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-rw-r--r--target/linux/brcm47xx/patches-2.6.28/500-lzma_initramfs.patch125
1 files changed, 0 insertions, 125 deletions
diff --git a/target/linux/brcm47xx/patches-2.6.28/500-lzma_initramfs.patch b/target/linux/brcm47xx/patches-2.6.28/500-lzma_initramfs.patch
deleted file mode 100644
index 6a4a666c3c..0000000000
--- a/target/linux/brcm47xx/patches-2.6.28/500-lzma_initramfs.patch
+++ /dev/null
@@ -1,125 +0,0 @@
---- a/init/initramfs.c
-+++ b/init/initramfs.c
-@@ -7,6 +7,7 @@
- #include <linux/string.h>
- #include <linux/syscalls.h>
- #include <linux/utime.h>
-+#include <linux/vmalloc.h>
-
- static __initdata char *message;
- static void __init error(char *x)
-@@ -475,6 +476,69 @@ static void __init flush_window(void)
- outcnt = 0;
- }
-
-+#include <linux/LzmaDecode.h>
-+static int __init lzma_unzip(void)
-+{
-+ unsigned int i; /* temp value */
-+ unsigned int lc; /* literal context bits */
-+ unsigned int lp; /* literal pos state bits */
-+ unsigned int pb; /* pos state bits */
-+ unsigned int osize; /* uncompressed size */
-+ unsigned char *workspace;
-+ unsigned char* outputbuffer;
-+ unsigned int outsizeProcessed = 0;
-+ int workspace_size;
-+ int res;
-+
-+ // lzma args
-+ i = get_byte();
-+ lc = i % 9, i = i / 9;
-+ lp = i % 5, pb = i / 5;
-+
-+ // skip dictionary size
-+ for (i = 0; i < 4; i++)
-+ get_byte();
-+
-+ /* read the lower half of uncompressed size in the header */
-+ osize = ((unsigned int)get_byte()) +
-+ ((unsigned int)get_byte() << 8) +
-+ ((unsigned int)get_byte() << 16) +
-+ ((unsigned int)get_byte() << 24);
-+
-+ /* skip rest of the header (upper half of uncompressed size) */
-+ for (i = 0; i < 4; i++)
-+ get_byte();
-+
-+ workspace_size = ((LZMA_BASE_SIZE + (LZMA_LIT_SIZE << (lc + lp))) * sizeof(CProb)) + 100;
-+ printk( KERN_NOTICE "initramfs: LZMA lc=%d,lp=%d,pb=%d,origSize=%d\n",
-+ lc,lp,pb,osize);
-+ outputbuffer = vmalloc(osize);
-+ if (outputbuffer == 0) {
-+ printk(KERN_ERR "initramfs: Couldn't allocate lzma output buffer\n");
-+ return -1;
-+ }
-+
-+ workspace = vmalloc(workspace_size);
-+ if (workspace == NULL) {
-+ printk(KERN_ERR "initramfs: Couldn't allocate lzma workspace\n");
-+ return -1;
-+ }
-+
-+ res = LzmaDecode(workspace, workspace_size, lc, lp, pb, inbuf + inptr, insize - inptr, outputbuffer, osize, &outsizeProcessed);
-+ if( res != 0 ) {
-+ panic( KERN_ERR "initramfs: Lzma decode failure\n");
-+ return -1;
-+ }
-+
-+ flush_buffer(outputbuffer, outsizeProcessed);
-+ inptr = insize;
-+
-+ vfree(outputbuffer);
-+ vfree(workspace);
-+ state = Reset;
-+ return 0;
-+}
-+
- static char * __init unpack_to_rootfs(char *buf, unsigned len, int check_only)
- {
- int written;
-@@ -509,12 +573,28 @@ static char * __init unpack_to_rootfs(ch
- inptr = 0;
- outcnt = 0; /* bytes in output buffer */
- bytes_out = 0;
-- crc = (ulg)0xffffffffL; /* shift register contents */
-- makecrc();
-- gunzip();
-- if (state != Reset)
-+ if( inbuf[0] == 037 && ((inbuf[1] == 0213) || (inbuf[1] == 0236)))
-+ {
-+ printk( KERN_NOTICE "detected gzip initramfs\n");
-+ crc = (ulg)0xffffffffL; /* shift register contents */
-+ makecrc();
-+ gunzip();
-+ if (state != Reset)
- error("junk in gzipped archive");
-- this_header = saved_offset + inptr;
-+ }
-+ else if(!memcmp(inbuf+1, "\x00\x00\x80\x00", 4)) /* FIXME: hardcoded dictionary size */
-+ {
-+ printk( KERN_NOTICE "detected lzma initramfs\n");
-+ lzma_unzip();
-+ }
-+ else
-+ {
-+ // skip forward ?
-+ crc = (ulg)0xffffffffL; /* shift register contents */
-+ makecrc();
-+ gunzip();
-+ }
-+ this_header = saved_offset + inptr;
- buf += inptr;
- len -= inptr;
- }
---- a/scripts/gen_initramfs_list.sh
-+++ b/scripts/gen_initramfs_list.sh
-@@ -287,7 +287,7 @@ if [ ! -z ${output_file} ]; then
- if [ "${is_cpio_compressed}" = "compressed" ]; then
- cat ${cpio_tfile} > ${output_file}
- else
-- cat ${cpio_tfile} | gzip -f -9 - > ${output_file}
-+ lzma e -lc1 -lp2 -pb2 ${cpio_tfile} ${output_file}
- fi
- [ -z ${cpio_file} ] && rm ${cpio_tfile}
- fi