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, 78 insertions, 0 deletions

diff --git a/cpukit/include/drvmgr/drvmgr_list.h b/cpukit/include/drvmgr/drvmgr_list.h
new file mode 100644
index 0000000000..76028fb5bd
--- /dev/null
+++ b/cpukit/include/drvmgr/drvmgr_list.h
@@ -0,0 +1,78 @@
+/* Linked list help functions used by driver manager.
+ *
+ * COPYRIGHT (c) 2009 Cobham Gaisler AB.
+ *
+ * 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.
+ */
+
+/*
+ * Help functions for the Driver Manager. Implements a singly linked list
+ * with head and tail pointers for fast insertions/deletions to head and
+ * tail in list.
+ */
+
+#ifndef _DRVIVER_MANAGER_LIST_H_
+#define _DRVIVER_MANAGER_LIST_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*! List description, Singly link list with head and tail pointers. */
+struct drvmgr_list {
+	void	*head;	/*!< First entry in queue */
+	void	*tail;	/*!< Last entry in queue */
+	int	ofs;	/*!< Offset into head and tail to find next field */
+};
+
+/* Static initialization of list */
+#define LIST_INITIALIZER(type, field) {NULL, NULL, offsetof(type, field)}
+
+/* Return the first element in list */
+#define LIST_HEAD(list, type) ((type *)(list)->head)
+
+/* Return the last element in list */
+#define LIST_TAIL(list, type) ((type *)(list)->tail)
+
+/* Get the next pointer of an entry */
+#define LIST_FIELD(list, entry) (*(void **)((char *)(entry) + (list)->ofs))
+
+/* Return the next emlement in list */
+#define LIST_NEXT(list, entry, type) ((type *)(LIST_FIELD(list, entry)))
+
+/* Iterate through all entries in list */
+#define LIST_FOR_EACH(list, entry, type) \
+	for (entry = LIST_HEAD(list, type); \
+	     entry; \
+	     entry = LIST_NEXT(list, entry, type))
+
+/*! Initialize a list during runtime
+ *
+ * \param list    The list to initialize
+ * \param offset  The number of bytes into the entry structure the next pointer
+ *                is found
+ */
+extern void drvmgr_list_init(struct drvmgr_list *list, int offset);
+
+/*! Clear list */
+extern void drvmgr_list_empty(struct drvmgr_list *list);
+
+/*! Add entry to front of list */
+extern void drvmgr_list_add_head(struct drvmgr_list *list, void *entry);
+
+/*! Add entry to end of list */
+extern void drvmgr_list_add_tail(struct drvmgr_list *list, void *entry);
+
+/*! Remove entry from front of list */
+extern void drvmgr_list_remove_head(struct drvmgr_list *list);
+
+/*! Remove entry from anywhere in list */
+extern void drvmgr_list_remove(struct drvmgr_list *list, void *entry);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif