[ILUG] NPTL ptrace and thread registers

[Alan Ryan]

Hi,

A Dreaded Mulit-Threaded problem!!

I am porting an application from 2.4 to the  2.6 kernel.  The code relies on
using ptrace, to get the register states of  running threads, in order to
execute.  The problem is that I cannot attach to myself; as each NPTL thread
within a process shares a PID  (with linuxthreads, each new thread had a
separate PID). So if I can't use PTRACE_GETREG anymore - how can I get the
register state for my various  threads?

Do I have to fork a new process, and get it to peek back into my registers?

Thanks,
Alan

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