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, 90 insertions, 0 deletions

diff --git a/cpukit/score/cpu/sparc/include/rtems/score/sparcimpl.h b/cpukit/score/cpu/sparc/include/rtems/score/sparcimpl.h
new file mode 100644
index 0000000000..9f9999b063
--- /dev/null
+++ b/cpukit/score/cpu/sparc/include/rtems/score/sparcimpl.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2016 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * 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_SPARCIMPL_H
+#define _RTEMS_SCORE_SPARCIMPL_H
+
+#include <rtems/score/cpu.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/*
+ * Provides a mutable alias to _SPARC_Counter for use in
+ * _SPARC_Counter_initialize().  The _SPARC_Counter and _SPARC_Counter_mutable
+ * are defined via the SPARC_COUNTER_DEFINITION define.
+ */
+extern SPARC_Counter _SPARC_Counter_mutable;
+
+CPU_Counter_ticks _SPARC_Counter_read_address( void );
+
+CPU_Counter_ticks _SPARC_Counter_read_asr23( void );
+
+CPU_Counter_ticks _SPARC_Counter_difference_normal(
+  CPU_Counter_ticks second,
+  CPU_Counter_ticks first
+);
+
+CPU_Counter_ticks _SPARC_Counter_difference_clock_period(
+  CPU_Counter_ticks second,
+  CPU_Counter_ticks first
+);
+
+/*
+ * Returns always a value of one regardless of the parameters.  This prevents
+ * an infinite loop in rtems_counter_delay_ticks().  Its only a reasonably safe
+ * default.
+ */
+CPU_Counter_ticks _SPARC_Counter_difference_one(
+  CPU_Counter_ticks second,
+  CPU_Counter_ticks first
+);
+
+static inline void _SPARC_Counter_initialize(
+  SPARC_Counter_read                counter_read,
+  SPARC_Counter_difference          counter_difference,
+  volatile const CPU_Counter_ticks *counter_address
+)
+{
+  _SPARC_Counter_mutable.counter_read = counter_read;
+  _SPARC_Counter_mutable.counter_difference = counter_difference;
+  _SPARC_Counter_mutable.counter_address = counter_address;
+}
+
+/*
+ * Defines the _SPARC_Counter and _SPARC_Counter_mutable global variables.
+ * Place this define in the global file scope of the CPU counter support file
+ * of the BSP.
+ */
+#define SPARC_COUNTER_DEFINITION \
+  __asm__ ( \
+    "\t.global\t_SPARC_Counter\n" \
+    "\t.global\t_SPARC_Counter_mutable\n" \
+    "\t.section\t.data._SPARC_Counter,\"aw\",@progbits\n" \
+    "\t.align\t4\n" \
+    "\t.type\t_SPARC_Counter, #object\n" \
+    "\t.size\t_SPARC_Counter, 12\n" \
+    "_SPARC_Counter:\n" \
+    "_SPARC_Counter_mutable:\n" \
+    "\t.long\t_SPARC_Counter_read_address\n" \
+    "\t.long\t_SPARC_Counter_difference_one\n" \
+    "\t.long\t_SPARC_Counter\n" \
+  )
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _RTEMS_SCORE_SPARCIMPL_H */