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, 170 insertions, 0 deletions

diff --git a/cpukit/include/rtems/rtems/support.h b/cpukit/include/rtems/rtems/support.h
new file mode 100644
index 0000000000..4ebb50cbdf
--- /dev/null
+++ b/cpukit/include/rtems/rtems/support.h
@@ -0,0 +1,170 @@
+/**
+ * @file
+ *
+ * @defgroup ClassicRTEMSWorkspace Workspace
+ *
+ * @ingroup ClassicRTEMS
+ * @brief Classic API support.
+ */
+
+/* COPYRIGHT (c) 1989-2008.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * 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 _RTEMS_RTEMS_SUPPORT_H
+#define _RTEMS_RTEMS_SUPPORT_H
+
+#include <rtems/rtems/types.h>
+#include <rtems/config.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @addtogroup ClassicRTEMS
+ */
+/**@{**/
+
+/**
+ * @brief Returns the number of micro seconds for the milli seconds value @a _ms.
+ */
+#define RTEMS_MILLISECONDS_TO_MICROSECONDS(_ms) ((_ms) * 1000UL)
+
+/**
+ * @brief Returns the number of ticks for the milli seconds value @a _ms.
+ */
+#define RTEMS_MILLISECONDS_TO_TICKS(_ms) \
+       (RTEMS_MILLISECONDS_TO_MICROSECONDS(_ms) / \
+          rtems_configuration_get_microseconds_per_tick())
+
+/**
+ * @brief Returns the number of ticks for the micro seconds value @a _us.
+ */
+#define RTEMS_MICROSECONDS_TO_TICKS(_us) \
+       ((_us) / rtems_configuration_get_microseconds_per_tick())
+
+/**
+ * @brief Returns @c true if the name is valid, and @c false otherwise.
+ */
+RTEMS_INLINE_ROUTINE bool rtems_is_name_valid (
+  rtems_name name
+)
+{
+  return ( name != 0 );
+}
+
+/**
+ * @brief Breaks the object name into the four component characters @a c1,
+ * @a c2, @a c3, and @a c4.
+ */
+RTEMS_INLINE_ROUTINE void rtems_name_to_characters(
+  rtems_name    name,
+  char         *c1,
+  char         *c2,
+  char         *c3,
+  char         *c4
+)
+{
+  *c1 = (char) ((name >> 24) & 0xff);
+  *c2 = (char) ((name >> 16) & 0xff);
+  *c3 = (char) ((name >> 8) & 0xff);
+  *c4 = (char) ( name & 0xff);
+}
+
+/** @} */
+
+/**
+ * @defgroup ClassicRTEMSWorkspace Workspace
+ *
+ * @ingroup ClassicRTEMS
+ *
+ * Workspace definitions.
+ */
+/**@{**/
+
+/**
+ * @brief Gets Workspace Information
+ *
+ * Returns information about the heap that is used as the RTEMS Executive
+ * Workspace in @a the_info.
+ *
+ * Returns @c true if successful, and @a false otherwise.
+ */
+bool rtems_workspace_get_information(
+  Heap_Information_block  *the_info
+);
+
+/**
+ * @brief Allocates Memory from the Workspace
+ *
+ * A number of @a bytes bytes will be allocated from the RTEMS Executive
+ * Workspace and returned in @a pointer.
+ *
+ * Returns @c true if successful, and @a false otherwise.
+ */
+bool rtems_workspace_allocate(
+  size_t   bytes,
+  void   **pointer
+);
+
+/**
+ * @brief Frees Memory Allocated from the Workspace
+ *
+ * This frees the memory indicated by @a pointer that was allocated from the
+ * RTEMS Executive Workspace.
+ *
+ * Returns @c true if successful, and @a false otherwise.
+ */
+bool rtems_workspace_free(
+  void *pointer
+);
+
+/**
+ * @brief Greedy allocate that empties the workspace.
+ *
+ * Afterwards the heap has at most @a block_count allocatable blocks of sizes
+ * specified by @a block_sizes.  The @a block_sizes must point to an array with
+ * @a block_count members.  All other blocks are used.
+ *
+ * @see rtems_workspace_greedy_free().
+ */
+void *rtems_workspace_greedy_allocate(
+  const uintptr_t *block_sizes,
+  size_t block_count
+);
+
+/**
+ * @brief Greedy allocate all blocks except the largest free block.
+ *
+ * Afterwards the heap has at most one allocatable block.  This block is the
+ * largest free block if it exists.  The allocatable size of this block is
+ * stored in @a allocatable_size.  All other blocks are used.
+ *
+ * @see rtems_workspace_greedy_free().
+ */
+void *rtems_workspace_greedy_allocate_all_except_largest(
+  uintptr_t *allocatable_size
+);
+
+/**
+ * @brief Frees space of a greedy allocation.
+ *
+ * The @a opaque argument must be the return value of
+ * rtems_workspace_greedy_allocate() or
+ * rtems_workspace_greedy_allocate_all_except_largest().
+ */
+void rtems_workspace_greedy_free( void *opaque );
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */