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, 132 insertions, 0 deletions

diff --git a/cpukit/include/rtems/rtems/modes.h b/cpukit/include/rtems/rtems/modes.h
new file mode 100644
index 0000000000..547ae13e05
--- /dev/null
+++ b/cpukit/include/rtems/rtems/modes.h
@@ -0,0 +1,132 @@
+/**
+ * @file rtems/rtems/modes.h
+ *
+ * @defgroup ClassicModes Modes
+ *
+ * @ingroup ClassicRTEMS
+ * @brief RTEMS thread and RTEMS_ASR modes
+ *
+ * This include file contains all constants and structures associated
+ * with the RTEMS thread and RTEMS_ASR modes.
+ */
+
+/* COPYRIGHT (c) 1989-2013.
+ * 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_RTEMS_MODES_H
+#define _RTEMS_RTEMS_MODES_H
+
+#include <rtems/score/cpu.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ *  @defgroup ClassicModes Modes
+ *
+ *  @ingroup ClassicRTEMS
+ *
+ *  This encapsulates functionality related to the task modes supported
+ *  by the Classic API Task Manager.
+ */
+/**@{*/
+
+/**
+ *  The following type defines the control block used to manage
+ *  each a mode set.
+ */
+typedef uint32_t   Modes_Control;
+
+/**
+ *  The following constants define the individual modes and masks
+ *  which may be used to compose a mode set and to alter modes.
+ */
+#define RTEMS_ALL_MODE_MASKS     0x0000ffff
+
+/**
+ *  This mode constant is the default mode set.
+ */
+#define RTEMS_DEFAULT_MODES     0x00000000
+
+/**
+ *  This mode constant is used when the user wishes to obtain their
+ *  current execution mode.
+ */
+#define RTEMS_CURRENT_MODE      0
+
+/** This mode constant corresponds to the timeslice enable/disable bit. */
+#define RTEMS_TIMESLICE_MASK  0x00000200
+
+/** This mode constant corresponds to the preemption enable/disable bit. */
+#define RTEMS_PREEMPT_MASK    0x00000100
+
+/** This mode constant corresponds to the signal enable/disable bit. */
+#define RTEMS_ASR_MASK        0x00000400
+
+/** This mode constant corresponds to the interrupt enable/disable bits. */
+#define RTEMS_INTERRUPT_MASK  CPU_MODES_INTERRUPT_MASK
+
+/** This mode constant is used to indicate preemption is enabled. */
+#define RTEMS_PREEMPT      0x00000000
+/** This mode constant is used to indicate preemption is disabled. */
+#define RTEMS_NO_PREEMPT   0x00000100
+
+/** This mode constant is used to indicate timeslicing is disabled. */
+#define RTEMS_NO_TIMESLICE 0x00000000
+/** This mode constant is used to indicate timeslicing is enabled. */
+#define RTEMS_TIMESLICE    0x00000200
+
+/** This mode constant is used to indicate signal processing is enabled. */
+#define RTEMS_ASR          0x00000000
+/** This mode constant is used to indicate signal processing is disabled. */
+#define RTEMS_NO_ASR       0x00000400
+
+/**
+ * @brief RTEMS_INTERRUPT_LEVEL
+ *
+ * This function returns the processor dependent interrupt
+ * level which corresponds to the requested interrupt level.
+ *
+ * @note RTEMS supports 256 interrupt levels using the least
+ *       significant eight bits of MODES.CONTROL. On any
+ *       particular CPU, fewer than 256 levels may be supported.
+ */
+#define RTEMS_INTERRUPT_LEVEL( _mode_set ) \
+  ( (_mode_set) & RTEMS_INTERRUPT_MASK )
+
+/**
+ *  @brief Interrupt Mask Variable
+ *
+ *  This variable is used by bindings from languages other than C and C++.
+ */
+extern const uint32_t rtems_interrupt_mask;
+
+/**
+ * @brief Body for RTEMS_INTERRUPT_LEVEL Macro
+ *
+ * @param[in] level is the desired interrupt level
+ *
+ * @retval This methods returns a mode with the desired interrupt
+ *         @a level in the proper bitfield location.
+ *
+ * @note This variable is used by bindings from languages other than
+ *       C and C++.
+ */
+Modes_Control rtems_interrupt_level_body(
+  uint32_t   level
+);
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */