1 | /** |
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2 | * @file rtems/system.h |
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3 | * |
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4 | * This include file contains information that is included in every |
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5 | * function in the executive. This must be the first include file |
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6 | * included in all internal RTEMS files. |
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7 | */ |
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8 | |
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9 | /* |
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10 | * COPYRIGHT (c) 1989-2006. |
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11 | * On-Line Applications Research Corporation (OAR). |
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12 | * |
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13 | * The license and distribution terms for this file may be |
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14 | * found in the file LICENSE in this distribution or at |
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15 | * http://www.rtems.com/license/LICENSE. |
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16 | * |
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17 | * $Id$ |
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18 | */ |
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19 | |
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20 | #ifndef _RTEMS_SYSTEM_H |
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21 | #define _RTEMS_SYSTEM_H |
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22 | |
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23 | #ifdef __cplusplus |
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24 | extern "C" { |
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25 | #endif |
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26 | |
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27 | /** This macro defines the major version portion of an RTEMS release. |
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28 | * |
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29 | * @note Use this macros to test for features in specific releases. |
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30 | */ |
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31 | #define __RTEMS_MAJOR__ 4 |
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32 | |
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33 | /** This macro defines the minor version portion of an RTEMS release. |
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34 | * |
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35 | * @note Use this macros to test for features in specific releases. |
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36 | */ |
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37 | #define __RTEMS_MINOR__ 6 |
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38 | |
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39 | /** This macro defines the revision version portion of an RTEMS release. |
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40 | * |
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41 | * @note Use this macros to test for features in specific releases. |
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42 | */ |
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43 | #define __RTEMS_REVISION__ 99 |
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44 | |
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45 | /* |
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46 | * The cpu options include file defines all cpu dependent |
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47 | * parameters for this build of RTEMS. It must be included |
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48 | * first so the basic macro definitions are in place. |
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49 | */ |
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50 | #include <rtems/score/cpuopts.h> |
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51 | |
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52 | /** |
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53 | * The following ensures that all data is declared in the space |
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54 | * of the initialization routine for either the Initialization Manager |
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55 | * or the initialization file for the appropriate API. It is |
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56 | * referenced as "external" in every other file. |
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57 | */ |
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58 | #ifdef SCORE_INIT |
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59 | #undef SCORE_EXTERN |
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60 | #define SCORE_EXTERN |
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61 | #else |
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62 | #undef SCORE_EXTERN |
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63 | #define SCORE_EXTERN extern |
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64 | #endif |
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65 | |
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66 | /** |
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67 | * The following ensures that all data is declared in the space |
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68 | * of the initialization routine for either the Initialization Manager |
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69 | * or the initialization file for the appropriate API. It is |
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70 | * referenced as "external" in every other file. |
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71 | */ |
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72 | #ifdef SAPI_INIT |
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73 | #undef SAPI_EXTERN |
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74 | #define SAPI_EXTERN |
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75 | #else |
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76 | #undef SAPI_EXTERN |
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77 | #define SAPI_EXTERN extern |
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78 | #endif |
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79 | |
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80 | /** |
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81 | * The following ensures that all data is declared in the space |
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82 | * of the initialization routine for either the Initialization Manager |
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83 | * or the initialization file for the appropriate API. It is |
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84 | * referenced as "external" in every other file. |
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85 | */ |
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86 | #ifdef RTEMS_API_INIT |
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87 | #undef RTEMS_EXTERN |
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88 | #define RTEMS_EXTERN |
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89 | #else |
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90 | #undef RTEMS_EXTERN |
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91 | #define RTEMS_EXTERN extern |
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92 | #endif |
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93 | |
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94 | /** |
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95 | * The following ensures that all data is declared in the space |
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96 | * of the initialization routine for either the Initialization Manager |
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97 | * or the initialization file for the appropriate API. It is |
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98 | * referenced as "external" in every other file. |
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99 | */ |
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100 | #ifdef POSIX_API_INIT |
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101 | #undef POSIX_EXTERN |
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102 | #define POSIX_EXTERN |
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103 | #else |
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104 | #undef POSIX_EXTERN |
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105 | #define POSIX_EXTERN extern |
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106 | #endif |
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107 | |
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108 | /** |
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109 | * The following ensures that all data is declared in the space |
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110 | * of the initialization routine for either the Initialization Manager |
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111 | * or the initialization file for the appropriate API. It is |
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112 | * referenced as "external" in every other file. |
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113 | */ |
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114 | #ifdef ITRON_API_INIT |
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115 | #undef ITRON_EXTERN |
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116 | #define ITRON_EXTERN |
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117 | #else |
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118 | #undef ITRON_EXTERN |
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119 | #define ITRON_EXTERN extern |
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120 | #endif |
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121 | |
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122 | /** |
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123 | * The following (in conjunction with compiler arguments) are used |
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124 | * to choose between the use of static inline functions and macro |
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125 | * functions. The static inline implementation allows better |
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126 | * type checking with no cost in code size or execution speed. |
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127 | */ |
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128 | #ifdef RTEMS_INLINES |
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129 | # ifdef __GNUC__ |
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130 | # define RTEMS_INLINE_ROUTINE static __inline__ |
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131 | # else |
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132 | # define RTEMS_INLINE_ROUTINE static inline |
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133 | # endif |
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134 | #else |
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135 | # define RTEMS_INLINE_ROUTINE |
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136 | #endif |
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137 | |
