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PTHREAD_ATTR_SETSTACKADDR(3) FreeBSD Library Functions Manual NAME pthread_attr_setstackaddr, pthread_attr_getstackaddr - set and get stackaddr attribute SYNOPSIS #include <pthread.h> int pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr); int pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr); DESCRIPTION The functions pthread_attr_setstackaddr() and pthread_attr_getstackaddr(), respectively, set and get the thread creation stackaddr attribute in the attr object. The stackaddr attribute specifies the location of storage to be used for the created thread's stack. The size of the storage is at least PTHREAD_STACK_MIN. On OpenBSD the stack must have been allocated using mmap(2) with the MAP_STACK attribute. Otherwise, use of the stack will cause SIGABRT faults. pthread_attr_setstack(3) can avoid this problem because it knows the size of the stack to remap. RETURN VALUES Upon successful completion, pthread_attr_setstackaddr() and pthread_attr_getstackaddr() return a value of 0. Otherwise, an error number is returned to indicate the error. The pthread_attr_getstackaddr() function stores the stackaddr attribute value in stackaddr if successful. ERRORS No errors are defined. These functions will not return an error code of [EINTR]. SEE ALSO pthread_attr_init(3), pthread_attr_setdetachstate(3), pthread_attr_setguardsize(3), pthread_attr_setstack(3), pthread_attr_setstacksize(3), pthread_create(3), pthreads(3) STANDARDS pthread_attr_setstackaddr() and pthread_attr_getstackaddr() conform to ISO/IEC 9945-1 ANSI/IEEE ("POSIX") Std 1003.1 Second Edition 1996-07-12. FreeBSD 14.1-RELEASE-p8 July 17, 2022 FreeBSD 14.1-RELEASE-p8