source: rtems/cpukit/score/cpu/powerpc/include/rtems/score/types.h @ 828049cb

5
Last change on this file since 828049cb was 2afb22b, checked in by Chris Johns <chrisj@…>, on 12/23/17 at 07:18:56

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.
  • Property mode set to 100644
File size: 1.5 KB
Line 
1/**
2 * @file
3 *
4 * @brief PowerPC CPU Type Definitions
5 *
6 * This include file contains type definitions pertaining to the PowerPC
7 * processor family.
8 */
9
10/*
11 *  Author:     Andrew Bray <andy@i-cubed.co.uk>
12 *
13 *  COPYRIGHT (c) 1995 by i-cubed ltd.
14 *
15 *  To anyone who acknowledges that this file is provided "AS IS"
16 *  without any express or implied warranty:
17 *      permission to use, copy, modify, and distribute this file
18 *      for any purpose is hereby granted without fee, provided that
19 *      the above copyright notice and this notice appears in all
20 *      copies, and that the name of i-cubed limited not be used in
21 *      advertising or publicity pertaining to distribution of the
22 *      software without specific, written prior permission.
23 *      i-cubed limited makes no representations about the suitability
24 *      of this software for any purpose.
25 *
26 *  Derived from c/src/exec/cpu/no_cpu/no_cputypes.h:
27 *
28 *  COPYRIGHT (c) 1989-1997.
29 *  On-Line Applications Research Corporation (OAR).
30 *
31 *  The license and distribution terms for this file may in
32 *  the file LICENSE in this distribution or at
33 *  http://www.rtems.org/license/LICENSE.
34 */
35
36#ifndef _RTEMS_SCORE_TYPES_H
37#define _RTEMS_SCORE_TYPES_H
38
39#include <rtems/score/basedefs.h>
40
41#ifndef ASM
42
43#ifdef __cplusplus
44extern "C" {
45#endif
46
47/*
48 *  This section defines the basic types for this processor.
49 */
50
51/** Type that can store a 32-bit integer or a pointer. */
52typedef uintptr_t CPU_Uint32ptr;
53
54typedef void ppc_isr;
55
56#ifdef __cplusplus
57}
58#endif
59
60#endif  /* !ASM */
61
62#endif
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