kbuild: clang: do not use CROSS_COMPILE for target triple

The target triple is overridden by the user-supplied CROSS_COMPILE,
but I do not see a good reason to support it. Users can use a new
architecture without adding CLANG_TARGET_FLAGS_*, but that would be
a rare case.

Use the hard-coded and deterministic target triple all the time.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>

diff --git a/scripts/Makefile.clang b/scripts/Makefile.clang
index 70b354fa1cb4c96b425f823acdb0e579c5db645b..9076cc939e8740bbfd0c51e958f48929213c48f5 100644 (file)
--- a/scripts/Makefile.clang
+++ b/scripts/Makefile.clang
@@ -13,15 +13,11 @@ CLANG_TARGET_FLAGS_x86              := x86_64-linux-gnu
 CLANG_TARGET_FLAGS_um          := $(CLANG_TARGET_FLAGS_$(SUBARCH))
 CLANG_TARGET_FLAGS             := $(CLANG_TARGET_FLAGS_$(SRCARCH))
 
-ifeq ($(CROSS_COMPILE),)
 ifeq ($(CLANG_TARGET_FLAGS),)
-$(error Specify CROSS_COMPILE or add '--target=' option to scripts/Makefile.clang)
+$(error add '--target=' option to scripts/Makefile.clang)
 else
 CLANG_FLAGS    += --target=$(CLANG_TARGET_FLAGS)
-endif # CLANG_TARGET_FLAGS
-else
-CLANG_FLAGS    += --target=$(notdir $(CROSS_COMPILE:%-=%))
-endif # CROSS_COMPILE
+endif
 
 ifeq ($(LLVM_IAS),0)
 CLANG_FLAGS    += -fno-integrated-as