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)
18 #include "tabledefs.h"
19 #include "mono-endian.h"
21 #include "tokentype.h"
22 #include "class-internals.h"
23 #include "metadata-internals.h"
24 #include "verify-internals.h"
27 #include "debug-helpers.h"
28 #include "abi-details.h"
29 #include <mono/utils/mono-error-internals.h>
30 #include <mono/utils/bsearch.h>
31 #include <mono/utils/atomic.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, MonoError *error);
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 DOCUMENT_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
373 MONO_MT_BLOB_IDX, /* Name */
374 MONO_MT_GUID_IDX, /* HashAlgorithm */
375 MONO_MT_BLOB_IDX, /* Hash */
376 MONO_MT_GUID_IDX, /* Language */
379 #define METHODBODY_SCHEMA_OFFSET DOCUMENT_SCHEMA_OFFSET + 5
380 MONO_MT_TABLE_IDX, /* Document */
381 MONO_MT_BLOB_IDX, /* SequencePoints */
384 #define LOCALSCOPE_SCHEMA_OFFSET METHODBODY_SCHEMA_OFFSET + 3
385 MONO_MT_TABLE_IDX, /* Method */
386 MONO_MT_TABLE_IDX, /* ImportScope */
387 MONO_MT_TABLE_IDX, /* VariableList */
388 MONO_MT_TABLE_IDX, /* ConstantList */
389 MONO_MT_UINT32, /* StartOffset */
390 MONO_MT_UINT32, /* Length */
393 #define LOCALVARIABLE_SCHEMA_OFFSET LOCALSCOPE_SCHEMA_OFFSET + 7
394 MONO_MT_UINT16, /* Attributes */
395 MONO_MT_UINT16, /* Index */
396 MONO_MT_STRING_IDX, /* Name */
399 #define NULL_SCHEMA_OFFSET LOCALVARIABLE_SCHEMA_OFFSET + 4
403 /* Must be the same order as MONO_TABLE_* */
404 const static unsigned char
405 table_description [] = {
406 MODULE_SCHEMA_OFFSET,
407 TYPEREF_SCHEMA_OFFSET,
408 TYPEDEF_SCHEMA_OFFSET,
409 FIELD_POINTER_SCHEMA_OFFSET,
411 METHOD_POINTER_SCHEMA_OFFSET,
412 METHOD_SCHEMA_OFFSET,
413 PARAM_POINTER_SCHEMA_OFFSET,
415 IFACEMAP_SCHEMA_OFFSET,
416 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
417 CONSTANT_SCHEMA_OFFSET,
418 CUSTOM_ATTR_SCHEMA_OFFSET,
419 FIELD_MARSHAL_SCHEMA_OFFSET,
420 DECL_SEC_SCHEMA_OFFSET,
421 CLASS_LAYOUT_SCHEMA_OFFSET,
422 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
423 STDALON_SIG_SCHEMA_OFFSET,
424 EVENTMAP_SCHEMA_OFFSET,
425 EVENT_POINTER_SCHEMA_OFFSET,
427 PROPERTY_MAP_SCHEMA_OFFSET,
428 PROPERTY_POINTER_SCHEMA_OFFSET,
429 PROPERTY_SCHEMA_OFFSET,
430 METHOD_SEMA_SCHEMA_OFFSET,
431 METHOD_IMPL_SCHEMA_OFFSET,
432 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
433 TYPESPEC_SCHEMA_OFFSET,
434 IMPLMAP_SCHEMA_OFFSET,
435 FIELD_RVA_SCHEMA_OFFSET,
438 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
439 ASSEMBLYPROC_SCHEMA_OFFSET,
440 ASSEMBLYOS_SCHEMA_OFFSET,
441 ASSEMBLYREF_SCHEMA_OFFSET,
442 ASSEMBLYREFPROC_SCHEMA_OFFSET,
443 ASSEMBLYREFOS_SCHEMA_OFFSET,
445 EXPORTED_TYPE_SCHEMA_OFFSET,
446 MANIFEST_SCHEMA_OFFSET,
447 NESTED_CLASS_SCHEMA_OFFSET,
448 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
449 METHOD_SPEC_SCHEMA_OFFSET,
450 GEN_CONSTRAINT_SCHEMA_OFFSET,
454 DOCUMENT_SCHEMA_OFFSET, /* 0x30 */
455 METHODBODY_SCHEMA_OFFSET,
456 LOCALSCOPE_SCHEMA_OFFSET,
457 LOCALVARIABLE_SCHEMA_OFFSET
460 #ifdef HAVE_ARRAY_ELEM_INIT
461 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
462 #define MSGSTRFIELD1(line) str##line
463 static const struct msgstr_t {
464 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
465 #include "mono/cil/tables.def"
468 #define TABLEDEF(a,b) b,
469 #include "mono/cil/tables.def"
472 static const gint16 tableidx [] = {
473 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
474 #include "mono/cil/tables.def"
479 #define TABLEDEF(a,b) b,
480 static const char* const
481 mono_tables_names [] = {
482 #include "mono/cil/tables.def"
488 // Amount initially reserved in each imageset's mempool.
489 // FIXME: This number is arbitrary, a more practical number should be found
490 #define INITIAL_IMAGE_SET_SIZE 1024
493 * mono_meta_table_name:
494 * @table: table index
496 * Returns the name of the given ECMA metadata logical format table
497 * as described in ECMA 335, Partition II, Section 22.
499 * Returns: the name for the @table index
502 mono_meta_table_name (int table)
504 if ((table < 0) || (table > MONO_TABLE_LAST))
507 #ifdef HAVE_ARRAY_ELEM_INIT
508 return (const char*)&tablestr + tableidx [table];
510 return mono_tables_names [table];
514 /* The guy who wrote the spec for this should not be allowed near a
517 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
518 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
519 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
520 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
521 inverse of this mapping.
524 #define rtsize(meta,s,b) (((s) < (1 << (b)) ? 2 : 4))
525 #define idx_size(meta,tableidx) ((meta)->tables [(tableidx)].rows < 65536 ? 2 : 4)
527 /* Reference: Partition II - 23.2.6 */
529 * mono_metadata_compute_size:
530 * @meta: metadata context
531 * @tableindex: metadata table number
532 * @result_bitfield: pointer to guint32 where to store additional info
534 * mono_metadata_compute_size() computes the lenght in bytes of a single
535 * row in a metadata table. The size of each column is encoded in the
536 * @result_bitfield return value along with the number of columns in the table.
537 * the resulting bitfield should be handed to the mono_metadata_table_size()
538 * and mono_metadata_table_count() macros.
539 * This is a Mono runtime internal only function.
542 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
544 guint32 bitfield = 0;
545 int size = 0, field_size = 0;
548 const unsigned char *description = TableSchemas + table_description [tableindex];
550 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
553 field_size = 4; break;
556 field_size = 2; break;
559 field_size = 1; break;
561 case MONO_MT_BLOB_IDX:
562 field_size = meta->idx_blob_wide ? 4 : 2; break;
564 case MONO_MT_STRING_IDX:
565 field_size = meta->idx_string_wide ? 4 : 2; break;
567 case MONO_MT_GUID_IDX:
568 field_size = meta->idx_guid_wide ? 4 : 2; break;
570 case MONO_MT_TABLE_IDX:
571 /* Uhm, a table index can point to other tables besides the current one
572 * so, it's not correct to use the rowcount of the current table to
573 * get the size for this column - lupus
575 switch (tableindex) {
576 case MONO_TABLE_ASSEMBLYREFOS:
578 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
579 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
581 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
582 case MONO_TABLE_CLASSLAYOUT:
584 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
585 case MONO_TABLE_EVENTMAP:
586 g_assert (i == 0 || i == 1);
587 field_size = i ? idx_size (meta, MONO_TABLE_EVENT):
588 idx_size (meta, MONO_TABLE_TYPEDEF);
590 case MONO_TABLE_EVENT_POINTER:
592 field_size = idx_size (meta, MONO_TABLE_EVENT); break;
593 case MONO_TABLE_EXPORTEDTYPE:
595 /* the index is in another metadata file, so it must be 4 */
596 field_size = 4; break;
597 case MONO_TABLE_FIELDLAYOUT:
599 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
600 case MONO_TABLE_FIELDRVA:
602 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
603 case MONO_TABLE_FIELD_POINTER:
605 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
606 case MONO_TABLE_IMPLMAP:
608 field_size = idx_size (meta, MONO_TABLE_MODULEREF); break;
609 case MONO_TABLE_INTERFACEIMPL:
611 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
612 case MONO_TABLE_METHOD:
614 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
615 case MONO_TABLE_METHODIMPL:
617 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
618 case MONO_TABLE_METHODSEMANTICS:
620 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
621 case MONO_TABLE_METHOD_POINTER:
623 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
624 case MONO_TABLE_NESTEDCLASS:
625 g_assert (i == 0 || i == 1);
626 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
627 case MONO_TABLE_PARAM_POINTER:
629 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
630 case MONO_TABLE_PROPERTYMAP:
631 g_assert (i == 0 || i == 1);
632 field_size = i ? idx_size (meta, MONO_TABLE_PROPERTY):
633 idx_size (meta, MONO_TABLE_TYPEDEF);
635 case MONO_TABLE_PROPERTY_POINTER:
637 field_size = idx_size (meta, MONO_TABLE_PROPERTY); break;
638 case MONO_TABLE_TYPEDEF:
639 g_assert (i == 4 || i == 5);
640 field_size = i == 4 ? idx_size (meta, MONO_TABLE_FIELD):
641 idx_size (meta, MONO_TABLE_METHOD);
643 case MONO_TABLE_GENERICPARAM:
645 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
646 /*This is a coded token for 2 tables, so takes 1 bit */
647 field_size = rtsize (meta, n, 16 - MONO_TYPEORMETHOD_BITS);
649 case MONO_TABLE_GENERICPARAMCONSTRAINT:
651 field_size = idx_size (meta, MONO_TABLE_GENERICPARAM);
653 case MONO_TABLE_LOCALSCOPE:
656 // FIXME: This table is in another file
657 field_size = idx_size (meta, MONO_TABLE_METHOD);
660 field_size = idx_size (meta, MONO_TABLE_IMPORTSCOPE);
663 field_size = idx_size (meta, MONO_TABLE_LOCALVARIABLE);
666 field_size = idx_size (meta, MONO_TABLE_LOCALCONSTANT);
669 g_assert_not_reached ();
673 case MONO_TABLE_METHODBODY:
675 field_size = idx_size (meta, MONO_TABLE_DOCUMENT);
678 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
683 * HasConstant: ParamDef, FieldDef, Property
685 case MONO_MT_CONST_IDX:
686 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
687 meta->tables [MONO_TABLE_FIELD].rows);
688 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
690 /* 2 bits to encode tag */
691 field_size = rtsize (meta, n, 16-2);
695 * HasCustomAttribute: points to any table but
698 case MONO_MT_HASCAT_IDX:
700 * We believe that since the signature and
701 * permission are indexing the Blob heap,
702 * we should consider the blob size first
704 /* I'm not a believer - lupus
705 if (meta->idx_blob_wide){
710 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
711 meta->tables [MONO_TABLE_FIELD].rows);
712 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
713 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
714 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
715 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
716 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
717 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
718 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
719 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
720 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
721 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
722 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
723 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
724 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
725 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
726 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
727 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
728 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
730 /* 5 bits to encode */
731 field_size = rtsize (meta, n, 16-5);
735 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
736 * MemberRef and String.
738 case MONO_MT_CAT_IDX:
739 /* String is a heap, if it is wide, we know the size */
741 if (meta->idx_string_wide){
746 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
747 meta->tables [MONO_TABLE_TYPEDEF].rows);
748 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
749 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
751 /* 3 bits to encode */
752 field_size = rtsize (meta, n, 16-3);
756 * HasDeclSecurity: Typedef, MethodDef, Assembly
758 case MONO_MT_HASDEC_IDX:
759 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
760 meta->tables [MONO_TABLE_METHOD].rows);
761 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
763 /* 2 bits to encode */
764 field_size = rtsize (meta, n, 16-2);
768 * Implementation: File, AssemblyRef, ExportedType
770 case MONO_MT_IMPL_IDX:
771 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
772 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
773 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
775 /* 2 bits to encode tag */
776 field_size = rtsize (meta, n, 16-2);
780 * HasFieldMarshall: FieldDef, ParamDef
782 case MONO_MT_HFM_IDX:
783 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
784 meta->tables [MONO_TABLE_PARAM].rows);
786 /* 1 bit used to encode tag */
787 field_size = rtsize (meta, n, 16-1);
791 * MemberForwarded: FieldDef, MethodDef
794 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
795 meta->tables [MONO_TABLE_METHOD].rows);
797 /* 1 bit used to encode tag */
798 field_size = rtsize (meta, n, 16-1);
802 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
804 * It is TypeDef, _TypeRef_, TypeSpec, instead.
806 case MONO_MT_TDOR_IDX:
807 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
808 meta->tables [MONO_TABLE_TYPEREF].rows);
809 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
811 /* 2 bits to encode */
812 field_size = rtsize (meta, n, 16-2);
816 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
818 case MONO_MT_MRP_IDX:
819 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
820 meta->tables [MONO_TABLE_TYPEREF].rows);
821 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
822 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
823 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
825 /* 3 bits to encode */
826 field_size = rtsize (meta, n, 16 - 3);
830 * MethodDefOrRef: MethodDef, MemberRef
832 case MONO_MT_MDOR_IDX:
833 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
834 meta->tables [MONO_TABLE_MEMBERREF].rows);
836 /* 1 bit used to encode tag */
837 field_size = rtsize (meta, n, 16-1);
841 * HasSemantics: Property, Event
844 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
845 meta->tables [MONO_TABLE_EVENT].rows);
847 /* 1 bit used to encode tag */
848 field_size = rtsize (meta, n, 16-1);
852 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
855 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
856 meta->tables [MONO_TABLE_MODULEREF].rows);
857 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
858 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
860 /* 2 bits used to encode tag (ECMA spec claims 3) */
861 field_size = rtsize (meta, n, 16 - 2);
866 * encode field size as follows (we just need to
873 bitfield |= (field_size-1) << shift;
876 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
879 *result_bitfield = (i << 24) | bitfield;
884 * mono_metadata_compute_table_bases:
885 * @meta: metadata context to compute table values
887 * Computes the table bases for the metadata structure.
888 * This is an internal function used by the image loader code.
891 mono_metadata_compute_table_bases (MonoImage *meta)
894 const char *base = meta->tables_base;
896 for (i = 0; i < MONO_TABLE_NUM; i++) {
897 MonoTableInfo *table = &meta->tables [i];
898 if (table->rows == 0)
901 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
903 base += table->rows * table->row_size;
908 * mono_metadata_locate:
909 * @meta: metadata context
910 * @table: table code.
911 * @idx: index of element to retrieve from @table.
913 * Returns: a pointer to the @idx element in the metadata table
914 * whose code is @table.
917 mono_metadata_locate (MonoImage *meta, int table, int idx)
919 /* idx == 0 refers always to NULL */
920 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
922 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
926 * mono_metadata_locate_token:
927 * @meta: metadata context
928 * @token: metadata token
930 * Returns: a pointer to the data in the metadata represented by the
934 mono_metadata_locate_token (MonoImage *meta, guint32 token)
936 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
940 * mono_metadata_string_heap:
941 * @meta: metadata context
942 * @index: index into the string heap.
944 * Returns: an in-memory pointer to the @index in the string heap.
947 mono_metadata_string_heap (MonoImage *meta, guint32 index)
949 g_assert (index < meta->heap_strings.size);
950 g_return_val_if_fail (index < meta->heap_strings.size, "");
951 return meta->heap_strings.data + index;
955 * mono_metadata_user_string:
956 * @meta: metadata context
957 * @index: index into the user string heap.
959 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
962 mono_metadata_user_string (MonoImage *meta, guint32 index)
964 g_assert (index < meta->heap_us.size);
965 g_return_val_if_fail (index < meta->heap_us.size, "");
966 return meta->heap_us.data + index;
970 * mono_metadata_blob_heap:
971 * @meta: metadata context
972 * @index: index into the blob.
974 * Returns: an in-memory pointer to the @index in the Blob heap.
977 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
979 g_assert (index < meta->heap_blob.size);
980 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
981 return meta->heap_blob.data + index;
985 * mono_metadata_guid_heap:
986 * @meta: metadata context
987 * @index: index into the guid heap.
989 * Returns: an in-memory pointer to the @index in the guid heap.
992 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
995 index *= 16; /* adjust for guid size and 1-based index */
996 g_return_val_if_fail (index < meta->heap_guid.size, "");
997 return meta->heap_guid.data + index;
1000 static const unsigned char *
1001 dword_align (const unsigned char *ptr)
1003 #if SIZEOF_VOID_P == 8
1004 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
1006 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
1011 * mono_metadata_decode_row:
1012 * @t: table to extract information from.
1013 * @idx: index in table.
1014 * @res: array of @res_size cols to store the results in
1016 * This decompresses the metadata element @idx in table @t
1017 * into the guint32 @res array that has res_size elements
1020 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
1022 guint32 bitfield = t->size_bitfield;
1023 int i, count = mono_metadata_table_count (bitfield);
1026 g_assert (idx < t->rows);
1027 g_assert (idx >= 0);
1028 data = t->base + idx * t->row_size;
1030 g_assert (res_size == count);
1032 for (i = 0; i < count; i++) {
1033 int n = mono_metadata_table_size (bitfield, i);
1037 res [i] = *data; break;
1039 res [i] = read16 (data); break;
1041 res [i] = read32 (data); break;
1043 g_assert_not_reached ();
1050 * mono_metadata_decode_row_col:
1051 * @t: table to extract information from.
1052 * @idx: index for row in table.
1053 * @col: column in the row.
1055 * This function returns the value of column @col from the @idx
1056 * row in the table @t.
1059 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
1061 guint32 bitfield = t->size_bitfield;
1063 register const char *data;
1066 g_assert (idx < t->rows);
1067 g_assert (col < mono_metadata_table_count (bitfield));
1068 data = t->base + idx * t->row_size;
1070 n = mono_metadata_table_size (bitfield, 0);
1071 for (i = 0; i < col; ++i) {
1073 n = mono_metadata_table_size (bitfield, i + 1);
1079 return read16 (data);
1081 return read32 (data);
1083 g_assert_not_reached ();
1089 * mono_metadata_decode_blob_size:
1090 * @ptr: pointer to a blob object
1091 * @rptr: the new position of the pointer
1093 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1095 * Returns: the size of the blob object
1098 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1100 const unsigned char *ptr = (const unsigned char *)xptr;
1103 if ((*ptr & 0x80) == 0){
1104 size = ptr [0] & 0x7f;
1106 } else if ((*ptr & 0x40) == 0){
1107 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1110 size = ((ptr [0] & 0x1f) << 24) +
1122 * mono_metadata_decode_value:
1123 * @ptr: pointer to decode from
1124 * @rptr: the new position of the pointer
1126 * This routine decompresses 32-bit values as specified in the "Blob and
1127 * Signature" section (22.2)
1129 * Returns: the decoded value
1132 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1134 const unsigned char *ptr = (const unsigned char *) _ptr;
1135 unsigned char b = *ptr;
1138 if ((b & 0x80) == 0){
1141 } else if ((b & 0x40) == 0){
1142 len = ((b & 0x3f) << 8 | ptr [1]);
1145 len = ((b & 0x1f) << 24) |
1158 * mono_metadata_decode_signed_value:
1159 * @ptr: pointer to decode from
1160 * @rptr: the new position of the pointer
1162 * This routine decompresses 32-bit signed values
1163 * (not specified in the spec)
1165 * Returns: the decoded value
1168 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1170 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1171 gint32 ival = uval >> 1;
1174 /* ival is a truncated 2's complement negative number. */
1176 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1179 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1180 return ival - 0x2000;
1181 if (ival < 0x10000000)
1182 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1183 return ival - 0x10000000;
1184 g_assert (ival < 0x20000000);
1185 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1186 return ival - 0x20000000;
1190 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1191 * using the *Ptr tables in uncompressed metadata, if they are available.
1193 * FIXME: The caller is not forced to call this function, which is error-prone, since
1194 * forgetting to call it would only show up as a bug on uncompressed metadata.
1197 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1199 if (!image->uncompressed_metadata)
1203 case MONO_TABLE_METHOD:
1204 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1205 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1208 case MONO_TABLE_FIELD:
1209 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1210 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1213 case MONO_TABLE_EVENT:
1214 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1215 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1218 case MONO_TABLE_PROPERTY:
1219 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1220 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1223 case MONO_TABLE_PARAM:
1224 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1225 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1234 * mono_metadata_decode_table_row:
1236 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1237 * uncompressed metadata into account, so it should be used to access the
1238 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1239 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1242 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1244 if (image->uncompressed_metadata)
1245 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1247 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1251 * mono_metadata_decode_table_row_col:
1253 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1254 * uncompressed metadata into account, so it should be used to access the
1255 * Method, Field, Param and Event tables.
1257 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1259 if (image->uncompressed_metadata)
1260 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1262 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1266 * mono_metadata_parse_typedef_or_ref:
1267 * @m: a metadata context.
1268 * @ptr: a pointer to an encoded TypedefOrRef in @m
1269 * @rptr: pointer updated to match the end of the decoded stream
1271 * Returns: a token valid in the @m metadata decoded from
1272 * the compressed representation.
1275 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1278 token = mono_metadata_decode_value (ptr, &ptr);
1281 return mono_metadata_token_from_dor (token);
1285 * mono_metadata_parse_custom_mod:
1286 * @m: a metadata context.
1287 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1288 * @ptr: a pointer to (possibly) the start of a custom modifier list
1289 * @rptr: pointer updated to match the end of the decoded stream
1291 * Checks if @ptr points to a type custom modifier compressed representation.
1293 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1296 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1298 MonoCustomMod local;
1299 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1302 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1303 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1310 * mono_metadata_parse_array_internal:
1311 * @m: a metadata context.
1312 * @transient: whenever to allocate data from the heap
1313 * @ptr: a pointer to an encoded array description.
1314 * @rptr: pointer updated to match the end of the decoded stream
1316 * Decodes the compressed array description found in the metadata @m at @ptr.
1318 * Returns: a #MonoArrayType structure describing the array type
1319 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1320 * on the value of @transient.
1322 * LOCKING: Acquires the loader lock
1324 static MonoArrayType *
1325 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1326 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1329 MonoArrayType *array;
1332 etype = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error); //FIXME this doesn't respect @transient
1336 array = transient ? (MonoArrayType *)g_malloc0 (sizeof (MonoArrayType)) : (MonoArrayType *)mono_image_alloc0 (m, sizeof (MonoArrayType));
1337 array->eklass = mono_class_from_mono_type (etype);
1338 array->rank = mono_metadata_decode_value (ptr, &ptr);
1340 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1341 if (array->numsizes)
1342 array->sizes = transient ? (int *)g_malloc0 (sizeof (int) * array->numsizes) : (int *)mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1343 for (i = 0; i < array->numsizes; ++i)
1344 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1346 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1347 if (array->numlobounds)
1348 array->lobounds = transient ? (int *)g_malloc0 (sizeof (int) * array->numlobounds) : (int *)mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1349 for (i = 0; i < array->numlobounds; ++i)
1350 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1358 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1361 MonoArrayType *ret = mono_metadata_parse_array_internal (m, NULL, FALSE, ptr, rptr, &error);
1363 mono_loader_set_error_from_mono_error (&error);
1364 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1370 * mono_metadata_free_array:
1371 * @array: array description
1373 * Frees the array description returned from mono_metadata_parse_array().
1376 mono_metadata_free_array (MonoArrayType *array)
1378 g_free (array->sizes);
1379 g_free (array->lobounds);
1384 * need to add common field and param attributes combinations:
1387 * public static literal
1390 * private static literal
1392 static const MonoType
1394 /* data, attrs, type, nmods, byref, pinned */
1395 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1396 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1397 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1398 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1399 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1400 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1401 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1402 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1403 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1404 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1405 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1406 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1407 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1408 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1409 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1410 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1411 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1412 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1413 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1414 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1415 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1416 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1417 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1418 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1419 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1420 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1421 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1422 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1423 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1424 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1425 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1426 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1427 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1428 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1431 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1433 static GHashTable *type_cache = NULL;
1434 static int next_generic_inst_id = 0;
1436 /* Protected by image_sets_mutex */
1437 static MonoImageSet *mscorlib_image_set;
1438 /* Protected by image_sets_mutex */
1439 static GPtrArray *image_sets;
1440 static mono_mutex_t image_sets_mutex;
1442 static guint mono_generic_class_hash (gconstpointer data);
1445 * MonoTypes with modifies are never cached, so we never check or use that field.
1448 mono_type_hash (gconstpointer data)
1450 const MonoType *type = (const MonoType *) data;
1451 if (type->type == MONO_TYPE_GENERICINST)
1452 return mono_generic_class_hash (type->data.generic_class);
1454 return type->type | (type->byref << 8) | (type->attrs << 9);
1458 mono_type_equal (gconstpointer ka, gconstpointer kb)
1460 const MonoType *a = (const MonoType *) ka;
1461 const MonoType *b = (const MonoType *) kb;
1463 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1465 /* need other checks */
1470 mono_metadata_generic_inst_hash (gconstpointer data)
1472 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1476 for (i = 0; i < ginst->type_argc; ++i) {
1478 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1481 return hash ^ (ginst->is_open << 8);
1485 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1489 // An optimization: if the ids of two insts are the same, we know they are the same inst and don't check contents.
1490 // Furthermore, because we perform early de-duping, if the ids differ, we know the contents differ.
1491 #ifndef MONO_SMALL_CONFIG // Optimization does not work in MONO_SMALL_CONFIG: There are no IDs
1492 if (a->id && b->id) { // "id 0" means "object has no id"-- de-duping hasn't been performed yet, must check contents.
1495 // In signature-comparison mode id equality implies object equality, but this is not true for inequality.
1496 // Two separate objects could have signature-equavalent contents.
1497 if (!signature_only)
1502 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1504 for (i = 0; i < a->type_argc; ++i) {
1505 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1512 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1514 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1515 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1517 return mono_generic_inst_equal_full (a, b, FALSE);
1521 mono_generic_class_hash (gconstpointer data)
1523 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1524 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1527 hash += gclass->is_tb_open;
1528 hash += mono_metadata_generic_context_hash (&gclass->context);
1534 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1536 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1537 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1539 return _mono_metadata_generic_class_equal (a, b, FALSE);
1543 * mono_metadata_init:
1545 * Initialize the global variables of this module.
1546 * This is a Mono runtime internal function.
1549 mono_metadata_init (void)
1553 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1555 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1556 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1558 mono_os_mutex_init_recursive (&image_sets_mutex);
1562 * mono_metadata_cleanup:
1564 * Free all resources used by this module.
1565 * This is a Mono runtime internal function.
1568 mono_metadata_cleanup (void)
1570 g_hash_table_destroy (type_cache);
1572 g_ptr_array_free (image_sets, TRUE);
1574 mono_os_mutex_destroy (&image_sets_mutex);
1578 * mono_metadata_parse_type:
1579 * @m: metadata context
1580 * @mode: king of type that may be found at @ptr
1581 * @opt_attrs: optional attributes to store in the returned type
1582 * @ptr: pointer to the type representation
1583 * @rptr: pointer updated to match the end of the decoded stream
1584 * @transient: whenever to allocate the result from the heap or from a mempool
1586 * Decode a compressed type description found at @ptr in @m.
1587 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1588 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1589 * This function can be used to decode type descriptions in method signatures,
1590 * field signatures, locals signatures etc.
1592 * To parse a generic type, `generic_container' points to the current class'es
1593 * (the `generic_container' field in the MonoClass) or the current generic method's
1594 * (stored in image->property_hash) generic container.
1595 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1596 * this MonoGenericContainer.
1598 * LOCKING: Acquires the loader lock.
1600 * Returns: a #MonoType structure representing the decoded type.
1603 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container,
1604 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1606 MonoType *type, *cached;
1608 gboolean byref = FALSE;
1609 gboolean pinned = FALSE;
1610 const char *tmp_ptr;
1611 int count = 0; // Number of mod arguments
1614 mono_error_init (error);
1617 * According to the spec, custom modifiers should come before the byref
1618 * flag, but the IL produced by ilasm from the following signature:
1619 * object modopt(...) &
1620 * starts with a byref flag, followed by the modifiers. (bug #49802)
1621 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1622 * it would be better to treat byref as real type constructor instead of
1624 * Also, pinned should come before anything else, but some MSV++ produced
1625 * assemblies violate this (#bug 61990).
1628 /* Count the modifiers first */
1633 case MONO_TYPE_PINNED:
1634 case MONO_TYPE_BYREF:
1637 case MONO_TYPE_CMOD_REQD:
1638 case MONO_TYPE_CMOD_OPT:
1640 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1647 if (count) { // There are mods, so the MonoType will be of nonstandard size.
1650 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1651 type = transient ? (MonoType *)g_malloc0 (size) : (MonoType *)mono_image_alloc0 (m, size);
1652 type->num_mods = count;
1654 mono_error_set_bad_image (error, m, "Invalid type with more than 64 modifiers");
1657 } else { // The type is of standard size, so we can allocate it on the stack.
1659 memset (type, 0, MONO_SIZEOF_TYPE);
1662 /* Iterate again, but now parse pinned, byref and custom modifiers */
1667 case MONO_TYPE_PINNED:
1671 case MONO_TYPE_BYREF:
1675 case MONO_TYPE_CMOD_REQD:
1676 case MONO_TYPE_CMOD_OPT:
1677 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1685 type->attrs = opt_attrs;
1686 type->byref = byref;
1687 type->pinned = pinned ? 1 : 0;
1689 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr, error))
1695 // Possibly we can return an already-allocated type instead of the one we decoded
1696 if (!type->num_mods && !transient) {
1697 /* no need to free type here, because it is on the stack */
1698 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1699 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1701 /* Consider the case:
1703 class Foo<T> { class Bar {} }
1704 class Test : Foo<Test>.Bar {}
1706 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1707 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1709 We ensure that the MonoClass is in a state that we can canonicalize to:
1711 klass->byval_arg.data.klass == klass
1712 klass->this_arg.data.klass == klass
1714 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1716 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1717 of a MonoClass which currently holds the loader lock. 'type' is local.
1719 if (ret->data.klass == type->data.klass) {
1723 /* No need to use locking since nobody is modifying the hash table */
1724 if ((cached = (MonoType *)g_hash_table_lookup (type_cache, type))) {
1729 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1731 if (type == &stype) { // Type was allocated on the stack, so we need to copy it to safety
1732 type = transient ? (MonoType *)g_malloc (MONO_SIZEOF_TYPE) : (MonoType *)mono_image_alloc (m, MONO_SIZEOF_TYPE);
1733 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1740 mono_metadata_parse_type_checked (MonoImage *m, MonoGenericContainer *container,
1741 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1743 return mono_metadata_parse_type_internal (m, container, opt_attrs, transient, ptr, rptr, error);
1748 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container,
1749 short opt_attrs, const char *ptr, const char **rptr)
1752 MonoType * type = mono_metadata_parse_type_internal (m, container, opt_attrs, FALSE, ptr, rptr, &error);
1753 mono_loader_assert_no_error ();
1754 if (!mono_error_ok (&error)) {
1755 mono_loader_set_error_from_mono_error (&error);
1756 mono_error_cleanup (&error);
1763 * LOCKING: Acquires the loader lock.
1766 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1767 const char *ptr, const char **rptr)
1769 return mono_metadata_parse_type_full (m, NULL, opt_attrs, ptr, rptr);
1773 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1775 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1776 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1777 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1779 if (def < methodt->rows)
1780 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1782 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1784 for (i = param_index; i < lastp; ++i) {
1785 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1794 * mono_metadata_get_param_attrs:
1796 * @m The image to loader parameter attributes from
1797 * @def method def token (one based)
1798 * @param_count number of params to decode including the return value
1800 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1801 * returned memory needs to be freed by the caller. If all the param attributes are
1802 * 0, then NULL is returned.
1805 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1807 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1808 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1809 guint32 cols [MONO_PARAM_SIZE];
1810 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1813 if (def < methodt->rows)
1814 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1816 lastp = paramt->rows + 1;
1818 for (i = param_index; i < lastp; ++i) {
1819 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1820 if (cols [MONO_PARAM_FLAGS]) {
1822 pattrs = g_new0 (int, param_count);
1823 /* at runtime we just ignore this kind of malformed file:
1824 * the verifier can signal the error to the user
1826 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1828 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1837 * mono_metadata_parse_signature:
1838 * @image: metadata context
1839 * @toke: metadata token
1841 * Decode a method signature stored in the STANDALONESIG table
1843 * Returns: a MonoMethodSignature describing the signature.
1845 MonoMethodSignature*
1846 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1849 MonoMethodSignature *ret;
1850 MonoTableInfo *tables = image->tables;
1851 guint32 idx = mono_metadata_token_index (token);
1855 if (image_is_dynamic (image))
1856 return (MonoMethodSignature *)mono_lookup_dynamic_token (image, token, NULL);
1858 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1860 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1862 ptr = mono_metadata_blob_heap (image, sig);
1863 mono_metadata_decode_blob_size (ptr, &ptr);
1865 ret = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, &error);
1866 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1871 * mono_metadata_signature_alloc:
1872 * @image: metadata context
1873 * @nparmas: number of parameters in the signature
1875 * Allocate a MonoMethodSignature structure with the specified number of params.
1876 * The return type and the params types need to be filled later.
1877 * This is a Mono runtime internal function.
1879 * LOCKING: Assumes the loader lock is held.
1881 * Returns: the new MonoMethodSignature structure.
1883 MonoMethodSignature*
1884 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1886 MonoMethodSignature *sig;
1888 sig = (MonoMethodSignature *)mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1889 sig->param_count = nparams;
1890 sig->sentinelpos = -1;
1895 static MonoMethodSignature*
1896 mono_metadata_signature_dup_internal_with_padding (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig, size_t padding)
1898 int sigsize, sig_header_size;
1899 MonoMethodSignature *ret;
1900 sigsize = sig_header_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *) + padding;
1902 sigsize += MONO_SIZEOF_TYPE;
1905 ret = (MonoMethodSignature *)mono_image_alloc (image, sigsize);
1907 ret = (MonoMethodSignature *)mono_mempool_alloc (mp, sigsize);
1909 ret = (MonoMethodSignature *)g_malloc (sigsize);
1912 memcpy (ret, sig, sig_header_size - padding);
1914 // Copy return value because of ownership semantics.
1916 // Danger! Do not alter padding use without changing the dup_add_this below
1917 intptr_t end_of_header = (intptr_t)( (char*)(ret) + sig_header_size);
1918 ret->ret = (MonoType *)end_of_header;
1919 memcpy (ret->ret, sig->ret, MONO_SIZEOF_TYPE);
1925 static MonoMethodSignature*
1926 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1928 return mono_metadata_signature_dup_internal_with_padding (image, mp, sig, 0);
1931 * signature_dup_add_this:
1933 * Make a copy of @sig, adding an explicit this argument.
1935 MonoMethodSignature*
1936 mono_metadata_signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
1938 MonoMethodSignature *ret;
1939 ret = mono_metadata_signature_dup_internal_with_padding (image, NULL, sig, sizeof (MonoType *));
1941 ret->param_count = sig->param_count + 1;
1942 ret->hasthis = FALSE;
1944 for (int i = sig->param_count - 1; i >= 0; i --)
1945 ret->params [i + 1] = sig->params [i];
1946 ret->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
1948 for (int i = sig->param_count - 1; i >= 0; i --)
1949 g_assert(ret->params [i + 1]->type == sig->params [i]->type && ret->params [i+1]->type != MONO_TYPE_END);
1950 g_assert (ret->ret->type == sig->ret->type && ret->ret->type != MONO_TYPE_END);
1957 MonoMethodSignature*
1958 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1960 MonoMethodSignature *ret = mono_metadata_signature_dup_internal (image, NULL, sig);
1962 for (int i = 0 ; i < sig->param_count; i ++)
1963 g_assert(ret->params [i]->type == sig->params [i]->type);
1964 g_assert (ret->ret->type == sig->ret->type);
1969 /*The mempool is accessed without synchronization*/
1970 MonoMethodSignature*
1971 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1973 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1977 * mono_metadata_signature_dup:
1978 * @sig: method signature
1980 * Duplicate an existing MonoMethodSignature so it can be modified.
1981 * This is a Mono runtime internal function.
1983 * Returns: the new MonoMethodSignature structure.
1985 MonoMethodSignature*
1986 mono_metadata_signature_dup (MonoMethodSignature *sig)
1988 return mono_metadata_signature_dup_full (NULL, sig);
1992 * mono_metadata_signature_size:
1994 * Return the amount of memory allocated to SIG.
1997 mono_metadata_signature_size (MonoMethodSignature *sig)
1999 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
2003 * mono_metadata_parse_method_signature:
2004 * @m: metadata context
2005 * @generic_container: generics container
2006 * @def: the MethodDef index or 0 for Ref signatures.
2007 * @ptr: pointer to the signature metadata representation
2008 * @rptr: pointer updated to match the end of the decoded stream
2010 * Decode a method signature stored at @ptr.
2011 * This is a Mono runtime internal function.
2013 * LOCKING: Assumes the loader lock is held.
2015 * Returns: a MonoMethodSignature describing the signature.
2017 MonoMethodSignature *
2018 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
2019 int def, const char *ptr, const char **rptr, MonoError *error)
2021 MonoMethodSignature *method;
2022 int i, *pattrs = NULL;
2023 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
2024 guint32 gen_param_count = 0;
2025 gboolean is_open = FALSE;
2027 mono_error_init (error);
2030 gen_param_count = 1;
2035 call_convention = *ptr & 0x0F;
2037 if (gen_param_count)
2038 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
2039 param_count = mono_metadata_decode_value (ptr, &ptr);
2042 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 */
2044 method = mono_metadata_signature_alloc (m, param_count);
2045 method->hasthis = hasthis;
2046 method->explicit_this = explicit_this;
2047 method->call_convention = call_convention;
2048 method->generic_param_count = gen_param_count;
2050 if (call_convention != 0xa) {
2051 method->ret = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [0] : 0, FALSE, ptr, &ptr, error);
2053 mono_metadata_free_method_signature (method);
2057 is_open = mono_class_is_open_constructed_type (method->ret);
2060 for (i = 0; i < method->param_count; ++i) {
2061 if (*ptr == MONO_TYPE_SENTINEL) {
2062 if (method->call_convention != MONO_CALL_VARARG || def) {
2063 mono_loader_assert_no_error ();
2064 mono_error_set_bad_image (error, m, "Found sentinel for methoddef or no vararg");
2068 if (method->sentinelpos >= 0) {
2069 mono_loader_assert_no_error ();
2070 mono_error_set_bad_image (error, m, "Found sentinel twice in the same signature.");
2074 method->sentinelpos = i;
2077 method->params [i] = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [i+1] : 0, FALSE, ptr, &ptr, error);
2078 if (!method->params [i]) {
2079 mono_metadata_free_method_signature (method);
2084 is_open = mono_class_is_open_constructed_type (method->params [i]);
2087 /* The sentinel could be missing if the caller does not pass any additional arguments */
2088 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
2089 method->sentinelpos = method->param_count;
2091 method->has_type_parameters = is_open;
2093 if (def && (method->call_convention == MONO_CALL_VARARG))
2094 method->sentinelpos = method->param_count;
2101 * Add signature to a cache and increase ref count...
2104 mono_loader_assert_no_error ();
2109 * mono_metadata_parse_method_signature:
2110 * @m: metadata context
2111 * @def: the MethodDef index or 0 for Ref signatures.
2112 * @ptr: pointer to the signature metadata representation
2113 * @rptr: pointer updated to match the end of the decoded stream
2115 * Decode a method signature stored at @ptr.
2116 * This is a Mono runtime internal function.
2118 * LOCKING: Assumes the loader lock is held.
2120 * Returns: a MonoMethodSignature describing the signature.
2122 MonoMethodSignature *
2123 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
2126 * This function MUST NOT be called by runtime code as it does error handling incorrectly.
2127 * Use mono_metadata_parse_method_signature_full instead.
2128 * It's ok to asser on failure as we no longer use it.
2131 MonoMethodSignature *ret;
2132 ret = mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr, &error);
2133 g_assert (mono_error_ok (&error));
2139 * mono_metadata_free_method_signature:
2140 * @sig: signature to destroy
2142 * Free the memory allocated in the signature @sig.
2143 * This method needs to be robust and work also on partially-built
2144 * signatures, so it does extra checks.
2147 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2149 /* Everything is allocated from mempools */
2153 mono_metadata_free_type (sig->ret);
2154 for (i = 0; i < sig->param_count; ++i) {
2155 if (sig->params [i])
2156 mono_metadata_free_type (sig->params [i]);
2162 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2166 /* Allocated in inflate_generic_signature () */
2168 mono_metadata_free_type (sig->ret);
2169 for (i = 0; i < sig->param_count; ++i) {
2170 if (sig->params [i])
2171 mono_metadata_free_type (sig->params [i]);
2177 inflated_method_equal (gconstpointer a, gconstpointer b)
2179 const MonoMethodInflated *ma = (const MonoMethodInflated *)a;
2180 const MonoMethodInflated *mb = (const MonoMethodInflated *)b;
2181 if (ma->declaring != mb->declaring)
2183 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2187 inflated_method_hash (gconstpointer a)
2189 const MonoMethodInflated *ma = (const MonoMethodInflated *)a;
2190 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring));
2194 inflated_signature_equal (gconstpointer a, gconstpointer b)
2196 const MonoInflatedMethodSignature *sig1 = (const MonoInflatedMethodSignature *)a;
2197 const MonoInflatedMethodSignature *sig2 = (const MonoInflatedMethodSignature *)b;
2199 /* sig->sig is assumed to be canonized */
2200 if (sig1->sig != sig2->sig)
2202 /* The generic instances are canonized */
2203 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2207 inflated_signature_hash (gconstpointer a)
2209 const MonoInflatedMethodSignature *sig = (const MonoInflatedMethodSignature *)a;
2211 /* sig->sig is assumed to be canonized */
2212 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2216 dump_ginst (MonoGenericInst *ginst)
2221 g_print ("Ginst: <");
2222 for (i = 0; i < ginst->type_argc; ++i) {
2225 name = mono_type_get_name (ginst->type_argv [i]);
2226 g_print ("%s", name);
2232 static gboolean type_in_image (MonoType *type, MonoImage *image);
2235 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2237 gpointer iter = NULL;
2240 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2241 if (type_in_image (p, image))
2244 return type_in_image (mono_signature_get_return_type (sig), image);
2248 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2252 for (i = 0; i < ginst->type_argc; ++i) {
2253 if (type_in_image (ginst->type_argv [i], image))
2261 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2263 return gclass->container_class->image == image ||
2264 ginst_in_image (gclass->context.class_inst, image);
2268 type_in_image (MonoType *type, MonoImage *image)
2271 switch (type->type) {
2272 case MONO_TYPE_GENERICINST:
2273 return gclass_in_image (type->data.generic_class, image);
2275 type = type->data.type;
2277 case MONO_TYPE_SZARRAY:
2278 type = &type->data.klass->byval_arg;
2280 case MONO_TYPE_ARRAY:
2281 type = &type->data.array->eklass->byval_arg;
2283 case MONO_TYPE_FNPTR:
2284 return signature_in_image (type->data.method, image);
2286 case MONO_TYPE_MVAR:
2287 return image == get_image_for_generic_param (type->data.generic_param);
2289 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2290 return image == mono_class_from_mono_type (type)->image;
2295 image_sets_lock (void)
2297 mono_os_mutex_lock (&image_sets_mutex);
2301 image_sets_unlock (void)
2303 mono_os_mutex_unlock (&image_sets_mutex);
2309 * Return a MonoImageSet representing the set of images in IMAGES.
2311 static MonoImageSet*
2312 get_image_set (MonoImage **images, int nimages)
2318 /* Common case: Image set contains corlib only. If we've seen that case before, we cached the set. */
2319 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2320 return mscorlib_image_set;
2322 /* Happens with empty generic instances */
2323 // FIXME: Is corlib the correct thing to return here? If so, why? This may be an artifact of generic instances previously defaulting to allocating from corlib.
2325 return mscorlib_image_set;
2330 image_sets = g_ptr_array_new ();
2332 // Before we go on, we should check to see whether a MonoImageSet with these images already exists.
2333 // We can search the referred-by imagesets of any one of our images to do this. Arbitrarily pick one here:
2334 if (images [0] == mono_defaults.corlib && nimages > 1)
2335 l = images [1]->image_sets; // Prefer not to search the imagesets of corlib-- that will be a long list.
2337 l = images [0]->image_sets;
2340 while (l) // Iterate over selected list, looking for an imageset with members equal to our target one
2342 set = (MonoImageSet *)l->data;
2344 if (set->nimages == nimages) { // Member count differs, this can't be it
2345 // Compare all members to all members-- order might be different
2346 for (j = 0; j < nimages; ++j) {
2347 for (k = 0; k < nimages; ++k)
2348 if (set->images [k] == images [j])
2349 break; // Break on match
2351 // If we iterated all the way through set->images, images[j] was *not* found.
2353 break; // Break on "image not found"
2356 // If we iterated all the way through images without breaking, all items in images were found in set->images
2358 break; // Break on "found a set with equal members"
2364 // If we iterated all the way through l without breaking, the imageset does not already exist and we shuold create it
2366 set = g_new0 (MonoImageSet, 1);
2367 set->nimages = nimages;
2368 set->images = g_new0 (MonoImage*, nimages);
2369 mono_os_mutex_init_recursive (&set->lock);
2370 for (i = 0; i < nimages; ++i)
2371 set->images [i] = images [i];
2372 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2373 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2374 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2375 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2377 for (i = 0; i < nimages; ++i)
2378 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2380 g_ptr_array_add (image_sets, set);
2383 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2384 mono_memory_barrier ();
2385 mscorlib_image_set = set;
2388 image_sets_unlock ();
2394 delete_image_set (MonoImageSet *set)
2398 g_hash_table_destroy (set->gclass_cache);
2399 g_hash_table_destroy (set->ginst_cache);
2400 g_hash_table_destroy (set->gmethod_cache);
2401 g_hash_table_destroy (set->gsignature_cache);
2403 mono_wrapper_caches_free (&set->wrapper_caches);
2407 for (i = 0; i < set->nimages; ++i)
2408 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2410 g_ptr_array_remove (image_sets, set);
2412 image_sets_unlock ();
2415 mono_mempool_destroy (set->mempool);
2416 g_free (set->images);
2417 mono_os_mutex_destroy (&set->lock);
2422 mono_image_set_lock (MonoImageSet *set)
2424 mono_os_mutex_lock (&set->lock);
2428 mono_image_set_unlock (MonoImageSet *set)
2430 mono_os_mutex_unlock (&set->lock);
2434 mono_image_set_alloc (MonoImageSet *set, guint size)
2438 mono_image_set_lock (set);
2440 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2441 res = mono_mempool_alloc (set->mempool, size);
2442 mono_image_set_unlock (set);
2448 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2452 mono_image_set_lock (set);
2454 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2455 res = mono_mempool_alloc0 (set->mempool, size);
2456 mono_image_set_unlock (set);
2462 mono_image_set_strdup (MonoImageSet *set, const char *s)
2466 mono_image_set_lock (set);
2468 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2469 res = mono_mempool_strdup (set->mempool, s);
2470 mono_image_set_unlock (set);
2475 // Get a descriptive string for a MonoImageSet
2476 // Callers are obligated to free buffer with g_free after use
2478 mono_image_set_description (MonoImageSet *set)
2480 GString *result = g_string_new (NULL);
2482 g_string_append (result, "[");
2483 for (img = 0; img < set->nimages; img++)
2486 g_string_append (result, ", ");
2487 g_string_append (result, set->images[img]->name);
2489 g_string_append (result, "]");
2490 return g_string_free (result, FALSE);
2494 * Structure used by the collect_..._images functions to store the image list.
