1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief Initialize Thread Handler |
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5 | * @ingroup ScoreThread |
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6 | */ |
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7 | |
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8 | /* |
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9 | * COPYRIGHT (c) 1989-2011. |
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10 | * On-Line Applications Research Corporation (OAR). |
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11 | * |
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12 | * The license and distribution terms for this file may be |
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13 | * found in the file LICENSE in this distribution or at |
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14 | * http://www.rtems.org/license/LICENSE. |
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15 | */ |
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16 | |
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17 | #if HAVE_CONFIG_H |
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18 | #include "config.h" |
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19 | #endif |
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20 | |
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21 | #include <rtems/score/threadimpl.h> |
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22 | #include <rtems/score/interr.h> |
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23 | #include <rtems/score/scheduler.h> |
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24 | #include <rtems/score/wkspace.h> |
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25 | |
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26 | #define THREAD_OFFSET_ASSERT( field ) \ |
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27 | RTEMS_STATIC_ASSERT( \ |
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28 | offsetof( Thread_Control, field ) == offsetof( Thread_Proxy_control, field ), \ |
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29 | field \ |
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30 | ) |
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31 | |
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32 | THREAD_OFFSET_ASSERT( Object ); |
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33 | THREAD_OFFSET_ASSERT( Join_queue ); |
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34 | THREAD_OFFSET_ASSERT( current_state ); |
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35 | THREAD_OFFSET_ASSERT( current_priority ); |
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36 | THREAD_OFFSET_ASSERT( real_priority ); |
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37 | THREAD_OFFSET_ASSERT( priority_generation ); |
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38 | THREAD_OFFSET_ASSERT( priority_restore_hint ); |
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39 | THREAD_OFFSET_ASSERT( resource_count ); |
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40 | THREAD_OFFSET_ASSERT( Wait ); |
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41 | THREAD_OFFSET_ASSERT( Timer ); |
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42 | #if defined(RTEMS_MULTIPROCESSING) |
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43 | THREAD_OFFSET_ASSERT( receive_packet ); |
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44 | #endif |
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45 | |
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46 | Thread_Information _Thread_Internal_information; |
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47 | |
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48 | void _Thread_Initialize_information( |
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49 | Thread_Information *information, |
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50 | Objects_APIs the_api, |
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51 | uint16_t the_class, |
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52 | uint32_t maximum, |
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53 | bool is_string, |
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54 | uint32_t maximum_name_length |
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55 | ) |
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56 | { |
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57 | _Objects_Initialize_information( |
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58 | &information->Objects, |
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59 | the_api, |
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60 | the_class, |
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61 | maximum, |
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62 | _Thread_Control_size, |
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63 | is_string, |
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64 | maximum_name_length, |
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65 | NULL |
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66 | ); |
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67 | |
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68 | _Freechain_Initialize( |
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69 | &information->Free_thread_queue_heads, |
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70 | _Workspace_Allocate_or_fatal_error, |
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71 | _Objects_Maximum_per_allocation( maximum ), |
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72 | THREAD_QUEUE_HEADS_SIZE( _Scheduler_Count ) |
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73 | ); |
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74 | } |
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75 | |
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76 | void _Thread_Handler_initialization(void) |
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77 | { |
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78 | rtems_stack_allocate_init_hook stack_allocate_init_hook = |
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79 | rtems_configuration_get_stack_allocate_init_hook(); |
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80 | #if defined(RTEMS_MULTIPROCESSING) |
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81 | uint32_t maximum_proxies = |
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82 | _Configuration_MP_table->maximum_proxies; |
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83 | #endif |
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84 | |
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85 | if ( rtems_configuration_get_stack_allocate_hook() == NULL || |
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86 | rtems_configuration_get_stack_free_hook() == NULL) |
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87 | _Terminate( |
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88 | INTERNAL_ERROR_CORE, |
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89 | true, |
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90 | INTERNAL_ERROR_BAD_STACK_HOOK |
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91 | ); |
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92 | |
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93 | if ( stack_allocate_init_hook != NULL ) |
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94 | (*stack_allocate_init_hook)( rtems_configuration_get_stack_space_size() ); |
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95 | |
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96 | #if defined(RTEMS_MULTIPROCESSING) |
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97 | _Thread_MP_Handler_initialization( maximum_proxies ); |
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98 | #endif |
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99 | |
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100 | /* |
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101 | * Initialize the internal class of threads. We need an IDLE thread |
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102 | * per CPU in an SMP system. In addition, if this is a loosely |
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103 | * coupled multiprocessing system, account for the MPCI Server Thread. |
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104 | */ |
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105 | _Thread_Initialize_information( |
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106 | &_Thread_Internal_information, |
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107 | OBJECTS_INTERNAL_API, |
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108 | OBJECTS_INTERNAL_THREADS, |
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109 | _Thread_Get_maximum_internal_threads(), |
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110 | false, /* true if names for this object are strings */ |
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111 | 8 /* maximum length of each object's name */ |
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112 | ); |
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113 | |
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114 | } |
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