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| 1 | #ifndef __A_OUT_GNU_H__ |
|---|---|
| 2 | #define __A_OUT_GNU_H__ |
| 3 | |
| 4 | #ifdef __cplusplus |
| 5 | extern "C" { |
| 6 | #endif |
| 7 | |
| 8 | #define __GNU_EXEC_MACROS__ |
| 9 | |
| 10 | #ifndef __STRUCT_EXEC_OVERRIDE__ |
| 11 | |
| 12 | struct exec |
| 13 | { |
| 14 | unsigned long a_info; /* Use macros N_MAGIC, etc for access */ |
| 15 | unsigned a_text; /* size of text, in bytes */ |
| 16 | unsigned a_data; /* size of data, in bytes */ |
| 17 | unsigned a_bss; /* size of uninitialized data area, in bytes */ |
| 18 | unsigned a_syms; /* length of symbol table data, in bytes */ |
| 19 | unsigned a_entry; /* start address */ |
| 20 | unsigned a_trsize; /* size of reloc info for text, in bytes */ |
| 21 | unsigned a_drsize; /* size of reloc info for data, in bytes */ |
| 22 | |
| 23 | #if defined (sequent) && defined (i386) |
| 24 | struct gdtbl |
| 25 | { /* Global Descriptor Table */ |
| 26 | unsigned g_code[2]; |
| 27 | unsigned g_data[2]; |
| 28 | unsigned g_desc[2]; |
| 29 | } a_gdtbl; |
| 30 | unsigned a_shdata; /* size of initialized shared data */ |
| 31 | unsigned a_shbss; /* size of uninitialized shared data */ |
| 32 | unsigned a_shdrsize; /* size of shared data relocation */ |
| 33 | unsigned a_bootstrap[11]; /* bootstrap for standalone */ |
| 34 | unsigned a_reserved[3]; /* reserved for future use */ |
| 35 | unsigned a_version; /* object version */ |
| 36 | #endif /* Sequent Symmetry, Dynix 3.x */ |
| 37 | }; |
| 38 | |
| 39 | #endif /* __STRUCT_EXEC_OVERRIDE__ */ |
| 40 | |
| 41 | /* these go in the N_MACHTYPE field */ |
| 42 | enum machine_type { |
| 43 | #if defined (M_OLDSUN2) |
| 44 | M__OLDSUN2 = M_OLDSUN2, |
| 45 | #else |
| 46 | M_OLDSUN2 = 0, |
| 47 | #endif |
| 48 | #if defined (M_68010) |
| 49 | M__68010 = M_68010, |
| 50 | #else |
| 51 | M_68010 = 1, |
| 52 | #endif |
| 53 | #if defined (M_68020) |
| 54 | M__68020 = M_68020, |
| 55 | #else |
| 56 | M_68020 = 2, |
| 57 | #endif |
| 58 | #if defined (M_SPARC) |
| 59 | M__SPARC = M_SPARC, |
| 60 | #else |
| 61 | M_SPARC = 3, |
| 62 | #endif |
| 63 | /* skip a bunch so we don't run into any of sun's numbers */ |
| 64 | M_386 = 100 |
| 65 | }; |
| 66 | |
| 67 | #if defined (sequent) && defined (i386) |
| 68 | |
| 69 | /* Dynix 3 wants the magic number to be the whole first longword. */ |
| 70 | |
| 71 | #define N_MAGIC(exec) ((exec).a_info) |
| 72 | #define N_MACHTYPE(exec) 0 |
| 73 | #define N_FLAGS(exec) 0 |
| 74 | #define N_SET_INFO(exec, magic, type, flags) N_SET_MAGIC ((exec), (magic)) |
| 75 | #define N_SET_MAGIC(exec, magic) ((exec).a_info = (magic)) |
| 76 | #define N_SET_MACHTYPE(exec, machtype) ((void) 0) |
| 77 | #define N_SET_FLAGS(exec, flags) ((void) 0) |
| 78 | #define OMAGIC 0x12eb /* impure format - for .o's */ |
| 79 | #define ZMAGIC 0x22eb /* demand load format - zero at zero */ |
| 80 | #define NMAGIC you lose /* syntax error -- no pure format */ |
| 81 | #define N_BADMAG(x) (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != ZMAGIC) |
| 82 | #define N_ADDRADJ(x) (N_MAGIC(x) == ZMAGIC ? SEGMENT_SIZE : 0) |
| 83 | #define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text - N_ADDRADJ(x)) |
| 84 | #define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data + (x).a_shdata) |
| 85 | #define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize + (x).a_shdrsize) |
| 86 | #define N_TXTADDR(x) SEGMENT_SIZE |
| 87 | #define N_COMM 0x0a /** conflicts with N_INDR **/ |
| 88 | #define N_FN 0x0c |
| 89 | /* Note that the Dynix binutils believe that N_SET[TDB] are |
| 90 | N_SH{DATA,BSS,COMM} -- be wary when mixing GNU & Dynix objects. */ |
| 91 | #define PAGE_SIZE 4096 |
| 92 | #define SEGMENT_SIZE PAGE_SIZE |
| 93 | |
| 94 | #else /* !(sequent && i386) */ |
| 95 | |
| 96 | #if !defined (N_MAGIC) |
| 97 | #define N_MAGIC(exec) ((exec).a_info & 0xffff) |
| 98 | #endif |
| 99 | #define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff)) |
| 100 | #define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff) |
| 101 | #define N_SET_INFO(exec, magic, type, flags) \ |
| 102 | ((exec).a_info = ((magic) & 0xffff) \ |
| 103 | | (((int)(type) & 0xff) << 16) \ |
| 104 | | (((flags) & 0xff) << 24)) |
| 105 | #define N_SET_MAGIC(exec, magic) \ |
| 106 | ((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff))) |
| 107 | |
| 108 | #define N_SET_MACHTYPE(exec, machtype) \ |
| 109 | ((exec).a_info = \ |
| 110 | ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16)) |
| 111 | |
| 112 | #define N_SET_FLAGS(exec, flags) \ |
| 113 | ((exec).a_info = \ |
| 114 | ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24)) |
| 115 | |
| 116 | #endif /* sequent && i386 */ |
| 117 | |
| 118 | #ifndef OMAGIC |
| 119 | /* Code indicating object file or impure executable. */ |
| 120 | #define OMAGIC 0407 |
| 121 | /* Code indicating pure executable. */ |
| 122 | #define NMAGIC 0410 |
| 123 | /* Code indicating demand-paged executable. */ |
| 124 | #define ZMAGIC 0413 |
| 125 | #endif /* not OMAGIC */ |
| 126 | |
| 127 | #if !defined (N_BADMAG) |
| 128 | #define N_BADMAG(x) \ |
| 129 | (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \ |
| 130 | && N_MAGIC(x) != ZMAGIC) |
| 131 | #endif |
| 132 | |
| 133 | #define _N_BADMAG(x) \ |
| 134 | (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \ |
| 135 | && N_MAGIC(x) != ZMAGIC) |
| 136 | |
| 137 | #ifndef sparc |
| 138 | #define _N_HDROFF(x) (SEGMENT_SIZE - sizeof (struct exec)) |
| 139 | #else |
| 140 | #define _N_HDROFF(x) (- sizeof (struct exec)) |
| 141 | #endif |
| 142 | |
| 143 | #if !defined (N_TXTOFF) |
| 144 | #define N_TXTOFF(x) \ |
| 145 | (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : sizeof (struct exec)) |
| 146 | #endif |
| 147 | |
| 148 | #if !defined (N_DATOFF) |
| 149 | #define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text) |
| 150 | #endif |
| 151 | |
| 152 | #if !defined (N_TRELOFF) |
| 153 | #define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data) |
| 154 | #endif |
| 155 | |
| 156 | #if !defined (N_DRELOFF) |
| 157 | #define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize) |
| 158 | #endif |
| 159 | |
| 160 | #if !defined (N_SYMOFF) |
| 161 | #define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize) |
| 162 | #endif |
| 163 | |
| 164 | #if !defined (N_STROFF) |
| 165 | #define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms) |
| 166 | #endif |
| 167 | |
| 168 | /* Address of text segment in memory after it is loaded. */ |
| 169 | #if !defined (N_TXTADDR) |
| 170 | #define N_TXTADDR(x) 0 |
| 171 | #endif |
| 172 | |
