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1 //======================================================================= |
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2 // |
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3 // invokemain.cxx |
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4 // |
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5 // Support for startup of ISO C environment |
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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) 1998,1999 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 |
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34 // Date: 1999-01-21 |
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35 // Purpose: Provide entry point for thread which then calls main() |
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36 // Description: cyg_libc_invoke_main() is used as the entry point for |
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37 // the thread object that is created to call the |
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38 // user-supplied main() function. It sets up the arguments |
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39 // (if any) and invokes exit() if main() returns |
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40 // Usage: |
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41 // |
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42 //####DESCRIPTIONEND#### |
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43 // |
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44 //======================================================================== |
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45 |
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46 // CONFIGURATION |
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47 |
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48 #include <pkgconf/libc.h> // C library configuration |
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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 "clibincl/stdlibsupp.hxx" // __libc_exit() ( i.e. exit() ) |
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56 |
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57 // FUNCTION PROTOTYPES |
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58 |
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59 externC int |
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60 main( int argc, char *argv[] ); |
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61 |
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62 externC void |
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63 cyg_hal_invoke_constructors(void); |
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64 |
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65 // FUNCTIONS |
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66 |
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67 externC void |
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68 cyg_libc_invoke_main( CYG_ADDRWORD ) |
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69 { |
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70 CYG_REPORT_FUNCNAME( "cyg_libc_invoke_main" ); |
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71 CYG_REPORT_FUNCARG1( "argument is %s", "ignored" ); |
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72 |
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73 #ifdef CYGSEM_LIBC_INVOKE_DEFAULT_STATIC_CONSTRUCTORS |
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74 // finish invoking constructors that weren't called by default |
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75 cyg_hal_invoke_constructors(); |
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76 #endif |
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77 |
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78 // argv[argc] must be NULL according to the ISO C standard 5.1.2.2.1 |
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79 char *temp_argv[] = CYGDAT_LIBC_ARGUMENTS ; |
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80 int rc; |
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81 |
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82 rc = main( (sizeof(temp_argv)/sizeof(char *)) - 1, &temp_argv[0] ); |
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83 |
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84 CYG_TRACE1( true, "main() has returned with code %d. Calling exit()", |
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85 rc ); |
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86 |
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87 __libc_exit(rc); |
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88 |
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89 CYG_FAIL( "__libc_exit() returned!!!" ); |
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90 |
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91 CYG_REPORT_RETURN(); |
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92 |
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93 } // invoke_main(); |
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94 |
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95 // EOF invokemain.cxx |
