3 * Routines for accessing the metadata
6 * Miguel de Icaza (miguel@ximian.com)
7 * Paolo Molaro (lupus@ximian.com)
9 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
10 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
20 #include "tabledefs.h"
21 #include "mono-endian.h"
23 #include "tokentype.h"
24 #include "class-internals.h"
25 #include "metadata-internals.h"
26 #include "verify-internals.h"
29 #include "debug-helpers.h"
30 #include "abi-details.h"
31 #include <mono/utils/mono-error-internals.h>
32 #include <mono/utils/bsearch.h>
33 #include <mono/utils/atomic.h>
34 #include <mono/utils/mono-counters.h>
36 static int img_set_cache_hit, img_set_cache_miss, img_set_count;
39 /* Auxiliary structure used for caching inflated signatures */
41 MonoMethodSignature *sig;
42 MonoGenericContext context;
43 } MonoInflatedMethodSignature;
45 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container, gboolean transient,
46 const char *ptr, const char **rptr, MonoError *error);
48 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
49 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
50 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
51 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
52 gboolean signature_only);
53 static void free_generic_inst (MonoGenericInst *ginst);
54 static void free_generic_class (MonoGenericClass *ginst);
55 static void free_inflated_method (MonoMethodInflated *method);
56 static void free_inflated_signature (MonoInflatedMethodSignature *sig);
57 static void mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva, MonoMarshalSpec **marshal_spec, gboolean alloc_from_image);
60 * This enumeration is used to describe the data types in the metadata
71 /* Index into Blob heap */
74 /* Index into String heap */
80 /* Pointer into a table */
83 /* HasConstant:Parent pointer (Param, Field or Property) */
86 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
89 /* CustomAttributeType encoded index */
92 /* HasDeclSecurity index: TypeDef Method or Assembly */
95 /* Implementation coded index: File, Export AssemblyRef */
98 /* HasFieldMarshal coded index: Field or Param table */
101 /* MemberForwardedIndex: Field or Method */
104 /* TypeDefOrRef coded index: typedef, typeref, typespec */
107 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
110 /* MethodDefOrRef coded index: Method or Member Ref table */
113 /* HasSemantic coded index: Event or Property */
116 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
119 /* CustomDebugInformation parent encoded index */
120 MONO_MT_HASCUSTDEBUG_IDX
123 const static unsigned char TableSchemas [] = {
124 #define ASSEMBLY_SCHEMA_OFFSET 0
125 MONO_MT_UINT32, /* "HashId" }, */
126 MONO_MT_UINT16, /* "Major" }, */
127 MONO_MT_UINT16, /* "Minor" }, */
128 MONO_MT_UINT16, /* "BuildNumber" }, */
129 MONO_MT_UINT16, /* "RevisionNumber" }, */
130 MONO_MT_UINT32, /* "Flags" }, */
131 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
132 MONO_MT_STRING_IDX, /* "Name" }, */
133 MONO_MT_STRING_IDX, /* "Culture" }, */
136 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
137 MONO_MT_UINT32, /* "OSPlatformID" }, */
138 MONO_MT_UINT32, /* "OSMajor" }, */
139 MONO_MT_UINT32, /* "OSMinor" }, */
142 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
143 MONO_MT_UINT32, /* "Processor" }, */
146 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
147 MONO_MT_UINT16, /* "Major" }, */
148 MONO_MT_UINT16, /* "Minor" }, */
149 MONO_MT_UINT16, /* "Build" }, */
150 MONO_MT_UINT16, /* "Revision" }, */
151 MONO_MT_UINT32, /* "Flags" }, */
152 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
153 MONO_MT_STRING_IDX, /* "Name" }, */
154 MONO_MT_STRING_IDX, /* "Culture" }, */
155 MONO_MT_BLOB_IDX, /* "HashValue" }, */
158 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
159 MONO_MT_UINT32, /* "OSPlatformID" }, */
160 MONO_MT_UINT32, /* "OSMajorVersion" }, */
161 MONO_MT_UINT32, /* "OSMinorVersion" }, */
162 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
165 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
166 MONO_MT_UINT32, /* "Processor" }, */
167 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
170 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
171 MONO_MT_UINT16, /* "PackingSize" }, */
172 MONO_MT_UINT32, /* "ClassSize" }, */
173 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
176 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
177 MONO_MT_UINT8, /* "Type" }, */
178 MONO_MT_UINT8, /* "PaddingZero" }, */
179 MONO_MT_CONST_IDX, /* "Parent" }, */
180 MONO_MT_BLOB_IDX, /* "Value" }, */
183 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
184 MONO_MT_HASCAT_IDX, /* "Parent" }, */
185 MONO_MT_CAT_IDX, /* "Type" }, */
186 MONO_MT_BLOB_IDX, /* "Value" }, */
189 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
190 MONO_MT_UINT16, /* "Action" }, */
191 MONO_MT_HASDEC_IDX, /* "Parent" }, */
192 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
195 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
196 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
197 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
200 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
201 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
202 MONO_MT_STRING_IDX, /* "Name" }, */
203 MONO_MT_TDOR_IDX, /* "EventType" }, TypeDef or TypeRef or TypeSpec */
206 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
207 MONO_MT_TABLE_IDX, /* "Event" }, */
210 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
211 MONO_MT_UINT32, /* "Flags" }, */
212 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
213 MONO_MT_STRING_IDX, /* "TypeName" }, */
214 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
215 MONO_MT_IMPL_IDX, /* "Implementation" }, */
218 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
219 MONO_MT_UINT16, /* "Flags" }, */
220 MONO_MT_STRING_IDX, /* "Name" }, */
221 MONO_MT_BLOB_IDX, /* "Signature" }, */
224 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
225 MONO_MT_UINT32, /* "Offset" }, */
226 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
229 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
230 MONO_MT_HFM_IDX, /* "Parent" }, */
231 MONO_MT_BLOB_IDX, /* "NativeType" }, */
234 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
235 MONO_MT_UINT32, /* "RVA" }, */
236 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
239 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
240 MONO_MT_TABLE_IDX, /* "Field" }, */
243 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
244 MONO_MT_UINT32, /* "Flags" }, */
245 MONO_MT_STRING_IDX, /* "Name" }, */
246 MONO_MT_BLOB_IDX, /* "Value" }, */
249 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
250 MONO_MT_UINT16, /* "MappingFlag" }, */
251 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
252 MONO_MT_STRING_IDX, /* "ImportName" }, */
253 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
256 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
257 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
258 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
261 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
262 MONO_MT_UINT32, /* "Offset" }, */
263 MONO_MT_UINT32, /* "Flags" }, */
264 MONO_MT_STRING_IDX, /* "Name" }, */
265 MONO_MT_IMPL_IDX, /* "Implementation" }, */
268 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
269 MONO_MT_MRP_IDX, /* "Class" }, */
270 MONO_MT_STRING_IDX, /* "Name" }, */
271 MONO_MT_BLOB_IDX, /* "Signature" }, */
274 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
275 MONO_MT_UINT32, /* "RVA" }, */
276 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
277 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
278 MONO_MT_STRING_IDX, /* "Name" }, */
279 MONO_MT_BLOB_IDX, /* "Signature" }, */
280 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
283 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
284 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
285 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
286 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
289 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
290 MONO_MT_UINT16, /* "MethodSemantic" }, */
291 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
292 MONO_MT_HS_IDX, /* "Association" }, */
295 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
296 MONO_MT_TABLE_IDX, /* "Method" }, */
299 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
300 MONO_MT_UINT16, /* "Generation" }, */
301 MONO_MT_STRING_IDX, /* "Name" }, */
302 MONO_MT_GUID_IDX, /* "MVID" }, */
303 MONO_MT_GUID_IDX, /* "EncID" }, */
304 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
307 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
308 MONO_MT_STRING_IDX, /* "Name" }, */
311 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
312 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
313 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
316 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
317 MONO_MT_UINT16, /* "Flags" }, */
318 MONO_MT_UINT16, /* "Sequence" }, */
319 MONO_MT_STRING_IDX, /* "Name" }, */
322 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
323 MONO_MT_TABLE_IDX, /* "Param" }, */
326 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
327 MONO_MT_UINT16, /* "Flags" }, */
328 MONO_MT_STRING_IDX, /* "Name" }, */
329 MONO_MT_BLOB_IDX, /* "Type" }, */
332 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
333 MONO_MT_TABLE_IDX, /* "Property" }, */
336 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
337 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
338 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
341 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
342 MONO_MT_BLOB_IDX, /* "Signature" }, */
345 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
346 MONO_MT_UINT32, /* "Flags" }, */
347 MONO_MT_STRING_IDX, /* "Name" }, */
348 MONO_MT_STRING_IDX, /* "Namespace" }, */
349 MONO_MT_TDOR_IDX, /* "Extends" }, */
350 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
351 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
354 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
355 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
356 MONO_MT_STRING_IDX, /* "Name" }, */
357 MONO_MT_STRING_IDX, /* "Namespace" }, */
360 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
361 MONO_MT_BLOB_IDX, /* "Signature" }, */
364 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
365 MONO_MT_UINT16, /* "Number" }, */
366 MONO_MT_UINT16, /* "Flags" }, */
367 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
368 MONO_MT_STRING_IDX, /* "Name" }, */
371 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
372 MONO_MT_MDOR_IDX, /* "Method" }, */
373 MONO_MT_BLOB_IDX, /* "Signature" }, */
376 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
377 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
378 MONO_MT_TDOR_IDX, /* "Constraint" }, */
381 #define DOCUMENT_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
382 MONO_MT_BLOB_IDX, /* Name */
383 MONO_MT_GUID_IDX, /* HashAlgorithm */
384 MONO_MT_BLOB_IDX, /* Hash */
385 MONO_MT_GUID_IDX, /* Language */
388 #define METHODBODY_SCHEMA_OFFSET DOCUMENT_SCHEMA_OFFSET + 5
389 MONO_MT_TABLE_IDX, /* Document */
390 MONO_MT_BLOB_IDX, /* SequencePoints */
393 #define LOCALSCOPE_SCHEMA_OFFSET METHODBODY_SCHEMA_OFFSET + 3
394 MONO_MT_TABLE_IDX, /* Method */
395 MONO_MT_TABLE_IDX, /* ImportScope */
396 MONO_MT_TABLE_IDX, /* VariableList */
397 MONO_MT_TABLE_IDX, /* ConstantList */
398 MONO_MT_UINT32, /* StartOffset */
399 MONO_MT_UINT32, /* Length */
402 #define LOCALVARIABLE_SCHEMA_OFFSET LOCALSCOPE_SCHEMA_OFFSET + 7
403 MONO_MT_UINT16, /* Attributes */
404 MONO_MT_UINT16, /* Index */
405 MONO_MT_STRING_IDX, /* Name */
408 #define LOCALCONSTANT_SCHEMA_OFFSET LOCALVARIABLE_SCHEMA_OFFSET + 4
409 MONO_MT_STRING_IDX, /* Name (String heap index) */
410 MONO_MT_BLOB_IDX, /* Signature (Blob heap index, LocalConstantSig blob) */
413 #define IMPORTSCOPE_SCHEMA_OFFSET LOCALCONSTANT_SCHEMA_OFFSET + 3
414 MONO_MT_TABLE_IDX, /* Parent (ImportScope row id or nil) */
415 MONO_MT_BLOB_IDX, /* Imports (Blob index, encoding: Imports blob) */
418 #define ASYNCMETHOD_SCHEMA_OFFSET IMPORTSCOPE_SCHEMA_OFFSET + 3
419 MONO_MT_TABLE_IDX, /* MoveNextMethod (MethodDef row id) */
420 MONO_MT_TABLE_IDX, /* KickoffMethod (MethodDef row id) */
423 #define CUSTOMDEBUGINFORMATION_SCHEMA_OFFSET ASYNCMETHOD_SCHEMA_OFFSET + 3
424 MONO_MT_HASCUSTDEBUG_IDX, /* Parent (HasCustomDebugInformation coded index) */
425 MONO_MT_GUID_IDX, /* Kind (Guid heap index) */
426 MONO_MT_BLOB_IDX, /* Value (Blob heap index) */
429 #define NULL_SCHEMA_OFFSET CUSTOMDEBUGINFORMATION_SCHEMA_OFFSET + 4
433 /* Must be the same order as MONO_TABLE_* */
434 const static unsigned char
435 table_description [] = {
436 MODULE_SCHEMA_OFFSET,
437 TYPEREF_SCHEMA_OFFSET,
438 TYPEDEF_SCHEMA_OFFSET,
439 FIELD_POINTER_SCHEMA_OFFSET,
441 METHOD_POINTER_SCHEMA_OFFSET,
442 METHOD_SCHEMA_OFFSET,
443 PARAM_POINTER_SCHEMA_OFFSET,
445 IFACEMAP_SCHEMA_OFFSET,
446 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
447 CONSTANT_SCHEMA_OFFSET,
448 CUSTOM_ATTR_SCHEMA_OFFSET,
449 FIELD_MARSHAL_SCHEMA_OFFSET,
450 DECL_SEC_SCHEMA_OFFSET,
451 CLASS_LAYOUT_SCHEMA_OFFSET,
452 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
453 STDALON_SIG_SCHEMA_OFFSET,
454 EVENTMAP_SCHEMA_OFFSET,
455 EVENT_POINTER_SCHEMA_OFFSET,
457 PROPERTY_MAP_SCHEMA_OFFSET,
458 PROPERTY_POINTER_SCHEMA_OFFSET,
459 PROPERTY_SCHEMA_OFFSET,
460 METHOD_SEMA_SCHEMA_OFFSET,
461 METHOD_IMPL_SCHEMA_OFFSET,
462 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
463 TYPESPEC_SCHEMA_OFFSET,
464 IMPLMAP_SCHEMA_OFFSET,
465 FIELD_RVA_SCHEMA_OFFSET,
468 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
469 ASSEMBLYPROC_SCHEMA_OFFSET,
470 ASSEMBLYOS_SCHEMA_OFFSET,
471 ASSEMBLYREF_SCHEMA_OFFSET,
472 ASSEMBLYREFPROC_SCHEMA_OFFSET,
473 ASSEMBLYREFOS_SCHEMA_OFFSET,
475 EXPORTED_TYPE_SCHEMA_OFFSET,
476 MANIFEST_SCHEMA_OFFSET,
477 NESTED_CLASS_SCHEMA_OFFSET,
478 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
479 METHOD_SPEC_SCHEMA_OFFSET,
480 GEN_CONSTRAINT_SCHEMA_OFFSET,
484 DOCUMENT_SCHEMA_OFFSET, /* 0x30 */
485 METHODBODY_SCHEMA_OFFSET,
486 LOCALSCOPE_SCHEMA_OFFSET,
487 LOCALVARIABLE_SCHEMA_OFFSET,
488 LOCALCONSTANT_SCHEMA_OFFSET,
489 IMPORTSCOPE_SCHEMA_OFFSET,
490 ASYNCMETHOD_SCHEMA_OFFSET,
491 CUSTOMDEBUGINFORMATION_SCHEMA_OFFSET
494 #ifdef HAVE_ARRAY_ELEM_INIT
495 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
496 #define MSGSTRFIELD1(line) str##line
497 static const struct msgstr_t {
498 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
499 #include "mono/cil/tables.def"
502 #define TABLEDEF(a,b) b,
503 #include "mono/cil/tables.def"
506 static const gint16 tableidx [] = {
507 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
508 #include "mono/cil/tables.def"
513 #define TABLEDEF(a,b) b,
514 static const char* const
515 mono_tables_names [] = {
516 #include "mono/cil/tables.def"
522 // Amount initially reserved in each imageset's mempool.
523 // FIXME: This number is arbitrary, a more practical number should be found
524 #define INITIAL_IMAGE_SET_SIZE 1024
527 * mono_meta_table_name:
528 * \param table table index
530 * Returns the name of the given ECMA metadata logical format table
531 * as described in ECMA 335, Partition II, Section 22.
533 * \returns the name for the \p table index
536 mono_meta_table_name (int table)
538 if ((table < 0) || (table > MONO_TABLE_LAST))
541 #ifdef HAVE_ARRAY_ELEM_INIT
542 return (const char*)&tablestr + tableidx [table];
544 return mono_tables_names [table];
548 /* The guy who wrote the spec for this should not be allowed near a
551 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
552 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
553 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
554 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
555 inverse of this mapping.
558 #define rtsize(meta,s,b) (((s) < (1 << (b)) ? 2 : 4))
561 idx_size (MonoImage *meta, int tableidx)
563 if (meta->referenced_tables && (meta->referenced_tables & ((guint64)1 << tableidx)))
564 return meta->referenced_table_rows [tableidx] < 65536 ? 2 : 4;
566 return meta->tables [tableidx].rows < 65536 ? 2 : 4;
570 get_nrows (MonoImage *meta, int tableidx)
572 if (meta->referenced_tables && (meta->referenced_tables & ((guint64)1 << tableidx)))
573 return meta->referenced_table_rows [tableidx];
575 return meta->tables [tableidx].rows;
578 /* Reference: Partition II - 23.2.6 */
580 * mono_metadata_compute_size:
581 * \param meta metadata context
582 * \param tableindex metadata table number
583 * \param result_bitfield pointer to \c guint32 where to store additional info
585 * \c mono_metadata_compute_size computes the length in bytes of a single
586 * row in a metadata table. The size of each column is encoded in the
587 * \p result_bitfield return value along with the number of columns in the table.
588 * the resulting bitfield should be handed to the \c mono_metadata_table_size
589 * and \c mono_metadata_table_count macros.
590 * This is a Mono runtime internal only function.
