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authorAlbin Tonnerre <albin.tonnerre@free-electrons.com>2010-01-08 17:42:45 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-01-11 12:34:05 -0500
commit13510997d600a076e064f10587a8f6d20f8fff41 (patch)
treeadd740bac060355140ca6b19b237d0167d83a1ee /arch/x86/boot
parente7db7b4270ed2a606b8c0b5f944a5f92ade0e84c (diff)
x86: add support for LZO-compressed kernels
The necessary changes to the x86 Kconfig and boot/compressed to allow the use of this new compression method Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Tested-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Tested-by: Russell King <rmk@arm.linux.org.uk> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/boot')
-rw-r--r--arch/x86/boot/compressed/Makefile5
-rw-r--r--arch/x86/boot/compressed/misc.c4
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index f25bbd37765a..fbb47daf2459 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -4,7 +4,7 @@
4# create a compressed vmlinux image from the original vmlinux 4# create a compressed vmlinux image from the original vmlinux
5# 5#
6 6
7targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma head_$(BITS).o misc.o piggy.o 7targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.lzo head_$(BITS).o misc.o piggy.o
8 8
9KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 9KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
10KBUILD_CFLAGS += -fno-strict-aliasing -fPIC 10KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
@@ -49,10 +49,13 @@ $(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
49 $(call if_changed,bzip2) 49 $(call if_changed,bzip2)
50$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE 50$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
51 $(call if_changed,lzma) 51 $(call if_changed,lzma)
52$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE
53 $(call if_changed,lzo)
52 54
53suffix-$(CONFIG_KERNEL_GZIP) := gz 55suffix-$(CONFIG_KERNEL_GZIP) := gz
54suffix-$(CONFIG_KERNEL_BZIP2) := bz2 56suffix-$(CONFIG_KERNEL_BZIP2) := bz2
55suffix-$(CONFIG_KERNEL_LZMA) := lzma 57suffix-$(CONFIG_KERNEL_LZMA) := lzma
58suffix-$(CONFIG_KERNEL_LZO) := lzo
56 59
57quiet_cmd_mkpiggy = MKPIGGY $@ 60quiet_cmd_mkpiggy = MKPIGGY $@
58 cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false ) 61 cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false )
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 842b2a36174a..3b22fe8ab91b 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -162,6 +162,10 @@ static int lines, cols;
162#include "../../../../lib/decompress_unlzma.c" 162#include "../../../../lib/decompress_unlzma.c"
163#endif 163#endif
164 164
165#ifdef CONFIG_KERNEL_LZO
166#include "../../../../lib/decompress_unlzo.c"
167#endif
168
165static void scroll(void) 169static void scroll(void)
166{ 170{
167 int i; 171 int i;