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, 47 insertions, 0 deletions

diff --git a/cpukit/score/cpu/m68k/include/machine/elf_machdep.h b/cpukit/score/cpu/m68k/include/machine/elf_machdep.h
new file mode 100644
index 0000000000..9a987c69b5
--- /dev/null
+++ b/cpukit/score/cpu/m68k/include/machine/elf_machdep.h
@@ -0,0 +1,47 @@
+/*	$NetBSD: elf_machdep.h,v 1.7 2002/01/28 21:34:48 thorpej Exp $	*/
+
+#define	ELF32_MACHDEP_ENDIANNESS	ELFDATA2MSB
+#define	ELF32_MACHDEP_ID_CASES						\
+		case EM_68K:						\
+			break;
+
+#define	ELF64_MACHDEP_ENDIANNESS	XXX	/* break compilation */
+#define	ELF64_MACHDEP_ID_CASES						\
+		/* no 64-bit ELF machine types supported */
+
+#define	ELF32_MACHDEP_ID	EM_68K
+
+/*
+ * Machine-dependent ELF flags.  These are defined by the GNU tools.
+ */
+#define	EF_CPU32	0x00810000
+#define	EF_M68000	0x01000000
+
+#define ARCH_ELFSIZE		32	/* MD native binary size */
+
+/* m68k relocation types */
+#define	R_68K_NONE	0
+#define	R_68K_32	1
+#define	R_68K_16	2
+#define	R_68K_8		3
+#define	R_68K_PC32	4
+#define	R_68K_PC16	5
+#define	R_68K_PC8	6
+#define	R_68K_GOT32	7
+#define	R_68K_GOT16	8
+#define	R_68K_GOT8	9
+#define	R_68K_GOT32O	10
+#define	R_68K_GOT16O	11
+#define	R_68K_GOT8O	12
+#define	R_68K_PLT32	13
+#define	R_68K_PLT16	14
+#define	R_68K_PLT8	15
+#define	R_68K_PLT32O	16
+#define	R_68K_PLT16O	17
+#define	R_68K_PLT8O	18
+#define	R_68K_COPY	19
+#define	R_68K_GLOB_DAT	20
+#define	R_68K_JMP_SLOT	21
+#define	R_68K_RELATIVE	22
+
+#define	R_TYPE(name)	__CONCAT(R_68K_,name)