mono/metadata/metadata-internals.h

   1 /**
   2  * \file
   3  */
   4
   5 #ifndef __MONO_METADATA_INTERNALS_H__
   6 #define __MONO_METADATA_INTERNALS_H__
   7
   8 #include "mono/utils/mono-forward-internal.h"
   9 #include "mono/metadata/image.h"
  10 #include "mono/metadata/blob.h"
  11 #include "mono/metadata/cil-coff.h"
  12 #include "mono/metadata/mempool.h"
  13 #include "mono/metadata/domain-internals.h"
  14 #include "mono/metadata/mono-hash.h"
  15 #include "mono/utils/mono-compiler.h"
  16 #include "mono/utils/mono-dl.h"
  17 #include "mono/utils/monobitset.h"
  18 #include "mono/utils/mono-property-hash.h"
  19 #include "mono/utils/mono-value-hash.h"
  20 #include <mono/utils/mono-error.h>
  21 #include "mono/utils/mono-conc-hashtable.h"
  22 #include "mono/utils/refcount.h"
  23
  24 struct _MonoType {
  25         union {
  26                 MonoClass *klass; /* for VALUETYPE and CLASS */
  27                 MonoType *type;   /* for PTR */
  28                 MonoArrayType *array; /* for ARRAY */
  29                 MonoMethodSignature *method;
  30                 MonoGenericParam *generic_param; /* for VAR and MVAR */
  31                 MonoGenericClass *generic_class; /* for GENERICINST */
  32         } data;
  33         unsigned int attrs    : 16; /* param attributes or field flags */
  34         MonoTypeEnum type     : 8;
  35         unsigned int has_cmods : 1;
  36         unsigned int byref    : 1;
  37         unsigned int pinned   : 1;  /* valid when included in a local var signature */
  38 };
  39
  40 typedef struct {
  41         unsigned int required : 1;
  42         MonoType *type;
  43 } MonoSingleCustomMod;
  44
  45 /* Aggregate custom modifiers can happen if a generic VAR or MVAR is inflated,
  46  * and both the VAR and the type that will be used to inflated it have custom
  47  * modifiers, but they come from different images.  (e.g. inflating 'class G<T>
  48  * {void Test (T modopt(IsConst) t);}' with 'int32 modopt(IsLong)' where G is
  49  * in image1 and the int32 is in image2.)
  50  *
  51  * Moreover, we can't just store an image and a type token per modifier, because
  52  * Roslyn and C++/CLI sometimes create modifiers that mention generic parameters that must be inflated, like:
  53  *     void .CL1`1.Test(!0 modopt(System.Nullable`1<!0>))
  54  * So we have to store a resolved MonoType*.
  55  *
  56  * Because the types come from different images, we allocate the aggregate
  57  * custom modifiers container object in the mempool of a MonoImageSet to ensure
  58  * that it doesn't have dangling image pointers.
  59  */
  60 typedef struct {
  61         uint8_t count;
  62         MonoSingleCustomMod modifiers[1]; /* Actual length is count */
  63 } MonoAggregateModContainer;
  64
  65 /* ECMA says upto 64 custom modifiers.  It's possible we could see more at
  66  * runtime due to modifiers being appended together when we inflate type.  In
  67  * that case we should revisit the places where this define is used to make
  68  * sure that we don't blow up the stack (or switch to heap allocation for
  69  * temporaries).
  70  */
  71 #define MONO_MAX_EXPECTED_CMODS 64
  72
  73 typedef struct {
  74         MonoType unmodified;
  75         gboolean is_aggregate;
  76         union {
  77                 MonoCustomModContainer cmods;
  78                 /* the actual aggregate modifiers are in a MonoImageSet mempool
  79                  * that includes all the images of all the modifier types and
  80                  * also the type that this aggregate container is a part of.*/
  81                 MonoAggregateModContainer *amods;
  82         } mods;
  83 } MonoTypeWithModifiers;
  84
  85 gboolean
  86 mono_type_is_aggregate_mods (const MonoType *t);
  87
  88 static inline void
  89 mono_type_with_mods_init (MonoType *dest, uint8_t num_mods, gboolean is_aggregate)
  90 {
  91         if (num_mods == 0) {
  92                 dest->has_cmods = 0;
  93                 return;
  94         }
  95         dest->has_cmods = 1;
  96         MonoTypeWithModifiers *dest_full = (MonoTypeWithModifiers *)dest;
  97         dest_full->is_aggregate = !!is_aggregate;
  98         if (is_aggregate)
  99                 dest_full->mods.amods = NULL;
 100         else
 101                 dest_full->mods.cmods.count = num_mods;
 102 }
 103
 104 MonoCustomModContainer *
 105 mono_type_get_cmods (const MonoType *t);
 106
 107 MonoAggregateModContainer *
 108 mono_type_get_amods (const MonoType *t);
 109
 110 void
 111 mono_type_set_amods (MonoType *t, MonoAggregateModContainer *amods);
 112
 113 static inline uint8_t
 114 mono_type_custom_modifier_count (const MonoType *t)
 115 {
 116         if (!t->has_cmods)
 117                 return 0;
 118         MonoTypeWithModifiers *full = (MonoTypeWithModifiers *)t;
 119         if (full->is_aggregate)
 120                 return full->mods.amods->count;
 121         else
 122                 return full->mods.cmods.count;
 123 }
 124
 125 MonoType *
 126 mono_type_get_custom_modifier (const MonoType *ty, uint8_t idx, gboolean *required, MonoError *error);
 127
 128 // Note: sizeof (MonoType) is dangerous. It can copy the num_mods
 129 // field without copying the variably sized array. This leads to
 130 // memory unsafety on the stack and/or heap, when we try to traverse
 131 // this array.
 132 //
 133 // Use mono_sizeof_monotype
 134 // to get the size of the memory to copy.
 135 #define MONO_SIZEOF_TYPE sizeof (MonoType)
 136
 137 size_t
 138 mono_sizeof_type_with_mods (uint8_t num_mods, gboolean aggregate);
 139
 140 size_t
 141 mono_sizeof_type (const MonoType *ty);
 142
 143 size_t
 144 mono_sizeof_aggregate_modifiers (uint8_t num_mods);
 145
 146 MonoAggregateModContainer *
 147 mono_metadata_get_canonical_aggregate_modifiers (MonoAggregateModContainer *candidate);
 148
 149 #define MONO_SECMAN_FLAG_INIT(x)                (x & 0x2)
 150 #define MONO_SECMAN_FLAG_GET_VALUE(x)           (x & 0x1)
 151 #define MONO_SECMAN_FLAG_SET_VALUE(x,y)         do { x = ((y) ? 0x3 : 0x2); } while (0)
 152
 153 #define MONO_PUBLIC_KEY_TOKEN_LENGTH    17
 154
 155 #define MONO_PROCESSOR_ARCHITECTURE_NONE 0
 156 #define MONO_PROCESSOR_ARCHITECTURE_MSIL 1
 157 #define MONO_PROCESSOR_ARCHITECTURE_X86 2
 158 #define MONO_PROCESSOR_ARCHITECTURE_IA64 3
 159 #define MONO_PROCESSOR_ARCHITECTURE_AMD64 4
 160 #define MONO_PROCESSOR_ARCHITECTURE_ARM 5
 161
 162 struct _MonoAssemblyName {
 163         const char *name;
 164         const char *culture;
 165         const char *hash_value;
 166         const mono_byte* public_key;
 167         // string of 16 hex chars + 1 NULL
 168         mono_byte public_key_token [MONO_PUBLIC_KEY_TOKEN_LENGTH];
 169         uint32_t hash_alg;
 170         uint32_t hash_len;
 171         uint32_t flags;
 172 #ifdef ENABLE_NETCORE
 173         int major, minor, build, revision, arch;
 174 #else
 175         uint16_t major, minor, build, revision, arch;
 176 #endif
 177 };
 178
 179 struct MonoTypeNameParse {
 180         char *name_space;
 181         char *name;
 182         MonoAssemblyName assembly;
 183         GList *modifiers; /* 0 -> byref, -1 -> pointer, > 0 -> array rank */
 184         GPtrArray *type_arguments;
 185         GList *nested;
 186 };
 187
 188
 189 typedef enum MonoAssemblyContextKind {
 190         /* Default assembly context: Load(String) and assembly references */
 191         MONO_ASMCTX_DEFAULT = 0,
 192         /* Reflection-only only context: ReflectionOnlyLoad and ReeflectionOnlyLoadFrom */
 193         MONO_ASMCTX_REFONLY = 1,
 194         /* LoadFrom context: LoadFrom() and references */
 195         MONO_ASMCTX_LOADFROM = 2,
 196         /* Individual assembly context (.NET Framework docs call this "not in
 197          * any context"): LoadFile(String) and Load(byte[]) are here.
 198          */
 199         MONO_ASMCTX_INDIVIDUAL = 3,
 200
 201         MONO_ASMCTX_LAST = 3
 202 } MonoAssemblyContextKind;
 203
 204 typedef struct _MonoAssemblyContext {
 205         MonoAssemblyContextKind kind;
 206 } MonoAssemblyContext;
 207
 208 struct _MonoAssembly {
 209         /*
 210          * The number of appdomains which have this assembly loaded plus the number of
 211          * assemblies referencing this assembly through an entry in their image->references
 212          * arrays. The latter is needed because entries in the image->references array
 213          * might point to assemblies which are only loaded in some appdomains, and without
 214          * the additional reference, they can be freed at any time.
 215          * The ref_count is initially 0.
 216          */
 217         int ref_count; /* use atomic operations only */
 218         char *basedir;
 219         MonoAssemblyName aname;
 220         MonoImage *image;
 221         GSList *friend_assembly_names; /* Computed by mono_assembly_load_friends () */
 222         guint8 friend_assembly_names_inited;
 223         guint8 in_gac;
 224         guint8 dynamic;
 225         guint8 corlib_internal;
 226         MonoAssemblyContext context;
 227         guint8 wrap_non_exception_throws;
 228         guint8 wrap_non_exception_throws_inited;
 229         guint8 jit_optimizer_disabled;
 230         guint8 jit_optimizer_disabled_inited;
 231         /* security manager flags (one bit is for lazy initialization) */
 232         guint32 ecma:2;         /* Has the ECMA key */
 233         guint32 aptc:2;         /* Has the [AllowPartiallyTrustedCallers] attributes */
 234         guint32 fulltrust:2;    /* Has FullTrust permission */
 235         guint32 unmanaged:2;    /* Has SecurityPermissionFlag.UnmanagedCode permission */
 236         guint32 skipverification:2;     /* Has SecurityPermissionFlag.SkipVerification permission */
 237 };
 238
 239 typedef struct {
 240         /*
 241          * indexed by MonoMethodSignature
 242          * Protected by the marshal lock
 243          */
 244         GHashTable *delegate_invoke_cache;
 245         GHashTable *delegate_begin_invoke_cache;
 246         GHashTable *delegate_end_invoke_cache;
 247         GHashTable *runtime_invoke_signature_cache;
 248         GHashTable *runtime_invoke_sig_cache;
 249
 250         /*
 251          * indexed by SignaturePointerPair
 252          */
 253         GHashTable *delegate_abstract_invoke_cache;
 254
 255         /*
 256          * indexed by MonoMethod pointers
 257          * Protected by the marshal lock
 258          */
 259         GHashTable *runtime_invoke_method_cache;
 260         GHashTable *managed_wrapper_cache;
 261
 262         GHashTable *native_wrapper_cache;
 263         GHashTable *native_wrapper_aot_cache;
 264         GHashTable *native_wrapper_check_cache;
 265         GHashTable *native_wrapper_aot_check_cache;
 266
 267         GHashTable *native_func_wrapper_aot_cache;
 268         GHashTable *remoting_invoke_cache;
 269         GHashTable *synchronized_cache;
 270         GHashTable *unbox_wrapper_cache;
 271         GHashTable *cominterop_invoke_cache;
 272         GHashTable *cominterop_wrapper_cache; /* LOCKING: marshal lock */
 273         GHashTable *thunk_invoke_cache;
 274 } MonoWrapperCaches;
 275
 276 typedef struct {
 277         const char* data;
 278         guint32  size;
 279 } MonoStreamHeader;
 280
 281 struct _MonoTableInfo {
 282         const char *base;
 283         guint       rows     : 24;
 284         guint       row_size : 8;
 285
 286         /*
 287          * Tables contain up to 9 columns and the possible sizes of the
 288          * fields in the documentation are 1, 2 and 4 bytes.  So we
 289          * can encode in 2 bits the size.
 290          *
 291          * A 32 bit value can encode the resulting size
 292          *
 293          * The top eight bits encode the number of columns in the table.
 294          * we only need 4, but 8 is aligned no shift required.
 295          */
 296         guint32   size_bitfield;
 297 };
 298
 299 #define REFERENCE_MISSING ((gpointer) -1)
 300
 301 typedef struct _MonoDllMap MonoDllMap;
 302
 303 typedef struct {
 304         gboolean (*match) (MonoImage*);
 305         gboolean (*load_pe_data) (MonoImage*);
 306         gboolean (*load_cli_data) (MonoImage*);
 307         gboolean (*load_tables) (MonoImage*);
 308 } MonoImageLoader;
 309
 310 /* Represents the physical bytes (usually on disk, but could be in memory) for
 311  * an image.
 312  *
 313  * The MonoImageStorage owns the raw data for an image and is responsible for
 314  * cleanup.
 315  *
 316  * May be shared by multiple MonoImage objects if they opened the same
 317  * underlying file or byte blob in memory.
 318  *
 319  * There is an abstract string key (usually a file path, but could be formed in
 320  * other ways) that is used to share MonoImageStorage objects among images.
 321  *
 322  */
 323 typedef struct {
 324         MonoRefCount ref;
 325
 326         /* key used for lookups.  owned by this image storage. */
 327         char *key;
 328
 329         /* If the raw data was allocated from a source such as mmap, the allocator may store resource tracking information here. */
 330         void *raw_data_handle;
 331         char *raw_data;
 332         guint32 raw_data_len;
 333         guint8 raw_buffer_used    : 1;
 334         guint8 raw_data_allocated : 1;
 335         guint8 fileio_used : 1;
 336
 337 #ifdef HOST_WIN32
 338         /* Module was loaded using LoadLibrary. */
 339         guint8 is_module_handle : 1;
 340
 341         /* Module entry point is _CorDllMain. */
 342         guint8 has_entry_point : 1;
 343 #endif
 344 } MonoImageStorage;
 345
 346 struct _MonoImage {
 347         /*
 348          * This count is incremented during these situations:
 349          *   - An assembly references this MonoImage though its 'image' field
 350          *   - This MonoImage is present in the 'files' field of an image
 351          *   - This MonoImage is present in the 'modules' field of an image
 352          *   - A thread is holding a temporary reference to this MonoImage between
 353          *     calls to mono_image_open and mono_image_close ()
 354          */
 355         int   ref_count;
 356
 357         MonoImageStorage *storage;
 358
 359         /* Whenever this is a dynamically emitted module */
 360         guint8 dynamic : 1;
 361
 362         /* Whenever this is a reflection only image */
 363         guint8 ref_only : 1;
 364
 365         /* Whenever this image contains uncompressed metadata */
 366         guint8 uncompressed_metadata : 1;
 367
 368         /* Whenever this image contains metadata only without PE data */
 369         guint8 metadata_only : 1;
 370
 371         /*  Whether this image belongs to load-from context */
 372         guint8 load_from_context: 1;
 373
 374         guint8 checked_module_cctor : 1;
 375         guint8 has_module_cctor : 1;
 376
 377         guint8 idx_string_wide : 1;
 378         guint8 idx_guid_wide : 1;
 379         guint8 idx_blob_wide : 1;
 380
 381         /* Whenever this image is considered as platform code for the CoreCLR security model */
 382         guint8 core_clr_platform_code : 1;
 383
 384         /* The path to the file for this image or an arbitrary name for images loaded from data. */
 385         char *name;
 386
 387         /* The path to the file for this image or NULL */
 388         char *filename;
 389
 390         /* The assembly name reported in the file for this image (expected to be NULL for a netmodule) */
 391         const char *assembly_name;
 392
 393         /* The module name reported in the file for this image (could be NULL for a malformed file) */
 394         const char *module_name;
 395         guint32 time_date_stamp;
 396
 397         char *version;
 398         gint16 md_version_major, md_version_minor;
 399         char *guid;
 400         MonoCLIImageInfo    *image_info;
 401         MonoMemPool         *mempool; /*protected by the image lock*/
 402
 403         char                *raw_metadata;
 404
 405         MonoStreamHeader     heap_strings;
 406         MonoStreamHeader     heap_us;
 407         MonoStreamHeader     heap_blob;
 408         MonoStreamHeader     heap_guid;
 409         MonoStreamHeader     heap_tables;
 410         MonoStreamHeader     heap_pdb;
 411
 412         const char          *tables_base;
 413
 414         /* For PPDB files */
 415         guint64 referenced_tables;
 416         int *referenced_table_rows;
 417
 418         /**/
 419         MonoTableInfo        tables [MONO_TABLE_NUM];
 420
 421         /*
 422          * references is initialized only by using the mono_assembly_open
 423          * function, and not by using the lowlevel mono_image_open.
