From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 1679 invoked by alias); 19 Mar 2010 19:20:23 -0000 Received: (qmail 1663 invoked by uid 22791); 19 Mar 2010 19:20:21 -0000 X-SWARE-Spam-Status: No, hits=-7.3 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_HI,SPF_HELO_PASS X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 19 Mar 2010 19:20:16 +0000 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o2JJKCaX006430 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 19 Mar 2010 15:20:12 -0400 Received: from host0.dyn.jankratochvil.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o2JJK9JA012985 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 19 Mar 2010 15:20:10 -0400 Received: from host0.dyn.jankratochvil.net (localhost [127.0.0.1]) by host0.dyn.jankratochvil.net (8.14.3/8.14.3) with ESMTP id o2JJK8tC002307; Fri, 19 Mar 2010 20:20:08 +0100 Received: (from jkratoch@localhost) by host0.dyn.jankratochvil.net (8.14.3/8.14.3/Submit) id o2JJK83x002301; Fri, 19 Mar 2010 20:20:08 +0100 Date: Fri, 19 Mar 2010 19:20:00 -0000 From: Jan Kratochvil To: Ulrich Weigand Cc: gdb-patches@sourceware.org Subject: [patch-testcase] Re: [rfc] Work around buggy GCC 4.1 namespace dwarf info (GCC PR c++/28460) Message-ID: <20100319192008.GA1980@host0.dyn.jankratochvil.net> References: <201003191237.o2JCbBAr020607@d12av02.megacenter.de.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201003191237.o2JCbBAr020607@d12av02.megacenter.de.ibm.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-IsSubscribed: yes Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2010-03/txt/msg00738.txt.bz2 Hi, this problem was fixed before at: [expr-cumulative] Fix namespace regression for G++-4.1 http://sourceware.org/ml/archer/2009-q4/msg00124.html (and before at [patch by Michael Matz] Re: archer gdb and gcc 4.1 globalnamespace DIE http://sourceware.org/ml/archer/2009-q2/msg00089.html ) but at least reposting the testcase from it here. OK to apply with Ulrich Weigand's patch? Thanks, Jan gdb/testsuite/ 2009-12-20 Jan Kratochvil * gdb.dwarf2/dw2-empty-namespace.exp, gdb.dwarf2/dw2-empty-namespace.S: New. --- /dev/null +++ b/gdb/testsuite/gdb.dwarf2/dw2-empty-namespace.S @@ -0,0 +1,108 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2010 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +/* Test G++ 4.1 producing DW_TAG_namespace with DW_AT_name "::". */ + + .data +var: .4byte 1 + + .section .debug_info +.Lcu1_begin: + /* CU header */ + .4byte .Lcu1_end - .Lcu1_start /* Length of Compilation Unit */ +.Lcu1_start: + .2byte 2 /* DWARF Version */ + .4byte .Labbrev1_begin /* Offset into abbrev section */ + .byte 4 /* Pointer size */ + + /* CU die */ + .uleb128 1 /* Abbrev: DW_TAG_compile_unit */ + .ascii "file1.txt\0" /* DW_AT_name */ + .ascii "GNU C 3.3.3\0" /* DW_AT_producer */ + .byte 4 /* DW_LANG_C_plus_plus (C++) */ + +.Ltype_int: + .uleb128 2 /* Abbrev: DW_TAG_base_type */ + .ascii "int\0" /* DW_AT_name */ + .byte 4 /* DW_AT_byte_size */ + .byte 5 /* DW_AT_encoding */ + + .uleb128 3 /* Abbrev: DW_TAG_namespace */ + .ascii "::\0" /* DW_AT_name */ + + .uleb128 7 /* Abbrev: DW_TAG_variable (location) */ + .ascii "var\0" /* DW_AT_name */ + .byte 2f - 1f /* DW_AT_location */ +1: .byte 3 /* DW_OP_addr */ + .4byte var /* */ +2: .4byte .Ltype_int-.Lcu1_begin /* DW_AT_type */ + + .byte 0 /* End of children of DW_TAG_namespace */ + + .byte 0 /* End of children of CU */ + +.Lcu1_end: + +/* Abbrev table */ + .section .debug_abbrev +.Labbrev1_begin: + .uleb128 1 /* Abbrev code */ + .uleb128 0x11 /* DW_TAG_compile_unit */ + .byte 1 /* has_children */ + .uleb128 0x3 /* DW_AT_name */ + .uleb128 0x8 /* DW_FORM_string */ + .uleb128 0x25 /* DW_AT_producer */ + .uleb128 0x8 /* DW_FORM_string */ + .uleb128 0x13 /* DW_AT_language */ + .uleb128 0xb /* DW_FORM_data1 */ + .byte 0x0 /* Terminator */ + .byte 0x0 /* Terminator */ + + .uleb128 2 /* Abbrev code */ + .uleb128 0x24 /* DW_TAG_base_type */ + .byte 0 /* has_children */ + .uleb128 0x3 /* DW_AT_name */ + .uleb128 0x8 /* DW_FORM_string */ + .uleb128 0xb /* DW_AT_byte_size */ + .uleb128 0xb /* DW_FORM_data1 */ + .uleb128 0x3e /* DW_AT_encoding */ + .uleb128 0xb /* DW_FORM_data1 */ + .byte 0x0 /* Terminator */ + .byte 0x0 /* Terminator */ + + .uleb128 3 /* Abbrev code */ + .uleb128 0x39 /* DW_TAG_namespace */ + .byte 1 /* has_children */ + .uleb128 0x3 /* DW_AT_name */ + .uleb128 0x8 /* DW_FORM_string */ + .byte 0x0 /* Terminator */ + .byte 0x0 /* Terminator */ + + .uleb128 7 /* Abbrev code (location) */ + .uleb128 0x34 /* DW_TAG_variable */ + .byte 0 /* has_children */ + .uleb128 0x3 /* DW_AT_name */ + .uleb128 0x8 /* DW_FORM_string */ + .uleb128 0x2 /* DW_AT_location */ + .uleb128 0xa /* DW_FORM_block1 */ + .uleb128 0x49 /* DW_AT_type */ + .uleb128 0x13 /* DW_FORM_ref4 */ + .byte 0x0 /* Terminator */ + .byte 0x0 /* Terminator */ + + .byte 0x0 /* Terminator */ + .byte 0x0 /* Terminator */ --- /dev/null +++ b/gdb/testsuite/gdb.dwarf2/dw2-empty-namespace.exp @@ -0,0 +1,43 @@ +# Copyright 2010 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# Test G++ 4.1 producing DW_TAG_namespace with DW_AT_name "::". + +# This test can only be run on targets which support DWARF-2 and use gas. +# For now pick a sampling of likely targets. +if {![istarget *-*-linux*] + && ![istarget *-*-gnu*] + && ![istarget *-*-elf*] + && ![istarget *-*-openbsd*] + && ![istarget arm-*-eabi*] + && ![istarget powerpc-*-eabi*]} { + return 0 +} + +set testfile "dw2-empty-namespace" +set srcfile ${testfile}.S +set executable ${testfile}.x + +if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${objdir}/${subdir}/${executable}" object {nodebug}] != "" } { + return -1 +} + +clean_restart $executable + +# `p var' below can work without identified DWARF DIE just based on its ELF symbol. +# Catch it here as `type = '. +gdb_test "ptype var" "type = int" + +gdb_test "p var" " = 1"