2 * metadata.c: Routines for accessing the metadata
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
21 #include "tabledefs.h"
22 #include "mono-endian.h"
24 #include "tokentype.h"
25 #include "metadata-internals.h"
26 #include "class-internals.h"
27 #include "verify-internals.h"
30 #include "debug-helpers.h"
31 #include <mono/utils/mono-error-internals.h>
33 /* Auxiliary structure used for caching inflated signatures */
35 MonoMethodSignature *sig;
36 MonoGenericContext context;
37 } MonoInflatedMethodSignature;
39 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container, gboolean transient,
40 const char *ptr, const char **rptr);
42 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
43 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
44 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
45 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
46 gboolean signature_only);
47 static void free_generic_inst (MonoGenericInst *ginst);
48 static void free_generic_class (MonoGenericClass *ginst);
49 static void free_inflated_method (MonoMethodInflated *method);
50 static void free_inflated_signature (MonoInflatedMethodSignature *sig);
51 static void mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva, MonoMarshalSpec **marshal_spec, gboolean alloc_from_image);
54 * This enumeration is used to describe the data types in the metadata
65 /* Index into Blob heap */
68 /* Index into String heap */
74 /* Pointer into a table */
77 /* HasConstant:Parent pointer (Param, Field or Property) */
80 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
83 /* CustomAttributeType encoded index */
86 /* HasDeclSecurity index: TypeDef Method or Assembly */
89 /* Implementation coded index: File, Export AssemblyRef */
92 /* HasFieldMarshal coded index: Field or Param table */
95 /* MemberForwardedIndex: Field or Method */
98 /* TypeDefOrRef coded index: typedef, typeref, typespec */
101 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
104 /* MethodDefOrRef coded index: Method or Member Ref table */
107 /* HasSemantic coded index: Event or Property */
110 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
114 const static unsigned char TableSchemas [] = {
115 #define ASSEMBLY_SCHEMA_OFFSET 0
116 MONO_MT_UINT32, /* "HashId" }, */
117 MONO_MT_UINT16, /* "Major" }, */
118 MONO_MT_UINT16, /* "Minor" }, */
119 MONO_MT_UINT16, /* "BuildNumber" }, */
120 MONO_MT_UINT16, /* "RevisionNumber" }, */
121 MONO_MT_UINT32, /* "Flags" }, */
122 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
123 MONO_MT_STRING_IDX, /* "Name" }, */
124 MONO_MT_STRING_IDX, /* "Culture" }, */
127 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
128 MONO_MT_UINT32, /* "OSPlatformID" }, */
129 MONO_MT_UINT32, /* "OSMajor" }, */
130 MONO_MT_UINT32, /* "OSMinor" }, */
133 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
134 MONO_MT_UINT32, /* "Processor" }, */
137 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
138 MONO_MT_UINT16, /* "Major" }, */
139 MONO_MT_UINT16, /* "Minor" }, */
140 MONO_MT_UINT16, /* "Build" }, */
141 MONO_MT_UINT16, /* "Revision" }, */
142 MONO_MT_UINT32, /* "Flags" }, */
143 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
144 MONO_MT_STRING_IDX, /* "Name" }, */
145 MONO_MT_STRING_IDX, /* "Culture" }, */
146 MONO_MT_BLOB_IDX, /* "HashValue" }, */
149 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
150 MONO_MT_UINT32, /* "OSPlatformID" }, */
151 MONO_MT_UINT32, /* "OSMajorVersion" }, */
152 MONO_MT_UINT32, /* "OSMinorVersion" }, */
153 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
156 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
157 MONO_MT_UINT32, /* "Processor" }, */
158 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
161 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
162 MONO_MT_UINT16, /* "PackingSize" }, */
163 MONO_MT_UINT32, /* "ClassSize" }, */
164 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
167 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
168 MONO_MT_UINT8, /* "Type" }, */
169 MONO_MT_UINT8, /* "PaddingZero" }, */
170 MONO_MT_CONST_IDX, /* "Parent" }, */
171 MONO_MT_BLOB_IDX, /* "Value" }, */
174 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
175 MONO_MT_HASCAT_IDX, /* "Parent" }, */
176 MONO_MT_CAT_IDX, /* "Type" }, */
177 MONO_MT_BLOB_IDX, /* "Value" }, */
180 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
181 MONO_MT_UINT16, /* "Action" }, */
182 MONO_MT_HASDEC_IDX, /* "Parent" }, */
183 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
186 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
187 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
188 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
191 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
192 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
193 MONO_MT_STRING_IDX, /* "Name" }, */
194 MONO_MT_TDOR_IDX, /* "EventType" }, TypeDef or TypeRef or TypeSpec */
197 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
198 MONO_MT_TABLE_IDX, /* "Event" }, */
201 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
202 MONO_MT_UINT32, /* "Flags" }, */
203 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
204 MONO_MT_STRING_IDX, /* "TypeName" }, */
205 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
206 MONO_MT_IMPL_IDX, /* "Implementation" }, */
209 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
210 MONO_MT_UINT16, /* "Flags" }, */
211 MONO_MT_STRING_IDX, /* "Name" }, */
212 MONO_MT_BLOB_IDX, /* "Signature" }, */
215 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
216 MONO_MT_UINT32, /* "Offset" }, */
217 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
220 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
221 MONO_MT_HFM_IDX, /* "Parent" }, */
222 MONO_MT_BLOB_IDX, /* "NativeType" }, */
225 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
226 MONO_MT_UINT32, /* "RVA" }, */
227 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
230 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
231 MONO_MT_TABLE_IDX, /* "Field" }, */
234 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
235 MONO_MT_UINT32, /* "Flags" }, */
236 MONO_MT_STRING_IDX, /* "Name" }, */
237 MONO_MT_BLOB_IDX, /* "Value" }, */
240 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
241 MONO_MT_UINT16, /* "MappingFlag" }, */
242 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
243 MONO_MT_STRING_IDX, /* "ImportName" }, */
244 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
247 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
248 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
249 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
252 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
253 MONO_MT_UINT32, /* "Offset" }, */
254 MONO_MT_UINT32, /* "Flags" }, */
255 MONO_MT_STRING_IDX, /* "Name" }, */
256 MONO_MT_IMPL_IDX, /* "Implementation" }, */
259 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
260 MONO_MT_MRP_IDX, /* "Class" }, */
261 MONO_MT_STRING_IDX, /* "Name" }, */
262 MONO_MT_BLOB_IDX, /* "Signature" }, */
265 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
266 MONO_MT_UINT32, /* "RVA" }, */
267 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
268 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
269 MONO_MT_STRING_IDX, /* "Name" }, */
270 MONO_MT_BLOB_IDX, /* "Signature" }, */
271 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
274 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
275 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
276 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
277 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
280 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
281 MONO_MT_UINT16, /* "MethodSemantic" }, */
282 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
283 MONO_MT_HS_IDX, /* "Association" }, */
286 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
287 MONO_MT_TABLE_IDX, /* "Method" }, */
290 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
291 MONO_MT_UINT16, /* "Generation" }, */
292 MONO_MT_STRING_IDX, /* "Name" }, */
293 MONO_MT_GUID_IDX, /* "MVID" }, */
294 MONO_MT_GUID_IDX, /* "EncID" }, */
295 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
298 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
299 MONO_MT_STRING_IDX, /* "Name" }, */
302 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
303 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
304 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
307 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
308 MONO_MT_UINT16, /* "Flags" }, */
309 MONO_MT_UINT16, /* "Sequence" }, */
310 MONO_MT_STRING_IDX, /* "Name" }, */
313 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
314 MONO_MT_TABLE_IDX, /* "Param" }, */
317 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
318 MONO_MT_UINT16, /* "Flags" }, */
319 MONO_MT_STRING_IDX, /* "Name" }, */
320 MONO_MT_BLOB_IDX, /* "Type" }, */
323 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
324 MONO_MT_TABLE_IDX, /* "Property" }, */
327 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
328 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
329 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
332 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
333 MONO_MT_BLOB_IDX, /* "Signature" }, */
336 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
337 MONO_MT_UINT32, /* "Flags" }, */
338 MONO_MT_STRING_IDX, /* "Name" }, */
339 MONO_MT_STRING_IDX, /* "Namespace" }, */
340 MONO_MT_TDOR_IDX, /* "Extends" }, */
341 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
342 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
345 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
346 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
347 MONO_MT_STRING_IDX, /* "Name" }, */
348 MONO_MT_STRING_IDX, /* "Namespace" }, */
351 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
352 MONO_MT_BLOB_IDX, /* "Signature" }, */
355 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
356 MONO_MT_UINT16, /* "Number" }, */
357 MONO_MT_UINT16, /* "Flags" }, */
358 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
359 MONO_MT_STRING_IDX, /* "Name" }, */
362 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
363 MONO_MT_MDOR_IDX, /* "Method" }, */
364 MONO_MT_BLOB_IDX, /* "Signature" }, */
367 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
368 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
369 MONO_MT_TDOR_IDX, /* "Constraint" }, */
372 #define NULL_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
376 /* Must be the same order as MONO_TABLE_* */
377 const static unsigned char
378 table_description [] = {
379 MODULE_SCHEMA_OFFSET,
380 TYPEREF_SCHEMA_OFFSET,
381 TYPEDEF_SCHEMA_OFFSET,
382 FIELD_POINTER_SCHEMA_OFFSET,
384 METHOD_POINTER_SCHEMA_OFFSET,
385 METHOD_SCHEMA_OFFSET,
386 PARAM_POINTER_SCHEMA_OFFSET,
388 IFACEMAP_SCHEMA_OFFSET,
389 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
390 CONSTANT_SCHEMA_OFFSET,
391 CUSTOM_ATTR_SCHEMA_OFFSET,
392 FIELD_MARSHAL_SCHEMA_OFFSET,
393 DECL_SEC_SCHEMA_OFFSET,
394 CLASS_LAYOUT_SCHEMA_OFFSET,
395 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
396 STDALON_SIG_SCHEMA_OFFSET,
397 EVENTMAP_SCHEMA_OFFSET,
398 EVENT_POINTER_SCHEMA_OFFSET,
400 PROPERTY_MAP_SCHEMA_OFFSET,
401 PROPERTY_POINTER_SCHEMA_OFFSET,
402 PROPERTY_SCHEMA_OFFSET,
403 METHOD_SEMA_SCHEMA_OFFSET,
404 METHOD_IMPL_SCHEMA_OFFSET,
405 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
406 TYPESPEC_SCHEMA_OFFSET,
407 IMPLMAP_SCHEMA_OFFSET,
408 FIELD_RVA_SCHEMA_OFFSET,
411 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
412 ASSEMBLYPROC_SCHEMA_OFFSET,
413 ASSEMBLYOS_SCHEMA_OFFSET,
414 ASSEMBLYREF_SCHEMA_OFFSET,
415 ASSEMBLYREFPROC_SCHEMA_OFFSET,
416 ASSEMBLYREFOS_SCHEMA_OFFSET,
418 EXPORTED_TYPE_SCHEMA_OFFSET,
419 MANIFEST_SCHEMA_OFFSET,
420 NESTED_CLASS_SCHEMA_OFFSET,
421 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
422 METHOD_SPEC_SCHEMA_OFFSET,
423 GEN_CONSTRAINT_SCHEMA_OFFSET
426 #ifdef HAVE_ARRAY_ELEM_INIT
427 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
428 #define MSGSTRFIELD1(line) str##line
429 static const struct msgstr_t {
430 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
431 #include "mono/cil/tables.def"
434 #define TABLEDEF(a,b) b,
435 #include "mono/cil/tables.def"
438 static const gint16 tableidx [] = {
439 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
440 #include "mono/cil/tables.def"
445 #define TABLEDEF(a,b) b,
446 static const char* const
447 mono_tables_names [] = {
448 #include "mono/cil/tables.def"
455 * mono_meta_table_name:
456 * @table: table index
458 * Returns the name of the given ECMA metadata logical format table
459 * as described in ECMA 335, Partition II, Section 22.
461 * Returns: the name for the @table index
464 mono_meta_table_name (int table)
466 if ((table < 0) || (table > MONO_TABLE_LAST))
469 #ifdef HAVE_ARRAY_ELEM_INIT
470 return (const char*)&tablestr + tableidx [table];
472 return mono_tables_names [table];
476 /* The guy who wrote the spec for this should not be allowed near a
479 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
480 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
481 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
482 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
483 inverse of this mapping.
486 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
487 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
489 /* Reference: Partition II - 23.2.6 */
491 * mono_metadata_compute_size:
492 * @meta: metadata context
493 * @tableindex: metadata table number
494 * @result_bitfield: pointer to guint32 where to store additional info
496 * mono_metadata_compute_size() computes the lenght in bytes of a single
497 * row in a metadata table. The size of each column is encoded in the
498 * @result_bitfield return value along with the number of columns in the table.
499 * the resulting bitfield should be handed to the mono_metadata_table_size()
500 * and mono_metadata_table_count() macros.
501 * This is a Mono runtime internal only function.
504 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
506 guint32 bitfield = 0;
507 int size = 0, field_size = 0;
510 const unsigned char *description = TableSchemas + table_description [tableindex];
512 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
515 field_size = 4; break;
518 field_size = 2; break;
521 field_size = 1; break;
523 case MONO_MT_BLOB_IDX:
524 field_size = meta->idx_blob_wide ? 4 : 2; break;
526 case MONO_MT_STRING_IDX:
527 field_size = meta->idx_string_wide ? 4 : 2; break;
529 case MONO_MT_GUID_IDX:
530 field_size = meta->idx_guid_wide ? 4 : 2; break;
532 case MONO_MT_TABLE_IDX:
533 /* Uhm, a table index can point to other tables besides the current one
534 * so, it's not correct to use the rowcount of the current table to
535 * get the size for this column - lupus
537 switch (tableindex) {
538 case MONO_TABLE_ASSEMBLYREFOS:
540 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
541 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
543 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
544 case MONO_TABLE_CLASSLAYOUT:
546 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
547 case MONO_TABLE_EVENTMAP:
548 g_assert (i == 0 || i == 1);
549 field_size = i ? idx_size (MONO_TABLE_EVENT):
550 idx_size(MONO_TABLE_TYPEDEF);
552 case MONO_TABLE_EVENT_POINTER:
554 field_size = idx_size (MONO_TABLE_EVENT); break;
555 case MONO_TABLE_EXPORTEDTYPE:
557 /* the index is in another metadata file, so it must be 4 */
558 field_size = 4; break;
559 case MONO_TABLE_FIELDLAYOUT:
561 field_size = idx_size (MONO_TABLE_FIELD); break;
562 case MONO_TABLE_FIELDRVA:
564 field_size = idx_size (MONO_TABLE_FIELD); break;
565 case MONO_TABLE_FIELD_POINTER:
567 field_size = idx_size (MONO_TABLE_FIELD); break;
568 case MONO_TABLE_IMPLMAP:
570 field_size = idx_size (MONO_TABLE_MODULEREF); break;
571 case MONO_TABLE_INTERFACEIMPL:
573 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
574 case MONO_TABLE_METHOD:
576 field_size = idx_size (MONO_TABLE_PARAM); break;
577 case MONO_TABLE_METHODIMPL:
579 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
580 case MONO_TABLE_METHODSEMANTICS:
582 field_size = idx_size (MONO_TABLE_METHOD); break;
583 case MONO_TABLE_METHOD_POINTER:
585 field_size = idx_size (MONO_TABLE_METHOD); break;
586 case MONO_TABLE_NESTEDCLASS:
587 g_assert (i == 0 || i == 1);
588 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
589 case MONO_TABLE_PARAM_POINTER:
591 field_size = idx_size (MONO_TABLE_PARAM); break;
592 case MONO_TABLE_PROPERTYMAP:
593 g_assert (i == 0 || i == 1);
594 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
595 idx_size(MONO_TABLE_TYPEDEF);
597 case MONO_TABLE_PROPERTY_POINTER:
599 field_size = idx_size (MONO_TABLE_PROPERTY); break;
600 case MONO_TABLE_TYPEDEF:
601 g_assert (i == 4 || i == 5);
602 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
603 idx_size(MONO_TABLE_METHOD);
605 case MONO_TABLE_GENERICPARAM:
607 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
608 /*This is a coded token for 2 tables, so takes 1 bit */
609 field_size = rtsize (n, 16 - MONO_TYPEORMETHOD_BITS);
611 case MONO_TABLE_GENERICPARAMCONSTRAINT:
613 field_size = idx_size (MONO_TABLE_GENERICPARAM);
617 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
622 * HasConstant: ParamDef, FieldDef, Property
624 case MONO_MT_CONST_IDX:
625 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
626 meta->tables [MONO_TABLE_FIELD].rows);
627 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
629 /* 2 bits to encode tag */
630 field_size = rtsize (n, 16-2);
634 * HasCustomAttribute: points to any table but
637 case MONO_MT_HASCAT_IDX:
639 * We believe that since the signature and
640 * permission are indexing the Blob heap,
641 * we should consider the blob size first
643 /* I'm not a believer - lupus
644 if (meta->idx_blob_wide){
649 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
650 meta->tables [MONO_TABLE_FIELD].rows);
651 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
652 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
653 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
654 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
655 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
656 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
657 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
658 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
659 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
660 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
661 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
662 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
663 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
664 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
665 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
666 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
667 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
669 /* 5 bits to encode */
670 field_size = rtsize (n, 16-5);
674 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
675 * MemberRef and String.
677 case MONO_MT_CAT_IDX:
678 /* String is a heap, if it is wide, we know the size */
680 if (meta->idx_string_wide){
685 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
686 meta->tables [MONO_TABLE_TYPEDEF].rows);
687 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
688 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
690 /* 3 bits to encode */
691 field_size = rtsize (n, 16-3);
695 * HasDeclSecurity: Typedef, MethodDef, Assembly
697 case MONO_MT_HASDEC_IDX:
698 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
699 meta->tables [MONO_TABLE_METHOD].rows);
700 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
702 /* 2 bits to encode */
703 field_size = rtsize (n, 16-2);
707 * Implementation: File, AssemblyRef, ExportedType
709 case MONO_MT_IMPL_IDX:
710 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
711 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
712 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
714 /* 2 bits to encode tag */
715 field_size = rtsize (n, 16-2);
719 * HasFieldMarshall: FieldDef, ParamDef
721 case MONO_MT_HFM_IDX:
722 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
723 meta->tables [MONO_TABLE_PARAM].rows);
725 /* 1 bit used to encode tag */
726 field_size = rtsize (n, 16-1);
730 * MemberForwarded: FieldDef, MethodDef
733 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
734 meta->tables [MONO_TABLE_METHOD].rows);
736 /* 1 bit used to encode tag */
737 field_size = rtsize (n, 16-1);
741 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
743 * It is TypeDef, _TypeRef_, TypeSpec, instead.
745 case MONO_MT_TDOR_IDX:
746 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
747 meta->tables [MONO_TABLE_TYPEREF].rows);
748 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
750 /* 2 bits to encode */
751 field_size = rtsize (n, 16-2);
755 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
757 case MONO_MT_MRP_IDX:
758 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
759 meta->tables [MONO_TABLE_TYPEREF].rows);
760 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
761 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
762 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
763 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
765 /* 3 bits to encode */
766 field_size = rtsize (n, 16 - 3);
770 * MethodDefOrRef: MethodDef, MemberRef
772 case MONO_MT_MDOR_IDX:
773 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
774 meta->tables [MONO_TABLE_MEMBERREF].rows);
776 /* 1 bit used to encode tag */
777 field_size = rtsize (n, 16-1);
781 * HasSemantics: Property, Event
784 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
785 meta->tables [MONO_TABLE_EVENT].rows);
787 /* 1 bit used to encode tag */
788 field_size = rtsize (n, 16-1);
792 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
795 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
796 meta->tables [MONO_TABLE_MODULEREF].rows);
797 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
798 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
800 /* 2 bits used to encode tag (ECMA spec claims 3) */
801 field_size = rtsize (n, 16 - 2);
806 * encode field size as follows (we just need to
813 bitfield |= (field_size-1) << shift;
816 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
819 *result_bitfield = (i << 24) | bitfield;
824 * mono_metadata_compute_table_bases:
825 * @meta: metadata context to compute table values
827 * Computes the table bases for the metadata structure.
828 * This is an internal function used by the image loader code.
831 mono_metadata_compute_table_bases (MonoImage *meta)
834 const char *base = meta->tables_base;
836 for (i = 0; i < MONO_TABLE_NUM; i++) {
837 MonoTableInfo *table = &meta->tables [i];
838 if (table->rows == 0)
841 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
843 base += table->rows * table->row_size;
848 * mono_metadata_locate:
849 * @meta: metadata context
850 * @table: table code.
851 * @idx: index of element to retrieve from @table.
853 * Returns: a pointer to the @idx element in the metadata table
854 * whose code is @table.
857 mono_metadata_locate (MonoImage *meta, int table, int idx)
859 /* idx == 0 refers always to NULL */
860 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
862 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
866 * mono_metadata_locate_token:
867 * @meta: metadata context
868 * @token: metadata token
870 * Returns: a pointer to the data in the metadata represented by the
874 mono_metadata_locate_token (MonoImage *meta, guint32 token)
876 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
880 * mono_metadata_string_heap:
881 * @meta: metadata context
882 * @index: index into the string heap.
884 * Returns: an in-memory pointer to the @index in the string heap.
887 mono_metadata_string_heap (MonoImage *meta, guint32 index)
889 g_return_val_if_fail (index < meta->heap_strings.size, "");
890 return meta->heap_strings.data + index;
894 * mono_metadata_user_string:
895 * @meta: metadata context
896 * @index: index into the user string heap.
898 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
901 mono_metadata_user_string (MonoImage *meta, guint32 index)
903 g_return_val_if_fail (index < meta->heap_us.size, "");
904 return meta->heap_us.data + index;
908 * mono_metadata_blob_heap:
909 * @meta: metadata context
910 * @index: index into the blob.
912 * Returns: an in-memory pointer to the @index in the Blob heap.
915 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
917 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
918 return meta->heap_blob.data + index;
922 * mono_metadata_guid_heap:
923 * @meta: metadata context
924 * @index: index into the guid heap.
926 * Returns: an in-memory pointer to the @index in the guid heap.
929 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
932 index *= 16; /* adjust for guid size and 1-based index */
933 g_return_val_if_fail (index < meta->heap_guid.size, "");
934 return meta->heap_guid.data + index;
937 static const unsigned char *
938 dword_align (const unsigned char *ptr)
940 #if SIZEOF_VOID_P == 8
941 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
943 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
948 * mono_metadata_decode_row:
949 * @t: table to extract information from.
950 * @idx: index in table.
951 * @res: array of @res_size cols to store the results in
953 * This decompresses the metadata element @idx in table @t
954 * into the guint32 @res array that has res_size elements
957 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
959 guint32 bitfield = t->size_bitfield;
960 int i, count = mono_metadata_table_count (bitfield);
963 g_assert (idx < t->rows);
965 data = t->base + idx * t->row_size;
967 g_assert (res_size == count);
969 for (i = 0; i < count; i++) {
970 int n = mono_metadata_table_size (bitfield, i);
974 res [i] = *data; break;
976 res [i] = read16 (data); break;
978 res [i] = read32 (data); break;
980 g_assert_not_reached ();
987 * mono_metadata_decode_row_col:
988 * @t: table to extract information from.
989 * @idx: index for row in table.
990 * @col: column in the row.
992 * This function returns the value of column @col from the @idx
993 * row in the table @t.
996 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
998 guint32 bitfield = t->size_bitfield;
1000 register const char *data;
1003 g_assert (idx < t->rows);
1004 g_assert (col < mono_metadata_table_count (bitfield));
1005 data = t->base + idx * t->row_size;
1007 n = mono_metadata_table_size (bitfield, 0);
1008 for (i = 0; i < col; ++i) {
1010 n = mono_metadata_table_size (bitfield, i + 1);
1016 return read16 (data);
1018 return read32 (data);
1020 g_assert_not_reached ();
1026 * mono_metadata_decode_blob_size:
1027 * @ptr: pointer to a blob object
1028 * @rptr: the new position of the pointer
1030 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1032 * Returns: the size of the blob object
1035 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1037 const unsigned char *ptr = (const unsigned char *)xptr;
1040 if ((*ptr & 0x80) == 0){
1041 size = ptr [0] & 0x7f;
1043 } else if ((*ptr & 0x40) == 0){
1044 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1047 size = ((ptr [0] & 0x1f) << 24) +
1059 * mono_metadata_decode_value:
1060 * @ptr: pointer to decode from
1061 * @rptr: the new position of the pointer
1063 * This routine decompresses 32-bit values as specified in the "Blob and
1064 * Signature" section (22.2)
1066 * Returns: the decoded value
1069 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1071 const unsigned char *ptr = (const unsigned char *) _ptr;
1072 unsigned char b = *ptr;
1075 if ((b & 0x80) == 0){
1078 } else if ((b & 0x40) == 0){
1079 len = ((b & 0x3f) << 8 | ptr [1]);
1082 len = ((b & 0x1f) << 24) |
1095 * mono_metadata_decode_signed_value:
1096 * @ptr: pointer to decode from
1097 * @rptr: the new position of the pointer
1099 * This routine decompresses 32-bit signed values
1100 * (not specified in the spec)
1102 * Returns: the decoded value
1105 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1107 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1108 gint32 ival = uval >> 1;
1111 /* ival is a truncated 2's complement negative number. */
1113 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1116 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1117 return ival - 0x2000;
1118 if (ival < 0x10000000)
1119 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1120 return ival - 0x10000000;
1121 g_assert (ival < 0x20000000);
1122 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1123 return ival - 0x20000000;
1127 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1128 * using the *Ptr tables in uncompressed metadata, if they are available.
1130 * FIXME: The caller is not forced to call this function, which is error-prone, since
1131 * forgetting to call it would only show up as a bug on uncompressed metadata.
1134 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1136 if (!image->uncompressed_metadata)
1140 case MONO_TABLE_METHOD:
1141 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1142 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1145 case MONO_TABLE_FIELD:
1146 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1147 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1150 case MONO_TABLE_EVENT:
1151 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1152 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1155 case MONO_TABLE_PROPERTY:
1156 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1157 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1160 case MONO_TABLE_PARAM:
1161 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1162 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1171 * mono_metadata_decode_table_row:
1173 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1174 * uncompressed metadata into account, so it should be used to access the
1175 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1176 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1179 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1181 if (image->uncompressed_metadata)
1182 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1184 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1188 * mono_metadata_decode_table_row_col:
1190 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1191 * uncompressed metadata into account, so it should be used to access the
1192 * Method, Field, Param and Event tables.
1194 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1196 if (image->uncompressed_metadata)
1197 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1199 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1203 * mono_metadata_parse_typedef_or_ref:
1204 * @m: a metadata context.
1205 * @ptr: a pointer to an encoded TypedefOrRef in @m
1206 * @rptr: pointer updated to match the end of the decoded stream
1208 * Returns: a token valid in the @m metadata decoded from
1209 * the compressed representation.
1212 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1215 token = mono_metadata_decode_value (ptr, &ptr);
1218 return mono_metadata_token_from_dor (token);
1222 * mono_metadata_parse_custom_mod:
1223 * @m: a metadata context.
1224 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1225 * @ptr: a pointer to (possibly) the start of a custom modifier list
1226 * @rptr: pointer updated to match the end of the decoded stream
1228 * Checks if @ptr points to a type custom modifier compressed representation.
1230 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1233 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1235 MonoCustomMod local;
1236 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1239 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1240 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1247 * mono_metadata_parse_array_internal:
1248 * @m: a metadata context.
1249 * @transient: whenever to allocate data from the heap
1250 * @ptr: a pointer to an encoded array description.
1251 * @rptr: pointer updated to match the end of the decoded stream
1253 * Decodes the compressed array description found in the metadata @m at @ptr.
1255 * Returns: a #MonoArrayType structure describing the array type
1256 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1257 * on the value of @transient.
1259 * LOCKING: Acquires the loader lock
1261 static MonoArrayType *
1262 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1263 gboolean transient, const char *ptr, const char **rptr)
1266 MonoArrayType *array;
1269 array = transient ? g_malloc0 (sizeof (MonoArrayType)) : mono_image_alloc0 (m, sizeof (MonoArrayType));
1270 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1273 array->eklass = mono_class_from_mono_type (etype);
1274 array->rank = mono_metadata_decode_value (ptr, &ptr);
1276 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1277 if (array->numsizes)
1278 array->sizes = transient ? g_malloc0 (sizeof (int) * array->numsizes) : mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1279 for (i = 0; i < array->numsizes; ++i)
1280 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1282 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1283 if (array->numlobounds)
1284 array->lobounds = transient ? g_malloc0 (sizeof (int) * array->numlobounds) : mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1285 for (i = 0; i < array->numlobounds; ++i)
1286 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1294 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1295 const char *ptr, const char **rptr)
1297 return mono_metadata_parse_array_internal (m, container, FALSE, ptr, rptr);
1301 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1303 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1307 * mono_metadata_free_array:
1308 * @array: array description
1310 * Frees the array description returned from mono_metadata_parse_array().
1313 mono_metadata_free_array (MonoArrayType *array)
1315 g_free (array->sizes);
1316 g_free (array->lobounds);
1321 * need to add common field and param attributes combinations:
1324 * public static literal
1327 * private static literal
1329 static const MonoType
1331 /* data, attrs, type, nmods, byref, pinned */
1332 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1333 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1334 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1335 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1336 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1337 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1338 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1339 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1340 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1341 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1342 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1343 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1344 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1345 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1346 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1347 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1348 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1349 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1350 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1351 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1352 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1353 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1354 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1355 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1356 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1357 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1358 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1359 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1360 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1361 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1362 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1363 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1364 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1365 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1368 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1370 static GHashTable *type_cache = NULL;
1371 static int next_generic_inst_id = 0;
1373 static MonoImageSet *mscorlib_image_set;
1374 static GPtrArray *image_sets;
1376 static guint mono_generic_class_hash (gconstpointer data);
1379 * MonoTypes with modifies are never cached, so we never check or use that field.
1382 mono_type_hash (gconstpointer data)
1384 const MonoType *type = (const MonoType *) data;
1385 if (type->type == MONO_TYPE_GENERICINST)
1386 return mono_generic_class_hash (type->data.generic_class);
1388 return type->type | (type->byref << 8) | (type->attrs << 9);
1392 mono_type_equal (gconstpointer ka, gconstpointer kb)
1394 const MonoType *a = (const MonoType *) ka;
1395 const MonoType *b = (const MonoType *) kb;
1397 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1399 /* need other checks */
1404 mono_metadata_generic_inst_hash (gconstpointer data)
1406 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1410 for (i = 0; i < ginst->type_argc; ++i) {
1412 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1415 return hash ^ (ginst->is_open << 8);
1419 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1423 #ifndef MONO_SMALL_CONFIG
1424 if (a->id && b->id) {
1427 if (!signature_only)
1432 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1434 for (i = 0; i < a->type_argc; ++i) {
1435 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1442 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1444 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1445 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1447 return mono_generic_inst_equal_full (a, b, FALSE);
1451 mono_generic_class_hash (gconstpointer data)
1453 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1454 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1457 hash += gclass->is_tb_open;
1458 hash += mono_metadata_generic_context_hash (&gclass->context);
1464 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1466 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1467 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1469 return _mono_metadata_generic_class_equal (a, b, FALSE);
1473 * mono_metadata_init:
1475 * Initialize the global variables of this module.
1476 * This is a Mono runtime internal function.
1479 mono_metadata_init (void)
1483 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1485 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1486 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1490 * mono_metadata_cleanup:
1492 * Free all resources used by this module.
1493 * This is a Mono runtime internal function.
1496 mono_metadata_cleanup (void)
1498 g_hash_table_destroy (type_cache);
1500 g_ptr_array_free (image_sets, TRUE);
1505 * mono_metadata_parse_type:
1506 * @m: metadata context
1507 * @mode: king of type that may be found at @ptr
1508 * @opt_attrs: optional attributes to store in the returned type
1509 * @ptr: pointer to the type representation
1510 * @rptr: pointer updated to match the end of the decoded stream
1511 * @transient: whenever to allocate the result from the heap or from a mempool
1513 * Decode a compressed type description found at @ptr in @m.
1514 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1515 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1516 * This function can be used to decode type descriptions in method signatures,
1517 * field signatures, locals signatures etc.
1519 * To parse a generic type, `generic_container' points to the current class'es
1520 * (the `generic_container' field in the MonoClass) or the current generic method's
1521 * (stored in image->property_hash) generic container.
1522 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1523 * this MonoGenericContainer.
1525 * LOCKING: Acquires the loader lock.
1527 * Returns: a #MonoType structure representing the decoded type.
1530 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1531 short opt_attrs, gboolean transient, const char *ptr, const char **rptr)
1533 MonoType *type, *cached;
1535 gboolean byref = FALSE;
1536 gboolean pinned = FALSE;
1537 const char *tmp_ptr;
1542 * According to the spec, custom modifiers should come before the byref
1543 * flag, but the IL produced by ilasm from the following signature:
1544 * object modopt(...) &
1545 * starts with a byref flag, followed by the modifiers. (bug #49802)
1546 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1547 * it would be better to treat byref as real type constructor instead of
1549 * Also, pinned should come before anything else, but some MSV++ produced
1550 * assemblies violate this (#bug 61990).
1553 /* Count the modifiers first */
1558 case MONO_TYPE_PINNED:
1559 case MONO_TYPE_BYREF:
1562 case MONO_TYPE_CMOD_REQD:
1563 case MONO_TYPE_CMOD_OPT:
1565 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1575 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1576 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1577 type->num_mods = count;
1579 g_warning ("got more than 64 modifiers in type");
1582 memset (type, 0, MONO_SIZEOF_TYPE);
1585 /* Parse pinned, byref and custom modifiers */
1590 case MONO_TYPE_PINNED:
1594 case MONO_TYPE_BYREF:
1598 case MONO_TYPE_CMOD_REQD:
1599 case MONO_TYPE_CMOD_OPT:
1600 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1608 type->attrs = opt_attrs;
1609 type->byref = byref;
1610 type->pinned = pinned ? 1 : 0;
1612 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr)) {
1619 if (!type->num_mods && !transient) {
1620 /* no need to free type here, because it is on the stack */
1621 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1622 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1624 /* Consider the case:
1626 class Foo<T> { class Bar {} }
1627 class Test : Foo<Test>.Bar {}
1629 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1630 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1632 We ensure that the MonoClass is in a state that we can canonicalize to:
1634 klass->byval_arg.data.klass == klass
1635 klass->this_arg.data.klass == klass
1637 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1639 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1640 of a MonoClass which currently holds the loader lock. 'type' is local.
1642 if (ret->data.klass == type->data.klass) {
1646 /* No need to use locking since nobody is modifying the hash table */
1647 if ((cached = g_hash_table_lookup (type_cache, type))) {
1652 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1654 if (type == &stype) {
1655 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1656 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1662 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1663 short opt_attrs, const char *ptr, const char **rptr)
1665 return mono_metadata_parse_type_internal (m, container, mode, opt_attrs, FALSE, ptr, rptr);
1669 * LOCKING: Acquires the loader lock.
1672 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1673 const char *ptr, const char **rptr)
1675 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1679 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1681 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1682 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1683 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1685 if (def < methodt->rows)
1686 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1688 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1690 for (i = param_index; i < lastp; ++i) {
1691 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1700 * mono_metadata_get_param_attrs:
1702 * @m The image to loader parameter attributes from
1703 * @def method def token (one based)
1704 * @param_count number of params to decode including the return value
1706 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1707 * returned memory needs to be freed by the caller. If all the param attributes are
1708 * 0, then NULL is returned.
1711 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1713 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1714 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1715 guint32 cols [MONO_PARAM_SIZE];
1716 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1719 if (def < methodt->rows)
1720 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1722 lastp = paramt->rows + 1;
1724 for (i = param_index; i < lastp; ++i) {
1725 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1726 if (cols [MONO_PARAM_FLAGS]) {
1728 pattrs = g_new0 (int, param_count);
1729 /* at runtime we just ignore this kind of malformed file:
1730 * the verifier can signal the error to the user
1732 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1734 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1742 * mono_metadata_parse_signature_full:
1743 * @image: metadata context
1744 * @generic_container: generic container
1745 * @toke: metadata token
1747 * Decode a method signature stored in the STANDALONESIG table
1749 * LOCKING: Assumes the loader lock is held.
1751 * Returns: a MonoMethodSignature describing the signature.
1753 MonoMethodSignature*
1754 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1756 MonoTableInfo *tables = image->tables;
1757 guint32 idx = mono_metadata_token_index (token);
1762 return mono_lookup_dynamic_token (image, token, NULL);
1764 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1766 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1768 ptr = mono_metadata_blob_heap (image, sig);
1769 mono_metadata_decode_blob_size (ptr, &ptr);
1771 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1775 * mono_metadata_parse_signature:
1776 * @image: metadata context
1777 * @toke: metadata token
1779 * Decode a method signature stored in the STANDALONESIG table
1781 * Returns: a MonoMethodSignature describing the signature.
1783 MonoMethodSignature*
1784 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1786 return mono_metadata_parse_signature_full (image, NULL, token);
1790 * mono_metadata_signature_alloc:
1791 * @image: metadata context
1792 * @nparmas: number of parameters in the signature
1794 * Allocate a MonoMethodSignature structure with the specified number of params.
1795 * The return type and the params types need to be filled later.
1796 * This is a Mono runtime internal function.
1798 * LOCKING: Assumes the loader lock is held.
1800 * Returns: the new MonoMethodSignature structure.
1802 MonoMethodSignature*
1803 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1805 MonoMethodSignature *sig;
1807 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1808 sig->param_count = nparams;
1809 sig->sentinelpos = -1;
1814 static MonoMethodSignature*
1815 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1818 MonoMethodSignature *ret;
1819 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1822 ret = mono_image_alloc (image, sigsize);
1824 ret = mono_mempool_alloc (mp, sigsize);
1826 ret = g_malloc (sigsize);
1828 memcpy (ret, sig, sigsize);
1832 MonoMethodSignature*
1833 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1835 return mono_metadata_signature_dup_internal (image, NULL, sig);
1838 /*The mempool is accessed without synchronization*/
1839 MonoMethodSignature*
1840 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1842 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1846 * mono_metadata_signature_dup:
1847 * @sig: method signature
1849 * Duplicate an existing MonoMethodSignature so it can be modified.
1850 * This is a Mono runtime internal function.
1852 * Returns: the new MonoMethodSignature structure.
1854 MonoMethodSignature*
1855 mono_metadata_signature_dup (MonoMethodSignature *sig)
1857 return mono_metadata_signature_dup_full (NULL, sig);
1861 * mono_metadata_signature_size:
1863 * Return the amount of memory allocated to SIG.
1866 mono_metadata_signature_size (MonoMethodSignature *sig)
1868 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1872 * mono_metadata_parse_method_signature:
1873 * @m: metadata context
1874 * @generic_container: generics container
1875 * @def: the MethodDef index or 0 for Ref signatures.
1876 * @ptr: pointer to the signature metadata representation
1877 * @rptr: pointer updated to match the end of the decoded stream
1879 * Decode a method signature stored at @ptr.
1880 * This is a Mono runtime internal function.
1882 * LOCKING: Assumes the loader lock is held.
1884 * Returns: a MonoMethodSignature describing the signature.
1886 MonoMethodSignature *
1887 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1888 int def, const char *ptr, const char **rptr)
1890 MonoMethodSignature *method;
1891 int i, *pattrs = NULL;
1892 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1893 guint32 gen_param_count = 0;
1894 gboolean is_open = FALSE;
1897 gen_param_count = 1;
1902 call_convention = *ptr & 0x0F;
1904 if (gen_param_count)
1905 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1906 param_count = mono_metadata_decode_value (ptr, &ptr);
1909 pattrs = mono_metadata_get_param_attrs (m, def, param_count + 1); /*Must be + 1 since signature's param count doesn't account for the return value */
1911 method = mono_metadata_signature_alloc (m, param_count);
1912 method->hasthis = hasthis;
1913 method->explicit_this = explicit_this;
1914 method->call_convention = call_convention;
1915 method->generic_param_count = gen_param_count;
1917 if (call_convention != 0xa) {
1918 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1920 mono_metadata_free_method_signature (method);
1924 is_open = mono_class_is_open_constructed_type (method->ret);
1927 for (i = 0; i < method->param_count; ++i) {
1928 if (*ptr == MONO_TYPE_SENTINEL) {
1929 if (method->call_convention != MONO_CALL_VARARG || def) {
1930 g_warning ("found sentinel for methoddef or no vararg method 0x%08x on image %s", def, m->name);
1934 if (method->sentinelpos >= 0) {
1935 g_warning ("found sentinel twice in the same signature for method 0x%08x on image %s", def, m->name);
1939 method->sentinelpos = i;
1942 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1943 if (!method->params [i]) {
1944 mono_metadata_free_method_signature (method);
1949 is_open = mono_class_is_open_constructed_type (method->params [i]);
1952 /* The sentinel could be missing if the caller does not pass any additional arguments */
1953 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1954 method->sentinelpos = method->param_count;
1956 method->has_type_parameters = is_open;
1958 if (def && (method->call_convention == MONO_CALL_VARARG))
1959 method->sentinelpos = method->param_count;
1966 * Add signature to a cache and increase ref count...
1973 * mono_metadata_parse_method_signature:
1974 * @m: metadata context
1975 * @def: the MethodDef index or 0 for Ref signatures.
1976 * @ptr: pointer to the signature metadata representation
1977 * @rptr: pointer updated to match the end of the decoded stream
1979 * Decode a method signature stored at @ptr.
1980 * This is a Mono runtime internal function.
1982 * LOCKING: Assumes the loader lock is held.
1984 * Returns: a MonoMethodSignature describing the signature.
1986 MonoMethodSignature *
1987 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1989 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1993 * mono_metadata_free_method_signature:
1994 * @sig: signature to destroy
1996 * Free the memory allocated in the signature @sig.
1997 * This method needs to be robust and work also on partially-built
1998 * signatures, so it does extra checks.
2001 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2003 /* Everything is allocated from mempools */
2007 mono_metadata_free_type (sig->ret);
2008 for (i = 0; i < sig->param_count; ++i) {
2009 if (sig->params [i])
2010 mono_metadata_free_type (sig->params [i]);
2016 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2020 /* Allocated in inflate_generic_signature () */
2022 mono_metadata_free_type (sig->ret);
2023 for (i = 0; i < sig->param_count; ++i) {
2024 if (sig->params [i])
2025 mono_metadata_free_type (sig->params [i]);
2031 inflated_method_equal (gconstpointer a, gconstpointer b)
2033 const MonoMethodInflated *ma = a;
2034 const MonoMethodInflated *mb = b;
2035 if (ma->declaring != mb->declaring)
2037 if (ma->method.method.is_mb_open != mb->method.method.is_mb_open)
2039 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2043 inflated_method_hash (gconstpointer a)
2045 const MonoMethodInflated *ma = a;
2046 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->method.method.is_mb_open;
2050 inflated_signature_equal (gconstpointer a, gconstpointer b)
2052 const MonoInflatedMethodSignature *sig1 = a;
2053 const MonoInflatedMethodSignature *sig2 = b;
2055 /* sig->sig is assumed to be canonized */
2056 if (sig1->sig != sig2->sig)
2058 /* The generic instances are canonized */
2059 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2063 inflated_signature_hash (gconstpointer a)
2065 const MonoInflatedMethodSignature *sig = a;
2067 /* sig->sig is assumed to be canonized */
2068 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2072 dump_ginst (MonoGenericInst *ginst)
2077 g_print ("Ginst: <");
2078 for (i = 0; i < ginst->type_argc; ++i) {
2081 name = mono_type_get_name (ginst->type_argv [i]);
2082 g_print ("%s", name);
2088 static gboolean type_in_image (MonoType *type, MonoImage *image);
2091 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2093 gpointer iter = NULL;
2096 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2097 if (type_in_image (p, image))
2100 return type_in_image (mono_signature_get_return_type (sig), image);
2104 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2108 for (i = 0; i < ginst->type_argc; ++i) {
2109 if (type_in_image (ginst->type_argv [i], image))
2117 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2119 return gclass->container_class->image == image ||
2120 ginst_in_image (gclass->context.class_inst, image);
2124 type_in_image (MonoType *type, MonoImage *image)
2127 switch (type->type) {
2128 case MONO_TYPE_GENERICINST:
2129 return gclass_in_image (type->data.generic_class, image);
2131 type = type->data.type;
2133 case MONO_TYPE_SZARRAY:
2134 type = &type->data.klass->byval_arg;
2136 case MONO_TYPE_ARRAY:
2137 type = &type->data.array->eklass->byval_arg;
2139 case MONO_TYPE_FNPTR:
2140 return signature_in_image (type->data.method, image);
2141 case MONO_TYPE_VAR: {
2142 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2144 g_assert (!container->is_method);
2146 * FIXME: The following check is here solely
2147 * for monodis, which uses the internal
2149 * mono_metadata_load_generic_params(). The
2150 * caller of that function needs to fill in
2151 * owner->klass or owner->method of the
2152 * returned struct, but monodis doesn't do
2153 * that. The image unloading depends on that,
2154 * however, so a crash results without this
2157 if (!container->owner.klass)
2158 return container->image == image;
2159 return container->owner.klass->image == image;
2161 return type->data.generic_param->image == image;
2164 case MONO_TYPE_MVAR: {
2165 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2166 if (type->data.generic_param->image == image)
2169 g_assert (container->is_method);
2170 if (!container->owner.method)
2171 /* RefEmit created generic param whose method is not finished */
2172 return container->image == image;
2173 return container->owner.method->klass->image == image;
2175 return type->data.generic_param->image == image;
2179 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2180 return image == mono_class_from_mono_type (type)->image;
2187 * Return a MonoImageSet representing the set of images in IMAGES.
2189 * LOCKING: Assumes the loader lock is held.
2191 static MonoImageSet*
2192 get_image_set (MonoImage **images, int nimages)
2199 image_sets = g_ptr_array_new ();
2202 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2203 return mscorlib_image_set;
2205 /* Happens with empty generic instances */
2207 return mscorlib_image_set;
2209 if (images [0] == mono_defaults.corlib && nimages > 1)
2210 l = images [1]->image_sets;
2212 l = images [0]->image_sets;
2215 for (; l; l = l->next) {
2218 if (set->nimages == nimages) {
2219 for (j = 0; j < nimages; ++j) {
2220 for (k = 0; k < nimages; ++k)
2221 if (set->images [k] == images [j])
2235 set = g_new0 (MonoImageSet, 1);
2236 set->nimages = nimages;
2237 set->images = g_new0 (MonoImage*, nimages);
2238 InitializeCriticalSection (&set->lock);
2239 for (i = 0; i < nimages; ++i)
2240 set->images [i] = images [i];
2241 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2242 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2243 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2244 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2246 for (i = 0; i < nimages; ++i)
2247 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2249 g_ptr_array_add (image_sets, set);
2252 if (nimages == 1 && images [0] == mono_defaults.corlib)
2253 mscorlib_image_set = set;
2259 delete_image_set (MonoImageSet *set)
2263 g_hash_table_destroy (set->gclass_cache);
2264 g_hash_table_destroy (set->ginst_cache);
2265 g_hash_table_destroy (set->gmethod_cache);
2266 g_hash_table_destroy (set->gsignature_cache);
2268 for (i = 0; i < set->nimages; ++i)
2269 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2271 g_ptr_array_remove (image_sets, set);
2274 mono_mempool_destroy (set->mempool);
2275 g_free (set->images);
2276 DeleteCriticalSection (&set->lock);
2281 mono_image_set_lock (MonoImageSet *set)
2283 EnterCriticalSection (&set->lock);
2287 mono_image_set_unlock (MonoImageSet *set)
2289 LeaveCriticalSection (&set->lock);
2293 mono_image_set_alloc (MonoImageSet *set, guint size)
2297 mono_image_set_lock (set);
2299 set->mempool = mono_mempool_new_size (1024);
2300 res = mono_mempool_alloc (set->mempool, size);
2301 mono_image_set_unlock (set);
2307 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2311 mono_image_set_lock (set);
2313 set->mempool = mono_mempool_new_size (1024);
2314 res = mono_mempool_alloc0 (set->mempool, size);
2315 mono_image_set_unlock (set);
2321 mono_image_set_strdup (MonoImageSet *set, const char *s)
2325 mono_image_set_lock (set);
2327 set->mempool = mono_mempool_new_size (1024);
2328 res = mono_mempool_strdup (set->mempool, s);
2329 mono_image_set_unlock (set);
2335 * Structure used by the collect_..._images functions to store the image list.
2338 MonoImage *image_buf [64];
2340 int nimages, images_len;
2344 collect_data_init (CollectData *data)
2346 data->images = data->image_buf;
2347 data->images_len = 64;
2352 collect_data_free (CollectData *data)
2354 if (data->images != data->image_buf)
2355 g_free (data->images);
2359 enlarge_data (CollectData *data)
2361 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2362 MonoImage **d = g_new (MonoImage *, new_len);
2365 g_assert_not_reached ();
2366 memcpy (d, data->images, data->images_len);
2367 if (data->images != data->image_buf)
2368 g_free (data->images);
2370 data->images_len = new_len;
2374 add_image (MonoImage *image, CollectData *data)
2378 /* The arrays are small, so use a linear search instead of a hash table */
2379 for (i = 0; i < data->nimages; ++i)
2380 if (data->images [i] == image)
2383 if (data->nimages == data->images_len)
2384 enlarge_data (data);
2386 data->images [data->nimages ++] = image;
2390 collect_type_images (MonoType *type, CollectData *data);
2393 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2397 for (i = 0; i < ginst->type_argc; ++i) {
2398 collect_type_images (ginst->type_argv [i], data);
2403 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2405 add_image (gclass->container_class->image, data);
2406 if (gclass->context.class_inst)
2407 collect_ginst_images (gclass->context.class_inst, data);
2411 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2413 gpointer iter = NULL;
2416 collect_type_images (mono_signature_get_return_type (sig), data);
2417 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2418 collect_type_images (p, data);
2422 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2424 collect_signature_images (sig->sig, data);
2425 if (sig->context.class_inst)
2426 collect_ginst_images (sig->context.class_inst, data);
2427 if (sig->context.method_inst)
2428 collect_ginst_images (sig->context.method_inst, data);
2432 collect_method_images (MonoMethodInflated *method, CollectData *data)
2434 add_image (method->declaring->klass->image, data);
2435 if (method->context.class_inst)
2436 collect_ginst_images (method->context.class_inst, data);
2437 if (method->context.method_inst)
2438 collect_ginst_images (method->context.method_inst, data);
2440 if (((MonoMethod*)method)->signature)
2441 collect_signature_images (mono_method_signature ((MonoMethod*)method), data);
2446 collect_type_images (MonoType *type, CollectData *data)
2449 switch (type->type) {
2450 case MONO_TYPE_GENERICINST:
2451 collect_gclass_images (type->data.generic_class, data);
2454 type = type->data.type;
2456 case MONO_TYPE_SZARRAY:
2457 type = &type->data.klass->byval_arg;
2459 case MONO_TYPE_ARRAY:
2460 type = &type->data.array->eklass->byval_arg;
2462 case MONO_TYPE_FNPTR:
2463 //return signature_in_image (type->data.method, image);
2464 g_assert_not_reached ();
2465 case MONO_TYPE_VAR: {
2466 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2468 g_assert (!container->is_method);
2470 * FIXME: The following check is here solely
2471 * for monodis, which uses the internal
2473 * mono_metadata_load_generic_params(). The
2474 * caller of that function needs to fill in
2475 * owner->klass or owner->method of the
2476 * returned struct, but monodis doesn't do
2477 * that. The image unloading depends on that,
2478 * however, so a crash results without this
2481 if (!container->owner.klass)
2482 add_image (container->image, data);
2484 add_image (container->owner.klass->image, data);
2486 add_image (type->data.generic_param->image, data);
2490 case MONO_TYPE_MVAR: {
2491 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2492 if (type->data.generic_param->image)
2493 add_image (type->data.generic_param->image, data);
2495 if (!container->owner.method) {
2496 /* RefEmit created generic param whose method is not finished */
2497 add_image (container->image, data);
2499 g_assert (container->is_method);
2500 add_image (container->owner.method->klass->image, data);
2503 add_image (type->data.generic_param->image, data);
2507 case MONO_TYPE_CLASS:
2508 case MONO_TYPE_VALUETYPE:
2509 add_image (mono_class_from_mono_type (type)->image, data);
2512 add_image (mono_defaults.corlib, data);
2519 } CleanForImageUserData;
2522 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2524 MonoGenericClass *gclass = key;
2525 CleanForImageUserData *user_data = data;
2527 g_assert (gclass_in_image (gclass, user_data->image));
2529 user_data->list = g_slist_prepend (user_data->list, gclass);
2534 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2536 MonoGenericInst *ginst = key;
2537 CleanForImageUserData *user_data = data;
2539 // This doesn't work during corlib compilation
2540 //g_assert (ginst_in_image (ginst, user_data->image));
2542 user_data->list = g_slist_prepend (user_data->list, ginst);
2547 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2549 MonoImage *image = data;
2550 MonoMethodInflated *method = key;
2553 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2554 g_assert (method->declaring->klass->image == image ||
2555 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2556 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2562 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2564 MonoImage *image = data;
2565 MonoInflatedMethodSignature *sig = key;
2567 return signature_in_image (sig->sig, image) ||
2568 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2569 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2573 check_gmethod (gpointer key, gpointer value, gpointer data)
2575 MonoMethodInflated *method = key;
2576 MonoImage *image = data;
2578 if (method->context.class_inst)
2579 g_assert (!ginst_in_image (method->context.class_inst, image));
2580 if (method->context.method_inst)
2581 g_assert (!ginst_in_image (method->context.method_inst, image));
2582 if (((MonoMethod*)method)->signature)
2583 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2589 * Run a consistency check on the image set data structures.
2591 static G_GNUC_UNUSED void
2592 check_image_sets (MonoImage *image)
2595 GSList *l = image->image_sets;
2600 for (i = 0; i < image_sets->len; ++i) {
2601 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2603 if (!g_slist_find (l, set)) {
2604 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2610 mono_metadata_clean_for_image (MonoImage *image)
2612 CleanForImageUserData ginst_data, gclass_data;
2613 GSList *l, *set_list, *free_list = NULL;
2615 //check_image_sets (image);
2618 * The data structures could reference each other so we delete them in two phases.
2619 * This is required because of the hashing functions in gclass/ginst_cache.
2621 ginst_data.image = gclass_data.image = image;
2622 ginst_data.list = gclass_data.list = NULL;
2623 mono_loader_lock ();
2625 /* Collect the items to delete */
2626 /* delete_image_set () modifies the lists so make a copy */
2627 for (l = image->image_sets; l; l = l->next) {
2628 MonoImageSet *set = l->data;
2630 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2631 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2632 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2633 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2636 /* Delete the removed items */
2637 for (l = ginst_data.list; l; l = l->next)
2638 free_generic_inst (l->data);
2639 for (l = gclass_data.list; l; l = l->next)
2640 free_generic_class (l->data);
2641 g_slist_free (ginst_data.list);
2642 g_slist_free (gclass_data.list);
2643 /* delete_image_set () modifies the lists so make a copy */
2644 set_list = g_slist_copy (image->image_sets);
2645 for (l = set_list; l; l = l->next) {
2646 MonoImageSet *set = l->data;
2648 delete_image_set (set);
2650 g_slist_free (set_list);
2652 mono_loader_unlock ();
2658 free_inflated_method (MonoMethodInflated *imethod)
2661 MonoMethod *method = (MonoMethod*)imethod;
2663 mono_marshal_free_inflated_wrappers (method);
2665 if (method->signature)
2666 mono_metadata_free_inflated_signature (method->signature);
2668 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))) {
2669 MonoMethodHeader *header = imethod->header;
2672 /* Allocated in inflate_generic_header () */
2673 for (i = 0; i < header->num_locals; ++i)
2674 mono_metadata_free_type (header->locals [i]);
2675 g_free (header->clauses);
2684 free_generic_inst (MonoGenericInst *ginst)
2688 /* The ginst itself is allocated from the image set mempool */
2689 for (i = 0; i < ginst->type_argc; ++i)
2690 mono_metadata_free_type (ginst->type_argv [i]);
2694 free_generic_class (MonoGenericClass *gclass)
2696 /* The gclass itself is allocated from the image set mempool */
2697 if (gclass->is_dynamic)
2698 mono_reflection_free_dynamic_generic_class (gclass);
2702 free_inflated_signature (MonoInflatedMethodSignature *sig)
2704 mono_metadata_free_inflated_signature (sig->sig);
2709 * LOCKING: assumes the loader lock is held.
2712 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2717 collect_data_init (&data);
2719 collect_method_images (method, &data);
2721 set = get_image_set (data.images, data.nimages);
2723 collect_data_free (&data);
2726 g_hash_table_insert (set->gmethod_cache, method, method);
2730 return g_hash_table_lookup (set->gmethod_cache, method);
2735 * mono_metadata_get_inflated_signature:
2737 * Given an inflated signature and a generic context, return a canonical copy of the
2738 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2740 MonoMethodSignature *
2741 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2743 MonoInflatedMethodSignature helper;
2744 MonoInflatedMethodSignature *res;
2748 mono_loader_lock ();
2751 helper.context.class_inst = context->class_inst;
2752 helper.context.method_inst = context->method_inst;
2754 collect_data_init (&data);
2756 collect_inflated_signature_images (&helper, &data);
2758 set = get_image_set (data.images, data.nimages);
2760 collect_data_free (&data);
2762 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2764 res = g_new0 (MonoInflatedMethodSignature, 1);
2766 res->context.class_inst = context->class_inst;
2767 res->context.method_inst = context->method_inst;
2768 g_hash_table_insert (set->gsignature_cache, res, res);
2771 mono_loader_unlock ();
2776 * mono_metadata_get_generic_inst:
2778 * Given a list of types, return a MonoGenericInst that represents that list.
2779 * The returned MonoGenericInst has its own copy of the list of types. The list
2780 * passed in the argument can be freed, modified or disposed of.
2784 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2786 MonoGenericInst *ginst;
2789 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2793 for (i = 0; i < type_argc; ++i)
2794 if (mono_class_is_open_constructed_type (type_argv [i]))
2796 is_open = (i < type_argc);
2798 ginst = alloca (size);
2799 #ifndef MONO_SMALL_CONFIG
2802 ginst->is_open = is_open;
2803 ginst->type_argc = type_argc;
2804 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2806 mono_loader_lock ();
2808 collect_data_init (&data);
2810 collect_ginst_images (ginst, &data);
2812 set = get_image_set (data.images, data.nimages);
2814 collect_data_free (&data);
2816 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2818 ginst = mono_image_set_alloc0 (set, size);
2819 #ifndef MONO_SMALL_CONFIG
2820 ginst->id = ++next_generic_inst_id;
2822 ginst->is_open = is_open;
2823 ginst->type_argc = type_argc;
2825 for (i = 0; i < type_argc; ++i)
2826 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2828 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2831 mono_loader_unlock ();
2836 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2838 MonoGenericContainer *container = container_class->generic_container;
2840 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2842 return inst == container->context.class_inst;
2846 * mono_metadata_lookup_generic_class:
2848 * Returns a MonoGenericClass with the given properties.
2852 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2854 MonoGenericClass *gclass;
2855 MonoGenericClass helper;
2856 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2860 helper.container_class = container_class;
2861 helper.context.class_inst = inst;
2862 helper.context.method_inst = NULL;
2863 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2864 helper.is_tb_open = is_tb_open;
2865 helper.cached_class = NULL;
2867 mono_loader_lock ();
2869 collect_data_init (&data);
2871 collect_gclass_images (&helper, &data);
2873 set = get_image_set (data.images, data.nimages);
2875 collect_data_free (&data);
2877 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
2879 /* A tripwire just to keep us honest */
2880 g_assert (!helper.cached_class);
2883 mono_loader_unlock ();
2888 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
2889 gclass = &dgclass->generic_class;
2890 gclass->is_dynamic = 1;
2892 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
2895 gclass->is_tb_open = is_tb_open;
2896 gclass->container_class = container_class;
2897 gclass->context.class_inst = inst;
2898 gclass->context.method_inst = NULL;
2899 gclass->owner = set;
2900 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2901 gclass->cached_class = container_class;
2903 g_hash_table_insert (set->gclass_cache, gclass, gclass);
2905 mono_loader_unlock ();
2911 * mono_metadata_inflate_generic_inst:
2913 * Instantiate the generic instance @ginst with the context @context.
2914 * Check @error for success.
2918 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
2920 MonoType **type_argv;
2921 MonoGenericInst *nginst = NULL;
2924 mono_error_init (error);
2926 if (!ginst->is_open)
2929 type_argv = g_new0 (MonoType*, ginst->type_argc);
2931 for (i = 0; i < ginst->type_argc; i++) {
2932 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
2933 if (!mono_error_ok (error))
2938 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2941 for (i = 0; i < count; i++)
2942 mono_metadata_free_type (type_argv [i]);
2949 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2950 int count, const char *ptr, const char **rptr)
2952 MonoType **type_argv;
2953 MonoGenericInst *ginst;
2956 type_argv = g_new0 (MonoType*, count);
2958 for (i = 0; i < count; i++) {
2959 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2970 ginst = mono_metadata_get_generic_inst (count, type_argv);
2978 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2979 const char *ptr, const char **rptr)
2981 MonoGenericInst *inst;
2986 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2990 gklass = mono_class_from_mono_type (gtype);
2991 if (!gklass->generic_container)
2994 count = mono_metadata_decode_value (ptr, &ptr);
2995 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
3002 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3008 * @gc: The generic container to normalize
3009 * @type: The kind of generic parameters the resulting generic-container should contain
3012 static MonoGenericContainer *
3013 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3015 gboolean is_var = (type == MONO_TYPE_VAR);
3019 g_assert (is_var || type == MONO_TYPE_MVAR);
3022 if (gc->is_method || gc->parent)
3024 * The current MonoGenericContainer is a generic method -> its `parent'
3025 * points to the containing class'es container.
3034 * mono_metadata_parse_generic_param:
3035 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3036 * see mono_metadata_parse_type_full() for details.
3037 * Internal routine to parse a generic type parameter.
3038 * LOCKING: Acquires the loader lock
3040 static MonoGenericParam *
3041 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3042 MonoTypeEnum type, const char *ptr, const char **rptr)
3044 int index = mono_metadata_decode_value (ptr, &ptr);
3048 generic_container = select_container (generic_container, type);
3049 if (!generic_container) {
3050 /* Create dummy MonoGenericParam */
3051 MonoGenericParam *param;
3053 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3060 if (index >= generic_container->type_argc)
3063 return mono_generic_container_get_param (generic_container, index);
3067 * mono_metadata_get_shared_type:
3069 * Return a shared instance of TYPE, if available, NULL otherwise.
3070 * Shared MonoType instances help save memory. Their contents should not be modified
3071 * by the caller. They do not need to be freed as their lifetime is bound by either
3072 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3073 * instance they are embedded in. If they are freed, they should be freed using
3074 * mono_metadata_free_type () instead of g_free ().
3077 mono_metadata_get_shared_type (MonoType *type)
3081 /* No need to use locking since nobody is modifying the hash table */
3082 if ((cached = g_hash_table_lookup (type_cache, type)))
3085 switch (type->type){
3086 case MONO_TYPE_CLASS:
3087 case MONO_TYPE_VALUETYPE:
3088 if (type == &type->data.klass->byval_arg)
3090 if (type == &type->data.klass->this_arg)
3099 * do_mono_metadata_parse_type:
3100 * @type: MonoType to be filled in with the return value
3102 * @generic_context: generics_context
3103 * @transient: whenever to allocate data from the heap
3104 * @ptr: pointer to the encoded type
3105 * @rptr: pointer where the end of the encoded type is saved
3107 * Internal routine used to "fill" the contents of @type from an
3108 * allocated pointer. This is done this way to avoid doing too
3109 * many mini-allocations (particularly for the MonoFieldType which
3110 * most of the time is just a MonoType, but sometimes might be augmented).
3112 * This routine is used by mono_metadata_parse_type and
3113 * mono_metadata_parse_field_type
3115 * This extracts a Type as specified in Partition II (22.2.12)
3117 * Returns: FALSE if the type could not be loaded
3120 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3121 gboolean transient, const char *ptr, const char **rptr)
3124 type->type = mono_metadata_decode_value (ptr, &ptr);
3126 switch (type->type){
3127 case MONO_TYPE_VOID:
3128 case MONO_TYPE_BOOLEAN:
3129 case MONO_TYPE_CHAR:
3142 case MONO_TYPE_STRING:
3143 case MONO_TYPE_OBJECT:
3144 case MONO_TYPE_TYPEDBYREF:
3146 case MONO_TYPE_VALUETYPE:
3147 case MONO_TYPE_CLASS: {
3150 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3151 class = mono_class_get (m, token);
3152 type->data.klass = class;
3155 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3156 * See mcs/test/gtest-440. and #650936.
3157 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3159 if (class->byval_arg.type && class->byval_arg.type != type->type)
3163 case MONO_TYPE_SZARRAY: {
3164 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3167 type->data.klass = mono_class_from_mono_type (etype);
3168 if (!type->data.klass)
3173 type->data.type = mono_metadata_parse_type_internal (m, container, MONO_PARSE_MOD_TYPE, 0, transient, ptr, &ptr);
3174 if (!type->data.type)
3177 case MONO_TYPE_FNPTR:
3178 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
3179 if (!type->data.method)
3182 case MONO_TYPE_ARRAY:
3183 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr);
3184 if (!type->data.array)
3187 case MONO_TYPE_MVAR:
3188 if (container && !container->is_method)
3191 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
3192 if (!type->data.generic_param)
3195 case MONO_TYPE_GENERICINST:
3196 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3199 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3209 * mono_metadata_free_type:
3210 * @type: type to free
3212 * Free the memory allocated for type @type which is allocated on the heap.
3215 mono_metadata_free_type (MonoType *type)
3217 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3220 switch (type->type){
3221 case MONO_TYPE_OBJECT:
3222 case MONO_TYPE_STRING:
3223 if (!type->data.klass)
3226 case MONO_TYPE_CLASS:
3227 case MONO_TYPE_VALUETYPE:
3228 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3232 mono_metadata_free_type (type->data.type);
3234 case MONO_TYPE_FNPTR:
3235 mono_metadata_free_method_signature (type->data.method);
3237 case MONO_TYPE_ARRAY:
3238 mono_metadata_free_array (type->data.array);
3247 hex_dump (const char *buffer, int base, int count)
3249 int show_header = 1;
3257 for (i = 0; i < count; i++){
3260 printf ("\n0x%08x: ", (unsigned char) base + i);
3262 printf ("%02x ", (unsigned char) (buffer [i]));
3269 * @ptr: Points to the beginning of the Section Data (25.3)
3271 static MonoExceptionClause*
3272 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3274 unsigned char sect_data_flags;
3275 const unsigned char *sptr;
3277 guint32 sect_data_len;
3278 MonoExceptionClause* clauses = NULL;
3281 /* align on 32-bit boundary */
3282 sptr = ptr = dword_align (ptr);
3283 sect_data_flags = *ptr;
3286 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3288 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3291 sect_data_len = ptr [0];
3295 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
3296 hex_dump (sptr, 0, sect_data_len+8);
3297 g_print ("\nheader: ");
3298 hex_dump (sptr-4, 0, 4);
3302 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3303 const unsigned char *p = dword_align (ptr);
3305 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3306 /* we could just store a pointer if we don't need to byteswap */
3307 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3308 for (i = 0; i < *num_clauses; ++i) {
3309 MonoExceptionClause *ec = &clauses [i];
3312 ec->flags = read32 (p);
3313 ec->try_offset = read32 (p + 4);
3314 ec->try_len = read32 (p + 8);
3315 ec->handler_offset = read32 (p + 12);
3316 ec->handler_len = read32 (p + 16);
3317 tof_value = read32 (p + 20);
3320 ec->flags = read16 (p);
3321 ec->try_offset = read16 (p + 2);
3322 ec->try_len = *(p + 4);
3323 ec->handler_offset = read16 (p + 5);
3324 ec->handler_len = *(p + 7);
3325 tof_value = read32 (p + 8);
3328 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3329 ec->data.filter_offset = tof_value;
3330 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3331 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
3333 ec->data.catch_class = NULL;
3335 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3339 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3340 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3347 * mono_method_get_header_summary:
3348 * @method: The method to get the header.
3349 * @summary: Where to store the header
3352 * Returns: true if the header was properly decoded.
3355 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3361 unsigned char flags, format;
3364 /*Only the GMD has a pointer to the metadata.*/
3365 while (method->is_inflated)
3366 method = ((MonoMethodInflated*)method)->declaring;
3368 summary->code_size = 0;
3369 summary->has_clauses = FALSE;
3371 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3372 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))
3375 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3376 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3379 summary->code_size = header->code_size;
3380 summary->has_clauses = header->num_clauses > 0;
3385 idx = mono_metadata_token_index (method->token);
3386 img = method->klass->image;
3387 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3389 /*We must run the verifier since we'll be decoding it.*/
3390 if (!mono_verifier_verify_method_header (img, rva, NULL))
3393 ptr = mono_image_rva_map (img, rva);
3396 flags = *(const unsigned char *)ptr;
3397 format = flags & METHOD_HEADER_FORMAT_MASK;
3400 case METHOD_HEADER_TINY_FORMAT:
3402 summary->code_size = flags >> 2;
3404 case METHOD_HEADER_FAT_FORMAT:
3405 fat_flags = read16 (ptr);
3407 summary->code_size = read32 (ptr);
3408 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3409 summary->has_clauses = TRUE;
3418 * mono_metadata_parse_mh_full:
3419 * @m: metadata context
3420 * @generic_context: generics context
3421 * @ptr: pointer to the method header.
3423 * Decode the method header at @ptr, including pointer to the IL code,
3424 * info about local variables and optional exception tables.
3425 * This is a Mono runtime internal function.
3427 * LOCKING: Acquires the loader lock.
3429 * Returns: a transient MonoMethodHeader allocated from the heap.
3432 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3434 MonoMethodHeader *mh;
3435 unsigned char flags = *(const unsigned char *) ptr;
3436 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3438 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3439 const unsigned char *code;
3440 MonoExceptionClause* clauses = NULL;
3441 int hsize, num_clauses = 0;
3442 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3443 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3445 g_return_val_if_fail (ptr != NULL, NULL);
3448 case METHOD_HEADER_TINY_FORMAT:
3449 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3452 mh->is_transient = TRUE;
3453 local_var_sig_tok = 0;
3454 mh->code_size = flags >> 2;
3455 mh->code = (unsigned char*)ptr;
3457 case METHOD_HEADER_FAT_FORMAT:
3458 fat_flags = read16 (ptr);
3460 hsize = (fat_flags >> 12) & 0xf;
3461 max_stack = read16 (ptr);
3463 code_size = read32 (ptr);
3465 local_var_sig_tok = read32 (ptr);
3468 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3473 code = (unsigned char*)ptr;
3475 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3479 * There are more sections
3481 ptr = (char*)code + code_size;
3487 if (local_var_sig_tok) {
3488 int idx = (local_var_sig_tok & 0xffffff)-1;
3489 if (idx >= t->rows || idx < 0)
3491 mono_metadata_decode_row (t, idx, cols, 1);
3493 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3496 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3497 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3498 if (local_var_sig_tok) {
3499 const char *locals_ptr;
3500 int len=0, i, bsize;
3502 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3503 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3504 if (*locals_ptr != 0x07)
3505 g_warning ("wrong signature for locals blob");
3507 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3508 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3509 mh->num_locals = len;
3510 for (i = 0; i < len; ++i) {
3511 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3512 MONO_PARSE_LOCAL, 0, TRUE, locals_ptr, &locals_ptr);
3513 if (!mh->locals [i]) {
3520 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3523 mh->code_size = code_size;
3524 mh->max_stack = max_stack;
3525 mh->is_transient = TRUE;
3526 mh->init_locals = init_locals;
3528 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3529 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3531 mh->clauses = clausesp;
3532 mh->num_clauses = num_clauses;
3538 * mono_metadata_parse_mh:
3539 * @generic_context: generics context
3540 * @ptr: pointer to the method header.
3542 * Decode the method header at @ptr, including pointer to the IL code,
3543 * info about local variables and optional exception tables.
3544 * This is a Mono runtime internal function.
3546 * Returns: a MonoMethodHeader.
3549 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3551 MonoMethodHeader *res;
3553 mono_loader_lock ();
3555 res = mono_metadata_parse_mh_full (m, NULL, ptr);
3557 mono_loader_unlock ();
3563 * mono_metadata_free_mh:
3564 * @mh: a method header
3566 * Free the memory allocated for the method header.
3569 mono_metadata_free_mh (MonoMethodHeader *mh)
3573 /* If it is not transient it means it's part of a wrapper method,
3574 * or a SRE-generated method, so the lifetime in that case is
3575 * dictated by the method's own lifetime
3577 if (mh->is_transient) {
3578 for (i = 0; i < mh->num_locals; ++i)
3579 mono_metadata_free_type (mh->locals [i]);
3585 * mono_method_header_get_code:
3586 * @header: a MonoMethodHeader pointer
3587 * @code_size: memory location for returning the code size
3588 * @max_stack: memory location for returning the max stack
3590 * Method header accessor to retreive info about the IL code properties:
3591 * a pointer to the IL code itself, the size of the code and the max number
3592 * of stack slots used by the code.
3594 * Returns: pointer to the IL code represented by the method header.
3596 const unsigned char*
3597 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3600 *code_size = header->code_size;
3602 *max_stack = header->max_stack;
3603 return header->code;
3607 * mono_method_header_get_locals:
3608 * @header: a MonoMethodHeader pointer
3609 * @num_locals: memory location for returning the number of local variables
3610 * @init_locals: memory location for returning the init_locals flag
3612 * Method header accessor to retreive info about the local variables:
3613 * an array of local types, the number of locals and whether the locals
3614 * are supposed to be initialized to 0 on method entry
3616 * Returns: pointer to an array of types of the local variables
3619 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3622 *num_locals = header->num_locals;
3624 *init_locals = header->init_locals;
3625 return header->locals;
3629 * mono_method_header_get_num_clauses:
3630 * @header: a MonoMethodHeader pointer
3632 * Method header accessor to retreive the number of exception clauses.
3634 * Returns: the number of exception clauses present
3637 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3639 return header->num_clauses;
3643 * mono_method_header_get_clauses:
3644 * @header: a MonoMethodHeader pointer
3645 * @method: MonoMethod the header belongs to
3646 * @iter: pointer to a iterator
3647 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3649 * Get the info about the exception clauses in the method. Set *iter to NULL to
3650 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3651 * At each iteration, the structure pointed to by clause if filled with the
3652 * exception clause information.
3654 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3658 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3660 MonoExceptionClause *sc;
3661 /* later we'll be able to use this interface to parse the clause info on demand,
3662 * without allocating anything.
3664 if (!iter || !header->num_clauses)
3667 *iter = sc = header->clauses;
3673 if (sc < header->clauses + header->num_clauses) {
3682 * mono_metadata_parse_field_type:
3683 * @m: metadata context to extract information from
3684 * @ptr: pointer to the field signature
3685 * @rptr: pointer updated to match the end of the decoded stream
3687 * Parses the field signature, and returns the type information for it.
3689 * Returns: The MonoType that was extracted from @ptr.
3692 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3694 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3698 * mono_metadata_parse_param:
3699 * @m: metadata context to extract information from
3700 * @ptr: pointer to the param signature
3701 * @rptr: pointer updated to match the end of the decoded stream
3703 * Parses the param signature, and returns the type information for it.
3705 * Returns: The MonoType that was extracted from @ptr.
3708 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3710 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3714 * mono_metadata_token_from_dor:
3715 * @dor_token: A TypeDefOrRef coded index
3717 * dor_token is a TypeDefOrRef coded index: it contains either
3718 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3719 * bits contain an index into the table.
3721 * Returns: an expanded token
3724 mono_metadata_token_from_dor (guint32 dor_index)
3728 table = dor_index & 0x03;
3729 idx = dor_index >> 2;
3732 case 0: /* TypeDef */
3733 return MONO_TOKEN_TYPE_DEF | idx;
3734 case 1: /* TypeRef */
3735 return MONO_TOKEN_TYPE_REF | idx;
3736 case 2: /* TypeSpec */
3737 return MONO_TOKEN_TYPE_SPEC | idx;
3739 g_assert_not_reached ();
3746 * We use this to pass context information to the row locator
3749 int idx; /* The index that we are trying to locate */
3750 int col_idx; /* The index in the row where idx may be stored */
3751 MonoTableInfo *t; /* pointer to the table */
3756 * How the row locator works.
3761 * ___|___------> _______
3764 * A column in the rows of table A references an index in table B.
3765 * For example A may be the TYPEDEF table and B the METHODDEF table.
3767 * Given an index in table B we want to get the row in table A
3768 * where the column n references our index in B.
3770 * In the locator_t structure:
3772 * col_idx is the column number
3773 * index is the index in table B
3774 * result will be the index in table A
3777 * Table A Table B column (in table A)
3778 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3779 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3780 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3781 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3782 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3784 * Note that we still don't support encoded indexes.
3788 typedef_locator (const void *a, const void *b)
3790 locator_t *loc = (locator_t *) a;
3791 const char *bb = (const char *) b;
3792 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3793 guint32 col, col_next;
3795 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3801 * Need to check that the next row is valid.
3803 if (typedef_index + 1 < loc->t->rows) {
3804 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3805 if (loc->idx >= col_next)
3808 if (col == col_next)
3812 loc->result = typedef_index;
3818 table_locator (const void *a, const void *b)
3820 locator_t *loc = (locator_t *) a;
3821 const char *bb = (const char *) b;
3822 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3825 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3827 if (loc->idx == col) {
3828 loc->result = table_index;
3838 declsec_locator (const void *a, const void *b)
3840 locator_t *loc = (locator_t *) a;
3841 const char *bb = (const char *) b;
3842 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3845 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3847 if (loc->idx == col) {
3848 loc->result = table_index;
3860 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3861 * which contains IDX.
3864 search_ptr_table (MonoImage *image, int table, int idx)
3866 MonoTableInfo *ptrdef = &image->tables [table];
3869 /* Use a linear search to find our index in the table */
3870 for (i = 0; i < ptrdef->rows; i ++)
3871 /* All the Ptr tables have the same structure */
3872 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3875 if (i < ptrdef->rows)
3882 * mono_metadata_typedef_from_field:
3883 * @meta: metadata context
3884 * @index: FieldDef token
3886 * Returns: the 1-based index into the TypeDef table of the type that
3887 * declared the field described by @index, or 0 if not found.
3890 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3892 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3898 loc.idx = mono_metadata_token_index (index);
3899 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3902 if (meta->uncompressed_metadata)
3903 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3905 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3908 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3909 return loc.result + 1;
3913 * mono_metadata_typedef_from_method:
3914 * @meta: metadata context
3915 * @index: MethodDef token
3917 * Returns: the 1-based index into the TypeDef table of the type that
3918 * declared the method described by @index. 0 if not found.
3921 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3923 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3929 loc.idx = mono_metadata_token_index (index);
3930 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3933 if (meta->uncompressed_metadata)
3934 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3936 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3939 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3940 return loc.result + 1;
3944 * mono_metadata_interfaces_from_typedef_full:
3945 * @meta: metadata context
3946 * @index: typedef token
3947 * @interfaces: Out parameter used to store the interface array
3948 * @count: Out parameter used to store the number of interfaces
3949 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
3950 * @context: The generic context
3952 * The array of interfaces that the @index typedef token implements is returned in
3953 * @interfaces. The number of elements in the array is returned in @count.
3955 * LOCKING: Assumes the loader lock is held.
3957 * Returns: TRUE on success, FALSE on failure.
3960 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context)
3962 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3965 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3974 loc.idx = mono_metadata_token_index (index);
3975 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3978 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3983 * We may end up in the middle of the rows...
3986 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
3992 while (pos < tdef->rows) {
3993 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3994 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3999 if (heap_alloc_result)
4000 result = g_new0 (MonoClass*, pos - start);
4002 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4005 while (pos < tdef->rows) {
4008 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4009 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4011 iface = mono_class_get_full (
4012 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
4015 result [pos - start] = iface;
4018 *count = pos - start;
4019 *interfaces = result;
4024 * @meta: metadata context
4025 * @index: typedef token
4026 * @count: Out parameter used to store the number of interfaces
4028 * The array of interfaces that the @index typedef token implements is returned in
4029 * @interfaces. The number of elements in the array is returned in @count. The returned
4030 * array is g_malloc'd and the caller must free it.
4032 * LOCKING: Acquires the loader lock .
4034 * Returns: the interface array on success, NULL on failure.
4038 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4040 MonoClass **interfaces;
4043 mono_loader_lock ();
4044 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL);
4045 mono_loader_unlock ();
4053 * mono_metadata_nested_in_typedef:
4054 * @meta: metadata context
4055 * @index: typedef token
4057 * Returns: the 1-based index into the TypeDef table of the type
4058 * where the type described by @index is nested.
4059 * Retruns 0 if @index describes a non-nested type.
4062 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4064 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4070 loc.idx = mono_metadata_token_index (index);
4071 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4074 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4077 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4078 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4082 * mono_metadata_nesting_typedef:
4083 * @meta: metadata context
4084 * @index: typedef token
4086 * Returns: the 1-based index into the TypeDef table of the first type
4087 * that is nested inside the type described by @index. The search starts at
4088 * @start_index. returns 0 if no such type is found.
4091 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4093 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4095 guint32 class_index = mono_metadata_token_index (index);
4100 start = start_index;
4102 while (start <= tdef->rows) {
4103 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4109 if (start > tdef->rows)
4116 * mono_metadata_packing_from_typedef:
4117 * @meta: metadata context
4118 * @index: token representing a type
4120 * Returns: the info stored in the ClassLAyout table for the given typedef token
4121 * into the @packing and @size pointers.
4122 * Returns 0 if the info is not found.
4125 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4127 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4129 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4134 loc.idx = mono_metadata_token_index (index);
4135 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4138 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4141 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4143 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4145 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4147 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4148 return loc.result + 1;
4152 * mono_metadata_custom_attrs_from_index:
4153 * @meta: metadata context
4154 * @index: token representing the parent
4156 * Returns: the 1-based index into the CustomAttribute table of the first
4157 * attribute which belongs to the metadata object described by @index.
4158 * Returns 0 if no such attribute is found.
4161 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4163 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4170 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4173 /* FIXME: Index translation */
4175 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4178 /* Find the first entry by searching backwards */
4179 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4182 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4183 return loc.result + 1;
4187 * mono_metadata_declsec_from_index:
4188 * @meta: metadata context
4189 * @index: token representing the parent
4191 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4192 * attribute which belongs to the metadata object described by @index.
4193 * Returns -1 if no such attribute is found.
4196 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4198 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4205 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4208 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4211 /* Find the first entry by searching backwards */
4212 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4220 mono_backtrace (int limit)
4225 backtrace (array, limit);
4226 names = backtrace_symbols (array, limit);
4227 for (i =0; i < limit; ++i) {
4228 g_print ("\t%s\n", names [i]);
4235 /*#define __alignof__(a) sizeof(a)*/
4236 #define __alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
4241 * @t: the type to return the size of
4243 * Returns: the number of bytes required to hold an instance of this
4247 mono_type_size (MonoType *t, int *align)
4254 *align = __alignof__(gpointer);
4255 return sizeof (gpointer);
4259 case MONO_TYPE_VOID:
4262 case MONO_TYPE_BOOLEAN:
4263 *align = __alignof__(gint8);
4267 *align = __alignof__(gint8);
4269 case MONO_TYPE_CHAR:
4272 *align = __alignof__(gint16);
4276 *align = __alignof__(gint32);
4279 *align = __alignof__(float);
4283 *align = __alignof__(gint64);
4286 *align = __alignof__(double);
4290 *align = __alignof__(gpointer);
4291 return sizeof (gpointer);
4292 case MONO_TYPE_STRING:
4293 *align = __alignof__(gpointer);
4294 return sizeof (gpointer);
4295 case MONO_TYPE_OBJECT:
4296 *align = __alignof__(gpointer);
4297 return sizeof (gpointer);
4298 case MONO_TYPE_VALUETYPE: {
4299 if (t->data.klass->enumtype)
4300 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4302 return mono_class_value_size (t->data.klass, (guint32*)align);
4304 case MONO_TYPE_CLASS:
4305 case MONO_TYPE_SZARRAY:
4307 case MONO_TYPE_FNPTR:
4308 case MONO_TYPE_ARRAY:
4309 *align = __alignof__(gpointer);
4310 return sizeof (gpointer);
4311 case MONO_TYPE_TYPEDBYREF:
4312 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4313 case MONO_TYPE_GENERICINST: {
4314 MonoGenericClass *gclass = t->data.generic_class;
4315 MonoClass *container_class = gclass->container_class;
4317 // g_assert (!gclass->inst->is_open);
4319 if (container_class->valuetype) {
4320 if (container_class->enumtype)
4321 return mono_type_size (mono_class_enum_basetype (container_class), align);
4323 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4325 *align = __alignof__(gpointer);
4326 return sizeof (gpointer);
4330 case MONO_TYPE_MVAR:
4331 /* FIXME: Martin, this is wrong. */
4332 *align = __alignof__(gpointer);
4333 return sizeof (gpointer);
4335 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4341 * mono_type_stack_size:
4342 * @t: the type to return the size it uses on the stack
4344 * Returns: the number of bytes required to hold an instance of this
4345 * type on the runtime stack
4348 mono_type_stack_size (MonoType *t, int *align)
4350 return mono_type_stack_size_internal (t, align, FALSE);
4354 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4357 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4358 int stack_slot_size = sizeof (gpointer);
4359 int stack_slot_align = __alignof__ (gpointer);
4360 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4361 int stack_slot_size = SIZEOF_REGISTER;
4362 int stack_slot_align = SIZEOF_REGISTER;
4365 g_assert (t != NULL);
4371 *align = stack_slot_align;
4372 return stack_slot_size;
4376 case MONO_TYPE_BOOLEAN:
4377 case MONO_TYPE_CHAR:
4386 case MONO_TYPE_STRING:
4387 case MONO_TYPE_OBJECT:
4388 case MONO_TYPE_CLASS:
4389 case MONO_TYPE_SZARRAY:
4391 case MONO_TYPE_FNPTR:
4392 case MONO_TYPE_ARRAY:
4393 *align = stack_slot_align;
4394 return stack_slot_size;
4396 case MONO_TYPE_MVAR:
4397 g_assert (allow_open);
4398 *align = stack_slot_align;
4399 return stack_slot_size;
4400 case MONO_TYPE_TYPEDBYREF:
4401 *align = stack_slot_align;
4402 return stack_slot_size * 3;
4404 *align = __alignof__(float);
4405 return sizeof (float);
4408 *align = __alignof__(gint64);
4409 return sizeof (gint64);
4411 *align = __alignof__(double);
4412 return sizeof (double);
4413 case MONO_TYPE_VALUETYPE: {
4416 if (t->data.klass->enumtype)
4417 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4419 size = mono_class_value_size (t->data.klass, (guint32*)align);
4421 *align = *align + stack_slot_align - 1;
4422 *align &= ~(stack_slot_align - 1);
4424 size += stack_slot_size - 1;
4425 size &= ~(stack_slot_size - 1);
4430 case MONO_TYPE_GENERICINST: {
4431 MonoGenericClass *gclass = t->data.generic_class;
4432 MonoClass *container_class = gclass->container_class;
4435 g_assert (!gclass->context.class_inst->is_open);
4437 if (container_class->valuetype) {
4438 if (container_class->enumtype)
4439 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4441 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4443 *align = *align + stack_slot_align - 1;
4444 *align &= ~(stack_slot_align - 1);
4446 size += stack_slot_size - 1;
4447 size &= ~(stack_slot_size - 1);
4452 *align = stack_slot_align;
4453 return stack_slot_size;
4457 g_error ("type 0x%02x unknown", t->type);
4463 mono_type_generic_inst_is_valuetype (MonoType *type)
4465 g_assert (type->type == MONO_TYPE_GENERICINST);
4466 return type->data.generic_class->container_class->valuetype;
4470 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4472 return gclass->container_class->valuetype;
4476 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4478 MonoGenericInst *i1 = g1->context.class_inst;
4479 MonoGenericInst *i2 = g2->context.class_inst;
4481 if (g1->is_dynamic != g2->is_dynamic)
4483 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4485 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4487 return g1->is_tb_open == g2->is_tb_open;
4491 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4493 MonoGenericInst *i1 = g1->context.class_inst;
4494 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4496 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4498 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4500 return !g1->is_tb_open;
4504 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4506 /* FIXME: check if this seed is good enough */
4507 guint hash = 0xc01dfee7;
4508 if (context->class_inst)
4509 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4510 if (context->method_inst)
4511 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4516 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4518 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4522 * mono_metadata_str_hash:
4524 * This should be used instead of g_str_hash for computing hash codes visible
4525 * outside this module, since g_str_hash () is not guaranteed to be stable
4526 * (its not the same in eglib for example).
4529 mono_metadata_str_hash (gconstpointer v1)
4531 /* Same as g_str_hash () in glib */
4532 char *p = (char *) v1;
4537 hash = (hash << 5) - hash + *p;
4544 * mono_metadata_type_hash:
4547 * Computes an hash value for @t1 to be used in GHashTable.
4548 * The returned hash is guaranteed to be the same across executions.
4551 mono_metadata_type_hash (MonoType *t1)
4553 guint hash = t1->type;
4555 hash |= t1->byref << 6; /* do not collide with t1->type values */
4557 case MONO_TYPE_VALUETYPE:
4558 case MONO_TYPE_CLASS:
4559 case MONO_TYPE_SZARRAY: {
4560 MonoClass *class = t1->data.klass;
4562 * Dynamic classes must not be hashed on their type since it can change
4563 * during runtime. For example, if we hash a reference type that is
4564 * later made into a valuetype.
4566 * This is specially problematic with generic instances since they are
4567 * inserted in a bunch of hash tables before been finished.
4569 if (class->image->dynamic)
4570 return (t1->byref << 6) | mono_metadata_str_hash (class->name);
4571 return ((hash << 5) - hash) ^ mono_metadata_str_hash (class->name);
4574 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4575 case MONO_TYPE_ARRAY:
4576 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4577 case MONO_TYPE_GENERICINST:
4578 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4584 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4588 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4592 * We have to compare the image as well because if we didn't,
4593 * the generic_inst_cache lookup wouldn't care about the image
4594 * of generic params, so what could happen is that a generic
4595 * inst with params from image A is put into the cache, then
4596 * image B gets that generic inst from the cache, image A is
4597 * unloaded, so the inst is deleted, but image B still retains
4600 * The AOT runtime doesn't set the image when it's decoding
4601 * types, so we only compare it when the owner is NULL.
