1 | /* Minimum Size Application Initialization |
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2 | * |
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3 | * COPYRIGHT (c) 1989-2008. |
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4 | * On-Line Applications Research Corporation (OAR). |
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5 | * |
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6 | * The license and distribution terms for this file may be |
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7 | * found in the file LICENSE in this distribution or at |
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8 | * http://www.rtems.com/license/LICENSE. |
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9 | * |
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10 | * $Id$ |
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11 | */ |
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12 | |
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13 | #define __RTEMS_VIOLATE_KERNEL_VISIBILITY__ |
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14 | |
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15 | #ifdef HAVE_CONFIG_H |
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16 | #include "config.h" |
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17 | #endif |
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18 | |
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19 | #include <bsp.h> |
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20 | #include <rtems/score/thread.h> |
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21 | |
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22 | rtems_task Init( |
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23 | rtems_task_argument ignored |
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24 | ) |
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25 | { |
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26 | /* initialize application */ |
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27 | |
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28 | /* Real application would call idle loop functionality */ |
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29 | |
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30 | /* but in this case, just return and fall into a fatal error */ |
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31 | } |
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32 | |
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33 | /* configuration information */ |
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34 | |
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35 | /* |
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36 | * This fatal extension adds some bytes to the absolute minimum, but it |
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37 | * prevents the _CPU_Fatal_halt(). |
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38 | */ |
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39 | static void Fatal_extension( |
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40 | uint32_t source, |
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41 | bool is_internal, |
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42 | uint32_t error |
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43 | ) |
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44 | { |
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45 | _Thread_Stop_multitasking(); |
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46 | } |
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47 | |
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48 | #define CONFIGURE_INITIAL_EXTENSIONS { .fatal = Fatal_extension } |
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49 | |
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50 | /* |
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51 | * This application has no device drivers. |
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52 | */ |
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53 | /* NOTICE: the clock driver is explicitly disabled */ |
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54 | #define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER |
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55 | |
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56 | /* |
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57 | * This application has no filesytem and libio support. |
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58 | */ |
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59 | #define CONFIGURE_APPLICATION_DISABLE_FILESYSTEM |
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60 | |
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61 | /* |
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62 | * This disables reentrancy support in the C Library. It is usually |
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63 | * not something an application wants to do unless the development |
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64 | * team is committed to using C Library routines that are KNOWN to |
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65 | * be reentrant. Caveat Emptor!! |
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66 | */ |
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67 | #define CONFIGURE_DISABLE_NEWLIB_REENTRANCY |
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68 | |
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69 | /* |
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70 | * This test does not need the console driver so there is no reason |
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71 | * to configure termios. |
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72 | */ |
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73 | #define CONFIGURE_TERMIOS_DISABLED |
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74 | |
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75 | /* |
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76 | * This test does not use any stdio. |
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77 | */ |
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78 | #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 0 |
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79 | |
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80 | /* |
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81 | * This may prevent us from running on every architecture but it |
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82 | * demonstrates that the user can specify how small of a minimum |
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83 | * stack they want. |
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84 | */ |
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85 | #define CONFIGURE_MINIMUM_TASK_STACK_SIZE 512 |
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86 | |
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87 | /* |
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88 | * This lowers the number of priorities that this test is able to |
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89 | * use. The Idle task will be running at the lowest priority. |
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90 | */ |
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91 | #define CONFIGURE_MAXIMUM_PRIORITY 15 |
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92 | |
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93 | /* |
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94 | * This disables Classic API Notepads and saves 16 uint32_t's of RAM |
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95 | * per Task Control Block. If you aren't using these and are tight |
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96 | * on RAM, this is an option. |
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97 | */ |
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98 | #define CONFIGURE_DISABLE_CLASSIC_API_NOTEPADS |
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99 | |
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100 | /* |
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101 | * This configures RTEMS to use a single memory pool for the RTEMS Workspace |
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102 | * and C Program Heap. If not defined, there will be separate memory pools |
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103 | * for the RTEMS Workspace and C Program Heap. Having separate pools |
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104 | * does haved some advantages in the event a task blows a stack or writes |
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105 | * outside its memory area. However, in low memory systems the overhead of |
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106 | * the two pools plus the potential for unused memory in either pool is |
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107 | * very undesirable. |
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108 | * |
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109 | * In high memory environments, this is desirable when you want to use |
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110 | * the RTEMS "unlimited" objects option. You will be able to create objects |
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111 | * until you run out of memory. |
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112 | */ |
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113 | #define CONFIGURE_UNIFIED_WORK_AREAS |
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114 | |
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115 | /* |
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116 | * In this application, the initialization task performs the system |
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117 | * initialization and then transforms itself into the idle task. |
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118 | */ |
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119 | #define CONFIGURE_IDLE_TASK_BODY Init |
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120 | #define CONFIGURE_IDLE_TASK_INITIALIZES_APPLICATION |
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121 | |
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122 | /* |
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123 | * If you are debugging confdefs.h, define this |
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124 | */ |
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125 | /* #define CONFIGURE_CONFDEFS_DEBUG */ |
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126 | |
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127 | /* |
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128 | * Instantiate the configuration tables. |
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129 | */ |
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130 | #define CONFIGURE_INIT |
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131 | |
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132 | #include <rtems/confdefs.h> |
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133 | |
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134 | /* global variables */ |
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