mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-08-19 23:57:08 +03:00
add ar7 lzma loader
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@1557 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
parent
72936728ab
commit
3bc2cd012d
@ -5,13 +5,14 @@ KDIR:=$(BUILD_DIR)/linux-$(KERNEL)-ar7
|
||||
PKG_BUILD_DIR:=$(BUILD_DIR)/ar7loader
|
||||
|
||||
LOADADDR := 0x94020000
|
||||
KERNEL_ENTRY := 0x${shell nm $(KDIR)/linux-$(KERNEL)*/vmlinux | grep kernel_entry | cut -d' ' -f1}
|
||||
OUTPUT_FORMAT := elf32-tradlittlemips
|
||||
|
||||
CFLAGS := -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
|
||||
-fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic \
|
||||
-pipe -mlong-calls -fno-common \
|
||||
-mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap \
|
||||
|
||||
-DLOADADDR=$(LOADADDR)
|
||||
|
||||
$(PKG_BUILD_DIR):
|
||||
mkdir -p $(PKG_BUILD_DIR)
|
||||
@ -24,6 +25,9 @@ $(PKG_BUILD_DIR)/ld.script: src/ld.script.in
|
||||
sed -e 's/@@OUTPUT_FORMAT@@/$(OUTPUT_FORMAT)/' \
|
||||
-e 's/@@LOADADDR@@/$(LOADADDR)/' <$< >$@
|
||||
|
||||
$(PKG_BUILD_DIR)/LzmaDecode.o: src/LzmaDecode.c
|
||||
$(TARGET_CC) $(CFLAGS) -c -o $@ $<
|
||||
|
||||
$(PKG_BUILD_DIR)/loader.o: src/loader.c
|
||||
$(TARGET_CC) $(CFLAGS) -c -o $@ $<
|
||||
|
||||
@ -33,10 +37,14 @@ $(PKG_BUILD_DIR)/srec2bin: src/srec2bin.c
|
||||
$(KDIR)/vmlinux.gz: $(KDIR)/vmlinux
|
||||
gzip -c -vf9 < $< > $@
|
||||
|
||||
$(BIN_DIR)/openwrt-ar7-zimage.bin: $(KDIR)/vmlinux.gz compile
|
||||
$(KDIR)/vmlinux.lzma: $(KDIR)/vmlinux
|
||||
cat $^ | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $@ || (rm -f $@ && false)
|
||||
|
||||
$(BIN_DIR)/openwrt-ar7-zimage.bin: $(KDIR)/vmlinux.lzma compile
|
||||
$(TARGET_CROSS)ld -T $(PKG_BUILD_DIR)/zimage.script -r -b binary $< -o $(KDIR)/zimage.o
|
||||
$(TARGET_CROSS)ld -static -G 0 -no-warn-mismatch -R $(KDIR)/linux-$(KERNEL)*/vmlinux -T $(PKG_BUILD_DIR)/ld.script \
|
||||
$(TARGET_CROSS)ld -static -G 0 --defsym kernel_entry=$(KERNEL_ENTRY) -T $(PKG_BUILD_DIR)/ld.script \
|
||||
$(PKG_BUILD_DIR)/loader.o \
|
||||
$(PKG_BUILD_DIR)/LzmaDecode.o \
|
||||
$(KDIR)/zimage.o \
|
||||
-o $(KDIR)/loader
|
||||
$(TARGET_CROSS)objcopy -O srec $(KDIR)/loader $(KDIR)/ram_zimage.sre
|
||||
@ -49,8 +57,8 @@ ifeq ($(FS),jffs2-4MB)
|
||||
ALIGN:=bs=65536 conv=sync
|
||||
endif
|
||||
|
||||
$(BIN_DIR)/openwrt-ar7-$(KERNEL)-$(FS).bin:
|
||||
dd if=$(BIN_DIR)/openwrt-ar7-zimage.bin $(ALIGN) > $@
|
||||
$(BIN_DIR)/openwrt-ar7-$(KERNEL)-$(FS).bin: $(BIN_DIR)/openwrt-ar7-zimage.bin
|
||||
dd if=$< $(ALIGN) > $@
|
||||
cat $(BUILD_DIR)/linux-$(KERNEL)-ar7/root.$(FS) >> $@
|
||||
|
||||
define pattern_template
|
||||
@ -70,6 +78,6 @@ clean:
|
||||
rm -f $(BIN_DIR)/openwrt-ar7*
|
||||
|
||||
prepare: $(PKG_BUILD_DIR) $(PKG_BUILD_DIR)/zimage.script $(PKG_BUILD_DIR)/ld.script
|
||||
compile: prepare $(PKG_BUILD_DIR)/loader.o $(PKG_BUILD_DIR)/srec2bin
|
||||
compile: prepare $(PKG_BUILD_DIR)/loader.o $(PKG_BUILD_DIR)/LzmaDecode.o $(PKG_BUILD_DIR)/srec2bin
|
||||
install: $(BIN_DIR)/openwrt-ar7-zimage.bin $(BIN_DIR)/openwrt-ar7-$(KERNEL)-$(FS).bin
|
||||
|
||||
|
||||
|
663
target/linux/image/ar7/src/LzmaDecode.c
Normal file
663
target/linux/image/ar7/src/LzmaDecode.c
Normal file
@ -0,0 +1,663 @@
|
||||
/*
|
||||
LzmaDecode.c
|
||||
LZMA Decoder
|
||||
|
||||
LZMA SDK 4.05 Copyright (c) 1999-2004 Igor Pavlov (2004-08-25)
|
||||
http://www.7-zip.org/
|
||||
|
||||
LZMA SDK is licensed under two licenses:
|
||||
1) GNU Lesser General Public License (GNU LGPL)
|
||||
2) Common Public License (CPL)
|
||||
It means that you can select one of these two licenses and
|
||||
follow rules of that license.
|
||||
|
||||
SPECIAL EXCEPTION:
|
||||
Igor Pavlov, as the author of this code, expressly permits you to
|
||||
statically or dynamically link your code (or bind by name) to the
|
||||
interfaces of this file without subjecting your linked code to the
|
||||
terms of the CPL or GNU LGPL. Any modifications or additions
|
||||
to this file, however, are subject to the LGPL or CPL terms.
|
||||
*/
|
||||
|
||||
#include "LzmaDecode.h"
|
||||
|
||||
#ifndef Byte
|
||||
#define Byte unsigned char
|
||||
#endif
|
||||
|
||||
#define kNumTopBits 24
|
||||
#define kTopValue ((UInt32)1 << kNumTopBits)
|
||||
|
||||
#define kNumBitModelTotalBits 11
|
||||
#define kBitModelTotal (1 << kNumBitModelTotalBits)
|
||||
#define kNumMoveBits 5
|
||||
|
||||
typedef struct _CRangeDecoder
|
||||
{
|
||||
Byte *Buffer;
|
||||
Byte *BufferLim;
|
||||
UInt32 Range;
|
||||
UInt32 Code;
|
||||
#ifdef _LZMA_IN_CB
|
||||
ILzmaInCallback *InCallback;
|
||||
int Result;
|
||||
#endif
|
||||
int ExtraBytes;
|
||||
} CRangeDecoder;
|
||||
|
||||
Byte RangeDecoderReadByte(CRangeDecoder *rd)
|
||||
{
|
||||
if (rd->Buffer == rd->BufferLim)
|
||||
{
|
||||
#ifdef _LZMA_IN_CB
|
||||
UInt32 size;
|
||||
rd->Result = rd->InCallback->Read(rd->InCallback, &rd->Buffer, &size);
|
||||
rd->BufferLim = rd->Buffer + size;
|
||||
if (size == 0)
|
||||
#endif
|
||||
{
|
||||
rd->ExtraBytes = 1;
|
||||
return 0xFF;
|
||||
}
|
||||
}
|
||||
return (*rd->Buffer++);
|
||||
}
|
||||
|
||||
/* #define ReadByte (*rd->Buffer++) */
|
||||
#define ReadByte (RangeDecoderReadByte(rd))
|
||||
|
||||
void RangeDecoderInit(CRangeDecoder *rd,
|
||||
#ifdef _LZMA_IN_CB
|
||||
ILzmaInCallback *inCallback
|
||||
#else
|
||||
Byte *stream, UInt32 bufferSize
|
||||
#endif
|
||||
)
|
||||
{
|
||||
int i;
|
||||
#ifdef _LZMA_IN_CB
|
||||
rd->InCallback = inCallback;
|
||||
rd->Buffer = rd->BufferLim = 0;
|
||||
#else
|
||||
rd->Buffer = stream;
|
||||
rd->BufferLim = stream + bufferSize;
|
||||
#endif
|
||||
rd->ExtraBytes = 0;
|
||||
rd->Code = 0;
|
||||
rd->Range = (0xFFFFFFFF);
|
||||
for(i = 0; i < 5; i++)
|
||||
rd->Code = (rd->Code << 8) | ReadByte;
|
||||
}
|
||||
|
||||
#define RC_INIT_VAR UInt32 range = rd->Range; UInt32 code = rd->Code;
|
||||
#define RC_FLUSH_VAR rd->Range = range; rd->Code = code;
|
||||
#define RC_NORMALIZE if (range < kTopValue) { range <<= 8; code = (code << 8) | ReadByte; }
|
||||
|
||||
UInt32 RangeDecoderDecodeDirectBits(CRangeDecoder *rd, int numTotalBits)
|
||||
{
|
||||
RC_INIT_VAR
|
||||
UInt32 result = 0;
|
||||
int i;
|
||||
for (i = numTotalBits; i > 0; i--)
|
||||
{
|
||||
/* UInt32 t; */
|
||||
range >>= 1;
|
||||
|
||||
result <<= 1;
|
||||
if (code >= range)
|
||||
{
|
||||
code -= range;
|
||||
result |= 1;
|
||||
}
|
||||
/*
|
||||
t = (code - range) >> 31;
|
||||
t &= 1;
|
||||
code -= range & (t - 1);
|
||||
result = (result + result) | (1 - t);
|
||||
*/
|
||||
RC_NORMALIZE
|
||||
}
|
||||
RC_FLUSH_VAR
|
||||
return result;
|
||||
}
|
||||
|
||||
int RangeDecoderBitDecode(CProb *prob, CRangeDecoder *rd)
|
||||
{
|
||||
UInt32 bound = (rd->Range >> kNumBitModelTotalBits) * *prob;
|
||||
if (rd->Code < bound)
|
||||
{
|
||||
rd->Range = bound;
|
||||
*prob += (kBitModelTotal - *prob) >> kNumMoveBits;
|
||||