593 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
595 guint32 bitfield = 0;
596 int size = 0, field_size = 0;
599 const unsigned char *description = TableSchemas + table_description [tableindex];
601 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
604 field_size = 4; break;
607 field_size = 2; break;
610 field_size = 1; break;
612 case MONO_MT_BLOB_IDX:
613 field_size = meta->idx_blob_wide ? 4 : 2; break;
615 case MONO_MT_STRING_IDX:
616 field_size = meta->idx_string_wide ? 4 : 2; break;
618 case MONO_MT_GUID_IDX:
619 field_size = meta->idx_guid_wide ? 4 : 2; break;
621 case MONO_MT_TABLE_IDX:
622 /* Uhm, a table index can point to other tables besides the current one
623 * so, it's not correct to use the rowcount of the current table to
624 * get the size for this column - lupus
626 switch (tableindex) {
627 case MONO_TABLE_ASSEMBLYREFOS:
629 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
630 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
632 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
633 case MONO_TABLE_CLASSLAYOUT:
635 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
636 case MONO_TABLE_EVENTMAP:
637 g_assert (i == 0 || i == 1);
638 field_size = i ? idx_size (meta, MONO_TABLE_EVENT):
639 idx_size (meta, MONO_TABLE_TYPEDEF);
641 case MONO_TABLE_EVENT_POINTER:
643 field_size = idx_size (meta, MONO_TABLE_EVENT); break;
644 case MONO_TABLE_EXPORTEDTYPE:
646 /* the index is in another metadata file, so it must be 4 */
647 field_size = 4; break;
648 case MONO_TABLE_FIELDLAYOUT:
650 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
651 case MONO_TABLE_FIELDRVA:
653 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
654 case MONO_TABLE_FIELD_POINTER:
656 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
657 case MONO_TABLE_IMPLMAP:
659 field_size = idx_size (meta, MONO_TABLE_MODULEREF); break;
660 case MONO_TABLE_INTERFACEIMPL:
662 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
663 case MONO_TABLE_METHOD:
665 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
666 case MONO_TABLE_METHODIMPL:
668 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
669 case MONO_TABLE_METHODSEMANTICS:
671 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
672 case MONO_TABLE_METHOD_POINTER:
674 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
675 case MONO_TABLE_NESTEDCLASS:
676 g_assert (i == 0 || i == 1);
677 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
678 case MONO_TABLE_PARAM_POINTER:
680 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
681 case MONO_TABLE_PROPERTYMAP:
682 g_assert (i == 0 || i == 1);
683 field_size = i ? idx_size (meta, MONO_TABLE_PROPERTY):
684 idx_size (meta, MONO_TABLE_TYPEDEF);
686 case MONO_TABLE_PROPERTY_POINTER:
688 field_size = idx_size (meta, MONO_TABLE_PROPERTY); break;
689 case MONO_TABLE_TYPEDEF:
690 g_assert (i == 4 || i == 5);
691 field_size = i == 4 ? idx_size (meta, MONO_TABLE_FIELD):
692 idx_size (meta, MONO_TABLE_METHOD);
694 case MONO_TABLE_GENERICPARAM:
696 n = MAX (get_nrows (meta, MONO_TABLE_METHOD), get_nrows (meta, MONO_TABLE_TYPEDEF));
697 /*This is a coded token for 2 tables, so takes 1 bit */
698 field_size = rtsize (meta, n, 16 - MONO_TYPEORMETHOD_BITS);
700 case MONO_TABLE_GENERICPARAMCONSTRAINT:
702 field_size = idx_size (meta, MONO_TABLE_GENERICPARAM);
704 case MONO_TABLE_LOCALSCOPE:
707 // FIXME: This table is in another file
708 field_size = idx_size (meta, MONO_TABLE_METHOD);
711 field_size = idx_size (meta, MONO_TABLE_IMPORTSCOPE);
714 field_size = idx_size (meta, MONO_TABLE_LOCALVARIABLE);
717 field_size = idx_size (meta, MONO_TABLE_LOCALCONSTANT);
720 g_assert_not_reached ();
724 case MONO_TABLE_METHODBODY:
726 field_size = idx_size (meta, MONO_TABLE_DOCUMENT); break;
727 case MONO_TABLE_IMPORTSCOPE:
729 field_size = idx_size (meta, MONO_TABLE_IMPORTSCOPE); break;
730 case MONO_TABLE_STATEMACHINEMETHOD:
731 g_assert(i == 0 || i == 1);
732 field_size = idx_size(meta, MONO_TABLE_METHOD); break;
734 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
739 * HasConstant: ParamDef, FieldDef, Property
741 case MONO_MT_CONST_IDX:
742 n = MAX (get_nrows (meta, MONO_TABLE_PARAM),
743 get_nrows (meta, MONO_TABLE_FIELD));
744 n = MAX (n, get_nrows (meta, MONO_TABLE_PROPERTY));
746 /* 2 bits to encode tag */
747 field_size = rtsize (meta, n, 16-2);
751 * HasCustomAttribute: points to any table but
754 case MONO_MT_HASCAT_IDX:
756 * We believe that since the signature and
757 * permission are indexing the Blob heap,
758 * we should consider the blob size first
760 /* I'm not a believer - lupus
761 if (meta->idx_blob_wide){
766 n = MAX (get_nrows (meta, MONO_TABLE_METHOD),
767 get_nrows (meta, MONO_TABLE_FIELD));
768 n = MAX (n, get_nrows (meta, MONO_TABLE_TYPEREF));
769 n = MAX (n, get_nrows (meta, MONO_TABLE_TYPEDEF));
770 n = MAX (n, get_nrows (meta, MONO_TABLE_PARAM));
771 n = MAX (n, get_nrows (meta, MONO_TABLE_INTERFACEIMPL));
772 n = MAX (n, get_nrows (meta, MONO_TABLE_MEMBERREF));
773 n = MAX (n, get_nrows (meta, MONO_TABLE_MODULE));
774 n = MAX (n, get_nrows (meta, MONO_TABLE_DECLSECURITY));
775 n = MAX (n, get_nrows (meta, MONO_TABLE_PROPERTY));
776 n = MAX (n, get_nrows (meta, MONO_TABLE_EVENT));
777 n = MAX (n, get_nrows (meta, MONO_TABLE_STANDALONESIG));
778 n = MAX (n, get_nrows (meta, MONO_TABLE_MODULEREF));
779 n = MAX (n, get_nrows (meta, MONO_TABLE_TYPESPEC));
780 n = MAX (n, get_nrows (meta, MONO_TABLE_ASSEMBLY));
781 n = MAX (n, get_nrows (meta, MONO_TABLE_ASSEMBLYREF));
782 n = MAX (n, get_nrows (meta, MONO_TABLE_FILE));
783 n = MAX (n, get_nrows (meta, MONO_TABLE_EXPORTEDTYPE));
784 n = MAX (n, get_nrows (meta, MONO_TABLE_MANIFESTRESOURCE));
785 n = MAX (n, get_nrows (meta, MONO_TABLE_GENERICPARAM));
786 n = MAX (n, get_nrows (meta, MONO_TABLE_GENERICPARAMCONSTRAINT));
787 n = MAX (n, get_nrows (meta, MONO_TABLE_METHODSPEC));
789 /* 5 bits to encode */
790 field_size = rtsize (meta, n, 16-5);
794 * HasCustomAttribute: points to any table but
798 case MONO_MT_HASCUSTDEBUG_IDX:
799 n = MAX(get_nrows (meta, MONO_TABLE_METHOD),
800 get_nrows (meta, MONO_TABLE_FIELD));
801 n = MAX(n, get_nrows (meta, MONO_TABLE_TYPEREF));
802 n = MAX(n, get_nrows (meta, MONO_TABLE_TYPEDEF));
803 n = MAX(n, get_nrows (meta, MONO_TABLE_PARAM));
804 n = MAX(n, get_nrows (meta, MONO_TABLE_INTERFACEIMPL));
805 n = MAX(n, get_nrows (meta, MONO_TABLE_MEMBERREF));
806 n = MAX(n, get_nrows (meta, MONO_TABLE_MODULE));
807 n = MAX(n, get_nrows (meta, MONO_TABLE_DECLSECURITY));
808 n = MAX(n, get_nrows (meta, MONO_TABLE_PROPERTY));
809 n = MAX(n, get_nrows (meta, MONO_TABLE_EVENT));
810 n = MAX(n, get_nrows (meta, MONO_TABLE_STANDALONESIG));
811 n = MAX(n, get_nrows (meta, MONO_TABLE_MODULEREF));
812 n = MAX(n, get_nrows (meta, MONO_TABLE_TYPESPEC));
813 n = MAX(n, get_nrows (meta, MONO_TABLE_ASSEMBLY));
814 n = MAX(n, get_nrows (meta, MONO_TABLE_ASSEMBLYREF));
815 n = MAX(n, get_nrows (meta, MONO_TABLE_FILE));
816 n = MAX(n, get_nrows (meta, MONO_TABLE_EXPORTEDTYPE));
817 n = MAX(n, get_nrows (meta, MONO_TABLE_MANIFESTRESOURCE));
818 n = MAX(n, get_nrows (meta, MONO_TABLE_GENERICPARAM));
819 n = MAX(n, get_nrows (meta, MONO_TABLE_GENERICPARAMCONSTRAINT));
820 n = MAX(n, get_nrows (meta, MONO_TABLE_METHODSPEC));
821 n = MAX(n, get_nrows (meta, MONO_TABLE_DOCUMENT));
822 n = MAX(n, get_nrows (meta, MONO_TABLE_LOCALSCOPE));
823 n = MAX(n, get_nrows (meta, MONO_TABLE_LOCALVARIABLE));
824 n = MAX(n, get_nrows (meta, MONO_TABLE_LOCALCONSTANT));
825 n = MAX(n, get_nrows (meta, MONO_TABLE_IMPORTSCOPE));
827 /* 5 bits to encode */
828 field_size = rtsize(meta, n, 16 - 5);
832 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
833 * MemberRef and String.
835 case MONO_MT_CAT_IDX:
836 /* String is a heap, if it is wide, we know the size */
838 if (meta->idx_string_wide){
843 n = MAX (get_nrows (meta, MONO_TABLE_TYPEREF),
844 get_nrows (meta, MONO_TABLE_TYPEDEF));
845 n = MAX (n, get_nrows (meta, MONO_TABLE_METHOD));
846 n = MAX (n, get_nrows (meta, MONO_TABLE_MEMBERREF));
848 /* 3 bits to encode */
849 field_size = rtsize (meta, n, 16-3);
853 * HasDeclSecurity: Typedef, MethodDef, Assembly
855 case MONO_MT_HASDEC_IDX:
856 n = MAX (get_nrows (meta, MONO_TABLE_TYPEDEF),
857 get_nrows (meta, MONO_TABLE_METHOD));
858 n = MAX (n, get_nrows (meta, MONO_TABLE_ASSEMBLY));
860 /* 2 bits to encode */
861 field_size = rtsize (meta, n, 16-2);
865 * Implementation: File, AssemblyRef, ExportedType
867 case MONO_MT_IMPL_IDX:
868 n = MAX (get_nrows (meta, MONO_TABLE_FILE),
869 get_nrows (meta, MONO_TABLE_ASSEMBLYREF));
870 n = MAX (n, get_nrows (meta, MONO_TABLE_EXPORTEDTYPE));
872 /* 2 bits to encode tag */
873 field_size = rtsize (meta, n, 16-2);
877 * HasFieldMarshall: FieldDef, ParamDef
879 case MONO_MT_HFM_IDX:
880 n = MAX (get_nrows (meta, MONO_TABLE_FIELD),
881 get_nrows (meta, MONO_TABLE_PARAM));
883 /* 1 bit used to encode tag */
884 field_size = rtsize (meta, n, 16-1);
888 * MemberForwarded: FieldDef, MethodDef
891 n = MAX (get_nrows (meta, MONO_TABLE_FIELD),
892 get_nrows (meta, MONO_TABLE_METHOD));
894 /* 1 bit used to encode tag */
895 field_size = rtsize (meta, n, 16-1);
899 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
901 * It is TypeDef, _TypeRef_, TypeSpec, instead.
903 case MONO_MT_TDOR_IDX:
904 n = MAX (get_nrows (meta, MONO_TABLE_TYPEDEF),
905 get_nrows (meta, MONO_TABLE_TYPEREF));
906 n = MAX (n, get_nrows (meta, MONO_TABLE_TYPESPEC));
908 /* 2 bits to encode */
909 field_size = rtsize (meta, n, 16-2);
913 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
915 case MONO_MT_MRP_IDX:
916 n = MAX (get_nrows (meta, MONO_TABLE_TYPEDEF),
917 get_nrows (meta, MONO_TABLE_TYPEREF));
918 n = MAX (n, get_nrows (meta, MONO_TABLE_METHOD));
919 n = MAX (n, get_nrows (meta, MONO_TABLE_MODULEREF));
920 n = MAX (n, get_nrows (meta, MONO_TABLE_TYPESPEC));
922 /* 3 bits to encode */
923 field_size = rtsize (meta, n, 16 - 3);
927 * MethodDefOrRef: MethodDef, MemberRef
929 case MONO_MT_MDOR_IDX:
930 n = MAX (get_nrows (meta, MONO_TABLE_METHOD),
931 get_nrows (meta, MONO_TABLE_MEMBERREF));
933 /* 1 bit used to encode tag */
934 field_size = rtsize (meta, n, 16-1);
938 * HasSemantics: Property, Event
941 n = MAX (get_nrows (meta, MONO_TABLE_PROPERTY),
942 get_nrows (meta, MONO_TABLE_EVENT));
944 /* 1 bit used to encode tag */
945 field_size = rtsize (meta, n, 16-1);
949 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
952 n = MAX (get_nrows (meta, MONO_TABLE_MODULE),
953 get_nrows (meta, MONO_TABLE_MODULEREF));
954 n = MAX (n, get_nrows (meta, MONO_TABLE_ASSEMBLYREF));
955 n = MAX (n, get_nrows (meta, MONO_TABLE_TYPEREF));
957 /* 2 bits used to encode tag (ECMA spec claims 3) */
958 field_size = rtsize (meta, n, 16 - 2);
963 * encode field size as follows (we just need to
970 bitfield |= (field_size-1) << shift;
973 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
976 *result_bitfield = (i << 24) | bitfield;
981 * mono_metadata_compute_table_bases:
982 * \param meta metadata context to compute table values
984 * Computes the table bases for the metadata structure.
985 * This is an internal function used by the image loader code.
988 mono_metadata_compute_table_bases (MonoImage *meta)
991 const char *base = meta->tables_base;
993 for (i = 0; i < MONO_TABLE_NUM; i++) {
994 MonoTableInfo *table = &meta->tables [i];
995 if (table->rows == 0)
998 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
1000 base += table->rows * table->row_size;
1005 * mono_metadata_locate:
1006 * \param meta metadata context
1007 * \param table table code.
1008 * \param idx index of element to retrieve from \p table.
1010 * \returns a pointer to the \p idx element in the metadata table
1011 * whose code is \p table.
1014 mono_metadata_locate (MonoImage *meta, int table, int idx)
1016 /* idx == 0 refers always to NULL */
1017 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
1019 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
1023 * mono_metadata_locate_token:
1024 * \param meta metadata context
1025 * \param token metadata token
1027 * \returns a pointer to the data in the metadata represented by the
1031 mono_metadata_locate_token (MonoImage *meta, guint32 token)
1033 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
1037 * mono_metadata_string_heap:
1038 * \param meta metadata context
1039 * \param index index into the string heap.
1040 * \returns an in-memory pointer to the \p index in the string heap.
1043 mono_metadata_string_heap (MonoImage *meta, guint32 index)
1045 g_assert (index < meta->heap_strings.size);
1046 g_return_val_if_fail (index < meta->heap_strings.size, "");
1047 return meta->heap_strings.data + index;
1051 * mono_metadata_user_string:
1052 * \param meta metadata context
1053 * \param index index into the user string heap.
1054 * \returns an in-memory pointer to the \p index in the user string heap (<code>#US</code>).
1057 mono_metadata_user_string (MonoImage *meta, guint32 index)
1059 g_assert (index < meta->heap_us.size);
1060 g_return_val_if_fail (index < meta->heap_us.size, "");
1061 return meta->heap_us.data + index;
1065 * mono_metadata_blob_heap:
1066 * \param meta metadata context
1067 * \param index index into the blob.
1068 * \returns an in-memory pointer to the \p index in the Blob heap.
1071 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
1073 g_assert (index < meta->heap_blob.size);
1074 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
1075 return meta->heap_blob.data + index;
1079 * mono_metadata_guid_heap:
1080 * \param meta metadata context
1081 * \param index index into the guid heap.
1082 * \returns an in-memory pointer to the \p index in the guid heap.
1085 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
1088 index *= 16; /* adjust for guid size and 1-based index */
1089 g_return_val_if_fail (index < meta->heap_guid.size, "");
1090 return meta->heap_guid.data + index;
1093 static const unsigned char *
1094 dword_align (const unsigned char *ptr)
1096 #if SIZEOF_VOID_P == 8
1097 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
1099 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
1104 * mono_metadata_decode_row:
1105 * \param t table to extract information from.
1106 * \param idx index in table.
1107 * \param res array of \p res_size cols to store the results in
1109 * This decompresses the metadata element \p idx in table \p t
1110 * into the \c guint32 \p res array that has \p res_size elements
1113 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
1115 guint32 bitfield = t->size_bitfield;
1116 int i, count = mono_metadata_table_count (bitfield);
1119 g_assert (idx < t->rows);
1120 g_assert (idx >= 0);
1121 data = t->base + idx * t->row_size;
1123 g_assert (res_size == count);
1125 for (i = 0; i < count; i++) {
1126 int n = mono_metadata_table_size (bitfield, i);
1130 res [i] = *data; break;
1132 res [i] = read16 (data); break;
1134 res [i] = read32 (data); break;
1136 g_assert_not_reached ();
1143 * mono_metadata_decode_row_col:
1144 * \param t table to extract information from.
1145 * \param idx index for row in table.
1146 * \param col column in the row.
1148 * This function returns the value of column \p col from the \p idx
1149 * row in the table \p t .
1152 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
1154 guint32 bitfield = t->size_bitfield;
1156 register const char *data;
1159 g_assert (idx < t->rows);
1160 g_assert (col < mono_metadata_table_count (bitfield));
1161 data = t->base + idx * t->row_size;
1163 n = mono_metadata_table_size (bitfield, 0);
1164 for (i = 0; i < col; ++i) {
1166 n = mono_metadata_table_size (bitfield, i + 1);
1172 return read16 (data);
1174 return read32 (data);
1176 g_assert_not_reached ();
1182 * mono_metadata_decode_blob_size:
1183 * \param ptr pointer to a blob object
1184 * \param rptr the new position of the pointer
1186 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1188 * \returns the size of the blob object
1191 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1193 const unsigned char *ptr = (const unsigned char *)xptr;
1196 if ((*ptr & 0x80) == 0){
1197 size = ptr [0] & 0x7f;
1199 } else if ((*ptr & 0x40) == 0){
1200 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1203 size = ((ptr [0] & 0x1f) << 24) +
1215 * mono_metadata_decode_value:
1216 * \param ptr pointer to decode from
1217 * \param rptr the new position of the pointer
1219 * This routine decompresses 32-bit values as specified in the "Blob and
1220 * Signature" section (23.2)
1222 * \returns the decoded value
1225 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1227 const unsigned char *ptr = (const unsigned char *) _ptr;
1228 unsigned char b = *ptr;
1231 if ((b & 0x80) == 0){
1234 } else if ((b & 0x40) == 0){
1235 len = ((b & 0x3f) << 8 | ptr [1]);
1238 len = ((b & 0x1f) << 24) |
1251 * mono_metadata_decode_signed_value:
1252 * \param ptr pointer to decode from
1253 * \param rptr the new position of the pointer
1255 * This routine decompresses 32-bit signed values
1256 * (not specified in the spec)
1258 * \returns the decoded value
1261 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1263 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1264 gint32 ival = uval >> 1;
1267 /* ival is a truncated 2's complement negative number. */
1269 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1272 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1273 return ival - 0x2000;
1274 if (ival < 0x10000000)
1275 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1276 return ival - 0x10000000;
1277 g_assert (ival < 0x20000000);
1278 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1279 return ival - 0x20000000;
1283 * mono_metadata_translate_token_index:
1284 * Translates the given 1-based index into the \c Method, \c Field, \c Event, or \c Param tables
1285 * using the \c *Ptr tables in uncompressed metadata, if they are available.
1287 * FIXME: The caller is not forced to call this function, which is error-prone, since
1288 * forgetting to call it would only show up as a bug on uncompressed metadata.
1291 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1293 if (!image->uncompressed_metadata)
1297 case MONO_TABLE_METHOD:
1298 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1299 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1302 case MONO_TABLE_FIELD:
1303 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1304 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1307 case MONO_TABLE_EVENT:
1308 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1309 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1312 case MONO_TABLE_PROPERTY:
1313 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1314 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1317 case MONO_TABLE_PARAM:
1318 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1319 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1328 * mono_metadata_decode_table_row:
1330 * Same as \c mono_metadata_decode_row, but takes an \p image + \p table ID pair, and takes
1331 * uncompressed metadata into account, so it should be used to access the
1332 * \c Method, \c Field, \c Param and \c Event tables when the access is made from metadata, i.e.
1333 * \p idx is retrieved from a metadata table, like \c MONO_TYPEDEF_FIELD_LIST.
