source: rtems/cpukit/score/include/rtems/system.h @ 860c34e

4.104.114.9
Last change on this file since 860c34e was 860c34e, checked in by Glenn Humphrey <glenn.humphrey@…>, on Nov 30, 2007 at 8:34:13 PM

2007-11-30 Glenn Humphrey <glenn.humphrey@…>

  • posix/include/rtems/posix/mutex.h, posix/include/rtems/posix/semaphore.h, posix/src/cancel.c, posix/src/conddestroy.c, posix/src/condsignalsupp.c, posix/src/condwaitsupp.c, posix/src/keydelete.c, posix/src/keygetspecific.c, posix/src/keysetspecific.c, posix/src/mqueueclose.c, posix/src/mqueuegetattr.c, posix/src/mqueuenotify.c, posix/src/mqueuerecvsupp.c, posix/src/mqueuesendsupp.c, posix/src/mqueuesetattr.c, posix/src/mqueuetranslatereturncode.c, posix/src/mutexdestroy.c, posix/src/mutexgetprioceiling.c, posix/src/mutexinit.c, posix/src/mutexlocksupp.c, posix/src/mutexsetprioceiling.c, posix/src/mutexunlock.c, posix/src/pbarrierdestroy.c, posix/src/pbarriertranslatereturncode.c, posix/src/pbarrierwait.c, posix/src/prwlockdestroy.c, posix/src/prwlockrdlock.c, posix/src/prwlocktimedrdlock.c, posix/src/prwlocktimedwrlock.c, posix/src/prwlocktranslatereturncode.c, posix/src/prwlocktryrdlock.c, posix/src/prwlocktrywrlock.c, posix/src/prwlockunlock.c, posix/src/prwlockwrlock.c, posix/src/pspindestroy.c, posix/src/pspinlock.c, posix/src/pspinlocktranslatereturncode.c, posix/src/pspintrylock.c, posix/src/pspinunlock.c, posix/src/pthreaddetach.c, posix/src/pthreadequal.c, posix/src/pthreadgetschedparam.c, posix/src/pthreadjoin.c, posix/src/pthreadkill.c, posix/src/pthreadsetschedparam.c, posix/src/ptimer1.c, posix/src/semaphorewaitsupp.c, posix/src/semclose.c, posix/src/semdestroy.c, posix/src/semgetvalue.c, posix/src/sempost.c, posix/src/types.c, rtems/src/msgqtranslatereturncode.c, rtems/src/semobtain.c, rtems/src/timerfireafter.c, score/include/rtems/system.h, score/include/rtems/score/corebarrier.h, score/include/rtems/score/coremsg.h, score/include/rtems/score/coremutex.h, score/include/rtems/score/coresem.h: Restructed to move the OBJECTS_LOCAL case to the top of the switch statement and eliminate the fall-through return of POSIX_BOTTOM_REACHED. These changes produced simplier assembly code and allowed for complete test coverage. Also applied some consistency to the functions that translate the core status codes to POSIX status codes.
  • posix/src/mutextranslatereturncode.c, posix/src/semaphoretranslatereturncode.c: New files.
  • posix/src/mutexfromcorestatus.c: Removed.
  • Property mode set to 100644
File size: 7.1 KB
Line 
1/**
2 *  @file  rtems/system.h
3 *
4 *  This include file contains information that is included in every
5 *  function in the executive.  This must be the first include file
6 *  included in all internal RTEMS files.
7 */
8
9/*
10 *  COPYRIGHT (c) 1989-2007.
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.com/license/LICENSE.
16 *
17 *  $Id$
18 */
19
20#ifndef _RTEMS_SYSTEM_H
21#define _RTEMS_SYSTEM_H
22
23#ifdef __cplusplus
24extern "C" {
25#endif
26
27/*
28 *  The cpu options include file defines all cpu dependent
29 *  parameters for this build of RTEMS.  It must be included
30 *  first so the basic macro definitions are in place.
31 */
32#include <rtems/score/cpuopts.h>
33
34/**
35 *  The following ensures that all data is declared in the space
36 *  of the initialization routine for either the Initialization Manager
37 *  or the initialization file for the appropriate API.  It is
38 *  referenced as "external" in every other file.
39 */
40#ifdef SCORE_INIT
41#undef  SCORE_EXTERN
42#define SCORE_EXTERN
43#else
44#undef  SCORE_EXTERN
45#define SCORE_EXTERN  extern
46#endif
47
48/**
49 *  The following ensures that all data is declared in the space
50 *  of the initialization routine for either the Initialization Manager
51 *  or the initialization file for the appropriate API.  It is
52 *  referenced as "external" in every other file.
53 */
54#ifdef SAPI_INIT
55#undef  SAPI_EXTERN
56#define SAPI_EXTERN
57#else
58#undef  SAPI_EXTERN
59#define SAPI_EXTERN  extern
60#endif
61
62/**
63 *  The following ensures that all data is declared in the space
64 *  of the initialization routine for either the Initialization Manager
65 *  or the initialization file for the appropriate API.  It is
66 *  referenced as "external" in every other file.
67 */
68#ifdef RTEMS_API_INIT
69#undef  RTEMS_EXTERN
70#define RTEMS_EXTERN
71#else
72#undef  RTEMS_EXTERN
73#define RTEMS_EXTERN  extern
74#endif
75
76/**
77 *  The following ensures that all data is declared in the space
78 *  of the initialization routine for either the Initialization Manager
79 *  or the initialization file for the appropriate API.  It is
80 *  referenced as "external" in every other file.
81 */
82#ifdef POSIX_API_INIT
83#undef  POSIX_EXTERN
84#define POSIX_EXTERN
85#else
86#undef  POSIX_EXTERN
87#define POSIX_EXTERN  extern
88#endif
89
90/**
91 *  The following ensures that all data is declared in the space
92 *  of the initialization routine for either the Initialization Manager
93 *  or the initialization file for the appropriate API.  It is
94 *  referenced as "external" in every other file.
95 */
96#ifdef ITRON_API_INIT
97#undef  ITRON_EXTERN
98#define ITRON_EXTERN
99#else
100#undef  ITRON_EXTERN
101#define ITRON_EXTERN  extern
102#endif
103
104/**
105 *  The following (in conjunction with compiler arguments) are used
106 *  to choose between the use of static inline functions and macro
107 *  functions.   The static inline implementation allows better
108 *  type checking with no cost in code size or execution speed.
109 */
110#ifdef __GNUC__
111#  define RTEMS_INLINE_ROUTINE static __inline__
112#else
113#  define RTEMS_INLINE_ROUTINE static inline
114#endif
115
116/**
117 *  The following macro is a compiler specific way to ensure that memory
118 *  writes are not reordered around certian points.  This specifically can
119 *  impact interrupt disable and thread dispatching critical sections.
120 */
121#ifdef __GNUC__
122  #define RTEMS_COMPILER_MEMORY_BARRIER() asm volatile("" ::: "memory")
123#else
124  #define RTEMS_COMPILER_MEMORY_BARRIER()
125#endif
126
127/**
128 *  The following macro is a compiler specific way to indicate that
129 *  the method will NOT return to the caller.  This can assist the
130 *  compiler in code generation and avoid unreachable paths.  This
131 *  can impact the code generated following calls to
132 *  rtems_fatal_error_occurred and _Internal_error_Occurred.
133 */
134#ifdef __GNUC__
135  #define RTEMS_COMPILER_NO_RETURN_ATTRIBUTE \
136      __attribute__ ((noreturn))
137#else
138  #define RTEMS_COMPILER_NO_RETURN_ATTRIBUTE
139#endif
140
141#ifdef RTEMS_POSIX_API
142/** The following is used by the POSIX implementation to catch bad paths.  */
143int POSIX_NOT_IMPLEMENTED( void );
144#endif
145
146/*
147 *  Include a base set of files.
