mono/metadata/cil-coff.h

   1 /**
   2  * \file
   3  */
   4
   5 #ifndef __MONO_CIL_COFF_H__
   6 #define __MONO_CIL_COFF_H__
   7
   8 #include <mono/metadata/metadata.h>
   9 #include <glib.h>
  10
  11 /*
  12  * 25.2.1: Method header type values
  13  */
  14 #define METHOD_HEADER_FORMAT_MASK   3
  15 #define METHOD_HEADER_TINY_FORMAT   2
  16 #define METHOD_HEADER_FAT_FORMAT    3
  17
  18 /*
  19  * 25.2.3.1: Flags for method headers
  20  */
  21 #define METHOD_HEADER_INIT_LOCALS   0x10
  22 #define METHOD_HEADER_MORE_SECTS    0x08
  23
  24 /*
  25  * For section data (25.3)
  26  */
  27 #define METHOD_HEADER_SECTION_RESERVED    0
  28 #define METHOD_HEADER_SECTION_EHTABLE     1
  29 #define METHOD_HEADER_SECTION_OPTIL_TABLE 2
  30 #define METHOD_HEADER_SECTION_FAT_FORMAT  0x40
  31 #define METHOD_HEADER_SECTION_MORE_SECTS  0x80
  32
  33 /* 128 bytes */
  34 typedef struct {
  35         char    msdos_sig [2];
  36         guint16 nlast_page;
  37         guint16 npages;
  38         char    msdos_header [54];
  39         guint32 pe_offset;
  40         char    msdos_header2 [64];
  41 } MonoMSDOSHeader;
  42
  43 /* Possible values for coff_machine */
  44 #define COFF_MACHINE_I386 332
  45 #define COFF_MACHINE_IA64 512
  46 #define COFF_MACHINE_AMD64 34404
  47 #define COFF_MACHINE_ARM 452
  48
  49 /* 20 bytes */
  50 typedef struct {
  51         guint16  coff_machine;
  52         guint16  coff_sections;
  53         guint32  coff_time;
  54         guint32  coff_symptr;
  55         guint32  coff_symcount;
  56         guint16  coff_opt_header_size;
  57         guint16  coff_attributes;
  58 } MonoCOFFHeader;
  59
  60 #define COFF_ATTRIBUTE_EXECUTABLE_IMAGE 0x0002
  61 #define COFF_ATTRIBUTE_LIBRARY_IMAGE    0x2000
  62
  63 /* 28 bytes */
  64 typedef struct {
  65         guint16 pe_magic;
  66         guchar  pe_major;
  67         guchar  pe_minor;
  68         guint32 pe_code_size;
  69         guint32 pe_data_size;
  70         guint32 pe_uninit_data_size;
  71         guint32 pe_rva_entry_point;
  72         guint32 pe_rva_code_base;
  73         guint32 pe_rva_data_base;
  74 } MonoPEHeader;
  75
  76 /* 24 bytes */
  77 typedef struct {
  78         guint16 pe_magic;
  79         guchar  pe_major;
  80         guchar  pe_minor;
  81         guint32 pe_code_size;
  82         guint32 pe_data_size;
  83         guint32 pe_uninit_data_size;
  84         guint32 pe_rva_entry_point;
  85         guint32 pe_rva_code_base;
  86 } MonoPEHeader64;
  87
  88 /* 68 bytes */
  89 typedef struct {
  90         guint32 pe_image_base;          /* must be 0x400000 */
  91         guint32 pe_section_align;       /* must be 8192 */
  92         guint32 pe_file_alignment;      /* must be 512 or 4096 */
  93         guint16 pe_os_major;            /* must be 4 */
  94         guint16 pe_os_minor;            /* must be 0 */
  95         guint16 pe_user_major;
  96         guint16 pe_user_minor;
  97         guint16 pe_subsys_major;
