147 lines
3.9 KiB
C
147 lines
3.9 KiB
C
/* $NetBSD: loadfile_ecoff.c,v 1.12 2008/04/28 20:24:06 martin Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1997 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
|
|
* NASA Ames Research Center and by Christos Zoulas.
|
|
*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
#ifdef _STANDALONE
|
|
#include <lib/libsa/stand.h>
|
|
#include <lib/libkern/libkern.h>
|
|
#else
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <err.h>
|
|
#endif
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/exec.h>
|
|
|
|
#include "loadfile.h"
|
|
|
|
#ifdef BOOT_ECOFF
|
|
|
|
int
|
|
loadfile_coff(int fd, struct ecoff_exechdr *coff, u_long *marks, int flags)
|
|
{
|
|
paddr_t offset = marks[MARK_START];
|
|
paddr_t minp = ~0, maxp = 0, pos;
|
|
ssize_t nr;
|
|
|
|
/* some ports dont use the offset */
|
|
offset = offset;
|
|
|
|
/* Read in text. */
|
|
if (lseek(fd, ECOFF_TXTOFF(coff), SEEK_SET) == -1) {
|
|
WARN(("lseek text"));
|
|
return 1;
|
|
}
|
|
|
|
if (coff->a.tsize != 0) {
|
|
if (flags & LOAD_TEXT) {
|
|
PROGRESS(("%lu", coff->a.tsize));
|
|
nr = READ(fd, coff->a.text_start, coff->a.tsize);
|
|
if (nr == -1) {
|
|
return 1;
|
|
}
|
|
if (nr != coff->a.tsize) {
|
|
errno = EIO;
|
|
return 1;
|
|
}
|
|
}
|
|
else {
|
|
if (lseek(fd, coff->a.tsize, SEEK_CUR) == -1) {
|
|
WARN(("read text"));
|
|
return 1;
|
|
}
|
|
}
|
|
if (flags & (COUNT_TEXT|LOAD_TEXT)) {
|
|
pos = coff->a.text_start;
|
|
if (minp > pos)
|
|
minp = pos;
|
|
pos += coff->a.tsize;
|
|
if (maxp < pos)
|
|
maxp = pos;
|
|
}
|
|
}
|
|
|
|
/* Read in data. */
|
|
if (coff->a.dsize != 0) {
|
|
if (flags & LOAD_DATA) {
|
|
PROGRESS(("+%lu", coff->a.dsize));
|
|
nr = READ(fd, coff->a.data_start, coff->a.dsize);
|
|
if (nr == -1) {
|
|
WARN(("read data"));
|
|
return 1;
|
|
}
|
|
if (nr != coff->a.dsize) {
|
|
errno = EIO;
|
|
WARN(("read data"));
|
|
return 1;
|
|
}
|
|
}
|
|
if (flags & (COUNT_DATA|LOAD_DATA)) {
|
|
pos = coff->a.data_start;
|
|
if (minp > pos)
|
|
minp = pos;
|
|
pos += coff->a.dsize;
|
|
if (maxp < pos)
|
|
maxp = pos;
|
|
}
|
|
}
|
|
|
|
/* Zero out bss. */
|
|
if (coff->a.bsize != 0) {
|
|
if (flags & LOAD_BSS) {
|
|
PROGRESS(("+%lu", coff->a.bsize));
|
|
BZERO(coff->a.bss_start, coff->a.bsize);
|
|
}
|
|
if (flags & (COUNT_BSS|LOAD_BSS)) {
|
|
pos = coff->a.bss_start;
|
|
if (minp > pos)
|
|
minp = pos;
|
|
pos = coff->a.bsize;
|
|
if (maxp < pos)
|
|
maxp = pos;
|
|
}
|
|
}
|
|
|
|
marks[MARK_START] = LOADADDR(minp);
|
|
marks[MARK_ENTRY] = LOADADDR(coff->a.entry);
|
|
marks[MARK_NSYM] = 1; /* XXX: Kernel needs >= 0 */
|
|
marks[MARK_SYM] = LOADADDR(maxp);
|
|
marks[MARK_END] = LOADADDR(maxp);
|
|
marks[MARK_DATA] = LOADADDR(coff->a.data_start);
|
|
return 0;
|
|
}
|
|
|
|
#endif /* BOOT_ECOFF */
|