From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 24075 invoked by alias); 21 Mar 2002 00:51:55 -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 24008 invoked from network); 21 Mar 2002 00:51:53 -0000 Received: from unknown (HELO nevyn.them.org) (128.2.145.6) by sources.redhat.com with SMTP; 21 Mar 2002 00:51:53 -0000 Received: from drow by nevyn.them.org with local (Exim 3.35 #1 (Debian)) id 16nqo6-00065i-00 for ; Wed, 20 Mar 2002 19:51:54 -0500 Date: Wed, 20 Mar 2002 16:51:00 -0000 From: Daniel Jacobowitz To: gdb-patches@sources.redhat.com Subject: Re: [RFA/testsuite] Complex numbers in C Message-ID: <20020320195154.A19659@nevyn.them.org> Mail-Followup-To: gdb-patches@sources.redhat.com References: <20020320193644.A21454@nevyn.them.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020320193644.A21454@nevyn.them.org> User-Agent: Mutt/1.3.23i X-SW-Source: 2002-03/txt/msg00401.txt.bz2 On Wed, Mar 20, 2002 at 07:36:44PM -0500, Daniel Jacobowitz wrote: > Here's a test for the bug I just fixed. It's got one caveat: I could not, > no matter how I searched, find a way to make DejaGNU be quiet if a test > fails to compile. This adds one line of gcc error message to the testsuite > output if the test didn't build (non-GCC-and-non-C99 compiler will do it, > probably). By the way, it fails on GCC 3.0/stabs because of a (probably) GCC bug in debug information. It also fails in GCC 2.95/DWARF-2 because of a bug with __attribute__((packed)), so I'd actually use the test attached instead. > Other caveat was that I don't remember if we agreed to use unsupported in > this case or not. > > [As a side note, I'm trying to design a gcc.dg-like framework for GDB. I > shouldn't need to write TCL for a test this simple, with a small testcase, > and there are a lot of this sort of test that we could use.] > > -- > Daniel Jacobowitz Carnegie Mellon University > MontaVista Software Debian GNU/Linux Developer > > 2002-03-20 Daniel Jacobowitz > > * gdb.base/complex.c: New file. > * gdb.base/complex.exp: New file. > --- /dev/null Wed Dec 31 19:00:00 1969 +++ gdb/testsuite/gdb.base/complex.c Wed Mar 20 19:51:21 2002 @@ -0,0 +1,49 @@ +/* Test taken from GCC. Verify that we can print a structure containing + a complex number. */ + +typedef __complex__ float cf; +struct x { char c; cf f; } __attribute__ ((__packed__)); +struct unpacked_x { char c; cf f; }; +extern void f4 (struct unpacked_x*); +extern void f3 (void); +extern void f2 (struct x*); +extern void f1 (void); +int +main (void) +{ + f1 (); + f3 (); + exit (0); +} + +void +f1 (void) +{ + struct x s; + s.f = 1; + s.c = 42; + f2 (&s); +} + +void +f2 (struct x *y) +{ + if (y->f != 1 || y->c != 42) + abort (); +} + +void +f3 (void) +{ + struct unpacked_x s; + s.f = 1; + s.c = 42; + f4 (&s); +} + +void +f4 (struct unpacked_x *y) +{ + if (y->f != 1 || y->c != 42) + abort (); +} --- /dev/null Wed Dec 31 19:00:00 1969 +++ gdb/testsuite/gdb.base/complex.exp Wed Mar 20 19:50:45 2002 @@ -0,0 +1,56 @@ +# Copyright 2002 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. + +# Please email any bugs, comments, and/or additions to this file to: +# bug-gdb@prep.ai.mit.edu + +if $tracelevel then { + strace $tracelevel +} + +set bug_id 0 + +set testfile complex +set srcfile ${testfile}.c +set binfile ${objdir}/${subdir}/${testfile} +set options debug + +if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $options] != "" } { + # No support for __complex__, presumably. + unsupported "print complex packed value in C" + unsupported "print complex value in C" + return 0 +} + +# Start with a fresh gdb. + +gdb_exit +gdb_start +gdb_reinitialize_dir $srcdir/$subdir +gdb_load $binfile + +if [runto f2] then { + gdb_test "p *y" "\\\$\[0-9\]* = \{c = 42 '\\*', f = 1 \\+ 0 \\* I\}" \ + "print complex packed value in C" +} + +if [runto f4] then { + gdb_test "p *y" "\\\$\[0-9\]* = \{c = 42 '\\*', f = 1 \\+ 0 \\* I\}" \ + "print complex value in C" + +} + +return 0 -- Daniel Jacobowitz Carnegie Mellon University MontaVista Software Debian GNU/Linux Developer