| 173 | /* Address of data segment in memory after it is loaded. |
| 174 | Note that it is up to you to define SEGMENT_SIZE |
| 175 | on machines not listed here. */ |
| 176 | #if defined (hp300) || defined (mips) |
| 177 | #define PAGE_SIZE 4096 |
| 178 | #endif |
| 179 | #if defined (sparc) || defined (NeXT) |
| 180 | #define PAGE_SIZE 0x2000 |
| 181 | #endif |
| 182 | #if defined (sony) || (defined (sun) && defined (mc68000)) |
| 183 | #define SEGMENT_SIZE 0x2000 |
| 184 | #endif /* Sony or 68k Sun. */ |
| 185 | #ifdef is68k |
| 186 | #define SEGMENT_SIZE 0x20000 |
| 187 | #endif |
| 188 | #if defined(m68k) && defined(PORTAR) |
| 189 | #define PAGE_SIZE 0x400 |
| 190 | #endif |
| 191 | #if defined(i386) && !defined(sequent) |
| 192 | /* For COFF encapsulation. */ |
| 193 | #define SEGMENT_SIZE 0x400000 |
| 194 | #endif |
| 195 | #ifndef SEGMENT_SIZE |
| 196 | /* This used to be first in this paragraph and under: |
| 197 | if (defined(vax) || defined(hp300) || defined(pyr) || defined(sparc) \ |
| 198 | || (defined(m68k) && defined(PORTAR)) \ |
| 199 | || defined (NeXT) || defined (mips)) */ |
| 200 | #define SEGMENT_SIZE PAGE_SIZE |
| 201 | #endif |
| 202 | #ifndef PAGE_SIZE |
| 203 | /* This value is for i386-minix, but that has no predefine. |
| 204 | Making it default will only cause confusion on machines |
| 205 | which have no proper value defined. */ |
| 206 | #define PAGE_SIZE 16 |
| 207 | #endif |
| 208 | |
| 209 | #define PAGSIZ PAGE_SIZE |
| 210 | #define SEGSIZ SEGMENT_SIZE |
| 211 | |
| 212 | #define _N_SEGMENT_ROUND(x) (((x) + SEGMENT_SIZE - 1) & ~(SEGMENT_SIZE - 1)) |
| 213 | |
| 214 | #define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text) |
| 215 | |
| 216 | #ifndef N_DATADDR |
| 217 | #define N_DATADDR(x) \ |
| 218 | (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x)) \ |
| 219 | : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x)))) |
| 220 | #endif |
| 221 | |
| 222 | /* Address of bss segment in memory after it is loaded. */ |
| 223 | #if !defined (N_BSSADDR) |
| 224 | #define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data) |
| 225 | #endif |
| 226 | |
| 227 | #if !defined (N_NLIST_DECLARED) |
| 228 | struct nlist { |
| 229 | union { |
| 230 | char *n_name; |
| 231 | struct nlist *n_next; |
| 232 | long n_strx; |
| 233 | } n_un; |
| 234 | unsigned char n_type; |
| 235 | char n_other; |
| 236 | short n_desc; |
| 237 | unsigned long n_value; |
| 238 | }; |
| 239 | #endif /* no N_NLIST_DECLARED. */ |
| 240 | |
| 241 | #if !defined (N_UNDF) |
| 242 | #define N_UNDF 0 |
| 243 | #endif |
| 244 | #if !defined (N_ABS) |
| 245 | #define N_ABS 2 |
| 246 | #endif |
| 247 | #if !defined (N_TEXT) |
| 248 | #define N_TEXT 4 |
| 249 | #endif |
| 250 | #if !defined (N_DATA) |
| 251 | #define N_DATA 6 |
| 252 | #endif |
| 253 | #if !defined (N_BSS) |
| 254 | #define N_BSS 8 |
| 255 | #endif |
| 256 | #if !defined (N_COMM) |
| 257 | #define N_COMM 18 |
| 258 | #endif |
| 259 | #if !defined (N_FN) |
| 260 | #define N_FN 15 |
| 261 | #endif |
| 262 | |
| 263 | #if !defined (N_EXT) |
| 264 | #define N_EXT 1 |
| 265 | #endif |
| 266 | #if !defined (N_TYPE) |
| 267 | #define N_TYPE 036 |
| 268 | #endif |
| 269 | #if !defined (N_STAB) |
| 270 | #define N_STAB 0340 |
| 271 | #endif |
| 272 | |
