1 2 /*- 3 * Copyright (c) 1992, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * from: @(#)exec.h 8.1 (Berkeley) 6/11/93 35 * $Id: imgact_aout.h,v 1.1.1.1 2003/11/20 02:04:59 fengshuo Exp $ 36 */ 37 /* 38 * 11/23/95 - Kludge to get "ntohl" null macro added. -- ESB 39 * - and for __LDPGSZ 40 */ 41 42 #ifndef _IMGACT_AOUT_H_ 43 #define _IMGACT_AOUT_H_ 44 45 /* XXX ESB */ 46 #define ntohl(x) ((x << 24) | ((x & 0xFF00) << 8) \ 47 | ((x >> 8) & 0xFF00) | (x >> 24)) 48 #define htonl(x) ntohl(x) 49 #define __LDPGSZ 0x1000 50 51 #define N_GETMAGIC(ex) \ 52 ( (ex).a_midmag & 0xffff ) 53 #define N_GETMID(ex) \ 54 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETMID_NET(ex) : \ 55 ((ex).a_midmag >> 16) & 0x03ff ) 56 #define N_GETFLAG(ex) \ 57 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETFLAG_NET(ex) : \ 58 ((ex).a_midmag >> 26) & 0x3f ) 59 #define N_SETMAGIC(ex,mag,mid,flag) \ 60 ( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \ 61 ((mag) & 0xffff) ) 62 63 #define N_GETMAGIC_NET(ex) \ 64 (ntohl((ex).a_midmag) & 0xffff) 65 #define N_GETMID_NET(ex) \ 66 ((ntohl((ex).a_midmag) >> 16) & 0x03ff) 67 #define N_GETFLAG_NET(ex) \ 68 ((ntohl((ex).a_midmag) >> 26) & 0x3f) 69 #define N_SETMAGIC_NET(ex,mag,mid,flag) \ 70 ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \ 71 (((mag)&0xffff)) ) ) 72 73 #define N_ALIGN(ex,x) \ 74 (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \ 75 N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \ 76 ((x) + __LDPGSZ - 1) & ~(unsigned long)(__LDPGSZ - 1) : (x)) 77 78 /* Valid magic number check. */ 79 #define N_BADMAG(ex) \ 80 (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \ 81 N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \ 82 N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \ 83 N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC) 84 85 86 /* Address of the bottom of the text segment. */ 87 #define N_TXTADDR(ex) \ 88 ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \ 89 N_GETMAGIC(ex) == ZMAGIC) ? 0 : __LDPGSZ) 90 91 /* Address of the bottom of the data segment. */ 92 #define N_DATADDR(ex) \ 93 N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text) 94 95 /* Text segment offset. */ 96 #define N_TXTOFF(ex) \ 97 (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \ 98 N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec)) 99 100 /* Data segment offset. */ 101 #define N_DATOFF(ex) \ 102 N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text) 103 104 /* Relocation table offset. */ 105 #define N_RELOFF(ex) \ 106 N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data) 107 108 /* Symbol table offset. */ 109 #define N_SYMOFF(ex) \ 110 (N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize) 111 112 /* String table offset. */ 113 #define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms) 114 115 /* 116 * Header prepended to each a.out file. 117 * only manipulate the a_midmag field via the 118 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h 119 */ 120 121 struct exec 122 { 123 unsigned long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */ 124 unsigned long a_text; /* text segment size */ 125 unsigned long a_data; /* initialized data size */ 126 unsigned long a_bss; /* uninitialized data size */ 127 unsigned long a_syms; /* symbol table size */ 128 unsigned long a_entry; /* entry point */ 129 unsigned long a_trsize; /* text relocation size */ 130 unsigned long a_drsize; /* data relocation size */ 131 }; 132 #define a_magic a_midmag /* XXX Hack to work with current kern_execve.c */ 133 134 /* a_magic */ 135 #define OMAGIC 0x107 /* 0407 old impure format */ 136 #define NMAGIC 0x108 /* 0410 read-only text */ 137 #define ZMAGIC 0x10b /* 0413 demand load format */ 138 #define QMAGIC 0xcc /* 0314 "compact" demand load format */ 139 140 /* a_mid */ 141 #define MID_ZERO 0 /* unknown - implementation dependent */ 142 #define MID_SUN010 1 /* sun 68010/68020 binary */ 143 #define MID_SUN020 2 /* sun 68020-only binary */ 144 #define MID_I386 134 /* i386 BSD binary */ 145 #define MID_SPARC 138 /* sparc */ 146 #define MID_HP200 200 /* hp200 (68010) BSD binary */ 147 #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */ 148 #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */ 149 #define MID_HPUX800 0x20B /* hp800 HP-UX binary */ 150 151 /* 152 * a_flags 153 */ 154 #define EX_PIC 0x10 /* contains position independant code */ 155 #define EX_DYNAMIC 0x20 /* contains run-time link-edit info */ 156 #define EX_DPMASK 0x30 /* mask for the above */ 157 158 #endif /* !_IMGACT_AOUT_H_ */ 159