return stack size and location
pthread_stackseg_np() function returns information
about the given thread's stack. A stack_t is the same as
a struct sigaltstack (see
sigaltstack(2)) except the
ss_sp variable points to the top of the stack instead of
If successful, the
pthread_stackseg_np() function will
return 0. Otherwise an error number will be returned to indicate the error.
pthread_stackseg_np() function will fail if:
- Stack information for the given thread is not currently available. There
is no guarantee that the given thread's stack information will ever become
pthread_stackseg_np() is a non-portable extension to
IEEE Std 1003.1-2001 (“POSIX.1”).