Commit 6f5b41a2 authored by Nick Desaulniers's avatar Nick Desaulniers Committed by Masahiro Yamada
Browse files

Makefile: move initial clang flag handling into scripts/Makefile.clang 



With some of the changes we'd like to make to CROSS_COMPILE, the initial
block of clang flag handling which controls things like the target triple,
whether or not to use the integrated assembler and how to find GAS,
and erroring on unknown warnings is becoming unwieldy. Move it into its
own file under scripts/.

Reviewed-by: default avatarNathan Chancellor <nathan@kernel.org>
Signed-off-by: default avatarNick Desaulniers <ndesaulniers@google.com>
Signed-off-by: default avatarMasahiro Yamada <masahiroy@kernel.org>
parent 6072b2c4

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -4501,6 +4501,7 @@ B: https://github.com/ClangBuiltLinux/linux/issues 
C:	irc://chat.freenode.net/clangbuiltlinux

F:	Documentation/kbuild/llvm.rst

F:	include/linux/compiler-clang.h

F:	scripts/Makefile.clang

F:	scripts/clang-tools/

K:	\b(?i:clang|llvm)\b
































Makefile



+1
−14






























Original line number
Diff line number
Diff line







@@ -584,20 +584,7 @@ endif







CC_VERSION_TEXT = $(subst $(pound),,$(shell LC_ALL=C $(CC) --version 2>/dev/null | head -n 1))



















ifneq ($(findstring clang,$(CC_VERSION_TEXT)),)









ifneq ($(CROSS_COMPILE),)









CLANG_FLAGS	+= --target=$(notdir $(CROSS_COMPILE:%-=%))









endif









ifeq ($(LLVM_IAS),1)









CLANG_FLAGS	+= -integrated-as









else









CLANG_FLAGS	+= -no-integrated-as









GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))









CLANG_FLAGS	+= --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))









endif









CLANG_FLAGS	+= -Werror=unknown-warning-option









KBUILD_CFLAGS	+= $(CLANG_FLAGS)









KBUILD_AFLAGS	+= $(CLANG_FLAGS)









export CLANG_FLAGS









include $(srctree)/scripts/Makefile.clang









endif



















# Include this also for config targets because some architectures need
































scripts/Makefile.clang
0 → 100644



+14
−0






























Original line number
Diff line number
Diff line









ifneq ($(CROSS_COMPILE),)









CLANG_FLAGS	+= --target=$(notdir $(CROSS_COMPILE:%-=%))









endif









ifeq ($(LLVM_IAS),1)









CLANG_FLAGS	+= -integrated-as









else









CLANG_FLAGS	+= -no-integrated-as









GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))









CLANG_FLAGS	+= --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))









endif









CLANG_FLAGS	+= -Werror=unknown-warning-option









KBUILD_CFLAGS	+= $(CLANG_FLAGS)









KBUILD_AFLAGS	+= $(CLANG_FLAGS)









export CLANG_FLAGS