[Bug sim/13678] New: ARM: internal error (register not updated) in remote-sim.c

[Bug sim/13678] New: ARM: internal error (register not updated) in remote-sim.c

[adam at irvine dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=13678

             Bug #: 13678
           Summary: ARM: internal error (register not updated) in
                    remote-sim.c
           Product: gdb
           Version: 7.4
            Status: NEW
          Severity: normal
          Priority: P2
         Component: sim
        AssignedTo: unassigned@sourceware.org
        ReportedBy: adam@irvine.com
    Classification: Unclassified


I built gdb for arm-elf and tried it on a program I built with GCC.  I'm not
sure I configured things right or if the target program was built correctly,
but the gdb code looks suspicious enough that it's worth reporting anyway.

I used the commands:
gdb hello
(gdb) target sim
(gdb) load
(gdb) r
Starting program...
.../gdb/remote-sim.c:531: internal-error: Register 25 not updated

In sim/arm/wrapper.c, sim_store_register() appears to return -1 if the register
is any general register, floating-point register, or PS.

In gdb/remote-sim.c, gdbsim_store_register() calls sim_store_register() and
then displays the above-mentioned internal error if that function returns a
negative value.  "What we've got here is a failure to communicate..."

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[Bug sim/13678] ARM: internal error (register not updated) in remote-sim.c

[vapier at gentoo dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=13678

Mike Frysinger <vapier at gentoo dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |vapier at gentoo dot org

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[Bug sim/13678] ARM: internal error (register not updated) in remote-sim.c

[vapier at gentoo dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=13678

Mike Frysinger <vapier at gentoo dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |arm-*

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[Bug sim/13678] ARM: internal error (register not updated) in remote-sim.c

[vapier at gentoo dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=13678

Mike Frysinger <vapier at gentoo dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at sourceware dot org   |nickc at redhat dot com

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[Bug sim/13678] sim: arm: internal error (register not updated) in remote-sim.c

[vapier at gentoo dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=13678

Mike Frysinger <vapier at gentoo dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|ARM: internal error         |sim: arm: internal error
                   |(register not updated) in   |(register not updated) in
                   |remote-sim.c                |remote-sim.c

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[Bug sim/13678] sim: arm: internal error (register not updated) in remote-sim.c

[luis.machado at arm dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13678

Luis Machado <luis.machado at arm dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |luis.machado at arm dot com

--- Comment #1 from Luis Machado <luis.machado at arm dot com> ---
Hi Nick, are you still planning to address this?

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[Bug sim/13678] sim: arm: internal error (register not updated) in remote-sim.c

[nickc at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13678

--- Comment #2 from Nick Clifton <nickc at redhat dot com> ---
(In reply to Luis Machado from comment #1)
> Hi Nick, are you still planning to address this?

Sorry - I had forgotten that I am still listed as a maintainer for the arm sim.

I will have a go, although it has been a long time.

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[Bug sim/13678] sim: arm: internal error (register not updated) in remote-sim.c

[nickc at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13678

Nick Clifton <nickc at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING

--- Comment #3 from Nick Clifton <nickc at redhat dot com> ---
(In reply to adam from comment #0)
Hi Adam,

  Please could you upload the hello binary that triggers this problem.

  I tried to reproduce the failure using an executable that I had created
  myself, but it worked.

Cheers
  Nick

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