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Command: pthread_stackseg_np | Section: 3 | Source: OpenBSD | File: pthread_stackseg_np.3
PTHREAD_STACKSEG_NP(3) FreeBSD Library Functions Manual
NAME
pthread_stackseg_np - return stack size and location
SYNOPSIS
#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").
FreeBSD 14.1-RELEASE-p8 February 22, 2023 FreeBSD 14.1-RELEASE-p8