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kbuild: fix duplicated flags in DEBUG_CFLAGS
Sedat Dilek noticed duplicated flags in DEBUG_CFLAGS when building deb-pkg with CONFIG_DEBUG_INFO. For example, 'make CC=clang bindeb-pkg' reproduces the issue. Kbuild recurses to the top Makefile for some targets such as package builds. With commit121c5d08d5
("kbuild: Only add -fno-var-tracking-assignments for old GCC versions") applied, DEBUG_CFLAGS is now reset only when CONFIG_CC_IS_GCC=y. Fix it to reset DEBUG_CFLAGS all the time. Fixes:121c5d08d5
("kbuild: Only add -fno-var-tracking-assignments for old GCC versions") Reported-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Mark Wielaard <mark@klomp.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org>
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Makefile
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Makefile
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@ -811,10 +811,12 @@ KBUILD_CFLAGS += -ftrivial-auto-var-init=zero
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KBUILD_CFLAGS += -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang
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endif
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DEBUG_CFLAGS :=
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# Workaround for GCC versions < 5.0
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61801
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ifdef CONFIG_CC_IS_GCC
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DEBUG_CFLAGS := $(call cc-ifversion, -lt, 0500, $(call cc-option, -fno-var-tracking-assignments))
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DEBUG_CFLAGS += $(call cc-ifversion, -lt, 0500, $(call cc-option, -fno-var-tracking-assignments))
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endif
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ifdef CONFIG_DEBUG_INFO
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