diff options
| author | Greg Hackmann <ghackmann@google.com> | 2017-04-10 11:23:25 -0700 |
|---|---|---|
| committer | Greg Hackmann <ghackmann@google.com> | 2017-10-16 15:00:12 -0700 |
| commit | 20ea95166e628343b388139f1b521c50f5fd0b44 (patch) | |
| tree | d8a09a88205e5aaf9de30c655cfa0dab88fe1d05 | |
| parent | f0907aa15ed9f9c7541bb244ed3f52c376ced19c (diff) | |
ANDROID: HACK: arm64: use -mno-implicit-float instead of -mgeneral-regs-only
LLVM bug 30792 causes clang's AArch64 backend to crash compiling
arch/arm64/crypto/aes-ce-cipher.c. Replacing -mgeneral-regs-only with
-mno-implicit-float is the suggested workaround.
Drop this patch once the clang bug has been fixed.
Change-Id: I7c7bb9315a281970698120a6d2a9fcd126aad65e
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
| -rw-r--r-- | arch/arm64/Makefile | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index 98c69f13cb09..c3bc092fc128 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -30,7 +30,14 @@ $(warning LSE atomics not supported by binutils) endif endif -KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) +ifeq ($(cc-name),clang) +# This is a workaround for https://bugs.llvm.org/show_bug.cgi?id=30792. +# TODO: revert when this is fixed in LLVM. +KBUILD_CFLAGS += -mno-implicit-float +else +KBUILD_CFLAGS += -mgeneral-regs-only +endif +KBUILD_CFLAGS += $(lseinstr) KBUILD_CFLAGS += -fno-pic KBUILD_CFLAGS += -fno-asynchronous-unwind-tables KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads) |