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Diffstat (limited to 'sys/amd64/include/exec.h')
| -rw-r--r-- | sys/amd64/include/exec.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/sys/amd64/include/exec.h b/sys/amd64/include/exec.h new file mode 100644 index 0000000..15f40c7 --- /dev/null +++ b/sys/amd64/include/exec.h @@ -0,0 +1,150 @@ +/*- + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)exec.h 8.1 (Berkeley) 6/11/93 + * $Id: exec.h,v 1.3 1994/08/02 07:38:45 davidg Exp $ + */ + +#ifndef _EXEC_H_ +#define _EXEC_H_ + +#if defined(hp300) || defined(i386) +#define __LDPGSZ 4096 +#endif +#if defined(tahoe) || defined(vax) +#define __LDPGSZ 1024 +#endif + +#define N_GETMAGIC(ex) \ + ( (ex).a_midmag & 0xffff ) +#define N_GETMID(ex) \ + ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETMID_NET(ex) : \ + ((ex).a_midmag >> 16) & 0x03ff ) +#define N_GETFLAG(ex) \ + ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETFLAG_NET(ex) : \ + ((ex).a_midmag >> 26) & 0x3f ) +#define N_SETMAGIC(ex,mag,mid,flag) \ + ( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \ + ((mag) & 0xffff) ) + +#define N_GETMAGIC_NET(ex) \ + (ntohl((ex).a_midmag) & 0xffff) +#define N_GETMID_NET(ex) \ + ((ntohl((ex).a_midmag) >> 16) & 0x03ff) +#define N_GETFLAG_NET(ex) \ + ((ntohl((ex).a_midmag) >> 26) & 0x3f) +#define N_SETMAGIC_NET(ex,mag,mid,flag) \ + ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \ + (((mag)&0xffff)) ) ) + +#define N_ALIGN(ex,x) \ + (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \ + N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \ + ((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x)) + +/* Valid magic number check. */ +#define N_BADMAG(ex) \ + (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \ + N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \ + N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \ + N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC) + + +/* Address of the bottom of the text segment. */ +#define N_TXTADDR(ex) \ + ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \ + N_GETMAGIC(ex) == ZMAGIC) ? 0 : __LDPGSZ) + +/* Address of the bottom of the data segment. */ +#define N_DATADDR(ex) \ + N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text) + +/* Text segment offset. */ +#define N_TXTOFF(ex) \ + (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \ + N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec)) + +/* Data segment offset. */ +#define N_DATOFF(ex) \ + N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text) + +/* Relocation table offset. */ +#define N_RELOFF(ex) \ + N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data) + +/* Symbol table offset. */ +#define N_SYMOFF(ex) \ + (N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize) + +/* String table offset. */ +#define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms) + +/* + * Header prepended to each a.out file. + * only manipulate the a_midmag field via the + * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h + */ + +struct exec { + unsigned long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */ + unsigned long a_text; /* text segment size */ + unsigned long a_data; /* initialized data size */ + unsigned long a_bss; /* uninitialized data size */ + unsigned long a_syms; /* symbol table size */ + unsigned long a_entry; /* entry point */ + unsigned long a_trsize; /* text relocation size */ + unsigned long a_drsize; /* data relocation size */ +}; +#define a_magic a_midmag /* XXX Hack to work with current kern_execve.c */ + +/* a_magic */ +#define OMAGIC 0407 /* old impure format */ +#define NMAGIC 0410 /* read-only text */ +#define ZMAGIC 0413 /* demand load format */ +#define QMAGIC 0314 /* "compact" demand load format */ + +/* a_mid */ +#define MID_ZERO 0 /* unknown - implementation dependent */ +#define MID_SUN010 1 /* sun 68010/68020 binary */ +#define MID_SUN020 2 /* sun 68020-only binary */ +#define MID_I386 134 /* i386 BSD binary */ +#define MID_HP200 200 /* hp200 (68010) BSD binary */ +#define MID_HP300 300 /* hp300 (68020+68881) BSD binary */ +#define MID_HPUX 0x20C /* hp200/300 HP-UX binary */ +#define MID_HPUX800 0x20B /* hp800 HP-UX binary */ + +/* + * a_flags + */ +#define EX_DYNAMIC 0x20 /* a.out contains run-time link-edit info */ + +#endif /* !_EXEC_H_ */ |
