1PTHREAD_ATTR_GETSTACKADDR(3PP)OSIX Programmer's ManuPaTlHREAD_ATTR_GETSTACKADDR(3P)
2
6 This manual page is part of the POSIX Programmer's Manual. The Linux
7 implementation of this interface may differ (consult the corresponding
8 Linux manual page for details of Linux behavior), or the interface may
9 not be implemented on Linux.
10
12 pthread_attr_getstackaddr, pthread_attr_setstackaddr - get and set the
13 stackaddr attribute
14
16 #include <pthread.h>
17 int pthread_attr_getstackaddr(const pthread_attr_t *restrict attr,
21 void **restrict stackaddr);
22 int pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr);
23
26 The pthread_attr_getstackaddr() and pthread_attr_setstackaddr() func‐
27 tions, respectively, shall get and set the thread creation stackaddr
28 attribute in the attr object.
29 The stackaddr attribute specifies the location of storage to be used
31 for the created thread's stack. The size of the storage shall be at
32 least {PTHREAD_STACK_MIN}.
33
35 Upon successful completion, pthread_attr_getstackaddr() and
36 pthread_attr_setstackaddr() shall return a value of 0; otherwise, an
37 error number shall be returned to indicate the error.
38 The pthread_attr_getstackaddr() function stores the stackaddr attribute
40 value in stackaddr if successful.
41
43 No errors are defined.
44 These functions shall not return an error code of [EINTR].
46 The following sections are informative.
48
50 None.
51
53 The specification of the stackaddr attribute presents several ambigui‐
54 ties that make portable use of these interfaces impossible. The
55 description of the single address parameter as a "stack" does not spec‐
56 ify a particular relationship between the address and the "stack"
57 implied by that address. For example, the address may be taken as the
58 low memory address of a buffer intended for use as a stack, or it may
59 be taken as the address to be used as the initial stack pointer regis‐
60 ter value for the new thread. These two are not the same except for a
61 machine on which the stack grows "up" from low memory to high, and on
62 which a "push" operation first stores the value in memory and then
63 increments the stack pointer register. Further, on a machine where the
64 stack grows "down" from high memory to low, interpretation of the
65 address as the "low memory" address requires a determination of the
66 intended size of the stack. IEEE Std 1003.1-2001 has introduced the new
67 interfaces pthread_attr_setstack() and pthread_attr_getstack() to
68 resolve these ambiguities.
69
71 None.
72
74 None.
75
77 pthread_attr_destroy(), pthread_attr_getdetachstate(),
78 pthread_attr_getstack(), pthread_attr_getstacksize(), pthread_attr_set‐
79 stack(), pthread_create(), the Base Definitions volume of
80 IEEE Std 1003.1-2001, <limits.h>, <pthread.h>
81
83 Portions of this text are reprinted and reproduced in electronic form
84 from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
85 -- Portable Operating System Interface (POSIX), The Open Group Base
86 Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
87 Electrical and Electronics Engineers, Inc and The Open Group. In the
88 event of any discrepancy between this version and the original IEEE and
89 The Open Group Standard, the original IEEE and The Open Group Standard
90 is the referee document. The original Standard can be obtained online
91 at http://www.opengroup.org/unix/online.html .
92IEEE/The Open Group 2003 PTHREAD_ATTR_GETSTACKADDR(3P)