source: rtems/bsps/arm/raspberrypi/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 * @file
3 *
4 * @ingroup arm_raspberrypi
5 *
6 * @brief Global BSP definitions.
7 */
8
9/*
10 * Copyright (c) 2015 Yang Qiao
11 * Copyright (c) 2013 Alan Cudmore
12 *
13 *  The license and distribution terms for this file may be
14 *  found in the file LICENSE in this distribution or at
15 *
16 *  http://www.rtems.org/license/LICENSE
17 *
18 */
19
20#ifndef LIBBSP_ARM_RASPBERRYPI_BSP_H
21#define LIBBSP_ARM_RASPBERRYPI_BSP_H
22
23#include <bspopts.h>
24#include <bsp/default-initial-extension.h>
25
26#include <rtems.h>
27#include <bsp/raspberrypi.h>
28
29#ifdef __cplusplus
30extern "C" {
31#endif /* __cplusplus */
32
33#define BSP_FEATURE_IRQ_EXTENSION
34
35#define RPI_L2_CACHE_ENABLE 1
36
37#define BSP_GPIO_PIN_COUNT 32
38#define BSP_GPIO_PINS_PER_BANK 32
39#define BSP_GPIO_PINS_PER_SELECT_BANK 10
40
41#define BSP_CONSOLE_UART0   0
42#define BSP_CONSOLE_FB      1
43
44void rpi_init_cmdline(void);
45const char *rpi_cmdline_get_cached(void);
46const char *rpi_cmdline_get_raw(void);
47const char *rpi_cmdline_get_arg(const char* arg);
48
49void  rpi_video_init(void);
50void  rpi_fb_outch  (char);
51int rpi_video_is_initialized(void);
52
53void rpi_ipi_initialize(void);
54void rpi_start_rtems_on_secondary_processor(void);
55
56#ifdef __cplusplus
57}
58#endif /* __cplusplus */
59
60#endif /* LIBBSP_ARM_RASPBERRYPI_BSP_H */
61
62/**
63 * @defgroup arm_raspberrypi Raspberry Pi Support
64 *
65 * @ingroup bsp_arm
66 *
67 * @brief Raspberry Pi support package
68 *
69 */
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