source: rtems/c/src/exec/score/headers/stack.h @ 3a4ae6c

4.104.114.84.95
Last change on this file since 3a4ae6c was 3a4ae6c, checked in by Joel Sherrill <joel.sherrill@…>, on 09/11/95 at 19:35:39

The word "RTEMS" almost completely removed from the core.

Configuration Table Template file added and all tests
modified to use this. All gvar.h and conftbl.h files
removed from test directories.

Configuration parameter maximum_devices added.

Core semaphore and mutex handlers added and RTEMS API Semaphore
Manager updated to reflect this.

Initialization sequence changed to invoke API specific initialization
routines. Initialization tasks table now owned by RTEMS Tasks Manager.

Added user extension for post-switch.

Utilized user extensions to implement API specific functionality
like signal dispatching.

Added extensions to the System Initialization Thread so that an
API can register a function to be invoked while the system
is being initialized. These are largely equivalent to the
pre-driver and post-driver hooks.

Added the Modules file oar-go32_p5, modified oar-go32, and modified
the file make/custom/go32.cfg to look at an environment varable which
determines what CPU model is being used.

All BSPs updated to reflect named devices and clock driver's IOCTL
used by the Shared Memory Driver. Also merged clock isr into
main file and removed ckisr.c where possible.

Updated spsize to reflect new and moved variables.

Makefiles for the executive source and include files updated to show
break down of files into Core, RTEMS API, and Neither.

Header and inline files installed into subdirectory based on whether
logically in the Core or a part of the RTEMS API.
  • Property mode set to 100644
File size: 2.1 KB
Line 
1/*  stack.h
2 *
3 *  This include file contains all information about the thread
4 *  Stack Handler.  This Handler provides mechanisms which can be used to
5 *  initialize and utilize stacks.
6 *
7 *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
8 *  On-Line Applications Research Corporation (OAR).
9 *  All rights assigned to U.S. Government, 1994.
10 *
11 *  This material may be reproduced by or for the U.S. Government pursuant
12 *  to the copyright license under the clause at DFARS 252.227-7013.  This
13 *  notice must appear in all copies of this file and its derivatives.
14 *
15 *  $Id$
16 */
17
18#ifndef __STACK_h
19#define __STACK_h
20
21#ifdef __cplusplus
22extern "C" {
23#endif
24
25/*
26 *  The following constant defines the minimum stack size which every
27 *  thread must exceed.
28 */
29
30#define STACK_MINIMUM_SIZE  CPU_STACK_MINIMUM_SIZE
31
32/*
33 *  The following defines the control block used to manage each stack.
34 */
35
36typedef struct {
37  unsigned32  size;        /* stack size */
38  void       *area;        /* low memory addr of stack */
39}   Stack_Control;
40
41/*
42 *  _Stack_Initialize
43 *
44 *  DESCRIPTION:
45 *
46 *  This routine initializes the_stack record to indicate that
47 *  size bytes of memory starting at starting_address have been
48 *  reserved for a stack.
49 */
50
51STATIC INLINE void _Stack_Initialize (
52  Stack_Control    *the_stack,
53  void             *starting_address,
54  unsigned32        size
55);
56
57/*
58 *  _Stack_Is_enough
59 *
60 *  DESCRIPTION:
61 *
62 *  This function returns TRUE if size bytes is enough memory for
63 *  a valid stack area on this processor, and FALSE otherwise.
64 */
65
66STATIC INLINE boolean _Stack_Is_enough (
67  unsigned32 size
68);
69
70/*
71 *  _Stack_Adjust_size
72 *
73 *  DESCRIPTION:
74 *
75 *  This function increases the stack size to insure that the thread
76 *  has the desired amount of stack space after the initial stack
77 *  pointer is determined based on alignment restrictions.
78 *
79 *  NOTE:
80 *
81 *  The amount of adjustment for alignment is CPU dependent.
82 */
83
84STATIC INLINE unsigned32 _Stack_Adjust_size (
85  unsigned32 size
86);
87
88#include <rtems/core/stack.inl>
89
90#ifdef __cplusplus
91}
92#endif
93
94#endif
95/* end of include file */
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