1 /* nlist.h 4.1 83/05/03 */ 2 3 /* 4 * Format of a symbol table entry; this file is included by <a.out.h> 5 * and should be used if you aren't interested the a.out header 6 * or relocation information. 7 */ 8 struct nlist { 9 char *n_name; /* for use when in-core */ 10 unsigned char n_type; /* type flag, i.e. N_TEXT etc; see below */ 11 char n_other; /* unused */ 12 short n_desc; /* see <stab.h> */ 13 unsigned long n_value; /* value of this symbol (or sdb offset) */ 14 }; 15 #define n_hash n_desc /* used internally by ld */ 16 17 /* 18 * Simple values for n_type. 19 */ 20 #define N_UNDF 0x0 /* undefined */ 21 #define N_ABS 0x2 /* absolute */ 22 #define N_TEXT 0x4 /* text */ 23 #define N_DATA 0x6 /* data */ 24 #define N_BSS 0x8 /* bss */ 25 #define N_COMM 0x12 /* common (internal to ld) */ 26 #define N_FN 0x1f /* file name symbol */ 27 28 #define N_EXT 01 /* external bit, or'ed in */ 29 #define N_TYPE 0x1e /* mask for all the type bits */ 30 31 /* 32 * Sdb entries have some of the N_STAB bits set. 33 * These are given in <stab.h> 34 */ 35 #define N_STAB 0xe0 /* if any of these bits set, a SDB entry */ 36 37 /* 38 * Format for namelist values. 39 */ 40 #define N_FORMAT "%08x" 41