ANDROID: HACK: arm64: use -mno-implicit-float instead of -mgeneral-regs-only (e07bcf71) · Commits · e / devices / android_kernel_fairphone_FP3

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: I89fda12d826783ffe18142ba048ff10bd769e240 Signed-off-by:

Greg Hackmann <ghackmann@google.com> Signed-off-by:

Matthias Kaehlcke <mka@chromium.org>

arch/arm64/Makefile

+8 −1

Original line number	Diff line number	Diff line
		@@ -37,7 +37,14 @@ $(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-asynchronous-unwind-tables
		KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads)
		KBUILD_CFLAGS += -fno-pic