1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * from: @(#)exec.h 8.1 (Berkeley) 6/11/93 32 * $FreeBSD$ 33 */ 34 35 #ifndef _IMGACT_AOUT_H_ 36 #define _IMGACT_AOUT_H_ 37 38 #define N_GETMAGIC(ex) \ 39 ( le32toh((ex).a_midmag) & 0xffff ) 40 #define N_GETMID(ex) \ 41 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETMID_NET(ex) : \ 42 ((ex).a_midmag >> 16) & 0x03ff ) 43 #define N_GETFLAG(ex) \ 44 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETFLAG_NET(ex) : \ 45 ((ex).a_midmag >> 26) & 0x3f ) 46 #define N_SETMAGIC(ex,mag,mid,flag) \ 47 ( (ex).a_midmag = htole32((((flag) & 0x3f) <<26) | \ 48 (((mid) & 0x03ff) << 16) | \ 49 ((mag) & 0xffff)) ) 50 51 #define N_GETMAGIC_NET(ex) \ 52 (ntohl((ex).a_midmag) & 0xffff) 53 #define N_GETMID_NET(ex) \ 54 ((ntohl((ex).a_midmag) >> 16) & 0x03ff) 55 #define N_GETFLAG_NET(ex) \ 56 ((ntohl((ex).a_midmag) >> 26) & 0x3f) 57 #define N_SETMAGIC_NET(ex,mag,mid,flag) \ 58 ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) \ 59 | (((mag)&0xffff)) ) ) 60 61 #define N_ALIGN(ex,x) \ 62 (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \ 63 N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \ 64 ((x) + __LDPGSZ - 1) & ~(uint32_t)(__LDPGSZ - 1) : (x)) 65 66 /* Valid magic number check. */ 67 #define N_BADMAG(ex) \ 68 (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \ 69 N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \ 70 N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \ 71 N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC) 72 73 /* Address of the bottom of the text segment. */ 74 /* 75 * This can not be done right. Abuse a_entry in some cases to handle kernels. 76 */ 77 #define N_TXTADDR(ex) \ 78 ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \ 79 N_GETMAGIC(ex) == ZMAGIC) ? \ 80 (le32toh((ex).a_entry) < le32toh((ex).a_text) ? 0 : \ 81 le32toh((ex).a_entry) & ~__LDPGSZ) : __LDPGSZ) 82 83 /* Address of the bottom of the data segment. */ 84 #define N_DATADDR(ex) \ 85 N_ALIGN(ex, N_TXTADDR(ex) + le32toh((ex).a_text)) 86 87 /* Text segment offset. */ 88 #define N_TXTOFF(ex) \ 89 (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \ 90 N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec)) 91 92 /* Data segment offset. */ 93 #define N_DATOFF(ex) \ 94 N_ALIGN(ex, N_TXTOFF(ex) + le32toh((ex).a_text)) 95 96 /* Relocation table offset. */ 97 #define N_RELOFF(ex) \ 98 N_ALIGN(ex, N_DATOFF(ex) + le32toh((ex).a_data)) 99 100 /* Symbol table offset. */ 101 #define N_SYMOFF(ex) \ 102 (N_RELOFF(ex) + le32toh((ex).a_trsize) + le32toh((ex).a_drsize)) 103 104 /* String table offset. */ 105 #define N_STROFF(ex) (N_SYMOFF(ex) + le32toh((ex).a_syms)) 106 107 /* 108 * Header prepended to each a.out file. 109 * Only manipulate the a_midmag field via the 110 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros. 111 */ 112 113 struct exec { 114 uint32_t a_midmag; /* flags<<26 | mid<<16 | magic */ 115 uint32_t a_text; /* text segment size */ 116 uint32_t a_data; /* initialized data size */ 117 uint32_t a_bss; /* uninitialized data size */ 118 uint32_t a_syms; /* symbol table size */ 119 uint32_t a_entry; /* entry point */ 120 uint32_t a_trsize; /* text relocation size */ 121 uint32_t a_drsize; /* data relocation size */ 122 }; 123 #define a_magic a_midmag /* Hack for emulators */ 124 125 /* a_magic */ 126 #define OMAGIC 0407 /* old impure format */ 127 #define NMAGIC 0410 /* read-only text */ 128 #define ZMAGIC 0413 /* demand load format */ 129 #define QMAGIC 0314 /* "compact" demand load format */ 130 131 /* a_mid */ 132 #define MID_ZERO 0 /* unknown - implementation dependent */ 133 #define MID_SUN010 1 /* sun 68010/68020 binary */ 134 #define MID_SUN020 2 /* sun 68020-only binary */ 135 #define MID_I386 134 /* i386 BSD binary */ 136 #define MID_SPARC 138 /* sparc */ 137 #define MID_ARM6 143 /* ARM6 */ 138 #define MID_HP200 200 /* hp200 (68010) BSD binary */ 139 #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */ 140 #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */ 141 #define MID_HPUX800 0x20B /* hp800 HP-UX binary */ 142 143 /* 144 * a_flags 145 */ 146 #define EX_PIC 0x10 /* contains position independent code */ 147 #define EX_DYNAMIC 0x20 /* contains run-time link-edit info */ 148 #define EX_DPMASK 0x30 /* mask for the above */ 149 150 #ifdef _KERNEL 151 struct thread; 152 struct vnode; 153 154 int aout_coredump(struct thread *td, struct vnode *vp, off_t limit, 155 int flags); 156 #endif 157 158 #endif /* !_IMGACT_AOUT_H_ */ 159