From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 66755 invoked by alias); 12 Dec 2017 13:51:38 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Received: (qmail 66735 invoked by uid 89); 12 Dec 2017 13:51:37 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.0 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,SPF_PASS,URIBL_RED autolearn=ham version=3.3.2 spammy= X-HELO: relay1.mentorg.com Date: Tue, 12 Dec 2017 13:51:00 -0000 From: Joseph Myers To: Adhemerval Zanella CC: Subject: Re: [PATCH 08/19] nptl: arm: Fix Race conditions in pthread cancellation (BZ#12683) In-Reply-To: <3ba66158-2eb1-029c-305f-725a7bebd275@linaro.org> Message-ID: References: <1513019223-7603-1-git-send-email-adhemerval.zanella@linaro.org> <1513019223-7603-9-git-send-email-adhemerval.zanella@linaro.org> <3ba66158-2eb1-029c-305f-725a7bebd275@linaro.org> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" X-ClientProxiedBy: svr-ies-mbx-01.mgc.mentorg.com (139.181.222.1) To svr-ies-mbx-01.mgc.mentorg.com (139.181.222.1) X-SW-Source: 2017-12/txt/msg00365.txt.bz2 On Tue, 12 Dec 2017, Adhemerval Zanella wrote: > So I am not sure we need all the CFI directives to enable cancellation work > on ARM (at least current syscall wrappers which use C version of > {INLINE,INTERNAL}_SYSCALL are not generating them). The cfi_* on ARM are for debugging, not for cancellation (and so to get corresponding output from the compiler you'd need to compile with -g). ARM uses ".cfi_sections .debug_frame". -- Joseph S. Myers joseph@codesourcery.com