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, 88 insertions, 0 deletions

diff --git a/cpukit/include/rtems/posix/ptimer.h b/cpukit/include/rtems/posix/ptimer.h
new file mode 100644
index 0000000000..f6de4ccb57
--- /dev/null
+++ b/cpukit/include/rtems/posix/ptimer.h
@@ -0,0 +1,88 @@
+/**
+ * @file
+ * 
+ * @brief POSIX Timers Private Support
+ *
+ * This include file contains all the private support information for
+ * POSIX timers.
+ */
+
+/*
+ *  Initial Implementation:
+ *    COPYRIGHT (c) 1998.  Alfonso Escalera Piña
+ *    Largely rewritten by Joel Sherrill (1999).
+ *
+ *  COPYRIGHT (c) 1999-2013.
+ *  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_POSIX_PTIMER_H
+#define _RTEMS_POSIX_PTIMER_H
+
+/**
+ * @defgroup POSIX_PRIV_TIMERS POSIX Timers
+ *
+ * @ingroup POSIXAPI
+ */
+/**@{**/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rtems/posix/config.h>
+
+/**
+ *  @brief Create a Per-Process Timer
+ */
+int timer_create(
+  clockid_t        clock_id,
+  struct sigevent *evp,
+  timer_t         *timerid
+);
+
+/**
+ *  @brief Delete a Per-Process Timer
+ */
+int timer_delete(
+  timer_t timerid
+);
+
+/**
+ *  @brief Set a Per-Process Timer
+ */
+int timer_settime(
+  timer_t                  timerid,
+  int                      flags,
+  const struct itimerspec *value,
+  struct itimerspec       *ovalue
+);
+
+/**
+ *  @brief Set a Per-Process Timer
+ */
+int timer_gettime(
+  timer_t            timerid,
+  struct itimerspec *value
+);
+
+/**
+ * @brief Get overrun count for a Per-Process Timer
+ * 
+ * The expiration of a timer must increase by one a counter.
+ * After the signal handler associated to the timer finishes
+ * its execution, _POSIX_Timer_TSR will have to set this counter to 0.
+ */
+int timer_getoverrun(
+  timer_t   timerid
+);
+
+#ifdef __cplusplus
+}
+#endif
+/** @} */
+
+#endif /* _RTEMS_POSIX_PTIMER_H */