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authorAtish Patra <atish.patra@wdc.com>2019-11-06 01:06:52 +0100
committerPaul Walmsley <paul.walmsley@sifive.com>2019-11-12 21:04:52 +0100
commit8083c629dc318c3191d06fcb226528b08ae2acdd (patch)
tree61cd5897c4cbbb7e208ebc4be84ccb6a0c74dc43
parentriscv: clean up the macro format in each header file (diff)
downloadlinux-8083c629dc318c3191d06fcb226528b08ae2acdd.tar.xz
linux-8083c629dc318c3191d06fcb226528b08ae2acdd.zip
RISC-V: Add multiple compression image format.
Currently, there is only support for .gz compression type for generating kernel Image. Add support for other compression methods(lzma, lz4, lzo, bzip2) that helps in generating a even smaller kernel image. Image.gz will still be the default compressed image. Signed-off-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
-rw-r--r--arch/riscv/boot/Makefile12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/riscv/boot/Makefile b/arch/riscv/boot/Makefile
index 0990a9fdbe5d..88356650c992 100644
--- a/arch/riscv/boot/Makefile
+++ b/arch/riscv/boot/Makefile
@@ -24,6 +24,18 @@ $(obj)/Image: vmlinux FORCE
$(obj)/Image.gz: $(obj)/Image FORCE
$(call if_changed,gzip)
+$(obj)/Image.bz2: $(obj)/Image FORCE
+ $(call if_changed,bzip2)
+
+$(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:
$(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
$(obj)/Image System.map "$(INSTALL_PATH)"