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New files -- Kinetis variant documentation. [Bug 1001580]
author vae
date Fri, 18 May 2012 21:27:23 +0000
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1 #ifndef CYGONCE_KERNEL_EXCEPT_HXX
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2 #define CYGONCE_KERNEL_EXCEPT_HXX
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3
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4 //==========================================================================
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5 //
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6 // except.hxx
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7 //
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8 // Exception handling declarations
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9 //
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10 //==========================================================================
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11 // ####ECOSGPLCOPYRIGHTBEGIN####
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12 // -------------------------------------------
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13 // This file is part of eCos, the Embedded Configurable Operating System.
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14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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15 //
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16 // eCos is free software; you can redistribute it and/or modify it under
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17 // the terms of the GNU General Public License as published by the Free
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18 // Software Foundation; either version 2 or (at your option) any later
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19 // version.
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20 //
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21 // eCos is distributed in the hope that it will be useful, but WITHOUT
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22 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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23 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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24 // for more details.
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25 //
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26 // You should have received a copy of the GNU General Public License
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27 // along with eCos; if not, write to the Free Software Foundation, Inc.,
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28 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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29 //
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30 // As a special exception, if other files instantiate templates or use
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31 // macros or inline functions from this file, or you compile this file
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32 // and link it with other works to produce a work based on this file,
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33 // this file does not by itself cause the resulting work to be covered by
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34 // the GNU General Public License. However the source code for this file
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35 // must still be made available in accordance with section (3) of the GNU
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36 // General Public License v2.
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37 //
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38 // This exception does not invalidate any other reasons why a work based
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39 // on this file might be covered by the GNU General Public License.
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40 // -------------------------------------------
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41 // ####ECOSGPLCOPYRIGHTEND####
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42 //==========================================================================
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43 //#####DESCRIPTIONBEGIN####
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44 //
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45 // Author(s): nickg
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46 // Contributors: nickg, jlarmour
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47 // Date: 1999-02-16
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48 // Purpose: Define exception interfaces
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49 // Description: The classes defined here collectively implement the
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50 // internal API used to register, manage and deliver
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51 // exceptions.
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52 // Usage: #include <cyg/kernel/thread.hxx>
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53 //
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54 //####DESCRIPTIONEND####
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55 //
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56 //==========================================================================
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57
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58 #include <cyg/kernel/ktypes.h>
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59 #include <cyg/infra/cyg_ass.h> // assertion macros
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60 #include <cyg/hal/hal_intr.h> // exception defines
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61
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62 // -------------------------------------------------------------------------
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63 // Exception handler function prototype
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64
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65 typedef void cyg_exception_handler(
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66 CYG_ADDRWORD data, // user supplied data
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67 cyg_code exception_number, // exception being raised
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68 CYG_ADDRWORD exception_info // any exception specific info
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69 );
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70
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71 // -------------------------------------------------------------------------
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72 // Exception delivery interface. This function is exported to the HAL which
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73 // invokes it for all exceptions that it is not able to handle itself.
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74
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75 externC void cyg_hal_deliver_exception( CYG_WORD code, CYG_ADDRWORD data );
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76
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77 // -------------------------------------------------------------------------
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78 // Exception control class. Depending on the configuration there is either
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79 // one of these per thread, or one for the entire system.
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80
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81 #ifdef CYGPKG_KERNEL_EXCEPTIONS
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82
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83 class Cyg_Exception_Control
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84 {
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85
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86 #ifdef CYGSEM_KERNEL_EXCEPTIONS_DECODE
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87 cyg_exception_handler *exception_handler[CYGNUM_HAL_EXCEPTION_COUNT];
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88
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89 CYG_ADDRWORD exception_data[CYGNUM_HAL_EXCEPTION_COUNT];
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90 #else
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91 cyg_exception_handler *exception_handler; // Handler function
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92
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93 CYG_ADDRWORD exception_data; // Handler data
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94 #endif
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95
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96 public:
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97
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98 Cyg_Exception_Control();
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99
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100 // Register an exception handler for either the specific exception
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101 // or for all exceptions.
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102 void register_exception(
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103 cyg_code exception_number, // exception number
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104 cyg_exception_handler handler, // handler function
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105 CYG_ADDRWORD data, // data argument
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106 cyg_exception_handler **old_handler, // handler function
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107 CYG_ADDRWORD *old_data // data argument
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108 );
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109
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110 // Remove an exception handler.
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111 void deregister_exception(
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112 cyg_code exception_number // exception number
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113 );
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114
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115 // Deliver the given exception now by invoking the appropriate
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116 // exception handler.
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117 void deliver_exception(
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118 cyg_code exception_number, // exception being raised
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119 CYG_ADDRWORD exception_info // exception specific info
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120 );
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121 };
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122
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123 #endif
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124
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125 // -------------------------------------------------------------------------
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126 #endif // ifndef CYGONCE_KERNEL_EXCEPT_HXX
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127 // EOF except.hxx