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 */
114 /* CustomDebugInformation parent encoded index */
115 MONO_MT_HASCUSTDEBUG_IDX
118 const static unsigned char TableSchemas [] = {
119 #define ASSEMBLY_SCHEMA_OFFSET 0
120 MONO_MT_UINT32, /* "HashId" }, */
121 MONO_MT_UINT16, /* "Major" }, */
122 MONO_MT_UINT16, /* "Minor" }, */
123 MONO_MT_UINT16, /* "BuildNumber" }, */
124 MONO_MT_UINT16, /* "RevisionNumber" }, */
125 MONO_MT_UINT32, /* "Flags" }, */
126 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
127 MONO_MT_STRING_IDX, /* "Name" }, */
128 MONO_MT_STRING_IDX, /* "Culture" }, */
131 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
132 MONO_MT_UINT32, /* "OSPlatformID" }, */
133 MONO_MT_UINT32, /* "OSMajor" }, */
134 MONO_MT_UINT32, /* "OSMinor" }, */
137 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
138 MONO_MT_UINT32, /* "Processor" }, */
141 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
142 MONO_MT_UINT16, /* "Major" }, */
143 MONO_MT_UINT16, /* "Minor" }, */
144 MONO_MT_UINT16, /* "Build" }, */
145 MONO_MT_UINT16, /* "Revision" }, */
146 MONO_MT_UINT32, /* "Flags" }, */
147 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
148 MONO_MT_STRING_IDX, /* "Name" }, */
149 MONO_MT_STRING_IDX, /* "Culture" }, */
150 MONO_MT_BLOB_IDX, /* "HashValue" }, */
153 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
154 MONO_MT_UINT32, /* "OSPlatformID" }, */
155 MONO_MT_UINT32, /* "OSMajorVersion" }, */
156 MONO_MT_UINT32, /* "OSMinorVersion" }, */
157 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
160 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
161 MONO_MT_UINT32, /* "Processor" }, */
162 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
165 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
166 MONO_MT_UINT16, /* "PackingSize" }, */
167 MONO_MT_UINT32, /* "ClassSize" }, */
168 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
171 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
172 MONO_MT_UINT8, /* "Type" }, */
173 MONO_MT_UINT8, /* "PaddingZero" }, */
174 MONO_MT_CONST_IDX, /* "Parent" }, */
175 MONO_MT_BLOB_IDX, /* "Value" }, */
178 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
179 MONO_MT_HASCAT_IDX, /* "Parent" }, */
180 MONO_MT_CAT_IDX, /* "Type" }, */
181 MONO_MT_BLOB_IDX, /* "Value" }, */
184 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
185 MONO_MT_UINT16, /* "Action" }, */
186 MONO_MT_HASDEC_IDX, /* "Parent" }, */
187 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
190 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
191 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
192 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
195 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
196 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
197 MONO_MT_STRING_IDX, /* "Name" }, */
198 MONO_MT_TDOR_IDX, /* "EventType" }, TypeDef or TypeRef or TypeSpec */
201 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
202 MONO_MT_TABLE_IDX, /* "Event" }, */
205 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
206 MONO_MT_UINT32, /* "Flags" }, */
207 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
208 MONO_MT_STRING_IDX, /* "TypeName" }, */
209 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
210 MONO_MT_IMPL_IDX, /* "Implementation" }, */
213 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
214 MONO_MT_UINT16, /* "Flags" }, */
215 MONO_MT_STRING_IDX, /* "Name" }, */
216 MONO_MT_BLOB_IDX, /* "Signature" }, */
219 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
220 MONO_MT_UINT32, /* "Offset" }, */
221 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
224 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
225 MONO_MT_HFM_IDX, /* "Parent" }, */
226 MONO_MT_BLOB_IDX, /* "NativeType" }, */
229 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
230 MONO_MT_UINT32, /* "RVA" }, */
231 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
234 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
235 MONO_MT_TABLE_IDX, /* "Field" }, */
238 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
239 MONO_MT_UINT32, /* "Flags" }, */
240 MONO_MT_STRING_IDX, /* "Name" }, */
241 MONO_MT_BLOB_IDX, /* "Value" }, */
244 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
245 MONO_MT_UINT16, /* "MappingFlag" }, */
246 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
247 MONO_MT_STRING_IDX, /* "ImportName" }, */
248 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
251 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
252 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
253 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
256 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
257 MONO_MT_UINT32, /* "Offset" }, */
258 MONO_MT_UINT32, /* "Flags" }, */
259 MONO_MT_STRING_IDX, /* "Name" }, */
260 MONO_MT_IMPL_IDX, /* "Implementation" }, */
263 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
264 MONO_MT_MRP_IDX, /* "Class" }, */
265 MONO_MT_STRING_IDX, /* "Name" }, */
266 MONO_MT_BLOB_IDX, /* "Signature" }, */
269 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
270 MONO_MT_UINT32, /* "RVA" }, */
271 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
272 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
273 MONO_MT_STRING_IDX, /* "Name" }, */
274 MONO_MT_BLOB_IDX, /* "Signature" }, */
275 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
278 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
279 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
280 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
281 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
284 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
285 MONO_MT_UINT16, /* "MethodSemantic" }, */
286 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
287 MONO_MT_HS_IDX, /* "Association" }, */
290 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
291 MONO_MT_TABLE_IDX, /* "Method" }, */
294 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
295 MONO_MT_UINT16, /* "Generation" }, */
296 MONO_MT_STRING_IDX, /* "Name" }, */
297 MONO_MT_GUID_IDX, /* "MVID" }, */
298 MONO_MT_GUID_IDX, /* "EncID" }, */
299 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
302 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
303 MONO_MT_STRING_IDX, /* "Name" }, */
306 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
307 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
308 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
311 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
312 MONO_MT_UINT16, /* "Flags" }, */
313 MONO_MT_UINT16, /* "Sequence" }, */
314 MONO_MT_STRING_IDX, /* "Name" }, */
317 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
318 MONO_MT_TABLE_IDX, /* "Param" }, */
321 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
322 MONO_MT_UINT16, /* "Flags" }, */
323 MONO_MT_STRING_IDX, /* "Name" }, */
324 MONO_MT_BLOB_IDX, /* "Type" }, */
327 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
328 MONO_MT_TABLE_IDX, /* "Property" }, */
331 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
332 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
333 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
336 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
337 MONO_MT_BLOB_IDX, /* "Signature" }, */
340 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
341 MONO_MT_UINT32, /* "Flags" }, */
342 MONO_MT_STRING_IDX, /* "Name" }, */
343 MONO_MT_STRING_IDX, /* "Namespace" }, */
344 MONO_MT_TDOR_IDX, /* "Extends" }, */
345 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
346 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
349 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
350 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
351 MONO_MT_STRING_IDX, /* "Name" }, */
352 MONO_MT_STRING_IDX, /* "Namespace" }, */
355 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
356 MONO_MT_BLOB_IDX, /* "Signature" }, */
359 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
360 MONO_MT_UINT16, /* "Number" }, */
361 MONO_MT_UINT16, /* "Flags" }, */
362 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
363 MONO_MT_STRING_IDX, /* "Name" }, */
366 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
367 MONO_MT_MDOR_IDX, /* "Method" }, */
368 MONO_MT_BLOB_IDX, /* "Signature" }, */
371 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
372 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
373 MONO_MT_TDOR_IDX, /* "Constraint" }, */
376 #define DOCUMENT_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
377 MONO_MT_BLOB_IDX, /* Name */
378 MONO_MT_GUID_IDX, /* HashAlgorithm */
379 MONO_MT_BLOB_IDX, /* Hash */
380 MONO_MT_GUID_IDX, /* Language */
383 #define METHODBODY_SCHEMA_OFFSET DOCUMENT_SCHEMA_OFFSET + 5
384 MONO_MT_TABLE_IDX, /* Document */
385 MONO_MT_BLOB_IDX, /* SequencePoints */
388 #define LOCALSCOPE_SCHEMA_OFFSET METHODBODY_SCHEMA_OFFSET + 3
389 MONO_MT_TABLE_IDX, /* Method */
390 MONO_MT_TABLE_IDX, /* ImportScope */
391 MONO_MT_TABLE_IDX, /* VariableList */
392 MONO_MT_TABLE_IDX, /* ConstantList */
393 MONO_MT_UINT32, /* StartOffset */
394 MONO_MT_UINT32, /* Length */
397 #define LOCALVARIABLE_SCHEMA_OFFSET LOCALSCOPE_SCHEMA_OFFSET + 7
398 MONO_MT_UINT16, /* Attributes */
399 MONO_MT_UINT16, /* Index */
400 MONO_MT_STRING_IDX, /* Name */
403 #define LOCALCONSTANT_SCHEMA_OFFSET LOCALVARIABLE_SCHEMA_OFFSET + 4
404 MONO_MT_STRING_IDX, /* Name (String heap index) */
405 MONO_MT_BLOB_IDX, /* Signature (Blob heap index, LocalConstantSig blob) */
408 #define IMPORTSCOPE_SCHEMA_OFFSET LOCALCONSTANT_SCHEMA_OFFSET + 3
409 MONO_MT_TABLE_IDX, /* Parent (ImportScope row id or nil) */
410 MONO_MT_BLOB_IDX, /* Imports (Blob index, encoding: Imports blob) */
413 #define ASYNCMETHOD_SCHEMA_OFFSET IMPORTSCOPE_SCHEMA_OFFSET + 3
414 MONO_MT_TABLE_IDX, /* MoveNextMethod (MethodDef row id) */
415 MONO_MT_TABLE_IDX, /* KickoffMethod (MethodDef row id) */
418 #define CUSTOMDEBUGINFORMATION_SCHEMA_OFFSET ASYNCMETHOD_SCHEMA_OFFSET + 3
419 MONO_MT_HASCUSTDEBUG_IDX, /* Parent (HasCustomDebugInformation coded index) */
420 MONO_MT_GUID_IDX, /* Kind (Guid heap index) */
421 MONO_MT_BLOB_IDX, /* Value (Blob heap index) */
424 #define NULL_SCHEMA_OFFSET CUSTOMDEBUGINFORMATION_SCHEMA_OFFSET + 4
428 /* Must be the same order as MONO_TABLE_* */
429 const static unsigned char
430 table_description [] = {
431 MODULE_SCHEMA_OFFSET,
432 TYPEREF_SCHEMA_OFFSET,
433 TYPEDEF_SCHEMA_OFFSET,
434 FIELD_POINTER_SCHEMA_OFFSET,
436 METHOD_POINTER_SCHEMA_OFFSET,
437 METHOD_SCHEMA_OFFSET,
438 PARAM_POINTER_SCHEMA_OFFSET,
440 IFACEMAP_SCHEMA_OFFSET,
441 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
442 CONSTANT_SCHEMA_OFFSET,
443 CUSTOM_ATTR_SCHEMA_OFFSET,
444 FIELD_MARSHAL_SCHEMA_OFFSET,
445 DECL_SEC_SCHEMA_OFFSET,
446 CLASS_LAYOUT_SCHEMA_OFFSET,
447 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
448 STDALON_SIG_SCHEMA_OFFSET,
449 EVENTMAP_SCHEMA_OFFSET,
450 EVENT_POINTER_SCHEMA_OFFSET,
452 PROPERTY_MAP_SCHEMA_OFFSET,
453 PROPERTY_POINTER_SCHEMA_OFFSET,
454 PROPERTY_SCHEMA_OFFSET,
455 METHOD_SEMA_SCHEMA_OFFSET,
456 METHOD_IMPL_SCHEMA_OFFSET,
457 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
458 TYPESPEC_SCHEMA_OFFSET,
459 IMPLMAP_SCHEMA_OFFSET,
460 FIELD_RVA_SCHEMA_OFFSET,
463 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
464 ASSEMBLYPROC_SCHEMA_OFFSET,
465 ASSEMBLYOS_SCHEMA_OFFSET,
466 ASSEMBLYREF_SCHEMA_OFFSET,
467 ASSEMBLYREFPROC_SCHEMA_OFFSET,
468 ASSEMBLYREFOS_SCHEMA_OFFSET,
470 EXPORTED_TYPE_SCHEMA_OFFSET,
471 MANIFEST_SCHEMA_OFFSET,
472 NESTED_CLASS_SCHEMA_OFFSET,
473 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
474 METHOD_SPEC_SCHEMA_OFFSET,
475 GEN_CONSTRAINT_SCHEMA_OFFSET,
479 DOCUMENT_SCHEMA_OFFSET, /* 0x30 */
480 METHODBODY_SCHEMA_OFFSET,
481 LOCALSCOPE_SCHEMA_OFFSET,
482 LOCALVARIABLE_SCHEMA_OFFSET,
483 LOCALCONSTANT_SCHEMA_OFFSET,
484 IMPORTSCOPE_SCHEMA_OFFSET,
485 ASYNCMETHOD_SCHEMA_OFFSET,
486 CUSTOMDEBUGINFORMATION_SCHEMA_OFFSET
489 #ifdef HAVE_ARRAY_ELEM_INIT
490 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
491 #define MSGSTRFIELD1(line) str##line
492 static const struct msgstr_t {
493 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
494 #include "mono/cil/tables.def"
497 #define TABLEDEF(a,b) b,
498 #include "mono/cil/tables.def"
501 static const gint16 tableidx [] = {
502 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
503 #include "mono/cil/tables.def"
508 #define TABLEDEF(a,b) b,
509 static const char* const
510 mono_tables_names [] = {
511 #include "mono/cil/tables.def"
517 // Amount initially reserved in each imageset's mempool.
518 // FIXME: This number is arbitrary, a more practical number should be found
519 #define INITIAL_IMAGE_SET_SIZE 1024
522 * mono_meta_table_name:
523 * @table: table index
525 * Returns the name of the given ECMA metadata logical format table
526 * as described in ECMA 335, Partition II, Section 22.
528 * Returns: the name for the @table index
531 mono_meta_table_name (int table)
533 if ((table < 0) || (table > MONO_TABLE_LAST))
536 #ifdef HAVE_ARRAY_ELEM_INIT
537 return (const char*)&tablestr + tableidx [table];
539 return mono_tables_names [table];
543 /* The guy who wrote the spec for this should not be allowed near a
546 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
547 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
548 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
549 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
550 inverse of this mapping.
553 #define rtsize(meta,s,b) (((s) < (1 << (b)) ? 2 : 4))
554 #define idx_size(meta,tableidx) ((meta)->tables [(tableidx)].rows < 65536 ? 2 : 4)
556 /* Reference: Partition II - 23.2.6 */
558 * mono_metadata_compute_size:
559 * @meta: metadata context
560 * @tableindex: metadata table number
561 * @result_bitfield: pointer to guint32 where to store additional info
563 * mono_metadata_compute_size() computes the lenght in bytes of a single
564 * row in a metadata table. The size of each column is encoded in the
565 * @result_bitfield return value along with the number of columns in the table.
566 * the resulting bitfield should be handed to the mono_metadata_table_size()
567 * and mono_metadata_table_count() macros.
568 * This is a Mono runtime internal only function.
