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. 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: src/sys/sys/imgact_aout.h,v 1.13 1999/12/29 04:24:41 peter Exp $ 31 * $DragonFly: src/sys/sys/imgact_aout.h,v 1.6 2007/02/03 09:56:04 y0netan1 Exp $ 32 */ 33 34 #ifndef _IMGACT_AOUT_H_ 35 #define _IMGACT_AOUT_H_ 36 37 #ifndef _SYS_TYPES_H_ 38 #include <sys/types.h> 39 #endif 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 * AOUT_H_FORCE32 is used by btxld and sys/boot when compiling 115 * from a 64 bit environment to generate a 32 bit a.out.h header. 116 */ 117 118 #ifdef AOUT_H_FORCE32 119 typedef u_int32_t aout_register_t; 120 #else 121 typedef unsigned long aout_register_t; 122 #endif 123 124 struct exec { 125 aout_register_t a_midmag; /* flags<<26 | mid<<16 | magic */ 126 aout_register_t a_text; /* text segment size */ 127 aout_register_t a_data; /* initialized data size */ 128 aout_register_t a_bss; /* uninitialized data size */ 129 aout_register_t a_syms; /* symbol table size */ 130 aout_register_t a_entry; /* entry point */ 131 aout_register_t a_trsize; /* text relocation size */ 132 aout_register_t a_drsize; /* data relocation size */ 133 }; 134 #define a_magic a_midmag /* XXX Hack to work with current kern_execve.c */ 135 136 /* a_magic */ 137 #define OMAGIC 0407 /* old impure format */ 138 #define NMAGIC 0410 /* read-only text */ 139 #define ZMAGIC 0413 /* demand load format */ 140 #define QMAGIC 0314 /* "compact" demand load format */ 141 142 /* a_mid */ 143 #define MID_ZERO 0 /* unknown - implementation dependent */ 144 #define MID_SUN010 1 /* sun 68010/68020 binary */ 145 #define MID_SUN020 2 /* sun 68020-only binary */ 146 #define MID_I386 134 /* i386 BSD binary */ 147 #define MID_SPARC 138 /* sparc */ 148 #define MID_HP200 200 /* hp200 (68010) BSD binary */ 149 #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */ 150 #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */ 151 #define MID_HPUX800 0x20B /* hp800 HP-UX binary */ 152 153 /* 154 * a_flags 155 */ 156 #define EX_PIC 0x10 /* contains position independent code */ 157 #define EX_DYNAMIC 0x20 /* contains run-time link-edit info */ 158 #define EX_DPMASK 0x30 /* mask for the above */ 159 160 #ifdef _KERNEL 161 struct proc; 162 struct vnode; 163 #endif 164 165 #endif /* !_IMGACT_AOUT_H_ */ 166