pthread_attr_setstackaddr, pthread_attr_getstackaddr - set/get stack address
attribute in thread attributes object
int pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr);
int pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr);
Compile and link with -pthread.
These functions are obsolete: do not use them.
() 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
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.
() function returns the stack address
attribute of the thread attributes object referred to by attr
buffer pointed to by stackaddr
On success, these functions return 0; on error, they return a nonzero error
No errors are defined (but applications should nevertheless handle a possible
These functions are provided by glibc since version 2.1.
Multithreading (see pthreads(7))¶
() and pthread_attr_getstackaddr
functions are thread-safe.
POSIX.1-2001 specifies these functions but marks them as obsolete. POSIX.1-2008
removes the specification of these functions.
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 downward,
specifies the next address past the highest
the allocated stack area. However, on architectures with a stack that grows
specifies the lowest
address in the allocated
stack area. By contrast, the stackaddr
, is always
a pointer to the lowest address in the allocated stack area (and the
argument specifies the range of the stack).
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