PTHREAD_ATTR_SETSTACKADDR(3)                        Linux Programmer's Manual                       PTHREAD_ATTR_SETSTACKADDR(3)



NAME
       pthread_attr_setstackaddr, pthread_attr_getstackaddr - set/get stack address attribute in thread attributes object

SYNOPSIS
       #include <pthread.h>

       int pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr);
       int pthread_attr_getstackaddr(pthread_attr_t *attr, void **stackaddr);

       Compile and link with -pthread.

DESCRIPTION
       These functions are obsolete: do not use them.  Use pthread_attr_setstack(3) and pthread_attr_getstack(3) instead.

       The  pthread_attr_setstackaddr() function sets the stack address attribute of the thread attributes object referred to by
       attr to the value specified in stackaddr.  This attribute specifies the location of the stack that should be  used  by  a
       thread that is created using the thread attributes object attr.

       stackaddr  should  point  to a buffer of at least PTHREAD_STACK_MIN bytes that was allocated by the caller.  The pages of
       the allocated buffer should be both readable and writable.

       The pthread_attr_getstackaddr() function returns the stack address attribute of the thread attributes object referred  to
       by attr in the buffer pointed to by stackaddr.

RETURN VALUE
       On success, these functions return 0; on error, they return a nonzero error number.

ERRORS
       No errors are defined (but applications should nevertheless handle a possible error return).

VERSIONS
       These functions are provided by glibc since version 2.1.

CONFORMING TO
       POSIX.1-2001 specifies these functions but marks them as obsolete.  POSIX.1-2008 removes the specification of these func-
       tions.

NOTES
       Do not use these functions!  They cannot be portably used, since they provide no  way  of  specifying  the  direction  of
       growth  or  the range of the stack.  For example, on architectures with a stack that grows downwards, stackaddr specifies
       the next address past the highest address of the allocated stack area.  However, on architectures with a stack that grows
       upwards,  stackaddr  specifies  the  lowest  address  in  the  allocated  stack area.  By contrast, the stackaddr used by
       pthread_attr_setstack(3) and pthread_attr_getstack(3), is always a pointer to the lowest address in the  allocated  stack
       area (and the stacksize argument specifies the range of the stack).

SEE ALSO
       pthread_attr_init(3), pthread_attr_setstack(3), pthread_attr_setstacksize(3), pthread_create(3), pthreads(7)

COLOPHON
       This  page  is  part of release 3.25 of the Linux man-pages project.  A description of the project, and information about
       reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



Linux                                                      2008-10-24                               PTHREAD_ATTR_SETSTACKADDR(3)