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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [error.c] - Blame information for rev 173

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1 30 unneback
/*
2
 *  report errors and panics to RTEMS' stderr.
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 *  Currently just used by RTEMS monitor.
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 *
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 *  $Id: error.c,v 1.2 2001-09-27 12:01:15 chris Exp $
6
 */
7
 
8
 
9
/*
10
 * These routines provide general purpose error reporting.
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 * rtems_error reports an error to stderr and allows use of
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 * printf style formatting.  A newline is appended to all messages.
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 *
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 * error_flag can be specified as any of the following:
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 *
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 *      RTEMS_ERROR_ERRNO       -- include errno text in output
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 *      RTEMS_ERROR_PANIC       -- halts local system after output
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 *      RTEMS_ERROR_ABORT       -- abort after output
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 *
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 * It can also include a rtems_status value which can be OR'd
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 * with the above flags. *
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 *
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 * EXAMPLE
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 *      #include <rtems.h>
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 *      #include <rtems/error.h>
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 *      rtems_error(0, "stray interrupt %d", intr);
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 *
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 * EXAMPLE
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 *        if ((status = rtems_task_create(...)) != RTEMS_SUCCCESSFUL)
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 *        {
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 *            rtems_error(status | RTEMS_ERROR_ABORT,
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 *                        "could not create task");
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 *        }
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 *
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 * EXAMPLE
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 *        if ((fd = open(pathname, O_RDNLY)) < 0)
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 *        {
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 *            rtems_error(RTEMS_ERROR_ERRNO, "open of '%s' failed", pathname);
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 *            goto failed;
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 *        }
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 */
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#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__
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#include <rtems.h>
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#include "error.h"
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#include <rtems/assoc.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>             /* _exit() */
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/* bug in hpux <errno.h>: no prototypes unless you are C++ */
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#ifdef hpux9
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char *strerror(int);
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#endif
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extern char *rtems_progname;
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int          rtems_panic_in_progress;
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rtems_assoc_t rtems_status_assoc[] = {
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    { "successful completion",              RTEMS_SUCCESSFUL, },
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    { "returned from a thread",             RTEMS_TASK_EXITTED, },
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    { "multiprocessing not configured",     RTEMS_MP_NOT_CONFIGURED, },
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    { "invalid object name",                RTEMS_INVALID_NAME, },
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    { "invalid object id",                  RTEMS_INVALID_ID, },
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    { "too many",                           RTEMS_TOO_MANY, },
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    { "timed out waiting",                  RTEMS_TIMEOUT, },
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    { "object deleted while waiting",       RTEMS_OBJECT_WAS_DELETED, },
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    { "specified size was invalid",         RTEMS_INVALID_SIZE, },
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    { "address specified is invalid",       RTEMS_INVALID_ADDRESS, },
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    { "number was invalid",                 RTEMS_INVALID_NUMBER, },
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    { "item has not been initialized",      RTEMS_NOT_DEFINED, },
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    { "resources still outstanding",        RTEMS_RESOURCE_IN_USE, },
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    { "request not satisfied",              RTEMS_UNSATISFIED, },
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    { "thread is in wrong state",           RTEMS_INCORRECT_STATE, },
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    { "thread already in state",            RTEMS_ALREADY_SUSPENDED, },
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    { "illegal on calling thread",          RTEMS_ILLEGAL_ON_SELF, },
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    { "illegal for remote object",          RTEMS_ILLEGAL_ON_REMOTE_OBJECT, },
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    { "called from wrong environment",      RTEMS_CALLED_FROM_ISR, },
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    { "invalid thread priority",            RTEMS_INVALID_PRIORITY, },
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    { "invalid date/time",                  RTEMS_INVALID_CLOCK, },
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    { "invalid node id",                    RTEMS_INVALID_NODE, },
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    { "directive not configured",           RTEMS_NOT_CONFIGURED, },
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    { "not owner of resource",              RTEMS_NOT_OWNER_OF_RESOURCE , },
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    { "directive not implemented",          RTEMS_NOT_IMPLEMENTED, },
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    { "RTEMS inconsistency detected",       RTEMS_INTERNAL_ERROR, },
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    { "could not get enough memory",        RTEMS_NO_MEMORY, },
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    { "driver IO error",                    RTEMS_IO_ERROR, },
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    { "internal multiprocessing only",      THREAD_STATUS_PROXY_BLOCKING, },
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    { 0, 0, 0 },
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};
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const char *
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rtems_status_text(
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    rtems_status_code status
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)
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{
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    return rtems_assoc_name_by_local(rtems_status_assoc, status);
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}
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static int rtems_verror(
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    unsigned32   error_flag,
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    const char   *printf_format,
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    va_list      arglist
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)
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{
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    int               local_errno = 0;
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    int               chars_written = 0;
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    rtems_status_code status;
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    if (error_flag & RTEMS_ERROR_PANIC)
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    {
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        if (rtems_panic_in_progress++)
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            _Thread_Disable_dispatch();       /* disable task switches */
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        /* don't aggravate things */
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        if (rtems_panic_in_progress > 2)
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            return 0;
125
    }
126
 
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    (void) fflush(stdout);          /* in case stdout/stderr same */
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    status = error_flag & ~RTEMS_ERROR_MASK;
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    if (error_flag & RTEMS_ERROR_ERRNO)     /* include errno? */
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        local_errno = errno;
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133
    if (_System_state_Is_multiprocessing)
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        fprintf(stderr, "[%d] ", _Configuration_MP_table->node);
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    if (rtems_progname && *rtems_progname)
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        chars_written += fprintf(stderr, "%s: ", rtems_progname);
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    chars_written += vfprintf(stderr, printf_format, arglist);
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140
    if (status)
141
        chars_written += fprintf(stderr, " (status: %s)", rtems_status_text(status));
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143
    if (local_errno)
144
    {
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      if ((local_errno > 0) && *strerror(local_errno))
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        chars_written += fprintf(stderr, " (errno: %s)", strerror(local_errno));
147
      else
148
        chars_written += fprintf(stderr, " (unknown errno=%d)", local_errno);
149
    }
150
 
151
    chars_written += fprintf(stderr, "\n");
152
 
153
    (void) fflush(stderr);
154
 
155
    if (error_flag & (RTEMS_ERROR_PANIC | RTEMS_ERROR_ABORT))
156
    {
157
        if (error_flag & RTEMS_ERROR_PANIC)
158
        {
159
            rtems_error(0, "fatal error, exiting");
160
            _exit(local_errno);
161
        }
162
        else
163
        {
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            rtems_error(0, "fatal error, aborting");
165
            abort();
166
        }
167
    }
168
    return chars_written;
169
}
170
 
171
 
172
/*
173
 * Report an error.
174
 * error_flag is as above; printf_format is a normal
175
 * printf(3) format string, with its concommitant arguments.
176
 *
177
 * Returns the number of characters written.
178
 */
179
 
180
int rtems_error(
181
    int   error_flag,
182
    const char *printf_format,
183
    ...
184
  )
185
{
186
    va_list arglist;
187
    int chars_written;
188
 
189
    va_start(arglist, printf_format);
190
    chars_written = rtems_verror(error_flag, printf_format, arglist);
191
    va_end(arglist);
192
 
193
    return chars_written;
194
}
195
 
196
/*
197
 * rtems_panic is shorthand for rtems_error(RTEMS_ERROR_PANIC, ...)
198
 */
199
 
200
void rtems_panic(
201
    const char *printf_format,
202
    ...
203
  )
204
{
205
    va_list arglist;
206
 
207
    va_start(arglist, printf_format);
208
    (void) rtems_verror(RTEMS_ERROR_PANIC, printf_format, arglist);
209
    va_end(arglist);
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}

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