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, 146 insertions, 0 deletions

diff --git a/bsps/powerpc/tqm8xx/include/bsp/spi.h b/bsps/powerpc/tqm8xx/include/bsp/spi.h
new file mode 100644
index 0000000000..e2af971c8d
--- /dev/null
+++ b/bsps/powerpc/tqm8xx/include/bsp/spi.h
@@ -0,0 +1,146 @@
+/*===============================================================*\
+| Project: RTEMS support for MPC8xx                               |
++-----------------------------------------------------------------+
+|                    Copyright (c) 2009                           |
+|                    Embedded Brains GmbH                         |
+|                    Obere Lagerstr. 30                           |
+|                    D-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.                           |
+|                                                                 |
++-----------------------------------------------------------------+
+| this file contains the MPC8xx SPI driver declarations           |
+\*===============================================================*/
+#ifndef _M8XX_SPIDRV_H
+#define _M8XX_SPIDRV_H
+
+#include <mpc8xx.h>
+#include <rtems/libi2c.h>
+#include <rtems/irq.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct m8xx_spi_softc {
+  int                     initialized;
+  rtems_id                irq_sema_id;
+  rtems_isr_entry         old_handler;
+  m8xxBufferDescriptor_t *rx_bd;
+  m8xxBufferDescriptor_t *tx_bd;
+} m8xx_spi_softc_t ;
+
+typedef struct {
+  rtems_libi2c_bus_t  bus_desc;
+  m8xx_spi_softc_t softc;
+} m8xx_spi_desc_t;
+
+/*=========================================================================*\
+| Function:                                                                 |
+\*-------------------------------------------------------------------------*/
+rtems_status_code m8xx_spi_init
+(
+/*-------------------------------------------------------------------------*\
+| Purpose:                                                                  |
+|   initialize the driver                                                   |
++---------------------------------------------------------------------------+
+| Input Parameters:                                                         |
+\*-------------------------------------------------------------------------*/
+ rtems_libi2c_bus_t *bh                  /* bus specifier structure        */
+ );
+/*-------------------------------------------------------------------------*\
+| Return Value:                                                             |
+|    o = ok or error code                                                   |
+\*=========================================================================*/
+
+/*=========================================================================*\
+| Function:                                                                 |
+\*-------------------------------------------------------------------------*/
+int m8xx_spi_read_bytes
+(
+/*-------------------------------------------------------------------------*\
+| Purpose:                                                                  |
+|   receive some bytes from SPI device                                      |
++---------------------------------------------------------------------------+
+| Input Parameters:                                                         |
+\*-------------------------------------------------------------------------*/
+ rtems_libi2c_bus_t *bh,                 /* bus specifier structure        */
+ unsigned char *buf,                     /* buffer to store bytes          */
+ int len                                 /* number of bytes to receive     */
+ );
+/*-------------------------------------------------------------------------*\
+| Return Value:                                                             |
+|    number of bytes received or (negative) error code                      |
+\*=========================================================================*/
+
+/*=========================================================================*\
+| Function:                                                                 |
+\*-------------------------------------------------------------------------*/
+int m8xx_spi_write_bytes
+(
+/*-------------------------------------------------------------------------*\
+| Purpose:                                                                  |
+|   send some bytes to SPI device                                           |
++---------------------------------------------------------------------------+
+| Input Parameters:                                                         |
+\*-------------------------------------------------------------------------*/
+ rtems_libi2c_bus_t *bh,                 /* bus specifier structure        */
+ unsigned char *buf,                     /* buffer to send                 */
+ int len                                 /* number of bytes to send        */
+
+ );
+/*-------------------------------------------------------------------------*\
+| Return Value:                                                             |
+|    number of bytes sent or (negative) error code                          |
+\*=========================================================================*/
+
+/*=========================================================================*\
+| Function:                                                                 |
+\*-------------------------------------------------------------------------*/
+rtems_status_code m8xx_spi_set_tfr_mode
+(
+/*-------------------------------------------------------------------------*\
+| Purpose:                                                                  |
+|   set SPI to desired baudrate/clock mode/character mode                   |
++---------------------------------------------------------------------------+
+| Input Parameters:                                                         |
+\*-------------------------------------------------------------------------*/
+ rtems_libi2c_bus_t *bh,                 /* bus specifier structure        */
+ const rtems_libi2c_tfr_mode_t *tfr_mode /* transfer mode info             */
+ );
+/*-------------------------------------------------------------------------*\
+| Return Value:                                                             |
+|    rtems_status_code                                                      |
+\*=========================================================================*/
+
+/*=========================================================================*\
+| Function:                                                                 |
+\*-------------------------------------------------------------------------*/
+int m8xx_spi_ioctl
+(
+/*-------------------------------------------------------------------------*\
+| Purpose:                                                                  |
+|   perform selected ioctl function for SPI                                 |
++---------------------------------------------------------------------------+
+| Input Parameters:                                                         |
+\*-------------------------------------------------------------------------*/
+ rtems_libi2c_bus_t *bh,                 /* bus specifier structure        */
+ int                 cmd,                /* ioctl command code             */
+ void               *arg                 /* additional argument array      */
+ );
+/*-------------------------------------------------------------------------*\
+| Return Value:                                                             |
+|    rtems_status_code                                                      |
+\*=========================================================================*/
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _M8XX_SPIDRV_H */