diff options
author | Felix Fietkau <nbd@openwrt.org> | 2009-07-21 02:31:37 +0000 |
---|---|---|
committer | Felix Fietkau <nbd@openwrt.org> | 2009-07-21 02:31:37 +0000 |
commit | c6458418e5d8eeaad8f00c1371ead5429329cd4b (patch) | |
tree | 9b629ac0a987ed8ebf6d6cfef5388acc054130d4 /target/linux/generic-2.6/patches-2.6.28/960-arm_lzma_loader.patch | |
parent | e5f75edc00943c15d16013fe41345436946e8ed0 (diff) | |
download | master-187ad058-c6458418e5d8eeaad8f00c1371ead5429329cd4b.tar.gz master-187ad058-c6458418e5d8eeaad8f00c1371ead5429329cd4b.tar.bz2 master-187ad058-c6458418e5d8eeaad8f00c1371ead5429329cd4b.zip |
add a new arm lzma kernel decompressor based on rewritten (and much more readable) unlzma code. backport to 2.6.28 as well. tested on ixp4xx and orion
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16939 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.28/960-arm_lzma_loader.patch')
-rw-r--r-- | target/linux/generic-2.6/patches-2.6.28/960-arm_lzma_loader.patch | 719 |
1 files changed, 719 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.28/960-arm_lzma_loader.patch b/target/linux/generic-2.6/patches-2.6.28/960-arm_lzma_loader.patch new file mode 100644 index 0000000000..986c282713 --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.28/960-arm_lzma_loader.patch @@ -0,0 +1,719 @@ +--- a/arch/arm/boot/compressed/Makefile ++++ b/arch/arm/boot/compressed/Makefile +@@ -67,7 +67,7 @@ endif + + SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/ + +-targets := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \ ++targets := vmlinux vmlinux.lds piggy.lzma piggy.o font.o font.c \ + head.o misc.o $(OBJS) + + ifeq ($(CONFIG_FUNCTION_TRACER),y) +@@ -100,10 +100,10 @@ $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj + $(call if_changed,ld) + @: + +-$(obj)/piggy.gz: $(obj)/../Image FORCE +- $(call if_changed,gzip) ++$(obj)/piggy.lzma: $(obj)/../Image FORCE ++ $(call if_changed,lzma) + +-$(obj)/piggy.o: $(obj)/piggy.gz FORCE ++$(obj)/piggy.o: $(obj)/piggy.lzma FORCE + + CFLAGS_font.o := -Dstatic= + +--- a/arch/arm/boot/compressed/misc.c ++++ b/arch/arm/boot/compressed/misc.c +@@ -166,36 +166,10 @@ static inline __ptr_t memcpy(__ptr_t __d + return __dest; + } + +-/* +- * gzip delarations +- */ +-#define OF(args) args +-#define STATIC static +- +-typedef unsigned char uch; +-typedef unsigned short ush; +-typedef unsigned long ulg; +- +-#define WSIZE 0x8000 /* Window size must be at least 32k, */ ++#define WSIZE 0x20000 /* Window size must be at least 128k, */ + /* and a power of two */ + +-static uch *inbuf; /* input buffer */ +-static uch window[WSIZE]; /* Sliding window buffer */ +- +-static unsigned insize; /* valid bytes in inbuf */ +-static unsigned inptr; /* index of next byte to be processed in inbuf */ +-static unsigned outcnt; /* bytes in output buffer */ +- +-/* gzip flag byte */ +-#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */ +-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */ +-#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ +-#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ +-#define COMMENT 0x10 /* bit 4 set: file comment present */ +-#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */ +-#define RESERVED 0xC0 /* bit 6,7: reserved */ +- +-#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf()) ++static u8 window[WSIZE]; /* Sliding window buffer */ + + /* Diagnostic functions */ + #ifdef DEBUG +@@ -214,24 +188,21 @@ static unsigned outcnt; /* bytes in out + # define Tracecv(c,x) + #endif + +-static int fill_inbuf(void); +-static void flush_window(void); + static void error(char *m); + + extern char input_data[]; + extern char input_data_end[]; + +-static uch *output_data; +-static ulg output_ptr; +-static ulg bytes_out; ++static unsigned long output_ptr; ++static unsigned long bytes_out; + + static void error(char *m); + + static void putstr(const char *); + + extern int end; +-static ulg free_mem_ptr; +-static ulg free_mem_end_ptr; ++static unsigned long free_mem_ptr; ++static unsigned long free_mem_end_ptr; + + #ifdef STANDALONE_DEBUG + #define NO_INFLATE_MALLOC +@@ -239,50 +210,10 @@ static ulg free_mem_end_ptr; + + #define ARCH_HAS_DECOMP_WDOG + +-#include "../../../../lib/inflate.c" +- +-/* =========================================================================== +- * Fill the input buffer. This is called only when the buffer is empty +- * and at least one byte is really needed. +- */ +-int fill_inbuf(void) +-{ +- if (insize != 0) +- error("ran out of input data"); +- +- inbuf = input_data; +- insize = &input_data_end[0] - &input_data[0]; +- +- inptr = 1; +- return inbuf[0]; +-} +- +-/* =========================================================================== +- * Write the output window window[0..outcnt-1] and update crc and bytes_out. +- * (Used for the decompressed data only.) +- */ +-void flush_window(void) +-{ +- ulg c = crc; +- unsigned n; +- uch *in, *out, ch; +- +- in = window; +- out = &output_data[output_ptr]; +- for (n = 0; n < outcnt; n++) { +- ch = *out++ = *in++; +- c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8); +- } +- crc = c; +- bytes_out += (ulg)outcnt; +- output_ptr += (ulg)outcnt; +- outcnt = 0; +- putstr("."); +-} +- + #ifndef arch_error + #define arch_error(x) + #endif ++#include "unlzma.c" + + static void error(char *x) + { +@@ -297,20 +228,16 @@ static void error(char *x) + + #ifndef STANDALONE_DEBUG + +-ulg +-decompress_kernel(ulg output_start, ulg free_mem_ptr_p, ulg free_mem_ptr_end_p, ++unsigned long ++decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p, unsigned long free_mem_ptr_end_p, + int arch_id) + { +- output_data = (uch *)output_start; /* Points to kernel start */ +- free_mem_ptr = free_mem_ptr_p; +- free_mem_end_ptr = free_mem_ptr_end_p; + __machine_arch_type = arch_id; + + arch_decomp_setup(); + +- makecrc(); + putstr("Uncompressing Linux..."); +- gunzip(); ++ output_ptr += unlzma((u8 *) output_start, input_data, window); + putstr(" done, booting the kernel.\n"); + return output_ptr; + } +@@ -320,11 +247,8 @@ char output_buffer[1500*1024]; + + int main() + { +- output_data = output_buffer; +- +- makecrc(); + putstr("Uncompressing Linux..."); +- gunzip(); ++ unlzma((u8 *) output_buffer, input_data, window); + putstr("done.\n"); + return 0; + } +--- a/arch/arm/boot/compressed/piggy.S ++++ b/arch/arm/boot/compressed/piggy.S +@@ -1,6 +1,6 @@ + .section .piggydata,#alloc + .globl input_data + input_data: +- .incbin "arch/arm/boot/compressed/piggy.gz" ++ .incbin "arch/arm/boot/compressed/piggy.lzma" + .globl input_data_end + input_data_end: +--- /dev/null ++++ b/arch/arm/boot/compressed/unlzma.c +@@ -0,0 +1,429 @@ ++/* ++ * Copyright (c) 2009 Felix Fietkau <nbd@openwrt.org> ++ * ++ * 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; either version 2, ++ * or (at your option) any later version. ++ * ++ * 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ * ++ * uncompress.c ++ */ ++ ++#include <linux/types.h> ++#include <asm/byteorder.h> ++#include "unlzma.h" ++ ++struct unlzma_ctx { ++ const u8 *next_in; ++ u8 *next_out; ++ u8 *outbuf; ++ ++ /* reader state */ ++ u32 code; ++ u32 range; ++ u32 bound; ++ ++ /* writer state */ ++ u8 previous_byte; ++ ssize_t pos; ++ ++ /* cstate */ ++ int state; ++ u32 rep0, rep1, rep2, rep3; ++ ++ void *workspace; ++} ctx; ++ ++static int inbs = 0; ++static inline u8 ++rc_read(void) ++{ ++#if 0 ++ if (unlikely(++inbs > 16 * 1024)) { ++ putstr("."); ++ inbs = 0; ++ } ++#endif ++ return *(ctx.next_in++); ++} ++ ++ ++static inline void ++rc_get_code(void) ++{ ++ ctx.code = (ctx.code << 8) | rc_read(); ++} ++ ++static inline void ++rc_normalize(void) ++{ ++ if (ctx.range < (1 << RC_TOP_BITS)) { ++ ctx.range <<= 8; ++ rc_get_code(); ++ } ++} ++ ++static inline int ++rc_is_bit_0(u16 *p) ++{ ++ rc_normalize(); ++ ctx.bound = *p * (ctx.range >> RC_MODEL_TOTAL_BITS); ++ return ctx.code < ctx.bound; ++} ++ ++static inline void ++rc_update_bit_0(u16 *p) ++{ ++ ctx.range = ctx.bound; ++ *p += ((1 << RC_MODEL_TOTAL_BITS) - *p) >> RC_MOVE_BITS; ++} ++ ++static inline void ++rc_update_bit_1(u16 *p) ++{ ++ ctx.range -= ctx.bound; ++ ctx.code -= ctx.bound; ++ *p -= *p >> RC_MOVE_BITS; ++} ++ ++static inline bool ++rc_get_bit(u16 *p, int *symbol) ++{ ++ if (rc_is_bit_0(p)) { ++ rc_update_bit_0(p); ++ *symbol *= 2; ++ return 0; ++ } else { ++ rc_update_bit_1(p); ++ *symbol = *symbol * 2 + 1; ++ return 1; ++ } ++} ++ ++static inline int ++rc_direct_bit(void) ++{ ++ rc_normalize(); ++ ctx.range >>= 1; ++ if (ctx.code >= ctx.range) { ++ ctx.code -= ctx.range; ++ return 1; ++ } ++ return 0; ++} ++ ++static inline void ++rc_bit_tree_decode(u16 *p, int num_levels, int *symbol) ++{ ++ int i = num_levels; ++ ++ *symbol = 1; ++ while (i--) ++ rc_get_bit(p + *symbol, symbol); ++ *symbol -= 1 << num_levels; ++} ++ ++static inline u8 ++peek_old_byte(u32 offs) ++{ ++ u32 pos = ctx.pos - offs; ++ return ctx.outbuf[pos]; ++} ++ ++static inline void ++write_byte(u8 byte) ++{ ++ ctx.previous_byte = byte; ++ *(ctx.next_out++) = byte; ++ ctx.pos++; ++} ++ ++ ++static inline void ++copy_byte(u32 offs) ++{ ++ write_byte(peek_old_byte(offs)); ++} ++ ++static inline void ++copy_bytes(u32 rep0, int len) ++{ ++ do { ++ copy_byte(rep0); ++ len--; ++ } while (len != 0); ++} ++ ++static inline void ++process_bit0(u16 *p, int pos_state, u16 *prob, ++ int lc, u32 literal_pos_mask) ++{ ++ int mi = 1; ++ rc_update_bit_0(prob); ++ prob = (p + LZMA_LITERAL + ++ (LZMA_LIT_SIZE ++ * (((ctx.pos & literal_pos_mask) << lc) ++ + (ctx.previous_byte >> (8 - lc)))) ++ ); ++ ++ if (ctx.state >= LZMA_NUM_LIT_STATES) { ++ int match_byte = peek_old_byte(ctx.rep0); ++ do { ++ u16 bit; ++ u16 *prob_lit; ++ ++ match_byte <<= 1; ++ bit = match_byte & 0x100; ++ prob_lit = prob + 0x100 + bit + mi; ++ if (rc_get_bit(prob_lit, &mi) != !!bit) ++ break; ++ } while (mi < 0x100); ++ } ++ while (mi < 0x100) { ++ u16 *prob_lit = prob + mi; ++ rc_get_bit(prob_lit, &mi); ++ } ++ write_byte(mi); ++ if (ctx.state < 4) ++ ctx.state = 0; ++ else if (ctx.state < 10) ++ ctx.state -= 3; ++ else ++ ctx.state -= 6; ++} ++ ++static inline void ++process_bit1(u16 *p, int pos_state, u16 *prob) ++{ ++ int offset; ++ u16 *prob_len; ++ int num_bits; ++ int len; ++ ++ rc_update_bit_1(prob); ++ prob = p + LZMA_IS_REP + ctx.state; ++ if (rc_is_bit_0(prob)) { ++ rc_update_bit_0(prob); ++ ctx.rep3 = ctx.rep2; ++ ctx.rep2 = ctx.rep1; ++ ctx.rep1 = ctx.rep0; ++ ctx.state = ctx.state < LZMA_NUM_LIT_STATES ? 0 : 3; ++ prob = p + LZMA_LEN_CODER; ++ } else { ++ rc_update_bit_1(prob); ++ prob = p + LZMA_IS_REP_G0 + ctx.state; ++ if (rc_is_bit_0(prob)) { ++ rc_update_bit_0(prob); ++ prob = (p + LZMA_IS_REP_0_LONG ++ + (ctx.state << ++ LZMA_NUM_POS_BITS_MAX) + ++ pos_state); ++ if (rc_is_bit_0(prob)) { ++ rc_update_bit_0(prob); ++ ++ ctx.state = ctx.state < LZMA_NUM_LIT_STATES ? ++ 9 : 11; ++ copy_byte(ctx.rep0); ++ return; ++ } else { ++ rc_update_bit_1(prob); ++ } ++ } else { ++ u32 distance; ++ ++ rc_update_bit_1(prob); ++ prob = p + LZMA_IS_REP_G1 + ctx.state; ++ if (rc_is_bit_0(prob)) { ++ rc_update_bit_0(prob); ++ distance = ctx.rep1; ++ } else { ++ rc_update_bit_1(prob); ++ prob = p + LZMA_IS_REP_G2 + ctx.state; ++ if (rc_is_bit_0(prob)) { ++ rc_update_bit_0(prob); ++ distance = ctx.rep2; ++ } else { ++ rc_update_bit_1(prob); ++ distance = ctx.rep3; ++ ctx.rep3 = ctx.rep2; ++ } ++ ctx.rep2 = ctx.rep1; ++ } ++ ctx.rep1 = ctx.rep0; ++ ctx.rep0 = distance; ++ } ++ ctx.state = ctx.state < LZMA_NUM_LIT_STATES ? 8 : 11; ++ prob = p + LZMA_REP_LEN_CODER; ++ } ++ ++ prob_len = prob + LZMA_LEN_CHOICE; ++ if (rc_is_bit_0(prob_len)) { ++ rc_update_bit_0(prob_len); ++ prob_len = (prob + LZMA_LEN_LOW ++ + (pos_state << ++ LZMA_LEN_NUM_LOW_BITS)); ++ offset = 0; ++ num_bits = LZMA_LEN_NUM_LOW_BITS; ++ } else { ++ rc_update_bit_1(prob_len); ++ prob_len = prob + LZMA_LEN_CHOICE_2; ++ if (rc_is_bit_0(prob_len)) { ++ rc_update_bit_0(prob_len); ++ prob_len = (prob + LZMA_LEN_MID ++ + (pos_state << ++ LZMA_LEN_NUM_MID_BITS)); ++ offset = 1 << LZMA_LEN_NUM_LOW_BITS; ++ num_bits = LZMA_LEN_NUM_MID_BITS; ++ } else { ++ rc_update_bit_1(prob_len); ++ prob_len = prob + LZMA_LEN_HIGH; ++ offset = ((1 << LZMA_LEN_NUM_LOW_BITS) ++ + (1 << LZMA_LEN_NUM_MID_BITS)); ++ num_bits = LZMA_LEN_NUM_HIGH_BITS; ++ } ++ } ++ ++ rc_bit_tree_decode(prob_len, num_bits, &len); ++ len += offset; ++ ++ if (ctx.state < 4) { ++ int pos_slot; ++ ++ ctx.state += LZMA_NUM_LIT_STATES; ++ prob = ++ p + LZMA_POS_SLOT + ++ ((len < ++ LZMA_NUM_LEN_TO_POS_STATES ? len : ++ LZMA_NUM_LEN_TO_POS_STATES - 1) ++ << LZMA_NUM_POS_SLOT_BITS); ++ rc_bit_tree_decode(prob, ++ LZMA_NUM_POS_SLOT_BITS, ++ &pos_slot); ++ if (pos_slot >= LZMA_START_POS_MODEL_INDEX) { ++ int i, mi; ++ num_bits = (pos_slot >> 1) - 1; ++ ctx.rep0 = 2 | (pos_slot & 1); ++ if (pos_slot < LZMA_END_POS_MODEL_INDEX) { ++ ctx.rep0 <<= num_bits; ++ prob = p + LZMA_SPEC_POS + ++ ctx.rep0 - pos_slot - 1; ++ } else { ++ num_bits -= LZMA_NUM_ALIGN_BITS; ++ while (num_bits--) ++ ctx.rep0 = (ctx.rep0 << 1) | ++ rc_direct_bit(); ++ prob = p + LZMA_ALIGN; ++ ctx.rep0 <<= LZMA_NUM_ALIGN_BITS; ++ num_bits = LZMA_NUM_ALIGN_BITS; ++ } ++ i = 1; ++ mi = 1; ++ while (num_bits--) { ++ if (rc_get_bit(prob + mi, &mi)) ++ ctx.rep0 |= i; ++ i <<= 1; ++ } ++ } else ++ ctx.rep0 = pos_slot; ++ if (++(ctx.rep0) == 0) ++ return; ++ } ++ ++ len += LZMA_MATCH_MIN_LEN; ++ ++ copy_bytes(ctx.rep0, len); ++} ++ ++ ++static int ++do_unlzma(void) ++{ ++ u8 hdr_buf[sizeof(struct lzma_header)]; ++ struct lzma_header *header = (struct lzma_header *)hdr_buf; ++ u32 pos_state_mask; ++ u32 literal_pos_mask; ++ int lc, pb, lp; ++ int num_probs; ++ int i, mi; ++ u16 *p; ++ ++ for (i = 0; i < sizeof(struct lzma_header); i++) { ++ hdr_buf[i] = rc_read(); ++ } ++ ++ ctx.pos = 0; ++ ctx.state = 0; ++ ctx.rep0 = ctx.rep1 = ctx.rep2 = ctx.rep3 = 1; ++ ++ ctx.previous_byte = 0; ++ ctx.code = 0; ++ ctx.range = 0xFFFFFFFF; ++ ++ if (header->pos >= (9 * 5 * 5)) ++ return -1; ++ ++ mi = 0; ++ lc = header->pos; ++ while (lc >= 9) { ++ mi++; ++ lc -= 9; ++ } ++ pb = 0; ++ lp = mi; ++ while (lp >= 5) { ++ pb++; ++ lp -= 5; ++ } ++ pos_state_mask = (1 << pb) - 1; ++ literal_pos_mask = (1 << lp) - 1; ++ ++ p = (u16 *) ctx.workspace; ++ if (!p) ++ return -1; ++ ++ num_probs = LZMA_LITERAL + (LZMA_LIT_SIZE << (lc + lp)); ++ for (i = 0; i < num_probs; i++) ++ p[i] = (1 << RC_MODEL_TOTAL_BITS) >> 1; ++ ++ for (i = 0; i < 5; i++) ++ rc_get_code(); ++ ++ while (1) { ++ int pos_state = ctx.pos & pos_state_mask; ++ u16 *prob = p + LZMA_IS_MATCH + ++ (ctx.state << LZMA_NUM_POS_BITS_MAX) + pos_state; ++ if (rc_is_bit_0(prob)) ++ process_bit0(p, pos_state, prob, ++ lc, literal_pos_mask); ++ else { ++ process_bit1(p, pos_state, prob); ++ if (ctx.rep0 == 0) ++ break; ++ } ++ } ++ ++ return ctx.pos; ++} ++ ++ ++static int unlzma(unsigned char *dest, const unsigned char *src, unsigned char *workspace) ++{ ++ memset(&ctx, 0, sizeof(ctx)); ++ ctx.outbuf = dest; ++ ctx.next_in = src; ++ ctx.next_out = dest; ++ ctx.workspace = workspace; ++ ++ return do_unlzma(); ++} ++ ++ +--- /dev/null ++++ b/arch/arm/boot/compressed/unlzma.h +@@ -0,0 +1,81 @@ ++/* LZMA uncompresion module for pcomp ++ * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org> ++ * ++ * Based on: ++ * Initial Linux kernel adaptation ++ * Copyright (C) 2006 Alain < alain@knaff.lu > ++ * ++ * Based on small lzma deflate implementation/Small range coder ++ * implementation for lzma. ++ * Copyright (C) 2006 Aurelien Jacobs < aurel@gnuage.org > ++ * ++ * Based on LzmaDecode.c from the LZMA SDK 4.22 (http://www.7-zip.org/) ++ * Copyright (C) 1999-2005 Igor Pavlov ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published ++ * by the Free Software Foundation. ++ */ ++#ifndef __UNLZMA_H ++#define __UNLZMA_H ++ ++struct lzma_header { ++ __u8 pos; ++ __le32 dict_size; ++ __le64 uncompr_size; ++} __attribute__ ((packed)); ++ ++ ++#define RC_TOP_BITS 24 ++#define RC_MOVE_BITS 5 ++#define RC_MODEL_TOTAL_BITS 11 ++ ++#define LZMA_BASE_SIZE 1846 ++#define LZMA_LIT_SIZE 768 ++ ++#define LZMA_NUM_POS_BITS_MAX 4 ++ ++#define LZMA_LEN_NUM_LOW_BITS 3 ++#define LZMA_LEN_NUM_MID_BITS 3 ++#define LZMA_LEN_NUM_HIGH_BITS 8 ++ ++#define LZMA_LEN_CHOICE 0 ++#define LZMA_LEN_CHOICE_2 (LZMA_LEN_CHOICE + 1) ++#define LZMA_LEN_LOW (LZMA_LEN_CHOICE_2 + 1) ++#define LZMA_LEN_MID (LZMA_LEN_LOW \ ++ + (1 << (LZMA_NUM_POS_BITS_MAX + LZMA_LEN_NUM_LOW_BITS))) ++#define LZMA_LEN_HIGH (LZMA_LEN_MID \ ++ +(1 << (LZMA_NUM_POS_BITS_MAX + LZMA_LEN_NUM_MID_BITS))) ++#define LZMA_NUM_LEN_PROBS (LZMA_LEN_HIGH + (1 << LZMA_LEN_NUM_HIGH_BITS)) ++ ++#define LZMA_NUM_STATES 12 ++#define LZMA_NUM_LIT_STATES 7 ++ ++#define LZMA_START_POS_MODEL_INDEX 4 ++#define LZMA_END_POS_MODEL_INDEX 14 ++#define LZMA_NUM_FULL_DISTANCES (1 << (LZMA_END_POS_MODEL_INDEX >> 1)) ++ ++#define LZMA_NUM_POS_SLOT_BITS 6 ++#define LZMA_NUM_LEN_TO_POS_STATES 4 ++ ++#define LZMA_NUM_ALIGN_BITS 4 ++ ++#define LZMA_MATCH_MIN_LEN 2 ++ ++#define LZMA_IS_MATCH 0 ++#define LZMA_IS_REP (LZMA_IS_MATCH + (LZMA_NUM_STATES << LZMA_NUM_POS_BITS_MAX)) ++#define LZMA_IS_REP_G0 (LZMA_IS_REP + LZMA_NUM_STATES) ++#define LZMA_IS_REP_G1 (LZMA_IS_REP_G0 + LZMA_NUM_STATES) ++#define LZMA_IS_REP_G2 (LZMA_IS_REP_G1 + LZMA_NUM_STATES) ++#define LZMA_IS_REP_0_LONG (LZMA_IS_REP_G2 + LZMA_NUM_STATES) ++#define LZMA_POS_SLOT (LZMA_IS_REP_0_LONG \ ++ + (LZMA_NUM_STATES << LZMA_NUM_POS_BITS_MAX)) ++#define LZMA_SPEC_POS (LZMA_POS_SLOT \ ++ +(LZMA_NUM_LEN_TO_POS_STATES << LZMA_NUM_POS_SLOT_BITS)) ++#define LZMA_ALIGN (LZMA_SPEC_POS \ ++ + LZMA_NUM_FULL_DISTANCES - LZMA_END_POS_MODEL_INDEX) ++#define LZMA_LEN_CODER (LZMA_ALIGN + (1 << LZMA_NUM_ALIGN_BITS)) ++#define LZMA_REP_LEN_CODER (LZMA_LEN_CODER + LZMA_NUM_LEN_PROBS) ++#define LZMA_LITERAL (LZMA_REP_LEN_CODER + LZMA_NUM_LEN_PROBS) ++ ++#endif +--- a/scripts/Makefile.lib ++++ b/scripts/Makefile.lib +@@ -182,4 +182,6 @@ cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) + quiet_cmd_gzip = GZIP $@ + cmd_gzip = gzip -f -9 < $< > $@ + ++quiet_cmd_lzma = LZMA $@ ++cmd_lzma = lzma e $< $@ -lc1 -lp2 -pb2 -eos + |