coreboot-kgpe-d16/util/cbfstool/compress.c
Ronald G. Minnich aa2f739ae8 cbfs: fix issues with word size and endianness.
Add XDR functions and use them to convert the ELF headers
to native headers, using the Elf64 structs to ensure we accomodate
all word sizes. Also, use these XDR functions for output.

This may seem overly complex but it turned out to be much the easiest
way to do this. Note that the basic elf parsing function
in cbfs-mkstage.c now works over all ELF files, for all architectures,
endian, and word size combinations. At the same time, the basic elf
parsing in cbfs-mkstage.c is a loop that has no architecture-specific
conditionals.

Add -g to the LDFLAGS while we're here. It's on the CFLAGS so there is
no harm done.

This code has been tested on all chromebooks that use coreboot to date.

I added most of the extra checks from ChromeOS and they triggered a
lot of warnings, hence the other changes. I had to take -Wshadow back
out due to the many errors it triggers in LZMA.

BUG=None
TEST=Build and boot for Peppy; works fine. Build and boot for nyan,
     works fine. Build for qemu targets and armv8 targets.
BRANCH=None

Change-Id: I5a4cee9854799189115ac701e22efc406a8d902f
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Reviewed-on: https://chromium-review.googlesource.com/178606
Reviewed-by: Ronald Minnich <rminnich@chromium.org>
Commit-Queue: Ronald Minnich <rminnich@chromium.org>
Tested-by: Ronald Minnich <rminnich@chromium.org>
Reviewed-on: http://review.coreboot.org/4817
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2014-01-29 20:03:44 +01:00

55 lines
1.6 KiB
C

/*
* compression handling for cbfstool
*
* Copyright (C) 2009 coresystems GmbH
* written by Patrick Georgi <patrick.georgi@coresystems.de>
*
* Adapted from code
* Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>, released
* under identical license terms
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
*/
#include <string.h>
#include <stdio.h>
#include "common.h"
static void lzma_compress(char *in, int in_len, char *out, int *out_len)
{
do_lzma_compress(in, in_len, out, out_len);
}
static void none_compress(char *in, int in_len, char *out, int *out_len)
{
memcpy(out, in, in_len);
*out_len = in_len;
}
comp_func_ptr compression_function(comp_algo algo)
{
comp_func_ptr compress;
switch (algo) {
case CBFS_COMPRESS_NONE:
compress = none_compress;
break;
case CBFS_COMPRESS_LZMA:
compress = lzma_compress;
break;
default:
ERROR("Unknown compression algorithm %d!\n", algo);
return NULL;
}
return compress;
}