- re-add squashfs lzma support
This commit is contained in:
Stephan Raue 2010-05-24 16:39:06 +02:00
parent 27e44c2095
commit 5c18d28fb9
6 changed files with 693 additions and 0 deletions

View File

@ -0,0 +1,678 @@
diff -Naur linux-2.6.34-old/fs/squashfs/decompressor.c linux-2.6.34-new/fs/squashfs/decompressor.c
--- linux-2.6.34-old/fs/squashfs/decompressor.c 2010-05-16 14:17:36.000000000 -0700
+++ linux-2.6.34-new/fs/squashfs/decompressor.c 2010-05-17 13:11:22.000000000 -0700
@@ -50,7 +50,11 @@
static const struct squashfs_decompressor *decompressor[] = {
&squashfs_zlib_comp_ops,
+#ifdef CONFIG_SQUASHFS_LZMA
+ &squashfs_lzma_comp_ops,
+#else
&squashfs_lzma_unsupported_comp_ops,
+#endif
&squashfs_lzo_unsupported_comp_ops,
&squashfs_unknown_comp_ops
};
diff -Naur linux-2.6.34-old/fs/squashfs/Kconfig linux-2.6.34-new/fs/squashfs/Kconfig
--- linux-2.6.34-old/fs/squashfs/Kconfig 2010-05-16 14:17:36.000000000 -0700
+++ linux-2.6.34-new/fs/squashfs/Kconfig 2010-05-17 13:11:22.000000000 -0700
@@ -26,6 +26,12 @@
If unsure, say N.
+config SQUASHFS_LZMA
+ bool "Include support for LZMA compressed file systems"
+ depends on SQUASHFS
+ select DECOMPRESS_LZMA
+ select DECOMPRESS_LZMA_NEEDED
+
config SQUASHFS_EMBEDDED
bool "Additional option for memory-constrained systems"
diff -Naur linux-2.6.34-old/fs/squashfs/lzma_wrapper.c linux-2.6.34-new/fs/squashfs/lzma_wrapper.c
--- linux-2.6.34-old/fs/squashfs/lzma_wrapper.c 1969-12-31 16:00:00.000000000 -0800
+++ linux-2.6.34-new/fs/squashfs/lzma_wrapper.c 2010-05-17 13:11:22.000000000 -0700
@@ -0,0 +1,152 @@
+/*
+ * Squashfs - a compressed read only filesystem for Linux
+ *
+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ * Phillip Lougher <phillip@lougher.demon.co.uk>
+ *
+ * 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * lzma_wrapper.c
+ */
+
+#include <asm/unaligned.h>
+#include <linux/slab.h>
+#include <linux/buffer_head.h>
+#include <linux/mutex.h>
+#include <linux/vmalloc.h>
+#include <linux/decompress/unlzma.h>
+
+#include "squashfs_fs.h"
+#include "squashfs_fs_sb.h"
+#include "squashfs_fs_i.h"
+#include "squashfs.h"
+#include "decompressor.h"
+
+struct squashfs_lzma {
+ void *input;
+ void *output;
+};
+
+/* decompress_unlzma.c is currently non re-entrant... */
+DEFINE_MUTEX(lzma_mutex);
+
+/* decompress_unlzma.c doesn't provide any context in its callbacks... */
+static int lzma_error;
+
+static void error(char *m)
+{
+ ERROR("unlzma error: %s\n", m);
+ lzma_error = 1;
+}
+
+
+static void *lzma_init(struct squashfs_sb_info *msblk)
+{
+ struct squashfs_lzma *stream = kzalloc(sizeof(*stream), GFP_KERNEL);
+ if (stream == NULL)
+ goto failed;
+ stream->input = vmalloc(msblk->block_size);
+ if (stream->input == NULL)
+ goto failed;
+ stream->output = vmalloc(msblk->block_size);
