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, 98 insertions, 0 deletions

diff --git a/bsps/arm/lpc176x/include/bsp.h b/bsps/arm/lpc176x/include/bsp.h
new file mode 100644
index 0000000000..e81e1cd53c
--- /dev/null
+++ b/bsps/arm/lpc176x/include/bsp.h
@@ -0,0 +1,98 @@
+/**
+ * @file
+ *
+ * @ingroup lpc176x
+ *
+ * @brief Global BSP definitions.
+ */
+
+/*
+ * Copyright (c) 2008-2013 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  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.
+ */
+
+#ifndef LIBBSP_ARM_LPC176X_BSP_H
+#define LIBBSP_ARM_LPC176X_BSP_H
+
+#include <bspopts.h>
+
+#define LPC176X_PCLK ( LPC176X_CCLK / LPC176X_PCLKDIV )
+#define LPC176X_MPU_REGION_COUNT 8u
+
+#define BSP_FEATURE_IRQ_EXTENSION
+#define BSP_ARMV7M_IRQ_PRIORITY_DEFAULT ( 29u << 3u )
+#define BSP_ARMV7M_SYSTICK_PRIORITY ( 30u << 3u )
+#define BSP_ARMV7M_SYSTICK_FREQUENCY LPC176X_CCLK
+
+#ifndef ASM
+
+#include <rtems.h>
+#include <bsp/default-initial-extension.h>
+
+/** Define operation count for Tests */
+#define OPERATION_COUNT 4
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+struct rtems_bsdnet_ifconfig;
+
+/**
+ * @defgroup lpc176x LPC176X Support
+ *
+ * @ingroup bsp_arm
+ *
+ * @brief LPC176X support package.
+ *
+ * @{
+ */
+
+/**
+ * @brief Optimized idle task.
+ *
+ * This idle task sets the power mode to idle.  This causes the processor
+ * clock to be stopped, while on-chip peripherals remain active.
+ * Any enabled interrupt from a peripheral or an external interrupt source
+ *  will cause the processor to resume execution.
+ *
+ * To enable the idle task use the following in the system configuration:
+ *
+ * @code
+ * #include <bsp.h>
+ *
+ * #define CONFIGURE_INIT
+ *
+ * #define CONFIGURE_IDLE_TASK_BODY bsp_idle_thread
+ *
+ * #include <confdefs.h>
+ * @endcode
+ */
+void*bsp_idle_thread( uintptr_t ignored );
+
+#define BSP_CONSOLE_UART_BASE 0x4000C000U
+
+/**
+ * @brief Restarts the bsp with "addr" address
+ * @param addr Address used to restart the bsp
+ */
+void bsp_restart( const void *addr );
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* ASM */
+
+#endif /* LIBBSP_ARM_LPC176X_BSP_H */