From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/8018 Path: news.gmane.org!not-for-mail From: Joseph Myers Newsgroups: gmane.linux.lib.musl.general,gmane.comp.lib.glibc.alpha,gmane.linux.ports.sh.devel Subject: Re: SH sigcontext ABI is broken Date: Wed, 24 Jun 2015 19:37:45 +0000 Message-ID: References: <20150619070912.GA15025@brightrain.aerifal.cx> <20150620180644.GY1173@brightrain.aerifal.cx> <558A3124.30701@landley.net> <20150624045224.GO1173@brightrain.aerifal.cx> <20150624181235.GU1173@brightrain.aerifal.cx> Reply-To: musl@lists.openwall.com NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" X-Trace: ger.gmane.org 1435174688 3259 80.91.229.3 (24 Jun 2015 19:38:08 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 24 Jun 2015 19:38:08 +0000 (UTC) Cc: Rob Landley , , , To: Rich Felker Original-X-From: musl-return-8031-gllmg-musl=m.gmane.org@lists.openwall.com Wed Jun 24 21:38:08 2015 Return-path: Envelope-to: gllmg-musl@m.gmane.org Original-Received: from mother.openwall.net ([195.42.179.200]) by plane.gmane.org with smtp (Exim 4.69) (envelope-from ) id 1Z7qUo-0005iM-HO for gllmg-musl@m.gmane.org; Wed, 24 Jun 2015 21:38:06 +0200 Original-Received: (qmail 26535 invoked by uid 550); 24 Jun 2015 19:38:04 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: Original-Received: (qmail 26493 invoked from network); 24 Jun 2015 19:38:03 -0000 X-X-Sender: jsm28@digraph.polyomino.org.uk In-Reply-To: <20150624181235.GU1173@brightrain.aerifal.cx> User-Agent: Alpine 2.10 (DEB 1266 2009-07-14) Xref: news.gmane.org gmane.linux.lib.musl.general:8018 gmane.comp.lib.glibc.alpha:52636 gmane.linux.ports.sh.devel:46772 Archived-At: On Wed, 24 Jun 2015, Rich Felker wrote: > On Wed, Jun 24, 2015 at 02:10:06PM +0000, Joseph Myers wrote: > > On Wed, 24 Jun 2015, Rich Felker wrote: > > > > > Nominally SH3 support remains in both the kernel and glibc. If it can > > > be established that multiple parties agree that there's really no one > > > left who cares about the old no-FPU sigcontext ABI on SH3, I will be > > > all for dropping it and unifying sigcontext. > > > > Note that right now we have BE and LE versions of *three* ABIs for SH in > > glibc (SH3 soft-float, SH4 soft-float, SH4 hard-float) (and as noted in > > this discussion, right now each would only work properly on a kernel with > > the corresponding configuration). See > > . > > Is your understanding that SH4 soft-float is using the SH4 ucontext_t > layout? I don't think it's even working at all. Glibc uses the layout My understanding is what Kaz affirmed in . It's entirely possible there are bugs (including regressions) in this area; if so, they should be filed in Bugzilla. -- Joseph S. Myers joseph@codesourcery.com