ia64 in-target debugging

ia64 in-target debugging

[Vincent Girard-Reydet]

Hi everyone,

I'm writing a stub for gdb on ia64 machines in order to debug a BIOS (in
fact it will be a stub for the EFI/ia64). I intend to debug my ia64 server
from a x86 laptop through a serial line.
I saw in the archives that it might not be possible to achieve it. Any
comments about it ? Have you any clues (or pointers to some how-to) on how I
could compile gdb on my laptop to get this stuff working ? The problem is
that if I do a ./configure, I think gdb will know x86, but not ia64, and I
need him to know both of them.
I also need some informations about the executable formats supported by GDB.
The EFI spec requires PE32+ executable format (extension of the PE/COFF
format), but it's not clear if GDB supports it. If not, any idea of the
amount of work needed to support it ?

Also, I don't know where to post my stub when it is debugged. If someone
could tell me, this would be great.

Thank you for your reponses!

Regards,

Winch

Re: ia64 in-target debugging

[Kevin Buettner]

On Tue, 6 Apr 2004 14:18:36 +0200
"Vincent Girard-Reydet" <vincent.girard-reydet@bull.net> wrote:

> I'm writing a stub for gdb on ia64 machines in order to debug a BIOS (in
> fact it will be a stub for the EFI/ia64). I intend to debug my ia64 server
> from a x86 laptop through a serial line.
> I saw in the archives that it might not be possible to achieve it. Any
> comments about it ? Have you any clues (or pointers to some how-to) on how I
> could compile gdb on my laptop to get this stuff working ? The problem is
> that if I do a ./configure, I think gdb will know x86, but not ia64, and I
> need him to know both of them.

Use configure's --target switch.  E.g.

    ./configure --target=ia64-elf

> I also need some informations about the executable formats supported by GDB.
> The EFI spec requires PE32+ executable format (extension of the PE/COFF
> format), but it's not clear if GDB supports it. If not, any idea of the
> amount of work needed to support it ?

I don't know.  Take a look at the bfd directory to see if this support
exists.

> Also, I don't know where to post my stub when it is debugged. If someone
> could tell me, this would be great.

gdb-patches@sources.redhat.com

If you plan on contributing code to GDB, you should make sure that you
have an FSF copyright assignment in order.

Kevin