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Message-Id: <1393376923-21892-3-git-send-email-behanw@converseincode.com> Date: Tue, 25 Feb 2014 17:08:40 -0800 From: behanw@...verseincode.com To: mmarek@...e.cz, tglx@...utronix.de, mingo@...hat.com, hpa@...or.com, x86@...nel.org, sparse@...isli.org Cc: linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org, linux-sparse@...r.kernel.org, torvalds@...ux-foundation.org, dwmw2@...radead.org, pageexec@...email.hu, Jan-Simon Möller <dl9pf@....de>, Behan Webster <behanw@...verseincode.com>, Mark Charlebois <mcharleb@...il.com> Subject: [PATCH 2/5] kbuild: LLVMLinux: Adapt warnings for compilation with clang From: Jan-Simon Möller <dl9pf@....de> When compiling kernel with clang, disable warnings which are too noisy, and add the clang flag catch-undefined-behavior. Signed-off-by: Jan-Simon Möller <dl9pf@....de> Signed-off-by: Behan Webster <behanw@...verseincode.com> Signed-off-by: Mark Charlebois <mcharleb@...il.com> Cc: PaX Team <pageexec@...email.hu> --- scripts/Makefile.build | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/scripts/Makefile.build b/scripts/Makefile.build index d5d859c..27c4098 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -65,12 +65,23 @@ warning- := $(empty) warning-1 := -Wextra -Wunused -Wno-unused-parameter warning-1 += -Wmissing-declarations warning-1 += -Wmissing-format-attribute -warning-1 += -Wmissing-prototypes +warning-1 += $(call cc-option, -Wmissing-prototypes) warning-1 += -Wold-style-definition warning-1 += $(call cc-option, -Wmissing-include-dirs) warning-1 += $(call cc-option, -Wunused-but-set-variable) warning-1 += $(call cc-disable-warning, missing-field-initializers) +# Clang +warning-1 += $(call cc-disable-warning, initializer-overrides) +warning-1 += $(call cc-disable-warning, unused-value) +warning-1 += $(call cc-disable-warning, format) +warning-1 += $(call cc-disable-warning, unknown-warning-option) +warning-1 += $(call cc-disable-warning, self-assign) +warning-1 += $(call cc-disable-warning, sign-compare) +warning-1 += $(call cc-disable-warning, format-zero-length) +warning-1 += $(call cc-disable-warning, uninitialized) +warning-1 += $(call cc-option, -fcatch-undefined-behavior) + warning-2 := -Waggregate-return warning-2 += -Wcast-align warning-2 += -Wdisabled-optimization -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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