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authorJoel Stanley <joel@jms.id.au>2018-09-17 10:37:54 +0300
committerMasahiro Yamada <yamada.masahiro@socionext.com>2018-09-19 17:53:54 +0300
commit5a4630aadb9a9525474e9ac92965829f990cb5c4 (patch)
tree0cf3aaaf7087f75c4070db8360c2b89f5a1c1334 /scripts/Makefile.build
parent11da3a7f84f19c26da6f86af878298694ede0804 (diff)
downloadlinux-5a4630aadb9a9525474e9ac92965829f990cb5c4.tar.xz
ftrace: Build with CPPFLAGS to get -Qunused-arguments
When building to record the mcount locations the kernel uses KBUILD_CFLAGS but not KBUILD_CPPFLAGS. This means it lacks -Qunused-arguments when building with clang, resulting in a lot of noisy warnings. Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'scripts/Makefile.build')
-rw-r--r--scripts/Makefile.build2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 5a2d1c9578a0..54da4b070db3 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -219,7 +219,7 @@ else
sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
"$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
"$(if $(CONFIG_64BIT),64,32)" \
- "$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CFLAGS)" \
+ "$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)" \
"$(LD) $(KBUILD_LDFLAGS)" "$(NM)" "$(RM)" "$(MV)" \
"$(if $(part-of-module),1,0)" "$(@)";
recordmcount_source := $(srctree)/scripts/recordmcount.pl