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 <[email protected]> Git-commit: bdc3dd9f0a5cd2c3d36a95621199b4a10fa799bc Git-repo: https://android.googlesource.com/kernel/common/ Signed-off-by: Satya Durga Srinivasu Prabhala <[email protected]> Signed-off-by: Channagoud Kadabi <[email protected]>
vrnsoma · Jun 15, 2018 · f3fda57 · f3fda57
1 parent 0489ba2
commit f3fda57
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
@@ -49,7 +49,12 @@ $(warning Detected assembler with broken .inst; disassembly will be unreliable)
   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)