source: rtems/cpukit/include/rtems/rtems/asrimpl.h @ 78bbe59

5
Last change on this file since 78bbe59 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: 1.7 KB
Line 
1/**
2 * @file
3 *
4 * @ingroup ClassicASRImpl
5 *
6 * @brief Classic ASR Implementation
7 */
8
9/* COPYRIGHT (c) 1989-2008.
10 * On-Line Applications Research Corporation (OAR).
11 *
12 * The license and distribution terms for this file may be
13 * found in the file LICENSE in this distribution or at
14 * http://www.rtems.org/license/LICENSE.
15 */
16
17#ifndef _RTEMS_RTEMS_ASRIMPL_H
18#define _RTEMS_RTEMS_ASRIMPL_H
19
20#include <rtems/rtems/asr.h>
21
22#include <string.h>
23
24#ifdef __cplusplus
25extern "C" {
26#endif
27
28/**
29 * @defgroup ClassicASRImpl Classic ASR Implementation
30 *
31 * @ingroup ClassicASR
32 *
33 * @{
34 */
35
36/**
37 *  @brief ASR_Initialize
38 *
39 *  This routine initializes the given RTEMS_ASR information record.
40 */
41RTEMS_INLINE_ROUTINE void _ASR_Initialize (
42  ASR_Information *asr
43)
44{
45  memset(asr, 0, sizeof(*asr));
46}
47
48/**
49 *  @brief ASR_Is_null_handler
50 *
51 *  This function returns TRUE if the given asr_handler is NULL and
52 *  FALSE otherwise.
53 */
54RTEMS_INLINE_ROUTINE bool _ASR_Is_null_handler (
55  rtems_asr_entry asr_handler
56)
57{
58  return asr_handler == NULL;
59}
60
61RTEMS_INLINE_ROUTINE rtems_signal_set _ASR_Swap_signals( ASR_Information *asr )
62{
63  rtems_signal_set new_signals_posted;
64
65  new_signals_posted   = asr->signals_pending;
66  asr->signals_pending = asr->signals_posted;
67  asr->signals_posted  = new_signals_posted;
68
69  return new_signals_posted;
70}
71
72RTEMS_INLINE_ROUTINE void _ASR_Post_signals(
73  rtems_signal_set  signals,
74  rtems_signal_set *signal_set
75)
76{
77  *signal_set |= signals;
78}
79
80RTEMS_INLINE_ROUTINE rtems_signal_set _ASR_Get_posted_signals(
81  ASR_Information *asr
82)
83{
84  rtems_signal_set signal_set;
85
86  signal_set = asr->signals_posted;
87  asr->signals_posted = 0;
88
89  return signal_set;
90}
91
92/**@}*/
93
94#ifdef __cplusplus
95}
96#endif
97
98#endif
99/* end of include file */
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