1 /***************************************************************************
2  * Copyright (c) 2024 Microsoft Corporation
3  *
4  * This program and the accompanying materials are made available under the
5  * terms of the MIT License which is available at
6  * https://opensource.org/licenses/MIT.
7  *
8  * SPDX-License-Identifier: MIT
9  **************************************************************************/
10 
11 
12 /**************************************************************************/
13 /**************************************************************************/
14 /**                                                                       */
15 /** POSIX wrapper for THREADX                                             */
16 /**                                                                       */
17 /**                                                                       */
18 /**                                                                       */
19 /**************************************************************************/
20 /**************************************************************************/
21 
22 /* Include necessary system files.  */
23 
24 #include "tx_api.h"    /* Threadx API */
25 #include "pthread.h"  /* Posix API */
26 #include "px_int.h"    /* Posix helper functions */
27 
28 /**************************************************************************/
29 /*                                                                        */
30 /*  FUNCTION                                               RELEASE        */
31 /*                                                                        */
32 /*    pthread_attr_getstackaddr                           PORTABLE C      */
33 /*                                                           6.1.7        */
34 /*  AUTHOR                                                                */
35 /*                                                                        */
36 /*    William E. Lamie, Microsoft Corporation                             */
37 /*                                                                        */
38 /*  DESCRIPTION                                                           */
39 /*                                                                        */
40 /*     This function returns the stack address associated with a pthread  */
41 /*     attributes                                                         */
42 /*                                                                        */
43 /*  INPUT                                                                 */
44 /*                                                                        */
45 /*    attr                           Address of the thread attributes     */
46 /*    stackaddr                      Address of variable to contain the   */
47 /*                                   returned stack address               */
48 /*                                                                        */
49 /*                                                                        */
50 /*  OUTPUT                                                                */
51 /*                                                                        */
52 /*     0                             if successful                        */
53 /*     Value                         in case of any error                 */
54 /*                                                                        */
55 /*  CALLS                                                                 */
56 /*                                                                        */
57 /*    None                                                                */
58 /*                                                                        */
59 /*  CALLED BY                                                             */
60 /*                                                                        */
61 /*    Application Code                                                    */
62 /*                                                                        */
63 /*  RELEASE HISTORY                                                       */
64 /*                                                                        */
65 /*    DATE              NAME                      DESCRIPTION             */
66 /*                                                                        */
67 /*  06-02-2021     William E. Lamie         Initial Version 6.1.7         */
68 /*                                                                        */
69 /**************************************************************************/
pthread_attr_getstackaddr(pthread_attr_t * attr,void ** stackaddr)70 INT pthread_attr_getstackaddr( pthread_attr_t *attr,void **stackaddr)
71 {
72     /* First check the attribute object is already destroyed? */
73     if (attr->inuse == TX_FALSE)
74     {
75         posix_errno = EINVAL;
76         posix_set_pthread_errno(EINVAL);
77         return(EINVAL);
78     }
79     else
80     {
81 	    *stackaddr = attr->stack_address ;
82         return(OK);
83     }
84 }
85