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 ( le32toh((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 = htole32((((flag) & 0x3f) <<26) | \ 46 (((mid) & 0x03ff) << 16) | \ 47 ((mag) & 0xffff)) ) 48 49 #define N_GETMAGIC_NET(ex) \ 50 (ntohl((ex).a_midmag) & 0xffff) 51 #define N_GETMID_NET(ex) \ 52 ((ntohl((ex).a_midmag) >> 16) & 0x03ff) 53 #define N_GETFLAG_NET(ex) \ 54 ((ntohl((ex).a_midmag) >> 26) & 0x3f) 55 #define N_SETMAGIC_NET(ex,mag,mid,flag) \ 56 ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) \ 57 | (((mag)&0xffff)) ) ) 58 59 #define N_ALIGN(ex,x) \ 60 (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \ 61 N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \ 62 ((x) + __LDPGSZ - 1) & ~(uint32_t)(__LDPGSZ - 1) : (x)) 63 64 /* Valid magic number check. */ 65 #define N_BADMAG(ex) \ 66 (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \ 67 N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \ 68 N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \ 69 N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC) 70 71 72 /* Address of the bottom of the text segment. */ 73 /* 74 * This can not be done right. Abuse a_entry in some cases to handle kernels. 75 */ 76 #define N_TXTADDR(ex) \ 77 ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \ 78 N_GETMAGIC(ex) == ZMAGIC) ? \ 79 (le32toh((ex).a_entry) < le32toh((ex).a_text) ? 0 : \ 80 le32toh((ex).a_entry) & ~__LDPGSZ) : __LDPGSZ) 81 82 /* Address of the bottom of the data segment. */ 83 #define N_DATADDR(ex) \ 84 N_ALIGN(ex, N_TXTADDR(ex) + le32toh((ex).a_text)) 85 86 /* Text segment offset. */ 87 #define N_TXTOFF(ex) \ 88 (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \ 89 N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec)) 90 91 /* Data segment offset. */ 92 #define N_DATOFF(ex) \ 93 N_ALIGN(ex, N_TXTOFF(ex) + le32toh((ex).a_text)) 94 95 /* Relocation table offset. */ 96 #define N_RELOFF(ex) \ 97 N_ALIGN(ex, N_DATOFF(ex) + le32toh((ex).a_data)) 98 99 /* Symbol table offset. */ 100 #define N_SYMOFF(ex) \ 101 (N_RELOFF(ex) + le32toh((ex).a_trsize) + le32toh((ex).a_drsize)) 102 103 /* String table offset. */ 104 #define N_STROFF(ex) (N_SYMOFF(ex) + le32toh((ex).a_syms)) 105 106 /* 107 * Header prepended to each a.out file. 108 * Only manipulate the a_midmag field via the 109 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros. 110 */ 111 112 struct exec { 113 uint32_t a_midmag; /* flags<<26 | mid<<16 | magic */ 114 uint32_t a_text; /* text segment size */ 115 uint32_t a_data; /* initialized data size */ 116 uint32_t a_bss; /* uninitialized data size */ 117 uint32_t a_syms; /* symbol table size */ 118 uint32_t a_entry; /* entry point */ 119 uint32_t a_trsize; /* text relocation size */ 120 uint32_t a_drsize; /* data relocation size */ 121 }; 122 #define a_magic a_midmag /* XXX Hack to work with imgact_{aout,gzip}.c */ 123 124 /* a_magic */ 125 #define OMAGIC 0407 /* old impure format */ 126 #define NMAGIC 0410 /* read-only text */ 127 #define ZMAGIC 0413 /* demand load format */ 128 #define QMAGIC 0314 /* "compact" demand load format */ 129 130 /* a_mid */ 131 #define MID_ZERO 0 /* unknown - implementation dependent */ 132 #define MID_SUN010 1 /* sun 68010/68020 binary */ 133 #define MID_SUN020 2 /* sun 68020-only binary */ 134 #define MID_I386 134 /* i386 BSD binary */ 135 #define MID_SPARC 138 /* sparc */ 136 #define MID_ARM6 143 /* ARM6 */ 137 #define MID_HP200 200 /* hp200 (68010) BSD binary */ 138 #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */ 139 #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */ 140 #define MID_HPUX800 0x20B /* hp800 HP-UX binary */ 141 142 /* 143 * a_flags 144 */ 145 #define EX_PIC 0x10 /* contains position independent code */ 146 #define EX_DYNAMIC 0x20 /* contains run-time link-edit info */ 147 #define EX_DPMASK 0x30 /* mask for the above */ 148 149 #ifdef _KERNEL 150 struct thread; 151 struct vnode; 152 153 int aout_coredump(struct thread *td, struct vnode *vp, off_t limit, 154 int flags); 155 #endif 156 157 #endif /* !_IMGACT_AOUT_H_ */ 158