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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [error.c] - Rev 173
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/* * report errors and panics to RTEMS' stderr. * Currently just used by RTEMS monitor. * * $Id: error.c,v 1.2 2001-09-27 12:01:15 chris Exp $ */ /* * These routines provide general purpose error reporting. * rtems_error reports an error to stderr and allows use of * printf style formatting. A newline is appended to all messages. * * error_flag can be specified as any of the following: * * RTEMS_ERROR_ERRNO -- include errno text in output * RTEMS_ERROR_PANIC -- halts local system after output * RTEMS_ERROR_ABORT -- abort after output * * It can also include a rtems_status value which can be OR'd * with the above flags. * * * EXAMPLE * #include <rtems.h> * #include <rtems/error.h> * rtems_error(0, "stray interrupt %d", intr); * * EXAMPLE * if ((status = rtems_task_create(...)) != RTEMS_SUCCCESSFUL) * { * rtems_error(status | RTEMS_ERROR_ABORT, * "could not create task"); * } * * EXAMPLE * if ((fd = open(pathname, O_RDNLY)) < 0) * { * rtems_error(RTEMS_ERROR_ERRNO, "open of '%s' failed", pathname); * goto failed; * } */ #define __RTEMS_VIOLATE_KERNEL_VISIBILITY__ #include <rtems.h> #include "error.h" #include <rtems/assoc.h> #include <stdio.h> #include <stdarg.h> #include <errno.h> #include <stdlib.h> #include <string.h> #include <unistd.h> /* _exit() */ /* bug in hpux <errno.h>: no prototypes unless you are C++ */ #ifdef hpux9 char *strerror(int); #endif extern char *rtems_progname; int rtems_panic_in_progress; rtems_assoc_t rtems_status_assoc[] = { { "successful completion", RTEMS_SUCCESSFUL, }, { "returned from a thread", RTEMS_TASK_EXITTED, }, { "multiprocessing not configured", RTEMS_MP_NOT_CONFIGURED, }, { "invalid object name", RTEMS_INVALID_NAME, }, { "invalid object id", RTEMS_INVALID_ID, }, { "too many", RTEMS_TOO_MANY, }, { "timed out waiting", RTEMS_TIMEOUT, }, { "object deleted while waiting", RTEMS_OBJECT_WAS_DELETED, }, { "specified size was invalid", RTEMS_INVALID_SIZE, }, { "address specified is invalid", RTEMS_INVALID_ADDRESS, }, { "number was invalid", RTEMS_INVALID_NUMBER, }, { "item has not been initialized", RTEMS_NOT_DEFINED, }, { "resources still outstanding", RTEMS_RESOURCE_IN_USE, }, { "request not satisfied", RTEMS_UNSATISFIED, }, { "thread is in wrong state", RTEMS_INCORRECT_STATE, }, { "thread already in state", RTEMS_ALREADY_SUSPENDED, }, { "illegal on calling thread", RTEMS_ILLEGAL_ON_SELF, }, { "illegal for remote object", RTEMS_ILLEGAL_ON_REMOTE_OBJECT, }, { "called from wrong environment", RTEMS_CALLED_FROM_ISR, }, { "invalid thread priority", RTEMS_INVALID_PRIORITY, }, { "invalid date/time", RTEMS_INVALID_CLOCK, }, { "invalid node id", RTEMS_INVALID_NODE, }, { "directive not configured", RTEMS_NOT_CONFIGURED, }, { "not owner of resource", RTEMS_NOT_OWNER_OF_RESOURCE , }, { "directive not implemented", RTEMS_NOT_IMPLEMENTED, }, { "RTEMS inconsistency detected", RTEMS_INTERNAL_ERROR, }, { "could not get enough memory", RTEMS_NO_MEMORY, }, { "driver IO error", RTEMS_IO_ERROR, }, { "internal multiprocessing only", THREAD_STATUS_PROXY_BLOCKING, }, { 0, 0, 0 }, }; const char * rtems_status_text( rtems_status_code status ) { return rtems_assoc_name_by_local(rtems_status_assoc, status); } static int rtems_verror( unsigned32 error_flag, const char *printf_format, va_list arglist ) { int local_errno = 0; int chars_written = 0; rtems_status_code status; if (error_flag & RTEMS_ERROR_PANIC) { if (rtems_panic_in_progress++) _Thread_Disable_dispatch(); /* disable task switches */ /* don't aggravate things */ if (rtems_panic_in_progress > 2) return 0; } (void) fflush(stdout); /* in case stdout/stderr same */ status = error_flag & ~RTEMS_ERROR_MASK; if (error_flag & RTEMS_ERROR_ERRNO) /* include errno? */ local_errno = errno; if (_System_state_Is_multiprocessing) fprintf(stderr, "[%d] ", _Configuration_MP_table->node); if (rtems_progname && *rtems_progname) chars_written += fprintf(stderr, "%s: ", rtems_progname); chars_written += vfprintf(stderr, printf_format, arglist); if (status) chars_written += fprintf(stderr, " (status: %s)", rtems_status_text(status)); if (local_errno) { if ((local_errno > 0) && *strerror(local_errno)) chars_written += fprintf(stderr, " (errno: %s)", strerror(local_errno)); else chars_written += fprintf(stderr, " (unknown errno=%d)", local_errno); } chars_written += fprintf(stderr, "\n"); (void) fflush(stderr); if (error_flag & (RTEMS_ERROR_PANIC | RTEMS_ERROR_ABORT)) { if (error_flag & RTEMS_ERROR_PANIC) { rtems_error(0, "fatal error, exiting"); _exit(local_errno); } else { rtems_error(0, "fatal error, aborting"); abort(); } } return chars_written; } /* * Report an error. * error_flag is as above; printf_format is a normal * printf(3) format string, with its concommitant arguments. * * Returns the number of characters written. */ int rtems_error( int error_flag, const char *printf_format, ... ) { va_list arglist; int chars_written; va_start(arglist, printf_format); chars_written = rtems_verror(error_flag, printf_format, arglist); va_end(arglist); return chars_written; } /* * rtems_panic is shorthand for rtems_error(RTEMS_ERROR_PANIC, ...) */ void rtems_panic( const char *printf_format, ... ) { va_list arglist; va_start(arglist, printf_format); (void) rtems_verror(RTEMS_ERROR_PANIC, printf_format, arglist); va_end(arglist); }