2497 MonoImage *image_buf [64];
2499 int nimages, images_len;
2503 collect_data_init (CollectData *data)
2505 data->images = data->image_buf;
2506 data->images_len = 64;
2511 collect_data_free (CollectData *data)
2513 if (data->images != data->image_buf)
2514 g_free (data->images);
2518 enlarge_data (CollectData *data)
2520 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2521 MonoImage **d = g_new (MonoImage *, new_len);
2524 g_assert_not_reached ();
2525 memcpy (d, data->images, data->images_len);
2526 if (data->images != data->image_buf)
2527 g_free (data->images);
2529 data->images_len = new_len;
2533 add_image (MonoImage *image, CollectData *data)
2537 /* The arrays are small, so use a linear search instead of a hash table */
2538 for (i = 0; i < data->nimages; ++i)
2539 if (data->images [i] == image)
2542 if (data->nimages == data->images_len)
2543 enlarge_data (data);
2545 data->images [data->nimages ++] = image;
2549 collect_type_images (MonoType *type, CollectData *data);
2552 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2556 for (i = 0; i < ginst->type_argc; ++i) {
2557 collect_type_images (ginst->type_argv [i], data);
2562 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2564 add_image (gclass->container_class->image, data);
2565 if (gclass->context.class_inst)
2566 collect_ginst_images (gclass->context.class_inst, data);
2570 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2572 gpointer iter = NULL;
2575 collect_type_images (mono_signature_get_return_type (sig), data);
2576 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2577 collect_type_images (p, data);
2581 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2583 collect_signature_images (sig->sig, data);
2584 if (sig->context.class_inst)
2585 collect_ginst_images (sig->context.class_inst, data);
2586 if (sig->context.method_inst)
2587 collect_ginst_images (sig->context.method_inst, data);
2591 collect_method_images (MonoMethodInflated *method, CollectData *data)
2593 MonoMethod *m = method->declaring;
2595 add_image (method->declaring->klass->image, data);
2596 if (method->context.class_inst)
2597 collect_ginst_images (method->context.class_inst, data);
2598 if (method->context.method_inst)
2599 collect_ginst_images (method->context.method_inst, data);
2601 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2603 if (image_is_dynamic (m->klass->image))
2604 collect_signature_images (mono_method_signature (m), data);
2608 collect_type_images (MonoType *type, CollectData *data)
2611 switch (type->type) {
2612 case MONO_TYPE_GENERICINST:
2613 collect_gclass_images (type->data.generic_class, data);
2616 type = type->data.type;
2618 case MONO_TYPE_SZARRAY:
2619 type = &type->data.klass->byval_arg;
2621 case MONO_TYPE_ARRAY:
2622 type = &type->data.array->eklass->byval_arg;
2624 case MONO_TYPE_FNPTR:
2625 //return signature_in_image (type->data.method, image);
2626 g_assert_not_reached ();
2628 case MONO_TYPE_MVAR:
2630 MonoImage *image = get_image_for_generic_param (type->data.generic_param);
2631 add_image (image, data);
2634 case MONO_TYPE_CLASS:
2635 case MONO_TYPE_VALUETYPE:
2636 add_image (mono_class_from_mono_type (type)->image, data);
2639 add_image (mono_defaults.corlib, data);
2646 } CleanForImageUserData;
2649 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2651 MonoGenericClass *gclass = (MonoGenericClass *)key;
2652 CleanForImageUserData *user_data = (CleanForImageUserData *)data;
2654 g_assert (gclass_in_image (gclass, user_data->image));
2656 user_data->list = g_slist_prepend (user_data->list, gclass);
2661 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2663 MonoGenericInst *ginst = (MonoGenericInst *)key;
2664 CleanForImageUserData *user_data = (CleanForImageUserData *)data;
2666 // This doesn't work during corlib compilation
2667 //g_assert (ginst_in_image (ginst, user_data->image));
2669 user_data->list = g_slist_prepend (user_data->list, ginst);
2674 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2676 MonoImage *image = (MonoImage *)data;
2677 MonoMethodInflated *method = (MonoMethodInflated *)key;
2680 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2681 g_assert (method->declaring->klass->image == image ||
2682 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2683 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2689 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2691 MonoImage *image = (MonoImage *)data;
2692 MonoInflatedMethodSignature *sig = (MonoInflatedMethodSignature *)key;
2694 return signature_in_image (sig->sig, image) ||
2695 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2696 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2700 check_gmethod (gpointer key, gpointer value, gpointer data)
2702 MonoMethodInflated *method = (MonoMethodInflated *)key;
2703 MonoImage *image = (MonoImage *)data;
2705 if (method->context.class_inst)
2706 g_assert (!ginst_in_image (method->context.class_inst, image));
2707 if (method->context.method_inst)
2708 g_assert (!ginst_in_image (method->context.method_inst, image));
2709 if (((MonoMethod*)method)->signature)
2710 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2716 * Run a consistency check on the image set data structures.
2718 static G_GNUC_UNUSED void
2719 check_image_sets (MonoImage *image)
2722 GSList *l = image->image_sets;
2727 for (i = 0; i < image_sets->len; ++i) {
2728 MonoImageSet *set = (MonoImageSet *)g_ptr_array_index (image_sets, i);
2730 if (!g_slist_find (l, set)) {
2731 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2737 mono_metadata_clean_for_image (MonoImage *image)
2739 CleanForImageUserData ginst_data, gclass_data;
2740 GSList *l, *set_list;
2742 //check_image_sets (image);
2745 * The data structures could reference each other so we delete them in two phases.
2746 * This is required because of the hashing functions in gclass/ginst_cache.
2748 ginst_data.image = gclass_data.image = image;
2749 ginst_data.list = gclass_data.list = NULL;
2751 /* Collect the items to delete */
2752 /* delete_image_set () modifies the lists so make a copy */
2753 for (l = image->image_sets; l; l = l->next) {
2754 MonoImageSet *set = (MonoImageSet *)l->data;
2756 mono_image_set_lock (set);
2757 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2758 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2759 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2760 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2761 mono_image_set_unlock (set);
2764 /* Delete the removed items */
2765 for (l = ginst_data.list; l; l = l->next)
2766 free_generic_inst ((MonoGenericInst *)l->data);
2767 for (l = gclass_data.list; l; l = l->next)
2768 free_generic_class ((MonoGenericClass *)l->data);
2769 g_slist_free (ginst_data.list);
2770 g_slist_free (gclass_data.list);
2771 /* delete_image_set () modifies the lists so make a copy */
2772 set_list = g_slist_copy (image->image_sets);
2773 for (l = set_list; l; l = l->next) {
2774 MonoImageSet *set = (MonoImageSet *)l->data;
2776 delete_image_set (set);
2778 g_slist_free (set_list);
2782 free_inflated_method (MonoMethodInflated *imethod)
2785 MonoMethod *method = (MonoMethod*)imethod;
2787 if (method->signature)
2788 mono_metadata_free_inflated_signature (method->signature);
2790 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))) {
2791 MonoMethodHeader *header = imethod->header;
2794 /* Allocated in inflate_generic_header () */
2795 for (i = 0; i < header->num_locals; ++i)
2796 mono_metadata_free_type (header->locals [i]);
2797 g_free (header->clauses);
2806 free_generic_inst (MonoGenericInst *ginst)
2810 /* The ginst itself is allocated from the image set mempool */
2811 for (i = 0; i < ginst->type_argc; ++i)
2812 mono_metadata_free_type (ginst->type_argv [i]);
2816 free_generic_class (MonoGenericClass *gclass)
2818 /* The gclass itself is allocated from the image set mempool */
2819 if (gclass->is_dynamic)
2820 mono_reflection_free_dynamic_generic_class (gclass);
2821 if (gclass->cached_class && gclass->cached_class->interface_id)
2822 mono_unload_interface_id (gclass->cached_class);
2826 free_inflated_signature (MonoInflatedMethodSignature *sig)
2828 mono_metadata_free_inflated_signature (sig->sig);
2833 * mono_metadata_get_inflated_signature:
2835 * Given an inflated signature and a generic context, return a canonical copy of the
2836 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2838 MonoMethodSignature *
2839 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2841 MonoInflatedMethodSignature helper;
2842 MonoInflatedMethodSignature *res;
2847 helper.context.class_inst = context->class_inst;
2848 helper.context.method_inst = context->method_inst;
2850 collect_data_init (&data);
2852 collect_inflated_signature_images (&helper, &data);
2854 set = get_image_set (data.images, data.nimages);
2856 collect_data_free (&data);
2858 mono_image_set_lock (set);
2860 res = (MonoInflatedMethodSignature *)g_hash_table_lookup (set->gsignature_cache, &helper);
2862 res = g_new0 (MonoInflatedMethodSignature, 1);
2864 res->context.class_inst = context->class_inst;
2865 res->context.method_inst = context->method_inst;
2866 g_hash_table_insert (set->gsignature_cache, res, res);
2869 mono_image_set_unlock (set);
2875 mono_metadata_get_image_set_for_method (MonoMethodInflated *method)
2878 CollectData image_set_data;
2880 collect_data_init (&image_set_data);
2881 collect_method_images (method, &image_set_data);
2882 set = get_image_set (image_set_data.images, image_set_data.nimages);
2883 collect_data_free (&image_set_data);
2889 * mono_metadata_get_generic_inst:
2891 * Given a list of types, return a MonoGenericInst that represents that list.
2892 * The returned MonoGenericInst has its own copy of the list of types. The list
2893 * passed in the argument can be freed, modified or disposed of.
2897 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2899 MonoGenericInst *ginst;
2902 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2906 for (i = 0; i < type_argc; ++i)
2907 if (mono_class_is_open_constructed_type (type_argv [i]))
2909 is_open = (i < type_argc);
2911 ginst = (MonoGenericInst *)g_alloca (size);
2912 memset (ginst, 0, sizeof (MonoGenericInst));
2913 ginst->is_open = is_open;
2914 ginst->type_argc = type_argc;
2915 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2917 collect_data_init (&data);
2919 collect_ginst_images (ginst, &data);
2921 set = get_image_set (data.images, data.nimages);
2923 collect_data_free (&data);
2925 mono_image_set_lock (set);
2927 ginst = (MonoGenericInst *)g_hash_table_lookup (set->ginst_cache, ginst);
2929 ginst = (MonoGenericInst *)mono_image_set_alloc0 (set, size);
2930 #ifndef MONO_SMALL_CONFIG
2931 ginst->id = ++next_generic_inst_id;
2933 ginst->is_open = is_open;
2934 ginst->type_argc = type_argc;
2936 for (i = 0; i < type_argc; ++i)
2937 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2939 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2942 mono_image_set_unlock (set);
2947 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2949 MonoGenericContainer *container = container_class->generic_container;
2951 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2953 return inst == container->context.class_inst;
2957 * mono_metadata_lookup_generic_class:
2959 * Returns a MonoGenericClass with the given properties.
2963 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2965 MonoGenericClass *gclass;
2966 MonoGenericClass helper;
2967 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2971 memset (&helper, 0, sizeof(helper)); // act like g_new0
2972 helper.container_class = container_class;
2973 helper.context.class_inst = inst;
2974 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2975 helper.is_tb_open = is_tb_open;
2977 collect_data_init (&data);
2979 collect_gclass_images (&helper, &data);
2981 set = get_image_set (data.images, data.nimages);
2983 collect_data_free (&data);
2985 mono_image_set_lock (set);
2987 gclass = (MonoGenericClass *)g_hash_table_lookup (set->gclass_cache, &helper);
2989 /* A tripwire just to keep us honest */
2990 g_assert (!helper.cached_class);
2993 mono_image_set_unlock (set);
2998 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
2999 gclass = &dgclass->generic_class;
3000 gclass->is_dynamic = 1;
3002 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
3005 gclass->is_tb_open = is_tb_open;
3006 gclass->container_class = container_class;
3007 gclass->context.class_inst = inst;
3008 gclass->context.method_inst = NULL;
3009 gclass->owner = set;
3010 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
3011 gclass->cached_class = container_class;
3013 g_hash_table_insert (set->gclass_cache, gclass, gclass);
3015 mono_image_set_unlock (set);
3021 * mono_metadata_inflate_generic_inst:
3023 * Instantiate the generic instance @ginst with the context @context.
3024 * Check @error for success.
3028 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
3030 MonoType **type_argv;
3031 MonoGenericInst *nginst = NULL;
3034 mono_error_init (error);
3036 if (!ginst->is_open)
3039 type_argv = g_new0 (MonoType*, ginst->type_argc);
3041 for (i = 0; i < ginst->type_argc; i++) {
3042 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
3043 if (!mono_error_ok (error))
3048 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
3051 for (i = 0; i < count; i++)
3052 mono_metadata_free_type (type_argv [i]);
3059 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3060 int count, const char *ptr, const char **rptr, MonoError *error)
3062 MonoType **type_argv;
3063 MonoGenericInst *ginst;
3066 mono_error_init (error);
3067 type_argv = g_new0 (MonoType*, count);
3069 for (i = 0; i < count; i++) {
3070 MonoType *t = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error);
3081 ginst = mono_metadata_get_generic_inst (count, type_argv);
3089 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3090 const char *ptr, const char **rptr, MonoError *error)
3092 MonoGenericInst *inst;
3097 mono_error_init (error);
3099 // XXX how about transient?
3100 gtype = mono_metadata_parse_type_checked (m, NULL, 0, FALSE, ptr, &ptr, error);
3104 gklass = mono_class_from_mono_type (gtype);
3105 if (!gklass->generic_container) {
3106 mono_error_set_bad_image (error, m, "Generic instance with non-generic definition");
3110 count = mono_metadata_decode_value (ptr, &ptr);
3111 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr, error);
3118 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3124 * @gc: The generic container to normalize
3125 * @type: The kind of generic parameters the resulting generic-container should contain
3128 static MonoGenericContainer *
3129 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3131 gboolean is_var = (type == MONO_TYPE_VAR);
3135 g_assert (is_var || type == MONO_TYPE_MVAR);
3138 if (gc->is_method || gc->parent)
3140 * The current MonoGenericContainer is a generic method -> its `parent'
3141 * points to the containing class'es container.
3149 MonoGenericContainer *
3150 get_anonymous_container_for_image (MonoImage *image, gboolean is_mvar)
3152 MonoGenericContainer **container_pointer;
3154 container_pointer = &image->anonymous_generic_method_container;
3156 container_pointer = &image->anonymous_generic_class_container;
3157 MonoGenericContainer *result = *container_pointer;
3159 // This container has never been created; make it now.
3162 // Note this is never deallocated anywhere-- it exists for the lifetime of the image it's allocated from
3163 result = (MonoGenericContainer *)mono_image_alloc0 (image, sizeof (MonoGenericContainer));
3164 result->owner.image = image;
3165 result->is_anonymous = TRUE;
3166 result->is_small_param = TRUE;
3167 result->is_method = is_mvar;
3169 // If another thread already made a container, use that and leak this new one.
3170 // (Technically it would currently be safe to just assign instead of CASing.)
3171 MonoGenericContainer *exchange = (MonoGenericContainer *)InterlockedCompareExchangePointer ((volatile gpointer *)container_pointer, result, NULL);
3179 * mono_metadata_parse_generic_param:
3180 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3181 * see mono_metadata_parse_type_full() for details.
3182 * Internal routine to parse a generic type parameter.
3183 * LOCKING: Acquires the loader lock
3185 static MonoGenericParam *
3186 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3187 MonoTypeEnum type, const char *ptr, const char **rptr, MonoError *error)
3189 int index = mono_metadata_decode_value (ptr, &ptr);
3193 mono_error_init (error);
3195 generic_container = select_container (generic_container, type);
3196 if (!generic_container) {
3197 gboolean is_mvar = FALSE;
3202 case MONO_TYPE_MVAR:
3206 g_error ("Cerating generic param object with invalid MonoType"); // This is not a generic param
3209 /* Create dummy MonoGenericParam */
3210 MonoGenericParam *param;
3212 param = (MonoGenericParam *)mono_image_alloc0 (m, sizeof (MonoGenericParam));
3214 param->owner = get_anonymous_container_for_image (m, is_mvar);
3219 if (index >= generic_container->type_argc) {
3220 mono_error_set_bad_image (error, m, "Invalid generic %s parameter index %d, max index is %d",
3221 generic_container->is_method ? "method" : "type",
3222 index, generic_container->type_argc);
3226 //This can't return NULL
3227 return mono_generic_container_get_param (generic_container, index);
3231 * mono_metadata_get_shared_type:
3233 * Return a shared instance of TYPE, if available, NULL otherwise.
