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Message-Id: <20240312-gcc-plugins-gmp-v1-1-c5e082437b9e@linutronix.de> Date: Tue, 12 Mar 2024 16:03:29 +0100 From: Thomas Weißschuh <thomas.weissschuh@...utronix.de> To: Kees Cook <keescook@...omium.org>, Masahiro Yamada <masahiroy@...nel.org> Cc: linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org, Thomas Weißschuh <thomas.weissschuh@...utronix.de> Subject: [PATCH 1/2] kbuild: add host-cc-option helper This helper works the same as cc-option but for the host compiler. It will be used by the gcc-plugins configuration to check for the gmp.h header. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de> --- scripts/Kconfig.include | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include index 3ee8ecfb8c04..84368e23b072 100644 --- a/scripts/Kconfig.include +++ b/scripts/Kconfig.include @@ -27,6 +27,10 @@ failure = $(if-success,$(1),n,y) # Return y if the compiler supports <flag>, n otherwise cc-option = $(success,trap "rm -rf .tmp_$$" EXIT; mkdir .tmp_$$; $(CC) -Werror $(CLANG_FLAGS) $(1) -c -x c /dev/null -o .tmp_$$/tmp.o) +# $(host-cc-option,<flag>) +# Return y if the host compiler supports <flag>, n otherwise +host-cc-option = $(success,trap "rm -rf .tmp_$$" EXIT; mkdir .tmp_$$; $(HOSTCC) -Werror $(HOSTCFLAGS) $(1) -c -x c /dev/null -o .tmp_$$/tmp.o) + # $(ld-option,<flag>) # Return y if the linker supports <flag>, n otherwise ld-option = $(success,$(LD) -v $(1)) -- 2.44.0
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