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annotate packages/language/c/libc/startup/current/src/exit.cxx @ 2729:74dbf4c3f2e1 after-copyright-change-20090129

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Update all copyright banners to reflect FSF ownership; fix and improve licence text.
author jlarmour
date Thu, 29 Jan 2009 17:47:46 +0000
parents d2c90368aeef
children
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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 // ####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later
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16 // version.
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17 //
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18 // eCos is distributed in the hope that it will be useful, but WITHOUT
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19 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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21 // for more details.
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22 //
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23 // You should have received a copy of the GNU General Public License
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24 // along with eCos; if not, write to the Free Software Foundation, Inc.,
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25 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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26 //
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27 // As a special exception, if other files instantiate templates or use
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28 // macros or inline functions from this file, or you compile this file
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29 // and link it with other works to produce a work based on this file,
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30 // this file does not by itself cause the resulting work to be covered by
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31 // the GNU General Public License. However the source code for this file
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32 // must still be made available in accordance with section (3) of the GNU
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33 // General Public License v2.
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34 //
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35 // This exception does not invalidate any other reasons why a work based
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36 // on this file might be covered by the GNU General Public License.
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37 // -------------------------------------------
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38 // ####ECOSGPLCOPYRIGHTEND####
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39 //=========================================================================
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40 //#####DESCRIPTIONBEGIN####
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41 //
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42 // Author(s): jlarmour
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43 // Contributors:
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44 // Date: 2000-04-30
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45 // Purpose:
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46 // Description:
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47 // Usage:
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48 //
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49 //####DESCRIPTIONEND####
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50 //
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51 //=========================================================================
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52
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53 // CONFIGURATION
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54
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55 #include <pkgconf/libc_startup.h> // Configuration header
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56
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57 // INCLUDES
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58
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59 #include <cyg/infra/cyg_type.h> // Common type definitions and support
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60 #include <cyg/infra/cyg_trac.h> // Common tracing support
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61 #include <cyg/infra/cyg_ass.h> // Common assertion support
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62 #include <stdio.h> // fflush()
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63 #include <errno.h> // errno
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64 #include <stdlib.h> // Header for all stdlib functions
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65 // (like this one)
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66 // EXTERNAL PROTOTYPES
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67
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68 externC void
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69 cyg_libc_invoke_atexit_handlers( void );
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70
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71 // FUNCTIONS
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72
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73 externC void
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74 exit( int status )
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75 {
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76 CYG_REPORT_FUNCTION(); // shouldn't return, but CYG_FAIL will catch it
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77 CYG_REPORT_FUNCARG1DV( status );
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78
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79 // Strictly the only thing exit() does is invoke the atexit handlers
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80 // and flush stdio buffers. Anything else is for _exit()
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81 // within the implementation)
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82
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83 #ifdef CYGFUN_LIBC_ATEXIT
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84 // we start with the atexit handlers
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85 cyg_libc_invoke_atexit_handlers();
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86 #endif
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87
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88 #ifdef CYGSEM_LIBC_EXIT_CALLS_FFLUSH
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89
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90 int rc;
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91
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92 CYG_TRACE0( true, "Calling fflush( NULL )" );
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93 rc = fflush( NULL );
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94
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95 CYG_TRACE2( rc != 0, "fflush() returned non-zero. It returned %d and "
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96 "errno indicates the error: %s", rc, strerror(errno) );
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97 #endif
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98
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99 _exit( status );
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100
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101 CYG_FAIL( "__libc_exit() returning!!!" );
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102
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103 CYG_REPORT_RETURN();
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104 } // __libc_exit()
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105
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106 // EOF exit.cxx