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From: Andrey Konovalov <andreyknvl@google.com>
To: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>,
	Michal Marek <michal.lkml@markovi.net>,
	Alexander Potapenko <glider@google.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	linux-kbuild@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
	kasan-dev <kasan-dev@googlegroups.com>,
	Kostya Serebryany <kcc@google.com>,
	Evgeniy Stepanov <eugenis@google.com>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Stephen Hines <srhines@google.com>,
	Pirama Arumuga Nainar <pirama@google.com>,
	Manoj Gupta <manojgupta@google.com>,
	Greg Hackmann <ghackmann@google.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] kasan: don't emit builtin calls when sanitization is off
Date: Fri, 19 Jan 2018 18:58:45 +0100	[thread overview]
Message-ID: <CAAeHK+yDWfAcdN2=THQFsfXHh2bKZ8QUDiOWKGc6weX3zpkPgw@mail.gmail.com> (raw)
In-Reply-To: <20516c34-7826-e07a-cda6-6228776ebee6@virtuozzo.com>

On Fri, Jan 19, 2018 at 4:57 PM, Andrey Ryabinin
<aryabinin@virtuozzo.com> wrote:
>
>
> On 01/19/2018 05:54 PM, Andrey Konovalov wrote:
>
>> diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan
>> index dbbd4382f15a..db473309f136 100644
>> --- a/scripts/Makefile.kasan
>> +++ b/scripts/Makefile.kasan
>> @@ -39,4 +39,7 @@ else
>>  endif
>>
>>  CFLAGS_KASAN += $(call cc-option, -fsanitize-address-use-after-scope)
>> +
>> +CFLAGS_KASAN_NOSANITIZE := $(call cc-option, -fno-builtin)
>> +
>
> I think it should be fine to drop cc-option here. Even ancient versions of GCC have -fno-builtin.
>

Mailed v2.

Thanks!

      reply	other threads:[~2018-01-19 17:58 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-19 14:54 [PATCH] kasan: don't emit builtin calls when sanitization is off Andrey Konovalov
2018-01-19 15:57 ` Andrey Ryabinin
2018-01-19 17:58   ` Andrey Konovalov [this message]

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