mono/metadata/cil-coff.h

   1
   2 #ifndef __MONO_CIL_COFF_H__
   3 #define __MONO_CIL_COFF_H__
   4
   5 #include <mono/metadata/metadata.h>
   6
   7 /*
   8  * 25.2.1: Method header type values
   9  */
  10 #define METHOD_HEADER_FORMAT_MASK   7
  11 #define METHOD_HEADER_TINY_FORMAT   2
  12 #define METHOD_HEADER_TINY_FORMAT1  6
  13 #define METHOD_HEADER_FAT_FORMAT    3
  14
  15 /*
  16  * 25.2.3.1: Flags for method headers
  17  */
  18 #define METHOD_HEADER_INIT_LOCALS   0x10
  19 #define METHOD_HEADER_MORE_SECTS    0x08
  20
  21 /*
  22  * For section data (25.3)
  23  */
  24 #define METHOD_HEADER_SECTION_RESERVED    0
  25 #define METHOD_HEADER_SECTION_EHTABLE     1
  26 #define METHOD_HEADER_SECTION_OPTIL_TABLE 2
  27 #define METHOD_HEADER_SECTION_FAT_FORMAT  0x40
  28 #define METHOD_HEADER_SECTION_MORE_SECTS  0x80
  29
  30 /* 128 bytes */
  31 typedef struct {
  32         char    msdos_sig [2];
  33         guint16 nlast_page;
  34         guint16 npages;
  35         char    msdos_header [54];
  36         guint32 pe_offset;
  37         char    msdos_header2 [64];
  38 } MonoMSDOSHeader;
  39
  40 /* 20 bytes */
  41 typedef struct {
  42         guint16  coff_machine;
  43         guint16  coff_sections;
  44         guint32  coff_time;
  45         guint32  coff_symptr;
  46         guint32  coff_symcount;
  47         guint16  coff_opt_header_size;
  48         guint16  coff_attributes;
  49 } MonoCOFFHeader;
  50
  51 #define COFF_ATTRIBUTE_EXECUTABLE_IMAGE 0x0002
  52 #define COFF_ATTRIBUTE_LIBRARY_IMAGE    0x2000
  53
  54 /* 28 bytes */
  55 typedef struct {
  56         guint16 pe_magic;
  57         guchar  pe_major;
  58         guchar  pe_minor;
  59         guint32 pe_code_size;
  60         guint32 pe_data_size;
  61         guint32 pe_uninit_data_size;
  62         guint32 pe_rva_entry_point;
  63         guint32 pe_rva_code_base;
  64         guint32 pe_rva_data_base;
  65 } MonoPEHeader;
  66
  67 /* 24 bytes */
  68 typedef struct {
  69         guint16 pe_magic;
  70         guchar  pe_major;
  71         guchar  pe_minor;
  72         guint32 pe_code_size;
  73         guint32 pe_data_size;
  74         guint32 pe_uninit_data_size;
  75         guint32 pe_rva_entry_point;
  76         guint32 pe_rva_code_base;
  77 } MonoPEHeader64;
  78
  79 /* 68 bytes */
  80 typedef struct {
  81         guint32 pe_image_base;          /* must be 0x400000 */
  82         guint32 pe_section_align;       /* must be 8192 */
  83         guint32 pe_file_alignment;      /* must be 512 or 4096 */
  84         guint16 pe_os_major;            /* must be 4 */
  85         guint16 pe_os_minor;            /* must be 0 */
  86         guint16 pe_user_major;
  87         guint16 pe_user_minor;
  88         guint16 pe_subsys_major;
  89         guint16 pe_subsys_minor;
  90         guint32 pe_reserved_1;
  91         guint32 pe_image_size;
  92         guint32 pe_header_size;
  93         guint32 pe_checksum;
  94         guint16 pe_subsys_required;
  95         guint16 pe_dll_flags;
  96         guint32 pe_stack_reserve;
  97         guint32 pe_stack_commit;
  98         guint32 pe_heap_reserve;
  99         guint32 pe_heap_commit;
 100         guint32 pe_loader_flags;
 101         guint32 pe_data_dir_count;
 102 } MonoPEHeaderNT;
 103
 104 /* 88 bytes */
 105 typedef struct {
 106         guint64 pe_image_base;
 107         guint32 pe_section_align;       /* must be 8192 */
