NAME

pthread_stackseg_np — return stack size and location

SYNOPSIS

#include <sys/signal.h>
#include <pthread_np.h>

int
pthread_stackseg_np(pthread_t thread, stack_t *sinfo);

DESCRIPTION

The 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 the base.

RETURN VALUES

If successful, the pthread_stackseg_np() function will return 0. Otherwise an error number will be returned to indicate the error.

ERRORS

The pthread_stackseg_np() function will fail if:

[EAGAIN]

Stack information for the given thread is not currently available. There is no guarantee that the given thread's stack information will ever become available.

SEE ALSO

sigaltstack(2), pthreads(3)

STANDARDS

pthread_stackseg_np() is a non-portable extension to IEEE Std 1003.1-2001 (“POSIX.1”).