4603 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4604 (mono_generic_param_owner (p1) || p1->image == p2->image))
4608 * If `signature_only' is true, we're comparing two (method) signatures.
4609 * In this case, the owner of two type parameters doesn't need to match.
4612 return signature_only;
4616 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4620 if (c1->generic_class && c2->generic_class)
4621 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4622 if (c1->generic_class && c2->generic_container)
4623 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4624 if (c1->generic_container && c2->generic_class)
4625 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4626 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4627 return mono_metadata_generic_param_equal (
4628 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4629 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4630 return mono_metadata_generic_param_equal (
4631 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4632 if (signature_only &&
4633 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4634 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4639 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4641 gpointer iter1 = 0, iter2 = 0;
4645 if (s1->call_convention != s2->call_convention)
4647 if (s1->sentinelpos != s2->sentinelpos)
4649 if (s1->hasthis != s2->hasthis)
4651 if (s1->explicit_this != s2->explicit_this)
4653 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4655 if (s1->param_count != s2->param_count)
4659 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4660 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4662 if (t1 == NULL || t2 == NULL)
4664 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4670 * mono_metadata_type_equal:
4674 * Determine if @t1 and @t2 represent the same type.
4675 * Returns: #TRUE if @t1 and @t2 are equal.
4678 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4680 if (t1->type != t2->type || t1->byref != t2->byref)
4684 case MONO_TYPE_VOID:
4685 case MONO_TYPE_BOOLEAN:
4686 case MONO_TYPE_CHAR:
4697 case MONO_TYPE_STRING:
4700 case MONO_TYPE_OBJECT:
4701 case MONO_TYPE_TYPEDBYREF:
4703 case MONO_TYPE_VALUETYPE:
4704 case MONO_TYPE_CLASS:
4705 case MONO_TYPE_SZARRAY:
4706 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4708 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4709 case MONO_TYPE_ARRAY:
4710 if (t1->data.array->rank != t2->data.array->rank)
4712 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4713 case MONO_TYPE_GENERICINST:
4714 return _mono_metadata_generic_class_equal (
4715 t1->data.generic_class, t2->data.generic_class, signature_only);
4717 return mono_metadata_generic_param_equal (
4718 t1->data.generic_param, t2->data.generic_param, signature_only);
4719 case MONO_TYPE_MVAR:
4720 return mono_metadata_generic_param_equal (
4721 t1->data.generic_param, t2->data.generic_param, signature_only);
4722 case MONO_TYPE_FNPTR:
4723 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4725 g_error ("implement type compare for %0x!", t1->type);
4733 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
4735 return do_mono_metadata_type_equal (t1, t2, FALSE);
4739 * mono_metadata_type_equal_full:
4742 * @signature_only: if signature only comparison should be made
4744 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
4745 * behaves the same way as mono_metadata_type_equal.
4746 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
4747 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
4750 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
4752 return do_mono_metadata_type_equal (t1, t2, signature_only);
4756 * mono_metadata_signature_equal:
4757 * @sig1: a signature
4758 * @sig2: another signature
4760 * Determine if @sig1 and @sig2 represent the same signature, with the
4761 * same number of arguments and the same types.
4762 * Returns: #TRUE if @sig1 and @sig2 are equal.
4765 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4769 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4772 if (sig1->generic_param_count != sig2->generic_param_count)
4776 * We're just comparing the signatures of two methods here:
4778 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4779 * U and V are equal here.
4781 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4784 for (i = 0; i < sig1->param_count; i++) {
4785 MonoType *p1 = sig1->params[i];
4786 MonoType *p2 = sig2->params[i];
4788 /* if (p1->attrs != p2->attrs)
4791 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4795 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4801 * mono_metadata_type_dup:
4802 * @image: image to alloc memory from
4803 * @original: type to duplicate
4805 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
4808 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
4811 int sizeof_o = MONO_SIZEOF_TYPE;
4813 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
4815 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
4817 memcpy (r, o, sizeof_o);
4819 if (o->type == MONO_TYPE_PTR) {
4820 r->data.type = mono_metadata_type_dup (image, o->data.type);
4821 } else if (o->type == MONO_TYPE_ARRAY) {
4822 r->data.array = mono_dup_array_type (image, o->data.array);
4823 } else if (o->type == MONO_TYPE_FNPTR) {
4824 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
4825 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
4831 mono_signature_hash (MonoMethodSignature *sig)
4833 guint i, res = sig->ret->type;
4835 for (i = 0; i < sig->param_count; i++)
4836 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4842 * mono_metadata_encode_value:
4843 * @value: value to encode
4844 * @buf: buffer where to write the compressed representation
4845 * @endbuf: pointer updated to point at the end of the encoded output
4847 * Encodes the value @value in the compressed representation used
4848 * in metadata and stores the result in @buf. @buf needs to be big
4849 * enough to hold the data (4 bytes).
4852 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4858 else if (value < 0x4000) {
4859 p [0] = 0x80 | (value >> 8);
4860 p [1] = value & 0xff;
4863 p [0] = (value >> 24) | 0xc0;
4864 p [1] = (value >> 16) & 0xff;
4865 p [2] = (value >> 8) & 0xff;
4866 p [3] = value & 0xff;
4874 * mono_metadata_field_info:
4875 * @meta: the Image the field is defined in
4876 * @index: the index in the field table representing the field
4877 * @offset: a pointer to an integer where to store the offset that
4878 * may have been specified for the field in a FieldLayout table
4879 * @rva: a pointer to the RVA of the field data in the image that
4880 * may have been defined in a FieldRVA table
4881 * @marshal_spec: a pointer to the marshal spec that may have been
4882 * defined for the field in a FieldMarshal table.
4884 * Gather info for field @index that may have been defined in the FieldLayout,
4885 * FieldRVA and FieldMarshal tables.
4886 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4890 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4891 MonoMarshalSpec **marshal_spec)
4893 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
4897 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4898 MonoMarshalSpec **marshal_spec)
4900 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
4904 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4905 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
4907 MonoTableInfo *tdef;
4910 loc.idx = index + 1;
4911 if (meta->uncompressed_metadata)
4912 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4915 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4917 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4920 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4921 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4923 *offset = (guint32)-1;
4927 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4929 loc.col_idx = MONO_FIELD_RVA_FIELD;
4932 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4934 * LAMESPEC: There is no signature, no nothing, just the raw data.
4936 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4944 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4945 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, p);
4952 * mono_metadata_get_constant_index:
4953 * @meta: the Image the field is defined in
4954 * @index: the token that may have a row defined in the constants table
4955 * @hint: possible position for the row
4957 * @token must be a FieldDef, ParamDef or PropertyDef token.
4959 * Returns: the index into the Constants table or 0 if not found.
4962 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4964 MonoTableInfo *tdef;
4966 guint32 index = mono_metadata_token_index (token);
4968 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4969 index <<= MONO_HASCONSTANT_BITS;
4970 switch (mono_metadata_token_table (token)) {
4971 case MONO_TABLE_FIELD:
4972 index |= MONO_HASCONSTANT_FIEDDEF;
4974 case MONO_TABLE_PARAM:
4975 index |= MONO_HASCONSTANT_PARAM;
4977 case MONO_TABLE_PROPERTY:
4978 index |= MONO_HASCONSTANT_PROPERTY;
4981 g_warning ("Not a valid token for the constant table: 0x%08x", token);
4985 loc.col_idx = MONO_CONSTANT_PARENT;
4988 /* FIXME: Index translation */
4990 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
4993 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4994 return loc.result + 1;
5000 * mono_metadata_events_from_typedef:
5001 * @meta: metadata context
5002 * @index: 0-based index (in the TypeDef table) describing a type
5004 * Returns: the 0-based index in the Event table for the events in the
5005 * type. The last event that belongs to the type (plus 1) is stored
5006 * in the @end_idx pointer.
5009 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5013 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5021 loc.col_idx = MONO_EVENT_MAP_PARENT;
5022 loc.idx = index + 1;
5024 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5027 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5028 if (loc.result + 1 < tdef->rows) {
5029 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5031 end = meta->tables [MONO_TABLE_EVENT].rows;
5039 * mono_metadata_methods_from_event:
5040 * @meta: metadata context
5041 * @index: 0-based index (in the Event table) describing a event
5043 * Returns: the 0-based index in the MethodDef table for the methods in the
5044 * event. The last method that belongs to the event (plus 1) is stored
5045 * in the @end_idx pointer.
5048 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5052 guint32 cols [MONO_METHOD_SEMA_SIZE];
5053 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5059 if (meta->uncompressed_metadata)
5060 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5063 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5064 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5066 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5071 * We may end up in the middle of the rows...
5074 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5080 while (end < msemt->rows) {
5081 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5082 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5091 * mono_metadata_properties_from_typedef:
5092 * @meta: metadata context
5093 * @index: 0-based index (in the TypeDef table) describing a type
5095 * Returns: the 0-based index in the Property table for the properties in the
5096 * type. The last property that belongs to the type (plus 1) is stored
5097 * in the @end_idx pointer.
5100 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5104 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5112 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5113 loc.idx = index + 1;
5115 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5118 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5119 if (loc.result + 1 < tdef->rows) {
5120 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5122 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5130 * mono_metadata_methods_from_property:
5131 * @meta: metadata context
5132 * @index: 0-based index (in the PropertyDef table) describing a property
5134 * Returns: the 0-based index in the MethodDef table for the methods in the
5135 * property. The last method that belongs to the property (plus 1) is stored
5136 * in the @end_idx pointer.
5139 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5143 guint32 cols [MONO_METHOD_SEMA_SIZE];
5144 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5150 if (meta->uncompressed_metadata)
5151 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5154 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5155 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5157 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5162 * We may end up in the middle of the rows...
5165 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5171 while (end < msemt->rows) {
5172 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5173 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5182 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5185 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5190 /* No index translation seems to be needed */
5193 loc.col_idx = MONO_IMPLMAP_MEMBER;
5194 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5196 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5199 return loc.result + 1;
5203 * @image: context where the image is created
5204 * @type_spec: typespec token
5206 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5210 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5212 guint32 idx = mono_metadata_token_index (type_spec);
5214 guint32 cols [MONO_TYPESPEC_SIZE];
5217 MonoType *type, *type2;
5219 mono_loader_lock ();
5221 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5223 mono_loader_unlock ();
5227 t = &image->tables [MONO_TABLE_TYPESPEC];
5229 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5230 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5232 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5233 mono_loader_unlock ();
5237 len = mono_metadata_decode_value (ptr, &ptr);
5239 type = mono_metadata_parse_type_internal (image, NULL, MONO_PARSE_TYPE, 0, TRUE, ptr, &ptr);
5241 mono_loader_unlock ();
5245 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5248 mono_loader_unlock ();
5252 type2 = mono_metadata_type_dup (image, type);
5253 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5254 mono_metadata_free_type (type);
5256 mono_loader_unlock ();
5263 mono_image_strndup (MonoImage *image, const char *data, guint len)
5267 return g_strndup (data, len);
5268 res = mono_image_alloc (image, len + 1);
5269 memcpy (res, data, len);
5275 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5277 return mono_metadata_parse_marshal_spec_full (NULL, ptr);
5281 mono_metadata_parse_marshal_spec_full (MonoImage *image, const char *ptr)
5283 MonoMarshalSpec *res;
5285 const char *start = ptr;
5287 /* fixme: this is incomplete, but I cant find more infos in the specs */
5290 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5292 res = g_new0 (MonoMarshalSpec, 1);
5294 len = mono_metadata_decode_value (ptr, &ptr);
5295 res->native = *ptr++;
5297 if (res->native == MONO_NATIVE_LPARRAY) {
5298 res->data.array_data.param_num = -1;
5299 res->data.array_data.num_elem = -1;
5300 res->data.array_data.elem_mult = -1;
5302 if (ptr - start <= len)
5303 res->data.array_data.elem_type = *ptr++;
5304 if (ptr - start <= len)
5305 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5306 if (ptr - start <= len)
5307 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5308 if (ptr - start <= len) {
5310 * LAMESPEC: Older spec versions say this parameter comes before
5311 * num_elem. Never spec versions don't talk about elem_mult at
5312 * all, but csc still emits it, and it is used to distinguish
5313 * between param_num being 0, and param_num being omitted.
5314 * So if (param_num == 0) && (num_elem > 0), then
5315 * elem_mult == 0 -> the array size is num_elem
5316 * elem_mult == 1 -> the array size is @param_num + num_elem
5318 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5322 if (res->native == MONO_NATIVE_BYVALTSTR) {
5323 if (ptr - start <= len)
5324 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5327 if (res->native == MONO_NATIVE_BYVALARRAY) {
5328 if (ptr - start <= len)
5329 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5332 if (res->native == MONO_NATIVE_CUSTOM) {
5333 /* skip unused type guid */
5334 len = mono_metadata_decode_value (ptr, &ptr);
5336 /* skip unused native type name */
5337 len = mono_metadata_decode_value (ptr, &ptr);
5339 /* read custom marshaler type name */
5340 len = mono_metadata_decode_value (ptr, &ptr);
5341 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5343 /* read cookie string */
5344 len = mono_metadata_decode_value (ptr, &ptr);
5345 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5348 if (res->native == MONO_NATIVE_SAFEARRAY) {
5349 res->data.safearray_data.elem_type = 0;
5350 res->data.safearray_data.num_elem = 0;
5351 if (ptr - start <= len)
5352 res->data.safearray_data.elem_type = *ptr++;
5353 if (ptr - start <= len)
5354 res->data.safearray_data.num_elem = *ptr++;
5360 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5362 if (spec->native == MONO_NATIVE_CUSTOM) {
5363 g_free (spec->data.custom_data.custom_name);
5364 g_free (spec->data.custom_data.cookie);
5370 * mono_type_to_unmanaged:
5372 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5373 * describing the underlying native reprensetation of the type.
