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authorMichael Davidson <md@google.com>2017-04-25 15:47:35 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-11-27 16:07:57 +0100
commit3ebd7941d0bdc85ebfc6eaa58fbf53e0f26e00e3 (patch)
tree6ac05e7355df750569631b20730e5b5ef7d24948 /Makefile
parentcbb5fc70e499b794741f431443874be6977ac539 (diff)
kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGS
commit a37c45cd82e62a361706b9688a984a3a63957321 upstream. The Linux Kernel relies on GCC's acceptance of inline assembly as an opaque object which will not have any validation performed on the content. The current behaviour in LLVM is to perform validation of the contents by means of parsing the input if the MC layer can handle it. Disable clangs integrated assembler and use the GNU assembler instead. Wording-mostly-from: Saleem Abdulrasool <compnerd@compnerd.org> Signed-off-by: Michael Davidson <md@google.com> Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile2
1 files changed, 2 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 7fedb079d7a7..0c29f97946b4 100644
--- a/Makefile
+++ b/Makefile
@@ -719,6 +719,8 @@ KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
# See modpost pattern 2
KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
+KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
+KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
else
# These warnings generated too much noise in a regular build.