[Bug corefiles/15451] New: Can't locate registers loading Sparc core in threaded program.

["nospampeeps at yahoo dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=15451

             Bug #: 15451
           Summary: Can't locate registers loading Sparc core in threaded
                    program.
           Product: gdb
           Version: 7.6
            Status: NEW
          Severity: normal
          Priority: P2
         Component: corefiles
        AssignedTo: unassigned@sourceware.org
        ReportedBy: nospampeeps@yahoo.com
    Classification: Unclassified


Loading core file fails on Sparc Solaris with "warning: Couldn't find
general-purpose registers in core file." and "warning: Wrong size fpregset in
core file." warnings. Backtrace and most other functions do not work of course.

I reran the program and did a 'gcore' on the running process. I then ran gdb
and got the above errors. This GDB works on other non-threaded programs.


Process used to generate core and loading it underGDB follow:

SunOS:doug:1> ./uvoltds_R40204US 69&
[3]     20467
SunOS:doug:1> INFO     : 0      : 0      :      : uvoltds.c            : 560  
: VOLTDS initializing
Created channel [2261:Back to Back Client]
Created channel [2262:Back 2 Back Server]
INFO     : 0      : 0      :      : uvoltds.c            : 792   : VOLTDS
running
INFO     : 0      : 0      :      : channel.c            : 465   : Accepted
connection on 0.0.0.0:6420 from 127.0.0.1:61021 for channel [2262:Back 2 Back
Server] using FD 262
pINFO     : 2261   : 2263   : UP   : device.c             : 136   : Device up
sINFO     : 2262   : 2264   : UP   : device.c             : 136   : Device up

   PID TTY         TIME CMD
 12224 pts/1       0:01 find
 29398 pts/1       0:00 gdb
 20467 pts/1       0:00 uvoltds_
 26132 pts/1       0:01 ksh
 20468 pts/1       0:00 ps
SunOS:doug:1> INFO     : 2261   : 0      : UP   : channel.c            : 355  
: Line up
INFO     : 2262   : 0      : UP   : channel.c            : 355   : Line up
ps
   PID TTY         TIME CMD
 12224 pts/1       0:01 find
 29398 pts/1       0:00 gdb
 20467 pts/1       0:00 uvoltds_
 26132 pts/1       0:01 ksh
 20469 pts/1       0:00 ps
SunOS:doug:1> gcore 20467
gcore: core.20467 dumped
SunOS:doug:1> kill -TERM 20467
SunOS:doug:1> INFO     : 0      : 0      :      : uvoltds.c            : 858  
: VOLTDS terminated
SunOS:doug:1> gdb ./uvoltds_R40204US core.20467
GNU gdb (GDB) 7.6
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "sparc-sun-solaris2.10".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /voltds/doug/tmp/WXYZ/uvoltds_R40204US...done.

warning: core file may not match specified executable file.

warning: Couldn't find general-purpose registers in core file.

warning: Wrong size fpregset in core file.
[Thread debugging using libthread_db enabled]
[New Thread 1 (LWP 1)]
[New Thread 2 (LWP 2)]
[New Thread 3        ]
[New Thread 4 (LWP 4)]
[New Thread 5 (LWP 5)]
[New Thread 6 (LWP 6)]
[New Thread 7        ]
[New Thread 8 (LWP 8)]
[New Thread 9        ]
[New Thread 10        ]
[New Thread 11        ]
[New Thread 12        ]
[New Thread 13        ]
Core was generated by `./uvoltds_R40204US 69'.

warning: Couldn't find general-purpose registers in core file.

warning: Wrong size fpregset in core file.
#0  <unavailable> in ?? ()
(gdb)

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