Re: [Libunwind-devel] retrieve Stack Trace of all threads from Current process

[Arun Sharma]

On Fri, Apr 30, 2010 at 2:47 AM, POKHARAKAR Sandeep <address@hidden> wrote:

The steps I followed to achieve this are:

unw_getcontext =>

unw_create_addr_space => passed unw_accessors_t.

_UPT_create => passed process id and thread ids.

unw_init_remote => passed above return value.

unw_step => to walk the stack frames

You'll need to iterate over all threads in the process and stop them first, before you can examine their stack traces. Doing this in a deadlock free way may be tricky. Please look at tests/test-ptrace.c for an example. It doesn't exactly do what you want, but the same general outline should apply.

Once you've gathered the stack traces, you should be able to continue via SIGCONT.

 -Arun