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author | Denis Efremov <efremov@linux.com> | 2020-06-05 10:39:55 +0300 |
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committer | Masahiro Yamada <masahiroy@kernel.org> | 2020-06-06 23:42:01 +0900 |
commit | 8dfb61dcbaceb19a5ded5e9c9dcf8d05acc32294 (patch) | |
tree | e533bf8292cb5973d7e21318690d417d83bcf679 /arch/m68k | |
parent | e0b250b57dcf403529081e5898a9de717f96b76b (diff) | |
download | linux-8dfb61dcbaceb19a5ded5e9c9dcf8d05acc32294.tar.gz |
kbuild: add variables for compression tools
Allow user to use alternative implementations of compression tools, such as pigz, pbzip2, pxz. For example, multi-threaded tools to speed up the build: $ make GZIP=pigz BZIP2=pbzip2 Variables _GZIP, _BZIP2, _LZOP are used internally because original env vars are reserved by the tools. The use of GZIP in gzip tool is obsolete since 2015. However, alternative implementations (e.g., pigz) still rely on it. BZIP2, BZIP, LZOP vars are not obsolescent. The credit goes to @grsecurity. As a sidenote, for multi-threaded lzma, xz compression one can use: $ export XZ_OPT="--threads=0" Signed-off-by: Denis Efremov <efremov@linux.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'arch/m68k')
-rw-r--r-- | arch/m68k/Makefile | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile index 5d9288384096..ce6db5e5a5a3 100644 --- a/arch/m68k/Makefile +++ b/arch/m68k/Makefile @@ -135,10 +135,10 @@ vmlinux.gz: vmlinux ifndef CONFIG_KGDB cp vmlinux vmlinux.tmp $(STRIP) vmlinux.tmp - gzip -9c vmlinux.tmp >vmlinux.gz + $(_GZIP) -9c vmlinux.tmp >vmlinux.gz rm vmlinux.tmp else - gzip -9c vmlinux >vmlinux.gz + $(_GZIP) -9c vmlinux >vmlinux.gz endif bzImage: vmlinux.bz2 @@ -148,10 +148,10 @@ vmlinux.bz2: vmlinux ifndef CONFIG_KGDB cp vmlinux vmlinux.tmp $(STRIP) vmlinux.tmp - bzip2 -1c vmlinux.tmp >vmlinux.bz2 + $(_BZIP2) -1c vmlinux.tmp >vmlinux.bz2 rm vmlinux.tmp else - bzip2 -1c vmlinux >vmlinux.bz2 + $(_BZIP2) -1c vmlinux >vmlinux.bz2 endif archclean: |