148 */
149
150/**
151 * XXX: Eventually proc_ptr needs to disappear!!!
152 */
153typedef void * proc_ptr;
154
155#include <stddef.h>
156
157#if !defined( TRUE ) || (TRUE != 1)
158/**  Boolean constant TRUE */
159#undef TRUE
160#define TRUE     (1)
161#endif
162
163#if !defined( FALSE ) || (FALSE != 0)
164/**  Boolean constant TRUE */
165#undef FALSE
166#define FALSE     (0)
167#endif
168
169#include <rtems/stdint.h>
170#include <rtems/score/cpu.h>        /* processor specific information */
171
172/**
173 *  This macro is used to obtain the offset of a field in a structure.
174 */
175#define RTEMS_offsetof(type, field) \
176       ((uint32_t  ) &(((type *) 0)->field))
177
178/**
179 *  The following is the extern for the RTEMS version string.
180 *
181 *  @note The contents of this string are CPU specific.
182 */
183extern const char _RTEMS_version[];
184
185/**
186 *  The following is the extern for the RTEMS copyright string.
187 */
188extern const char _Copyright_Notice[];
189
190/**
191 *  The following defines the CPU dependent information table.
192 */
193SCORE_EXTERN rtems_cpu_table _CPU_Table;
194
195/*
196 *  Macros to access CPU Table fields required by ALL ports.
197 */
198
199/** This macro assists in accessing the CPU Specific Configuration Table. */
200#define rtems_cpu_configuration_get_table() (&_CPU_Table)
201
202
203/** This macro assists in accessing the pretasking BSP hook. */
204#define rtems_cpu_configuration_get_pretasking_hook() \
205   (_CPU_Table.pretasking_hook)
206
207/** This macro assists in accessing the predriver BSP hook. */
208#define rtems_cpu_configuration_get_predriver_hook() \
209   (_CPU_Table.predriver_hook)
210
211/** This macro assists in accessing the postdriver BSP hook. */
212#define rtems_cpu_configuration_get_postdriver_hook() \
213   (_CPU_Table.postdriver_hook)
214
215/** This macro assists in accessing the BSP specific IDLE task entry point. */
216#define rtems_cpu_configuration_get_idle_task() \
217   (_CPU_Table.idle_task)
218
219/**
220  * This macro assists in accessing the field which indicates whether
221  * RTEMS is responsible for zeroing the Executive Workspace.
222  */
223#define rtems_cpu_configuration_get_do_zero_of_workspace() \
224   (_CPU_Table.do_zero_of_workspace)
225
226/** This macro assists in accessing the IDLE task stack point size. */
227#define rtems_cpu_configuration_get_idle_task_stack_size() \
228   (_CPU_Table.idle_task_stack_size)
229
230/** This macro assists in accessing the interrupt stack size. */
231#define rtems_cpu_configuration_get_interrupt_stack_size() \
232   (_CPU_Table.interrupt_stack_size)
233
234/** This macro assists in accessing the size of the MPCI receiver server. */
235#define rtems_cpu_configuration_get_extra_mpci_receive_server_stack() \
236   (_CPU_Table.extra_mpci_receive_server_stack)
237
238/** This macro assists in accessing the BSP stack allocation hook. */
239#define rtems_cpu_configuration_get_stack_allocate_hook() \
240   (_CPU_Table.stack_allocate_hook)
241
242/** This macro assists in accessing the BSP stack allocation free hook. */
243#define rtems_cpu_configuration_get_stack_free_hook() \
244   (_CPU_Table.stack_free_hook)
245
246/** This macro defines the maximum length of a Classic API name. */
247#define RTEMS_MAXIMUM_NAME_LENGTH sizeof(rtems_name)
248
249#ifdef __cplusplus
250}
251#endif
252
253#endif
254/* end of include file */
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