source: rtems/cpukit/include/rtems/rtems/barrierimpl.h @ 2afb22b

5
Last change on this file since 2afb22b 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: 2.0 KB
Line 
1/**
2 * @file rtems/rtems/barrier.inl
3 *
4 * @defgroup ClassicBarrier Barriers
5 *
6 * @ingroup ClassicRTEMS
7 * @brief Inline Implementation from Barrier Manager
8 *
9 * This file contains the static inlin implementation of the inlined
10 * routines from the Barrier Manager.
11 */
12
13/*
14 * COPYRIGHT (c) 1989-2008.
15 * On-Line Applications Research Corporation (OAR).
16 *
17 * The license and distribution terms for this file may be
18 * found in the file LICENSE in this distribution or at
19 * http://www.rtems.org/license/LICENSE.
20 */
21
22#ifndef _RTEMS_RTEMS_BARRIERIMPL_H
23#define _RTEMS_RTEMS_BARRIERIMPL_H
24
25#include <rtems/rtems/barrier.h>
26#include <rtems/score/corebarrierimpl.h>
27#include <rtems/score/objectimpl.h>
28
29#ifdef __cplusplus
30extern "C" {
31#endif
32
33/**
34 *  @defgroup ClassicBarrierImpl Classic Barrier Implementation
35 *
36 *  @ingroup ClassicBarrier
37 *
38 *  @{
39 */
40
41/**
42 *  The following defines the information control block used to manage
43 *  this class of objects.
44 */
45extern Objects_Information _Barrier_Information;
46
47/**
48 *  @brief _Barrier_Allocate
49 *
50 *  This function allocates a barrier control block from
51 *  the inactive chain of free barrier control blocks.
52 */
53RTEMS_INLINE_ROUTINE Barrier_Control *_Barrier_Allocate( void )
54{
55  return (Barrier_Control *) _Objects_Allocate( &_Barrier_Information );
56}
57
58/**
59 *  @brief _Barrier_Free
60 *
61 *  This routine frees a barrier control block to the
62 *  inactive chain of free barrier control blocks.
63 */
64RTEMS_INLINE_ROUTINE void _Barrier_Free (
65  Barrier_Control *the_barrier
66)
67{
68  _CORE_barrier_Destroy( &the_barrier->Barrier );
69  _Objects_Free( &_Barrier_Information, &the_barrier->Object );
70}
71
72RTEMS_INLINE_ROUTINE Barrier_Control *_Barrier_Get(
73  Objects_Id            id,
74  Thread_queue_Context *queue_context
75)
76{
77  _Thread_queue_Context_initialize( queue_context );
78  return (Barrier_Control *) _Objects_Get(
79    id,
80    &queue_context->Lock_context.Lock_context,
81    &_Barrier_Information
82  );
83}
84
85/**@}*/
86
87#ifdef __cplusplus
88}
89#endif
90
91#endif
92/*  end of include file */
Note: See TracBrowser for help on using the repository browser.