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.

1 files changed, 109 insertions, 0 deletions

diff --git a/cpukit/include/rtems/score/apimutex.h b/cpukit/include/rtems/score/apimutex.h
new file mode 100644
index 0000000000..f43edf23f4
--- /dev/null
+++ b/cpukit/include/rtems/score/apimutex.h
@@ -0,0 +1,109 @@
+/**
+ * @file
+ *
+ * @ingroup ScoreAPIMutex
+ *
+ * @brief API Mutex Handler API
+ */
+
+/*
+ *  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_SCORE_APIMUTEX_H
+#define _RTEMS_SCORE_APIMUTEX_H
+
+#include <rtems/score/thread.h>
+
+#include <sys/lock.h>
+
+/**
+ * @defgroup ScoreAPIMutex API Mutex Handler
+ *
+ * @ingroup Score
+ *
+ * @brief Provides routines to ensure mutual exclusion on API level.
+ */
+/**@{**/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Control block used to manage each API mutex.
+ */
+typedef struct {
+  /**
+   * A recursive mutex.
+   */
+  struct _Mutex_recursive_Control Mutex;
+
+  /**
+   * @brief The thread life protection state before the outer-most mutex
+   * obtain.
+   */
+  Thread_Life_state previous_thread_life_state;
+} API_Mutex_Control;
+
+/**
+ * @brief Statically initialize an API mutex.
+ */
+#define API_MUTEX_INITIALIZER( name ) \
+  { _MUTEX_RECURSIVE_NAMED_INITIALIZER( name ), 0 }
+
+/**
+ * @brief Acquires the specified API mutex.
+ *
+ * @param[in] mutex The API mutex.
+ */
+void _API_Mutex_Lock( API_Mutex_Control *mutex );
+
+/**
+ * @brief Releases the specified API mutex.
+ *
+ * @param[in] mutex The API mutex.
+ */
+void _API_Mutex_Unlock( API_Mutex_Control *mutex );
+
+/**
+ * @brief Checks if the specified API mutex is owned by the executing thread.
+ *
+ * @param[in] mutex The API mutex.
+ */
+bool _API_Mutex_Is_owner( const API_Mutex_Control *mutex );
+
+/** @} */
+
+/**
+ * @defgroup ScoreAllocatorMutex RTEMS Allocator Mutex
+ *
+ * @ingroup ScoreAPIMutex
+ *
+ * @brief Protection for all memory allocations and deallocations in RTEMS.
+ *
+ * When the APIs all use this for allocation and deallocation protection, then
+ * this possibly should be renamed and moved to a higher level in the
+ * hierarchy.
+ */
+/**@{**/
+
+void _RTEMS_Lock_allocator( void );
+
+void _RTEMS_Unlock_allocator( void );
+
+bool _RTEMS_Allocator_is_owner( void );
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/*  end of include file */