1336 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1338 if (image->uncompressed_metadata)
1339 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1341 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1345 * mono_metadata_decode_table_row_col:
1347 * Same as \c mono_metadata_decode_row_col, but takes an \p image + \p table ID pair, and takes
1348 * uncompressed metadata into account, so it should be used to access the
1349 * \c Method, \c Field, \c Param and \c Event tables.
1351 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1353 if (image->uncompressed_metadata)
1354 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1356 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1360 * mono_metadata_parse_typedef_or_ref:
1361 * \param m a metadata context.
1362 * \param ptr a pointer to an encoded TypedefOrRef in \p m
1363 * \param rptr pointer updated to match the end of the decoded stream
1364 * \returns a token valid in the \p m metadata decoded from
1365 * the compressed representation.
1368 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1371 token = mono_metadata_decode_value (ptr, &ptr);
1374 return mono_metadata_token_from_dor (token);
1378 * mono_metadata_parse_custom_mod:
1379 * \param m a metadata context.
1380 * \param dest storage where the info about the custom modifier is stored (may be NULL)
1381 * \param ptr a pointer to (possibly) the start of a custom modifier list
1382 * \param rptr pointer updated to match the end of the decoded stream
1384 * Checks if \p ptr points to a type custom modifier compressed representation.
1386 * \returns TRUE if a custom modifier was found, FALSE if not.
1389 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1391 MonoCustomMod local;
1392 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1395 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1396 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1403 * mono_metadata_parse_array_internal:
1404 * @m: a metadata context.
1405 * @transient: whenever to allocate data from the heap
1406 * @ptr: a pointer to an encoded array description.
1407 * @rptr: pointer updated to match the end of the decoded stream
1409 * Decodes the compressed array description found in the metadata @m at @ptr.
1411 * Returns: a #MonoArrayType structure describing the array type
1412 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1413 * on the value of @transient.
1415 * LOCKING: Acquires the loader lock
1417 static MonoArrayType *
1418 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1419 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1422 MonoArrayType *array;
1425 etype = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error); //FIXME this doesn't respect @transient
1429 array = transient ? (MonoArrayType *)g_malloc0 (sizeof (MonoArrayType)) : (MonoArrayType *)mono_image_alloc0 (m, sizeof (MonoArrayType));
1430 array->eklass = mono_class_from_mono_type (etype);
1431 array->rank = mono_metadata_decode_value (ptr, &ptr);
1433 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1434 if (array->numsizes)
1435 array->sizes = transient ? (int *)g_malloc0 (sizeof (int) * array->numsizes) : (int *)mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1436 for (i = 0; i < array->numsizes; ++i)
1437 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1439 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1440 if (array->numlobounds)
1441 array->lobounds = transient ? (int *)g_malloc0 (sizeof (int) * array->numlobounds) : (int *)mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1442 for (i = 0; i < array->numlobounds; ++i)
1443 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1451 * mono_metadata_parse_array:
1454 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1457 MonoArrayType *ret = mono_metadata_parse_array_internal (m, NULL, FALSE, ptr, rptr, &error);
1458 mono_error_cleanup (&error);
1464 * mono_metadata_free_array:
1465 * \param array array description
1467 * Frees the array description returned from \c mono_metadata_parse_array.
1470 mono_metadata_free_array (MonoArrayType *array)
1472 g_free (array->sizes);
1473 g_free (array->lobounds);
1478 * need to add common field and param attributes combinations:
1481 * public static literal
1484 * private static literal
1486 static const MonoType
1488 /* data, attrs, type, nmods, byref, pinned */
1489 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1490 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1491 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1492 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1493 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1494 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1495 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1496 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1497 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1498 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1499 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1500 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1501 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1502 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1503 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1504 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1505 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1506 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1507 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1508 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1509 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1510 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1511 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1512 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1513 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1514 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1515 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1516 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1517 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1518 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1519 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1520 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1521 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1522 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1525 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1527 static GHashTable *type_cache = NULL;
1528 static int next_generic_inst_id = 0;
1530 /* Protected by image_sets_mutex */
1531 static MonoImageSet *mscorlib_image_set;
1532 /* Protected by image_sets_mutex */
1533 static GPtrArray *image_sets;
1534 static mono_mutex_t image_sets_mutex;
1536 static guint mono_generic_class_hash (gconstpointer data);
1539 * MonoTypes with modifies are never cached, so we never check or use that field.
1542 mono_type_hash (gconstpointer data)
1544 const MonoType *type = (const MonoType *) data;
1545 if (type->type == MONO_TYPE_GENERICINST)
1546 return mono_generic_class_hash (type->data.generic_class);
1548 return type->type | (type->byref << 8) | (type->attrs << 9);
1552 mono_type_equal (gconstpointer ka, gconstpointer kb)
1554 const MonoType *a = (const MonoType *) ka;
1555 const MonoType *b = (const MonoType *) kb;
1557 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1559 /* need other checks */
1564 mono_metadata_generic_inst_hash (gconstpointer data)
1566 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1570 for (i = 0; i < ginst->type_argc; ++i) {
1572 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1575 return hash ^ (ginst->is_open << 8);
1579 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1583 // An optimization: if the ids of two insts are the same, we know they are the same inst and don't check contents.
1584 // Furthermore, because we perform early de-duping, if the ids differ, we know the contents differ.
1585 #ifndef MONO_SMALL_CONFIG // Optimization does not work in MONO_SMALL_CONFIG: There are no IDs
1586 if (a->id && b->id) { // "id 0" means "object has no id"-- de-duping hasn't been performed yet, must check contents.
1589 // In signature-comparison mode id equality implies object equality, but this is not true for inequality.
1590 // Two separate objects could have signature-equavalent contents.
1591 if (!signature_only)
1596 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1598 for (i = 0; i < a->type_argc; ++i) {
1599 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1606 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1608 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1609 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1611 return mono_generic_inst_equal_full (a, b, FALSE);
1615 mono_generic_class_hash (gconstpointer data)
1617 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1618 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1621 hash += gclass->is_tb_open;
1622 hash += mono_metadata_generic_context_hash (&gclass->context);
1628 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1630 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1631 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1633 return _mono_metadata_generic_class_equal (a, b, FALSE);
1637 * mono_metadata_init:
1639 * Initialize the global variables of this module.
1640 * This is a Mono runtime internal function.
1643 mono_metadata_init (void)
1647 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1649 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1650 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1652 mono_os_mutex_init_recursive (&image_sets_mutex);
1654 mono_counters_register ("ImgSet Cache Hit", MONO_COUNTER_METADATA | MONO_COUNTER_INT, &img_set_cache_hit);
1655 mono_counters_register ("ImgSet Cache Miss", MONO_COUNTER_METADATA | MONO_COUNTER_INT, &img_set_cache_miss);
1656 mono_counters_register ("ImgSet Count", MONO_COUNTER_METADATA | MONO_COUNTER_INT, &img_set_count);
1660 * mono_metadata_cleanup:
1662 * Free all resources used by this module.
1663 * This is a Mono runtime internal function.
1666 mono_metadata_cleanup (void)
1668 g_hash_table_destroy (type_cache);
1670 g_ptr_array_free (image_sets, TRUE);
1672 mono_os_mutex_destroy (&image_sets_mutex);
1676 * mono_metadata_parse_type:
1677 * \param m metadata context
1678 * \param mode kind of type that may be found at \p ptr
1679 * \param opt_attrs optional attributes to store in the returned type
1680 * \param ptr pointer to the type representation
1681 * \param rptr pointer updated to match the end of the decoded stream
1682 * \param transient whenever to allocate the result from the heap or from a mempool
1684 * Decode a compressed type description found at \p ptr in \p m .
1685 * \p mode can be one of \c MONO_PARSE_MOD_TYPE, \c MONO_PARSE_PARAM, \c MONO_PARSE_RET,
1686 * \c MONO_PARSE_FIELD, \c MONO_PARSE_LOCAL, \c MONO_PARSE_TYPE.
1687 * This function can be used to decode type descriptions in method signatures,
1688 * field signatures, locals signatures etc.
1690 * To parse a generic type, \c generic_container points to the current class'es
1691 * (the \c generic_container field in the <code>MonoClass</code>) or the current generic method's
1692 * (stored in <code>image->property_hash</code>) generic container.
1693 * When we encounter a \c MONO_TYPE_VAR or \c MONO_TYPE_MVAR, it's looked up in
1694 * this \c MonoGenericContainer.
1696 * LOCKING: Acquires the loader lock.
1698 * \returns a \c MonoType structure representing the decoded type.
1701 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container,
1702 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1704 MonoType *type, *cached;
1706 gboolean byref = FALSE;
1707 gboolean pinned = FALSE;
1708 const char *tmp_ptr;
1709 int count = 0; // Number of mod arguments
1715 * According to the spec, custom modifiers should come before the byref
1716 * flag, but the IL produced by ilasm from the following signature:
1717 * object modopt(...) &
1718 * starts with a byref flag, followed by the modifiers. (bug #49802)
1719 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1720 * it would be better to treat byref as real type constructor instead of
1722 * Also, pinned should come before anything else, but some MSV++ produced
1723 * assemblies violate this (#bug 61990).
1726 /* Count the modifiers first */
1731 case MONO_TYPE_PINNED:
1732 case MONO_TYPE_BYREF:
1735 case MONO_TYPE_CMOD_REQD:
1736 case MONO_TYPE_CMOD_OPT:
1738 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1745 if (count) { // There are mods, so the MonoType will be of nonstandard size.
1748 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1749 type = transient ? (MonoType *)g_malloc0 (size) : (MonoType *)mono_image_alloc0 (m, size);
1750 type->num_mods = count;
1752 mono_error_set_bad_image (error, m, "Invalid type with more than 64 modifiers");
1755 } else { // The type is of standard size, so we can allocate it on the stack.
1757 memset (type, 0, MONO_SIZEOF_TYPE);
1760 /* Iterate again, but now parse pinned, byref and custom modifiers */
1765 case MONO_TYPE_PINNED:
1769 case MONO_TYPE_BYREF:
1773 case MONO_TYPE_CMOD_REQD:
1774 case MONO_TYPE_CMOD_OPT:
1775 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1783 type->attrs = opt_attrs;
1784 type->byref = byref;
1785 type->pinned = pinned ? 1 : 0;
1787 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr, error))
1793 // Possibly we can return an already-allocated type instead of the one we decoded
1794 if (!type->num_mods && !transient) {
1795 /* no need to free type here, because it is on the stack */
1796 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1797 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1799 /* Consider the case:
1801 class Foo<T> { class Bar {} }
1802 class Test : Foo<Test>.Bar {}
1804 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1805 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1807 We ensure that the MonoClass is in a state that we can canonicalize to:
1809 klass->byval_arg.data.klass == klass
1810 klass->this_arg.data.klass == klass
1812 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1814 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1815 of a MonoClass which currently holds the loader lock. 'type' is local.
1817 if (ret->data.klass == type->data.klass) {
1821 /* No need to use locking since nobody is modifying the hash table */
1822 if ((cached = (MonoType *)g_hash_table_lookup (type_cache, type))) {
1827 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1829 if (type == &stype) { // Type was allocated on the stack, so we need to copy it to safety
1830 type = transient ? (MonoType *)g_malloc (MONO_SIZEOF_TYPE) : (MonoType *)mono_image_alloc (m, MONO_SIZEOF_TYPE);
1831 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1838 mono_metadata_parse_type_checked (MonoImage *m, MonoGenericContainer *container,
1839 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1841 return mono_metadata_parse_type_internal (m, container, opt_attrs, transient, ptr, rptr, error);
1845 * LOCKING: Acquires the loader lock.
1848 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1849 const char *ptr, const char **rptr)
1852 MonoType * type = mono_metadata_parse_type_internal (m, NULL, opt_attrs, FALSE, ptr, rptr, &error);
1853 mono_error_cleanup (&error);
1858 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1860 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1861 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1862 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1864 if (def < methodt->rows)
1865 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1867 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1869 for (i = param_index; i < lastp; ++i) {
1870 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1879 * mono_metadata_get_param_attrs:
1881 * @m The image to loader parameter attributes from
1882 * @def method def token (one based)
1883 * @param_count number of params to decode including the return value
1885 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1886 * returned memory needs to be freed by the caller. If all the param attributes are
1887 * 0, then NULL is returned.
1890 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1892 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1893 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1894 guint32 cols [MONO_PARAM_SIZE];
1895 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1898 if (def < methodt->rows)
1899 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1901 lastp = paramt->rows + 1;
1903 for (i = param_index; i < lastp; ++i) {
1904 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1905 if (cols [MONO_PARAM_FLAGS]) {
1907 pattrs = g_new0 (int, param_count);
1908 /* at runtime we just ignore this kind of malformed file:
1909 * the verifier can signal the error to the user
1911 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1913 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1922 * mono_metadata_parse_signature:
1923 * \param image metadata context
1924 * \param token metadata token
1926 * Decode a method signature stored in the \c StandAloneSig table
1928 * \returns a \c MonoMethodSignature describing the signature.
1930 MonoMethodSignature*
1931 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1934 MonoMethodSignature *ret;
1935 ret = mono_metadata_parse_signature_checked (image, token, &error);
1936 mono_error_cleanup (&error);
1941 * mono_metadata_parse_signature_checked:
1942 * @image: metadata context
1943 * @token: metadata token
1944 * @error: set on error
1946 * Decode a method signature stored in the STANDALONESIG table
1948 * Returns: a MonoMethodSignature describing the signature. On failure
1949 * returns NULL and sets @error.
1951 MonoMethodSignature*
1952 mono_metadata_parse_signature_checked (MonoImage *image, guint32 token, MonoError *error)
1956 MonoTableInfo *tables = image->tables;
1957 guint32 idx = mono_metadata_token_index (token);
1961 if (image_is_dynamic (image)) {
1962 return (MonoMethodSignature *)mono_lookup_dynamic_token (image, token, NULL, error);
1965 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1967 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1969 ptr = mono_metadata_blob_heap (image, sig);
1970 mono_metadata_decode_blob_size (ptr, &ptr);
1972 return mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
1976 * mono_metadata_signature_alloc:
1977 * \param image metadata context
1978 * \param nparams number of parameters in the signature
1980 * Allocate a \c MonoMethodSignature structure with the specified number of params.
1981 * The return type and the params types need to be filled later.
1982 * This is a Mono runtime internal function.
1984 * LOCKING: Assumes the loader lock is held.
1986 * \returns the new \c MonoMethodSignature structure.
1988 MonoMethodSignature*
1989 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1991 MonoMethodSignature *sig;
1993 sig = (MonoMethodSignature *)mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1994 sig->param_count = nparams;
1995 sig->sentinelpos = -1;
2000 static MonoMethodSignature*
2001 mono_metadata_signature_dup_internal_with_padding (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig, size_t padding)
2003 int sigsize, sig_header_size;
2004 MonoMethodSignature *ret;
2005 sigsize = sig_header_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *) + padding;
2007 sigsize += MONO_SIZEOF_TYPE;
2010 ret = (MonoMethodSignature *)mono_image_alloc (image, sigsize);
2012 ret = (MonoMethodSignature *)mono_mempool_alloc (mp, sigsize);
2014 ret = (MonoMethodSignature *)g_malloc (sigsize);
2017 memcpy (ret, sig, sig_header_size - padding);
2019 // Copy return value because of ownership semantics.
2021 // Danger! Do not alter padding use without changing the dup_add_this below
2022 intptr_t end_of_header = (intptr_t)( (char*)(ret) + sig_header_size);
2023 ret->ret = (MonoType *)end_of_header;
2024 memcpy (ret->ret, sig->ret, MONO_SIZEOF_TYPE);
2030 static MonoMethodSignature*
2031 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
2033 return mono_metadata_signature_dup_internal_with_padding (image, mp, sig, 0);
2036 * signature_dup_add_this:
2038 * Make a copy of @sig, adding an explicit this argument.
2040 MonoMethodSignature*
2041 mono_metadata_signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
2043 MonoMethodSignature *ret;
2044 ret = mono_metadata_signature_dup_internal_with_padding (image, NULL, sig, sizeof (MonoType *));
2046 ret->param_count = sig->param_count + 1;
2047 ret->hasthis = FALSE;
2049 for (int i = sig->param_count - 1; i >= 0; i --)
2050 ret->params [i + 1] = sig->params [i];
2051 ret->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
2053 for (int i = sig->param_count - 1; i >= 0; i --)
2054 g_assert(ret->params [i + 1]->type == sig->params [i]->type && ret->params [i+1]->type != MONO_TYPE_END);
2055 g_assert (ret->ret->type == sig->ret->type && ret->ret->type != MONO_TYPE_END);
2062 MonoMethodSignature*
2063 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
2065 MonoMethodSignature *ret = mono_metadata_signature_dup_internal (image, NULL, sig);
2067 for (int i = 0 ; i < sig->param_count; i ++)
2068 g_assert(ret->params [i]->type == sig->params [i]->type);
2069 g_assert (ret->ret->type == sig->ret->type);
2074 /*The mempool is accessed without synchronization*/
2075 MonoMethodSignature*
2076 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
2078 return mono_metadata_signature_dup_internal (NULL, mp, sig);
2082 * mono_metadata_signature_dup:
2083 * \param sig method signature
2085 * Duplicate an existing \c MonoMethodSignature so it can be modified.
2086 * This is a Mono runtime internal function.
2088 * \returns the new \c MonoMethodSignature structure.
2090 MonoMethodSignature*
2091 mono_metadata_signature_dup (MonoMethodSignature *sig)
2093 return mono_metadata_signature_dup_full (NULL, sig);
2097 * mono_metadata_signature_size:
2099 * Return the amount of memory allocated to SIG.
2102 mono_metadata_signature_size (MonoMethodSignature *sig)
2104 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
2108 * mono_metadata_parse_method_signature:
2109 * @m: metadata context
2110 * @generic_container: generics container
2111 * @def: the MethodDef index or 0 for Ref signatures.
2112 * @ptr: pointer to the signature metadata representation
2113 * @rptr: pointer updated to match the end of the decoded stream
2115 * Decode a method signature stored at @ptr.
2116 * This is a Mono runtime internal function.
2118 * LOCKING: Assumes the loader lock is held.
2120 * Returns: a MonoMethodSignature describing the signature.
2122 MonoMethodSignature *
2123 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
2124 int def, const char *ptr, const char **rptr, MonoError *error)
2126 MonoMethodSignature *method;
2127 int i, *pattrs = NULL;
2128 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
2129 guint32 gen_param_count = 0;
2130 gboolean is_open = FALSE;
2135 gen_param_count = 1;
2140 call_convention = *ptr & 0x0F;
2142 if (gen_param_count)
2143 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
2144 param_count = mono_metadata_decode_value (ptr, &ptr);
2147 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 */
2149 method = mono_metadata_signature_alloc (m, param_count);
2150 method->hasthis = hasthis;
2151 method->explicit_this = explicit_this;
2152 method->call_convention = call_convention;
2153 method->generic_param_count = gen_param_count;
2155 if (call_convention != 0xa) {
2156 method->ret = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [0] : 0, FALSE, ptr, &ptr, error);
2158 mono_metadata_free_method_signature (method);
2162 is_open = mono_class_is_open_constructed_type (method->ret);
2165 for (i = 0; i < method->param_count; ++i) {
2166 if (*ptr == MONO_TYPE_SENTINEL) {
2167 if (method->call_convention != MONO_CALL_VARARG || def) {
2168 mono_error_set_bad_image (error, m, "Found sentinel for methoddef or no vararg");
2172 if (method->sentinelpos >= 0) {
2173 mono_error_set_bad_image (error, m, "Found sentinel twice in the same signature.");
2177 method->sentinelpos = i;
2180 method->params [i] = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [i+1] : 0, FALSE, ptr, &ptr, error);
2181 if (!method->params [i]) {
2182 mono_metadata_free_method_signature (method);
2187 is_open = mono_class_is_open_constructed_type (method->params [i]);
2190 /* The sentinel could be missing if the caller does not pass any additional arguments */
2191 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
2192 method->sentinelpos = method->param_count;
2194 method->has_type_parameters = is_open;
2196 if (def && (method->call_convention == MONO_CALL_VARARG))
2197 method->sentinelpos = method->param_count;
2204 * Add signature to a cache and increase ref count...
2211 * mono_metadata_parse_method_signature:
2212 * \param m metadata context
2213 * \param def the \c MethodDef index or 0 for \c Ref signatures.
2214 * \param ptr pointer to the signature metadata representation
2215 * \param rptr pointer updated to match the end of the decoded stream
2217 * Decode a method signature stored at \p ptr.
2218 * This is a Mono runtime internal function.
2220 * LOCKING: Assumes the loader lock is held.
2222 * \returns a \c MonoMethodSignature describing the signature.
2224 MonoMethodSignature *
2225 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
2228 * This function MUST NOT be called by runtime code as it does error handling incorrectly.
2229 * Use mono_metadata_parse_method_signature_full instead.
2230 * It's ok to asser on failure as we no longer use it.
2233 MonoMethodSignature *ret;
2234 ret = mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr, &error);
2235 g_assert (mono_error_ok (&error));
2241 * mono_metadata_free_method_signature:
2242 * \param sig signature to destroy
2244 * Free the memory allocated in the signature \p sig.
2245 * This method needs to be robust and work also on partially-built
2246 * signatures, so it does extra checks.
2249 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2251 /* Everything is allocated from mempools */
2255 mono_metadata_free_type (sig->ret);
2256 for (i = 0; i < sig->param_count; ++i) {
2257 if (sig->params [i])
2258 mono_metadata_free_type (sig->params [i]);
2264 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2268 /* Allocated in inflate_generic_signature () */
2270 mono_metadata_free_type (sig->ret);
2271 for (i = 0; i < sig->param_count; ++i) {
2272 if (sig->params [i])
2273 mono_metadata_free_type (sig->params [i]);
2279 inflated_method_equal (gconstpointer a, gconstpointer b)
2281 const MonoMethodInflated *ma = (const MonoMethodInflated *)a;
2282 const MonoMethodInflated *mb = (const MonoMethodInflated *)b;
2283 if (ma->declaring != mb->declaring)
2285 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2289 inflated_method_hash (gconstpointer a)
2291 const MonoMethodInflated *ma = (const MonoMethodInflated *)a;
2292 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring));
2296 inflated_signature_equal (gconstpointer a, gconstpointer b)
2298 const MonoInflatedMethodSignature *sig1 = (const MonoInflatedMethodSignature *)a;
2299 const MonoInflatedMethodSignature *sig2 = (const MonoInflatedMethodSignature *)b;
2301 /* sig->sig is assumed to be canonized */
2302 if (sig1->sig != sig2->sig)
2304 /* The generic instances are canonized */
2305 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2309 inflated_signature_hash (gconstpointer a)
2311 const MonoInflatedMethodSignature *sig = (const MonoInflatedMethodSignature *)a;
2313 /* sig->sig is assumed to be canonized */
2314 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2318 dump_ginst (MonoGenericInst *ginst)
2323 g_print ("Ginst: <");
2324 for (i = 0; i < ginst->type_argc; ++i) {
2327 name = mono_type_get_name (ginst->type_argv [i]);
2328 g_print ("%s", name);
2334 static gboolean type_in_image (MonoType *type, MonoImage *image);
2337 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2339 gpointer iter = NULL;
2342 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2343 if (type_in_image (p, image))
2346 return type_in_image (mono_signature_get_return_type (sig), image);
2350 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2354 for (i = 0; i < ginst->type_argc; ++i) {
2355 if (type_in_image (ginst->type_argv [i], image))
2363 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2365 return gclass->container_class->image == image ||
2366 ginst_in_image (gclass->context.class_inst, image);
2370 type_in_image (MonoType *type, MonoImage *image)
2373 switch (type->type) {
2374 case MONO_TYPE_GENERICINST:
2375 return gclass_in_image (type->data.generic_class, image);
2377 type = type->data.type;
2379 case MONO_TYPE_SZARRAY:
2380 type = &type->data.klass->byval_arg;
2382 case MONO_TYPE_ARRAY:
2383 type = &type->data.array->eklass->byval_arg;
2385 case MONO_TYPE_FNPTR:
2386 return signature_in_image (type->data.method, image);
2388 case MONO_TYPE_MVAR:
2389 return image == get_image_for_generic_param (type->data.generic_param);
2391 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2392 return image == mono_class_from_mono_type (type)->image;
2397 image_sets_lock (void)
2399 mono_os_mutex_lock (&image_sets_mutex);
2403 image_sets_unlock (void)
2405 mono_os_mutex_unlock (&image_sets_mutex);
2409 compare_pointers (const void *a, const void *b)
2411 return (size_t)a - (size_t)b;
2415 #define HASH_TABLE_SIZE 1103
2416 static MonoImageSet *img_set_cache [HASH_TABLE_SIZE];
2419 mix_hash (uintptr_t source)
2421 unsigned int hash = source;
2424 hash = (((hash * 215497) >> 16) ^ ((hash * 1823231) + hash));
2426 // Mix in highest bits on 64-bit systems only
2427 if (sizeof (source) > 4)
2428 hash = hash ^ (source >> 32);
2434 hash_images (MonoImage **images, int nimages)
2438 for (i = 0; i < nimages; ++i)
2439 res += mix_hash ((size_t)images [i]);
2445 compare_img_set (MonoImageSet *set, MonoImage **images, int nimages)
2449 if (set->nimages != nimages)
2452 for (j = 0; j < nimages; ++j) {
2453 for (k = 0; k < nimages; ++k)
2454 if (set->images [k] == images [j])
2455 break; // Break on match
2457 // If we iterated all the way through set->images, images[j] was *not* found.
2459 break; // Break on "image not found"
2462 // If we iterated all the way through images without breaking, all items in images were found in set->images
2463 return j == nimages;
2467 static MonoImageSet*
2468 img_set_cache_get (MonoImage **images, int nimages)
2470 guint32 hash_code = hash_images (images, nimages);
2471 int index = hash_code % HASH_TABLE_SIZE;
2472 MonoImageSet *img = img_set_cache [index];
2473 if (!img || !compare_img_set (img, images, nimages)) {
2474 ++img_set_cache_miss;
2477 ++img_set_cache_hit;
2482 img_set_cache_add (MonoImageSet *set)
2484 guint32 hash_code = hash_images (set->images, set->nimages);
2485 int index = hash_code % HASH_TABLE_SIZE;
2486 img_set_cache [index] = set;
2490 img_set_cache_remove (MonoImageSet *is)
2492 guint32 hash_code = hash_images (is->images, is->nimages);
2493 int index = hash_code % HASH_TABLE_SIZE;
2494 if (img_set_cache [index] == is)
2495 img_set_cache [index] = NULL;
2500 * Return a MonoImageSet representing the set of images in IMAGES.
2502 static MonoImageSet*
2503 get_image_set (MonoImage **images, int nimages)
2509 /* Common case: Image set contains corlib only. If we've seen that case before, we cached the set. */
2510 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2511 return mscorlib_image_set;
2513 /* Happens with empty generic instances */
2514 // 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.
2516 return mscorlib_image_set;
2518 set = img_set_cache_get (images, nimages);
2525 image_sets = g_ptr_array_new ();
2527 // Before we go on, we should check to see whether a MonoImageSet with these images already exists.
2528 // We can search the referred-by imagesets of any one of our images to do this. Arbitrarily pick one here:
2529 if (images [0] == mono_defaults.corlib && nimages > 1)
2530 l = images [1]->image_sets; // Prefer not to search the imagesets of corlib-- that will be a long list.
2532 l = images [0]->image_sets;
2535 while (l) // Iterate over selected list, looking for an imageset with members equal to our target one
2537 set = (MonoImageSet *)l->data;
2539 if (set->nimages == nimages) { // Member count differs, this can't be it
2540 // Compare all members to all members-- order might be different
2541 for (j = 0; j < nimages; ++j) {
2542 for (k = 0; k < nimages; ++k)
2543 if (set->images [k] == images [j])
2544 break; // Break on match
2546 // If we iterated all the way through set->images, images[j] was *not* found.
2548 break; // Break on "image not found"
2551 // If we iterated all the way through images without breaking, all items in images were found in set->images
2553 break; // Break on "found a set with equal members"
2559 // If we iterated all the way through l without breaking, the imageset does not already exist and we shuold create it
2561 set = g_new0 (MonoImageSet, 1);
2562 set->nimages = nimages;
2563 set->images = g_new0 (MonoImage*, nimages);
2564 mono_os_mutex_init_recursive (&set->lock);
2565 for (i = 0; i < nimages; ++i)
2566 set->images [i] = images [i];
2567 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2568 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2569 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2570 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2572 for (i = 0; i < nimages; ++i)
2573 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2575 g_ptr_array_add (image_sets, set);
2578 img_set_cache_add (set);
2581 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2582 mono_memory_barrier ();
2583 mscorlib_image_set = set;
2586 image_sets_unlock ();
2592 delete_image_set (MonoImageSet *set)
2596 g_hash_table_destroy (set->gclass_cache);
2597 g_hash_table_destroy (set->ginst_cache);
2598 g_hash_table_destroy (set->gmethod_cache);
2599 g_hash_table_destroy (set->gsignature_cache);
2601 mono_wrapper_caches_free (&set->wrapper_caches);
2605 for (i = 0; i < set->nimages; ++i)
2606 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2608 g_ptr_array_remove (image_sets, set);
2610 image_sets_unlock ();
2612 img_set_cache_remove (set);
2615 mono_mempool_destroy (set->mempool);
2616 g_free (set->images);
2617 mono_os_mutex_destroy (&set->lock);
2622 mono_image_set_lock (MonoImageSet *set)
2624 mono_os_mutex_lock (&set->lock);
2628 mono_image_set_unlock (MonoImageSet *set)
2630 mono_os_mutex_unlock (&set->lock);
2634 mono_image_set_alloc (MonoImageSet *set, guint size)
2638 mono_image_set_lock (set);
2640 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2641 res = mono_mempool_alloc (set->mempool, size);
2642 mono_image_set_unlock (set);
2648 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2652 mono_image_set_lock (set);
2654 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2655 res = mono_mempool_alloc0 (set->mempool, size);
2656 mono_image_set_unlock (set);
2662 mono_image_set_strdup (MonoImageSet *set, const char *s)
2666 mono_image_set_lock (set);
2668 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2669 res = mono_mempool_strdup (set->mempool, s);
2670 mono_image_set_unlock (set);
2675 // Get a descriptive string for a MonoImageSet
2676 // Callers are obligated to free buffer with g_free after use
2678 mono_image_set_description (MonoImageSet *set)
2680 GString *result = g_string_new (NULL);
2682 g_string_append (result, "[");
2683 for (img = 0; img < set->nimages; img++)
2686 g_string_append (result, ", ");
2687 g_string_append (result, set->images[img]->name);
2689 g_string_append (result, "]");
2690 return g_string_free (result, FALSE);
2694 * Structure used by the collect_..._images functions to store the image list.
2697 MonoImage *image_buf [64];
2699 int nimages, images_len;
2703 collect_data_init (CollectData *data)
2705 data->images = data->image_buf;
2706 data->images_len = 64;
2711 collect_data_free (CollectData *data)
2713 if (data->images != data->image_buf)
2714 g_free (data->images);
2718 enlarge_data (CollectData *data)
2720 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2721 MonoImage **d = g_new (MonoImage *, new_len);
2724 g_assert_not_reached ();
2725 memcpy (d, data->images, data->images_len);
2726 if (data->images != data->image_buf)
2727 g_free (data->images);
2729 data->images_len = new_len;
2733 add_image (MonoImage *image, CollectData *data)
2737 /* The arrays are small, so use a linear search instead of a hash table */
2738 for (i = 0; i < data->nimages; ++i)
2739 if (data->images [i] == image)
2742 if (data->nimages == data->images_len)
2743 enlarge_data (data);
2745 data->images [data->nimages ++] = image;
2749 collect_type_images (MonoType *type, CollectData *data);
2752 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2756 for (i = 0; i < ginst->type_argc; ++i) {
2757 collect_type_images (ginst->type_argv [i], data);
2762 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2764 add_image (gclass->container_class->image, data);
2765 if (gclass->context.class_inst)
2766 collect_ginst_images (gclass->context.class_inst, data);
2770 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2772 gpointer iter = NULL;
2775 collect_type_images (mono_signature_get_return_type (sig), data);
2776 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2777 collect_type_images (p, data);
2781 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2783 collect_signature_images (sig->sig, data);
2784 if (sig->context.class_inst)
2785 collect_ginst_images (sig->context.class_inst, data);
2786 if (sig->context.method_inst)
2787 collect_ginst_images (sig->context.method_inst, data);
2791 collect_method_images (MonoMethodInflated *method, CollectData *data)
2793 MonoMethod *m = method->declaring;
2795 add_image (method->declaring->klass->image, data);
2796 if (method->context.class_inst)
2797 collect_ginst_images (method->context.class_inst, data);
2798 if (method->context.method_inst)
2799 collect_ginst_images (method->context.method_inst, data);
2801 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2803 if (image_is_dynamic (m->klass->image))
2804 collect_signature_images (mono_method_signature (m), data);
2808 collect_type_images (MonoType *type, CollectData *data)
2811 switch (type->type) {
2812 case MONO_TYPE_GENERICINST:
2813 collect_gclass_images (type->data.generic_class, data);
2816 type = type->data.type;
2818 case MONO_TYPE_SZARRAY:
2819 type = &type->data.klass->byval_arg;
2821 case MONO_TYPE_ARRAY:
2822 type = &type->data.array->eklass->byval_arg;
2824 case MONO_TYPE_FNPTR:
2825 //return signature_in_image (type->data.method, image);
2826 g_assert_not_reached ();
2828 case MONO_TYPE_MVAR:
2830 MonoImage *image = get_image_for_generic_param (type->data.generic_param);
2831 add_image (image, data);
2834 case MONO_TYPE_CLASS:
2835 case MONO_TYPE_VALUETYPE:
2836 add_image (mono_class_from_mono_type (type)->image, data);
2839 add_image (mono_defaults.corlib, data);
2846 } CleanForImageUserData;
2849 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2851 MonoGenericClass *gclass = (MonoGenericClass *)key;
2852 CleanForImageUserData *user_data = (CleanForImageUserData *)data;
2854 g_assert (gclass_in_image (gclass, user_data->image));
2856 user_data->list = g_slist_prepend (user_data->list, gclass);
2861 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2863 MonoGenericInst *ginst = (MonoGenericInst *)key;
2864 CleanForImageUserData *user_data = (CleanForImageUserData *)data;
2866 // This doesn't work during corlib compilation
2867 //g_assert (ginst_in_image (ginst, user_data->image));
2869 user_data->list = g_slist_prepend (user_data->list, ginst);
2874 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2876 MonoImage *image = (MonoImage *)data;
2877 MonoMethodInflated *method = (MonoMethodInflated *)key;
2880 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2881 g_assert (method->declaring->klass->image == image ||
2882 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2883 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2889 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2891 MonoImage *image = (MonoImage *)data;
2892 MonoInflatedMethodSignature *sig = (MonoInflatedMethodSignature *)key;
2894 return signature_in_image (sig->sig, image) ||
2895 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2896 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2900 check_gmethod (gpointer key, gpointer value, gpointer data)
2902 MonoMethodInflated *method = (MonoMethodInflated *)key;
2903 MonoImage *image = (MonoImage *)data;
2905 if (method->context.class_inst)
2906 g_assert (!ginst_in_image (method->context.class_inst, image));
2907 if (method->context.method_inst)
2908 g_assert (!ginst_in_image (method->context.method_inst, image));
2909 if (((MonoMethod*)method)->signature)
2910 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2916 * Run a consistency check on the image set data structures.
2918 static G_GNUC_UNUSED void
2919 check_image_sets (MonoImage *image)
2922 GSList *l = image->image_sets;
2927 for (i = 0; i < image_sets->len; ++i) {
2928 MonoImageSet *set = (MonoImageSet *)g_ptr_array_index (image_sets, i);
2930 if (!g_slist_find (l, set)) {
2931 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2937 mono_metadata_clean_for_image (MonoImage *image)
2939 CleanForImageUserData ginst_data, gclass_data;
2940 GSList *l, *set_list;
2942 //check_image_sets (image);
2945 * The data structures could reference each other so we delete them in two phases.
2946 * This is required because of the hashing functions in gclass/ginst_cache.
2948 ginst_data.image = gclass_data.image = image;
2949 ginst_data.list = gclass_data.list = NULL;
2951 /* Collect the items to delete */
2952 /* delete_image_set () modifies the lists so make a copy */
2953 for (l = image->image_sets; l; l = l->next) {
2954 MonoImageSet *set = (MonoImageSet *)l->data;
2956 mono_image_set_lock (set);
2957 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2958 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2959 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2960 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2961 mono_image_set_unlock (set);
2964 /* Delete the removed items */
2965 for (l = ginst_data.list; l; l = l->next)
2966 free_generic_inst ((MonoGenericInst *)l->data);
2967 for (l = gclass_data.list; l; l = l->next)
2968 free_generic_class ((MonoGenericClass *)l->data);
2969 g_slist_free (ginst_data.list);
2970 g_slist_free (gclass_data.list);
2971 /* delete_image_set () modifies the lists so make a copy */
2972 set_list = g_slist_copy (image->image_sets);
2973 for (l = set_list; l; l = l->next) {
2974 MonoImageSet *set = (MonoImageSet *)l->data;
2976 delete_image_set (set);
2978 g_slist_free (set_list);
2982 free_inflated_method (MonoMethodInflated *imethod)
2984 MonoMethod *method = (MonoMethod*)imethod;
2986 if (method->signature)
2987 mono_metadata_free_inflated_signature (method->signature);
2989 if (method->wrapper_type)
2990 g_free (((MonoMethodWrapper*)method)->method_data);
2996 free_generic_inst (MonoGenericInst *ginst)
3000 /* The ginst itself is allocated from the image set mempool */
3001 for (i = 0; i < ginst->type_argc; ++i)
3002 mono_metadata_free_type (ginst->type_argv [i]);
3006 free_generic_class (MonoGenericClass *gclass)
3008 /* The gclass itself is allocated from the image set mempool */
3009 if (gclass->cached_class && gclass->cached_class->interface_id)
3010 mono_unload_interface_id (gclass->cached_class);
3014 free_inflated_signature (MonoInflatedMethodSignature *sig)
3016 mono_metadata_free_inflated_signature (sig->sig);
3021 * mono_metadata_get_inflated_signature:
3023 * Given an inflated signature and a generic context, return a canonical copy of the
3024 * signature. The returned signature might be equal to SIG or it might be a cached copy.
3026 MonoMethodSignature *
3027 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
3029 MonoInflatedMethodSignature helper;
3030 MonoInflatedMethodSignature *res;
3035 helper.context.class_inst = context->class_inst;
3036 helper.context.method_inst = context->method_inst;
3038 collect_data_init (&data);
3040 collect_inflated_signature_images (&helper, &data);
3042 set = get_image_set (data.images, data.nimages);
3044 collect_data_free (&data);
3046 mono_image_set_lock (set);
3048 res = (MonoInflatedMethodSignature *)g_hash_table_lookup (set->gsignature_cache, &helper);
3050 res = g_new0 (MonoInflatedMethodSignature, 1);
3052 res->context.class_inst = context->class_inst;
3053 res->context.method_inst = context->method_inst;
3054 g_hash_table_insert (set->gsignature_cache, res, res);
3057 mono_image_set_unlock (set);
3063 mono_metadata_get_image_set_for_method (MonoMethodInflated *method)
3066 CollectData image_set_data;
3068 collect_data_init (&image_set_data);
3069 collect_method_images (method, &image_set_data);
3070 set = get_image_set (image_set_data.images, image_set_data.nimages);
3071 collect_data_free (&image_set_data);
3077 * mono_metadata_get_generic_inst:
3079 * Given a list of types, return a MonoGenericInst that represents that list.
3080 * The returned MonoGenericInst has its own copy of the list of types. The list
3081 * passed in the argument can be freed, modified or disposed of.
3085 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
3087 MonoGenericInst *ginst;
3090 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
3092 for (i = 0; i < type_argc; ++i)
3093 if (mono_class_is_open_constructed_type (type_argv [i]))
3095 is_open = (i < type_argc);
3097 ginst = (MonoGenericInst *)g_alloca (size);
3098 memset (ginst, 0, sizeof (MonoGenericInst));
3099 ginst->is_open = is_open;
3100 ginst->type_argc = type_argc;
3101 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
3103 return mono_metadata_get_canonical_generic_inst (ginst);
3108 * mono_metadata_get_canonical_generic_inst:
3109 * \param candidate an arbitrary generic instantiation
3111 * \returns the canonical generic instantiation that represents the given
3112 * candidate by identifying the image set for the candidate instantiation and
3113 * finding the instance in the image set or adding a copy of the given instance
3116 * The returned MonoGenericInst has its own copy of the list of types. The list
3117 * passed in the argument can be freed, modified or disposed of.
3121 mono_metadata_get_canonical_generic_inst (MonoGenericInst *candidate)
3124 int type_argc = candidate->type_argc;
3125 gboolean is_open = candidate->is_open;
3128 collect_data_init (&data);
3130 collect_ginst_images (candidate, &data);
3132 set = get_image_set (data.images, data.nimages);
3134 collect_data_free (&data);
3136 mono_image_set_lock (set);
3138 MonoGenericInst *ginst = (MonoGenericInst *)g_hash_table_lookup (set->ginst_cache, candidate);
3140 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
3141 ginst = (MonoGenericInst *)mono_image_set_alloc0 (set, size);
3142 #ifndef MONO_SMALL_CONFIG
3143 ginst->id = ++next_generic_inst_id;
3145 ginst->is_open = is_open;
3146 ginst->type_argc = type_argc;
3148 for (int i = 0; i < type_argc; ++i)
3149 ginst->type_argv [i] = mono_metadata_type_dup (NULL, candidate->type_argv [i]);
3151 g_hash_table_insert (set->ginst_cache, ginst, ginst);
3154 mono_image_set_unlock (set);
3159 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
3161 MonoGenericContainer *container = mono_class_get_generic_container (container_class);
3163 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
3165 return inst == container->context.class_inst;
3169 * mono_metadata_lookup_generic_class:
3171 * Returns a MonoGenericClass with the given properties.
3175 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
3177 MonoGenericClass *gclass;
3178 MonoGenericClass helper;
3179 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
3183 g_assert (mono_class_get_generic_container (container_class)->type_argc == inst->type_argc);
3185 memset (&helper, 0, sizeof(helper)); // act like g_new0
3186 helper.container_class = container_class;
3187 helper.context.class_inst = inst;
3188 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
3189 helper.is_tb_open = is_tb_open;
3191 collect_data_init (&data);
3193 collect_gclass_images (&helper, &data);
3195 set = get_image_set (data.images, data.nimages);
3197 collect_data_free (&data);
3199 mono_image_set_lock (set);
3201 gclass = (MonoGenericClass *)g_hash_table_lookup (set->gclass_cache, &helper);
3203 /* A tripwire just to keep us honest */
3204 g_assert (!helper.cached_class);
3207 mono_image_set_unlock (set);
3211 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
3213 gclass->is_dynamic = 1;
3215 gclass->is_tb_open = is_tb_open;
3216 gclass->container_class = container_class;
3217 gclass->context.class_inst = inst;
3218 gclass->context.method_inst = NULL;
3219 gclass->owner = set;
3220 if (inst == mono_class_get_generic_container (container_class)->context.class_inst && !is_tb_open)
3221 gclass->cached_class = container_class;
3223 g_hash_table_insert (set->gclass_cache, gclass, gclass);
3225 mono_image_set_unlock (set);
3231 * mono_metadata_inflate_generic_inst:
3233 * Instantiate the generic instance @ginst with the context @context.
3234 * Check @error for success.
3238 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
3240 MonoType **type_argv;
3241 MonoGenericInst *nginst = NULL;
3246 if (!ginst->is_open)
3249 type_argv = g_new0 (MonoType*, ginst->type_argc);
3251 for (i = 0; i < ginst->type_argc; i++) {
3252 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
3253 if (!mono_error_ok (error))
3258 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
3261 for (i = 0; i < count; i++)
3262 mono_metadata_free_type (type_argv [i]);
3269 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3270 int count, const char *ptr, const char **rptr, MonoError *error)
3272 MonoType **type_argv;
3273 MonoGenericInst *ginst;
3277 type_argv = g_new0 (MonoType*, count);
3279 for (i = 0; i < count; i++) {
3280 MonoType *t = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error);
3291 ginst = mono_metadata_get_generic_inst (count, type_argv);
3299 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3300 const char *ptr, const char **rptr, MonoError *error)
3302 MonoGenericInst *inst;
3309 // XXX how about transient?
3310 gtype = mono_metadata_parse_type_checked (m, NULL, 0, FALSE, ptr, &ptr, error);
3314 gklass = mono_class_from_mono_type (gtype);
3315 if (!mono_class_is_gtd (gklass)) {
3316 mono_error_set_bad_image (error, m, "Generic instance with non-generic definition");
3320 count = mono_metadata_decode_value (ptr, &ptr);
3321 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr, error);
3328 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3334 * @gc: The generic container to normalize
3335 * @type: The kind of generic parameters the resulting generic-container should contain
3338 static MonoGenericContainer *
3339 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3341 gboolean is_var = (type == MONO_TYPE_VAR);
3345 g_assert (is_var || type == MONO_TYPE_MVAR);
3348 if (gc->is_method || gc->parent)
3350 * The current MonoGenericContainer is a generic method -> its `parent'
3351 * points to the containing class'es container.
3359 MonoGenericContainer *
3360 get_anonymous_container_for_image (MonoImage *image, gboolean is_mvar)
3362 MonoGenericContainer **container_pointer;
3364 container_pointer = &image->anonymous_generic_method_container;
3366 container_pointer = &image->anonymous_generic_class_container;
3367 MonoGenericContainer *result = *container_pointer;
3369 // This container has never been created; make it now.
3372 // Note this is never deallocated anywhere-- it exists for the lifetime of the image it's allocated from
3373 result = (MonoGenericContainer *)mono_image_alloc0 (image, sizeof (MonoGenericContainer));
3374 result->owner.image = image;
3375 result->is_anonymous = TRUE;
3376 result->is_small_param = TRUE;
3377 result->is_method = is_mvar;
3379 // If another thread already made a container, use that and leak this new one.
3380 // (Technically it would currently be safe to just assign instead of CASing.)
3381 MonoGenericContainer *exchange = (MonoGenericContainer *)InterlockedCompareExchangePointer ((volatile gpointer *)container_pointer, result, NULL);
3389 * mono_metadata_parse_generic_param:
3390 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3391 * see mono_metadata_parse_type_checked() for details.
3392 * Internal routine to parse a generic type parameter.
3393 * LOCKING: Acquires the loader lock
3395 static MonoGenericParam *
3396 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3397 MonoTypeEnum type, const char *ptr, const char **rptr, MonoError *error)
3399 int index = mono_metadata_decode_value (ptr, &ptr);
3405 generic_container = select_container (generic_container, type);
3406 if (!generic_container) {
3407 gboolean is_mvar = FALSE;
3412 case MONO_TYPE_MVAR:
3416 g_error ("Cerating generic param object with invalid MonoType"); // This is not a generic param
3419 /* Create dummy MonoGenericParam */
3420 MonoGenericParam *param;
3422 param = (MonoGenericParam *)mono_image_alloc0 (m, sizeof (MonoGenericParam));
3424 param->owner = get_anonymous_container_for_image (m, is_mvar);
3429 if (index >= generic_container->type_argc) {
3430 mono_error_set_bad_image (error, m, "Invalid generic %s parameter index %d, max index is %d",
3431 generic_container->is_method ? "method" : "type",
3432 index, generic_container->type_argc);
3436 //This can't return NULL
3437 return mono_generic_container_get_param (generic_container, index);
3441 * mono_metadata_get_shared_type:
3443 * Return a shared instance of TYPE, if available, NULL otherwise.
3444 * Shared MonoType instances help save memory. Their contents should not be modified
3445 * by the caller. They do not need to be freed as their lifetime is bound by either
3446 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3447 * instance they are embedded in. If they are freed, they should be freed using
3448 * mono_metadata_free_type () instead of g_free ().
3451 mono_metadata_get_shared_type (MonoType *type)
3455 /* No need to use locking since nobody is modifying the hash table */
3456 if ((cached = (MonoType *)g_hash_table_lookup (type_cache, type)))
3459 switch (type->type){
3460 case MONO_TYPE_CLASS:
3461 case MONO_TYPE_VALUETYPE:
3462 if (type == &type->data.klass->byval_arg)
3464 if (type == &type->data.klass->this_arg)
3475 compare_type_literals (MonoImage *image, int class_type, int type_type, MonoError *error)
3479 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3480 * See mcs/test/gtest-440. and #650936.
3481 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3485 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3488 if (class_type == type_type)
3491 if (type_type == MONO_TYPE_CLASS) {
3492 if (class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT)
3494 //XXX stringify this argument
3495 mono_error_set_bad_image (error, image, "Expected reference type but got type kind %d", class_type);
3499 g_assert (type_type == MONO_TYPE_VALUETYPE);
3500 switch (class_type) {
3501 case MONO_TYPE_BOOLEAN:
3502 case MONO_TYPE_CHAR:
3515 case MONO_TYPE_CLASS:
3518 //XXX stringify this argument
3519 mono_error_set_bad_image (error, image, "Expected value type but got type kind %d", class_type);
3525 verify_var_type_and_container (MonoImage *image, int var_type, MonoGenericContainer *container, MonoError *error)
3528 if (var_type == MONO_TYPE_MVAR) {
3529 if (!container->is_method) { //MVAR and a method container
3530 mono_error_set_bad_image (error, image, "MVAR parsed in a context without a method container");
3534 if (!(!container->is_method || //VAR and class container
3535 (container->is_method && container->parent))) { //VAR and method container with parent
3536 mono_error_set_bad_image (error, image, "VAR parsed in a context without a class container");
3544 * do_mono_metadata_parse_type:
3545 * @type: MonoType to be filled in with the return value
3547 * @generic_context: generics_context
3548 * @transient: whenever to allocate data from the heap
3549 * @ptr: pointer to the encoded type
3550 * @rptr: pointer where the end of the encoded type is saved
3552 * Internal routine used to "fill" the contents of @type from an
3553 * allocated pointer. This is done this way to avoid doing too
3554 * many mini-allocations (particularly for the MonoFieldType which
3555 * most of the time is just a MonoType, but sometimes might be augmented).
3557 * This routine is used by mono_metadata_parse_type and
3558 * mono_metadata_parse_field_type
3560 * This extracts a Type as specified in Partition II (22.2.12)
3562 * Returns: FALSE if the type could not be loaded
3565 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3566 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
3570 type->type = (MonoTypeEnum)mono_metadata_decode_value (ptr, &ptr);
3572 switch (type->type){
3573 case MONO_TYPE_VOID:
3574 case MONO_TYPE_BOOLEAN:
3575 case MONO_TYPE_CHAR:
3588 case MONO_TYPE_STRING:
3589 case MONO_TYPE_OBJECT:
3590 case MONO_TYPE_TYPEDBYREF:
3592 case MONO_TYPE_VALUETYPE:
3593 case MONO_TYPE_CLASS: {
3596 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3597 klass = mono_class_get_checked (m, token, error);
3598 type->data.klass = klass;
3602 if (!compare_type_literals (m, klass->byval_arg.type, type->type, error))
3607 case MONO_TYPE_SZARRAY: {
3608 MonoType *etype = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3612 type->data.klass = mono_class_from_mono_type (etype);
3615 mono_metadata_free_type (etype);
3617 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.
3620 case MONO_TYPE_PTR: {
3621 type->data.type = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3622 if (!type->data.type)
3626 case MONO_TYPE_FNPTR: {
3627 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, error);
3628 if (!type->data.method)
3632 case MONO_TYPE_ARRAY: {
3633 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr, error);
3634 if (!type->data.array)
3638 case MONO_TYPE_MVAR:
3639 case MONO_TYPE_VAR: {
3640 if (container && !verify_var_type_and_container (m, type->type, container, error))
3643 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr, error);
3644 if (!type->data.generic_param)
3649 case MONO_TYPE_GENERICINST: {
3650 if (!do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr, error))
3655 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);
3665 * mono_metadata_free_type:
3666 * \param type type to free
3668 * Free the memory allocated for type \p type which is allocated on the heap.
3671 mono_metadata_free_type (MonoType *type)
3673 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3676 switch (type->type){
3677 case MONO_TYPE_OBJECT:
3678 case MONO_TYPE_STRING:
3679 if (!type->data.klass)
3682 case MONO_TYPE_CLASS:
3683 case MONO_TYPE_VALUETYPE:
3684 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3688 mono_metadata_free_type (type->data.type);
3690 case MONO_TYPE_FNPTR:
3691 mono_metadata_free_method_signature (type->data.method);
3693 case MONO_TYPE_ARRAY:
3694 mono_metadata_free_array (type->data.array);
3705 hex_dump (const char *buffer, int base, int count)
3707 int show_header = 1;
3715 for (i = 0; i < count; i++){
3718 printf ("\n0x%08x: ", (unsigned char) base + i);
3720 printf ("%02x ", (unsigned char) (buffer [i]));
3727 * @ptr: Points to the beginning of the Section Data (25.3)
3729 static MonoExceptionClause*
3730 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr, MonoError *error)
3732 unsigned char sect_data_flags;
3734 guint32 sect_data_len;
3735 MonoExceptionClause* clauses = NULL;
3740 /* align on 32-bit boundary */
3741 ptr = dword_align (ptr);
3742 sect_data_flags = *ptr;
3745 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3747 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3750 sect_data_len = ptr [0];
3754 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3755 const unsigned char *p = dword_align (ptr);
3757 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3758 /* we could just store a pointer if we don't need to byteswap */
3759 clauses = (MonoExceptionClause *)g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3760 for (i = 0; i < *num_clauses; ++i) {
3761 MonoExceptionClause *ec = &clauses [i];
3764 ec->flags = read32 (p);
3765 ec->try_offset = read32 (p + 4);
3766 ec->try_len = read32 (p + 8);
3767 ec->handler_offset = read32 (p + 12);
3768 ec->handler_len = read32 (p + 16);
3769 tof_value = read32 (p + 20);
3772 ec->flags = read16 (p);
3773 ec->try_offset = read16 (p + 2);
3774 ec->try_len = *(p + 4);
3775 ec->handler_offset = read16 (p + 5);
3776 ec->handler_len = *(p + 7);
3777 tof_value = read32 (p + 8);
3780 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3781 ec->data.filter_offset = tof_value;
3782 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3783 ec->data.catch_class = NULL;
3785 ec->data.catch_class = mono_class_get_checked (m, tof_value, error);
3786 if (!is_ok (error)) {
3792 ec->data.catch_class = NULL;
3794 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3798 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3799 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3806 * mono_method_get_header_summary:
3807 * @method: The method to get the header.
3808 * @summary: Where to store the header
3811 * Returns: TRUE if the header was properly decoded.
3814 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3820 unsigned char flags, format;
3823 /*Only the GMD has a pointer to the metadata.*/
3824 while (method->is_inflated)
3825 method = ((MonoMethodInflated*)method)->declaring;
3827 summary->code_size = 0;
3828 summary->has_clauses = FALSE;
3830 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3831 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))
3834 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3835 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3838 summary->code_size = header->code_size;
3839 summary->has_clauses = header->num_clauses > 0;
3844 idx = mono_metadata_token_index (method->token);
3845 img = method->klass->image;
3846 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3848 /*We must run the verifier since we'll be decoding it.*/
3849 if (!mono_verifier_verify_method_header (img, rva, NULL))
3852 ptr = mono_image_rva_map (img, rva);
3856 flags = *(const unsigned char *)ptr;
3857 format = flags & METHOD_HEADER_FORMAT_MASK;
3860 case METHOD_HEADER_TINY_FORMAT:
3862 summary->code_size = flags >> 2;
3864 case METHOD_HEADER_FAT_FORMAT:
3865 fat_flags = read16 (ptr);
3867 summary->code_size = read32 (ptr);
3868 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3869 summary->has_clauses = TRUE;
3878 * mono_metadata_parse_mh_full:
3879 * @m: metadata context
3880 * @generic_context: generics context
3881 * @ptr: pointer to the method header.
3883 * Decode the method header at @ptr, including pointer to the IL code,
3884 * info about local variables and optional exception tables.
3885 * This is a Mono runtime internal function.
3887 * LOCKING: Acquires the loader lock.
3889 * Returns: a transient MonoMethodHeader allocated from the heap.
3892 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr, MonoError *error)
3894 MonoMethodHeader *mh = NULL;
3895 unsigned char flags = *(const unsigned char *) ptr;
3896 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3898 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3899 const unsigned char *code;
3900 MonoExceptionClause* clauses = NULL;
3901 int num_clauses = 0;
3902 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3903 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3908 mono_error_set_bad_image (error, m, "Method header with null pointer");
3913 case METHOD_HEADER_TINY_FORMAT:
3914 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3917 mh->is_transient = TRUE;
3918 local_var_sig_tok = 0;
3919 mh->code_size = flags >> 2;
3920 mh->code = (unsigned char*)ptr;
3922 case METHOD_HEADER_FAT_FORMAT:
3923 fat_flags = read16 (ptr);
3925 max_stack = read16 (ptr);
3927 code_size = read32 (ptr);
3929 local_var_sig_tok = read32 (ptr);
3932 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3937 code = (unsigned char*)ptr;
3939 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3943 * There are more sections
3945 ptr = (char*)code + code_size;
3948 mono_error_set_bad_image (error, m, "Invalid method header format %d", format);
3952 if (local_var_sig_tok) {
3953 int idx = (local_var_sig_tok & 0xffffff)-1;
3954 if (idx >= t->rows || idx < 0) {
3955 mono_error_set_bad_image (error, m, "Invalid method header local vars signature token 0x%8x", idx);
3958 mono_metadata_decode_row (t, idx, cols, 1);
3960 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL)) {
3961 mono_error_set_bad_image (error, m, "Method header locals signature 0x%8x verification failed", idx);
3965 if (fat_flags & METHOD_HEADER_MORE_SECTS) {
3966 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr, error);
3970 if (local_var_sig_tok) {
3971 const char *locals_ptr;
3974 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3975 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3976 if (*locals_ptr != 0x07)
3977 g_warning ("wrong signature for locals blob");
3979 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3980 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3981 mh->num_locals = len;
3982 for (i = 0; i < len; ++i) {
3983 mh->locals [i] = mono_metadata_parse_type_internal (m, container, 0, TRUE, locals_ptr, &locals_ptr, error);
3988 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3991 mh->code_size = code_size;
3992 mh->max_stack = max_stack;
3993 mh->is_transient = TRUE;
3994 mh->init_locals = init_locals;
3996 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3997 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3999 mh->clauses = clausesp;
4000 mh->num_clauses = num_clauses;
4011 * mono_metadata_parse_mh:
4012 * \param generic_context generics context
4013 * \param ptr pointer to the method header.
4015 * Decode the method header at \p ptr, including pointer to the IL code,
4016 * info about local variables and optional exception tables.
4018 * \returns a transient \c MonoMethodHeader allocated from the heap.
4021 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
4024 MonoMethodHeader *header = mono_metadata_parse_mh_full (m, NULL, ptr, &error);
4025 mono_error_cleanup (&error);
4030 * mono_metadata_free_mh:
4031 * \param mh a method header
4033 * Free the memory allocated for the method header.
4036 mono_metadata_free_mh (MonoMethodHeader *mh)
4040 /* If it is not transient it means it's part of a wrapper method,
4041 * or a SRE-generated method, so the lifetime in that case is
4042 * dictated by the method's own lifetime
4044 if (mh->is_transient) {
4045 for (i = 0; i < mh->num_locals; ++i)
4046 mono_metadata_free_type (mh->locals [i]);
4052 * mono_method_header_get_code:
4053 * \param header a \c MonoMethodHeader pointer
4054 * \param code_size memory location for returning the code size
4055 * \param max_stack memory location for returning the max stack
4057 * Method header accessor to retreive info about the IL code properties:
4058 * a pointer to the IL code itself, the size of the code and the max number
4059 * of stack slots used by the code.
4061 * \returns pointer to the IL code represented by the method header.
4063 const unsigned char*
4064 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
4067 *code_size = header->code_size;
4069 *max_stack = header->max_stack;
4070 return header->code;
4074 * mono_method_header_get_locals:
4075 * \param header a \c MonoMethodHeader pointer
4076 * \param num_locals memory location for returning the number of local variables
4077 * \param init_locals memory location for returning the init_locals flag
4079 * Method header accessor to retreive info about the local variables:
4080 * an array of local types, the number of locals and whether the locals
4081 * are supposed to be initialized to 0 on method entry
4083 * \returns pointer to an array of types of the local variables
4086 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
4089 *num_locals = header->num_locals;
4091 *init_locals = header->init_locals;
4092 return header->locals;
4096 * mono_method_header_get_num_clauses:
4097 * @header: a MonoMethodHeader pointer
4099 * Method header accessor to retreive the number of exception clauses.
4101 * Returns: the number of exception clauses present
4104 mono_method_header_get_num_clauses (MonoMethodHeader *header)
4106 return header->num_clauses;
4110 * mono_method_header_get_clauses:
4111 * \param header a \c MonoMethodHeader pointer
4112 * \param method \c MonoMethod the header belongs to
4113 * \param iter pointer to a iterator
4114 * \param clause pointer to a \c MonoExceptionClause structure which will be filled with the info
4116 * Get the info about the exception clauses in the method. Set \c *iter to NULL to
4117 * initiate the iteration, then call the method repeatedly until it returns FALSE.
4118 * At each iteration, the structure pointed to by clause if filled with the
4119 * exception clause information.
4121 * \returns TRUE if clause was filled with info, FALSE if there are no more exception
4125 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
4127 MonoExceptionClause *sc;
4128 /* later we'll be able to use this interface to parse the clause info on demand,
4129 * without allocating anything.
4131 if (!iter || !header->num_clauses)
4134 *iter = sc = header->clauses;
4138 sc = (MonoExceptionClause *)*iter;
4140 if (sc < header->clauses + header->num_clauses) {
4149 * mono_metadata_parse_field_type:
4150 * \param m metadata context to extract information from
4151 * \param ptr pointer to the field signature
4152 * \param rptr pointer updated to match the end of the decoded stream
4154 * Parses the field signature, and returns the type information for it.
4156 * \returns The \c MonoType that was extracted from \p ptr .
4159 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
4162 MonoType * type = mono_metadata_parse_type_internal (m, NULL, field_flags, FALSE, ptr, rptr, &error);
4163 mono_error_cleanup (&error);
4168 * mono_metadata_parse_param:
4169 * \param m metadata context to extract information from
4170 * \param ptr pointer to the param signature
4171 * \param rptr pointer updated to match the end of the decoded stream
4173 * Parses the param signature, and returns the type information for it.
4175 * \returns The \c MonoType that was extracted from \p ptr .
4178 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
4181 MonoType * type = mono_metadata_parse_type_internal (m, NULL, 0, FALSE, ptr, rptr, &error);
4182 mono_error_cleanup (&error);
4187 * mono_metadata_token_from_dor:
4188 * \param dor_token A \c TypeDefOrRef coded index
4190 * \p dor_token is a \c TypeDefOrRef coded index: it contains either
4191 * a \c TypeDef, \c TypeRef or \c TypeSpec in the lower bits, and the upper
4192 * bits contain an index into the table.
4194 * \returns an expanded token
4197 mono_metadata_token_from_dor (guint32 dor_index)
4201 table = dor_index & 0x03;
4202 idx = dor_index >> 2;
4205 case 0: /* TypeDef */
4206 return MONO_TOKEN_TYPE_DEF | idx;
4207 case 1: /* TypeRef */
4208 return MONO_TOKEN_TYPE_REF | idx;
4209 case 2: /* TypeSpec */
4210 return MONO_TOKEN_TYPE_SPEC | idx;
4212 g_assert_not_reached ();
4219 * We use this to pass context information to the row locator
4222 int idx; /* The index that we are trying to locate */
4223 int col_idx; /* The index in the row where idx may be stored */
4224 MonoTableInfo *t; /* pointer to the table */
4229 * How the row locator works.
4234 * ___|___------> _______
4237 * A column in the rows of table A references an index in table B.
4238 * For example A may be the TYPEDEF table and B the METHODDEF table.
4240 * Given an index in table B we want to get the row in table A
4241 * where the column n references our index in B.
4243 * In the locator_t structure:
4245 * col_idx is the column number
4246 * index is the index in table B
4247 * result will be the index in table A
4250 * Table A Table B column (in table A)
4251 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
4252 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
4253 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
4254 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
4255 * METHODSEM PROPERTY ASSOCIATION (encoded index)
4257 * Note that we still don't support encoded indexes.
4261 typedef_locator (const void *a, const void *b)
4263 locator_t *loc = (locator_t *) a;
4264 const char *bb = (const char *) b;
4265 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
4266 guint32 col, col_next;
4268 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
4274 * Need to check that the next row is valid.
4276 if (typedef_index + 1 < loc->t->rows) {
4277 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
4278 if (loc->idx >= col_next)
4281 if (col == col_next)
4285 loc->result = typedef_index;
4291 table_locator (const void *a, const void *b)
4293 locator_t *loc = (locator_t *) a;
4294 const char *bb = (const char *) b;
4295 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4298 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4300 if (loc->idx == col) {
4301 loc->result = table_index;
4311 declsec_locator (const void *a, const void *b)
4313 locator_t *loc = (locator_t *) a;
4314 const char *bb = (const char *) b;
4315 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4318 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4320 if (loc->idx == col) {
4321 loc->result = table_index;
4333 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
4334 * which contains IDX.
4337 search_ptr_table (MonoImage *image, int table, int idx)
4339 MonoTableInfo *ptrdef = &image->tables [table];
4342 /* Use a linear search to find our index in the table */
4343 for (i = 0; i < ptrdef->rows; i ++)
4344 /* All the Ptr tables have the same structure */
4345 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
4348 if (i < ptrdef->rows)
4355 * mono_metadata_typedef_from_field:
4356 * \param meta metadata context
4357 * \param index FieldDef token
4359 * \returns the 1-based index into the \c TypeDef table of the type that
4360 * declared the field described by \p index, or 0 if not found.
4363 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
4365 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4371 loc.idx = mono_metadata_token_index (index);
4372 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
4375 if (meta->uncompressed_metadata)
4376 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4378 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4381 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4382 return loc.result + 1;
4386 * mono_metadata_typedef_from_method:
4387 * \param meta metadata context
4388 * \param index \c MethodDef token
4389 * \returns the 1-based index into the \c TypeDef table of the type that
4390 * declared the method described by \p index. 0 if not found.
4393 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4395 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4401 loc.idx = mono_metadata_token_index (index);
4402 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4405 if (meta->uncompressed_metadata)
4406 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4408 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4411 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4412 return loc.result + 1;
4416 * mono_metadata_interfaces_from_typedef_full:
4417 * @meta: metadata context
4418 * @index: typedef token
4419 * @interfaces: Out parameter used to store the interface array
4420 * @count: Out parameter used to store the number of interfaces
4421 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4422 * @context: The generic context
4424 * The array of interfaces that the @index typedef token implements is returned in
4425 * @interfaces. The number of elements in the array is returned in @count.
4428 * Returns: TRUE on success, FALSE on failure.
4431 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4433 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4436 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4447 loc.idx = mono_metadata_token_index (index);
4448 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4451 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4456 * We may end up in the middle of the rows...
4459 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4465 while (pos < tdef->rows) {
4466 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4467 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4472 if (heap_alloc_result)
4473 result = g_new0 (MonoClass*, pos - start);
4475 result = (MonoClass **)mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4478 while (pos < tdef->rows) {
4481 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4482 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4484 iface = mono_class_get_and_inflate_typespec_checked (
4485 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4488 result [pos - start] = iface;
4491 *count = pos - start;
4492 *interfaces = result;
4497 * mono_metadata_interfaces_from_typedef:
4498 * \param meta metadata context
4499 * \param index typedef token
4500 * \param count Out parameter used to store the number of interfaces
4502 * The array of interfaces that the \p index typedef token implements is returned in
4503 * \p interfaces. The number of elements in the array is returned in \p count. The returned
4504 * array is allocated with \c g_malloc and the caller must free it.
4506 * LOCKING: Acquires the loader lock .
4508 * \returns the interface array on success, NULL on failure.
4511 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4514 MonoClass **interfaces = NULL;
4517 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4518 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4526 * mono_metadata_nested_in_typedef:
4527 * \param meta metadata context
4528 * \param index typedef token
4529 * \returns the 1-based index into the TypeDef table of the type
4530 * where the type described by \p index is nested.
4531 * Returns 0 if \p index describes a non-nested type.
4534 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4536 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4542 loc.idx = mono_metadata_token_index (index);
4543 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4546 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4549 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4550 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4554 * mono_metadata_nesting_typedef:
4555 * \param meta metadata context
4556 * \param index typedef token
4557 * \returns the 1-based index into the \c TypeDef table of the first type
4558 * that is nested inside the type described by \p index. The search starts at
4559 * \p start_index. Returns 0 if no such type is found.
4562 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4564 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4566 guint32 class_index = mono_metadata_token_index (index);
4571 start = start_index;
4573 while (start <= tdef->rows) {
4574 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4580 if (start > tdef->rows)
4587 * mono_metadata_packing_from_typedef:
4588 * \param meta metadata context
4589 * \param index token representing a type
4590 * \returns the info stored in the \c ClassLayout table for the given typedef token
4591 * into the \p packing and \p size pointers.
4592 * Returns 0 if the info is not found.
4595 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4597 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4599 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4604 loc.idx = mono_metadata_token_index (index);
4605 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4608 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4611 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4613 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4615 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4617 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4618 return loc.result + 1;
4622 * mono_metadata_custom_attrs_from_index:
4623 * \param meta metadata context
4624 * \param index token representing the parent
4625 * \returns: the 1-based index into the \c CustomAttribute table of the first
4626 * attribute which belongs to the metadata object described by \p index.
4627 * Returns 0 if no such attribute is found.
4630 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4632 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4639 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4642 /* FIXME: Index translation */
4644 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4647 /* Find the first entry by searching backwards */
4648 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4651 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4652 return loc.result + 1;
4656 * mono_metadata_declsec_from_index:
4657 * \param meta metadata context
4658 * \param index token representing the parent
4659 * \returns the 0-based index into the \c DeclarativeSecurity table of the first
4660 * attribute which belongs to the metadata object described by \p index.
4661 * Returns \c -1 if no such attribute is found.
4664 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4666 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4673 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4676 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4679 /* Find the first entry by searching backwards */
4680 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4687 * mono_metadata_localscope_from_methoddef:
4688 * @meta: metadata context
4689 * @index: methoddef index
4691 * Returns: the 1-based index into the LocalScope table of the first
4692 * scope which belongs to the method described by @index.
4693 * Returns 0 if no such row is found.
4696 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index)
4698 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_LOCALSCOPE];
4705 loc.col_idx = MONO_LOCALSCOPE_METHOD;
4708 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4711 /* Find the first entry by searching backwards */
4712 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_LOCALSCOPE_METHOD) == index))
4715 return loc.result + 1;
4720 mono_backtrace (int limit)
4725 backtrace (array, limit);
4726 names = backtrace_symbols (array, limit);
4727 for (i =0; i < limit; ++i) {
4728 g_print ("\t%s\n", names [i]);
4734 static int i8_align;
4737 * mono_type_set_alignment:
4739 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4740 * This should only be used in AOT mode since the resulting layout will not match the
4744 mono_type_set_alignment (MonoTypeEnum type, int align)
4746 /* Support only a few types whose alignment is abi dependent */
4752 g_assert_not_reached ();
4759 * \param t the type to return the size of
4760 * \returns The number of bytes required to hold an instance of this
4764 mono_type_size (MonoType *t, int *align)
4766 MonoTypeEnum simple_type;
4773 *align = MONO_ABI_ALIGNOF (gpointer);
4774 return MONO_ABI_SIZEOF (gpointer);
4777 simple_type = t->type;
4779 switch (simple_type) {
4780 case MONO_TYPE_VOID:
4783 case MONO_TYPE_BOOLEAN:
4784 *align = MONO_ABI_ALIGNOF (gint8);
4788 *align = MONO_ABI_ALIGNOF (gint8);
4790 case MONO_TYPE_CHAR:
4793 *align = MONO_ABI_ALIGNOF (gint16);
4797 *align = MONO_ABI_ALIGNOF (gint32);
4800 *align = MONO_ABI_ALIGNOF (float);
4804 *align = MONO_ABI_ALIGNOF (gint64);
4807 *align = MONO_ABI_ALIGNOF (double);
4811 *align = MONO_ABI_ALIGNOF (gpointer);
4812 return MONO_ABI_SIZEOF (gpointer);
4813 case MONO_TYPE_VALUETYPE: {
4814 if (t->data.klass->enumtype)
4815 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4817 return mono_class_value_size (t->data.klass, (guint32*)align);
4819 case MONO_TYPE_STRING:
4820 case MONO_TYPE_OBJECT:
4821 case MONO_TYPE_CLASS:
4822 case MONO_TYPE_SZARRAY:
4824 case MONO_TYPE_FNPTR:
4825 case MONO_TYPE_ARRAY:
4826 *align = MONO_ABI_ALIGNOF (gpointer);
4827 return MONO_ABI_SIZEOF (gpointer);
4828 case MONO_TYPE_TYPEDBYREF:
4829 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4830 case MONO_TYPE_GENERICINST: {
4831 MonoGenericClass *gclass = t->data.generic_class;
4832 MonoClass *container_class = gclass->container_class;
4834 // g_assert (!gclass->inst->is_open);
4836 if (container_class->valuetype) {
4837 if (container_class->enumtype)
4838 return mono_type_size (mono_class_enum_basetype (container_class), align);
4840 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4842 *align = MONO_ABI_ALIGNOF (gpointer);
4843 return MONO_ABI_SIZEOF (gpointer);
4847 case MONO_TYPE_MVAR:
4848 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4849 *align = MONO_ABI_ALIGNOF (gpointer);
4850 return MONO_ABI_SIZEOF (gpointer);
4852 /* The gparam can only match types given by gshared_constraint */
4853 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4857 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4863 * mono_type_stack_size:
4864 * \param t the type to return the size it uses on the stack
4865 * \returns The number of bytes required to hold an instance of this
4866 * type on the runtime stack
4869 mono_type_stack_size (MonoType *t, int *align)
4871 return mono_type_stack_size_internal (t, align, FALSE);
4875 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4878 MonoTypeEnum simple_type;
4879 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4880 int stack_slot_size = MONO_ABI_SIZEOF (gpointer);
4881 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4882 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4883 int stack_slot_size = SIZEOF_REGISTER;
4884 int stack_slot_align = SIZEOF_REGISTER;
4887 g_assert (t != NULL);
4893 *align = stack_slot_align;
4894 return stack_slot_size;
4897 simple_type = t->type;
4898 switch (simple_type) {
4899 case MONO_TYPE_BOOLEAN:
4900 case MONO_TYPE_CHAR:
4909 case MONO_TYPE_STRING:
4910 case MONO_TYPE_OBJECT:
4911 case MONO_TYPE_CLASS:
4912 case MONO_TYPE_SZARRAY:
4914 case MONO_TYPE_FNPTR:
4915 case MONO_TYPE_ARRAY:
4916 *align = stack_slot_align;
4917 return stack_slot_size;
4919 case MONO_TYPE_MVAR:
4920 g_assert (allow_open);
4921 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4922 *align = stack_slot_align;
4923 return stack_slot_size;
4925 /* The gparam can only match types given by gshared_constraint */
4926 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4928 case MONO_TYPE_TYPEDBYREF:
4929 *align = stack_slot_align;
4930 return stack_slot_size * 3;
4932 *align = MONO_ABI_ALIGNOF (float);
4933 return sizeof (float);
4936 *align = MONO_ABI_ALIGNOF (gint64);
4937 return sizeof (gint64);
4939 *align = MONO_ABI_ALIGNOF (double);
4940 return sizeof (double);
4941 case MONO_TYPE_VALUETYPE: {
4944 if (t->data.klass->enumtype)
4945 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4947 size = mono_class_value_size (t->data.klass, (guint32*)align);
4949 *align = *align + stack_slot_align - 1;
4950 *align &= ~(stack_slot_align - 1);
4952 size += stack_slot_size - 1;
4953 size &= ~(stack_slot_size - 1);
4958 case MONO_TYPE_GENERICINST: {
4959 MonoGenericClass *gclass = t->data.generic_class;
4960 MonoClass *container_class = gclass->container_class;
4963 g_assert (!gclass->context.class_inst->is_open);
4965 if (container_class->valuetype) {
4966 if (container_class->enumtype)
4967 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4969 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4971 *align = *align + stack_slot_align - 1;
4972 *align &= ~(stack_slot_align - 1);
4974 size += stack_slot_size - 1;
4975 size &= ~(stack_slot_size - 1);
4980 *align = stack_slot_align;
4981 return stack_slot_size;
4985 g_error ("type 0x%02x unknown", t->type);
4991 mono_type_generic_inst_is_valuetype (MonoType *type)
4993 g_assert (type->type == MONO_TYPE_GENERICINST);
4994 return type->data.generic_class->container_class->valuetype;
4998 * mono_metadata_generic_class_is_valuetype:
5001 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
5003 return gclass->container_class->valuetype;
5007 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
5009 MonoGenericInst *i1 = g1->context.class_inst;
5010 MonoGenericInst *i2 = g2->context.class_inst;
5012 if (g1->is_dynamic != g2->is_dynamic)
5014 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
5016 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
5018 return g1->is_tb_open == g2->is_tb_open;
5022 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
5024 MonoGenericInst *i1 = g1->context.class_inst;
5025 MonoGenericInst *i2 = mono_class_get_generic_container (c2)->context.class_inst;
5027 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
5029 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
5031 return !g1->is_tb_open;
5035 mono_metadata_generic_context_hash (const MonoGenericContext *context)
5037 /* FIXME: check if this seed is good enough */
5038 guint hash = 0xc01dfee7;
5039 if (context->class_inst)
5040 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
5041 if (context->method_inst)
5042 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
5047 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
5049 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
5053 * mono_metadata_str_hash:
5055 * This should be used instead of g_str_hash for computing hash codes visible
5056 * outside this module, since g_str_hash () is not guaranteed to be stable
5057 * (its not the same in eglib for example).
5060 mono_metadata_str_hash (gconstpointer v1)
5062 /* Same as g_str_hash () in glib */
5063 char *p = (char *) v1;
5068 hash = (hash << 5) - hash + *p;
5075 * mono_metadata_type_hash:
5077 * Computes a hash value for \p t1 to be used in \c GHashTable.
5078 * The returned hash is guaranteed to be the same across executions.
5081 mono_metadata_type_hash (MonoType *t1)
5083 guint hash = t1->type;
5085 hash |= t1->byref << 6; /* do not collide with t1->type values */
5087 case MONO_TYPE_VALUETYPE:
5088 case MONO_TYPE_CLASS:
5089 case MONO_TYPE_SZARRAY: {
5090 MonoClass *klass = t1->data.klass;
5092 * Dynamic classes must not be hashed on their type since it can change
5093 * during runtime. For example, if we hash a reference type that is
5094 * later made into a valuetype.
5096 * This is specially problematic with generic instances since they are
5097 * inserted in a bunch of hash tables before been finished.
5099 if (image_is_dynamic (klass->image))
5100 return (t1->byref << 6) | mono_metadata_str_hash (klass->name);
5101 return ((hash << 5) - hash) ^ mono_metadata_str_hash (klass->name);
5104 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
5105 case MONO_TYPE_ARRAY:
5106 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
5107 case MONO_TYPE_GENERICINST:
5108 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
5110 case MONO_TYPE_MVAR:
5111 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
5118 mono_metadata_generic_param_hash (MonoGenericParam *p)
5121 MonoGenericParamInfo *info;
5123 hash = (mono_generic_param_num (p) << 2);
5124 if (p->gshared_constraint)
5125 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
5126 info = mono_generic_param_info (p);
5127 /* Can't hash on the owner klass/method, since those might not be set when this is called */
5129 hash = ((hash << 5) - hash) ^ info->token;
5134 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
5138 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
5140 if (p1->gshared_constraint && p2->gshared_constraint) {
5141 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
5144 if (p1->gshared_constraint != p2->gshared_constraint)
5149 * We have to compare the image as well because if we didn't,
5150 * the generic_inst_cache lookup wouldn't care about the image
5151 * of generic params, so what could happen is that a generic
5152 * inst with params from image A is put into the cache, then
5153 * image B gets that generic inst from the cache, image A is
5154 * unloaded, so the inst is deleted, but image B still retains
5157 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2))
5161 * If `signature_only' is true, we're comparing two (method) signatures.
5162 * In this case, the owner of two type parameters doesn't need to match.
5165 return signature_only;
5169 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
5171 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
5175 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
5179 if (mono_class_is_ginst (c1) && mono_class_is_ginst (c2))
5180 return _mono_metadata_generic_class_equal (mono_class_get_generic_class (c1), mono_class_get_generic_class (c2), signature_only);
5181 if (mono_class_is_ginst (c1) && mono_class_is_gtd (c2))
5182 return _mono_metadata_generic_class_container_equal (mono_class_get_generic_class (c1), c2, signature_only);
5183 if (mono_class_is_gtd (c1) && mono_class_is_ginst (c2))
5184 return _mono_metadata_generic_class_container_equal (mono_class_get_generic_class (c2), c1, signature_only);
5185 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
5186 return mono_metadata_generic_param_equal_internal (
5187 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
5188 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
5189 return mono_metadata_generic_param_equal_internal (
5190 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
5191 if (signature_only &&
5192 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
5193 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
5194 if (signature_only &&
5195 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
5196 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
5201 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
5203 gpointer iter1 = 0, iter2 = 0;
5207 if (s1->call_convention != s2->call_convention)
5209 if (s1->sentinelpos != s2->sentinelpos)
5211 if (s1->hasthis != s2->hasthis)
5213 if (s1->explicit_this != s2->explicit_this)
5215 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
5217 if (s1->param_count != s2->param_count)
5221 MonoType *t1 = mono_signature_get_params (s1, &iter1);
5222 MonoType *t2 = mono_signature_get_params (s2, &iter2);
5224 if (t1 == NULL || t2 == NULL)
5226 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
5232 * mono_metadata_type_equal:
5235 * @signature_only: If true, treat ginsts as equal which are instantiated separately but have equal positional value
5237 * Determine if @t1 and @t2 represent the same type.
5238 * Returns: #TRUE if @t1 and @t2 are equal.
5241 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
5243 if (t1->type != t2->type || t1->byref != t2->byref)
5247 case MONO_TYPE_VOID:
5248 case MONO_TYPE_BOOLEAN:
5249 case MONO_TYPE_CHAR:
5260 case MONO_TYPE_STRING:
5263 case MONO_TYPE_OBJECT:
5264 case MONO_TYPE_TYPEDBYREF:
5266 case MONO_TYPE_VALUETYPE:
5267 case MONO_TYPE_CLASS:
5268 case MONO_TYPE_SZARRAY:
5269 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
5271 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
5272 case MONO_TYPE_ARRAY:
5273 if (t1->data.array->rank != t2->data.array->rank)
5275 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
5276 case MONO_TYPE_GENERICINST:
5277 return _mono_metadata_generic_class_equal (
5278 t1->data.generic_class, t2->data.generic_class, signature_only);
5280 return mono_metadata_generic_param_equal_internal (
5281 t1->data.generic_param, t2->data.generic_param, signature_only);
5282 case MONO_TYPE_MVAR:
5283 return mono_metadata_generic_param_equal_internal (
5284 t1->data.generic_param, t2->data.generic_param, signature_only);
5285 case MONO_TYPE_FNPTR:
5286 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
5288 g_error ("implement type compare for %0x!", t1->type);
5296 * mono_metadata_type_equal:
5299 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
5301 return do_mono_metadata_type_equal (t1, t2, FALSE);
5305 * mono_metadata_type_equal_full:
5307 * \param t2 another type
5308 * \param signature_only if signature only comparison should be made
5310 * Determine if \p t1 and \p t2 are signature compatible if \p signature_only is TRUE, otherwise
5311 * behaves the same way as mono_metadata_type_equal.
5312 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
5313 * \returns TRUE if \p t1 and \p t2 are equal taking \p signature_only into account.
5316 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
5318 return do_mono_metadata_type_equal (t1, t2, signature_only);
5322 * mono_metadata_signature_equal:
5323 * \param sig1 a signature
5324 * \param sig2 another signature
5326 * Determine if \p sig1 and \p sig2 represent the same signature, with the
5327 * same number of arguments and the same types.
5328 * \returns TRUE if \p sig1 and \p sig2 are equal.
5331 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
5335 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
5338 if (sig1->generic_param_count != sig2->generic_param_count)
5342 * We're just comparing the signatures of two methods here:
5344 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
5345 * U and V are equal here.
5347 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
5350 for (i = 0; i < sig1->param_count; i++) {
5351 MonoType *p1 = sig1->params[i];
5352 MonoType *p2 = sig2->params[i];
5354 /* if (p1->attrs != p2->attrs)
5357 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
5361 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
5367 * mono_metadata_type_dup:
5368 * \param image image to alloc memory from
5369 * \param original type to duplicate
5370 * \returns copy of type allocated from the image's mempool (or from the heap, if \p image is null).
5373 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
5376 int sizeof_o = MONO_SIZEOF_TYPE;
5378 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
5380 r = image ? (MonoType *)mono_image_alloc0 (image, sizeof_o) : (MonoType *)g_malloc (sizeof_o);
5382 memcpy (r, o, sizeof_o);
5384 if (o->type == MONO_TYPE_PTR) {
5385 r->data.type = mono_metadata_type_dup (image, o->data.type);
5386 } else if (o->type == MONO_TYPE_ARRAY) {
5387 r->data.array = mono_dup_array_type (image, o->data.array);
5388 } else if (o->type == MONO_TYPE_FNPTR) {
5389 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
5390 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
5396 * mono_signature_hash:
5399 mono_signature_hash (MonoMethodSignature *sig)
5401 guint i, res = sig->ret->type;
5403 for (i = 0; i < sig->param_count; i++)
5404 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5410 * mono_metadata_encode_value:
5411 * @value: value to encode
5412 * @buf: buffer where to write the compressed representation
5413 * @endbuf: pointer updated to point at the end of the encoded output
5415 * Encodes the value @value in the compressed representation used
5416 * in metadata and stores the result in @buf. @buf needs to be big
5417 * enough to hold the data (4 bytes).
5420 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5426 else if (value < 0x4000) {
5427 p [0] = 0x80 | (value >> 8);
5428 p [1] = value & 0xff;
5431 p [0] = (value >> 24) | 0xc0;
5432 p [1] = (value >> 16) & 0xff;
5433 p [2] = (value >> 8) & 0xff;
5434 p [3] = value & 0xff;
5442 * mono_metadata_field_info:
5443 * \param meta the Image the field is defined in
5444 * \param index the index in the field table representing the field
5445 * \param offset a pointer to an integer where to store the offset that may have been specified for the field in a FieldLayout table
5446 * \param rva a pointer to the RVA of the field data in the image that may have been defined in a \c FieldRVA table
5447 * \param marshal_spec a pointer to the marshal spec that may have been defined for the field in a \c FieldMarshal table.
5449 * Gather info for field \p index that may have been defined in the \c FieldLayout,
5450 * \c FieldRVA and \c FieldMarshal tables.
5451 * Either of \p offset, \p rva and \p marshal_spec can be NULL if you're not interested
5455 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5456 MonoMarshalSpec **marshal_spec)
5458 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5462 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5463 MonoMarshalSpec **marshal_spec)
5465 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5469 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5470 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5472 MonoTableInfo *tdef;
5475 loc.idx = index + 1;
5476 if (meta->uncompressed_metadata)
5477 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5480 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5482 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5485 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5486 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5488 *offset = (guint32)-1;
5492 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5494 loc.col_idx = MONO_FIELD_RVA_FIELD;
5497 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5499 * LAMESPEC: There is no signature, no nothing, just the raw data.
5501 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5509 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5510 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5517 * mono_metadata_get_constant_index:
5518 * \param meta the Image the field is defined in
5519 * \param index the token that may have a row defined in the constants table
5520 * \param hint possible position for the row
5522 * \p token must be a \c FieldDef, \c ParamDef or \c PropertyDef token.
5524 * \returns the index into the \c Constants table or 0 if not found.
5527 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5529 MonoTableInfo *tdef;
5531 guint32 index = mono_metadata_token_index (token);
5533 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5534 index <<= MONO_HASCONSTANT_BITS;
5535 switch (mono_metadata_token_table (token)) {
5536 case MONO_TABLE_FIELD:
5537 index |= MONO_HASCONSTANT_FIEDDEF;
5539 case MONO_TABLE_PARAM:
5540 index |= MONO_HASCONSTANT_PARAM;
5542 case MONO_TABLE_PROPERTY:
5543 index |= MONO_HASCONSTANT_PROPERTY;
5546 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5550 loc.col_idx = MONO_CONSTANT_PARENT;
5553 /* FIXME: Index translation */
5555 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5558 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5559 return loc.result + 1;
5565 * mono_metadata_events_from_typedef:
5566 * \param meta metadata context
5567 * \param index 0-based index (in the \c TypeDef table) describing a type
5568 * \returns the 0-based index in the \c Event table for the events in the
5569 * type. The last event that belongs to the type (plus 1) is stored
5570 * in the \p end_idx pointer.
5573 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5577 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5585 loc.col_idx = MONO_EVENT_MAP_PARENT;
5586 loc.idx = index + 1;
5588 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5591 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5592 if (loc.result + 1 < tdef->rows) {
5593 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5595 end = meta->tables [MONO_TABLE_EVENT].rows;
5603 * mono_metadata_methods_from_event:
5604 * \param meta metadata context
5605 * \param index 0-based index (in the \c Event table) describing a event
5606 * \returns the 0-based index in the \c MethodDef table for the methods in the
5607 * event. The last method that belongs to the event (plus 1) is stored
5608 * in the \p end_idx pointer.
5611 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5615 guint32 cols [MONO_METHOD_SEMA_SIZE];
5616 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5622 if (meta->uncompressed_metadata)
5623 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5626 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5627 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5629 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5634 * We may end up in the middle of the rows...
5637 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5643 while (end < msemt->rows) {
5644 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5645 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5654 * mono_metadata_properties_from_typedef:
5655 * \param meta metadata context
5656 * \param index 0-based index (in the \c TypeDef table) describing a type
5657 * \returns the 0-based index in the \c Property table for the properties in the
5658 * type. The last property that belongs to the type (plus 1) is stored
5659 * in the \p end_idx pointer.
5662 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5666 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5674 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5675 loc.idx = index + 1;
5677 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5680 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5681 if (loc.result + 1 < tdef->rows) {
5682 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5684 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5692 * mono_metadata_methods_from_property:
5693 * \param meta metadata context
5694 * \param index 0-based index (in the \c PropertyDef table) describing a property
5695 * \returns the 0-based index in the \c MethodDef table for the methods in the
5696 * property. The last method that belongs to the property (plus 1) is stored
5697 * in the \p end_idx pointer.
5700 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5704 guint32 cols [MONO_METHOD_SEMA_SIZE];
5705 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5711 if (meta->uncompressed_metadata)
5712 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5715 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5716 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5718 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5723 * We may end up in the middle of the rows...
5726 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5732 while (end < msemt->rows) {
5733 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5734 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5743 * mono_metadata_implmap_from_method:
5746 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5749 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5754 /* No index translation seems to be needed */
5757 loc.col_idx = MONO_IMPLMAP_MEMBER;
5758 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5760 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5763 return loc.result + 1;
5767 * mono_type_create_from_typespec:
5768 * \param image context where the image is created
5769 * \param type_spec typespec token
5770 * \deprecated use \c mono_type_create_from_typespec_checked that has proper error handling
5772 * Creates a \c MonoType representing the \c TypeSpec indexed by the \p type_spec
5776 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5779 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5781 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5786 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5789 guint32 idx = mono_metadata_token_index (type_spec);
5791 guint32 cols [MONO_TYPESPEC_SIZE];
5793 MonoType *type, *type2;
5797 type = (MonoType *)mono_conc_hashtable_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5801 t = &image->tables [MONO_TABLE_TYPESPEC];
5803 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5804 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5806 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5807 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5811 mono_metadata_decode_value (ptr, &ptr);
5813 type = mono_metadata_parse_type_checked (image, NULL, 0, TRUE, ptr, &ptr, error);
5817 type2 = mono_metadata_type_dup (image, type);
5818 mono_metadata_free_type (type);
5820 mono_image_lock (image);
5822 /* We might leak some data in the image mempool if found */
5823 type = mono_conc_hashtable_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5827 mono_image_unlock (image);
5834 mono_image_strndup (MonoImage *image, const char *data, guint len)
5838 return g_strndup (data, len);
5839 res = (char *)mono_image_alloc (image, len + 1);
5840 memcpy (res, data, len);
5846 * mono_metadata_parse_marshal_spec:
5849 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5851 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5855 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5856 * PARENT_IMAGE is the image containing the marshal spec.
5859 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5861 MonoMarshalSpec *res;
5863 const char *start = ptr;
5865 /* fixme: this is incomplete, but I cant find more infos in the specs */
5868 res = (MonoMarshalSpec *)mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5870 res = g_new0 (MonoMarshalSpec, 1);
5872 len = mono_metadata_decode_value (ptr, &ptr);
5873 res->native = (MonoMarshalNative)*ptr++;
5875 if (res->native == MONO_NATIVE_LPARRAY) {
5876 res->data.array_data.param_num = -1;
5877 res->data.array_data.num_elem = -1;
5878 res->data.array_data.elem_mult = -1;
5880 if (ptr - start <= len)
5881 res->data.array_data.elem_type = (MonoMarshalNative)*ptr++;
5882 if (ptr - start <= len)
5883 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5884 if (ptr - start <= len)
5885 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5886 if (ptr - start <= len) {
5888 * LAMESPEC: Older spec versions say this parameter comes before
5889 * num_elem. Never spec versions don't talk about elem_mult at
5890 * all, but csc still emits it, and it is used to distinguish
5891 * between param_num being 0, and param_num being omitted.
5892 * So if (param_num == 0) && (num_elem > 0), then
5893 * elem_mult == 0 -> the array size is num_elem
5894 * elem_mult == 1 -> the array size is @param_num + num_elem
5896 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5900 if (res->native == MONO_NATIVE_BYVALTSTR) {
5901 if (ptr - start <= len)
5902 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5905 if (res->native == MONO_NATIVE_BYVALARRAY) {
5906 if (ptr - start <= len)
5907 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5910 if (res->native == MONO_NATIVE_CUSTOM) {
5911 /* skip unused type guid */
5912 len = mono_metadata_decode_value (ptr, &ptr);
5914 /* skip unused native type name */
5915 len = mono_metadata_decode_value (ptr, &ptr);
5917 /* read custom marshaler type name */
5918 len = mono_metadata_decode_value (ptr, &ptr);
5919 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5921 /* read cookie string */
5922 len = mono_metadata_decode_value (ptr, &ptr);
5923 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5924 res->data.custom_data.image = parent_image;
5927 if (res->native == MONO_NATIVE_SAFEARRAY) {
5928 res->data.safearray_data.elem_type = (MonoMarshalVariant)0;
5929 res->data.safearray_data.num_elem = 0;
5930 if (ptr - start <= len)
5931 res->data.safearray_data.elem_type = (MonoMarshalVariant)*ptr++;
5932 if (ptr - start <= len)
5933 res->data.safearray_data.num_elem = *ptr++;
5939 * mono_metadata_free_marshal_spec:
5942 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5944 if (spec->native == MONO_NATIVE_CUSTOM) {
5945 g_free (spec->data.custom_data.custom_name);
5946 g_free (spec->data.custom_data.cookie);
5952 * mono_type_to_unmanaged:
5953 * The value pointed to by \p conv will contain the kind of marshalling required for this
5954 * particular type one of the \c MONO_MARSHAL_CONV_ enumeration values.
5955 * \returns A \c MonoMarshalNative enumeration value (<code>MONO_NATIVE_</code>) value
5956 * describing the underlying native reprensetation of the type.
5959 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5960 gboolean unicode, MonoMarshalConv *conv)
5962 MonoMarshalConv dummy_conv;
5968 *conv = MONO_MARSHAL_CONV_NONE;
5971 return MONO_NATIVE_UINT;
5975 case MONO_TYPE_BOOLEAN:
5977 switch (mspec->native) {
5978 case MONO_NATIVE_VARIANTBOOL:
5979 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5980 return MONO_NATIVE_VARIANTBOOL;
5981 case MONO_NATIVE_BOOLEAN:
5982 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5983 return MONO_NATIVE_BOOLEAN;
5984 case MONO_NATIVE_I1:
5985 case MONO_NATIVE_U1:
5986 return mspec->native;
5988 g_error ("cant marshal bool to native type %02x", mspec->native);
5991 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5992 return MONO_NATIVE_BOOLEAN;
5993 case MONO_TYPE_CHAR:
5995 switch (mspec->native) {
5996 case MONO_NATIVE_U2:
5997 case MONO_NATIVE_U1:
5998 return mspec->native;
6000 g_error ("cant marshal char to native type %02x", mspec->native);
6003 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
6004 case MONO_TYPE_I1: return MONO_NATIVE_I1;
6005 case MONO_TYPE_U1: return MONO_NATIVE_U1;
6006 case MONO_TYPE_I2: return MONO_NATIVE_I2;
6007 case MONO_TYPE_U2: return MONO_NATIVE_U2;
6008 case MONO_TYPE_I4: return MONO_NATIVE_I4;
6009 case MONO_TYPE_U4: return MONO_NATIVE_U4;
6010 case MONO_TYPE_I8: return MONO_NATIVE_I8;
6011 case MONO_TYPE_U8: return MONO_NATIVE_U8;
6012 case MONO_TYPE_R4: return MONO_NATIVE_R4;
6013 case MONO_TYPE_R8: return MONO_NATIVE_R8;
6014 case MONO_TYPE_STRING:
6016 switch (mspec->native) {
6017 case MONO_NATIVE_BSTR:
6018 *conv = MONO_MARSHAL_CONV_STR_BSTR;
6019 return MONO_NATIVE_BSTR;
6020 case MONO_NATIVE_LPSTR:
6021 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
6022 return MONO_NATIVE_LPSTR;
6023 case MONO_NATIVE_LPWSTR:
6024 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
6025 return MONO_NATIVE_LPWSTR;
6026 case MONO_NATIVE_LPTSTR:
6027 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
6028 return MONO_NATIVE_LPTSTR;
6029 case MONO_NATIVE_ANSIBSTR:
6030 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
6031 return MONO_NATIVE_ANSIBSTR;
6032 case MONO_NATIVE_TBSTR:
6033 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
6034 return MONO_NATIVE_TBSTR;
6035 case MONO_NATIVE_UTF8STR:
6036 *conv = MONO_MARSHAL_CONV_STR_UTF8STR;
6037 return MONO_NATIVE_UTF8STR;
6038 case MONO_NATIVE_BYVALTSTR:
6040 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
6042 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
6043 return MONO_NATIVE_BYVALTSTR;
6045 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);
6049 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
6050 return MONO_NATIVE_LPWSTR;
6053 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
6054 return MONO_NATIVE_LPSTR;
6056 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
6057 case MONO_TYPE_VALUETYPE: /*FIXME*/
6058 if (type->data.klass->enumtype) {
6059 t = mono_class_enum_basetype (type->data.klass)->type;
6062 if (type->data.klass == mono_defaults.handleref_class){
6063 *conv = MONO_MARSHAL_CONV_HANDLEREF;
6064 return MONO_NATIVE_INT;
6066 return MONO_NATIVE_STRUCT;
6067 case MONO_TYPE_SZARRAY:
6068 case MONO_TYPE_ARRAY:
6070 switch (mspec->native) {
6071 case MONO_NATIVE_BYVALARRAY:
6072 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
6073 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
6075 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
6076 return MONO_NATIVE_BYVALARRAY;
6077 case MONO_NATIVE_SAFEARRAY:
6078 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
6079 return MONO_NATIVE_SAFEARRAY;
6080 case MONO_NATIVE_LPARRAY:
6081 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
6082 return MONO_NATIVE_LPARRAY;
6084 g_error ("cant marshal array as native type %02x", mspec->native);
6088 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
6089 return MONO_NATIVE_LPARRAY;
6090 case MONO_TYPE_I: return MONO_NATIVE_INT;
6091 case MONO_TYPE_U: return MONO_NATIVE_UINT;
6092 case MONO_TYPE_CLASS:
6093 case MONO_TYPE_OBJECT: {
6094 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
6096 switch (mspec->native) {
6097 case MONO_NATIVE_STRUCT:
6098 return MONO_NATIVE_STRUCT;
6099 case MONO_NATIVE_CUSTOM:
6100 return MONO_NATIVE_CUSTOM;
6101 case MONO_NATIVE_INTERFACE:
6102 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
6103 return MONO_NATIVE_INTERFACE;
6104 case MONO_NATIVE_IDISPATCH:
6105 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
6106 return MONO_NATIVE_IDISPATCH;
6107 case MONO_NATIVE_IUNKNOWN:
6108 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
6109 return MONO_NATIVE_IUNKNOWN;
6110 case MONO_NATIVE_FUNC:
6111 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
6112 type->data.klass == mono_defaults.delegate_class ||
6113 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
6114 *conv = MONO_MARSHAL_CONV_DEL_FTN;
6115 return MONO_NATIVE_FUNC;
6119 g_error ("cant marshal object as native type %02x", mspec->native);
6122 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
6123 type->data.klass == mono_defaults.delegate_class ||
6124 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
6125 *conv = MONO_MARSHAL_CONV_DEL_FTN;
6126 return MONO_NATIVE_FUNC;
6128 if (mono_class_try_get_safehandle_class () && type->data.klass == mono_class_try_get_safehandle_class ()){
6129 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
6130 return MONO_NATIVE_INT;
6132 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
6133 return MONO_NATIVE_STRUCT;
6135 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
6136 case MONO_TYPE_GENERICINST:
6137 type = &type->data.generic_class->container_class->byval_arg;
6140 case MONO_TYPE_TYPEDBYREF:
6142 g_error ("type 0x%02x not handled in marshal", t);
6144 return MONO_NATIVE_MAX;
6148 * mono_metadata_get_marshal_info:
6151 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
6154 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
6160 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
6161 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
6163 /* FIXME: Index translation */
6165 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6168 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
6172 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
6174 MonoMethod *result = NULL;
6175 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
6179 switch (tok & MONO_METHODDEFORREF_MASK) {
6180 case MONO_METHODDEFORREF_METHODDEF:
6181 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
6183 case MONO_METHODDEFORREF_METHODREF:
6184 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
6187 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
6194 * mono_class_get_overrides_full:
6196 * Return the method overrides belonging to class @type_token in @overrides, and
6197 * the number of overrides in @num_overrides.
6199 * Returns: TRUE on success, FALSE on failure.
6202 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
6203 MonoGenericContext *generic_context)
6207 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
6210 guint32 cols [MONO_METHODIMPL_SIZE];
6211 MonoMethod **result;
6222 loc.col_idx = MONO_METHODIMPL_CLASS;
6223 loc.idx = mono_metadata_token_index (type_token);
6225 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6231 * We may end up in the middle of the rows...
6234 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
6239 while (end < tdef->rows) {
6240 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
6246 result = g_new (MonoMethod*, num * 2);
6247 for (i = 0; i < num; ++i) {
6250 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
6251 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6256 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
6257 method = method_from_method_def_or_ref (
6258 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
6259 if (method == NULL) {
6260 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6263 result [i * 2] = method;
6264 method = method_from_method_def_or_ref (
6265 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
6266 if (method == NULL) {
6267 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6270 result [i * 2 + 1] = method;
6273 *overrides = result;
6275 *num_overrides = num;
6280 * mono_guid_to_string:
6282 * Converts a 16 byte Microsoft GUID to the standard string representation.
6285 mono_guid_to_string (const guint8 *guid)
6287 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
6288 guid[3], guid[2], guid[1], guid[0],
6292 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6296 * mono_guid_to_string_minimal:
6298 * Converts a 16 byte Microsoft GUID to lower case no '-' representation..
6301 mono_guid_to_string_minimal (const guint8 *guid)
6303 return g_strdup_printf ("%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
6304 guid[3], guid[2], guid[1], guid[0],
6308 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6311 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
6313 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
6314 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
6315 guint32 i, token, found;
6316 MonoClass *klass, **res;
6317 GSList *cons = NULL, *tmp;
6318 MonoGenericContext *context = &container->context;
6322 *constraints = NULL;
6324 for (i = 0; i < tdef->rows; ++i) {
6325 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
6326 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
6327 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
6328 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
6330 g_slist_free (cons);
6333 cons = g_slist_append (cons, klass);
6336 /* contiguous list finished */
6343 res = (MonoClass **)mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
6344 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
6345 res [i] = (MonoClass *)tmp->data;
6347 g_slist_free (cons);
6353 * mono_metadata_get_generic_param_row:
6356 * @token: TypeOrMethodDef token, owner for GenericParam
6357 * @owner: coded token, set on return
6359 * Returns: 1-based row-id in the GenericParam table whose
6360 * owner is @token. 0 if not found.
6363 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
6365 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6372 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
6373 *owner = MONO_TYPEORMETHOD_TYPE;
6374 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6375 *owner = MONO_TYPEORMETHOD_METHOD;
6377 g_error ("wrong token %x to get_generic_param_row", token);
6380 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
6383 loc.col_idx = MONO_GENERICPARAM_OWNER;
6386 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6389 /* Find the first entry by searching backwards */
6390 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
6393 return loc.result + 1;
6397 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
6400 return mono_metadata_get_generic_param_row (image, token, &owner);
6404 * Memory is allocated from IMAGE's mempool.
6407 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
6408 MonoGenericContainer *container, MonoError *error)
6411 guint32 start_row, i, owner;
6414 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6416 for (i = 0; i < container->type_argc; i++) {
6417 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6425 * mono_metadata_load_generic_params:
6427 * Load the type parameters from the type or method definition @token.
6429 * Use this method after parsing a type or method definition to figure out whether it's a generic
6430 * type / method. When parsing a method definition, @parent_container points to the generic container
6431 * of the current class, if any.
6433 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6434 * creating the type.
6436 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6438 * LOCKING: Acquires the loader lock
6441 MonoGenericContainer *
6442 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6444 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6445 guint32 cols [MONO_GENERICPARAM_SIZE];
6446 guint32 i, owner = 0, n;
6447 MonoGenericContainer *container;
6448 MonoGenericParamFull *params;
6449 MonoGenericContext *context;
6451 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6453 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6456 container = (MonoGenericContainer *)mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6457 container->owner.image = image; // Temporarily mark as anonymous, but this will be overriden by caller
6458 container->is_anonymous = TRUE;
6461 params = (MonoGenericParamFull *)g_realloc (params, sizeof (MonoGenericParamFull) * n);
6462 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6463 params [n - 1].param.owner = container;
6464 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6465 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6466 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6467 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6468 if (params [n - 1].param.num != n - 1)
6469 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6470 if (++i > tdef->rows)
6472 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6473 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6475 container->type_argc = n;
6476 container->type_params = (MonoGenericParamFull *)mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6477 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6479 container->parent = parent_container;
6481 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6482 container->is_method = 1;
6484 g_assert (container->parent == NULL || container->is_method);
6486 context = &container->context;
6487 if (container->is_method) {
6488 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6489 context->method_inst = mono_get_shared_generic_inst (container);
6491 context->class_inst = mono_get_shared_generic_inst (container);
6498 mono_get_shared_generic_inst (MonoGenericContainer *container)
6500 MonoType **type_argv;
6502 MonoGenericInst *nginst;
6505 type_argv = g_new0 (MonoType *, container->type_argc);
6506 helper = g_new0 (MonoType, container->type_argc);
6508 for (i = 0; i < container->type_argc; i++) {
6509 MonoType *t = &helper [i];
6511 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6512 t->data.generic_param = mono_generic_container_get_param (container, i);
6517 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6526 * mono_type_is_byref:
6527 * \param type the \c MonoType operated on
6528 * \returns TRUE if \p type represents a type passed by reference,
6532 mono_type_is_byref (MonoType *type)
6538 * mono_type_get_type:
6539 * \param type the \c MonoType operated on
6540 * \returns the IL type value for \p type. This is one of the \c MonoTypeEnum
6541 * enum members like \c MONO_TYPE_I4 or \c MONO_TYPE_STRING.
6544 mono_type_get_type (MonoType *type)
6550 * mono_type_get_signature:
6551 * \param type the \c MonoType operated on
6552 * It is only valid to call this function if \p type is a \c MONO_TYPE_FNPTR .
6553 * \returns the \c MonoMethodSignature pointer that describes the signature
6554 * of the function pointer \p type represents.
6556 MonoMethodSignature*
6557 mono_type_get_signature (MonoType *type)
6559 g_assert (type->type == MONO_TYPE_FNPTR);
6560 return type->data.method;
6564 * mono_type_get_class:
6565 * \param type the \c MonoType operated on
6566 * It is only valid to call this function if \p type is a \c MONO_TYPE_CLASS or a
6567 * \c MONO_TYPE_VALUETYPE . For more general functionality, use \c mono_class_from_mono_type,
6569 * \returns the \c MonoClass pointer that describes the class that \p type represents.
6572 mono_type_get_class (MonoType *type)
6574 /* FIXME: review the runtime users before adding the assert here */
6575 return type->data.klass;
6579 * mono_type_get_array_type:
6580 * \param type the \c MonoType operated on
6581 * It is only valid to call this function if \p type is a \c MONO_TYPE_ARRAY .
6582 * \returns a \c MonoArrayType struct describing the array type that \p type
6583 * represents. The info includes details such as rank, array element type
6584 * and the sizes and bounds of multidimensional arrays.
6587 mono_type_get_array_type (MonoType *type)
6589 return type->data.array;
6593 * mono_type_get_ptr_type:
6594 * \pararm type the \c MonoType operated on
6595 * It is only valid to call this function if \p type is a \c MONO_TYPE_PTR .
6596 * \returns the \c MonoType pointer that describes the type that \p type
6597 * represents a pointer to.
6600 mono_type_get_ptr_type (MonoType *type)
6602 g_assert (type->type == MONO_TYPE_PTR);
6603 return type->data.type;
6607 * mono_type_get_modifiers:
6610 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6612 /* FIXME: implement */
6617 * mono_type_is_struct:
6618 * \param type the \c MonoType operated on
6619 * \returns TRUE if \p type is a struct, that is a \c ValueType but not an enum
6620 * or a basic type like \c System.Int32 . FALSE otherwise.
6623 mono_type_is_struct (MonoType *type)
6625 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6626 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6627 ((type->type == MONO_TYPE_GENERICINST) &&
6628 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6629 !type->data.generic_class->container_class->enumtype)));
6633 * mono_type_is_void:
6634 * \param type the \c MonoType operated on
6635 * \returns TRUE if \p type is \c System.Void . FALSE otherwise.
6638 mono_type_is_void (MonoType *type)
6640 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6644 * mono_type_is_pointer:
6645 * \param type the \c MonoType operated on
6646 * \returns TRUE if \p type is a managed or unmanaged pointer type. FALSE otherwise.
6649 mono_type_is_pointer (MonoType *type)
6651 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6652 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6653 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6654 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6655 (type->type == MONO_TYPE_FNPTR)));
6659 * mono_type_is_reference:
6660 * \param type the \c MonoType operated on
6661 * \returns TRUE if \p type represents an object reference. FALSE otherwise.
6664 mono_type_is_reference (MonoType *type)
6666 return (type && (((type->type == MONO_TYPE_STRING) ||
6667 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6668 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6669 ((type->type == MONO_TYPE_GENERICINST) &&
6670 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6674 mono_type_is_generic_parameter (MonoType *type)
6676 return !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR);
6680 * mono_signature_get_return_type:
6681 * \param sig the method signature inspected
6682 * \returns the return type of the method signature \p sig
6685 mono_signature_get_return_type (MonoMethodSignature *sig)
6691 * mono_signature_get_params:
6692 * \param sig the method signature inspected
6693 * \param iter pointer to an iterator
6694 * Iterates over the parameters for the method signature \p sig.
6695 * A \c void* pointer must be initialized to NULL to start the iteration
6696 * and its address is passed to this function repeteadly until it returns
6698 * \returns the next parameter type of the method signature \p sig,
6699 * NULL when finished.
6702 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6708 /* start from the first */
6709 if (sig->param_count) {
6710 *iter = &sig->params [0];
6711 return sig->params [0];
6717 type = (MonoType **)*iter;
6719 if (type < &sig->params [sig->param_count]) {
6727 * mono_signature_get_param_count:
6728 * \param sig the method signature inspected
6729 * \returns the number of parameters in the method signature \p sig.
6732 mono_signature_get_param_count (MonoMethodSignature *sig)
6734 return sig->param_count;
6738 * mono_signature_get_call_conv:
6739 * \param sig the method signature inspected
6740 * \returns the call convention of the method signature \p sig.
6743 mono_signature_get_call_conv (MonoMethodSignature *sig)
6745 return sig->call_convention;
6749 * mono_signature_vararg_start:
6750 * \param sig the method signature inspected
6751 * \returns the number of the first vararg parameter in the
6752 * method signature \param sig. \c -1 if this is not a vararg signature.
6755 mono_signature_vararg_start (MonoMethodSignature *sig)
6757 return sig->sentinelpos;
6761 * mono_signature_is_instance:
6762 * \param sig the method signature inspected
6763 * \returns TRUE if this the method signature \p sig has an implicit
6764 * first instance argument. FALSE otherwise.
6767 mono_signature_is_instance (MonoMethodSignature *sig)
6769 return sig->hasthis;
6773 * mono_signature_param_is_out
6774 * \param sig the method signature inspected
6775 * \param param_num the 0-based index of the inspected parameter
6776 * \returns TRUE if the parameter is an out parameter, FALSE
6780 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6782 g_assert (param_num >= 0 && param_num < sig->param_count);
6783 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6787 * mono_signature_explicit_this:
6788 * \param sig the method signature inspected
6789 * \returns TRUE if this the method signature \p sig has an explicit
6790 * instance argument. FALSE otherwise.
6793 mono_signature_explicit_this (MonoMethodSignature *sig)
6795 return sig->explicit_this;
6798 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6800 mono_aligned_addr_hash (gconstpointer ptr)
6802 /* Same hashing we use for objects */
6803 return (GPOINTER_TO_UINT (ptr) >> 3) * 2654435761u;
6807 * If @field belongs to an inflated generic class, return the corresponding field of the
6808 * generic type definition class.
6811 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6816 if (!mono_class_is_ginst (field->parent))
6819 gtd = mono_class_get_generic_class (field->parent)->container_class;
6820 offset = field - field->parent->fields;
6821 return gtd->fields + offset;
6825 * If @event belongs to an inflated generic class, return the corresponding event of the
6826 * generic type definition class.
6829 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6834 if (!mono_class_is_ginst (event->parent))
6837 gtd = mono_class_get_generic_class (event->parent)->container_class;
6838 offset = event - mono_class_get_event_info (event->parent)->events;
6839 return mono_class_get_event_info (gtd)->events + offset;
6843 * If @property belongs to an inflated generic class, return the corresponding property of the
6844 * generic type definition class.
6847 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6849 MonoClassPropertyInfo *info;
6853 if (!mono_class_is_ginst (property->parent))
6856 info = mono_class_get_property_info (property->parent);
6857 gtd = mono_class_get_generic_class (property->parent)->container_class;
6858 offset = property - info->properties;
6859 return mono_class_get_property_info (gtd)->properties + offset;
6863 mono_method_get_wrapper_cache (MonoMethod *method)
6865 if (method->is_inflated) {
6866 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
6867 return &imethod->owner->wrapper_caches;
6869 return &method->klass->image->wrapper_caches;
6873 // 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.
6876 * mono_find_image_set_owner:
6878 * Find the imageset, if any, which a given pointer is located in the memory of.
6881 mono_find_image_set_owner (void *ptr)
6883 MonoImageSet *owner = NULL;
6890 for (i = 0; !owner && i < image_sets->len; ++i) {
6891 MonoImageSet *set = (MonoImageSet *)g_ptr_array_index (image_sets, i);
6892 if (mono_mempool_contains_addr (set->mempool, ptr))
6897 image_sets_unlock ();