3234 * Shared MonoType instances help save memory. Their contents should not be modified
3235 * by the caller. They do not need to be freed as their lifetime is bound by either
3236 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3237 * instance they are embedded in. If they are freed, they should be freed using
3238 * mono_metadata_free_type () instead of g_free ().
3241 mono_metadata_get_shared_type (MonoType *type)
3245 /* No need to use locking since nobody is modifying the hash table */
3246 if ((cached = (MonoType *)g_hash_table_lookup (type_cache, type)))
3249 switch (type->type){
3250 case MONO_TYPE_CLASS:
3251 case MONO_TYPE_VALUETYPE:
3252 if (type == &type->data.klass->byval_arg)
3254 if (type == &type->data.klass->this_arg)
3265 compare_type_literals (MonoImage *image, int class_type, int type_type, MonoError *error)
3267 mono_error_init (error);
3269 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3270 * See mcs/test/gtest-440. and #650936.
3271 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3275 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3278 if (class_type == type_type)
3281 if (type_type == MONO_TYPE_CLASS) {
3282 if (class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT)
3284 //XXX stringify this argument
3285 mono_error_set_bad_image (error, image, "Expected reference type but got type kind %d", class_type);
3289 g_assert (type_type == MONO_TYPE_VALUETYPE);
3290 switch (class_type) {
3291 case MONO_TYPE_BOOLEAN:
3292 case MONO_TYPE_CHAR:
3305 case MONO_TYPE_CLASS:
3308 //XXX stringify this argument
3309 mono_error_set_bad_image (error, image, "Expected value type but got type kind %d", class_type);
3315 verify_var_type_and_container (MonoImage *image, int var_type, MonoGenericContainer *container, MonoError *error)
3317 mono_error_init (error);
3318 if (var_type == MONO_TYPE_MVAR) {
3319 if (!container->is_method) { //MVAR and a method container
3320 mono_error_set_bad_image (error, image, "MVAR parsed in a context without a method container");
3324 if (!(!container->is_method || //VAR and class container
3325 (container->is_method && container->parent))) { //VAR and method container with parent
3326 mono_error_set_bad_image (error, image, "VAR parsed in a context without a class container");
3334 * do_mono_metadata_parse_type:
3335 * @type: MonoType to be filled in with the return value
3337 * @generic_context: generics_context
3338 * @transient: whenever to allocate data from the heap
3339 * @ptr: pointer to the encoded type
3340 * @rptr: pointer where the end of the encoded type is saved
3342 * Internal routine used to "fill" the contents of @type from an
3343 * allocated pointer. This is done this way to avoid doing too
3344 * many mini-allocations (particularly for the MonoFieldType which
3345 * most of the time is just a MonoType, but sometimes might be augmented).
3347 * This routine is used by mono_metadata_parse_type and
3348 * mono_metadata_parse_field_type
3350 * This extracts a Type as specified in Partition II (22.2.12)
3352 * Returns: FALSE if the type could not be loaded
3355 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3356 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
3358 mono_error_init (error);
3360 type->type = (MonoTypeEnum)mono_metadata_decode_value (ptr, &ptr);
3362 switch (type->type){
3363 case MONO_TYPE_VOID:
3364 case MONO_TYPE_BOOLEAN:
3365 case MONO_TYPE_CHAR:
3378 case MONO_TYPE_STRING:
3379 case MONO_TYPE_OBJECT:
3380 case MONO_TYPE_TYPEDBYREF:
3382 case MONO_TYPE_VALUETYPE:
3383 case MONO_TYPE_CLASS: {
3386 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3387 klass = mono_class_get_checked (m, token, error);
3388 type->data.klass = klass;
3392 if (!compare_type_literals (m, klass->byval_arg.type, type->type, error))
3397 case MONO_TYPE_SZARRAY: {
3398 MonoType *etype = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3402 type->data.klass = mono_class_from_mono_type (etype);
3403 g_assert (type->data.klass); //This was previously a check for NULL, but mcfmt should never fail. It can return a borken MonoClass, but should return at least something.
3406 case MONO_TYPE_PTR: {
3407 type->data.type = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3408 if (!type->data.type)
3412 case MONO_TYPE_FNPTR: {
3413 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, error);
3414 if (!type->data.method)
3418 case MONO_TYPE_ARRAY: {
3419 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr, error);
3420 if (!type->data.array)
3424 case MONO_TYPE_MVAR:
3425 case MONO_TYPE_VAR: {
3426 if (container && !verify_var_type_and_container (m, type->type, container, error))
3429 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr, error);
3430 if (!type->data.generic_param)
3435 case MONO_TYPE_GENERICINST: {
3436 if (!do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr, error))
3441 mono_error_set_bad_image (error, m, "type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3451 * mono_metadata_free_type:
3452 * @type: type to free
3454 * Free the memory allocated for type @type which is allocated on the heap.
3457 mono_metadata_free_type (MonoType *type)
3459 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3462 switch (type->type){
3463 case MONO_TYPE_OBJECT:
3464 case MONO_TYPE_STRING:
3465 if (!type->data.klass)
3468 case MONO_TYPE_CLASS:
3469 case MONO_TYPE_VALUETYPE:
3470 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3474 mono_metadata_free_type (type->data.type);
3476 case MONO_TYPE_FNPTR:
3477 mono_metadata_free_method_signature (type->data.method);
3479 case MONO_TYPE_ARRAY:
3480 mono_metadata_free_array (type->data.array);
3491 hex_dump (const char *buffer, int base, int count)
3493 int show_header = 1;
3501 for (i = 0; i < count; i++){
3504 printf ("\n0x%08x: ", (unsigned char) base + i);
3506 printf ("%02x ", (unsigned char) (buffer [i]));
3513 * @ptr: Points to the beginning of the Section Data (25.3)
3515 static MonoExceptionClause*
3516 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3518 unsigned char sect_data_flags;
3520 guint32 sect_data_len;
3521 MonoExceptionClause* clauses = NULL;
3524 /* align on 32-bit boundary */
3525 ptr = dword_align (ptr);
3526 sect_data_flags = *ptr;
3529 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3531 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3534 sect_data_len = ptr [0];
3538 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3539 const unsigned char *p = dword_align (ptr);
3541 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3542 /* we could just store a pointer if we don't need to byteswap */
3543 clauses = (MonoExceptionClause *)g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3544 for (i = 0; i < *num_clauses; ++i) {
3545 MonoExceptionClause *ec = &clauses [i];
3548 ec->flags = read32 (p);
3549 ec->try_offset = read32 (p + 4);
3550 ec->try_len = read32 (p + 8);
3551 ec->handler_offset = read32 (p + 12);
3552 ec->handler_len = read32 (p + 16);
3553 tof_value = read32 (p + 20);
3556 ec->flags = read16 (p);
3557 ec->try_offset = read16 (p + 2);
3558 ec->try_len = *(p + 4);
3559 ec->handler_offset = read16 (p + 5);
3560 ec->handler_len = *(p + 7);
3561 tof_value = read32 (p + 8);
3564 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3565 ec->data.filter_offset = tof_value;
3566 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3567 ec->data.catch_class = NULL;
3570 ec->data.catch_class = mono_class_get_checked (m, tof_value, &error);
3571 if (!mono_error_ok (&error)) {
3572 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3578 ec->data.catch_class = NULL;
3580 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3584 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3585 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3592 * mono_method_get_header_summary:
3593 * @method: The method to get the header.
3594 * @summary: Where to store the header
3597 * Returns: TRUE if the header was properly decoded.
3600 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3606 unsigned char flags, format;
3609 /*Only the GMD has a pointer to the metadata.*/
3610 while (method->is_inflated)
3611 method = ((MonoMethodInflated*)method)->declaring;
3613 summary->code_size = 0;
3614 summary->has_clauses = FALSE;
3616 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3617 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))
3620 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3621 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3624 summary->code_size = header->code_size;
3625 summary->has_clauses = header->num_clauses > 0;
3630 idx = mono_metadata_token_index (method->token);
3631 img = method->klass->image;
3632 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3634 /*We must run the verifier since we'll be decoding it.*/
3635 if (!mono_verifier_verify_method_header (img, rva, NULL))
3638 ptr = mono_image_rva_map (img, rva);
3642 flags = *(const unsigned char *)ptr;
3643 format = flags & METHOD_HEADER_FORMAT_MASK;
3646 case METHOD_HEADER_TINY_FORMAT:
3648 summary->code_size = flags >> 2;
3650 case METHOD_HEADER_FAT_FORMAT:
3651 fat_flags = read16 (ptr);
3653 summary->code_size = read32 (ptr);
3654 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3655 summary->has_clauses = TRUE;
3664 * mono_metadata_parse_mh_full:
3665 * @m: metadata context
3666 * @generic_context: generics context
3667 * @ptr: pointer to the method header.
3669 * Decode the method header at @ptr, including pointer to the IL code,
3670 * info about local variables and optional exception tables.
3671 * This is a Mono runtime internal function.
3673 * LOCKING: Acquires the loader lock.
3675 * Returns: a transient MonoMethodHeader allocated from the heap.
3678 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3680 MonoMethodHeader *mh = NULL;
3681 unsigned char flags = *(const unsigned char *) ptr;
3682 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3684 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3685 const unsigned char *code;
3686 MonoExceptionClause* clauses = NULL;
3687 int num_clauses = 0;
3688 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3689 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3691 g_return_val_if_fail (ptr != NULL, NULL);
3694 case METHOD_HEADER_TINY_FORMAT:
3695 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3698 mh->is_transient = TRUE;
3699 local_var_sig_tok = 0;
3700 mh->code_size = flags >> 2;
3701 mh->code = (unsigned char*)ptr;
3703 case METHOD_HEADER_FAT_FORMAT:
3704 fat_flags = read16 (ptr);
3706 max_stack = read16 (ptr);
3708 code_size = read32 (ptr);
3710 local_var_sig_tok = read32 (ptr);
3713 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3718 code = (unsigned char*)ptr;
3720 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3724 * There are more sections
3726 ptr = (char*)code + code_size;
3732 if (local_var_sig_tok) {
3733 int idx = (local_var_sig_tok & 0xffffff)-1;
3734 if (idx >= t->rows || idx < 0)
3736 mono_metadata_decode_row (t, idx, cols, 1);
3738 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3741 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3742 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3743 if (local_var_sig_tok) {
3744 const char *locals_ptr;
3747 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3748 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3749 if (*locals_ptr != 0x07)
3750 g_warning ("wrong signature for locals blob");
3752 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3753 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3754 mh->num_locals = len;
3755 for (i = 0; i < len; ++i) {
3757 mh->locals [i] = mono_metadata_parse_type_internal (m, container, 0, TRUE, locals_ptr, &locals_ptr, &error);
3758 if (!mono_error_ok (&error)) {
3759 mono_loader_set_error_from_mono_error (&error);
3760 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3763 if (!mh->locals [i])
3767 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3770 mh->code_size = code_size;
3771 mh->max_stack = max_stack;
3772 mh->is_transient = TRUE;
3773 mh->init_locals = init_locals;
3775 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3776 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3778 mh->clauses = clausesp;
3779 mh->num_clauses = num_clauses;
3790 * mono_metadata_parse_mh:
3791 * @generic_context: generics context
3792 * @ptr: pointer to the method header.
3794 * Decode the method header at @ptr, including pointer to the IL code,
3795 * info about local variables and optional exception tables.
3797 * Returns: a transient MonoMethodHeader allocated from the heap.
3800 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3802 return mono_metadata_parse_mh_full (m, NULL, ptr);
3806 * mono_metadata_free_mh:
3807 * @mh: a method header
3809 * Free the memory allocated for the method header.
3812 mono_metadata_free_mh (MonoMethodHeader *mh)
3816 /* If it is not transient it means it's part of a wrapper method,
3817 * or a SRE-generated method, so the lifetime in that case is
3818 * dictated by the method's own lifetime
3820 if (mh->is_transient) {
3821 for (i = 0; i < mh->num_locals; ++i)
3822 mono_metadata_free_type (mh->locals [i]);
3828 * mono_method_header_get_code:
3829 * @header: a MonoMethodHeader pointer
3830 * @code_size: memory location for returning the code size
3831 * @max_stack: memory location for returning the max stack
3833 * Method header accessor to retreive info about the IL code properties:
3834 * a pointer to the IL code itself, the size of the code and the max number
3835 * of stack slots used by the code.
3837 * Returns: pointer to the IL code represented by the method header.
3839 const unsigned char*
3840 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3843 *code_size = header->code_size;
3845 *max_stack = header->max_stack;
3846 return header->code;
3850 * mono_method_header_get_locals:
3851 * @header: a MonoMethodHeader pointer
3852 * @num_locals: memory location for returning the number of local variables
3853 * @init_locals: memory location for returning the init_locals flag
3855 * Method header accessor to retreive info about the local variables:
3856 * an array of local types, the number of locals and whether the locals
3857 * are supposed to be initialized to 0 on method entry
3859 * Returns: pointer to an array of types of the local variables
3862 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3865 *num_locals = header->num_locals;
3867 *init_locals = header->init_locals;
3868 return header->locals;
3872 * mono_method_header_get_num_clauses:
3873 * @header: a MonoMethodHeader pointer
3875 * Method header accessor to retreive the number of exception clauses.
3877 * Returns: the number of exception clauses present
3880 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3882 return header->num_clauses;
3886 * mono_method_header_get_clauses:
3887 * @header: a MonoMethodHeader pointer
3888 * @method: MonoMethod the header belongs to
3889 * @iter: pointer to a iterator
3890 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3892 * Get the info about the exception clauses in the method. Set *iter to NULL to
3893 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3894 * At each iteration, the structure pointed to by clause if filled with the
3895 * exception clause information.
3897 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3901 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3903 MonoExceptionClause *sc;
3904 /* later we'll be able to use this interface to parse the clause info on demand,
3905 * without allocating anything.
3907 if (!iter || !header->num_clauses)
3910 *iter = sc = header->clauses;
3914 sc = (MonoExceptionClause *)*iter;
3916 if (sc < header->clauses + header->num_clauses) {
3925 * mono_metadata_parse_field_type:
3926 * @m: metadata context to extract information from
3927 * @ptr: pointer to the field signature
3928 * @rptr: pointer updated to match the end of the decoded stream
3930 * Parses the field signature, and returns the type information for it.
3932 * Returns: The MonoType that was extracted from @ptr.
3935 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3937 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3941 * mono_metadata_parse_param:
3942 * @m: metadata context to extract information from
3943 * @ptr: pointer to the param signature
3944 * @rptr: pointer updated to match the end of the decoded stream
3946 * Parses the param signature, and returns the type information for it.
3948 * Returns: The MonoType that was extracted from @ptr.
3951 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3953 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3957 * mono_metadata_token_from_dor:
3958 * @dor_token: A TypeDefOrRef coded index
3960 * dor_token is a TypeDefOrRef coded index: it contains either
3961 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3962 * bits contain an index into the table.
3964 * Returns: an expanded token
3967 mono_metadata_token_from_dor (guint32 dor_index)
3971 table = dor_index & 0x03;
3972 idx = dor_index >> 2;
3975 case 0: /* TypeDef */
3976 return MONO_TOKEN_TYPE_DEF | idx;
3977 case 1: /* TypeRef */
3978 return MONO_TOKEN_TYPE_REF | idx;
3979 case 2: /* TypeSpec */
3980 return MONO_TOKEN_TYPE_SPEC | idx;
3982 g_assert_not_reached ();
3989 * We use this to pass context information to the row locator
3992 int idx; /* The index that we are trying to locate */
3993 int col_idx; /* The index in the row where idx may be stored */
3994 MonoTableInfo *t; /* pointer to the table */
3999 * How the row locator works.
4004 * ___|___------> _______
4007 * A column in the rows of table A references an index in table B.
