[PATCH] arm64: enable more compressed Image formats
Olof Johansson
olof at lixom.net
Thu Jul 16 11:04:12 PDT 2015
Plumb up Makefile arguments for the already supported formats in the kbuild
system: lz4, bzip2, lzma, and lzo.
Note that just as with Image.gz, these images are not self-decompressing and
the booting firmware still needs to handle decompression before launching the
kernel image.
Signed-off-by: Olof Johansson <olof at lixom.net>
---
arch/arm64/Makefile | 2 +-
arch/arm64/boot/Makefile | 12 ++++++++++++
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 4d2a925998f9..435618941c24 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -58,7 +58,7 @@ all: $(KBUILD_IMAGE) $(KBUILD_DTBS)
boot := arch/arm64/boot
-Image Image.gz: vmlinux
+Image Image.%: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
zinstall install: vmlinux
diff --git a/arch/arm64/boot/Makefile b/arch/arm64/boot/Makefile
index 5a0e3ab854a5..abcbba2f01ba 100644
--- a/arch/arm64/boot/Makefile
+++ b/arch/arm64/boot/Makefile
@@ -19,9 +19,21 @@ targets := Image Image.gz
$(obj)/Image: vmlinux FORCE
$(call if_changed,objcopy)
+$(obj)/Image.bz2: $(obj)/Image FORCE
+ $(call if_changed,bzip2)
+
$(obj)/Image.gz: $(obj)/Image FORCE
$(call if_changed,gzip)
+$(obj)/Image.lz4: $(obj)/Image FORCE
+ $(call if_changed,lz4)
+
+$(obj)/Image.lzma: $(obj)/Image FORCE
+ $(call if_changed,lzma)
+
+$(obj)/Image.lzo: $(obj)/Image FORCE
+ $(call if_changed,lzo)
+
install: $(obj)/Image
$(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
$(obj)/Image System.map "$(INSTALL_PATH)"
--
2.0.1.473.gc4d58ca
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