diff options
Diffstat (limited to 'tools/squashfs4/patches/160-expose_lzma_xz_options.patch')
| -rw-r--r-- | tools/squashfs4/patches/160-expose_lzma_xz_options.patch | 929 |
1 files changed, 0 insertions, 929 deletions
diff --git a/tools/squashfs4/patches/160-expose_lzma_xz_options.patch b/tools/squashfs4/patches/160-expose_lzma_xz_options.patch deleted file mode 100644 index 9e1c1fbb1e..0000000000 --- a/tools/squashfs4/patches/160-expose_lzma_xz_options.patch +++ /dev/null @@ -1,929 +0,0 @@ ---- /dev/null -+++ b/squashfs-tools/lzma_xz_options.h -@@ -0,0 +1,115 @@ -+#ifndef LZMA_XZ_OPTIONS_H -+#define LZMA_XZ_OPTIONS_H -+/* -+ * Copyright (c) 2011 -+ * Jonas Gorski <jonas.gorski@gmail.com> -+ * -+ * 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. -+ * -+ * lzma_options.h -+ */ -+ -+#include <stdint.h> -+ -+#ifndef linux -+#ifdef __FreeBSD__ -+#include <machine/endian.h> -+#endif -+#define __BYTE_ORDER BYTE_ORDER -+#define __BIG_ENDIAN BIG_ENDIAN -+#define __LITTLE_ENDIAN LITTLE_ENDIAN -+#else -+#include <endian.h> -+#endif -+ -+ -+ -+struct lzma_opts { -+ uint32_t dict_size; -+ uint32_t flags; -+#define LZMA_OPT_FLT_MASK 0xffff -+#define LZMA_OPT_PRE_OFF 16 -+#define LZMA_OPT_PRE_MASK (0xf << LZMA_OPT_PRE_OFF) -+#define LZMA_OPT_EXTREME 20 -+ uint16_t bit_opts; -+#define LZMA_OPT_LC_OFF 0 -+#define LZMA_OPT_LC_MASK (0x7 << LZMA_OPT_LC_OFF) -+#define LZMA_OPT_LP_OFF 3 -+#define LZMA_OPT_LP_MASK (0x7 << LZMA_OPT_LP_OFF) -+#define LZMA_OPT_PB_OFF 6 -+#define LZMA_OPT_PB_MASK (0x7 << LZMA_OPT_PB_OFF) -+ uint16_t fb; -+}; -+ -+#if __BYTE_ORDER == __BIG_ENDIAN -+extern unsigned int inswap_le32(unsigned int); -+ -+#define SQUASHFS_INSWAP_LZMA_COMP_OPTS(s) { \ -+ (s)->flags = inswap_le32((s)->flags); \ -+ (s)->bit_opts = inswap_le16((s)->bit_opts); \ -+ (s)->fb = inswap_le16((s)->fb); \ -+ (s)->dict_size = inswap_le32((s)->dict_size); \ -+} -+#else -+#define SQUASHFS_INSWAP_LZMA_COMP_OPTS(s) -+#endif -+ -+#define MEMLIMIT (32 * 1024 * 1024) -+ -+#define LZMA_OPT_LC_MIN 0 -+#define LZMA_OPT_LC_MAX 4 -+#define LZMA_OPT_LC_DEFAULT 3 -+ -+#define LZMA_OPT_LP_MIN 0 -+#define LZMA_OPT_LP_MAX 4 -+#define LZMA_OPT_LP_DEFAULT 0 -+ -+#define LZMA_OPT_PB_MIN 0 -+#define LZMA_OPT_PB_MAX 4 -+#define LZMA_OPT_PB_DEFAULT 2 -+ -+#define LZMA_OPT_FB_MIN 5 -+#define LZMA_OPT_FB_MAX 273 -+#define LZMA_OPT_FB_DEFAULT 64 -+ -+enum { -+ LZMA_OPT_LZMA = 1, -+ LZMA_OPT_XZ -+}; -+ -+struct lzma_xz_options { -+ int preset; -+ int extreme; -+ int lc; -+ int lp; -+ int pb; -+ int fb; -+ int dict_size; -+ int flags; -+}; -+ -+struct lzma_xz_options *lzma_xz_get_options(void); -+ -+int lzma_xz_options(char *argv[], int argc, int lzmaver); -+ -+int lzma_xz_options_post(int block_size, int lzmaver); -+ -+void *lzma_xz_dump_options(int block_size, int *size, int flags); -+ -+int lzma_xz_extract_options(int block_size, void *buffer, int size, int lzmaver); -+ -+void lzma_xz_usage(int lzmaver); -+ -+#endif ---- /dev/null -+++ b/squashfs-tools/lzma_xz_options.c -@@ -0,0 +1,365 @@ -+/* -+ * Copyright (c) 2011 -+ * Jonas Gorski <jonas.gorski@gmail.com> -+ * -+ * 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. -+ * -+ * lzma_options.c -+ * -+ * Common options for LZMA1 and 2 compressors. Based on xz_wrapper.c -+ */ -+ -+#include <stdio.h> -+#include <string.h> -+#include <stdlib.h> -+ -+#include <lzma.h> -+ -+#include "lzma_xz_options.h" -+ -+static const char const *lzmaver_str[] = { "", "lzma", "xz" }; -+ -+static struct lzma_xz_options options = { -+ .flags = 0, -+ .preset = 6, -+ .extreme = 0, -+ .lc = LZMA_OPT_LC_DEFAULT, -+ .lp = LZMA_OPT_LP_DEFAULT, -+ .pb = LZMA_OPT_PB_DEFAULT, -+ .fb = LZMA_OPT_FB_DEFAULT, -+ .dict_size = 0, -+}; -+ -+static float lzma_dict_percent = 0; -+ -+struct lzma_xz_options *lzma_xz_get_options(void) -+{ -+ return &options; -+} -+ -+ -+int lzma_xz_options(char *argv[], int argc, int lzmaver) -+{ -+ const char *comp_name = lzmaver_str[lzmaver]; -+ -+ if(strcmp(argv[0], "-Xpreset") == 0) { -+ int preset; -+ -+ if(argc < 2) { -+ fprintf(stderr, "%s: -Xpreset missing preset\n", comp_name); -+ goto failed; -+ } -+ -+ preset = atoi(argv[1]); -+ -+ if (preset < 0 || preset > 9) { -+ fprintf(stderr, "%s: -Xpreset invalid value\n", comp_name); -+ goto failed; -+ } -+ options.preset = preset; -+ return 1; -+ } else if(strcmp(argv[0], "-Xe") == 0) { -+ options.extreme = 1; -+ return 0; -+ } else if(strcmp(argv[0], "-Xlc") == 0) { -+ int lc; -+ -+ if(argc < 2) { -+ fprintf(stderr, "%s: -Xlc missing lc\n", comp_name); -+ goto failed; -+ } -+ -+ lc = atoi(argv[1]); -+ -+ if (lc < LZMA_OPT_LC_MIN || lc > LZMA_OPT_LC_MAX) { -+ fprintf(stderr, "%s: -Xlc invalid value\n", comp_name); -+ goto failed; -+ } -+ options.lc = lc; -+ return 1; -+ } else if(strcmp(argv[0], "-Xlp") == 0) { -+ int lp; -+ -+ if(argc < 2) { -+ fprintf(stderr, "%s: -Xlp missing lp\n", comp_name); -+ goto failed; -+ } -+ -+ lp = atoi(argv[1]); -+ -+ if (lp < LZMA_OPT_LP_MIN || lp > LZMA_OPT_LP_MAX) { -+ fprintf(stderr, "%s: -Xlp invalid value\n", comp_name); -+ goto failed; -+ } -+ options.lp = lp; -+ return 1; -+ } else if(strcmp(argv[0], "-Xpb") == 0) { -+ int pb; -+ -+ if(argc < 2) { -+ fprintf(stderr, "%s: -Xpb missing pb\n", comp_name); -+ goto failed; -+ } -+ -+ pb = atoi(argv[1]); -+ -+ if (pb < LZMA_OPT_PB_MIN || pb > LZMA_OPT_PB_MAX) { -+ fprintf(stderr, "%s: -Xbp invalid value\n", comp_name); -+ goto failed; -+ } -+ options.pb = pb; -+ return 1; -+ } else if(strcmp(argv[0], "-Xfb") == 0) { -+ int fb; -+ -+ if(argc < 2) { -+ fprintf(stderr, "%s: -Xfb missing fb\n", comp_name); -+ goto failed; -+ } -+ -+ fb = atoi(argv[1]); -+ -+ if (fb < LZMA_OPT_FB_MIN || fb > LZMA_OPT_FB_MAX) { -+ fprintf(stderr, "%s: -Xfb invalid value\n", comp_name); -+ goto failed; -+ } -+ options.fb = fb; -+ return 1; -+ } else if(strcmp(argv[0], "-Xdict-size") == 0) { -+ char *b; -+ float size; -+ -+ if(argc < 2) { -+ fprintf(stderr, "%s: -Xdict-size missing dict-size\n", comp_name); -+ goto failed; -+ } -+ -+ size = strtof(argv[1], &b); -+ if(*b == '%') { -+ if(size <= 0 || size > 100) { -+ fprintf(stderr, "%s: -Xdict-size percentage " -+ "should be 0 < dict-size <= 100\n", comp_name); -+ goto failed; -+ } -+ -+ lzma_dict_percent = size; -+ options.dict_size = 0; -+ } else { -+ if((float) ((int) size) != size) { -+ fprintf(stderr, "%s: -Xdict-size can't be " -+ "fractional unless a percentage of the" -+ " block size\n", comp_name); -+ goto failed; -+ } -+ -+ lzma_dict_percent = 0; -+ options.dict_size = (int) size; -+ -+ if(*b == 'k' || *b == 'K') -+ options.dict_size *= 1024; -+ else if(*b == 'm' || *b == 'M') -+ options.dict_size *= 1024 * 1024; -+ else if(*b != '\0') { -+ fprintf(stderr, "%s: -Xdict-size invalid " -+ "dict-size\n", comp_name); -+ goto failed; -+ } -+ } -+ -+ return 1; -+ } -+ -+ return -1; -+ -+failed: -+ return -2; -+ -+} -+ -+int lzma_xz_options_post(int block_size, int lzmaver) -+{ -+ const char *comp_name = lzmaver_str[lzmaver]; -+ /* -+ * if -Xdict-size has been specified use this to compute the datablock -+ * dictionary size -+ */ -+ if(options.dict_size || lzma_dict_percent) { -+ int dict_size_min = (lzmaver == 1 ? 4096 : 8192); -+ int n; -+ -+ if(options.dict_size) { -+ if(options.dict_size > block_size) { -+ fprintf(stderr, "%s: -Xdict-size is larger than" -+ " block_size\n", comp_name); -+ goto failed; -+ } -+ } else -+ options.dict_size = block_size * lzma_dict_percent / 100; -+ -+ if(options.dict_size < dict_size_min) { -+ fprintf(stderr, "%s: -Xdict-size should be %i bytes " -+ "or larger\n", comp_name, dict_size_min); -+ goto failed; -+ } -+ -+ /* -+ * dictionary_size must be storable in xz header as either -+ * 2^n or as 2^n+2^(n+1) -+ */ -+ n = ffs(options.dict_size) - 1; -+ if(options.dict_size != (1 << n) && -+ options.dict_size != ((1 << n) + (1 << (n + 1)))) { -+ fprintf(stderr, "%s: -Xdict-size is an unsupported " -+ "value, dict-size must be storable in %s " -+ "header\n", comp_name, comp_name); -+ fprintf(stderr, "as either 2^n or as 2^n+2^(n+1). " -+ "Example dict-sizes are 75%%, 50%%, 37.5%%, " -+ "25%%,\n"); -+ fprintf(stderr, "or 32K, 16K, 8K etc.\n"); -+ goto failed; -+ } -+ -+ } else -+ /* No -Xdict-size specified, use defaults */ -+ options.dict_size = block_size; -+ -+ return 0; -+ -+failed: -+ return -1; -+} -+ -+static struct lzma_opts lzma_comp_opts; -+ -+void *lzma_xz_dump_options(int block_size, int *size, int flags) -+{ -+ /* No need to store default options */ -+ if (options.preset == 6 && -+ options.extreme == 0 && -+ options.lc == LZMA_OPT_LC_DEFAULT && -+ options.lp == LZMA_OPT_LC_DEFAULT && -+ options.pb == LZMA_OPT_PB_DEFAULT && -+ options.fb == 0 && -+ options.dict_size == block_size && -+ flags == 0) -+ return NULL; -+ -+ *size = sizeof(struct lzma_opts); -+ -+ lzma_comp_opts.flags |= flags; -+ -+ if (options.extreme) -+ lzma_comp_opts.flags |= LZMA_OPT_EXTREME; -+ -+ lzma_comp_opts.flags |= ((options.preset << LZMA_OPT_PRE_OFF) & LZMA_OPT_PRE_MASK); -+ -+ lzma_comp_opts.bit_opts = -+ ((options.lc << LZMA_OPT_LC_OFF) & LZMA_OPT_LC_MASK) | -+ ((options.lp << LZMA_OPT_LP_OFF) & LZMA_OPT_LP_MASK) | -+ ((options.pb << LZMA_OPT_PB_OFF) & LZMA_OPT_PB_MASK); -+ lzma_comp_opts.fb = options.fb; -+ lzma_comp_opts.dict_size = options.dict_size; -+ -+ SQUASHFS_INSWAP_LZMA_COMP_OPTS(&lzma_comp_opts); -+ -+ return &lzma_comp_opts; -+} -+ -+int lzma_xz_extract_options(int block_size, void *buffer, int size, int lzmaver) -+{ -+ if (size == 0) { -+ /* default options */ -+ options.preset = 6; -+ options.extreme = 0; -+ options.lc = LZMA_OPT_LC_DEFAULT; -+ options.lp = LZMA_OPT_LC_DEFAULT; -+ options.pb = LZMA_OPT_PB_DEFAULT; -+ options.fb = LZMA_OPT_FB_DEFAULT; -+ options.dict_size = block_size; -+ options.flags = 0; -+ } else { -+ struct lzma_opts *comp_opts = buffer; -+ int n; -+ -+ if (size != sizeof(struct lzma_opts)) -+ goto failed; -+ -+ SQUASHFS_INSWAP_LZMA_COMP_OPTS(comp_opts); -+ -+ options.flags = comp_opts->flags & LZMA_OPT_FLT_MASK; -+ options.preset = (comp_opts->flags & LZMA_OPT_PRE_MASK) >> LZMA_OPT_PRE_OFF; -+ options.extreme = !!(comp_opts->flags & LZMA_OPT_EXTREME); -+ -+ options.lc = (comp_opts->bit_opts & LZMA_OPT_LC_MASK) >> LZMA_OPT_LC_OFF; -+ options.lp = (comp_opts->bit_opts & LZMA_OPT_LP_MASK) >> LZMA_OPT_LP_OFF; -+ options.pb = (comp_opts->bit_opts & LZMA_OPT_PB_MASK) >> LZMA_OPT_PB_OFF; -+ options.fb = comp_opts->fb; -+ options.dict_size = comp_opts->dict_size; -+ -+ /* check that the LZMA bit options are in range */ -+ if (options.lc < LZMA_OPT_LC_MIN || options.lc > LZMA_OPT_LC_MAX || -+ options.lp < LZMA_OPT_LP_MIN || options.lp > LZMA_OPT_LP_MAX || -+ options.pb < LZMA_OPT_PB_MIN || options.pb > LZMA_OPT_PB_MAX || -+ options.fb < LZMA_OPT_FB_MIN || options.fb > LZMA_OPT_FB_MAX) -+ goto failed; -+ -+ /* -+ * check that the dictionary size seems correct - the dictionary -+ * size should 2^n or 2^n+2^(n+1) -+ */ -+ n = ffs(options.dict_size) - 1; -+ if(options.dict_size != (1 << n) && -+ options.dict_size != ((1 << n) + (1 << (n + 1)))) -+ goto failed; -+ -+ } -+ -+ return 0; -+ -+failed: -+ fprintf(stderr, "%s: error reading stored compressor options from " -+ "filesystem!\n", lzmaver_str[lzmaver]); -+ return -1; -+} -+ -+void lzma_xz_usage(int lzmaver) -+{ -+ fprintf(stderr, "\t -Xpreset <preset>\n"); -+ fprintf(stderr, "\t\tcompression preset (0-9, default 6)\n"); -+ fprintf(stderr, "\t -Xe\n"); -+ fprintf(stderr, "\t\tTry to improve compression ratio by using more "); -+ fprintf(stderr, "CPU time.\n"); -+ fprintf(stderr, "\t -Xlc <lc>\n"); -+ fprintf(stderr, "\t\tNumber of literal context bits (0-4, default 3)\n"); -+ fprintf(stderr, "\t -Xlp <lp>\n"); -+ fprintf(stderr, "\t\tNumber of literal position bits (0-4, default 0)\n"); -+ fprintf(stderr, "\t -Xpb <pb>\n"); -+ fprintf(stderr, "\t\tNumber of position bits (0-4, default 2)\n"); -+ fprintf(stderr, "\t -Xnice <nice>\n"); -+ fprintf(stderr, "\t\tNice length of a match (5-273, default 