threads/76821: Add access to gdb unique thread id

[Niall Douglas]

On 29 Jan 2005 at 13:28, Daniel Eischen wrote:

> > It would be really handy if a unique integer could be obtained from
> > struct
> pthread_t so that one can print debug information to stdout like so:
> 
> You can use pthread_getspecific() or TLS.

Doesn't help from the point of view of seeing which threads in GDB 
match which debug output statements. On Linux this is easy as 
pthread_t is a uint printed by gdb.

How about getting gdb to print the pthread_t pointer address instead? 
I don't care what the number is, so long as I can compare the thread 
listing in gdb to the debug output and it makes sense!

Cheers,
Niall