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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-02-22 16:54:53 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-03-03 19:07:13 -0300 |
| commit | 3337e682d9f3043bb0b925d976558ed5c41b0a09 (patch) | |
| tree | 5b9979002444a6fef5fd59372f0b5ee80f2b3345 /tools/scripts | |
| parent | 4900653829175f60356efc279695bb23c59483c3 (diff) | |
| download | lwn-3337e682d9f3043bb0b925d976558ed5c41b0a09.tar.gz lwn-3337e682d9f3043bb0b925d976558ed5c41b0a09.zip | |
tools arch x86: Include asm/cmpxchg.h
Will be included from atomic.h and used in refcount.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Elena Reshetova <elena.reshetova@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-pzrydfee75mhq64kazxmf9it@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/scripts')
| -rw-r--r-- | tools/scripts/Makefile.include | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include index 621578aa12d6..fc74db62fef4 100644 --- a/tools/scripts/Makefile.include +++ b/tools/scripts/Makefile.include @@ -43,6 +43,15 @@ ifneq ($(CC), clang) EXTRA_WARNINGS += -Wstrict-aliasing=3 endif +# Hack to avoid type-punned warnings on old systems such as RHEL5: +# We should be changing CFLAGS and checking gcc version, but this +# will do for now and keep the above -Wstrict-aliasing=3 in place +# in newer systems. +# Needed for the __raw_cmpxchg in tools/arch/x86/include/asm/cmpxchg.h +ifneq ($(filter 3.%,$(MAKE_VERSION)),) # make-3 +EXTRA_WARNINGS += -fno-strict-aliasing +endif + ifneq ($(findstring $(MAKEFLAGS), w),w) PRINT_DIR = --no-print-directory else |