  98         guint16 pe_subsys_minor;
  99         guint32 pe_reserved_1;
 100         guint32 pe_image_size;
 101         guint32 pe_header_size;
 102         guint32 pe_checksum;
 103         guint16 pe_subsys_required;
 104         guint16 pe_dll_flags;
 105         guint32 pe_stack_reserve;
 106         guint32 pe_stack_commit;
 107         guint32 pe_heap_reserve;
 108         guint32 pe_heap_commit;
 109         guint32 pe_loader_flags;
 110         guint32 pe_data_dir_count;
 111 } MonoPEHeaderNT;
 112
 113 /* 88 bytes */
 114 typedef struct {
 115         guint64 pe_image_base;
 116         guint32 pe_section_align;       /* must be 8192 */
 117         guint32 pe_file_alignment;      /* must be 512 or 4096 */
 118         guint16 pe_os_major;            /* must be 4 */
 119         guint16 pe_os_minor;            /* must be 0 */
 120         guint16 pe_user_major;
 121         guint16 pe_user_minor;
 122         guint16 pe_subsys_major;
 123         guint16 pe_subsys_minor;
 124         guint32 pe_reserved_1;
 125         guint32 pe_image_size;
 126         guint32 pe_header_size;
 127         guint32 pe_checksum;
 128         guint16 pe_subsys_required;
 129         guint16 pe_dll_flags;
 130         guint64 pe_stack_reserve;
 131         guint64 pe_stack_commit;
 132         guint64 pe_heap_reserve;
 133         guint64 pe_heap_commit;
 134         guint32 pe_loader_flags;
 135         guint32 pe_data_dir_count;
 136 } MonoPEHeaderNT64;
 137
 138 typedef struct {
 139         guint32 rde_data_offset;
 140         guint32 rde_size;
 141         guint32 rde_codepage;
 142         guint32 rde_reserved;
 143 } MonoPEResourceDataEntry;
 144
 145 #define MONO_PE_RESOURCE_ID_CURSOR      0x01
 146 #define MONO_PE_RESOURCE_ID_BITMAP      0x02
 147 #define MONO_PE_RESOURCE_ID_ICON        0x03
 148 #define MONO_PE_RESOURCE_ID_MENU        0x04
 149 #define MONO_PE_RESOURCE_ID_DIALOG      0x05
 150 #define MONO_PE_RESOURCE_ID_STRING      0x06
 151 #define MONO_PE_RESOURCE_ID_FONTDIR     0x07
 152 #define MONO_PE_RESOURCE_ID_FONT        0x08
 153 #define MONO_PE_RESOURCE_ID_ACCEL       0x09
 154 #define MONO_PE_RESOURCE_ID_RCDATA      0x0a
 155 #define MONO_PE_RESOURCE_ID_MESSAGETABLE        0x0b
 156 #define MONO_PE_RESOURCE_ID_GROUP_CURSOR        0x0c
 157 #define MONO_PE_RESOURCE_ID_GROUP_ICON  0x0d
 158 #define MONO_PE_RESOURCE_ID_VERSION     0x10
 159 #define MONO_PE_RESOURCE_ID_DLGINCLUDE  0x11
 160 #define MONO_PE_RESOURCE_ID_PLUGPLAY    0x13
 161 #define MONO_PE_RESOURCE_ID_VXD         0x14
 162 #define MONO_PE_RESOURCE_ID_ANICURSOR   0x15
 163 #define MONO_PE_RESOURCE_ID_ANIICON     0x16
 164 #define MONO_PE_RESOURCE_ID_HTML        0x17
 165 #define MONO_PE_RESOURCE_ID_ASPNET_STRING       0x65
 166
 167 typedef struct {
 168         /* If the MSB is set, then the other 31 bits store the RVA of
 169          * the unicode string containing the name.  Otherwise, the
 170          * other 31 bits contain the ID of this entry.
 171          */
 172         guint32 name;
 173
 174         /* If the MSB is set, then the other 31 bits store the RVA of
 175          * another subdirectory.  Otherwise, the other 31 bits store
 176          * the RVA of the resource data entry leaf node.
 177          */
 178         guint32 dir;
 179 } MonoPEResourceDirEntry;
 180
 181 #define MONO_PE_RES_DIR_ENTRY_NAME_IS_STRING(d) (GUINT32_FROM_LE((d).name) >> 31)
 182 #define MONO_PE_RES_DIR_ENTRY_NAME_OFFSET(d)    (GUINT32_FROM_LE((d).name) & 0x7fffffff)
 183 #define MONO_PE_RES_DIR_ENTRY_SET_NAME(d,i,o)   ((d).name = GUINT32_TO_LE(((guint32)((i)?1:0) << 31) | ((o) & 0x7fffffff)))
 184
 185 #define MONO_PE_RES_DIR_ENTRY_IS_DIR(d)         (GUINT32_FROM_LE((d).dir) >> 31)
 186 #define MONO_PE_RES_DIR_ENTRY_DIR_OFFSET(d)     (GUINT32_FROM_LE((d).dir) & 0x7fffffff)
 187 #define MONO_PE_RES_DIR_ENTRY_SET_DIR(d,i,o)    ((d).dir = GUINT32_TO_LE(((guint32)((i)?1:0) << 31) | ((o) & 0x7fffffff)))
 188
 189 typedef struct
 190 {
 191         guint32 res_characteristics;
 192         guint32 res_date_stamp;
 193         guint16 res_major;
 194         guint16 res_minor;
 195         guint16 res_named_entries;
 196         guint16 res_id_entries;
 197         /* Directory entries follow on here.  The array is
 198          * res_named_entries + res_id_entries long, containing all
 199          * named entries first.
 200          */
 201 } MonoPEResourceDir;
 202
 203 typedef struct {
 204         guint32 rva;
 205         guint32 size;
 206 } MonoPEDirEntry;
 207
 208 /* 128 bytes */
 209 typedef struct {
 210         MonoPEDirEntry pe_export_table;
 211         MonoPEDirEntry pe_import_table;
 212         MonoPEDirEntry pe_resource_table;
 213         MonoPEDirEntry pe_exception_table;
 214         MonoPEDirEntry pe_certificate_table;
 215         MonoPEDirEntry pe_reloc_table;
 216         MonoPEDirEntry pe_debug;
 217         MonoPEDirEntry pe_copyright;
 218         MonoPEDirEntry pe_global_ptr;
 219         MonoPEDirEntry pe_tls_table;
 220         MonoPEDirEntry pe_load_config_table;
 221         MonoPEDirEntry pe_bound_import;
 222         MonoPEDirEntry pe_iat;
 223         MonoPEDirEntry pe_delay_import_desc;
 224         MonoPEDirEntry pe_cli_header;
 225         MonoPEDirEntry pe_reserved;
 226 } MonoPEDatadir;
 227
 228 /* 248 bytes */
 229 typedef struct {
 230         char            pesig [4];
 231         MonoCOFFHeader  coff;
 232         MonoPEHeader    pe;
 233         MonoPEHeaderNT  nt;
 234         MonoPEDatadir   datadir;
 235 } MonoDotNetHeader32;
 236
 237 /* 248 bytes */
 238 typedef struct {
 239         char            pesig [4];
 240         MonoCOFFHeader  coff;
 241         MonoPEHeader    pe;
 242         MonoPEHeaderNT  nt;
 243         MonoPEDatadir   datadir;
 244 } MonoDotNetHeader;
 245
 246 /* XX248 bytes */
 247 typedef struct {
 248         char              pesig [4];
 249         MonoCOFFHeader    coff;
 250         MonoPEHeader64    pe;
 251         MonoPEHeaderNT64  nt;
 252         MonoPEDatadir     datadir;
 253 } MonoDotNetHeader64;
 254
 255 #define VTFIXUP_TYPE_32BIT                            0x01
 256 #define VTFIXUP_TYPE_64BIT                            0x02
 257 #define VTFIXUP_TYPE_FROM_UNMANAGED                   0x04
 258 #define VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN  0x08
 259 #define VTFIXUP_TYPE_CALL_MOST_DERIVED                0x10
 260
 261 typedef struct {
 262         guint32 rva;
 263         guint16 count;
 264         guint16 type;
 265 } MonoVTableFixup;
 266
 267 typedef struct {
 268         char    st_name [8];
 269         guint32 st_virtual_size;
 270         guint32 st_virtual_address;
 271         guint32 st_raw_data_size;
 272         guint32 st_raw_data_ptr;
 273         guint32 st_reloc_ptr;
 274         guint32 st_lineno_ptr;
 275         guint16 st_reloc_count;
 276         guint16 st_line_count;
 277
 278 #define SECT_FLAGS_HAS_CODE               0x20
 279 #define SECT_FLAGS_HAS_INITIALIZED_DATA   0x40
 280 #define SECT_FLAGS_HAS_UNINITIALIZED_DATA 0x80
 281 #define SECT_FLAGS_MEM_DISCARDABLE        0x02000000
 282 #define SECT_FLAGS_MEM_NOT_CACHED         0x04000000
 283 #define SECT_FLAGS_MEM_NOT_PAGED          0x08000000
 284 #define SECT_FLAGS_MEM_SHARED             0x10000000
 285 #define SECT_FLAGS_MEM_EXECUTE            0x20000000
 286 #define SECT_FLAGS_MEM_READ               0x40000000
 287 #define SECT_FLAGS_MEM_WRITE              0x80000000
 288         guint32 st_flags;
 289
 290 } MonoSectionTable;
 291
 292 typedef struct {
 293         guint32        ch_size;
 294         guint16        ch_runtime_major;
 295         guint16        ch_runtime_minor;
 296         MonoPEDirEntry ch_metadata;
 297
 298 #define CLI_FLAGS_ILONLY         0x01
 299 #define CLI_FLAGS_32BITREQUIRED  0x02
 300 #define CLI_FLAGS_STRONGNAMESIGNED 0x8
 301 #define CLI_FLAGS_TRACKDEBUGDATA 0x00010000
 302 #define CLI_FLAGS_PREFERRED32BIT 0x00020000
 303         guint32        ch_flags;
 304
 305         guint32        ch_entry_point;
 306         MonoPEDirEntry ch_resources;
 307         MonoPEDirEntry ch_strong_name;
 308         MonoPEDirEntry ch_code_manager_table;
 309         MonoPEDirEntry ch_vtable_fixups;
 310         MonoPEDirEntry ch_export_address_table_jumps;
 311
 312         /* The following are zero in the current docs */
 313         MonoPEDirEntry ch_eeinfo_table;
 314         MonoPEDirEntry ch_helper_table;
 315         MonoPEDirEntry ch_dynamic_info;
 316         MonoPEDirEntry ch_delay_load_info;
 317         MonoPEDirEntry ch_module_image;
 318         MonoPEDirEntry ch_external_fixups;
 319         MonoPEDirEntry ch_ridmap;
 320         MonoPEDirEntry ch_debug_map;
 321         MonoPEDirEntry ch_ip_map;
 322 } MonoCLIHeader;
 323
 324 /* This is not an on-disk structure */
 325 typedef struct {
 326         MonoDotNetHeader  cli_header;
 327         int               cli_section_count;
 328         MonoSectionTable  *cli_section_tables;
 329         void            **cli_sections;
 330         MonoCLIHeader     cli_cli_header;
 331 } MonoCLIImageInfo;
 332
 333 MONO_API guint32       mono_cli_rva_image_map (MonoImage *image, guint32 rva);
 334
 335 #endif /* __MONO_CIL_COFF_H__ */