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         guint32 name;
 163
 164         /* If the MSB is set, then the other 31 bits store the RVA of
 165          * another subdirectory.  Otherwise, the other 31 bits store
 166          * the RVA of the resource data entry leaf node.
 167          */
 168         guint32 dir;
 169 } MonoPEResourceDirEntry;
 170
 171 #define MONO_PE_RES_DIR_ENTRY_NAME_IS_STRING(d) (GUINT32_FROM_LE((d).name) >> 31)
 172 #define MONO_PE_RES_DIR_ENTRY_NAME_OFFSET(d)    (GUINT32_FROM_LE((d).name) & 0x7fffffff)
 173 #define MONO_PE_RES_DIR_ENTRY_SET_NAME(d,i,o)   ((d).name = GUINT32_TO_LE(((guint32)((i)?1:0) << 31) | ((o) & 0x7fffffff)))
 174
 175 #define MONO_PE_RES_DIR_ENTRY_IS_DIR(d)         (GUINT32_FROM_LE((d).dir) >> 31)
 176 #define MONO_PE_RES_DIR_ENTRY_DIR_OFFSET(d)     (GUINT32_FROM_LE((d).dir) & 0x7fffffff)
 177 #define MONO_PE_RES_DIR_ENTRY_SET_DIR(d,i,o)    ((d).dir = GUINT32_TO_LE(((guint32)((i)?1:0) << 31) | ((o) & 0x7fffffff)))
 178
 179 typedef struct
 180 {
 181         guint32 res_characteristics;
 182         guint32 res_date_stamp;
 183         guint16 res_major;
 184         guint16 res_minor;
 185         guint16 res_named_entries;
 186         guint16 res_id_entries;
 187         /* Directory entries follow on here.  The array is
 188          * res_named_entries + res_id_entries long, containing all
 189          * named entries first.
 190          */
 191 } MonoPEResourceDir;
 192
 193 typedef struct {
 194         guint32 rva;
 195         guint32 size;
 196 } MonoPEDirEntry;
 197
 198 /* 128 bytes */
 199 typedef struct {
 200         MonoPEDirEntry pe_export_table;
 201         MonoPEDirEntry pe_import_table;
 202         MonoPEDirEntry pe_resource_table;
 203         MonoPEDirEntry pe_exception_table;
 204         MonoPEDirEntry pe_certificate_table;
 205         MonoPEDirEntry pe_reloc_table;
 206         MonoPEDirEntry pe_debug;
 207         MonoPEDirEntry pe_copyright;
 208         MonoPEDirEntry pe_global_ptr;
 209         MonoPEDirEntry pe_tls_table;
 210         MonoPEDirEntry pe_load_config_table;
 211         MonoPEDirEntry pe_bound_import;
 212         MonoPEDirEntry pe_iat;
 213         MonoPEDirEntry pe_delay_import_desc;
 214         MonoPEDirEntry pe_cli_header;
 215         MonoPEDirEntry pe_reserved;
 216 } MonoPEDatadir;
 217
 218 /* 248 bytes */
 219 typedef struct {
 220         char            pesig [4];
 221         MonoCOFFHeader  coff;
 222         MonoPEHeader    pe;
 223         MonoPEHeaderNT  nt;
 224         MonoPEDatadir   datadir;
 225 } MonoDotNetHeader32;
 226
 227 /* 248 bytes */
 228 typedef struct {
 229         char            pesig [4];
 230         MonoCOFFHeader  coff;
 231         MonoPEHeader    pe;
 232         MonoPEHeaderNT  nt;
 233         MonoPEDatadir   datadir;
 234 } MonoDotNetHeader;
 235
 236 /* XX248 bytes */
 237 typedef struct {
 238         char              pesig [4];
 239         MonoCOFFHeader    coff;
 240         MonoPEHeader64    pe;
 241         MonoPEHeaderNT64  nt;
 242         MonoPEDatadir     datadir;
 243 } MonoDotNetHeader64;
 244
 245 #define VTFIXUP_TYPE_32BIT                            0x01
 246 #define VTFIXUP_TYPE_64BIT                            0x02
 247 #define VTFIXUP_TYPE_FROM_UNMANAGED                   0x04
 248 #define VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN  0x08
 249 #define VTFIXUP_TYPE_CALL_MOST_DERIVED                0x10
 250
 251 typedef struct {
 252         guint32 rva;
 253         guint16 count;
 254         guint16 type;
 255 } MonoVTableFixup;
 256
 257 typedef struct {
 258         char    st_name [8];
 259         guint32 st_virtual_size;
 260         guint32 st_virtual_address;
 261         guint32 st_raw_data_size;
 262         guint32 st_raw_data_ptr;
 263         guint32 st_reloc_ptr;
 264         guint32 st_lineno_ptr;
 265         guint16 st_reloc_count;
 266         guint16 st_line_count;
 267
 268 #define SECT_FLAGS_HAS_CODE               0x20
 269 #define SECT_FLAGS_HAS_INITIALIZED_DATA   0x40
 270 #define SECT_FLAGS_HAS_UNINITIALIZED_DATA 0x80
 271 #define SECT_FLAGS_MEM_DISCARDABLE        0x02000000
 272 #define SECT_FLAGS_MEM_NOT_CACHED         0x04000000
 273 #define SECT_FLAGS_MEM_NOT_PAGED          0x08000000
 274 #define SECT_FLAGS_MEM_SHARED             0x10000000
 275 #define SECT_FLAGS_MEM_EXECUTE            0x20000000
 276 #define SECT_FLAGS_MEM_READ               0x40000000
 277 #define SECT_FLAGS_MEM_WRITE              0x80000000
 278         guint32 st_flags;
 279
 280 } MonoSectionTable;
 281
 282 typedef struct {
 283         guint32        ch_size;
 284         guint16        ch_runtime_major;
 285         guint16        ch_runtime_minor;
 286         MonoPEDirEntry ch_metadata;
 287
 288 #define CLI_FLAGS_ILONLY         0x01
 289 #define CLI_FLAGS_32BITREQUIRED  0x02
 290 #define CLI_FLAGS_STRONGNAMESIGNED 0x8
 291 #define CLI_FLAGS_TRACKDEBUGDATA 0x00010000
 292         guint32        ch_flags;
 293
 294         guint32        ch_entry_point;
 295         MonoPEDirEntry ch_resources;
 296         MonoPEDirEntry ch_strong_name;
 297         MonoPEDirEntry ch_code_manager_table;
 298         MonoPEDirEntry ch_vtable_fixups;
 299         MonoPEDirEntry ch_export_address_table_jumps;
 300
 301         /* The following are zero in the current docs */
 302         MonoPEDirEntry ch_eeinfo_table;
 303         MonoPEDirEntry ch_helper_table;
 304         MonoPEDirEntry ch_dynamic_info;
 305         MonoPEDirEntry ch_delay_load_info;
 306         MonoPEDirEntry ch_module_image;
 307         MonoPEDirEntry ch_external_fixups;
 308         MonoPEDirEntry ch_ridmap;
 309         MonoPEDirEntry ch_debug_map;
 310         MonoPEDirEntry ch_ip_map;
 311 } MonoCLIHeader;
 312
 313 /* This is not an on-disk structure */
 314 typedef struct {
 315         MonoDotNetHeader  cli_header;
 316         int               cli_section_count;
 317         MonoSectionTable  *cli_section_tables;
 318         void            **cli_sections;
 319         MonoCLIHeader     cli_cli_header;
 320 } MonoCLIImageInfo;
 321
 322 guint32       mono_cli_rva_image_map (MonoImage *image, guint32 rva);
 323
 324 #endif /* __MONO_CIL_COFF_H__ */