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138 | /** |
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139 | * The following macro is a compiler specific way to ensure that memory |
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140 | * writes are not reordered around certian points. This specifically can |
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141 | * impact interrupt disable and thread dispatching critical sections. |
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142 | */ |
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143 | #ifdef __GNUC__ |
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144 | #define RTEMS_COMPILER_MEMORY_BARRIER() asm volatile("" ::: "memory") |
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145 | #else |
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146 | #define RTEMS_COMPILER_MEMORY_BARRIER() |
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147 | #endif |
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148 | |
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149 | #ifdef RTEMS_POSIX_API |
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150 | /** The following is used by the POSIX implementation to catch bad paths. */ |
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151 | int POSIX_MP_NOT_IMPLEMENTED( void ); |
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152 | |
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153 | /** The following is used by the POSIX implementation to catch bad paths. */ |
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154 | int POSIX_NOT_IMPLEMENTED( void ); |
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155 | |
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156 | /** The following is used by the POSIX implementation to catch bad paths. */ |
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157 | int POSIX_BOTTOM_REACHED( void ); |
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158 | #endif |
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159 | |
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160 | /* |
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161 | * Include a base set of files. |
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162 | */ |
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163 | |
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164 | /** |
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165 | * XXX: Eventually proc_ptr needs to disappear!!! |
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166 | */ |
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167 | typedef void * proc_ptr; |
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168 | |
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169 | #include <stddef.h> |
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170 | |
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171 | #if !defined( TRUE ) || (TRUE != 1) |
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172 | /** Boolean constant TRUE */ |
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173 | #undef TRUE |
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174 | #define TRUE (1) |
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175 | #endif |
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176 | |
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177 | #if !defined( FALSE ) || (FALSE != 0) |
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178 | /** Boolean constant TRUE */ |
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179 | #undef FALSE |
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180 | #define FALSE (0) |
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181 | #endif |
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182 | |
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183 | #include <rtems/stdint.h> |
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184 | #include <rtems/score/cpu.h> /* processor specific information */ |
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185 | |
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186 | /** |
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187 | * This macro is used to obtain the offset of a field in a structure. |
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188 | */ |
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189 | #define RTEMS_offsetof(type, field) \ |
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190 | ((uint32_t ) &(((type *) 0)->field)) |
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191 | |
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192 | /** |
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193 | * The following is the extern for the RTEMS version string. |
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194 | * |
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195 | * @note The contents of this string are CPU specific. |
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196 | */ |
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197 | extern const char _RTEMS_version[]; |
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198 | |
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199 | /** |
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200 | * The following is the extern for the RTEMS copyright string. |
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201 | */ |
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202 | extern const char _Copyright_Notice[]; |
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203 | |
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204 | /** |
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205 | * The following defines the CPU dependent information table. |
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206 | */ |
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207 | SCORE_EXTERN rtems_cpu_table _CPU_Table; |
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208 | |
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209 | /* |
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210 | * Macros to access CPU Table fields required by ALL ports. |
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211 | */ |
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212 | |
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213 | /** This macro assists in accessing the CPU Specific Configuration Table. */ |
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214 | #define rtems_cpu_configuration_get_table() (&_CPU_Table) |
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215 | |
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216 | |
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217 | /** This macro assists in accessing the pretasking BSP hook. */ |
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218 | #define rtems_cpu_configuration_get_pretasking_hook() \ |
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219 | (_CPU_Table.pretasking_hook) |
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220 | |
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221 | /** This macro assists in accessing the predriver BSP hook. */ |
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222 | #define rtems_cpu_configuration_get_predriver_hook() \ |
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223 | (_CPU_Table.predriver_hook) |
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224 | |
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225 | /** This macro assists in accessing the postdriver BSP hook. */ |
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226 | #define rtems_cpu_configuration_get_postdriver_hook() \ |
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227 | (_CPU_Table.postdriver_hook) |
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228 | |
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229 | /** This macro assists in accessing the BSP specific IDLE task entry point. */ |
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230 | #define rtems_cpu_configuration_get_idle_task() \ |
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231 | (_CPU_Table.idle_task) |
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232 | |
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233 | /** |
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234 | * This macro assists in accessing the field which indicates whether |
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235 | * RTEMS is responsible for zeroing the Executive Workspace. |
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236 | */ |
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237 | #define rtems_cpu_configuration_get_do_zero_of_workspace() \ |
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238 | (_CPU_Table.do_zero_of_workspace) |
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239 | |
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240 | /** This macro assists in accessing the IDLE task stack point size. */ |
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241 | #define rtems_cpu_configuration_get_idle_task_stack_size() \ |
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242 | (_CPU_Table.idle_task_stack_size) |
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243 | |
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244 | /** This macro assists in accessing the interrupt stack size. */ |
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245 | #define rtems_cpu_configuration_get_interrupt_stack_size() \ |
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246 | (_CPU_Table.interrupt_stack_size) |
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247 | |
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248 | /** This macro assists in accessing the size of the MPCI receiver server. */ |
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249 | #define rtems_cpu_configuration_get_extra_mpci_receive_server_stack() \ |
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250 | (_CPU_Table.extra_mpci_receive_server_stack) |
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251 | |
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252 | /** This macro assists in accessing the BSP stack allocation hook. */ |
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253 | #define rtems_cpu_configuration_get_stack_allocate_hook() \ |
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254 | (_CPU_Table.stack_allocate_hook) |
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255 | |
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256 | /** This macro assists in accessing the BSP stack allocation free hook. */ |
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257 | #define rtems_cpu_configuration_get_stack_free_hook() \ |
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258 | (_CPU_Table.stack_free_hook) |
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259 | |
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260 | /** This macro defines the maximum length of a Classic API name. */ |
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261 | #define RTEMS_MAXIMUM_NAME_LENGTH sizeof(rtems_name) |
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262 | |
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263 | #ifdef __cplusplus |
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264 | } |
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265 | #endif |
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266 | |
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267 | #endif |
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268 | /* end of include file */ |
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