571 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
573 guint32 bitfield = 0;
574 int size = 0, field_size = 0;
577 const unsigned char *description = TableSchemas + table_description [tableindex];
579 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
582 field_size = 4; break;
585 field_size = 2; break;
588 field_size = 1; break;
590 case MONO_MT_BLOB_IDX:
591 field_size = meta->idx_blob_wide ? 4 : 2; break;
593 case MONO_MT_STRING_IDX:
594 field_size = meta->idx_string_wide ? 4 : 2; break;
596 case MONO_MT_GUID_IDX:
597 field_size = meta->idx_guid_wide ? 4 : 2; break;
599 case MONO_MT_TABLE_IDX:
600 /* Uhm, a table index can point to other tables besides the current one
601 * so, it's not correct to use the rowcount of the current table to
602 * get the size for this column - lupus
604 switch (tableindex) {
605 case MONO_TABLE_ASSEMBLYREFOS:
607 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
608 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
610 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
611 case MONO_TABLE_CLASSLAYOUT:
613 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
614 case MONO_TABLE_EVENTMAP:
615 g_assert (i == 0 || i == 1);
616 field_size = i ? idx_size (meta, MONO_TABLE_EVENT):
617 idx_size (meta, MONO_TABLE_TYPEDEF);
619 case MONO_TABLE_EVENT_POINTER:
621 field_size = idx_size (meta, MONO_TABLE_EVENT); break;
622 case MONO_TABLE_EXPORTEDTYPE:
624 /* the index is in another metadata file, so it must be 4 */
625 field_size = 4; break;
626 case MONO_TABLE_FIELDLAYOUT:
628 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
629 case MONO_TABLE_FIELDRVA:
631 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
632 case MONO_TABLE_FIELD_POINTER:
634 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
635 case MONO_TABLE_IMPLMAP:
637 field_size = idx_size (meta, MONO_TABLE_MODULEREF); break;
638 case MONO_TABLE_INTERFACEIMPL:
640 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
641 case MONO_TABLE_METHOD:
643 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
644 case MONO_TABLE_METHODIMPL:
646 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
647 case MONO_TABLE_METHODSEMANTICS:
649 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
650 case MONO_TABLE_METHOD_POINTER:
652 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
653 case MONO_TABLE_NESTEDCLASS:
654 g_assert (i == 0 || i == 1);
655 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
656 case MONO_TABLE_PARAM_POINTER:
658 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
659 case MONO_TABLE_PROPERTYMAP:
660 g_assert (i == 0 || i == 1);
661 field_size = i ? idx_size (meta, MONO_TABLE_PROPERTY):
662 idx_size (meta, MONO_TABLE_TYPEDEF);
664 case MONO_TABLE_PROPERTY_POINTER:
666 field_size = idx_size (meta, MONO_TABLE_PROPERTY); break;
667 case MONO_TABLE_TYPEDEF:
668 g_assert (i == 4 || i == 5);
669 field_size = i == 4 ? idx_size (meta, MONO_TABLE_FIELD):
670 idx_size (meta, MONO_TABLE_METHOD);
672 case MONO_TABLE_GENERICPARAM:
674 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
675 /*This is a coded token for 2 tables, so takes 1 bit */
676 field_size = rtsize (meta, n, 16 - MONO_TYPEORMETHOD_BITS);
678 case MONO_TABLE_GENERICPARAMCONSTRAINT:
680 field_size = idx_size (meta, MONO_TABLE_GENERICPARAM);
682 case MONO_TABLE_LOCALSCOPE:
685 // FIXME: This table is in another file
686 field_size = idx_size (meta, MONO_TABLE_METHOD);
689 field_size = idx_size (meta, MONO_TABLE_IMPORTSCOPE);
692 field_size = idx_size (meta, MONO_TABLE_LOCALVARIABLE);
695 field_size = idx_size (meta, MONO_TABLE_LOCALCONSTANT);
698 g_assert_not_reached ();
702 case MONO_TABLE_METHODBODY:
704 field_size = idx_size (meta, MONO_TABLE_DOCUMENT); break;
705 case MONO_TABLE_IMPORTSCOPE:
707 field_size = idx_size (meta, MONO_TABLE_IMPORTSCOPE); break;
708 case MONO_TABLE_STATEMACHINEMETHOD:
709 g_assert(i == 0 || i == 1);
710 field_size = idx_size(meta, MONO_TABLE_METHOD); break;
712 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
717 * HasConstant: ParamDef, FieldDef, Property
719 case MONO_MT_CONST_IDX:
720 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
721 meta->tables [MONO_TABLE_FIELD].rows);
722 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
724 /* 2 bits to encode tag */
725 field_size = rtsize (meta, n, 16-2);
729 * HasCustomAttribute: points to any table but
732 case MONO_MT_HASCAT_IDX:
734 * We believe that since the signature and
735 * permission are indexing the Blob heap,
736 * we should consider the blob size first
738 /* I'm not a believer - lupus
739 if (meta->idx_blob_wide){
744 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
745 meta->tables [MONO_TABLE_FIELD].rows);
746 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
747 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
748 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
749 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
750 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
751 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
752 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
753 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
754 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
755 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
756 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
757 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
758 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
759 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
760 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
761 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
762 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
763 n = MAX (n, meta->tables [MONO_TABLE_GENERICPARAM].rows);
764 n = MAX (n, meta->tables [MONO_TABLE_GENERICPARAMCONSTRAINT].rows);
765 n = MAX (n, meta->tables [MONO_TABLE_METHODSPEC].rows);
767 /* 5 bits to encode */
768 field_size = rtsize (meta, n, 16-5);
772 * HasCustomAttribute: points to any table but
776 case MONO_MT_HASCUSTDEBUG_IDX:
777 n = MAX(meta->tables[MONO_TABLE_METHOD].rows,
778 meta->tables[MONO_TABLE_FIELD].rows);
779 n = MAX(n, meta->tables[MONO_TABLE_TYPEREF].rows);
780 n = MAX(n, meta->tables[MONO_TABLE_TYPEDEF].rows);
781 n = MAX(n, meta->tables[MONO_TABLE_PARAM].rows);
782 n = MAX(n, meta->tables[MONO_TABLE_INTERFACEIMPL].rows);
783 n = MAX(n, meta->tables[MONO_TABLE_MEMBERREF].rows);
784 n = MAX(n, meta->tables[MONO_TABLE_MODULE].rows);
785 n = MAX(n, meta->tables[MONO_TABLE_DECLSECURITY].rows);
786 n = MAX(n, meta->tables[MONO_TABLE_PROPERTY].rows);
787 n = MAX(n, meta->tables[MONO_TABLE_EVENT].rows);
788 n = MAX(n, meta->tables[MONO_TABLE_STANDALONESIG].rows);
789 n = MAX(n, meta->tables[MONO_TABLE_MODULEREF].rows);
790 n = MAX(n, meta->tables[MONO_TABLE_TYPESPEC].rows);
791 n = MAX(n, meta->tables[MONO_TABLE_ASSEMBLY].rows);
792 n = MAX(n, meta->tables[MONO_TABLE_ASSEMBLYREF].rows);
793 n = MAX(n, meta->tables[MONO_TABLE_FILE].rows);
794 n = MAX(n, meta->tables[MONO_TABLE_EXPORTEDTYPE].rows);
795 n = MAX(n, meta->tables[MONO_TABLE_MANIFESTRESOURCE].rows);
796 n = MAX(n, meta->tables[MONO_TABLE_GENERICPARAM].rows);
797 n = MAX(n, meta->tables[MONO_TABLE_GENERICPARAMCONSTRAINT].rows);
798 n = MAX(n, meta->tables[MONO_TABLE_METHODSPEC].rows);
799 n = MAX(n, meta->tables[MONO_TABLE_DOCUMENT].rows);
800 n = MAX(n, meta->tables[MONO_TABLE_LOCALSCOPE].rows);
801 n = MAX(n, meta->tables[MONO_TABLE_LOCALVARIABLE].rows);
802 n = MAX(n, meta->tables[MONO_TABLE_LOCALCONSTANT].rows);
803 n = MAX(n, meta->tables[MONO_TABLE_IMPORTSCOPE].rows);
805 /* 5 bits to encode */
806 field_size = rtsize(meta, n, 16 - 5);
810 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
811 * MemberRef and String.
813 case MONO_MT_CAT_IDX:
814 /* String is a heap, if it is wide, we know the size */
816 if (meta->idx_string_wide){
821 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
822 meta->tables [MONO_TABLE_TYPEDEF].rows);
823 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
824 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
826 /* 3 bits to encode */
827 field_size = rtsize (meta, n, 16-3);
831 * HasDeclSecurity: Typedef, MethodDef, Assembly
833 case MONO_MT_HASDEC_IDX:
834 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
835 meta->tables [MONO_TABLE_METHOD].rows);
836 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
838 /* 2 bits to encode */
839 field_size = rtsize (meta, n, 16-2);
843 * Implementation: File, AssemblyRef, ExportedType
845 case MONO_MT_IMPL_IDX:
846 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
847 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
848 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
850 /* 2 bits to encode tag */
851 field_size = rtsize (meta, n, 16-2);
855 * HasFieldMarshall: FieldDef, ParamDef
857 case MONO_MT_HFM_IDX:
858 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
859 meta->tables [MONO_TABLE_PARAM].rows);
861 /* 1 bit used to encode tag */
862 field_size = rtsize (meta, n, 16-1);
866 * MemberForwarded: FieldDef, MethodDef
869 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
870 meta->tables [MONO_TABLE_METHOD].rows);
872 /* 1 bit used to encode tag */
873 field_size = rtsize (meta, n, 16-1);
877 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
879 * It is TypeDef, _TypeRef_, TypeSpec, instead.
881 case MONO_MT_TDOR_IDX:
882 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
883 meta->tables [MONO_TABLE_TYPEREF].rows);
884 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
886 /* 2 bits to encode */
887 field_size = rtsize (meta, n, 16-2);
891 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
893 case MONO_MT_MRP_IDX:
894 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
895 meta->tables [MONO_TABLE_TYPEREF].rows);
896 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
897 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
898 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
900 /* 3 bits to encode */
901 field_size = rtsize (meta, n, 16 - 3);
905 * MethodDefOrRef: MethodDef, MemberRef
907 case MONO_MT_MDOR_IDX:
908 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
909 meta->tables [MONO_TABLE_MEMBERREF].rows);
911 /* 1 bit used to encode tag */
912 field_size = rtsize (meta, n, 16-1);
916 * HasSemantics: Property, Event
919 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
920 meta->tables [MONO_TABLE_EVENT].rows);
922 /* 1 bit used to encode tag */
923 field_size = rtsize (meta, n, 16-1);
927 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
930 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
931 meta->tables [MONO_TABLE_MODULEREF].rows);
932 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
933 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
935 /* 2 bits used to encode tag (ECMA spec claims 3) */
936 field_size = rtsize (meta, n, 16 - 2);
941 * encode field size as follows (we just need to
948 bitfield |= (field_size-1) << shift;
951 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
954 *result_bitfield = (i << 24) | bitfield;
959 * mono_metadata_compute_table_bases:
960 * @meta: metadata context to compute table values
962 * Computes the table bases for the metadata structure.
963 * This is an internal function used by the image loader code.
966 mono_metadata_compute_table_bases (MonoImage *meta)
969 const char *base = meta->tables_base;
971 for (i = 0; i < MONO_TABLE_NUM; i++) {
972 MonoTableInfo *table = &meta->tables [i];
973 if (table->rows == 0)
976 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
978 base += table->rows * table->row_size;
983 * mono_metadata_locate:
984 * @meta: metadata context
985 * @table: table code.
986 * @idx: index of element to retrieve from @table.
988 * Returns: a pointer to the @idx element in the metadata table
989 * whose code is @table.
992 mono_metadata_locate (MonoImage *meta, int table, int idx)
994 /* idx == 0 refers always to NULL */
995 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
997 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
1001 * mono_metadata_locate_token:
1002 * @meta: metadata context
1003 * @token: metadata token
1005 * Returns: a pointer to the data in the metadata represented by the
1009 mono_metadata_locate_token (MonoImage *meta, guint32 token)
1011 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
1015 * mono_metadata_string_heap:
1016 * @meta: metadata context
1017 * @index: index into the string heap.
1019 * Returns: an in-memory pointer to the @index in the string heap.
1022 mono_metadata_string_heap (MonoImage *meta, guint32 index)
1024 g_assert (index < meta->heap_strings.size);
1025 g_return_val_if_fail (index < meta->heap_strings.size, "");
1026 return meta->heap_strings.data + index;
1030 * mono_metadata_user_string:
1031 * @meta: metadata context
1032 * @index: index into the user string heap.
1034 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
1037 mono_metadata_user_string (MonoImage *meta, guint32 index)
1039 g_assert (index < meta->heap_us.size);
1040 g_return_val_if_fail (index < meta->heap_us.size, "");
1041 return meta->heap_us.data + index;
1045 * mono_metadata_blob_heap:
1046 * @meta: metadata context
1047 * @index: index into the blob.
1049 * Returns: an in-memory pointer to the @index in the Blob heap.
1052 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
1054 g_assert (index < meta->heap_blob.size);
1055 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
1056 return meta->heap_blob.data + index;
1060 * mono_metadata_guid_heap:
1061 * @meta: metadata context
1062 * @index: index into the guid heap.
1064 * Returns: an in-memory pointer to the @index in the guid heap.
1067 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
1070 index *= 16; /* adjust for guid size and 1-based index */
1071 g_return_val_if_fail (index < meta->heap_guid.size, "");
1072 return meta->heap_guid.data + index;
1075 static const unsigned char *
1076 dword_align (const unsigned char *ptr)
1078 #if SIZEOF_VOID_P == 8
1079 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
1081 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
1086 * mono_metadata_decode_row:
1087 * @t: table to extract information from.
1088 * @idx: index in table.
1089 * @res: array of @res_size cols to store the results in
1091 * This decompresses the metadata element @idx in table @t
1092 * into the guint32 @res array that has res_size elements
1095 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
1097 guint32 bitfield = t->size_bitfield;
1098 int i, count = mono_metadata_table_count (bitfield);
1101 g_assert (idx < t->rows);
1102 g_assert (idx >= 0);
1103 data = t->base + idx * t->row_size;
1105 g_assert (res_size == count);
1107 for (i = 0; i < count; i++) {
1108 int n = mono_metadata_table_size (bitfield, i);
1112 res [i] = *data; break;
1114 res [i] = read16 (data); break;
1116 res [i] = read32 (data); break;
1118 g_assert_not_reached ();
1125 * mono_metadata_decode_row_col:
1126 * @t: table to extract information from.
1127 * @idx: index for row in table.
1128 * @col: column in the row.
1130 * This function returns the value of column @col from the @idx
1131 * row in the table @t.
1134 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
1136 guint32 bitfield = t->size_bitfield;
1138 register const char *data;
1141 g_assert (idx < t->rows);
1142 g_assert (col < mono_metadata_table_count (bitfield));
1143 data = t->base + idx * t->row_size;
1145 n = mono_metadata_table_size (bitfield, 0);
1146 for (i = 0; i < col; ++i) {
1148 n = mono_metadata_table_size (bitfield, i + 1);
1154 return read16 (data);
1156 return read32 (data);
1158 g_assert_not_reached ();
1164 * mono_metadata_decode_blob_size:
1165 * @ptr: pointer to a blob object
1166 * @rptr: the new position of the pointer
1168 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1170 * Returns: the size of the blob object
1173 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1175 const unsigned char *ptr = (const unsigned char *)xptr;
1178 if ((*ptr & 0x80) == 0){
1179 size = ptr [0] & 0x7f;
1181 } else if ((*ptr & 0x40) == 0){
1182 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1185 size = ((ptr [0] & 0x1f) << 24) +
1197 * mono_metadata_decode_value:
1198 * @ptr: pointer to decode from
1199 * @rptr: the new position of the pointer
1201 * This routine decompresses 32-bit values as specified in the "Blob and
1202 * Signature" section (23.2)
1204 * Returns: the decoded value
1207 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1209 const unsigned char *ptr = (const unsigned char *) _ptr;
1210 unsigned char b = *ptr;
1213 if ((b & 0x80) == 0){
1216 } else if ((b & 0x40) == 0){
1217 len = ((b & 0x3f) << 8 | ptr [1]);
1220 len = ((b & 0x1f) << 24) |
1233 * mono_metadata_decode_signed_value:
1234 * @ptr: pointer to decode from
1235 * @rptr: the new position of the pointer
1237 * This routine decompresses 32-bit signed values
1238 * (not specified in the spec)
1240 * Returns: the decoded value
1243 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1245 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1246 gint32 ival = uval >> 1;
1249 /* ival is a truncated 2's complement negative number. */
1251 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1254 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1255 return ival - 0x2000;
1256 if (ival < 0x10000000)
1257 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1258 return ival - 0x10000000;
1259 g_assert (ival < 0x20000000);
1260 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1261 return ival - 0x20000000;
1265 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1266 * using the *Ptr tables in uncompressed metadata, if they are available.
1268 * FIXME: The caller is not forced to call this function, which is error-prone, since
1269 * forgetting to call it would only show up as a bug on uncompressed metadata.
1272 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1274 if (!image->uncompressed_metadata)
1278 case MONO_TABLE_METHOD:
1279 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1280 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1283 case MONO_TABLE_FIELD:
1284 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1285 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1288 case MONO_TABLE_EVENT:
1289 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1290 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1293 case MONO_TABLE_PROPERTY:
1294 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1295 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1298 case MONO_TABLE_PARAM:
1299 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1300 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1309 * mono_metadata_decode_table_row:
1311 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1312 * uncompressed metadata into account, so it should be used to access the
1313 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1314 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1317 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1319 if (image->uncompressed_metadata)
1320 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1322 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1326 * mono_metadata_decode_table_row_col:
1328 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1329 * uncompressed metadata into account, so it should be used to access the
1330 * Method, Field, Param and Event tables.
1332 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1334 if (image->uncompressed_metadata)
1335 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1337 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1341 * mono_metadata_parse_typedef_or_ref:
1342 * @m: a metadata context.
1343 * @ptr: a pointer to an encoded TypedefOrRef in @m
1344 * @rptr: pointer updated to match the end of the decoded stream
1346 * Returns: a token valid in the @m metadata decoded from
1347 * the compressed representation.
1350 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1353 token = mono_metadata_decode_value (ptr, &ptr);
1356 return mono_metadata_token_from_dor (token);
1360 * mono_metadata_parse_custom_mod:
1361 * @m: a metadata context.
1362 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1363 * @ptr: a pointer to (possibly) the start of a custom modifier list
1364 * @rptr: pointer updated to match the end of the decoded stream
1366 * Checks if @ptr points to a type custom modifier compressed representation.
1368 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1371 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1373 MonoCustomMod local;
1374 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1377 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1378 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1385 * mono_metadata_parse_array_internal:
1386 * @m: a metadata context.
1387 * @transient: whenever to allocate data from the heap
1388 * @ptr: a pointer to an encoded array description.
1389 * @rptr: pointer updated to match the end of the decoded stream
1391 * Decodes the compressed array description found in the metadata @m at @ptr.
1393 * Returns: a #MonoArrayType structure describing the array type
1394 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1395 * on the value of @transient.
1397 * LOCKING: Acquires the loader lock
1399 static MonoArrayType *
1400 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1401 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1404 MonoArrayType *array;
1407 etype = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error); //FIXME this doesn't respect @transient
1411 array = transient ? (MonoArrayType *)g_malloc0 (sizeof (MonoArrayType)) : (MonoArrayType *)mono_image_alloc0 (m, sizeof (MonoArrayType));
1412 array->eklass = mono_class_from_mono_type (etype);
1413 array->rank = mono_metadata_decode_value (ptr, &ptr);
1415 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1416 if (array->numsizes)
1417 array->sizes = transient ? (int *)g_malloc0 (sizeof (int) * array->numsizes) : (int *)mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1418 for (i = 0; i < array->numsizes; ++i)
1419 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1421 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1422 if (array->numlobounds)
1423 array->lobounds = transient ? (int *)g_malloc0 (sizeof (int) * array->numlobounds) : (int *)mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1424 for (i = 0; i < array->numlobounds; ++i)
1425 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1433 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1436 MonoArrayType *ret = mono_metadata_parse_array_internal (m, NULL, FALSE, ptr, rptr, &error);
1437 mono_error_cleanup (&error);
1443 * mono_metadata_free_array:
1444 * @array: array description
1446 * Frees the array description returned from mono_metadata_parse_array().
