score: Remove CPU_PROVIDES_IDLE_THREAD_BODY

Remove the CPU_PROVIDES_IDLE_THREAD_BODY option to avoid unnecessary
conditional compilation.

Close #3539.

3 files changed, 29 insertions, 29 deletions

diff --git a/cpukit/score/cpu/no_cpu/Makefile.am b/cpukit/score/cpu/no_cpu/Makefile.am
index 0d89f5af2b..b5f59e56f8 100644
--- a/cpukit/score/cpu/no_cpu/Makefile.am
+++ b/cpukit/score/cpu/no_cpu/Makefile.am
@@ -4,6 +4,7 @@ noinst_LIBRARIES = libscorecpu.a
 libscorecpu_a_SOURCES = cpu.c cpu_asm.c
 libscorecpu_a_SOURCES += cpucounterfrequency.c
 libscorecpu_a_SOURCES += cpucounterread.c
+libscorecpu_a_SOURCES += cpuidle.c
 libscorecpu_a_CPPFLAGS = $(AM_CPPFLAGS)
 
 include $(top_srcdir)/automake/local.am
diff --git a/cpukit/score/cpu/no_cpu/cpuidle.c b/cpukit/score/cpu/no_cpu/cpuidle.c
new file mode 100644
index 0000000000..de66b39faa
--- /dev/null
+++ b/cpukit/score/cpu/no_cpu/cpuidle.c
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2013-2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/score/cpu.h>
+
+void *_CPU_Thread_Idle_body( uintptr_t ignored )
+{
+  while ( true ) {
+    /* Do nothing */
+  }
+
+  return NULL;
+}
diff --git a/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h b/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h
index 427e381582..8e66182bba 100644
--- a/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h
@@ -198,32 +198,6 @@ extern "C" {
 #define CPU_ENABLE_ROBUST_THREAD_DISPATCH FALSE
 
 /**
- * Does this port provide a CPU dependent IDLE task implementation?
- *
- * If TRUE, then the routine @ref _CPU_Thread_Idle_body
- * must be provided and is the default IDLE thread body instead of
- * @ref _CPU_Thread_Idle_body.
- *
- * If FALSE, then use the generic IDLE thread body if the BSP does
- * not provide one.
- *
- * This is intended to allow for supporting processors which have
- * a low power or idle mode.  When the IDLE thread is executed, then
- * the CPU can be powered down.
- *
- * The order of precedence for selecting the IDLE thread body is:
- *
- *   -#  BSP provided
- *   -#  CPU dependent (if provided)
- *   -#  generic (if no BSP and no CPU dependent)
- *
- * Port Specific Information:
- *
- * XXX document implementation including references if appropriate
- */
-#define CPU_PROVIDES_IDLE_THREAD_BODY    TRUE
-
-/**
  * Does the stack grow up (toward higher addresses) or down
  * (toward lower addresses)?
  *
@@ -1044,9 +1018,6 @@ void _CPU_ISR_install_vector(
 /**
  * This routine is the CPU dependent IDLE thread body.
  *
- * NOTE:  It need only be provided if @ref CPU_PROVIDES_IDLE_THREAD_BODY
- *         is TRUE.
- *
  * Port Specific Information:
  *
  * XXX document implementation including references if appropriate