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(amiga) 42 #define __LDPGSZ 8192 43 #endif 44 #if defined(hp300) || defined(i386) 45 #define __LDPGSZ 4096 46 #endif 47 #if defined(tahoe) || defined(vax) 48 #define __LDPGSZ 1024 49 #endif 50 51 #define N_GETMAGIC(ex) \ 52 ( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : ((ex).a_midmag)) 53 #define N_GETMAGIC2(ex) \ 54 ( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : \ 55 (((ex).a_midmag) | 0x10000) ) 56 #define N_GETMID(ex) \ 57 ( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>16)&0x03ff) : MID_ZERO ) 58 #define N_GETFLAG(ex) \ 59 ( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>26)&0x3f) : 0 ) 60 #define N_SETMAGIC(ex,mag,mid,flag) \ 61 ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \ 62 (((mag)&0xffff)) ) ) 63 64 #define N_ALIGN(ex,x) \ 65 (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC ? \ 66 ((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x)) 67 68 /* Valid magic number check. */ 69 #define N_BADMAG(ex) \ 70 (N_GETMAGIC(ex) != NMAGIC && N_GETMAGIC(ex) != OMAGIC && \ 71 N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC) 72 73 /* Address of the bottom of the text segment. */ 74 #define N_TXTADDR(ex) (N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : __LDPGSZ) 75 76 /* Address of the bottom of the data segment. */ 77 #define N_DATADDR(ex) \ 78 N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text) 79 80 /* Text segment offset. */ 81 #define N_TXTOFF(ex) \ 82 ( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \ 83 0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? __LDPGSZ : sizeof(struct exec)) ) 84 85 /* Data segment offset. */ 86 #define N_DATOFF(ex) \ 87 N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text) 88 89 /* Relocation table offset. */ 90 #define N_RELOFF(ex) \ 91 N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data) 92 93 /* Symbol table offset. */ 94 #define N_SYMOFF(ex) \ 95 (N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize) 96 97 /* String table offset. */ 98 #define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms) 99 100 /* Relocation format. */ 101 struct relocation_info { 102 int r_address; /* offset in text or data segment */ 103 unsigned int r_symbolnum : 24, /* ordinal number of add symbol */ 104 r_pcrel : 1, /* 1 if value should be pc-relative */ 105 r_length : 2, /* log base 2 of value's width */ 106 r_extern : 1, /* 1 if need to add symbol to value */ 107 : 4; /* reserved */ 108 }; 109 110 #define _AOUT_INCLUDE_ 111 #include <nlist.h> 112 113 #endif /* !_AOUT_H_ */ 114