source: rtems/bsps/bfin/eZKit533/include/cplb.h @ 2afb22b

5
Last change on this file since 2afb22b was 2afb22b, checked in by Chris Johns <chrisj@…>, on Dec 23, 2017 at 7:18:56 AM

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 * @file
3 * @ingroup ezkit533_cplb
4 * @brief CPLB configurations.
5 */
6
7/*  cplb.h
8 *
9 *  Copyright (c) 2006 by Atos Automacao Industrial Ltda.
10 *             written by Alain Schaefer <alain.schaefer@easc.ch>
11 *
12 *  The license and distribution terms for this file may be
13 *  found in the file LICENSE in this distribution or at
14 *  http://www.rtems.org/license/LICENSE.
15 */
16#ifndef _CPLB_H
17#define _CPLB_H
18
19/**
20 * @defgroup ezkit533_cplb CPLB Configuration
21 * @ingroup bfin_ezkit533
22 * @brief CPLB Configuration
23 * @{
24 */
25
26/* CPLB configurations */
27#define CPLB_DEF_CACHE_WT       CPLB_L1_CHBL | CPLB_WT
28#define CPLB_DEF_CACHE_WB       CPLB_L1_CHBL
29#define CPLB_CACHE_ENABLED      CPLB_L1_CHBL | CPLB_DIRTY
30
31#define CPLB_DEF_CACHE          CPLB_L1_CHBL | CPLB_WT
32#define CPLB_ALL_ACCESS CPLB_SUPV_WR | CPLB_USER_RD | CPLB_USER_WR
33
34#define CPLB_I_PAGE_MGMT        CPLB_LOCK | CPLB_VALID
35#define CPLB_D_PAGE_MGMT        CPLB_LOCK | CPLB_ALL_ACCESS | CPLB_VALID
36
37#define CPLB_DNOCACHE           CPLB_ALL_ACCESS | CPLB_VALID
38#define CPLB_DDOCACHE           CPLB_DNOCACHE | CPLB_DEF_CACHE
39#define CPLB_INOCACHE           CPLB_USER_RD | CPLB_VALID
40#define CPLB_IDOCACHE           CPLB_INOCACHE | CPLB_L1_CHBL
41
42#define CPLB_DDOCACHE_WT        CPLB_DNOCACHE | CPLB_DEF_CACHE_WT
43#define CPLB_DDOCACHE_WB        CPLB_DNOCACHE | CPLB_DEF_CACHE_WB
44
45/** @} */
46
47#endif /* _CPLB_H */
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