119 lines
3.7 KiB
C
119 lines
3.7 KiB
C
/* $NetBSD: nlist.c,v 1.14 1996/09/30 18:27:02 thorpej Exp $ */
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/*-
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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#if 0
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static char sccsid[] = "from: @(#)nlist.c 8.1 (Berkeley) 6/6/93";
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#else
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static char *rcsid = "$NetBSD: nlist.c,v 1.14 1996/09/30 18:27:02 thorpej Exp $";
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <a.out.h>
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#include <db.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <kvm.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "extern.h"
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static struct {
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int (*knlist) __P((const char *, DB *));
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} knlist_fmts[] = {
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#ifdef NLIST_AOUT
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{ create_knlist_aout },
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#endif
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#ifdef NLIST_ECOFF
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{ create_knlist_ecoff },
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#endif
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#ifdef NLIST_ELF32
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{ create_knlist_elf32 },
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#endif
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#ifdef NLIST_ELF64
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{ create_knlist_elf64 },
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#endif
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};
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void
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create_knlist(name, db)
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const char *name;
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DB *db;
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{
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int i;
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for (i = 0; i < sizeof(knlist_fmts) / sizeof(knlist_fmts[0]); i++)
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if ((*knlist_fmts[i].knlist)(name, db) != -1)
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return;
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warnx("%s: file format not recognized", name);
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punt();
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}
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/*
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* XXX: Using this value from machine/param.h introduces a
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* XXX: machine dependency on this program, so /usr can not
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* XXX: be shared between (i.e.) several m68k machines.
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* Instead of compiling in KERNTEXTOFF or KERNBASE, try to
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* determine the text start address from a standard symbol.
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* For backward compatibility, use the old compiled-in way
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* when the standard symbol name is not found.
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*/
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#ifndef KERNTEXTOFF
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#define KERNTEXTOFF KERNBASE
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#endif
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u_long
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get_kerntext(name)
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const char *name;
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{
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struct nlist nl[2];
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bzero((caddr_t)nl, sizeof(nl));
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nl[0].n_un.n_name = "_kernel_text";
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if (nlist(name, nl) != 0)
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return (KERNTEXTOFF);
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return (nl[0].n_value);
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}
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