5375 * In addition the value pointed by
5376 * "conv" will contain the kind of marshalling required for this
5377 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5380 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5381 gboolean unicode, MonoMarshalConv *conv)
5383 MonoMarshalConv dummy_conv;
5389 *conv = MONO_MARSHAL_CONV_NONE;
5392 return MONO_NATIVE_UINT;
5396 case MONO_TYPE_BOOLEAN:
5398 switch (mspec->native) {
5399 case MONO_NATIVE_VARIANTBOOL:
5400 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5401 return MONO_NATIVE_VARIANTBOOL;
5402 case MONO_NATIVE_BOOLEAN:
5403 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5404 return MONO_NATIVE_BOOLEAN;
5405 case MONO_NATIVE_I1:
5406 case MONO_NATIVE_U1:
5407 return mspec->native;
5409 g_error ("cant marshal bool to native type %02x", mspec->native);
5412 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5413 return MONO_NATIVE_BOOLEAN;
5414 case MONO_TYPE_CHAR:
5416 switch (mspec->native) {
5417 case MONO_NATIVE_U2:
5418 case MONO_NATIVE_U1:
5419 return mspec->native;
5421 g_error ("cant marshal char to native type %02x", mspec->native);
5424 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5425 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5426 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5427 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5428 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5429 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5430 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5431 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5432 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5433 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5434 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5435 case MONO_TYPE_STRING:
5437 switch (mspec->native) {
5438 case MONO_NATIVE_BSTR:
5439 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5440 return MONO_NATIVE_BSTR;
5441 case MONO_NATIVE_LPSTR:
5442 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5443 return MONO_NATIVE_LPSTR;
5444 case MONO_NATIVE_LPWSTR:
5445 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5446 return MONO_NATIVE_LPWSTR;
5447 case MONO_NATIVE_LPTSTR:
5448 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5449 return MONO_NATIVE_LPTSTR;
5450 case MONO_NATIVE_ANSIBSTR:
5451 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5452 return MONO_NATIVE_ANSIBSTR;
5453 case MONO_NATIVE_TBSTR:
5454 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5455 return MONO_NATIVE_TBSTR;
5456 case MONO_NATIVE_BYVALTSTR:
5458 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5460 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5461 return MONO_NATIVE_BYVALTSTR;
5463 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);
5467 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5468 return MONO_NATIVE_LPWSTR;
5471 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5472 return MONO_NATIVE_LPSTR;
5474 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5475 case MONO_TYPE_VALUETYPE: /*FIXME*/
5476 if (type->data.klass->enumtype) {
5477 t = mono_class_enum_basetype (type->data.klass)->type;
5480 if (type->data.klass == mono_defaults.handleref_class){
5481 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5482 return MONO_NATIVE_INT;
5484 return MONO_NATIVE_STRUCT;
5485 case MONO_TYPE_SZARRAY:
5486 case MONO_TYPE_ARRAY:
5488 switch (mspec->native) {
5489 case MONO_NATIVE_BYVALARRAY:
5490 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5491 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5493 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5494 return MONO_NATIVE_BYVALARRAY;
5495 case MONO_NATIVE_SAFEARRAY:
5496 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5497 return MONO_NATIVE_SAFEARRAY;
5498 case MONO_NATIVE_LPARRAY:
5499 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5500 return MONO_NATIVE_LPARRAY;
5502 g_error ("cant marshal array as native type %02x", mspec->native);
5506 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5507 return MONO_NATIVE_LPARRAY;
5508 case MONO_TYPE_I: return MONO_NATIVE_INT;
5509 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5510 case MONO_TYPE_CLASS:
5511 case MONO_TYPE_OBJECT: {
5512 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5514 switch (mspec->native) {
5515 case MONO_NATIVE_STRUCT:
5516 return MONO_NATIVE_STRUCT;
5517 case MONO_NATIVE_CUSTOM:
5518 return MONO_NATIVE_CUSTOM;
5519 case MONO_NATIVE_INTERFACE:
5520 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5521 return MONO_NATIVE_INTERFACE;
5522 case MONO_NATIVE_IDISPATCH:
5523 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5524 return MONO_NATIVE_IDISPATCH;
5525 case MONO_NATIVE_IUNKNOWN:
5526 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5527 return MONO_NATIVE_IUNKNOWN;
5528 case MONO_NATIVE_FUNC:
5529 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5530 type->data.klass == mono_defaults.delegate_class ||
5531 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5532 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5533 return MONO_NATIVE_FUNC;
5537 g_error ("cant marshal object as native type %02x", mspec->native);
5540 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5541 type->data.klass == mono_defaults.delegate_class ||
5542 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5543 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5544 return MONO_NATIVE_FUNC;
5546 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5547 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5548 return MONO_NATIVE_INT;
5550 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5551 return MONO_NATIVE_STRUCT;
5553 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5554 case MONO_TYPE_GENERICINST:
5555 type = &type->data.generic_class->container_class->byval_arg;
5558 case MONO_TYPE_TYPEDBYREF:
5560 g_error ("type 0x%02x not handled in marshal", t);
5562 return MONO_NATIVE_MAX;
5566 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5569 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5575 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5576 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5578 /* FIXME: Index translation */
5580 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5583 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5587 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
5589 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5591 switch (tok & MONO_METHODDEFORREF_MASK) {
5592 case MONO_METHODDEFORREF_METHODDEF:
5593 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
5594 case MONO_METHODDEFORREF_METHODREF:
5595 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
5597 g_assert_not_reached ();
5602 * mono_class_get_overrides_full:
5604 * Return the method overrides belonging to class @type_token in @overrides, and
5605 * the number of overrides in @num_overrides.
5607 * Returns: TRUE on success, FALSE on failure.
5610 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5611 MonoGenericContext *generic_context)
5615 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5618 guint32 cols [MONO_METHODIMPL_SIZE];
5619 MonoMethod **result;
5630 loc.col_idx = MONO_METHODIMPL_CLASS;
5631 loc.idx = mono_metadata_token_index (type_token);
5633 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5639 * We may end up in the middle of the rows...
5642 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5647 while (end < tdef->rows) {
5648 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5654 result = g_new (MonoMethod*, num * 2);
5655 for (i = 0; i < num; ++i) {
5658 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
5659 mono_error_cleanup (&error);
5664 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5665 method = method_from_method_def_or_ref (
5666 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
5669 result [i * 2] = method;
5670 method = method_from_method_def_or_ref (
5671 image, cols [MONO_METHODIMPL_BODY], generic_context);
5674 result [i * 2 + 1] = method;
5677 *overrides = result;
5679 *num_overrides = num;
5684 * mono_guid_to_string:
5686 * Converts a 16 byte Microsoft GUID to the standard string representation.
5689 mono_guid_to_string (const guint8 *guid)
5691 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5692 guid[3], guid[2], guid[1], guid[0],
5696 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
5700 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
5702 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
5703 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
5704 guint32 i, token, found;
5705 MonoClass *klass, **res;
5706 GSList *cons = NULL, *tmp;
5707 MonoGenericContext *context = &container->context;
5709 *constraints = NULL;
5711 for (i = 0; i < tdef->rows; ++i) {
5712 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
5713 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
5714 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
5715 klass = mono_class_get_full (image, token, context);
5717 g_slist_free (cons);
5720 cons = g_slist_append (cons, klass);
5723 /* contiguous list finished */
5730 res = mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
5731 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
5732 res [i] = tmp->data;
5734 g_slist_free (cons);
5740 * mono_metadata_get_generic_param_row:
5743 * @token: TypeOrMethodDef token, owner for GenericParam
5744 * @owner: coded token, set on return
5746 * Returns: 1-based row-id in the GenericParam table whose
5747 * owner is @token. 0 if not found.
5750 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
5752 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5759 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
5760 *owner = MONO_TYPEORMETHOD_TYPE;
5761 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5762 *owner = MONO_TYPEORMETHOD_METHOD;
5764 g_error ("wrong token %x to get_generic_param_row", token);
5767 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
5770 loc.col_idx = MONO_GENERICPARAM_OWNER;
5773 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5776 /* Find the first entry by searching backwards */
5777 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
5780 return loc.result + 1;
5784 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
5787 return mono_metadata_get_generic_param_row (image, token, &owner);
5791 * Memory is allocated from IMAGE's mempool.
5794 mono_metadata_load_generic_param_constraints_full (MonoImage *image, guint32 token,
5795 MonoGenericContainer *container)
5798 guint32 start_row, i, owner;
5799 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
5801 for (i = 0; i < container->type_argc; i++) {
5802 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container))
5809 * mono_metadata_load_generic_param_constraints:
5811 * @image: metadata context
5812 * @token: metadata token to load the contraints, can be methodef or typedef.
5813 * @container: generic container to load into.
5815 * Load the generic parameter constraints for the newly created generic type or method
5816 * represented by @token and @container. The @container is the new container which has
5817 * been returned by a call to mono_metadata_load_generic_params() with this @token.
5818 * Memory is allocated from IMAGE's mempool.
5821 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
5822 MonoGenericContainer *container)
5824 mono_metadata_load_generic_param_constraints_full (image, token, container);
5825 /*FIXME this function can potentially exit with a pending loader error and cause all sort of havok */
5829 * mono_metadata_load_generic_params:
5831 * Load the type parameters from the type or method definition @token.
5833 * Use this method after parsing a type or method definition to figure out whether it's a generic
5834 * type / method. When parsing a method definition, @parent_container points to the generic container
5835 * of the current class, if any.
5837 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
5838 * creating the type.
5840 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
5842 * LOCKING: Acquires the loader lock
5845 MonoGenericContainer *
5846 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
5848 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5849 guint32 cols [MONO_GENERICPARAM_SIZE];
5850 guint32 i, owner = 0, n;
5851 MonoGenericContainer *container;
5852 MonoGenericParamFull *params;
5853 MonoGenericContext *context;
5855 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
5857 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5860 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
5861 container->image = image;
5864 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
5865 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
5866 params [n - 1].param.owner = container;
5867 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
5868 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
5869 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
5870 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
5871 if (params [n - 1].param.num != n - 1)
5872 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
5873 if (++i > tdef->rows)
5875 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5876 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5878 container->type_argc = n;
5879 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
5880 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
5882 container->parent = parent_container;
5884 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5885 container->is_method = 1;
5887 g_assert (container->parent == NULL || container->is_method);
5889 context = &container->context;
5890 if (container->is_method) {
5891 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5892 context->method_inst = mono_get_shared_generic_inst (container);
5894 context->class_inst = mono_get_shared_generic_inst (container);
5901 mono_get_shared_generic_inst (MonoGenericContainer *container)
5903 MonoType **type_argv;
5905 MonoGenericInst *nginst;
5908 type_argv = g_new0 (MonoType *, container->type_argc);
5909 helper = g_new0 (MonoType, container->type_argc);
5911 for (i = 0; i < container->type_argc; i++) {
5912 MonoType *t = &helper [i];
5914 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5915 t->data.generic_param = mono_generic_container_get_param (container, i);
5920 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5929 * mono_type_is_byref:
5930 * @type: the MonoType operated on
5932 * Returns: #TRUE if @type represents a type passed by reference,
5936 mono_type_is_byref (MonoType *type)
5942 * mono_type_get_type:
5943 * @type: the MonoType operated on
5945 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
5946 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
5949 mono_type_get_type (MonoType *type)
5955 * mono_type_get_signature:
5956 * @type: the MonoType operated on
5958 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
5960 * Returns: the MonoMethodSignature pointer that describes the signature
5961 * of the function pointer @type represents.
5963 MonoMethodSignature*
5964 mono_type_get_signature (MonoType *type)
5966 g_assert (type->type == MONO_TYPE_FNPTR);
5967 return type->data.method;
5971 * mono_type_get_class:
5972 * @type: the MonoType operated on
5974 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
5975 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
5978 * Returns: the MonoClass pointer that describes the class that @type represents.
5981 mono_type_get_class (MonoType *type)
5983 /* FIXME: review the runtime users before adding the assert here */
5984 return type->data.klass;
5988 * mono_type_get_array_type:
5989 * @type: the MonoType operated on
5991 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
5993 * Returns: a MonoArrayType struct describing the array type that @type
5994 * represents. The info includes details such as rank, array element type
5995 * and the sizes and bounds of multidimensional arrays.
5998 mono_type_get_array_type (MonoType *type)
6000 return type->data.array;
6004 * mono_type_get_ptr_type:
6005 * @type: the MonoType operated on
6007 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6010 * Returns: the MonoType pointer that describes the type that @type
6011 * represents a pointer to.
6014 mono_type_get_ptr_type (MonoType *type)
6016 g_assert (type->type == MONO_TYPE_PTR);
6017 return type->data.type;
6021 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6023 /* FIXME: implement */
6028 * mono_type_is_struct:
6029 * @type: the MonoType operated on
6031 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6032 * or a basic type like System.Int32. #FALSE otherwise.
6035 mono_type_is_struct (MonoType *type)
6037 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6038 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6039 ((type->type == MONO_TYPE_GENERICINST) &&
6040 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6041 !type->data.generic_class->container_class->enumtype)));
6045 * mono_type_is_void:
6046 * @type: the MonoType operated on
6048 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6051 mono_type_is_void (MonoType *type)
6053 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6057 * mono_type_is_pointer:
6058 * @type: the MonoType operated on
6060 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6063 mono_type_is_pointer (MonoType *type)
6065 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6066 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6067 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6068 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6069 (type->type == MONO_TYPE_FNPTR)));
6073 * mono_type_is_reference:
6074 * @type: the MonoType operated on
6076 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6079 mono_type_is_reference (MonoType *type)
6081 return (type && (((type->type == MONO_TYPE_STRING) ||
6082 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6083 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6084 ((type->type == MONO_TYPE_GENERICINST) &&
6085 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6089 * mono_signature_get_return_type:
6090 * @sig: the method signature inspected
6092 * Returns: the return type of the method signature @sig
6095 mono_signature_get_return_type (MonoMethodSignature *sig)
6101 * mono_signature_get_params:
6102 * @sig: the method signature inspected
6103 * #iter: pointer to an iterator
6105 * Iterates over the parameters for the method signature @sig.
6106 * A void* pointer must be initualized to #NULL to start the iteration
6107 * and it's address is passed to this function repeteadly until it returns
6110 * Returns: the next parameter type of the method signature @sig,
6111 * #NULL when finished.
6114 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6120 /* start from the first */
6121 if (sig->param_count) {
6122 *iter = &sig->params [0];
6123 return sig->params [0];
6131 if (type < &sig->params [sig->param_count]) {
6139 * mono_signature_get_param_count:
6140 * @sig: the method signature inspected
6142 * Returns: the number of parameters in the method signature @sig.
6145 mono_signature_get_param_count (MonoMethodSignature *sig)
6147 return sig->param_count;
6151 * mono_signature_get_call_conv:
6152 * @sig: the method signature inspected
6154 * Returns: the call convention of the method signature @sig.
6157 mono_signature_get_call_conv (MonoMethodSignature *sig)
6159 return sig->call_convention;
6163 * mono_signature_vararg_start:
6164 * @sig: the method signature inspected
6166 * Returns: the number of the first vararg parameter in the
6167 * method signature @sig. -1 if this is not a vararg signature.
6170 mono_signature_vararg_start (MonoMethodSignature *sig)
6172 return sig->sentinelpos;
6176 * mono_signature_is_instance:
6177 * @sig: the method signature inspected
6179 * Returns: #TRUE if this the method signature @sig has an implicit
6180 * first instance argument. #FALSE otherwise.
6183 mono_signature_is_instance (MonoMethodSignature *sig)
6185 return sig->hasthis;
6189 * mono_signature_explicit_this:
6190 * @sig: the method signature inspected
6192 * Returns: #TRUE if this the method signature @sig has an explicit
6193 * instance argument. #FALSE otherwise.
6196 mono_signature_explicit_this (MonoMethodSignature *sig)
6198 return sig->explicit_this;
6201 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6203 mono_aligned_addr_hash (gconstpointer ptr)
6205 return GPOINTER_TO_UINT (ptr) >> 3;
6209 * If @field belongs to an inflated generic class, return the corresponding field of the
6210 * generic type definition class.
6213 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6218 if (!field->parent->generic_class)
6221 gtd = field->parent->generic_class->container_class;
6222 offset = field - field->parent->fields;
6223 return gtd->fields + offset;
6227 * If @event belongs to an inflated generic class, return the corresponding event of the
6228 * generic type definition class.
6231 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6236 if (!event->parent->generic_class)
6239 gtd = event->parent->generic_class->container_class;
6240 offset = event - event->parent->ext->events;
6241 return gtd->ext->events + offset;
6245 * If @property belongs to an inflated generic class, return the corresponding property of the
6246 * generic type definition class.
6249 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6254 if (!property->parent->generic_class)
6257 gtd = property->parent->generic_class->container_class;
6258 offset = property - property->parent->ext->properties;
6259 return gtd->ext->properties + offset;