4008 * For example A may be the TYPEDEF table and B the METHODDEF table.
4010 * Given an index in table B we want to get the row in table A
4011 * where the column n references our index in B.
4013 * In the locator_t structure:
4015 * col_idx is the column number
4016 * index is the index in table B
4017 * result will be the index in table A
4020 * Table A Table B column (in table A)
4021 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
4022 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
4023 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
4024 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
4025 * METHODSEM PROPERTY ASSOCIATION (encoded index)
4027 * Note that we still don't support encoded indexes.
4031 typedef_locator (const void *a, const void *b)
4033 locator_t *loc = (locator_t *) a;
4034 const char *bb = (const char *) b;
4035 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
4036 guint32 col, col_next;
4038 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
4044 * Need to check that the next row is valid.
4046 if (typedef_index + 1 < loc->t->rows) {
4047 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
4048 if (loc->idx >= col_next)
4051 if (col == col_next)
4055 loc->result = typedef_index;
4061 table_locator (const void *a, const void *b)
4063 locator_t *loc = (locator_t *) a;
4064 const char *bb = (const char *) b;
4065 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4068 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4070 if (loc->idx == col) {
4071 loc->result = table_index;
4081 declsec_locator (const void *a, const void *b)
4083 locator_t *loc = (locator_t *) a;
4084 const char *bb = (const char *) b;
4085 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4088 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4090 if (loc->idx == col) {
4091 loc->result = table_index;
4103 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
4104 * which contains IDX.
4107 search_ptr_table (MonoImage *image, int table, int idx)
4109 MonoTableInfo *ptrdef = &image->tables [table];
4112 /* Use a linear search to find our index in the table */
4113 for (i = 0; i < ptrdef->rows; i ++)
4114 /* All the Ptr tables have the same structure */
4115 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
4118 if (i < ptrdef->rows)
4125 * mono_metadata_typedef_from_field:
4126 * @meta: metadata context
4127 * @index: FieldDef token
4129 * Returns: the 1-based index into the TypeDef table of the type that
4130 * declared the field described by @index, or 0 if not found.
4133 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
4135 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4141 loc.idx = mono_metadata_token_index (index);
4142 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
4145 if (meta->uncompressed_metadata)
4146 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4148 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4151 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4152 return loc.result + 1;
4156 * mono_metadata_typedef_from_method:
4157 * @meta: metadata context
4158 * @index: MethodDef token
4160 * Returns: the 1-based index into the TypeDef table of the type that
4161 * declared the method described by @index. 0 if not found.
4164 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4166 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4172 loc.idx = mono_metadata_token_index (index);
4173 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4176 if (meta->uncompressed_metadata)
4177 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4179 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4182 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4183 return loc.result + 1;
4187 * mono_metadata_interfaces_from_typedef_full:
4188 * @meta: metadata context
4189 * @index: typedef token
4190 * @interfaces: Out parameter used to store the interface array
4191 * @count: Out parameter used to store the number of interfaces
4192 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4193 * @context: The generic context
4195 * The array of interfaces that the @index typedef token implements is returned in
4196 * @interfaces. The number of elements in the array is returned in @count.
4199 * Returns: TRUE on success, FALSE on failure.
4202 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4204 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4207 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4213 mono_error_init (error);
4218 loc.idx = mono_metadata_token_index (index);
4219 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4222 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4227 * We may end up in the middle of the rows...
4230 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4236 while (pos < tdef->rows) {
4237 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4238 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4243 if (heap_alloc_result)
4244 result = g_new0 (MonoClass*, pos - start);
4246 result = (MonoClass **)mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4249 while (pos < tdef->rows) {
4252 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4253 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4255 iface = mono_class_get_and_inflate_typespec_checked (
4256 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4259 result [pos - start] = iface;
4262 *count = pos - start;
4263 *interfaces = result;
4268 * @meta: metadata context
4269 * @index: typedef token
4270 * @count: Out parameter used to store the number of interfaces
4272 * The array of interfaces that the @index typedef token implements is returned in
4273 * @interfaces. The number of elements in the array is returned in @count. The returned
4274 * array is g_malloc'd and the caller must free it.
4276 * LOCKING: Acquires the loader lock .
4278 * Returns: the interface array on success, NULL on failure.
4282 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4285 MonoClass **interfaces = NULL;
4288 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4289 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4297 * mono_metadata_nested_in_typedef:
4298 * @meta: metadata context
4299 * @index: typedef token
4301 * Returns: the 1-based index into the TypeDef table of the type
4302 * where the type described by @index is nested.
4303 * Returns 0 if @index describes a non-nested type.
4306 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4308 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4314 loc.idx = mono_metadata_token_index (index);
4315 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4318 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4321 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4322 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4326 * mono_metadata_nesting_typedef:
4327 * @meta: metadata context
4328 * @index: typedef token
4330 * Returns: the 1-based index into the TypeDef table of the first type
4331 * that is nested inside the type described by @index. The search starts at
4332 * @start_index. returns 0 if no such type is found.
4335 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4337 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4339 guint32 class_index = mono_metadata_token_index (index);
4344 start = start_index;
4346 while (start <= tdef->rows) {
4347 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4353 if (start > tdef->rows)
4360 * mono_metadata_packing_from_typedef:
4361 * @meta: metadata context
4362 * @index: token representing a type
4364 * Returns: the info stored in the ClassLAyout table for the given typedef token
4365 * into the @packing and @size pointers.
4366 * Returns 0 if the info is not found.
4369 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4371 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4373 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4378 loc.idx = mono_metadata_token_index (index);
4379 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4382 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4385 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4387 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4389 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4391 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4392 return loc.result + 1;
4396 * mono_metadata_custom_attrs_from_index:
4397 * @meta: metadata context
4398 * @index: token representing the parent
4400 * Returns: the 1-based index into the CustomAttribute table of the first
4401 * attribute which belongs to the metadata object described by @index.
4402 * Returns 0 if no such attribute is found.
4405 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4407 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4414 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4417 /* FIXME: Index translation */
4419 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4422 /* Find the first entry by searching backwards */
4423 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4426 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4427 return loc.result + 1;
4431 * mono_metadata_declsec_from_index:
4432 * @meta: metadata context
4433 * @index: token representing the parent
4435 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4436 * attribute which belongs to the metadata object described by @index.
4437 * Returns -1 if no such attribute is found.
4440 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4442 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4449 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4452 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4455 /* Find the first entry by searching backwards */
4456 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4463 * mono_metadata_localscope_from_methoddef:
4464 * @meta: metadata context
4465 * @index: methoddef index
4467 * Returns: the 1-based index into the LocalScope table of the first
4468 * scope which belongs to the method described by @index.
4469 * Returns 0 if no such row is found.
4472 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index)
4474 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_LOCALSCOPE];
4481 loc.col_idx = MONO_LOCALSCOPE_METHOD;
4484 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4487 /* Find the first entry by searching backwards */
4488 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_LOCALSCOPE_METHOD) == index))
4491 return loc.result + 1;
4496 mono_backtrace (int limit)
4501 backtrace (array, limit);
4502 names = backtrace_symbols (array, limit);
4503 for (i =0; i < limit; ++i) {
4504 g_print ("\t%s\n", names [i]);
4510 static int i8_align;
4513 * mono_type_set_alignment:
4515 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4516 * This should only be used in AOT mode since the resulting layout will not match the
4520 mono_type_set_alignment (MonoTypeEnum type, int align)
4522 /* Support only a few types whose alignment is abi dependent */
4528 g_assert_not_reached ();
4535 * @t: the type to return the size of
4537 * Returns: the number of bytes required to hold an instance of this
4541 mono_type_size (MonoType *t, int *align)
4543 MonoTypeEnum simple_type;
4550 *align = MONO_ABI_ALIGNOF (gpointer);
4551 return MONO_ABI_SIZEOF (gpointer);
4554 simple_type = t->type;
4556 switch (simple_type) {
4557 case MONO_TYPE_VOID:
4560 case MONO_TYPE_BOOLEAN:
4561 *align = MONO_ABI_ALIGNOF (gint8);
4565 *align = MONO_ABI_ALIGNOF (gint8);
4567 case MONO_TYPE_CHAR:
4570 *align = MONO_ABI_ALIGNOF (gint16);
4574 *align = MONO_ABI_ALIGNOF (gint32);
4577 *align = MONO_ABI_ALIGNOF (float);
4581 *align = MONO_ABI_ALIGNOF (gint64);
4584 *align = MONO_ABI_ALIGNOF (double);
4588 *align = MONO_ABI_ALIGNOF (gpointer);
4589 return MONO_ABI_SIZEOF (gpointer);
4590 case MONO_TYPE_VALUETYPE: {
4591 if (t->data.klass->enumtype)
4592 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4594 return mono_class_value_size (t->data.klass, (guint32*)align);
4596 case MONO_TYPE_STRING:
4597 case MONO_TYPE_OBJECT:
4598 case MONO_TYPE_CLASS:
4599 case MONO_TYPE_SZARRAY:
4601 case MONO_TYPE_FNPTR:
4602 case MONO_TYPE_ARRAY:
4603 *align = MONO_ABI_ALIGNOF (gpointer);
4604 return MONO_ABI_SIZEOF (gpointer);
4605 case MONO_TYPE_TYPEDBYREF:
4606 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4607 case MONO_TYPE_GENERICINST: {
4608 MonoGenericClass *gclass = t->data.generic_class;
4609 MonoClass *container_class = gclass->container_class;
4611 // g_assert (!gclass->inst->is_open);
4613 if (container_class->valuetype) {
4614 if (container_class->enumtype)
4615 return mono_type_size (mono_class_enum_basetype (container_class), align);
4617 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4619 *align = MONO_ABI_ALIGNOF (gpointer);
4620 return MONO_ABI_SIZEOF (gpointer);
4624 case MONO_TYPE_MVAR:
4625 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4626 *align = MONO_ABI_ALIGNOF (gpointer);
4627 return MONO_ABI_SIZEOF (gpointer);
4629 /* The gparam can only match types given by gshared_constraint */
4630 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4634 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4640 * mono_type_stack_size:
4641 * @t: the type to return the size it uses on the stack
4643 * Returns: the number of bytes required to hold an instance of this
4644 * type on the runtime stack
4647 mono_type_stack_size (MonoType *t, int *align)
4649 return mono_type_stack_size_internal (t, align, FALSE);
4653 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4656 MonoTypeEnum simple_type;
4657 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4658 int stack_slot_size = MONO_ABI_SIZEOF (gpointer);
4659 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4660 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4661 int stack_slot_size = SIZEOF_REGISTER;
4662 int stack_slot_align = SIZEOF_REGISTER;
4665 g_assert (t != NULL);
4671 *align = stack_slot_align;
4672 return stack_slot_size;
4675 simple_type = t->type;
4676 switch (simple_type) {
4677 case MONO_TYPE_BOOLEAN:
4678 case MONO_TYPE_CHAR:
4687 case MONO_TYPE_STRING:
4688 case MONO_TYPE_OBJECT:
4689 case MONO_TYPE_CLASS:
4690 case MONO_TYPE_SZARRAY:
4692 case MONO_TYPE_FNPTR:
4693 case MONO_TYPE_ARRAY:
4694 *align = stack_slot_align;
4695 return stack_slot_size;
4697 case MONO_TYPE_MVAR:
4698 g_assert (allow_open);
4699 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4700 *align = stack_slot_align;
4701 return stack_slot_size;
4703 /* The gparam can only match types given by gshared_constraint */
4704 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4706 case MONO_TYPE_TYPEDBYREF:
4707 *align = stack_slot_align;
4708 return stack_slot_size * 3;
4710 *align = MONO_ABI_ALIGNOF (float);
4711 return sizeof (float);
4714 *align = MONO_ABI_ALIGNOF (gint64);
4715 return sizeof (gint64);
4717 *align = MONO_ABI_ALIGNOF (double);
4718 return sizeof (double);
4719 case MONO_TYPE_VALUETYPE: {
4722 if (t->data.klass->enumtype)
4723 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4725 size = mono_class_value_size (t->data.klass, (guint32*)align);
4727 *align = *align + stack_slot_align - 1;
4728 *align &= ~(stack_slot_align - 1);
4730 size += stack_slot_size - 1;
4731 size &= ~(stack_slot_size - 1);
4736 case MONO_TYPE_GENERICINST: {
4737 MonoGenericClass *gclass = t->data.generic_class;
4738 MonoClass *container_class = gclass->container_class;
4741 g_assert (!gclass->context.class_inst->is_open);
4743 if (container_class->valuetype) {
4744 if (container_class->enumtype)
4745 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4747 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4749 *align = *align + stack_slot_align - 1;
4750 *align &= ~(stack_slot_align - 1);
4752 size += stack_slot_size - 1;
4753 size &= ~(stack_slot_size - 1);
4758 *align = stack_slot_align;
4759 return stack_slot_size;
4763 g_error ("type 0x%02x unknown", t->type);
4769 mono_type_generic_inst_is_valuetype (MonoType *type)
4771 g_assert (type->type == MONO_TYPE_GENERICINST);
4772 return type->data.generic_class->container_class->valuetype;
4776 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4778 return gclass->container_class->valuetype;
4782 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4784 MonoGenericInst *i1 = g1->context.class_inst;
4785 MonoGenericInst *i2 = g2->context.class_inst;
4787 if (g1->is_dynamic != g2->is_dynamic)
4789 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4791 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4793 return g1->is_tb_open == g2->is_tb_open;
4797 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4799 MonoGenericInst *i1 = g1->context.class_inst;
4800 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4802 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4804 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4806 return !g1->is_tb_open;
4810 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4812 /* FIXME: check if this seed is good enough */
4813 guint hash = 0xc01dfee7;
4814 if (context->class_inst)
4815 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4816 if (context->method_inst)
4817 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4822 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4824 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4828 * mono_metadata_str_hash:
4830 * This should be used instead of g_str_hash for computing hash codes visible
4831 * outside this module, since g_str_hash () is not guaranteed to be stable
4832 * (its not the same in eglib for example).
4835 mono_metadata_str_hash (gconstpointer v1)
4837 /* Same as g_str_hash () in glib */
4838 char *p = (char *) v1;
4843 hash = (hash << 5) - hash + *p;
4850 * mono_metadata_type_hash:
4853 * Computes an hash value for @t1 to be used in GHashTable.
4854 * The returned hash is guaranteed to be the same across executions.
4857 mono_metadata_type_hash (MonoType *t1)
4859 guint hash = t1->type;
4861 hash |= t1->byref << 6; /* do not collide with t1->type values */
4863 case MONO_TYPE_VALUETYPE:
4864 case MONO_TYPE_CLASS:
4865 case MONO_TYPE_SZARRAY: {
4866 MonoClass *klass = t1->data.klass;
4868 * Dynamic classes must not be hashed on their type since it can change
4869 * during runtime. For example, if we hash a reference type that is
4870 * later made into a valuetype.
4872 * This is specially problematic with generic instances since they are
4873 * inserted in a bunch of hash tables before been finished.
4875 if (image_is_dynamic (klass->image))
4876 return (t1->byref << 6) | mono_metadata_str_hash (klass->name);
4877 return ((hash << 5) - hash) ^ mono_metadata_str_hash (klass->name);
4880 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4881 case MONO_TYPE_ARRAY:
4882 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4883 case MONO_TYPE_GENERICINST:
4884 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4886 case MONO_TYPE_MVAR:
4887 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
4894 mono_metadata_generic_param_hash (MonoGenericParam *p)
4897 MonoGenericParamInfo *info;
4899 hash = (mono_generic_param_num (p) << 2);
4900 if (p->gshared_constraint)
4901 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
4902 info = mono_generic_param_info (p);
4903 /* Can't hash on the owner klass/method, since those might not be set when this is called */
4905 hash = ((hash << 5) - hash) ^ info->token;
4910 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4914 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4916 if (p1->gshared_constraint && p2->gshared_constraint) {
4917 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
4920 if (p1->gshared_constraint != p2->gshared_constraint)
4925 * We have to compare the image as well because if we didn't,
4926 * the generic_inst_cache lookup wouldn't care about the image
4927 * of generic params, so what could happen is that a generic
4928 * inst with params from image A is put into the cache, then
4929 * image B gets that generic inst from the cache, image A is
4930 * unloaded, so the inst is deleted, but image B still retains
4933 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2))
4937 * If `signature_only' is true, we're comparing two (method) signatures.
