1 /*- 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. 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 * from: @(#)exec.h 8.1 (Berkeley) 6/11/93 34 * $FreeBSD: src/sys/sys/imgact_aout.h,v 1.13 1999/12/29 04:24:41 peter Exp $ 35 * $DragonFly: src/sys/sys/imgact_aout.h,v 1.5 2006/05/20 02:42:13 dillon Exp $ 36 */ 37 38 #ifndef _IMGACT_AOUT_H_ 39 #define _IMGACT_AOUT_H_ 40 41 #ifndef _SYS_TYPES_H_ 42 #include <sys/types.h> 43 #endif 44 45 #define N_GETMAGIC(ex) \ 46 ( (ex).a_midmag & 0xffff ) 47 #define N_GETMID(ex) \ 48 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETMID_NET(ex) : \ 49 ((ex).a_midmag >> 16) & 0x03ff ) 50 #define N_GETFLAG(ex) \ 51 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETFLAG_NET(ex) : \ 52 ((ex).a_midmag >> 26) & 0x3f ) 53 #define N_SETMAGIC(ex,mag,mid,flag) \ 54 ( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \ 55 ((mag) & 0xffff) ) 56 57 #define N_GETMAGIC_NET(ex) \ 58 (ntohl((ex).a_midmag) & 0xffff) 59 #define N_GETMID_NET(ex) \ 60 ((ntohl((ex).a_midmag) >> 16) & 0x03ff) 61 #define N_GETFLAG_NET(ex) \ 62 ((ntohl((ex).a_midmag) >> 26) & 0x3f) 63 #define N_SETMAGIC_NET(ex,mag,mid,flag) \ 64 ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \ 65 (((mag)&0xffff)) ) ) 66 67 #define N_ALIGN(ex,x) \ 68 (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \ 69 N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \ 70 ((x) + __LDPGSZ - 1) & ~(unsigned long)(__LDPGSZ - 1) : (x)) 71 72 /* Valid magic number check. */ 73 #define N_BADMAG(ex) \ 74 (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \ 75 N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \ 76 N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \ 77 N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC) 78 79 80 /* Address of the bottom of the text segment. */ 81 /* 82 * This can not be done right. Abuse a_entry in some cases to handle kernels. 83 */ 84 #define N_TXTADDR(ex) \ 85 ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \ 86 N_GETMAGIC(ex) == ZMAGIC) ? \ 87 ((ex).a_entry < (ex).a_text ? 0 : (ex).a_entry & ~__LDPGSZ) : __LDPGSZ) 88 89 /* Address of the bottom of the data segment. */ 90 #define N_DATADDR(ex) \ 91 N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text) 92 93 /* Text segment offset. */ 94 #define N_TXTOFF(ex) \ 95 (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \ 96 N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec)) 97 98 /* Data segment offset. */ 99 #define N_DATOFF(ex) \ 100 N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text) 101 102 /* Relocation table offset. */ 103 #define N_RELOFF(ex) \ 104 N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data) 105 106 /* Symbol table offset. */ 107 #define N_SYMOFF(ex) \ 108 (N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize) 109 110 /* String table offset. */ 111 #define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms) 112 113 /* 114 * Header prepended to each a.out file. 115 * only manipulate the a_midmag field via the 116 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h 117 */ 118 119 struct exec { 120 unsigned long a_midmag; /* flags<<26 | mid<<16 | magic */ 121 unsigned long a_text; /* text segment size */ 122 unsigned long a_data; /* initialized data size */ 123 unsigned long a_bss; /* uninitialized data size */ 124 unsigned long a_syms; /* symbol table size */ 125 unsigned long a_entry; /* entry point */ 126 unsigned long a_trsize; /* text relocation size */ 127 unsigned long a_drsize; /* data relocation size */ 128 }; 129 #define a_magic a_midmag /* XXX Hack to work with current kern_execve.c */ 130 131 /* a_magic */ 132 #define OMAGIC 0407 /* old impure format */ 133 #define NMAGIC 0410 /* read-only text */ 134 #define ZMAGIC 0413 /* demand load format */ 135 #define QMAGIC 0314 /* "compact" demand load format */ 136 137 /* a_mid */ 138 #define MID_ZERO 0 /* unknown - implementation dependent */ 139 #define MID_SUN010 1 /* sun 68010/68020 binary */ 140 #define MID_SUN020 2 /* sun 68020-only binary */ 141 #define MID_I386 134 /* i386 BSD binary */ 142 #define MID_SPARC 138 /* sparc */ 143 #define MID_HP200 200 /* hp200 (68010) BSD binary */ 144 #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */ 145 #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */ 146 #define MID_HPUX800 0x20B /* hp800 HP-UX binary */ 147 148 /* 149 * a_flags 150 */ 151 #define EX_PIC 0x10 /* contains position independent code */ 152 #define EX_DYNAMIC 0x20 /* contains run-time link-edit info */ 153 #define EX_DPMASK 0x30 /* mask for the above */ 154 155 #ifdef _KERNEL 156 struct proc; 157 struct vnode; 158 159 int aout_coredump (struct proc *p, struct vnode *vp, off_t limit); 160 #endif 161 162 #endif /* !_IMGACT_AOUT_H_ */ 163