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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/rtems/regionimpl.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/rtems/regionimpl.h')
-rw-r--r--cpukit/include/rtems/rtems/regionimpl.h142
1 files changed, 142 insertions, 0 deletions
diff --git a/cpukit/include/rtems/rtems/regionimpl.h b/cpukit/include/rtems/rtems/regionimpl.h
new file mode 100644
index 0000000000..178b7ea32b
--- /dev/null
+++ b/cpukit/include/rtems/rtems/regionimpl.h
@@ -0,0 +1,142 @@
+/**
+ * @file
+ *
+ * @ingroup ClassicRegionImpl
+ *
+ * @brief Classic Region Manager Implementation
+ */
+
+/* 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.
+ */
+
+#ifndef _RTEMS_RTEMS_REGIONIMPL_H
+#define _RTEMS_RTEMS_REGIONIMPL_H
+
+#include <rtems/rtems/region.h>
+#include <rtems/score/apimutex.h>
+#include <rtems/score/heapimpl.h>
+#include <rtems/score/objectimpl.h>
+#include <rtems/score/threadqimpl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup ClassicRegionImpl Classic Region Manager Implementation
+ *
+ * @ingroup ClassicRegion
+ *
+ * @{
+ */
+
+#define REGION_OF_THREAD_QUEUE_QUEUE( queue ) \
+ RTEMS_CONTAINER_OF( queue, Region_Control, Wait_queue.Queue )
+
+/**
+ * The following defines the information control block used to
+ * manage this class of objects.
+ */
+extern Objects_Information _Region_Information;
+
+/**
+ * @brief Region_Allocate
+ *
+ * This function allocates a region control block from
+ * the inactive chain of free region control blocks.
+ */
+RTEMS_INLINE_ROUTINE Region_Control *_Region_Allocate( void )
+{
+ return (Region_Control *) _Objects_Allocate( &_Region_Information );
+}
+
+/**
+ * @brief Region_Free
+ *
+ * This routine frees a region control block to the
+ * inactive chain of free region control blocks.
+ */
+RTEMS_INLINE_ROUTINE void _Region_Free (
+ Region_Control *the_region
+)
+{
+ _Thread_queue_Destroy( &the_region->Wait_queue );
+ _Objects_Free( &_Region_Information, &the_region->Object );
+}
+
+RTEMS_INLINE_ROUTINE Region_Control *_Region_Get_and_lock( Objects_Id id )
+{
+ Region_Control *the_region;
+
+ _RTEMS_Lock_allocator();
+
+ the_region = (Region_Control *)
+ _Objects_Get_no_protection( id, &_Region_Information );
+
+ if ( the_region != NULL ) {
+ /* Keep allocator lock */
+ return the_region;
+ }
+
+ _RTEMS_Unlock_allocator();
+ return NULL;
+}
+
+RTEMS_INLINE_ROUTINE void _Region_Unlock( Region_Control *the_region )
+{
+ (void) the_region;
+ _RTEMS_Unlock_allocator();
+}
+
+/**
+ * @brief Region_Allocate_segment
+ *
+ * This function attempts to allocate a segment from the_region.
+ * If successful, it returns the address of the allocated segment.
+ * Otherwise, it returns NULL.
+ */
+RTEMS_INLINE_ROUTINE void *_Region_Allocate_segment (
+ Region_Control *the_region,
+ uintptr_t size
+)
+{
+ return _Heap_Allocate( &the_region->Memory, size );
+}
+
+/**
+ * @brief Region_Free_segment
+ *
+ * This function frees the_segment to the_region.
+ */
+RTEMS_INLINE_ROUTINE bool _Region_Free_segment (
+ Region_Control *the_region,
+ void *the_segment
+)
+{
+ return _Heap_Free( &the_region->Memory, the_segment );
+}
+
+/**
+ * @brief Process Region Queue
+ *
+ * This is a helper routine which is invoked any time memory is
+ * freed. It looks at the set of waiting tasks and attempts to
+ * satisfy all outstanding requests.
+ *
+ * @param[in] the_region is the the region
+ */
+extern void _Region_Process_queue(Region_Control *the_region);
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */