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 /* 68 bytes */
  68 typedef struct {
  69         guint32 pe_image_base;          /* must be 0x400000 */
  70         guint32 pe_section_align;       /* must be 8192 */
  71         guint32 pe_file_alignment;      /* must be 512 or 4096 */
  72         guint16 pe_os_major;            /* must be 4 */
  73         guint16 pe_os_minor;            /* must be 0 */
  74         guint16 pe_user_major;
  75         guint16 pe_user_minor;
  76         guint16 pe_subsys_major;
  77         guint16 pe_subsys_minor;
  78         guint32 pe_reserved_1;
  79         guint32 pe_image_size;
  80         guint32 pe_header_size;
  81         guint32 pe_checksum;
  82         guint16 pe_subsys_required;
  83         guint16 pe_dll_flags;
  84         guint32 pe_stack_reserve;
  85         guint32 pe_stack_commit;
  86         guint32 pe_heap_reserve;
  87         guint32 pe_heap_commit;
  88         guint32 pe_loader_flags;
  89         guint32 pe_data_dir_count;
  90 } MonoPEHeaderNT;
  91
  92 typedef struct {
  93         guint32 rde_data_offset;
  94         guint32 rde_size;
  95         guint32 rde_codepage;
  96         guint32 rde_reserved;
  97 } MonoPEResourceDataEntry;
  98
  99 #define MONO_PE_RESOURCE_ID_CURSOR      0x01
 100 #define MONO_PE_RESOURCE_ID_BITMAP      0x02
 101 #define MONO_PE_RESOURCE_ID_ICON        0x03
 102 #define MONO_PE_RESOURCE_ID_MENU        0x04
 103 #define MONO_PE_RESOURCE_ID_DIALOG      0x05
 104 #define MONO_PE_RESOURCE_ID_STRING      0x06
 105 #define MONO_PE_RESOURCE_ID_FONTDIR     0x07
 106 #define MONO_PE_RESOURCE_ID_FONT        0x08
 107 #define MONO_PE_RESOURCE_ID_ACCEL       0x09
 108 #define MONO_PE_RESOURCE_ID_RCDATA      0x0a
 109 #define MONO_PE_RESOURCE_ID_MESSAGETABLE        0x0b
 110 #define MONO_PE_RESOURCE_ID_GROUP_CURSOR        0x0c
 111 #define MONO_PE_RESOURCE_ID_GROUP_ICON  0x0d
 112 #define MONO_PE_RESOURCE_ID_VERSION     0x10
 113 #define MONO_PE_RESOURCE_ID_DLGINCLUDE  0x11
 114 #define MONO_PE_RESOURCE_ID_PLUGPLAY    0x13
 115 #define MONO_PE_RESOURCE_ID_VXD         0x14
 116 #define MONO_PE_RESOURCE_ID_ANICURSOR   0x15
 117 #define MONO_PE_RESOURCE_ID_ANIICON     0x16
 118 #define MONO_PE_RESOURCE_ID_HTML        0x17
 119
 120 typedef struct {
 121         /* If the MSB is set, then the other 31 bits store the RVA of
 122          * the unicode string containing the name.  Otherwise, the
 123          * other 31 bits contain the ID of this entry.
 124          */
 125 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
 126         guint32 name_offset:31;
 127         guint32 name_is_string:1;
 128 #else
 129         guint32 name_is_string:1;
 130         guint32 name_offset:31;
 131 #endif
 132
 133         /* If the MSB is set, then the other 31 bits store the RVA of
 134          * another subdirectory.  Otherwise, the other 31 bits store
 135          * the RVA of the resource data entry leaf node.
 136          */
 137 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
 138         guint32 dir_offset:31;
 139         guint32 is_dir:1;
 140 #else
 141         guint32 is_dir:1;
 142         guint32 dir_offset:31;
 143 #endif
 144 } MonoPEResourceDirEntry;
 145
 146 typedef struct
 147 {
 148         guint32 res_characteristics;
 149         guint32 res_date_stamp;
 150         guint16 res_major;
 151         guint16 res_minor;
 152         guint16 res_named_entries;
 153         guint16 res_id_entries;
 154         /* Directory entries follow on here.  The array is
 155          * res_named_entries + res_id_entries long, containing all
 156          * named entries first.
