sh: Add support for LZO-compressed kernels.

Plugs in LZO along with the others. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
git-mirror · Jan 13, 2010 · c7b16ef · c7b16ef
1 parent 644755e
commit c7b16ef
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Showing 5 changed files with 26 additions and 8 deletions.
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
@@ -22,6 +22,7 @@ config SUPERH
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_LZMA
+	select HAVE_KERNEL_LZO
 	select HAVE_SYSCALL_TRACEPOINTS
 	select RTC_LIB
 	select GENERIC_ATOMIC64

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
@@ -203,8 +203,8 @@ endif
 libs-$(CONFIG_SUPERH32)		:= arch/sh/lib/	$(libs-y)
 libs-$(CONFIG_SUPERH64)		:= arch/sh/lib64/ $(libs-y)
 
-BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.srec uImage.bin \
-	       zImage vmlinux.srec romImage
+BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.lzo \
+	       uImage.srec uImage.bin zImage vmlinux.srec romImage
 PHONY += $(BOOT_TARGETS)
 
 all: $(KBUILD_IMAGE)
@@ -231,4 +231,5 @@ define archhelp
 	@echo '* uImage.gz	           - Kernel-only image for U-Boot (gzip)'
 	@echo '  uImage.bz2	           - Kernel-only image for U-Boot (bzip2)'
 	@echo '  uImage.lzma	           - Kernel-only image for U-Boot (lzma)'
+	@echo '  uImage.lzo	           - Kernel-only image for U-Boot (lzo)'
 endef
diff --git a/arch/sh/boot/Makefile b/arch/sh/boot/Makefile
@@ -21,12 +21,15 @@ CONFIG_ZERO_PAGE_OFFSET	?= 0x00001000
 CONFIG_ENTRY_OFFSET	?= 0x00001000
 
 suffix-y := bin
-suffix-$(CONFIG_KERNEL_GZIP)  := gz
-suffix-$(CONFIG_KERNEL_BZIP2) := bz2
-suffix-$(CONFIG_KERNEL_LZMA)  := lzma
-
-targets := zImage vmlinux.srec romImage uImage uImage.srec uImage.gz uImage.bz2 uImage.lzma uImage.bin
-extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma
+suffix-$(CONFIG_KERNEL_GZIP)	:= gz
+suffix-$(CONFIG_KERNEL_BZIP2)	:= bz2
+suffix-$(CONFIG_KERNEL_LZMA)	:= lzma
+suffix-$(CONFIG_KERNEL_LZO)	:= lzo
+
+targets := zImage vmlinux.srec romImage uImage uImage.srec uImage.gz \
+	   uImage.bz2 uImage.lzma uImage.lzo uImage.bin
+extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
+	   vmlinux.bin.lzo
 subdir- := compressed romimage
 
 $(obj)/zImage: $(obj)/compressed/vmlinux FORCE
@@ -80,6 +83,9 @@ $(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
 $(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,lzma)
 
+$(obj)/vmlinux.bin.lzo: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,lzo)
+
 $(obj)/uImage.bz2: $(obj)/vmlinux.bin.bz2
 	$(call if_changed,uimage,bzip2)
 
@@ -89,6 +95,9 @@ $(obj)/uImage.gz: $(obj)/vmlinux.bin.gz
 $(obj)/uImage.lzma: $(obj)/vmlinux.bin.lzma
 	$(call if_changed,uimage,lzma)
 
+$(obj)/uImage.lzo: $(obj)/vmlinux.bin.lzo
+	$(call if_changed,uimage,lzo)
+
 $(obj)/uImage.bin: $(obj)/vmlinux.bin
 	$(call if_changed,uimage,none)
 

diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile
@@ -6,6 +6,7 @@
 
 targets		:= vmlinux vmlinux.bin vmlinux.bin.gz \
 		   vmlinux.bin.bz2 vmlinux.bin.lzma \
+		   vmlinux.bin.lzo \
 		   head_$(BITS).o misc.o piggy.o
 
 OBJECTS = $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/cache.o
@@ -47,6 +48,8 @@ $(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
 	$(call if_changed,bzip2)
 $(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
 	$(call if_changed,lzma)
+$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE
+	$(call if_changed,lzo)
 
 OBJCOPYFLAGS += -R .empty_zero_page
 

diff --git a/arch/sh/boot/compressed/misc.c b/arch/sh/boot/compressed/misc.c
@@ -62,6 +62,10 @@ static unsigned long free_mem_end_ptr;
 #include "../../../../lib/decompress_unlzma.c"
 #endif
 
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
 #ifdef CONFIG_SH_STANDARD_BIOS
 size_t strlen(const char *s)
 {