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);
1362 mono_error_cleanup (&error);
1368 * mono_metadata_free_array:
1369 * @array: array description
1371 * Frees the array description returned from mono_metadata_parse_array().
1374 mono_metadata_free_array (MonoArrayType *array)
1376 g_free (array->sizes);
1377 g_free (array->lobounds);
1382 * need to add common field and param attributes combinations:
1385 * public static literal
1388 * private static literal
1390 static const MonoType
1392 /* data, attrs, type, nmods, byref, pinned */
1393 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1394 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1395 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1396 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1397 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1398 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1399 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1400 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1401 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1402 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1403 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1404 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1405 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1406 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1407 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1408 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1409 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1410 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1411 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1412 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1413 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1414 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1415 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1416 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1417 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1418 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1419 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1420 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1421 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1422 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1423 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1424 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1425 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1426 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1429 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1431 static GHashTable *type_cache = NULL;
1432 static int next_generic_inst_id = 0;
1434 /* Protected by image_sets_mutex */
1435 static MonoImageSet *mscorlib_image_set;
1436 /* Protected by image_sets_mutex */
1437 static GPtrArray *image_sets;
1438 static mono_mutex_t image_sets_mutex;
1440 static guint mono_generic_class_hash (gconstpointer data);
1443 * MonoTypes with modifies are never cached, so we never check or use that field.
1446 mono_type_hash (gconstpointer data)
1448 const MonoType *type = (const MonoType *) data;
1449 if (type->type == MONO_TYPE_GENERICINST)
1450 return mono_generic_class_hash (type->data.generic_class);
1452 return type->type | (type->byref << 8) | (type->attrs << 9);
1456 mono_type_equal (gconstpointer ka, gconstpointer kb)
1458 const MonoType *a = (const MonoType *) ka;
1459 const MonoType *b = (const MonoType *) kb;
1461 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1463 /* need other checks */
1468 mono_metadata_generic_inst_hash (gconstpointer data)
1470 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1474 for (i = 0; i < ginst->type_argc; ++i) {
1476 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1479 return hash ^ (ginst->is_open << 8);
1483 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1487 // An optimization: if the ids of two insts are the same, we know they are the same inst and don't check contents.
1488 // Furthermore, because we perform early de-duping, if the ids differ, we know the contents differ.
1489 #ifndef MONO_SMALL_CONFIG // Optimization does not work in MONO_SMALL_CONFIG: There are no IDs
1490 if (a->id && b->id) { // "id 0" means "object has no id"-- de-duping hasn't been performed yet, must check contents.
1493 // In signature-comparison mode id equality implies object equality, but this is not true for inequality.
1494 // Two separate objects could have signature-equavalent contents.
1495 if (!signature_only)
1500 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1502 for (i = 0; i < a->type_argc; ++i) {
1503 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1510 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1512 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1513 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1515 return mono_generic_inst_equal_full (a, b, FALSE);
1519 mono_generic_class_hash (gconstpointer data)
1521 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1522 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1525 hash += gclass->is_tb_open;
1526 hash += mono_metadata_generic_context_hash (&gclass->context);
1532 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1534 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1535 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1537 return _mono_metadata_generic_class_equal (a, b, FALSE);
1541 * mono_metadata_init:
1543 * Initialize the global variables of this module.
1544 * This is a Mono runtime internal function.
1547 mono_metadata_init (void)
1551 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1553 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1554 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1556 mono_os_mutex_init_recursive (&image_sets_mutex);
1560 * mono_metadata_cleanup:
1562 * Free all resources used by this module.
1563 * This is a Mono runtime internal function.
1566 mono_metadata_cleanup (void)
1568 g_hash_table_destroy (type_cache);
1570 g_ptr_array_free (image_sets, TRUE);
1572 mono_os_mutex_destroy (&image_sets_mutex);
1576 * mono_metadata_parse_type:
1577 * @m: metadata context
1578 * @mode: king of type that may be found at @ptr
1579 * @opt_attrs: optional attributes to store in the returned type
1580 * @ptr: pointer to the type representation
1581 * @rptr: pointer updated to match the end of the decoded stream
1582 * @transient: whenever to allocate the result from the heap or from a mempool
1584 * Decode a compressed type description found at @ptr in @m.
1585 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1586 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1587 * This function can be used to decode type descriptions in method signatures,
1588 * field signatures, locals signatures etc.
1590 * To parse a generic type, `generic_container' points to the current class'es
1591 * (the `generic_container' field in the MonoClass) or the current generic method's
1592 * (stored in image->property_hash) generic container.
1593 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1594 * this MonoGenericContainer.
1596 * LOCKING: Acquires the loader lock.
1598 * Returns: a #MonoType structure representing the decoded type.
1601 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container,
1602 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1604 MonoType *type, *cached;
1606 gboolean byref = FALSE;
1607 gboolean pinned = FALSE;
1608 const char *tmp_ptr;
1609 int count = 0; // Number of mod arguments
1612 mono_error_init (error);
1615 * According to the spec, custom modifiers should come before the byref
1616 * flag, but the IL produced by ilasm from the following signature:
1617 * object modopt(...) &
1618 * starts with a byref flag, followed by the modifiers. (bug #49802)
1619 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1620 * it would be better to treat byref as real type constructor instead of
1622 * Also, pinned should come before anything else, but some MSV++ produced
1623 * assemblies violate this (#bug 61990).
1626 /* Count the modifiers first */
1631 case MONO_TYPE_PINNED:
1632 case MONO_TYPE_BYREF:
1635 case MONO_TYPE_CMOD_REQD:
1636 case MONO_TYPE_CMOD_OPT:
1638 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1645 if (count) { // There are mods, so the MonoType will be of nonstandard size.
1648 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1649 type = transient ? (MonoType *)g_malloc0 (size) : (MonoType *)mono_image_alloc0 (m, size);
1650 type->num_mods = count;
1652 mono_error_set_bad_image (error, m, "Invalid type with more than 64 modifiers");
1655 } else { // The type is of standard size, so we can allocate it on the stack.
1657 memset (type, 0, MONO_SIZEOF_TYPE);
1660 /* Iterate again, but now parse pinned, byref and custom modifiers */
1665 case MONO_TYPE_PINNED:
1669 case MONO_TYPE_BYREF:
1673 case MONO_TYPE_CMOD_REQD:
1674 case MONO_TYPE_CMOD_OPT:
1675 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1683 type->attrs = opt_attrs;
1684 type->byref = byref;
1685 type->pinned = pinned ? 1 : 0;
1687 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr, error))
1693 // Possibly we can return an already-allocated type instead of the one we decoded
1694 if (!type->num_mods && !transient) {
1695 /* no need to free type here, because it is on the stack */
1696 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1697 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1699 /* Consider the case:
1701 class Foo<T> { class Bar {} }
1702 class Test : Foo<Test>.Bar {}
1704 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1705 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1707 We ensure that the MonoClass is in a state that we can canonicalize to:
1709 klass->byval_arg.data.klass == klass
1710 klass->this_arg.data.klass == klass
1712 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1714 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1715 of a MonoClass which currently holds the loader lock. 'type' is local.
1717 if (ret->data.klass == type->data.klass) {
1721 /* No need to use locking since nobody is modifying the hash table */
1722 if ((cached = (MonoType *)g_hash_table_lookup (type_cache, type))) {
1727 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1729 if (type == &stype) { // Type was allocated on the stack, so we need to copy it to safety
1730 type = transient ? (MonoType *)g_malloc (MONO_SIZEOF_TYPE) : (MonoType *)mono_image_alloc (m, MONO_SIZEOF_TYPE);
1731 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1738 mono_metadata_parse_type_checked (MonoImage *m, MonoGenericContainer *container,
1739 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1741 return mono_metadata_parse_type_internal (m, container, opt_attrs, transient, ptr, rptr, error);
1745 * LOCKING: Acquires the loader lock.
1748 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1749 const char *ptr, const char **rptr)
1752 MonoType * type = mono_metadata_parse_type_internal (m, NULL, opt_attrs, FALSE, ptr, rptr, &error);
1753 mono_error_cleanup (&error);
1758 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1760 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1761 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1762 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1764 if (def < methodt->rows)
1765 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1767 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1769 for (i = param_index; i < lastp; ++i) {
1770 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1779 * mono_metadata_get_param_attrs:
1781 * @m The image to loader parameter attributes from
1782 * @def method def token (one based)
1783 * @param_count number of params to decode including the return value
1785 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1786 * returned memory needs to be freed by the caller. If all the param attributes are
1787 * 0, then NULL is returned.
1790 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1792 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1793 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1794 guint32 cols [MONO_PARAM_SIZE];
1795 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1798 if (def < methodt->rows)
1799 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1801 lastp = paramt->rows + 1;
1803 for (i = param_index; i < lastp; ++i) {
1804 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1805 if (cols [MONO_PARAM_FLAGS]) {
1807 pattrs = g_new0 (int, param_count);
1808 /* at runtime we just ignore this kind of malformed file:
1809 * the verifier can signal the error to the user
1811 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1813 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1822 * mono_metadata_parse_signature:
1823 * @image: metadata context
1824 * @toke: metadata token
1826 * Decode a method signature stored in the STANDALONESIG table
1828 * Returns: a MonoMethodSignature describing the signature.
1830 MonoMethodSignature*
1831 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1834 MonoMethodSignature *ret;
1835 MonoTableInfo *tables = image->tables;
1836 guint32 idx = mono_metadata_token_index (token);
1840 if (image_is_dynamic (image)) {
1841 ret = (MonoMethodSignature *)mono_lookup_dynamic_token (image, token, NULL, &error);
1842 mono_error_raise_exception (&error); /* FIXME don't raise here */
1846 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1848 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1850 ptr = mono_metadata_blob_heap (image, sig);
1851 mono_metadata_decode_blob_size (ptr, &ptr);
1853 ret = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, &error);
1854 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1859 * mono_metadata_signature_alloc:
1860 * @image: metadata context
1861 * @nparmas: number of parameters in the signature
1863 * Allocate a MonoMethodSignature structure with the specified number of params.
1864 * The return type and the params types need to be filled later.
1865 * This is a Mono runtime internal function.
1867 * LOCKING: Assumes the loader lock is held.
1869 * Returns: the new MonoMethodSignature structure.
1871 MonoMethodSignature*
1872 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1874 MonoMethodSignature *sig;
1876 sig = (MonoMethodSignature *)mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1877 sig->param_count = nparams;
1878 sig->sentinelpos = -1;
1883 static MonoMethodSignature*
1884 mono_metadata_signature_dup_internal_with_padding (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig, size_t padding)
1886 int sigsize, sig_header_size;
1887 MonoMethodSignature *ret;
1888 sigsize = sig_header_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *) + padding;
1890 sigsize += MONO_SIZEOF_TYPE;
1893 ret = (MonoMethodSignature *)mono_image_alloc (image, sigsize);
1895 ret = (MonoMethodSignature *)mono_mempool_alloc (mp, sigsize);
1897 ret = (MonoMethodSignature *)g_malloc (sigsize);
1900 memcpy (ret, sig, sig_header_size - padding);
1902 // Copy return value because of ownership semantics.
1904 // Danger! Do not alter padding use without changing the dup_add_this below
1905 intptr_t end_of_header = (intptr_t)( (char*)(ret) + sig_header_size);
1906 ret->ret = (MonoType *)end_of_header;
1907 memcpy (ret->ret, sig->ret, MONO_SIZEOF_TYPE);
1913 static MonoMethodSignature*
1914 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1916 return mono_metadata_signature_dup_internal_with_padding (image, mp, sig, 0);
1919 * signature_dup_add_this:
1921 * Make a copy of @sig, adding an explicit this argument.
1923 MonoMethodSignature*
1924 mono_metadata_signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
1926 MonoMethodSignature *ret;
1927 ret = mono_metadata_signature_dup_internal_with_padding (image, NULL, sig, sizeof (MonoType *));
1929 ret->param_count = sig->param_count + 1;
1930 ret->hasthis = FALSE;
1932 for (int i = sig->param_count - 1; i >= 0; i --)
1933 ret->params [i + 1] = sig->params [i];
1934 ret->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
1936 for (int i = sig->param_count - 1; i >= 0; i --)
1937 g_assert(ret->params [i + 1]->type == sig->params [i]->type && ret->params [i+1]->type != MONO_TYPE_END);
1938 g_assert (ret->ret->type == sig->ret->type && ret->ret->type != MONO_TYPE_END);
1945 MonoMethodSignature*
1946 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1948 MonoMethodSignature *ret = mono_metadata_signature_dup_internal (image, NULL, sig);
1950 for (int i = 0 ; i < sig->param_count; i ++)
1951 g_assert(ret->params [i]->type == sig->params [i]->type);
1952 g_assert (ret->ret->type == sig->ret->type);
1957 /*The mempool is accessed without synchronization*/
1958 MonoMethodSignature*
1959 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1961 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1965 * mono_metadata_signature_dup:
1966 * @sig: method signature
1968 * Duplicate an existing MonoMethodSignature so it can be modified.
1969 * This is a Mono runtime internal function.
1971 * Returns: the new MonoMethodSignature structure.
1973 MonoMethodSignature*
1974 mono_metadata_signature_dup (MonoMethodSignature *sig)
1976 return mono_metadata_signature_dup_full (NULL, sig);
1980 * mono_metadata_signature_size:
1982 * Return the amount of memory allocated to SIG.
1985 mono_metadata_signature_size (MonoMethodSignature *sig)
1987 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1991 * mono_metadata_parse_method_signature:
1992 * @m: metadata context
1993 * @generic_container: generics container
1994 * @def: the MethodDef index or 0 for Ref signatures.
1995 * @ptr: pointer to the signature metadata representation
1996 * @rptr: pointer updated to match the end of the decoded stream
1998 * Decode a method signature stored at @ptr.
1999 * This is a Mono runtime internal function.
2001 * LOCKING: Assumes the loader lock is held.
2003 * Returns: a MonoMethodSignature describing the signature.
2005 MonoMethodSignature *
2006 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
2007 int def, const char *ptr, const char **rptr, MonoError *error)
2009 MonoMethodSignature *method;
2010 int i, *pattrs = NULL;
2011 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
2012 guint32 gen_param_count = 0;
2013 gboolean is_open = FALSE;
2015 mono_error_init (error);
2018 gen_param_count = 1;
2023 call_convention = *ptr & 0x0F;
2025 if (gen_param_count)
2026 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
2027 param_count = mono_metadata_decode_value (ptr, &ptr);
2030 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 */
2032 method = mono_metadata_signature_alloc (m, param_count);
2033 method->hasthis = hasthis;
2034 method->explicit_this = explicit_this;
2035 method->call_convention = call_convention;
2036 method->generic_param_count = gen_param_count;
2038 if (call_convention != 0xa) {
2039 method->ret = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [0] : 0, FALSE, ptr, &ptr, error);
2041 mono_metadata_free_method_signature (method);
2045 is_open = mono_class_is_open_constructed_type (method->ret);
2048 for (i = 0; i < method->param_count; ++i) {
2049 if (*ptr == MONO_TYPE_SENTINEL) {
2050 if (method->call_convention != MONO_CALL_VARARG || def) {
2051 mono_loader_assert_no_error ();
2052 mono_error_set_bad_image (error, m, "Found sentinel for methoddef or no vararg");
2056 if (method->sentinelpos >= 0) {
2057 mono_loader_assert_no_error ();
2058 mono_error_set_bad_image (error, m, "Found sentinel twice in the same signature.");
2062 method->sentinelpos = i;
2065 method->params [i] = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [i+1] : 0, FALSE, ptr, &ptr, error);
2066 if (!method->params [i]) {
2067 mono_metadata_free_method_signature (method);
2072 is_open = mono_class_is_open_constructed_type (method->params [i]);
2075 /* The sentinel could be missing if the caller does not pass any additional arguments */
2076 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
2077 method->sentinelpos = method->param_count;
2079 method->has_type_parameters = is_open;
2081 if (def && (method->call_convention == MONO_CALL_VARARG))
2082 method->sentinelpos = method->param_count;
2089 * Add signature to a cache and increase ref count...
2092 mono_loader_assert_no_error ();
2097 * mono_metadata_parse_method_signature:
2098 * @m: metadata context
2099 * @def: the MethodDef index or 0 for Ref signatures.
2100 * @ptr: pointer to the signature metadata representation
2101 * @rptr: pointer updated to match the end of the decoded stream
2103 * Decode a method signature stored at @ptr.
2104 * This is a Mono runtime internal function.
2106 * LOCKING: Assumes the loader lock is held.
2108 * Returns: a MonoMethodSignature describing the signature.
2110 MonoMethodSignature *
2111 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
2114 * This function MUST NOT be called by runtime code as it does error handling incorrectly.
2115 * Use mono_metadata_parse_method_signature_full instead.
2116 * It's ok to asser on failure as we no longer use it.
2119 MonoMethodSignature *ret;
2120 ret = mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr, &error);
2121 g_assert (mono_error_ok (&error));
2127 * mono_metadata_free_method_signature:
2128 * @sig: signature to destroy
2130 * Free the memory allocated in the signature @sig.
2131 * This method needs to be robust and work also on partially-built
2132 * signatures, so it does extra checks.
2135 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2137 /* Everything is allocated from mempools */
2141 mono_metadata_free_type (sig->ret);
2142 for (i = 0; i < sig->param_count; ++i) {
2143 if (sig->params [i])
2144 mono_metadata_free_type (sig->params [i]);
2150 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2154 /* Allocated in inflate_generic_signature () */
2156 mono_metadata_free_type (sig->ret);
2157 for (i = 0; i < sig->param_count; ++i) {
2158 if (sig->params [i])
2159 mono_metadata_free_type (sig->params [i]);
2165 inflated_method_equal (gconstpointer a, gconstpointer b)
2167 const MonoMethodInflated *ma = (const MonoMethodInflated *)a;
2168 const MonoMethodInflated *mb = (const MonoMethodInflated *)b;
2169 if (ma->declaring != mb->declaring)
2171 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2175 inflated_method_hash (gconstpointer a)
2177 const MonoMethodInflated *ma = (const MonoMethodInflated *)a;
2178 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring));
2182 inflated_signature_equal (gconstpointer a, gconstpointer b)
2184 const MonoInflatedMethodSignature *sig1 = (const MonoInflatedMethodSignature *)a;
2185 const MonoInflatedMethodSignature *sig2 = (const MonoInflatedMethodSignature *)b;
2187 /* sig->sig is assumed to be canonized */
2188 if (sig1->sig != sig2->sig)
2190 /* The generic instances are canonized */
2191 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2195 inflated_signature_hash (gconstpointer a)
2197 const MonoInflatedMethodSignature *sig = (const MonoInflatedMethodSignature *)a;
2199 /* sig->sig is assumed to be canonized */
2200 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2204 dump_ginst (MonoGenericInst *ginst)
2209 g_print ("Ginst: <");
2210 for (i = 0; i < ginst->type_argc; ++i) {
2213 name = mono_type_get_name (ginst->type_argv [i]);
2214 g_print ("%s", name);
2220 static gboolean type_in_image (MonoType *type, MonoImage *image);
2223 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2225 gpointer iter = NULL;
2228 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2229 if (type_in_image (p, image))
2232 return type_in_image (mono_signature_get_return_type (sig), image);
2236 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2240 for (i = 0; i < ginst->type_argc; ++i) {
2241 if (type_in_image (ginst->type_argv [i], image))
2249 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2251 return gclass->container_class->image == image ||
2252 ginst_in_image (gclass->context.class_inst, image);
2256 type_in_image (MonoType *type, MonoImage *image)
2259 switch (type->type) {
2260 case MONO_TYPE_GENERICINST:
2261 return gclass_in_image (type->data.generic_class, image);
2263 type = type->data.type;
2265 case MONO_TYPE_SZARRAY:
2266 type = &type->data.klass->byval_arg;
2268 case MONO_TYPE_ARRAY:
2269 type = &type->data.array->eklass->byval_arg;
2271 case MONO_TYPE_FNPTR:
2272 return signature_in_image (type->data.method, image);
2274 case MONO_TYPE_MVAR:
2275 return image == get_image_for_generic_param (type->data.generic_param);
2277 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2278 return image == mono_class_from_mono_type (type)->image;
2283 image_sets_lock (void)
2285 mono_os_mutex_lock (&image_sets_mutex);
2289 image_sets_unlock (void)
2291 mono_os_mutex_unlock (&image_sets_mutex);
2297 * Return a MonoImageSet representing the set of images in IMAGES.
2299 static MonoImageSet*
2300 get_image_set (MonoImage **images, int nimages)
2306 /* Common case: Image set contains corlib only. If we've seen that case before, we cached the set. */
2307 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2308 return mscorlib_image_set;
2310 /* Happens with empty generic instances */
2311 // 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.
2313 return mscorlib_image_set;
2318 image_sets = g_ptr_array_new ();
2320 // Before we go on, we should check to see whether a MonoImageSet with these images already exists.
2321 // We can search the referred-by imagesets of any one of our images to do this. Arbitrarily pick one here:
2322 if (images [0] == mono_defaults.corlib && nimages > 1)
2323 l = images [1]->image_sets; // Prefer not to search the imagesets of corlib-- that will be a long list.
2325 l = images [0]->image_sets;
2328 while (l) // Iterate over selected list, looking for an imageset with members equal to our target one
2330 set = (MonoImageSet *)l->data;
2332 if (set->nimages == nimages) { // Member count differs, this can't be it
2333 // Compare all members to all members-- order might be different
2334 for (j = 0; j < nimages; ++j) {
2335 for (k = 0; k < nimages; ++k)
2336 if (set->images [k] == images [j])
2337 break; // Break on match
2339 // If we iterated all the way through set->images, images[j] was *not* found.
2341 break; // Break on "image not found"
2344 // If we iterated all the way through images without breaking, all items in images were found in set->images
2346 break; // Break on "found a set with equal members"
2352 // If we iterated all the way through l without breaking, the imageset does not already exist and we shuold create it
2354 set = g_new0 (MonoImageSet, 1);
2355 set->nimages = nimages;
2356 set->images = g_new0 (MonoImage*, nimages);
2357 mono_os_mutex_init_recursive (&set->lock);
2358 for (i = 0; i < nimages; ++i)
2359 set->images [i] = images [i];
2360 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2361 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2362 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2363 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2365 for (i = 0; i < nimages; ++i)
2366 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2368 g_ptr_array_add (image_sets, set);
2371 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2372 mono_memory_barrier ();
2373 mscorlib_image_set = set;
2376 image_sets_unlock ();
2382 delete_image_set (MonoImageSet *set)
2386 g_hash_table_destroy (set->gclass_cache);
2387 g_hash_table_destroy (set->ginst_cache);
2388 g_hash_table_destroy (set->gmethod_cache);
2389 g_hash_table_destroy (set->gsignature_cache);
2391 mono_wrapper_caches_free (&set->wrapper_caches);
2395 for (i = 0; i < set->nimages; ++i)
2396 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2398 g_ptr_array_remove (image_sets, set);
2400 image_sets_unlock ();
2403 mono_mempool_destroy (set->mempool);
2404 g_free (set->images);
2405 mono_os_mutex_destroy (&set->lock);
2410 mono_image_set_lock (MonoImageSet *set)
2412 mono_os_mutex_lock (&set->lock);
2416 mono_image_set_unlock (MonoImageSet *set)
2418 mono_os_mutex_unlock (&set->lock);
2422 mono_image_set_alloc (MonoImageSet *set, guint size)
2426 mono_image_set_lock (set);
2428 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2429 res = mono_mempool_alloc (set->mempool, size);
2430 mono_image_set_unlock (set);
2436 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2440 mono_image_set_lock (set);
2442 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2443 res = mono_mempool_alloc0 (set->mempool, size);
2444 mono_image_set_unlock (set);
2450 mono_image_set_strdup (MonoImageSet *set, const char *s)
2454 mono_image_set_lock (set);
2456 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2457 res = mono_mempool_strdup (set->mempool, s);
2458 mono_image_set_unlock (set);
2463 // Get a descriptive string for a MonoImageSet
2464 // Callers are obligated to free buffer with g_free after use
2466 mono_image_set_description (MonoImageSet *set)
2468 GString *result = g_string_new (NULL);
2470 g_string_append (result, "[");
2471 for (img = 0; img < set->nimages; img++)
2474 g_string_append (result, ", ");
2475 g_string_append (result, set->images[img]->name);
2477 g_string_append (result, "]");
2478 return g_string_free (result, FALSE);
2482 * Structure used by the collect_..._images functions to store the image list.
2485 MonoImage *image_buf [64];
2487 int nimages, images_len;
2491 collect_data_init (CollectData *data)
2493 data->images = data->image_buf;
2494 data->images_len = 64;
2499 collect_data_free (CollectData *data)
2501 if (data->images != data->image_buf)
2502 g_free (data->images);
2506 enlarge_data (CollectData *data)
2508 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2509 MonoImage **d = g_new (MonoImage *, new_len);
2512 g_assert_not_reached ();
2513 memcpy (d, data->images, data->images_len);
2514 if (data->images != data->image_buf)
2515 g_free (data->images);
2517 data->images_len = new_len;
2521 add_image (MonoImage *image, CollectData *data)
2525 /* The arrays are small, so use a linear search instead of a hash table */
2526 for (i = 0; i < data->nimages; ++i)
2527 if (data->images [i] == image)
2530 if (data->nimages == data->images_len)
2531 enlarge_data (data);
2533 data->images [data->nimages ++] = image;
2537 collect_type_images (MonoType *type, CollectData *data);
2540 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2544 for (i = 0; i < ginst->type_argc; ++i) {
2545 collect_type_images (ginst->type_argv [i], data);
2550 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2552 add_image (gclass->container_class->image, data);
2553 if (gclass->context.class_inst)
2554 collect_ginst_images (gclass->context.class_inst, data);
2558 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2560 gpointer iter = NULL;
2563 collect_type_images (mono_signature_get_return_type (sig), data);
2564 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2565 collect_type_images (p, data);
2569 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2571 collect_signature_images (sig->sig, data);
2572 if (sig->context.class_inst)
2573 collect_ginst_images (sig->context.class_inst, data);
2574 if (sig->context.method_inst)
2575 collect_ginst_images (sig->context.method_inst, data);
2579 collect_method_images (MonoMethodInflated *method, CollectData *data)
2581 MonoMethod *m = method->declaring;
2583 add_image (method->declaring->klass->image, data);
2584 if (method->context.class_inst)
2585 collect_ginst_images (method->context.class_inst, data);
2586 if (method->context.method_inst)
2587 collect_ginst_images (method->context.method_inst, data);
2589 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2591 if (image_is_dynamic (m->klass->image))
2592 collect_signature_images (mono_method_signature (m), data);
2596 collect_type_images (MonoType *type, CollectData *data)
2599 switch (type->type) {
2600 case MONO_TYPE_GENERICINST:
2601 collect_gclass_images (type->data.generic_class, data);
2604 type = type->data.type;
2606 case MONO_TYPE_SZARRAY:
2607 type = &type->data.klass->byval_arg;
2609 case MONO_TYPE_ARRAY:
2610 type = &type->data.array->eklass->byval_arg;
2612 case MONO_TYPE_FNPTR:
2613 //return signature_in_image (type->data.method, image);
2614 g_assert_not_reached ();
2616 case MONO_TYPE_MVAR:
2618 MonoImage *image = get_image_for_generic_param (type->data.generic_param);
2619 add_image (image, data);
2622 case MONO_TYPE_CLASS:
2623 case MONO_TYPE_VALUETYPE:
2624 add_image (mono_class_from_mono_type (type)->image, data);
2627 add_image (mono_defaults.corlib, data);
2634 } CleanForImageUserData;
2637 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2639 MonoGenericClass *gclass = (MonoGenericClass *)key;
2640 CleanForImageUserData *user_data = (CleanForImageUserData *)data;
2642 g_assert (gclass_in_image (gclass, user_data->image));
2644 user_data->list = g_slist_prepend (user_data->list, gclass);
2649 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2651 MonoGenericInst *ginst = (MonoGenericInst *)key;
2652 CleanForImageUserData *user_data = (CleanForImageUserData *)data;
2654 // This doesn't work during corlib compilation
2655 //g_assert (ginst_in_image (ginst, user_data->image));
2657 user_data->list = g_slist_prepend (user_data->list, ginst);
2662 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2664 MonoImage *image = (MonoImage *)data;
2665 MonoMethodInflated *method = (MonoMethodInflated *)key;
2668 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2669 g_assert (method->declaring->klass->image == image ||
2670 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2671 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2677 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2679 MonoImage *image = (MonoImage *)data;
2680 MonoInflatedMethodSignature *sig = (MonoInflatedMethodSignature *)key;
2682 return signature_in_image (sig->sig, image) ||
2683 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2684 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2688 check_gmethod (gpointer key, gpointer value, gpointer data)
2690 MonoMethodInflated *method = (MonoMethodInflated *)key;
2691 MonoImage *image = (MonoImage *)data;
2693 if (method->context.class_inst)
2694 g_assert (!ginst_in_image (method->context.class_inst, image));
2695 if (method->context.method_inst)
2696 g_assert (!ginst_in_image (method->context.method_inst, image));
2697 if (((MonoMethod*)method)->signature)
2698 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2704 * Run a consistency check on the image set data structures.
2706 static G_GNUC_UNUSED void
2707 check_image_sets (MonoImage *image)
2710 GSList *l = image->image_sets;
2715 for (i = 0; i < image_sets->len; ++i) {
2716 MonoImageSet *set = (MonoImageSet *)g_ptr_array_index (image_sets, i);
2718 if (!g_slist_find (l, set)) {
2719 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2725 mono_metadata_clean_for_image (MonoImage *image)
2727 CleanForImageUserData ginst_data, gclass_data;
2728 GSList *l, *set_list;
2730 //check_image_sets (image);
2733 * The data structures could reference each other so we delete them in two phases.
2734 * This is required because of the hashing functions in gclass/ginst_cache.
2736 ginst_data.image = gclass_data.image = image;
2737 ginst_data.list = gclass_data.list = NULL;
2739 /* Collect the items to delete */
2740 /* delete_image_set () modifies the lists so make a copy */
2741 for (l = image->image_sets; l; l = l->next) {
2742 MonoImageSet *set = (MonoImageSet *)l->data;
2744 mono_image_set_lock (set);
2745 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2746 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2747 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2748 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2749 mono_image_set_unlock (set);
2752 /* Delete the removed items */
2753 for (l = ginst_data.list; l; l = l->next)
2754 free_generic_inst ((MonoGenericInst *)l->data);
2755 for (l = gclass_data.list; l; l = l->next)
2756 free_generic_class ((MonoGenericClass *)l->data);
2757 g_slist_free (ginst_data.list);
2758 g_slist_free (gclass_data.list);
2759 /* delete_image_set () modifies the lists so make a copy */
2760 set_list = g_slist_copy (image->image_sets);
2761 for (l = set_list; l; l = l->next) {
2762 MonoImageSet *set = (MonoImageSet *)l->data;
2764 delete_image_set (set);
2766 g_slist_free (set_list);
2770 free_inflated_method (MonoMethodInflated *imethod)
2773 MonoMethod *method = (MonoMethod*)imethod;
2775 if (method->signature)
2776 mono_metadata_free_inflated_signature (method->signature);
2782 free_generic_inst (MonoGenericInst *ginst)
2786 /* The ginst itself is allocated from the image set mempool */
2787 for (i = 0; i < ginst->type_argc; ++i)
2788 mono_metadata_free_type (ginst->type_argv [i]);
2792 free_generic_class (MonoGenericClass *gclass)
2794 /* The gclass itself is allocated from the image set mempool */
2795 if (gclass->is_dynamic)
2796 mono_reflection_free_dynamic_generic_class (gclass);
2797 if (gclass->cached_class && gclass->cached_class->interface_id)
2798 mono_unload_interface_id (gclass->cached_class);
2802 free_inflated_signature (MonoInflatedMethodSignature *sig)
2804 mono_metadata_free_inflated_signature (sig->sig);
2809 * mono_metadata_get_inflated_signature:
2811 * Given an inflated signature and a generic context, return a canonical copy of the
2812 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2814 MonoMethodSignature *
2815 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2817 MonoInflatedMethodSignature helper;
2818 MonoInflatedMethodSignature *res;
2823 helper.context.class_inst = context->class_inst;
2824 helper.context.method_inst = context->method_inst;
2826 collect_data_init (&data);
2828 collect_inflated_signature_images (&helper, &data);
2830 set = get_image_set (data.images, data.nimages);
2832 collect_data_free (&data);
2834 mono_image_set_lock (set);
2836 res = (MonoInflatedMethodSignature *)g_hash_table_lookup (set->gsignature_cache, &helper);
2838 res = g_new0 (MonoInflatedMethodSignature, 1);
2840 res->context.class_inst = context->class_inst;
2841 res->context.method_inst = context->method_inst;
2842 g_hash_table_insert (set->gsignature_cache, res, res);
2845 mono_image_set_unlock (set);
2851 mono_metadata_get_image_set_for_method (MonoMethodInflated *method)
2854 CollectData image_set_data;
2856 collect_data_init (&image_set_data);
2857 collect_method_images (method, &image_set_data);
2858 set = get_image_set (image_set_data.images, image_set_data.nimages);
2859 collect_data_free (&image_set_data);
2865 * mono_metadata_get_generic_inst:
2867 * Given a list of types, return a MonoGenericInst that represents that list.
2868 * The returned MonoGenericInst has its own copy of the list of types. The list
2869 * passed in the argument can be freed, modified or disposed of.
2873 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2875 MonoGenericInst *ginst;
2878 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2882 for (i = 0; i < type_argc; ++i)
2883 if (mono_class_is_open_constructed_type (type_argv [i]))
2885 is_open = (i < type_argc);
2887 ginst = (MonoGenericInst *)g_alloca (size);
2888 memset (ginst, 0, sizeof (MonoGenericInst));
2889 ginst->is_open = is_open;
2890 ginst->type_argc = type_argc;
2891 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2893 collect_data_init (&data);
2895 collect_ginst_images (ginst, &data);
2897 set = get_image_set (data.images, data.nimages);
2899 collect_data_free (&data);
2901 mono_image_set_lock (set);
2903 ginst = (MonoGenericInst *)g_hash_table_lookup (set->ginst_cache, ginst);
2905 ginst = (MonoGenericInst *)mono_image_set_alloc0 (set, size);
2906 #ifndef MONO_SMALL_CONFIG
2907 ginst->id = ++next_generic_inst_id;
2909 ginst->is_open = is_open;
2910 ginst->type_argc = type_argc;
2912 for (i = 0; i < type_argc; ++i)
2913 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2915 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2918 mono_image_set_unlock (set);
2923 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2925 MonoGenericContainer *container = container_class->generic_container;
2927 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2929 return inst == container->context.class_inst;
2933 * mono_metadata_lookup_generic_class:
2935 * Returns a MonoGenericClass with the given properties.
2939 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2941 MonoGenericClass *gclass;
2942 MonoGenericClass helper;
2943 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2947 memset (&helper, 0, sizeof(helper)); // act like g_new0
2948 helper.container_class = container_class;
2949 helper.context.class_inst = inst;
2950 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2951 helper.is_tb_open = is_tb_open;
2953 collect_data_init (&data);
2955 collect_gclass_images (&helper, &data);
2957 set = get_image_set (data.images, data.nimages);
2959 collect_data_free (&data);
2961 mono_image_set_lock (set);
2963 gclass = (MonoGenericClass *)g_hash_table_lookup (set->gclass_cache, &helper);
2965 /* A tripwire just to keep us honest */
2966 g_assert (!helper.cached_class);
2969 mono_image_set_unlock (set);
2974 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
2975 gclass = &dgclass->generic_class;
2976 gclass->is_dynamic = 1;
2978 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
2981 gclass->is_tb_open = is_tb_open;
2982 gclass->container_class = container_class;
2983 gclass->context.class_inst = inst;
2984 gclass->context.method_inst = NULL;
2985 gclass->owner = set;
2986 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2987 gclass->cached_class = container_class;
2989 g_hash_table_insert (set->gclass_cache, gclass, gclass);
2991 mono_image_set_unlock (set);
2997 * mono_metadata_inflate_generic_inst:
2999 * Instantiate the generic instance @ginst with the context @context.
3000 * Check @error for success.
3004 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
3006 MonoType **type_argv;
3007 MonoGenericInst *nginst = NULL;
3010 mono_error_init (error);
3012 if (!ginst->is_open)
3015 type_argv = g_new0 (MonoType*, ginst->type_argc);
3017 for (i = 0; i < ginst->type_argc; i++) {
3018 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
3019 if (!mono_error_ok (error))
3024 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
3027 for (i = 0; i < count; i++)
3028 mono_metadata_free_type (type_argv [i]);
3035 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3036 int count, const char *ptr, const char **rptr, MonoError *error)
3038 MonoType **type_argv;
3039 MonoGenericInst *ginst;
3042 mono_error_init (error);
3043 type_argv = g_new0 (MonoType*, count);
3045 for (i = 0; i < count; i++) {
3046 MonoType *t = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error);
3057 ginst = mono_metadata_get_generic_inst (count, type_argv);
3065 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3066 const char *ptr, const char **rptr, MonoError *error)
3068 MonoGenericInst *inst;
3073 mono_error_init (error);
3075 // XXX how about transient?
3076 gtype = mono_metadata_parse_type_checked (m, NULL, 0, FALSE, ptr, &ptr, error);
3080 gklass = mono_class_from_mono_type (gtype);
3081 if (!gklass->generic_container) {
3082 mono_error_set_bad_image (error, m, "Generic instance with non-generic definition");
3086 count = mono_metadata_decode_value (ptr, &ptr);
3087 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr, error);
3094 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3100 * @gc: The generic container to normalize
3101 * @type: The kind of generic parameters the resulting generic-container should contain
3104 static MonoGenericContainer *
3105 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3107 gboolean is_var = (type == MONO_TYPE_VAR);
3111 g_assert (is_var || type == MONO_TYPE_MVAR);
3114 if (gc->is_method || gc->parent)
3116 * The current MonoGenericContainer is a generic method -> its `parent'
3117 * points to the containing class'es container.
3125 MonoGenericContainer *
3126 get_anonymous_container_for_image (MonoImage *image, gboolean is_mvar)
3128 MonoGenericContainer **container_pointer;
3130 container_pointer = &image->anonymous_generic_method_container;
3132 container_pointer = &image->anonymous_generic_class_container;
3133 MonoGenericContainer *result = *container_pointer;
3135 // This container has never been created; make it now.
3138 // Note this is never deallocated anywhere-- it exists for the lifetime of the image it's allocated from
3139 result = (MonoGenericContainer *)mono_image_alloc0 (image, sizeof (MonoGenericContainer));
3140 result->owner.image = image;
3141 result->is_anonymous = TRUE;
3142 result->is_small_param = TRUE;
3143 result->is_method = is_mvar;
3145 // If another thread already made a container, use that and leak this new one.
3146 // (Technically it would currently be safe to just assign instead of CASing.)
3147 MonoGenericContainer *exchange = (MonoGenericContainer *)InterlockedCompareExchangePointer ((volatile gpointer *)container_pointer, result, NULL);
3155 * mono_metadata_parse_generic_param:
3156 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3157 * see mono_metadata_parse_type_checked() for details.
3158 * Internal routine to parse a generic type parameter.
3159 * LOCKING: Acquires the loader lock
3161 static MonoGenericParam *
3162 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3163 MonoTypeEnum type, const char *ptr, const char **rptr, MonoError *error)
3165 int index = mono_metadata_decode_value (ptr, &ptr);
3169 mono_error_init (error);
3171 generic_container = select_container (generic_container, type);
3172 if (!generic_container) {
3173 gboolean is_mvar = FALSE;
3178 case MONO_TYPE_MVAR:
3182 g_error ("Cerating generic param object with invalid MonoType"); // This is not a generic param
3185 /* Create dummy MonoGenericParam */
3186 MonoGenericParam *param;
3188 param = (MonoGenericParam *)mono_image_alloc0 (m, sizeof (MonoGenericParam));
3190 param->owner = get_anonymous_container_for_image (m, is_mvar);
3195 if (index >= generic_container->type_argc) {
3196 mono_error_set_bad_image (error, m, "Invalid generic %s parameter index %d, max index is %d",
3197 generic_container->is_method ? "method" : "type",
3198 index, generic_container->type_argc);
3202 //This can't return NULL
3203 return mono_generic_container_get_param (generic_container, index);
3207 * mono_metadata_get_shared_type:
3209 * Return a shared instance of TYPE, if available, NULL otherwise.
3210 * Shared MonoType instances help save memory. Their contents should not be modified
3211 * by the caller. They do not need to be freed as their lifetime is bound by either
3212 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3213 * instance they are embedded in. If they are freed, they should be freed using
3214 * mono_metadata_free_type () instead of g_free ().
3217 mono_metadata_get_shared_type (MonoType *type)
3221 /* No need to use locking since nobody is modifying the hash table */
3222 if ((cached = (MonoType *)g_hash_table_lookup (type_cache, type)))
3225 switch (type->type){
3226 case MONO_TYPE_CLASS:
3227 case MONO_TYPE_VALUETYPE:
3228 if (type == &type->data.klass->byval_arg)
3230 if (type == &type->data.klass->this_arg)
3241 compare_type_literals (MonoImage *image, int class_type, int type_type, MonoError *error)
3243 mono_error_init (error);
3245 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3246 * See mcs/test/gtest-440. and #650936.
3247 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3251 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3254 if (class_type == type_type)
3257 if (type_type == MONO_TYPE_CLASS) {
3258 if (class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT)
3260 //XXX stringify this argument
3261 mono_error_set_bad_image (error, image, "Expected reference type but got type kind %d", class_type);
3265 g_assert (type_type == MONO_TYPE_VALUETYPE);
3266 switch (class_type) {
3267 case MONO_TYPE_BOOLEAN:
3268 case MONO_TYPE_CHAR:
3281 case MONO_TYPE_CLASS:
3284 //XXX stringify this argument
3285 mono_error_set_bad_image (error, image, "Expected value type but got type kind %d", class_type);
3291 verify_var_type_and_container (MonoImage *image, int var_type, MonoGenericContainer *container, MonoError *error)
3293 mono_error_init (error);
3294 if (var_type == MONO_TYPE_MVAR) {
3295 if (!container->is_method) { //MVAR and a method container
3296 mono_error_set_bad_image (error, image, "MVAR parsed in a context without a method container");
3300 if (!(!container->is_method || //VAR and class container
3301 (container->is_method && container->parent))) { //VAR and method container with parent
3302 mono_error_set_bad_image (error, image, "VAR parsed in a context without a class container");
3310 * do_mono_metadata_parse_type:
3311 * @type: MonoType to be filled in with the return value
3313 * @generic_context: generics_context
3314 * @transient: whenever to allocate data from the heap
3315 * @ptr: pointer to the encoded type
3316 * @rptr: pointer where the end of the encoded type is saved
3318 * Internal routine used to "fill" the contents of @type from an
3319 * allocated pointer. This is done this way to avoid doing too
3320 * many mini-allocations (particularly for the MonoFieldType which
3321 * most of the time is just a MonoType, but sometimes might be augmented).
3323 * This routine is used by mono_metadata_parse_type and
3324 * mono_metadata_parse_field_type
3326 * This extracts a Type as specified in Partition II (22.2.12)
3328 * Returns: FALSE if the type could not be loaded
3331 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3332 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
3334 mono_error_init (error);
3336 type->type = (MonoTypeEnum)mono_metadata_decode_value (ptr, &ptr);
3338 switch (type->type){
3339 case MONO_TYPE_VOID:
3340 case MONO_TYPE_BOOLEAN:
3341 case MONO_TYPE_CHAR:
3354 case MONO_TYPE_STRING:
3355 case MONO_TYPE_OBJECT:
3356 case MONO_TYPE_TYPEDBYREF:
3358 case MONO_TYPE_VALUETYPE:
3359 case MONO_TYPE_CLASS: {
3362 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3363 klass = mono_class_get_checked (m, token, error);
3364 type->data.klass = klass;
3368 if (!compare_type_literals (m, klass->byval_arg.type, type->type, error))
3373 case MONO_TYPE_SZARRAY: {
3374 MonoType *etype = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3378 type->data.klass = mono_class_from_mono_type (etype);
3379 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.
3382 case MONO_TYPE_PTR: {
3383 type->data.type = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3384 if (!type->data.type)
3388 case MONO_TYPE_FNPTR: {
3389 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, error);
3390 if (!type->data.method)
3394 case MONO_TYPE_ARRAY: {
3395 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr, error);
3396 if (!type->data.array)
3400 case MONO_TYPE_MVAR:
3401 case MONO_TYPE_VAR: {
3402 if (container && !verify_var_type_and_container (m, type->type, container, error))
3405 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr, error);
3406 if (!type->data.generic_param)
3411 case MONO_TYPE_GENERICINST: {
3412 if (!do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr, error))
3417 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);
3427 * mono_metadata_free_type:
3428 * @type: type to free
3430 * Free the memory allocated for type @type which is allocated on the heap.
3433 mono_metadata_free_type (MonoType *type)
3435 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3438 switch (type->type){
3439 case MONO_TYPE_OBJECT:
3440 case MONO_TYPE_STRING:
3441 if (!type->data.klass)
3444 case MONO_TYPE_CLASS:
3445 case MONO_TYPE_VALUETYPE:
3446 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3450 mono_metadata_free_type (type->data.type);
3452 case MONO_TYPE_FNPTR:
3453 mono_metadata_free_method_signature (type->data.method);
3455 case MONO_TYPE_ARRAY:
3456 mono_metadata_free_array (type->data.array);
3467 hex_dump (const char *buffer, int base, int count)
3469 int show_header = 1;
3477 for (i = 0; i < count; i++){
3480 printf ("\n0x%08x: ", (unsigned char) base + i);
3482 printf ("%02x ", (unsigned char) (buffer [i]));
3489 * @ptr: Points to the beginning of the Section Data (25.3)
3491 static MonoExceptionClause*
3492 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr, MonoError *error)
3494 unsigned char sect_data_flags;
3496 guint32 sect_data_len;
3497 MonoExceptionClause* clauses = NULL;
3499 mono_error_init (error);
3502 /* align on 32-bit boundary */
3503 ptr = dword_align (ptr);
3504 sect_data_flags = *ptr;
3507 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3509 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3512 sect_data_len = ptr [0];
3516 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3517 const unsigned char *p = dword_align (ptr);
3519 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3520 /* we could just store a pointer if we don't need to byteswap */
3521 clauses = (MonoExceptionClause *)g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3522 for (i = 0; i < *num_clauses; ++i) {
3523 MonoExceptionClause *ec = &clauses [i];
3526 ec->flags = read32 (p);
3527 ec->try_offset = read32 (p + 4);
3528 ec->try_len = read32 (p + 8);
3529 ec->handler_offset = read32 (p + 12);
3530 ec->handler_len = read32 (p + 16);
3531 tof_value = read32 (p + 20);
3534 ec->flags = read16 (p);
3535 ec->try_offset = read16 (p + 2);
3536 ec->try_len = *(p + 4);
3537 ec->handler_offset = read16 (p + 5);
3538 ec->handler_len = *(p + 7);
3539 tof_value = read32 (p + 8);
3542 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3543 ec->data.filter_offset = tof_value;
3544 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3545 ec->data.catch_class = NULL;
3547 ec->data.catch_class = mono_class_get_checked (m, tof_value, error);
3548 if (!is_ok (error)) {
3554 ec->data.catch_class = NULL;
3556 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3560 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3561 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3568 * mono_method_get_header_summary:
3569 * @method: The method to get the header.
3570 * @summary: Where to store the header
3573 * Returns: TRUE if the header was properly decoded.
3576 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3582 unsigned char flags, format;
3585 /*Only the GMD has a pointer to the metadata.*/
3586 while (method->is_inflated)
3587 method = ((MonoMethodInflated*)method)->declaring;
3589 summary->code_size = 0;
3590 summary->has_clauses = FALSE;
3592 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3593 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))
3596 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3597 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3600 summary->code_size = header->code_size;
3601 summary->has_clauses = header->num_clauses > 0;
3606 idx = mono_metadata_token_index (method->token);
3607 img = method->klass->image;
3608 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3610 /*We must run the verifier since we'll be decoding it.*/
3611 if (!mono_verifier_verify_method_header (img, rva, NULL))
3614 ptr = mono_image_rva_map (img, rva);
3618 flags = *(const unsigned char *)ptr;
3619 format = flags & METHOD_HEADER_FORMAT_MASK;
3622 case METHOD_HEADER_TINY_FORMAT:
3624 summary->code_size = flags >> 2;
3626 case METHOD_HEADER_FAT_FORMAT:
3627 fat_flags = read16 (ptr);
3629 summary->code_size = read32 (ptr);
3630 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3631 summary->has_clauses = TRUE;
3640 * mono_metadata_parse_mh_full:
3641 * @m: metadata context
3642 * @generic_context: generics context
3643 * @ptr: pointer to the method header.
3645 * Decode the method header at @ptr, including pointer to the IL code,
3646 * info about local variables and optional exception tables.
3647 * This is a Mono runtime internal function.
3649 * LOCKING: Acquires the loader lock.
3651 * Returns: a transient MonoMethodHeader allocated from the heap.
3654 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr, MonoError *error)
3656 MonoMethodHeader *mh = NULL;
3657 unsigned char flags = *(const unsigned char *) ptr;
3658 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3660 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3661 const unsigned char *code;
3662 MonoExceptionClause* clauses = NULL;
3663 int num_clauses = 0;
3664 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3665 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3667 mono_error_init (error);
3670 mono_error_set_bad_image (error, m, "Method header with null pointer");
3675 case METHOD_HEADER_TINY_FORMAT:
3676 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3679 mh->is_transient = TRUE;
3680 local_var_sig_tok = 0;
3681 mh->code_size = flags >> 2;
3682 mh->code = (unsigned char*)ptr;
3684 case METHOD_HEADER_FAT_FORMAT:
3685 fat_flags = read16 (ptr);
3687 max_stack = read16 (ptr);
3689 code_size = read32 (ptr);
3691 local_var_sig_tok = read32 (ptr);
3694 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3699 code = (unsigned char*)ptr;
3701 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3705 * There are more sections
3707 ptr = (char*)code + code_size;
3710 mono_error_set_bad_image (error, m, "Invalid method header format %d", format);
3714 if (local_var_sig_tok) {
3715 int idx = (local_var_sig_tok & 0xffffff)-1;
3716 if (idx >= t->rows || idx < 0) {
3717 mono_error_set_bad_image (error, m, "Invalid method header local vars signature token 0x%8x", idx);
3720 mono_metadata_decode_row (t, idx, cols, 1);
3722 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL)) {
3723 mono_error_set_bad_image (error, m, "Method header locals signature 0x%8x verification failed", idx);
3727 if (fat_flags & METHOD_HEADER_MORE_SECTS) {
3728 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr, error);
3732 if (local_var_sig_tok) {
3733 const char *locals_ptr;
3736 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3737 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3738 if (*locals_ptr != 0x07)
3739 g_warning ("wrong signature for locals blob");
3741 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3742 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3743 mh->num_locals = len;
3744 for (i = 0; i < len; ++i) {
3745 mh->locals [i] = mono_metadata_parse_type_internal (m, container, 0, TRUE, locals_ptr, &locals_ptr, error);
3750 mh = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3753 mh->code_size = code_size;
3754 mh->max_stack = max_stack;
3755 mh->is_transient = TRUE;
3756 mh->init_locals = init_locals;
3758 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3759 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3761 mh->clauses = clausesp;
3762 mh->num_clauses = num_clauses;
3773 * mono_metadata_parse_mh:
3774 * @generic_context: generics context
3775 * @ptr: pointer to the method header.
3777 * Decode the method header at @ptr, including pointer to the IL code,
3778 * info about local variables and optional exception tables.
3780 * Returns: a transient MonoMethodHeader allocated from the heap.
3783 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3786 MonoMethodHeader *header = mono_metadata_parse_mh_full (m, NULL, ptr, &error);
3787 mono_error_cleanup (&error);
3792 * mono_metadata_free_mh:
3793 * @mh: a method header
3795 * Free the memory allocated for the method header.
3798 mono_metadata_free_mh (MonoMethodHeader *mh)
3802 /* If it is not transient it means it's part of a wrapper method,
3803 * or a SRE-generated method, so the lifetime in that case is
3804 * dictated by the method's own lifetime
3806 if (mh->is_transient) {
3807 for (i = 0; i < mh->num_locals; ++i)
3808 mono_metadata_free_type (mh->locals [i]);
3814 * mono_method_header_get_code:
3815 * @header: a MonoMethodHeader pointer
3816 * @code_size: memory location for returning the code size
3817 * @max_stack: memory location for returning the max stack
3819 * Method header accessor to retreive info about the IL code properties:
3820 * a pointer to the IL code itself, the size of the code and the max number
3821 * of stack slots used by the code.
3823 * Returns: pointer to the IL code represented by the method header.
3825 const unsigned char*
3826 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3829 *code_size = header->code_size;
3831 *max_stack = header->max_stack;
3832 return header->code;
3836 * mono_method_header_get_locals:
3837 * @header: a MonoMethodHeader pointer
3838 * @num_locals: memory location for returning the number of local variables
3839 * @init_locals: memory location for returning the init_locals flag
3841 * Method header accessor to retreive info about the local variables:
3842 * an array of local types, the number of locals and whether the locals
3843 * are supposed to be initialized to 0 on method entry
3845 * Returns: pointer to an array of types of the local variables
3848 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3851 *num_locals = header->num_locals;
3853 *init_locals = header->init_locals;
3854 return header->locals;
3858 * mono_method_header_get_num_clauses:
3859 * @header: a MonoMethodHeader pointer
3861 * Method header accessor to retreive the number of exception clauses.
3863 * Returns: the number of exception clauses present
3866 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3868 return header->num_clauses;
3872 * mono_method_header_get_clauses:
3873 * @header: a MonoMethodHeader pointer
3874 * @method: MonoMethod the header belongs to
3875 * @iter: pointer to a iterator
3876 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3878 * Get the info about the exception clauses in the method. Set *iter to NULL to
3879 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3880 * At each iteration, the structure pointed to by clause if filled with the
3881 * exception clause information.
3883 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3887 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3889 MonoExceptionClause *sc;
3890 /* later we'll be able to use this interface to parse the clause info on demand,
3891 * without allocating anything.
3893 if (!iter || !header->num_clauses)
3896 *iter = sc = header->clauses;
3900 sc = (MonoExceptionClause *)*iter;
3902 if (sc < header->clauses + header->num_clauses) {
3911 * mono_metadata_parse_field_type:
3912 * @m: metadata context to extract information from
3913 * @ptr: pointer to the field signature
3914 * @rptr: pointer updated to match the end of the decoded stream
3916 * Parses the field signature, and returns the type information for it.
3918 * Returns: The MonoType that was extracted from @ptr.
3921 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3924 MonoType * type = mono_metadata_parse_type_internal (m, NULL, field_flags, FALSE, ptr, rptr, &error);
3925 mono_error_cleanup (&error);
3930 * mono_metadata_parse_param:
3931 * @m: metadata context to extract information from
3932 * @ptr: pointer to the param signature
3933 * @rptr: pointer updated to match the end of the decoded stream
3935 * Parses the param signature, and returns the type information for it.
3937 * Returns: The MonoType that was extracted from @ptr.
3940 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3943 MonoType * type = mono_metadata_parse_type_internal (m, NULL, 0, FALSE, ptr, rptr, &error);
3944 mono_error_cleanup (&error);
3949 * mono_metadata_token_from_dor:
3950 * @dor_token: A TypeDefOrRef coded index
3952 * dor_token is a TypeDefOrRef coded index: it contains either
3953 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3954 * bits contain an index into the table.
3956 * Returns: an expanded token
3959 mono_metadata_token_from_dor (guint32 dor_index)
3963 table = dor_index & 0x03;
3964 idx = dor_index >> 2;
3967 case 0: /* TypeDef */
3968 return MONO_TOKEN_TYPE_DEF | idx;
3969 case 1: /* TypeRef */
3970 return MONO_TOKEN_TYPE_REF | idx;
3971 case 2: /* TypeSpec */
3972 return MONO_TOKEN_TYPE_SPEC | idx;
3974 g_assert_not_reached ();
3981 * We use this to pass context information to the row locator
3984 int idx; /* The index that we are trying to locate */
3985 int col_idx; /* The index in the row where idx may be stored */
3986 MonoTableInfo *t; /* pointer to the table */
3991 * How the row locator works.
3996 * ___|___------> _______
3999 * A column in the rows of table A references an index in table B.
4000 * For example A may be the TYPEDEF table and B the METHODDEF table.
4002 * Given an index in table B we want to get the row in table A
4003 * where the column n references our index in B.
4005 * In the locator_t structure:
4007 * col_idx is the column number
4008 * index is the index in table B
4009 * result will be the index in table A
4012 * Table A Table B column (in table A)
4013 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
4014 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
4015 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
4016 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
4017 * METHODSEM PROPERTY ASSOCIATION (encoded index)
4019 * Note that we still don't support encoded indexes.
4023 typedef_locator (const void *a, const void *b)
4025 locator_t *loc = (locator_t *) a;
4026 const char *bb = (const char *) b;
4027 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
4028 guint32 col, col_next;
4030 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
4036 * Need to check that the next row is valid.
4038 if (typedef_index + 1 < loc->t->rows) {
4039 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
4040 if (loc->idx >= col_next)
4043 if (col == col_next)
4047 loc->result = typedef_index;
4053 table_locator (const void *a, const void *b)
4055 locator_t *loc = (locator_t *) a;
4056 const char *bb = (const char *) b;
4057 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4060 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4062 if (loc->idx == col) {
4063 loc->result = table_index;
4073 declsec_locator (const void *a, const void *b)
4075 locator_t *loc = (locator_t *) a;
4076 const char *bb = (const char *) b;
4077 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4080 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4082 if (loc->idx == col) {
4083 loc->result = table_index;
4095 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
4096 * which contains IDX.
4099 search_ptr_table (MonoImage *image, int table, int idx)
4101 MonoTableInfo *ptrdef = &image->tables [table];
4104 /* Use a linear search to find our index in the table */
4105 for (i = 0; i < ptrdef->rows; i ++)
4106 /* All the Ptr tables have the same structure */
4107 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
4110 if (i < ptrdef->rows)
4117 * mono_metadata_typedef_from_field:
4118 * @meta: metadata context
4119 * @index: FieldDef token
4121 * Returns: the 1-based index into the TypeDef table of the type that
4122 * declared the field described by @index, or 0 if not found.
4125 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
4127 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4133 loc.idx = mono_metadata_token_index (index);
4134 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
4137 if (meta->uncompressed_metadata)
4138 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4140 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4143 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4144 return loc.result + 1;
4148 * mono_metadata_typedef_from_method:
4149 * @meta: metadata context
4150 * @index: MethodDef token
4152 * Returns: the 1-based index into the TypeDef table of the type that
4153 * declared the method described by @index. 0 if not found.
4156 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4158 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4164 loc.idx = mono_metadata_token_index (index);
4165 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4168 if (meta->uncompressed_metadata)
4169 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4171 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4174 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4175 return loc.result + 1;
4179 * mono_metadata_interfaces_from_typedef_full:
4180 * @meta: metadata context
4181 * @index: typedef token
4182 * @interfaces: Out parameter used to store the interface array
4183 * @count: Out parameter used to store the number of interfaces
4184 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4185 * @context: The generic context
4187 * The array of interfaces that the @index typedef token implements is returned in
4188 * @interfaces. The number of elements in the array is returned in @count.
4191 * Returns: TRUE on success, FALSE on failure.
4194 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4196 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4199 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4205 mono_error_init (error);
4210 loc.idx = mono_metadata_token_index (index);
4211 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4214 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4219 * We may end up in the middle of the rows...
4222 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4228 while (pos < tdef->rows) {
4229 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4230 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4235 if (heap_alloc_result)
4236 result = g_new0 (MonoClass*, pos - start);
4238 result = (MonoClass **)mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4241 while (pos < tdef->rows) {
4244 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4245 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4247 iface = mono_class_get_and_inflate_typespec_checked (
4248 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4251 result [pos - start] = iface;
4254 *count = pos - start;
4255 *interfaces = result;
4260 * @meta: metadata context
4261 * @index: typedef token
4262 * @count: Out parameter used to store the number of interfaces
4264 * The array of interfaces that the @index typedef token implements is returned in
4265 * @interfaces. The number of elements in the array is returned in @count. The returned
4266 * array is g_malloc'd and the caller must free it.
4268 * LOCKING: Acquires the loader lock .
4270 * Returns: the interface array on success, NULL on failure.
4274 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4277 MonoClass **interfaces = NULL;
4280 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4281 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4289 * mono_metadata_nested_in_typedef:
4290 * @meta: metadata context
4291 * @index: typedef token
4293 * Returns: the 1-based index into the TypeDef table of the type
4294 * where the type described by @index is nested.
4295 * Returns 0 if @index describes a non-nested type.
4298 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4300 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4306 loc.idx = mono_metadata_token_index (index);
4307 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4310 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4313 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4314 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4318 * mono_metadata_nesting_typedef:
4319 * @meta: metadata context
4320 * @index: typedef token
4322 * Returns: the 1-based index into the TypeDef table of the first type
4323 * that is nested inside the type described by @index. The search starts at
4324 * @start_index. returns 0 if no such type is found.
4327 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4329 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4331 guint32 class_index = mono_metadata_token_index (index);
4336 start = start_index;
4338 while (start <= tdef->rows) {
4339 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4345 if (start > tdef->rows)
4352 * mono_metadata_packing_from_typedef:
4353 * @meta: metadata context
4354 * @index: token representing a type
4356 * Returns: the info stored in the ClassLAyout table for the given typedef token
4357 * into the @packing and @size pointers.
4358 * Returns 0 if the info is not found.
4361 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4363 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4365 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4370 loc.idx = mono_metadata_token_index (index);
4371 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4374 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4377 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4379 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4381 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4383 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4384 return loc.result + 1;
4388 * mono_metadata_custom_attrs_from_index:
4389 * @meta: metadata context
4390 * @index: token representing the parent
4392 * Returns: the 1-based index into the CustomAttribute table of the first
4393 * attribute which belongs to the metadata object described by @index.
4394 * Returns 0 if no such attribute is found.
4397 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4399 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4406 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4409 /* FIXME: Index translation */
4411 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4414 /* Find the first entry by searching backwards */
4415 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4418 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4419 return loc.result + 1;
4423 * mono_metadata_declsec_from_index:
4424 * @meta: metadata context
4425 * @index: token representing the parent
4427 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4428 * attribute which belongs to the metadata object described by @index.
4429 * Returns -1 if no such attribute is found.
4432 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4434 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4441 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4444 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4447 /* Find the first entry by searching backwards */
4448 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4455 * mono_metadata_localscope_from_methoddef:
4456 * @meta: metadata context
4457 * @index: methoddef index
4459 * Returns: the 1-based index into the LocalScope table of the first
4460 * scope which belongs to the method described by @index.
4461 * Returns 0 if no such row is found.
4464 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index)
4466 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_LOCALSCOPE];
4473 loc.col_idx = MONO_LOCALSCOPE_METHOD;
4476 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4479 /* Find the first entry by searching backwards */
4480 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_LOCALSCOPE_METHOD) == index))
4483 return loc.result + 1;
4488 mono_backtrace (int limit)
4493 backtrace (array, limit);
4494 names = backtrace_symbols (array, limit);
4495 for (i =0; i < limit; ++i) {
4496 g_print ("\t%s\n", names [i]);
4502 static int i8_align;
4505 * mono_type_set_alignment:
4507 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4508 * This should only be used in AOT mode since the resulting layout will not match the
4512 mono_type_set_alignment (MonoTypeEnum type, int align)
4514 /* Support only a few types whose alignment is abi dependent */
4520 g_assert_not_reached ();
4527 * @t: the type to return the size of
4529 * Returns: the number of bytes required to hold an instance of this
4533 mono_type_size (MonoType *t, int *align)
4535 MonoTypeEnum simple_type;
4542 *align = MONO_ABI_ALIGNOF (gpointer);
4543 return MONO_ABI_SIZEOF (gpointer);
4546 simple_type = t->type;
4548 switch (simple_type) {
4549 case MONO_TYPE_VOID:
4552 case MONO_TYPE_BOOLEAN:
4553 *align = MONO_ABI_ALIGNOF (gint8);
4557 *align = MONO_ABI_ALIGNOF (gint8);
4559 case MONO_TYPE_CHAR:
4562 *align = MONO_ABI_ALIGNOF (gint16);
4566 *align = MONO_ABI_ALIGNOF (gint32);
4569 *align = MONO_ABI_ALIGNOF (float);
4573 *align = MONO_ABI_ALIGNOF (gint64);
4576 *align = MONO_ABI_ALIGNOF (double);
4580 *align = MONO_ABI_ALIGNOF (gpointer);
4581 return MONO_ABI_SIZEOF (gpointer);
4582 case MONO_TYPE_VALUETYPE: {
4583 if (t->data.klass->enumtype)
4584 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4586 return mono_class_value_size (t->data.klass, (guint32*)align);
4588 case MONO_TYPE_STRING:
4589 case MONO_TYPE_OBJECT:
4590 case MONO_TYPE_CLASS:
4591 case MONO_TYPE_SZARRAY:
4593 case MONO_TYPE_FNPTR:
4594 case MONO_TYPE_ARRAY:
4595 *align = MONO_ABI_ALIGNOF (gpointer);
4596 return MONO_ABI_SIZEOF (gpointer);
4597 case MONO_TYPE_TYPEDBYREF:
4598 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4599 case MONO_TYPE_GENERICINST: {
4600 MonoGenericClass *gclass = t->data.generic_class;
4601 MonoClass *container_class = gclass->container_class;
4603 // g_assert (!gclass->inst->is_open);
4605 if (container_class->valuetype) {
4606 if (container_class->enumtype)
4607 return mono_type_size (mono_class_enum_basetype (container_class), align);
4609 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4611 *align = MONO_ABI_ALIGNOF (gpointer);
4612 return MONO_ABI_SIZEOF (gpointer);
4616 case MONO_TYPE_MVAR:
4617 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4618 *align = MONO_ABI_ALIGNOF (gpointer);
4619 return MONO_ABI_SIZEOF (gpointer);
4621 /* The gparam can only match types given by gshared_constraint */
4622 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4626 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4632 * mono_type_stack_size:
4633 * @t: the type to return the size it uses on the stack
4635 * Returns: the number of bytes required to hold an instance of this
4636 * type on the runtime stack
4639 mono_type_stack_size (MonoType *t, int *align)
4641 return mono_type_stack_size_internal (t, align, FALSE);
4645 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4648 MonoTypeEnum simple_type;
4649 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4650 int stack_slot_size = MONO_ABI_SIZEOF (gpointer);
4651 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4652 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4653 int stack_slot_size = SIZEOF_REGISTER;
4654 int stack_slot_align = SIZEOF_REGISTER;
4657 g_assert (t != NULL);
4663 *align = stack_slot_align;
4664 return stack_slot_size;
4667 simple_type = t->type;
4668 switch (simple_type) {
4669 case MONO_TYPE_BOOLEAN:
4670 case MONO_TYPE_CHAR:
4679 case MONO_TYPE_STRING:
4680 case MONO_TYPE_OBJECT:
4681 case MONO_TYPE_CLASS:
4682 case MONO_TYPE_SZARRAY:
4684 case MONO_TYPE_FNPTR:
4685 case MONO_TYPE_ARRAY:
4686 *align = stack_slot_align;
4687 return stack_slot_size;
4689 case MONO_TYPE_MVAR:
4690 g_assert (allow_open);
4691 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4692 *align = stack_slot_align;
4693 return stack_slot_size;
4695 /* The gparam can only match types given by gshared_constraint */
4696 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4698 case MONO_TYPE_TYPEDBYREF:
4699 *align = stack_slot_align;
4700 return stack_slot_size * 3;
4702 *align = MONO_ABI_ALIGNOF (float);
4703 return sizeof (float);
4706 *align = MONO_ABI_ALIGNOF (gint64);
4707 return sizeof (gint64);
4709 *align = MONO_ABI_ALIGNOF (double);
4710 return sizeof (double);
4711 case MONO_TYPE_VALUETYPE: {
4714 if (t->data.klass->enumtype)
4715 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4717 size = mono_class_value_size (t->data.klass, (guint32*)align);
4719 *align = *align + stack_slot_align - 1;
4720 *align &= ~(stack_slot_align - 1);
4722 size += stack_slot_size - 1;
4723 size &= ~(stack_slot_size - 1);
4728 case MONO_TYPE_GENERICINST: {
4729 MonoGenericClass *gclass = t->data.generic_class;
4730 MonoClass *container_class = gclass->container_class;
4733 g_assert (!gclass->context.class_inst->is_open);
4735 if (container_class->valuetype) {
4736 if (container_class->enumtype)
4737 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4739 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4741 *align = *align + stack_slot_align - 1;
4742 *align &= ~(stack_slot_align - 1);
4744 size += stack_slot_size - 1;
4745 size &= ~(stack_slot_size - 1);
4750 *align = stack_slot_align;
4751 return stack_slot_size;
4755 g_error ("type 0x%02x unknown", t->type);
4761 mono_type_generic_inst_is_valuetype (MonoType *type)
4763 g_assert (type->type == MONO_TYPE_GENERICINST);
4764 return type->data.generic_class->container_class->valuetype;
4768 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4770 return gclass->container_class->valuetype;
4774 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4776 MonoGenericInst *i1 = g1->context.class_inst;
4777 MonoGenericInst *i2 = g2->context.class_inst;
4779 if (g1->is_dynamic != g2->is_dynamic)
4781 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4783 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4785 return g1->is_tb_open == g2->is_tb_open;
4789 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4791 MonoGenericInst *i1 = g1->context.class_inst;
4792 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4794 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4796 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4798 return !g1->is_tb_open;
4802 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4804 /* FIXME: check if this seed is good enough */
4805 guint hash = 0xc01dfee7;
4806 if (context->class_inst)
4807 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4808 if (context->method_inst)
4809 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4814 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4816 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4820 * mono_metadata_str_hash:
4822 * This should be used instead of g_str_hash for computing hash codes visible
4823 * outside this module, since g_str_hash () is not guaranteed to be stable
4824 * (its not the same in eglib for example).
4827 mono_metadata_str_hash (gconstpointer v1)
4829 /* Same as g_str_hash () in glib */
4830 char *p = (char *) v1;
4835 hash = (hash << 5) - hash + *p;
4842 * mono_metadata_type_hash:
4845 * Computes an hash value for @t1 to be used in GHashTable.
4846 * The returned hash is guaranteed to be the same across executions.
4849 mono_metadata_type_hash (MonoType *t1)
4851 guint hash = t1->type;
4853 hash |= t1->byref << 6; /* do not collide with t1->type values */
4855 case MONO_TYPE_VALUETYPE:
4856 case MONO_TYPE_CLASS:
4857 case MONO_TYPE_SZARRAY: {
4858 MonoClass *klass = t1->data.klass;
4860 * Dynamic classes must not be hashed on their type since it can change
4861 * during runtime. For example, if we hash a reference type that is
4862 * later made into a valuetype.
4864 * This is specially problematic with generic instances since they are
4865 * inserted in a bunch of hash tables before been finished.
4867 if (image_is_dynamic (klass->image))
4868 return (t1->byref << 6) | mono_metadata_str_hash (klass->name);
4869 return ((hash << 5) - hash) ^ mono_metadata_str_hash (klass->name);
4872 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4873 case MONO_TYPE_ARRAY:
4874 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4875 case MONO_TYPE_GENERICINST:
4876 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4878 case MONO_TYPE_MVAR:
4879 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
4886 mono_metadata_generic_param_hash (MonoGenericParam *p)
4889 MonoGenericParamInfo *info;
4891 hash = (mono_generic_param_num (p) << 2);
4892 if (p->gshared_constraint)
4893 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
4894 info = mono_generic_param_info (p);
4895 /* Can't hash on the owner klass/method, since those might not be set when this is called */
4897 hash = ((hash << 5) - hash) ^ info->token;
4902 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4906 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4908 if (p1->gshared_constraint && p2->gshared_constraint) {
4909 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
4912 if (p1->gshared_constraint != p2->gshared_constraint)
4917 * We have to compare the image as well because if we didn't,
4918 * the generic_inst_cache lookup wouldn't care about the image
4919 * of generic params, so what could happen is that a generic
4920 * inst with params from image A is put into the cache, then
4921 * image B gets that generic inst from the cache, image A is
4922 * unloaded, so the inst is deleted, but image B still retains
4925 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2))
4929 * If `signature_only' is true, we're comparing two (method) signatures.
4930 * In this case, the owner of two type parameters doesn't need to match.
4933 return signature_only;
4937 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
4939 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
4943 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4947 if (c1->generic_class && c2->generic_class)
4948 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4949 if (c1->generic_class && c2->generic_container)
4950 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4951 if (c1->generic_container && c2->generic_class)
4952 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4953 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4954 return mono_metadata_generic_param_equal_internal (
4955 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4956 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4957 return mono_metadata_generic_param_equal_internal (
4958 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4959 if (signature_only &&
4960 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4961 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4962 if (signature_only &&
4963 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
4964 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
4969 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4971 gpointer iter1 = 0, iter2 = 0;
4975 if (s1->call_convention != s2->call_convention)
4977 if (s1->sentinelpos != s2->sentinelpos)
4979 if (s1->hasthis != s2->hasthis)
4981 if (s1->explicit_this != s2->explicit_this)
4983 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4985 if (s1->param_count != s2->param_count)
4989 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4990 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4992 if (t1 == NULL || t2 == NULL)
4994 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
5000 * mono_metadata_type_equal:
5003 * @signature_only: If true, treat ginsts as equal which are instantiated separately but have equal positional value
5005 * Determine if @t1 and @t2 represent the same type.
5006 * Returns: #TRUE if @t1 and @t2 are equal.
5009 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
5011 if (t1->type != t2->type || t1->byref != t2->byref)
5015 case MONO_TYPE_VOID:
5016 case MONO_TYPE_BOOLEAN:
5017 case MONO_TYPE_CHAR:
5028 case MONO_TYPE_STRING:
5031 case MONO_TYPE_OBJECT:
5032 case MONO_TYPE_TYPEDBYREF:
5034 case MONO_TYPE_VALUETYPE:
5035 case MONO_TYPE_CLASS:
5036 case MONO_TYPE_SZARRAY:
5037 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
5039 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
5040 case MONO_TYPE_ARRAY:
5041 if (t1->data.array->rank != t2->data.array->rank)
5043 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
5044 case MONO_TYPE_GENERICINST:
5045 return _mono_metadata_generic_class_equal (
5046 t1->data.generic_class, t2->data.generic_class, signature_only);
5048 return mono_metadata_generic_param_equal_internal (
5049 t1->data.generic_param, t2->data.generic_param, signature_only);
5050 case MONO_TYPE_MVAR:
5051 return mono_metadata_generic_param_equal_internal (
5052 t1->data.generic_param, t2->data.generic_param, signature_only);
5053 case MONO_TYPE_FNPTR:
5054 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
5056 g_error ("implement type compare for %0x!", t1->type);
5064 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
5066 return do_mono_metadata_type_equal (t1, t2, FALSE);
5070 * mono_metadata_type_equal_full:
5073 * @signature_only: if signature only comparison should be made
5075 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
5076 * behaves the same way as mono_metadata_type_equal.
5077 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
5078 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
5081 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
5083 return do_mono_metadata_type_equal (t1, t2, signature_only);
5087 * mono_metadata_signature_equal:
5088 * @sig1: a signature
5089 * @sig2: another signature
5091 * Determine if @sig1 and @sig2 represent the same signature, with the
5092 * same number of arguments and the same types.
5093 * Returns: #TRUE if @sig1 and @sig2 are equal.
5096 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
5100 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
5103 if (sig1->generic_param_count != sig2->generic_param_count)
5107 * We're just comparing the signatures of two methods here:
5109 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
5110 * U and V are equal here.
5112 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
5115 for (i = 0; i < sig1->param_count; i++) {
5116 MonoType *p1 = sig1->params[i];
5117 MonoType *p2 = sig2->params[i];
5119 /* if (p1->attrs != p2->attrs)
5122 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
5126 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
5132 * mono_metadata_type_dup:
5133 * @image: image to alloc memory from
5134 * @original: type to duplicate
5136 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
5139 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
5142 int sizeof_o = MONO_SIZEOF_TYPE;
5144 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
5146 r = image ? (MonoType *)mono_image_alloc0 (image, sizeof_o) : (MonoType *)g_malloc (sizeof_o);
5148 memcpy (r, o, sizeof_o);
5150 if (o->type == MONO_TYPE_PTR) {
5151 r->data.type = mono_metadata_type_dup (image, o->data.type);
5152 } else if (o->type == MONO_TYPE_ARRAY) {
5153 r->data.array = mono_dup_array_type (image, o->data.array);
5154 } else if (o->type == MONO_TYPE_FNPTR) {
5155 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
5156 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
5162 mono_signature_hash (MonoMethodSignature *sig)
5164 guint i, res = sig->ret->type;
5166 for (i = 0; i < sig->param_count; i++)
5167 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5173 * mono_metadata_encode_value:
5174 * @value: value to encode
5175 * @buf: buffer where to write the compressed representation
5176 * @endbuf: pointer updated to point at the end of the encoded output
5178 * Encodes the value @value in the compressed representation used
5179 * in metadata and stores the result in @buf. @buf needs to be big
5180 * enough to hold the data (4 bytes).
5183 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5189 else if (value < 0x4000) {
5190 p [0] = 0x80 | (value >> 8);
5191 p [1] = value & 0xff;
5194 p [0] = (value >> 24) | 0xc0;
5195 p [1] = (value >> 16) & 0xff;
5196 p [2] = (value >> 8) & 0xff;
5197 p [3] = value & 0xff;
5205 * mono_metadata_field_info:
5206 * @meta: the Image the field is defined in
5207 * @index: the index in the field table representing the field
5208 * @offset: a pointer to an integer where to store the offset that
5209 * may have been specified for the field in a FieldLayout table
5210 * @rva: a pointer to the RVA of the field data in the image that
5211 * may have been defined in a FieldRVA table
5212 * @marshal_spec: a pointer to the marshal spec that may have been
5213 * defined for the field in a FieldMarshal table.
