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authorChris Johns <chrisj@rtems.org>2017-12-23 18:18:56 +1100
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-01-25 08:45:26 +0100
commit2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 (patch)
tree44759efe9374f13200a97e96d91bd9a2b7e5ce2a /cpukit/include/rtems/score/schedulernodeimpl.h
parentMAINTAINERS: Add myself to Write After Approval. (diff)
downloadrtems-2afb22b7e1ebcbe40373ff7e0efae7d207c655a9.tar.bz2
Remove make preinstall
A speciality of the RTEMS build system was the make preinstall step. It copied header files from arbitrary locations into the build tree. The header files were included via the -Bsome/build/tree/path GCC command line option. This has at least seven problems: * The make preinstall step itself needs time and disk space. * Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error. * There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult. * The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit. * An introduction of a new build system is difficult. * Include paths specified by the -B option are system headers. This may suppress warnings. * The parallel build had sporadic failures on some hosts. This patch removes the make preinstall step. All installed header files are moved to dedicated include directories in the source tree. Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc, etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g. erc32, imx, qoriq, etc. The new cpukit include directories are: * cpukit/include * cpukit/score/cpu/@RTEMS_CPU@/include * cpukit/libnetworking The new BSP include directories are: * bsps/include * bsps/@RTEMS_CPU@/include * bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include There are build tree include directories for generated files. The include directory order favours the most general header file, e.g. it is not possible to override general header files via the include path order. The "bootstrap -p" option was removed. The new "bootstrap -H" option should be used to regenerate the "headers.am" files. Update #3254.
Diffstat (limited to 'cpukit/include/rtems/score/schedulernodeimpl.h')
-rw-r--r--cpukit/include/rtems/score/schedulernodeimpl.h146
1 files changed, 146 insertions, 0 deletions
diff --git a/cpukit/include/rtems/score/schedulernodeimpl.h b/cpukit/include/rtems/score/schedulernodeimpl.h
new file mode 100644
index 0000000000..8997b3f218
--- /dev/null
+++ b/cpukit/include/rtems/score/schedulernodeimpl.h
@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2014, 2017 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.
+ */
+
+#ifndef _RTEMS_SCORE_SCHEDULERNODEIMPL_H
+#define _RTEMS_SCORE_SCHEDULERNODEIMPL_H
+
+#include <rtems/score/schedulernode.h>
+#include <rtems/score/priorityimpl.h>
+
+struct _Scheduler_Control;
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#define SCHEDULER_NODE_OF_WAIT_PRIORITY_NODE( node ) \
+ RTEMS_CONTAINER_OF( node, Scheduler_Node, Wait.Priority.Node.Node.Chain )
+
+#define SCHEDULER_NODE_OF_WAIT_PRIORITY( node ) \
+ RTEMS_CONTAINER_OF( node, Scheduler_Node, Wait.Priority )
+
+/**
+ * @brief Priority append indicator for the priority control used for the
+ * scheduler node priority.
+ */
+#define SCHEDULER_PRIORITY_APPEND_FLAG 1
+
+RTEMS_INLINE_ROUTINE void _Scheduler_Node_do_initialize(
+ const struct _Scheduler_Control *scheduler,
+ Scheduler_Node *node,
+ Thread_Control *the_thread,
+ Priority_Control priority
+)
+{
+ node->owner = the_thread;
+
+ node->Priority.value = priority;
+
+#if defined(RTEMS_SMP)
+ _Chain_Initialize_node( &node->Thread.Wait_node );
+ node->Wait.Priority.scheduler = scheduler;
+ node->user = the_thread;
+ node->idle = NULL;
+ _SMP_sequence_lock_Initialize( &node->Priority.Lock );
+#else
+ (void) scheduler;
+ (void) the_thread;
+#endif
+}
+
+RTEMS_INLINE_ROUTINE const Scheduler_Control *_Scheduler_Node_get_scheduler(
+ const Scheduler_Node *node
+)
+{
+ return _Priority_Get_scheduler( &node->Wait.Priority );
+}
+
+RTEMS_INLINE_ROUTINE Thread_Control *_Scheduler_Node_get_owner(
+ const Scheduler_Node *node
+)
+{
+ return node->owner;
+}
+
+RTEMS_INLINE_ROUTINE Priority_Control _Scheduler_Node_get_priority(
+ Scheduler_Node *node
+)
+{
+ Priority_Control priority;
+
+#if defined(RTEMS_SMP)
+ unsigned int seq;
+
+ do {
+ seq = _SMP_sequence_lock_Read_begin( &node->Priority.Lock );
+#endif
+
+ priority = node->Priority.value;
+
+#if defined(RTEMS_SMP)
+ } while ( _SMP_sequence_lock_Read_retry( &node->Priority.Lock, seq ) );
+#endif
+
+ return priority;
+}
+
+RTEMS_INLINE_ROUTINE void _Scheduler_Node_set_priority(
+ Scheduler_Node *node,
+ Priority_Control new_priority,
+ bool prepend_it
+)
+{
+#if defined(RTEMS_SMP)
+ unsigned int seq;
+
+ seq = _SMP_sequence_lock_Write_begin( &node->Priority.Lock );
+#endif
+
+ new_priority |= ( prepend_it ? 0 : SCHEDULER_PRIORITY_APPEND_FLAG );
+ node->Priority.value = new_priority;
+
+#if defined(RTEMS_SMP)
+ _SMP_sequence_lock_Write_end( &node->Priority.Lock, seq );
+#endif
+}
+
+#if defined(RTEMS_SMP)
+RTEMS_INLINE_ROUTINE Thread_Control *_Scheduler_Node_get_user(
+ const Scheduler_Node *node
+)
+{
+ return node->user;
+}
+
+RTEMS_INLINE_ROUTINE void _Scheduler_Node_set_user(
+ Scheduler_Node *node,
+ Thread_Control *user
+)
+{
+ node->user = user;
+}
+
+RTEMS_INLINE_ROUTINE Thread_Control *_Scheduler_Node_get_idle(
+ const Scheduler_Node *node
+)
+{
+ return node->idle;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _RTEMS_SCORE_SCHEDULERNODEIMPL_H */