| 273 | /* The following type indicates the definition of a symbol as being |
| 274 | an indirect reference to another symbol. The other symbol |
| 275 | appears as an undefined reference, immediately following this symbol. |
| 276 | |
| 277 | Indirection is asymmetrical. The other symbol's value will be used |
| 278 | to satisfy requests for the indirect symbol, but not vice versa. |
| 279 | If the other symbol does not have a definition, libraries will |
| 280 | be searched to find a definition. */ |
| 281 | #define N_INDR 0xa |
| 282 | |
| 283 | /* The following symbols refer to set elements. |
| 284 | All the N_SET[ATDB] symbols with the same name form one set. |
| 285 | Space is allocated for the set in the text section, and each set |
| 286 | element's value is stored into one word of the space. |
| 287 | The first word of the space is the length of the set (number of elements). |
| 288 | |
| 289 | The address of the set is made into an N_SETV symbol |
| 290 | whose name is the same as the name of the set. |
| 291 | This symbol acts like a N_DATA global symbol |
| 292 | in that it can satisfy undefined external references. */ |
| 293 | |
| 294 | /* These appear as input to LD, in a .o file. */ |
| 295 | #define N_SETA 0x14 /* Absolute set element symbol */ |
| 296 | #define N_SETT 0x16 /* Text set element symbol */ |
| 297 | #define N_SETD 0x18 /* Data set element symbol */ |
| 298 | #define N_SETB 0x1A /* Bss set element symbol */ |
| 299 | |
| 300 | /* This is output from LD. */ |
| 301 | #define N_SETV 0x1C /* Pointer to set vector in data area. */ |
| 302 | |
| 303 | #if !defined (N_RELOCATION_INFO_DECLARED) |
| 304 | /* This structure describes a single relocation to be performed. |
| 305 | The text-relocation section of the file is a vector of these structures, |
| 306 | all of which apply to the text section. |
| 307 | Likewise, the data-relocation section applies to the data section. */ |
| 308 | |
| 309 | struct relocation_info |
| 310 | { |
| 311 | /* Address (within segment) to be relocated. */ |
| 312 | int r_address; |
| 313 | /* The meaning of r_symbolnum depends on r_extern. */ |
| 314 | unsigned int r_symbolnum:24; |
| 315 | /* Nonzero means value is a pc-relative offset |
| 316 | and it should be relocated for changes in its own address |
| 317 | as well as for changes in the symbol or section specified. */ |
| 318 | unsigned int r_pcrel:1; |
| 319 | /* Length (as exponent of 2) of the field to be relocated. |
| 320 | Thus, a value of 2 indicates 1<<2 bytes. */ |
| 321 | unsigned int r_length:2; |
| 322 | /* 1 => relocate with value of symbol. |
| 323 | r_symbolnum is the index of the symbol |
| 324 | in file's the symbol table. |
| 325 | 0 => relocate with the address of a segment. |
| 326 | r_symbolnum is N_TEXT, N_DATA, N_BSS or N_ABS |
| 327 | (the N_EXT bit may be set also, but signifies nothing). */ |
| 328 | unsigned int r_extern:1; |
| 329 | /* Four bits that aren't used, but when writing an object file |
| 330 | it is desirable to clear them. */ |
| 331 | unsigned int r_pad:4; |
| 332 | }; |
| 333 | #endif /* no N_RELOCATION_INFO_DECLARED. */ |
| 334 | |
| 335 | #ifdef __cplusplus |
| 336 | } |
| 337 | #endif |
| 338 | |
| 339 | #endif /* __A_OUT_GNU_H__ */ |
| 340 |
Warning: This file is not a C or C++ file. It does not have highlighting.