4938 * In this case, the owner of two type parameters doesn't need to match.
4941 return signature_only;
4945 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
4947 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
4951 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4955 if (c1->generic_class && c2->generic_class)
4956 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4957 if (c1->generic_class && c2->generic_container)
4958 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4959 if (c1->generic_container && c2->generic_class)
4960 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4961 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4962 return mono_metadata_generic_param_equal_internal (
4963 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4964 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4965 return mono_metadata_generic_param_equal_internal (
4966 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4967 if (signature_only &&
4968 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4969 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4970 if (signature_only &&
4971 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
4972 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
4977 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4979 gpointer iter1 = 0, iter2 = 0;
4983 if (s1->call_convention != s2->call_convention)
4985 if (s1->sentinelpos != s2->sentinelpos)
4987 if (s1->hasthis != s2->hasthis)
4989 if (s1->explicit_this != s2->explicit_this)
4991 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4993 if (s1->param_count != s2->param_count)
4997 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4998 MonoType *t2 = mono_signature_get_params (s2, &iter2);
5000 if (t1 == NULL || t2 == NULL)
5002 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
5008 * mono_metadata_type_equal:
5011 * @signature_only: If true, treat ginsts as equal which are instantiated separately but have equal positional value
5013 * Determine if @t1 and @t2 represent the same type.
5014 * Returns: #TRUE if @t1 and @t2 are equal.
5017 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
5019 if (t1->type != t2->type || t1->byref != t2->byref)
5023 case MONO_TYPE_VOID:
5024 case MONO_TYPE_BOOLEAN:
5025 case MONO_TYPE_CHAR:
5036 case MONO_TYPE_STRING:
5039 case MONO_TYPE_OBJECT:
5040 case MONO_TYPE_TYPEDBYREF:
5042 case MONO_TYPE_VALUETYPE:
5043 case MONO_TYPE_CLASS:
5044 case MONO_TYPE_SZARRAY:
5045 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
5047 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
5048 case MONO_TYPE_ARRAY:
5049 if (t1->data.array->rank != t2->data.array->rank)
5051 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
5052 case MONO_TYPE_GENERICINST:
5053 return _mono_metadata_generic_class_equal (
5054 t1->data.generic_class, t2->data.generic_class, signature_only);
5056 return mono_metadata_generic_param_equal_internal (
5057 t1->data.generic_param, t2->data.generic_param, signature_only);
5058 case MONO_TYPE_MVAR:
5059 return mono_metadata_generic_param_equal_internal (
5060 t1->data.generic_param, t2->data.generic_param, signature_only);
5061 case MONO_TYPE_FNPTR:
5062 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
5064 g_error ("implement type compare for %0x!", t1->type);
5072 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
5074 return do_mono_metadata_type_equal (t1, t2, FALSE);
5078 * mono_metadata_type_equal_full:
5081 * @signature_only: if signature only comparison should be made
5083 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
5084 * behaves the same way as mono_metadata_type_equal.
5085 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
5086 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
5089 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
5091 return do_mono_metadata_type_equal (t1, t2, signature_only);
5095 * mono_metadata_signature_equal:
5096 * @sig1: a signature
5097 * @sig2: another signature
5099 * Determine if @sig1 and @sig2 represent the same signature, with the
5100 * same number of arguments and the same types.
5101 * Returns: #TRUE if @sig1 and @sig2 are equal.
5104 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
5108 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
5111 if (sig1->generic_param_count != sig2->generic_param_count)
5115 * We're just comparing the signatures of two methods here:
5117 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
5118 * U and V are equal here.
5120 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
5123 for (i = 0; i < sig1->param_count; i++) {
5124 MonoType *p1 = sig1->params[i];
5125 MonoType *p2 = sig2->params[i];
5127 /* if (p1->attrs != p2->attrs)
5130 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
5134 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
5140 * mono_metadata_type_dup:
5141 * @image: image to alloc memory from
5142 * @original: type to duplicate
5144 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
5147 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
5150 int sizeof_o = MONO_SIZEOF_TYPE;
5152 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
5154 r = image ? (MonoType *)mono_image_alloc0 (image, sizeof_o) : (MonoType *)g_malloc (sizeof_o);
5156 memcpy (r, o, sizeof_o);
5158 if (o->type == MONO_TYPE_PTR) {
5159 r->data.type = mono_metadata_type_dup (image, o->data.type);
5160 } else if (o->type == MONO_TYPE_ARRAY) {
5161 r->data.array = mono_dup_array_type (image, o->data.array);
5162 } else if (o->type == MONO_TYPE_FNPTR) {
5163 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
5164 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
5170 mono_signature_hash (MonoMethodSignature *sig)
5172 guint i, res = sig->ret->type;
5174 for (i = 0; i < sig->param_count; i++)
5175 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5181 * mono_metadata_encode_value:
5182 * @value: value to encode
5183 * @buf: buffer where to write the compressed representation
5184 * @endbuf: pointer updated to point at the end of the encoded output
5186 * Encodes the value @value in the compressed representation used
5187 * in metadata and stores the result in @buf. @buf needs to be big
5188 * enough to hold the data (4 bytes).
5191 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5197 else if (value < 0x4000) {
5198 p [0] = 0x80 | (value >> 8);
5199 p [1] = value & 0xff;
5202 p [0] = (value >> 24) | 0xc0;
5203 p [1] = (value >> 16) & 0xff;
5204 p [2] = (value >> 8) & 0xff;
5205 p [3] = value & 0xff;
5213 * mono_metadata_field_info:
5214 * @meta: the Image the field is defined in
5215 * @index: the index in the field table representing the field
5216 * @offset: a pointer to an integer where to store the offset that
5217 * may have been specified for the field in a FieldLayout table
5218 * @rva: a pointer to the RVA of the field data in the image that
5219 * may have been defined in a FieldRVA table
5220 * @marshal_spec: a pointer to the marshal spec that may have been
5221 * defined for the field in a FieldMarshal table.
5223 * Gather info for field @index that may have been defined in the FieldLayout,
5224 * FieldRVA and FieldMarshal tables.
5225 * Either of offset, rva and marshal_spec can be NULL if you're not interested
5229 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5230 MonoMarshalSpec **marshal_spec)
5232 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5236 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5237 MonoMarshalSpec **marshal_spec)
5239 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5243 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5244 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5246 MonoTableInfo *tdef;
5249 loc.idx = index + 1;
5250 if (meta->uncompressed_metadata)
5251 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5254 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5256 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5259 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5260 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5262 *offset = (guint32)-1;
5266 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5268 loc.col_idx = MONO_FIELD_RVA_FIELD;
5271 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5273 * LAMESPEC: There is no signature, no nothing, just the raw data.
5275 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5283 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5284 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5291 * mono_metadata_get_constant_index:
5292 * @meta: the Image the field is defined in
5293 * @index: the token that may have a row defined in the constants table
5294 * @hint: possible position for the row
5296 * @token must be a FieldDef, ParamDef or PropertyDef token.
5298 * Returns: the index into the Constants table or 0 if not found.
5301 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5303 MonoTableInfo *tdef;
5305 guint32 index = mono_metadata_token_index (token);
5307 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5308 index <<= MONO_HASCONSTANT_BITS;
5309 switch (mono_metadata_token_table (token)) {
5310 case MONO_TABLE_FIELD:
5311 index |= MONO_HASCONSTANT_FIEDDEF;
5313 case MONO_TABLE_PARAM:
5314 index |= MONO_HASCONSTANT_PARAM;
5316 case MONO_TABLE_PROPERTY:
5317 index |= MONO_HASCONSTANT_PROPERTY;
5320 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5324 loc.col_idx = MONO_CONSTANT_PARENT;
5327 /* FIXME: Index translation */
5329 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5332 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5333 return loc.result + 1;
5339 * mono_metadata_events_from_typedef:
5340 * @meta: metadata context
5341 * @index: 0-based index (in the TypeDef table) describing a type
5343 * Returns: the 0-based index in the Event table for the events in the
5344 * type. The last event that belongs to the type (plus 1) is stored
5345 * in the @end_idx pointer.
5348 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5352 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5360 loc.col_idx = MONO_EVENT_MAP_PARENT;
5361 loc.idx = index + 1;
5363 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5366 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5367 if (loc.result + 1 < tdef->rows) {
5368 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5370 end = meta->tables [MONO_TABLE_EVENT].rows;
5378 * mono_metadata_methods_from_event:
5379 * @meta: metadata context
5380 * @index: 0-based index (in the Event table) describing a event
5382 * Returns: the 0-based index in the MethodDef table for the methods in the
5383 * event. The last method that belongs to the event (plus 1) is stored
5384 * in the @end_idx pointer.
5387 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5391 guint32 cols [MONO_METHOD_SEMA_SIZE];
5392 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5398 if (meta->uncompressed_metadata)
5399 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5402 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5403 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5405 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5410 * We may end up in the middle of the rows...
5413 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5419 while (end < msemt->rows) {
5420 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5421 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5430 * mono_metadata_properties_from_typedef:
5431 * @meta: metadata context
5432 * @index: 0-based index (in the TypeDef table) describing a type
5434 * Returns: the 0-based index in the Property table for the properties in the
5435 * type. The last property that belongs to the type (plus 1) is stored
5436 * in the @end_idx pointer.
5439 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5443 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5451 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5452 loc.idx = index + 1;
5454 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5457 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5458 if (loc.result + 1 < tdef->rows) {
5459 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5461 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5469 * mono_metadata_methods_from_property:
5470 * @meta: metadata context
5471 * @index: 0-based index (in the PropertyDef table) describing a property
5473 * Returns: the 0-based index in the MethodDef table for the methods in the
5474 * property. The last method that belongs to the property (plus 1) is stored
5475 * in the @end_idx pointer.
5478 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5482 guint32 cols [MONO_METHOD_SEMA_SIZE];
5483 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5489 if (meta->uncompressed_metadata)
5490 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5493 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5494 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5496 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5501 * We may end up in the middle of the rows...
5504 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5510 while (end < msemt->rows) {
5511 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5512 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5521 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5524 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5529 /* No index translation seems to be needed */
5532 loc.col_idx = MONO_IMPLMAP_MEMBER;
5533 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5535 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5538 return loc.result + 1;
5542 * @image: context where the image is created
5543 * @type_spec: typespec token
5544 * @deprecated use mono_type_create_from_typespec_checked that has proper error handling
5546 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5550 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5553 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5555 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5560 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5563 guint32 idx = mono_metadata_token_index (type_spec);
5565 guint32 cols [MONO_TYPESPEC_SIZE];
5567 MonoType *type, *type2;
5569 mono_error_init (error);
5571 mono_image_lock (image);
5572 type = (MonoType *)g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5573 mono_image_unlock (image);
5577 t = &image->tables [MONO_TABLE_TYPESPEC];
5579 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5580 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5582 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5583 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5587 mono_metadata_decode_value (ptr, &ptr);
5589 type = mono_metadata_parse_type_checked (image, NULL, 0, TRUE, ptr, &ptr, error);
5593 type2 = mono_metadata_type_dup (image, type);
5594 mono_metadata_free_type (type);
5596 mono_image_lock (image);
5597 type = (MonoType *)g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5598 /* We might leak some data in the image mempool if found */
5600 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5603 mono_image_unlock (image);
5610 mono_image_strndup (MonoImage *image, const char *data, guint len)
5614 return g_strndup (data, len);
5615 res = (char *)mono_image_alloc (image, len + 1);
5616 memcpy (res, data, len);
5622 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5624 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5628 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5629 * PARENT_IMAGE is the image containing the marshal spec.
5632 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5634 MonoMarshalSpec *res;
5636 const char *start = ptr;
5638 /* fixme: this is incomplete, but I cant find more infos in the specs */
5641 res = (MonoMarshalSpec *)mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5643 res = g_new0 (MonoMarshalSpec, 1);
5645 len = mono_metadata_decode_value (ptr, &ptr);
5646 res->native = (MonoMarshalNative)*ptr++;
5648 if (res->native == MONO_NATIVE_LPARRAY) {
5649 res->data.array_data.param_num = -1;
5650 res->data.array_data.num_elem = -1;
5651 res->data.array_data.elem_mult = -1;
5653 if (ptr - start <= len)
5654 res->data.array_data.elem_type = (MonoMarshalNative)*ptr++;
5655 if (ptr - start <= len)
5656 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5657 if (ptr - start <= len)
5658 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5659 if (ptr - start <= len) {
5661 * LAMESPEC: Older spec versions say this parameter comes before
5662 * num_elem. Never spec versions don't talk about elem_mult at
5663 * all, but csc still emits it, and it is used to distinguish
5664 * between param_num being 0, and param_num being omitted.
5665 * So if (param_num == 0) && (num_elem > 0), then
5666 * elem_mult == 0 -> the array size is num_elem
5667 * elem_mult == 1 -> the array size is @param_num + num_elem
5669 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5673 if (res->native == MONO_NATIVE_BYVALTSTR) {
5674 if (ptr - start <= len)
5675 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5678 if (res->native == MONO_NATIVE_BYVALARRAY) {
5679 if (ptr - start <= len)
5680 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5683 if (res->native == MONO_NATIVE_CUSTOM) {
5684 /* skip unused type guid */
5685 len = mono_metadata_decode_value (ptr, &ptr);
5687 /* skip unused native type name */
5688 len = mono_metadata_decode_value (ptr, &ptr);
5690 /* read custom marshaler type name */
5691 len = mono_metadata_decode_value (ptr, &ptr);
5692 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5694 /* read cookie string */
5695 len = mono_metadata_decode_value (ptr, &ptr);
5696 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5697 res->data.custom_data.image = parent_image;
5700 if (res->native == MONO_NATIVE_SAFEARRAY) {
5701 res->data.safearray_data.elem_type = (MonoMarshalVariant)0;
5702 res->data.safearray_data.num_elem = 0;
5703 if (ptr - start <= len)
5704 res->data.safearray_data.elem_type = (MonoMarshalVariant)*ptr++;
5705 if (ptr - start <= len)
5706 res->data.safearray_data.num_elem = *ptr++;
5712 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5714 if (spec->native == MONO_NATIVE_CUSTOM) {
5715 g_free (spec->data.custom_data.custom_name);
5716 g_free (spec->data.custom_data.cookie);
5722 * mono_type_to_unmanaged:
5724 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5725 * describing the underlying native reprensetation of the type.
5727 * In addition the value pointed by
5728 * "conv" will contain the kind of marshalling required for this
5729 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5732 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5733 gboolean unicode, MonoMarshalConv *conv)
5735 MonoMarshalConv dummy_conv;
5741 *conv = MONO_MARSHAL_CONV_NONE;
5744 return MONO_NATIVE_UINT;
5748 case MONO_TYPE_BOOLEAN:
5750 switch (mspec->native) {
5751 case MONO_NATIVE_VARIANTBOOL:
5752 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5753 return MONO_NATIVE_VARIANTBOOL;
5754 case MONO_NATIVE_BOOLEAN:
5755 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5756 return MONO_NATIVE_BOOLEAN;
5757 case MONO_NATIVE_I1:
5758 case MONO_NATIVE_U1:
5759 return mspec->native;
5761 g_error ("cant marshal bool to native type %02x", mspec->native);
5764 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5765 return MONO_NATIVE_BOOLEAN;
5766 case MONO_TYPE_CHAR:
5768 switch (mspec->native) {
5769 case MONO_NATIVE_U2:
5770 case MONO_NATIVE_U1:
5771 return mspec->native;
5773 g_error ("cant marshal char to native type %02x", mspec->native);
5776 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5777 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5778 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5779 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5780 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5781 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5782 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5783 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5784 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5785 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5786 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5787 case MONO_TYPE_STRING:
5789 switch (mspec->native) {
5790 case MONO_NATIVE_BSTR:
5791 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5792 return MONO_NATIVE_BSTR;
5793 case MONO_NATIVE_LPSTR:
5794 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5795 return MONO_NATIVE_LPSTR;
5796 case MONO_NATIVE_LPWSTR:
5797 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5798 return MONO_NATIVE_LPWSTR;
5799 case MONO_NATIVE_LPTSTR:
5800 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5801 return MONO_NATIVE_LPTSTR;
5802 case MONO_NATIVE_ANSIBSTR:
5803 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5804 return MONO_NATIVE_ANSIBSTR;
5805 case MONO_NATIVE_TBSTR:
5806 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5807 return MONO_NATIVE_TBSTR;
5808 case MONO_NATIVE_BYVALTSTR:
5810 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5812 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5813 return MONO_NATIVE_BYVALTSTR;
5815 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);
5819 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5820 return MONO_NATIVE_LPWSTR;
5823 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5824 return MONO_NATIVE_LPSTR;
5826 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5827 case MONO_TYPE_VALUETYPE: /*FIXME*/
5828 if (type->data.klass->enumtype) {
5829 t = mono_class_enum_basetype (type->data.klass)->type;
5832 if (type->data.klass == mono_defaults.handleref_class){
5833 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5834 return MONO_NATIVE_INT;
5836 return MONO_NATIVE_STRUCT;
5837 case MONO_TYPE_SZARRAY:
5838 case MONO_TYPE_ARRAY:
5840 switch (mspec->native) {
5841 case MONO_NATIVE_BYVALARRAY:
5842 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5843 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5845 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5846 return MONO_NATIVE_BYVALARRAY;
5847 case MONO_NATIVE_SAFEARRAY:
5848 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5849 return MONO_NATIVE_SAFEARRAY;
5850 case MONO_NATIVE_LPARRAY:
5851 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5852 return MONO_NATIVE_LPARRAY;
5854 g_error ("cant marshal array as native type %02x", mspec->native);
5858 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5859 return MONO_NATIVE_LPARRAY;
5860 case MONO_TYPE_I: return MONO_NATIVE_INT;
5861 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5862 case MONO_TYPE_CLASS:
5863 case MONO_TYPE_OBJECT: {
5864 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5866 switch (mspec->native) {
5867 case MONO_NATIVE_STRUCT:
5868 return MONO_NATIVE_STRUCT;
5869 case MONO_NATIVE_CUSTOM:
5870 return MONO_NATIVE_CUSTOM;
5871 case MONO_NATIVE_INTERFACE:
5872 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5873 return MONO_NATIVE_INTERFACE;
5874 case MONO_NATIVE_IDISPATCH:
5875 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5876 return MONO_NATIVE_IDISPATCH;
5877 case MONO_NATIVE_IUNKNOWN:
5878 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5879 return MONO_NATIVE_IUNKNOWN;
5880 case MONO_NATIVE_FUNC:
5881 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5882 type->data.klass == mono_defaults.delegate_class ||
5883 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5884 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5885 return MONO_NATIVE_FUNC;
5889 g_error ("cant marshal object as native type %02x", mspec->native);
5892 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5893 type->data.klass == mono_defaults.delegate_class ||
5894 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5895 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5896 return MONO_NATIVE_FUNC;
5898 if (mono_class_try_get_safehandle_class () && type->data.klass == mono_class_try_get_safehandle_class ()){
5899 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5900 return MONO_NATIVE_INT;
5902 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5903 return MONO_NATIVE_STRUCT;
5905 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5906 case MONO_TYPE_GENERICINST:
5907 type = &type->data.generic_class->container_class->byval_arg;
5910 case MONO_TYPE_TYPEDBYREF:
5912 g_error ("type 0x%02x not handled in marshal", t);
5914 return MONO_NATIVE_MAX;
5918 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5921 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5927 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5928 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5930 /* FIXME: Index translation */
5932 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5935 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5939 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
5941 MonoMethod *result = NULL;
5942 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5944 mono_error_init (error);
5946 switch (tok & MONO_METHODDEFORREF_MASK) {
5947 case MONO_METHODDEFORREF_METHODDEF:
5948 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
5950 case MONO_METHODDEFORREF_METHODREF:
5951 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
5954 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
5961 * mono_class_get_overrides_full:
5963 * Return the method overrides belonging to class @type_token in @overrides, and
5964 * the number of overrides in @num_overrides.
5966 * Returns: TRUE on success, FALSE on failure.
5969 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5970 MonoGenericContext *generic_context)
5974 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5977 guint32 cols [MONO_METHODIMPL_SIZE];
5978 MonoMethod **result;
5989 loc.col_idx = MONO_METHODIMPL_CLASS;
5990 loc.idx = mono_metadata_token_index (type_token);
5992 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5998 * We may end up in the middle of the rows...
6001 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
6006 while (end < tdef->rows) {
6007 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
6013 result = g_new (MonoMethod*, num * 2);
6014 for (i = 0; i < num; ++i) {
6017 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
6018 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6023 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
6024 method = method_from_method_def_or_ref (
6025 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
6026 if (method == NULL) {
6027 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6030 result [i * 2] = method;
6031 method = method_from_method_def_or_ref (
6032 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
6033 if (method == NULL) {
6034 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6037 result [i * 2 + 1] = method;
6040 *overrides = result;
6042 *num_overrides = num;
6047 * mono_guid_to_string:
6049 * Converts a 16 byte Microsoft GUID to the standard string representation.
6052 mono_guid_to_string (const guint8 *guid)
6054 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
6055 guid[3], guid[2], guid[1], guid[0],
6059 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6063 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
6065 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
6066 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
6067 guint32 i, token, found;
6068 MonoClass *klass, **res;
6069 GSList *cons = NULL, *tmp;
6070 MonoGenericContext *context = &container->context;
6072 mono_error_init (error);
6074 *constraints = NULL;
6076 for (i = 0; i < tdef->rows; ++i) {
6077 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
6078 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
6079 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
6080 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
6082 g_slist_free (cons);
6085 cons = g_slist_append (cons, klass);
6088 /* contiguous list finished */
6095 res = (MonoClass **)mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
6096 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
6097 res [i] = (MonoClass *)tmp->data;
6099 g_slist_free (cons);
6105 * mono_metadata_get_generic_param_row:
6108 * @token: TypeOrMethodDef token, owner for GenericParam
6109 * @owner: coded token, set on return
6111 * Returns: 1-based row-id in the GenericParam table whose
6112 * owner is @token. 0 if not found.
6115 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
6117 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6124 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
6125 *owner = MONO_TYPEORMETHOD_TYPE;
6126 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6127 *owner = MONO_TYPEORMETHOD_METHOD;
6129 g_error ("wrong token %x to get_generic_param_row", token);
6132 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
6135 loc.col_idx = MONO_GENERICPARAM_OWNER;
6138 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6141 /* Find the first entry by searching backwards */
6142 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
6145 return loc.result + 1;
6149 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
6152 return mono_metadata_get_generic_param_row (image, token, &owner);
6156 * Memory is allocated from IMAGE's mempool.
6159 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
6160 MonoGenericContainer *container, MonoError *error)
6163 guint32 start_row, i, owner;
6164 mono_error_init (error);
6166 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6168 for (i = 0; i < container->type_argc; i++) {
6169 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6170 mono_loader_assert_no_error ();
6178 * mono_metadata_load_generic_params:
6180 * Load the type parameters from the type or method definition @token.
6182 * Use this method after parsing a type or method definition to figure out whether it's a generic
6183 * type / method. When parsing a method definition, @parent_container points to the generic container
6184 * of the current class, if any.
6186 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6187 * creating the type.
6189 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6191 * LOCKING: Acquires the loader lock
6194 MonoGenericContainer *
6195 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6197 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6198 guint32 cols [MONO_GENERICPARAM_SIZE];
6199 guint32 i, owner = 0, n;
6200 MonoGenericContainer *container;
6201 MonoGenericParamFull *params;
6202 MonoGenericContext *context;
6204 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6206 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6209 container = (MonoGenericContainer *)mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6210 container->owner.image = image; // Temporarily mark as anonymous, but this will be overriden by caller
6211 container->is_anonymous = TRUE;
6214 params = (MonoGenericParamFull *)g_realloc (params, sizeof (MonoGenericParamFull) * n);
6215 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6216 params [n - 1].param.owner = container;
6217 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6218 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6219 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6220 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6221 if (params [n - 1].param.num != n - 1)
6222 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6223 if (++i > tdef->rows)
6225 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6226 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6228 container->type_argc = n;
6229 container->type_params = (MonoGenericParamFull *)mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6230 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6232 container->parent = parent_container;
6234 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6235 container->is_method = 1;
6237 g_assert (container->parent == NULL || container->is_method);
6239 context = &container->context;
6240 if (container->is_method) {
6241 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6242 context->method_inst = mono_get_shared_generic_inst (container);
6244 context->class_inst = mono_get_shared_generic_inst (container);
6251 mono_get_shared_generic_inst (MonoGenericContainer *container)
6253 MonoType **type_argv;
6255 MonoGenericInst *nginst;
6258 type_argv = g_new0 (MonoType *, container->type_argc);
6259 helper = g_new0 (MonoType, container->type_argc);
6261 for (i = 0; i < container->type_argc; i++) {
6262 MonoType *t = &helper [i];
6264 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6265 t->data.generic_param = mono_generic_container_get_param (container, i);
6270 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6279 * mono_type_is_byref:
6280 * @type: the MonoType operated on
6282 * Returns: #TRUE if @type represents a type passed by reference,
6286 mono_type_is_byref (MonoType *type)
6292 * mono_type_get_type:
6293 * @type: the MonoType operated on
6295 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
6296 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
6299 mono_type_get_type (MonoType *type)
6305 * mono_type_get_signature:
6306 * @type: the MonoType operated on
6308 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
6310 * Returns: the MonoMethodSignature pointer that describes the signature
6311 * of the function pointer @type represents.
6313 MonoMethodSignature*
6314 mono_type_get_signature (MonoType *type)
6316 g_assert (type->type == MONO_TYPE_FNPTR);
6317 return type->data.method;
6321 * mono_type_get_class:
6322 * @type: the MonoType operated on
6324 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
6325 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
6328 * Returns: the MonoClass pointer that describes the class that @type represents.
6331 mono_type_get_class (MonoType *type)
6333 /* FIXME: review the runtime users before adding the assert here */
6334 return type->data.klass;
6338 * mono_type_get_array_type:
6339 * @type: the MonoType operated on
6341 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6343 * Returns: a MonoArrayType struct describing the array type that @type
6344 * represents. The info includes details such as rank, array element type
6345 * and the sizes and bounds of multidimensional arrays.
6348 mono_type_get_array_type (MonoType *type)
6350 return type->data.array;
6354 * mono_type_get_ptr_type:
6355 * @type: the MonoType operated on
6357 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6360 * Returns: the MonoType pointer that describes the type that @type
6361 * represents a pointer to.
6364 mono_type_get_ptr_type (MonoType *type)
6366 g_assert (type->type == MONO_TYPE_PTR);
6367 return type->data.type;
6371 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6373 /* FIXME: implement */
6378 * mono_type_is_struct:
6379 * @type: the MonoType operated on
6381 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6382 * or a basic type like System.Int32. #FALSE otherwise.
6385 mono_type_is_struct (MonoType *type)
6387 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6388 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6389 ((type->type == MONO_TYPE_GENERICINST) &&
6390 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6391 !type->data.generic_class->container_class->enumtype)));
6395 * mono_type_is_void:
6396 * @type: the MonoType operated on
6398 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6401 mono_type_is_void (MonoType *type)
6403 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6407 * mono_type_is_pointer:
6408 * @type: the MonoType operated on
6410 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6413 mono_type_is_pointer (MonoType *type)
6415 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6416 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6417 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6418 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6419 (type->type == MONO_TYPE_FNPTR)));
6423 * mono_type_is_reference:
6424 * @type: the MonoType operated on
6426 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6429 mono_type_is_reference (MonoType *type)
6431 return (type && (((type->type == MONO_TYPE_STRING) ||
6432 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6433 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6434 ((type->type == MONO_TYPE_GENERICINST) &&
6435 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6439 * mono_signature_get_return_type:
6440 * @sig: the method signature inspected
6442 * Returns: the return type of the method signature @sig
6445 mono_signature_get_return_type (MonoMethodSignature *sig)
6451 * mono_signature_get_params:
6452 * @sig: the method signature inspected
6453 * #iter: pointer to an iterator
6455 * Iterates over the parameters for the method signature @sig.
6456 * A void* pointer must be initualized to #NULL to start the iteration
6457 * and it's address is passed to this function repeteadly until it returns
6460 * Returns: the next parameter type of the method signature @sig,
6461 * #NULL when finished.
6464 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6470 /* start from the first */
6471 if (sig->param_count) {
6472 *iter = &sig->params [0];
6473 return sig->params [0];
6479 type = (MonoType **)*iter;
6481 if (type < &sig->params [sig->param_count]) {
6489 * mono_signature_get_param_count:
6490 * @sig: the method signature inspected
6492 * Returns: the number of parameters in the method signature @sig.
6495 mono_signature_get_param_count (MonoMethodSignature *sig)
6497 return sig->param_count;
6501 * mono_signature_get_call_conv:
6502 * @sig: the method signature inspected
6504 * Returns: the call convention of the method signature @sig.
6507 mono_signature_get_call_conv (MonoMethodSignature *sig)
6509 return sig->call_convention;
6513 * mono_signature_vararg_start:
6514 * @sig: the method signature inspected
6516 * Returns: the number of the first vararg parameter in the
6517 * method signature @sig. -1 if this is not a vararg signature.
6520 mono_signature_vararg_start (MonoMethodSignature *sig)
6522 return sig->sentinelpos;
6526 * mono_signature_is_instance:
6527 * @sig: the method signature inspected
6529 * Returns: #TRUE if this the method signature @sig has an implicit
6530 * first instance argument. #FALSE otherwise.
6533 mono_signature_is_instance (MonoMethodSignature *sig)
6535 return sig->hasthis;
6539 * mono_signature_param_is_out
6540 * @sig: the method signature inspected
6541 * @param_num: the 0-based index of the inspected parameter
6543 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6547 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6549 g_assert (param_num >= 0 && param_num < sig->param_count);
6550 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6554 * mono_signature_explicit_this:
6555 * @sig: the method signature inspected
6557 * Returns: #TRUE if this the method signature @sig has an explicit
6558 * instance argument. #FALSE otherwise.
6561 mono_signature_explicit_this (MonoMethodSignature *sig)
6563 return sig->explicit_this;
6566 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6568 mono_aligned_addr_hash (gconstpointer ptr)
6570 return GPOINTER_TO_UINT (ptr) >> 3;
6574 * If @field belongs to an inflated generic class, return the corresponding field of the
6575 * generic type definition class.
6578 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6583 if (!field->parent->generic_class)
6586 gtd = field->parent->generic_class->container_class;
6587 offset = field - field->parent->fields;
6588 return gtd->fields + offset;
6592 * If @event belongs to an inflated generic class, return the corresponding event of the
6593 * generic type definition class.
6596 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6601 if (!event->parent->generic_class)
6604 gtd = event->parent->generic_class->container_class;
6605 offset = event - event->parent->ext->events;
6606 return gtd->ext->events + offset;
6610 * If @property belongs to an inflated generic class, return the corresponding property of the
6611 * generic type definition class.
6614 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6619 if (!property->parent->generic_class)
6622 gtd = property->parent->generic_class->container_class;
6623 offset = property - property->parent->ext->properties;
6624 return gtd->ext->properties + offset;
6628 mono_method_get_wrapper_cache (MonoMethod *method)
6630 if (method->is_inflated) {
6631 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
6632 return &imethod->owner->wrapper_caches;
6634 return &method->klass->image->wrapper_caches;
6638 // This is support for the mempool reference tracking feature in checked-build, but lives in metadata.c due to use of static variables of this file.
6641 * mono_find_image_set_owner:
6643 * Find the imageset, if any, which a given pointer is located in the memory of.
6646 mono_find_image_set_owner (void *ptr)
6648 MonoImageSet *owner = NULL;
6655 for (i = 0; !owner && i < image_sets->len; ++i) {
6656 MonoImageSet *set = (MonoImageSet *)g_ptr_array_index (image_sets, i);
6657 if (mono_mempool_contains_addr (set->mempool, ptr))
6662 image_sets_unlock ();