source: rtems/cpukit/score/src/threadloadenv.c @ 54cf0e34

4.115
Last change on this file since 54cf0e34 was c499856, checked in by Chris Johns <chrisj@…>, on 03/20/14 at 21:10:47

Change all references of rtems.com to rtems.org.

  • Property mode set to 100644
File size: 1.6 KB
Line 
1/**
2 * @file
3 *
4 * @brief Initializes Enviroment for A Thread
5 *
6 * @ingroup ScoreThread
7 */
8
9/*
10 *  COPYRIGHT (c) 1989-1999.
11 *  On-Line Applications Research Corporation (OAR).
12 *
13 *  The license and distribution terms for this file may be
14 *  found in the file LICENSE in this distribution or at
15 *  http://www.rtems.org/license/LICENSE.
16 */
17
18#if HAVE_CONFIG_H
19#include "config.h"
20#endif
21
22#include <rtems/score/threadimpl.h>
23
24void _Thread_Load_environment(
25  Thread_Control *the_thread
26)
27{
28  bool is_fp;
29  uint32_t isr_level;
30
31#if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE )
32  if ( the_thread->Start.fp_context ) {
33    the_thread->fp_context = the_thread->Start.fp_context;
34    _Context_Initialize_fp( &the_thread->fp_context );
35    is_fp = true;
36  } else
37#endif
38    is_fp = false;
39
40  the_thread->is_preemptible   = the_thread->Start.is_preemptible;
41  the_thread->budget_algorithm = the_thread->Start.budget_algorithm;
42  the_thread->budget_callout   = the_thread->Start.budget_callout;
43
44#if defined( RTEMS_SMP )
45  /*
46   * On SMP we have to start the threads with interrupts disabled, see also
47   * _Thread_Handler() and _Thread_Dispatch().  In _Thread_Handler() the
48   * _ISR_Set_level() is used to set the desired interrupt state of the thread.
49   */
50  isr_level = CPU_MODES_INTERRUPT_MASK;
51#else
52  isr_level = the_thread->Start.isr_level;
53#endif
54
55  _Context_Initialize(
56    &the_thread->Registers,
57    the_thread->Start.Initial_stack.area,
58    the_thread->Start.Initial_stack.size,
59    isr_level,
60    _Thread_Handler,
61    is_fp,
62    the_thread->Start.tls_area
63  );
64
65}
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