1 //=========================================================================
5 // Implementation of the exit() function
7 //=========================================================================
8 //####ECOSGPLCOPYRIGHTBEGIN####
9 // -------------------------------------------
10 // This file is part of eCos, the Embedded Configurable Operating System.
11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
13 // eCos is free software; you can redistribute it and/or modify it under
14 // the terms of the GNU General Public License as published by the Free
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24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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27 // or inline functions from this file, or you compile this file and link it
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30 // License. However the source code for this file must still be made available
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38 // -------------------------------------------
39 //####ECOSGPLCOPYRIGHTEND####
40 //=========================================================================
41 //#####DESCRIPTIONBEGIN####
43 // Author(s): jlarmour
50 //####DESCRIPTIONEND####
52 //=========================================================================
56 #include <pkgconf/libc_startup.h> // Configuration header
60 #include <cyg/infra/cyg_type.h> // Common type definitions and support
61 #include <cyg/infra/cyg_trac.h> // Common tracing support
62 #include <cyg/infra/cyg_ass.h> // Common assertion support
63 #include <stdio.h> // fflush()
64 #include <errno.h> // errno
65 #include <stdlib.h> // Header for all stdlib functions
67 // EXTERNAL PROTOTYPES
70 cyg_libc_invoke_atexit_handlers( void );
77 CYG_REPORT_FUNCTION(); // shouldn't return, but CYG_FAIL will catch it
78 CYG_REPORT_FUNCARG1DV( status );
80 // Strictly the only thing exit() does is invoke the atexit handlers
81 // and flush stdio buffers. Anything else is for _exit()
82 // within the implementation)
84 #ifdef CYGFUN_LIBC_ATEXIT
85 // we start with the atexit handlers
86 cyg_libc_invoke_atexit_handlers();
89 #ifdef CYGSEM_LIBC_EXIT_CALLS_FFLUSH
93 CYG_TRACE0( true, "Calling fflush( NULL )" );
96 CYG_TRACE2( rc != 0, "fflush() returned non-zero. It returned %d and "
97 "errno indicates the error: %s", rc, strerror(errno) );
102 CYG_FAIL( "__libc_exit() returning!!!" );