+ if (stream->output == NULL)
+ goto failed2;
+
+ return stream;
+
+failed2:
+ vfree(stream->input);
+failed:
+ ERROR("failed to allocate lzma workspace\n");
+ kfree(stream);
+ return NULL;
+}
+
+
+static void lzma_free(void *strm)
+{
+ struct squashfs_lzma *stream = strm;
+
+ if (stream) {
+ vfree(stream->input);
+ vfree(stream->output);
+ }
+ kfree(stream);
+}
+
+
+static int lzma_uncompress(struct squashfs_sb_info *msblk, void **buffer,
+ struct buffer_head **bh, int b, int offset, int length, int srclength,
+ int pages)
+{
+ struct squashfs_lzma *stream = msblk->stream;
+ void *buff = stream->input;
+ int avail, i, bytes = length, res;
+
+ mutex_lock(&lzma_mutex);
+
+ for (i = 0; i < b; i++) {
+ wait_on_buffer(bh[i]);
+ if (!buffer_uptodate(bh[i]))
+ goto block_release;
+
+ avail = min(bytes, msblk->devblksize - offset);
+ memcpy(buff, bh[i]->b_data + offset, avail);
+ buff += avail;
+ bytes -= avail;
+ offset = 0;
+ put_bh(bh[i]);
+ }
+
+ lzma_error = 0;
+ res = unlzma(stream->input, length, NULL, NULL, stream->output, NULL,
+ error);
+ if (res || lzma_error)
+ goto failed;
+
+ /* uncompressed size is stored in the LZMA header (5 byte offset) */
+ res = bytes = get_unaligned_le32(stream->input + 5);
+ for (i = 0, buff = stream->output; bytes && i < pages; i++) {
+ avail = min_t(int, bytes, PAGE_CACHE_SIZE);
+ memcpy(buffer[i], buff, avail);
+ buff += avail;
+ bytes -= avail;
+ }
+ if (bytes)
+ goto failed;
+
+ mutex_unlock(&lzma_mutex);
+ return res;
+
+block_release:
+ for (; i < b; i++)
+ put_bh(bh[i]);
+
+failed:
+ mutex_unlock(&lzma_mutex);
+
+ ERROR("lzma decompression failed, data probably corrupt\n");
+ return -EIO;
+}
+
+const struct squashfs_decompressor squashfs_lzma_comp_ops = {
+ .init = lzma_init,
+ .free = lzma_free,
+ .decompress = lzma_uncompress,
+ .id = LZMA_COMPRESSION,
+ .name = "lzma",
+ .supported = 1
+};
+
diff -Naur linux-2.6.34-old/fs/squashfs/Makefile linux-2.6.34-new/fs/squashfs/Makefile
--- linux-2.6.34-old/fs/squashfs/Makefile 2010-05-16 14:17:36.000000000 -0700
+++ linux-2.6.34-new/fs/squashfs/Makefile 2010-05-17 13:11:22.000000000 -0700
@@ -5,3 +5,4 @@
obj-$(CONFIG_SQUASHFS) += squashfs.o
squashfs-y += block.o cache.o dir.o export.o file.o fragment.o id.o inode.o
squashfs-y += namei.o super.o symlink.o zlib_wrapper.o decompressor.o
+squashfs-$(CONFIG_SQUASHFS_LZMA) += lzma_wrapper.o
diff -Naur linux-2.6.34-old/fs/squashfs/squashfs.h linux-2.6.34-new/fs/squashfs/squashfs.h
--- linux-2.6.34-old/fs/squashfs/squashfs.h 2010-05-16 14:17:36.000000000 -0700
+++ linux-2.6.34-new/fs/squashfs/squashfs.h 2010-05-17 13:11:22.000000000 -0700
@@ -94,3 +94,6 @@
/* zlib_wrapper.c */
extern const struct squashfs_decompressor squashfs_zlib_comp_ops;
+
+/* lzma wrapper.c */
+extern const struct squashfs_decompressor squashfs_lzma_comp_ops;
