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, 34 insertions, 0 deletions

diff --git a/cpukit/score/cpu/lm32/include/machine/elf_machdep.h b/cpukit/score/cpu/lm32/include/machine/elf_machdep.h
new file mode 100644
index 0000000000..29c75b89db
--- /dev/null
+++ b/cpukit/score/cpu/lm32/include/machine/elf_machdep.h
@@ -0,0 +1,34 @@
+#define ELF32_MACHDEP_ENDIANNESS		ELFDATA2MSB
+
+#define ELF32_MACHDEP_ID_CASES \
+	case EM_LATTICEMICO32: \
+		break;
+
+#define ELF32_MACHDEP_ID	EM_LATTICEMICO32
+
+#define EF_MACH32_MACH		0x00000001
+
+//#define EF_BLACKFIN
+
+#define ARCH_ELFSIZE	32
+
+#define R_LM32_NONE			0
+#define R_LM32_8				1
+#define R_LM32_16				2
+#define R_LM32_32				3
+#define R_LM32_HI16			4
+#define R_LM32_LO16			5
+#define R_LM32_GPREL16	6
+#define R_LM32_CALL			7
+#define R_LM32_BRANCH		8
+#define	R_LM32_GNU_VTINHERIT	9
+#define R_LM32_GNU_VTENTRY		10
+#define R_LM32_16_GOT		11
+#define R_LM32_GOTOFF_HI16		12
+#define	R_LM32_GOTOFF_LO16		13
+#define R_LM32_COPY			14
+#define R_LM32_GLOT_DAT	15
+#define R_LM32_JMP_SLOT	16
+#define R_LM32_RELATIVE	17
+
+#define R_TYPE(name)		__CONCAT(R_LM32_,name)