[b06e68ef] | 1 | /* |
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[c64e4ed4] | 2 | * report errors and panics to RTEMS' stderr. |
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| 3 | * Currently just used by RTEMS monitor. |
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[b06e68ef] | 4 | * |
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| 5 | * $Id$ |
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| 6 | */ |
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| 7 | |
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| 8 | |
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| 9 | /* |
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| 10 | * These routines provide general purpose error reporting. |
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| 11 | * rtems_error reports an error to stderr and allows use of |
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| 12 | * printf style formatting. A newline is appended to all messages. |
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| 13 | * |
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| 14 | * error_flag can be specified as any of the following: |
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| 15 | * |
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| 16 | * RTEMS_ERROR_ERRNO -- include errno text in output |
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| 17 | * RTEMS_ERROR_PANIC -- halts local system after output |
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| 18 | * RTEMS_ERROR_ABORT -- abort after output |
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| 19 | * |
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| 20 | * It can also include a rtems_status value which can be OR'd |
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| 21 | * with the above flags. * |
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| 22 | * |
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| 23 | * EXAMPLE |
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| 24 | * #include <rtems.h> |
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| 25 | * #include <rtems/error.h> |
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| 26 | * rtems_error(0, "stray interrupt %d", intr); |
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| 27 | * |
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| 28 | * EXAMPLE |
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| 29 | * if ((status = rtems_task_create(...)) != RTEMS_SUCCCESSFUL) |
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| 30 | * { |
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| 31 | * rtems_error(status | RTEMS_ERROR_ABORT, |
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| 32 | * "could not create task"); |
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| 33 | * } |
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| 34 | * |
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| 35 | * EXAMPLE |
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| 36 | * if ((fd = open(pathname, O_RDNLY)) < 0) |
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| 37 | * { |
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[11290355] | 38 | * rtems_error(RTEMS_ERROR_ERRNO, "open of '%s' failed", pathname); |
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[b06e68ef] | 39 | * goto failed; |
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| 40 | * } |
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| 41 | */ |
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| 42 | |
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[e6424462] | 43 | #define __RTEMS_VIOLATE_KERNEL_VISIBILITY__ |
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[b06e68ef] | 44 | #include <rtems.h> |
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| 45 | |
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| 46 | #include "error.h" |
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[6661eaa1] | 47 | #include <rtems/assoc.h> |
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[b06e68ef] | 48 | |
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| 49 | #include <stdio.h> |
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| 50 | #include <stdarg.h> |
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| 51 | #include <errno.h> |
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| 52 | #include <stdlib.h> |
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| 53 | #include <string.h> |
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| 54 | #include <unistd.h> /* _exit() */ |
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| 55 | |
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| 56 | /* bug in hpux <errno.h>: no prototypes unless you are C++ */ |
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| 57 | #ifdef hpux9 |
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| 58 | char *strerror(int); |
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| 59 | #endif |
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| 60 | |
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| 61 | extern char *rtems_progname; |
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| 62 | int rtems_panic_in_progress; |
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| 63 | |
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| 64 | rtems_assoc_t rtems_status_assoc[] = { |
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| 65 | { "successful completion", RTEMS_SUCCESSFUL, }, |
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| 66 | { "returned from a thread", RTEMS_TASK_EXITTED, }, |
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| 67 | { "multiprocessing not configured", RTEMS_MP_NOT_CONFIGURED, }, |
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| 68 | { "invalid object name", RTEMS_INVALID_NAME, }, |
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| 69 | { "invalid object id", RTEMS_INVALID_ID, }, |
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| 70 | { "too many", RTEMS_TOO_MANY, }, |
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| 71 | { "timed out waiting", RTEMS_TIMEOUT, }, |
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| 72 | { "object deleted while waiting", RTEMS_OBJECT_WAS_DELETED, }, |
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| 73 | { "specified size was invalid", RTEMS_INVALID_SIZE, }, |
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| 74 | { "address specified is invalid", RTEMS_INVALID_ADDRESS, }, |
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| 75 | { "number was invalid", RTEMS_INVALID_NUMBER, }, |
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| 76 | { "item has not been initialized", RTEMS_NOT_DEFINED, }, |
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| 77 | { "resources still outstanding", RTEMS_RESOURCE_IN_USE, }, |
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| 78 | { "request not satisfied", RTEMS_UNSATISFIED, }, |
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| 79 | { "thread is in wrong state", RTEMS_INCORRECT_STATE, }, |
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| 80 | { "thread already in state", RTEMS_ALREADY_SUSPENDED, }, |
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| 81 | { "illegal on calling thread", RTEMS_ILLEGAL_ON_SELF, }, |
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| 82 | { "illegal for remote object", RTEMS_ILLEGAL_ON_REMOTE_OBJECT, }, |
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| 83 | { "called from wrong environment", RTEMS_CALLED_FROM_ISR, }, |
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| 84 | { "invalid thread priority", RTEMS_INVALID_PRIORITY, }, |
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| 85 | { "invalid date/time", RTEMS_INVALID_CLOCK, }, |
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| 86 | { "invalid node id", RTEMS_INVALID_NODE, }, |
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| 87 | { "directive not configured", RTEMS_NOT_CONFIGURED, }, |
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| 88 | { "not owner of resource", RTEMS_NOT_OWNER_OF_RESOURCE , }, |
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| 89 | { "directive not implemented", RTEMS_NOT_IMPLEMENTED, }, |
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| 90 | { "RTEMS inconsistency detected", RTEMS_INTERNAL_ERROR, }, |
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| 91 | { "could not get enough memory", RTEMS_NO_MEMORY, }, |
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[d9230ea] | 92 | { "driver IO error", RTEMS_IO_ERROR, }, |
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[3a4ae6c] | 93 | { "internal multiprocessing only", THREAD_STATUS_PROXY_BLOCKING, }, |
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[b06e68ef] | 94 | { 0, 0, 0 }, |
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| 95 | }; |
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| 96 | |
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| 97 | |
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[c64e4ed4] | 98 | const char * |
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[b06e68ef] | 99 | rtems_status_text( |
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| 100 | rtems_status_code status |
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| 101 | ) |
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| 102 | { |
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| 103 | return rtems_assoc_name_by_local(rtems_status_assoc, status); |
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| 104 | } |
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| 105 | |
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| 106 | |
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| 107 | static int rtems_verror( |
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| 108 | unsigned32 error_flag, |
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[c64e4ed4] | 109 | const char *printf_format, |
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[b06e68ef] | 110 | va_list arglist |
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| 111 | ) |
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| 112 | { |
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| 113 | int local_errno = 0; |
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| 114 | int chars_written = 0; |
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| 115 | rtems_status_code status; |
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| 116 | |
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| 117 | if (error_flag & RTEMS_ERROR_PANIC) |
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| 118 | { |
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[85734b3] | 119 | if (rtems_panic_in_progress++) |
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| 120 | _Thread_Disable_dispatch(); /* disable task switches */ |
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[b06e68ef] | 121 | |
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| 122 | /* don't aggravate things */ |
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| 123 | if (rtems_panic_in_progress > 2) |
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| 124 | return 0; |
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| 125 | } |
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| 126 | |
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| 127 | (void) fflush(stdout); /* in case stdout/stderr same */ |
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| 128 | |
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| 129 | status = error_flag & ~RTEMS_ERROR_MASK; |
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| 130 | if (error_flag & RTEMS_ERROR_ERRNO) /* include errno? */ |
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| 131 | local_errno = errno; |
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| 132 | |
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[3a4ae6c] | 133 | if (_System_state_Is_multiprocessing) |
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[b06e68ef] | 134 | fprintf(stderr, "[%d] ", _Configuration_MP_table->node); |
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| 135 | |
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| 136 | if (rtems_progname && *rtems_progname) |
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| 137 | chars_written += fprintf(stderr, "%s: ", rtems_progname); |
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| 138 | chars_written += vfprintf(stderr, printf_format, arglist); |
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| 139 | |
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| 140 | if (status) |
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| 141 | chars_written += fprintf(stderr, " (status: %s)", rtems_status_text(status)); |
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| 142 | |
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| 143 | if (local_errno) |
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[2936b425] | 144 | { |
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| 145 | if ((local_errno > 0) && *strerror(local_errno)) |
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| 146 | chars_written += fprintf(stderr, " (errno: %s)", strerror(local_errno)); |
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| 147 | else |
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| 148 | chars_written += fprintf(stderr, " (unknown errno=%d)", local_errno); |
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| 149 | } |
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| 150 | |
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[b06e68ef] | 151 | chars_written += fprintf(stderr, "\n"); |
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| 152 | |
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| 153 | (void) fflush(stderr); |
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| 154 | |
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| 155 | if (error_flag & (RTEMS_ERROR_PANIC | RTEMS_ERROR_ABORT)) |
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| 156 | { |
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| 157 | if (error_flag & RTEMS_ERROR_PANIC) |
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| 158 | { |
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| 159 | rtems_error(0, "fatal error, exiting"); |
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| 160 | _exit(local_errno); |
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| 161 | } |
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| 162 | else |
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| 163 | { |
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| 164 | rtems_error(0, "fatal error, aborting"); |
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| 165 | abort(); |
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| 166 | } |
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| 167 | } |
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| 168 | return chars_written; |
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| 169 | } |
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| 170 | |
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| 171 | |
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| 172 | /* |
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| 173 | * Report an error. |
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| 174 | * error_flag is as above; printf_format is a normal |
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| 175 | * printf(3) format string, with its concommitant arguments. |
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| 176 | * |
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| 177 | * Returns the number of characters written. |
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| 178 | */ |
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| 179 | |
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| 180 | int rtems_error( |
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| 181 | int error_flag, |
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[c64e4ed4] | 182 | const char *printf_format, |
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[b06e68ef] | 183 | ... |
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| 184 | ) |
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| 185 | { |
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| 186 | va_list arglist; |
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| 187 | int chars_written; |
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| 188 | |
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| 189 | va_start(arglist, printf_format); |
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| 190 | chars_written = rtems_verror(error_flag, printf_format, arglist); |
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| 191 | va_end(arglist); |
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| 192 | |
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| 193 | return chars_written; |
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| 194 | } |
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| 195 | |
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| 196 | /* |
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| 197 | * rtems_panic is shorthand for rtems_error(RTEMS_ERROR_PANIC, ...) |
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| 198 | */ |
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| 199 | |
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| 200 | void rtems_panic( |
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[c64e4ed4] | 201 | const char *printf_format, |
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[b06e68ef] | 202 | ... |
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| 203 | ) |
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| 204 | { |
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| 205 | va_list arglist; |
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| 206 | |
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| 207 | va_start(arglist, printf_format); |
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| 208 | (void) rtems_verror(RTEMS_ERROR_PANIC, printf_format, arglist); |
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| 209 | va_end(arglist); |
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| 210 | } |
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