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2f5c48d0b2
for this is that currently, if you select no compression, the bss segment of filo takes up 153K with just zeroes. With this patch, it always takes up a lar header + 1 byte. I left the one byte so that the checksum wouldn't be broken. This patch could have taken out the calloc in the compression area, but since it only uses compile-time memory, I decided to keep this simple. Myles Signed-off-by: Myles Watson <myles@pel.cs.byu.edu> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://coreboot.org/repository/coreboot-v3@601 f3766cd6-281f-0410-b1cd-43a5c92072e9
98 lines
4 KiB
C
98 lines
4 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2006 coresystems GmbH
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* (Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH)
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*
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* This file is dual-licensed. You can choose between:
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* - The GNU GPL, version 2, as published by the Free Software Foundation
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* - The revised BSD license (without advertising clause)
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*
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* ---------------------------------------------------------------------------
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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*/
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#ifndef LAR_H
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#define LAR_H
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#include <types.h>
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#include <shared.h>
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#define MAGIC "LARCHIVE"
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#define MAX_PATHLEN 1024
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/* NOTE -- This and the user-mode lar.h may NOT be in sync. Be careful. */
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struct lar_header {
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char magic[8];
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u32 len;
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u32 reallen;
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u32 checksum;
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u32 compchecksum;
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u32 offset;
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/* Compression:
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* 0 = no compression
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* 1 = lzma
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* 2 = nrv2b
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* 3 = zeroes
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*/
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u32 compression;
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u64 entry;
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u64 loadaddress;
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};
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struct mem_file {
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void *start;
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int len;
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u32 reallen;
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u32 compression;
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void *entry;
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void *loadaddress;
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};
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/* Prototypes. */
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/* architecture-defined */
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SHARED(init_archive, void, struct mem_file *);
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/* architecture-independent */
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SHARED(find_file, int, const struct mem_file *archive, const char *filename, struct mem_file *result);
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SHARED(copy_file, int, const struct mem_file *archive, const char *filename, void *where);
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SHARED(run_file, int, const struct mem_file *archive, const char *filename, void *where);
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SHARED(execute_in_place, int, const struct mem_file *archive, const char *filename);
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SHARED(run_address, int, void *f);
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SHARED(load_file, void *, const struct mem_file *archive, const char *filename);
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SHARED(load_file_segments, void *, const struct mem_file *archive, const char *filename);
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SHARED(process_file, int, const struct mem_file *archive, void *where);
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#endif /* LAR_H */
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