Add the bfd-mdsetimage pkgsrc version of mdsetimage - this is Chris
Demetriou's origianal mdsetimage with modifications by Kazuki Sakamoto to use libbfd. It lives in gnusrc because libbfd is GPL, not LGPL.
This commit is contained in:
simonb
parent
458af13ace
commit
ad8890a6fa
66
gnu/usr.sbin/mdsetimage/mdsetimage.8
Normal file
66
gnu/usr.sbin/mdsetimage/mdsetimage.8
Normal file
@ -0,0 +1,66 @@
|
||||
.\" $NetBSD: mdsetimage.8,v 1.1 2001/10/22 03:19:29 simonb Exp $
|
||||
.\"
|
||||
.\" Copyright (c) 1996 Christopher G. Demetriou
|
||||
.\" 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. The name of the author may not be used to endorse or promote products
|
||||
.\" derived from this software without specific prior written permission.
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
||||
.\"
|
||||
.\" <<Id: LICENSE_GC,v 1.1 2001/10/01 23:24:05 cgd Exp>>
|
||||
.\"
|
||||
.Dd October 3, 1996
|
||||
.Dt MDSETIMAGE 8
|
||||
.Os
|
||||
.Sh NAME
|
||||
.Nm mdsetimage
|
||||
.Nd set kernel RAM disk image
|
||||
.Sh SYNOPSIS
|
||||
.Nm
|
||||
.Op Fl b Ar bfdname
|
||||
.Op Fl v
|
||||
.Ar kernel
|
||||
.Ar image
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Nm
|
||||
command copies the disk image specified by
|
||||
.Ar image
|
||||
into the memory disk storage area in
|
||||
.Ar kernel .
|
||||
The file system present in
|
||||
.Ar image
|
||||
will typically be used by the kernel
|
||||
as the root file system.
|
||||
.Pp
|
||||
To recognize kernel executable format, the
|
||||
.Fl b
|
||||
flag specifies BFD name of kernel.
|
||||
.Pp
|
||||
If the
|
||||
.Fl v
|
||||
flag is given,
|
||||
.Nm
|
||||
will print out status information as
|
||||
it is copying the image.
|
||||
.Sh SEE ALSO
|
||||
.Xr md 4 ,
|
||||
.Xr mdconfig 8
|
||||
257
gnu/usr.sbin/mdsetimage/mdsetimage.c
Normal file
257
gnu/usr.sbin/mdsetimage/mdsetimage.c
Normal file
@ -0,0 +1,257 @@
|
||||
/* $NetBSD: mdsetimage.c,v 1.1 2001/10/22 03:19:29 simonb Exp $ */
|
||||
/* from: NetBSD: mdsetimage.c,v 1.15 2001/03/21 23:46:48 cgd Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1996 Christopher G. Demetriou
|
||||
* 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. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
||||
*
|
||||
* <<Id: LICENSE_GC,v 1.1 2001/10/01 23:24:05 cgd Exp>>
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
#ifndef lint
|
||||
__COPYRIGHT(
|
||||
"@(#) Copyright (c) 1996 Christopher G. Demetriou.\
|
||||
All rights reserved.\n");
|
||||
#endif /* not lint */
|
||||
|
||||
#ifndef lint
|
||||
__RCSID("$NetBSD: mdsetimage.c,v 1.1 2001/10/22 03:19:29 simonb Exp $");
|
||||
#endif /* not lint */
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <sys/mman.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
#include <err.h>
|
||||
#include <fcntl.h>
|
||||
#include <limits.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
#include <bfd.h>
|
||||
|
||||
struct symbols {
|
||||
char *name;
|
||||
bfd_vma vma;
|
||||
size_t offset;
|
||||
} md_root_symbols[] = {
|
||||
#define X_MD_ROOT_IMAGE 0
|
||||
{ "_md_root_image", NULL, 0 },
|
||||
#define X_MD_ROOT_SIZE 1
|
||||
{ "_md_root_size", NULL, 0 },
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
int main __P((int, char *[]));
|
||||
static void usage __P((void)) __attribute__((noreturn));
|
||||
static int find_md_root __P((bfd *, struct symbols symbols[]));
|
||||
|
||||
int verbose;
|
||||
|
||||
static const char *progname;
|
||||
#undef setprogname
|
||||
#define setprogname(x) (void)(progname = (x))
|
||||
#undef getprogname
|
||||
#define getprogname() (progname)
|
||||
|
||||
int
|
||||
main(argc, argv)
|
||||
int argc;
|
||||
char *argv[];
|
||||
{
|
||||
int ch, kfd, fsfd, rv;
|
||||
struct stat ksb, fssb;
|
||||
size_t md_root_offset;
|
||||
u_int32_t md_root_size;
|
||||
const char *kfile, *fsfile;
|
||||
char *mappedkfile;
|
||||
char *bfdname = NULL;
|
||||
bfd *abfd;
|
||||
|
||||
setprogname(argv[0]);
|
||||
|
||||
while ((ch = getopt(argc, argv, "b:v")) != -1)
|
||||
switch (ch) {
|
||||
case 'b':
|
||||
bfdname = optarg;
|
||||
break;
|
||||
case 'v':
|
||||
verbose = 1;
|
||||
break;
|
||||
case '?':
|
||||
default:
|
||||
usage();
|
||||
}
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
|
||||
if (argc != 2)
|
||||
usage();
|
||||
kfile = argv[0];
|
||||
fsfile = argv[1];
|
||||
|
||||
if ((kfd = open(kfile, O_RDWR, 0)) == -1)
|
||||
err(1, "open %s", kfile);
|
||||
|
||||
bfd_init();
|
||||
if ((abfd = bfd_fdopenr(kfile, bfdname, kfd)) == NULL) {
|
||||
bfd_perror("open");
|
||||
exit(1);
|
||||
}
|
||||
if (!bfd_check_format(abfd, bfd_object)) {
|
||||
bfd_perror("check format");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (find_md_root(abfd, md_root_symbols) != 0)
|
||||
errx(1, "could not find symbols in %s", kfile);
|
||||
if (verbose)
|
||||
fprintf(stderr, "got symbols from %s\n", kfile);
|
||||
|
||||
if (fstat(kfd, &ksb) == -1)
|
||||
err(1, "fstat %s", kfile);
|
||||
if (ksb.st_size != (size_t)ksb.st_size)
|
||||
errx(1, "%s too big to map", kfile);
|
||||
|
||||
if ((mappedkfile = mmap(NULL, ksb.st_size, PROT_READ | PROT_WRITE,
|
||||
MAP_FILE | MAP_SHARED, kfd, 0)) == (caddr_t)-1)
|
||||
err(1, "mmap %s", kfile);
|
||||
if (verbose)
|
||||
fprintf(stderr, "mapped %s\n", kfile);
|
||||
|
||||
md_root_offset = md_root_symbols[X_MD_ROOT_IMAGE].offset;
|
||||
md_root_size = bfd_get_32(abfd,
|
||||
&mappedkfile[md_root_symbols[X_MD_ROOT_SIZE].offset]);
|
||||
|
||||
if ((fsfd = open(fsfile, O_RDONLY, 0)) == -1)
|
||||
err(1, "open %s", fsfile);
|
||||
if (fstat(fsfd, &fssb) == -1)
|
||||
err(1, "fstat %s", fsfile);
|
||||
if (fssb.st_size != (size_t)fssb.st_size)
|
||||
errx(1, "fs image is too big");
|
||||
if (fssb.st_size > md_root_size)
|
||||
errx(1, "fs image (%lld bytes) too big for buffer (%lu bytes)",
|
||||
(long long)fssb.st_size, (unsigned long)md_root_size);
|
||||
|
||||
if (verbose)
|
||||
fprintf(stderr, "copying image from %s into %s\n", fsfile,
|
||||
kfile);
|
||||
if ((rv = read(fsfd, mappedkfile + md_root_offset,
|
||||
fssb.st_size)) != fssb.st_size) {
|
||||
if (rv == -1)
|
||||
err(1, "read %s", fsfile);
|
||||
else
|
||||
errx(1, "unexpected EOF reading %s", fsfile);
|
||||
}
|
||||
if (verbose)
|
||||
fprintf(stderr, "done copying image\n");
|
||||
|
||||
close(fsfd);
|
||||
|
||||
munmap(mappedkfile, ksb.st_size);
|
||||
close(kfd);
|
||||
|
||||
if (verbose)
|
||||
fprintf(stderr, "exiting\n");
|
||||
|
||||
bfd_close(abfd);
|
||||
exit(0);
|
||||
}
|
||||
|
||||
static void
|
||||
usage()
|
||||
{
|
||||
const char **list;
|
||||
|
||||
fprintf(stderr,
|
||||
"usage: %s [-b bfdname] [-v] kernel_file fsimage_file\n",
|
||||
getprogname());
|
||||
fprintf(stderr, "supported targets:");
|
||||
for (list = bfd_target_list(); *list != NULL; list++)
|
||||
fprintf(stderr, " %s", *list);
|
||||
fprintf(stderr, "\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
static int
|
||||
find_md_root(abfd, symbols)
|
||||
bfd *abfd;
|
||||
struct symbols symbols[];
|
||||
{
|
||||
long i;
|
||||
long storage_needed;
|
||||
long number_of_symbols;
|
||||
asymbol **symbol_table = NULL;
|
||||
struct symbols *s;
|
||||
struct sec *p;
|
||||
|
||||
storage_needed = bfd_get_symtab_upper_bound(abfd);
|
||||
if (storage_needed <= 0)
|
||||
return (1);
|
||||
|
||||
symbol_table = (asymbol **)malloc(storage_needed);
|
||||
if (symbol_table == NULL)
|
||||
return (1);
|
||||
|
||||
number_of_symbols = bfd_canonicalize_symtab(abfd, symbol_table);
|
||||
if (number_of_symbols <= 0) {
|
||||
free(symbol_table);
|
||||
return (1);
|
||||
}
|
||||
|
||||
for (i = 0; i < number_of_symbols; i++) {
|
||||
for (s = symbols; s->name != NULL; s++) {
|
||||
const char *sym = bfd_asymbol_name(symbol_table[i]);
|
||||
|
||||
/*
|
||||
* match symbol prefix '_' or ''.
|
||||
*/
|
||||
if (!strcmp(s->name, sym) ||
|
||||
!strcmp(s->name + 1, sym)) {
|
||||
s->vma = bfd_asymbol_value(symbol_table[i]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
free(symbol_table);
|
||||
|
||||
for (s = symbols; s->name != NULL; s++) {
|
||||
if (s->vma == NULL)
|
||||
return (1);
|
||||
|
||||
for (p = abfd->sections; p != NULL; p = p->next) {
|
||||
if (p->vma > s->vma || p->vma + p->_raw_size < s->vma)
|
||||
continue;
|
||||
|
||||
s->offset = (size_t)(p->filepos + (s->vma - p->vma));
|
||||
}
|
||||
|
||||
if (s->offset == 0)
|
||||
return (1);
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user