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 5.4 (Berkeley) 05/29/90 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" 47 48 #if __STDC__ || c_plusplus 49 extern int nlist(const char *, struct nlist *); 50 #else 51 extern int nlist(); 52 #endif 53