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, 60 insertions, 0 deletions

diff --git a/bsps/sparc/include/bsp/apbuart.h b/bsps/sparc/include/bsp/apbuart.h
new file mode 100644
index 0000000000..a324805d7d
--- /dev/null
+++ b/bsps/sparc/include/bsp/apbuart.h
@@ -0,0 +1,60 @@
+/**
+ * @file
+ * @ingroup sparc_bsp
+ * @defgroup uart UART
+ * @ingroup uart
+ * @brief Driver interface for APBUART
+ */
+
+/*
+ *  COPYRIGHT (c) 2007.
+ *  Gaisler Research
+ *
+ *  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 __APBUART_H__
+#define __APBUART_H__
+
+#include <ambapp.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define APBUART_CTRL_RE 0x1
+#define APBUART_CTRL_TE 0x2
+#define APBUART_CTRL_RI 0x4
+#define APBUART_CTRL_TI 0x8
+#define APBUART_CTRL_PS 0x10
+#define APBUART_CTRL_PE 0x20
+#define APBUART_CTRL_FL 0x40
+#define APBUART_CTRL_LB 0x80
+#define APBUART_CTRL_EC 0x100
+#define APBUART_CTRL_TF 0x200
+#define APBUART_CTRL_RF 0x400
+#define APBUART_CTRL_BI 0x1000
+#define APBUART_CTRL_DI 0x2000
+#define APBUART_CTRL_FA 0x80000000
+
+#define APBUART_STATUS_DR 0x1
+#define APBUART_STATUS_TS 0x2
+#define APBUART_STATUS_TE 0x4
+#define APBUART_STATUS_BR 0x8
+#define APBUART_STATUS_OV 0x10
+#define APBUART_STATUS_PE 0x20
+#define APBUART_STATUS_FE 0x40
+#define APBUART_STATUS_ERR 0x78
+#define APBUART_STATUS_TH 0x80
+#define APBUART_STATUS_RH 0x100
+#define APBUART_STATUS_TF 0x200
+#define APBUART_STATUS_RF 0x400
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __APBUART_H__ */