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/**
 *  @file
 *
 *  @brief Deallocate Thread Stack
 *  @ingroup ScoreThread
 */

/*
 *  COPYRIGHT (c) 1989-2008.
 *  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.
 */

#if HAVE_CONFIG_H
#include "config.h"
#endif

#include <rtems/score/threadimpl.h>
#include <rtems/config.h>

void _Thread_Stack_Free(
  Thread_Control *the_thread
)
{
  rtems_stack_free_hook stack_free_hook =
    rtems_configuration_get_stack_free_hook();

  #if defined(RTEMS_SCORE_THREAD_ENABLE_USER_PROVIDED_STACK_VIA_API)
    /*
     *  If the API provided the stack space, then don't free it.
     */
    if ( !the_thread->Start.core_allocated_stack )
      return;
  #endif

  /*
   * Call ONLY the CPU table stack free hook, or the
   * the RTEMS workspace free.  This is so the free
   * routine properly matches the allocation of the stack.
   */

  (*stack_free_hook)( the_thread->Start.Initial_stack.area );
}