GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
coreboot-kgpe-d16/payloads/libpayload/liblzma/lzma.c

48 lines
1.3 KiB
C
Raw Normal View History

libpayload: Add liblzma, libcbfs Add cbfs core from coreboot into libpayload, and to support lzma decode, add coreboot's lzma code, too. Carl-Daniel agreed to relicense the lzmadecode wrapper as BSD-l, solving licensing problems. Change-Id: Id28990fe7e951d99447e265a4880d70a8f208dd2 Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/115 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Marc Jones <marcj303@gmail.com>
2011-07-21 15:43:14 +02:00
/*
* coreboot interface to memory-saving variant of LZMA decoder
*
* Copyright (C) 2006 Carl-Daniel Hailfinger
* Released under the BSD license
*
* Parts of this file are based on C/7zip/Compress/LZMA_C/LzmaTest.c from the LZMA
* SDK 4.42, which is written and distributed to public domain by Igor Pavlov.
*
*/
#include <lzma.h>
#include <stdio.h>
#include <string.h>
#include "lzmadecode.c"
libpayload: Make the source for lzma decompression const Change-Id: I9a16331dedc97f17af94bf2cf535a9c93d1729a0 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: http://review.coreboot.org/2667 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marc.jones@se-eng.com> Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-02-12 05:43:45 +01:00
unsigned long ulzma(const unsigned char * src, unsigned char * dst)
libpayload: Add liblzma, libcbfs Add cbfs core from coreboot into libpayload, and to support lzma decode, add coreboot's lzma code, too. Carl-Daniel agreed to relicense the lzmadecode wrapper as BSD-l, solving licensing problems. Change-Id: Id28990fe7e951d99447e265a4880d70a8f208dd2 Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/115 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Marc Jones <marcj303@gmail.com>
2011-07-21 15:43:14 +02:00
{
unsigned char properties[LZMA_PROPERTIES_SIZE];
UInt32 outSize;
SizeT inProcessed;
SizeT outProcessed;
int res;
CLzmaDecoderState state;
SizeT mallocneeds;
unsigned char scratchpad[15980];
memcpy(properties, src, LZMA_PROPERTIES_SIZE);
libpayload: Don't do unaligned accesses during LZMA decompression Use memcpy to access a uint32_t that's inherently unaligned due to the layout of the LZMA header format. Built and booted on Daisy and saw a data abort go away. Built and booted into developer mode on Link and verified that bitmaps were decompressed/displayed correctly. Change-Id: Id3ae746c04d23bcb0345cb71797bfa219479cc8f Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: http://review.coreboot.org/2670 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-03-06 13:46:00 +01:00
memcpy(&outSize, src + LZMA_PROPERTIES_SIZE, sizeof(outSize));
libpayload: Add liblzma, libcbfs Add cbfs core from coreboot into libpayload, and to support lzma decode, add coreboot's lzma code, too. Carl-Daniel agreed to relicense the lzmadecode wrapper as BSD-l, solving licensing problems. Change-Id: Id28990fe7e951d99447e265a4880d70a8f208dd2 Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/115 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Marc Jones <marcj303@gmail.com>
2011-07-21 15:43:14 +02:00
if (LzmaDecodeProperties(&state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK) {
printf("lzma: Incorrect stream properties.\n");
return 0;
}
mallocneeds = (LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
if (mallocneeds > 15980) {
printf("lzma: Decoder scratchpad too small!\n");
return 0;
}
state.Probs = (CProb *)scratchpad;
res = LzmaDecode(&state, src + LZMA_PROPERTIES_SIZE + 8, (SizeT)0xffffffff, &inProcessed,
dst, outSize, &outProcessed);
if (res != 0) {
printf("lzma: Decoding error = %d\n", res);
return 0;
}
return outSize;
}