From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22767 invoked by alias); 27 Sep 2007 18:22:04 -0000 Received: (qmail 22751 invoked by uid 22791); 27 Sep 2007 18:22:03 -0000 X-Spam-Status: No, hits=-2.4 required=5.0 tests=AWL,BAYES_00,DK_POLICY_SIGNSOME,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (66.187.233.31) by sourceware.org (qpsmtpd/0.31) with ESMTP; Thu, 27 Sep 2007 18:22:02 +0000 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.13.1/8.13.1) with ESMTP id l8RILxnL013487 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 27 Sep 2007 14:21:59 -0400 Received: from pobox.toronto.redhat.com (pobox.toronto.redhat.com [172.16.14.4]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id l8RILxWe006777; Thu, 27 Sep 2007 14:21:59 -0400 Received: from touchme.toronto.redhat.com (IDENT:postfix@touchme.toronto.redhat.com [172.16.14.9]) by pobox.toronto.redhat.com (8.12.11.20060308/8.12.11) with ESMTP id l8RILwVg003860; Thu, 27 Sep 2007 14:21:58 -0400 Received: from ton.toronto.redhat.com (ton.toronto.redhat.com [172.16.14.15]) by touchme.toronto.redhat.com (Postfix) with ESMTP id AA2228001FF; Thu, 27 Sep 2007 14:21:58 -0400 (EDT) Received: from ton.toronto.redhat.com (localhost.localdomain [127.0.0.1]) by ton.toronto.redhat.com (8.13.1/8.13.1) with ESMTP id l8RILwNT019854; Thu, 27 Sep 2007 14:21:58 -0400 Received: (from fche@localhost) by ton.toronto.redhat.com (8.13.1/8.13.1/Submit) id l8RILwJc019853; Thu, 27 Sep 2007 14:21:58 -0400 Date: Thu, 27 Sep 2007 21:54:00 -0000 From: "Frank Ch. Eigler" To: Martin Hunt Cc: systemtap@sources.redhat.com Subject: aux-syscalls change Message-ID: <20070927182158.GA19691@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.1i Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2007-q3/txt/msg00731.txt.bz2 Hi - I am a bit surprised by the subject patch (commit fd6324c). Amongst its effects is to always include these lookup tables in a generated object code, if any other part of aux_syscalls is being called. Algorithmically, it replaces a linear sequence of script if/thens with a C linear search. What aspect of the previous code did you deem unacceptable? Why not just use ordinary script-level lookup tables instead of yet more C code? - FChE