source: rtems/bsps/powerpc/mpc55xxevb/include/bsp.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: 2.4 KB
Line 
1/**
2 * @file
3 *
4 * @ingroup mpc55xx
5 *
6 * @brief Global BSP variables and functions
7 */
8
9/*
10 * Copyright (c) 2008-2012 embedded brains GmbH.  All rights reserved.
11 *
12 *  embedded brains GmbH
13 *  Obere Lagerstr. 30
14 *  82178 Puchheim
15 *  Germany
16 *  <rtems@embedded-brains.de>
17 *
18 * The license and distribution terms for this file may be
19 * found in the file LICENSE in this distribution or at
20 * http://www.rtems.org/license/LICENSE.
21 */
22
23#ifndef LIBBSP_POWERPC_MPC55XXEVB_BSP_H
24#define LIBBSP_POWERPC_MPC55XXEVB_BSP_H
25
26#include <bspopts.h>
27
28#define BSP_INTERRUPT_STACK_AT_WORK_AREA_BEGIN
29
30#define BSP_FEATURE_IRQ_EXTENSION
31
32#define MPC55XX_PERIPHERAL_CLOCK \
33  (MPC55XX_SYSTEM_CLOCK / MPC55XX_SYSTEM_CLOCK_DIVIDER)
34
35#ifndef ASM
36
37#include <rtems.h>
38
39#include <libcpu/powerpc-utility.h>
40
41#include <bsp/tictac.h>
42#include <bsp/linker-symbols.h>
43#include <bsp/default-initial-extension.h>
44
45#ifdef __cplusplus
46extern "C" {
47#endif /* __cplusplus */
48
49/** @brief System clock frequency */
50extern unsigned int bsp_clock_speed;
51
52/** @brief Time base clicks per micro second */
53extern uint32_t bsp_clicks_per_usec;
54
55/** @brief Convert Decrementer ticks to microseconds */
56#define BSP_Convert_decrementer( _value ) \
57  (((unsigned long long) (_value)) / ((unsigned long long)bsp_clicks_per_usec))
58
59rtems_status_code mpc55xx_sd_card_init( bool mount);
60
61/* Network driver configuration */
62
63struct rtems_bsdnet_ifconfig;
64
65int smsc9218i_attach_detach(
66  struct rtems_bsdnet_ifconfig *config,
67  int attaching
68);
69
70#define RTEMS_BSP_NETWORK_DRIVER_ATTACH smsc9218i_attach_detach
71
72#define RTEMS_BSP_NETWORK_DRIVER_NAME "eth0"
73
74rtems_status_code bsp_register_i2c(void);
75
76void bsp_restart(void *addr);
77
78void *bsp_idle_thread(uintptr_t arg);
79
80#define BSP_IDLE_TASK_BODY bsp_idle_thread
81
82LINKER_SYMBOL(bsp_section_dsram_begin)
83LINKER_SYMBOL(bsp_section_dsram_end)
84LINKER_SYMBOL(bsp_section_dsram_size)
85LINKER_SYMBOL(bsp_section_dsram_load_begin)
86LINKER_SYMBOL(bsp_section_dsram_load_end)
87
88#define BSP_DSRAM_SECTION __attribute__((section(".bsp_dsram")))
89
90LINKER_SYMBOL(bsp_section_sysram_begin)
91LINKER_SYMBOL(bsp_section_sysram_end)
92LINKER_SYMBOL(bsp_section_sysram_size)
93LINKER_SYMBOL(bsp_section_sysram_load_begin)
94LINKER_SYMBOL(bsp_section_sysram_load_end)
95
96#define BSP_SYSRAM_SECTION __attribute__((section(".bsp_sysram")))
97
98#ifdef __cplusplus
99}
100#endif /* __cplusplus */
101
102#endif /* ASM */
103
104#endif /* LIBBSP_POWERPC_MPC55XXEVB_BSP_H */
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