target/linux/generic/patches-2.6.34/055-lzma_arm_kernel.patch

   1 From d0f226a0f104c7d1da1d215b8013359273e39e18 Mon Sep 17 00:00:00 2001
   2 From: Albin Tonnerre <albin.tonnerre@free-electrons.com>
   3 Date: Fri, 16 Oct 2009 16:17:22 +0200
   4 Subject: [PATCH] Add LZMA decompression on ARM
   5
   6
   7 Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>
   8 ---
   9  arch/arm/Kconfig                      |    1 +
  10  arch/arm/boot/compressed/Makefile     |    1 +
  11  arch/arm/boot/compressed/misc.c       |    4 ++++
  12  arch/arm/boot/compressed/piggy.lzma.S |    6 ++++++
  13  4 files changed, 12 insertions(+), 0 deletions(-)
  14  create mode 100644 arch/arm/boot/compressed/piggy.lzma.S
  15
  16 --- a/arch/arm/Kconfig
  17 +++ b/arch/arm/Kconfig
  18 @@ -21,6 +21,7 @@ config ARM
  19         select HAVE_GENERIC_DMA_COHERENT
  20         select HAVE_KERNEL_GZIP
  21         select HAVE_KERNEL_LZO
  22 +       select HAVE_KERNEL_LZMA
  23         select HAVE_PERF_EVENTS
  24         select PERF_USE_VMALLOC
  25         help
  26 --- a/arch/arm/boot/compressed/Makefile
  27 +++ b/arch/arm/boot/compressed/Makefile
  28 @@ -65,6 +65,7 @@ SEDFLAGS      = s/TEXT_START/$(ZTEXTADDR)/;s/
  29
  30  suffix_$(CONFIG_KERNEL_GZIP) = gzip
  31  suffix_$(CONFIG_KERNEL_LZO)  = lzo
  32 +suffix_$(CONFIG_KERNEL_LZMA) = lzma
  33
  34  targets       := vmlinux vmlinux.lds \
  35                  piggy.$(suffix_y) piggy.$(suffix_y).o \
  36 --- a/arch/arm/boot/compressed/decompress.c
  37 +++ b/arch/arm/boot/compressed/decompress.c
  38 @@ -40,6 +40,10 @@ extern void error(char *);
  39  #include "../../../../lib/decompress_unlzo.c"
  40  #endif
  41
  42 +#ifdef CONFIG_KERNEL_LZMA
  43 +#include "../../../../lib/decompress_unlzma.c"
  44 +#endif
  45 +
  46  void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x))
  47  {
  48         decompress(input, len, NULL, NULL, output, NULL, error);
  49 --- /dev/null
  50 +++ b/arch/arm/boot/compressed/piggy.lzma.S
  51 @@ -0,0 +1,6 @@
  52 +       .section .piggydata,#alloc
  53 +       .globl  input_data
  54 +input_data:
  55 +       .incbin "arch/arm/boot/compressed/piggy.lzma"
  56 +       .globl  input_data_end
  57 +input_data_end: