context.h

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/*
 *  COPYRIGHT (c) 1989-2011.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.org/license/LICENSE.
 */
 
#ifndef _RTEMS_SCORE_CONTEXT_H
#define _RTEMS_SCORE_CONTEXT_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <rtems/score/cpu.h>
 
#if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE )
  #define CONTEXT_FP_SIZE \
    ( ( CPU_CONTEXT_FP_SIZE + CPU_HEAP_ALIGNMENT - 1 ) \
      & ~( CPU_HEAP_ALIGNMENT - 1 ) )
#else
  #define CONTEXT_FP_SIZE 0
#endif
 
#define _Context_Initialize( _the_context, _stack, _size, _isr, _entry, \
  _is_fp, _tls_area ) \
    _CPU_Context_Initialize( _the_context, _stack, _size, _isr, _entry, \
      _is_fp, _tls_area )
 
#if defined(_CPU_Context_Initialization_at_thread_begin)
  #define _Context_Initialization_at_thread_begin() \
     _CPU_Context_Initialization_at_thread_begin()
#else
  #define _Context_Initialization_at_thread_begin()
#endif
 
#define _Context_Switch( _executing, _heir ) \
   _CPU_Context_switch( _executing, _heir )
 
#define _Context_Restart_self( _the_context ) \
   _CPU_Context_Restart_self( _the_context )
 
#define _Context_Initialize_fp( _fp_area ) \
   _CPU_Context_Initialize_fp( _fp_area )
 
#define _Context_Restore_fp( _fp ) \
   _CPU_Context_restore_fp( _fp )
 
#define _Context_Save_fp( _fp ) \
   _CPU_Context_save_fp( _fp )
 
#if defined(_CPU_Context_Destroy)
  #define _Context_Destroy( _the_thread, _the_context ) \
    _CPU_Context_Destroy( _the_thread, _the_context )
#else
  #define _Context_Destroy( _the_thread, _the_context )
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif
/* end of include file */