1449 mono_metadata_free_array (MonoArrayType *array)
1451 g_free (array->sizes);
1452 g_free (array->lobounds);
1457 * need to add common field and param attributes combinations:
1460 * public static literal
1463 * private static literal
1465 static const MonoType
1467 /* data, attrs, type, nmods, byref, pinned */
1468 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1469 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1470 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1471 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1472 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1473 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1474 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1475 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1476 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1477 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1478 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1479 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1480 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1481 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1482 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1483 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1484 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1485 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1486 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1487 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1488 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1489 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1490 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1491 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1492 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1493 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1494 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1495 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1496 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1497 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1498 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1499 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1500 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1501 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1504 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1506 static GHashTable *type_cache = NULL;
1507 static int next_generic_inst_id = 0;
1509 /* Protected by image_sets_mutex */
1510 static MonoImageSet *mscorlib_image_set;
1511 /* Protected by image_sets_mutex */
1512 static GPtrArray *image_sets;
1513 static mono_mutex_t image_sets_mutex;
1515 static guint mono_generic_class_hash (gconstpointer data);
1518 * MonoTypes with modifies are never cached, so we never check or use that field.
1521 mono_type_hash (gconstpointer data)
1523 const MonoType *type = (const MonoType *) data;
1524 if (type->type == MONO_TYPE_GENERICINST)
1525 return mono_generic_class_hash (type->data.generic_class);
1527 return type->type | (type->byref << 8) | (type->attrs << 9);
1531 mono_type_equal (gconstpointer ka, gconstpointer kb)
1533 const MonoType *a = (const MonoType *) ka;
1534 const MonoType *b = (const MonoType *) kb;
1536 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1538 /* need other checks */
1543 mono_metadata_generic_inst_hash (gconstpointer data)
1545 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1549 for (i = 0; i < ginst->type_argc; ++i) {
1551 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1554 return hash ^ (ginst->is_open << 8);
1558 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1562 // An optimization: if the ids of two insts are the same, we know they are the same inst and don't check contents.
1563 // Furthermore, because we perform early de-duping, if the ids differ, we know the contents differ.
1564 #ifndef MONO_SMALL_CONFIG // Optimization does not work in MONO_SMALL_CONFIG: There are no IDs
1565 if (a->id && b->id) { // "id 0" means "object has no id"-- de-duping hasn't been performed yet, must check contents.
1568 // In signature-comparison mode id equality implies object equality, but this is not true for inequality.
1569 // Two separate objects could have signature-equavalent contents.
1570 if (!signature_only)
1575 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1577 for (i = 0; i < a->type_argc; ++i) {
1578 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1585 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1587 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1588 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1590 return mono_generic_inst_equal_full (a, b, FALSE);
1594 mono_generic_class_hash (gconstpointer data)
1596 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1597 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1600 hash += gclass->is_tb_open;
1601 hash += mono_metadata_generic_context_hash (&gclass->context);
1607 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1609 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1610 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1612 return _mono_metadata_generic_class_equal (a, b, FALSE);
1616 * mono_metadata_init:
1618 * Initialize the global variables of this module.
1619 * This is a Mono runtime internal function.
1622 mono_metadata_init (void)
1626 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1628 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1629 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1631 mono_os_mutex_init_recursive (&image_sets_mutex);
1635 * mono_metadata_cleanup:
1637 * Free all resources used by this module.
1638 * This is a Mono runtime internal function.
1641 mono_metadata_cleanup (void)
1643 g_hash_table_destroy (type_cache);
1645 g_ptr_array_free (image_sets, TRUE);
1647 mono_os_mutex_destroy (&image_sets_mutex);
1651 * mono_metadata_parse_type:
1652 * @m: metadata context
1653 * @mode: king of type that may be found at @ptr
1654 * @opt_attrs: optional attributes to store in the returned type
1655 * @ptr: pointer to the type representation
1656 * @rptr: pointer updated to match the end of the decoded stream
1657 * @transient: whenever to allocate the result from the heap or from a mempool
1659 * Decode a compressed type description found at @ptr in @m.
1660 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1661 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1662 * This function can be used to decode type descriptions in method signatures,
1663 * field signatures, locals signatures etc.
1665 * To parse a generic type, `generic_container' points to the current class'es
1666 * (the `generic_container' field in the MonoClass) or the current generic method's
1667 * (stored in image->property_hash) generic container.
1668 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1669 * this MonoGenericContainer.
1671 * LOCKING: Acquires the loader lock.
1673 * Returns: a #MonoType structure representing the decoded type.
1676 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container,
1677 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1679 MonoType *type, *cached;
1681 gboolean byref = FALSE;
1682 gboolean pinned = FALSE;
1683 const char *tmp_ptr;
1684 int count = 0; // Number of mod arguments
1687 mono_error_init (error);
1690 * According to the spec, custom modifiers should come before the byref
1691 * flag, but the IL produced by ilasm from the following signature:
1692 * object modopt(...) &
1693 * starts with a byref flag, followed by the modifiers. (bug #49802)
1694 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1695 * it would be better to treat byref as real type constructor instead of
1697 * Also, pinned should come before anything else, but some MSV++ produced
1698 * assemblies violate this (#bug 61990).
1701 /* Count the modifiers first */
1706 case MONO_TYPE_PINNED:
1707 case MONO_TYPE_BYREF:
1710 case MONO_TYPE_CMOD_REQD:
1711 case MONO_TYPE_CMOD_OPT:
1713 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1720 if (count) { // There are mods, so the MonoType will be of nonstandard size.
1723 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1724 type = transient ? (MonoType *)g_malloc0 (size) : (MonoType *)mono_image_alloc0 (m, size);
1725 type->num_mods = count;
1727 mono_error_set_bad_image (error, m, "Invalid type with more than 64 modifiers");
1730 } else { // The type is of standard size, so we can allocate it on the stack.
1732 memset (type, 0, MONO_SIZEOF_TYPE);
1735 /* Iterate again, but now parse pinned, byref and custom modifiers */
1740 case MONO_TYPE_PINNED:
1744 case MONO_TYPE_BYREF:
1748 case MONO_TYPE_CMOD_REQD:
1749 case MONO_TYPE_CMOD_OPT:
1750 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1758 type->attrs = opt_attrs;
1759 type->byref = byref;
1760 type->pinned = pinned ? 1 : 0;
1762 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr, error))
1768 // Possibly we can return an already-allocated type instead of the one we decoded
1769 if (!type->num_mods && !transient) {
1770 /* no need to free type here, because it is on the stack */
1771 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1772 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1774 /* Consider the case:
1776 class Foo<T> { class Bar {} }
1777 class Test : Foo<Test>.Bar {}
1779 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1780 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1782 We ensure that the MonoClass is in a state that we can canonicalize to:
1784 klass->byval_arg.data.klass == klass
1785 klass->this_arg.data.klass == klass
1787 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1789 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1790 of a MonoClass which currently holds the loader lock. 'type' is local.
1792 if (ret->data.klass == type->data.klass) {
1796 /* No need to use locking since nobody is modifying the hash table */
1797 if ((cached = (MonoType *)g_hash_table_lookup (type_cache, type))) {
1802 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1804 if (type == &stype) { // Type was allocated on the stack, so we need to copy it to safety
1805 type = transient ? (MonoType *)g_malloc (MONO_SIZEOF_TYPE) : (MonoType *)mono_image_alloc (m, MONO_SIZEOF_TYPE);
1806 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1813 mono_metadata_parse_type_checked (MonoImage *m, MonoGenericContainer *container,
1814 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1816 return mono_metadata_parse_type_internal (m, container, opt_attrs, transient, ptr, rptr, error);
1820 * LOCKING: Acquires the loader lock.
1823 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1824 const char *ptr, const char **rptr)
1827 MonoType * type = mono_metadata_parse_type_internal (m, NULL, opt_attrs, FALSE, ptr, rptr, &error);
1828 mono_error_cleanup (&error);
1833 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1835 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1836 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1837 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1839 if (def < methodt->rows)
1840 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1842 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1844 for (i = param_index; i < lastp; ++i) {
1845 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1854 * mono_metadata_get_param_attrs:
1856 * @m The image to loader parameter attributes from
1857 * @def method def token (one based)
1858 * @param_count number of params to decode including the return value
1860 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1861 * returned memory needs to be freed by the caller. If all the param attributes are
1862 * 0, then NULL is returned.
1865 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1867 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1868 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1869 guint32 cols [MONO_PARAM_SIZE];
1870 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1873 if (def < methodt->rows)
1874 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1876 lastp = paramt->rows + 1;
1878 for (i = param_index; i < lastp; ++i) {
1879 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1880 if (cols [MONO_PARAM_FLAGS]) {
1882 pattrs = g_new0 (int, param_count);
1883 /* at runtime we just ignore this kind of malformed file:
1884 * the verifier can signal the error to the user
1886 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1888 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1897 * mono_metadata_parse_signature:
1898 * @image: metadata context
1899 * @token: metadata token
1901 * Decode a method signature stored in the STANDALONESIG table
1903 * Returns: a MonoMethodSignature describing the signature.
1905 MonoMethodSignature*
1906 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1909 MonoMethodSignature *ret;
1910 ret = mono_metadata_parse_signature_checked (image, token, &error);
1911 mono_error_cleanup (&error);
1916 * mono_metadata_parse_signature_checked:
1917 * @image: metadata context
1918 * @token: metadata token
1919 * @error: set on error
1921 * Decode a method signature stored in the STANDALONESIG table
1923 * Returns: a MonoMethodSignature describing the signature. On failure
1924 * returns NULL and sets @error.
1926 MonoMethodSignature*
1927 mono_metadata_parse_signature_checked (MonoImage *image, guint32 token, MonoError *error)
1930 mono_error_init (error);
1931 MonoTableInfo *tables = image->tables;
1932 guint32 idx = mono_metadata_token_index (token);
1936 if (image_is_dynamic (image)) {
1937 return (MonoMethodSignature *)mono_lookup_dynamic_token (image, token, NULL, error);
1940 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1942 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1944 ptr = mono_metadata_blob_heap (image, sig);
1945 mono_metadata_decode_blob_size (ptr, &ptr);
1947 return mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
1951 * mono_metadata_signature_alloc:
1952 * @image: metadata context
1953 * @nparmas: number of parameters in the signature
1955 * Allocate a MonoMethodSignature structure with the specified number of params.
1956 * The return type and the params types need to be filled later.
1957 * This is a Mono runtime internal function.
1959 * LOCKING: Assumes the loader lock is held.
1961 * Returns: the new MonoMethodSignature structure.
1963 MonoMethodSignature*
1964 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1966 MonoMethodSignature *sig;
1968 sig = (MonoMethodSignature *)mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1969 sig->param_count = nparams;
1970 sig->sentinelpos = -1;
1975 static MonoMethodSignature*
1976 mono_metadata_signature_dup_internal_with_padding (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig, size_t padding)
1978 int sigsize, sig_header_size;
1979 MonoMethodSignature *ret;
1980 sigsize = sig_header_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *) + padding;
1982 sigsize += MONO_SIZEOF_TYPE;
1985 ret = (MonoMethodSignature *)mono_image_alloc (image, sigsize);
1987 ret = (MonoMethodSignature *)mono_mempool_alloc (mp, sigsize);
1989 ret = (MonoMethodSignature *)g_malloc (sigsize);
1992 memcpy (ret, sig, sig_header_size - padding);
1994 // Copy return value because of ownership semantics.
1996 // Danger! Do not alter padding use without changing the dup_add_this below
1997 intptr_t end_of_header = (intptr_t)( (char*)(ret) + sig_header_size);
1998 ret->ret = (MonoType *)end_of_header;
1999 memcpy (ret->ret, sig->ret, MONO_SIZEOF_TYPE);
2005 static MonoMethodSignature*
2006 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
2008 return mono_metadata_signature_dup_internal_with_padding (image, mp, sig, 0);
2011 * signature_dup_add_this:
2013 * Make a copy of @sig, adding an explicit this argument.
2015 MonoMethodSignature*
2016 mono_metadata_signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
2018 MonoMethodSignature *ret;
2019 ret = mono_metadata_signature_dup_internal_with_padding (image, NULL, sig, sizeof (MonoType *));
2021 ret->param_count = sig->param_count + 1;
2022 ret->hasthis = FALSE;
2024 for (int i = sig->param_count - 1; i >= 0; i --)
2025 ret->params [i + 1] = sig->params [i];
2026 ret->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
2028 for (int i = sig->param_count - 1; i >= 0; i --)
2029 g_assert(ret->params [i + 1]->type == sig->params [i]->type && ret->params [i+1]->type != MONO_TYPE_END);
2030 g_assert (ret->ret->type == sig->ret->type && ret->ret->type != MONO_TYPE_END);
2037 MonoMethodSignature*
2038 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
2040 MonoMethodSignature *ret = mono_metadata_signature_dup_internal (image, NULL, sig);
2042 for (int i = 0 ; i < sig->param_count; i ++)
2043 g_assert(ret->params [i]->type == sig->params [i]->type);
2044 g_assert (ret->ret->type == sig->ret->type);
2049 /*The mempool is accessed without synchronization*/
2050 MonoMethodSignature*
2051 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
2053 return mono_metadata_signature_dup_internal (NULL, mp, sig);
2057 * mono_metadata_signature_dup:
2058 * @sig: method signature
2060 * Duplicate an existing MonoMethodSignature so it can be modified.
2061 * This is a Mono runtime internal function.
2063 * Returns: the new MonoMethodSignature structure.
2065 MonoMethodSignature*
2066 mono_metadata_signature_dup (MonoMethodSignature *sig)
2068 return mono_metadata_signature_dup_full (NULL, sig);
2072 * mono_metadata_signature_size:
2074 * Return the amount of memory allocated to SIG.
2077 mono_metadata_signature_size (MonoMethodSignature *sig)
2079 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
2083 * mono_metadata_parse_method_signature:
2084 * @m: metadata context
2085 * @generic_container: generics container
2086 * @def: the MethodDef index or 0 for Ref signatures.
2087 * @ptr: pointer to the signature metadata representation
2088 * @rptr: pointer updated to match the end of the decoded stream
2090 * Decode a method signature stored at @ptr.
2091 * This is a Mono runtime internal function.
2093 * LOCKING: Assumes the loader lock is held.
2095 * Returns: a MonoMethodSignature describing the signature.
2097 MonoMethodSignature *
2098 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
2099 int def, const char *ptr, const char **rptr, MonoError *error)
2101 MonoMethodSignature *method;
2102 int i, *pattrs = NULL;
2103 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
2104 guint32 gen_param_count = 0;
2105 gboolean is_open = FALSE;
2107 mono_error_init (error);
2110 gen_param_count = 1;
2115 call_convention = *ptr & 0x0F;
2117 if (gen_param_count)
2118 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
2119 param_count = mono_metadata_decode_value (ptr, &ptr);
2122 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 */
2124 method = mono_metadata_signature_alloc (m, param_count);
2125 method->hasthis = hasthis;
2126 method->explicit_this = explicit_this;
2127 method->call_convention = call_convention;
2128 method->generic_param_count = gen_param_count;
2130 if (call_convention != 0xa) {
2131 method->ret = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [0] : 0, FALSE, ptr, &ptr, error);
2133 mono_metadata_free_method_signature (method);
2137 is_open = mono_class_is_open_constructed_type (method->ret);
2140 for (i = 0; i < method->param_count; ++i) {
2141 if (*ptr == MONO_TYPE_SENTINEL) {
2142 if (method->call_convention != MONO_CALL_VARARG || def) {
2143 mono_error_set_bad_image (error, m, "Found sentinel for methoddef or no vararg");
2147 if (method->sentinelpos >= 0) {
2148 mono_error_set_bad_image (error, m, "Found sentinel twice in the same signature.");
2152 method->sentinelpos = i;
2155 method->params [i] = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [i+1] : 0, FALSE, ptr, &ptr, error);
2156 if (!method->params [i]) {
2157 mono_metadata_free_method_signature (method);
2162 is_open = mono_class_is_open_constructed_type (method->params [i]);
2165 /* The sentinel could be missing if the caller does not pass any additional arguments */
2166 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
2167 method->sentinelpos = method->param_count;
2169 method->has_type_parameters = is_open;
2171 if (def && (method->call_convention == MONO_CALL_VARARG))
2172 method->sentinelpos = method->param_count;
2179 * Add signature to a cache and increase ref count...
2186 * mono_metadata_parse_method_signature:
2187 * @m: metadata context
2188 * @def: the MethodDef index or 0 for Ref signatures.
2189 * @ptr: pointer to the signature metadata representation
2190 * @rptr: pointer updated to match the end of the decoded stream
2192 * Decode a method signature stored at @ptr.
2193 * This is a Mono runtime internal function.
2195 * LOCKING: Assumes the loader lock is held.
2197 * Returns: a MonoMethodSignature describing the signature.
2199 MonoMethodSignature *
2200 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
2203 * This function MUST NOT be called by runtime code as it does error handling incorrectly.
2204 * Use mono_metadata_parse_method_signature_full instead.
2205 * It's ok to asser on failure as we no longer use it.
2208 MonoMethodSignature *ret;
2209 ret = mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr, &error);
2210 g_assert (mono_error_ok (&error));
2216 * mono_metadata_free_method_signature:
2217 * @sig: signature to destroy
2219 * Free the memory allocated in the signature @sig.
2220 * This method needs to be robust and work also on partially-built
2221 * signatures, so it does extra checks.
