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

Last change on this file since 21275b58 was 2afb22b, checked in by Chris Johns <chrisj@…>, on Dec 23, 2017 at 7:18:56 AM

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: 2.4 KB
Line 
1/**
2 * @file
3 *
4 * @brief Inlined Routines Associated with the Manipulation of the
5 * Priority-Based Scheduling Structures
6 *
7 * This inline file contains all of the inlined routines associated with
8 * the manipulation of the priority-based scheduling structures.
9 */
10
11/*
12 *  Copyright (C) 2011 On-Line Applications Research Corporation (OAR).
13 *
14 *  The license and distribution terms for this file may be
15 *  found in the file LICENSE in this distribution or at
16 *  http://www.rtems.org/license/LICENSE.
17 */
18
19#ifndef _RTEMS_SCORE_SCHEDULERSIMPLEIMPL_H
20#define _RTEMS_SCORE_SCHEDULERSIMPLEIMPL_H
21
22#include <rtems/score/schedulersimple.h>
23#include <rtems/score/chainimpl.h>
24#include <rtems/score/schedulerimpl.h>
25
26#ifdef __cplusplus
27extern "C" {
28#endif
29
30/**
31 * @addtogroup ScoreSchedulerSimple
32 */
33/**@{**/
34
35RTEMS_INLINE_ROUTINE Scheduler_simple_Context *
36  _Scheduler_simple_Get_context( const Scheduler_Control *scheduler )
37{
38  return (Scheduler_simple_Context *) _Scheduler_Get_context( scheduler );
39}
40
41RTEMS_INLINE_ROUTINE bool _Scheduler_simple_Priority_less_equal(
42  const void       *to_insert,
43  const Chain_Node *next
44)
45{
46  const unsigned int   *priority_to_insert;
47  const Thread_Control *thread_next;
48
49  priority_to_insert = (const unsigned int *) to_insert;
50  thread_next = (const Thread_Control *) next;
51
52  return *priority_to_insert <= _Thread_Get_priority( thread_next );
53}
54
55RTEMS_INLINE_ROUTINE void _Scheduler_simple_Insert(
56  Chain_Control  *chain,
57  Thread_Control *to_insert,
58  unsigned int    insert_priority
59)
60{
61  _Chain_Insert_ordered_unprotected(
62    chain,
63    &to_insert->Object.Node,
64    &insert_priority,
65    _Scheduler_simple_Priority_less_equal
66  );
67}
68
69RTEMS_INLINE_ROUTINE void _Scheduler_simple_Extract(
70  const Scheduler_Control *scheduler,
71  Thread_Control          *the_thread,
72  Scheduler_Node          *node
73)
74{
75  (void) scheduler;
76  (void) node;
77
78  _Chain_Extract_unprotected( &the_thread->Object.Node );
79}
80
81RTEMS_INLINE_ROUTINE void _Scheduler_simple_Schedule_body(
82  const Scheduler_Control *scheduler,
83  Thread_Control          *the_thread,
84  bool                     force_dispatch
85)
86{
87  Scheduler_simple_Context *context =
88    _Scheduler_simple_Get_context( scheduler );
89  Thread_Control *heir = (Thread_Control *) _Chain_First( &context->Ready );
90
91  ( void ) the_thread;
92
93  _Scheduler_Update_heir( heir, force_dispatch );
94}
95
96/** @} */
97
98#ifdef __cplusplus
99}
100#endif
101
102#endif
103/* end of include file */
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