source: rtems/bsps/arm/csb336/include/bsp.h @ a6e39d4a

5
Last change on this file since a6e39d4a 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 * @file
3 *
4 * @ingroup arm_csb336
5 *
6 * @brief Global BSP definitions.
7 */
8
9/*
10 *  BSP CSB336 header file
11 *
12 *  Copyright (c) 2004 Cogent Computer Systems
13 *  Written by Jay Monkman <jtm@lopingdog.com>
14 *
15 *  The license and distribution terms for this file may be
16 *  found in the file LICENSE in this distribution or at
17 *  http://www.rtems.org/license/LICENSE.
18*/
19#ifndef LIBBSP_ARM_CSB336_BSP_H
20#define LIBBSP_ARM_CSB336_BSP_H
21
22#include <bspopts.h>
23#include <bsp/default-initial-extension.h>
24
25#include <rtems.h>
26#include <mc9328mxl.h>
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
32/**
33 * @defgroup arm_csb336 CSB336 Support
34 *
35 * @ingroup bsp_arm
36 *
37 * @brief CSB336 support package.
38 *
39 * @{
40 */
41
42#define BSP_FEATURE_IRQ_EXTENSION
43
44/* What is the input clock freq in hertz? */
45#define BSP_OSC_FREQ  16000000    /* 16 MHz oscillator */
46#define BSP_XTAL_FREQ 32768       /* 32.768 KHz crystal */
47
48int get_perclk1_freq(void);
49
50/**
51 * @brief Network driver configuration
52 */
53extern struct rtems_bsdnet_ifconfig *config;
54
55/* Change these to match your board */
56int rtems_mc9328mxl_enet_attach(struct rtems_bsdnet_ifconfig *config,
57                                void *chip);
58#define RTEMS_BSP_NETWORK_DRIVER_NAME   "eth0"
59#define RTEMS_BSP_NETWORK_DRIVER_ATTACH rtems_mc9328mxl_enet_attach
60
61/** @} */
62
63#ifdef __cplusplus
64}
65#endif
66
67#endif /* _BSP_H */
68
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