 157          */
 158 } MonoPEResourceDir;
 159
 160 typedef struct {
 161         guint32 rva;
 162         guint32 size;
 163 } MonoPEDirEntry;
 164
 165 /* 128 bytes */
 166 typedef struct {
 167         MonoPEDirEntry pe_export_table;
 168         MonoPEDirEntry pe_import_table;
 169         MonoPEDirEntry pe_resource_table;
 170         MonoPEDirEntry pe_exception_table;
 171         MonoPEDirEntry pe_certificate_table;
 172         MonoPEDirEntry pe_reloc_table;
 173         MonoPEDirEntry pe_debug;
 174         MonoPEDirEntry pe_copyright;
 175         MonoPEDirEntry pe_global_ptr;
 176         MonoPEDirEntry pe_tls_table;
 177         MonoPEDirEntry pe_load_config_table;
 178         MonoPEDirEntry pe_bound_import;
 179         MonoPEDirEntry pe_iat;
 180         MonoPEDirEntry pe_delay_import_desc;
 181         MonoPEDirEntry pe_cli_header;
 182         MonoPEDirEntry pe_reserved;
 183 } MonoPEDatadir;
 184
 185 /* 248 bytes */
 186 typedef struct {
 187         char            pesig [4];
 188         MonoCOFFHeader  coff;
 189         MonoPEHeader    pe;
 190         MonoPEHeaderNT  nt;
 191         MonoPEDatadir   datadir;
 192 } MonoDotNetHeader;
 193
 194 typedef struct {
 195         char    st_name [8];
 196         guint32 st_virtual_size;
 197         guint32 st_virtual_address;
 198         guint32 st_raw_data_size;
 199         guint32 st_raw_data_ptr;
 200         guint32 st_reloc_ptr;
 201         guint32 st_lineno_ptr;
 202         guint16 st_reloc_count;
 203         guint16 st_line_count;
 204
 205 #define SECT_FLAGS_HAS_CODE               0x20
 206 #define SECT_FLAGS_HAS_INITIALIZED_DATA   0x40
 207 #define SECT_FLAGS_HAS_UNINITIALIZED_DATA 0x80
 208 #define SECT_FLAGS_MEM_DISCARDABLE        0x02000000
 209 #define SECT_FLAGS_MEM_NOT_CACHED         0x04000000
 210 #define SECT_FLAGS_MEM_NOT_PAGED          0x08000000
 211 #define SECT_FLAGS_MEM_SHARED             0x10000000
 212 #define SECT_FLAGS_MEM_EXECUTE            0x20000000
 213 #define SECT_FLAGS_MEM_READ               0x40000000
 214 #define SECT_FLAGS_MEM_WRITE              0x80000000
 215         guint32 st_flags;
 216
 217 } MonoSectionTable;
 218
 219 typedef struct {
 220         guint32        ch_size;
 221         guint16        ch_runtime_major;
 222         guint16        ch_runtime_minor;
 223         MonoPEDirEntry ch_metadata;
 224
 225 #define CLI_FLAGS_ILONLY         0x01
 226 #define CLI_FLAGS_32BITREQUIRED  0x02
 227 #define CLI_FLAGS_STRONGNAMESIGNED 0x8
 228 #define CLI_FLAGS_TRACKDEBUGDATA 0x00010000
 229         guint32        ch_flags;
 230
 231         guint32        ch_entry_point;
 232         MonoPEDirEntry ch_resources;
 233         MonoPEDirEntry ch_strong_name;
 234         MonoPEDirEntry ch_code_manager_table;
 235         MonoPEDirEntry ch_vtable_fixups;
 236         MonoPEDirEntry ch_export_address_table_jumps;
 237
 238         /* The following are zero in the current docs */
 239         MonoPEDirEntry ch_eeinfo_table;
 240         MonoPEDirEntry ch_helper_table;
 241         MonoPEDirEntry ch_dynamic_info;
 242         MonoPEDirEntry ch_delay_load_info;
 243         MonoPEDirEntry ch_module_image;
 244         MonoPEDirEntry ch_external_fixups;
 245         MonoPEDirEntry ch_ridmap;
 246         MonoPEDirEntry ch_debug_map;
 247         MonoPEDirEntry ch_ip_map;
 248 } MonoCLIHeader;
 249
 250 /* This is not an on-disk structure */
 251 typedef struct {
 252         MonoDotNetHeader  cli_header;
 253         int               cli_section_count;
 254         MonoSectionTable  *cli_section_tables;
 255         void            **cli_sections;
 256         MonoCLIHeader     cli_cli_header;
 257 } MonoCLIImageInfo;
 258
 259 guint32       mono_cli_rva_image_map (MonoCLIImageInfo *iinfo, guint32 rva);
 260
 261 #endif /* __MONO_CIL_COFF_H__ */