2224 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2226 /* Everything is allocated from mempools */
2230 mono_metadata_free_type (sig->ret);
2231 for (i = 0; i < sig->param_count; ++i) {
2232 if (sig->params [i])
2233 mono_metadata_free_type (sig->params [i]);
2239 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2243 /* Allocated in inflate_generic_signature () */
2245 mono_metadata_free_type (sig->ret);
2246 for (i = 0; i < sig->param_count; ++i) {
2247 if (sig->params [i])
2248 mono_metadata_free_type (sig->params [i]);
2254 inflated_method_equal (gconstpointer a, gconstpointer b)
2256 const MonoMethodInflated *ma = (const MonoMethodInflated *)a;
2257 const MonoMethodInflated *mb = (const MonoMethodInflated *)b;
2258 if (ma->declaring != mb->declaring)
2260 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2264 inflated_method_hash (gconstpointer a)
2266 const MonoMethodInflated *ma = (const MonoMethodInflated *)a;
2267 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring));
2271 inflated_signature_equal (gconstpointer a, gconstpointer b)
2273 const MonoInflatedMethodSignature *sig1 = (const MonoInflatedMethodSignature *)a;
2274 const MonoInflatedMethodSignature *sig2 = (const MonoInflatedMethodSignature *)b;
2276 /* sig->sig is assumed to be canonized */
2277 if (sig1->sig != sig2->sig)
2279 /* The generic instances are canonized */
2280 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2284 inflated_signature_hash (gconstpointer a)
2286 const MonoInflatedMethodSignature *sig = (const MonoInflatedMethodSignature *)a;
2288 /* sig->sig is assumed to be canonized */
2289 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2293 dump_ginst (MonoGenericInst *ginst)
2298 g_print ("Ginst: <");
2299 for (i = 0; i < ginst->type_argc; ++i) {
2302 name = mono_type_get_name (ginst->type_argv [i]);
2303 g_print ("%s", name);
2309 static gboolean type_in_image (MonoType *type, MonoImage *image);
2312 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2314 gpointer iter = NULL;
2317 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2318 if (type_in_image (p, image))
2321 return type_in_image (mono_signature_get_return_type (sig), image);
2325 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2329 for (i = 0; i < ginst->type_argc; ++i) {
2330 if (type_in_image (ginst->type_argv [i], image))
2338 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2340 return gclass->container_class->image == image ||
2341 ginst_in_image (gclass->context.class_inst, image);
2345 type_in_image (MonoType *type, MonoImage *image)
2348 switch (type->type) {
2349 case MONO_TYPE_GENERICINST:
2350 return gclass_in_image (type->data.generic_class, image);
2352 type = type->data.type;
2354 case MONO_TYPE_SZARRAY:
2355 type = &type->data.klass->byval_arg;
2357 case MONO_TYPE_ARRAY:
2358 type = &type->data.array->eklass->byval_arg;
2360 case MONO_TYPE_FNPTR:
2361 return signature_in_image (type->data.method, image);
2363 case MONO_TYPE_MVAR:
2364 return image == get_image_for_generic_param (type->data.generic_param);
2366 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2367 return image == mono_class_from_mono_type (type)->image;
2372 image_sets_lock (void)
2374 mono_os_mutex_lock (&image_sets_mutex);
2378 image_sets_unlock (void)
2380 mono_os_mutex_unlock (&image_sets_mutex);
2386 * Return a MonoImageSet representing the set of images in IMAGES.
2388 static MonoImageSet*
2389 get_image_set (MonoImage **images, int nimages)
2395 /* Common case: Image set contains corlib only. If we've seen that case before, we cached the set. */
2396 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2397 return mscorlib_image_set;
2399 /* Happens with empty generic instances */
2400 // 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.
2402 return mscorlib_image_set;
2407 image_sets = g_ptr_array_new ();
2409 // Before we go on, we should check to see whether a MonoImageSet with these images already exists.
2410 // We can search the referred-by imagesets of any one of our images to do this. Arbitrarily pick one here:
2411 if (images [0] == mono_defaults.corlib && nimages > 1)
2412 l = images [1]->image_sets; // Prefer not to search the imagesets of corlib-- that will be a long list.
2414 l = images [0]->image_sets;
2417 while (l) // Iterate over selected list, looking for an imageset with members equal to our target one
2419 set = (MonoImageSet *)l->data;
2421 if (set->nimages == nimages) { // Member count differs, this can't be it
2422 // Compare all members to all members-- order might be different
2423 for (j = 0; j < nimages; ++j) {
2424 for (k = 0; k < nimages; ++k)
2425 if (set->images [k] == images [j])
2426 break; // Break on match
2428 // If we iterated all the way through set->images, images[j] was *not* found.
2430 break; // Break on "image not found"
2433 // If we iterated all the way through images without breaking, all items in images were found in set->images
2435 break; // Break on "found a set with equal members"
2441 // If we iterated all the way through l without breaking, the imageset does not already exist and we shuold create it
2443 set = g_new0 (MonoImageSet, 1);
2444 set->nimages = nimages;
2445 set->images = g_new0 (MonoImage*, nimages);
2446 mono_os_mutex_init_recursive (&set->lock);
2447 for (i = 0; i < nimages; ++i)
2448 set->images [i] = images [i];
2449 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2450 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2451 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2452 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2454 for (i = 0; i < nimages; ++i)
2455 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2457 g_ptr_array_add (image_sets, set);
2460 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2461 mono_memory_barrier ();
2462 mscorlib_image_set = set;
2465 image_sets_unlock ();
2471 delete_image_set (MonoImageSet *set)
2475 g_hash_table_destroy (set->gclass_cache);
2476 g_hash_table_destroy (set->ginst_cache);
2477 g_hash_table_destroy (set->gmethod_cache);
2478 g_hash_table_destroy (set->gsignature_cache);
2480 mono_wrapper_caches_free (&set->wrapper_caches);
2484 for (i = 0; i < set->nimages; ++i)
2485 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2487 g_ptr_array_remove (image_sets, set);
2489 image_sets_unlock ();
2492 mono_mempool_destroy (set->mempool);
2493 g_free (set->images);
2494 mono_os_mutex_destroy (&set->lock);
2499 mono_image_set_lock (MonoImageSet *set)
2501 mono_os_mutex_lock (&set->lock);
2505 mono_image_set_unlock (MonoImageSet *set)
2507 mono_os_mutex_unlock (&set->lock);
2511 mono_image_set_alloc (MonoImageSet *set, guint size)
2515 mono_image_set_lock (set);
2517 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2518 res = mono_mempool_alloc (set->mempool, size);
2519 mono_image_set_unlock (set);
2525 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2529 mono_image_set_lock (set);
2531 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2532 res = mono_mempool_alloc0 (set->mempool, size);
2533 mono_image_set_unlock (set);
2539 mono_image_set_strdup (MonoImageSet *set, const char *s)
2543 mono_image_set_lock (set);
2545 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2546 res = mono_mempool_strdup (set->mempool, s);
2547 mono_image_set_unlock (set);
2552 // Get a descriptive string for a MonoImageSet
2553 // Callers are obligated to free buffer with g_free after use
2555 mono_image_set_description (MonoImageSet *set)
2557 GString *result = g_string_new (NULL);
2559 g_string_append (result, "[");
2560 for (img = 0; img < set->nimages; img++)
2563 g_string_append (result, ", ");
2564 g_string_append (result, set->images[img]->name);
2566 g_string_append (result, "]");
2567 return g_string_free (result, FALSE);
2571 * Structure used by the collect_..._images functions to store the image list.
2574 MonoImage *image_buf [64];
2576 int nimages, images_len;
2580 collect_data_init (CollectData *data)
2582 data->images = data->image_buf;
2583 data->images_len = 64;
2588 collect_data_free (CollectData *data)
2590 if (data->images != data->image_buf)
2591 g_free (data->images);
2595 enlarge_data (CollectData *data)
2597 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2598 MonoImage **d = g_new (MonoImage *, new_len);
2601 g_assert_not_reached ();
2602 memcpy (d, data->images, data->images_len);
2603 if (data->images != data->image_buf)
2604 g_free (data->images);
2606 data->images_len = new_len;
2610 add_image (MonoImage *image, CollectData *data)
2614 /* The arrays are small, so use a linear search instead of a hash table */
2615 for (i = 0; i < data->nimages; ++i)
2616 if (data->images [i] == image)
2619 if (data->nimages == data->images_len)
2620 enlarge_data (data);
2622 data->images [data->nimages ++] = image;
2626 collect_type_images (MonoType *type, CollectData *data);
2629 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2633 for (i = 0; i < ginst->type_argc; ++i) {
2634 collect_type_images (ginst->type_argv [i], data);
2639 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2641 add_image (gclass->container_class->image, data);
2642 if (gclass->context.class_inst)
2643 collect_ginst_images (gclass->context.class_inst, data);
2647 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2649 gpointer iter = NULL;
2652 collect_type_images (mono_signature_get_return_type (sig), data);
2653 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2654 collect_type_images (p, data);
2658 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2660 collect_signature_images (sig->sig, data);
2661 if (sig->context.class_inst)
2662 collect_ginst_images (sig->context.class_inst, data);
2663 if (sig->context.method_inst)
2664 collect_ginst_images (sig->context.method_inst, data);
2668 collect_method_images (MonoMethodInflated *method, CollectData *data)
2670 MonoMethod *m = method->declaring;
2672 add_image (method->declaring->klass->image, data);
2673 if (method->context.class_inst)
2674 collect_ginst_images (method->context.class_inst, data);
2675 if (method->context.method_inst)
2676 collect_ginst_images (method->context.method_inst, data);
2678 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2680 if (image_is_dynamic (m->klass->image))
2681 collect_signature_images (mono_method_signature (m), data);
2685 collect_type_images (MonoType *type, CollectData *data)
2688 switch (type->type) {
2689 case MONO_TYPE_GENERICINST:
2690 collect_gclass_images (type->data.generic_class, data);
2693 type = type->data.type;
2695 case MONO_TYPE_SZARRAY:
2696 type = &type->data.klass->byval_arg;
2698 case MONO_TYPE_ARRAY:
2699 type = &type->data.array->eklass->byval_arg;
2701 case MONO_TYPE_FNPTR:
2702 //return signature_in_image (type->data.method, image);
2703 g_assert_not_reached ();
2705 case MONO_TYPE_MVAR:
2707 MonoImage *image = get_image_for_generic_param (type->data.generic_param);
2708 add_image (image, data);
2711 case MONO_TYPE_CLASS:
2712 case MONO_TYPE_VALUETYPE:
2713 add_image (mono_class_from_mono_type (type)->image, data);
2716 add_image (mono_defaults.corlib, data);
2723 } CleanForImageUserData;
2726 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2728 MonoGenericClass *gclass = (MonoGenericClass *)key;
2729 CleanForImageUserData *user_data = (CleanForImageUserData *)data;
2731 g_assert (gclass_in_image (gclass, user_data->image));
2733 user_data->list = g_slist_prepend (user_data->list, gclass);
2738 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2740 MonoGenericInst *ginst = (MonoGenericInst *)key;
2741 CleanForImageUserData *user_data = (CleanForImageUserData *)data;
2743 // This doesn't work during corlib compilation
2744 //g_assert (ginst_in_image (ginst, user_data->image));
2746 user_data->list = g_slist_prepend (user_data->list, ginst);
2751 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2753 MonoImage *image = (MonoImage *)data;
2754 MonoMethodInflated *method = (MonoMethodInflated *)key;
2757 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2758 g_assert (method->declaring->klass->image == image ||
2759 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2760 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2766 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2768 MonoImage *image = (MonoImage *)data;
2769 MonoInflatedMethodSignature *sig = (MonoInflatedMethodSignature *)key;
2771 return signature_in_image (sig->sig, image) ||
2772 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2773 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2777 check_gmethod (gpointer key, gpointer value, gpointer data)
2779 MonoMethodInflated *method = (MonoMethodInflated *)key;
2780 MonoImage *image = (MonoImage *)data;
2782 if (method->context.class_inst)
2783 g_assert (!ginst_in_image (method->context.class_inst, image));
2784 if (method->context.method_inst)
2785 g_assert (!ginst_in_image (method->context.method_inst, image));
2786 if (((MonoMethod*)method)->signature)
2787 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2793 * Run a consistency check on the image set data structures.
2795 static G_GNUC_UNUSED void
2796 check_image_sets (MonoImage *image)
2799 GSList *l = image->image_sets;
2804 for (i = 0; i < image_sets->len; ++i) {
2805 MonoImageSet *set = (MonoImageSet *)g_ptr_array_index (image_sets, i);
2807 if (!g_slist_find (l, set)) {
2808 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2814 mono_metadata_clean_for_image (MonoImage *image)
2816 CleanForImageUserData ginst_data, gclass_data;
2817 GSList *l, *set_list;
2819 //check_image_sets (image);
2822 * The data structures could reference each other so we delete them in two phases.
2823 * This is required because of the hashing functions in gclass/ginst_cache.
2825 ginst_data.image = gclass_data.image = image;
2826 ginst_data.list = gclass_data.list = NULL;
2828 /* Collect the items to delete */
2829 /* delete_image_set () modifies the lists so make a copy */
2830 for (l = image->image_sets; l; l = l->next) {
2831 MonoImageSet *set = (MonoImageSet *)l->data;
2833 mono_image_set_lock (set);
2834 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2835 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2836 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2837 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2838 mono_image_set_unlock (set);
2841 /* Delete the removed items */
2842 for (l = ginst_data.list; l; l = l->next)
2843 free_generic_inst ((MonoGenericInst *)l->data);
2844 for (l = gclass_data.list; l; l = l->next)
2845 free_generic_class ((MonoGenericClass *)l->data);
2846 g_slist_free (ginst_data.list);
2847 g_slist_free (gclass_data.list);
2848 /* delete_image_set () modifies the lists so make a copy */
2849 set_list = g_slist_copy (image->image_sets);
2850 for (l = set_list; l; l = l->next) {
2851 MonoImageSet *set = (MonoImageSet *)l->data;
2853 delete_image_set (set);
2855 g_slist_free (set_list);
2859 free_inflated_method (MonoMethodInflated *imethod)
2861 MonoMethod *method = (MonoMethod*)imethod;
2863 if (method->signature)
2864 mono_metadata_free_inflated_signature (method->signature);
2866 if (method->wrapper_type)
2867 g_free (((MonoMethodWrapper*)method)->method_data);
2873 free_generic_inst (MonoGenericInst *ginst)
2877 /* The ginst itself is allocated from the image set mempool */
2878 for (i = 0; i < ginst->type_argc; ++i)
2879 mono_metadata_free_type (ginst->type_argv [i]);
2883 free_generic_class (MonoGenericClass *gclass)
2885 /* The gclass itself is allocated from the image set mempool */
2886 if (gclass->cached_class && gclass->cached_class->interface_id)
2887 mono_unload_interface_id (gclass->cached_class);
2891 free_inflated_signature (MonoInflatedMethodSignature *sig)
2893 mono_metadata_free_inflated_signature (sig->sig);
2898 * mono_metadata_get_inflated_signature:
2900 * Given an inflated signature and a generic context, return a canonical copy of the
2901 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2903 MonoMethodSignature *
2904 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2906 MonoInflatedMethodSignature helper;
2907 MonoInflatedMethodSignature *res;
2912 helper.context.class_inst = context->class_inst;
2913 helper.context.method_inst = context->method_inst;
2915 collect_data_init (&data);
2917 collect_inflated_signature_images (&helper, &data);
2919 set = get_image_set (data.images, data.nimages);
2921 collect_data_free (&data);
2923 mono_image_set_lock (set);
2925 res = (MonoInflatedMethodSignature *)g_hash_table_lookup (set->gsignature_cache, &helper);
2927 res = g_new0 (MonoInflatedMethodSignature, 1);
2929 res->context.class_inst = context->class_inst;
2930 res->context.method_inst = context->method_inst;
2931 g_hash_table_insert (set->gsignature_cache, res, res);
2934 mono_image_set_unlock (set);
2940 mono_metadata_get_image_set_for_method (MonoMethodInflated *method)
2943 CollectData image_set_data;
2945 collect_data_init (&image_set_data);
2946 collect_method_images (method, &image_set_data);
2947 set = get_image_set (image_set_data.images, image_set_data.nimages);
2948 collect_data_free (&image_set_data);
2954 * mono_metadata_get_generic_inst:
2956 * Given a list of types, return a MonoGenericInst that represents that list.
2957 * The returned MonoGenericInst has its own copy of the list of types. The list
2958 * passed in the argument can be freed, modified or disposed of.
2962 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2964 MonoGenericInst *ginst;
2967 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2969 for (i = 0; i < type_argc; ++i)
2970 if (mono_class_is_open_constructed_type (type_argv [i]))
2972 is_open = (i < type_argc);
2974 ginst = (MonoGenericInst *)g_alloca (size);
2975 memset (ginst, 0, sizeof (MonoGenericInst));
2976 ginst->is_open = is_open;
2977 ginst->type_argc = type_argc;
2978 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2980 return mono_metadata_get_canonical_generic_inst (ginst);
2985 * mono_metadata_get_canonical_generic_inst:
2986 * @candidate: an arbitrary generic instantiation
2988 * Returns the canonical generic instantiation that represents the given
2989 * candidate by identifying the image set for the candidate instantiation and
2990 * finding the instance in the image set or adding a copy of the given instance
2993 * The returned MonoGenericInst has its own copy of the list of types. The list
2994 * passed in the argument can be freed, modified or disposed of.
2998 mono_metadata_get_canonical_generic_inst (MonoGenericInst *candidate)
3001 int type_argc = candidate->type_argc;
3002 gboolean is_open = candidate->is_open;
3005 collect_data_init (&data);
3007 collect_ginst_images (candidate, &data);
3009 set = get_image_set (data.images, data.nimages);
3011 collect_data_free (&data);
3013 mono_image_set_lock (set);
3015 MonoGenericInst *ginst = (MonoGenericInst *)g_hash_table_lookup (set->ginst_cache, candidate);
3017 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
3018 ginst = (MonoGenericInst *)mono_image_set_alloc0 (set, size);
3019 #ifndef MONO_SMALL_CONFIG
3020 ginst->id = ++next_generic_inst_id;
3022 ginst->is_open = is_open;
3023 ginst->type_argc = type_argc;
3025 for (int i = 0; i < type_argc; ++i)
3026 ginst->type_argv [i] = mono_metadata_type_dup (NULL, candidate->type_argv [i]);
3028 g_hash_table_insert (set->ginst_cache, ginst, ginst);
3031 mono_image_set_unlock (set);
3036 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
3038 MonoGenericContainer *container = mono_class_get_generic_container (container_class);
3040 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
3042 return inst == container->context.class_inst;
3046 * mono_metadata_lookup_generic_class:
3048 * Returns a MonoGenericClass with the given properties.
