From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3829 invoked by alias); 24 Feb 2003 03:55:46 -0000 Mailing-List: contact gdb-patches-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sources.redhat.com Received: (qmail 3822 invoked from network); 24 Feb 2003 03:55:45 -0000 Received: from unknown (HELO duracef.shout.net) (204.253.184.12) by 172.16.49.205 with SMTP; 24 Feb 2003 03:55:45 -0000 Received: (from mec@localhost) by duracef.shout.net (8.11.6/8.11.6) id h1O3ti606453; Sun, 23 Feb 2003 21:55:44 -0600 Date: Mon, 24 Feb 2003 03:55:00 -0000 From: Michael Elizabeth Chastain Message-Id: <200302240355.h1O3ti606453@duracef.shout.net> To: fnasser@redhat.com, gdb-patches@sources.redhat.com Subject: [rfa] new test, pr-1090.exp, multi-register variables X-SW-Source: 2003-02/txt/msg00567.txt.bz2 This is a new test script for pr gdb/1090, which is about register variables which occupy several registers. Both gdb 5.3 and gdb HEAD%20030223 get this wrong. In my testbed, this happens with gcc 2.95.3; gcc v3 compilers don't allocate multi-register variables. The symptom of this bug is that gdb prints the first word of a structure correctly but botches the second word. The test has a nice KFAIL for this. Okay to commit? Michael C === pr-1090.c /* Test program for multi-register variable. Copyright 2003 Free Software Foundation, Inc. This file is part of the gdb testsuite. 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 was written by Michael Elizabeth Chastain (mec@shout.net). */ struct s_2_by_4 { int field_0; int field_1; }; void marker (struct s_2_by_4 s_whatever) { s_whatever = s_whatever; return; } void foo () { /* I want this variable in a register but I can't really force it */ register struct s_2_by_4 s24; s24.field_0 = 1170; s24.field_1 = 64701; marker (s24); return; } int main () { foo (); } === pr-1090.exp # Copyright 2003 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. # Tests for PR gdb/1090. # 2003-02-23 Michael Chastain # This file is part of the gdb testsuite. if $tracelevel then { strace $tracelevel } # # test running programs # set prms_id 0 set bug_id 0 set testfile "pr-1090" set srcfile ${testfile}.c set binfile ${objdir}/${subdir}/${testfile} if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." } gdb_exit gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load ${binfile} if ![runto marker] then { perror "couldn't run to breakpoint" continue } gdb_test "up" ".*foo.*" "up from marker" send_gdb "print s24\n" gdb_expect { -re "\\\$\[0-9\]* = \\{field_0 = 1170, field_1 = 64701\\}\r\n$gdb_prompt $" { pass "print s24" } -re "\\\$\[0-9\]* = \\{field_0 = 1170, field_1 = .*\\}\r\n$gdb_prompt $" { # happens with gcc 2.95.3, which actually puts s24 in registers. # gdb cannot find the second register and prints garbage. kfail "gdb/1090" "print s24" } -re ".*$gdb_prompt $" { fail "print s24" } timeout { fail "print s24 (timeout)" } }