if (rd->Range < kTopValue)
|
||||
{
|
||||
rd->Code = (rd->Code << 8) | ReadByte;
|
||||
rd->Range <<= 8;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
rd->Range -= bound;
|
||||
rd->Code -= bound;
|
||||
*prob -= (*prob) >> kNumMoveBits;
|
||||
if (rd->Range < kTopValue)
|
||||
{
|
||||
rd->Code = (rd->Code << 8) | ReadByte;
|
||||
rd->Range <<= 8;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
#define RC_GET_BIT2(prob, mi, A0, A1) \
|
||||
UInt32 bound = (range >> kNumBitModelTotalBits) * *prob; \
|
||||
if (code < bound) \
|
||||
{ A0; range = bound; *prob += (kBitModelTotal - *prob) >> kNumMoveBits; mi <<= 1; } \
|
||||
else \
|
||||
{ A1; range -= bound; code -= bound; *prob -= (*prob) >> kNumMoveBits; mi = (mi + mi) + 1; } \
|
||||
RC_NORMALIZE
|
||||
|
||||
#define RC_GET_BIT(prob, mi) RC_GET_BIT2(prob, mi, ; , ;)
|
||||
|
||||
int RangeDecoderBitTreeDecode(CProb *probs, int numLevels, CRangeDecoder *rd)
|
||||
{
|
||||
int mi = 1;
|
||||
int i;
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_INIT_VAR
|
||||
#endif
|
||||
for(i = numLevels; i > 0; i--)
|
||||
{
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
CProb *prob = probs + mi;
|
||||
RC_GET_BIT(prob, mi)
|
||||
#else
|
||||
mi = (mi + mi) + RangeDecoderBitDecode(probs + mi, rd);
|
||||
#endif
|
||||
}
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_FLUSH_VAR
|
||||
#endif
|
||||
return mi - (1 << numLevels);
|
||||
}
|
||||
|
||||
int RangeDecoderReverseBitTreeDecode(CProb *probs, int numLevels, CRangeDecoder *rd)
|
||||
{
|
||||
int mi = 1;
|
||||
int i;
|
||||
int symbol = 0;
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_INIT_VAR
|
||||
#endif
|
||||
for(i = 0; i < numLevels; i++)
|
||||
{
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
CProb *prob = probs + mi;
|
||||
RC_GET_BIT2(prob, mi, ; , symbol |= (1 << i))
|
||||
#else
|
||||
int bit = RangeDecoderBitDecode(probs + mi, rd);
|
||||
mi = mi + mi + bit;
|
||||
symbol |= (bit << i);
|
||||
#endif
|
||||
}
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_FLUSH_VAR
|
||||
#endif
|
||||
return symbol;
|
||||
}
|
||||
|
||||
Byte LzmaLiteralDecode(CProb *probs, CRangeDecoder *rd)
|
||||
{
|
||||
int symbol = 1;
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_INIT_VAR
|
||||
#endif
|
||||
do
|
||||
{
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
CProb *prob = probs + symbol;
|
||||
RC_GET_BIT(prob, symbol)
|
||||
#else
|
||||
symbol = (symbol + symbol) | RangeDecoderBitDecode(probs + symbol, rd);
|
||||
#endif
|
||||
}
|
||||
while (symbol < 0x100);
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_FLUSH_VAR
|
||||
#endif
|
||||
return symbol;
|
||||
}
|
||||
|
||||
Byte LzmaLiteralDecodeMatch(CProb *probs, CRangeDecoder *rd, Byte matchByte)
|
||||
{
|
||||
int symbol = 1;
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_INIT_VAR
|
||||
#endif
|
||||
do
|
||||
{
|
||||
int bit;
|
||||
int matchBit = (matchByte >> 7) & 1;
|
||||
matchByte <<= 1;
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
{
|
||||
CProb *prob = probs + ((1 + matchBit) << 8) + symbol;
|
||||
RC_GET_BIT2(prob, symbol, bit = 0, bit = 1)
|
||||
}
|
||||
#else
|
||||
bit = RangeDecoderBitDecode(probs + ((1 + matchBit) << 8) + symbol, rd);
|
||||
symbol = (symbol << 1) | bit;
|
||||
#endif
|
||||
if (matchBit != bit)
|
||||
{
|
||||
while (symbol < 0x100)
|
||||
{
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
CProb *prob = probs + symbol;
|
||||
RC_GET_BIT(prob, symbol)
|
||||
#else
|
||||
symbol = (symbol + symbol) | RangeDecoderBitDecode(probs + symbol, rd);
|
||||
#endif
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
while (symbol < 0x100);
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_FLUSH_VAR
|
||||
#endif
|
||||
return symbol;
|
||||
}
|
||||
|
||||
#define kNumPosBitsMax 4
|
||||
#define kNumPosStatesMax (1 << kNumPosBitsMax)
|
||||
|
||||
#define kLenNumLowBits 3
|
||||
#define kLenNumLowSymbols (1 << kLenNumLowBits)
|
||||
#define kLenNumMidBits 3
|
||||
#define kLenNumMidSymbols (1 << kLenNumMidBits)
|
||||
#define kLenNumHighBits 8
|
||||
#define kLenNumHighSymbols (1 << kLenNumHighBits)
|
||||
|
||||
#define LenChoice 0
|
||||
#define LenChoice2 (LenChoice + 1)
|
||||
#define LenLow (LenChoice2 + 1)
|
||||
#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))
|
||||
#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))
|
||||
#define kNumLenProbs (LenHigh + kLenNumHighSymbols)
|
||||
|
||||
int LzmaLenDecode(CProb *p, CRangeDecoder *rd, int posState)
|
||||
{
|
||||
if(RangeDecoderBitDecode(p + LenChoice, rd) == 0)
|
||||
return RangeDecoderBitTreeDecode(p + LenLow +
|
||||
(posState << kLenNumLowBits), kLenNumLowBits, rd);
|
||||
if(RangeDecoderBitDecode(p + LenChoice2, rd) == 0)
|
||||
return kLenNumLowSymbols + RangeDecoderBitTreeDecode(p + LenMid +
|
||||
(posState << kLenNumMidBits), kLenNumMidBits, rd);
|
||||
return kLenNumLowSymbols + kLenNumMidSymbols +
|
||||
RangeDecoderBitTreeDecode(p + LenHigh, kLenNumHighBits, rd);
|
||||
}
|
||||
|
||||
#define kNumStates 12
|
||||
|
||||
#define kStartPosModelIndex 4
|
||||
#define kEndPosModelIndex 14
|
||||
#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
|
||||
|
||||
#define kNumPosSlotBits 6
|
||||
#define kNumLenToPosStates 4
|
||||
|
||||
#define kNumAlignBits 4
|
||||
#define kAlignTableSize (1 << kNumAlignBits)
|
||||
|
||||
#define kMatchMinLen 2
|
||||
|
||||
#define IsMatch 0
|
||||
#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))
|
||||
#define IsRepG0 (IsRep + kNumStates)
|
||||
#define IsRepG1 (IsRepG0 + kNumStates)
|
||||
#define IsRepG2 (IsRepG1 + kNumStates)
|
||||
#define IsRep0Long (IsRepG2 + kNumStates)
|
||||
#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))
|
||||
#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))
|
||||
#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)
|
||||
#define LenCoder (Align + kAlignTableSize)
|
||||
#define RepLenCoder (LenCoder + kNumLenProbs)
|
||||
#define Literal (RepLenCoder + kNumLenProbs)
|
||||
|
||||
#if Literal != LZMA_BASE_SIZE
|
||||
StopCompilingDueBUG
|
||||
#endif
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
|
||||
typedef struct _LzmaVarState
|
||||
{
|
||||
CRangeDecoder RangeDecoder;
|
||||
Byte *Dictionary;
|
||||
UInt32 DictionarySize;
|
||||
UInt32 DictionaryPos;
|
||||
UInt32 GlobalPos;
|
||||
UInt32 Reps[4];
|
||||
int lc;
|
||||
int lp;
|
||||
int pb;
|
||||
int State;
|
||||
int PreviousIsMatch;
|
||||
int RemainLen;