diff -Naur linux-2.6.34-old/include/linux/decompress/bunzip2_mm.h linux-2.6.34-new/include/linux/decompress/bunzip2_mm.h
--- linux-2.6.34-old/include/linux/decompress/bunzip2_mm.h 1969-12-31 16:00:00.000000000 -0800
+++ linux-2.6.34-new/include/linux/decompress/bunzip2_mm.h 2010-05-17 13:11:22.000000000 -0700
@@ -0,0 +1,13 @@
+#ifndef BUNZIP2_MM_H
+#define BUNZIP2_MM_H
+
+#ifdef STATIC
+/* Code active when included from pre-boot environment: */
+#define INIT
+#else
+/* Compile for initramfs/initrd code only */
+#define INIT __init
+static void(*error)(char *m);
+#endif
+
+#endif
diff -Naur linux-2.6.34-old/include/linux/decompress/inflate_mm.h linux-2.6.34-new/include/linux/decompress/inflate_mm.h
--- linux-2.6.34-old/include/linux/decompress/inflate_mm.h 1969-12-31 16:00:00.000000000 -0800
+++ linux-2.6.34-new/include/linux/decompress/inflate_mm.h 2010-05-17 13:11:22.000000000 -0700
@@ -0,0 +1,13 @@
+#ifndef INFLATE_MM_H
+#define INFLATE_MM_H
+
+#ifdef STATIC
+/* Code active when included from pre-boot environment: */
+#define INIT
+#else
+/* Compile for initramfs/initrd code only */
+#define INIT __init
+static void(*error)(char *m);
+#endif
+
+#endif
diff -Naur linux-2.6.34-old/include/linux/decompress/mm.h linux-2.6.34-new/include/linux/decompress/mm.h
--- linux-2.6.34-old/include/linux/decompress/mm.h 2010-05-16 14:17:36.000000000 -0700
+++ linux-2.6.34-new/include/linux/decompress/mm.h 2010-05-17 13:11:22.000000000 -0700
@@ -63,8 +63,6 @@
#define set_error_fn(x)
-#define INIT
-
#else /* STATIC */
/* Code active when compiled standalone for use when loading ramdisk: */
@@ -84,10 +82,8 @@
#define large_malloc(a) vmalloc(a)
#define large_free(a) vfree(a)
-static void(*error)(char *m);
#define set_error_fn(x) error = x;
-#define INIT __init
#define STATIC
#include <linux/init.h>
diff -Naur linux-2.6.34-old/include/linux/decompress/unlzma_mm.h linux-2.6.34-new/include/linux/decompress/unlzma_mm.h
--- linux-2.6.34-old/include/linux/decompress/unlzma_mm.h 1969-12-31 16:00:00.000000000 -0800
+++ linux-2.6.34-new/include/linux/decompress/unlzma_mm.h 2010-05-17 13:11:22.000000000 -0700
@@ -0,0 +1,20 @@
+#ifndef UNLZMA_MM_H
+#define UNLZMA_MM_H
+
+#ifdef STATIC
+
+/* Code active when included from pre-boot environment: */
+#define INIT
+
+#elif defined(CONFIG_DECOMPRESS_LZMA_NEEDED)
+
+/* Make it available to non initramfs/initrd code */
+#define INIT
+#include <linux/module.h>
+#else
+
+/* Compile for initramfs/initrd code only */
+#define INIT __init
+#endif
+
+#endif
diff -Naur linux-2.6.34-old/include/linux/decompress/unlzo_mm.h linux-2.6.34-new/include/linux/decompress/unlzo_mm.h
--- linux-2.6.34-old/include/linux/decompress/unlzo_mm.h 1969-12-31 16:00:00.000000000 -0800
+++ linux-2.6.34-new/include/linux/decompress/unlzo_mm.h 2010-05-17 13:11:22.000000000 -0700
@@ -0,0 +1,13 @@
+#ifndef UNLZO_MM_H
+#define UNLZO_MM_H
+
+#ifdef STATIC
+/* Code active when included from pre-boot environment: */
+#define INIT
+#else
+/* Compile for initramfs/initrd code only */
+#define INIT __init
+static void(*error)(char *m);
+#endif
+
+#endif
diff -Naur linux-2.6.34-old/lib/decompress_bunzip2.c linux-2.6.34-new/lib/decompress_bunzip2.c
--- linux-2.6.34-old/lib/decompress_bunzip2.c 2010-05-16 14:17:36.000000000 -0700
+++ linux-2.6.34-new/lib/decompress_bunzip2.c 2010-05-17 13:11:22.000000000 -0700
@@ -52,6 +52,7 @@
#include <linux/slab.h>
#endif /* STATIC */
+#include <linux/decompress/bunzip2_mm.h>
#include <linux/decompress/mm.h>
#ifndef INT_MAX
diff -Naur linux-2.6.34-old/lib/decompress_inflate.c linux-2.6.34-new/lib/decompress_inflate.c
--- linux-2.6.34-old/lib/decompress_inflate.c 2010-05-16 14:17:36.000000000 -0700
+++ linux-2.6.34-new/lib/decompress_inflate.c 2010-05-17 13:11:22.000000000 -0700
@@ -23,6 +23,7 @@
#endif /* STATIC */
+#include <linux/decompress/inflate_mm.h>
#include <linux/decompress/mm.h>
#define GZIP_IOBUF_SIZE (16*1024)
diff -Naur linux-2.6.34-old/lib/decompress_unlzma.c linux-2.6.34-new/lib/decompress_unlzma.c
--- linux-2.6.34-old/lib/decompress_unlzma.c 2010-05-16 14:17:36.000000000 -0700
+++ linux-2.6.34-new/lib/decompress_unlzma.c 2010-05-17 13:11:22.000000000 -0700
@@ -36,6 +36,7 @@
#include <linux/slab.h>
#endif /* STATIC */
+#include <linux/decompress/unlzma_mm.h>
#include <linux/decompress/mm.h>
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
@@ -88,7 +89,7 @@
}
/* Called twice: once at startup and once in rc_normalize() */
-static void INIT rc_read(struct rc *rc)
+static void INIT rc_read(struct rc *rc, void(*error)(char *x))
{
rc->buffer_size = rc->fill((char *)rc->buffer, LZMA_IOBUF_SIZE);
if (rc->buffer_size <= 0)
@@ -115,13 +116,13 @@
rc->range = 0xFFFFFFFF;
}
-static inline void INIT rc_init_code(struct rc *rc)
+static inline void INIT rc_init_code(struct rc *rc, void(*error)(char *x))
{
int i;
for (i = 0; i < 5; i++) {
if (rc->ptr >= rc->buffer_end)
- rc_read(rc);
+ rc_read(rc, error);
rc->code = (rc->code << 8) | *rc->ptr++;
}
}
@@ -134,32 +135,33 @@
}
/* Called twice, but one callsite is in inline'd rc_is_bit_0_helper() */
-static void INIT rc_do_normalize(struct rc *rc)
+static void INIT rc_do_normalize(struct rc *rc, void(*error)(char *x))
{
if (rc->ptr >= rc->buffer_end)
- rc_read(rc);
+ rc_read(rc, error);
rc->range <<= 8;
rc->code = (rc->code << 8) | *rc->ptr++;
}
-static inline void INIT rc_normalize(struct rc *rc)
+static inline void INIT rc_normalize(struct rc *rc, void(*error)(char *x))
{
if (rc->range < (1 << RC_TOP_BITS))
- rc_do_normalize(rc);
+ rc_do_normalize(rc, error);
}
/* Called 9 times */
/* Why rc_is_bit_0_helper exists?
*Because we want to always expose (rc->code < rc->bound) to optimizer
*/
-static inline uint32_t INIT rc_is_bit_0_helper(struct rc *rc, uint16_t *p)
+static inline uint32_t INIT rc_is_bit_0_helper(struct rc *rc, uint16_t *p,
+ void (*error)(char *x))
{
- rc_normalize(rc);
+ rc_normalize(rc, error);
rc->bound = *p * (rc->range >> RC_MODEL_TOTAL_BITS);
return rc->bound;
}
-static inline int INIT rc_is_bit_0(struct rc *rc, uint16_t *p)
+static inline int INIT rc_is_bit_0(struct rc *rc, uint16_t *p, void(*error)(char *x))
{
- uint32_t t = rc_is_bit_0_helper(rc, p);
+ uint32_t t = rc_is_bit_0_helper(rc, p, error);
return rc->code < t;
}
@@ -177,9 +179,9 @@
}
/* Called 4 times in unlzma loop */
-static int INIT rc_get_bit(struct rc *rc, uint16_t *p, int *symbol)
+static int INIT rc_get_bit(struct rc *rc, uint16_t *p, int *symbol, void(*error)(char *x))
{
- if (rc_is_bit_0(rc, p)) {
+ if (rc_is_bit_0(rc, p, error)) {
rc_update_bit_0(rc, p);
*symbol *= 2;
return 0;
@@ -191,9 +193,9 @@
}
/* Called once */
-static inline int INIT rc_direct_bit(struct rc *rc)
+static inline int INIT rc_direct_bit(struct rc *rc , void(*error)(char *x))
{
- rc_normalize(rc);
+ rc_normalize(rc, error);
rc->range >>= 1;
if (rc->code >= rc->range) {
rc->code -= rc->range;
@@ -204,13 +206,14 @@
/* Called twice */
static inline void INIT
-rc_bit_tree_decode(struct rc *rc, uint16_t *p, int num_levels, int *symbol)
+rc_bit_tree_decode(struct rc *rc, uint16_t *p, int num_levels, int *symbol,
+ void(*error)(char *x))
{
int i = num_levels;
*symbol = 1;
while (i--)
- rc_get_bit(rc, p + *symbol, symbol);
+ rc_get_bit(rc, p + *symbol, symbol, error);
*symbol -= 1 << num_levels;
}
@@ -347,7 +350,8 @@
static inline void INIT process_bit0(struct writer *wr, struct rc *rc,
struct cstate *cst, uint16_t *p,
int pos_state, uint16_t *prob,
- int lc, uint32_t literal_pos_mask) {
+ int lc, uint32_t literal_pos_mask,
+ void(*error)(char *x)) {
int mi = 1;
rc_update_bit_0(rc, prob);
prob = (p + LZMA_LITERAL +
@@ -365,7 +369,7 @@
match_byte <<= 1;
bit = match_byte & 0x100;
prob_lit = prob + 0x100 + bit + mi;
- if (rc_get_bit(rc, prob_lit, &mi)) {
+ if (rc_get_bit(rc, prob_lit, &mi, error)) {
if (!bit)
break;
} else {
@@ -376,7 +380,7 @@
}
while (mi < 0x100) {
uint16_t *prob_lit = prob + mi;
- rc_get_bit(rc, prob_lit, &mi);
+ rc_get_bit(rc, prob_lit, &mi, error);
}
write_byte(wr, mi);
if (cst->state < 4)
@@ -389,7 +393,8 @@
static inline void INIT process_bit1(struct writer *wr, struct rc *rc,
struct cstate *cst, uint16_t *p,
- int pos_state, uint16_t *prob) {
+ int pos_state, uint16_t *prob,
+ void(*error)(char *x)) {
int offset;
uint16_t *prob_len;
int num_bits;
@@ -397,7 +402,7 @@
rc_update_bit_1(rc, prob);
prob = p + LZMA_IS_REP + cst->state;
- if (rc_is_bit_0(rc, prob)) {
+ if (rc_is_bit_0(rc, prob, error)) {
rc_update_bit_0(rc, prob);
cst->rep3 = cst->rep2;
cst->rep2 = cst->rep1;
@@ -407,13 +412,13 @@
} else {
rc_update_bit_1(rc, prob);
prob = p + LZMA_IS_REP_G0 + cst->state;
- if (rc_is_bit_0(rc, prob)) {
+ if (rc_is_bit_0(rc, prob, error)) {
rc_update_bit_0(rc, prob);
prob = (p + LZMA_IS_REP_0_LONG
+ (cst->state <<
LZMA_NUM_POS_BITS_MAX) +
pos_state);
- if (rc_is_bit_0(rc, prob)) {
+ if (rc_is_bit_0(rc, prob, error)) {
rc_update_bit_0(rc, prob);
cst->state = cst->state < LZMA_NUM_LIT_STATES ?