5215 * Gather info for field @index that may have been defined in the FieldLayout,
5216 * FieldRVA and FieldMarshal tables.
5217 * Either of offset, rva and marshal_spec can be NULL if you're not interested
5221 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5222 MonoMarshalSpec **marshal_spec)
5224 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5228 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5229 MonoMarshalSpec **marshal_spec)
5231 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5235 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5236 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5238 MonoTableInfo *tdef;
5241 loc.idx = index + 1;
5242 if (meta->uncompressed_metadata)
5243 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5246 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5248 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5251 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5252 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5254 *offset = (guint32)-1;
5258 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5260 loc.col_idx = MONO_FIELD_RVA_FIELD;
5263 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5265 * LAMESPEC: There is no signature, no nothing, just the raw data.
5267 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5275 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5276 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5283 * mono_metadata_get_constant_index:
5284 * @meta: the Image the field is defined in
5285 * @index: the token that may have a row defined in the constants table
5286 * @hint: possible position for the row
5288 * @token must be a FieldDef, ParamDef or PropertyDef token.
5290 * Returns: the index into the Constants table or 0 if not found.
5293 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5295 MonoTableInfo *tdef;
5297 guint32 index = mono_metadata_token_index (token);
5299 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5300 index <<= MONO_HASCONSTANT_BITS;
5301 switch (mono_metadata_token_table (token)) {
5302 case MONO_TABLE_FIELD:
5303 index |= MONO_HASCONSTANT_FIEDDEF;
5305 case MONO_TABLE_PARAM:
5306 index |= MONO_HASCONSTANT_PARAM;
5308 case MONO_TABLE_PROPERTY:
5309 index |= MONO_HASCONSTANT_PROPERTY;
5312 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5316 loc.col_idx = MONO_CONSTANT_PARENT;
5319 /* FIXME: Index translation */
5321 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5324 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5325 return loc.result + 1;
5331 * mono_metadata_events_from_typedef:
5332 * @meta: metadata context
5333 * @index: 0-based index (in the TypeDef table) describing a type
5335 * Returns: the 0-based index in the Event table for the events in the
5336 * type. The last event that belongs to the type (plus 1) is stored
5337 * in the @end_idx pointer.
5340 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5344 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5352 loc.col_idx = MONO_EVENT_MAP_PARENT;
5353 loc.idx = index + 1;
5355 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5358 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5359 if (loc.result + 1 < tdef->rows) {
5360 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5362 end = meta->tables [MONO_TABLE_EVENT].rows;
5370 * mono_metadata_methods_from_event:
5371 * @meta: metadata context
5372 * @index: 0-based index (in the Event table) describing a event
5374 * Returns: the 0-based index in the MethodDef table for the methods in the
5375 * event. The last method that belongs to the event (plus 1) is stored
5376 * in the @end_idx pointer.
5379 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5383 guint32 cols [MONO_METHOD_SEMA_SIZE];
5384 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5390 if (meta->uncompressed_metadata)
5391 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5394 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5395 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5397 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5402 * We may end up in the middle of the rows...
5405 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5411 while (end < msemt->rows) {
5412 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5413 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5422 * mono_metadata_properties_from_typedef:
5423 * @meta: metadata context
5424 * @index: 0-based index (in the TypeDef table) describing a type
5426 * Returns: the 0-based index in the Property table for the properties in the
5427 * type. The last property that belongs to the type (plus 1) is stored
5428 * in the @end_idx pointer.
5431 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5435 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5443 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5444 loc.idx = index + 1;
5446 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5449 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5450 if (loc.result + 1 < tdef->rows) {
5451 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5453 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5461 * mono_metadata_methods_from_property:
5462 * @meta: metadata context
5463 * @index: 0-based index (in the PropertyDef table) describing a property
5465 * Returns: the 0-based index in the MethodDef table for the methods in the
5466 * property. The last method that belongs to the property (plus 1) is stored
5467 * in the @end_idx pointer.
5470 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5474 guint32 cols [MONO_METHOD_SEMA_SIZE];
5475 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5481 if (meta->uncompressed_metadata)
5482 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5485 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5486 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5488 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5493 * We may end up in the middle of the rows...
5496 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5502 while (end < msemt->rows) {
5503 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5504 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5513 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5516 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5521 /* No index translation seems to be needed */
5524 loc.col_idx = MONO_IMPLMAP_MEMBER;
5525 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5527 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5530 return loc.result + 1;
5534 * @image: context where the image is created
5535 * @type_spec: typespec token
5536 * @deprecated use mono_type_create_from_typespec_checked that has proper error handling
5538 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5542 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5545 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5547 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5552 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5555 guint32 idx = mono_metadata_token_index (type_spec);
5557 guint32 cols [MONO_TYPESPEC_SIZE];
5559 MonoType *type, *type2;
5561 mono_error_init (error);
5563 mono_image_lock (image);
5564 type = (MonoType *)g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5565 mono_image_unlock (image);
5569 t = &image->tables [MONO_TABLE_TYPESPEC];
5571 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5572 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5574 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5575 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5579 mono_metadata_decode_value (ptr, &ptr);
5581 type = mono_metadata_parse_type_checked (image, NULL, 0, TRUE, ptr, &ptr, error);
5585 type2 = mono_metadata_type_dup (image, type);
5586 mono_metadata_free_type (type);
5588 mono_image_lock (image);
5589 type = (MonoType *)g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5590 /* We might leak some data in the image mempool if found */
5592 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5595 mono_image_unlock (image);
5602 mono_image_strndup (MonoImage *image, const char *data, guint len)
5606 return g_strndup (data, len);
5607 res = (char *)mono_image_alloc (image, len + 1);
5608 memcpy (res, data, len);
5614 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5616 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5620 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5621 * PARENT_IMAGE is the image containing the marshal spec.
5624 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5626 MonoMarshalSpec *res;
5628 const char *start = ptr;
5630 /* fixme: this is incomplete, but I cant find more infos in the specs */
5633 res = (MonoMarshalSpec *)mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5635 res = g_new0 (MonoMarshalSpec, 1);
5637 len = mono_metadata_decode_value (ptr, &ptr);
5638 res->native = (MonoMarshalNative)*ptr++;
5640 if (res->native == MONO_NATIVE_LPARRAY) {
5641 res->data.array_data.param_num = -1;
5642 res->data.array_data.num_elem = -1;
5643 res->data.array_data.elem_mult = -1;
5645 if (ptr - start <= len)
5646 res->data.array_data.elem_type = (MonoMarshalNative)*ptr++;
5647 if (ptr - start <= len)
5648 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5649 if (ptr - start <= len)
5650 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5651 if (ptr - start <= len) {
5653 * LAMESPEC: Older spec versions say this parameter comes before
5654 * num_elem. Never spec versions don't talk about elem_mult at
5655 * all, but csc still emits it, and it is used to distinguish
5656 * between param_num being 0, and param_num being omitted.
5657 * So if (param_num == 0) && (num_elem > 0), then
5658 * elem_mult == 0 -> the array size is num_elem
5659 * elem_mult == 1 -> the array size is @param_num + num_elem
5661 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5665 if (res->native == MONO_NATIVE_BYVALTSTR) {
5666 if (ptr - start <= len)
5667 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5670 if (res->native == MONO_NATIVE_BYVALARRAY) {
5671 if (ptr - start <= len)
5672 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5675 if (res->native == MONO_NATIVE_CUSTOM) {
5676 /* skip unused type guid */
5677 len = mono_metadata_decode_value (ptr, &ptr);
5679 /* skip unused native type name */
5680 len = mono_metadata_decode_value (ptr, &ptr);
5682 /* read custom marshaler type name */
5683 len = mono_metadata_decode_value (ptr, &ptr);
5684 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5686 /* read cookie string */
5687 len = mono_metadata_decode_value (ptr, &ptr);
5688 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5689 res->data.custom_data.image = parent_image;
5692 if (res->native == MONO_NATIVE_SAFEARRAY) {
5693 res->data.safearray_data.elem_type = (MonoMarshalVariant)0;
5694 res->data.safearray_data.num_elem = 0;
5695 if (ptr - start <= len)
5696 res->data.safearray_data.elem_type = (MonoMarshalVariant)*ptr++;
5697 if (ptr - start <= len)
5698 res->data.safearray_data.num_elem = *ptr++;
5704 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5706 if (spec->native == MONO_NATIVE_CUSTOM) {
5707 g_free (spec->data.custom_data.custom_name);
5708 g_free (spec->data.custom_data.cookie);
5714 * mono_type_to_unmanaged:
5716 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5717 * describing the underlying native reprensetation of the type.
5719 * In addition the value pointed by
5720 * "conv" will contain the kind of marshalling required for this
5721 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5724 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5725 gboolean unicode, MonoMarshalConv *conv)
5727 MonoMarshalConv dummy_conv;
5733 *conv = MONO_MARSHAL_CONV_NONE;
5736 return MONO_NATIVE_UINT;
5740 case MONO_TYPE_BOOLEAN:
5742 switch (mspec->native) {
5743 case MONO_NATIVE_VARIANTBOOL:
5744 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5745 return MONO_NATIVE_VARIANTBOOL;
5746 case MONO_NATIVE_BOOLEAN:
5747 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5748 return MONO_NATIVE_BOOLEAN;
5749 case MONO_NATIVE_I1:
5750 case MONO_NATIVE_U1:
5751 return mspec->native;
5753 g_error ("cant marshal bool to native type %02x", mspec->native);
5756 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5757 return MONO_NATIVE_BOOLEAN;
5758 case MONO_TYPE_CHAR:
5760 switch (mspec->native) {
5761 case MONO_NATIVE_U2:
5762 case MONO_NATIVE_U1:
5763 return mspec->native;
5765 g_error ("cant marshal char to native type %02x", mspec->native);
5768 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5769 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5770 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5771 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5772 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5773 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5774 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5775 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5776 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5777 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5778 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5779 case MONO_TYPE_STRING:
5781 switch (mspec->native) {
5782 case MONO_NATIVE_BSTR:
5783 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5784 return MONO_NATIVE_BSTR;
5785 case MONO_NATIVE_LPSTR:
5786 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5787 return MONO_NATIVE_LPSTR;
5788 case MONO_NATIVE_LPWSTR:
5789 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5790 return MONO_NATIVE_LPWSTR;
5791 case MONO_NATIVE_LPTSTR:
5792 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5793 return MONO_NATIVE_LPTSTR;
5794 case MONO_NATIVE_ANSIBSTR:
5795 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5796 return MONO_NATIVE_ANSIBSTR;
5797 case MONO_NATIVE_TBSTR:
5798 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5799 return MONO_NATIVE_TBSTR;
5800 case MONO_NATIVE_BYVALTSTR:
5802 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5804 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5805 return MONO_NATIVE_BYVALTSTR;
5807 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);
5811 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5812 return MONO_NATIVE_LPWSTR;
5815 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5816 return MONO_NATIVE_LPSTR;
5818 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5819 case MONO_TYPE_VALUETYPE: /*FIXME*/
5820 if (type->data.klass->enumtype) {
5821 t = mono_class_enum_basetype (type->data.klass)->type;
5824 if (type->data.klass == mono_defaults.handleref_class){
5825 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5826 return MONO_NATIVE_INT;
5828 return MONO_NATIVE_STRUCT;
5829 case MONO_TYPE_SZARRAY:
5830 case MONO_TYPE_ARRAY:
5832 switch (mspec->native) {
5833 case MONO_NATIVE_BYVALARRAY:
5834 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5835 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5837 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5838 return MONO_NATIVE_BYVALARRAY;
5839 case MONO_NATIVE_SAFEARRAY:
5840 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5841 return MONO_NATIVE_SAFEARRAY;
5842 case MONO_NATIVE_LPARRAY:
5843 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5844 return MONO_NATIVE_LPARRAY;
5846 g_error ("cant marshal array as native type %02x", mspec->native);
5850 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5851 return MONO_NATIVE_LPARRAY;
5852 case MONO_TYPE_I: return MONO_NATIVE_INT;
5853 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5854 case MONO_TYPE_CLASS:
5855 case MONO_TYPE_OBJECT: {
5856 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5858 switch (mspec->native) {
5859 case MONO_NATIVE_STRUCT:
5860 return MONO_NATIVE_STRUCT;
5861 case MONO_NATIVE_CUSTOM:
5862 return MONO_NATIVE_CUSTOM;
5863 case MONO_NATIVE_INTERFACE:
5864 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5865 return MONO_NATIVE_INTERFACE;
5866 case MONO_NATIVE_IDISPATCH:
5867 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5868 return MONO_NATIVE_IDISPATCH;
5869 case MONO_NATIVE_IUNKNOWN:
5870 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5871 return MONO_NATIVE_IUNKNOWN;
5872 case MONO_NATIVE_FUNC:
5873 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5874 type->data.klass == mono_defaults.delegate_class ||
5875 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5876 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5877 return MONO_NATIVE_FUNC;
5881 g_error ("cant marshal object as native type %02x", mspec->native);
5884 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5885 type->data.klass == mono_defaults.delegate_class ||
5886 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5887 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5888 return MONO_NATIVE_FUNC;
5890 if (mono_class_try_get_safehandle_class () && type->data.klass == mono_class_try_get_safehandle_class ()){
5891 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5892 return MONO_NATIVE_INT;
5894 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5895 return MONO_NATIVE_STRUCT;
5897 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5898 case MONO_TYPE_GENERICINST:
5899 type = &type->data.generic_class->container_class->byval_arg;
5902 case MONO_TYPE_TYPEDBYREF:
5904 g_error ("type 0x%02x not handled in marshal", t);
5906 return MONO_NATIVE_MAX;
5910 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5913 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5919 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5920 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5922 /* FIXME: Index translation */
5924 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5927 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5931 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
5933 MonoMethod *result = NULL;
5934 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5936 mono_error_init (error);
5938 switch (tok & MONO_METHODDEFORREF_MASK) {
5939 case MONO_METHODDEFORREF_METHODDEF:
5940 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
5942 case MONO_METHODDEFORREF_METHODREF:
5943 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
5946 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
5953 * mono_class_get_overrides_full:
5955 * Return the method overrides belonging to class @type_token in @overrides, and
5956 * the number of overrides in @num_overrides.
5958 * Returns: TRUE on success, FALSE on failure.
5961 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5962 MonoGenericContext *generic_context)
5966 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5969 guint32 cols [MONO_METHODIMPL_SIZE];
5970 MonoMethod **result;
5981 loc.col_idx = MONO_METHODIMPL_CLASS;
5982 loc.idx = mono_metadata_token_index (type_token);
5984 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5990 * We may end up in the middle of the rows...
5993 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5998 while (end < tdef->rows) {
5999 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
6005 result = g_new (MonoMethod*, num * 2);
6006 for (i = 0; i < num; ++i) {
6009 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
6010 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6015 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
6016 method = method_from_method_def_or_ref (
6017 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
6018 if (method == NULL) {
6019 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6022 result [i * 2] = method;
6023 method = method_from_method_def_or_ref (
6024 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
6025 if (method == NULL) {
6026 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6029 result [i * 2 + 1] = method;
6032 *overrides = result;
6034 *num_overrides = num;
6039 * mono_guid_to_string:
6041 * Converts a 16 byte Microsoft GUID to the standard string representation.
6044 mono_guid_to_string (const guint8 *guid)
6046 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
6047 guid[3], guid[2], guid[1], guid[0],
6051 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6055 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
6057 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
6058 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
6059 guint32 i, token, found;
6060 MonoClass *klass, **res;
6061 GSList *cons = NULL, *tmp;
6062 MonoGenericContext *context = &container->context;
6064 mono_error_init (error);
6066 *constraints = NULL;
6068 for (i = 0; i < tdef->rows; ++i) {
6069 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
6070 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
6071 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
6072 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
6074 g_slist_free (cons);
6077 cons = g_slist_append (cons, klass);
6080 /* contiguous list finished */
6087 res = (MonoClass **)mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
6088 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
6089 res [i] = (MonoClass *)tmp->data;
6091 g_slist_free (cons);
6097 * mono_metadata_get_generic_param_row:
6100 * @token: TypeOrMethodDef token, owner for GenericParam
6101 * @owner: coded token, set on return
6103 * Returns: 1-based row-id in the GenericParam table whose
6104 * owner is @token. 0 if not found.
6107 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
6109 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6116 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
6117 *owner = MONO_TYPEORMETHOD_TYPE;
6118 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6119 *owner = MONO_TYPEORMETHOD_METHOD;
6121 g_error ("wrong token %x to get_generic_param_row", token);
6124 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
6127 loc.col_idx = MONO_GENERICPARAM_OWNER;
6130 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6133 /* Find the first entry by searching backwards */
6134 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
6137 return loc.result + 1;
6141 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
6144 return mono_metadata_get_generic_param_row (image, token, &owner);
6148 * Memory is allocated from IMAGE's mempool.
6151 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
6152 MonoGenericContainer *container, MonoError *error)
6155 guint32 start_row, i, owner;
6156 mono_error_init (error);
6158 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6160 for (i = 0; i < container->type_argc; i++) {
6161 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6162 mono_loader_assert_no_error ();
6170 * mono_metadata_load_generic_params:
6172 * Load the type parameters from the type or method definition @token.
6174 * Use this method after parsing a type or method definition to figure out whether it's a generic
6175 * type / method. When parsing a method definition, @parent_container points to the generic container
6176 * of the current class, if any.
6178 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6179 * creating the type.
6181 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6183 * LOCKING: Acquires the loader lock
6186 MonoGenericContainer *
6187 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6189 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6190 guint32 cols [MONO_GENERICPARAM_SIZE];
6191 guint32 i, owner = 0, n;
6192 MonoGenericContainer *container;
6193 MonoGenericParamFull *params;
6194 MonoGenericContext *context;
6196 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6198 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6201 container = (MonoGenericContainer *)mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6202 container->owner.image = image; // Temporarily mark as anonymous, but this will be overriden by caller
6203 container->is_anonymous = TRUE;
6206 params = (MonoGenericParamFull *)g_realloc (params, sizeof (MonoGenericParamFull) * n);
6207 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6208 params [n - 1].param.owner = container;
6209 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6210 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6211 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6212 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6213 if (params [n - 1].param.num != n - 1)
6214 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6215 if (++i > tdef->rows)
6217 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6218 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6220 container->type_argc = n;
6221 container->type_params = (MonoGenericParamFull *)mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6222 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6224 container->parent = parent_container;
6226 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6227 container->is_method = 1;
6229 g_assert (container->parent == NULL || container->is_method);
6231 context = &container->context;
6232 if (container->is_method) {
6233 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6234 context->method_inst = mono_get_shared_generic_inst (container);
6236 context->class_inst = mono_get_shared_generic_inst (container);
6243 mono_get_shared_generic_inst (MonoGenericContainer *container)
6245 MonoType **type_argv;
6247 MonoGenericInst *nginst;
6250 type_argv = g_new0 (MonoType *, container->type_argc);
6251 helper = g_new0 (MonoType, container->type_argc);
6253 for (i = 0; i < container->type_argc; i++) {
6254 MonoType *t = &helper [i];
6256 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6257 t->data.generic_param = mono_generic_container_get_param (container, i);
6262 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6271 * mono_type_is_byref:
6272 * @type: the MonoType operated on
6274 * Returns: #TRUE if @type represents a type passed by reference,
6278 mono_type_is_byref (MonoType *type)
6284 * mono_type_get_type:
6285 * @type: the MonoType operated on
6287 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
6288 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
6291 mono_type_get_type (MonoType *type)
6297 * mono_type_get_signature:
6298 * @type: the MonoType operated on
6300 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
6302 * Returns: the MonoMethodSignature pointer that describes the signature
6303 * of the function pointer @type represents.
6305 MonoMethodSignature*
6306 mono_type_get_signature (MonoType *type)
6308 g_assert (type->type == MONO_TYPE_FNPTR);
6309 return type->data.method;
6313 * mono_type_get_class:
6314 * @type: the MonoType operated on
6316 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
6317 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
6320 * Returns: the MonoClass pointer that describes the class that @type represents.
6323 mono_type_get_class (MonoType *type)
6325 /* FIXME: review the runtime users before adding the assert here */
6326 return type->data.klass;
6330 * mono_type_get_array_type:
6331 * @type: the MonoType operated on
6333 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6335 * Returns: a MonoArrayType struct describing the array type that @type
6336 * represents. The info includes details such as rank, array element type
6337 * and the sizes and bounds of multidimensional arrays.
6340 mono_type_get_array_type (MonoType *type)
6342 return type->data.array;
6346 * mono_type_get_ptr_type:
6347 * @type: the MonoType operated on
6349 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6352 * Returns: the MonoType pointer that describes the type that @type
6353 * represents a pointer to.
6356 mono_type_get_ptr_type (MonoType *type)
6358 g_assert (type->type == MONO_TYPE_PTR);
6359 return type->data.type;
6363 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6365 /* FIXME: implement */
6370 * mono_type_is_struct:
6371 * @type: the MonoType operated on
6373 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6374 * or a basic type like System.Int32. #FALSE otherwise.
6377 mono_type_is_struct (MonoType *type)
6379 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6380 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6381 ((type->type == MONO_TYPE_GENERICINST) &&
6382 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6383 !type->data.generic_class->container_class->enumtype)));
6387 * mono_type_is_void:
6388 * @type: the MonoType operated on
6390 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6393 mono_type_is_void (MonoType *type)
6395 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6399 * mono_type_is_pointer:
6400 * @type: the MonoType operated on
6402 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6405 mono_type_is_pointer (MonoType *type)
6407 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6408 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6409 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6410 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6411 (type->type == MONO_TYPE_FNPTR)));
6415 * mono_type_is_reference:
6416 * @type: the MonoType operated on
6418 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6421 mono_type_is_reference (MonoType *type)
6423 return (type && (((type->type == MONO_TYPE_STRING) ||
6424 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6425 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6426 ((type->type == MONO_TYPE_GENERICINST) &&
6427 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6431 * mono_signature_get_return_type:
6432 * @sig: the method signature inspected
6434 * Returns: the return type of the method signature @sig
6437 mono_signature_get_return_type (MonoMethodSignature *sig)
6443 * mono_signature_get_params:
6444 * @sig: the method signature inspected
6445 * #iter: pointer to an iterator
6447 * Iterates over the parameters for the method signature @sig.
6448 * A void* pointer must be initualized to #NULL to start the iteration
6449 * and it's address is passed to this function repeteadly until it returns
6452 * Returns: the next parameter type of the method signature @sig,
6453 * #NULL when finished.
6456 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6462 /* start from the first */
6463 if (sig->param_count) {
6464 *iter = &sig->params [0];
6465 return sig->params [0];
6471 type = (MonoType **)*iter;
6473 if (type < &sig->params [sig->param_count]) {
6481 * mono_signature_get_param_count:
6482 * @sig: the method signature inspected
6484 * Returns: the number of parameters in the method signature @sig.
6487 mono_signature_get_param_count (MonoMethodSignature *sig)
6489 return sig->param_count;
6493 * mono_signature_get_call_conv:
6494 * @sig: the method signature inspected
6496 * Returns: the call convention of the method signature @sig.
6499 mono_signature_get_call_conv (MonoMethodSignature *sig)
6501 return sig->call_convention;
6505 * mono_signature_vararg_start:
6506 * @sig: the method signature inspected
6508 * Returns: the number of the first vararg parameter in the
6509 * method signature @sig. -1 if this is not a vararg signature.
6512 mono_signature_vararg_start (MonoMethodSignature *sig)
6514 return sig->sentinelpos;
6518 * mono_signature_is_instance:
6519 * @sig: the method signature inspected
6521 * Returns: #TRUE if this the method signature @sig has an implicit
6522 * first instance argument. #FALSE otherwise.
6525 mono_signature_is_instance (MonoMethodSignature *sig)
6527 return sig->hasthis;
6531 * mono_signature_param_is_out
6532 * @sig: the method signature inspected
6533 * @param_num: the 0-based index of the inspected parameter
6535 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6539 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6541 g_assert (param_num >= 0 && param_num < sig->param_count);
6542 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6546 * mono_signature_explicit_this:
6547 * @sig: the method signature inspected
6549 * Returns: #TRUE if this the method signature @sig has an explicit
6550 * instance argument. #FALSE otherwise.
6553 mono_signature_explicit_this (MonoMethodSignature *sig)
6555 return sig->explicit_this;
6558 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6560 mono_aligned_addr_hash (gconstpointer ptr)
6562 return GPOINTER_TO_UINT (ptr) >> 3;
6566 * If @field belongs to an inflated generic class, return the corresponding field of the
6567 * generic type definition class.
6570 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6575 if (!field->parent->generic_class)
6578 gtd = field->parent->generic_class->container_class;
6579 offset = field - field->parent->fields;
6580 return gtd->fields + offset;
6584 * If @event belongs to an inflated generic class, return the corresponding event of the
6585 * generic type definition class.
6588 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6593 if (!event->parent->generic_class)
6596 gtd = event->parent->generic_class->container_class;
6597 offset = event - event->parent->ext->events;
6598 return gtd->ext->events + offset;
6602 * If @property belongs to an inflated generic class, return the corresponding property of the
6603 * generic type definition class.
6606 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6611 if (!property->parent->generic_class)
6614 gtd = property->parent->generic_class->container_class;
6615 offset = property - property->parent->ext->properties;
6616 return gtd->ext->properties + offset;
6620 mono_method_get_wrapper_cache (MonoMethod *method)
6622 if (method->is_inflated) {
6623 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
6624 return &imethod->owner->wrapper_caches;
6626 return &method->klass->image->wrapper_caches;
6630 // 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.
6633 * mono_find_image_set_owner:
6635 * Find the imageset, if any, which a given pointer is located in the memory of.
6638 mono_find_image_set_owner (void *ptr)
6640 MonoImageSet *owner = NULL;
6647 for (i = 0; !owner && i < image_sets->len; ++i) {
6648 MonoImageSet *set = (MonoImageSet *)g_ptr_array_index (image_sets, i);
6649 if (mono_mempool_contains_addr (set->mempool, ptr))
6654 image_sets_unlock ();