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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(const pthread_attr_t *restrict attr,
                                     void **restrict 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 stack‐
       addr.  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  read‐
       able 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.

ATTRIBUTES
       For an explanation of the terms used in this section, see attributes(7).

       β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
       β”‚Interface                                                                                                                             β”‚ Attribute     β”‚ Value   β”‚
       β”œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€
       β”‚pthread_attr_setstackaddr(), pthread_attr_getstackaddr()                                                                              β”‚ Thread safety β”‚ MT-Safe β”‚
       β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜

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

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  exam‐
       ple,  on  architectures with a stack that grows downward, stackaddr specifies the next address past the highest address of the allocated stack area.  However, on
       architectures with a stack that grows upward, stackaddr specifies the lowest address in the allocated stack area.  By contrast, the stackaddr used by pthread_at‐
       tr_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)

Linux                                                                          2021-03-22                                                   PTHREAD_ATTR_SETSTACKADDR(3)