|
||||
} LzmaVarState;
|
||||
|
||||
int LzmaDecoderInit(
|
||||
unsigned char *buffer, UInt32 bufferSize,
|
||||
int lc, int lp, int pb,
|
||||
unsigned char *dictionary, UInt32 dictionarySize,
|
||||
#ifdef _LZMA_IN_CB
|
||||
ILzmaInCallback *inCallback
|
||||
#else
|
||||
unsigned char *inStream, UInt32 inSize
|
||||
#endif
|
||||
)
|
||||
{
|
||||
LzmaVarState *vs = (LzmaVarState *)buffer;
|
||||
CProb *p = (CProb *)(buffer + sizeof(LzmaVarState));
|
||||
UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + lp));
|
||||
UInt32 i;
|
||||
if (bufferSize < numProbs * sizeof(CProb) + sizeof(LzmaVarState))
|
||||
return LZMA_RESULT_NOT_ENOUGH_MEM;
|
||||
vs->Dictionary = dictionary;
|
||||
vs->DictionarySize = dictionarySize;
|
||||
vs->DictionaryPos = 0;
|
||||
vs->GlobalPos = 0;
|
||||
vs->Reps[0] = vs->Reps[1] = vs->Reps[2] = vs->Reps[3] = 1;
|
||||
vs->lc = lc;
|
||||
vs->lp = lp;
|
||||
vs->pb = pb;
|
||||
vs->State = 0;
|
||||
vs->PreviousIsMatch = 0;
|
||||
vs->RemainLen = 0;
|
||||
dictionary[dictionarySize - 1] = 0;
|
||||
for (i = 0; i < numProbs; i++)
|
||||
p[i] = kBitModelTotal >> 1;
|
||||
RangeDecoderInit(&vs->RangeDecoder,
|
||||
#ifdef _LZMA_IN_CB
|
||||
inCallback
|
||||
#else
|
||||
inStream, inSize
|
||||
#endif
|
||||
);
|
||||
return LZMA_RESULT_OK;
|
||||
}
|
||||
|
||||
int LzmaDecode(unsigned char *buffer,
|
||||
unsigned char *outStream, UInt32 outSize,
|
||||
UInt32 *outSizeProcessed)
|
||||
{
|
||||
LzmaVarState *vs = (LzmaVarState *)buffer;
|
||||
CProb *p = (CProb *)(buffer + sizeof(LzmaVarState));
|
||||
CRangeDecoder rd = vs->RangeDecoder;
|
||||
int state = vs->State;
|
||||
int previousIsMatch = vs->PreviousIsMatch;
|
||||
Byte previousByte;
|
||||
UInt32 rep0 = vs->Reps[0], rep1 = vs->Reps[1], rep2 = vs->Reps[2], rep3 = vs->Reps[3];
|
||||
UInt32 nowPos = 0;
|
||||
UInt32 posStateMask = (1 << (vs->pb)) - 1;
|
||||
UInt32 literalPosMask = (1 << (vs->lp)) - 1;
|
||||
int lc = vs->lc;
|
||||
int len = vs->RemainLen;
|
||||
UInt32 globalPos = vs->GlobalPos;
|
||||
|
||||
Byte *dictionary = vs->Dictionary;
|
||||
UInt32 dictionarySize = vs->DictionarySize;
|
||||
UInt32 dictionaryPos = vs->DictionaryPos;
|
||||
|
||||
if (len == -1)
|
||||
{
|
||||
*outSizeProcessed = 0;
|
||||
return LZMA_RESULT_OK;
|
||||
}
|
||||
|
||||
while(len > 0 && nowPos < outSize)
|
||||
{
|
||||
UInt32 pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
outStream[nowPos++] = dictionary[dictionaryPos] = dictionary[pos];
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
len--;
|
||||
}
|
||||
if (dictionaryPos == 0)
|
||||
previousByte = dictionary[dictionarySize - 1];
|
||||
else
|
||||
previousByte = dictionary[dictionaryPos - 1];
|
||||
#else
|
||||
|
||||
int LzmaDecode(
|
||||
Byte *buffer, UInt32 bufferSize,
|
||||
int lc, int lp, int pb,
|
||||
#ifdef _LZMA_IN_CB
|
||||
ILzmaInCallback *inCallback,
|
||||
#else
|
||||
unsigned char *inStream, UInt32 inSize,
|
||||
#endif
|
||||
unsigned char *outStream, UInt32 outSize,
|
||||
UInt32 *outSizeProcessed)
|
||||
{
|
||||
UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + lp));
|
||||
CProb *p = (CProb *)buffer;
|
||||
CRangeDecoder rd;
|
||||
UInt32 i;
|
||||
int state = 0;
|
||||
int previousIsMatch = 0;
|
||||
Byte previousByte = 0;
|
||||
UInt32 rep0 = 1, rep1 = 1, rep2 = 1, rep3 = 1;
|
||||
UInt32 nowPos = 0;
|
||||
UInt32 posStateMask = (1 << pb) - 1;
|
||||
UInt32 literalPosMask = (1 << lp) - 1;
|
||||
int len = 0;
|
||||
if (bufferSize < numProbs * sizeof(CProb))
|
||||
return LZMA_RESULT_NOT_ENOUGH_MEM;
|
||||
for (i = 0; i < numProbs; i++)
|
||||
p[i] = kBitModelTotal >> 1;
|
||||
RangeDecoderInit(&rd,
|
||||
#ifdef _LZMA_IN_CB
|
||||
inCallback
|
||||
#else
|
||||
inStream, inSize
|
||||
#endif
|
||||
);
|
||||
#endif
|
||||
|
||||
*outSizeProcessed = 0;
|
||||
while(nowPos < outSize)
|
||||
{
|
||||
int posState = (int)(
|
||||
(nowPos
|
||||
#ifdef _LZMA_OUT_READ
|
||||
+ globalPos
|
||||
#endif
|
||||
)
|
||||
& posStateMask);
|
||||
#ifdef _LZMA_IN_CB
|
||||
if (rd.Result != LZMA_RESULT_OK)
|
||||
return rd.Result;
|
||||
#endif
|
||||
if (rd.ExtraBytes != 0)
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
if (RangeDecoderBitDecode(p + IsMatch + (state << kNumPosBitsMax) + posState, &rd) == 0)
|
||||
{
|
||||
CProb *probs = p + Literal + (LZMA_LIT_SIZE *
|
||||
(((
|
||||
(nowPos
|
||||
#ifdef _LZMA_OUT_READ
|
||||
+ globalPos
|
||||
#endif
|
||||
)
|
||||
& literalPosMask) << lc) + (previousByte >> (8 - lc))));
|
||||
|
||||
if (state < 4) state = 0;
|
||||
else if (state < 10) state -= 3;
|
||||
else state -= 6;
|
||||
if (previousIsMatch)
|
||||
{
|
||||
Byte matchByte;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
UInt32 pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
matchByte = dictionary[pos];
|
||||
#else
|
||||
matchByte = outStream[nowPos - rep0];
|
||||
#endif
|
||||
previousByte = LzmaLiteralDecodeMatch(probs, &rd, matchByte);
|
||||
previousIsMatch = 0;
|
||||
}
|
||||
else
|
||||
previousByte = LzmaLiteralDecode(probs, &rd);
|
||||
outStream[nowPos++] = previousByte;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
dictionary[dictionaryPos] = previousByte;
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
#endif
|
||||
}
|
||||
else
|
||||
{
|
||||
previousIsMatch = 1;
|
||||
if (RangeDecoderBitDecode(p + IsRep + state, &rd) == 1)
|
||||
{
|
||||
if (RangeDecoderBitDecode(p + IsRepG0 + state, &rd) == 0)
|
||||
{
|
||||
if (RangeDecoderBitDecode(p + IsRep0Long + (state << kNumPosBitsMax) + posState, &rd) == 0)
|
||||
{
|
||||
#ifdef _LZMA_OUT_READ
|
||||
UInt32 pos;
|
||||
#endif
|
||||
if (
|
||||
(nowPos
|
||||
#ifdef _LZMA_OUT_READ
|
||||
+ globalPos
|
||||
#endif
|
||||
)
|
||||
== 0)
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
state = state < 7 ? 9 : 11;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
previousByte = dictionary[pos];
|
||||
dictionary[dictionaryPos] = previousByte;
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
#else
|
||||
previousByte = outStream[nowPos - rep0];
|
||||
#endif
|
||||
outStream[nowPos++] = previousByte;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
UInt32 distance;
|
||||
if(RangeDecoderBitDecode(p + IsRepG1 + state, &rd) == 0)
|
||||
distance = rep1;
|
||||
else
|
||||
{
|
||||
if(RangeDecoderBitDecode(p + IsRepG2 + state, &rd) == 0)
|
||||
distance = rep2;
|
||||
else
|
||||
{
|
||||
distance = rep3;
|
||||
rep3 = rep2;
|
||||
}
|
||||
rep2 = rep1;
|
||||
}
|
||||
rep1 = rep0;
|
||||
