mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-25 07:23:07 +02:00
277b4f4f30
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19905 3c298f89-4303-0410-b956-a3cf2f4a3e73
166 lines
4.3 KiB
Diff
166 lines
4.3 KiB
Diff
From fdf23ed283bc6ef5c25076ce2065f892120ff556 Mon Sep 17 00:00:00 2001
|
|
From: Phillip Lougher <phillip@lougher.demon.co.uk>
|
|
Date: Thu, 22 Oct 2009 04:57:38 +0100
|
|
Subject: [PATCH] Squashfs: Make unlzma available to non initramfs/initrd code
|
|
|
|
Add a config option DECOMPRESS_LZMA_NEEDED which allows subsystems to
|
|
specify they need the unlzma code. Normally decompress_unlzma.c is
|
|
compiled with __init and unlzma is not exported to modules.
|
|
|
|
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
|
|
---
|
|
fs/squashfs/Kconfig | 1 +
|
|
include/linux/decompress/bunzip2_mm.h | 12 ++++++++++++
|
|
include/linux/decompress/inflate_mm.h | 12 ++++++++++++
|
|
include/linux/decompress/mm.h | 3 ---
|
|
include/linux/decompress/unlzma_mm.h | 20 ++++++++++++++++++++
|
|
lib/Kconfig | 3 +++
|
|
lib/decompress_bunzip2.c | 1 +
|
|
lib/decompress_inflate.c | 1 +
|
|
lib/decompress_unlzma.c | 5 ++++-
|
|
9 files changed, 54 insertions(+), 4 deletions(-)
|
|
create mode 100644 include/linux/decompress/bunzip2_mm.h
|
|
create mode 100644 include/linux/decompress/inflate_mm.h
|
|
create mode 100644 include/linux/decompress/unlzma_mm.h
|
|
|
|
--- a/fs/squashfs/Kconfig
|
|
+++ b/fs/squashfs/Kconfig
|
|
@@ -30,6 +30,7 @@ config SQUASHFS_LZMA
|
|
bool "Include support for LZMA compressed file systems"
|
|
depends on SQUASHFS
|
|
select DECOMPRESS_LZMA
|
|
+ select DECOMPRESS_LZMA_NEEDED
|
|
|
|
config SQUASHFS_EMBEDDED
|
|
|
|
--- /dev/null
|
|
+++ b/include/linux/decompress/bunzip2_mm.h
|
|
@@ -0,0 +1,12 @@
|
|
+#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
|
|
+#endif
|
|
+
|
|
+#endif
|
|
--- /dev/null
|
|
+++ b/include/linux/decompress/inflate_mm.h
|
|
@@ -0,0 +1,12 @@
|
|
+#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
|
|
+#endif
|
|
+
|
|
+#endif
|
|
--- a/include/linux/decompress/mm.h
|
|
+++ b/include/linux/decompress/mm.h
|
|
@@ -53,8 +53,6 @@ static void free(void *where)
|
|
|
|
#define set_error_fn(x)
|
|
|
|
-#define INIT
|
|
-
|
|
#else /* STATIC */
|
|
|
|
/* Code active when compiled standalone for use when loading ramdisk: */
|
|
@@ -77,7 +75,6 @@ static void free(void *where)
|
|
static void(*error)(char *m);
|
|
#define set_error_fn(x) error = x;
|
|
|
|
-#define INIT __init
|
|
#define STATIC
|
|
|
|
#include <linux/init.h>
|
|
--- /dev/null
|
|
+++ b/include/linux/decompress/unlzma_mm.h
|
|
@@ -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
|
|
--- a/lib/Kconfig
|
|
+++ b/lib/Kconfig
|
|
@@ -121,6 +121,9 @@ config DECOMPRESS_LZO
|
|
select LZO_DECOMPRESS
|
|
tristate
|
|
|
|
+config DECOMPRESS_LZMA_NEEDED
|
|
+ boolean
|
|
+
|
|
#
|
|
# Generic allocator support is selected if needed
|
|
#
|
|
--- a/lib/decompress_bunzip2.c
|
|
+++ b/lib/decompress_bunzip2.c
|
|
@@ -52,6 +52,7 @@
|
|
#include <linux/slab.h>
|
|
#endif /* STATIC */
|
|
|
|
+#include <linux/decompress/bunzip2_mm.h>
|
|
#include <linux/decompress/mm.h>
|
|
|
|
#ifndef INT_MAX
|
|
--- a/lib/decompress_inflate.c
|
|
+++ b/lib/decompress_inflate.c
|
|
@@ -23,6 +23,7 @@
|
|
|
|
#endif /* STATIC */
|
|
|
|
+#include <linux/decompress/inflate_mm.h>
|
|
#include <linux/decompress/mm.h>
|
|
|
|
#define GZIP_IOBUF_SIZE (16*1024)
|
|
--- a/lib/decompress_unlzma.c
|
|
+++ b/lib/decompress_unlzma.c
|
|
@@ -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))
|
|
@@ -531,7 +532,7 @@ static inline void INIT process_bit1(str
|
|
|
|
|
|
|
|
-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,
|
|
@@ -664,4 +665,6 @@ STATIC int INIT decompress(unsigned char
|
|
{
|
|
return unlzma(buf, in_len - 4, fill, flush, output, posp, error_fn);
|
|
}
|
|
+#elif defined(CONFIG_DECOMPRESS_LZMA_NEEDED)
|
|
+EXPORT_SYMBOL(unlzma);
|
|
#endif
|