64)\n"); -+ fprintf(stderr, "\t -Xdict-size <dict-size>\n"); -+ fprintf(stderr, "\t\tUse <dict-size> as the %s dictionary size. The", -+ lzmaver == LZMA_OPT_LZMA ? "LZMA" : "XZ"); -+ fprintf(stderr, " dictionary size\n\t\tcan be specified as a"); -+ fprintf(stderr, " percentage of the block size, or as an\n\t\t"); -+ fprintf(stderr, "absolute value. The dictionary size must be less"); -+ fprintf(stderr, " than or equal\n\t\tto the block size and %d bytes", -+ lzmaver == LZMA_OPT_LZMA ? 4096 : 8192); -+ fprintf(stderr, " or larger. It must also be\n\t\tstorable in the lzma"); -+ fprintf(stderr, " header as either 2^n or as 2^n+2^(n+1).\n\t\t"); -+ fprintf(stderr, "Example dict-sizes are 75%%, 50%%, 37.5%%, 25%%, or"); -+ fprintf(stderr, " 32K, 16K, 8K\n\t\tetc.\n"); -+ -+} ---- a/squashfs-tools/lzma_xz_wrapper.c -+++ b/squashfs-tools/lzma_xz_wrapper.c -@@ -27,6 +27,7 @@ - - #include "squashfs_fs.h" - #include "compressor.h" -+#include "lzma_xz_options.h" - - #define LZMA_PROPS_SIZE 5 - #define LZMA_UNCOMP_SIZE 8 -@@ -38,13 +39,27 @@ - static int lzma_compress(void *dummy, void *dest, void *src, int size, - int block_size, int *error) - { -+ uint32_t preset; - unsigned char *d = (unsigned char *) dest; -+ struct lzma_xz_options *opts = lzma_xz_get_options(); -+ - lzma_options_lzma opt; - lzma_stream strm = LZMA_STREAM_INIT; - int res; - -- lzma_lzma_preset(&opt, LZMA_OPTIONS); -- opt.dict_size = block_size; -+ preset = opts->preset; -+ -+ if (opts->extreme) -+ preset |= LZMA_PRESET_EXTREME; -+ -+ lzma_lzma_preset(&opt, opts->preset); -+ opt.lc = opts->lc; -+ opt.lp = opts->lp; -+ opt.pb = opts->pb; -+ if (opts->fb) -+ opt.nice_len = opts->fb; -+ -+ opt.dict_size = opts->dict_size; - - res = lzma_alone_encoder(&strm, &opt); - if(res != LZMA_OK) { -@@ -143,13 +158,45 @@ failed: - return -1; - } - -+static int lzma_options(char *argv[], int argc) -+{ -+ return lzma_xz_options(argv, argc, LZMA_OPT_LZMA); -+} -+ -+ -+static int lzma_options_post(int block_size) -+{ -+ return lzma_xz_options_post(block_size, LZMA_OPT_LZMA); -+} -+ -+ -+static void *lzma_dump_options(int block_size, int *size) -+{ -+ return lzma_xz_dump_options(block_size, size, 0); -+} -+ -+ -+static int lzma_extract_options(int block_size, void *buffer, int size) -+{ -+ return lzma_xz_extract_options(block_size, buffer, size, LZMA_OPT_LZMA); -+} -+ -+ -+void lzma_usage() -+{ -+ lzma_xz_usage(LZMA_OPT_LZMA); -+} -+ - - struct compressor lzma_comp_ops = { - .init = NULL, - .compress = lzma_compress, - .uncompress = lzma_uncompress, -- .options = NULL, -- .usage = NULL, -+ .options = lzma_options, -+ .options_post = lzma_options_post, -+ .dump_options = lzma_dump_options, -+ .extract_options = lzma_extract_options, -+ .usage = lzma_usage, - .id = LZMA_COMPRESSION, - .name = "lzma", - .supported = 1 ---- a/squashfs-tools/xz_wrapper.h -+++ b/squashfs-tools/xz_wrapper.h -@@ -24,25 +24,6 @@ - * - */ - --#ifndef linux --#define __BYTE_ORDER BYTE_ORDER --#define __BIG_ENDIAN BIG_ENDIAN --#define __LITTLE_ENDIAN LITTLE_ENDIAN --#else --#include <endian.h> --#endif -- --#if __BYTE_ORDER == __BIG_ENDIAN --extern unsigned int inswap_le32(unsigned int); -- --#define SQUASHFS_INSWAP_COMP_OPTS(s) { \ -- (s)->dictionary_size = inswap_le32((s)->dictionary_size); \ -- (s)->flags = inswap_le32((s)->flags); \ --} --#else --#define SQUASHFS_INSWAP_COMP_OPTS(s) --#endif -- - #define MEMLIMIT (32 * 1024 * 1024) - - struct bcj { ---- a/squashfs-tools/xz_wrapper.c -+++ b/squashfs-tools/xz_wrapper.c -@@ -30,6 +30,7 @@ - #include "squashfs_fs.h" - #include "xz_wrapper.h" - #include "compressor.h" -+#include "lzma_xz_options.h" - - static struct bcj bcj[] = { - { "x86", LZMA_FILTER_X86, 0 }, -@@ -41,22 +42,18 @@ static struct bcj bcj[] = { - { NULL, LZMA_VLI_UNKNOWN, 0 } - }; - --static struct comp_opts comp_opts; -- - static int filter_count = 1; --static int dictionary_size = 0; --static float dictionary_percent = 0; - - - static int xz_options(char *argv[], int argc) - { -- int i; -- char *name; -- - if(strcmp(argv[0], "-Xbcj") == 0) { -+ int i; -+ char *name; -+ - if(argc < 2) { - fprintf(stderr, "xz: -Xbcj missing filter\n"); -- goto failed; -+ return -2; - } - - name = argv[1]; -@@ -76,190 +73,50 @@ static int xz_options(char *argv[], int - } - if(bcj[i].name == NULL) { - fprintf(stderr, "xz: -Xbcj unrecognised " -- "filter\n"); -- goto failed; -- } -- } -- -- return 1; -- } else if(strcmp(argv[0], "-Xdict-size") == 0) { -- char *b; -- float size; -- -- if(argc < 2) { -- fprintf(stderr, "xz: -Xdict-size missing dict-size\n"); -- goto failed; -- } -- -- size = strtof(argv[1], &b); -- if(*b == '%') { -- if(size <= 0 || size > 100) { -- fprintf(stderr, "xz: -Xdict-size percentage " -- "should be 0 < dict-size <= 100\n"); -- goto failed; -- } -- -- dictionary_percent = size; -- dictionary_size = 0; -- } else { -- if((float) ((int) size) != size) { -- fprintf(stderr, "xz: -Xdict-size can't be " -- "fractional unless a percentage of the" -- " block size\n"); -- goto failed; -- } -- -- dictionary_percent = 0; -- dictionary_size = (int) size; -- -- if(*b == 'k' || *b == 'K') -- dictionary_size *= 1024; -- else if(*b == 'm' || *b == 'M') -- dictionary_size *= 1024 * 1024; -- else if(*b != '\0') { -- fprintf(stderr, "xz: -Xdict-size invalid " -- "dict-size\n"); -- goto failed; -+ "filter\n"); -+ return -2; - } - } -- - return 1; -+ } else { -+ return lzma_xz_options(argv, argc, LZMA_OPT_XZ); - } -- -- return -1; -- --failed: -- return -2; - } - - - static int xz_options_post(int block_size) - { -- /* -- * if -Xdict-size has been specified use this to compute the datablock -- * dictionary size -- */ -- if(dictionary_size || dictionary_percent) { -- int n; -- -- if(dictionary_size) { -- if(dictionary_size > block_size) { -- fprintf(stderr, "xz: -Xdict-size is larger than" -- " block_size\n"); -- goto failed; -- } -- } else -- dictionary_size = block_size * dictionary_percent / 100; -- -- if(dictionary_size < 8192) { -- fprintf(stderr, "xz: -Xdict-size should be 8192 bytes " -- "or larger\n"); -- goto failed; -- } -- -- /* -- * dictionary_size must be storable in xz header as either -- * 2^n or as 2^n+2^(n+1) -- */ -- n = ffs(dictionary_size) - 1; -- if(dictionary_size != (1 << n) && -- dictionary_size != ((1 << n) + (1 << (n + 1)))) { -- fprintf(stderr, "xz: -Xdict-size is an unsupported " -- "value, dict-size must be storable in xz " -- "header\n"); -- fprintf(stderr, "as either 2^n or as 2^n+2^(n+1). " -- "Example dict-sizes are 75%%, 50%%, 37.5%%, " -- "25%%,\n"); -- fprintf(stderr, "or 32K, 16K, 8K etc.\n"); -- goto failed; -- } -- -- } else -- /* No -Xdict-size specified, use defaults */ -- dictionary_size = block_size; -- -- return 0; -- --failed: -- return -1; -+ return lzma_xz_options_post(block_size, LZMA_OPT_XZ); - } - - - static void *xz_dump_options(int block_size, int *size) - { -- int flags = 0, i; -- -- /* -- * don't store compressor specific options in file system if the -- * default options are being used - no compressor options in the -- * file system means the default options are always assumed -- * -- * Defaults are: -- * metadata dictionary size: SQUASHFS_METADATA_SIZE -- * datablock dictionary size: block_size -- * 1 filter -- */ -- if(dictionary_size == block_size && filter_count == 1) -- return NULL; -+ int i, flags = 0; - - for(i = 0; bcj[i].name; i++) - flags |= bcj[i].selected << i; - -- comp_opts.dictionary_size = dictionary_size; -- comp_opts.flags = flags; -- -- SQUASHFS_INSWAP_COMP_OPTS(&comp_opts); -- -- *size = sizeof(comp_opts); -- return &comp_opts; -+ return lzma_xz_dump_options(block_size, size, flags); - } - - - static int xz_extract_options(int block_size, void *buffer, int size) - { -- struct comp_opts *comp_opts = buffer; -- int flags, i, n; -- -- if(size == 0) { -- /* set defaults */ -- dictionary_size = block_size; -- flags = 0; -- } else { -- /* check passed comp opts struct is of the correct length */ -- if(size != sizeof(struct comp_opts)) -- goto failed; -- -- SQUASHFS_INSWAP_COMP_OPTS(comp_opts); -- -- dictionary_size = comp_opts->dictionary_size; -- flags = comp_opts->flags; -- -- /* -- * check that the dictionary size seems correct - the dictionary -- * size should 2^n or 2^n+2^(n+1) -- */ -- n = ffs(dictionary_size) - 1; -- if(dictionary_size != (1 << n) && -- dictionary_size != ((1 << n) + (1 << (n + 1)))) -- goto failed; -- } -+ int ret = lzma_xz_extract_options(block_size, buffer, size, LZMA_OPT_XZ); - -- filter_count = 1; -- for(i = 0; bcj[i].name; i++) { -- if((flags >> i) & 1) { -- bcj[i].selected = 1; -- filter_count ++; -- } else -- bcj[i].selected = 0; -+ if (!ret) { -+ int i; -+ struct lzma_xz_options *opts = lzma_xz_get_options(); -+ for(i = 0; bcj[i].name; i++) { -+ if((opts->flags >> i) & 1) { -+ bcj[i].selected = 1; -+ filter_count ++; -+ } else -+ bcj[i].selected = 0; -+ } - } -- -- return 0; -- --failed: -- fprintf(stderr, "xz: error reading stored compressor options from " -- "filesystem!\n"); -- -- return -1; -+ return ret; - } - - -@@ -268,6 +125,7 @@ static int xz_init(void **strm, int bloc - int i, j, filters = datablock ? filter_count : 1; - struct filter *filter = malloc(filters * sizeof(struct filter)); - struct xz_stream *stream; -+ struct lzma_xz_options *opts = lzma_xz_get_options(); - - if(filter == NULL) - goto failed; -@@ -281,7 +139,7 @@ static int xz_init(void **strm, int bloc - - memset(filter, 0, filters * sizeof(struct filter)); - -- stream->dictionary_size = datablock ? dictionary_size : -+ stream->dictionary_size = datablock ? opts->dict_size : - SQUASHFS_METADATA_SIZE; - - filter[0].filter[0].id = LZMA_FILTER_LZMA2; -@@ -323,14 +181,25 @@ static int xz_compress(void *strm, void - lzma_ret res = 0; - struct xz_stream *stream = strm; - struct filter *selected = NULL; -+ struct lzma_xz_options *opts = lzma_xz_get_options(); - - stream->filter[0].buffer = dest; - - for(i = 0; i < stream->filters; i++) { -+ uint32_t preset = opts->preset; - struct filter *filter = &stream->filter[i]; - -- if(lzma_lzma_preset(&stream->opt, LZMA_PRESET_DEFAULT)) -- goto failed; -+ if (opts->extreme) -+ preset |= LZMA_PRESET_EXTREME; -+ -+ if(lzma_lzma_preset(&stream->opt, preset)) -+ goto failed; -+ -+ stream->opt.lc = opts->lc; -+ stream->opt.lp = opts->lp; -+ stream->opt.pb = opts->pb; -+ if (opts->fb) -+ stream->opt.nice_len = opts->fb; - - stream->opt.dict_size = stream->dictionary_size; - -@@ -384,22 +253,13 @@ static int xz_uncompress(void *dest, voi - - void xz_usage() - { -+ lzma_xz_usage(LZMA_OPT_XZ); - fprintf(stderr, "\t -Xbcj filter1,filter2,...,filterN\n"); - fprintf(stderr, "\t\tCompress using filter1,filter2,...,filterN in"); - fprintf(stderr, " turn\n\t\t(in addition to no filter), and choose"); - fprintf(stderr, " the best compression.\n"); - fprintf(stderr, "\t\tAvailable filters: x86, arm, armthumb,"); - fprintf(stderr, " powerpc, sparc, ia64\n"); -- fprintf(stderr, "\t -Xdict-size <dict-size>\n"); -- fprintf(stderr, "\t\tUse <dict-size> as the XZ dictionary size. The"); -- fprintf(stderr, " dictionary size\n\t\tcan be specified as a"); -- fprintf(stderr, " percentage of the block size, or as an\n\t\t"); -- fprintf(stderr, "absolute value. The dictionary size must be less"); -- fprintf(stderr, " than or equal\n\t\tto the block size and 8192 bytes"); -- fprintf(stderr, " or larger. It must also be\n\t\tstorable in the xz"); -- fprintf(stderr, " header as either 2^n or as 2^n+2^(n+1).\n\t\t"); -- fprintf(stderr, "Example dict-sizes are 75%%, 50%%, 37.5%%, 25%%, or"); -- fprintf(stderr, " 32K, 16K, 8K\n\t\tetc.\n"); - } - - ---- a/squashfs-tools/Makefile -+++ b/squashfs-tools/Makefile -@@ -140,6 +140,8 @@ COMPRESSORS += xz - endif - - ifneq ($(LZMA_XZ_SUPPORT)$(XZ_SUPPORT),) -+MKSQUASHFS_OBJS += lzma_xz_options.o -+UNSQUASHFS_OBJS += lzma_xz_options.o - ifneq ($(LZMA_LIB),) - MKSQUASHFS_OBJS += $(LZMA_LIB) - UNSQUASHFS_OBJS += $(LZMA_LIB) |