From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 23207 invoked by alias); 24 Sep 2007 14:41:35 -0000 Received: (qmail 23199 invoked by uid 22791); 24 Sep 2007 14:41:34 -0000 X-Spam-Check-By: sourceware.org Received: from igw2.br.ibm.com (HELO igw2.br.ibm.com) (32.104.18.25) by sourceware.org (qpsmtpd/0.31) with ESMTP; Mon, 24 Sep 2007 14:41:28 +0000 Received: from mailhub3.br.ibm.com (mailhub3 [9.18.232.110]) by igw2.br.ibm.com (Postfix) with ESMTP id 6F7D617F5F7 for ; Mon, 24 Sep 2007 11:39:12 -0300 (BRT) Received: from d24av02.br.ibm.com (d24av02.br.ibm.com [9.18.232.47]) by mailhub3.br.ibm.com (8.13.8/8.13.8/NCO v8.5) with ESMTP id l8OEfQJv2621648 for ; Mon, 24 Sep 2007 11:41:26 -0300 Received: from d24av02.br.ibm.com (loopback [127.0.0.1]) by d24av02.br.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id l8OEfPN3021659 for ; Mon, 24 Sep 2007 11:41:25 -0300 Received: from dyn531757.br.ibm.com (dyn531757.br.ibm.com [9.18.238.24]) by d24av02.br.ibm.com (8.12.11.20060308/8.12.11) with ESMTP id l8OEfP22021656 for ; Mon, 24 Sep 2007 11:41:25 -0300 Subject: [PATCH] PPC Call-clobbered registers testcase From: Luis Machado Reply-To: luisgpm@linux.vnet.ibm.com To: gdb-patches@sourceware.org Content-Type: multipart/mixed; boundary="=-7RlmXoeMWWup/nfFbKmh" Date: Mon, 24 Sep 2007 14:41:00 -0000 Message-Id: <1190644886.4375.2.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.6.1 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: 2007-09/txt/msg00340.txt.bz2 --=-7RlmXoeMWWup/nfFbKmh Content-Type: text/plain Content-Transfer-Encoding: 7bit Content-length: 289 Hi, Accompaining the patch the deals with call-clobbered registers on PPC, follows the testcase to make sure it's being handled correctly. Suggestions and improvements are welcome. :ADDPATCH ppc-testcase: -- Luis Machado IBM Linux Technology Center e-mail: luisgpm@linux.vnet.ibm.com --=-7RlmXoeMWWup/nfFbKmh Content-Disposition: attachment; filename=clobbered-registers-testcase.diff Content-Type: text/x-patch; name=clobbered-registers-testcase.diff; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-length: 3100 2007-09-24 Luis Machado * ppc-clobbered-registers-O2.c: New testcase source file. * ppc-clobbered-registers-O2.exp: New testcase expect file. Index: gdb/testsuite/gdb.trace/ppc-clobbered-registers-O2.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ gdb/testsuite/gdb.trace/ppc-clobbered-registers-O2.c 2007-09-24 07:26:39.000000000 -0700 @@ -0,0 +1,21 @@ + +unsigned * __attribute__((noinline)) +start_sequence (unsigned * x, unsigned * y) +{ + return (unsigned *)0xdeadbeef; +}; + +unsigned __attribute__((noinline)) +gen_movsd (unsigned * operand0, unsigned * operand1) +{ + return *start_sequence(operand0, operand1); +} + +int main(void) +{ + unsigned x, y; + + x = 13; + y = 14; + return (int)gen_movsd (&x, &y); +} Index: gdb/testsuite/gdb.trace/ppc-clobbered-registers-O2.exp =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ gdb/testsuite/gdb.trace/ppc-clobbered-registers-O2.exp 2007-09-24 07:26:39.000000000 -0700 @@ -0,0 +1,61 @@ +# Copyright 2006 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 2 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, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +# +# This file is part of the gdb testsuite. + +if $tracelevel { + strace $tracelevel +} + +# Test displaying call clobbered registers in optimized binaries for ppc. +# GDB should now show incorrect values. + +set prms_id 0 +set bug_id 0 + +if ![istarget "powerpc64-*"] then { + verbose "Skipping powerpc64 call clobbered registers testing." + return +} + +set testfile "ppc-clobbered-registers-O2" +set srcfile ${testfile}.c +set binfile ${objdir}/${subdir}/${testfile} +set compile_flags "debug additional_flags=-O2" + +if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable ${compile_flags}] != "" } { + unsupported "Testcase compile failed." + return -1 +} + +gdb_exit +gdb_start +gdb_reinitialize_dir $srcdir/$subdir +gdb_load ${binfile} + +if ![runto_main] then { + perror "Couldn't run to breakpoint" + continue +} + +gdb_test "b start_sequence" ".*Breakpoint 2 at.*line 6.*" \ + "Insert breakpoint at problematic function" + +gdb_test continue ".*Breakpoint 2.*in start_sequence.*" \ + "Run until problematic function" + +gdb_test backtrace ".*operand0=.*operand1=.*" \ + "Check value of call clobbered registers" --=-7RlmXoeMWWup/nfFbKmh--