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 */ 32 33 #ifndef _SYS_IMGACT_AOUT_H_ 34 #define _SYS_IMGACT_AOUT_H_ 35 36 #ifndef _SYS_TYPES_H_ 37 #include <sys/types.h> 38 #endif 39 40 #define N_GETMAGIC(ex) \ 41 ( (ex).a_midmag & 0xffff ) 42 #define N_GETMID(ex) \ 43 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETMID_NET(ex) : \ 44 ((ex).a_midmag >> 16) & 0x03ff ) 45 #define N_GETFLAG(ex) \ 46 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETFLAG_NET(ex) : \ 47 ((ex).a_midmag >> 26) & 0x3f ) 48 #define N_SETMAGIC(ex,mag,mid,flag) \ 49 ( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \ 50 ((mag) & 0xffff) ) 51 52 #define N_GETMAGIC_NET(ex) \ 53 (ntohl((ex).a_midmag) & 0xffff) 54 #define N_GETMID_NET(ex) \ 55 ((ntohl((ex).a_midmag) >> 16) & 0x03ff) 56 #define N_GETFLAG_NET(ex) \ 57 ((ntohl((ex).a_midmag) >> 26) & 0x3f) 58 #define N_SETMAGIC_NET(ex,mag,mid,flag) \ 59 ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \ 60 (((mag)&0xffff)) ) ) 61 62 #define N_ALIGN(ex,x) \ 63 (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \ 64 N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \ 65 ((x) + __LDPGSZ - 1) & ~(unsigned long)(__LDPGSZ - 1) : (x)) 66 67 /* Valid magic number check. */ 68 #define N_BADMAG(ex) \ 69 (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \ 70 N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \ 71 N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \ 72 N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC) 73 74 75 /* Address of the bottom of the text segment. */ 76 /* 77 * This can not be done right. Abuse a_entry in some cases to handle kernels. 78 */ 79 #define N_TXTADDR(ex) \ 80 ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \ 81 N_GETMAGIC(ex) == ZMAGIC) ? \ 82 ((ex).a_entry < (ex).a_text ? 0 : (ex).a_entry & ~__LDPGSZ) : __LDPGSZ) 83 84 /* Address of the bottom of the data segment. */ 85 #define N_DATADDR(ex) \ 86 N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text) 87 88 /* Text segment offset. */ 89 #define N_TXTOFF(ex) \ 90 (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \ 91 N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec)) 92 93 /* Data segment offset. */ 94 #define N_DATOFF(ex) \ 95 N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text) 96 97 /* Relocation table offset. */ 98 #define N_RELOFF(ex) \ 99 N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data) 100 101 /* Symbol table offset. */ 102 #define N_SYMOFF(ex) \ 103 (N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize) 104 105 /* String table offset. */ 106 #define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms) 107 108 /* 109 * Header prepended to each a.out file. 110 * only manipulate the a_midmag field via the 111 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h 112 * 113 * AOUT_H_FORCE32 is used by btxld and stand/boot when compiling 114 * from a 64 bit environment to generate a 32 bit a.out.h header. 115 */ 116 117 #ifdef AOUT_H_FORCE32 118 typedef u_int32_t aout_register_t; 119 #else 120 typedef unsigned long aout_register_t; 121 #endif 122 123 struct exec { 124 aout_register_t a_midmag; /* flags<<26 | mid<<16 | magic */ 125 aout_register_t a_text; /* text segment size */ 126 aout_register_t a_data; /* initialized data size */ 127 aout_register_t a_bss; /* uninitialized data size */ 128 aout_register_t a_syms; /* symbol table size */ 129 aout_register_t a_entry; /* entry point */ 130 aout_register_t a_trsize; /* text relocation size */ 131 aout_register_t a_drsize; /* data relocation size */ 132 }; 133 #define a_magic a_midmag /* XXX Hack to work with current kern_execve.c */ 134 135 /* a_magic */ 136 #define OMAGIC 0407 /* old impure format */ 137 #define NMAGIC 0410 /* read-only text */ 138 #define ZMAGIC 0413 /* demand load format */ 139 #define QMAGIC 0314 /* "compact" demand load format */ 140 141 /* a_mid */ 142 #define MID_ZERO 0 /* unknown - implementation dependent */ 143 #define MID_SUN010 1 /* sun 68010/68020 binary */ 144 #define MID_SUN020 2 /* sun 68020-only binary */ 145 #define MID_I386 134 /* i386 BSD binary */ 146 #define MID_SPARC 138 /* sparc */ 147 #define MID_HP200 200 /* hp200 (68010) BSD binary */ 148 #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */ 149 #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */ 150 #define MID_HPUX800 0x20B /* hp800 HP-UX binary */ 151 152 /* 153 * a_flags 154 */ 155 #define EX_PIC 0x10 /* contains position independent code */ 156 #define EX_DYNAMIC 0x20 /* contains run-time link-edit info */ 157 #define EX_DPMASK 0x30 /* mask for the above */ 158 159 #ifdef _KERNEL 160 struct proc; 161 struct vnode; 162 #endif 163 164 #endif /* !_SYS_IMGACT_AOUT_H_ */ 165