@@ -428,13 +433,13 @@
rc_update_bit_1(rc, prob);
prob = p + LZMA_IS_REP_G1 + cst->state;
- if (rc_is_bit_0(rc, prob)) {
+ if (rc_is_bit_0(rc, prob, error)) {
rc_update_bit_0(rc, prob);
distance = cst->rep1;
} else {
rc_update_bit_1(rc, prob);
prob = p + LZMA_IS_REP_G2 + cst->state;
- if (rc_is_bit_0(rc, prob)) {
+ if (rc_is_bit_0(rc, prob, error)) {
rc_update_bit_0(rc, prob);
distance = cst->rep2;
} else {
@@ -452,7 +457,7 @@
}
prob_len = prob + LZMA_LEN_CHOICE;
- if (rc_is_bit_0(rc, prob_len)) {
+ if (rc_is_bit_0(rc, prob_len, error)) {
rc_update_bit_0(rc, prob_len);
prob_len = (prob + LZMA_LEN_LOW
+ (pos_state <<
@@ -462,7 +467,7 @@
} else {
rc_update_bit_1(rc, prob_len);
prob_len = prob + LZMA_LEN_CHOICE_2;
- if (rc_is_bit_0(rc, prob_len)) {
+ if (rc_is_bit_0(rc, prob_len, error)) {
rc_update_bit_0(rc, prob_len);
prob_len = (prob + LZMA_LEN_MID
+ (pos_state <<
@@ -478,7 +483,7 @@
}
}
- rc_bit_tree_decode(rc, prob_len, num_bits, &len);
+ rc_bit_tree_decode(rc, prob_len, num_bits, &len, error);
len += offset;
if (cst->state < 4) {
@@ -493,7 +498,7 @@
<< LZMA_NUM_POS_SLOT_BITS);
rc_bit_tree_decode(rc, prob,
LZMA_NUM_POS_SLOT_BITS,
- &pos_slot);
+ &pos_slot, error);
if (pos_slot >= LZMA_START_POS_MODEL_INDEX) {
int i, mi;
num_bits = (pos_slot >> 1) - 1;
@@ -506,7 +511,7 @@
num_bits -= LZMA_NUM_ALIGN_BITS;
while (num_bits--)
cst->rep0 = (cst->rep0 << 1) |
- rc_direct_bit(rc);
+ rc_direct_bit(rc, error);
prob = p + LZMA_ALIGN;
cst->rep0 <<= LZMA_NUM_ALIGN_BITS;
num_bits = LZMA_NUM_ALIGN_BITS;
@@ -514,7 +519,7 @@
i = 1;
mi = 1;
while (num_bits--) {
- if (rc_get_bit(rc, prob + mi, &mi))
+ if (rc_get_bit(rc, prob + mi, &mi, error))
cst->rep0 |= i;
i <<= 1;
}
@@ -531,12 +536,12 @@
-STATIC inline int INIT unlzma(unsigned char *buf, int in_len,
+STATIC int INIT unlzma(unsigned char *buf, int in_len,
int(*fill)(void*, unsigned int),
int(*flush)(void*, unsigned int),
unsigned char *output,
int *posp,
- void(*error_fn)(char *x)
+ void(*error)(char *x)
)
{
struct lzma_header header;
@@ -552,8 +557,6 @@
unsigned char *inbuf;
int ret = -1;
- set_error_fn(error_fn);
-
if (buf)
inbuf = buf;
else
@@ -576,7 +579,7 @@
for (i = 0; i < sizeof(header); i++) {
if (rc.ptr >= rc.buffer_end)
- rc_read(&rc);
+ rc_read(&rc, error);
((unsigned char *)&header)[i] = *rc.ptr++;
}
@@ -621,17 +624,17 @@
for (i = 0; i < num_probs; i++)
p[i] = (1 << RC_MODEL_TOTAL_BITS) >> 1;
- rc_init_code(&rc);
+ rc_init_code(&rc, error);
while (get_pos(&wr) < header.dst_size) {
int pos_state = get_pos(&wr) & pos_state_mask;
uint16_t *prob = p + LZMA_IS_MATCH +
(cst.state << LZMA_NUM_POS_BITS_MAX) + pos_state;
- if (rc_is_bit_0(&rc, prob))
+ if (rc_is_bit_0(&rc, prob, error))
process_bit0(&wr, &rc, &cst, p, pos_state, prob,
- lc, literal_pos_mask);
+ lc, literal_pos_mask, error);
else {
- process_bit1(&wr, &rc, &cst, p, pos_state, prob);
+ process_bit1(&wr, &rc, &cst, p, pos_state, prob, error);
if (cst.rep0 == 0)
break;
}
@@ -652,6 +655,9 @@
exit_0:
return ret;
}
+#if defined(CONFIG_DECOMPRESS_LZMA_NEEDED) && !defined(PREBOOT)
+EXPORT_SYMBOL(unlzma);
+#endif
#ifdef PREBOOT