3052 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
3054 MonoGenericClass *gclass;
3055 MonoGenericClass helper;
3056 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
3060 g_assert (mono_class_get_generic_container (container_class)->type_argc == inst->type_argc);
3062 memset (&helper, 0, sizeof(helper)); // act like g_new0
3063 helper.container_class = container_class;
3064 helper.context.class_inst = inst;
3065 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
3066 helper.is_tb_open = is_tb_open;
3068 collect_data_init (&data);
3070 collect_gclass_images (&helper, &data);
3072 set = get_image_set (data.images, data.nimages);
3074 collect_data_free (&data);
3076 mono_image_set_lock (set);
3078 gclass = (MonoGenericClass *)g_hash_table_lookup (set->gclass_cache, &helper);
3080 /* A tripwire just to keep us honest */
3081 g_assert (!helper.cached_class);
3084 mono_image_set_unlock (set);
3088 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
3090 gclass->is_dynamic = 1;
3092 gclass->is_tb_open = is_tb_open;
3093 gclass->container_class = container_class;
3094 gclass->context.class_inst = inst;
3095 gclass->context.method_inst = NULL;
3096 gclass->owner = set;
3097 if (inst == mono_class_get_generic_container (container_class)->context.class_inst && !is_tb_open)
3098 gclass->cached_class = container_class;
3100 g_hash_table_insert (set->gclass_cache, gclass, gclass);
3102 mono_image_set_unlock (set);
3108 * mono_metadata_inflate_generic_inst:
3110 * Instantiate the generic instance @ginst with the context @context.
3111 * Check @error for success.
3115 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
3117 MonoType **type_argv;
3118 MonoGenericInst *nginst = NULL;
3121 mono_error_init (error);
3123 if (!ginst->is_open)
3126 type_argv = g_new0 (MonoType*, ginst->type_argc);
3128 for (i = 0; i < ginst->type_argc; i++) {
3129 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
3130 if (!mono_error_ok (error))
3135 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
3138 for (i = 0; i < count; i++)
3139 mono_metadata_free_type (type_argv [i]);
3146 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3147 int count, const char *ptr, const char **rptr, MonoError *error)
3149 MonoType **type_argv;
3150 MonoGenericInst *ginst;
3153 mono_error_init (error);
3154 type_argv = g_new0 (MonoType*, count);
3156 for (i = 0; i < count; i++) {
3157 MonoType *t = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error);
3168 ginst = mono_metadata_get_generic_inst (count, type_argv);
3176 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3177 const char *ptr, const char **rptr, MonoError *error)
3179 MonoGenericInst *inst;
3184 mono_error_init (error);
3186 // XXX how about transient?
3187 gtype = mono_metadata_parse_type_checked (m, NULL, 0, FALSE, ptr, &ptr, error);
3191 gklass = mono_class_from_mono_type (gtype);
3192 if (!mono_class_is_gtd (gklass)) {
3193 mono_error_set_bad_image (error, m, "Generic instance with non-generic definition");
3197 count = mono_metadata_decode_value (ptr, &ptr);
3198 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr, error);
3205 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3211 * @gc: The generic container to normalize
3212 * @type: The kind of generic parameters the resulting generic-container should contain
3215 static MonoGenericContainer *
3216 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3218 gboolean is_var = (type == MONO_TYPE_VAR);
3222 g_assert (is_var || type == MONO_TYPE_MVAR);
3225 if (gc->is_method || gc->parent)
3227 * The current MonoGenericContainer is a generic method -> its `parent'
3228 * points to the containing class'es container.
3236 MonoGenericContainer *
3237 get_anonymous_container_for_image (MonoImage *image, gboolean is_mvar)
3239 MonoGenericContainer **container_pointer;
3241 container_pointer = &image->anonymous_generic_method_container;
3243 container_pointer = &image->anonymous_generic_class_container;
3244 MonoGenericContainer *result = *container_pointer;
3246 // This container has never been created; make it now.
3249 // Note this is never deallocated anywhere-- it exists for the lifetime of the image it's allocated from
3250 result = (MonoGenericContainer *)mono_image_alloc0 (image, sizeof (MonoGenericContainer));
3251 result->owner.image = image;
3252 result->is_anonymous = TRUE;
3253 result->is_small_param = TRUE;
3254 result->is_method = is_mvar;
3256 // If another thread already made a container, use that and leak this new one.
3257 // (Technically it would currently be safe to just assign instead of CASing.)
3258 MonoGenericContainer *exchange = (MonoGenericContainer *)InterlockedCompareExchangePointer ((volatile gpointer *)container_pointer, result, NULL);
3266 * mono_metadata_parse_generic_param:
3267 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3268 * see mono_metadata_parse_type_checked() for details.
3269 * Internal routine to parse a generic type parameter.
3270 * LOCKING: Acquires the loader lock
3272 static MonoGenericParam *
3273 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3274 MonoTypeEnum type, const char *ptr, const char **rptr, MonoError *error)
3276 int index = mono_metadata_decode_value (ptr, &ptr);
3280 mono_error_init (error);
3282 generic_container = select_container (generic_container, type);
3283 if (!generic_container) {
3284 gboolean is_mvar = FALSE;
3289 case MONO_TYPE_MVAR:
3293 g_error ("Cerating generic param object with invalid MonoType"); // This is not a generic param
3296 /* Create dummy MonoGenericParam */
3297 MonoGenericParam *param;
3299 param = (MonoGenericParam *)mono_image_alloc0 (m, sizeof (MonoGenericParam));
3301 param->owner = get_anonymous_container_for_image (m, is_mvar);
3306 if (index >= generic_container->type_argc) {
3307 mono_error_set_bad_image (error, m, "Invalid generic %s parameter index %d, max index is %d",
3308 generic_container->is_method ? "method" : "type",
3309 index, generic_container->type_argc);
3313 //This can't return NULL
3314 return mono_generic_container_get_param (generic_container, index);
3318 * mono_metadata_get_shared_type:
3320 * Return a shared instance of TYPE, if available, NULL otherwise.
3321 * Shared MonoType instances help save memory. Their contents should not be modified
3322 * by the caller. They do not need to be freed as their lifetime is bound by either
3323 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3324 * instance they are embedded in. If they are freed, they should be freed using
3325 * mono_metadata_free_type () instead of g_free ().
3328 mono_metadata_get_shared_type (MonoType *type)
3332 /* No need to use locking since nobody is modifying the hash table */
3333 if ((cached = (MonoType *)g_hash_table_lookup (type_cache, type)))
3336 switch (type->type){
3337 case MONO_TYPE_CLASS:
3338 case MONO_TYPE_VALUETYPE:
3339 if (type == &type->data.klass->byval_arg)
3341 if (type == &type->data.klass->this_arg)
3352 compare_type_literals (MonoImage *image, int class_type, int type_type, MonoError *error)
3354 mono_error_init (error);
3356 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3357 * See mcs/test/gtest-440. and #650936.
3358 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3362 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3365 if (class_type == type_type)
3368 if (type_type == MONO_TYPE_CLASS) {
3369 if (class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT)
3371 //XXX stringify this argument
3372 mono_error_set_bad_image (error, image, "Expected reference type but got type kind %d", class_type);
3376 g_assert (type_type == MONO_TYPE_VALUETYPE);
3377 switch (class_type) {
3378 case MONO_TYPE_BOOLEAN:
3379 case MONO_TYPE_CHAR:
3392 case MONO_TYPE_CLASS:
3395 //XXX stringify this argument
3396 mono_error_set_bad_image (error, image, "Expected value type but got type kind %d", class_type);
3402 verify_var_type_and_container (MonoImage *image, int var_type, MonoGenericContainer *container, MonoError *error)
3404 mono_error_init (error);
3405 if (var_type == MONO_TYPE_MVAR) {
3406 if (!container->is_method) { //MVAR and a method container
3407 mono_error_set_bad_image (error, image, "MVAR parsed in a context without a method container");
3411 if (!(!container->is_method || //VAR and class container
3412 (container->is_method && container->parent))) { //VAR and method container with parent
3413 mono_error_set_bad_image (error, image, "VAR parsed in a context without a class container");
3421 * do_mono_metadata_parse_type:
3422 * @type: MonoType to be filled in with the return value
3424 * @generic_context: generics_context
3425 * @transient: whenever to allocate data from the heap
3426 * @ptr: pointer to the encoded type
3427 * @rptr: pointer where the end of the encoded type is saved
3429 * Internal routine used to "fill" the contents of @type from an
3430 * allocated pointer. This is done this way to avoid doing too
3431 * many mini-allocations (particularly for the MonoFieldType which
3432 * most of the time is just a MonoType, but sometimes might be augmented).
3434 * This routine is used by mono_metadata_parse_type and
3435 * mono_metadata_parse_field_type
3437 * This extracts a Type as specified in Partition II (22.2.12)
3439 * Returns: FALSE if the type could not be loaded
3442 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3443 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
3445 mono_error_init (error);
3447 type->type = (MonoTypeEnum)mono_metadata_decode_value (ptr, &ptr);
3449 switch (type->type){
3450 case MONO_TYPE_VOID:
3451 case MONO_TYPE_BOOLEAN:
3452 case MONO_TYPE_CHAR:
3465 case MONO_TYPE_STRING:
3466 case MONO_TYPE_OBJECT:
3467 case MONO_TYPE_TYPEDBYREF:
3469 case MONO_TYPE_VALUETYPE:
3470 case MONO_TYPE_CLASS: {
3473 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3474 klass = mono_class_get_checked (m, token, error);
3475 type->data.klass = klass;
3479 if (!compare_type_literals (m, klass->byval_arg.type, type->type, error))
3484 case MONO_TYPE_SZARRAY: {
3485 MonoType *etype = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3489 type->data.klass = mono_class_from_mono_type (etype);
3492 mono_metadata_free_type (etype);
3494 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.
3497 case MONO_TYPE_PTR: {
3498 type->data.type = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3499 if (!type->data.type)
3503 case MONO_TYPE_FNPTR: {
3504 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, error);
3505 if (!type->data.method)
3509 case MONO_TYPE_ARRAY: {
3510 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr, error);
3511 if (!type->data.array)
3515 case MONO_TYPE_MVAR:
3516 case MONO_TYPE_VAR: {
3517 if (container && !verify_var_type_and_container (m, type->type, container, error))
3520 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr, error);
3521 if (!type->data.generic_param)
3526 case MONO_TYPE_GENERICINST: {
3527 if (!do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr, error))
3532 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);
3542 * mono_metadata_free_type:
3543 * @type: type to free
3545 * Free the memory allocated for type @type which is allocated on the heap.
3548 mono_metadata_free_type (MonoType *type)
3550 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3553 switch (type->type){
3554 case MONO_TYPE_OBJECT:
3555 case MONO_TYPE_STRING:
3556 if (!type->data.klass)
3559 case MONO_TYPE_CLASS:
3560 case MONO_TYPE_VALUETYPE:
3561 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3565 mono_metadata_free_type (type->data.type);
3567 case MONO_TYPE_FNPTR:
3568 mono_metadata_free_method_signature (type->data.method);
3570 case MONO_TYPE_ARRAY:
3571 mono_metadata_free_array (type->data.array);
3582 hex_dump (const char *buffer, int base, int count)
3584 int show_header = 1;
3592 for (i = 0; i < count; i++){
3595 printf ("\n0x%08x: ", (unsigned char) base + i);
3597 printf ("%02x ", (unsigned char) (buffer [i]));
3604 * @ptr: Points to the beginning of the Section Data (25.3)
3606 static MonoExceptionClause*
3607 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr, MonoError *error)
3609 unsigned char sect_data_flags;
3611 guint32 sect_data_len;
3612 MonoExceptionClause* clauses = NULL;
3614 mono_error_init (error);
3617 /* align on 32-bit boundary */
3618 ptr = dword_align (ptr);
3619 sect_data_flags = *ptr;
3622 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3624 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3627 sect_data_len = ptr [0];
3631 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3632 const unsigned char *p = dword_align (ptr);
3634 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3635 /* we could just store a pointer if we don't need to byteswap */
3636 clauses = (MonoExceptionClause *)g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3637 for (i = 0; i < *num_clauses; ++i) {
3638 MonoExceptionClause *ec = &clauses [i];
3641 ec->flags = read32 (p);
3642 ec->try_offset = read32 (p + 4);
3643 ec->try_len = read32 (p + 8);
3644 ec->handler_offset = read32 (p + 12);
3645 ec->handler_len = read32 (p + 16);
3646 tof_value = read32 (p + 20);
3649 ec->flags = read16 (p);
3650 ec->try_offset = read16 (p + 2);
3651 ec->try_len = *(p + 4);
3652 ec->handler_offset = read16 (p + 5);
3653 ec->handler_len = *(p + 7);
3654 tof_value = read32 (p + 8);
3657 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3658 ec->data.filter_offset = tof_value;
3659 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3660 ec->data.catch_class = NULL;
3662 ec->data.catch_class = mono_class_get_checked (m, tof_value, error);
3663 if (!is_ok (error)) {
3669 ec->data.catch_class = NULL;
3671 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3675 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3676 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3683 * mono_method_get_header_summary:
3684 * @method: The method to get the header.
3685 * @summary: Where to store the header
3688 * Returns: TRUE if the header was properly decoded.
3691 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3697 unsigned char flags, format;
3700 /*Only the GMD has a pointer to the metadata.*/
3701 while (method->is_inflated)
3702 method = ((MonoMethodInflated*)method)->declaring;
3704 summary->code_size = 0;
3705 summary->has_clauses = FALSE;
3707 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3708 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))
3711 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3712 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3715 summary->code_size = header->code_size;
3716 summary->has_clauses = header->num_clauses > 0;
3721 idx = mono_metadata_token_index (method->token);
3722 img = method->klass->image;
3723 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3725 /*We must run the verifier since we'll be decoding it.*/
3726 if (!mono_verifier_verify_method_header (img, rva, NULL))
3729 ptr = mono_image_rva_map (img, rva);
3733 flags = *(const unsigned char *)ptr;
3734 format = flags & METHOD_HEADER_FORMAT_MASK;
3737 case METHOD_HEADER_TINY_FORMAT:
3739 summary->code_size = flags >> 2;
3741 case METHOD_HEADER_FAT_FORMAT:
3742 fat_flags = read16 (ptr);
3744 summary->code_size = read32 (ptr);
3745 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3746 summary->has_clauses = TRUE;
3755 * mono_metadata_parse_mh_full:
3756 * @m: metadata context
3757 * @generic_context: generics context
3758 * @ptr: pointer to the method header.
3760 * Decode the method header at @ptr, including pointer to the IL code,
3761 * info about local variables and optional exception tables.
3762 * This is a Mono runtime internal function.
3764 * LOCKING: Acquires the loader lock.
3766 * Returns: a transient MonoMethodHeader allocated from the heap.
3769 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr, MonoError *error)
3771 MonoMethodHeader *mh = NULL;
3772 unsigned char flags = *(const unsigned char *) ptr;
3773 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3775 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3776 const unsigned char *code;
3777 MonoExceptionClause* clauses = NULL;
3778 int num_clauses = 0;
3779 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3780 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3782 mono_error_init (error);
3785 mono_error_set_bad_image (error, m, "Method header with null pointer");
3790 case METHOD_HEADER_TINY_FORMAT:
3791 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3794 mh->is_transient = TRUE;
3795 local_var_sig_tok = 0;
3796 mh->code_size = flags >> 2;
3797 mh->code = (unsigned char*)ptr;
3799 case METHOD_HEADER_FAT_FORMAT:
3800 fat_flags = read16 (ptr);
3802 max_stack = read16 (ptr);
3804 code_size = read32 (ptr);
3806 local_var_sig_tok = read32 (ptr);
3809 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3814 code = (unsigned char*)ptr;
3816 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3820 * There are more sections
3822 ptr = (char*)code + code_size;
3825 mono_error_set_bad_image (error, m, "Invalid method header format %d", format);
3829 if (local_var_sig_tok) {
3830 int idx = (local_var_sig_tok & 0xffffff)-1;
3831 if (idx >= t->rows || idx < 0) {
3832 mono_error_set_bad_image (error, m, "Invalid method header local vars signature token 0x%8x", idx);
3835 mono_metadata_decode_row (t, idx, cols, 1);
3837 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL)) {
3838 mono_error_set_bad_image (error, m, "Method header locals signature 0x%8x verification failed", idx);
3842 if (fat_flags & METHOD_HEADER_MORE_SECTS) {
3843 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr, error);
3847 if (local_var_sig_tok) {
3848 const char *locals_ptr;
3851 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3852 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3853 if (*locals_ptr != 0x07)
3854 g_warning ("wrong signature for locals blob");
3856 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3857 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3858 mh->num_locals = len;
3859 for (i = 0; i < len; ++i) {
3860 mh->locals [i] = mono_metadata_parse_type_internal (m, container, 0, TRUE, locals_ptr, &locals_ptr, error);
3865 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3868 mh->code_size = code_size;
3869 mh->max_stack = max_stack;
3870 mh->is_transient = TRUE;
3871 mh->init_locals = init_locals;
3873 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3874 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3876 mh->clauses = clausesp;
3877 mh->num_clauses = num_clauses;
3888 * mono_metadata_parse_mh:
3889 * @generic_context: generics context
3890 * @ptr: pointer to the method header.
3892 * Decode the method header at @ptr, including pointer to the IL code,
3893 * info about local variables and optional exception tables.
3895 * Returns: a transient MonoMethodHeader allocated from the heap.
3898 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3901 MonoMethodHeader *header = mono_metadata_parse_mh_full (m, NULL, ptr, &error);
3902 mono_error_cleanup (&error);
3907 * mono_metadata_free_mh:
3908 * @mh: a method header
3910 * Free the memory allocated for the method header.
3913 mono_metadata_free_mh (MonoMethodHeader *mh)
3917 /* If it is not transient it means it's part of a wrapper method,
3918 * or a SRE-generated method, so the lifetime in that case is
3919 * dictated by the method's own lifetime
3921 if (mh->is_transient) {
3922 for (i = 0; i < mh->num_locals; ++i)
3923 mono_metadata_free_type (mh->locals [i]);
3929 * mono_method_header_get_code:
3930 * @header: a MonoMethodHeader pointer
3931 * @code_size: memory location for returning the code size
3932 * @max_stack: memory location for returning the max stack
3934 * Method header accessor to retreive info about the IL code properties:
3935 * a pointer to the IL code itself, the size of the code and the max number
3936 * of stack slots used by the code.
