/*
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/*
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* Thread Handler
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* Thread Handler
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*
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*
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*
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*
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* COPYRIGHT (c) 1989-1999.
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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* On-Line Applications Research Corporation (OAR).
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*
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*
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* The license and distribution terms for this file may be
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* The license and distribution terms for this file may be
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* found in found in the file LICENSE in this distribution or at
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* found in found in the file LICENSE in this distribution or at
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* http://www.OARcorp.com/rtems/license.html.
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* http://www.OARcorp.com/rtems/license.html.
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*
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*
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* threadloadenv.c,v 1.3 2000/07/26 19:26:28 joel Exp
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* threadloadenv.c,v 1.3 2000/07/26 19:26:28 joel Exp
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*/
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*/
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#include <rtems/system.h>
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#include <rtems/system.h>
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#include <rtems/score/apiext.h>
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#include <rtems/score/apiext.h>
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#include <rtems/score/context.h>
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#include <rtems/score/context.h>
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#include <rtems/score/interr.h>
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#include <rtems/score/interr.h>
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#include <rtems/score/isr.h>
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#include <rtems/score/isr.h>
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#include <rtems/score/object.h>
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#include <rtems/score/object.h>
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#include <rtems/score/priority.h>
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#include <rtems/score/priority.h>
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#include <rtems/score/states.h>
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#include <rtems/score/states.h>
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#include <rtems/score/sysstate.h>
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#include <rtems/score/sysstate.h>
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#include <rtems/score/thread.h>
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#include <rtems/score/thread.h>
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#include <rtems/score/threadq.h>
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#include <rtems/score/threadq.h>
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#include <rtems/score/userext.h>
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#include <rtems/score/userext.h>
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#include <rtems/score/wkspace.h>
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#include <rtems/score/wkspace.h>
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/*PAGE
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/*PAGE
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*
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*
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* _Thread_Load_environment
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* _Thread_Load_environment
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*
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*
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* Load starting environment for another thread from its start area in the
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* Load starting environment for another thread from its start area in the
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* thread. Only called from t_restart and t_start.
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* thread. Only called from t_restart and t_start.
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*
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*
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* Input parameters:
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* Input parameters:
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* the_thread - thread control block pointer
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* the_thread - thread control block pointer
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*
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*
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* Output parameters: NONE
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* Output parameters: NONE
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*/
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*/
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void _Thread_Load_environment(
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void _Thread_Load_environment(
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Thread_Control *the_thread
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Thread_Control *the_thread
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)
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)
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{
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{
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boolean is_fp = FALSE;
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boolean is_fp = FALSE;
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#if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE )
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#if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE )
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if ( the_thread->Start.fp_context ) {
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if ( the_thread->Start.fp_context ) {
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the_thread->fp_context = the_thread->Start.fp_context;
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the_thread->fp_context = the_thread->Start.fp_context;
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_Context_Initialize_fp( &the_thread->fp_context );
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_Context_Initialize_fp( &the_thread->fp_context );
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is_fp = TRUE;
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is_fp = TRUE;
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}
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}
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#endif
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#endif
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the_thread->do_post_task_switch_extension = FALSE;
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the_thread->do_post_task_switch_extension = FALSE;
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the_thread->is_preemptible = the_thread->Start.is_preemptible;
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the_thread->is_preemptible = the_thread->Start.is_preemptible;
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the_thread->budget_algorithm = the_thread->Start.budget_algorithm;
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the_thread->budget_algorithm = the_thread->Start.budget_algorithm;
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the_thread->budget_callout = the_thread->Start.budget_callout;
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the_thread->budget_callout = the_thread->Start.budget_callout;
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_Context_Initialize(
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_Context_Initialize(
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&the_thread->Registers,
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&the_thread->Registers,
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the_thread->Start.Initial_stack.area,
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the_thread->Start.Initial_stack.area,
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the_thread->Start.Initial_stack.size,
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the_thread->Start.Initial_stack.size,
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the_thread->Start.isr_level,
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the_thread->Start.isr_level,
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_Thread_Handler,
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_Thread_Handler,
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is_fp
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is_fp
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);
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);
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}
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}
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