From patchwork Thu Oct 1 16:33:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Weimer X-Patchwork-Id: 40613 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id E989E398B887; Thu, 1 Oct 2020 16:33:53 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E989E398B887 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1601570034; bh=Cze/LhLguodUKlPt55/auXSxv8mlLg/iAElCXvAlIPs=; h=To:Subject:In-Reply-To:References:Date:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=CUCYIdRz3M5v5tYcdny1sROMmO/+3b7vflBQonzwOlmsliulzFY76INu+S6kItuGe sjTQQL37sz4SdA2kf1ckuObfs09dDT/Fv9cDuq96l3oQ22F8HBvvTCHwu8+KTzjDVS rXV7GeQLDQAZkc1YSTndfnK+2kD3WRRjzDMIZ4XM= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [63.128.21.124]) by sourceware.org (Postfix) with ESMTP id 603CD398B887 for ; Thu, 1 Oct 2020 16:33:51 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 603CD398B887 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-372-pBDDBvr3OgqyaFvR17APJg-1; Thu, 01 Oct 2020 12:33:49 -0400 X-MC-Unique: pBDDBvr3OgqyaFvR17APJg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 64470101FFA4 for ; Thu, 1 Oct 2020 16:33:48 +0000 (UTC) Received: from oldenburg2.str.redhat.com (ovpn-114-84.ams2.redhat.com [10.36.114.84]) by smtp.corp.redhat.com (Postfix) with ESMTPS id C0BA57880A for ; Thu, 1 Oct 2020 16:33:47 +0000 (UTC) To: libc-alpha@sourceware.org Subject: [PATCH 20/28] aarch64: Add glibc-hwcaps support In-Reply-To: References: Message-Id: Date: Thu, 01 Oct 2020 18:33:45 +0200 User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-11.4 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, KAM_SHORT, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H5, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Florian Weimer via Libc-alpha From: Florian Weimer Reply-To: Florian Weimer Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" At this point, only the "atomics" subdirectory is available, for libraries built using LSE atomics. Reviewed-by: Adhemerval Zanella --- sysdeps/aarch64/dl-hwcaps-subdirs.c | 31 +++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 sysdeps/aarch64/dl-hwcaps-subdirs.c diff --git a/sysdeps/aarch64/dl-hwcaps-subdirs.c b/sysdeps/aarch64/dl-hwcaps-subdirs.c new file mode 100644 index 0000000000..fd6325024e --- /dev/null +++ b/sysdeps/aarch64/dl-hwcaps-subdirs.c @@ -0,0 +1,31 @@ +/* Architecture-specific glibc-hwcaps subdirectories. aarch64 version. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include + +const char _dl_hwcaps_subdirs[] = "atomics"; + +int32_t +_dl_hwcaps_subdirs_active (void) +{ + if (GLRO (dl_hwcap) & HWCAP_ATOMICS) + return 1; + + return 0; +}