From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-prs-return-10057-listarch-gdb-prs=sources.redhat.com@sourceware.org>
Received: (qmail 5170 invoked by alias); 23 May 2011 15:43:58 -0000
Received: (qmail 5142 invoked by uid 22791); 23 May 2011 15:43:57 -0000
X-SWARE-Spam-Status: No, hits=-2.8 required=5.0
	tests=ALL_TRUSTED,AWL,BAYES_00
X-Spam-Check-By: sourceware.org
Received: from localhost (HELO sourceware.org) (127.0.0.1)
    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 23 May 2011 15:43:43 +0000
From: "qiyao at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug tdep/12798] New: Failed to pass _Complex args in value
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gdb
X-Bugzilla-Component: tdep
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: qiyao at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: unassigned at sourceware dot org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-12798-4717@http.sourceware.org/bugzilla/>
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
MIME-Version: 1.0
Date: Mon, 23 May 2011 15:43:00 -0000
Mailing-List: contact gdb-prs-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <gdb-prs.sourceware.org>
List-Subscribe: <mailto:gdb-prs-subscribe@sourceware.org>
List-Archive: <http://sourceware.org/ml/gdb-prs/>
List-Post: <mailto:gdb-prs@sourceware.org>
List-Help: <mailto:gdb-prs-help@sourceware.org>, <http://sourceware.org/lists.html#faqs>
Sender: gdb-prs-owner@sourceware.org
X-SW-Source: 2011-q2/txt/msg00319.txt.bz2

http://sourceware.org/bugzilla/show_bug.cgi?id=12798

           Summary: Failed to pass _Complex args in value
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tdep
        AssignedTo: unassigned@sourceware.org
        ReportedBy: qiyao@gcc.gnu.org
              Host: x86_64-linux
            Target: x86_64-linux
             Build: x86_64-linux


Created attachment 5748
  --> http://sourceware.org/bugzilla/attachment.cgi?id=5748
test case

GDB doesn't pass _Complex args in value in a correct way.

Here are the steps to reproduce it,

$ gcc -g complex-value.c -o complex-value
$ ./gdb ./complex-value
(gdb) b main
Breakpoint 1 at 0x4008b5: file /scratch/yao/complex-value.c, line 58.
(gdb) run
Starting program: /scratch/yao/gdb_cvs/build-x86_64/gdb/compllex-value

Breakpoint 1, main () at /scratch/yao/complex-value.c:58
58        return 0;
(gdb) p t_float_complex_values(fc1, fc2)
During symbol reading, incomplete CFI data; unspecified registers (e.g., rax)
at 0x4008b5.
$1 = 0  // <-- wrong.  1 is expected here.
(gdb) p t_double_complex_values(dc1, dc2)
$2 = 0  // <-- wrong.  1 is expected here.
(gdb) p t_long_double_complex_values(ldc1, ldc2)
$3 = 1  // <-- correct.

-- 
Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.