3938 * Returns: pointer to the IL code represented by the method header.
3940 const unsigned char*
3941 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3944 *code_size = header->code_size;
3946 *max_stack = header->max_stack;
3947 return header->code;
3951 * mono_method_header_get_locals:
3952 * @header: a MonoMethodHeader pointer
3953 * @num_locals: memory location for returning the number of local variables
3954 * @init_locals: memory location for returning the init_locals flag
3956 * Method header accessor to retreive info about the local variables:
3957 * an array of local types, the number of locals and whether the locals
3958 * are supposed to be initialized to 0 on method entry
3960 * Returns: pointer to an array of types of the local variables
3963 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3966 *num_locals = header->num_locals;
3968 *init_locals = header->init_locals;
3969 return header->locals;
3973 * mono_method_header_get_num_clauses:
3974 * @header: a MonoMethodHeader pointer
3976 * Method header accessor to retreive the number of exception clauses.
3978 * Returns: the number of exception clauses present
3981 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3983 return header->num_clauses;
3987 * mono_method_header_get_clauses:
3988 * @header: a MonoMethodHeader pointer
3989 * @method: MonoMethod the header belongs to
3990 * @iter: pointer to a iterator
3991 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3993 * Get the info about the exception clauses in the method. Set *iter to NULL to
3994 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3995 * At each iteration, the structure pointed to by clause if filled with the
3996 * exception clause information.
3998 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
4002 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
4004 MonoExceptionClause *sc;
4005 /* later we'll be able to use this interface to parse the clause info on demand,
4006 * without allocating anything.
4008 if (!iter || !header->num_clauses)
4011 *iter = sc = header->clauses;
4015 sc = (MonoExceptionClause *)*iter;
4017 if (sc < header->clauses + header->num_clauses) {
4026 * mono_metadata_parse_field_type:
4027 * @m: metadata context to extract information from
4028 * @ptr: pointer to the field signature
4029 * @rptr: pointer updated to match the end of the decoded stream
4031 * Parses the field signature, and returns the type information for it.
4033 * Returns: The MonoType that was extracted from @ptr.
4036 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
4039 MonoType * type = mono_metadata_parse_type_internal (m, NULL, field_flags, FALSE, ptr, rptr, &error);
4040 mono_error_cleanup (&error);
4045 * mono_metadata_parse_param:
4046 * @m: metadata context to extract information from
4047 * @ptr: pointer to the param signature
4048 * @rptr: pointer updated to match the end of the decoded stream
4050 * Parses the param signature, and returns the type information for it.
4052 * Returns: The MonoType that was extracted from @ptr.
4055 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
4058 MonoType * type = mono_metadata_parse_type_internal (m, NULL, 0, FALSE, ptr, rptr, &error);
4059 mono_error_cleanup (&error);
4064 * mono_metadata_token_from_dor:
4065 * @dor_token: A TypeDefOrRef coded index
4067 * dor_token is a TypeDefOrRef coded index: it contains either
4068 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
4069 * bits contain an index into the table.
4071 * Returns: an expanded token
4074 mono_metadata_token_from_dor (guint32 dor_index)
4078 table = dor_index & 0x03;
4079 idx = dor_index >> 2;
4082 case 0: /* TypeDef */
4083 return MONO_TOKEN_TYPE_DEF | idx;
4084 case 1: /* TypeRef */
4085 return MONO_TOKEN_TYPE_REF | idx;
4086 case 2: /* TypeSpec */
4087 return MONO_TOKEN_TYPE_SPEC | idx;
4089 g_assert_not_reached ();
4096 * We use this to pass context information to the row locator
4099 int idx; /* The index that we are trying to locate */
4100 int col_idx; /* The index in the row where idx may be stored */
4101 MonoTableInfo *t; /* pointer to the table */
4106 * How the row locator works.
4111 * ___|___------> _______
4114 * A column in the rows of table A references an index in table B.
4115 * For example A may be the TYPEDEF table and B the METHODDEF table.
4117 * Given an index in table B we want to get the row in table A
4118 * where the column n references our index in B.
4120 * In the locator_t structure:
4122 * col_idx is the column number
4123 * index is the index in table B
4124 * result will be the index in table A
4127 * Table A Table B column (in table A)
4128 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
4129 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
4130 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
4131 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
4132 * METHODSEM PROPERTY ASSOCIATION (encoded index)
4134 * Note that we still don't support encoded indexes.
4138 typedef_locator (const void *a, const void *b)
4140 locator_t *loc = (locator_t *) a;
4141 const char *bb = (const char *) b;
4142 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
4143 guint32 col, col_next;
4145 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
4151 * Need to check that the next row is valid.
4153 if (typedef_index + 1 < loc->t->rows) {
4154 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
4155 if (loc->idx >= col_next)
4158 if (col == col_next)
4162 loc->result = typedef_index;
4168 table_locator (const void *a, const void *b)
4170 locator_t *loc = (locator_t *) a;
4171 const char *bb = (const char *) b;
4172 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4175 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4177 if (loc->idx == col) {
4178 loc->result = table_index;
4188 declsec_locator (const void *a, const void *b)
4190 locator_t *loc = (locator_t *) a;
4191 const char *bb = (const char *) b;
4192 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4195 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4197 if (loc->idx == col) {
4198 loc->result = table_index;
4210 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
4211 * which contains IDX.
4214 search_ptr_table (MonoImage *image, int table, int idx)
4216 MonoTableInfo *ptrdef = &image->tables [table];
4219 /* Use a linear search to find our index in the table */
4220 for (i = 0; i < ptrdef->rows; i ++)
4221 /* All the Ptr tables have the same structure */
4222 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
4225 if (i < ptrdef->rows)
4232 * mono_metadata_typedef_from_field:
4233 * @meta: metadata context
4234 * @index: FieldDef token
4236 * Returns: the 1-based index into the TypeDef table of the type that
4237 * declared the field described by @index, or 0 if not found.
4240 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
4242 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4248 loc.idx = mono_metadata_token_index (index);
4249 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
4252 if (meta->uncompressed_metadata)
4253 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4255 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4258 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4259 return loc.result + 1;
4263 * mono_metadata_typedef_from_method:
4264 * @meta: metadata context
4265 * @index: MethodDef token
4267 * Returns: the 1-based index into the TypeDef table of the type that
4268 * declared the method described by @index. 0 if not found.
4271 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4273 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4279 loc.idx = mono_metadata_token_index (index);
4280 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4283 if (meta->uncompressed_metadata)
4284 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4286 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4289 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4290 return loc.result + 1;
4294 * mono_metadata_interfaces_from_typedef_full:
4295 * @meta: metadata context
4296 * @index: typedef token
4297 * @interfaces: Out parameter used to store the interface array
4298 * @count: Out parameter used to store the number of interfaces
4299 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4300 * @context: The generic context
4302 * The array of interfaces that the @index typedef token implements is returned in
4303 * @interfaces. The number of elements in the array is returned in @count.
4306 * Returns: TRUE on success, FALSE on failure.
4309 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4311 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4314 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4320 mono_error_init (error);
4325 loc.idx = mono_metadata_token_index (index);
4326 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4329 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4334 * We may end up in the middle of the rows...
4337 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4343 while (pos < tdef->rows) {
4344 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4345 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4350 if (heap_alloc_result)
4351 result = g_new0 (MonoClass*, pos - start);
4353 result = (MonoClass **)mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4356 while (pos < tdef->rows) {
4359 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4360 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4362 iface = mono_class_get_and_inflate_typespec_checked (
4363 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4366 result [pos - start] = iface;
4369 *count = pos - start;
4370 *interfaces = result;
4375 * @meta: metadata context
4376 * @index: typedef token
4377 * @count: Out parameter used to store the number of interfaces
4379 * The array of interfaces that the @index typedef token implements is returned in
4380 * @interfaces. The number of elements in the array is returned in @count. The returned
4381 * array is g_malloc'd and the caller must free it.
4383 * LOCKING: Acquires the loader lock .
4385 * Returns: the interface array on success, NULL on failure.
4389 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4392 MonoClass **interfaces = NULL;
4395 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4396 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4404 * mono_metadata_nested_in_typedef:
4405 * @meta: metadata context
4406 * @index: typedef token
4408 * Returns: the 1-based index into the TypeDef table of the type
4409 * where the type described by @index is nested.
4410 * Returns 0 if @index describes a non-nested type.
4413 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4415 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4421 loc.idx = mono_metadata_token_index (index);
4422 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4425 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4428 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4429 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4433 * mono_metadata_nesting_typedef:
4434 * @meta: metadata context
4435 * @index: typedef token
4437 * Returns: the 1-based index into the TypeDef table of the first type
4438 * that is nested inside the type described by @index. The search starts at
4439 * @start_index. returns 0 if no such type is found.
4442 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4444 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4446 guint32 class_index = mono_metadata_token_index (index);
4451 start = start_index;
4453 while (start <= tdef->rows) {
4454 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4460 if (start > tdef->rows)
4467 * mono_metadata_packing_from_typedef:
4468 * @meta: metadata context
4469 * @index: token representing a type
4471 * Returns: the info stored in the ClassLAyout table for the given typedef token
4472 * into the @packing and @size pointers.
4473 * Returns 0 if the info is not found.
4476 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4478 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4480 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4485 loc.idx = mono_metadata_token_index (index);
4486 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4489 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4492 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4494 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4496 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4498 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4499 return loc.result + 1;
4503 * mono_metadata_custom_attrs_from_index:
4504 * @meta: metadata context
4505 * @index: token representing the parent
4507 * Returns: the 1-based index into the CustomAttribute table of the first
4508 * attribute which belongs to the metadata object described by @index.
4509 * Returns 0 if no such attribute is found.
4512 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4514 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4521 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4524 /* FIXME: Index translation */
4526 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4529 /* Find the first entry by searching backwards */
4530 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4533 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4534 return loc.result + 1;
4538 * mono_metadata_declsec_from_index:
4539 * @meta: metadata context
4540 * @index: token representing the parent
4542 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4543 * attribute which belongs to the metadata object described by @index.
4544 * Returns -1 if no such attribute is found.
4547 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4549 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4556 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4559 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4562 /* Find the first entry by searching backwards */
4563 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4570 * mono_metadata_localscope_from_methoddef:
4571 * @meta: metadata context
4572 * @index: methoddef index
4574 * Returns: the 1-based index into the LocalScope table of the first
4575 * scope which belongs to the method described by @index.
4576 * Returns 0 if no such row is found.
4579 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index)
4581 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_LOCALSCOPE];
4588 loc.col_idx = MONO_LOCALSCOPE_METHOD;
4591 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4594 /* Find the first entry by searching backwards */
4595 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_LOCALSCOPE_METHOD) == index))
4598 return loc.result + 1;
4603 mono_backtrace (int limit)
4608 backtrace (array, limit);
4609 names = backtrace_symbols (array, limit);
4610 for (i =0; i < limit; ++i) {
4611 g_print ("\t%s\n", names [i]);
4617 static int i8_align;
4620 * mono_type_set_alignment:
4622 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4623 * This should only be used in AOT mode since the resulting layout will not match the
4627 mono_type_set_alignment (MonoTypeEnum type, int align)
4629 /* Support only a few types whose alignment is abi dependent */
4635 g_assert_not_reached ();
4642 * @t: the type to return the size of
4644 * Returns: the number of bytes required to hold an instance of this
4648 mono_type_size (MonoType *t, int *align)
4650 MonoTypeEnum simple_type;
4657 *align = MONO_ABI_ALIGNOF (gpointer);
4658 return MONO_ABI_SIZEOF (gpointer);
4661 simple_type = t->type;
4663 switch (simple_type) {
4664 case MONO_TYPE_VOID:
4667 case MONO_TYPE_BOOLEAN:
4668 *align = MONO_ABI_ALIGNOF (gint8);
4672 *align = MONO_ABI_ALIGNOF (gint8);
4674 case MONO_TYPE_CHAR:
4677 *align = MONO_ABI_ALIGNOF (gint16);
4681 *align = MONO_ABI_ALIGNOF (gint32);
4684 *align = MONO_ABI_ALIGNOF (float);
4688 *align = MONO_ABI_ALIGNOF (gint64);
4691 *align = MONO_ABI_ALIGNOF (double);
4695 *align = MONO_ABI_ALIGNOF (gpointer);
4696 return MONO_ABI_SIZEOF (gpointer);
4697 case MONO_TYPE_VALUETYPE: {
4698 if (t->data.klass->enumtype)
4699 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4701 return mono_class_value_size (t->data.klass, (guint32*)align);
4703 case MONO_TYPE_STRING:
4704 case MONO_TYPE_OBJECT:
4705 case MONO_TYPE_CLASS:
4706 case MONO_TYPE_SZARRAY:
4708 case MONO_TYPE_FNPTR:
4709 case MONO_TYPE_ARRAY:
4710 *align = MONO_ABI_ALIGNOF (gpointer);
4711 return MONO_ABI_SIZEOF (gpointer);
4712 case MONO_TYPE_TYPEDBYREF:
4713 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4714 case MONO_TYPE_GENERICINST: {
4715 MonoGenericClass *gclass = t->data.generic_class;
4716 MonoClass *container_class = gclass->container_class;
4718 // g_assert (!gclass->inst->is_open);
4720 if (container_class->valuetype) {
4721 if (container_class->enumtype)
4722 return mono_type_size (mono_class_enum_basetype (container_class), align);
4724 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4726 *align = MONO_ABI_ALIGNOF (gpointer);
4727 return MONO_ABI_SIZEOF (gpointer);
4731 case MONO_TYPE_MVAR:
4732 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4733 *align = MONO_ABI_ALIGNOF (gpointer);
4734 return MONO_ABI_SIZEOF (gpointer);
4736 /* The gparam can only match types given by gshared_constraint */
4737 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4741 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4747 * mono_type_stack_size:
4748 * @t: the type to return the size it uses on the stack
4750 * Returns: the number of bytes required to hold an instance of this
4751 * type on the runtime stack
4754 mono_type_stack_size (MonoType *t, int *align)
4756 return mono_type_stack_size_internal (t, align, FALSE);
4760 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4763 MonoTypeEnum simple_type;
4764 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4765 int stack_slot_size = MONO_ABI_SIZEOF (gpointer);
4766 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4767 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4768 int stack_slot_size = SIZEOF_REGISTER;
4769 int stack_slot_align = SIZEOF_REGISTER;
4772 g_assert (t != NULL);
4778 *align = stack_slot_align;
4779 return stack_slot_size;
4782 simple_type = t->type;
4783 switch (simple_type) {
4784 case MONO_TYPE_BOOLEAN:
4785 case MONO_TYPE_CHAR:
4794 case MONO_TYPE_STRING:
4795 case MONO_TYPE_OBJECT:
4796 case MONO_TYPE_CLASS:
4797 case MONO_TYPE_SZARRAY:
4799 case MONO_TYPE_FNPTR:
4800 case MONO_TYPE_ARRAY:
4801 *align = stack_slot_align;
4802 return stack_slot_size;
4804 case MONO_TYPE_MVAR:
4805 g_assert (allow_open);
4806 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4807 *align = stack_slot_align;
4808 return stack_slot_size;
4810 /* The gparam can only match types given by gshared_constraint */
4811 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4813 case MONO_TYPE_TYPEDBYREF:
4814 *align = stack_slot_align;
4815 return stack_slot_size * 3;
4817 *align = MONO_ABI_ALIGNOF (float);
4818 return sizeof (float);
4821 *align = MONO_ABI_ALIGNOF (gint64);
4822 return sizeof (gint64);
4824 *align = MONO_ABI_ALIGNOF (double);
4825 return sizeof (double);
4826 case MONO_TYPE_VALUETYPE: {
4829 if (t->data.klass->enumtype)
4830 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4832 size = mono_class_value_size (t->data.klass, (guint32*)align);
4834 *align = *align + stack_slot_align - 1;
4835 *align &= ~(stack_slot_align - 1);
4837 size += stack_slot_size - 1;
4838 size &= ~(stack_slot_size - 1);
4843 case MONO_TYPE_GENERICINST: {
4844 MonoGenericClass *gclass = t->data.generic_class;
4845 MonoClass *container_class = gclass->container_class;
4848 g_assert (!gclass->context.class_inst->is_open);
4850 if (container_class->valuetype) {
4851 if (container_class->enumtype)
4852 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4854 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4856 *align = *align + stack_slot_align - 1;
4857 *align &= ~(stack_slot_align - 1);
4859 size += stack_slot_size - 1;
4860 size &= ~(stack_slot_size - 1);
4865 *align = stack_slot_align;
4866 return stack_slot_size;
4870 g_error ("type 0x%02x unknown", t->type);
4876 mono_type_generic_inst_is_valuetype (MonoType *type)
4878 g_assert (type->type == MONO_TYPE_GENERICINST);
4879 return type->data.generic_class->container_class->valuetype;
4883 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4885 return gclass->container_class->valuetype;
4889 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4891 MonoGenericInst *i1 = g1->context.class_inst;
4892 MonoGenericInst *i2 = g2->context.class_inst;
4894 if (g1->is_dynamic != g2->is_dynamic)
4896 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4898 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4900 return g1->is_tb_open == g2->is_tb_open;
4904 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4906 MonoGenericInst *i1 = g1->context.class_inst;
4907 MonoGenericInst *i2 = mono_class_get_generic_container (c2)->context.class_inst;
4909 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4911 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4913 return !g1->is_tb_open;
4917 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4919 /* FIXME: check if this seed is good enough */
4920 guint hash = 0xc01dfee7;
4921 if (context->class_inst)
4922 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4923 if (context->method_inst)
4924 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4929 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4931 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4935 * mono_metadata_str_hash:
4937 * This should be used instead of g_str_hash for computing hash codes visible
4938 * outside this module, since g_str_hash () is not guaranteed to be stable
4939 * (its not the same in eglib for example).
