Subject: [PATCH 8/9] powerpc/boot: Set target when cross-compiling for clang

From: Joel Stanley <[email-masked]>
Date: Mon, 12 Nov 2018 14:51:16 +1030

commit 813af51f5d30a2da6a2523c08465f9726e51772e upstream.

Clang needs to be told which target it is building for when cross
compiling.

Link: https://github.com/ClangBuiltLinux/linux/issues/259
Signed-off-by: Joel Stanley <[email-masked]>
Tested-by: Daniel Axtens <[email-masked]> # powerpc 64-bit BE
Acked-by: Michael Ellerman <[email-masked]>
Reviewed-by: Nick Desaulniers <[email-masked]>
Signed-off-by: Masahiro Yamada <[email-masked]>
[nc: Use 'ifeq ($(cc-name),clang)' instead of 'ifdef CONFIG_CC_IS_CLANG'
     because that config does not exist in 4.14; the Kconfig rewrite
     that added that config happened in 4.18]
Signed-off-by: Nathan Chancellor <[email-masked]>
---
 arch/powerpc/boot/Makefile | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index b479926f0167..e2a5a932c24a 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -49,6 +49,11 @@ endif
 
 BOOTAFLAGS	:= -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
 
+ifeq ($(cc-name),clang)
+BOOTCFLAGS += $(CLANG_FLAGS)
+BOOTAFLAGS += $(CLANG_FLAGS)
+endif
+
 ifdef CONFIG_DEBUG_INFO
 BOOTCFLAGS	+= -g
 endif
-- 
2.20.1