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, 235 insertions, 0 deletions

diff --git a/cpukit/include/rtems/rtl/rtl-indirect-ptr.h b/cpukit/include/rtems/rtl/rtl-indirect-ptr.h
new file mode 100644
index 0000000000..81503a3b45
--- /dev/null
+++ b/cpukit/include/rtems/rtl/rtl-indirect-ptr.h
@@ -0,0 +1,235 @@
+/*
+ *  COPYRIGHT (c) 2012 Chris Johns <chrisj@rtems.org>
+ *
+ *  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.
+ */
+/**
+ * @file
+ *
+ * @ingroup rtems_rtl
+ *
+ * @brief RTEMS Run-Time Linker Indirect Pointer Management allows memory
+ *        compaction in the allocator. 
+ */
+
+#if !defined (_RTEMS_RTL_INDIRECT_PTR_H_)
+#define _RTEMS_RTL_INDIRECT_PTR_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#include <rtems/chain.h>
+
+/**
+ * The RTL Indirect pointer.
+ */
+struct rtems_rtl_ptr_s {
+  rtems_chain_node node;     /**< Indirect pointers are held on lists. */
+  void*            pointer;  /**< The actual pointer. */
+};
+
+typedef struct rtems_rtl_ptr_s rtems_rtl_ptr_t;
+
+/**
+ * The RTL Indirect size and pointer.
+ */
+struct rtems_rtl_sptr_s {
+  rtems_rtl_ptr_t  ptr;      /**< The indirect pointer. */
+  size_t           size;     /**< The size of the memory block. */
+};
+
+typedef struct rtems_rtl_sptr_s rtems_rtl_sptr_t;
+
+/**
+ * A chain of indirect pointers for users to chain in applications.
+ *
+ * @note The chain the pointer is on is internal to the allocator and cannot be
+ *       used by applications.
+ */
+struct rtems_rtl_ptr_chain_s {
+  rtems_chain_node node;  /**< Chain of indirect pointers. */
+  rtems_rtl_ptr_t  ptr;   /**< The indirect pointer. */
+};
+
+typedef struct rtems_rtl_ptr_chain_s rtems_rtl_ptr_chain_t;
+
+/**
+ * A chain of indirect sized pointers for users to chain in applications.
+ *
+ * @note The chain the pointer is on is internal to the allocator and cannot be
+ *       used by applications.
+ */
+struct rtems_rtl_sptr_chain_s {
+  rtems_chain_node node;  /**< Chain of indirect pointers. */
+  rtems_rtl_sptr_t  ptr;  /**< The indirect pointer. */
+};
+
+typedef struct rtems_rtl_sptr_chain_s rtems_rtl_sptr_chain_t;
+
+/**
+ * Get the pointer given an indirect handle.
+ *
+ * @param handle The handle the pointer is returned from.
+ * @return void* The pointer held in the handle.
+ */
+static inline void* rtems_rtl_ptr_get (rtems_rtl_ptr_t* handle)
+{
+  return handle->pointer;
+}
+
+/**
+ * Set the pointer given an indirect handle and the pointer.
+ *
+ * @param handle The handle the pointer is returned from.
+ * @param pointer The pointer to set in the handle.
+ */
+static inline void rtems_rtl_ptr_set (rtems_rtl_ptr_t* handle, void* pointer)
+{
+  handle->pointer = pointer;
+}
+
+/**
+ * Initialise the indirect handle.
+ *
+ * @param handle The handle to initialise.
+ */
+static inline void rtems_rtl_ptr_init (rtems_rtl_ptr_t* handle)
+{
+  rtems_chain_set_off_chain (&handle->node);
+  handle->pointer = NULL;
+}
+
+/**
+ * Is the indirect handle NULL ?
+ *
+ * @param handle The handle to test.
+ * @return bool True if the pointer is NULL.
+ */
+static inline bool rtems_rtl_ptr_null (rtems_rtl_ptr_t* handle)
+{
+  return handle->pointer == NULL;
+}
+
+/**
+ * Move the allocated pointer from one handle to another. The source handle is
+ * cleared and removed from the list of handles.
+ *
+ * @param src The source handle to move the pointer from.
+ * @param dst The destination handle to receive the pointer.
+ */
+static inline void rtems_rtl_ptr_move (rtems_rtl_ptr_t* dst, rtems_rtl_ptr_t* src)
+{
+  /*
+   * We do not know which chain the src handle resides on so insert the dst
+   * handle after the src handle then extract the src handle.
+   */
+  rtems_chain_insert_unprotected (&src->node, &dst->node);
+  rtems_chain_extract_unprotected (&src->node);
+  dst->pointer = src->pointer;
+  rtems_rtl_ptr_init (src);
+}
+
+/**
+ * Return the pointer as the type provided.
+ *
+ * @param _h The handle.
+ * @param _t The type.
+ */
+#define rtems_rtl_ptr_type_get(_h, _t) ((_t*) rtems_rtl_ptr_get (_h))
+
+/**
+ * Get the pointer given an indirect handle.
+ *
+ * @param handle The handle the pointer is returned from.
+ * @return void* The pointer held in the handle.
+ */
+static inline void* rtems_rtl_sptr_get (rtems_rtl_sptr_t* handle)
+{
+  return rtems_rtl_ptr_get (&handle->ptr);
+}
+
+/**
+ * Set the pointer given an indirect handle and the pointer.
+ *
+ * @param handle The handle the pointer is returned from.
+ * @param pointer The pointer to set in the handle.
+ */
+static inline void rtems_rtl_sptr_set (rtems_rtl_sptr_t* handle, void* pointer)
+{
+  rtems_rtl_ptr_set (&handle->ptr, pointer);
+}
+
+/**
+ * Initialise the indirect handle.
+ *
+ * @param handle The handle to initialise.
+ */
+static inline void rtems_rtl_sptr_init (rtems_rtl_sptr_t* handle)
+{
+  rtems_rtl_ptr_init (&handle->ptr);
+  handle->size = 0;
+}
+
+/**
+ * Is the indirect handle NULL ?
+ *
+ * @param handle The handle to test.
+ * @return bool True if the pointer is NULL.
+ */
+static inline bool rtems_rtl_sptr_null (rtems_rtl_sptr_t* handle)
+{
+  return rtems_rtl_ptr_null (&handle->ptr);
+}
+
+/**
+ * Move the allocated pointer from one handle to another. The source handle is
+ * cleared and removed from the list of handles.
+ *
+ * @param src The source handle to move the pointer from.
+ * @param dst The destination handle to receive the pointer.
+ */
+static inline void rtems_rtl_sptr_move (rtems_rtl_sptr_t* dst, rtems_rtl_sptr_t* src)
+{
+  rtems_rtl_ptr_move (&dst->ptr, &src->ptr);
+  dst->size = src->size;
+  src->size = 0;
+}
+
+/**
+ * Get the size.
+ *
+ * @param handle The handle to get the size from.
+ * @return size_t The size_t.
+ */
+static inline size_t rtems_rtl_sptr_get_size (rtems_rtl_sptr_t* handle)
+{
+  return handle->size;
+}
+
+/**
+ * Set the size.
+ *
+ * @param handle The handle to set the size.
+ * @param size The size to set..
+ */
+static inline void rtems_rtl_sptr_set_size (rtems_rtl_sptr_t* handle, size_t size)
+{
+  handle->size = size;
+}
+
+/**
+ * Return the pointer as the type provided.
+ *
+ * @param _h The handle.
+ * @param _t The type.
+ */
+#define rtems_rtl_sptr_type_get(_h, _t) ((_t*) rtems_rtl_sptr_get (_h))
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif