From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (from majordomo@localhost) by oss.sgi.com (8.11.2/8.11.3) id g0LJbmS04649 for linux-mips-outgoing; Mon, 21 Jan 2002 11:37:48 -0800 Received: from cygnus.com (runyon.sfbay.redhat.com [205.180.230.5] (may be forged)) by oss.sgi.com (8.11.2/8.11.3) with SMTP id g0LJbjP04619 for ; Mon, 21 Jan 2002 11:37:45 -0800 Received: from myware.mynet (fiendish.sfbay.redhat.com [205.180.231.146]) by runyon.cygnus.com (8.8.7-cygnus/8.8.7) with ESMTP id KAA18162; Mon, 21 Jan 2002 10:36:27 -0800 (PST) Received: (from drepper@localhost) by myware.mynet (8.11.6/8.11.6) id g0LIaQP24084; Mon, 21 Jan 2002 10:36:26 -0800 X-Authentication-Warning: myware.mynet: drepper set sender to drepper@redhat.com using -f To: "H . J . Lu" Cc: "Maciej W. Rozycki" , "Kevin D. Kissell" , Machida Hiroyuki , GNU C Library , linux-mips@oss.sgi.com Subject: Re: thread-ready ABIs References: <003701c1a25f$8abfc120$0deca8c0@Ulysses> <20020121102455.A27606@lucon.org> Reply-To: drepper@redhat.com (Ulrich Drepper) X-fingerprint: BE 3B 21 04 BC 77 AC F0 61 92 E4 CB AC DD B9 5A X-fingerprint: e6:49:07:36:9a:0d:b7:ba:b5:e9:06:f3:e7:e7:08:4a From: Ulrich Drepper Date: 21 Jan 2002 10:36:26 -0800 In-Reply-To: <20020121102455.A27606@lucon.org> Message-ID: User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.5 (asparagus) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linux-mips@oss.sgi.com Precedence: bulk "H . J . Lu" writes: > Ulrich, should applciations have access to thread register directly? It doesn't matter. The value isn't changed in the lifetime of a thread. So the overhead of a syscall wouldn't be too much. And protection against programs overwriting the register isn't necessary. It's the program's fault if that happens. -- ---------------. ,-. 1325 Chesapeake Terrace Ulrich Drepper \ ,-------------------' \ Sunnyvale, CA 94089 USA Red Hat `--' drepper at redhat.com `------------------------