Re: GDB support for thread-local storage

Jim Blandy
2002-06-21T22:37:34Z

Daniel Jacobowitz <drow@mvista.com> writes:
> On Fri, Jun 21, 2002 at 03:08:03PM -0500, Jim Blandy wrote:
> > Why aren't we using thread_db, though? Why can't we run thread_db and
> > simply serve its memory and register requests from the core file? I
> > don't see which part of the interface makes this impossible. And
> > we'll need to do it if Linux switches to an NxM thread model, no?
>
> I should add to my previous comment that the use of libthread_db to
> access TLS data means that such will never be possible in a core file,
> either, without significant redesign of libthread_db - possibly as some
> sort of data file which can be loaded separately from the coredump and
> describe thread structures.

Well, if the core file support is willing to reach into the notes and
construct a thread list, what's wrong with having it override the
`thread_local_storage_get_address' target method, too?