aboutsummaryrefslogtreecommitdiffstats
path: root/tools/scripts
diff options
context:
space:
mode:
authorArnaldo Carvalho de Melo <acme@redhat.com>2017-02-22 16:54:53 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-03-03 19:07:13 -0300
commit3337e682d9f3043bb0b925d976558ed5c41b0a09 (patch)
tree5b9979002444a6fef5fd59372f0b5ee80f2b3345 /tools/scripts
parenttools include: Adopt __compiletime_error (diff)
downloadlinux-dev-3337e682d9f3043bb0b925d976558ed5c41b0a09.tar.xz
linux-dev-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.include9
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