source: rtems/bsps/sh/shsim/include/bsp.h @ 2afb22b

5
Last change on this file since 2afb22b 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: 1.3 KB
Line 
1/*
2 *  SH-gdb simulator BSP
3 *
4 *  This include file contains all board IO definitions.
5 */
6
7/*
8 *  Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
9 *
10 *  COPYRIGHT (c) 2001, Ralf Corsepius, Ulm, Germany
11 *
12 *  This program is distributed in the hope that it will be useful,
13 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
14 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15 *
16 *  COPYRIGHT (c) 2001.
17 *  On-Line Applications Research Corporation (OAR).
18 *
19 *  The license and distribution terms for this file may be
20 *  found in the file LICENSE in this distribution or at
21 *  http://www.rtems.org/license/LICENSE.
22 */
23
24#ifndef LIBBSP_SH_SHSIM_BSP_H
25#define LIBBSP_SH_SHSIM_BSP_H
26
27#ifndef ASM
28
29#include <rtems.h>
30
31#include <bspopts.h>
32#include <bsp/default-initial-extension.h>
33
34/*
35 * FIXME: One of these would be enough.
36 */
37#include <rtems/devnull.h>
38
39#ifdef __cplusplus
40extern "C" {
41#endif
42
43/* Constants */
44
45void *clock_driver_sim_idle_body(uintptr_t);
46#define BSP_IDLE_TASK_BODY clock_driver_sim_idle_body
47
48/*
49 * Defined in the linker script 'linkcmds'
50 */
51extern void *CPU_Interrupt_stack_low;
52extern void *CPU_Interrupt_stack_high;
53
54/*
55 * BSP methods that cross file boundaries.
56 */
57int _sys_exit (int n);
58void bsp_hw_init(void);
59
60#ifdef __cplusplus
61}
62#endif
63
64#endif /* !ASM */
65#endif
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