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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-03-16 16:37:09 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-03-26 02:01:21 +0900 |
| commit | ce99d0bf312daf0178e640da9e3c93b773a67e7d (patch) | |
| tree | 8fe9c4fcae4fb441918f4a00133a5650d9e9ab79 /Makefile | |
| parent | bd0f98eba6840d99b791b36a01b83fc62d55235f (diff) | |
| download | lwn-ce99d0bf312daf0178e640da9e3c93b773a67e7d.tar.gz lwn-ce99d0bf312daf0178e640da9e3c93b773a67e7d.zip | |
kbuild: clear LDFLAGS in the top Makefile
Currently LDFLAGS is not cleared, so same flags are accumulated in
LDFLAGS when the top Makefile is recursively invoked.
I found unneeded rebuild for ARCH=arm64 when CONFIG_TRIM_UNUSED_KSYMS
is enabled. If include/generated/autoksyms.h is updated, the top
Makefile is recursively invoked, then arch/arm64/Makefile adds one
more '-maarch64linux'. Due to the command line change, modules are
rebuilt needlessly.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -435,6 +435,7 @@ KBUILD_CFLAGS_KERNEL := KBUILD_AFLAGS_MODULE := -DMODULE KBUILD_CFLAGS_MODULE := -DMODULE KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds +LDFLAGS := GCC_PLUGINS_CFLAGS := export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC |