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, 129 insertions, 0 deletions

diff --git a/bsps/m68k/include/mcf5206/mcfmbus.h b/bsps/m68k/include/mcf5206/mcfmbus.h
new file mode 100644
index 0000000000..f70a70e483
--- /dev/null
+++ b/bsps/m68k/include/mcf5206/mcfmbus.h
@@ -0,0 +1,129 @@
+/*
+ * MCF5206e MBUS module (I2C bus) driver header file
+ *
+ *  Copyright (C) 2000 OKTET Ltd., St.-Petersburg, Russia
+ *  Author: Victor V. Vengerov <vvv@oktet.ru>
+ *
+ *  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 __MCFBSP_MCFMBUS_H__
+#define __MCFBSP_MCFMBUS_H__
+
+#include "mcf5206e.h"
+#include "i2c.h"
+
+/* States of I2C machine */
+typedef enum mcfmbus_i2c_state {
+    STATE_IDLE,
+    STATE_ADDR_7,
+    STATE_ADDR_1_W,
+    STATE_ADDR_1_R,
+    STATE_SENDING,
+    STATE_RECEIVING
+} mcfmbus_i2c_state;
+
+typedef struct mcfmbus {
+    uint32_t         base; /* ColdFire internal peripherial base
+                                    address */
+    enum mcfmbus_i2c_state state;/* State of I2C machine */
+    i2c_message           *msg;  /* Pointer to the first message in transfer */
+    int                    nmsg; /* Number of messages in transfer */
+    i2c_message           *cmsg; /* Current message */
+    int                    byte; /* Byte number in current message */
+    rtems_isr_entry        oldisr; /* Old interrupt handler */
+    rtems_id               sema; /* MBUS semaphore */
+    i2c_transfer_done      done; /* Transfer done function */
+    uintptr_t      done_arg_ptr; /* Done function argument ptr */
+} mcfmbus;
+
+/* mcfmbus_initialize --
+ *     Initialize ColdFire MBUS I2C bus controller.
+ *
+ * PARAMETERS:
+ *     i2c_bus - pointer to the bus descriptor structure
+ *     base    - ColdFire internal peripherial base address
+ *
+ * RETURNS:
+ *     RTEMS_SUCCESSFUL, or RTEMS error code when initialization failed.
+ */
+rtems_status_code
+mcfmbus_initialize(mcfmbus *i2c_bus, uint32_t   base);
+
+/* mcfmbus_select_clock_divider --
+ *     Select divider for system clock which is used for I2C bus clock
+ *     generation. Not each divider can be selected for I2C bus; this
+ *     function select nearest larger or equal divider, or maximum
+ *     possible divider, if passed value greater.
+ *
+ * PARAMETERS:
+ *     i2c_bus - pointer to the bus descriptor structure
+ *     divider - system frequency divider for I2C serial clock.
+ *
+ * RETURNS:
+ *     RTEMS_SUCCESSFUL, if operation performed successfully, or
+ *     RTEMS error code when failed.
+ */
+rtems_status_code
+mcfmbus_select_clock_divider(mcfmbus *i2c_bus, int divider);
+
+/* mcfmbus_i2c_transfer --
+ *     Initiate multiple-messages transfer over I2C bus via ColdFire MBUS
+ *     controller.
+ *
+ * PARAMETERS:
+ *     bus - pointer to MBUS controller descriptor
+ *     nmsg - number of messages
+ *     msg - pointer to messages array
+ *     done - function which is called when transfer is finished
+ *     done_arg_ptr - arbitrary argument ptr passed to done funciton
+ *
+ * RETURNS:
+ *     RTEMS_SUCCESSFUL if transfer initiated successfully, or error
+ *     code when failed.
+ */
+rtems_status_code
+mcfmbus_i2c_transfer(mcfmbus *bus, int nmsg, i2c_message *msg,
+                     i2c_transfer_done done, void *done_arg_ptr);
+
+/* mcfmbus_i2c_done --
+ *     Close ColdFire MBUS I2C bus controller and release all resources.
+ *
+ * PARAMETERS:
+ *     bus - pointer to MBUS controller descriptor
+ *
+ * RETURNS:
+ *     RTEMS_SUCCESSFUL, if transfer initiated successfully, or error
+ *     code when failed.
+ */
+rtems_status_code
+mcfmbus_i2c_done(mcfmbus *i2c_bus);
+
+/* mcfmbus_i2c_interrupt_handler --
+ *     ColdFire MBUS I2C bus controller interrupt handler. This function
+ *     called from real interrupt handler, and pointer to MBUS descriptor
+ *     structure passed to this function.
+ *
+ * PARAMETERS:
+ *     bus - pointert to the bus descriptor structure
+ *
+ * RETURNS:
+ *     none
+ */
+void mcfmbus_i2c_interrupt_handler(mcfmbus *bus);
+
+/* mcfmbus_poll --
+ *     MBUS module poll routine; used to poll events when I2C driver
+ *     operates in poll-driven mode.
+ *
+ * PARAMETERS:
+ *     none
+ *
+ * RETURNS:
+ *     none
+ */
+void mcfmbus_poll(mcfmbus *bus);
+
+#endif /* __MCFBSP_MCFMBUS_H__ */