Cross GDB and core files

Cross GDB and core files

[Elan Feingold]

Hi,

I'm trying to get gdb compiled with host of 386-linux and target of
ppc-linux, mostly for debugging core files.  The ppc_8xx-gdb that came with
hardhat doesn't work, when I run it on a core file I get:

...
warning: couldn't find general purpose registers in core file.
warning: wrong size fpregset struct in core file.
...

And if I try to build gdb from scratch using
"./configure --target=ppc-linux" I get a cross gdb that has no clue how to
read PPC ELF core files.

Help.

-elan


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Re: Cross GDB and core files

[Cal Erickson]

Elan,
This was a problem with the 4.18 GDB. It was fixed in the HHL releases.
It is fixed in GDB 5.0x. from MontaVista.

Cal Erickson

Elan Feingold wrote:

> Hi,
>
> I'm trying to get gdb compiled with host of 386-linux and target of
> ppc-linux, mostly for debugging core files.  The ppc_8xx-gdb that came with
> hardhat doesn't work, when I run it on a core file I get:
>
> ...
> warning: couldn't find general purpose registers in core file.
> warning: wrong size fpregset struct in core file.
> ...
>
> And if I try to build gdb from scratch using
> "./configure --target=ppc-linux" I get a cross gdb that has no clue how to
> read PPC ELF core files.
>
> Help.
>
> -elan
>

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Cal Erickson                 MontaVista Software Inc.
Linux Consultant             1237 E. Arques Ave.
Phone (408) 328-0304         Sunnyvale CA 94085
Fax   (408) 328-9204         web http://www.mvista.com
===========================================================================


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Re: Cross GDB and core files

[Peter Barada]

>I'm trying to get gdb compiled with host of 386-linux and target of
>ppc-linux, mostly for debugging core files.  The ppc_8xx-gdb that came with
>hardhat doesn't work, when I run it on a core file I get:
>
>And if I try to build gdb from scratch using
>"./configure --target=ppc-linux" I get a cross gdb that has no clue how to
>read PPC ELF core files.

I've had luck building gdb-5.0 for powerpc-linux and used it to
debug a PPC linux kernel via a serial port, as well as use it (in
conjunction with gdbserver) to debug application code over the
network.  I used the following to configure:

../gdb-5.0/configure --target=powerpc-linux

--
Peter Barada                                   Peter.Barada@motorola.com
Wizard                                         781-852-2768 (direct)
WaveMark Solutions(wholly owned by Motorola)   781-270-0193 (fax)

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