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, 187 insertions, 0 deletions

diff --git a/cpukit/include/rtems/score/smplockticket.h b/cpukit/include/rtems/score/smplockticket.h
new file mode 100644
index 0000000000..e04c4056a5
--- /dev/null
+++ b/cpukit/include/rtems/score/smplockticket.h
@@ -0,0 +1,187 @@
+/**
+ * @file
+ *
+ * @ingroup ScoreSMPLock
+ *
+ * @brief SMP Lock API
+ */
+
+/*
+ * Copyright (c) 2013, 2016 embedded brains GmbH
+ *
+ * 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_SMPLOCKTICKET_H
+#define _RTEMS_SCORE_SMPLOCKTICKET_H
+
+#include <rtems/score/cpuopts.h>
+
+#if defined(RTEMS_SMP)
+
+#include <rtems/score/atomic.h>
+#include <rtems/score/smplockstats.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/**
+ * @addtogroup ScoreSMPLock
+ *
+ * @{
+ */
+
+/**
+ * @brief SMP ticket lock control.
+ */
+typedef struct {
+  Atomic_Uint next_ticket;
+  Atomic_Uint now_serving;
+} SMP_ticket_lock_Control;
+
+/**
+ * @brief SMP ticket lock control initializer for static initialization.
+ */
+#define SMP_TICKET_LOCK_INITIALIZER \
+  { \
+    ATOMIC_INITIALIZER_UINT( 0U ), \
+    ATOMIC_INITIALIZER_UINT( 0U ) \
+  }
+
+/**
+ * @brief Initializes an SMP ticket lock.
+ *
+ * Concurrent initialization leads to unpredictable results.
+ *
+ * @param[in] lock The SMP ticket lock control.
+ */
+static inline void _SMP_ticket_lock_Initialize(
+  SMP_ticket_lock_Control *lock
+)
+{
+  _Atomic_Init_uint( &lock->next_ticket, 0U );
+  _Atomic_Init_uint( &lock->now_serving, 0U );
+}
+
+/**
+ * @brief Destroys an SMP ticket lock.
+ *
+ * Concurrent destruction leads to unpredictable results.
+ *
+ * @param[in] lock The SMP ticket lock control.
+ */
+static inline void _SMP_ticket_lock_Destroy( SMP_ticket_lock_Control *lock )
+{
+  (void) lock;
+}
+
+static inline void _SMP_ticket_lock_Do_acquire(
+  SMP_ticket_lock_Control *lock
+#if defined(RTEMS_PROFILING)
+  ,
+  SMP_lock_Stats          *stats,
+  SMP_lock_Stats_context  *stats_context
+#endif
+)
+{
+  unsigned int                   my_ticket;
+  unsigned int                   now_serving;
+#if defined(RTEMS_PROFILING)
+  unsigned int                   initial_queue_length;
+  SMP_lock_Stats_acquire_context acquire_context;
+
+  _SMP_lock_Stats_acquire_begin( &acquire_context );
+#endif
+
+  my_ticket =
+    _Atomic_Fetch_add_uint( &lock->next_ticket, 1U, ATOMIC_ORDER_RELAXED );
+
+#if defined(RTEMS_PROFILING)
+  now_serving =
+    _Atomic_Load_uint( &lock->now_serving, ATOMIC_ORDER_ACQUIRE );
+  initial_queue_length = my_ticket - now_serving;
+
+  if ( initial_queue_length > 0 ) {
+#endif
+
+    do {
+      now_serving =
+        _Atomic_Load_uint( &lock->now_serving, ATOMIC_ORDER_ACQUIRE );
+    } while ( now_serving != my_ticket );
+
+#if defined(RTEMS_PROFILING)
+  }
+
+  _SMP_lock_Stats_acquire_end(
+    &acquire_context,
+    stats,
+    stats_context,
+    initial_queue_length
+  );
+#endif
+}
+
+/**
+ * @brief Acquires an SMP ticket lock.
+ *
+ * This function will not disable interrupts.  The caller must ensure that the
+ * current thread of execution is not interrupted indefinite once it obtained
+ * the SMP ticket lock.
+ *
+ * @param[in] lock The SMP ticket lock control.
+ * @param[in] stats The SMP lock statistics.
+ * @param[out] stats_context The SMP lock statistics context.
+ */
+#if defined(RTEMS_PROFILING)
+  #define _SMP_ticket_lock_Acquire( lock, stats, stats_context ) \
+    _SMP_ticket_lock_Do_acquire( lock, stats, stats_context )
+#else
+  #define _SMP_ticket_lock_Acquire( lock, stats, stats_context ) \
+    _SMP_ticket_lock_Do_acquire( lock )
+#endif
+
+static inline void _SMP_ticket_lock_Do_release(
+  SMP_ticket_lock_Control *lock
+#if defined(RTEMS_PROFILING)
+  ,
+  const SMP_lock_Stats_context *stats_context
+#endif
+)
+{
+  unsigned int current_ticket =
+    _Atomic_Load_uint( &lock->now_serving, ATOMIC_ORDER_RELAXED );
+  unsigned int next_ticket = current_ticket + 1U;
+
+#if defined(RTEMS_PROFILING)
+  _SMP_lock_Stats_release_update( stats_context );
+#endif
+
+  _Atomic_Store_uint( &lock->now_serving, next_ticket, ATOMIC_ORDER_RELEASE );
+}
+
+/**
+ * @brief Releases an SMP ticket lock.
+ *
+ * @param[in] lock The SMP ticket lock control.
+ * @param[in] stats_context The SMP lock statistics context.
+ */
+#if defined(RTEMS_PROFILING)
+  #define _SMP_ticket_lock_Release( lock, stats_context ) \
+    _SMP_ticket_lock_Do_release( lock, stats_context )
+#else
+  #define _SMP_ticket_lock_Release( lock, stats_context ) \
+    _SMP_ticket_lock_Do_release( lock )
+#endif
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* RTEMS_SMP */
+
+#endif /* _RTEMS_SCORE_SMPLOCKTICKET_H */