From patchwork Mon Jan 17 01:06:51 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerald Pfeifer X-Patchwork-Id: 79111 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) by ozlabs.org (Postfix) with SMTP id E35A7B6EED for ; Mon, 17 Jan 2011 12:07:10 +1100 (EST) Received: (qmail 16582 invoked by alias); 17 Jan 2011 01:07:07 -0000 Received: (qmail 16525 invoked by uid 22791); 17 Jan 2011 01:07:06 -0000 X-SWARE-Spam-Status: No, hits=-1.9 required=5.0 tests=AWL, BAYES_00, RCVD_IN_DNSWL_LOW, SPF_SOFTFAIL, TW_GD X-Spam-Check-By: sourceware.org Received: from relay03.pair.com (HELO relay03.pair.com) (209.68.5.17) by sourceware.org (qpsmtpd/0.43rc1) with SMTP; Mon, 17 Jan 2011 01:07:00 +0000 Received: (qmail 39303 invoked from network); 17 Jan 2011 01:06:53 -0000 Received: from 109.84.176.6 (HELO ip-109-84-176-6.web.vodafone.de) (109.84.176.6) by relay03.pair.com with SMTP; 17 Jan 2011 01:06:53 -0000 X-pair-Authenticated: 109.84.176.6 Date: Mon, 17 Jan 2011 02:06:51 +0100 (CET) From: Gerald Pfeifer To: gcc-patches@gcc.gnu.org Subject: [wwwdocs] gcc-4.5/changes.html -- minor tweak around debug information Message-ID: MIME-Version: 1.0 X-IsSubscribed: yes Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Delivered-To: mailing list gcc-patches@gcc.gnu.org Something I had ment to commit a while ago... Done now. Gerald Index: changes.html =================================================================== RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.5/changes.html,v retrieving revision 1.97 diff -u -r1.97 changes.html --- changes.html 16 Dec 2010 12:04:48 -0000 1.97 +++ changes.html 17 Jan 2011 01:04:56 -0000 @@ -58,14 +58,14 @@ Note that code tuned for Itanium2 should also run correctly on Itanium1.
  • GCC now generates unwind info also for epilogues. DWARF debuginfo - generated by GCC now uses more features of DWARF3 than it used to - do and also some DWARF4 features. GDB older than 7.0 is not able to + generated by GCC now uses more features of DWARF3 than before, and + also some DWARF4 features. GDB older than 7.0 is not able to handle either of these, so to debug GCC 4.5 generated binaries or libraries GDB 7.0 or later is needed. You can disable use of DWARF4 - features with -gdwarf-3 -gstrict-dwarf options, or with - -gdwarf-2 -gstrict-dwarf restrict GCC to just DWARF2 - standard, but epilogue unwind info is emitted unconditionally whenever - unwind info is emitted.
    • + features with the -gdwarf-3 -gstrict-dwarf options, or + use -gdwarf-2 -gstrict-dwarf to restrict GCC to just + DWARF2, but epilogue unwind info is emitted unconditionally whenever + unwind info is emitted.
  • On x86 targets, code containing floating-point calculations may run significantly slower when compiled with GCC 4.5 in strict C99