Re: [RFA] Only try to load libthread_db when we load libpthread.

[Pedro Alves <pedro at codesourcery dot com>]

On Thursday 06 October 2011 12:22:24, Pedro Alves wrote:
> On Wednesday 05 October 2011 19:27:05, Doug Evans wrote:
> > 2011-10-05  Doug Evans  <dje@google.com>
> > 
> >         * linux-thread-db.c (thread_db_new_objfile): Only try to load
> >         libthread_db when we load libpthread.
> 
> Makes sense to me.
> 
> > No regressions in amd64-linux,
> > but I can imagine it misses some cases.
> 
> Yeah.  I think we'll no longer activate thread_db when debugging core
> files of static executables (e.g., a core of gdb.threads/staticthreads).
> It works with live debugging since we call check_for_thread_db
> from linux_child_post_attach/linux_child_post_startup_inferior.
> Maybe moving that to an inferior_created observer in
> linux-thread-db.c would work.

And all the talk about executables made me realize something else.  :-)

For static threaded executables, we'll want to check for thread
db when the symbols of the main executable are (re)loaded too.
I don't recall off hand if there's a flag in the objfile to
know that it's from the main executable though.

-- 
Pedro Alves