diff options
Diffstat (limited to 'usr.sbin/btxld')
| -rw-r--r-- | usr.sbin/btxld/a.out.h | 86 | ||||
| -rw-r--r-- | usr.sbin/btxld/btxld.c | 3 |
2 files changed, 87 insertions, 2 deletions
diff --git a/usr.sbin/btxld/a.out.h b/usr.sbin/btxld/a.out.h new file mode 100644 index 0000000..750c807 --- /dev/null +++ b/usr.sbin/btxld/a.out.h @@ -0,0 +1,86 @@ +/*- + * 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. + * + * from: @(#)exec.h 8.1 (Berkeley) 6/11/93 + * from: FreeBSD: src/sys/sys/imgact_aout.h,v 1.18 2002/09/05 07:54:03 bde Exp $ + * $FreeBSD$ + */ + +#include <sys/types.h> + +#define N_GETMAGIC(ex) \ + ( (ex).a_midmag & 0xffff ) +#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 __LDPGSZ 4096 +#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) & ~(uint32_t)(__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) + +/* + * 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 { + uint32_t a_midmag; /* flags<<26 | mid<<16 | magic */ + uint32_t a_text; /* text segment size */ + uint32_t a_data; /* initialized data size */ + uint32_t a_bss; /* uninitialized data size */ + uint32_t a_syms; /* symbol table size */ + uint32_t a_entry; /* entry point */ + uint32_t a_trsize; /* text relocation size */ + uint32_t a_drsize; /* data relocation size */ +}; + +/* 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 */ diff --git a/usr.sbin/btxld/btxld.c b/usr.sbin/btxld/btxld.c index f7a5e46..d5750f2 100644 --- a/usr.sbin/btxld/btxld.c +++ b/usr.sbin/btxld/btxld.c @@ -42,8 +42,7 @@ static const char rcsid[] = #include <string.h> #include <unistd.h> -#include <a.out.h> - +#include "a.out.h" #include "btx.h" #include "elfh.h" |
