From patchwork Wed Aug 23 16:02:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Wakely X-Patchwork-Id: 1824799 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.a=rsa-sha256 header.s=default header.b=WErcmkpt; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=server2.sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=patchwork.ozlabs.org) Received: from server2.sourceware.org (server2.sourceware.org [IPv6:2620:52:3:1:0:246e:9693:128c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RW9xj1ftlz1ybW for ; Thu, 24 Aug 2023 02:03:53 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 18F163853D25 for ; Wed, 23 Aug 2023 16:03:51 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 18F163853D25 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1692806631; bh=iyIijerVBQ9x2b2LCJnGXzG8kipdzd9p5JWc7/E4gYQ=; h=To:Subject:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=WErcmkptJjhg64NH2OlqLpZ+rKu6aBDpa6tCsUAg/0HZG8mpd70RW9P9qgsFJ4GKs jvIx+1WF+xD9Vi/s/7sVgii+BM5/LbuVukqUJElyge7taRPT+6VtKPCIkGFNWf9QHU zvNrXhkK8XMKROjDpQeRz6uvxrsg2qzi6/HCTP9g= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id D77193858401 for ; Wed, 23 Aug 2023 16:03:24 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org D77193858401 Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-618-Yy59iPgMN_CxaljyKbW_Mw-1; Wed, 23 Aug 2023 12:03:23 -0400 X-MC-Unique: Yy59iPgMN_CxaljyKbW_Mw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id CA5A0853065; Wed, 23 Aug 2023 16:03:22 +0000 (UTC) Received: from localhost (unknown [10.42.28.204]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8FC4B2166B26; Wed, 23 Aug 2023 16:03:22 +0000 (UTC) To: libstdc++@gcc.gnu.org, gcc-patches@gcc.gnu.org Subject: [RFC] libstdc++: Make --enable-libstdcxx-backtrace=auto default to yes Date: Wed, 23 Aug 2023 17:02:05 +0100 Message-ID: <20230823160322.237140-1-jwakely@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-11.8 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Jonathan Wakely via Gcc-patches From: Jonathan Wakely Reply-To: Jonathan Wakely Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" Any objections to this? It's a C++23 feture, so should be enabled by default. -- >8 -- This causes libstdc++_libbacktrace.a to be built by default. This might fail on some targets, in which case we can make the 'auto' choice expand to either 'yes' or 'no' depending on the target. libstdc++-v3/ChangeLog: * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Default to yes. * configure: Regenerate. --- libstdc++-v3/acinclude.m4 | 2 +- libstdc++-v3/configure | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4 index b25378eaace..50c808c6b2d 100644 --- a/libstdc++-v3/acinclude.m4 +++ b/libstdc++-v3/acinclude.m4 @@ -5481,7 +5481,7 @@ BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DBACKTRACE_ELF_SIZE=$elfsize" AC_MSG_CHECKING([whether to build libbacktrace support]) if test "$enable_libstdcxx_backtrace" = "auto"; then - enable_libstdcxx_backtrace=no + enable_libstdcxx_backtrace=yes fi AC_MSG_RESULT($enable_libstdcxx_backtrace) if test "$enable_libstdcxx_backtrace" = "yes"; then