From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <jakub@redhat.com>
Received: from us-smtp-delivery-124.mimecast.com
 (us-smtp-delivery-124.mimecast.com [170.10.129.124])
 by sourceware.org (Postfix) with ESMTPS id D3B0F3858400
 for <gcc@gcc.gnu.org>; Mon, 22 Nov 2021 19:21:36 +0000 (GMT)
DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org D3B0F3858400
Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com
 [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS
 (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id
 us-mta-443-uvP9BfRqMoKfRAVVfxRWYg-1; Mon, 22 Nov 2021 14:20:58 -0500
X-MC-Unique: uvP9BfRqMoKfRAVVfxRWYg-1
Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com
 [10.5.11.14])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D07DD1926DA8;
 Mon, 22 Nov 2021 19:20:55 +0000 (UTC)
Received: from tucnak.zalov.cz (unknown [10.39.192.23])
 by smtp.corp.redhat.com (Postfix) with ESMTPS id 48FC05DF5F;
 Mon, 22 Nov 2021 19:20:55 +0000 (UTC)
Received: from tucnak.zalov.cz (localhost [127.0.0.1])
 by tucnak.zalov.cz (8.16.1/8.16.1) with ESMTPS id 1AMJKqvb2576892
 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT);
 Mon, 22 Nov 2021 20:20:52 +0100
Received: (from jakub@localhost)
 by tucnak.zalov.cz (8.16.1/8.16.1/Submit) id 1AMJKpVu2576891;
 Mon, 22 Nov 2021 20:20:51 +0100
Date: Mon, 22 Nov 2021 20:20:50 +0100
From: Jakub Jelinek <jakub@redhat.com>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Martin =?utf-8?B?TGnFoWth?= <mliska@suse.cz>, gcc <gcc@gcc.gnu.org>,
 ro@gcc.gnu.org, Martin =?utf-8?B?TGnFoWth?= <marxin@gcc.gnu.org>,
 Marco Elver <elver@google.com>, Alexander Potapenko <glider@google.com>
Subject: Re: New ThreadSanitizer runtime (v3)
Message-ID: <20211122192050.GQ2646553@tucnak>
Reply-To: Jakub Jelinek <jakub@redhat.com>
References: <CACT4Y+bvVooxDChy120qBz2jaT6=HVw+e+ZtGeaxUut4ND+FNg@mail.gmail.com>
 <1b8fa4e6-7a78-cdbb-c06d-fe7cd58d1e76@suse.cz>
 <CACT4Y+YxdB9BnzGEgKuyv0uBA_cmfHMCw2JVfXojVDKeuR3Vvg@mail.gmail.com>
MIME-Version: 1.0
In-Reply-To: <CACT4Y+YxdB9BnzGEgKuyv0uBA_cmfHMCw2JVfXojVDKeuR3Vvg@mail.gmail.com>
X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14
X-Mimecast-Spam-Score: 0
X-Mimecast-Originator: redhat.com
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
X-Spam-Status: No, score=-5.7 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH,
 DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_LOW,
 RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE,
 TXREP autolearn=unavailable autolearn_force=no version=3.4.4
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on
 server2.sourceware.org
X-BeenThere: gcc@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc mailing list <gcc.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc>,
 <mailto:gcc-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc/>
List-Post: <mailto:gcc@gcc.gnu.org>
List-Help: <mailto:gcc-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc>,
 <mailto:gcc-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Mon, 22 Nov 2021 19:21:37 -0000

On Mon, Nov 22, 2021 at 08:00:38PM +0100, Dmitry Vyukov wrote:
> Not sure about gcc, but in clang the old no_sanitize_thread attribute
> disabled only part of instrumentation (only memory accesses, but not
> atomics and function entry/exit). The new attribute disables all
> instrumentation.

In gcc no_sanitize("thread") as well as no_sanitize_thread attributes
affect everything (function entry/exit, atomics and memory accesses).

	Jakub