 108         guint32 pe_file_alignment;      /* must be 512 or 4096 */
 109         guint16 pe_os_major;            /* must be 4 */
 110         guint16 pe_os_minor;            /* must be 0 */
 111         guint16 pe_user_major;
 112         guint16 pe_user_minor;
 113         guint16 pe_subsys_major;
 114         guint16 pe_subsys_minor;
 115         guint32 pe_reserved_1;
 116         guint32 pe_image_size;
 117         guint32 pe_header_size;
 118         guint32 pe_checksum;
 119         guint16 pe_subsys_required;
 120         guint16 pe_dll_flags;
 121         guint64 pe_stack_reserve;
 122         guint64 pe_stack_commit;
 123         guint64 pe_heap_reserve;
 124         guint64 pe_heap_commit;
 125         guint32 pe_loader_flags;
 126         guint32 pe_data_dir_count;
 127 } MonoPEHeaderNT64;
 128
 129 typedef struct {
 130         guint32 rde_data_offset;
 131         guint32 rde_size;
 132         guint32 rde_codepage;
 133         guint32 rde_reserved;
 134 } MonoPEResourceDataEntry;
 135
 136 #define MONO_PE_RESOURCE_ID_CURSOR      0x01
 137 #define MONO_PE_RESOURCE_ID_BITMAP      0x02
 138 #define MONO_PE_RESOURCE_ID_ICON        0x03
 139 #define MONO_PE_RESOURCE_ID_MENU        0x04
 140 #define MONO_PE_RESOURCE_ID_DIALOG      0x05
 141 #define MONO_PE_RESOURCE_ID_STRING      0x06
 142 #define MONO_PE_RESOURCE_ID_FONTDIR     0x07
 143 #define MONO_PE_RESOURCE_ID_FONT        0x08
 144 #define MONO_PE_RESOURCE_ID_ACCEL       0x09
 145 #define MONO_PE_RESOURCE_ID_RCDATA      0x0a
 146 #define MONO_PE_RESOURCE_ID_MESSAGETABLE        0x0b
 147 #define MONO_PE_RESOURCE_ID_GROUP_CURSOR        0x0c
 148 #define MONO_PE_RESOURCE_ID_GROUP_ICON  0x0d
 149 #define MONO_PE_RESOURCE_ID_VERSION     0x10
 150 #define MONO_PE_RESOURCE_ID_DLGINCLUDE  0x11
 151 #define MONO_PE_RESOURCE_ID_PLUGPLAY    0x13
 152 #define MONO_PE_RESOURCE_ID_VXD         0x14
 153 #define MONO_PE_RESOURCE_ID_ANICURSOR   0x15
 154 #define MONO_PE_RESOURCE_ID_ANIICON     0x16
 155 #define MONO_PE_RESOURCE_ID_HTML        0x17
 156
 157 typedef struct {
 158         /* If the MSB is set, then the other 31 bits store the RVA of
 159          * the unicode string containing the name.  Otherwise, the
 160          * other 31 bits contain the ID of this entry.
 161          */
 162 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
 163         guint32 name_offset:31;
 164         guint32 name_is_string:1;
 165 #else
 166         guint32 name_is_string:1;
 167         guint32 name_offset:31;
 168 #endif
 169
 170         /* If the MSB is set, then the other 31 bits store the RVA of
 171          * another subdirectory.  Otherwise, the other 31 bits store
 172          * the RVA of the resource data entry leaf node.
 173          */
 174 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
 175         guint32 dir_offset:31;
 176         guint32 is_dir:1;
 177 #else
 178         guint32 is_dir:1;
 179         guint32 dir_offset:31;
 180 #endif
 181 } MonoPEResourceDirEntry;
 182
 183 typedef struct
 184 {
 185         guint32 res_characteristics;
 186         guint32 res_date_stamp;
 187         guint16 res_major;
 188         guint16 res_minor;
 189         guint16 res_named_entries;
 190         guint16 res_id_entries;
 191         /* Directory entries follow on here.  The array is
 192          * res_named_entries + res_id_entries long, containing all
 193          * named entries first.
