1 | /** |
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2 | * @file rtems/score/interr.h |
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3 | * |
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4 | * This include file contains constants and prototypes related |
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5 | * to the Internal Error Handler. |
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6 | */ |
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7 | |
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8 | /* |
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9 | * COPYRIGHT (c) 1989-2009. |
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10 | * On-Line Applications Research Corporation (OAR). |
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11 | * |
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12 | * The license and distribution terms for this file may be |
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13 | * found in the file LICENSE in this distribution or at |
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14 | * http://www.rtems.com/license/LICENSE. |
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15 | */ |
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16 | |
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17 | #ifndef _RTEMS_SCORE_INTERR_H |
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18 | #define _RTEMS_SCORE_INTERR_H |
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19 | |
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20 | #include <stdbool.h> |
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21 | #include <stdint.h> |
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22 | |
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23 | #include <rtems/system.h> |
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24 | |
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25 | /** |
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26 | * @defgroup ScoreIntErr Internal Error Handler |
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27 | * |
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28 | * @ingroup Score |
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29 | * |
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30 | * This handler encapsulates functionality which provides the foundation |
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31 | * Semaphore services used in all of the APIs supported by RTEMS. |
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32 | */ |
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33 | /**@{*/ |
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34 | |
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35 | #ifdef __cplusplus |
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36 | extern "C" { |
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37 | #endif |
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38 | |
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39 | /** |
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40 | * @brief This type lists the possible sources from which an error |
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41 | * can be reported. |
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42 | */ |
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43 | typedef enum { |
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44 | INTERNAL_ERROR_CORE, |
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45 | INTERNAL_ERROR_RTEMS_API, |
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46 | INTERNAL_ERROR_POSIX_API, |
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47 | |
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48 | /** |
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49 | * @brief Fatal source for the block device cache. |
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50 | * |
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51 | * @see rtems_bdbuf_fatal_code. |
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52 | */ |
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53 | RTEMS_FATAL_SOURCE_BDBUF, |
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54 | |
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55 | /** |
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56 | * @brief Fatal source for application specific errors. |
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57 | * |
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58 | * The fatal code is application specific. |
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59 | */ |
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60 | RTEMS_FATAL_SOURCE_APPLICATION, |
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61 | |
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62 | /** |
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63 | * @brief Fatal source of exit(). |
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64 | * |
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65 | * The fatal code is the exit() status code. |
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66 | */ |
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67 | RTEMS_FATAL_SOURCE_EXIT, |
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68 | |
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69 | /** |
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70 | * @brief Fatal source for generic BSP errors. |
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71 | * |
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72 | * The fatal codes are defined in <bsp/bootcard.h>. Examples are interrupt |
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73 | * and exception initialization. |
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74 | * |
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75 | * @see bsp_generic_fatal_code. |
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76 | */ |
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77 | RTEMS_FATAL_SOURCE_BSP_GENERIC, |
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78 | |
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79 | /** |
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80 | * @brief Fatal source for BSP specific errors. |
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81 | * |
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82 | * The fatal code is BSP specific. |
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83 | */ |
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84 | RTEMS_FATAL_SOURCE_BSP_SPECIFIC, |
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85 | |
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86 | /** |
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87 | * @brief The last available fatal source. |
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88 | * |
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89 | * This enum value ensures that the enum type needs at least 32-bits for |
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90 | * architectures with short enums. |
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91 | */ |
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92 | RTEMS_FATAL_SOURCE_LAST = 0xffffffff |
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93 | } Internal_errors_Source; |
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94 | |
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95 | /** |
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96 | * A list of errors which are generated internally by the executive core. |
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97 | */ |
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98 | typedef enum { |
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99 | INTERNAL_ERROR_NO_CONFIGURATION_TABLE, |
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100 | INTERNAL_ERROR_NO_CPU_TABLE, |
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101 | INTERNAL_ERROR_TOO_LITTLE_WORKSPACE, |
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102 | INTERNAL_ERROR_WORKSPACE_ALLOCATION, |
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103 | INTERNAL_ERROR_INTERRUPT_STACK_TOO_SMALL, |
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104 | INTERNAL_ERROR_THREAD_EXITTED, |
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105 | INTERNAL_ERROR_INCONSISTENT_MP_INFORMATION, |
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106 | INTERNAL_ERROR_INVALID_NODE, |
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107 | INTERNAL_ERROR_NO_MPCI, |
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108 | INTERNAL_ERROR_BAD_PACKET, |
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109 | INTERNAL_ERROR_OUT_OF_PACKETS, |
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110 | INTERNAL_ERROR_OUT_OF_GLOBAL_OBJECTS, |
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111 | INTERNAL_ERROR_OUT_OF_PROXIES, |
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112 | INTERNAL_ERROR_INVALID_GLOBAL_ID, |
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113 | INTERNAL_ERROR_BAD_STACK_HOOK, |
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114 | INTERNAL_ERROR_BAD_ATTRIBUTES, |
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115 | INTERNAL_ERROR_IMPLEMENTATION_KEY_CREATE_INCONSISTENCY, |
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116 | INTERNAL_ERROR_IMPLEMENTATION_BLOCKING_OPERATION_CANCEL, |
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117 | INTERNAL_ERROR_MUTEX_OBTAIN_FROM_BAD_STATE, |
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118 | INTERNAL_ERROR_UNLIMITED_AND_MAXIMUM_IS_0, |
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119 | INTERNAL_ERROR_SHUTDOWN_WHEN_NOT_UP, |
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120 | INTERNAL_ERROR_GXX_KEY_ADD_FAILED, |
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121 | INTERNAL_ERROR_GXX_MUTEX_INIT_FAILED, |
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122 | INTERNAL_ERROR_NO_MEMORY_FOR_HEAP, |
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123 | INTERNAL_ERROR_CPU_ISR_INSTALL_VECTOR |
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124 | } Internal_errors_Core_list; |
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125 | |
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126 | typedef uint32_t Internal_errors_t; |
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127 | |
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128 | /** |
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129 | * This type holds the fatal error information. |
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130 | */ |
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131 | typedef struct { |
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132 | /** This is the source of the error. */ |
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133 | Internal_errors_Source the_source; |
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134 | /** This indicates if the error is internal of external. */ |
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135 | bool is_internal; |
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136 | /** This is the error code. */ |
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137 | Internal_errors_t the_error; |
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138 | |
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139 | /** |
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140 | * @brief The internal error nest level. |
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141 | * |
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142 | * This helps to detect recursive calls to _Internal_error_Occurred(). |
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143 | */ |
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144 | uint32_t nest_level; |
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145 | } Internal_errors_Information; |
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146 | |
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147 | /** |
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148 | * When a fatal error occurs, the error information is stored here. |
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149 | */ |
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150 | extern Internal_errors_Information _Internal_errors_What_happened; |
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151 | |
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152 | /** |
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153 | * @brief An internal or fatal error occurred. |
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154 | * |
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155 | * This routine is invoked when the application or the executive itself |
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156 | * determines that a fatal error has occurred. |
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157 | * |
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158 | * This function can be called in every system state provided the following |
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159 | * conditions are true |
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160 | * - the stack pointer is valid, |
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161 | * - the code memory is valid, |
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162 | * - the read-only data is valid, and |
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163 | * - the read-write data is accessible. |
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164 | */ |
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165 | void _Internal_error_Occurred( |
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166 | Internal_errors_Source the_source, |
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167 | bool is_internal, |
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168 | Internal_errors_t the_error |
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169 | ) RTEMS_COMPILER_NO_RETURN_ATTRIBUTE; |
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170 | |
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171 | #ifdef __cplusplus |
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172 | } |
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173 | #endif |
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174 | |
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175 | /**@}*/ |
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176 | |
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177 | #endif |
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178 | /* end of include file */ |
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