 424          *
 425          * It is NULL terminated.
 426          */
 427         MonoAssembly **references;
 428         int nreferences;
 429
 430         /* Code files in the assembly. The main assembly has a "file" table and also a "module"
 431          * table, where the module table is a subset of the file table. We track both lists,
 432          * and because we can lazy-load them at different times we reference-increment both.
 433          */
 434         MonoImage **modules;
 435         guint32 module_count;
 436         gboolean *modules_loaded;
 437
 438         MonoImage **files;
 439         guint32 file_count;
 440
 441         MonoAotModule *aot_module;
 442
 443         guint8 aotid[16];
 444
 445         /*
 446          * The Assembly this image was loaded from.
 447          */
 448         MonoAssembly *assembly;
 449
 450         /*
 451          * Indexed by method tokens and typedef tokens.
 452          */
 453         GHashTable *method_cache; /*protected by the image lock*/
 454         MonoInternalHashTable class_cache;
 455
 456         /* Indexed by memberref + methodspec tokens */
 457         GHashTable *methodref_cache; /*protected by the image lock*/
 458
 459         /*
 460          * Indexed by fielddef and memberref tokens
 461          */
 462         MonoConcurrentHashTable *field_cache; /*protected by the image lock*/
 463
 464         /* indexed by typespec tokens. */
 465         MonoConcurrentHashTable *typespec_cache; /* protected by the image lock */
 466         /* indexed by token */
 467         GHashTable *memberref_signatures;
 468
 469         /* Indexed by blob heap indexes */
 470         GHashTable *method_signatures;
 471
 472         /*
 473          * Indexes namespaces to hash tables that map class name to typedef token.
 474          */
 475         GHashTable *name_cache;  /*protected by the image lock*/
 476
 477         /*
 478          * Indexed by MonoClass
 479          */
 480         GHashTable *array_cache;
 481         GHashTable *ptr_cache;
 482
 483         GHashTable *szarray_cache;
 484         /* This has a separate lock to improve scalability */
 485         mono_mutex_t szarray_cache_lock;
 486
 487         /*
 488          * indexed by SignaturePointerPair
 489          */
 490         GHashTable *delegate_bound_static_invoke_cache;
 491         GHashTable *native_func_wrapper_cache;
 492
 493         /*
 494          * indexed by MonoMethod pointers
 495          */
 496         GHashTable *wrapper_param_names;
 497         GHashTable *array_accessor_cache;
 498
 499         /*
 500          * indexed by MonoClass pointers
 501          */
 502         GHashTable *ldfld_wrapper_cache;
 503         GHashTable *ldflda_wrapper_cache;
 504         GHashTable *stfld_wrapper_cache;
 505         GHashTable *isinst_cache;
 506
 507         GHashTable *icall_wrapper_cache;
 508         GHashTable *castclass_cache;
 509         GHashTable *proxy_isinst_cache;
 510         GHashTable *rgctx_template_hash; /* LOCKING: templates lock */
 511
 512         /* Contains rarely used fields of runtime structures belonging to this image */
 513         MonoPropertyHash *property_hash;
 514
 515         void *reflection_info;
 516
 517         /*
 518          * user_info is a public field and is not touched by the
 519          * metadata engine
 520          */
 521         void *user_info;
 522
 523         /* dll map entries */
 524         MonoDllMap *dll_map;
 525
 526         /* interfaces IDs from this image */
 527         /* protected by the classes lock */
 528         MonoBitSet *interface_bitset;
 529
 530         /* when the image is being closed, this is abused as a list of
 531            malloc'ed regions to be freed. */
 532         GSList *reflection_info_unregister_classes;
 533
 534         /* List of dependent image sets containing this image */
 535         /* Protected by image_sets_lock */
 536         GSList *image_sets;
 537
 538         /* Caches for wrappers that DO NOT reference generic */
 539         /* arguments */
 540         MonoWrapperCaches wrapper_caches;
 541
 542         /* Pre-allocated anon generic params for the first N generic
 543          * parameters, for a small N */
 544         MonoGenericParam *var_gparam_cache_fast;
 545         MonoGenericParam *mvar_gparam_cache_fast;
 546         /* Anon generic parameters past N, if needed */
 547         MonoConcurrentHashTable *var_gparam_cache;
 548         MonoConcurrentHashTable *mvar_gparam_cache;
 549
 550         /* Maps malloc-ed char* pinvoke scope -> MonoDl* */
 551         GHashTable *pinvoke_scopes;
 552
 553         /* Maps malloc-ed char* pinvoke scope -> malloced-ed char* filename */
 554         GHashTable *pinvoke_scope_filenames;
 555
 556         /* Indexed by MonoGenericParam pointers */
 557         GHashTable **gshared_types;
 558         /* The length of the above array */
 559         int gshared_types_len;
 560
 561         /* The loader used to load this image */
 562         MonoImageLoader *loader;
 563
 564         // Containers for MonoGenericParams associated with this image but not with any specific class or method. Created on demand.
 565         // This could happen, for example, for MonoTypes associated with TypeSpec table entries.
 566         MonoGenericContainer *anonymous_generic_class_container;
 567         MonoGenericContainer *anonymous_generic_method_container;
 568
 569         gboolean weak_fields_inited;
 570         /* Contains 1 based indexes */
 571         GHashTable *weak_field_indexes;
 572
 573         /*
 574          * No other runtime locks must be taken while holding this lock.
 575          * It's meant to be used only to mutate and query structures part of this image.
 576          */
 577         mono_mutex_t    lock;
 578 };
 579
 580 /*
 581  * Generic instances and aggregated custom modifiers depend on many images, and they need to be deleted if one
 582  * of the images they depend on is unloaded. For example,
 583  * List<Foo> depends on both List's image and Foo's image.
 584  * A MonoImageSet is the owner of all generic instances depending on the same set of
 585  * images.
 586  */
 587 typedef struct {
 588         int nimages;
 589         MonoImage **images;
 590
 591         // Generic-specific caches
 592         GHashTable *ginst_cache, *gmethod_cache, *gsignature_cache;
 593         MonoConcurrentHashTable *gclass_cache;
 594
 595         /* mirror caches of ones already on MonoImage. These ones contain generics */
 596         GHashTable *szarray_cache, *array_cache, *ptr_cache;
 597
 598         MonoWrapperCaches wrapper_caches;
 599
 600         GHashTable *aggregate_modifiers_cache;
 601
 602         mono_mutex_t    lock;
 603
 604         /*
 605          * Memory for generic instances owned by this image set should be allocated from
 606          * this mempool, using the mono_image_set_alloc family of functions.
 607          */
 608         MonoMemPool         *mempool;
 609 } MonoImageSet;
 610
 611 enum {
 612         MONO_SECTION_TEXT,
 613         MONO_SECTION_RSRC,
 614         MONO_SECTION_RELOC,
 615         MONO_SECTION_MAX
 616 };
 617
 618 typedef struct {
 619         GHashTable *hash;
 620         char *data;
 621         guint32 alloc_size; /* malloced bytes */
 622         guint32 index;
 623         guint32 offset; /* from start of metadata */
 624 } MonoDynamicStream;
 625
 626 typedef struct {
 627         guint32 alloc_rows;
 628         guint32 rows;
 629         guint8  row_size; /*  calculated later with column_sizes */
 630         guint8  columns;
 631         guint32 next_idx;
 632         guint32 *values; /* rows * columns */
 633 } MonoDynamicTable;
 634
 635 /* "Dynamic" assemblies and images arise from System.Reflection.Emit */
 636 struct _MonoDynamicAssembly {
 637         MonoAssembly assembly;
 638         char *strong_name;
 639         guint32 strong_name_size;
 640         guint8 run;
 641         guint8 save;
 642         MonoDomain *domain;
 643 };
 644
 645 struct _MonoDynamicImage {
 646         MonoImage image;
 647         guint32 meta_size;
 648         guint32 text_rva;
 649         guint32 metadata_rva;
 650         guint32 image_base;
 651         guint32 cli_header_offset;
 652         guint32 iat_offset;
 653         guint32 idt_offset;
 654         guint32 ilt_offset;
 655         guint32 imp_names_offset;
 656         struct {
 657                 guint32 rva;
 658                 guint32 size;
 659                 guint32 offset;
 660                 guint32 attrs;
 661         } sections [MONO_SECTION_MAX];
 662         GHashTable *typespec;
 663         GHashTable *typeref;
 664         GHashTable *handleref;
 665         MonoGHashTable *tokens;
 666         GHashTable *blob_cache;
 667         GHashTable *standalonesig_cache;
 668         GList *array_methods;
 669         GPtrArray *gen_params;
 670         MonoGHashTable *token_fixups;
 671         GHashTable *method_to_table_idx;
 672         GHashTable *field_to_table_idx;
 673         GHashTable *method_aux_hash;
 674         GHashTable *vararg_aux_hash;
 675         MonoGHashTable *generic_def_objects;
 676         /*
 677          * Maps final token values to the object they describe.
 678          */
 679         MonoGHashTable *remapped_tokens;
 680         gboolean run;
 681         gboolean save;
 682         gboolean initial_image;
 683         guint32 pe_kind, machine;
 684         char *strong_name;
 685         guint32 strong_name_size;
 686         char *win32_res;
 687         guint32 win32_res_size;
 688         guint8 *public_key;
 689         int public_key_len;
 690         MonoDynamicStream sheap;
 691         MonoDynamicStream code; /* used to store method headers and bytecode */
 692         MonoDynamicStream resources; /* managed embedded resources */
 693         MonoDynamicStream us;
 694         MonoDynamicStream blob;
 695         MonoDynamicStream tstream;
 696         MonoDynamicStream guid;
 697         MonoDynamicTable tables [MONO_TABLE_NUM];
 698         MonoClass *wrappers_type; /*wrappers are bound to this type instead of <Module>*/
 699 };
 700
 701 /* Contains information about assembly binding */
 702 typedef struct _MonoAssemblyBindingInfo {
 703         char *name;
 704         char *culture;
 705         guchar public_key_token [MONO_PUBLIC_KEY_TOKEN_LENGTH];
 706         int major;
 707         int minor;
 708         AssemblyVersionSet old_version_bottom;
 709         AssemblyVersionSet old_version_top;
 710         AssemblyVersionSet new_version;
 711         guint has_old_version_bottom : 1;
 712         guint has_old_version_top : 1;
 713         guint has_new_version : 1;
 714         guint is_valid : 1;
 715         gint32 domain_id; /*Needed to unload per-domain binding*/
 716 } MonoAssemblyBindingInfo;
 717
 718 struct _MonoMethodHeader {
 719         const unsigned char  *code;
 720 #ifdef MONO_SMALL_CONFIG
 721         guint16      code_size;
 722 #else
 723         guint32      code_size;
 724 #endif
 725         guint16      max_stack   : 15;
 726         unsigned int is_transient: 1; /* mono_metadata_free_mh () will actually free this header */
 727         unsigned int num_clauses : 15;
 728         /* if num_locals != 0, then the following apply: */
 729         unsigned int init_locals : 1;
 730         guint16      num_locals;
 731         MonoExceptionClause *clauses;
 732         MonoBitSet  *volatile_args;
 733         MonoBitSet  *volatile_locals;
 734         MonoType    *locals [MONO_ZERO_LEN_ARRAY];
 735 };
 736
 737 typedef struct {
 738         const unsigned char *code;
 739         guint32      code_size;
 740         guint16      max_stack;
 741         gboolean     has_clauses;
 742         gboolean     has_locals;
 743 } MonoMethodHeaderSummary;
 744
 745 // FIXME? offsetof (MonoMethodHeader, locals)?
 746 #define MONO_SIZEOF_METHOD_HEADER (sizeof (struct _MonoMethodHeader) - MONO_ZERO_LEN_ARRAY * SIZEOF_VOID_P)
 747
 748 struct _MonoMethodSignature {
 749         MonoType     *ret;
 750 #ifdef MONO_SMALL_CONFIG
 751         guint8        param_count;
 752         gint8         sentinelpos;
 753         unsigned int  generic_param_count : 5;
 754 #else
 755         guint16       param_count;
 756         gint16        sentinelpos;
 757         unsigned int  generic_param_count : 16;
 758 #endif
 759         unsigned int  call_convention     : 6;
 760         unsigned int  hasthis             : 1;
 761         unsigned int  explicit_this       : 1;
 762         unsigned int  pinvoke             : 1;
 763         unsigned int  is_inflated         : 1;
 764         unsigned int  has_type_parameters : 1;
 765         MonoType     *params [MONO_ZERO_LEN_ARRAY];
 766 };
 767
 768 /*
 769  * AOT cache configuration loaded from config files.
 770  * Doesn't really belong here.
 771  */
 772 typedef struct {
 773         /*
 774          * Enable aot caching for applications whose main assemblies are in
 775          * this list.
 776          */
 777         GSList *apps;
 778         GSList *assemblies;
 779         char *aot_options;
 780 } MonoAotCacheConfig;
 781
 782 #define MONO_SIZEOF_METHOD_SIGNATURE (sizeof (struct _MonoMethodSignature) - MONO_ZERO_LEN_ARRAY * SIZEOF_VOID_P)
 783
 784 static inline gboolean
 785 image_is_dynamic (MonoImage *image)
 786 {
 787 #ifdef DISABLE_REFLECTION_EMIT
 788         return FALSE;
 789 #else
 790         return image->dynamic;
 791 #endif
 792 }
 793
 794 static inline gboolean
 795 assembly_is_dynamic (MonoAssembly *assembly)
 796 {
 797 #ifdef DISABLE_REFLECTION_EMIT
 798         return FALSE;
 799 #else
 800         return assembly->dynamic;
 801 #endif
 802 }
 803
 804 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
 805 guint mono_aligned_addr_hash (gconstpointer ptr);
 806
 807 void
 808 mono_image_check_for_module_cctor (MonoImage *image);
 809
 810 gpointer
 811 mono_image_alloc  (MonoImage *image, guint size);
 812
 813 gpointer
 814 mono_image_alloc0 (MonoImage *image, guint size);
 815
 816 #define mono_image_new0(image,type,size) ((type *) mono_image_alloc0 (image, sizeof (type)* (size)))
 817
 818 char*
 819 mono_image_strdup (MonoImage *image, const char *s);
 820
 821 char*
 822 mono_image_strdup_vprintf (MonoImage *image, const char *format, va_list args);
 823
 824 char*
 825 mono_image_strdup_printf (MonoImage *image, const char *format, ...) MONO_ATTR_FORMAT_PRINTF(2,3);
 826
 827 GList*
 828 mono_g_list_prepend_image (MonoImage *image, GList *list, gpointer data);
 829
 830 GSList*
 831 mono_g_slist_append_image (MonoImage *image, GSList *list, gpointer data);
 832
 833 void
 834 mono_image_lock (MonoImage *image);
 835
 836 void
 837 mono_image_unlock (MonoImage *image);
 838
 839 gpointer
 840 mono_image_property_lookup (MonoImage *image, gpointer subject, guint32 property);
 841
 842 void
 843 mono_image_property_insert (MonoImage *image, gpointer subject, guint32 property, gpointer value);
 844
 845 void
 846 mono_image_property_remove (MonoImage *image, gpointer subject);
 847
 848 gboolean
 849 mono_image_close_except_pools (MonoImage *image);
 850
 851 void
 852 mono_image_close_finish (MonoImage *image);
 853
 854 typedef void  (*MonoImageUnloadFunc) (MonoImage *image, gpointer user_data);
 855
 856 void
 857 mono_install_image_unload_hook (MonoImageUnloadFunc func, gpointer user_data);
 858
 859 void
 860 mono_remove_image_unload_hook (MonoImageUnloadFunc func, gpointer user_data);
 861
 862 void
 863 mono_install_image_loader (const MonoImageLoader *loader);
 864
 865 void
 866 mono_image_append_class_to_reflection_info_set (MonoClass *klass);
 867
 868 gpointer
 869 mono_image_set_alloc  (MonoImageSet *set, guint size);
 870
 871 gpointer
 872 mono_image_set_alloc0 (MonoImageSet *set, guint size);
 873
 874 void
 875 mono_image_set_lock (MonoImageSet *set);
 876
 877 void
 878 mono_image_set_unlock (MonoImageSet *set);
 879
 880 char*
 881 mono_image_set_strdup (MonoImageSet *set, const char *s);
 882
 883 MonoImageSet *
 884 mono_metadata_get_image_set_for_aggregate_modifiers (MonoAggregateModContainer *amods);
 885
 886 #define mono_image_set_new0(image,type,size) ((type *) mono_image_set_alloc0 (image, sizeof (type)* (size)))
 887
 888 gboolean
 889 mono_image_load_cli_header (MonoImage *image, MonoCLIImageInfo *iinfo);
 890
 891 gboolean
 892 mono_image_load_metadata (MonoImage *image, MonoCLIImageInfo *iinfo);
 893
 894 const char*
 895 mono_metadata_string_heap_checked (MonoImage *meta, uint32_t table_index, MonoError *error);
 896 const char*
 897 mono_metadata_blob_heap_checked (MonoImage *meta, uint32_t table_index, MonoError *error);
 898 gboolean
 899 mono_metadata_decode_row_checked (const MonoImage *image, const MonoTableInfo *t, int idx, uint32_t *res, int res_size, MonoError *error);
 900
 901 MonoType*
 902 mono_metadata_get_shared_type (MonoType *type);
 903
 904 void
 905 mono_metadata_clean_for_image (MonoImage *image);
 906
 907 void
 908 mono_metadata_clean_generic_classes_for_image (MonoImage *image);
 909
 910 MONO_API void
 911 mono_metadata_cleanup (void);
 912
 913 const char *   mono_meta_table_name              (int table);
 914 void           mono_metadata_compute_table_bases (MonoImage *meta);
 915
 916 gboolean
 917 mono_metadata_interfaces_from_typedef_full  (MonoImage             *image,
 918                                                                                          guint32                table_index,
 919                                                                                          MonoClass           ***interfaces,
 920                                                                                          guint                 *count,
