1 /*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)a.out.h 5.6 (Berkeley) 4/30/91 34 */ 35 36 #ifndef _AOUT_H_ 37 #define _AOUT_H_ 38 39 #include <sys/exec.h> 40 41 #if defined(hp300) || defined(i386) 42 #define __LDPGSZ 4096 43 #endif 44 #if defined(tahoe) || defined(vax) 45 #define __LDPGSZ 1024 46 #endif 47 48 /* Valid magic number check. */ 49 #define N_BADMAG(ex) \ 50 ((ex).a_magic != NMAGIC && (ex).a_magic != OMAGIC && \ 51 (ex).a_magic != ZMAGIC) 52 53 /* Address of the bottom of the text segment. */ 54 #define N_TXTADDR(X) 0 55 56 /* Address of the bottom of the data segment. */ 57 #define N_DATADDR(ex) \ 58 (N_TXTADDR(ex) + ((ex).a_magic == OMAGIC ? (ex).a_text \ 59 : __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1)))) 60 61 /* Text segment offset. */ 62 #define N_TXTOFF(ex) \ 63 ((ex).a_magic == ZMAGIC ? __LDPGSZ : sizeof(struct exec)) 64 65 /* Data segment offset. */ 66 #define N_DATOFF(ex) \ 67 (N_TXTOFF(ex) + ((ex).a_magic != ZMAGIC ? (ex).a_text \ 68 : __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1)))) 69 70 /* Symbol table offset. */ 71 #define N_SYMOFF(ex) \ 72 (N_TXTOFF(ex) + (ex).a_text + (ex).a_data + (ex).a_trsize + \ 73 (ex).a_drsize) 74 75 /* String table offset. */ 76 #define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms) 77 78 /* Relocation format. */ 79 struct relocation_info { 80 int r_address; /* offset in text or data segment */ 81 unsigned int r_symbolnum : 24, /* ordinal number of add symbol */ 82 r_pcrel : 1, /* 1 if value should be pc-relative */ 83 r_length : 2, /* log base 2 of value's width */ 84 r_extern : 1, /* 1 if need to add symbol to value */ 85 : 4; /* reserved */ 86 }; 87 88 #define _AOUT_INCLUDE_ 89 #include <nlist.h> 90 91 #endif /* !_AOUT_H_ */ 92