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annotate packages/language/c/libc/startup/current/src/exit.cxx @ 115:6ed91473a1cd ecos-sw-2000-08-21

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Merge from eCos master repository on 2000-08-21-22:40:54-BST
author jlarmour
date Fri, 25 Aug 2000 17:32:38 +0000
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1 //=========================================================================
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2 //
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3 // exit.cxx
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4 //
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5 // Implementation of the exit() function
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6 //
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7 //=========================================================================
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8 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Red Hat eCos Public License
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12 // Version 1.1 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://www.redhat.com/
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15 //
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16 // Software distributed under the License is distributed on an "AS IS"
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Configurable Operating System,
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22 // released September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Red Hat.
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25 // Portions created by Red Hat are
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26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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27 // All Rights Reserved.
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28 // -------------------------------------------
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29 //
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30 //####COPYRIGHTEND####
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31 //=========================================================================
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32 //#####DESCRIPTIONBEGIN####
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33 //
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34 // Author(s): jlarmour
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35 // Contributors:
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36 // Date: 2000-04-30
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37 // Purpose:
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38 // Description:
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39 // Usage:
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40 //
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41 //####DESCRIPTIONEND####
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42 //
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43 //=========================================================================
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44
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45 // CONFIGURATION
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46
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47 #include <pkgconf/libc_startup.h> // Configuration header
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48
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49 // INCLUDES
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50
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51 #include <cyg/infra/cyg_type.h> // Common type definitions and support
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52 #include <cyg/infra/cyg_trac.h> // Common tracing support
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53 #include <cyg/infra/cyg_ass.h> // Common assertion support
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54 #include <stdio.h> // fflush()
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55 #include <errno.h> // errno
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56 #include <stdlib.h> // Header for all stdlib functions
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57 // (like this one)
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58 // EXTERNAL PROTOTYPES
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59
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60 externC void
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61 cyg_libc_invoke_atexit_handlers( void );
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62
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63 // FUNCTIONS
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64
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65 externC void
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66 exit( int status )
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67 {
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68 CYG_REPORT_FUNCTION(); // shouldn't return, but CYG_FAIL will catch it
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69 CYG_REPORT_FUNCARG1DV( status );
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70
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71 // Strictly the only thing exit() does is invoke the atexit handlers
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72 // and flush stdio buffers. Anything else is for _exit()
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73 // within the implementation)
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74
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75 #ifdef CYGFUN_LIBC_ATEXIT
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76 // we start with the atexit handlers
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77 cyg_libc_invoke_atexit_handlers();
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78 #endif
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79
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80 #ifdef CYGSEM_LIBC_EXIT_CALLS_FFLUSH
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81
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82 int rc;
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83
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84 CYG_TRACE0( true, "Calling fflush( NULL )" );
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85 rc = fflush( NULL );
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86
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87 CYG_TRACE2( rc != 0, "fflush() returned non-zero. It returned %d and "
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88 "errno indicates the error: %s", rc, strerror(errno) );
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89 #endif
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90
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91 _exit( status );
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92
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93 CYG_FAIL( "__libc_exit() returning!!!" );
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94
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95 CYG_REPORT_RETURN();
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96 } // __libc_exit()
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97
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98 // EOF exit.cxx