| 1 | /* |
| 2 | * Copyright (c) 1980 Regents of the University of California. |
| 3 | * All rights reserved. The Berkeley software License Agreement |
| 4 | * specifies the terms and conditions for redistribution. |
| 5 | * |
| 6 | * @(#)nlist.h 5.2 (Berkeley) %G% |
| 7 | */ |
| 8 | |
| 9 | /* |
| 10 | * Format of a symbol table entry; this file is included by <a.out.h> |
| 11 | * and should be used if you aren't interested the a.out header |
| 12 | * or relocation information. |
| 13 | */ |
| 14 | struct nlist { |
| 15 | char *n_name; /* for use when in-core */ |
| 16 | unsigned char n_type; /* type flag, i.e. N_TEXT etc; see below */ |
| 17 | char n_other; /* unused */ |
| 18 | short n_desc; /* see <stab.h> */ |
| 19 | unsigned long n_value; /* value of this symbol (or sdb offset) */ |
| 20 | }; |
| 21 | #define n_hash n_desc /* used internally by ld */ |
| 22 | |
| 23 | /* |
| 24 | * Simple values for n_type. |
| 25 | */ |
| 26 | #define N_UNDF 0x0 /* undefined */ |
| 27 | #define N_ABS 0x2 /* absolute */ |
| 28 | #define N_TEXT 0x4 /* text */ |
| 29 | #define N_DATA 0x6 /* data */ |
| 30 | #define N_BSS 0x8 /* bss */ |
| 31 | #define N_COMM 0x12 /* common (internal to ld) */ |
| 32 | #define N_FN 0x1e /* file name symbol */ |
| 33 | |
| 34 | #define N_EXT 01 /* external bit, or'ed in */ |
| 35 | #define N_TYPE 0x1e /* mask for all the type bits */ |
| 36 | |
| 37 | /* |
| 38 | * Sdb entries have some of the N_STAB bits set. |
| 39 | * These are given in <stab.h> |
| 40 | */ |
| 41 | #define N_STAB 0xe0 /* if any of these bits set, a SDB entry */ |
| 42 | |
| 43 | /* |
| 44 | * Format for namelist values. |
| 45 | */ |
| 46 | #define N_FORMAT "%08x" |