| 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 1.3 2003/08/20 07:31:21 rob Exp $ |
| 36 | */ |
| 37 | |
| 38 | #ifndef _IMGACT_AOUT_H_ |
| 39 | #define _IMGACT_AOUT_H_ |
| 40 | |
| 41 | #define N_GETMAGIC(ex) \ |
| 42 | ( (ex).a_midmag & 0xffff ) |
| 43 | #define N_GETMID(ex) \ |
| 44 | ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETMID_NET(ex) : \ |
| 45 | ((ex).a_midmag >> 16) & 0x03ff ) |
| 46 | #define N_GETFLAG(ex) \ |
| 47 | ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETFLAG_NET(ex) : \ |
| 48 | ((ex).a_midmag >> 26) & 0x3f ) |
| 49 | #define N_SETMAGIC(ex,mag,mid,flag) \ |
| 50 | ( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \ |
| 51 | ((mag) & 0xffff) ) |
| 52 | |
| 53 | #define N_GETMAGIC_NET(ex) \ |
| 54 | (ntohl((ex).a_midmag) & 0xffff) |
| 55 | #define N_GETMID_NET(ex) \ |
| 56 | ((ntohl((ex).a_midmag) >> 16) & 0x03ff) |
| 57 | #define N_GETFLAG_NET(ex) \ |
| 58 | ((ntohl((ex).a_midmag) >> 26) & 0x3f) |
| 59 | #define N_SETMAGIC_NET(ex,mag,mid,flag) \ |
| 60 | ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \ |
| 61 | (((mag)&0xffff)) ) ) |
| 62 | |
| 63 | #define N_ALIGN(ex,x) \ |
| 64 | (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \ |
| 65 | N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \ |
| 66 | ((x) + __LDPGSZ - 1) & ~(unsigned long)(__LDPGSZ - 1) : (x)) |
| 67 | |
| 68 | /* Valid magic number check. */ |
| 69 | #define N_BADMAG(ex) \ |
| 70 | (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \ |
| 71 | N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \ |
| 72 | N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \ |
| 73 | N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC) |
| 74 | |
| 75 | |
| 76 | /* Address of the bottom of the text segment. */ |
| 77 | /* |
| 78 | * This can not be done right. Abuse a_entry in some cases to handle kernels. |
| 79 | */ |
| 80 | #define N_TXTADDR(ex) \ |
| 81 | ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \ |
| 82 | N_GETMAGIC(ex) == ZMAGIC) ? \ |
| 83 | ((ex).a_entry < (ex).a_text ? 0 : (ex).a_entry & ~__LDPGSZ) : __LDPGSZ) |
| 84 | |
| 85 | /* Address of the bottom of the data segment. */ |
| 86 | #define N_DATADDR(ex) \ |
| 87 | N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text) |
| 88 | |
| 89 | /* Text segment offset. */ |
| 90 | #define N_TXTOFF(ex) \ |
| 91 | (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \ |
| 92 | N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec)) |
| 93 | |
| 94 | /* Data segment offset. */ |
| 95 | #define N_DATOFF(ex) \ |
| 96 | N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text) |
| 97 | |
| 98 | /* Relocation table offset. */ |
| 99 | #define N_RELOFF(ex) \ |
| 100 | N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data) |
| 101 | |
| 102 | /* Symbol table offset. */ |
| 103 | #define N_SYMOFF(ex) \ |
| 104 | (N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize) |
| 105 | |
| 106 | /* String table offset. */ |
| 107 | #define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms) |
| 108 | |
| 109 | /* |
| 110 | * Header prepended to each a.out file. |
| 111 | * only manipulate the a_midmag field via the |
| 112 | * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h |
| 113 | */ |
| 114 | |
| 115 | struct exec { |
| 116 | unsigned long a_midmag; /* flags<<26 | mid<<16 | magic */ |
| 117 | unsigned long a_text; /* text segment size */ |
| 118 | unsigned long a_data; /* initialized data size */ |
| 119 | unsigned long a_bss; /* uninitialized data size */ |
| 120 | unsigned long a_syms; /* symbol table size */ |
| 121 | unsigned long a_entry; /* entry point */ |
| 122 | unsigned long a_trsize; /* text relocation size */ |
| 123 | unsigned long a_drsize; /* data relocation size */ |
| 124 | }; |
| 125 | #define a_magic a_midmag /* XXX Hack to work with current kern_execve.c */ |
| 126 | |
| 127 | /* a_magic */ |
| 128 | #define OMAGIC 0407 /* old impure format */ |
| 129 | #define NMAGIC 0410 /* read-only text */ |
| 130 | #define ZMAGIC 0413 /* demand load format */ |
| 131 | #define QMAGIC 0314 /* "compact" demand load format */ |
| 132 | |
| 133 | /* a_mid */ |
| 134 | #define MID_ZERO 0 /* unknown - implementation dependent */ |
| 135 | #define MID_SUN010 1 /* sun 68010/68020 binary */ |
| 136 | #define MID_SUN020 2 /* sun 68020-only binary */ |
| 137 | #define MID_I386 134 /* i386 BSD binary */ |
| 138 | #define MID_SPARC 138 /* sparc */ |
| 139 | #define MID_HP200 200 /* hp200 (68010) BSD binary */ |
| 140 | #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */ |
| 141 | #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */ |
| 142 | #define MID_HPUX800 0x20B /* hp800 HP-UX binary */ |
| 143 | |
| 144 | /* |
| 145 | * a_flags |
| 146 | */ |
| 147 | #define EX_PIC 0x10 /* contains position independent code */ |
| 148 | #define EX_DYNAMIC 0x20 /* contains run-time link-edit info */ |
| 149 | #define EX_DPMASK 0x30 /* mask for the above */ |
| 150 | |
| 151 | #ifdef _KERNEL |
| 152 | struct proc; |
| 153 | |
| 154 | int aout_coredump (struct proc *p, struct vnode *vp, off_t limit); |
| 155 | #endif |
| 156 | |
| 157 | #endif /* !_IMGACT_AOUT_H_ */ |