Re: Pthreadid, pid

[KV Pavuram]

Thank you Andrew. It worked.

Pav. 


--- Andrew Burgess <aab@xxxxxxxxxxx> wrote:

> >When i run a multi-threaded program from gdb, gdb
> >shows "New Thread XXXXXXXX (LWP LLLL)" for each new
> >thread created by the application.
> 
> >However, when I run ps -aelfm, the output shows
> each
> >thread of this application but with a different
> PID.
> 
> >And, getpid () in each thread inside the
> application
> >always retreives the same PID.
> 
> >What is the relation between LWP is given by GDB,
> PID
> >shown by ps call and the PID returned by getpid ().
> 
> >Is there any system call to obtain one from the
> >other??
> 
> see gettid(2)
> 
> you need to include the macro call
> _syscall0(pid_t,gettid)
> in your program as gettid isn't in glibc
> 
> 



		
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