1 | /* |
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2 | * @(#)error.c 1.2 - 95/08/02 |
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3 | * |
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4 | * |
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5 | * report errors and panics to RTEMS' stderr. |
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6 | * Currently just used by RTEMS monitor. |
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7 | * |
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8 | * |
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9 | * $Id$ |
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10 | */ |
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11 | |
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12 | |
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13 | /* |
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14 | * These routines provide general purpose error reporting. |
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15 | * rtems_error reports an error to stderr and allows use of |
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16 | * printf style formatting. A newline is appended to all messages. |
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17 | * |
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18 | * error_flag can be specified as any of the following: |
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19 | * |
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20 | * RTEMS_ERROR_ERRNO -- include errno text in output |
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21 | * RTEMS_ERROR_PANIC -- halts local system after output |
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22 | * RTEMS_ERROR_ABORT -- abort after output |
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23 | * |
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24 | * It can also include a rtems_status value which can be OR'd |
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25 | * with the above flags. * |
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26 | * |
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27 | * EXAMPLE |
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28 | * #include <rtems.h> |
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29 | * #include <rtems/error.h> |
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30 | * rtems_error(0, "stray interrupt %d", intr); |
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31 | * |
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32 | * EXAMPLE |
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33 | * if ((status = rtems_task_create(...)) != RTEMS_SUCCCESSFUL) |
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34 | * { |
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35 | * rtems_error(status | RTEMS_ERROR_ABORT, |
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36 | * "could not create task"); |
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37 | * } |
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38 | * |
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39 | * EXAMPLE |
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40 | * if ((fd = open(pathname, O_RDNLY)) < 0) |
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41 | * { |
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42 | * rtems_error(FLOSS_ERROR_ERRNO, "open of '%s' failed", pathname); |
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43 | * goto failed; |
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44 | * } |
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45 | */ |
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46 | |
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47 | #include <rtems.h> |
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48 | |
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49 | #include "error.h" |
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50 | #include "assoc.h" |
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51 | |
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52 | #include <stdio.h> |
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53 | #include <stdarg.h> |
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54 | #include <errno.h> |
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55 | #include <stdlib.h> |
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56 | #include <string.h> |
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57 | #include <unistd.h> /* _exit() */ |
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58 | |
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59 | /* bug in hpux <errno.h>: no prototypes unless you are C++ */ |
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60 | #ifdef hpux9 |
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61 | char *strerror(int); |
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62 | #endif |
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63 | |
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64 | extern char *rtems_progname; |
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65 | int rtems_panic_in_progress; |
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66 | |
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67 | rtems_assoc_t rtems_status_assoc[] = { |
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68 | { "successful completion", RTEMS_SUCCESSFUL, }, |
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69 | { "returned from a thread", RTEMS_TASK_EXITTED, }, |
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70 | { "multiprocessing not configured", RTEMS_MP_NOT_CONFIGURED, }, |
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71 | { "invalid object name", RTEMS_INVALID_NAME, }, |
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72 | { "invalid object id", RTEMS_INVALID_ID, }, |
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73 | { "too many", RTEMS_TOO_MANY, }, |
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74 | { "timed out waiting", RTEMS_TIMEOUT, }, |
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75 | { "object deleted while waiting", RTEMS_OBJECT_WAS_DELETED, }, |
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76 | { "specified size was invalid", RTEMS_INVALID_SIZE, }, |
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77 | { "address specified is invalid", RTEMS_INVALID_ADDRESS, }, |
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78 | { "number was invalid", RTEMS_INVALID_NUMBER, }, |
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79 | { "item has not been initialized", RTEMS_NOT_DEFINED, }, |
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80 | { "resources still outstanding", RTEMS_RESOURCE_IN_USE, }, |
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81 | { "request not satisfied", RTEMS_UNSATISFIED, }, |
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82 | { "thread is in wrong state", RTEMS_INCORRECT_STATE, }, |
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83 | { "thread already in state", RTEMS_ALREADY_SUSPENDED, }, |
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84 | { "illegal on calling thread", RTEMS_ILLEGAL_ON_SELF, }, |
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85 | { "illegal for remote object", RTEMS_ILLEGAL_ON_REMOTE_OBJECT, }, |
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86 | { "called from wrong environment", RTEMS_CALLED_FROM_ISR, }, |
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87 | { "invalid thread priority", RTEMS_INVALID_PRIORITY, }, |
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88 | { "invalid date/time", RTEMS_INVALID_CLOCK, }, |
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89 | { "invalid node id", RTEMS_INVALID_NODE, }, |
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90 | { "directive not configured", RTEMS_NOT_CONFIGURED, }, |
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91 | { "not owner of resource", RTEMS_NOT_OWNER_OF_RESOURCE , }, |
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92 | { "directive not implemented", RTEMS_NOT_IMPLEMENTED, }, |
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93 | { "RTEMS inconsistency detected", RTEMS_INTERNAL_ERROR, }, |
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94 | { "internal multiprocessing only", RTEMS_PROXY_BLOCKING, }, |
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95 | { "could not get enough memory", RTEMS_NO_MEMORY, }, |
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96 | { 0, 0, 0 }, |
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97 | }; |
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98 | |
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99 | |
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100 | char * |
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101 | rtems_status_text( |
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102 | rtems_status_code status |
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103 | ) |
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104 | { |
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105 | return rtems_assoc_name_by_local(rtems_status_assoc, status); |
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106 | } |
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107 | |
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108 | |
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109 | static int rtems_verror( |
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110 | unsigned32 error_flag, |
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111 | char *printf_format, |
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112 | va_list arglist |
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113 | ) |
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114 | { |
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115 | int local_errno = 0; |
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116 | int chars_written = 0; |
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117 | rtems_status_code status; |
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118 | |
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119 | if (error_flag & RTEMS_ERROR_PANIC) |
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120 | { |
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121 | rtems_panic_in_progress++; |
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122 | |
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123 | /* disable task switches */ |
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124 | _Thread_Disable_dispatch(); |
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125 | |
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126 | /* don't aggravate things */ |
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127 | if (rtems_panic_in_progress > 2) |
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128 | return 0; |
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129 | } |
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130 | |
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131 | (void) fflush(stdout); /* in case stdout/stderr same */ |
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132 | |
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133 | status = error_flag & ~RTEMS_ERROR_MASK; |
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134 | if (error_flag & RTEMS_ERROR_ERRNO) /* include errno? */ |
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135 | local_errno = errno; |
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136 | |
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137 | if (_Configuration_Is_multiprocessing()) |
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138 | fprintf(stderr, "[%d] ", _Configuration_MP_table->node); |
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139 | |
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140 | if (rtems_progname && *rtems_progname) |
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141 | chars_written += fprintf(stderr, "%s: ", rtems_progname); |
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142 | chars_written += vfprintf(stderr, printf_format, arglist); |
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143 | |
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144 | if (status) |
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145 | chars_written += fprintf(stderr, " (status: %s)", rtems_status_text(status)); |
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146 | |
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147 | if (local_errno) |
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148 | if ((local_errno > 0) && *strerror(local_errno)) |
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149 | chars_written += fprintf(stderr, " (errno: %s)", strerror(local_errno)); |
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150 | else |
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151 | chars_written += fprintf(stderr, " (unknown errno=%d)", local_errno); |
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152 | |
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153 | chars_written += fprintf(stderr, "\n"); |
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154 | |
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155 | (void) fflush(stderr); |
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156 | |
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157 | if (error_flag & (RTEMS_ERROR_PANIC | RTEMS_ERROR_ABORT)) |
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158 | { |
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159 | if (error_flag & RTEMS_ERROR_PANIC) |
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160 | { |
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161 | rtems_error(0, "fatal error, exiting"); |
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162 | _exit(local_errno); |
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163 | } |
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164 | else |
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165 | { |
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166 | rtems_error(0, "fatal error, aborting"); |
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167 | abort(); |
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168 | } |
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169 | } |
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170 | return chars_written; |
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171 | } |
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172 | |
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173 | |
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174 | /* |
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175 | * Report an error. |
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176 | * error_flag is as above; printf_format is a normal |
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177 | * printf(3) format string, with its concommitant arguments. |
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178 | * |
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179 | * Returns the number of characters written. |
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180 | */ |
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181 | |
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182 | int rtems_error( |
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183 | int error_flag, |
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184 | char *printf_format, |
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185 | ... |
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186 | ) |
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187 | { |
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188 | va_list arglist; |
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189 | int chars_written; |
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190 | |
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191 | va_start(arglist, printf_format); |
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192 | chars_written = rtems_verror(error_flag, printf_format, arglist); |
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193 | va_end(arglist); |
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194 | |
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195 | return chars_written; |
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196 | } |
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197 | |
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198 | /* |
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199 | * rtems_panic is shorthand for rtems_error(RTEMS_ERROR_PANIC, ...) |
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200 | */ |
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201 | |
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202 | void rtems_panic( |
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203 | char *printf_format, |
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204 | ... |
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205 | ) |
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206 | { |
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207 | va_list arglist; |
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208 | |
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209 | va_start(arglist, printf_format); |
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210 | (void) rtems_verror(RTEMS_ERROR_PANIC, printf_format, arglist); |
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211 | va_end(arglist); |
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212 | } |
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