From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2181) id 919773847813; Fri, 9 Jul 2021 14:19:45 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 919773847813 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Jonathan Wakely To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r12-2220] libstdc++: Only use __gthread_yield if gthreads is available X-Act-Checkin: gcc X-Git-Author: Matheus Castanho X-Git-Refname: refs/heads/master X-Git-Oldrev: 7802ee7b0181dcd4e4c40047d67a1b2a6cf06a57 X-Git-Newrev: 2e345e4ad6bb6595a9e3b182aa349d4f306b0921 Message-Id: <20210709141945.919773847813@sourceware.org> Date: Fri, 9 Jul 2021 14:19:45 +0000 (GMT) X-BeenThere: libstdc++-cvs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libstdc++-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Jul 2021 14:19:45 -0000 https://gcc.gnu.org/g:2e345e4ad6bb6595a9e3b182aa349d4f306b0921 commit r12-2220-g2e345e4ad6bb6595a9e3b182aa349d4f306b0921 Author: Matheus Castanho Date: Fri Jul 9 15:13:38 2021 +0100 libstdc++: Only use __gthread_yield if gthreads is available libstdc++-v3/ChangeLog: * include/std/mutex (__lock_impl): Check _GLIBCXX_HAS_GTHREADS before using __gthread_yield. Diff: --- libstdc++-v3/include/std/mutex | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libstdc++-v3/include/std/mutex b/libstdc++-v3/include/std/mutex index eeb51fdb840..7ab4ee12690 100644 --- a/libstdc++-v3/include/std/mutex +++ b/libstdc++-v3/include/std/mutex @@ -618,7 +618,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION return; } } -#ifdef _GLIBCXX_USE_SCHED_YIELD +#if defined _GLIBCXX_HAS_GTHREADS && defined _GLIBCXX_USE_SCHED_YIELD __gthread_yield(); #endif constexpr auto __n = 1 + sizeof...(_L1);