 194          */
 195 } MonoPEResourceDir;
 196
 197 typedef struct {
 198         guint32 rva;
 199         guint32 size;
 200 } MonoPEDirEntry;
 201
 202 /* 128 bytes */
 203 typedef struct {
 204         MonoPEDirEntry pe_export_table;
 205         MonoPEDirEntry pe_import_table;
 206         MonoPEDirEntry pe_resource_table;
 207         MonoPEDirEntry pe_exception_table;
 208         MonoPEDirEntry pe_certificate_table;
 209         MonoPEDirEntry pe_reloc_table;
 210         MonoPEDirEntry pe_debug;
 211         MonoPEDirEntry pe_copyright;
 212         MonoPEDirEntry pe_global_ptr;
 213         MonoPEDirEntry pe_tls_table;
 214         MonoPEDirEntry pe_load_config_table;
 215         MonoPEDirEntry pe_bound_import;
 216         MonoPEDirEntry pe_iat;
 217         MonoPEDirEntry pe_delay_import_desc;
 218         MonoPEDirEntry pe_cli_header;
 219         MonoPEDirEntry pe_reserved;
 220 } MonoPEDatadir;
 221
 222 /* 248 bytes */
 223 typedef struct {
 224         char            pesig [4];
 225         MonoCOFFHeader  coff;
 226         MonoPEHeader    pe;
 227         MonoPEHeaderNT  nt;
 228         MonoPEDatadir   datadir;
 229 } MonoDotNetHeader32;
 230
 231 /* 248 bytes */
 232 typedef struct {
 233         char            pesig [4];
 234         MonoCOFFHeader  coff;
 235         MonoPEHeader    pe;
 236         MonoPEHeaderNT  nt;
 237         MonoPEDatadir   datadir;
 238 } MonoDotNetHeader;
 239
 240 /* XX248 bytes */
 241 typedef struct {
 242         char              pesig [4];
 243         MonoCOFFHeader    coff;
 244         MonoPEHeader64    pe;
 245         MonoPEHeaderNT64  nt;
 246         MonoPEDatadir     datadir;
 247 } MonoDotNetHeader64;
 248
 249 #define VTFIXUP_TYPE_32BIT                            0x01
 250 #define VTFIXUP_TYPE_64BIT                            0x02
 251 #define VTFIXUP_TYPE_FROM_UNMANAGED                   0x04
 252 #define VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN  0x08
 253 #define VTFIXUP_TYPE_CALL_MOST_DERIVED                0x10
 254
 255 typedef struct {
 256         guint32 rva;
 257         guint16 count;
 258         guint16 type;
 259 } MonoVTableFixup;
 260
 261 typedef struct {
 262         char    st_name [8];
 263         guint32 st_virtual_size;
 264         guint32 st_virtual_address;
 265         guint32 st_raw_data_size;
 266         guint32 st_raw_data_ptr;
 267         guint32 st_reloc_ptr;
 268         guint32 st_lineno_ptr;
 269         guint16 st_reloc_count;
 270         guint16 st_line_count;
 271
 272 #define SECT_FLAGS_HAS_CODE               0x20
 273 #define SECT_FLAGS_HAS_INITIALIZED_DATA   0x40
 274 #define SECT_FLAGS_HAS_UNINITIALIZED_DATA 0x80
 275 #define SECT_FLAGS_MEM_DISCARDABLE        0x02000000
 276 #define SECT_FLAGS_MEM_NOT_CACHED         0x04000000
 277 #define SECT_FLAGS_MEM_NOT_PAGED          0x08000000
 278 #define SECT_FLAGS_MEM_SHARED             0x10000000
 279 #define SECT_FLAGS_MEM_EXECUTE            0x20000000
 280 #define SECT_FLAGS_MEM_READ               0x40000000
 281 #define SECT_FLAGS_MEM_WRITE              0x80000000
 282         guint32 st_flags;
 283
 284 } MonoSectionTable;
 285
 286 typedef struct {
 287         guint32        ch_size;
 288         guint16        ch_runtime_major;
 289         guint16        ch_runtime_minor;
 290         MonoPEDirEntry ch_metadata;
 291
 292 #define CLI_FLAGS_ILONLY         0x01
 293 #define CLI_FLAGS_32BITREQUIRED  0x02
 294 #define CLI_FLAGS_STRONGNAMESIGNED 0x8
 295 #define CLI_FLAGS_TRACKDEBUGDATA 0x00010000
 296         guint32        ch_flags;
 297
 298         guint32        ch_entry_point;
 299         MonoPEDirEntry ch_resources;
 300         MonoPEDirEntry ch_strong_name;
 301         MonoPEDirEntry ch_code_manager_table;
 302         MonoPEDirEntry ch_vtable_fixups;
 303         MonoPEDirEntry ch_export_address_table_jumps;
 304
 305         /* The following are zero in the current docs */
 306         MonoPEDirEntry ch_eeinfo_table;
 307         MonoPEDirEntry ch_helper_table;
 308         MonoPEDirEntry ch_dynamic_info;
 309         MonoPEDirEntry ch_delay_load_info;
 310         MonoPEDirEntry ch_module_image;
 311         MonoPEDirEntry ch_external_fixups;
 312         MonoPEDirEntry ch_ridmap;
 313         MonoPEDirEntry ch_debug_map;
 314         MonoPEDirEntry ch_ip_map;
 315 } MonoCLIHeader;
 316
 317 /* This is not an on-disk structure */
 318 typedef struct {
 319         MonoDotNetHeader  cli_header;
 320         int               cli_section_count;
 321         MonoSectionTable  *cli_section_tables;
 322         void            **cli_sections;
 323         MonoCLIHeader     cli_cli_header;
 324 } MonoCLIImageInfo;
 325
 326 guint32       mono_cli_rva_image_map (MonoImage *image, guint32 rva);
 327
 328 #endif /* __MONO_CIL_COFF_H__ */