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1 //======================================================================== |
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2 // |
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3 // pkgstart.cxx |
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4 // |
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5 // General startup code for the target machine |
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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: This provides generic startup code for the eCos system. |
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36 // Description: We start the system with the entry point cyg_start() |
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37 // which is called from the eCos HALs. This in turn invokes |
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38 // cyg_prestart(), cyg_package_start() and cyg_user_start(). |
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39 // All these can be overriden by the user. |
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40 // Usage: Override the defaults to use your own startup code. |
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41 // cyg_package_start() is used to call into individual |
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42 // packages' startup code. Alternatively leave it be and |
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43 // use the configuration options to set the appropriate |
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44 // compatibility environment e.g. uItron, ISO C, etc. |
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45 // This may be automatically generated in the future. |
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46 // |
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47 //####DESCRIPTIONEND#### |
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48 // |
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49 //======================================================================== |
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50 |
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51 // CONFIGURATION |
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52 |
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53 #include <pkgconf/infra.h> // Configuration header |
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54 |
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55 // INCLUDES |
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56 |
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57 #include <cyg/infra/cyg_type.h> // Common type definitions and support |
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58 #include <cyg/infra/cyg_trac.h> // Default tracing support |
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59 |
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60 #ifdef CYGSEM_START_ISO_C_COMPATIBILITY |
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61 # include <sys/cstartup.h> |
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62 #endif |
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63 |
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64 #ifdef CYGSEM_START_UITRON_COMPATIBILITY |
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65 # include <cyg/compat/uitron/uit_func.h> |
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66 #endif |
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67 |
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68 // FUNCTION PROTOTYPES |
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69 |
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70 externC void |
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71 cyg_package_start( void ) CYGBLD_ATTRIB_WEAK; |
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72 |
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73 // FUNCTIONS |
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74 |
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75 void |
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76 cyg_package_start( void ) |
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77 { |
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78 CYG_REPORT_FUNCTION(); |
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79 CYG_REPORT_FUNCARGVOID(); |
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80 |
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81 CYG_TRACE0( true, "This is the system default cyg_package_start()" ); |
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82 |
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83 #ifdef CYGSEM_START_UITRON_COMPATIBILITY |
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84 cyg_uitron_start(); |
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85 #endif |
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86 |
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87 #ifdef CYGSEM_START_ISO_C_COMPATIBILITY |
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88 // This works even if the kernel is there, but if not, then it |
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89 // calls the user main() and doesn't return until it does! |
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90 cyg_iso_c_start(); |
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91 #endif |
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92 |
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93 CYG_EMPTY_STATEMENT; // don't let it complain about doing nothing |
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94 |
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95 CYG_REPORT_RETURN(); |
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96 } // cyg_package_start() |
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97 |
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98 // EOF pkgstart.cxx |
