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, 85 insertions, 0 deletions

diff --git a/bsps/powerpc/include/libcpu/bat.h b/bsps/powerpc/include/libcpu/bat.h
new file mode 100644
index 0000000000..2a27e810ee
--- /dev/null
+++ b/bsps/powerpc/include/libcpu/bat.h
@@ -0,0 +1,85 @@
+/*
+ * bat.h
+ *
+ *	    This file contains declaration of C function to
+ *          Instantiate 60x/7xx ppc Block Address Translation (BAT) registers.
+ *	    More detailed information can be found on motorola
+ *	    site and more precisely in the following book :
+ *
+ *		MPC750
+ *		Risc Microporcessor User's Manual
+ *		Motorola REF : MPC750UM/AD 8/97
+ *
+ * Copyright (C) 1999  Eric Valette (valette@crf.canon.fr)
+ *                     Canon Centre Recherche France.
+ *
+ *  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 _LIBCPU_BAT_H
+#define _LIBCPU_BAT_H
+
+#include <libcpu/mmu.h>
+#include <libcpu/pgtable.h>
+
+#define IO_PAGE	(_PAGE_NO_CACHE | _PAGE_GUARDED | _PAGE_RW)
+
+#ifndef ASM
+/* Take no risks -- the essential parts of this routine run with
+ * interrupts disabled!
+ *
+ * The routine does basic parameter checks:
+ *   - Index must be 0..3 (0..7 on 7455, 7457).
+ *     If an index > 3 is requested the 745x is
+ *     programmed to enable the higher BATs.
+ *   - Size must be a power of two and <= 1<<28
+ *     (<=1<<31 on 7455, 7457. Also, on these processors
+ *     the special value 0xffffffff is allowed which stands
+ *     for 1<<32).
+ *     If a size > 1<<28 is requested, the 745x is
+ *     programmed to enable the larger block sizes.
+ *   - Bat ranges must not overlap.
+ *   - Physical & virtual addresses must be aligned
+ *     to the size.
+ *
+ * RETURNS: zero on success, nonzero on failure.
+ */
+extern int setdbat(int bat_index, unsigned long virt, unsigned long phys,
+		    unsigned int size, int flags);
+
+/* Same as setdbat but sets IBAT */
+extern int setibat(int bat_index, unsigned long virt, unsigned long phys,
+		    unsigned int size, int flags);
+
+/* read DBAT # 'idx' into *pu / *pl. NULL pointers may be passed.
+ * If pu and pl are NULL, the bat contents are dumped to the console (printk).
+ *
+ * RETURNS: upper BAT contents or (-1) if index is invalid
+ */
+extern int getdbat(int bat_index, unsigned long *pu, unsigned long *pl);
+
+/* Same as getdbat but reads IBAT */
+extern int getibat(int bat_index, unsigned long *pu, unsigned long *pl);
+
+/* Do not use the asm-routines; they are obsolete; use setdbat() instead */
+extern void asm_setdbat0(unsigned int uperPart, unsigned int lowerPart);
+extern void asm_setdbat1(unsigned int uperPart, unsigned int lowerPart);
+extern void asm_setdbat2(unsigned int uperPart, unsigned int lowerPart);
+extern void asm_setdbat3(unsigned int uperPart, unsigned int lowerPart);
+#else
+
+/* Initialize all bats (upper and lower) to zero. This routine should *only*
+ * be called during early BSP initialization when no C-ABI is available
+ * yet.
+ * This routine clobbers r3 and r4.
+ * NOTE: on 7450 CPUs all 8 dbat/ibat units are cleared. On 601 CPUs only
+ *       4 ibats.
+ */
+	.globl CPU_clear_bats_early
+	.type  CPU_clear_bats_early,@function
+
+#endif
+
+#endif /* _LIBCPU_BAT_H */