_metadata_parse_method_signature:
2010 * @m: metadata context
2011 * @generic_container: generics container
2012 * @def: the MethodDef index or 0 for Ref signatures.
2013 * @ptr: pointer to the signature metadata representation
2014 * @rptr: pointer updated to match the end of the decoded stream
2016 * Decode a method signature stored at @ptr.
2017 * This is a Mono runtime internal function.
2019 * LOCKING: Assumes the loader lock is held.
2021 * Returns: a MonoMethodSignature describing the signature.
2023 MonoMethodSignature *
2024 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
2025 int def, const char *ptr, const char **rptr, MonoError *error)
2027 MonoMethodSignature *method;
2028 int i, *pattrs = NULL;
2029 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
2030 guint32 gen_param_count = 0;
2031 gboolean is_open = FALSE;
2033 mono_error_init (error);
2036 gen_param_count = 1;
2041 call_convention = *ptr & 0x0F;
2043 if (gen_param_count)
2044 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
2045 param_count = mono_metadata_decode_value (ptr, &ptr);
2048 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 */
2050 method = mono_metadata_signature_alloc (m, param_count);
2051 method->hasthis = hasthis;
2052 method->explicit_this = explicit_this;
2053 method->call_convention = call_convention;
2054 method->generic_param_count = gen_param_count;
2056 if (call_convention != 0xa) {
2057 method->ret = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [0] : 0, FALSE, ptr, &ptr, error);
2059 mono_metadata_free_method_signature (method);
2063 is_open = mono_class_is_open_constructed_type (method->ret);
2066 for (i = 0; i < method->param_count; ++i) {
2067 if (*ptr == MONO_TYPE_SENTINEL) {
2068 if (method->call_convention != MONO_CALL_VARARG || def) {
2069 mono_error_set_bad_image (error, m, "Found sentinel for methoddef or no vararg");
2073 if (method->sentinelpos >= 0) {
2074 mono_error_set_bad_image (error, m, "Found sentinel twice in the same signature.");
2078 method->sentinelpos = i;
2081 method->params [i] = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [i+1] : 0, FALSE, ptr, &ptr, error);
2082 if (!method->params [i]) {
2083 mono_metadata_free_method_signature (method);
2088 is_open = mono_class_is_open_constructed_type (method->params [i]);
2091 /* The sentinel could be missing if the caller does not pass any additional arguments */
2092 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
2093 method->sentinelpos = method->param_count;
2095 method->has_type_parameters = is_open;
2097 if (def && (method->call_convention == MONO_CALL_VARARG))
2098 method->sentinelpos = method->param_count;
2105 * Add signature to a cache and increase ref count...
2112 * mono_metadata_parse_method_signature:
2113 * @m: metadata context
2114 * @def: the MethodDef index or 0 for Ref signatures.
2115 * @ptr: pointer to the signature metadata representation
2116 * @rptr: pointer updated to match the end of the decoded stream
2118 * Decode a method signature stored at @ptr.
2119 * This is a Mono runtime internal function.
2121 * LOCKING: Assumes the loader lock is held.
2123 * Returns: a MonoMethodSignature describing the signature.
2125 MonoMethodSignature *
2126 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
2129 * This function MUST NOT be called by runtime code as it does error handling incorrectly.
2130 * Use mono_metadata_parse_method_signature_full instead.
2131 * It's ok to asser on failure as we no longer use it.
2134 MonoMethodSignature *ret;
2135 ret = mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr, &error);
2136 g_assert (mono_error_ok (&error));
2142 * mono_metadata_free_method_signature:
2143 * @sig: signature to destroy
2145 * Free the memory allocated in the signature @sig.
2146 * This method needs to be robust and work also on partially-built
2147 * signatures, so it does extra checks.
2150 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2152 /* Everything is allocated from mempools */
2156 mono_metadata_free_type (sig->ret);
2157 for (i = 0; i < sig->param_count; ++i) {
2158 if (sig->params [i])
2159 mono_metadata_free_type (sig->params [i]);
2165 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2169 /* Allocated in inflate_generic_signature () */
2171 mono_metadata_free_type (sig->ret);
2172 for (i = 0; i < sig->param_count; ++i) {
2173 if (sig->params [i])
2174 mono_metadata_free_type (sig->params [i]);
2180 inflated_method_equal (gconstpointer a, gconstpointer b)
2182 const MonoMethodInflated *ma = (const MonoMethodInflated *)a;
2183 const MonoMethodInflated *mb = (const MonoMethodInflated *)b;
2184 if (ma->declaring != mb->declaring)
2186 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2190 inflated_method_hash (gconstpointer a)
2192 const MonoMethodInflated *ma = (const MonoMethodInflated *)a;
2193 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring));
2197 inflated_signature_equal (gconstpointer a, gconstpointer b)
2199 const MonoInflatedMethodSignature *sig1 = (const MonoInflatedMethodSignature *)a;
2200 const MonoInflatedMethodSignature *sig2 = (const MonoInflatedMethodSignature *)b;
2202 /* sig->sig is assumed to be canonized */
2203 if (sig1->sig != sig2->sig)
2205 /* The generic instances are canonized */
2206 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2210 inflated_signature_hash (gconstpointer a)
2212 const MonoInflatedMethodSignature *sig = (const MonoInflatedMethodSignature *)a;
2214 /* sig->sig is assumed to be canonized */
2215 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2219 dump_ginst (MonoGenericInst *ginst)
2224 g_print ("Ginst: <");
2225 for (i = 0; i < ginst->type_argc; ++i) {
2228 name = mono_type_get_name (ginst->type_argv [i]);
2229 g_print ("%s", name);
2235 static gboolean type_in_image (MonoType *type, MonoImage *image);
2238 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2240 gpointer iter = NULL;
2243 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2244 if (type_in_image (p, image))
2247 return type_in_image (mono_signature_get_return_type (sig), image);
2251 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2255 for (i = 0; i < ginst->type_argc; ++i) {
2256 if (type_in_image (ginst->type_argv [i], image))
2264 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2266 return gclass->container_class->image == image ||
2267 ginst_in_image (gclass->context.class_inst, image);
2271 type_in_image (MonoType *type, MonoImage *image)
2274 switch (type->type) {
2275 case MONO_TYPE_GENERICINST:
2276 return gclass_in_image (type->data.generic_class, image);
2278 type = type->data.type;
2280 case MONO_TYPE_SZARRAY:
2281 type = &type->data.klass->byval_arg;
2283 case MONO_TYPE_ARRAY:
2284 type = &type->data.array->eklass->byval_arg;
2286 case MONO_TYPE_FNPTR:
2287 return signature_in_image (type->data.method, image);
2289 case MONO_TYPE_MVAR:
2290 return image == get_image_for_generic_param (type->data.generic_param);
2292 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2293 return image == mono_class_from_mono_type (type)->image;
2298 image_sets_lock (void)
2300 mono_os_mutex_lock (&image_sets_mutex);
2304 image_sets_unlock (void)
2306 mono_os_mutex_unlock (&image_sets_mutex);
2312 * Return a MonoImageSet representing the set of images in IMAGES.
2314 static MonoImageSet*
2315 get_image_set (MonoImage **images, int nimages)
2321 /* Common case: Image set contains corlib only. If we've seen that case before, we cached the set. */
2322 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2323 return mscorlib_image_set;
2325 /* Happens with empty generic instances */
2326 // FIXME: Is corlib the correct thing to return here? If so, why? This may be an artifact of generic instances previously defaulting to allocating from corlib.
2328 return mscorlib_image_set;
2333 image_sets = g_ptr_array_new ();
2335 // Before we go on, we should check to see whether a MonoImageSet with these images already exists.
2336 // We can search the referred-by imagesets of any one of our images to do this. Arbitrarily pick one here:
2337 if (images [0] == mono_defaults.corlib && nimages > 1)
2338 l = images [1]->image_sets; // Prefer not to search the imagesets of corlib-- that will be a long list.
2340 l = images [0]->image_sets;
2343 while (l) // Iterate over selected list, looking for an imageset with members equal to our target one
2345 set = (MonoImageSet *)l->data;
2347 if (set->nimages == nimages) { // Member count differs, this can't be it
2348 // Compare all members to all members-- order might be different
2349 for (j = 0; j < nimages; ++j) {
2350 for (k = 0; k < nimages; ++k)
2351 if (set->images [k] == images [j])
2352 break; // Break on match
2354 // If we iterated all the way through set->images, images[j] was *not* found.
2356 break; // Break on "image not found"
2359 // If we iterated all the way through images without breaking, all items in images were found in set->images
2361 break; // Break on "found a set with equal members"
2367 // If we iterated all the way through l without breaking, the imageset does not already exist and we shuold create it
2369 set = g_new0 (MonoImageSet, 1);
2370 set->nimages = nimages;
2371 set->images = g_new0 (MonoImage*, nimages);
2372 mono_os_mutex_init_recursive (&set->lock);
2373 for (i = 0; i < nimages; ++i)
2374 set->images [i] = images [i];
2375 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2376 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2377 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2378 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2380 for (i = 0; i < nimages; ++i)
2381 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2383 g_ptr_array_add (image_sets, set);
2386 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2387 mono_memory_barrier ();
2388 mscorlib_image_set = set;
2391 image_sets_unlock ();
2397 delete_image_set (MonoImageSet *set)
2401 g_hash_table_destroy (set->gclass_cache);
2402 g_hash_table_destroy (set->ginst_cache);
2403 g_hash_table_destroy (set->gmethod_cache);
2404 g_hash_table_destroy (set->gsignature_cache);
2406 mono_wrapper_caches_free (&set->wrapper_caches);
2410 for (i = 0; i < set->nimages; ++i)
2411 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2413 g_ptr_array_remove (image_sets, set);
2415 image_sets_unlock ();
2418 mono_mempool_destroy (set->mempool);
2419 g_free (set->images);
2420 mono_os_mutex_destroy (&set->lock);
2425 mono_image_set_lock (MonoImageSet *set)
2427 mono_os_mutex_lock (&set->lock);
2431 mono_image_set_unlock (MonoImageSet *set)
2433 mono_os_mutex_unlock (&set->lock);
2437 mono_image_set_alloc (MonoImageSet *set, guint size)
2441 mono_image_set_lock (set);
2443 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2444 res = mono_mempool_alloc (set->mempool, size);
2445 mono_image_set_unlock (set);
2451 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2455 mono_image_set_lock (set);
2457 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2458 res = mono_mempool_alloc0 (set->mempool, size);
2459 mono_image_set_unlock (set);
2465 mono_image_set_strdup (MonoImageSet *set, const char *s)
2469 mono_image_set_lock (set);
2471 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2472 res = mono_mempool_strdup (set->mempool, s);
2473 mono_image_set_unlock (set);
2478 // Get a descriptive string for a MonoImageSet
2479 // Callers are obligated to free buffer with g_free after use
2481 mono_image_set_description (MonoImageSet *set)
2483 GString *result = g_string_new (NULL);
2485 g_string_append (result, "[");
2486 for (img = 0; img < set->nimages; img++)
2489 g_string_append (result, ", ");
2490 g_string_append (result, set->images[img]->name);
2492 g_string_append (result, "]");
2493 return g_string_free (result, FALSE);
2497 * Structure used by the collect_..._images functions to store the image list.
2500 MonoImage *image_buf [64];
2502 int nimages, images_len;
2506 collect_data_init (CollectData *data)
2508 data->images = data->image_buf;
2509 data->images_len = 64;
2514 collect_data_free (CollectData *data)
2516 if (data->images != data->image_buf)
2517 g_free (data->images);
2521 enlarge_data (CollectData *data)
2523 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2524 MonoImage **d = g_new (MonoImage *, new_len);
2527 g_assert_not_reached ();
2528 memcpy (d, data->images, data->images_len);
2529 if (data->images != data->image_buf)
2530 g_free (data->images);
2532 data->images_len = new_len;
2536 add_image (MonoImage *image, CollectData *data)
2540 /* The arrays are small, so use a linear search instead of a hash table */
2541 for (i = 0; i < data->nimages; ++i)
2542 if (data->images [i] == image)
2545 if (data->nimages == data->images_len)
2546 enlarge_data (data);
2548 data->images [data->nimages ++] = image;
2552 collect_type_images (MonoType *type, CollectData *data);
2555 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2559 for (i = 0; i < ginst->type_argc; ++i) {
2560 collect_type_images (ginst->type_argv [i], data);
2565 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2567 add_image (gclass->container_class->image, data);
2568 if (gclass->context.class_inst)
2569 collect_ginst_images (gclass->context.class_inst, data);
2573 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2575 gpointer iter = NULL;
2578 collect_type_images (mono_signature_get_return_type (sig), data);
2579 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2580 collect_type_images (p, data);
2584 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2586 collect_signature_images (sig->sig, data);
2587 if (sig->context.class_inst)
2588 collect_ginst_images (sig->context.class_inst, data);
2589 if (sig->context.method_inst)
2590 collect_ginst_images (sig->context.method_inst, data);
2594 collect_method_images (MonoMethodInflated *method, CollectData *data)
2596 MonoMethod *m = method->declaring;
2598 add_image (method->declaring->klass->image, data);
2599 if (method->context.class_inst)
2600 collect_ginst_images (method->context.class_inst, data);
2601 if (method->context.method_inst)
2602 collect_ginst_images (method->context.method_inst, data);
2604 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2606 if (image_is_dynamic (m->klass->image))
2607 collect_signature_images (mono_method_signature (m), data);
2611 collect_type_images (MonoType *type, CollectData *data)
2614 switch (type->type) {
2615 case MONO_TYPE_GENERICINST:
2616 collect_gclass_images (type->data.generic_class, data);
2619 type = type->data.type;
2621 case MONO_TYPE_SZARRAY:
2622 type = &type->data.klass->byval_arg;
2624 case MONO_TYPE_ARRAY:
2625 type = &type->data.array->eklass->byval_arg;
2627 case MONO_TYPE_FNPTR:
2628 //return signature_in_image (type->data.method, image);
2629 g_assert_not_reached ();
2631 case MONO_TYPE_MVAR:
2633 MonoImage *image = get_image_for_generic_param (type->data.generic_param);
2634 add_image (image, data);
2637 case MONO_TYPE_CLASS:
2638 case MONO_TYPE_VALUETYPE:
2639 add_image (mono_class_from_mono_type (type)->image, data);
2642 add_image (mono_defaults.corlib, data);
2649 } CleanForImageUserData;
2652 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2654 MonoGenericClass *gclass = (MonoGenericClass *)key;
2655 CleanForImageUserData *user_data = (CleanForImageUserData *)data;
2657 g_assert (gclass_in_image (gclass, user_data->image));
2659 user_data->list = g_slist_prepend (user_data->list, gclass);
2664 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2666 MonoGenericInst *ginst = (MonoGenericInst *)key;
2667 CleanForImageUserData *user_data = (CleanForImageUserData *)data;
2669 // This doesn't work during corlib compilation
2670 //g_assert (ginst_in_image (ginst, user_data->image));
2672 user_data->list = g_slist_prepend (user_data->list, ginst);
2677 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2679 MonoImage *image = (MonoImage *)data;
2680 MonoMethodInflated *method = (MonoMethodInflated *)key;
2683 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2684 g_assert (method->declaring->klass->image == image ||
2685 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2686 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2692 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2694 MonoImage *image = (MonoImage *)data;
2695 MonoInflatedMethodSignature *sig = (MonoInflatedMethodSignature *)key;
2697 return signature_in_image (sig->sig, image) ||
2698 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2699 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2703 check_gmethod (gpointer key, gpointer value, gpointer data)
2705 MonoMethodInflated *method = (MonoMethodInflated *)key;
2706 MonoImage *image = (MonoImage *)data;
2708 if (method->context.class_inst)
2709 g_assert (!ginst_in_image (method->context.class_inst, image));
2710 if (method->context.method_inst)
2711 g_assert (!ginst_in_image (method->context.method_inst, image));
2712 if (((MonoMethod*)method)->signature)
2713 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2719 * Run a consistency check on the image set data structures.
2721 static G_GNUC_UNUSED void
2722 check_image_sets (MonoImage *image)
2725 GSList *l = image->image_sets;
2730 for (i = 0; i < image_sets->len; ++i) {
2731 MonoImageSet *set = (MonoImageSet *)g_ptr_array_index (image_sets, i);
2733 if (!g_slist_find (l, set)) {
2734 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2740 mono_metadata_clean_for_image (MonoImage *image)
2742 CleanForImageUserData ginst_data, gclass_data;
2743 GSList *l, *set_list;
2745 //check_image_sets (image);
2748 * The data structures could reference each other so we delete them in two phases.
2749 * This is required because of the hashing functions in gclass/ginst_cache.
2751 ginst_data.image = gclass_data.image = image;
2752 ginst_data.list = gclass_data.list = NULL;
2754 /* Collect the items to delete */
2755 /* delete_image_set () modifies the lists so make a copy */
2756 for (l = image->image_sets; l; l = l->next) {
2757 MonoImageSet *set = (MonoImageSet *)l->data;
2759 mono_image_set_lock (set);
2760 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2761 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2762 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2763 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2764 mono_image_set_unlock (set);
2767 /* Delete the removed items */
2768 for (l = ginst_data.list; l; l = l->next)
2769 free_generic_inst ((MonoGenericInst *)l->data);
2770 for (l = gclass_data.list; l; l = l->next)
2771 free_generic_class ((MonoGenericClass *)l->data);
2772 g_slist_free (ginst_data.list);
2773 g_slist_free (gclass_data.list);
2774 /* delete_image_set () modifies the lists so make a copy */
2775 set_list = g_slist_copy (image->image_sets);
2776 for (l = set_list; l; l = l->next) {
2777 MonoImageSet *set = (MonoImageSet *)l->data;
2779 delete_image_set (set);
2781 g_slist_free (set_list);
2785 free_inflated_method (MonoMethodInflated *imethod)
2787 MonoMethod *method = (MonoMethod*)imethod;
2789 if (method->signature)
2790 mono_metadata_free_inflated_signature (method->signature);
2792 if (method->wrapper_type)
2793 g_free (((MonoMethodWrapper*)method)->method_data);
2799 free_generic_inst (MonoGenericInst *ginst)
2803 /* The ginst itself is allocated from the image set mempool */
2804 for (i = 0; i < ginst->type_argc; ++i)
2805 mono_metadata_free_type (ginst->type_argv [i]);
2809 free_generic_class (MonoGenericClass *gclass)
2811 /* The gclass itself is allocated from the image set mempool */
2812 if (gclass->cached_class && gclass->cached_class->interface_id)
2813 mono_unload_interface_id (gclass->cached_class);
2817 free_inflated_signature (MonoInflatedMethodSignature *sig)
2819 mono_metadata_free_inflated_signature (sig->sig);
2824 * mono_metadata_get_inflated_signature:
2826 * Given an inflated signature and a generic context, return a canonical copy of the
2827 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2829 MonoMethodSignature *
2830 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2832 MonoInflatedMethodSignature helper;
2833 MonoInflatedMethodSignature *res;
2838 helper.context.class_inst = context->class_inst;
2839 helper.context.method_inst = context->method_inst;
2841 collect_data_init (&data);
2843 collect_inflated_signature_images (&helper, &data);
2845 set = get_image_set (data.images, data.nimages);
2847 collect_data_free (&data);
2849 mono_image_set_lock (set);
2851 res = (MonoInflatedMethodSignature *)g_hash_table_lookup (set->gsignature_cache, &helper);
2853 res = g_new0 (MonoInflatedMethodSignature, 1);
2855 res->context.class_inst = context->class_inst;
2856 res->context.method_inst = context->method_inst;
2857 g_hash_table_insert (set->gsignature_cache, res, res);
2860 mono_image_set_unlock (set);
2866 mono_metadata_get_image_set_for_method (MonoMethodInflated *method)
2869 CollectData image_set_data;
2871 collect_data_init (&image_set_data);
2872 collect_method_images (method, &image_set_data);
2873 set = get_image_set (image_set_data.images, image_set_data.nimages);
2874 collect_data_free (&image_set_data);
2880 * mono_metadata_get_generic_inst:
2882 * Given a list of types, return a MonoGenericInst that represents that list.
2883 * The returned MonoGenericInst has its own copy of the list of types. The list
2884 * passed in the argument can be freed, modified or disposed of.
2888 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2890 MonoGenericInst *ginst;
2893 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2895 for (i = 0; i < type_argc; ++i)
2896 if (mono_class_is_open_constructed_type (type_argv [i]))
2898 is_open = (i < type_argc);
2900 ginst = (MonoGenericInst *)g_alloca (size);
2901 memset (ginst, 0, sizeof (MonoGenericInst));
2902 ginst->is_open = is_open;
2903 ginst->type_argc = type_argc;
2904 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2906 return mono_metadata_get_canonical_generic_inst (ginst);
2911 * mono_metadata_get_canonical_generic_inst:
2912 * @candidate: an arbitrary generic instantiation
2914 * Returns the canonical generic instantiation that represents the given
2915 * candidate by identifying the image set for the candidate instantiation and
2916 * finding the instance in the image set or adding a copy of the given instance
2919 * The returned MonoGenericInst has its own copy of the list of types. The list
2920 * passed in the argument can be freed, modified or disposed of.
2924 mono_metadata_get_canonical_generic_inst (MonoGenericInst *candidate)
2927 int type_argc = candidate->type_argc;
2928 gboolean is_open = candidate->is_open;
2931 collect_data_init (&data);
2933 collect_ginst_images (candidate, &data);
2935 set = get_image_set (data.images, data.nimages);
2937 collect_data_free (&data);
2939 mono_image_set_lock (set);
2941 MonoGenericInst *ginst = (MonoGenericInst *)g_hash_table_lookup (set->ginst_cache, candidate);
2943 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2944 ginst = (MonoGenericInst *)mono_image_set_alloc0 (set, size);
2945 #ifndef MONO_SMALL_CONFIG
2946 ginst->id = ++next_generic_inst_id;
2948 ginst->is_open = is_open;
2949 ginst->type_argc = type_argc;
2951 for (int i = 0; i < type_argc; ++i)
2952 ginst->type_argv [i] = mono_metadata_type_dup (NULL, candidate->type_argv [i]);
2954 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2957 mono_image_set_unlock (set);
2962 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2964 MonoGenericContainer *container = mono_class_get_generic_container (container_class);
2966 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2968 return inst == container->context.class_inst;
2972 * mono_metadata_lookup_generic_class:
2974 * Returns a MonoGenericClass with the given properties.
2978 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2980 MonoGenericClass *gclass;
2981 MonoGenericClass helper;
2982 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2986 g_assert (mono_class_get_generic_container (container_class)->type_argc == inst->type_argc);
2988 memset (&helper, 0, sizeof(helper)); // act like g_new0
2989 helper.container_class = container_class;
2990 helper.context.class_inst = inst;
2991 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2992 helper.is_tb_open = is_tb_open;
2994 collect_data_init (&data);
2996 collect_gclass_images (&helper, &data);
2998 set = get_image_set (data.images, data.nimages);
3000 collect_data_free (&data);
3002 mono_image_set_lock (set);
3004 gclass = (MonoGenericClass *)g_hash_table_lookup (set->gclass_cache, &helper);
3006 /* A tripwire just to keep us honest */
3007 g_assert (!helper.cached_class);
3010 mono_image_set_unlock (set);
3014 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
3016 gclass->is_dynamic = 1;
3018 gclass->is_tb_open = is_tb_open;
3019 gclass->container_class = container_class;
3020 gclass->context.class_inst = inst;
3021 gclass->context.method_inst = NULL;
3022 gclass->owner = set;
3023 if (inst == mono_class_get_generic_container (container_class)->context.class_inst && !is_tb_open)
3024 gclass->cached_class = container_class;
3026 g_hash_table_insert (set->gclass_cache, gclass, gclass);
3028 mono_image_set_unlock (set);
3034 * mono_metadata_inflate_generic_inst:
3036 * Instantiate the generic instance @ginst with the context @context.
3037 * Check @error for success.
3041 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
3043 MonoType **type_argv;
3044 MonoGenericInst *nginst = NULL;
3047 mono_error_init (error);
3049 if (!ginst->is_open)
3052 type_argv = g_new0 (MonoType*, ginst->type_argc);
3054 for (i = 0; i < ginst->type_argc; i++) {
3055 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
3056 if (!mono_error_ok (error))
3061 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
3064 for (i = 0; i < count; i++)
3065 mono_metadata_free_type (type_argv [i]);
3072 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3073 int count, const char *ptr, const char **rptr, MonoError *error)
3075 MonoType **type_argv;
3076 MonoGenericInst *ginst;
3079 mono_error_init (error);
3080 type_argv = g_new0 (MonoType*, count);
3082 for (i = 0; i < count; i++) {
3083 MonoType *t = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error);
3094 ginst = mono_metadata_get_generic_inst (count, type_argv);
3102 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3103 const char *ptr, const char **rptr, MonoError *error)
3105 MonoGenericInst *inst;
3110 mono_error_init (error);
3112 // XXX how about transient?
3113 gtype = mono_metadata_parse_type_checked (m, NULL, 0, FALSE, ptr, &ptr, error);
3117 gklass = mono_class_from_mono_type (gtype);
3118 if (!mono_class_is_gtd (gklass)) {
3119 mono_error_set_bad_image (error, m, "Generic instance with non-generic definition");
3123 count = mono_metadata_decode_value (ptr, &ptr);
3124 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr, error);
3131 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3137 * @gc: The generic container to normalize
3138 * @type: The kind of generic parameters the resulting generic-container should contain
3141 static MonoGenericContainer *
3142 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3144 gboolean is_var = (type == MONO_TYPE_VAR);
3148 g_assert (is_var || type == MONO_TYPE_MVAR);
3151 if (gc->is_method || gc->parent)
3153 * The current MonoGenericContainer is a generic method -> its `parent'
3154 * points to the containing class'es container.
3162 MonoGenericContainer *
3163 get_anonymous_container_for_image (MonoImage *image, gboolean is_mvar)
3165 MonoGenericContainer **container_pointer;
3167 container_pointer = &image->anonymous_generic_method_container;
3169 container_pointer = &image->anonymous_generic_class_container;
3170 MonoGenericContainer *result = *container_pointer;
3172 // This container has never been created; make it now.
3175 // Note this is never deallocated anywhere-- it exists for the lifetime of the image it's allocated from
3176 result = (MonoGenericContainer *)mono_image_alloc0 (image, sizeof (MonoGenericContainer));
3177 result->owner.image = image;
3178 result->is_anonymous = TRUE;
3179 result->is_small_param = TRUE;
3180 result->is_method = is_mvar;
3182 // If another thread already made a container, use that and leak this new one.
3183 // (Technically it would currently be safe to just assign instead of CASing.)
3184 MonoGenericContainer *exchange = (MonoGenericContainer *)InterlockedCompareExchangePointer ((volatile gpointer *)container_pointer, result, NULL);
3192 * mono_metadata_parse_generic_param:
3193 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3194 * see mono_metadata_parse_type_checked() for details.
3195 * Internal routine to parse a generic type parameter.
3196 * LOCKING: Acquires the loader lock
3198 static MonoGenericParam *
3199 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3200 MonoTypeEnum type, const char *ptr, const char **rptr, MonoError *error)
3202 int index = mono_metadata_decode_value (ptr, &ptr);
3206 mono_error_init (error);
3208 generic_container = select_container (generic_container, type);
3209 if (!generic_container) {
3210 gboolean is_mvar = FALSE;
3215 case MONO_TYPE_MVAR:
3219 g_error ("Cerating generic param object with invalid MonoType"); // This is not a generic param
3222 /* Create dummy MonoGenericParam */
3223 MonoGenericParam *param;
3225 param = (MonoGenericParam *)mono_image_alloc0 (m, sizeof (MonoGenericParam));
3227 param->owner = get_anonymous_container_for_image (m, is_mvar);
3232 if (index >= generic_container->type_argc) {
3233 mono_error_set_bad_image (error, m, "Invalid generic %s parameter index %d, max index is %d",
3234 generic_container->is_method ? "method" : "type",
3235 index, generic_container->type_argc);
3239 //This can't return NULL
3240 return mono_generic_container_get_param (generic_container, index);
3244 * mono_metadata_get_shared_type:
3246 * Return a shared instance of TYPE, if available, NULL otherwise.
3247 * Shared MonoType instances help save memory. Their contents should not be modified
3248 * by the caller. They do not need to be freed as their lifetime is bound by either
3249 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3250 * instance they are embedded in. If they are freed, they should be freed using
3251 * mono_metadata_free_type () instead of g_free ().
3254 mono_metadata_get_shared_type (MonoType *type)
3258 /* No need to use locking since nobody is modifying the hash table */
3259 if ((cached = (MonoType *)g_hash_table_lookup (type_cache, type)))
3262 switch (type->type){
3263 case MONO_TYPE_CLASS:
3264 case MONO_TYPE_VALUETYPE:
3265 if (type == &type->data.klass->byval_arg)
3267 if (type == &type->data.klass->this_arg)
3278 compare_type_literals (MonoImage *image, int class_type, int type_type, MonoError *error)
3280 mono_error_init (error);
3282 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3283 * See mcs/test/gtest-440. and #650936.
3284 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3288 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3291 if (class_type == type_type)
3294 if (type_type == MONO_TYPE_CLASS) {
3295 if (class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT)
3297 //XXX stringify this argument
3298 mono_error_set_bad_image (error, image, "Expected reference type but got type kind %d", class_type);
3302 g_assert (type_type == MONO_TYPE_VALUETYPE);
3303 switch (class_type) {
3304 case MONO_TYPE_BOOLEAN:
3305 case MONO_TYPE_CHAR:
3318 case MONO_TYPE_CLASS:
3321 //XXX stringify this argument
3322 mono_error_set_bad_image (error, image, "Expected value type but got type kind %d", class_type);
3328 verify_var_type_and_container (MonoImage *image, int var_type, MonoGenericContainer *container, MonoError *error)
3330 mono_error_init (error);
3331 if (var_type == MONO_TYPE_MVAR) {
3332 if (!container->is_method) { //MVAR and a method container
3333 mono_error_set_bad_image (error, image, "MVAR parsed in a context without a method container");
3337 if (!(!container->is_method || //VAR and class container
3338 (container->is_method && container->parent))) { //VAR and method container with parent
3339 mono_error_set_bad_image (error, image, "VAR parsed in a context without a class container");
3347 * do_mono_metadata_parse_type:
3348 * @type: MonoType to be filled in with the return value
3350 * @generic_context: generics_context
3351 * @transient: whenever to allocate data from the heap
3352 * @ptr: pointer to the encoded type
3353 * @rptr: pointer where the end of the encoded type is saved
3355 * Internal routine used to "fill" the contents of @type from an
3356 * allocated pointer. This is done this way to avoid doing too
3357 * many mini-allocations (particularly for the MonoFieldType which
3358 * most of the time is just a MonoType, but sometimes might be augmented).
3360 * This routine is used by mono_metadata_parse_type and
3361 * mono_metadata_parse_field_type
3363 * This extracts a Type as specified in Partition II (22.2.12)
3365 * Returns: FALSE if the type could not be loaded
3368 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3369 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
3371 mono_error_init (error);
3373 type->type = (MonoTypeEnum)mono_metadata_decode_value (ptr, &ptr);
3375 switch (type->type){
3376 case MONO_TYPE_VOID:
3377 case MONO_TYPE_BOOLEAN:
3378 case MONO_TYPE_CHAR:
3391 case MONO_TYPE_STRING:
3392 case MONO_TYPE_OBJECT:
3393 case MONO_TYPE_TYPEDBYREF:
3395 case MONO_TYPE_VALUETYPE:
3396 case MONO_TYPE_CLASS: {
3399 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3400 klass = mono_class_get_checked (m, token, error);
3401 type->data.klass = klass;
3405 if (!compare_type_literals (m, klass->byval_arg.type, type->type, error))
3410 case MONO_TYPE_SZARRAY: {
3411 MonoType *etype = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3415 type->data.klass = mono_class_from_mono_type (etype);
3418 mono_metadata_free_type (etype);
3420 g_assert (type->data.klass); //This was previously a check for NULL, but mcfmt should never fail. It can return a borken MonoClass, but should return at least something.
3423 case MONO_TYPE_PTR: {
3424 type->data.type = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3425 if (!type->data.type)
3429 case MONO_TYPE_FNPTR: {
3430 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, error);
3431 if (!type->data.method)
3435 case MONO_TYPE_ARRAY: {
3436 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr, error);
3437 if (!type->data.array)
3441 case MONO_TYPE_MVAR:
3442 case MONO_TYPE_VAR: {
3443 if (container && !verify_var_type_and_container (m, type->type, container, error))
3446 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr, error);
3447 if (!type->data.generic_param)
3452 case MONO_TYPE_GENERICINST: {
3453 if (!do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr, error))
3458 mono_error_set_bad_image (error, m, "type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3468 * mono_metadata_free_type:
3469 * @type: type to free
3471 * Free the memory allocated for type @type which is allocated on the heap.
3474 mono_metadata_free_type (MonoType *type)
3476 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3479 switch (type->type){
3480 case MONO_TYPE_OBJECT:
3481 case MONO_TYPE_STRING:
3482 if (!type->data.klass)
3485 case MONO_TYPE_CLASS:
3486 case MONO_TYPE_VALUETYPE:
3487 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3491 mono_metadata_free_type (type->data.type);
3493 case MONO_TYPE_FNPTR:
3494 mono_metadata_free_method_signature (type->data.method);
3496 case MONO_TYPE_ARRAY:
3497 mono_metadata_free_array (type->data.array);
3508 hex_dump (const char *buffer, int base, int count)
3510 int show_header = 1;
3518 for (i = 0; i < count; i++){
3521 printf ("\n0x%08x: ", (unsigned char) base + i);
3523 printf ("%02x ", (unsigned char) (buffer [i]));
3530 * @ptr: Points to the beginning of the Section Data (25.3)
3532 static MonoExceptionClause*
3533 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr, MonoError *error)
3535 unsigned char sect_data_flags;
3537 guint32 sect_data_len;
3538 MonoExceptionClause* clauses = NULL;
3540 mono_error_init (error);
3543 /* align on 32-bit boundary */
3544 ptr = dword_align (ptr);
3545 sect_data_flags = *ptr;
3548 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3550 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3553 sect_data_len = ptr [0];
3557 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3558 const unsigned char *p = dword_align (ptr);
3560 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3561 /* we could just store a pointer if we don't need to byteswap */
3562 clauses = (MonoExceptionClause *)g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3563 for (i = 0; i < *num_clauses; ++i) {
3564 MonoExceptionClause *ec = &clauses [i];
3567 ec->flags = read32 (p);
3568 ec->try_offset = read32 (p + 4);
3569 ec->try_len = read32 (p + 8);
3570 ec->handler_offset = read32 (p + 12);
3571 ec->handler_len = read32 (p + 16);
3572 tof_value = read32 (p + 20);
3575 ec->flags = read16 (p);
3576 ec->try_offset = read16 (p + 2);
3577 ec->try_len = *(p + 4);
3578 ec->handler_offset = read16 (p + 5);
3579 ec->handler_len = *(p + 7);
3580 tof_value = read32 (p + 8);
3583 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3584 ec->data.filter_offset = tof_value;
3585 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3586 ec->data.catch_class = NULL;
3588 ec->data.catch_class = mono_class_get_checked (m, tof_value, error);
3589 if (!is_ok (error)) {
3595 ec->data.catch_class = NULL;
3597 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3601 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3602 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3609 * mono_method_get_header_summary:
3610 * @method: The method to get the header.
3611 * @summary: Where to store the header
3614 * Returns: TRUE if the header was properly decoded.
3617 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3623 unsigned char flags, format;
3626 /*Only the GMD has a pointer to the metadata.*/
3627 while (method->is_inflated)
3628 method = ((MonoMethodInflated*)method)->declaring;
3630 summary->code_size = 0;
3631 summary->has_clauses = FALSE;
3633 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3634 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))
3637 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3638 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3641 summary->code_size = header->code_size;
3642 summary->has_clauses = header->num_clauses > 0;
3647 idx = mono_metadata_token_index (method->token);
3648 img = method->klass->image;
3649 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3651 /*We must run the verifier since we'll be decoding it.*/
3652 if (!mono_verifier_verify_method_header (img, rva, NULL))
3655 ptr = mono_image_rva_map (img, rva);
3659 flags = *(const unsigned char *)ptr;
3660 format = flags & METHOD_HEADER_FORMAT_MASK;
3663 case METHOD_HEADER_TINY_FORMAT:
3665 summary->code_size = flags >> 2;
3667 case METHOD_HEADER_FAT_FORMAT:
3668 fat_flags = read16 (ptr);
3670 summary->code_size = read32 (ptr);
3671 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3672 summary->has_clauses = TRUE;
3681 * mono_metadata_parse_mh_full:
3682 * @m: metadata context
3683 * @generic_context: generics context
3684 * @ptr: pointer to the method header.
3686 * Decode the method header at @ptr, including pointer to the IL code,
3687 * info about local variables and optional exception tables.
3688 * This is a Mono runtime internal function.
3690 * LOCKING: Acquires the loader lock.
3692 * Returns: a transient MonoMethodHeader allocated from the heap.
3695 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr, MonoError *error)
3697 MonoMethodHeader *mh = NULL;
3698 unsigned char flags = *(const unsigned char *) ptr;
3699 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3701 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3702 const unsigned char *code;
3703 MonoExceptionClause* clauses = NULL;
3704 int num_clauses = 0;
3705 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3706 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3708 mono_error_init (error);
3711 mono_error_set_bad_image (error, m, "Method header with null pointer");
3716 case METHOD_HEADER_TINY_FORMAT:
3717 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3720 mh->is_transient = TRUE;
3721 local_var_sig_tok = 0;
3722 mh->code_size = flags >> 2;
3723 mh->code = (unsigned char*)ptr;
3725 case METHOD_HEADER_FAT_FORMAT:
3726 fat_flags = read16 (ptr);
3728 max_stack = read16 (ptr);
3730 code_size = read32 (ptr);
3732 local_var_sig_tok = read32 (ptr);
3735 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3740 code = (unsigned char*)ptr;
3742 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3746 * There are more sections
3748 ptr = (char*)code + code_size;
3751 mono_error_set_bad_image (error, m, "Invalid method header format %d", format);
3755 if (local_var_sig_tok) {
3756 int idx = (local_var_sig_tok & 0xffffff)-1;
3757 if (idx >= t->rows || idx < 0) {
3758 mono_error_set_bad_image (error, m, "Invalid method header local vars signature token 0x%8x", idx);
3761 mono_metadata_decode_row (t, idx, cols, 1);
3763 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL)) {
3764 mono_error_set_bad_image (error, m, "Method header locals signature 0x%8x verification failed", idx);
3768 if (fat_flags & METHOD_HEADER_MORE_SECTS) {
3769 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr, error);
3773 if (local_var_sig_tok) {
3774 const char *locals_ptr;
3777 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3778 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3779 if (*locals_ptr != 0x07)
3780 g_warning ("wrong signature for locals blob");
3782 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3783 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3784 mh->num_locals = len;
3785 for (i = 0; i < len; ++i) {
3786 mh->locals [i] = mono_metadata_parse_type_internal (m, container, 0, TRUE, locals_ptr, &locals_ptr, error);
3791 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3794 mh->code_size = code_size;
3795 mh->max_stack = max_stack;
3796 mh->is_transient = TRUE;
3797 mh->init_locals = init_locals;
3799 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3800 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3802 mh->clauses = clausesp;
3803 mh->num_clauses = num_clauses;
3814 * mono_metadata_parse_mh:
3815 * @generic_context: generics context
3816 * @ptr: pointer to the method header.
3818 * Decode the method header at @ptr, including pointer to the IL code,
3819 * info about local variables and optional exception tables.
3821 * Returns: a transient MonoMethodHeader allocated from the heap.
3824 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3827 MonoMethodHeader *header = mono_metadata_parse_mh_full (m, NULL, ptr, &error);
3828 mono_error_cleanup (&error);
3833 * mono_metadata_free_mh:
3834 * @mh: a method header
3836 * Free the memory allocated for the method header.
3839 mono_metadata_free_mh (MonoMethodHeader *mh)
3843 /* If it is not transient it means it's part of a wrapper method,
3844 * or a SRE-generated method, so the lifetime in that case is
3845 * dictated by the method's own lifetime
3847 if (mh->is_transient) {
3848 for (i = 0; i < mh->num_locals; ++i)
3849 mono_metadata_free_type (mh->locals [i]);
3855 * mono_method_header_get_code:
3856 * @header: a MonoMethodHeader pointer
3857 * @code_size: memory location for returning the code size
3858 * @max_stack: memory location for returning the max stack
3860 * Method header accessor to retreive info about the IL code properties:
3861 * a pointer to the IL code itself, the size of the code and the max number
3862 * of stack slots used by the code.
3864 * Returns: pointer to the IL code represented by the method header.
3866 const unsigned char*
3867 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3870 *code_size = header->code_size;
3872 *max_stack = header->max_stack;
3873 return header->code;
3877 * mono_method_header_get_locals:
3878 * @header: a MonoMethodHeader pointer
3879 * @num_locals: memory location for returning the number of local variables
3880 * @init_locals: memory location for returning the init_locals flag
3882 * Method header accessor to retreive info about the local variables:
3883 * an array of local types, the number of locals and whether the locals
3884 * are supposed to be initialized to 0 on method entry
3886 * Returns: pointer to an array of types of the local variables
3889 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3892 *num_locals = header->num_locals;
3894 *init_locals = header->init_locals;
3895 return header->locals;
3899 * mono_method_header_get_num_clauses:
3900 * @header: a MonoMethodHeader pointer
3902 * Method header accessor to retreive the number of exception clauses.
3904 * Returns: the number of exception clauses present
3907 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3909 return header->num_clauses;
3913 * mono_method_header_get_clauses:
3914 * @header: a MonoMethodHeader pointer
3915 * @method: MonoMethod the header belongs to
3916 * @iter: pointer to a iterator
3917 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3919 * Get the info about the exception clauses in the method. Set *iter to NULL to
3920 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3921 * At each iteration, the structure pointed to by clause if filled with the
3922 * exception clause information.
3924 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3928 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3930 MonoExceptionClause *sc;
3931 /* later we'll be able to use this interface to parse the clause info on demand,
3932 * without allocating anything.
3934 if (!iter || !header->num_clauses)
3937 *iter = sc = header->clauses;
3941 sc = (MonoExceptionClause *)*iter;
3943 if (sc < header->clauses + header->num_clauses) {
3952 * mono_metadata_parse_field_type:
3953 * @m: metadata context to extract information from
3954 * @ptr: pointer to the field signature
3955 * @rptr: pointer updated to match the end of the decoded stream
3957 * Parses the field signature, and returns the type information for it.
3959 * Returns: The MonoType that was extracted from @ptr.
3962 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3965 MonoType * type = mono_metadata_parse_type_internal (m, NULL, field_flags, FALSE, ptr, rptr, &error);
3966 mono_error_cleanup (&error);
3971 * mono_metadata_parse_param:
3972 * @m: metadata context to extract information from
3973 * @ptr: pointer to the param signature
3974 * @rptr: pointer updated to match the end of the decoded stream
3976 * Parses the param signature, and returns the type information for it.
3978 * Returns: The MonoType that was extracted from @ptr.
3981 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3984 MonoType * type = mono_metadata_parse_type_internal (m, NULL, 0, FALSE, ptr, rptr, &error);
3985 mono_error_cleanup (&error);
3990 * mono_metadata_token_from_dor:
3991 * @dor_token: A TypeDefOrRef coded index
3993 * dor_token is a TypeDefOrRef coded index: it contains either
3994 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3995 * bits contain an index into the table.
3997 * Returns: an expanded token
4000 mono_metadata_token_from_dor (guint32 dor_index)
4004 table = dor_index & 0x03;
4005 idx = dor_index >> 2;
4008 case 0: /* TypeDef */
4009 return MONO_TOKEN_TYPE_DEF | idx;
4010 case 1: /* TypeRef */
4011 return MONO_TOKEN_TYPE_REF | idx;
4012 case 2: /* TypeSpec */
4013 return MONO_TOKEN_TYPE_SPEC | idx;
4015 g_assert_not_reached ();
4022 * We use this to pass context information to the row locator
4025 int idx; /* The index that we are trying to locate */
4026 int col_idx; /* The index in the row where idx may be stored */
4027 MonoTableInfo *t; /* pointer to the table */
4032 * How the row locator works.
4037 * ___|___------> _______
4040 * A column in the rows of table A references an index in table B.
4041 * For example A may be the TYPEDEF table and B the METHODDEF table.
4043 * Given an index in table B we want to get the row in table A
4044 * where the column n references our index in B.
4046 * In the locator_t structure:
4048 * col_idx is the column number
4049 * index is the index in table B
4050 * result will be the index in table A
4053 * Table A Table B column (in table A)
4054 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
4055 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
4056 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
4057 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
4058 * METHODSEM PROPERTY ASSOCIATION (encoded index)
4060 * Note that we still don't support encoded indexes.
4064 typedef_locator (const void *a, const void *b)
4066 locator_t *loc = (locator_t *) a;
4067 const char *bb = (const char *) b;
4068 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
4069 guint32 col, col_next;
4071 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
4077 * Need to check that the next row is valid.
4079 if (typedef_index + 1 < loc->t->rows) {
4080 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
4081 if (loc->idx >= col_next)
4084 if (col == col_next)
4088 loc->result = typedef_index;
4094 table_locator (const void *a, const void *b)
4096 locator_t *loc = (locator_t *) a;
4097 const char *bb = (const char *) b;
4098 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4101 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4103 if (loc->idx == col) {
4104 loc->result = table_index;
4114 declsec_locator (const void *a, const void *b)
4116 locator_t *loc = (locator_t *) a;
4117 const char *bb = (const char *) b;
4118 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4121 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4123 if (loc->idx == col) {
4124 loc->result = table_index;
4136 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
4137 * which contains IDX.
4140 search_ptr_table (MonoImage *image, int table, int idx)
4142 MonoTableInfo *ptrdef = &image->tables [table];
4145 /* Use a linear search to find our index in the table */
4146 for (i = 0; i < ptrdef->rows; i ++)
4147 /* All the Ptr tables have the same structure */
4148 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
4151 if (i < ptrdef->rows)
4158 * mono_metadata_typedef_from_field:
4159 * @meta: metadata context
4160 * @index: FieldDef token
4162 * Returns: the 1-based index into the TypeDef table of the type that
4163 * declared the field described by @index, or 0 if not found.
4166 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
4168 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4174 loc.idx = mono_metadata_token_index (index);
4175 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
4178 if (meta->uncompressed_metadata)
4179 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4181 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4184 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4185 return loc.result + 1;
4189 * mono_metadata_typedef_from_method:
4190 * @meta: metadata context
4191 * @index: MethodDef token
4193 * Returns: the 1-based index into the TypeDef table of the type that
4194 * declared the method described by @index. 0 if not found.
4197 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4199 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4205 loc.idx = mono_metadata_token_index (index);
4206 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4209 if (meta->uncompressed_metadata)
4210 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4212 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4215 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4216 return loc.result + 1;
4220 * mono_metadata_interfaces_from_typedef_full:
4221 * @meta: metadata context
4222 * @index: typedef token
4223 * @interfaces: Out parameter used to store the interface array
4224 * @count: Out parameter used to store the number of interfaces
4225 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4226 * @context: The generic context
4228 * The array of interfaces that the @index typedef token implements is returned in
4229 * @interfaces. The number of elements in the array is returned in @count.
4232 * Returns: TRUE on success, FALSE on failure.
4235 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4237 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4240 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4246 mono_error_init (error);
4251 loc.idx = mono_metadata_token_index (index);
4252 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4255 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4260 * We may end up in the middle of the rows...
4263 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4269 while (pos < tdef->rows) {
4270 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4271 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4276 if (heap_alloc_result)
4277 result = g_new0 (MonoClass*, pos - start);
4279 result = (MonoClass **)mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4282 while (pos < tdef->rows) {
4285 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4286 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4288 iface = mono_class_get_and_inflate_typespec_checked (
4289 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4292 result [pos - start] = iface;
4295 *count = pos - start;
4296 *interfaces = result;
4301 * @meta: metadata context
4302 * @index: typedef token
4303 * @count: Out parameter used to store the number of interfaces
4305 * The array of interfaces that the @index typedef token implements is returned in
4306 * @interfaces. The number of elements in the array is returned in @count. The returned
4307 * array is g_malloc'd and the caller must free it.
4309 * LOCKING: Acquires the loader lock .
4311 * Returns: the interface array on success, NULL on failure.
4315 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4318 MonoClass **interfaces = NULL;
4321 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4322 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4330 * mono_metadata_nested_in_typedef:
4331 * @meta: metadata context
4332 * @index: typedef token
4334 * Returns: the 1-based index into the TypeDef table of the type
4335 * where the type described by @index is nested.
4336 * Returns 0 if @index describes a non-nested type.
4339 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4341 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4347 loc.idx = mono_metadata_token_index (index);
4348 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4351 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4354 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4355 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4359 * mono_metadata_nesting_typedef:
4360 * @meta: metadata context
4361 * @index: typedef token
4363 * Returns: the 1-based index into the TypeDef table of the first type
4364 * that is nested inside the type described by @index. The search starts at
4365 * @start_index. returns 0 if no such type is found.
4368 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4370 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4372 guint32 class_index = mono_metadata_token_index (index);
4377 start = start_index;
4379 while (start <= tdef->rows) {
4380 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4386 if (start > tdef->rows)
4393 * mono_metadata_packing_from_typedef:
4394 * @meta: metadata context
4395 * @index: token representing a type
4397 * Returns: the info stored in the ClassLAyout table for the given typedef token
4398 * into the @packing and @size pointers.
4399 * Returns 0 if the info is not found.
4402 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4404 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4406 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4411 loc.idx = mono_metadata_token_index (index);
4412 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4415 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4418 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4420 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4422 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4424 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4425 return loc.result + 1;
4429 * mono_metadata_custom_attrs_from_index:
4430 * @meta: metadata context
4431 * @index: token representing the parent
4433 * Returns: the 1-based index into the CustomAttribute table of the first
4434 * attribute which belongs to the metadata object described by @index.
4435 * Returns 0 if no such attribute is found.
4438 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4440 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4447 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4450 /* FIXME: Index translation */
4452 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4455 /* Find the first entry by searching backwards */
4456 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4459 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4460 return loc.result + 1;
4464 * mono_metadata_declsec_from_index:
4465 * @meta: metadata context
4466 * @index: token representing the parent
4468 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4469 * attribute which belongs to the metadata object described by @index.
4470 * Returns -1 if no such attribute is found.
4473 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4475 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4482 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4485 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4488 /* Find the first entry by searching backwards */
4489 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4496 * mono_metadata_localscope_from_methoddef:
4497 * @meta: metadata context
4498 * @index: methoddef index
4500 * Returns: the 1-based index into the LocalScope table of the first
4501 * scope which belongs to the method described by @index.
4502 * Returns 0 if no such row is found.
4505 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index)
4507 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_LOCALSCOPE];
4514 loc.col_idx = MONO_LOCALSCOPE_METHOD;
4517 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4520 /* Find the first entry by searching backwards */
4521 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_LOCALSCOPE_METHOD) == index))
4524 return loc.result + 1;
4529 mono_backtrace (int limit)
4534 backtrace (array, limit);
4535 names = backtrace_symbols (array, limit);
4536 for (i =0; i < limit; ++i) {
4537 g_print ("\t%s\n", names [i]);
4543 static int i8_align;
4546 * mono_type_set_alignment:
4548 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4549 * This should only be used in AOT mode since the resulting layout will not match the
4553 mono_type_set_alignment (MonoTypeEnum type, int align)
4555 /* Support only a few types whose alignment is abi dependent */
4561 g_assert_not_reached ();
4568 * @t: the type to return the size of
4570 * Returns: the number of bytes required to hold an instance of this
4574 mono_type_size (MonoType *t, int *align)
4576 MonoTypeEnum simple_type;
4583 *align = MONO_ABI_ALIGNOF (gpointer);
4584 return MONO_ABI_SIZEOF (gpointer);
4587 simple_type = t->type;
4589 switch (simple_type) {
4590 case MONO_TYPE_VOID:
4593 case MONO_TYPE_BOOLEAN:
4594 *align = MONO_ABI_ALIGNOF (gint8);
4598 *align = MONO_ABI_ALIGNOF (gint8);
4600 case MONO_TYPE_CHAR:
4603 *align = MONO_ABI_ALIGNOF (gint16);
4607 *align = MONO_ABI_ALIGNOF (gint32);
4610 *align = MONO_ABI_ALIGNOF (float);
4614 *align = MONO_ABI_ALIGNOF (gint64);
4617 *align = MONO_ABI_ALIGNOF (double);
4621 *align = MONO_ABI_ALIGNOF (gpointer);
4622 return MONO_ABI_SIZEOF (gpointer);
4623 case MONO_TYPE_VALUETYPE: {
4624 if (t->data.klass->enumtype)
4625 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4627 return mono_class_value_size (t->data.klass, (guint32*)align);
4629 case MONO_TYPE_STRING:
4630 case MONO_TYPE_OBJECT:
4631 case MONO_TYPE_CLASS:
4632 case MONO_TYPE_SZARRAY:
4634 case MONO_TYPE_FNPTR:
4635 case MONO_TYPE_ARRAY:
4636 *align = MONO_ABI_ALIGNOF (gpointer);
4637 return MONO_ABI_SIZEOF (gpointer);
4638 case MONO_TYPE_TYPEDBYREF:
4639 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4640 case MONO_TYPE_GENERICINST: {
4641 MonoGenericClass *gclass = t->data.generic_class;
4642 MonoClass *container_class = gclass->container_class;
4644 // g_assert (!gclass->inst->is_open);
4646 if (container_class->valuetype) {
4647 if (container_class->enumtype)
4648 return mono_type_size (mono_class_enum_basetype (container_class), align);
4650 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4652 *align = MONO_ABI_ALIGNOF (gpointer);
4653 return MONO_ABI_SIZEOF (gpointer);
4657 case MONO_TYPE_MVAR:
4658 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4659 *align = MONO_ABI_ALIGNOF (gpointer);
4660 return MONO_ABI_SIZEOF (gpointer);
4662 /* The gparam can only match types given by gshared_constraint */
4663 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4667 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4673 * mono_type_stack_size:
4674 * @t: the type to return the size it uses on the stack
4676 * Returns: the number of bytes required to hold an instance of this
4677 * type on the runtime stack
4680 mono_type_stack_size (MonoType *t, int *align)
4682 return mono_type_stack_size_internal (t, align, FALSE);
4686 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4689 MonoTypeEnum simple_type;
4690 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4691 int stack_slot_size = MONO_ABI_SIZEOF (gpointer);
4692 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4693 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4694 int stack_slot_size = SIZEOF_REGISTER;
4695 int stack_slot_align = SIZEOF_REGISTER;
4698 g_assert (t != NULL);
4704 *align = stack_slot_align;
4705 return stack_slot_size;
4708 simple_type = t->type;
4709 switch (simple_type) {
4710 case MONO_TYPE_BOOLEAN:
4711 case MONO_TYPE_CHAR:
4720 case MONO_TYPE_STRING:
4721 case MONO_TYPE_OBJECT:
4722 case MONO_TYPE_CLASS:
4723 case MONO_TYPE_SZARRAY:
4725 case MONO_TYPE_FNPTR:
4726 case MONO_TYPE_ARRAY:
4727 *align = stack_slot_align;
4728 return stack_slot_size;
4730 case MONO_TYPE_MVAR:
4731 g_assert (allow_open);
4732 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4733 *align = stack_slot_align;
4734 return stack_slot_size;
4736 /* The gparam can only match types given by gshared_constraint */
4737 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4739 case MONO_TYPE_TYPEDBYREF:
4740 *align = stack_slot_align;
4741 return stack_slot_size * 3;
4743 *align = MONO_ABI_ALIGNOF (float);
4744 return sizeof (float);
4747 *align = MONO_ABI_ALIGNOF (gint64);
4748 return sizeof (gint64);
4750 *align = MONO_ABI_ALIGNOF (double);
4751 return sizeof (double);
4752 case MONO_TYPE_VALUETYPE: {
4755 if (t->data.klass->enumtype)
4756 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4758 size = mono_class_value_size (t->data.klass, (guint32*)align);
4760 *align = *align + stack_slot_align - 1;
4761 *align &= ~(stack_slot_align - 1);
4763 size += stack_slot_size - 1;
4764 size &= ~(stack_slot_size - 1);
4769 case MONO_TYPE_GENERICINST: {
4770 MonoGenericClass *gclass = t->data.generic_class;
4771 MonoClass *container_class = gclass->container_class;
4774 g_assert (!gclass->context.class_inst->is_open);
4776 if (container_class->valuetype) {
4777 if (container_class->enumtype)
4778 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4780 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4782 *align = *align + stack_slot_align - 1;
4783 *align &= ~(stack_slot_align - 1);
4785 size += stack_slot_size - 1;
4786 size &= ~(stack_slot_size - 1);
4791 *align = stack_slot_align;
4792 return stack_slot_size;
4796 g_error ("type 0x%02x unknown", t->type);
4802 mono_type_generic_inst_is_valuetype (MonoType *type)
4804 g_assert (type->type == MONO_TYPE_GENERICINST);
4805 return type->data.generic_class->container_class->valuetype;
4809 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4811 return gclass->container_class->valuetype;
4815 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4817 MonoGenericInst *i1 = g1->context.class_inst;
4818 MonoGenericInst *i2 = g2->context.class_inst;
4820 if (g1->is_dynamic != g2->is_dynamic)
4822 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4824 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4826 return g1->is_tb_open == g2->is_tb_open;
4830 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4832 MonoGenericInst *i1 = g1->context.class_inst;
4833 MonoGenericInst *i2 = mono_class_get_generic_container (c2)->context.class_inst;
4835 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4837 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4839 return !g1->is_tb_open;
4843 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4845 /* FIXME: check if this seed is good enough */
4846 guint hash = 0xc01dfee7;
4847 if (context->class_inst)
4848 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4849 if (context->method_inst)
4850 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4855 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4857 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4861 * mono_metadata_str_hash:
4863 * This should be used instead of g_str_hash for computing hash codes visible
4864 * outside this module, since g_str_hash () is not guaranteed to be stable
4865 * (its not the same in eglib for example).
4868 mono_metadata_str_hash (gconstpointer v1)
4870 /* Same as g_str_hash () in glib */
4871 char *p = (char *) v1;
4876 hash = (hash << 5) - hash + *p;
4883 * mono_metadata_type_hash:
4886 * Computes an hash value for @t1 to be used in GHashTable.
4887 * The returned hash is guaranteed to be the same across executions.
4890 mono_metadata_type_hash (MonoType *t1)
4892 guint hash = t1->type;
4894 hash |= t1->byref << 6; /* do not collide with t1->type values */
4896 case MONO_TYPE_VALUETYPE:
4897 case MONO_TYPE_CLASS:
4898 case MONO_TYPE_SZARRAY: {
4899 MonoClass *klass = t1->data.klass;
4901 * Dynamic classes must not be hashed on their type since it can change
4902 * during runtime. For example, if we hash a reference type that is
4903 * later made into a valuetype.
4905 * This is specially problematic with generic instances since they are
4906 * inserted in a bunch of hash tables before been finished.
4908 if (image_is_dynamic (klass->image))
4909 return (t1->byref << 6) | mono_metadata_str_hash (klass->name);
4910 return ((hash << 5) - hash) ^ mono_metadata_str_hash (klass->name);
4913 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4914 case MONO_TYPE_ARRAY:
4915 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4916 case MONO_TYPE_GENERICINST:
4917 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4919 case MONO_TYPE_MVAR:
4920 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
4927 mono_metadata_generic_param_hash (MonoGenericParam *p)
4930 MonoGenericParamInfo *info;
4932 hash = (mono_generic_param_num (p) << 2);
4933 if (p->gshared_constraint)
4934 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
4935 info = mono_generic_param_info (p);
4936 /* Can't hash on the owner klass/method, since those might not be set when this is called */
4938 hash = ((hash << 5) - hash) ^ info->token;
4943 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4947 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4949 if (p1->gshared_constraint && p2->gshared_constraint) {
4950 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
4953 if (p1->gshared_constraint != p2->gshared_constraint)
4958 * We have to compare the image as well because if we didn't,
4959 * the generic_inst_cache lookup wouldn't care about the image
4960 * of generic params, so what could happen is that a generic
4961 * inst with params from image A is put into the cache, then
4962 * image B gets that generic inst from the cache, image A is
4963 * unloaded, so the inst is deleted, but image B still retains
4966 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2))
4970 * If `signature_only' is true, we're comparing two (method) signatures.
4971 * In this case, the owner of two type parameters doesn't need to match.
4974 return signature_only;
4978 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
4980 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
4984 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4988 if (mono_class_is_ginst (c1) && mono_class_is_ginst (c2))
4989 return _mono_metadata_generic_class_equal (mono_class_get_generic_class (c1), mono_class_get_generic_class (c2), signature_only);
4990 if (mono_class_is_ginst (c1) && mono_class_is_gtd (c2))
4991 return _mono_metadata_generic_class_container_equal (mono_class_get_generic_class (c1), c2, signature_only);
4992 if (mono_class_is_gtd (c1) && mono_class_is_ginst (c2))
4993 return _mono_metadata_generic_class_container_equal (mono_class_get_generic_class (c2), c1, signature_only);
4994 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4995 return mono_metadata_generic_param_equal_internal (
4996 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4997 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4998 return mono_metadata_generic_param_equal_internal (
4999 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
5000 if (signature_only &&
5001 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
5002 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
5003 if (signature_only &&
5004 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
5005 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
5010 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
5012 gpointer iter1 = 0, iter2 = 0;
5016 if (s1->call_convention != s2->call_convention)
5018 if (s1->sentinelpos != s2->sentinelpos)
5020 if (s1->hasthis != s2->hasthis)
5022 if (s1->explicit_this != s2->explicit_this)
5024 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
5026 if (s1->param_count != s2->param_count)
5030 MonoType *t1 = mono_signature_get_params (s1, &iter1);
5031 MonoType *t2 = mono_signature_get_params (s2, &iter2);
5033 if (t1 == NULL || t2 == NULL)
5035 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
5041 * mono_metadata_type_equal:
5044 * @signature_only: If true, treat ginsts as equal which are instantiated separately but have equal positional value
5046 * Determine if @t1 and @t2 represent the same type.
5047 * Returns: #TRUE if @t1 and @t2 are equal.
5050 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
5052 if (t1->type != t2->type || t1->byref != t2->byref)
5056 case MONO_TYPE_VOID:
5057 case MONO_TYPE_BOOLEAN:
5058 case MONO_TYPE_CHAR:
5069 case MONO_TYPE_STRING:
5072 case MONO_TYPE_OBJECT:
5073 case MONO_TYPE_TYPEDBYREF:
5075 case MONO_TYPE_VALUETYPE:
5076 case MONO_TYPE_CLASS:
5077 case MONO_TYPE_SZARRAY:
5078 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
5080 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
5081 case MONO_TYPE_ARRAY:
5082 if (t1->data.array->rank != t2->data.array->rank)
5084 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
5085 case MONO_TYPE_GENERICINST:
5086 return _mono_metadata_generic_class_equal (
5087 t1->data.generic_class, t2->data.generic_class, signature_only);
5089 return mono_metadata_generic_param_equal_internal (
5090 t1->data.generic_param, t2->data.generic_param, signature_only);
5091 case MONO_TYPE_MVAR:
5092 return mono_metadata_generic_param_equal_internal (
5093 t1->data.generic_param, t2->data.generic_param, signature_only);
5094 case MONO_TYPE_FNPTR:
5095 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
5097 g_error ("implement type compare for %0x!", t1->type);
5105 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
5107 return do_mono_metadata_type_equal (t1, t2, FALSE);
5111 * mono_metadata_type_equal_full:
5114 * @signature_only: if signature only comparison should be made
5116 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
5117 * behaves the same way as mono_metadata_type_equal.
5118 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
5119 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
5122 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
5124 return do_mono_metadata_type_equal (t1, t2, signature_only);
5128 * mono_metadata_signature_equal:
5129 * @sig1: a signature
5130 * @sig2: another signature
5132 * Determine if @sig1 and @sig2 represent the same signature, with the
5133 * same number of arguments and the same types.
5134 * Returns: #TRUE if @sig1 and @sig2 are equal.
5137 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
5141 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
5144 if (sig1->generic_param_count != sig2->generic_param_count)
5148 * We're just comparing the signatures of two methods here:
5150 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
5151 * U and V are equal here.
5153 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
5156 for (i = 0; i < sig1->param_count; i++) {
5157 MonoType *p1 = sig1->params[i];
5158 MonoType *p2 = sig2->params[i];
5160 /* if (p1->attrs != p2->attrs)
5163 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
5167 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
5173 * mono_metadata_type_dup:
5174 * @image: image to alloc memory from
5175 * @original: type to duplicate
5177 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
5180 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
5183 int sizeof_o = MONO_SIZEOF_TYPE;
5185 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
5187 r = image ? (MonoType *)mono_image_alloc0 (image, sizeof_o) : (MonoType *)g_malloc (sizeof_o);
5189 memcpy (r, o, sizeof_o);
5191 if (o->type == MONO_TYPE_PTR) {
5192 r->data.type = mono_metadata_type_dup (image, o->data.type);
5193 } else if (o->type == MONO_TYPE_ARRAY) {
5194 r->data.array = mono_dup_array_type (image, o->data.array);
5195 } else if (o->type == MONO_TYPE_FNPTR) {
5196 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
5197 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
5203 mono_signature_hash (MonoMethodSignature *sig)
5205 guint i, res = sig->ret->type;
5207 for (i = 0; i < sig->param_count; i++)
5208 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5214 * mono_metadata_encode_value:
5215 * @value: value to encode
5216 * @buf: buffer where to write the compressed representation
5217 * @endbuf: pointer updated to point at the end of the encoded output
5219 * Encodes the value @value in the compressed representation used
5220 * in metadata and stores the result in @buf. @buf needs to be big
5221 * enough to hold the data (4 bytes).
5224 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5230 else if (value < 0x4000) {
5231 p [0] = 0x80 | (value >> 8);
5232 p [1] = value & 0xff;
5235 p [0] = (value >> 24) | 0xc0;
5236 p [1] = (value >> 16) & 0xff;
5237 p [2] = (value >> 8) & 0xff;
5238 p [3] = value & 0xff;
5246 * mono_metadata_field_info:
5247 * @meta: the Image the field is defined in
5248 * @index: the index in the field table representing the field
5249 * @offset: a pointer to an integer where to store the offset that
5250 * may have been specified for the field in a FieldLayout table
5251 * @rva: a pointer to the RVA of the field data in the image that
5252 * may have been defined in a FieldRVA table
5253 * @marshal_spec: a pointer to the marshal spec that may have been
5254 * defined for the field in a FieldMarshal table.
5256 * Gather info for field @index that may have been defined in the FieldLayout,
5257 * FieldRVA and FieldMarshal tables.
5258 * Either of offset, rva and marshal_spec can be NULL if you're not interested
5262 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5263 MonoMarshalSpec **marshal_spec)
5265 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5269 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5270 MonoMarshalSpec **marshal_spec)
5272 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5276 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5277 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5279 MonoTableInfo *tdef;
5282 loc.idx = index + 1;
5283 if (meta->uncompressed_metadata)
5284 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5287 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5289 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5292 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5293 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5295 *offset = (guint32)-1;
5299 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5301 loc.col_idx = MONO_FIELD_RVA_FIELD;
5304 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5306 * LAMESPEC: There is no signature, no nothing, just the raw data.
5308 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5316 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5317 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5324 * mono_metadata_get_constant_index:
5325 * @meta: the Image the field is defined in
5326 * @index: the token that may have a row defined in the constants table
5327 * @hint: possible position for the row
5329 * @token must be a FieldDef, ParamDef or PropertyDef token.
5331 * Returns: the index into the Constants table or 0 if not found.
5334 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5336 MonoTableInfo *tdef;
5338 guint32 index = mono_metadata_token_index (token);
5340 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5341 index <<= MONO_HASCONSTANT_BITS;
5342 switch (mono_metadata_token_table (token)) {
5343 case MONO_TABLE_FIELD:
5344 index |= MONO_HASCONSTANT_FIEDDEF;
5346 case MONO_TABLE_PARAM:
5347 index |= MONO_HASCONSTANT_PARAM;
5349 case MONO_TABLE_PROPERTY:
5350 index |= MONO_HASCONSTANT_PROPERTY;
5353 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5357 loc.col_idx = MONO_CONSTANT_PARENT;
5360 /* FIXME: Index translation */
5362 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5365 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5366 return loc.result + 1;
5372 * mono_metadata_events_from_typedef:
5373 * @meta: metadata context
5374 * @index: 0-based index (in the TypeDef table) describing a type
5376 * Returns: the 0-based index in the Event table for the events in the
5377 * type. The last event that belongs to the type (plus 1) is stored
5378 * in the @end_idx pointer.
5381 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5385 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5393 loc.col_idx = MONO_EVENT_MAP_PARENT;
5394 loc.idx = index + 1;
5396 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5399 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5400 if (loc.result + 1 < tdef->rows) {
5401 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5403 end = meta->tables [MONO_TABLE_EVENT].rows;
5411 * mono_metadata_methods_from_event:
5412 * @meta: metadata context
5413 * @index: 0-based index (in the Event table) describing a event
5415 * Returns: the 0-based index in the MethodDef table for the methods in the
5416 * event. The last method that belongs to the event (plus 1) is stored
5417 * in the @end_idx pointer.
5420 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5424 guint32 cols [MONO_METHOD_SEMA_SIZE];
5425 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5431 if (meta->uncompressed_metadata)
5432 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5435 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5436 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5438 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5443 * We may end up in the middle of the rows...
5446 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5452 while (end < msemt->rows) {
5453 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5454 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5463 * mono_metadata_properties_from_typedef:
5464 * @meta: metadata context
5465 * @index: 0-based index (in the TypeDef table) describing a type
5467 * Returns: the 0-based index in the Property table for the properties in the
5468 * type. The last property that belongs to the type (plus 1) is stored
5469 * in the @end_idx pointer.
5472 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5476 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5484 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5485 loc.idx = index + 1;
5487 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5490 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5491 if (loc.result + 1 < tdef->rows) {
5492 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5494 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5502 * mono_metadata_methods_from_property:
5503 * @meta: metadata context
5504 * @index: 0-based index (in the PropertyDef table) describing a property
5506 * Returns: the 0-based index in the MethodDef table for the methods in the
5507 * property. The last method that belongs to the property (plus 1) is stored
5508 * in the @end_idx pointer.
5511 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5515 guint32 cols [MONO_METHOD_SEMA_SIZE];
5516 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5522 if (meta->uncompressed_metadata)
5523 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5526 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5527 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5529 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5534 * We may end up in the middle of the rows...
5537 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5543 while (end < msemt->rows) {
5544 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5545 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5554 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5557 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5562 /* No index translation seems to be needed */
5565 loc.col_idx = MONO_IMPLMAP_MEMBER;
5566 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5568 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5571 return loc.result + 1;
5575 * @image: context where the image is created
5576 * @type_spec: typespec token
5577 * @deprecated use mono_type_create_from_typespec_checked that has proper error handling
5579 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5583 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5586 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5588 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5593 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5596 guint32 idx = mono_metadata_token_index (type_spec);
5598 guint32 cols [MONO_TYPESPEC_SIZE];
5600 MonoType *type, *type2;
5602 mono_error_init (error);
5604 mono_image_lock (image);
5605 type = (MonoType *)g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5606 mono_image_unlock (image);
5610 t = &image->tables [MONO_TABLE_TYPESPEC];
5612 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5613 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5615 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5616 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5620 mono_metadata_decode_value (ptr, &ptr);
5622 type = mono_metadata_parse_type_checked (image, NULL, 0, TRUE, ptr, &ptr, error);
5626 type2 = mono_metadata_type_dup (image, type);
5627 mono_metadata_free_type (type);
5629 mono_image_lock (image);
5630 type = (MonoType *)g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5631 /* We might leak some data in the image mempool if found */
5633 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5636 mono_image_unlock (image);
5643 mono_image_strndup (MonoImage *image, const char *data, guint len)
5647 return g_strndup (data, len);
5648 res = (char *)mono_image_alloc (image, len + 1);
5649 memcpy (res, data, len);
5655 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5657 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5661 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5662 * PARENT_IMAGE is the image containing the marshal spec.
5665 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5667 MonoMarshalSpec *res;
5669 const char *start = ptr;
5671 /* fixme: this is incomplete, but I cant find more infos in the specs */
5674 res = (MonoMarshalSpec *)mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5676 res = g_new0 (MonoMarshalSpec, 1);
5678 len = mono_metadata_decode_value (ptr, &ptr);
5679 res->native = (MonoMarshalNative)*ptr++;
5681 if (res->native == MONO_NATIVE_LPARRAY) {
5682 res->data.array_data.param_num = -1;
5683 res->data.array_data.num_elem = -1;
5684 res->data.array_data.elem_mult = -1;
5686 if (ptr - start <= len)
5687 res->data.array_data.elem_type = (MonoMarshalNative)*ptr++;
5688 if (ptr - start <= len)
5689 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5690 if (ptr - start <= len)
5691 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5692 if (ptr - start <= len) {
5694 * LAMESPEC: Older spec versions say this parameter comes before
5695 * num_elem. Never spec versions don't talk about elem_mult at
5696 * all, but csc still emits it, and it is used to distinguish
5697 * between param_num being 0, and param_num being omitted.
5698 * So if (param_num == 0) && (num_elem > 0), then
5699 * elem_mult == 0 -> the array size is num_elem
5700 * elem_mult == 1 -> the array size is @param_num + num_elem
5702 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5706 if (res->native == MONO_NATIVE_BYVALTSTR) {
5707 if (ptr - start <= len)
5708 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5711 if (res->native == MONO_NATIVE_BYVALARRAY) {
5712 if (ptr - start <= len)
5713 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5716 if (res->native == MONO_NATIVE_CUSTOM) {
5717 /* skip unused type guid */
5718 len = mono_metadata_decode_value (ptr, &ptr);
5720 /* skip unused native type name */
5721 len = mono_metadata_decode_value (ptr, &ptr);
5723 /* read custom marshaler type name */
5724 len = mono_metadata_decode_value (ptr, &ptr);
5725 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5727 /* read cookie string */
5728 len = mono_metadata_decode_value (ptr, &ptr);
5729 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5730 res->data.custom_data.image = parent_image;
5733 if (res->native == MONO_NATIVE_SAFEARRAY) {
5734 res->data.safearray_data.elem_type = (MonoMarshalVariant)0;
5735 res->data.safearray_data.num_elem = 0;
5736 if (ptr - start <= len)
5737 res->data.safearray_data.elem_type = (MonoMarshalVariant)*ptr++;
5738 if (ptr - start <= len)
5739 res->data.safearray_data.num_elem = *ptr++;
5745 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5747 if (spec->native == MONO_NATIVE_CUSTOM) {
5748 g_free (spec->data.custom_data.custom_name);
5749 g_free (spec->data.custom_data.cookie);
5755 * mono_type_to_unmanaged:
5757 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5758 * describing the underlying native reprensetation of the type.
5760 * In addition the value pointed by
5761 * "conv" will contain the kind of marshalling required for this
5762 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5765 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5766 gboolean unicode, MonoMarshalConv *conv)
5768 MonoMarshalConv dummy_conv;
5774 *conv = MONO_MARSHAL_CONV_NONE;
5777 return MONO_NATIVE_UINT;
5781 case MONO_TYPE_BOOLEAN:
5783 switch (mspec->native) {
5784 case MONO_NATIVE_VARIANTBOOL:
5785 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5786 return MONO_NATIVE_VARIANTBOOL;
5787 case MONO_NATIVE_BOOLEAN:
5788 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5789 return MONO_NATIVE_BOOLEAN;
5790 case MONO_NATIVE_I1:
5791 case MONO_NATIVE_U1:
5792 return mspec->native;
5794 g_error ("cant marshal bool to native type %02x", mspec->native);
5797 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5798 return MONO_NATIVE_BOOLEAN;
5799 case MONO_TYPE_CHAR:
5801 switch (mspec->native) {
5802 case MONO_NATIVE_U2:
5803 case MONO_NATIVE_U1:
5804 return mspec->native;
5806 g_error ("cant marshal char to native type %02x", mspec->native);
5809 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5810 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5811 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5812 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5813 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5814 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5815 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5816 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5817 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5818 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5819 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5820 case MONO_TYPE_STRING:
5822 switch (mspec->native) {
5823 case MONO_NATIVE_BSTR:
5824 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5825 return MONO_NATIVE_BSTR;
5826 case MONO_NATIVE_LPSTR:
5827 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5828 return MONO_NATIVE_LPSTR;
5829 case MONO_NATIVE_LPWSTR:
5830 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5831 return MONO_NATIVE_LPWSTR;
5832 case MONO_NATIVE_LPTSTR:
5833 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5834 return MONO_NATIVE_LPTSTR;
5835 case MONO_NATIVE_ANSIBSTR:
5836 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5837 return MONO_NATIVE_ANSIBSTR;
5838 case MONO_NATIVE_TBSTR:
5839 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5840 return MONO_NATIVE_TBSTR;
5841 case MONO_NATIVE_UTF8STR:
5842 *conv = MONO_MARSHAL_CONV_STR_UTF8STR;
5843 return MONO_NATIVE_UTF8STR;
5844 case MONO_NATIVE_BYVALTSTR:
5846 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5848 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5849 return MONO_NATIVE_BYVALTSTR;
5851 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);
5855 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5856 return MONO_NATIVE_LPWSTR;
5859 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5860 return MONO_NATIVE_LPSTR;
5862 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5863 case MONO_TYPE_VALUETYPE: /*FIXME*/
5864 if (type->data.klass->enumtype) {
5865 t = mono_class_enum_basetype (type->data.klass)->type;
5868 if (type->data.klass == mono_defaults.handleref_class){
5869 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5870 return MONO_NATIVE_INT;
5872 return MONO_NATIVE_STRUCT;
5873 case MONO_TYPE_SZARRAY:
5874 case MONO_TYPE_ARRAY:
5876 switch (mspec->native) {
5877 case MONO_NATIVE_BYVALARRAY:
5878 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5879 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5881 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5882 return MONO_NATIVE_BYVALARRAY;
5883 case MONO_NATIVE_SAFEARRAY:
5884 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5885 return MONO_NATIVE_SAFEARRAY;
5886 case MONO_NATIVE_LPARRAY:
5887 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5888 return MONO_NATIVE_LPARRAY;
5890 g_error ("cant marshal array as native type %02x", mspec->native);
5894 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5895 return MONO_NATIVE_LPARRAY;
5896 case MONO_TYPE_I: return MONO_NATIVE_INT;
5897 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5898 case MONO_TYPE_CLASS:
5899 case MONO_TYPE_OBJECT: {
5900 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5902 switch (mspec->native) {
5903 case MONO_NATIVE_STRUCT:
5904 return MONO_NATIVE_STRUCT;
5905 case MONO_NATIVE_CUSTOM:
5906 return MONO_NATIVE_CUSTOM;
5907 case MONO_NATIVE_INTERFACE:
5908 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5909 return MONO_NATIVE_INTERFACE;
5910 case MONO_NATIVE_IDISPATCH:
5911 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5912 return MONO_NATIVE_IDISPATCH;
5913 case MONO_NATIVE_IUNKNOWN:
5914 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5915 return MONO_NATIVE_IUNKNOWN;
5916 case MONO_NATIVE_FUNC:
5917 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5918 type->data.klass == mono_defaults.delegate_class ||
5919 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5920 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5921 return MONO_NATIVE_FUNC;
5925 g_error ("cant marshal object as native type %02x", mspec->native);
5928 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5929 type->data.klass == mono_defaults.delegate_class ||
5930 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5931 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5932 return MONO_NATIVE_FUNC;
5934 if (mono_class_try_get_safehandle_class () && type->data.klass == mono_class_try_get_safehandle_class ()){
5935 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5936 return MONO_NATIVE_INT;
5938 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5939 return MONO_NATIVE_STRUCT;
5941 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5942 case MONO_TYPE_GENERICINST:
5943 type = &type->data.generic_class->container_class->byval_arg;
5946 case MONO_TYPE_TYPEDBYREF:
5948 g_error ("type 0x%02x not handled in marshal", t);
5950 return MONO_NATIVE_MAX;
5954 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5957 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5963 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5964 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5966 /* FIXME: Index translation */
5968 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5971 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5975 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
5977 MonoMethod *result = NULL;
5978 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5980 mono_error_init (error);
5982 switch (tok & MONO_METHODDEFORREF_MASK) {
5983 case MONO_METHODDEFORREF_METHODDEF:
5984 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
5986 case MONO_METHODDEFORREF_METHODREF:
5987 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
5990 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
5997 * mono_class_get_overrides_full:
5999 * Return the method overrides belonging to class @type_token in @overrides, and
6000 * the number of overrides in @num_overrides.
6002 * Returns: TRUE on success, FALSE on failure.
6005 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
6006 MonoGenericContext *generic_context)
6010 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
6013 guint32 cols [MONO_METHODIMPL_SIZE];
6014 MonoMethod **result;
6025 loc.col_idx = MONO_METHODIMPL_CLASS;
6026 loc.idx = mono_metadata_token_index (type_token);
6028 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6034 * We may end up in the middle of the rows...
6037 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
6042 while (end < tdef->rows) {
6043 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
6049 result = g_new (MonoMethod*, num * 2);
6050 for (i = 0; i < num; ++i) {
6053 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
6054 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6059 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
6060 method = method_from_method_def_or_ref (
6061 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
6062 if (method == NULL) {
6063 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6066 result [i * 2] = method;
6067 method = method_from_method_def_or_ref (
6068 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
6069 if (method == NULL) {
6070 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6073 result [i * 2 + 1] = method;
6076 *overrides = result;
6078 *num_overrides = num;
6083 * mono_guid_to_string:
6085 * Converts a 16 byte Microsoft GUID to the standard string representation.
6088 mono_guid_to_string (const guint8 *guid)
6090 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
6091 guid[3], guid[2], guid[1], guid[0],
6095 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6099 * mono_guid_to_string_minimal:
6101 * Converts a 16 byte Microsoft GUID to lower case no '-' representation..
6104 mono_guid_to_string_minimal (const guint8 *guid)
6106 return g_strdup_printf ("%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
6107 guid[3], guid[2], guid[1], guid[0],
6111 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6114 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
6116 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
6117 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
6118 guint32 i, token, found;
6119 MonoClass *klass, **res;
6120 GSList *cons = NULL, *tmp;
6121 MonoGenericContext *context = &container->context;
6123 mono_error_init (error);
6125 *constraints = NULL;
6127 for (i = 0; i < tdef->rows; ++i) {
6128 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
6129 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
6130 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
6131 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
6133 g_slist_free (cons);
6136 cons = g_slist_append (cons, klass);
6139 /* contiguous list finished */
6146 res = (MonoClass **)mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
6147 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
6148 res [i] = (MonoClass *)tmp->data;
6150 g_slist_free (cons);
6156 * mono_metadata_get_generic_param_row:
6159 * @token: TypeOrMethodDef token, owner for GenericParam
6160 * @owner: coded token, set on return
6162 * Returns: 1-based row-id in the GenericParam table whose
6163 * owner is @token. 0 if not found.
6166 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
6168 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6175 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
6176 *owner = MONO_TYPEORMETHOD_TYPE;
6177 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6178 *owner = MONO_TYPEORMETHOD_METHOD;
6180 g_error ("wrong token %x to get_generic_param_row", token);
6183 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
6186 loc.col_idx = MONO_GENERICPARAM_OWNER;
6189 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6192 /* Find the first entry by searching backwards */
6193 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
6196 return loc.result + 1;
6200 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
6203 return mono_metadata_get_generic_param_row (image, token, &owner);
6207 * Memory is allocated from IMAGE's mempool.
6210 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
6211 MonoGenericContainer *container, MonoError *error)
6214 guint32 start_row, i, owner;
6215 mono_error_init (error);
6217 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6219 for (i = 0; i < container->type_argc; i++) {
6220 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6228 * mono_metadata_load_generic_params:
6230 * Load the type parameters from the type or method definition @token.
6232 * Use this method after parsing a type or method definition to figure out whether it's a generic
6233 * type / method. When parsing a method definition, @parent_container points to the generic container
6234 * of the current class, if any.
6236 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6237 * creating the type.
6239 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6241 * LOCKING: Acquires the loader lock
6244 MonoGenericContainer *
6245 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6247 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6248 guint32 cols [MONO_GENERICPARAM_SIZE];
6249 guint32 i, owner = 0, n;
6250 MonoGenericContainer *container;
6251 MonoGenericParamFull *params;
6252 MonoGenericContext *context;
6254 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6256 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6259 container = (MonoGenericContainer *)mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6260 container->owner.image = image; // Temporarily mark as anonymous, but this will be overriden by caller
6261 container->is_anonymous = TRUE;
6264 params = (MonoGenericParamFull *)g_realloc (params, sizeof (MonoGenericParamFull) * n);
6265 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6266 params [n - 1].param.owner = container;
6267 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6268 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6269 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6270 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6271 if (params [n - 1].param.num != n - 1)
6272 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6273 if (++i > tdef->rows)
6275 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6276 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6278 container->type_argc = n;
6279 container->type_params = (MonoGenericParamFull *)mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6280 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6282 container->parent = parent_container;
6284 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6285 container->is_method = 1;
6287 g_assert (container->parent == NULL || container->is_method);
6289 context = &container->context;
6290 if (container->is_method) {
6291 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6292 context->method_inst = mono_get_shared_generic_inst (container);
6294 context->class_inst = mono_get_shared_generic_inst (container);
6301 mono_get_shared_generic_inst (MonoGenericContainer *container)
6303 MonoType **type_argv;
6305 MonoGenericInst *nginst;
6308 type_argv = g_new0 (MonoType *, container->type_argc);
6309 helper = g_new0 (MonoType, container->type_argc);
6311 for (i = 0; i < container->type_argc; i++) {
6312 MonoType *t = &helper [i];
6314 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6315 t->data.generic_param = mono_generic_container_get_param (container, i);
6320 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6329 * mono_type_is_byref:
6330 * @type: the MonoType operated on
6332 * Returns: #TRUE if @type represents a type passed by reference,
6336 mono_type_is_byref (MonoType *type)
6342 * mono_type_get_type:
6343 * @type: the MonoType operated on
6345 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
6346 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
6349 mono_type_get_type (MonoType *type)
6355 * mono_type_get_signature:
6356 * @type: the MonoType operated on
6358 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
6360 * Returns: the MonoMethodSignature pointer that describes the signature
6361 * of the function pointer @type represents.
6363 MonoMethodSignature*
6364 mono_type_get_signature (MonoType *type)
6366 g_assert (type->type == MONO_TYPE_FNPTR);
6367 return type->data.method;
6371 * mono_type_get_class:
6372 * @type: the MonoType operated on
6374 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
6375 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
6378 * Returns: the MonoClass pointer that describes the class that @type represents.
6381 mono_type_get_class (MonoType *type)
6383 /* FIXME: review the runtime users before adding the assert here */
6384 return type->data.klass;
6388 * mono_type_get_array_type:
6389 * @type: the MonoType operated on
6391 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6393 * Returns: a MonoArrayType struct describing the array type that @type
6394 * represents. The info includes details such as rank, array element type
6395 * and the sizes and bounds of multidimensional arrays.
6398 mono_type_get_array_type (MonoType *type)
6400 return type->data.array;
6404 * mono_type_get_ptr_type:
6405 * @type: the MonoType operated on
6407 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6410 * Returns: the MonoType pointer that describes the type that @type
6411 * represents a pointer to.
6414 mono_type_get_ptr_type (MonoType *type)
6416 g_assert (type->type == MONO_TYPE_PTR);
6417 return type->data.type;
6421 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6423 /* FIXME: implement */
6428 * mono_type_is_struct:
6429 * @type: the MonoType operated on
6431 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6432 * or a basic type like System.Int32. #FALSE otherwise.
6435 mono_type_is_struct (MonoType *type)
6437 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6438 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6439 ((type->type == MONO_TYPE_GENERICINST) &&
6440 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6441 !type->data.generic_class->container_class->enumtype)));
6445 * mono_type_is_void:
6446 * @type: the MonoType operated on
6448 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6451 mono_type_is_void (MonoType *type)
6453 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6457 * mono_type_is_pointer:
6458 * @type: the MonoType operated on
6460 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6463 mono_type_is_pointer (MonoType *type)
6465 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6466 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6467 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6468 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6469 (type->type == MONO_TYPE_FNPTR)));
6473 * mono_type_is_reference:
6474 * @type: the MonoType operated on
6476 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6479 mono_type_is_reference (MonoType *type)
6481 return (type && (((type->type == MONO_TYPE_STRING) ||
6482 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6483 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6484 ((type->type == MONO_TYPE_GENERICINST) &&
6485 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6489 mono_type_is_generic_parameter (MonoType *type)
6491 return !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR);
6495 * mono_signature_get_return_type:
6496 * @sig: the method signature inspected
6498 * Returns: the return type of the method signature @sig
6501 mono_signature_get_return_type (MonoMethodSignature *sig)
6507 * mono_signature_get_params:
6508 * @sig: the method signature inspected
6509 * #iter: pointer to an iterator
6511 * Iterates over the parameters for the method signature @sig.
6512 * A void* pointer must be initualized to #NULL to start the iteration
6513 * and it's address is passed to this function repeteadly until it returns
6516 * Returns: the next parameter type of the method signature @sig,
6517 * #NULL when finished.
6520 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6526 /* start from the first */
6527 if (sig->param_count) {
6528 *iter = &sig->params [0];
6529 return sig->params [0];
6535 type = (MonoType **)*iter;
6537 if (type < &sig->params [sig->param_count]) {
6545 * mono_signature_get_param_count:
6546 * @sig: the method signature inspected
6548 * Returns: the number of parameters in the method signature @sig.
6551 mono_signature_get_param_count (MonoMethodSignature *sig)
6553 return sig->param_count;
6557 * mono_signature_get_call_conv:
6558 * @sig: the method signature inspected
6560 * Returns: the call convention of the method signature @sig.
6563 mono_signature_get_call_conv (MonoMethodSignature *sig)
6565 return sig->call_convention;
6569 * mono_signature_vararg_start:
6570 * @sig: the method signature inspected
6572 * Returns: the number of the first vararg parameter in the
6573 * method signature @sig. -1 if this is not a vararg signature.
6576 mono_signature_vararg_start (MonoMethodSignature *sig)
6578 return sig->sentinelpos;
6582 * mono_signature_is_instance:
6583 * @sig: the method signature inspected
6585 * Returns: #TRUE if this the method signature @sig has an implicit
6586 * first instance argument. #FALSE otherwise.
6589 mono_signature_is_instance (MonoMethodSignature *sig)
6591 return sig->hasthis;
6595 * mono_signature_param_is_out
6596 * @sig: the method signature inspected
6597 * @param_num: the 0-based index of the inspected parameter
6599 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6603 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6605 g_assert (param_num >= 0 && param_num < sig->param_count);
6606 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6610 * mono_signature_explicit_this:
6611 * @sig: the method signature inspected
6613 * Returns: #TRUE if this the method signature @sig has an explicit
6614 * instance argument. #FALSE otherwise.
6617 mono_signature_explicit_this (MonoMethodSignature *sig)
6619 return sig->explicit_this;
6622 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6624 mono_aligned_addr_hash (gconstpointer ptr)
6626 return GPOINTER_TO_UINT (ptr) >> 3;
6630 * If @field belongs to an inflated generic class, return the corresponding field of the
6631 * generic type definition class.
6634 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6639 if (!mono_class_is_ginst (field->parent))
6642 gtd = mono_class_get_generic_class (field->parent)->container_class;
6643 offset = field - field->parent->fields;
6644 return gtd->fields + offset;
6648 * If @event belongs to an inflated generic class, return the corresponding event of the
6649 * generic type definition class.
6652 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6657 if (!mono_class_is_ginst (event->parent))
6660 gtd = mono_class_get_generic_class (event->parent)->container_class;
6661 offset = event - mono_class_get_event_info (event->parent)->events;
6662 return mono_class_get_event_info (gtd)->events + offset;
6666 * If @property belongs to an inflated generic class, return the corresponding property of the
6667 * generic type definition class.
6670 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6672 MonoClassPropertyInfo *info;
6676 if (!mono_class_is_ginst (property->parent))
6679 info = mono_class_get_property_info (property->parent);
6680 gtd = mono_class_get_generic_class (property->parent)->container_class;
6681 offset = property - info->properties;
6682 return mono_class_get_property_info (gtd)->properties + offset;
6686 mono_method_get_wrapper_cache (MonoMethod *method)
6688 if (method->is_inflated) {
6689 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
6690 return &imethod->owner->wrapper_caches;
6692 return &method->klass->image->wrapper_caches;
6696 // This is support for the mempool reference tracking feature in checked-build, but lives in metadata.c due to use of static variables of this file.
6699 * mono_find_image_set_owner:
6701 * Find the imageset, if any, which a given pointer is located in the memory of.
6704 mono_find_image_set_owner (void *ptr)
6706 MonoImageSet *owner = NULL;
6713 for (i = 0; !owner && i < image_sets->len; ++i) {
6714 MonoImageSet *set = (MonoImageSet *)g_ptr_array_index (image_sets, i);
6715 if (mono_mempool_contains_addr (set->mempool, ptr))
6720 image_sets_unlock ();