commit f3fda57f6a2c45ed81c5ac89d6c5c207ba51d3b7
author Greg Hackmann <ghackmann@google.com> Tue Nov 29 12:59:14 2016 -0800
committer Bryan Huntsman <bryanh@codeaurora.org> Fri Jun 15 15:08:50 2018 -0700
tree cc85e202611743493906d20975f8802e79c7457a
parent 0489ba2a13d247a63ed5ecf08d15bc9f44012a40

ANDROID: HACK: arm64, LLVMLinux: use -mno-implicit-float

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.

Change-Id: I229c5e9cb7306391afcc1819604662db54216a99
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Git-commit: bdc3dd9f0a5cd2c3d36a95621199b4a10fa799bc
Git-repo: https://android.googlesource.com/kernel/common/
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>

arch/arm64/Makefile

diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 87f7d2f..7cb84cc 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -49,7 +49,12 @@
   endif
 endif
 
-KBUILD_CFLAGS	+= -mgeneral-regs-only $(lseinstr) $(brokengasinst)
+ifeq ($(cc-name),clang)
+KBUILD_CFLAGS	+= -mno-implicit-float
+else
+KBUILD_CFLAGS	+= -mgeneral-regs-only
+endif
+KBUILD_CFLAGS	+= $(lseinstr) $(brokengasinst)
 KBUILD_CFLAGS	+= -fno-asynchronous-unwind-tables
 KBUILD_AFLAGS	+= $(lseinstr) $(brokengasinst)