 921                                                                                          gboolean               heap_alloc_result,
 922                                                                                          MonoGenericContext    *context,
 923                                                                                          MonoError *error);
 924
 925 MONO_API MonoMethodSignature *
 926 mono_metadata_parse_method_signature_full   (MonoImage             *image,
 927                                              MonoGenericContainer  *generic_container,
 928                                              int                     def,
 929                                              const char             *ptr,
 930                                              const char            **rptr,
 931                                              MonoError *error);
 932
 933 MONO_API MonoMethodHeader *
 934 mono_metadata_parse_mh_full                 (MonoImage             *image,
 935                                              MonoGenericContainer  *container,
 936                                              const char            *ptr,
 937                                                  MonoError *error);
 938
 939 MonoMethodSignature  *mono_metadata_parse_signature_checked (MonoImage *image,
 940                                                              uint32_t    token,
 941                                                              MonoError *error);
 942
 943 gboolean
 944 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary);
 945
 946 int* mono_metadata_get_param_attrs          (MonoImage *m, int def, int param_count);
 947 gboolean mono_metadata_method_has_param_attrs (MonoImage *m, int def);
 948
 949 guint
 950 mono_metadata_generic_context_hash          (const MonoGenericContext *context);
 951
 952 gboolean
 953 mono_metadata_generic_context_equal         (const MonoGenericContext *g1,
 954                                              const MonoGenericContext *g2);
 955
 956 MonoGenericInst *
 957 mono_metadata_parse_generic_inst            (MonoImage             *image,
 958                                              MonoGenericContainer  *container,
 959                                              int                    count,
 960                                              const char            *ptr,
 961                                              const char           **rptr,
 962                                                  MonoError *error);
 963
 964 MonoGenericInst *
 965 mono_metadata_get_generic_inst              (int                    type_argc,
 966                                              MonoType             **type_argv);
 967
 968 MonoGenericInst *
 969 mono_metadata_get_canonical_generic_inst    (MonoGenericInst *candidate);
 970
 971 MonoGenericClass *
 972 mono_metadata_lookup_generic_class          (MonoClass             *gclass,
 973                                              MonoGenericInst       *inst,
 974                                              gboolean               is_dynamic);
 975
 976 MonoGenericInst * mono_metadata_inflate_generic_inst  (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error);
 977
 978 guint
 979 mono_metadata_generic_param_hash (MonoGenericParam *p);
 980
 981 gboolean
 982 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2);
 983
 984 void mono_dynamic_stream_reset  (MonoDynamicStream* stream);
 985 MONO_API void mono_assembly_addref       (MonoAssembly *assembly);
 986 void mono_assembly_load_friends (MonoAssembly* ass);
 987 gboolean mono_assembly_has_skip_verification (MonoAssembly* ass);
 988
 989 void mono_assembly_release_gc_roots (MonoAssembly *assembly);
 990 gboolean mono_assembly_close_except_image_pools (MonoAssembly *assembly);
 991 void mono_assembly_close_finish (MonoAssembly *assembly);
 992
 993
 994 gboolean mono_public_tokens_are_equal (const unsigned char *pubt1, const unsigned char *pubt2);
 995
 996 void mono_config_parse_publisher_policy (const char *filename, MonoAssemblyBindingInfo *binding_info);
 997 void mono_config_parse_assembly_bindings (const char *filename, int major, int minor, void *user_data,
 998                                           void (*infocb)(MonoAssemblyBindingInfo *info, void *user_data));
 999
1000 gboolean
1001 mono_assembly_name_parse_full                (const char           *name,
1002                                               MonoAssemblyName     *aname,
1003                                               gboolean save_public_key,
1004                                               gboolean *is_version_defined,
1005                                                   gboolean *is_token_defined);
1006
1007 gboolean
1008 mono_assembly_fill_assembly_name_full (MonoImage *image, MonoAssemblyName *aname, gboolean copyBlobs);
1009
1010
1011 MONO_API guint32 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner);
1012
1013 MonoGenericParam*
1014 mono_metadata_create_anon_gparam (MonoImage *image, gint32 param_num, gboolean is_mvar);
1015
1016 void mono_unload_interface_ids (MonoBitSet *bitset);
1017
1018
1019 MonoType *mono_metadata_type_dup (MonoImage *image, const MonoType *original);
1020 MonoType *mono_metadata_type_dup_with_cmods (MonoImage *image, const MonoType *original, const MonoType *cmods_source);
1021
1022 MonoMethodSignature  *mono_metadata_signature_dup_full (MonoImage *image,MonoMethodSignature *sig);
1023 MonoMethodSignature  *mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig);
1024 MonoMethodSignature  *mono_metadata_signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass);
1025
1026 MonoGenericInst *
1027 mono_get_shared_generic_inst (MonoGenericContainer *container);
