From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-4.0 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id ACE5620248 for ; Tue, 19 Mar 2019 14:34:32 +0000 (UTC) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:references:date:in-reply-to :message-id:mime-version:content-type; q=dns; s=default; b=gnu1w 0gr0wpCOfe1YAqGSJ2jiVyUKJg9sxrgKHrYig8H946KXLpeT5yVYXC3uy6vfOM4G lT2I/yAYHCa+Otq9LFCXPadmL4rTDN5RvxGJggBNx6wNgsz7WynnLnD4ESVECHdm /zorPfYB6uBkvR0dgkqcqiBwvp1mbD/6Inmszo= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:references:date:in-reply-to :message-id:mime-version:content-type; s=default; bh=5P9Dv6kuQCl V44eA4KLwk4e5ePk=; b=IcpRkk/agEiAbUgacZ463oa8UP3D3VKA4KSvB+ROkGw tFRQ1dcpCdWBmiYQ+VH3pFV1ZZnQlocpas3fnH8hdiDOf46aRT9d9azMMUhbL+WV kzoBofwH/pxlcTef0skhnaijgaYYIVJz+UetCxqIedyGRSzkSeQdOStrFOX0cQWc = Received: (qmail 99877 invoked by alias); 19 Mar 2019 14:34:30 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Received: (qmail 99866 invoked by uid 89); 19 Mar 2019 14:34:29 -0000 Authentication-Results: sourceware.org; auth=none X-HELO: albireo.enyo.de From: Florian Weimer To: Szabolcs Nagy Cc: Joseph Myers , "libc-alpha\@sourceware.org" , nd Subject: Re: Add AArch64 HWCAPs from Linux 5.0 References: Date: Tue, 19 Mar 2019 15:34:24 +0100 In-Reply-To: (Szabolcs Nagy's message of "Tue, 19 Mar 2019 09:51:37 +0000") Message-ID: <87bm27x79r.fsf@mid.deneb.enyo.de> MIME-Version: 1.0 Content-Type: text/plain * Szabolcs Nagy: >> diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h >> b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h >> index 9a395c597f..5f50623953 100644 >> --- a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h >> +++ b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h >> @@ -51,3 +51,6 @@ >> #define HWCAP_ILRCPC (1 << 26) >> #define HWCAP_FLAGM (1 << 27) >> #define HWCAP_SSBS (1 << 28) >> +#define HWCAP_SB (1 << 29) >> +#define HWCAP_PACA (1 << 30) >> +#define HWCAP_PACG (1UL << 31) > > Note: we ran out of 32bit hwcaps, so further flags here > would not be compatible with ilp32 auxv. > > the plan is to introduce hwcap2 and keep adding flags > there, however that will require a change in ifunc > resolver abi if we want to pass down hwcap2. > i will try to come up with a fix for that in this > release cycle. Yuck. The last bit should have been used for indicating that additional IFUNC resolver information is available. 8-( Is there still a way to fix this without requiring additional ABI symbols?