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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * from: @(#)exec.h 8.1 (Berkeley) 6/11/93 30 * $FreeBSD$ 31 */ 32 33 #ifndef _IMGACT_AOUT_H_ 34 #define _IMGACT_AOUT_H_ 35 36 #define N_GETMAGIC(ex) \ 37 ( (ex).a_midmag & 0xffff ) 38 #define N_GETMID(ex) \ 39 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETMID_NET(ex) : \ 40 ((ex).a_midmag >> 16) & 0x03ff ) 41 #define N_GETFLAG(ex) \ 42 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETFLAG_NET(ex) : \ 43 ((ex).a_midmag >> 26) & 0x3f ) 44 #define N_SETMAGIC(ex,mag,mid,flag) \ 45 ( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \ 46 ((mag) & 0xffff) ) 47 48 #define N_GETMAGIC_NET(ex) \ 49 (ntohl((ex).a_midmag) & 0xffff) 50 #define N_GETMID_NET(ex) \ 51 ((ntohl((ex).a_midmag) >> 16) & 0x03ff) 52 #define N_GETFLAG_NET(ex) \ 53 ((ntohl((ex).a_midmag) >> 26) & 0x3f) 54 #define N_SETMAGIC_NET(ex,mag,mid,flag) \ 55 ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) \ 56 | (((mag)&0xffff)) ) ) 57 58 #define N_ALIGN(ex,x) \ 59 (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \ 60 N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \ 61 ((x) + __LDPGSZ - 1) & ~(unsigned long)(__LDPGSZ - 1) : (x)) 62 63 /* Valid magic number check. */ 64 #define N_BADMAG(ex) \ 65 (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \ 66 N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \ 67 N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \ 68 N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC) 69 70 71 /* Address of the bottom of the text segment. */ 72 /* 73 * This can not be done right. Abuse a_entry in some cases to handle kernels. 74 */ 75 #define N_TXTADDR(ex) \ 76 ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \ 77 N_GETMAGIC(ex) == ZMAGIC) ? \ 78 ((ex).a_entry < (ex).a_text ? 0 : (ex).a_entry & ~__LDPGSZ) : __LDPGSZ) 79 80 /* Address of the bottom of the data segment. */ 81 #define N_DATADDR(ex) \ 82 N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text) 83 84 /* Text segment offset. */ 85 #define N_TXTOFF(ex) \ 86 (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \ 87 N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec)) 88 89 /* Data segment offset. */ 90 #define N_DATOFF(ex) \ 91 N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text) 92 93 /* Relocation table offset. */ 94 #define N_RELOFF(ex) \ 95 N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data) 96 97 /* Symbol table offset. */ 98 #define N_SYMOFF(ex) \ 99 (N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize) 100 101 /* String table offset. */ 102 #define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms) 103 104 /* 105 * Header prepended to each a.out file. 106 * only manipulate the a_midmag field via the 107 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h 108 */ 109 110 struct exec { 111 unsigned long a_midmag; /* flags<<26 | mid<<16 | magic */ 112 unsigned long a_text; /* text segment size */ 113 unsigned long a_data; /* initialized data size */ 114 unsigned long a_bss; /* uninitialized data size */ 115 unsigned long a_syms; /* symbol table size */ 116 unsigned long a_entry; /* entry point */ 117 unsigned long a_trsize; /* text relocation size */ 118 unsigned long a_drsize; /* data relocation size */ 119 }; 120 #define a_magic a_midmag /* XXX Hack to work with current kern_execve.c */ 121 122 /* a_magic */ 123 #define OMAGIC 0407 /* old impure format */ 124 #define NMAGIC 0410 /* read-only text */ 125 #define ZMAGIC 0413 /* demand load format */ 126 #define QMAGIC 0314 /* "compact" demand load format */ 127 128 /* a_mid */ 129 #define MID_ZERO 0 /* unknown - implementation dependent */ 130 #define MID_SUN010 1 /* sun 68010/68020 binary */ 131 #define MID_SUN020 2 /* sun 68020-only binary */ 132 #define MID_I386 134 /* i386 BSD binary */ 133 #define MID_SPARC 138 /* sparc */ 134 #define MID_ARM6 143 /* ARM6 */ 135 #define MID_HP200 200 /* hp200 (68010) BSD binary */ 136 #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */ 137 #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */ 138 #define MID_HPUX800 0x20B /* hp800 HP-UX binary */ 139 140 /* 141 * a_flags 142 */ 143 #define EX_PIC 0x10 /* contains position independent code */ 144 #define EX_DYNAMIC 0x20 /* contains run-time link-edit info */ 145 #define EX_DPMASK 0x30 /* mask for the above */ 146 147 #ifdef _KERNEL 148 struct thread; 149 struct vnode; 150 151 int aout_coredump(struct thread *td, struct vnode *vp, off_t limit); 152 #endif 153 154 #endif /* !_IMGACT_AOUT_H_ */ 155