4942 mono_metadata_str_hash (gconstpointer v1)
4944 /* Same as g_str_hash () in glib */
4945 char *p = (char *) v1;
4950 hash = (hash << 5) - hash + *p;
4957 * mono_metadata_type_hash:
4960 * Computes an hash value for @t1 to be used in GHashTable.
4961 * The returned hash is guaranteed to be the same across executions.
4964 mono_metadata_type_hash (MonoType *t1)
4966 guint hash = t1->type;
4968 hash |= t1->byref << 6; /* do not collide with t1->type values */
4970 case MONO_TYPE_VALUETYPE:
4971 case MONO_TYPE_CLASS:
4972 case MONO_TYPE_SZARRAY: {
4973 MonoClass *klass = t1->data.klass;
4975 * Dynamic classes must not be hashed on their type since it can change
4976 * during runtime. For example, if we hash a reference type that is
4977 * later made into a valuetype.
4979 * This is specially problematic with generic instances since they are
4980 * inserted in a bunch of hash tables before been finished.
4982 if (image_is_dynamic (klass->image))
4983 return (t1->byref << 6) | mono_metadata_str_hash (klass->name);
4984 return ((hash << 5) - hash) ^ mono_metadata_str_hash (klass->name);
4987 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4988 case MONO_TYPE_ARRAY:
4989 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4990 case MONO_TYPE_GENERICINST:
4991 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4993 case MONO_TYPE_MVAR:
4994 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
5001 mono_metadata_generic_param_hash (MonoGenericParam *p)
5004 MonoGenericParamInfo *info;
5006 hash = (mono_generic_param_num (p) << 2);
5007 if (p->gshared_constraint)
5008 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
5009 info = mono_generic_param_info (p);
5010 /* Can't hash on the owner klass/method, since those might not be set when this is called */
5012 hash = ((hash << 5) - hash) ^ info->token;
5017 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
5021 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
5023 if (p1->gshared_constraint && p2->gshared_constraint) {
5024 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
5027 if (p1->gshared_constraint != p2->gshared_constraint)
5032 * We have to compare the image as well because if we didn't,
5033 * the generic_inst_cache lookup wouldn't care about the image
5034 * of generic params, so what could happen is that a generic
5035 * inst with params from image A is put into the cache, then
5036 * image B gets that generic inst from the cache, image A is
5037 * unloaded, so the inst is deleted, but image B still retains
5040 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2))
5044 * If `signature_only' is true, we're comparing two (method) signatures.
5045 * In this case, the owner of two type parameters doesn't need to match.
5048 return signature_only;
5052 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
5054 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
5058 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
5062 if (mono_class_is_ginst (c1) && mono_class_is_ginst (c2))
5063 return _mono_metadata_generic_class_equal (mono_class_get_generic_class (c1), mono_class_get_generic_class (c2), signature_only);
5064 if (mono_class_is_ginst (c1) && mono_class_is_gtd (c2))
5065 return _mono_metadata_generic_class_container_equal (mono_class_get_generic_class (c1), c2, signature_only);
5066 if (mono_class_is_gtd (c1) && mono_class_is_ginst (c2))
5067 return _mono_metadata_generic_class_container_equal (mono_class_get_generic_class (c2), c1, signature_only);
5068 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
5069 return mono_metadata_generic_param_equal_internal (
5070 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
5071 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
5072 return mono_metadata_generic_param_equal_internal (
5073 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
5074 if (signature_only &&
5075 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
5076 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
5077 if (signature_only &&
5078 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
5079 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
5084 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
5086 gpointer iter1 = 0, iter2 = 0;
5090 if (s1->call_convention != s2->call_convention)
5092 if (s1->sentinelpos != s2->sentinelpos)
5094 if (s1->hasthis != s2->hasthis)
5096 if (s1->explicit_this != s2->explicit_this)
5098 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
5100 if (s1->param_count != s2->param_count)
5104 MonoType *t1 = mono_signature_get_params (s1, &iter1);
5105 MonoType *t2 = mono_signature_get_params (s2, &iter2);
5107 if (t1 == NULL || t2 == NULL)
5109 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
5115 * mono_metadata_type_equal:
5118 * @signature_only: If true, treat ginsts as equal which are instantiated separately but have equal positional value
5120 * Determine if @t1 and @t2 represent the same type.
5121 * Returns: #TRUE if @t1 and @t2 are equal.
5124 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
5126 if (t1->type != t2->type || t1->byref != t2->byref)
5130 case MONO_TYPE_VOID:
5131 case MONO_TYPE_BOOLEAN:
5132 case MONO_TYPE_CHAR:
5143 case MONO_TYPE_STRING:
5146 case MONO_TYPE_OBJECT:
5147 case MONO_TYPE_TYPEDBYREF:
5149 case MONO_TYPE_VALUETYPE:
5150 case MONO_TYPE_CLASS:
5151 case MONO_TYPE_SZARRAY:
5152 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
5154 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
5155 case MONO_TYPE_ARRAY:
5156 if (t1->data.array->rank != t2->data.array->rank)
5158 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
5159 case MONO_TYPE_GENERICINST:
5160 return _mono_metadata_generic_class_equal (
5161 t1->data.generic_class, t2->data.generic_class, signature_only);
5163 return mono_metadata_generic_param_equal_internal (
5164 t1->data.generic_param, t2->data.generic_param, signature_only);
5165 case MONO_TYPE_MVAR:
5166 return mono_metadata_generic_param_equal_internal (
5167 t1->data.generic_param, t2->data.generic_param, signature_only);
5168 case MONO_TYPE_FNPTR:
5169 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
5171 g_error ("implement type compare for %0x!", t1->type);
5179 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
5181 return do_mono_metadata_type_equal (t1, t2, FALSE);
5185 * mono_metadata_type_equal_full:
5188 * @signature_only: if signature only comparison should be made
5190 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
5191 * behaves the same way as mono_metadata_type_equal.
5192 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
5193 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
5196 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
5198 return do_mono_metadata_type_equal (t1, t2, signature_only);
5202 * mono_metadata_signature_equal:
5203 * @sig1: a signature
5204 * @sig2: another signature
5206 * Determine if @sig1 and @sig2 represent the same signature, with the
5207 * same number of arguments and the same types.
5208 * Returns: #TRUE if @sig1 and @sig2 are equal.
5211 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
5215 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
5218 if (sig1->generic_param_count != sig2->generic_param_count)
5222 * We're just comparing the signatures of two methods here:
5224 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
5225 * U and V are equal here.
5227 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
5230 for (i = 0; i < sig1->param_count; i++) {
5231 MonoType *p1 = sig1->params[i];
5232 MonoType *p2 = sig2->params[i];
5234 /* if (p1->attrs != p2->attrs)
5237 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
5241 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
5247 * mono_metadata_type_dup:
5248 * @image: image to alloc memory from
5249 * @original: type to duplicate
5251 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
5254 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
5257 int sizeof_o = MONO_SIZEOF_TYPE;
5259 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
5261 r = image ? (MonoType *)mono_image_alloc0 (image, sizeof_o) : (MonoType *)g_malloc (sizeof_o);
5263 memcpy (r, o, sizeof_o);
5265 if (o->type == MONO_TYPE_PTR) {
5266 r->data.type = mono_metadata_type_dup (image, o->data.type);
5267 } else if (o->type == MONO_TYPE_ARRAY) {
5268 r->data.array = mono_dup_array_type (image, o->data.array);
5269 } else if (o->type == MONO_TYPE_FNPTR) {
5270 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
5271 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
5277 mono_signature_hash (MonoMethodSignature *sig)
5279 guint i, res = sig->ret->type;
5281 for (i = 0; i < sig->param_count; i++)
5282 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5288 * mono_metadata_encode_value:
5289 * @value: value to encode
5290 * @buf: buffer where to write the compressed representation
5291 * @endbuf: pointer updated to point at the end of the encoded output
5293 * Encodes the value @value in the compressed representation used
5294 * in metadata and stores the result in @buf. @buf needs to be big
5295 * enough to hold the data (4 bytes).
5298 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5304 else if (value < 0x4000) {
5305 p [0] = 0x80 | (value >> 8);
5306 p [1] = value & 0xff;
5309 p [0] = (value >> 24) | 0xc0;
5310 p [1] = (value >> 16) & 0xff;
5311 p [2] = (value >> 8) & 0xff;
5312 p [3] = value & 0xff;
5320 * mono_metadata_field_info:
5321 * @meta: the Image the field is defined in
5322 * @index: the index in the field table representing the field
5323 * @offset: a pointer to an integer where to store the offset that
5324 * may have been specified for the field in a FieldLayout table
5325 * @rva: a pointer to the RVA of the field data in the image that
5326 * may have been defined in a FieldRVA table
5327 * @marshal_spec: a pointer to the marshal spec that may have been
5328 * defined for the field in a FieldMarshal table.
5330 * Gather info for field @index that may have been defined in the FieldLayout,
5331 * FieldRVA and FieldMarshal tables.
5332 * Either of offset, rva and marshal_spec can be NULL if you're not interested
5336 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5337 MonoMarshalSpec **marshal_spec)
5339 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5343 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5344 MonoMarshalSpec **marshal_spec)
5346 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5350 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5351 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5353 MonoTableInfo *tdef;
5356 loc.idx = index + 1;
5357 if (meta->uncompressed_metadata)
5358 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5361 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5363 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5366 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5367 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5369 *offset = (guint32)-1;
5373 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5375 loc.col_idx = MONO_FIELD_RVA_FIELD;
5378 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5380 * LAMESPEC: There is no signature, no nothing, just the raw data.
5382 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5390 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5391 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5398 * mono_metadata_get_constant_index:
5399 * @meta: the Image the field is defined in
5400 * @index: the token that may have a row defined in the constants table
5401 * @hint: possible position for the row
5403 * @token must be a FieldDef, ParamDef or PropertyDef token.
5405 * Returns: the index into the Constants table or 0 if not found.
5408 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5410 MonoTableInfo *tdef;
5412 guint32 index = mono_metadata_token_index (token);
5414 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5415 index <<= MONO_HASCONSTANT_BITS;
5416 switch (mono_metadata_token_table (token)) {
5417 case MONO_TABLE_FIELD:
5418 index |= MONO_HASCONSTANT_FIEDDEF;
5420 case MONO_TABLE_PARAM:
5421 index |= MONO_HASCONSTANT_PARAM;
5423 case MONO_TABLE_PROPERTY:
5424 index |= MONO_HASCONSTANT_PROPERTY;
5427 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5431 loc.col_idx = MONO_CONSTANT_PARENT;
5434 /* FIXME: Index translation */
5436 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5439 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5440 return loc.result + 1;
5446 * mono_metadata_events_from_typedef:
5447 * @meta: metadata context
5448 * @index: 0-based index (in the TypeDef table) describing a type
5450 * Returns: the 0-based index in the Event table for the events in the
5451 * type. The last event that belongs to the type (plus 1) is stored
5452 * in the @end_idx pointer.
5455 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5459 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5467 loc.col_idx = MONO_EVENT_MAP_PARENT;
5468 loc.idx = index + 1;
5470 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5473 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5474 if (loc.result + 1 < tdef->rows) {
5475 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5477 end = meta->tables [MONO_TABLE_EVENT].rows;
5485 * mono_metadata_methods_from_event:
5486 * @meta: metadata context
5487 * @index: 0-based index (in the Event table) describing a event
5489 * Returns: the 0-based index in the MethodDef table for the methods in the
5490 * event. The last method that belongs to the event (plus 1) is stored
5491 * in the @end_idx pointer.
5494 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5498 guint32 cols [MONO_METHOD_SEMA_SIZE];
5499 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5505 if (meta->uncompressed_metadata)
5506 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5509 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5510 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5512 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5517 * We may end up in the middle of the rows...
5520 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5526 while (end < msemt->rows) {
5527 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5528 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5537 * mono_metadata_properties_from_typedef:
5538 * @meta: metadata context
5539 * @index: 0-based index (in the TypeDef table) describing a type
5541 * Returns: the 0-based index in the Property table for the properties in the
5542 * type. The last property that belongs to the type (plus 1) is stored
5543 * in the @end_idx pointer.
5546 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5550 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5558 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5559 loc.idx = index + 1;
5561 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5564 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5565 if (loc.result + 1 < tdef->rows) {
5566 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5568 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5576 * mono_metadata_methods_from_property:
5577 * @meta: metadata context
5578 * @index: 0-based index (in the PropertyDef table) describing a property
5580 * Returns: the 0-based index in the MethodDef table for the methods in the
5581 * property. The last method that belongs to the property (plus 1) is stored
5582 * in the @end_idx pointer.
5585 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5589 guint32 cols [MONO_METHOD_SEMA_SIZE];
5590 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5596 if (meta->uncompressed_metadata)
5597 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5600 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5601 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5603 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5608 * We may end up in the middle of the rows...
5611 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5617 while (end < msemt->rows) {
5618 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5619 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5628 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5631 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5636 /* No index translation seems to be needed */
5639 loc.col_idx = MONO_IMPLMAP_MEMBER;
5640 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5642 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5645 return loc.result + 1;
5649 * @image: context where the image is created
5650 * @type_spec: typespec token
5651 * @deprecated use mono_type_create_from_typespec_checked that has proper error handling
5653 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5657 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5660 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5662 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5667 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5670 guint32 idx = mono_metadata_token_index (type_spec);
5672 guint32 cols [MONO_TYPESPEC_SIZE];
5674 MonoType *type, *type2;
5676 mono_error_init (error);
5678 mono_image_lock (image);
5679 type = (MonoType *)g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5680 mono_image_unlock (image);
5684 t = &image->tables [MONO_TABLE_TYPESPEC];
5686 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5687 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5689 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5690 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5694 mono_metadata_decode_value (ptr, &ptr);
5696 type = mono_metadata_parse_type_checked (image, NULL, 0, TRUE, ptr, &ptr, error);
5700 type2 = mono_metadata_type_dup (image, type);
5701 mono_metadata_free_type (type);
5703 mono_image_lock (image);
5704 type = (MonoType *)g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5705 /* We might leak some data in the image mempool if found */
5707 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5710 mono_image_unlock (image);
5717 mono_image_strndup (MonoImage *image, const char *data, guint len)
5721 return g_strndup (data, len);
5722 res = (char *)mono_image_alloc (image, len + 1);
5723 memcpy (res, data, len);
5729 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5731 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5735 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5736 * PARENT_IMAGE is the image containing the marshal spec.
5739 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5741 MonoMarshalSpec *res;
5743 const char *start = ptr;
5745 /* fixme: this is incomplete, but I cant find more infos in the specs */
5748 res = (MonoMarshalSpec *)mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5750 res = g_new0 (MonoMarshalSpec, 1);
5752 len = mono_metadata_decode_value (ptr, &ptr);
5753 res->native = (MonoMarshalNative)*ptr++;
5755 if (res->native == MONO_NATIVE_LPARRAY) {
5756 res->data.array_data.param_num = -1;
5757 res->data.array_data.num_elem = -1;
5758 res->data.array_data.elem_mult = -1;
5760 if (ptr - start <= len)
5761 res->data.array_data.elem_type = (MonoMarshalNative)*ptr++;
5762 if (ptr - start <= len)
5763 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5764 if (ptr - start <= len)
5765 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5766 if (ptr - start <= len) {
5768 * LAMESPEC: Older spec versions say this parameter comes before
5769 * num_elem. Never spec versions don't talk about elem_mult at
5770 * all, but csc still emits it, and it is used to distinguish
5771 * between param_num being 0, and param_num being omitted.
5772 * So if (param_num == 0) && (num_elem > 0), then
5773 * elem_mult == 0 -> the array size is num_elem
5774 * elem_mult == 1 -> the array size is @param_num + num_elem
5776 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5780 if (res->native == MONO_NATIVE_BYVALTSTR) {
5781 if (ptr - start <= len)
5782 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5785 if (res->native == MONO_NATIVE_BYVALARRAY) {
5786 if (ptr - start <= len)
5787 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5790 if (res->native == MONO_NATIVE_CUSTOM) {
5791 /* skip unused type guid */
5792 len = mono_metadata_decode_value (ptr, &ptr);
5794 /* skip unused native type name */
5795 len = mono_metadata_decode_value (ptr, &ptr);
5797 /* read custom marshaler type name */
5798 len = mono_metadata_decode_value (ptr, &ptr);
5799 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5801 /* read cookie string */
5802 len = mono_metadata_decode_value (ptr, &ptr);
5803 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5804 res->data.custom_data.image = parent_image;
5807 if (res->native == MONO_NATIVE_SAFEARRAY) {
5808 res->data.safearray_data.elem_type = (MonoMarshalVariant)0;
5809 res->data.safearray_data.num_elem = 0;
5810 if (ptr - start <= len)
5811 res->data.safearray_data.elem_type = (MonoMarshalVariant)*ptr++;
5812 if (ptr - start <= len)
5813 res->data.safearray_data.num_elem = *ptr++;
5819 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5821 if (spec->native == MONO_NATIVE_CUSTOM) {
5822 g_free (spec->data.custom_data.custom_name);
5823 g_free (spec->data.custom_data.cookie);
5829 * mono_type_to_unmanaged:
5831 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5832 * describing the underlying native reprensetation of the type.
5834 * In addition the value pointed by
5835 * "conv" will contain the kind of marshalling required for this
5836 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5839 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5840 gboolean unicode, MonoMarshalConv *conv)
5842 MonoMarshalConv dummy_conv;
5848 *conv = MONO_MARSHAL_CONV_NONE;
5851 return MONO_NATIVE_UINT;
5855 case MONO_TYPE_BOOLEAN:
5857 switch (mspec->native) {
5858 case MONO_NATIVE_VARIANTBOOL:
5859 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5860 return MONO_NATIVE_VARIANTBOOL;
5861 case MONO_NATIVE_BOOLEAN:
5862 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5863 return MONO_NATIVE_BOOLEAN;
5864 case MONO_NATIVE_I1:
5865 case MONO_NATIVE_U1:
5866 return mspec->native;
5868 g_error ("cant marshal bool to native type %02x", mspec->native);
5871 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5872 return MONO_NATIVE_BOOLEAN;
5873 case MONO_TYPE_CHAR:
5875 switch (mspec->native) {
5876 case MONO_NATIVE_U2:
5877 case MONO_NATIVE_U1:
5878 return mspec->native;
5880 g_error ("cant marshal char to native type %02x", mspec->native);
5883 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5884 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5885 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5886 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5887 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5888 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5889 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5890 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5891 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5892 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5893 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5894 case MONO_TYPE_STRING:
5896 switch (mspec->native) {
5897 case MONO_NATIVE_BSTR:
5898 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5899 return MONO_NATIVE_BSTR;
5900 case MONO_NATIVE_LPSTR:
5901 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5902 return MONO_NATIVE_LPSTR;
5903 case MONO_NATIVE_LPWSTR:
5904 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5905 return MONO_NATIVE_LPWSTR;
5906 case MONO_NATIVE_LPTSTR:
5907 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5908 return MONO_NATIVE_LPTSTR;
5909 case MONO_NATIVE_ANSIBSTR:
5910 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5911 return MONO_NATIVE_ANSIBSTR;
5912 case MONO_NATIVE_TBSTR:
5913 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5914 return MONO_NATIVE_TBSTR;
5915 case MONO_NATIVE_UTF8STR:
5916 *conv = MONO_MARSHAL_CONV_STR_UTF8STR;
5917 return MONO_NATIVE_UTF8STR;
5918 case MONO_NATIVE_BYVALTSTR:
5920 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5922 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5923 return MONO_NATIVE_BYVALTSTR;
5925 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);
5929 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5930 return MONO_NATIVE_LPWSTR;
5933 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5934 return MONO_NATIVE_LPSTR;
5936 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5937 case MONO_TYPE_VALUETYPE: /*FIXME*/
5938 if (type->data.klass->enumtype) {
5939 t = mono_class_enum_basetype (type->data.klass)->type;
5942 if (type->data.klass == mono_defaults.handleref_class){
5943 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5944 return MONO_NATIVE_INT;
5946 return MONO_NATIVE_STRUCT;
5947 case MONO_TYPE_SZARRAY:
5948 case MONO_TYPE_ARRAY:
5950 switch (mspec->native) {
5951 case MONO_NATIVE_BYVALARRAY:
5952 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5953 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5955 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5956 return MONO_NATIVE_BYVALARRAY;
5957 case MONO_NATIVE_SAFEARRAY:
5958 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5959 return MONO_NATIVE_SAFEARRAY;
5960 case MONO_NATIVE_LPARRAY:
5961 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5962 return MONO_NATIVE_LPARRAY;
5964 g_error ("cant marshal array as native type %02x", mspec->native);
5968 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5969 return MONO_NATIVE_LPARRAY;
5970 case MONO_TYPE_I: return MONO_NATIVE_INT;
5971 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5972 case MONO_TYPE_CLASS:
5973 case MONO_TYPE_OBJECT: {
5974 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5976 switch (mspec->native) {
5977 case MONO_NATIVE_STRUCT:
5978 return MONO_NATIVE_STRUCT;
5979 case MONO_NATIVE_CUSTOM:
5980 return MONO_NATIVE_CUSTOM;
5981 case MONO_NATIVE_INTERFACE:
5982 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5983 return MONO_NATIVE_INTERFACE;
5984 case MONO_NATIVE_IDISPATCH:
5985 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5986 return MONO_NATIVE_IDISPATCH;
5987 case MONO_NATIVE_IUNKNOWN:
5988 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5989 return MONO_NATIVE_IUNKNOWN;
5990 case MONO_NATIVE_FUNC:
5991 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5992 type->data.klass == mono_defaults.delegate_class ||
5993 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5994 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5995 return MONO_NATIVE_FUNC;
5999 g_error ("cant marshal object as native type %02x", mspec->native);
6002 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
6003 type->data.klass == mono_defaults.delegate_class ||
6004 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
6005 *conv = MONO_MARSHAL_CONV_DEL_FTN;
6006 return MONO_NATIVE_FUNC;
6008 if (mono_class_try_get_safehandle_class () && type->data.klass == mono_class_try_get_safehandle_class ()){
6009 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
6010 return MONO_NATIVE_INT;
6012 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
6013 return MONO_NATIVE_STRUCT;
6015 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
6016 case MONO_TYPE_GENERICINST:
6017 type = &type->data.generic_class->container_class->byval_arg;
6020 case MONO_TYPE_TYPEDBYREF:
6022 g_error ("type 0x%02x not handled in marshal", t);
6024 return MONO_NATIVE_MAX;
6028 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
6031 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
6037 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
6038 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
6040 /* FIXME: Index translation */
6042 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6045 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
6049 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
6051 MonoMethod *result = NULL;
6052 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
6054 mono_error_init (error);
6056 switch (tok & MONO_METHODDEFORREF_MASK) {
6057 case MONO_METHODDEFORREF_METHODDEF:
6058 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
6060 case MONO_METHODDEFORREF_METHODREF:
6061 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
6064 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
6071 * mono_class_get_overrides_full:
6073 * Return the method overrides belonging to class @type_token in @overrides, and
6074 * the number of overrides in @num_overrides.
6076 * Returns: TRUE on success, FALSE on failure.
6079 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
6080 MonoGenericContext *generic_context)
6084 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
6087 guint32 cols [MONO_METHODIMPL_SIZE];
6088 MonoMethod **result;
6099 loc.col_idx = MONO_METHODIMPL_CLASS;
6100 loc.idx = mono_metadata_token_index (type_token);
6102 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6108 * We may end up in the middle of the rows...
6111 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
6116 while (end < tdef->rows) {
6117 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
6123 result = g_new (MonoMethod*, num * 2);
6124 for (i = 0; i < num; ++i) {
6127 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
6128 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6133 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
6134 method = method_from_method_def_or_ref (
6135 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
6136 if (method == NULL) {
6137 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6140 result [i * 2] = method;
6141 method = method_from_method_def_or_ref (
6142 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
6143 if (method == NULL) {
6144 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6147 result [i * 2 + 1] = method;
6150 *overrides = result;
6152 *num_overrides = num;
6157 * mono_guid_to_string:
6159 * Converts a 16 byte Microsoft GUID to the standard string representation.
6162 mono_guid_to_string (const guint8 *guid)
6164 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
6165 guid[3], guid[2], guid[1], guid[0],
6169 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6173 * mono_guid_to_string_minimal:
6175 * Converts a 16 byte Microsoft GUID to lower case no '-' representation..
6178 mono_guid_to_string_minimal (const guint8 *guid)
6180 return g_strdup_printf ("%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
6181 guid[3], guid[2], guid[1], guid[0],
6185 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6188 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
6190 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
6191 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
6192 guint32 i, token, found;
6193 MonoClass *klass, **res;
6194 GSList *cons = NULL, *tmp;
6195 MonoGenericContext *context = &container->context;
6197 mono_error_init (error);
6199 *constraints = NULL;
6201 for (i = 0; i < tdef->rows; ++i) {
6202 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
6203 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
6204 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
6205 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
6207 g_slist_free (cons);
6210 cons = g_slist_append (cons, klass);
6213 /* contiguous list finished */
6220 res = (MonoClass **)mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
6221 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
6222 res [i] = (MonoClass *)tmp->data;
6224 g_slist_free (cons);
6230 * mono_metadata_get_generic_param_row:
6233 * @token: TypeOrMethodDef token, owner for GenericParam
6234 * @owner: coded token, set on return
6236 * Returns: 1-based row-id in the GenericParam table whose
6237 * owner is @token. 0 if not found.
6240 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
6242 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6249 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
6250 *owner = MONO_TYPEORMETHOD_TYPE;
6251 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6252 *owner = MONO_TYPEORMETHOD_METHOD;
6254 g_error ("wrong token %x to get_generic_param_row", token);
6257 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
6260 loc.col_idx = MONO_GENERICPARAM_OWNER;
6263 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6266 /* Find the first entry by searching backwards */
6267 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
6270 return loc.result + 1;
6274 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
6277 return mono_metadata_get_generic_param_row (image, token, &owner);
6281 * Memory is allocated from IMAGE's mempool.
6284 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
6285 MonoGenericContainer *container, MonoError *error)
6288 guint32 start_row, i, owner;
6289 mono_error_init (error);
6291 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6293 for (i = 0; i < container->type_argc; i++) {
6294 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6302 * mono_metadata_load_generic_params:
6304 * Load the type parameters from the type or method definition @token.
6306 * Use this method after parsing a type or method definition to figure out whether it's a generic
6307 * type / method. When parsing a method definition, @parent_container points to the generic container
6308 * of the current class, if any.
6310 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6311 * creating the type.
6313 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6315 * LOCKING: Acquires the loader lock
6318 MonoGenericContainer *
6319 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6321 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6322 guint32 cols [MONO_GENERICPARAM_SIZE];
6323 guint32 i, owner = 0, n;
6324 MonoGenericContainer *container;
6325 MonoGenericParamFull *params;
6326 MonoGenericContext *context;
6328 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6330 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6333 container = (MonoGenericContainer *)mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6334 container->owner.image = image; // Temporarily mark as anonymous, but this will be overriden by caller
6335 container->is_anonymous = TRUE;
6338 params = (MonoGenericParamFull *)g_realloc (params, sizeof (MonoGenericParamFull) * n);
6339 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6340 params [n - 1].param.owner = container;
6341 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6342 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6343 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6344 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6345 if (params [n - 1].param.num != n - 1)
6346 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6347 if (++i > tdef->rows)
6349 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6350 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6352 container->type_argc = n;
6353 container->type_params = (MonoGenericParamFull *)mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6354 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6356 container->parent = parent_container;
6358 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6359 container->is_method = 1;
6361 g_assert (container->parent == NULL || container->is_method);
6363 context = &container->context;
6364 if (container->is_method) {
6365 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6366 context->method_inst = mono_get_shared_generic_inst (container);
6368 context->class_inst = mono_get_shared_generic_inst (container);
6375 mono_get_shared_generic_inst (MonoGenericContainer *container)
6377 MonoType **type_argv;
6379 MonoGenericInst *nginst;
6382 type_argv = g_new0 (MonoType *, container->type_argc);
6383 helper = g_new0 (MonoType, container->type_argc);
6385 for (i = 0; i < container->type_argc; i++) {
6386 MonoType *t = &helper [i];
6388 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6389 t->data.generic_param = mono_generic_container_get_param (container, i);
6394 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6403 * mono_type_is_byref:
6404 * @type: the MonoType operated on
6406 * Returns: #TRUE if @type represents a type passed by reference,
6410 mono_type_is_byref (MonoType *type)
6416 * mono_type_get_type:
6417 * @type: the MonoType operated on
6419 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
6420 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
6423 mono_type_get_type (MonoType *type)
6429 * mono_type_get_signature:
6430 * @type: the MonoType operated on
6432 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
6434 * Returns: the MonoMethodSignature pointer that describes the signature
6435 * of the function pointer @type represents.
6437 MonoMethodSignature*
6438 mono_type_get_signature (MonoType *type)
6440 g_assert (type->type == MONO_TYPE_FNPTR);
6441 return type->data.method;
6445 * mono_type_get_class:
6446 * @type: the MonoType operated on
6448 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
6449 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
6452 * Returns: the MonoClass pointer that describes the class that @type represents.
6455 mono_type_get_class (MonoType *type)
6457 /* FIXME: review the runtime users before adding the assert here */
6458 return type->data.klass;
6462 * mono_type_get_array_type:
6463 * @type: the MonoType operated on
6465 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6467 * Returns: a MonoArrayType struct describing the array type that @type
6468 * represents. The info includes details such as rank, array element type
6469 * and the sizes and bounds of multidimensional arrays.
6472 mono_type_get_array_type (MonoType *type)
6474 return type->data.array;
6478 * mono_type_get_ptr_type:
6479 * @type: the MonoType operated on
6481 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6484 * Returns: the MonoType pointer that describes the type that @type
6485 * represents a pointer to.
6488 mono_type_get_ptr_type (MonoType *type)
6490 g_assert (type->type == MONO_TYPE_PTR);
6491 return type->data.type;
6495 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6497 /* FIXME: implement */
6502 * mono_type_is_struct:
6503 * @type: the MonoType operated on
6505 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6506 * or a basic type like System.Int32. #FALSE otherwise.
6509 mono_type_is_struct (MonoType *type)
6511 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6512 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6513 ((type->type == MONO_TYPE_GENERICINST) &&
6514 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6515 !type->data.generic_class->container_class->enumtype)));
6519 * mono_type_is_void:
6520 * @type: the MonoType operated on
6522 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6525 mono_type_is_void (MonoType *type)
6527 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6531 * mono_type_is_pointer:
6532 * @type: the MonoType operated on
6534 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6537 mono_type_is_pointer (MonoType *type)
6539 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6540 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6541 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6542 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6543 (type->type == MONO_TYPE_FNPTR)));
6547 * mono_type_is_reference:
6548 * @type: the MonoType operated on
6550 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6553 mono_type_is_reference (MonoType *type)
6555 return (type && (((type->type == MONO_TYPE_STRING) ||
6556 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6557 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6558 ((type->type == MONO_TYPE_GENERICINST) &&
6559 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6563 mono_type_is_generic_parameter (MonoType *type)
6565 return !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR);
6569 * mono_signature_get_return_type:
6570 * @sig: the method signature inspected
6572 * Returns: the return type of the method signature @sig
6575 mono_signature_get_return_type (MonoMethodSignature *sig)
6581 * mono_signature_get_params:
6582 * @sig: the method signature inspected
6583 * #iter: pointer to an iterator
6585 * Iterates over the parameters for the method signature @sig.
6586 * A void* pointer must be initualized to #NULL to start the iteration
6587 * and it's address is passed to this function repeteadly until it returns
6590 * Returns: the next parameter type of the method signature @sig,
6591 * #NULL when finished.
6594 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6600 /* start from the first */
6601 if (sig->param_count) {
6602 *iter = &sig->params [0];
6603 return sig->params [0];
6609 type = (MonoType **)*iter;
6611 if (type < &sig->params [sig->param_count]) {
6619 * mono_signature_get_param_count:
6620 * @sig: the method signature inspected
6622 * Returns: the number of parameters in the method signature @sig.
6625 mono_signature_get_param_count (MonoMethodSignature *sig)
6627 return sig->param_count;
6631 * mono_signature_get_call_conv:
6632 * @sig: the method signature inspected
6634 * Returns: the call convention of the method signature @sig.
6637 mono_signature_get_call_conv (MonoMethodSignature *sig)
6639 return sig->call_convention;
6643 * mono_signature_vararg_start:
6644 * @sig: the method signature inspected
6646 * Returns: the number of the first vararg parameter in the
6647 * method signature @sig. -1 if this is not a vararg signature.
6650 mono_signature_vararg_start (MonoMethodSignature *sig)
6652 return sig->sentinelpos;
6656 * mono_signature_is_instance:
6657 * @sig: the method signature inspected
6659 * Returns: #TRUE if this the method signature @sig has an implicit
6660 * first instance argument. #FALSE otherwise.
6663 mono_signature_is_instance (MonoMethodSignature *sig)
6665 return sig->hasthis;
6669 * mono_signature_param_is_out
6670 * @sig: the method signature inspected
6671 * @param_num: the 0-based index of the inspected parameter
6673 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6677 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6679 g_assert (param_num >= 0 && param_num < sig->param_count);
6680 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6684 * mono_signature_explicit_this:
6685 * @sig: the method signature inspected
6687 * Returns: #TRUE if this the method signature @sig has an explicit
6688 * instance argument. #FALSE otherwise.
6691 mono_signature_explicit_this (MonoMethodSignature *sig)
6693 return sig->explicit_this;
6696 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6698 mono_aligned_addr_hash (gconstpointer ptr)
6700 return GPOINTER_TO_UINT (ptr) >> 3;
6704 * If @field belongs to an inflated generic class, return the corresponding field of the
6705 * generic type definition class.
6708 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6713 if (!mono_class_is_ginst (field->parent))
6716 gtd = mono_class_get_generic_class (field->parent)->container_class;
6717 offset = field - field->parent->fields;
6718 return gtd->fields + offset;
6722 * If @event belongs to an inflated generic class, return the corresponding event of the
6723 * generic type definition class.
6726 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6731 if (!mono_class_is_ginst (event->parent))
6734 gtd = mono_class_get_generic_class (event->parent)->container_class;
6735 offset = event - mono_class_get_event_info (event->parent)->events;
6736 return mono_class_get_event_info (gtd)->events + offset;
6740 * If @property belongs to an inflated generic class, return the corresponding property of the
6741 * generic type definition class.
6744 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6746 MonoClassPropertyInfo *info;
6750 if (!mono_class_is_ginst (property->parent))
6753 info = mono_class_get_property_info (property->parent);
6754 gtd = mono_class_get_generic_class (property->parent)->container_class;
6755 offset = property - info->properties;
6756 return mono_class_get_property_info (gtd)->properties + offset;
6760 mono_method_get_wrapper_cache (MonoMethod *method)
6762 if (method->is_inflated) {
6763 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
6764 return &imethod->owner->wrapper_caches;
6766 return &method->klass->image->wrapper_caches;
6770 // 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.
6773 * mono_find_image_set_owner:
6775 * Find the imageset, if any, which a given pointer is located in the memory of.
6778 mono_find_image_set_owner (void *ptr)
6780 MonoImageSet *owner = NULL;
6787 for (i = 0; !owner && i < image_sets->len; ++i) {
6788 MonoImageSet *set = (MonoImageSet *)g_ptr_array_index (image_sets, i);
6789 if (mono_mempool_contains_addr (set->mempool, ptr))
6794 image_sets_unlock ();