STATIC int INIT decompress(unsigned char *buf, int in_len,
diff -Naur linux-2.6.34-old/lib/decompress_unlzo.c linux-2.6.34-new/lib/decompress_unlzo.c
--- linux-2.6.34-old/lib/decompress_unlzo.c 2010-05-16 14:17:36.000000000 -0700
+++ linux-2.6.34-new/lib/decompress_unlzo.c 2010-05-17 13:11:22.000000000 -0700
@@ -39,6 +39,7 @@
#include <linux/types.h>
#include <linux/lzo.h>
+#include <linux/decompress/unlzo_mm.h>
#include <linux/decompress/mm.h>
#include <linux/compiler.h>
diff -Naur linux-2.6.34-old/lib/Kconfig linux-2.6.34-new/lib/Kconfig
--- linux-2.6.34-old/lib/Kconfig 2010-05-16 14:17:36.000000000 -0700
+++ linux-2.6.34-new/lib/Kconfig 2010-05-17 13:11:22.000000000 -0700
@@ -121,6 +121,9 @@
select LZO_DECOMPRESS
tristate
+config DECOMPRESS_LZMA_NEEDED
+ boolean
+
#
# Generic allocator support is selected if needed
#
diff -Naur linux-2.6.34-old/lib/Makefile linux-2.6.34-new/lib/Makefile
--- linux-2.6.34-old/lib/Makefile 2010-05-16 14:17:36.000000000 -0700
+++ linux-2.6.34-new/lib/Makefile 2010-05-17 13:11:22.000000000 -0700
@@ -69,7 +69,7 @@
lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o
lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o
-lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o
+obj-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o
lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o
obj-$(CONFIG_TEXTSEARCH) += textsearch.o

View File

@ -1751,6 +1751,7 @@ CONFIG_MISC_FILESYSTEMS=y
CONFIG_HFSPLUS_FS=m
# CONFIG_CRAMFS is not set
CONFIG_SQUASHFS=y
CONFIG_SQUASHFS_LZMA=y
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
@ -2004,6 +2005,8 @@ CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_LZMA_NEEDED=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y

View File

@ -1722,6 +1722,7 @@ CONFIG_MISC_FILESYSTEMS=y
CONFIG_HFSPLUS_FS=m
# CONFIG_CRAMFS is not set
CONFIG_SQUASHFS=y
CONFIG_SQUASHFS_LZMA=y
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
@ -1975,6 +1976,8 @@ CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_LZMA_NEEDED=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y

View File

@ -1942,6 +1942,7 @@ CONFIG_MISC_FILESYSTEMS=y
CONFIG_HFSPLUS_FS=m
# CONFIG_CRAMFS is not set
CONFIG_SQUASHFS=y
CONFIG_SQUASHFS_LZMA=y
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
@ -2196,6 +2197,8 @@ CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_LZMA_NEEDED=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y

View File

@ -1768,6 +1768,7 @@ CONFIG_MISC_FILESYSTEMS=y
CONFIG_HFSPLUS_FS=m
# CONFIG_CRAMFS is not set
CONFIG_SQUASHFS=y
CONFIG_SQUASHFS_LZMA=y
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
@ -2021,6 +2022,8 @@ CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_LZMA_NEEDED=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y

View File

@ -1740,6 +1740,7 @@ CONFIG_MISC_FILESYSTEMS=y
CONFIG_HFSPLUS_FS=m
# CONFIG_CRAMFS is not set
CONFIG_SQUASHFS=y
CONFIG_SQUASHFS_LZMA=y
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
@ -1993,6 +1994,8 @@ CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_LZMA_NEEDED=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y