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From: Nathan Chancellor <natechancellor@gmail.com>
To: Masahiro Yamada <yamada.masahiro@socionext.com>,
	Michal Marek <michal.lkml@markovi.net>
Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
	clang-built-linux@googlegroups.com,
	Nick Desaulniers <ndesaulniers@google.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Nathan Chancellor <natechancellor@gmail.com>
Subject: [PATCH] Makefile: Don't try to add '-fcatch-undefined-behavior' flag
Date: Thu,  9 May 2019 04:48:25 -0700	[thread overview]
Message-ID: <20190509114824.25866-1-natechancellor@gmail.com> (raw)
In-Reply-To: <CAK7LNASpsid7_sh4rdRNSTwZ1YtW_+uH2eoarJNNUttntQZ-kg@mail.gmail.com>

This is no longer a valid option in clang, it was removed in 3.5, which
we don't support.

https://github.com/llvm/llvm-project/commit/cb3f812b6b9fab8f3b41414f24e90222170417b4

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
---

Let me know if you want this incremental to your patch. I figured it
made more sense to remove this then do the cc-option/cc-disable-warning
removal because it will simplify the commit message.

 Makefile | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Makefile b/Makefile
index d24f5a8009ee..e4788eb2c9b9 100644
--- a/Makefile
+++ b/Makefile
@@ -740,7 +740,6 @@ KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
 # See modpost pattern 2
 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
-KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
 else
 
 # These warnings generated too much noise in a regular build.
-- 
2.21.0


  parent reply	other threads:[~2019-05-09 11:49 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-09  6:44 [PATCH] kbuild: add most of Clang-specific flags unconditionally Masahiro Yamada
2019-05-09  7:06 ` Sedat Dilek
2019-05-10 13:53   ` Masahiro Yamada
2019-05-10 17:57     ` Nick Desaulniers
2019-05-09 11:15 ` Nathan Chancellor
2019-05-09 11:35   ` Masahiro Yamada
2019-05-09 11:40     ` Nathan Chancellor
2019-05-09 11:48     ` Nathan Chancellor [this message]
2019-05-09 13:33       ` [PATCH] Makefile: Don't try to add '-fcatch-undefined-behavior' flag Masahiro Yamada
2019-05-09 13:49       ` Sedat Dilek
2019-05-09 17:01         ` Nick Desaulniers
2019-05-13  2:23       ` Masahiro Yamada
2019-05-09 17:17   ` [PATCH] kbuild: add most of Clang-specific flags unconditionally Nick Desaulniers

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