Merge tag 'kbuild-fixes-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Masahiro writes: "Kbuild fixes for v4.19 (2nd) - Fix warnings from recordmcount.pl when building with Clang - Allow Clang to use GNU toolchains correctly - Disable CONFIG_SAMPLES for UML to avoid build error" * tag 'kbuild-fixes-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: samples: disable CONFIG_SAMPLES for UML kbuild: allow to use GCC toolchain not in Clang search path ftrace: Build with CPPFLAGS to get -Qunused-arguments
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8
Makefile
8
Makefile
@@ -483,13 +483,15 @@ endif
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ifeq ($(cc-name),clang)
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ifeq ($(cc-name),clang)
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ifneq ($(CROSS_COMPILE),)
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ifneq ($(CROSS_COMPILE),)
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CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%))
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CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%))
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GCC_TOOLCHAIN := $(realpath $(dir $(shell which $(LD)))/..)
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GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
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CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR)
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GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..)
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endif
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endif
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ifneq ($(GCC_TOOLCHAIN),)
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ifneq ($(GCC_TOOLCHAIN),)
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CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN)
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CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN)
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endif
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endif
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KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
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KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
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KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
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KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
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KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
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KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
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KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
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KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
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endif
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endif
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@@ -1,5 +1,6 @@
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menuconfig SAMPLES
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menuconfig SAMPLES
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bool "Sample kernel code"
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bool "Sample kernel code"
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depends on !UML
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help
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help
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You can build and test sample kernel code here.
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You can build and test sample kernel code here.
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@@ -219,7 +219,7 @@ else
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sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
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sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
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"$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
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"$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
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"$(if $(CONFIG_64BIT),64,32)" \
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"$(if $(CONFIG_64BIT),64,32)" \
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"$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CFLAGS)" \
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"$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)" \
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"$(LD) $(KBUILD_LDFLAGS)" "$(NM)" "$(RM)" "$(MV)" \
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"$(LD) $(KBUILD_LDFLAGS)" "$(NM)" "$(RM)" "$(MV)" \
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"$(if $(part-of-module),1,0)" "$(@)";
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"$(if $(part-of-module),1,0)" "$(@)";
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recordmcount_source := $(srctree)/scripts/recordmcount.pl
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recordmcount_source := $(srctree)/scripts/recordmcount.pl
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