rep0 = distance;
|
||||
}
|
||||
len = LzmaLenDecode(p + RepLenCoder, &rd, posState);
|
||||
state = state < 7 ? 8 : 11;
|
||||
}
|
||||
else
|
||||
{
|
||||
int posSlot;
|
||||
rep3 = rep2;
|
||||
rep2 = rep1;
|
||||
rep1 = rep0;
|
||||
state = state < 7 ? 7 : 10;
|
||||
len = LzmaLenDecode(p + LenCoder, &rd, posState);
|
||||
posSlot = RangeDecoderBitTreeDecode(p + PosSlot +
|
||||
((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) <<
|
||||
kNumPosSlotBits), kNumPosSlotBits, &rd);
|
||||
if (posSlot >= kStartPosModelIndex)
|
||||
{
|
||||
int numDirectBits = ((posSlot >> 1) - 1);
|
||||
rep0 = ((2 | ((UInt32)posSlot & 1)) << numDirectBits);
|
||||
if (posSlot < kEndPosModelIndex)
|
||||
{
|
||||
rep0 += RangeDecoderReverseBitTreeDecode(
|
||||
p + SpecPos + rep0 - posSlot - 1, numDirectBits, &rd);
|
||||
}
|
||||
else
|
||||
{
|
||||
rep0 += RangeDecoderDecodeDirectBits(&rd,
|
||||
numDirectBits - kNumAlignBits) << kNumAlignBits;
|
||||
rep0 += RangeDecoderReverseBitTreeDecode(p + Align, kNumAlignBits, &rd);
|
||||
}
|
||||
}
|
||||
else
|
||||
rep0 = posSlot;
|
||||
rep0++;
|
||||
}
|
||||
if (rep0 == (UInt32)(0))
|
||||
{
|
||||
/* it's for stream version */
|
||||
len = -1;
|
||||
break;
|
||||
}
|
||||
if (rep0 > nowPos
|
||||
#ifdef _LZMA_OUT_READ
|
||||
+ globalPos
|
||||
#endif
|
||||
)
|
||||
{
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
}
|
||||
len += kMatchMinLen;
|
||||
do
|
||||
{
|
||||
#ifdef _LZMA_OUT_READ
|
||||
UInt32 pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
previousByte = dictionary[pos];
|
||||
dictionary[dictionaryPos] = previousByte;
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
#else
|
||||
previousByte = outStream[nowPos - rep0];
|
||||
#endif
|
||||
outStream[nowPos++] = previousByte;
|
||||
len--;
|
||||
}
|
||||
while(len > 0 && nowPos < outSize);
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
vs->RangeDecoder = rd;
|
||||
vs->DictionaryPos = dictionaryPos;
|
||||
vs->GlobalPos = globalPos + nowPos;
|
||||
vs->Reps[0] = rep0;
|
||||
vs->Reps[1] = rep1;
|
||||
vs->Reps[2] = rep2;
|
||||
vs->Reps[3] = rep3;
|
||||
vs->State = state;
|
||||
vs->PreviousIsMatch = previousIsMatch;
|
||||
vs->RemainLen = len;
|
||||
#endif
|
||||
|
||||
*outSizeProcessed = nowPos;
|
||||
return LZMA_RESULT_OK;
|
||||
}
|
100
target/linux/image/ar7/src/LzmaDecode.h
Normal file
100
target/linux/image/ar7/src/LzmaDecode.h
Normal file
@ -0,0 +1,100 @@
|
||||
/*
|
||||
LzmaDecode.h
|
||||
LZMA Decoder interface
|
||||
|
||||
LZMA SDK 4.05 Copyright (c) 1999-2004 Igor Pavlov (2004-08-25)
|
||||
http://www.7-zip.org/
|
||||
|
||||
LZMA SDK is licensed under two licenses:
|
||||
1) GNU Lesser General Public License (GNU LGPL)
|
||||
2) Common Public License (CPL)
|
||||
It means that you can select one of these two licenses and
|
||||
follow rules of that license.
|
||||
|
||||
SPECIAL EXCEPTION:
|
||||
Igor Pavlov, as the author of this code, expressly permits you to
|
||||
statically or dynamically link your code (or bind by name) to the
|
||||
interfaces of this file without subjecting your linked code to the
|
||||
terms of the CPL or GNU LGPL. Any modifications or additions
|
||||
to this file, however, are subject to the LGPL or CPL terms.
|
||||
*/
|
||||
|
||||
#ifndef __LZMADECODE_H
|
||||
#define __LZMADECODE_H
|
||||
|
||||
/* #define _LZMA_IN_CB */
|
||||
/* Use callback for input data */
|
||||
|
||||
/* #define _LZMA_OUT_READ */
|
||||
/* Use read function for output data */
|
||||
|
||||
/* #define _LZMA_PROB32 */
|
||||
/* It can increase speed on some 32-bit CPUs,
|
||||
but memory usage will be doubled in that case */
|
||||
|
||||
/* #define _LZMA_LOC_OPT */
|
||||
/* Enable local speed optimizations inside code */
|
||||
|
||||
#ifndef UInt32
|
||||
#ifdef _LZMA_UINT32_IS_ULONG
|
||||
#define UInt32 unsigned long
|
||||
#else
|
||||
#define UInt32 unsigned int
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef _LZMA_PROB32
|
||||
#define CProb UInt32
|
||||
#else
|
||||
#define CProb unsigned short
|
||||
#endif
|
||||
|
||||
#define LZMA_RESULT_OK 0
|
||||
#define LZMA_RESULT_DATA_ERROR 1
|
||||
#define LZMA_RESULT_NOT_ENOUGH_MEM 2
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
typedef struct _ILzmaInCallback
|
||||
{
|
||||
int (*Read)(void *object, unsigned char **buffer, UInt32 *bufferSize);
|
||||
} ILzmaInCallback;
|
||||
#endif
|
||||
|
||||
#define LZMA_BASE_SIZE 1846
|
||||
#define LZMA_LIT_SIZE 768
|
||||
|
||||
/*
|
||||
bufferSize = (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << (lc + lp)))* sizeof(CProb)
|
||||
bufferSize += 100 in case of _LZMA_OUT_READ
|
||||
by default CProb is unsigned short,
|
||||
but if specify _LZMA_PROB_32, CProb will be UInt32(unsigned int)
|
||||
*/
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
int LzmaDecoderInit(
|
||||
unsigned char *buffer, UInt32 bufferSize,
|
||||
int lc, int lp, int pb,
|
||||
unsigned char *dictionary, UInt32 dictionarySize,
|
||||
#ifdef _LZMA_IN_CB
|
||||
ILzmaInCallback *inCallback
|
||||
#else
|
||||
unsigned char *inStream, UInt32 inSize
|
||||
#endif
|
||||
);
|
||||
#endif
|
||||
|
||||
int LzmaDecode(
|
||||
unsigned char *buffer,
|
||||
#ifndef _LZMA_OUT_READ
|
||||
UInt32 bufferSize,
|
||||
int lc, int lp, int pb,
|
||||
#ifdef _LZMA_IN_CB
|
||||
ILzmaInCallback *inCallback,
|
||||
#else
|
||||
unsigned char *inStream, UInt32 inSize,
|
||||
#endif
|
||||
#endif
|
||||
unsigned char *outStream, UInt32 outSize,
|
||||
UInt32 *outSizeProcessed);
|
||||
|
||||
#endif
|
@ -5,15 +5,15 @@ ENTRY(tikernelunzip)
|
||||
{
|
||||
|
||||
/* Allocate memory space on top of kernel bss space */
|
||||
. = _fbss;
|
||||
. = 0x94200000;
|
||||
.text :
|
||||
{
|
||||
*(.text)
|
||||
*(.rodata)
|
||||
*(.rodata1)
|
||||
*(.gnu.warning)
|
||||
*(.text.init)
|
||||
*(.data.init)
|
||||
*(.rodata)
|
||||
*(.rodata1)
|
||||
*(.gnu.warning)
|
||||
*(.text.init)
|
||||
*(.data.init)
|
||||
}
|
||||
|
||||
.data :
|
||||
@ -21,21 +21,14 @@ ENTRY(tikernelunzip)
|
||||
*(*)
|
||||
}
|
||||
|
||||
bss :
|
||||
.bss :
|
||||
{
|
||||
inflate_bss_start = .;
|
||||
*(.dynbss)
|
||||
*(.bss)
|
||||
*(COMMON)
|
||||
*(.sbss)
|
||||
*(.scommon)
|
||||
inflate_bss_end = .;
|
||||
*(COMMON)
|
||||
*(.bss)
|
||||
*(.sbss)
|
||||
*(.scommon)
|
||||
. = ALIGN (0x8000);
|
||||
inflate_slide_window = .;
|
||||
. += 0x8000; /* slide window is 8000h */
|
||||
inflate_free_memory_start = .;
|
||||
workspace = .;
|
||||
}
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
File diff suppressed because it is too large
Load Diff
@ -6,6 +6,6 @@ OUTPUT_ARCH(mips)
|
||||
{
|
||||
kernelimage = .;
|
||||
*(.data)
|
||||
kernelimage_end = .;
|
||||
kernelimage_end = .;
|
||||
}
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user