source: rtems/cpukit/include/rtems/score/sysstate.h @ 21275b58

5
Last change on this file since 21275b58 was 2afb22b, checked in by Chris Johns <chrisj@…>, on 12/23/17 at 07:18:56

Remove make preinstall

A speciality of the RTEMS build system was the make preinstall step. It
copied header files from arbitrary locations into the build tree. The
header files were included via the -Bsome/build/tree/path GCC command
line option.

This has at least seven problems:

  • The make preinstall step itself needs time and disk space.
  • Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error.
  • There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult.
  • The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit.
  • An introduction of a new build system is difficult.
  • Include paths specified by the -B option are system headers. This may suppress warnings.
  • The parallel build had sporadic failures on some hosts.

This patch removes the make preinstall step. All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.

The new cpukit include directories are:

  • cpukit/include
  • cpukit/score/cpu/@RTEMS_CPU@/include
  • cpukit/libnetworking

The new BSP include directories are:

  • bsps/include
  • bsps/@RTEMS_CPU@/include
  • bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include

There are build tree include directories for generated files.

The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.

The "bootstrap -p" option was removed. The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.

Update #3254.

  • Property mode set to 100644
File size: 2.2 KB
Line 
1/**
2 * @file
3 *
4 * @ingroup ScoreSysState
5 *
6 * @brief System State Handler API
7 */
8
9/*
10 *  COPYRIGHT (c) 1989-2011.
11 *  On-Line Applications Research Corporation (OAR).
12 *
13 *  The license and distribution terms for this file may be
14 *  found in the file LICENSE in this distribution or at
15 *  http://www.rtems.org/license/LICENSE.
16 */
17
18#ifndef _RTEMS_SCORE_SYSSTATE_H
19#define _RTEMS_SCORE_SYSSTATE_H
20
21#include <rtems/score/basedefs.h>
22
23#ifdef __cplusplus
24extern "C" {
25#endif
26
27/**
28 * @defgroup ScoreSysState System State Handler
29 *
30 * @ingroup Score
31 *
32 * @brief Management of the internal system state of RTEMS.
33 */
34/**@{**/
35
36/**
37 * @brief System states.
38 */
39typedef enum {
40  /**
41   * @brief The system is before the end of the first phase of initialization.
42   */
43  SYSTEM_STATE_BEFORE_INITIALIZATION,
44
45  /**
46   * @brief The system is between end of the first phase of initialization but
47   * before  multitasking is started.
48   */
49  SYSTEM_STATE_BEFORE_MULTITASKING,
50
51  /**
52   * @brief The system is up and operating normally.
53   */
54  SYSTEM_STATE_UP,
55
56  /**
57   * @brief The system reached its terminal state.
58   */
59  SYSTEM_STATE_TERMINATED
60} System_state_Codes;
61
62#define SYSTEM_STATE_CODES_FIRST SYSTEM_STATE_BEFORE_INITIALIZATION
63
64#define SYSTEM_STATE_CODES_LAST SYSTEM_STATE_TERMINATED
65
66#if defined(RTEMS_MULTIPROCESSING)
67extern bool _System_state_Is_multiprocessing;
68#endif
69
70extern System_state_Codes _System_state_Current;
71
72RTEMS_INLINE_ROUTINE void _System_state_Set (
73  System_state_Codes state
74)
75{
76  _System_state_Current = state;
77}
78
79RTEMS_INLINE_ROUTINE System_state_Codes _System_state_Get ( void )
80{
81  return _System_state_Current;
82}
83
84RTEMS_INLINE_ROUTINE bool _System_state_Is_before_initialization (
85  System_state_Codes state
86)
87{
88  return (state == SYSTEM_STATE_BEFORE_INITIALIZATION);
89}
90
91RTEMS_INLINE_ROUTINE bool _System_state_Is_before_multitasking (
92  System_state_Codes state
93)
94{
95  return (state == SYSTEM_STATE_BEFORE_MULTITASKING);
96}
97
98RTEMS_INLINE_ROUTINE bool _System_state_Is_up (
99  System_state_Codes state
100)
101{
102  return (state == SYSTEM_STATE_UP);
103}
104
105RTEMS_INLINE_ROUTINE bool _System_state_Is_terminated (
106  System_state_Codes state
107)
108{
109  return (state == SYSTEM_STATE_TERMINATED);
110}
111
112/** @} */
113
114#ifdef __cplusplus
115}
116#endif
117
118#endif
119/* end of include file */
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