kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGS

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 <[email protected]> Signed-off-by: Michael Davidson <[email protected]> Signed-off-by: Matthias Kaehlcke <[email protected]> Signed-off-by: Masahiro Yamada <[email protected]>
ambv · Apr 28, 2017 · a37c45c · a37c45c
1 parent 433db3e
commit a37c45c
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/Makefile b/Makefile
@@ -708,6 +708,8 @@ 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.