2 * metadata.c: Routines for accessing the metadata
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * (C) 2001-2002 Ximian, Inc.
17 #include "tabledefs.h"
18 #include "mono-endian.h"
20 #include "tokentype.h"
21 #include "metadata-internals.h"
22 #include "class-internals.h"
25 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
26 const char *ptr, const char **rptr);
28 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
29 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
30 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
31 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
32 gboolean signature_only);
33 static void free_generic_inst (MonoGenericInst *ginst);
34 static void free_generic_class (MonoGenericClass *ginst);
35 static void free_inflated_method (MonoMethodInflated *method);
38 * This enumeration is used to describe the data types in the metadata
49 /* Index into Blob heap */
52 /* Index into String heap */
58 /* Pointer into a table */
61 /* HasConstant:Parent pointer (Param, Field or Property) */
64 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
67 /* CustomAttributeType encoded index */
70 /* HasDeclSecurity index: TypeDef Method or Assembly */
73 /* Implementation coded index: File, Export AssemblyRef */
76 /* HasFieldMarshal coded index: Field or Param table */
79 /* MemberForwardedIndex: Field or Method */
82 /* TypeDefOrRef coded index: typedef, typeref, typespec */
85 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
88 /* MethodDefOrRef coded index: Method or Member Ref table */
91 /* HasSemantic coded index: Event or Property */
94 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
98 const static unsigned char TableSchemas [] = {
99 #define ASSEMBLY_SCHEMA_OFFSET 0
100 MONO_MT_UINT32, /* "HashId" }, */
101 MONO_MT_UINT16, /* "Major" }, */
102 MONO_MT_UINT16, /* "Minor" }, */
103 MONO_MT_UINT16, /* "BuildNumber" }, */
104 MONO_MT_UINT16, /* "RevisionNumber" }, */
105 MONO_MT_UINT32, /* "Flags" }, */
106 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
107 MONO_MT_STRING_IDX, /* "Name" }, */
108 MONO_MT_STRING_IDX, /* "Culture" }, */
111 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
112 MONO_MT_UINT32, /* "OSPlatformID" }, */
113 MONO_MT_UINT32, /* "OSMajor" }, */
114 MONO_MT_UINT32, /* "OSMinor" }, */
117 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
118 MONO_MT_UINT32, /* "Processor" }, */
121 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
122 MONO_MT_UINT16, /* "Major" }, */
123 MONO_MT_UINT16, /* "Minor" }, */
124 MONO_MT_UINT16, /* "Build" }, */
125 MONO_MT_UINT16, /* "Revision" }, */
126 MONO_MT_UINT32, /* "Flags" }, */
127 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
128 MONO_MT_STRING_IDX, /* "Name" }, */
129 MONO_MT_STRING_IDX, /* "Culture" }, */
130 MONO_MT_BLOB_IDX, /* "HashValue" }, */
133 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
134 MONO_MT_UINT32, /* "OSPlatformID" }, */
135 MONO_MT_UINT32, /* "OSMajorVersion" }, */
136 MONO_MT_UINT32, /* "OSMinorVersion" }, */
137 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
140 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
141 MONO_MT_UINT32, /* "Processor" }, */
142 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
145 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
146 MONO_MT_UINT16, /* "PackingSize" }, */
147 MONO_MT_UINT32, /* "ClassSize" }, */
148 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
151 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
152 MONO_MT_UINT8, /* "Type" }, */
153 MONO_MT_UINT8, /* "PaddingZero" }, */
154 MONO_MT_CONST_IDX, /* "Parent" }, */
155 MONO_MT_BLOB_IDX, /* "Value" }, */
158 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
159 MONO_MT_HASCAT_IDX, /* "Parent" }, */
160 MONO_MT_CAT_IDX, /* "Type" }, */
161 MONO_MT_BLOB_IDX, /* "Value" }, */
164 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
165 MONO_MT_UINT16, /* "Action" }, */
166 MONO_MT_HASDEC_IDX, /* "Parent" }, */
167 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
170 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
171 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
172 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
175 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
176 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
177 MONO_MT_STRING_IDX, /* "Name" }, */
178 MONO_MT_TABLE_IDX, /* "EventType" }, TypeDef or TypeRef */
181 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
182 MONO_MT_TABLE_IDX, /* "Event" }, */
185 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
186 MONO_MT_UINT32, /* "Flags" }, */
187 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
188 MONO_MT_STRING_IDX, /* "TypeName" }, */
189 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
190 MONO_MT_IMPL_IDX, /* "Implementation" }, */
193 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
194 MONO_MT_UINT16, /* "Flags" }, */
195 MONO_MT_STRING_IDX, /* "Name" }, */
196 MONO_MT_BLOB_IDX, /* "Signature" }, */
199 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
200 MONO_MT_UINT32, /* "Offset" }, */
201 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
204 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
205 MONO_MT_HFM_IDX, /* "Parent" }, */
206 MONO_MT_BLOB_IDX, /* "NativeType" }, */
209 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
210 MONO_MT_UINT32, /* "RVA" }, */
211 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
214 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
215 MONO_MT_TABLE_IDX, /* "Field" }, */
218 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
219 MONO_MT_UINT32, /* "Flags" }, */
220 MONO_MT_STRING_IDX, /* "Name" }, */
221 MONO_MT_BLOB_IDX, /* "Value" }, */
224 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
225 MONO_MT_UINT16, /* "MappingFlag" }, */
226 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
227 MONO_MT_STRING_IDX, /* "ImportName" }, */
228 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
231 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
232 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
233 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
236 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
237 MONO_MT_UINT32, /* "Offset" }, */
238 MONO_MT_UINT32, /* "Flags" }, */
239 MONO_MT_STRING_IDX, /* "Name" }, */
240 MONO_MT_IMPL_IDX, /* "Implementation" }, */
243 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
244 MONO_MT_MRP_IDX, /* "Class" }, */
245 MONO_MT_STRING_IDX, /* "Name" }, */
246 MONO_MT_BLOB_IDX, /* "Signature" }, */
249 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
250 MONO_MT_UINT32, /* "RVA" }, */
251 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
252 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
253 MONO_MT_STRING_IDX, /* "Name" }, */
254 MONO_MT_BLOB_IDX, /* "Signature" }, */
255 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
258 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
259 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
260 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
261 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
264 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
265 MONO_MT_UINT16, /* "MethodSemantic" }, */
266 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
267 MONO_MT_HS_IDX, /* "Association" }, */
270 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
271 MONO_MT_TABLE_IDX, /* "Method" }, */
274 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
275 MONO_MT_UINT16, /* "Generation" }, */
276 MONO_MT_STRING_IDX, /* "Name" }, */
277 MONO_MT_GUID_IDX, /* "MVID" }, */
278 MONO_MT_GUID_IDX, /* "EncID" }, */
279 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
282 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
283 MONO_MT_STRING_IDX, /* "Name" }, */
286 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
287 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
288 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
291 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
292 MONO_MT_UINT16, /* "Flags" }, */
293 MONO_MT_UINT16, /* "Sequence" }, */
294 MONO_MT_STRING_IDX, /* "Name" }, */
297 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
298 MONO_MT_TABLE_IDX, /* "Param" }, */
301 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
302 MONO_MT_UINT16, /* "Flags" }, */
303 MONO_MT_STRING_IDX, /* "Name" }, */
304 MONO_MT_BLOB_IDX, /* "Type" }, */
307 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
308 MONO_MT_TABLE_IDX, /* "Property" }, */
311 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
312 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
313 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
316 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
317 MONO_MT_BLOB_IDX, /* "Signature" }, */
320 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
321 MONO_MT_UINT32, /* "Flags" }, */
322 MONO_MT_STRING_IDX, /* "Name" }, */
323 MONO_MT_STRING_IDX, /* "Namespace" }, */
324 MONO_MT_TDOR_IDX, /* "Extends" }, */
325 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
326 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
329 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
330 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
331 MONO_MT_STRING_IDX, /* "Name" }, */
332 MONO_MT_STRING_IDX, /* "Namespace" }, */
335 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
336 MONO_MT_BLOB_IDX, /* "Signature" }, */
339 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
340 MONO_MT_UINT16, /* "Number" }, */
341 MONO_MT_UINT16, /* "Flags" }, */
342 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
343 MONO_MT_STRING_IDX, /* "Name" }, */
346 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
347 MONO_MT_MDOR_IDX, /* "Method" }, */
348 MONO_MT_BLOB_IDX, /* "Signature" }, */
351 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
352 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
353 MONO_MT_TDOR_IDX, /* "Constraint" }, */
356 #define NULL_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
360 /* Must be the same order as MONO_TABLE_* */
361 const static unsigned char
362 table_description [] = {
363 MODULE_SCHEMA_OFFSET,
364 TYPEREF_SCHEMA_OFFSET,
365 TYPEDEF_SCHEMA_OFFSET,
366 FIELD_POINTER_SCHEMA_OFFSET,
368 METHOD_POINTER_SCHEMA_OFFSET,
369 METHOD_SCHEMA_OFFSET,
370 PARAM_POINTER_SCHEMA_OFFSET,
372 IFACEMAP_SCHEMA_OFFSET,
373 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
374 CONSTANT_SCHEMA_OFFSET,
375 CUSTOM_ATTR_SCHEMA_OFFSET,
376 FIELD_MARSHAL_SCHEMA_OFFSET,
377 DECL_SEC_SCHEMA_OFFSET,
378 CLASS_LAYOUT_SCHEMA_OFFSET,
379 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
380 STDALON_SIG_SCHEMA_OFFSET,
381 EVENTMAP_SCHEMA_OFFSET,
382 EVENT_POINTER_SCHEMA_OFFSET,
384 PROPERTY_MAP_SCHEMA_OFFSET,
385 PROPERTY_POINTER_SCHEMA_OFFSET,
386 PROPERTY_SCHEMA_OFFSET,
387 METHOD_SEMA_SCHEMA_OFFSET,
388 METHOD_IMPL_SCHEMA_OFFSET,
389 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
390 TYPESPEC_SCHEMA_OFFSET,
391 IMPLMAP_SCHEMA_OFFSET,
392 FIELD_RVA_SCHEMA_OFFSET,
395 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
396 ASSEMBLYPROC_SCHEMA_OFFSET,
397 ASSEMBLYOS_SCHEMA_OFFSET,
398 ASSEMBLYREF_SCHEMA_OFFSET,
399 ASSEMBLYREFPROC_SCHEMA_OFFSET,
400 ASSEMBLYREFOS_SCHEMA_OFFSET,
402 EXPORTED_TYPE_SCHEMA_OFFSET,
403 MANIFEST_SCHEMA_OFFSET,
404 NESTED_CLASS_SCHEMA_OFFSET,
405 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
406 METHOD_SPEC_SCHEMA_OFFSET,
407 GEN_CONSTRAINT_SCHEMA_OFFSET
410 #ifdef HAVE_ARRAY_ELEM_INIT
411 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
412 #define MSGSTRFIELD1(line) str##line
413 static const struct msgstr_t {
414 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
415 #include "mono/cil/tables.def"
418 #define TABLEDEF(a,b) b,
419 #include "mono/cil/tables.def"
422 static const gint16 tableidx [] = {
423 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
424 #include "mono/cil/tables.def"
429 #define TABLEDEF(a,b) b,
430 static const char* const
431 mono_tables_names [] = {
432 #include "mono/cil/tables.def"
438 /* Auxiliary structure used for caching inflated signatures */
440 MonoMethodSignature *sig;
441 MonoGenericContext context;
442 } MonoInflatedMethodSignature;
445 * mono_meta_table_name:
446 * @table: table index
448 * Returns the name of the given ECMA metadata logical format table
449 * as described in ECMA 335, Partition II, Section 22.
451 * Returns: the name for the @table index
454 mono_meta_table_name (int table)
456 if ((table < 0) || (table > MONO_TABLE_LAST))
459 #ifdef HAVE_ARRAY_ELEM_INIT
460 return (const char*)&tablestr + tableidx [table];
462 return mono_tables_names [table];
466 /* The guy who wrote the spec for this should not be allowed near a
469 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
470 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
471 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
472 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
473 inverse of this mapping.
476 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
477 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
479 /* Reference: Partition II - 23.2.6 */
481 * mono_metadata_compute_size:
482 * @meta: metadata context
483 * @tableindex: metadata table number
484 * @result_bitfield: pointer to guint32 where to store additional info
486 * mono_metadata_compute_size() computes the lenght in bytes of a single
487 * row in a metadata table. The size of each column is encoded in the
488 * @result_bitfield return value along with the number of columns in the table.
489 * the resulting bitfield should be handed to the mono_metadata_table_size()
490 * and mono_metadata_table_count() macros.
491 * This is a Mono runtime internal only function.
494 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
496 guint32 bitfield = 0;
497 int size = 0, field_size = 0;
500 const unsigned char *description = TableSchemas + table_description [tableindex];
502 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
505 field_size = 4; break;
508 field_size = 2; break;
511 field_size = 1; break;
513 case MONO_MT_BLOB_IDX:
514 field_size = meta->idx_blob_wide ? 4 : 2; break;
516 case MONO_MT_STRING_IDX:
517 field_size = meta->idx_string_wide ? 4 : 2; break;
519 case MONO_MT_GUID_IDX:
520 field_size = meta->idx_guid_wide ? 4 : 2; break;
522 case MONO_MT_TABLE_IDX:
523 /* Uhm, a table index can point to other tables besides the current one
524 * so, it's not correct to use the rowcount of the current table to
525 * get the size for this column - lupus
527 switch (tableindex) {
528 case MONO_TABLE_ASSEMBLYREFOS:
530 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
531 case MONO_TABLE_ASSEMBLYPROCESSOR:
533 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
534 case MONO_TABLE_CLASSLAYOUT:
536 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
537 case MONO_TABLE_EVENTMAP:
538 g_assert (i == 0 || i == 1);
539 field_size = i ? idx_size (MONO_TABLE_EVENT):
540 idx_size(MONO_TABLE_TYPEDEF);
542 case MONO_TABLE_EVENT:
544 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows, meta->tables [MONO_TABLE_TYPEREF].rows);
545 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
546 /*This is a coded token for 3 tables, so takes 2 bits */
547 field_size = rtsize (n, 16 - MONO_TYPEDEFORREF_BITS);
549 case MONO_TABLE_EVENT_POINTER:
551 field_size = idx_size (MONO_TABLE_EVENT); break;
552 case MONO_TABLE_EXPORTEDTYPE:
554 /* the index is in another metadata file, so it must be 4 */
555 field_size = 4; break;
556 case MONO_TABLE_FIELDLAYOUT:
558 field_size = idx_size (MONO_TABLE_FIELD); break;
559 case MONO_TABLE_FIELDRVA:
561 field_size = idx_size (MONO_TABLE_FIELD); break;
562 case MONO_TABLE_FIELD_POINTER:
564 field_size = idx_size (MONO_TABLE_FIELD); break;
565 case MONO_TABLE_IMPLMAP:
567 field_size = idx_size (MONO_TABLE_MODULEREF); break;
568 case MONO_TABLE_INTERFACEIMPL:
570 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
571 case MONO_TABLE_METHOD:
573 field_size = idx_size (MONO_TABLE_PARAM); break;
574 case MONO_TABLE_METHODIMPL:
576 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
577 case MONO_TABLE_METHODSEMANTICS:
579 field_size = idx_size (MONO_TABLE_METHOD); break;
580 case MONO_TABLE_METHOD_POINTER:
582 field_size = idx_size (MONO_TABLE_METHOD); break;
583 case MONO_TABLE_NESTEDCLASS:
584 g_assert (i == 0 || i == 1);
585 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
586 case MONO_TABLE_PARAM_POINTER:
588 field_size = idx_size (MONO_TABLE_PARAM); break;
589 case MONO_TABLE_PROPERTYMAP:
590 g_assert (i == 0 || i == 1);
591 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
592 idx_size(MONO_TABLE_TYPEDEF);
594 case MONO_TABLE_PROPERTY_POINTER:
596 field_size = idx_size (MONO_TABLE_PROPERTY); break;
597 case MONO_TABLE_TYPEDEF:
598 g_assert (i == 4 || i == 5);
599 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
600 idx_size(MONO_TABLE_METHOD);
602 case MONO_TABLE_GENERICPARAM:
603 g_assert (i == 2 || i == 4 || i == 5);
605 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
606 /*This is a coded token for 2 tables, so takes 1 bit */
607 field_size = rtsize (n, 16 - MONO_TYPEORMETHOD_BITS);
609 field_size = idx_size (MONO_TABLE_TYPEDEF);
611 field_size = idx_size (MONO_TABLE_TYPEDEF);
614 case MONO_TABLE_GENERICPARAMCONSTRAINT:
616 field_size = idx_size (MONO_TABLE_GENERICPARAM);
620 g_assert_not_reached ();
625 * HasConstant: ParamDef, FieldDef, Property
627 case MONO_MT_CONST_IDX:
628 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
629 meta->tables [MONO_TABLE_FIELD].rows);
630 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
632 /* 2 bits to encode tag */
633 field_size = rtsize (n, 16-2);
637 * HasCustomAttribute: points to any table but
640 case MONO_MT_HASCAT_IDX:
642 * We believe that since the signature and
643 * permission are indexing the Blob heap,
644 * we should consider the blob size first
646 /* I'm not a believer - lupus
647 if (meta->idx_blob_wide){
652 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
653 meta->tables [MONO_TABLE_FIELD].rows);
654 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
655 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
656 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
657 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
658 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
659 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
660 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
661 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
662 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
663 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
664 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
665 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
666 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
667 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
668 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
669 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
670 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
672 /* 5 bits to encode */
673 field_size = rtsize (n, 16-5);
677 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
678 * MemberRef and String.
680 case MONO_MT_CAT_IDX:
681 /* String is a heap, if it is wide, we know the size */
683 if (meta->idx_string_wide){
688 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
689 meta->tables [MONO_TABLE_TYPEDEF].rows);
690 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
691 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
693 /* 3 bits to encode */
694 field_size = rtsize (n, 16-3);
698 * HasDeclSecurity: Typedef, MethodDef, Assembly
700 case MONO_MT_HASDEC_IDX:
701 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
702 meta->tables [MONO_TABLE_METHOD].rows);
703 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
705 /* 2 bits to encode */
706 field_size = rtsize (n, 16-2);
710 * Implementation: File, AssemblyRef, ExportedType
712 case MONO_MT_IMPL_IDX:
713 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
714 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
715 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
717 /* 2 bits to encode tag */
718 field_size = rtsize (n, 16-2);
722 * HasFieldMarshall: FieldDef, ParamDef
724 case MONO_MT_HFM_IDX:
725 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
726 meta->tables [MONO_TABLE_PARAM].rows);
728 /* 1 bit used to encode tag */
729 field_size = rtsize (n, 16-1);
733 * MemberForwarded: FieldDef, MethodDef
736 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
737 meta->tables [MONO_TABLE_METHOD].rows);
739 /* 1 bit used to encode tag */
740 field_size = rtsize (n, 16-1);
744 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
746 * It is TypeDef, _TypeRef_, TypeSpec, instead.
748 case MONO_MT_TDOR_IDX:
749 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
750 meta->tables [MONO_TABLE_TYPEREF].rows);
751 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
753 /* 2 bits to encode */
754 field_size = rtsize (n, 16-2);
758 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
760 case MONO_MT_MRP_IDX:
761 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
762 meta->tables [MONO_TABLE_TYPEREF].rows);
763 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
764 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
765 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
766 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
768 /* 3 bits to encode */
769 field_size = rtsize (n, 16 - 3);
773 * MethodDefOrRef: MethodDef, MemberRef
775 case MONO_MT_MDOR_IDX:
776 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
777 meta->tables [MONO_TABLE_MEMBERREF].rows);
779 /* 1 bit used to encode tag */
780 field_size = rtsize (n, 16-1);
784 * HasSemantics: Property, Event
787 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
788 meta->tables [MONO_TABLE_EVENT].rows);
790 /* 1 bit used to encode tag */
791 field_size = rtsize (n, 16-1);
795 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
798 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
799 meta->tables [MONO_TABLE_MODULEREF].rows);
800 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
801 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
803 /* 2 bits used to encode tag (ECMA spec claims 3) */
804 field_size = rtsize (n, 16 - 2);
809 * encode field size as follows (we just need to
816 bitfield |= (field_size-1) << shift;
819 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
822 *result_bitfield = (i << 24) | bitfield;
827 * mono_metadata_compute_table_bases:
828 * @meta: metadata context to compute table values
830 * Computes the table bases for the metadata structure.
831 * This is an internal function used by the image loader code.
834 mono_metadata_compute_table_bases (MonoImage *meta)
837 const char *base = meta->tables_base;
839 for (i = 0; i < MONO_TABLE_NUM; i++) {
840 MonoTableInfo *table = &meta->tables [i];
841 if (table->rows == 0)
844 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
846 base += table->rows * table->row_size;
851 * mono_metadata_locate:
852 * @meta: metadata context
853 * @table: table code.
854 * @idx: index of element to retrieve from @table.
856 * Returns: a pointer to the @idx element in the metadata table
857 * whose code is @table.
860 mono_metadata_locate (MonoImage *meta, int table, int idx)
862 /* idx == 0 refers always to NULL */
863 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, "");
865 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
869 * mono_metadata_locate_token:
870 * @meta: metadata context
871 * @token: metadata token
873 * Returns: a pointer to the data in the metadata represented by the
877 mono_metadata_locate_token (MonoImage *meta, guint32 token)
879 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
883 * mono_metadata_string_heap:
884 * @meta: metadata context
885 * @index: index into the string heap.
887 * Returns: an in-memory pointer to the @index in the string heap.
890 mono_metadata_string_heap (MonoImage *meta, guint32 index)
892 g_return_val_if_fail (index < meta->heap_strings.size, "");
893 return meta->heap_strings.data + index;
897 * mono_metadata_user_string:
898 * @meta: metadata context
899 * @index: index into the user string heap.
901 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
904 mono_metadata_user_string (MonoImage *meta, guint32 index)
906 g_return_val_if_fail (index < meta->heap_us.size, "");
907 return meta->heap_us.data + index;
911 * mono_metadata_blob_heap:
912 * @meta: metadata context
913 * @index: index into the blob.
915 * Returns: an in-memory pointer to the @index in the Blob heap.
918 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
920 g_return_val_if_fail (index < meta->heap_blob.size, "");
921 return meta->heap_blob.data + index;
925 * mono_metadata_guid_heap:
926 * @meta: metadata context
927 * @index: index into the guid heap.
929 * Returns: an in-memory pointer to the @index in the guid heap.
932 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
935 index *= 16; /* adjust for guid size and 1-based index */
936 g_return_val_if_fail (index < meta->heap_guid.size, "");
937 return meta->heap_guid.data + index;
940 static const unsigned char *
941 dword_align (const unsigned char *ptr)
943 #if SIZEOF_VOID_P == 8
944 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
946 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
951 * mono_metadata_decode_row:
952 * @t: table to extract information from.
953 * @idx: index in table.
954 * @res: array of @res_size cols to store the results in
956 * This decompresses the metadata element @idx in table @t
957 * into the guint32 @res array that has res_size elements
960 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
962 guint32 bitfield = t->size_bitfield;
963 int i, count = mono_metadata_table_count (bitfield);
966 g_assert (idx < t->rows);
967 data = t->base + idx * t->row_size;
969 g_assert (res_size == count);
971 for (i = 0; i < count; i++) {
972 int n = mono_metadata_table_size (bitfield, i);
976 res [i] = *data; break;
978 res [i] = read16 (data); break;
980 res [i] = read32 (data); break;
982 g_assert_not_reached ();
989 * mono_metadata_decode_row_col:
990 * @t: table to extract information from.
991 * @idx: index for row in table.
992 * @col: column in the row.
994 * This function returns the value of column @col from the @idx
995 * row in the table @t.
998 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
1000 guint32 bitfield = t->size_bitfield;
1002 register const char *data;
1005 g_assert (idx < t->rows);
1006 g_assert (col < mono_metadata_table_count (bitfield));
1007 data = t->base + idx * t->row_size;
1009 n = mono_metadata_table_size (bitfield, 0);
1010 for (i = 0; i < col; ++i) {
1012 n = mono_metadata_table_size (bitfield, i + 1);
1018 return read16 (data);
1020 return read32 (data);
1022 g_assert_not_reached ();
1028 * mono_metadata_decode_blob_size:
1029 * @ptr: pointer to a blob object
1030 * @rptr: the new position of the pointer
1032 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1034 * Returns: the size of the blob object
1037 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1039 const unsigned char *ptr = (const unsigned char *)xptr;
1042 if ((*ptr & 0x80) == 0){
1043 size = ptr [0] & 0x7f;
1045 } else if ((*ptr & 0x40) == 0){
1046 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1049 size = ((ptr [0] & 0x1f) << 24) +
1061 * mono_metadata_decode_value:
1062 * @ptr: pointer to decode from
1063 * @rptr: the new position of the pointer
1065 * This routine decompresses 32-bit values as specified in the "Blob and
1066 * Signature" section (22.2)
1068 * Returns: the decoded value
1071 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1073 const unsigned char *ptr = (const unsigned char *) _ptr;
1074 unsigned char b = *ptr;
1077 if ((b & 0x80) == 0){
1080 } else if ((b & 0x40) == 0){
1081 len = ((b & 0x3f) << 8 | ptr [1]);
1084 len = ((b & 0x1f) << 24) |
1097 * mono_metadata_decode_signed_value:
1098 * @ptr: pointer to decode from
1099 * @rptr: the new position of the pointer
1101 * This routine decompresses 32-bit signed values
1102 * (not specified in the spec)
1104 * Returns: the decoded value
1107 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1109 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1110 gint32 ival = uval >> 1;
1113 /* ival is a truncated 2's complement negative number. */
1115 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1118 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1119 return ival - 0x2000;
1120 if (ival < 0x10000000)
1121 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1122 return ival - 0x10000000;
1123 g_assert (ival < 0x20000000);
1124 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1125 return ival - 0x20000000;
1129 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1130 * using the *Ptr tables in uncompressed metadata, if they are available.
1132 * FIXME: The caller is not forced to call this function, which is error-prone, since
1133 * forgetting to call it would only show up as a bug on uncompressed metadata.
1136 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1138 if (!image->uncompressed_metadata)
1142 case MONO_TABLE_METHOD:
1143 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1144 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1147 case MONO_TABLE_FIELD:
1148 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1149 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1152 case MONO_TABLE_EVENT:
1153 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1154 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1157 case MONO_TABLE_PROPERTY:
1158 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1159 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1162 case MONO_TABLE_PARAM:
1163 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1164 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1173 * mono_metadata_decode_table_row:
1175 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1176 * uncompressed metadata into account, so it should be used to access the
1177 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1178 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1181 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1183 if (image->uncompressed_metadata)
1184 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1186 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1190 * mono_metadata_decode_table_row_col:
1192 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1193 * uncompressed metadata into account, so it should be used to access the
1194 * Method, Field, Param and Event tables.
1196 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1198 if (image->uncompressed_metadata)
1199 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1201 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1205 * mono_metadata_parse_typedef_or_ref:
1206 * @m: a metadata context.
1207 * @ptr: a pointer to an encoded TypedefOrRef in @m
1208 * @rptr: pointer updated to match the end of the decoded stream
1210 * Returns: a token valid in the @m metadata decoded from
1211 * the compressed representation.
1214 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1217 token = mono_metadata_decode_value (ptr, &ptr);
1220 return mono_metadata_token_from_dor (token);
1224 * mono_metadata_parse_custom_mod:
1225 * @m: a metadata context.
1226 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1227 * @ptr: a pointer to (possibly) the start of a custom modifier list
1228 * @rptr: pointer updated to match the end of the decoded stream
1230 * Checks if @ptr points to a type custom modifier compressed representation.
1232 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1235 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1237 MonoCustomMod local;
1238 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1241 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1242 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1249 * mono_metadata_parse_array_full:
1250 * @m: a metadata context.
1251 * @ptr: a pointer to an encoded array description.
1252 * @rptr: pointer updated to match the end of the decoded stream
1254 * Decodes the compressed array description found in the metadata @m at @ptr.
1256 * Returns: a #MonoArrayType structure describing the array type
1257 * and dimensions. Memory is allocated from the image mempool.
1259 * LOCKING: Assumes the loader lock is held.
1262 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1263 const char *ptr, const char **rptr)
1266 MonoArrayType *array = mono_image_alloc0 (m, sizeof (MonoArrayType));
1269 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1272 array->eklass = mono_class_from_mono_type (etype);
1273 array->rank = mono_metadata_decode_value (ptr, &ptr);
1275 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1276 if (array->numsizes)
1277 array->sizes = g_new0 (int, array->numsizes);
1278 for (i = 0; i < array->numsizes; ++i)
1279 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1281 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1282 if (array->numlobounds)
1283 array->lobounds = g_new0 (int, array->numlobounds);
1284 for (i = 0; i < array->numlobounds; ++i)
1285 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1293 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1295 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1299 * mono_metadata_free_array:
1300 * @array: array description
1302 * Frees the array description returned from mono_metadata_parse_array().
1305 mono_metadata_free_array (MonoArrayType *array)
1307 g_free (array->sizes);
1308 g_free (array->lobounds);
1313 * need to add common field and param attributes combinations:
1316 * public static literal
1319 * private static literal
1321 static const MonoType
1323 /* data, attrs, type, nmods, byref, pinned */
1324 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1325 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1326 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1327 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1328 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1329 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1330 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1331 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1332 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1333 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1334 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1335 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1336 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1337 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1338 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1339 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1340 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1341 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1342 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1343 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1344 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1345 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1346 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1347 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1348 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1349 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1350 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1351 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1352 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1353 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1354 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1355 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1356 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1357 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1360 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1362 static GHashTable *type_cache = NULL;
1363 static GHashTable *generic_inst_cache = NULL;
1364 static GHashTable *generic_class_cache = NULL;
1365 static int next_generic_inst_id = 0;
1368 * Protected by the loader lock.
1369 * It has a MonoMethodInflated* as key and value.
1370 * The key lookup will just access the declaring and context fields
1372 static GHashTable *generic_method_cache = NULL;
1375 * Protected by the loader lock.
1376 * It has a MonoInflatedMethodSignature* as key and value.
1378 static GHashTable *generic_signature_cache = NULL;
1380 static guint mono_generic_class_hash (gconstpointer data);
1383 * MonoTypes with modifies are never cached, so we never check or use that field.
1386 mono_type_hash (gconstpointer data)
1388 const MonoType *type = (const MonoType *) data;
1389 if (type->type == MONO_TYPE_GENERICINST)
1390 return mono_generic_class_hash (type->data.generic_class);
1392 return type->type | (type->byref << 8) | (type->attrs << 9);
1396 mono_type_equal (gconstpointer ka, gconstpointer kb)
1398 const MonoType *a = (const MonoType *) ka;
1399 const MonoType *b = (const MonoType *) kb;
1401 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1403 /* need other checks */
1408 mono_metadata_generic_inst_hash (gconstpointer data)
1410 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1414 for (i = 0; i < ginst->type_argc; ++i) {
1416 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1419 return hash ^ (ginst->is_open << 8);
1423 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1427 if (a->id && b->id) {
1430 if (!signature_only)
1434 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1436 for (i = 0; i < a->type_argc; ++i) {
1437 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1444 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1446 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1447 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1449 return mono_generic_inst_equal_full (a, b, FALSE);
1453 mono_generic_class_hash (gconstpointer data)
1455 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1456 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1459 hash += gclass->is_tb_open;
1460 hash += mono_metadata_generic_context_hash (&gclass->context);
1466 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1468 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1469 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1471 return _mono_metadata_generic_class_equal (a, b, FALSE);
1475 * mono_metadata_init:
1477 * Initialize the global variables of this module.
1478 * This is a Mono runtime internal function.
1481 mono_metadata_init (void)
1485 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1486 generic_inst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
1487 generic_class_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
1489 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1490 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1494 * mono_metadata_cleanup:
1496 * Free all resources used by this module.
1497 * This is a Mono runtime internal function.
1500 mono_metadata_cleanup (void)
1502 g_hash_table_destroy (type_cache);
1503 g_hash_table_destroy (generic_inst_cache);
1504 g_hash_table_destroy (generic_class_cache);
1505 if (generic_method_cache)
1506 g_hash_table_destroy (generic_method_cache);
1507 if (generic_signature_cache)
1508 g_hash_table_destroy (generic_signature_cache);
1510 generic_inst_cache = NULL;
1511 generic_class_cache = NULL;
1512 generic_method_cache = NULL;
1513 generic_signature_cache = NULL;
1517 * mono_metadata_parse_type:
1518 * @m: metadata context
1519 * @mode: king of type that may be found at @ptr
1520 * @opt_attrs: optional attributes to store in the returned type
1521 * @ptr: pointer to the type representation
1522 * @rptr: pointer updated to match the end of the decoded stream
1524 * Decode a compressed type description found at @ptr in @m.
1525 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1526 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1527 * This function can be used to decode type descriptions in method signatures,
1528 * field signatures, locals signatures etc.
1530 * To parse a generic type, `generic_container' points to the current class'es
1531 * (the `generic_container' field in the MonoClass) or the current generic method's
1532 * (the `generic_container' field in the MonoMethodNormal) generic container.
1533 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1534 * this MonoGenericContainer.
1535 * This is a Mono runtime internal function.
1537 * LOCKING: Acquires the loader lock.
1539 * Returns: a #MonoType structure representing the decoded type.
1542 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1543 short opt_attrs, const char *ptr, const char **rptr)
1545 MonoType *type, *cached;
1547 gboolean byref = FALSE;
1548 gboolean pinned = FALSE;
1549 const char *tmp_ptr;
1554 * According to the spec, custom modifiers should come before the byref
1555 * flag, but the IL produced by ilasm from the following signature:
1556 * object modopt(...) &
1557 * starts with a byref flag, followed by the modifiers. (bug #49802)
1558 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1559 * it would be better to treat byref as real type constructor instead of
1561 * Also, pinned should come before anything else, but some MSV++ produced
1562 * assemblies violate this (#bug 61990).
1565 /* Count the modifiers first */
1570 case MONO_TYPE_PINNED:
1571 case MONO_TYPE_BYREF:
1574 case MONO_TYPE_CMOD_REQD:
1575 case MONO_TYPE_CMOD_OPT:
1577 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1585 mono_loader_lock ();
1586 type = mono_image_alloc0 (m, sizeof (MonoType) + ((gint32)count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod));
1587 mono_loader_unlock ();
1588 type->num_mods = count;
1590 g_warning ("got more than 64 modifiers in type");
1593 memset (type, 0, sizeof (MonoType));
1596 /* Parse pinned, byref and custom modifiers */
1601 case MONO_TYPE_PINNED:
1605 case MONO_TYPE_BYREF:
1609 case MONO_TYPE_CMOD_REQD:
1610 case MONO_TYPE_CMOD_OPT:
1611 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1619 type->attrs = opt_attrs;
1620 type->byref = byref;
1621 type->pinned = pinned ? 1 : 0;
1623 if (!do_mono_metadata_parse_type (type, m, container, ptr, &ptr)) {
1630 if (!type->num_mods) {
1631 /* no need to free type here, because it is on the stack */
1632 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1633 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1635 /* Consider the case:
1637 class Foo<T> { class Bar {} }
1638 class Test : Foo<Test>.Bar {}
1640 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1641 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1643 We ensure that the MonoClass is in a state that we can canonicalize to:
1645 klass->byval_arg.data.klass == klass
1646 klass->this_arg.data.klass == klass
1648 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1650 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1651 of a MonoClass which currently holds the loader lock. 'type' is local.
1653 if (ret->data.klass == type->data.klass) {
1657 /* No need to use locking since nobody is modifying the hash table */
1658 if ((cached = g_hash_table_lookup (type_cache, type))) {
1663 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1665 if (type == &stype) {
1666 mono_loader_lock ();
1667 type = mono_image_alloc (m, sizeof (MonoType));
1668 mono_loader_unlock ();
1669 memcpy (type, &stype, sizeof (MonoType));
1675 * LOCKING: Acquires the loader lock.
1678 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1679 const char *ptr, const char **rptr)
1681 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1685 * mono_metadata_get_param_attrs:
1687 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1688 * returned memory needs to be freed by the caller. If all the param attributes are
1689 * 0, then NULL is returned.
1692 mono_metadata_get_param_attrs (MonoImage *m, int def)
1694 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1695 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1696 guint32 cols [MONO_PARAM_SIZE];
1697 guint lastp, i, param_index = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def - 1, MONO_METHOD_PARAMLIST);
1700 if (def < methodt->rows)
1701 lastp = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def, MONO_METHOD_PARAMLIST);
1703 lastp = paramt->rows + 1;
1705 for (i = param_index; i < lastp; ++i) {
1706 mono_metadata_decode_row (&m->tables [MONO_TABLE_PARAM], i - 1, cols, MONO_PARAM_SIZE);
1707 if (cols [MONO_PARAM_FLAGS]) {
1709 pattrs = g_new0 (int, 1 + (lastp - param_index));
1710 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1718 * mono_metadata_parse_signature_full:
1719 * @image: metadata context
1720 * @generic_container: generic container
1721 * @toke: metadata token
1723 * Decode a method signature stored in the STANDALONESIG table
1725 * LOCKING: Assumes the loader lock is held.
1727 * Returns: a MonoMethodSignature describing the signature.
1729 MonoMethodSignature*
1730 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1732 MonoTableInfo *tables = image->tables;
1733 guint32 idx = mono_metadata_token_index (token);
1738 return mono_lookup_dynamic_token (image, token, NULL);
1740 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1742 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1744 ptr = mono_metadata_blob_heap (image, sig);
1745 mono_metadata_decode_blob_size (ptr, &ptr);
1747 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1751 * mono_metadata_parse_signature:
1752 * @image: metadata context
1753 * @toke: metadata token
1755 * Decode a method signature stored in the STANDALONESIG table
1757 * Returns: a MonoMethodSignature describing the signature.
1759 MonoMethodSignature*
1760 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1762 return mono_metadata_parse_signature_full (image, NULL, token);
1766 * mono_metadata_signature_alloc:
1767 * @image: metadata context
1768 * @nparmas: number of parameters in the signature
1770 * Allocate a MonoMethodSignature structure with the specified number of params.
1771 * The return type and the params types need to be filled later.
1772 * This is a Mono runtime internal function.
1774 * LOCKING: Assumes the loader lock is held.
1776 * Returns: the new MonoMethodSignature structure.
1778 MonoMethodSignature*
1779 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1781 MonoMethodSignature *sig;
1783 mono_loader_lock ();
1784 sig = mono_image_alloc0 (m, sizeof (MonoMethodSignature) + ((gint32)nparams - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
1785 sig->param_count = nparams;
1786 sig->sentinelpos = -1;
1787 mono_loader_unlock ();
1792 MonoMethodSignature*
1793 mono_metadata_signature_dup_full (MonoMemPool *mp, MonoMethodSignature *sig)
1797 sigsize = sizeof (MonoMethodSignature) + (sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *);
1800 MonoMethodSignature *ret;
1801 mono_loader_lock ();
1802 ret = mono_mempool_alloc (mp, sigsize);
1803 mono_loader_unlock ();
1805 memcpy (ret, sig, sigsize);
1808 return g_memdup (sig, sigsize);
1813 * mono_metadata_signature_dup:
1814 * @sig: method signature
1816 * Duplicate an existing MonoMethodSignature so it can be modified.
1817 * This is a Mono runtime internal function.
1819 * Returns: the new MonoMethodSignature structure.
1821 MonoMethodSignature*
1822 mono_metadata_signature_dup (MonoMethodSignature *sig)
1824 return mono_metadata_signature_dup_full (NULL, sig);
1828 * mono_metadata_parse_method_signature:
1829 * @m: metadata context
1830 * @generic_container: generics container
1831 * @def: the MethodDef index or 0 for Ref signatures.
1832 * @ptr: pointer to the signature metadata representation
1833 * @rptr: pointer updated to match the end of the decoded stream
1835 * Decode a method signature stored at @ptr.
1836 * This is a Mono runtime internal function.
1838 * LOCKING: Assumes the loader lock is held.
1840 * Returns: a MonoMethodSignature describing the signature.
1842 MonoMethodSignature *
1843 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1844 int def, const char *ptr, const char **rptr)
1846 MonoMethodSignature *method;
1847 int i, *pattrs = NULL;
1848 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1849 guint32 gen_param_count = 0;
1850 gboolean is_open = FALSE;
1853 gen_param_count = 1;
1858 call_convention = *ptr & 0x0F;
1860 if (gen_param_count)
1861 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1862 param_count = mono_metadata_decode_value (ptr, &ptr);
1865 pattrs = mono_metadata_get_param_attrs (m, def);
1866 method = mono_metadata_signature_alloc (m, param_count);
1867 method->hasthis = hasthis;
1868 method->explicit_this = explicit_this;
1869 method->call_convention = call_convention;
1870 method->generic_param_count = gen_param_count;
1872 if (call_convention != 0xa) {
1873 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1875 mono_metadata_free_method_signature (method);
1879 is_open = mono_class_is_open_constructed_type (method->ret);
1882 for (i = 0; i < method->param_count; ++i) {
1883 if (*ptr == MONO_TYPE_SENTINEL) {
1884 if (method->call_convention != MONO_CALL_VARARG || def)
1885 g_error ("found sentinel for methoddef or no vararg method");
1886 if (method->sentinelpos >= 0)
1887 g_error ("found sentinel twice in the same signature");
1888 method->sentinelpos = i;
1891 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1892 if (!method->params [i]) {
1893 mono_metadata_free_method_signature (method);
1898 is_open = mono_class_is_open_constructed_type (method->params [i]);
1901 /* The sentinel could be missing if the caller does not pass any additional arguments */
1902 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1903 method->sentinelpos = method->param_count;
1905 method->has_type_parameters = is_open;
1907 if (def && (method->call_convention == MONO_CALL_VARARG))
1908 method->sentinelpos = method->param_count;
1915 * Add signature to a cache and increase ref count...
1922 * mono_metadata_parse_method_signature:
1923 * @m: metadata context
1924 * @def: the MethodDef index or 0 for Ref signatures.
1925 * @ptr: pointer to the signature metadata representation
1926 * @rptr: pointer updated to match the end of the decoded stream
1928 * Decode a method signature stored at @ptr.
1929 * This is a Mono runtime internal function.
1931 * LOCKING: Assumes the loader lock is held.
1933 * Returns: a MonoMethodSignature describing the signature.
1935 MonoMethodSignature *
1936 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1938 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1942 * mono_metadata_free_method_signature:
1943 * @sig: signature to destroy
1945 * Free the memory allocated in the signature @sig.
1946 * This method needs to be robust and work also on partially-built
1947 * signatures, so it does extra checks.
1950 mono_metadata_free_method_signature (MonoMethodSignature *sig)
1952 /* Everything is allocated from mempools */
1956 mono_metadata_free_type (sig->ret);
1957 for (i = 0; i < sig->param_count; ++i) {
1958 if (sig->params [i])
1959 mono_metadata_free_type (sig->params [i]);
1965 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
1969 /* Allocated in inflate_generic_signature () */
1971 mono_metadata_free_type (sig->ret);
1972 for (i = 0; i < sig->param_count; ++i) {
1973 if (sig->params [i])
1974 mono_metadata_free_type (sig->params [i]);
1980 inflated_method_equal (gconstpointer a, gconstpointer b)
1982 const MonoMethodInflated *ma = a;
1983 const MonoMethodInflated *mb = b;
1984 if (ma->declaring != mb->declaring)
1986 if (ma->is_mb_open != mb->is_mb_open)
1988 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
1992 inflated_method_hash (gconstpointer a)
1994 const MonoMethodInflated *ma = a;
1995 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->is_mb_open;
1999 inflated_signature_equal (gconstpointer a, gconstpointer b)
2001 const MonoInflatedMethodSignature *sig1 = a;
2002 const MonoInflatedMethodSignature *sig2 = b;
2004 /* sig->sig is assumed to be canonized */
2005 if (sig1->sig != sig2->sig)
2007 /* The generic instances are canonized */
2008 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2012 inflated_signature_hash (gconstpointer a)
2014 const MonoInflatedMethodSignature *sig = a;
2016 /* sig->sig is assumed to be canonized */
2017 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2021 dump_ginst (MonoGenericInst *ginst)
2026 g_print ("Ginst: <");
2027 for (i = 0; i < ginst->type_argc; ++i) {
2030 name = mono_type_get_name (ginst->type_argv [i]);
2031 g_print ("%s", name);
2037 static gboolean type_in_image (MonoType *type, MonoImage *image);
2040 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2042 gpointer iter = NULL;
2045 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2046 if (type_in_image (p, image))
2049 return type_in_image (mono_signature_get_return_type (sig), image);
2053 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2057 for (i = 0; i < ginst->type_argc; ++i) {
2058 if (type_in_image (ginst->type_argv [i], image))
2066 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2068 return gclass->container_class->image == image ||
2069 ginst_in_image (gclass->context.class_inst, image);
2073 type_in_image (MonoType *type, MonoImage *image)
2076 switch (type->type) {
2077 case MONO_TYPE_GENERICINST:
2078 return gclass_in_image (type->data.generic_class, image);
2080 type = type->data.type;
2082 case MONO_TYPE_SZARRAY:
2083 type = &type->data.klass->byval_arg;
2085 case MONO_TYPE_ARRAY:
2086 type = &type->data.array->eklass->byval_arg;
2088 case MONO_TYPE_FNPTR:
2089 return signature_in_image (type->data.method, image);
2091 if (type->data.generic_param->owner) {
2092 g_assert (!type->data.generic_param->owner->is_method);
2093 return type->data.generic_param->owner->owner.klass->image == image;
2095 return type->data.generic_param->image == image;
2097 case MONO_TYPE_MVAR:
2098 if (type->data.generic_param->owner) {
2099 g_assert (type->data.generic_param->owner->is_method);
2100 if (!type->data.generic_param->owner->owner.method)
2101 /* RefEmit created generic param whose method is not finished */
2103 return type->data.generic_param->owner->owner.method->klass->image == image;
2105 return type->data.generic_param->image == image;
2108 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2109 return image == mono_class_from_mono_type (type)->image;
2116 } CleanForImageUserData;
2119 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2121 MonoGenericClass *gclass = key;
2122 CleanForImageUserData *user_data = data;
2124 if (!gclass_in_image (gclass, user_data->image))
2127 user_data->list = g_slist_prepend (user_data->list, gclass);
2132 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2134 MonoGenericInst *ginst = key;
2135 CleanForImageUserData *user_data = data;
2137 if (!ginst_in_image (ginst, user_data->image))
2140 user_data->list = g_slist_prepend (user_data->list, ginst);
2145 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2147 MonoImage *image = data;
2148 MonoMethodInflated *method = key;
2150 return method->declaring->klass->image == image ||
2151 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2152 (method->context.method_inst && ginst_in_image (method->context.method_inst, image));
2156 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2158 MonoImage *image = data;
2159 MonoInflatedMethodSignature *sig = key;
2161 return /* signature_in_image (sig->sig, image) || */
2162 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2163 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2167 mono_metadata_clean_for_image (MonoImage *image)
2169 CleanForImageUserData ginst_data, gclass_data;
2172 /* The data structures could reference each other so we delete them in two phases */
2173 ginst_data.image = gclass_data.image = image;
2174 ginst_data.list = gclass_data.list = NULL;
2176 mono_loader_lock ();
2177 /* Collect the items to delete and remove them from the hash table */
2178 g_hash_table_foreach_steal (generic_inst_cache, steal_ginst_in_image, &ginst_data);
2179 g_hash_table_foreach_steal (generic_class_cache, steal_gclass_in_image, &gclass_data);
2180 if (generic_method_cache)
2181 g_hash_table_foreach_remove (generic_method_cache, inflated_method_in_image, image);
2182 if (generic_signature_cache)
2183 g_hash_table_foreach_remove (generic_signature_cache, inflated_signature_in_image, image);
2184 /* Delete the removed items */
2185 for (l = ginst_data.list; l; l = l->next)
2186 free_generic_inst (l->data);
2187 for (l = gclass_data.list; l; l = l->next)
2188 free_generic_class (l->data);
2189 g_slist_free (ginst_data.list);
2190 g_slist_free (gclass_data.list);
2191 mono_class_unregister_image_generic_subclasses (image);
2192 mono_loader_unlock ();
2196 free_inflated_method (MonoMethodInflated *imethod)
2199 MonoMethod *method = (MonoMethod*)imethod;
2201 if (method->signature)
2202 mono_metadata_free_inflated_signature (method->signature);
2204 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))) {
2205 MonoMethodNormal* mn = (MonoMethodNormal*) method;
2206 MonoMethodHeader *header = mn->header;
2209 /* Allocated in inflate_generic_header () */
2210 for (i = 0; i < header->num_locals; ++i)
2211 mono_metadata_free_type (header->locals [i]);
2212 g_free (header->clauses);
2221 free_generic_inst (MonoGenericInst *ginst)
2225 for (i = 0; i < ginst->type_argc; ++i)
2226 mono_metadata_free_type (ginst->type_argv [i]);
2227 g_free (ginst->type_argv);
2233 free_generic_class (MonoGenericClass *gclass)
2237 /* FIXME: The dynamic case */
2238 if (gclass->cached_class && !gclass->cached_class->image->dynamic && !mono_generic_class_is_generic_type_definition (gclass)) {
2239 MonoClass *class = gclass->cached_class;
2241 /* Allocated in mono_class_init () */
2242 g_free (class->methods);
2243 g_free (class->properties);
2244 /* Allocated in mono_generic_class_get_class () */
2245 g_free (class->interfaces);
2247 } else if (gclass->is_dynamic) {
2248 MonoDynamicGenericClass *dgclass = (MonoDynamicGenericClass *)gclass;
2250 for (i = 0; i < dgclass->count_fields; ++i) {
2251 MonoClassField *field = dgclass->fields + i;
2252 mono_metadata_free_type (field->type);
2253 g_free ((char*)field->name);
2255 for (i = 0; i < dgclass->count_properties; ++i) {
2256 MonoProperty *property = dgclass->properties + i;
2257 g_free ((char*)property->name);
2259 for (i = 0; i < dgclass->count_events; ++i) {
2260 MonoEvent *event = dgclass->events + i;
2261 g_free ((char*)event->name);
2264 g_free (dgclass->methods);
2265 g_free (dgclass->ctors);
2266 g_free (dgclass->fields);
2267 g_free (dgclass->properties);
2268 g_free (dgclass->events);
2269 g_free (dgclass->field_objects);
2270 g_free (dgclass->field_generic_types);
2271 if (!mono_generic_class_is_generic_type_definition (gclass))
2272 g_free (gclass->cached_class);
2278 free_inflated_signature (MonoInflatedMethodSignature *sig)
2280 mono_metadata_free_inflated_signature (sig->sig);
2285 * LOCKING: assumes the loader lock is held.
2288 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2291 if (!generic_method_cache)
2292 generic_method_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2293 g_hash_table_insert (generic_method_cache, method, method);
2296 if (generic_method_cache)
2297 return g_hash_table_lookup (generic_method_cache, method);
2303 * mono_metadata_get_inflated_signature:
2305 * Given an inflated signature and a generic context, return a canonical copy of the
2306 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2308 MonoMethodSignature *
2309 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2311 MonoInflatedMethodSignature helper;
2312 MonoInflatedMethodSignature *res;
2314 mono_loader_lock ();
2315 if (!generic_signature_cache)
2316 generic_signature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2319 helper.context.class_inst = context->class_inst;
2320 helper.context.method_inst = context->method_inst;
2321 res = g_hash_table_lookup (generic_signature_cache, &helper);
2323 res = g_new0 (MonoInflatedMethodSignature, 1);
2325 res->context.class_inst = context->class_inst;
2326 res->context.method_inst = context->method_inst;
2327 g_hash_table_insert (generic_signature_cache, res, res);
2330 mono_loader_unlock ();
2335 * mono_metadata_get_generic_inst:
2337 * Given a list of types, return a MonoGenericInst that represents that list.
2338 * The returned MonoGenericInst has its own copy of the list of types. The list
2339 * passed in the argument can be freed, modified or disposed of.
2343 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2345 MonoGenericInst *ginst;
2346 MonoGenericInst helper;
2349 helper.type_argc = type_argc;
2350 helper.type_argv = type_argv;
2353 for (i = 0; i < type_argc; ++i)
2354 if (mono_class_is_open_constructed_type (type_argv [i]))
2356 helper.is_open = (i < type_argc);
2358 /*dump_ginst (&helper);*/
2359 mono_loader_lock ();
2360 ginst = g_hash_table_lookup (generic_inst_cache, &helper);
2362 mono_loader_unlock ();
2363 /*g_print (" found cached\n");*/
2367 ginst = g_new0 (MonoGenericInst, 1);
2368 ginst->type_argc = type_argc;
2369 ginst->type_argv = g_new (MonoType*, type_argc);
2370 ginst->id = ++next_generic_inst_id;
2371 ginst->is_open = helper.is_open;
2373 for (i = 0; i < type_argc; ++i)
2374 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2376 g_hash_table_insert (generic_inst_cache, ginst, ginst);
2378 mono_loader_unlock ();
2379 /*g_print (" inserted\n");*/
2384 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2386 MonoGenericContainer *container = container_class->generic_container;
2388 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2390 return inst == container->context.class_inst;
2394 * mono_metadata_lookup_generic_class:
2396 * Returns a MonoGenericClass with the given properties.
2400 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2402 MonoGenericClass *gclass;
2403 MonoGenericClass helper;
2404 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2406 helper.container_class = container_class;
2407 helper.context.class_inst = inst;
2408 helper.context.method_inst = NULL;
2409 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2410 helper.is_tb_open = is_tb_open;
2411 helper.cached_class = NULL;
2413 mono_loader_lock ();
2415 gclass = g_hash_table_lookup (generic_class_cache, &helper);
2417 /* A tripwire just to keep us honest */
2418 g_assert (!helper.cached_class);
2421 mono_loader_unlock ();
2426 MonoDynamicGenericClass *dgclass = g_new0 (MonoDynamicGenericClass, 1);
2427 gclass = &dgclass->generic_class;
2428 gclass->is_dynamic = 1;
2430 gclass = g_new0 (MonoGenericClass, 1);
2433 gclass->is_tb_open = is_tb_open;
2434 gclass->container_class = container_class;
2435 gclass->context.class_inst = inst;
2436 gclass->context.method_inst = NULL;
2437 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2438 gclass->cached_class = container_class;
2440 g_hash_table_insert (generic_class_cache, gclass, gclass);
2442 mono_loader_unlock ();
2448 * mono_metadata_inflate_generic_inst:
2450 * Instantiate the generic instance @ginst with the context @context.
2454 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context)
2456 MonoType **type_argv;
2457 MonoGenericInst *nginst;
2460 if (!ginst->is_open)
2463 type_argv = g_new0 (MonoType*, ginst->type_argc);
2465 for (i = 0; i < ginst->type_argc; i++)
2466 type_argv [i] = mono_class_inflate_generic_type (ginst->type_argv [i], context);
2468 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2470 for (i = 0; i < ginst->type_argc; i++)
2471 mono_metadata_free_type (type_argv [i]);
2478 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2479 int count, const char *ptr, const char **rptr)
2481 MonoType **type_argv;
2482 MonoGenericInst *ginst;
2485 type_argv = g_new0 (MonoType*, count);
2487 for (i = 0; i < count; i++) {
2488 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2499 ginst = mono_metadata_get_generic_inst (count, type_argv);
2507 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2508 const char *ptr, const char **rptr)
2510 MonoGenericInst *inst;
2515 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2519 gklass = mono_class_from_mono_type (gtype);
2520 if (!gklass->generic_container)
2523 count = mono_metadata_decode_value (ptr, &ptr);
2524 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
2531 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
2537 * @gc: The generic container to normalize
2538 * @type: The kind of generic parameters the resulting generic-container should contain
2541 static MonoGenericContainer *
2542 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
2544 gboolean is_var = (type == MONO_TYPE_VAR);
2548 g_assert (is_var || type == MONO_TYPE_MVAR);
2551 if (gc->is_method || gc->parent)
2553 * The current MonoGenericContainer is a generic method -> its `parent'
2554 * points to the containing class'es container.
2563 * mono_metadata_parse_generic_param:
2564 * @generic_container: Our MonoClass's or MonoMethodNormal's MonoGenericContainer;
2565 * see mono_metadata_parse_type_full() for details.
2566 * Internal routine to parse a generic type parameter.
2567 * LOCKING: Assumes the loader lock is held.
2569 static MonoGenericParam *
2570 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
2571 MonoTypeEnum type, const char *ptr, const char **rptr)
2573 int index = mono_metadata_decode_value (ptr, &ptr);
2577 generic_container = select_container (generic_container, type);
2578 if (!generic_container) {
2579 /* Create dummy MonoGenericParam */
2580 MonoGenericParam *param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
2581 param->name = mono_image_alloc0 (m, 8);
2582 sprintf ((char*)param->name, "%d", index);
2589 g_assert (index < generic_container->type_argc);
2590 return &generic_container->type_params [index];
2594 * mono_metadata_get_shared_type:
2596 * Return a shared instance of TYPE, if available, NULL otherwise.
2597 * Shared MonoType instances help save memory. Their contents should not be modified
2598 * by the caller. They do not need to be freed as their lifetime is bound by either
2599 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
2600 * instance they are embedded in. If they are freed, they should be freed using
2601 * mono_metadata_free_type () instead of g_free ().
2604 mono_metadata_get_shared_type (MonoType *type)
2608 /* No need to use locking since nobody is modifying the hash table */
2609 if ((cached = g_hash_table_lookup (type_cache, type)))
2612 switch (type->type){
2613 case MONO_TYPE_CLASS:
2614 case MONO_TYPE_VALUETYPE:
2615 if (type == &type->data.klass->byval_arg)
2617 if (type == &type->data.klass->this_arg)
2626 * do_mono_metadata_parse_type:
2627 * @type: MonoType to be filled in with the return value
2629 * @generic_context: generics_context
2630 * @ptr: pointer to the encoded type
2631 * @rptr: pointer where the end of the encoded type is saved
2633 * Internal routine used to "fill" the contents of @type from an
2634 * allocated pointer. This is done this way to avoid doing too
2635 * many mini-allocations (particularly for the MonoFieldType which
2636 * most of the time is just a MonoType, but sometimes might be augmented).
2638 * This routine is used by mono_metadata_parse_type and
2639 * mono_metadata_parse_field_type
2641 * This extracts a Type as specified in Partition II (22.2.12)
2643 * Returns: FALSE if the type could not be loaded
2646 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2647 const char *ptr, const char **rptr)
2650 type->type = mono_metadata_decode_value (ptr, &ptr);
2652 switch (type->type){
2653 case MONO_TYPE_VOID:
2654 case MONO_TYPE_BOOLEAN:
2655 case MONO_TYPE_CHAR:
2668 case MONO_TYPE_STRING:
2669 case MONO_TYPE_OBJECT:
2670 case MONO_TYPE_TYPEDBYREF:
2672 case MONO_TYPE_VALUETYPE:
2673 case MONO_TYPE_CLASS: {
2675 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
2676 type->data.klass = mono_class_get (m, token);
2677 if (!type->data.klass)
2681 case MONO_TYPE_SZARRAY: {
2682 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2685 type->data.klass = mono_class_from_mono_type (etype);
2689 type->data.type = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2690 if (!type->data.type)
2693 case MONO_TYPE_FNPTR:
2694 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
2696 case MONO_TYPE_ARRAY:
2697 type->data.array = mono_metadata_parse_array_full (m, container, ptr, &ptr);
2699 case MONO_TYPE_MVAR:
2701 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
2703 case MONO_TYPE_GENERICINST:
2704 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
2707 g_error ("type 0x%02x not handled in do_mono_metadata_parse_type", type->type);
2716 * mono_metadata_free_type:
2717 * @type: type to free
2719 * Free the memory allocated for type @type which is allocated on the heap.
2722 mono_metadata_free_type (MonoType *type)
2724 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
2727 switch (type->type){
2728 case MONO_TYPE_OBJECT:
2729 case MONO_TYPE_STRING:
2730 if (!type->data.klass)
2733 case MONO_TYPE_CLASS:
2734 case MONO_TYPE_VALUETYPE:
2735 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
2739 mono_metadata_free_type (type->data.type);
2741 case MONO_TYPE_FNPTR:
2742 mono_metadata_free_method_signature (type->data.method);
2744 case MONO_TYPE_ARRAY:
2745 mono_metadata_free_array (type->data.array);
2754 hex_dump (const char *buffer, int base, int count)
2756 int show_header = 1;
2764 for (i = 0; i < count; i++){
2767 printf ("\n0x%08x: ", (unsigned char) base + i);
2769 printf ("%02x ", (unsigned char) (buffer [i]));
2776 * @mh: The Method header
2777 * @ptr: Points to the beginning of the Section Data (25.3)
2780 parse_section_data (MonoImage *m, MonoMethodHeader *mh, const unsigned char *ptr)
2782 unsigned char sect_data_flags;
2783 const unsigned char *sptr;
2785 guint32 sect_data_len;
2788 /* align on 32-bit boundary */
2789 sptr = ptr = dword_align (ptr);
2790 sect_data_flags = *ptr;
2793 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
2795 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
2798 sect_data_len = ptr [0];
2802 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
2803 hex_dump (sptr, 0, sect_data_len+8);
2804 g_print ("\nheader: ");
2805 hex_dump (sptr-4, 0, 4);
2809 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
2810 const unsigned char *p = dword_align (ptr);
2812 mh->num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
2813 /* we could just store a pointer if we don't need to byteswap */
2814 mono_loader_lock ();
2815 mh->clauses = mono_image_alloc0 (m, sizeof (MonoExceptionClause) * mh->num_clauses);
2816 mono_loader_unlock ();
2817 for (i = 0; i < mh->num_clauses; ++i) {
2818 MonoExceptionClause *ec = &mh->clauses [i];
2821 ec->flags = read32 (p);
2822 ec->try_offset = read32 (p + 4);
2823 ec->try_len = read32 (p + 8);
2824 ec->handler_offset = read32 (p + 12);
2825 ec->handler_len = read32 (p + 16);
2826 tof_value = read32 (p + 20);
2829 ec->flags = read16 (p);
2830 ec->try_offset = read16 (p + 2);
2831 ec->try_len = *(p + 4);
2832 ec->handler_offset = read16 (p + 5);
2833 ec->handler_len = *(p + 7);
2834 tof_value = read32 (p + 8);
2837 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2838 ec->data.filter_offset = tof_value;
2839 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
2840 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
2842 ec->data.catch_class = NULL;
2844 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
2848 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
2849 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
2856 * mono_metadata_parse_mh_full:
2857 * @m: metadata context
2858 * @generic_context: generics context
2859 * @ptr: pointer to the method header.
2861 * Decode the method header at @ptr, including pointer to the IL code,
2862 * info about local variables and optional exception tables.
2863 * This is a Mono runtime internal function.
2865 * LOCKING: Acquires the loader lock.
2867 * Returns: a MonoMethodHeader allocated from the image mempool.
2870 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
2872 MonoMethodHeader *mh;
2873 unsigned char flags = *(const unsigned char *) ptr;
2874 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
2876 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
2877 const unsigned char *code;
2880 g_return_val_if_fail (ptr != NULL, NULL);
2883 case METHOD_HEADER_TINY_FORMAT:
2884 mono_loader_lock ();
2885 mh = mono_image_alloc0 (m, sizeof (MonoMethodHeader));
2886 mono_loader_unlock ();
2889 local_var_sig_tok = 0;
2890 mh->code_size = flags >> 2;
2891 mh->code = (unsigned char*)ptr;
2893 case METHOD_HEADER_TINY_FORMAT1:
2894 mono_loader_lock ();
2895 mh = mono_image_alloc0 (m, sizeof (MonoMethodHeader));
2896 mono_loader_unlock ();
2899 local_var_sig_tok = 0;
2902 * The spec claims 3 bits, but the Beta2 is
2905 mh->code_size = flags >> 2;
2906 mh->code = (unsigned char*)ptr;
2908 case METHOD_HEADER_FAT_FORMAT:
2909 fat_flags = read16 (ptr);
2911 hsize = (fat_flags >> 12) & 0xf;
2912 max_stack = read16 (ptr);
2914 code_size = read32 (ptr);
2916 local_var_sig_tok = read32 (ptr);
2919 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
2924 code = (unsigned char*)ptr;
2926 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
2930 * There are more sections
2932 ptr = (char*)code + code_size;
2938 if (local_var_sig_tok) {
2939 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
2940 const char *locals_ptr;
2941 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
2942 int len=0, i, bsize;
2944 mono_metadata_decode_row (t, (local_var_sig_tok & 0xffffff)-1, cols, 1);
2945 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
2946 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
2947 if (*locals_ptr != 0x07)
2948 g_warning ("wrong signature for locals blob");
2950 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
2951 mono_loader_lock ();
2952 mh = mono_image_alloc0 (m, sizeof (MonoMethodHeader) + (len - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
2953 mono_loader_unlock ();
2954 mh->num_locals = len;
2955 for (i = 0; i < len; ++i) {
2956 mh->locals [i] = mono_metadata_parse_type_full (
2957 m, container, MONO_PARSE_LOCAL, 0, locals_ptr, &locals_ptr);
2958 if (!mh->locals [i]) {
2963 mono_loader_lock ();
2964 mh = mono_image_alloc0 (m, sizeof (MonoMethodHeader));
2965 mono_loader_unlock ();
2968 mh->code_size = code_size;
2969 mh->max_stack = max_stack;
2970 mh->init_locals = init_locals;
2971 if (fat_flags & METHOD_HEADER_MORE_SECTS)
2972 parse_section_data (m, mh, (const unsigned char*)ptr);
2977 * mono_metadata_parse_mh:
2978 * @generic_context: generics context
2979 * @ptr: pointer to the method header.
2981 * Decode the method header at @ptr, including pointer to the IL code,
2982 * info about local variables and optional exception tables.
2983 * This is a Mono runtime internal function.
2985 * Returns: a MonoMethodHeader.
2988 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
2990 MonoMethodHeader *res;
2992 mono_loader_lock ();
2994 res = mono_metadata_parse_mh_full (m, NULL, ptr);
2996 mono_loader_unlock ();
3002 * mono_metadata_free_mh:
3003 * @mh: a method header
3005 * Free the memory allocated for the method header.
3006 * This is a Mono runtime internal function.
3009 mono_metadata_free_mh (MonoMethodHeader *mh)
3011 /* Allocated from the mempool */
3015 * mono_method_header_get_code:
3016 * @header: a MonoMethodHeader pointer
3017 * @code_size: memory location for returning the code size
3018 * @max_stack: memory location for returning the max stack
3020 * Method header accessor to retreive info about the IL code properties:
3021 * a pointer to the IL code itself, the size of the code and the max number
3022 * of stack slots used by the code.
3024 * Returns: pointer to the IL code represented by the method header.
3026 const unsigned char*
3027 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3030 *code_size = header->code_size;
3032 *max_stack = header->max_stack;
3033 return header->code;
3037 * mono_method_header_get_locals:
3038 * @header: a MonoMethodHeader pointer
3039 * @num_locals: memory location for returning the number of local variables
3040 * @init_locals: memory location for returning the init_locals flag
3042 * Method header accessor to retreive info about the local variables:
3043 * an array of local types, the number of locals and whether the locals
3044 * are supposed to be initialized to 0 on method entry
3046 * Returns: pointer to an array of types of the local variables
3049 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3052 *num_locals = header->num_locals;
3054 *init_locals = header->init_locals;
3055 return header->locals;
3059 * mono_method_header_get_num_clauses:
3060 * @header: a MonoMethodHeader pointer
3062 * Method header accessor to retreive the number of exception clauses.
3064 * Returns: the number of exception clauses present
3067 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3069 return header->num_clauses;
3073 * mono_method_header_get_clauses:
3074 * @header: a MonoMethodHeader pointer
3075 * @method: MonoMethod the header belongs to
3076 * @iter: pointer to a iterator
3077 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3079 * Get the info about the exception clauses in the method. Set *iter to NULL to
3080 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3081 * At each iteration, the structure pointed to by clause if filled with the
3082 * exception clause information.
3084 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3088 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3090 MonoExceptionClause *sc;
3091 /* later we'll be able to use this interface to parse the clause info on demand,
3092 * without allocating anything.
3094 if (!iter || !header->num_clauses)
3097 *iter = sc = header->clauses;
3103 if (sc < header->clauses + header->num_clauses) {
3112 * mono_metadata_parse_field_type:
3113 * @m: metadata context to extract information from
3114 * @ptr: pointer to the field signature
3115 * @rptr: pointer updated to match the end of the decoded stream
3117 * Parses the field signature, and returns the type information for it.
3119 * Returns: The MonoType that was extracted from @ptr.
3122 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3124 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3128 * mono_metadata_parse_param:
3129 * @m: metadata context to extract information from
3130 * @ptr: pointer to the param signature
3131 * @rptr: pointer updated to match the end of the decoded stream
3133 * Parses the param signature, and returns the type information for it.
3135 * Returns: The MonoType that was extracted from @ptr.
3138 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3140 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3144 * mono_metadata_token_from_dor:
3145 * @dor_token: A TypeDefOrRef coded index
3147 * dor_token is a TypeDefOrRef coded index: it contains either
3148 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3149 * bits contain an index into the table.
3151 * Returns: an expanded token
3154 mono_metadata_token_from_dor (guint32 dor_index)
3158 table = dor_index & 0x03;
3159 idx = dor_index >> 2;
3162 case 0: /* TypeDef */
3163 return MONO_TOKEN_TYPE_DEF | idx;
3164 case 1: /* TypeRef */
3165 return MONO_TOKEN_TYPE_REF | idx;
3166 case 2: /* TypeSpec */
3167 return MONO_TOKEN_TYPE_SPEC | idx;
3169 g_assert_not_reached ();
3176 * We use this to pass context information to the row locator
3179 int idx; /* The index that we are trying to locate */
3180 int col_idx; /* The index in the row where idx may be stored */
3181 MonoTableInfo *t; /* pointer to the table */
3186 * How the row locator works.
3191 * ___|___------> _______
3194 * A column in the rows of table A references an index in table B.
3195 * For example A may be the TYPEDEF table and B the METHODDEF table.
3197 * Given an index in table B we want to get the row in table A
3198 * where the column n references our index in B.
3200 * In the locator_t structure:
3202 * col_idx is the column number
3203 * index is the index in table B
3204 * result will be the index in table A
3207 * Table A Table B column (in table A)
3208 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3209 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3210 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3211 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3212 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3214 * Note that we still don't support encoded indexes.
3218 typedef_locator (const void *a, const void *b)
3220 locator_t *loc = (locator_t *) a;
3221 const char *bb = (const char *) b;
3222 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3223 guint32 col, col_next;
3225 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3231 * Need to check that the next row is valid.
3233 if (typedef_index + 1 < loc->t->rows) {
3234 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3235 if (loc->idx >= col_next)
3238 if (col == col_next)
3242 loc->result = typedef_index;
3248 table_locator (const void *a, const void *b)
3250 locator_t *loc = (locator_t *) a;
3251 const char *bb = (const char *) b;
3252 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3255 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3257 if (loc->idx == col) {
3258 loc->result = table_index;
3268 declsec_locator (const void *a, const void *b)
3270 locator_t *loc = (locator_t *) a;
3271 const char *bb = (const char *) b;
3272 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3275 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3277 if (loc->idx == col) {
3278 loc->result = table_index;
3290 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3291 * which contains IDX.
3294 search_ptr_table (MonoImage *image, int table, int idx)
3296 MonoTableInfo *ptrdef = &image->tables [table];
3299 /* Use a linear search to find our index in the table */
3300 for (i = 0; i < ptrdef->rows; i ++)
3301 /* All the Ptr tables have the same structure */
3302 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3305 if (i < ptrdef->rows)
3312 * mono_metadata_typedef_from_field:
3313 * @meta: metadata context
3314 * @index: FieldDef token
3316 * Returns: the 1-based index into the TypeDef table of the type that
3317 * declared the field described by @index, or 0 if not found.
3320 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3322 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3328 loc.idx = mono_metadata_token_index (index);
3329 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3332 if (meta->uncompressed_metadata)
3333 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3335 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3336 g_assert_not_reached ();
3338 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3339 return loc.result + 1;
3343 * mono_metadata_typedef_from_method:
3344 * @meta: metadata context
3345 * @index: MethodDef token
3347 * Returns: the 1-based index into the TypeDef table of the type that
3348 * declared the method described by @index. 0 if not found.
3351 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3353 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3359 loc.idx = mono_metadata_token_index (index);
3360 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3363 if (meta->uncompressed_metadata)
3364 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3366 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3367 g_assert_not_reached ();
3369 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3370 return loc.result + 1;
3374 * mono_metadata_interfaces_from_typedef_full:
3375 * @meta: metadata context
3376 * @index: typedef token
3378 * The array of interfaces that the @index typedef token implements is returned in
3379 * @interfaces. The number of elemnts in the array is returned in @count.
3381 * LOCKING: Assumes the loader lock is held.
3383 * Returns: TRUE on success, FALSE on failure.
3386 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, MonoGenericContext *context)
3388 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3391 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3400 loc.idx = mono_metadata_token_index (index);
3401 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3404 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3409 * We may end up in the middle of the rows...
3412 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
3418 while (pos < tdef->rows) {
3419 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3420 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3425 mono_loader_lock ();
3426 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
3427 mono_loader_unlock ();
3430 while (pos < tdef->rows) {
3433 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3434 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3436 iface = mono_class_get_full (
3437 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
3440 result [pos - start] = iface;
3443 *count = pos - start;
3444 *interfaces = result;
3449 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
3451 MonoClass **interfaces;
3454 mono_loader_lock ();
3455 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, NULL);
3456 mono_loader_unlock ();
3464 * mono_metadata_nested_in_typedef:
3465 * @meta: metadata context
3466 * @index: typedef token
3468 * Returns: the 1-based index into the TypeDef table of the type
3469 * where the type described by @index is nested.
3470 * Retruns 0 if @index describes a non-nested type.
3473 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
3475 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3481 loc.idx = mono_metadata_token_index (index);
3482 loc.col_idx = MONO_NESTED_CLASS_NESTED;
3485 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3488 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3489 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
3493 * mono_metadata_nesting_typedef:
3494 * @meta: metadata context
3495 * @index: typedef token
3497 * Returns: the 1-based index into the TypeDef table of the first type
3498 * that is nested inside the type described by @index. The search starts at
3499 * @start_index. returns 0 if no such type is found.
3502 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
3504 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3506 guint32 class_index = mono_metadata_token_index (index);
3511 start = start_index;
3513 while (start <= tdef->rows) {
3514 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
3520 if (start > tdef->rows)
3527 * mono_metadata_packing_from_typedef:
3528 * @meta: metadata context
3529 * @index: token representing a type
3531 * Returns: the info stored in the ClassLAyout table for the given typedef token
3532 * into the @packing and @size pointers.
3533 * Returns 0 if the info is not found.
3536 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
3538 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
3540 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
3545 loc.idx = mono_metadata_token_index (index);
3546 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
3549 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3552 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
3554 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
3556 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
3558 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3559 return loc.result + 1;
3563 * mono_metadata_custom_attrs_from_index:
3564 * @meta: metadata context
3565 * @index: token representing the parent
3567 * Returns: the 1-based index into the CustomAttribute table of the first
3568 * attribute which belongs to the metadata object described by @index.
3569 * Returns 0 if no such attribute is found.
3572 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
3574 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
3581 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
3584 /* FIXME: Index translation */
3586 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3589 /* Find the first entry by searching backwards */
3590 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
3593 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3594 return loc.result + 1;
3598 * mono_metadata_declsec_from_index:
3599 * @meta: metadata context
3600 * @index: token representing the parent
3602 * Returns: the 0-based index into the DeclarativeSecurity table of the first
3603 * attribute which belongs to the metadata object described by @index.
3604 * Returns -1 if no such attribute is found.
3607 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
3609 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
3616 loc.col_idx = MONO_DECL_SECURITY_PARENT;
3619 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
3622 /* Find the first entry by searching backwards */
3623 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
3631 mono_backtrace (int limit)
3636 backtrace (array, limit);
3637 names = backtrace_symbols (array, limit);
3638 for (i =0; i < limit; ++i) {
3639 g_print ("\t%s\n", names [i]);
3646 /*#define __alignof__(a) sizeof(a)*/
3647 #define __alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
3652 * @t: the type to return the size of
3654 * Returns: the number of bytes required to hold an instance of this
3658 mono_type_size (MonoType *t, int *align)
3665 *align = __alignof__(gpointer);
3666 return sizeof (gpointer);
3670 case MONO_TYPE_VOID:
3673 case MONO_TYPE_BOOLEAN:
3674 *align = __alignof__(gint8);
3678 *align = __alignof__(gint8);
3680 case MONO_TYPE_CHAR:
3683 *align = __alignof__(gint16);
3687 *align = __alignof__(gint32);
3690 *align = __alignof__(float);
3694 *align = __alignof__(gint64);
3697 *align = __alignof__(double);
3701 *align = __alignof__(gpointer);
3702 return sizeof (gpointer);
3703 case MONO_TYPE_STRING:
3704 *align = __alignof__(gpointer);
3705 return sizeof (gpointer);
3706 case MONO_TYPE_OBJECT:
3707 *align = __alignof__(gpointer);
3708 return sizeof (gpointer);
3709 case MONO_TYPE_VALUETYPE: {
3710 if (t->data.klass->enumtype)
3711 return mono_type_size (t->data.klass->enum_basetype, align);
3713 return mono_class_value_size (t->data.klass, (guint32*)align);
3715 case MONO_TYPE_CLASS:
3716 case MONO_TYPE_SZARRAY:
3718 case MONO_TYPE_FNPTR:
3719 case MONO_TYPE_ARRAY:
3720 *align = __alignof__(gpointer);
3721 return sizeof (gpointer);
3722 case MONO_TYPE_TYPEDBYREF:
3723 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
3724 case MONO_TYPE_GENERICINST: {
3725 MonoGenericClass *gclass = t->data.generic_class;
3726 MonoClass *container_class = gclass->container_class;
3728 // g_assert (!gclass->inst->is_open);
3730 if (container_class->valuetype) {
3731 if (container_class->enumtype)
3732 return mono_type_size (container_class->enum_basetype, align);
3734 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3736 *align = __alignof__(gpointer);
3737 return sizeof (gpointer);
3741 case MONO_TYPE_MVAR:
3742 /* FIXME: Martin, this is wrong. */
3743 *align = __alignof__(gpointer);
3744 return sizeof (gpointer);
3746 g_error ("mono_type_size: type 0x%02x unknown", t->type);
3752 * mono_type_stack_size:
3753 * @t: the type to return the size it uses on the stack
3755 * Returns: the number of bytes required to hold an instance of this
3756 * type on the runtime stack
3759 mono_type_stack_size (MonoType *t, int *align)
3761 return mono_type_stack_size_internal (t, align, FALSE);
3765 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
3769 g_assert (t != NULL);
3775 *align = __alignof__(gpointer);
3776 return sizeof (gpointer);
3780 case MONO_TYPE_BOOLEAN:
3781 case MONO_TYPE_CHAR:
3790 case MONO_TYPE_STRING:
3791 case MONO_TYPE_OBJECT:
3792 case MONO_TYPE_CLASS:
3793 case MONO_TYPE_SZARRAY:
3795 case MONO_TYPE_FNPTR:
3796 case MONO_TYPE_ARRAY:
3797 *align = __alignof__(gpointer);
3798 return sizeof (gpointer);
3800 case MONO_TYPE_MVAR:
3801 g_assert (allow_open);
3802 *align = __alignof__(gpointer);
3803 return sizeof (gpointer);
3804 case MONO_TYPE_TYPEDBYREF:
3805 *align = __alignof__(gpointer);
3806 return sizeof (gpointer) * 3;
3808 *align = __alignof__(float);
3809 return sizeof (float);
3812 *align = __alignof__(gint64);
3813 return sizeof (gint64);
3815 *align = __alignof__(double);
3816 return sizeof (double);
3817 case MONO_TYPE_VALUETYPE: {
3820 if (t->data.klass->enumtype)
3821 return mono_type_stack_size_internal (t->data.klass->enum_basetype, align, allow_open);
3823 size = mono_class_value_size (t->data.klass, (guint32*)align);
3825 *align = *align + __alignof__(gpointer) - 1;
3826 *align &= ~(__alignof__(gpointer) - 1);
3828 size += sizeof (gpointer) - 1;
3829 size &= ~(sizeof (gpointer) - 1);
3834 case MONO_TYPE_GENERICINST: {
3835 MonoGenericClass *gclass = t->data.generic_class;
3836 MonoClass *container_class = gclass->container_class;
3839 g_assert (!gclass->context.class_inst->is_open);
3841 if (container_class->valuetype) {
3842 if (container_class->enumtype)
3843 return mono_type_stack_size_internal (container_class->enum_basetype, align, allow_open);
3845 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3847 *align = *align + __alignof__(gpointer) - 1;
3848 *align &= ~(__alignof__(gpointer) - 1);
3850 size += sizeof (gpointer) - 1;
3851 size &= ~(sizeof (gpointer) - 1);
3856 *align = __alignof__(gpointer);
3857 return sizeof (gpointer);
3861 g_error ("type 0x%02x unknown", t->type);
3867 mono_type_generic_inst_is_valuetype (MonoType *type)
3869 g_assert (type->type == MONO_TYPE_GENERICINST);
3870 return type->data.generic_class->container_class->valuetype;
3874 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
3876 return gclass->container_class->valuetype;
3880 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
3882 MonoGenericInst *i1 = g1->context.class_inst;
3883 MonoGenericInst *i2 = g2->context.class_inst;
3885 if (g1->is_dynamic != g2->is_dynamic)
3887 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
3889 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
3891 return g1->is_tb_open == g2->is_tb_open;
3895 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
3897 MonoGenericInst *i1 = g1->context.class_inst;
3898 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
3900 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
3902 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
3904 return !g1->is_tb_open;
3908 mono_metadata_generic_context_hash (const MonoGenericContext *context)
3910 /* FIXME: check if this seed is good enough */
3911 guint hash = 0xc01dfee7;
3912 if (context->class_inst)
3913 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
3914 if (context->method_inst)
3915 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
3920 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
3922 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
3926 * mono_metadata_type_hash:
3929 * Computes an hash value for @t1 to be used in GHashTable.
3932 mono_metadata_type_hash (MonoType *t1)
3934 guint hash = t1->type;
3936 hash |= t1->byref << 6; /* do not collide with t1->type values */
3938 case MONO_TYPE_VALUETYPE:
3939 case MONO_TYPE_CLASS:
3940 case MONO_TYPE_SZARRAY:
3941 /* check if the distribution is good enough */
3942 return ((hash << 5) - hash) ^ g_str_hash (t1->data.klass->name);
3944 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
3945 case MONO_TYPE_ARRAY:
3946 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
3947 case MONO_TYPE_GENERICINST:
3948 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
3954 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
3958 if (p1->num != p2->num)
3961 if (p1->owner == p2->owner)
3965 * If `signature_only' is true, we're comparing two (method) signatures.
3966 * In this case, the owner of two type parameters doesn't need to match.
3969 return signature_only;
3973 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
3977 if (c1->generic_class && c2->generic_class)
3978 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
3979 if (c1->generic_class && c2->generic_container)
3980 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
3981 if (c1->generic_container && c2->generic_class)
3982 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
3983 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
3984 return mono_metadata_generic_param_equal (
3985 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
3986 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
3987 return mono_metadata_generic_param_equal (
3988 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
3989 if (signature_only &&
3990 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
3991 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
3996 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
3998 gpointer iter1 = 0, iter2 = 0;
4002 if (s1->call_convention != s2->call_convention)
4004 if (s1->sentinelpos != s2->sentinelpos)
4006 if (s1->hasthis != s2->hasthis)
4008 if (s1->explicit_this != s2->explicit_this)
4010 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4012 if (s1->param_count != s2->param_count)
4016 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4017 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4019 if (t1 == NULL || t2 == NULL)
4021 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4027 * mono_metadata_type_equal:
4031 * Determine if @t1 and @t2 represent the same type.
4032 * Returns: #TRUE if @t1 and @t2 are equal.
4035 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4037 if (t1->type != t2->type || t1->byref != t2->byref)
4041 case MONO_TYPE_VOID:
4042 case MONO_TYPE_BOOLEAN:
4043 case MONO_TYPE_CHAR:
4054 case MONO_TYPE_STRING:
4057 case MONO_TYPE_OBJECT:
4058 case MONO_TYPE_TYPEDBYREF:
4060 case MONO_TYPE_VALUETYPE:
4061 case MONO_TYPE_CLASS:
4062 case MONO_TYPE_SZARRAY:
4063 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4065 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4066 case MONO_TYPE_ARRAY:
4067 if (t1->data.array->rank != t2->data.array->rank)
4069 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4070 case MONO_TYPE_GENERICINST:
4071 return _mono_metadata_generic_class_equal (
4072 t1->data.generic_class, t2->data.generic_class, signature_only);
4074 return mono_metadata_generic_param_equal (
4075 t1->data.generic_param, t2->data.generic_param, signature_only);
4076 case MONO_TYPE_MVAR:
4077 return mono_metadata_generic_param_equal (
4078 t1->data.generic_param, t2->data.generic_param, signature_only);
4079 case MONO_TYPE_FNPTR:
4080 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4082 g_error ("implement type compare for %0x!", t1->type);
4090 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
4092 return do_mono_metadata_type_equal (t1, t2, FALSE);
4096 * mono_metadata_type_equal_full:
4099 * @signature_only: if signature only comparison should be made
4101 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
4102 * behaves the same way as mono_metadata_type_equal.
4103 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
4104 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
4107 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
4109 return do_mono_metadata_type_equal (t1, t2, signature_only);
4113 * mono_metadata_signature_equal:
4114 * @sig1: a signature
4115 * @sig2: another signature
4117 * Determine if @sig1 and @sig2 represent the same signature, with the
4118 * same number of arguments and the same types.
4119 * Returns: #TRUE if @sig1 and @sig2 are equal.
4122 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4126 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4129 if (sig1->generic_param_count != sig2->generic_param_count)
4133 * We're just comparing the signatures of two methods here:
4135 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4136 * U and V are equal here.
4138 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4141 for (i = 0; i < sig1->param_count; i++) {
4142 MonoType *p1 = sig1->params[i];
4143 MonoType *p2 = sig2->params[i];
4145 /* if (p1->attrs != p2->attrs)
4148 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4152 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4158 * mono_metadata_type_dup:
4159 * @mp: mempool to use
4160 * @original: type to duplicate
4162 * Returns: copy of type allocated from mempool (or from the heap, if @mp is null).
4165 mono_metadata_type_dup (MonoMemPool *mp, const MonoType *o)
4168 int sizeof_o = sizeof (MonoType);
4170 sizeof_o += (o->num_mods - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod);
4172 mono_loader_lock ();
4173 r = mp ? mono_mempool_alloc0 (mp, sizeof_o) : g_malloc (sizeof_o);
4174 mono_loader_unlock ();
4176 memcpy (r, o, sizeof_o);
4178 if (o->type == MONO_TYPE_PTR) {
4179 r->data.type = mono_metadata_type_dup (mp, o->data.type);
4180 } else if (o->type == MONO_TYPE_ARRAY) {
4181 r->data.array = mono_dup_array_type (mp, o->data.array);
4182 } else if (o->type == MONO_TYPE_FNPTR) {
4183 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
4184 r->data.method = mono_metadata_signature_deep_dup (mp, o->data.method);
4190 mono_signature_hash (MonoMethodSignature *sig)
4192 guint i, res = sig->ret->type;
4194 for (i = 0; i < sig->param_count; i++)
4195 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4201 * mono_metadata_encode_value:
4202 * @value: value to encode
4203 * @buf: buffer where to write the compressed representation
4204 * @endbuf: pointer updated to point at the end of the encoded output
4206 * Encodes the value @value in the compressed representation used
4207 * in metadata and stores the result in @buf. @buf needs to be big
4208 * enough to hold the data (4 bytes).
4211 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4217 else if (value < 0x4000) {
4218 p [0] = 0x80 | (value >> 8);
4219 p [1] = value & 0xff;
4222 p [0] = (value >> 24) | 0xc0;
4223 p [1] = (value >> 16) & 0xff;
4224 p [2] = (value >> 8) & 0xff;
4225 p [3] = value & 0xff;
4233 * mono_metadata_field_info:
4234 * @meta: the Image the field is defined in
4235 * @index: the index in the field table representing the field
4236 * @offset: a pointer to an integer where to store the offset that
4237 * may have been specified for the field in a FieldLayout table
4238 * @rva: a pointer to the RVA of the field data in the image that
4239 * may have been defined in a FieldRVA table
4240 * @marshal_spec: a pointer to the marshal spec that may have been
4241 * defined for the field in a FieldMarshal table.
4243 * Gather info for field @index that may have been defined in the FieldLayout,
4244 * FieldRVA and FieldMarshal tables.
4245 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4249 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4250 MonoMarshalSpec **marshal_spec)
4252 return mono_metadata_field_info_with_mempool (NULL, meta, index, offset, rva, marshal_spec);
4256 mono_metadata_field_info_with_mempool (MonoMemPool *mempool, MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4257 MonoMarshalSpec **marshal_spec)
4259 MonoTableInfo *tdef;
4262 loc.idx = index + 1;
4263 if (meta->uncompressed_metadata)
4264 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4267 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4269 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4272 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4273 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4275 *offset = (guint32)-1;
4279 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4281 loc.col_idx = MONO_FIELD_RVA_FIELD;
4284 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4286 * LAMESPEC: There is no signature, no nothing, just the raw data.
4288 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4296 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4297 *marshal_spec = mono_metadata_parse_marshal_spec_with_mempool (mempool, p);
4304 * mono_metadata_get_constant_index:
4305 * @meta: the Image the field is defined in
4306 * @index: the token that may have a row defined in the constants table
4307 * @hint: possible position for the row
4309 * @token must be a FieldDef, ParamDef or PropertyDef token.
4311 * Returns: the index into the Constants table or 0 if not found.
4314 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4316 MonoTableInfo *tdef;
4318 guint32 index = mono_metadata_token_index (token);
4320 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4321 index <<= MONO_HASCONSTANT_BITS;
4322 switch (mono_metadata_token_table (token)) {
4323 case MONO_TABLE_FIELD:
4324 index |= MONO_HASCONSTANT_FIEDDEF;
4326 case MONO_TABLE_PARAM:
4327 index |= MONO_HASCONSTANT_PARAM;
4329 case MONO_TABLE_PROPERTY:
4330 index |= MONO_HASCONSTANT_PROPERTY;
4333 g_warning ("Not a valid token for the constant table: 0x%08x", token);
4337 loc.col_idx = MONO_CONSTANT_PARENT;
4340 /* FIXME: Index translation */
4342 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
4345 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4346 return loc.result + 1;
4352 * mono_metadata_events_from_typedef:
4353 * @meta: metadata context
4354 * @index: 0-based index (in the TypeDef table) describing a type
4356 * Returns: the 0-based index in the Event table for the events in the
4357 * type. The last event that belongs to the type (plus 1) is stored
4358 * in the @end_idx pointer.
4361 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4365 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
4373 loc.col_idx = MONO_EVENT_MAP_PARENT;
4374 loc.idx = index + 1;
4376 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4379 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
4380 if (loc.result + 1 < tdef->rows) {
4381 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
4383 end = meta->tables [MONO_TABLE_EVENT].rows;
4391 * mono_metadata_methods_from_event:
4392 * @meta: metadata context
4393 * @index: 0-based index (in the Event table) describing a event
4395 * Returns: the 0-based index in the MethodDef table for the methods in the
4396 * event. The last method that belongs to the event (plus 1) is stored
4397 * in the @end_idx pointer.
4400 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
4404 guint32 cols [MONO_METHOD_SEMA_SIZE];
4405 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4411 if (meta->uncompressed_metadata)
4412 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
4415 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4416 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
4418 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4423 * We may end up in the middle of the rows...
4426 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4432 while (end < msemt->rows) {
4433 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4434 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4443 * mono_metadata_properties_from_typedef:
4444 * @meta: metadata context
4445 * @index: 0-based index (in the TypeDef table) describing a type
4447 * Returns: the 0-based index in the Property table for the properties in the
4448 * type. The last property that belongs to the type (plus 1) is stored
4449 * in the @end_idx pointer.
4452 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4456 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
4464 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
4465 loc.idx = index + 1;
4467 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4470 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
4471 if (loc.result + 1 < tdef->rows) {
4472 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
4474 end = meta->tables [MONO_TABLE_PROPERTY].rows;
4482 * mono_metadata_methods_from_property:
4483 * @meta: metadata context
4484 * @index: 0-based index (in the PropertyDef table) describing a property
4486 * Returns: the 0-based index in the MethodDef table for the methods in the
4487 * property. The last method that belongs to the property (plus 1) is stored
4488 * in the @end_idx pointer.
4491 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
4495 guint32 cols [MONO_METHOD_SEMA_SIZE];
4496 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4502 if (meta->uncompressed_metadata)
4503 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
4506 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4507 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
4509 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4514 * We may end up in the middle of the rows...
4517 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4523 while (end < msemt->rows) {
4524 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4525 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4534 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
4537 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
4542 /* No index translation seems to be needed */
4545 loc.col_idx = MONO_IMPLMAP_MEMBER;
4546 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
4548 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4551 return loc.result + 1;
4555 * @image: context where the image is created
4556 * @type_spec: typespec token
4558 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
4562 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
4564 guint32 idx = mono_metadata_token_index (type_spec);
4566 guint32 cols [MONO_TYPESPEC_SIZE];
4569 MonoType *type, *type2;
4571 mono_loader_lock ();
4573 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4575 mono_loader_unlock ();
4579 t = &image->tables [MONO_TABLE_TYPESPEC];
4581 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
4582 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
4583 len = mono_metadata_decode_value (ptr, &ptr);
4585 type = mono_image_alloc0 (image, sizeof (MonoType));
4587 if (*ptr == MONO_TYPE_BYREF) {
4592 if (!do_mono_metadata_parse_type (type, image, NULL, ptr, &ptr)) {
4593 mono_loader_unlock ();
4597 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4600 mono_loader_unlock ();
4604 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type);
4606 mono_loader_unlock ();
4613 mono_mempool_strndup (MonoMemPool *mp, const char *data, guint len)
4617 return g_strndup (data, len);
4618 res = mono_mempool_alloc (mp, len + 1);
4619 memcpy (res, data, len);
4625 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
4627 return mono_metadata_parse_marshal_spec_with_mempool (NULL, ptr);
4631 mono_metadata_parse_marshal_spec_with_mempool (MonoMemPool *mempool, const char *ptr)
4633 MonoMarshalSpec *res;
4635 const char *start = ptr;
4637 /* fixme: this is incomplete, but I cant find more infos in the specs */
4640 res = mono_mempool_alloc0 (mempool, sizeof (MonoMarshalSpec));
4642 res = g_new0 (MonoMarshalSpec, 1);
4644 len = mono_metadata_decode_value (ptr, &ptr);
4645 res->native = *ptr++;
4647 if (res->native == MONO_NATIVE_LPARRAY) {
4648 res->data.array_data.param_num = -1;
4649 res->data.array_data.num_elem = -1;
4650 res->data.array_data.elem_mult = -1;
4652 if (ptr - start <= len)
4653 res->data.array_data.elem_type = *ptr++;
4654 if (ptr - start <= len)
4655 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
4656 if (ptr - start <= len)
4657 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4658 if (ptr - start <= len) {
4660 * LAMESPEC: Older spec versions say this parameter comes before
4661 * num_elem. Never spec versions don't talk about elem_mult at
4662 * all, but csc still emits it, and it is used to distinguish
4663 * between param_num being 0, and param_num being omitted.
4664 * So if (param_num == 0) && (num_elem > 0), then
4665 * elem_mult == 0 -> the array size is num_elem
4666 * elem_mult == 1 -> the array size is @param_num + num_elem
4668 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
4672 if (res->native == MONO_NATIVE_BYVALTSTR) {
4673 if (ptr - start <= len)
4674 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4677 if (res->native == MONO_NATIVE_BYVALARRAY) {
4678 if (ptr - start <= len)
4679 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4682 if (res->native == MONO_NATIVE_CUSTOM) {
4683 /* skip unused type guid */
4684 len = mono_metadata_decode_value (ptr, &ptr);
4686 /* skip unused native type name */
4687 len = mono_metadata_decode_value (ptr, &ptr);
4689 /* read custom marshaler type name */
4690 len = mono_metadata_decode_value (ptr, &ptr);
4691 res->data.custom_data.custom_name = mono_mempool_strndup (mempool, ptr, len);
4693 /* read cookie string */
4694 len = mono_metadata_decode_value (ptr, &ptr);
4695 res->data.custom_data.cookie = mono_mempool_strndup (mempool, ptr, len);
4698 if (res->native == MONO_NATIVE_SAFEARRAY) {
4699 res->data.safearray_data.elem_type = 0;
4700 res->data.safearray_data.num_elem = 0;
4701 if (ptr - start <= len)
4702 res->data.safearray_data.elem_type = *ptr++;
4703 if (ptr - start <= len)
4704 res->data.safearray_data.num_elem = *ptr++;
4710 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
4712 if (spec->native == MONO_NATIVE_CUSTOM) {
4713 g_free (spec->data.custom_data.custom_name);
4714 g_free (spec->data.custom_data.cookie);
4720 * mono_type_to_unmanaged:
4722 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
4723 * describing the underlying native reprensetation of the type.
4725 * In addition the value pointed by
4726 * "conv" will contain the kind of marshalling required for this
4727 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
4730 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
4731 gboolean unicode, MonoMarshalConv *conv)
4733 MonoMarshalConv dummy_conv;
4739 *conv = MONO_MARSHAL_CONV_NONE;
4742 return MONO_NATIVE_UINT;
4746 case MONO_TYPE_BOOLEAN:
4748 switch (mspec->native) {
4749 case MONO_NATIVE_VARIANTBOOL:
4750 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
4751 return MONO_NATIVE_VARIANTBOOL;
4752 case MONO_NATIVE_BOOLEAN:
4753 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4754 return MONO_NATIVE_BOOLEAN;
4755 case MONO_NATIVE_I1:
4756 case MONO_NATIVE_U1:
4757 return mspec->native;
4759 g_error ("cant marshal bool to native type %02x", mspec->native);
4762 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4763 return MONO_NATIVE_BOOLEAN;
4764 case MONO_TYPE_CHAR: return MONO_NATIVE_U2;
4765 case MONO_TYPE_I1: return MONO_NATIVE_I1;
4766 case MONO_TYPE_U1: return MONO_NATIVE_U1;
4767 case MONO_TYPE_I2: return MONO_NATIVE_I2;
4768 case MONO_TYPE_U2: return MONO_NATIVE_U2;
4769 case MONO_TYPE_I4: return MONO_NATIVE_I4;
4770 case MONO_TYPE_U4: return MONO_NATIVE_U4;
4771 case MONO_TYPE_I8: return MONO_NATIVE_I8;
4772 case MONO_TYPE_U8: return MONO_NATIVE_U8;
4773 case MONO_TYPE_R4: return MONO_NATIVE_R4;
4774 case MONO_TYPE_R8: return MONO_NATIVE_R8;
4775 case MONO_TYPE_STRING:
4777 switch (mspec->native) {
4778 case MONO_NATIVE_BSTR:
4779 *conv = MONO_MARSHAL_CONV_STR_BSTR;
4780 return MONO_NATIVE_BSTR;
4781 case MONO_NATIVE_LPSTR:
4782 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4783 return MONO_NATIVE_LPSTR;
4784 case MONO_NATIVE_LPWSTR:
4785 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4786 return MONO_NATIVE_LPWSTR;
4787 case MONO_NATIVE_LPTSTR:
4788 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
4789 return MONO_NATIVE_LPTSTR;
4790 case MONO_NATIVE_ANSIBSTR:
4791 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
4792 return MONO_NATIVE_ANSIBSTR;
4793 case MONO_NATIVE_TBSTR:
4794 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
4795 return MONO_NATIVE_TBSTR;
4796 case MONO_NATIVE_BYVALTSTR:
4798 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
4800 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
4801 return MONO_NATIVE_BYVALTSTR;
4803 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);
4807 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4808 return MONO_NATIVE_LPWSTR;
4811 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4812 return MONO_NATIVE_LPSTR;
4814 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
4815 case MONO_TYPE_VALUETYPE: /*FIXME*/
4816 if (type->data.klass->enumtype) {
4817 t = type->data.klass->enum_basetype->type;
4820 if (type->data.klass == mono_defaults.handleref_class){
4821 *conv = MONO_MARSHAL_CONV_HANDLEREF;
4822 return MONO_NATIVE_INT;
4824 return MONO_NATIVE_STRUCT;
4825 case MONO_TYPE_SZARRAY:
4826 case MONO_TYPE_ARRAY:
4828 switch (mspec->native) {
4829 case MONO_NATIVE_BYVALARRAY:
4830 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
4831 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
4833 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
4834 return MONO_NATIVE_BYVALARRAY;
4835 case MONO_NATIVE_SAFEARRAY:
4836 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
4837 return MONO_NATIVE_SAFEARRAY;
4838 case MONO_NATIVE_LPARRAY:
4839 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4840 return MONO_NATIVE_LPARRAY;
4842 g_error ("cant marshal array as native type %02x", mspec->native);
4846 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4847 return MONO_NATIVE_LPARRAY;
4848 case MONO_TYPE_I: return MONO_NATIVE_INT;
4849 case MONO_TYPE_U: return MONO_NATIVE_UINT;
4850 case MONO_TYPE_CLASS:
4851 case MONO_TYPE_OBJECT: {
4852 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
4854 switch (mspec->native) {
4855 case MONO_NATIVE_STRUCT:
4856 return MONO_NATIVE_STRUCT;
4857 case MONO_NATIVE_CUSTOM:
4858 return MONO_NATIVE_CUSTOM;
4859 case MONO_NATIVE_INTERFACE:
4860 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
4861 return MONO_NATIVE_INTERFACE;
4862 case MONO_NATIVE_IDISPATCH:
4863 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
4864 return MONO_NATIVE_IDISPATCH;
4865 case MONO_NATIVE_IUNKNOWN:
4866 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
4867 return MONO_NATIVE_IUNKNOWN;
4868 case MONO_NATIVE_FUNC:
4869 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4870 type->data.klass == mono_defaults.delegate_class ||
4871 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4872 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4873 return MONO_NATIVE_FUNC;
4877 g_error ("cant marshal object as native type %02x", mspec->native);
4880 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4881 type->data.klass == mono_defaults.delegate_class ||
4882 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4883 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4884 return MONO_NATIVE_FUNC;
4886 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
4887 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
4888 return MONO_NATIVE_INT;
4890 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
4891 return MONO_NATIVE_STRUCT;
4893 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
4894 case MONO_TYPE_GENERICINST:
4895 type = &type->data.generic_class->container_class->byval_arg;
4898 case MONO_TYPE_TYPEDBYREF:
4900 g_error ("type 0x%02x not handled in marshal", t);
4902 return MONO_NATIVE_MAX;
4906 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
4909 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
4915 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
4916 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
4918 /* FIXME: Index translation */
4920 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4923 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
4927 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
4929 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
4931 switch (tok & MONO_METHODDEFORREF_MASK) {
4932 case MONO_METHODDEFORREF_METHODDEF:
4933 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
4934 case MONO_METHODDEFORREF_METHODREF:
4935 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
4937 g_assert_not_reached ();
4942 * mono_class_get_overrides_full:
4944 * Return the method overrides belonging to class @type_token in @overrides, and
4945 * the number of overrides in @num_overrides.
4947 * Returns: TRUE on success, FALSE on failure.
4950 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
4951 MonoGenericContext *generic_context)
4954 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
4957 guint32 cols [MONO_METHODIMPL_SIZE];
4958 MonoMethod **result;
4969 loc.col_idx = MONO_METHODIMPL_CLASS;
4970 loc.idx = mono_metadata_token_index (type_token);
4972 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4978 * We may end up in the middle of the rows...
4981 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
4986 while (end < tdef->rows) {
4987 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
4993 result = g_new (MonoMethod*, num * 2);
4994 for (i = 0; i < num; ++i) {
4997 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
4998 method = method_from_method_def_or_ref (
4999 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
5002 result [i * 2] = method;
5003 method = method_from_method_def_or_ref (
5004 image, cols [MONO_METHODIMPL_BODY], generic_context);
5007 result [i * 2 + 1] = method;
5010 *overrides = result;
5012 *num_overrides = num;
5017 * mono_guid_to_string:
5019 * Converts a 16 byte Microsoft GUID to the standard string representation.
5022 mono_guid_to_string (const guint8 *guid)
5024 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5025 guid[3], guid[2], guid[1], guid[0],
5029 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
5033 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
5035 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
5036 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
5037 guint32 i, token, found;
5038 MonoClass *klass, **res;
5039 GList *cons = NULL, *tmp;
5040 MonoGenericContext *context = &container->context;
5042 *constraints = NULL;
5044 for (i = 0; i < tdef->rows; ++i) {
5045 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
5046 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
5047 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
5048 klass = mono_class_get_full (image, token, context);
5049 cons = g_list_append (cons, klass);
5052 /* contiguous list finished */
5059 res = g_new0 (MonoClass*, found + 1);
5060 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
5061 res [i] = tmp->data;
5069 * mono_metadata_get_generic_param_row:
5072 * @token: TypeOrMethodDef token, owner for GenericParam
5073 * @owner: coded token, set on return
5075 * Returns: 1-based row-id in the GenericParam table whose
5076 * owner is @token. 0 if not found.
5079 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
5081 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5088 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
5089 *owner = MONO_TYPEORMETHOD_TYPE;
5090 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5091 *owner = MONO_TYPEORMETHOD_METHOD;
5093 g_error ("wrong token %x to get_generic_param_row", token);
5096 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
5099 loc.col_idx = MONO_GENERICPARAM_OWNER;
5102 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5105 /* Find the first entry by searching backwards */
5106 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
5109 return loc.result + 1;
5113 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
5116 return mono_metadata_get_generic_param_row (image, token, &owner);
5120 * mono_metadata_load_generic_param_constraints:
5122 * Load the generic parameter constraints for the newly created generic type or method
5123 * represented by @token and @container. The @container is the new container which has
5124 * been returned by a call to mono_metadata_load_generic_params() with this @token.
5127 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
5128 MonoGenericContainer *container)
5130 guint32 start_row, i, owner;
5131 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
5133 for (i = 0; i < container->type_argc; i++)
5134 get_constraints (image, start_row + i, &container->type_params [i].constraints, container);
5138 * mono_metadata_load_generic_params:
5140 * Load the type parameters from the type or method definition @token.
5142 * Use this method after parsing a type or method definition to figure out whether it's a generic
5143 * type / method. When parsing a method definition, @parent_container points to the generic container
5144 * of the current class, if any.
5146 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
5147 * creating the type.
5149 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
5151 * LOCKING: Assumes the loader lock is held.
5154 MonoGenericContainer *
5155 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
5157 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5158 guint32 cols [MONO_GENERICPARAM_SIZE];
5159 guint32 i, owner = 0, n;
5160 MonoGenericContainer *container;
5161 MonoGenericParam *params;
5162 MonoGenericContext *context;
5164 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
5166 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5169 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
5172 params = g_realloc (params, sizeof (MonoGenericParam) * n);
5173 params [n - 1].owner = container;
5174 params [n - 1].pklass = NULL;
5175 params [n - 1].flags = cols [MONO_GENERICPARAM_FLAGS];
5176 params [n - 1].num = cols [MONO_GENERICPARAM_NUMBER];
5177 params [n - 1].name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
5178 params [n - 1].constraints = NULL;
5179 if (++i > tdef->rows)
5181 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5182 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5184 container->type_argc = n;
5185 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParam) * n);
5186 memcpy (container->type_params, params, sizeof (MonoGenericParam) * n);
5188 container->parent = parent_container;
5190 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5191 container->is_method = 1;
5193 g_assert (container->parent == NULL || container->is_method);
5195 context = &container->context;
5196 if (container->is_method) {
5197 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5198 context->method_inst = mono_get_shared_generic_inst (container);
5200 context->class_inst = mono_get_shared_generic_inst (container);
5207 mono_get_shared_generic_inst (MonoGenericContainer *container)
5209 MonoType **type_argv;
5211 MonoGenericInst *nginst;
5214 type_argv = g_new0 (MonoType *, container->type_argc);
5215 helper = g_new0 (MonoType, container->type_argc);
5217 for (i = 0; i < container->type_argc; i++) {
5218 MonoType *t = &helper [i];
5220 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5221 t->data.generic_param = &container->type_params [i];
5226 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5235 mono_type_is_byref (MonoType *type)
5241 mono_type_get_type (MonoType *type)
5246 /* For MONO_TYPE_FNPTR */
5247 MonoMethodSignature*
5248 mono_type_get_signature (MonoType *type)
5250 return type->data.method;
5253 /* For MONO_TYPE_CLASS, VALUETYPE */
5255 mono_type_get_class (MonoType *type)
5257 return type->data.klass;
5260 /* For MONO_TYPE_ARRAY */
5262 mono_type_get_array_type (MonoType *type)
5264 return type->data.array;
5267 /* For MONO_TYPE_PTR */
5269 mono_type_get_ptr_type (MonoType *type)
5271 return type->data.type;
5275 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
5277 /* FIXME: implement */
5282 mono_signature_get_return_type (MonoMethodSignature *sig)
5288 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
5294 /* start from the first */
5295 if (sig->param_count) {
5296 *iter = &sig->params [0];
5297 return sig->params [0];
5305 if (type < &sig->params [sig->param_count]) {
5313 mono_signature_get_param_count (MonoMethodSignature *sig)
5315 return sig->param_count;
5319 mono_signature_get_call_conv (MonoMethodSignature *sig)
5321 return sig->call_convention;
5325 mono_signature_vararg_start (MonoMethodSignature *sig)
5327 return sig->sentinelpos;
5331 mono_signature_is_instance (MonoMethodSignature *sig)
5333 return sig->hasthis;
5337 mono_signature_explicit_this (MonoMethodSignature *sig)
5339 return sig->explicit_this;
5342 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
5344 mono_aligned_addr_hash (gconstpointer ptr)
5346 return GPOINTER_TO_UINT (ptr) >> 3;
5350 * If @field belongs to an inflated generic class, return the corresponding field of the
5351 * generic type definition class.
5354 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
5359 if (!field->parent->generic_class)
5362 gtd = field->parent->generic_class->container_class;
5363 offset = field - field->parent->fields;
5364 return gtd->fields + offset;
5368 * If @event belongs to an inflated generic class, return the corresponding event of the
5369 * generic type definition class.
5372 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
5377 if (!event->parent->generic_class)
5380 gtd = event->parent->generic_class->container_class;
5381 offset = event - event->parent->events;
5382 return gtd->events + offset;
5386 * If @property belongs to an inflated generic class, return the corresponding property of the
5387 * generic type definition class.
5390 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
5395 if (!property->parent->generic_class)
5398 gtd = property->parent->generic_class->container_class;
5399 offset = property - property->parent->properties;
5400 return gtd->properties + offset;