1028
1029 int
1030 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open);
1031
1032 MONO_API void            mono_type_get_desc (GString *res, MonoType *type, mono_bool include_namespace);
1033
1034 gboolean
1035 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only);
1036
1037 MonoMarshalSpec *
1038 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr);
1039
1040 guint          mono_metadata_generic_inst_hash (gconstpointer data);
1041 gboolean       mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb);
1042
1043 MONO_API void
1044 mono_metadata_field_info_with_mempool (
1045                                           MonoImage *meta,
1046                                       guint32       table_index,
1047                                       guint32      *offset,
1048                                       guint32      *rva,
1049                                       MonoMarshalSpec **marshal_spec);
1050
1051 MonoClassField*
1052 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field);
1053
1054 MonoEvent*
1055 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event);
1056
1057 MonoProperty*
1058 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property);
1059
1060 guint32
1061 mono_metadata_signature_size (MonoMethodSignature *sig);
1062
1063 guint mono_metadata_str_hash (gconstpointer v1);
1064
1065 gboolean mono_image_load_pe_data (MonoImage *image);
1066
1067 gboolean mono_image_load_cli_data (MonoImage *image);
1068
1069 void mono_image_load_names (MonoImage *image);
1070
1071 MonoImage *mono_image_open_raw (const char *fname, MonoImageOpenStatus *status);
1072
1073 MonoImage *mono_image_open_metadata_only (const char *fname, MonoImageOpenStatus *status);
1074
1075 MonoImage *mono_image_open_from_data_internal (char *data, guint32 data_len, gboolean need_copy, MonoImageOpenStatus *status, gboolean refonly, gboolean metadata_only, const char *name);
1076
1077 MonoException *mono_get_exception_field_access_msg (const char *msg);
1078
1079 MonoException *mono_get_exception_method_access_msg (const char *msg);
1080
1081 MonoMethod* mono_method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error);
1082
1083 MonoMethod *mono_get_method_constrained_with_method (MonoImage *image, MonoMethod *method, MonoClass *constrained_class, MonoGenericContext *context, MonoError *error);
1084 MonoMethod *mono_get_method_constrained_checked (MonoImage *image, guint32 token, MonoClass *constrained_class, MonoGenericContext *context, MonoMethod **cil_method, MonoError *error);
1085
1086 void mono_type_set_alignment (MonoTypeEnum type, int align);
1087
1088 MonoAotCacheConfig *mono_get_aot_cache_config (void);
1089 MonoType *
1090 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error);
1091
1092 MonoMethodSignature*
1093 mono_method_get_signature_checked (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context, MonoError *error);
1094
1095 MonoMethod *
1096 mono_get_method_checked (MonoImage *image, guint32 token, MonoClass *klass, MonoGenericContext *context, MonoError *error);
1097
1098 guint32
1099 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index);
1100
1101 void
1102 mono_wrapper_caches_free (MonoWrapperCaches *cache);
1103
1104 MonoWrapperCaches*
1105 mono_method_get_wrapper_cache (MonoMethod *method);
1106
1107 MonoWrapperCaches*
1108 mono_method_get_wrapper_cache (MonoMethod *method);
1109
1110 MonoType*
1111 mono_metadata_parse_type_checked (MonoImage *m, MonoGenericContainer *container, short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error);
1112
1113 MonoGenericContainer *
1114 mono_get_anonymous_container_for_image (MonoImage *image, gboolean is_mvar);
1115
1116 char *
1117 mono_image_set_description (MonoImageSet *);
1118
1119 MonoImageSet *
1120 mono_find_image_set_owner (void *ptr);
1121
1122 MONO_API void
1123 mono_loader_register_module (const char *name, MonoDl *module);
1124
1125 gboolean
1126 mono_assembly_is_problematic_version (const char *name, guint16 major, guint16 minor, guint16 build, guint16 revision);
1127
1128 void
1129 mono_ginst_get_desc (GString *str, MonoGenericInst *ginst);
1130
1131 void
1132 mono_loader_set_strict_strong_names (gboolean enabled);
1133
1134 gboolean
1135 mono_loader_get_strict_strong_names (void);
1136
1137 gboolean
1138 mono_type_in_image (MonoType *type, MonoImage *image);
1139
1140 gboolean
1141 mono_type_is_valid_generic_argument (MonoType *type);
1142
1143 MonoAssemblyContextKind
1144 mono_asmctx_get_kind (const MonoAssemblyContext *ctx);
1145
1146 #define MONO_CLASS_IS_INTERFACE_INTERNAL(c) ((mono_class_get_flags (c) & TYPE_ATTRIBUTE_INTERFACE) || mono_type_is_generic_parameter (m_class_get_byval_arg (c)))
1147
1148 static inline char*
1149 m_image_get_raw_data (MonoImage *image)
1150 {
1151         return image->storage ? image->storage->raw_data : NULL;
1152 }
1153
1154 static inline guint32
1155 m_image_get_raw_data_len (MonoImage *image)
1156 {
1157         return image->storage ? image->storage->raw_data_len : 0;
1158 }
1159
1160 static inline gboolean
1161 m_image_is_raw_data_allocated (MonoImage *image)
1162 {
1163         return image->storage ? image->storage->raw_data_allocated : FALSE;
1164 }
1165
1166 static inline gboolean
1167 m_image_is_fileio_used (MonoImage *image)
1168 {
1169         return image->storage ? image->storage->fileio_used : FALSE;
1170 }
1171
1172 #ifdef HOST_WIN32
1173 static inline gboolean
1174 m_image_is_module_handle (MonoImage *image)
1175 {
1176         return image->storage ? image->storage->is_module_handle : FALSE;
1177 }
1178
1179 static inline gboolean
1180 m_image_has_entry_point (MonoImage *image)
1181 {
1182         return image->storage ? image->storage->has_entry_point : FALSE;
1183 }
1184
1185 #endif
1186
1187 #endif /* __MONO_METADATA_INTERNALS_H__ */