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arm64: enable more compressed Image formats

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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@lixom.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Olof Johansson 2015-07-16 21:26:16 +01:00 committed by Will Deacon
parent 2f4b829c62
commit 0723c05fb7
2 changed files with 16 additions and 1 deletions
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5
arch/arm64/Makefile
View File

@ -58,7 +58,10 @@ all: $(KBUILD_IMAGE) $(KBUILD_DTBS)
boot := arch/arm64/boot
Image Image.gz: vmlinux
Image: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
Image.%: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
zinstall install: vmlinux

12
arch/arm64/boot/Makefile
View File

@ -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)"