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annotate packages/language/c/libc/current/src/stdlib/_exit.cxx @ 0:3111d98ba7b3 ecos-v1_1-release

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Initial commit of eCos version 1.1
author jlarmour
date Tue, 11 May 1999 11:16:07 +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 // _exit() as from POSIX 1003.1 section 3.2.2 "Terminate a process"
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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 Cygnus eCos Public License
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12 // Version 1.0 (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://sourceware.cygnus.com/ecos
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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 Cygnus Operating System, released
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22 // September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Cygnus. Portions created
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25 // by Cygnus are Copyright (C) 1998 Cygnus Solutions. All Rights Reserved.
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26 // -------------------------------------------
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27 //
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28 //####COPYRIGHTEND####
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29 //========================================================================
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30 //#####DESCRIPTIONBEGIN####
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31 //
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32 // Author(s): jlarmour
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33 // Contributors: jlarmour@cygnus.co.uk
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34 // Date: 1998-02-13
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35 // Purpose:
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36 // Description:
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37 // Usage:
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38 //
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39 //####DESCRIPTIONEND####
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40 //
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41 //========================================================================
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42
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43 // CONFIGURATION
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44
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45 #include <pkgconf/libc.h> // Configuration header
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46
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47 // Include the C library?
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48 #ifdef CYGPKG_LIBC
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49
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50 // INCLUDES
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51
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52 #include <cyg/infra/cyg_type.h> // Common type definitions and support
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53 #include <cyg/infra/cyg_trac.h> // Common tracing support
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54 #include <cyg/infra/cyg_ass.h> // Common assertion support
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55 #include <stdlib.h> // Header for all stdlib functions
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56 // (like this one)
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57 #include "clibincl/stdlibsupp.hxx" // Support for stdlib functions
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58 #ifdef CYGPKG_KERNEL
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59 # include <cyg/kernel/thread.hxx> // eCos kernel for thread termination
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60 # include <cyg/kernel/thread.inl> // and
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61 # include <cyg/kernel/sched.hxx> // for stopping the scheduler
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62 # include <cyg/kernel/sched.inl>
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63 #endif
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64
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65
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66 // SYMBOLS
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67
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68 externC void
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69 _exit( int ) CYGPRI_LIBC_WEAK_ALIAS("__libc__exit") CYGPRI_LIBC_NORETURN;
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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 __libc__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 #ifdef CYGPKG_KERNEL
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80
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81 # ifdef CYGSEM_LIBC_EXIT_STOPS_SYSTEM
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82
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83 Cyg_Scheduler::lock(); // prevent rescheduling
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84
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85 for (;;)
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86 CYG_EMPTY_STATEMENT;
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87
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88 # else
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89
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90 Cyg_Thread::exit();
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91
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92 # endif
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93 #endif
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94
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95 // loop forever
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96 for (;;)
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97 CYG_EMPTY_STATEMENT;
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98
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99 CYG_FAIL( "__libc__exit() returning!!!" );
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100
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101 CYG_REPORT_RETURN();
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102 } // _exit()
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103
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104
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105 #endif // ifdef CYGPKG_LIBC
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106
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107 // EOF _exit.cxx