source: rtems/c/src/lib/libc/error.c @ d9230ea

4.104.114.84.95
Last change on this file since d9230ea was d9230ea, checked in by Joel Sherrill <joel.sherrill@…>, on Dec 13, 1999 at 2:49:38 PM

Added RTEMS_IO_ERROR.

  • Property mode set to 100644
File size: 6.2 KB
Line 
1/*
2 *  report errors and panics to RTEMS' stderr.
3 *  Currently just used by RTEMS monitor.
4 *
5 *  $Id$
6 */
7
8
9/*
10 * These routines provide general purpose error reporting.
11 * rtems_error reports an error to stderr and allows use of
12 * printf style formatting.  A newline is appended to all messages.
13 *
14 * error_flag can be specified as any of the following:
15 *
16 *      RTEMS_ERROR_ERRNO       -- include errno text in output
17 *      RTEMS_ERROR_PANIC       -- halts local system after output
18 *      RTEMS_ERROR_ABORT       -- abort after output
19 *
20 * It can also include a rtems_status value which can be OR'd
21 * with the above flags. *
22 *
23 * EXAMPLE
24 *      #include <rtems.h>
25 *      #include <rtems/error.h>
26 *      rtems_error(0, "stray interrupt %d", intr);
27 *
28 * EXAMPLE
29 *        if ((status = rtems_task_create(...)) != RTEMS_SUCCCESSFUL)
30 *        {
31 *            rtems_error(status | RTEMS_ERROR_ABORT,
32 *                        "could not create task");
33 *        }
34 *
35 * EXAMPLE
36 *        if ((fd = open(pathname, O_RDNLY)) < 0)
37 *        {
38 *            rtems_error(RTEMS_ERROR_ERRNO, "open of '%s' failed", pathname);
39 *            goto failed;
40 *        }
41 */
42
43#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__
44#include <rtems.h>
45
46#include "error.h"
47#include <rtems/assoc.h>
48
49#include <stdio.h>
50#include <stdarg.h>
51#include <errno.h>
52#include <stdlib.h>
53#include <string.h>
54#include <unistd.h>             /* _exit() */
55
56/* bug in hpux <errno.h>: no prototypes unless you are C++ */
57#ifdef hpux9
58char *strerror(int);
59#endif
60
61extern char *rtems_progname;
62int          rtems_panic_in_progress;
63
64rtems_assoc_t rtems_status_assoc[] = {
65    { "successful completion",              RTEMS_SUCCESSFUL, },
66    { "returned from a thread",             RTEMS_TASK_EXITTED, },
67    { "multiprocessing not configured",     RTEMS_MP_NOT_CONFIGURED, },
68    { "invalid object name",                RTEMS_INVALID_NAME, },
69    { "invalid object id",                  RTEMS_INVALID_ID, },
70    { "too many",                           RTEMS_TOO_MANY, },
71    { "timed out waiting",                  RTEMS_TIMEOUT, },
72    { "object deleted while waiting",       RTEMS_OBJECT_WAS_DELETED, },
73    { "specified size was invalid",         RTEMS_INVALID_SIZE, },
74    { "address specified is invalid",       RTEMS_INVALID_ADDRESS, },
75    { "number was invalid",                 RTEMS_INVALID_NUMBER, },
76    { "item has not been initialized",      RTEMS_NOT_DEFINED, },
77    { "resources still outstanding",        RTEMS_RESOURCE_IN_USE, },
78    { "request not satisfied",              RTEMS_UNSATISFIED, },
79    { "thread is in wrong state",           RTEMS_INCORRECT_STATE, },
80    { "thread already in state",            RTEMS_ALREADY_SUSPENDED, },
81    { "illegal on calling thread",          RTEMS_ILLEGAL_ON_SELF, },
82    { "illegal for remote object",          RTEMS_ILLEGAL_ON_REMOTE_OBJECT, },
83    { "called from wrong environment",      RTEMS_CALLED_FROM_ISR, },
84    { "invalid thread priority",            RTEMS_INVALID_PRIORITY, },
85    { "invalid date/time",                  RTEMS_INVALID_CLOCK, },
86    { "invalid node id",                    RTEMS_INVALID_NODE, },
87    { "directive not configured",           RTEMS_NOT_CONFIGURED, },
88    { "not owner of resource",              RTEMS_NOT_OWNER_OF_RESOURCE , },
89    { "directive not implemented",          RTEMS_NOT_IMPLEMENTED, },
90    { "RTEMS inconsistency detected",       RTEMS_INTERNAL_ERROR, },
91    { "could not get enough memory",        RTEMS_NO_MEMORY, },
92    { "driver IO error",                    RTEMS_IO_ERROR, },
93    { "internal multiprocessing only",      THREAD_STATUS_PROXY_BLOCKING, },
94    { 0, 0, 0 },
95};
96
97
98const char *
99rtems_status_text(
100    rtems_status_code status
101)
102{
103    return rtems_assoc_name_by_local(rtems_status_assoc, status);
104}
105
106
107static int rtems_verror(
108    unsigned32   error_flag,
109    const char   *printf_format,
110    va_list      arglist
111)
112{
113    int               local_errno = 0;
114    int               chars_written = 0;
115    rtems_status_code status;
116
117    if (error_flag & RTEMS_ERROR_PANIC)
118    {
119        if (rtems_panic_in_progress++)
120            _Thread_Disable_dispatch();       /* disable task switches */
121
122        /* don't aggravate things */
123        if (rtems_panic_in_progress > 2)
124            return 0;
125    }
126
127    (void) fflush(stdout);          /* in case stdout/stderr same */
128
129    status = error_flag & ~RTEMS_ERROR_MASK;
130    if (error_flag & RTEMS_ERROR_ERRNO)     /* include errno? */
131        local_errno = errno;
132
133    if (_System_state_Is_multiprocessing)
134        fprintf(stderr, "[%d] ", _Configuration_MP_table->node);
135   
136    if (rtems_progname && *rtems_progname)
137        chars_written += fprintf(stderr, "%s: ", rtems_progname);
138    chars_written += vfprintf(stderr, printf_format, arglist);
139   
140    if (status)
141        chars_written += fprintf(stderr, " (status: %s)", rtems_status_text(status));
142
143    if (local_errno)
144    {
145      if ((local_errno > 0) && *strerror(local_errno))
146        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        {
164            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
180int 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
200void 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);
210}
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