source: rtems/cpukit/libcsupport/src/newlibc_exit.c @ 45c9b7d4

4.115
Last change on this file since 45c9b7d4 was 45c9b7d4, checked in by Sebastian Huber <sebastian.huber@…>, on 04/23/13 at 13:04:42

libcsupport: POSIX conformance for _exit()

According to POSIX the _exit() function shall not call functions
registered with atexit() nor any registered signal handlers.

See also tests libtests/exit01 and libtests/exit02.

Make libc_wrapup() static. Remove out of date comments. Remove
superfluous declarations, defines and includes.

  • Property mode set to 100644
File size: 1.4 KB
Line 
1/*
2 *  COPYRIGHT (c) 1994 by Division Incorporated
3 *
4 *  The license and distribution terms for this file may be
5 *  found in the file LICENSE in this distribution or at
6 *  http://www.rtems.com/license/LICENSE.
7 *
8 */
9
10#if HAVE_CONFIG_H
11#include "config.h"
12#endif
13
14#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__
15#include <rtems.h>
16
17#if defined(RTEMS_NEWLIB)
18#include <rtems/libcsupport.h>
19
20#include <stdio.h>
21#include <unistd.h>
22
23static void libc_wrapup(void)
24{
25  /*
26   *  In case RTEMS is already down, don't do this.  It could be
27   *  dangerous.
28   */
29
30  if (!_System_state_Is_up(_System_state_Get()))
31     return;
32
33  /*
34   * Try to drain output buffers.
35   *
36   * Should this be changed to do *all* file streams?
37   *    _fwalk (_REENT, fclose);
38   */
39
40  fclose (stdin);
41  fclose (stdout);
42  fclose (stderr);
43}
44
45/* FIXME: These defines are a blatant hack */
46
47  #if defined(__USE_INIT_FINI__)
48    #if defined(__m32r__)
49      #define FINI_SYMBOL __fini
50    #elif defined(__ARM_EABI__)
51      #define FINI_SYMBOL __libc_fini_array
52    #else
53      #define FINI_SYMBOL _fini
54    #endif
55
56    extern void FINI_SYMBOL( void );
57  #endif
58
59void _exit(int status)
60{
61  /*
62   *  If the toolset uses init/fini sections, then we need to
63   *  run the global destructors now.
64   */
65  #if defined(FINI_SYMBOL)
66    FINI_SYMBOL();
67  #endif
68
69  libc_wrapup();
70  rtems_shutdown_executive(status);
71  for (;;) ; /* to avoid warnings */
72}
73
74#endif
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