source: rtems/bsps/lm32/lm32_evr/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: 1.9 KB
Line 
1/**
2 * @file
3 *
4 * @ingroup lm32_evr
5 *
6 * @brief Global BSP definitions.
7 */
8
9/*
10 *  COPYRIGHT (c) 1989-1999.
11 *  On-Line Applications Research Corporation (OAR).
12 *
13 *  The license and distribution terms for this file may be
14 *  found in the file LICENSE in this distribution or at
15 *  http://www.rtems.org/license/LICENSE.
16 *
17 *  Jukka Pietarinen <jukka.pietarinen@mrf.fi>, 2008,
18 *  Micro-Research Finland Oy
19 */
20
21#ifndef LIBBSP_LM32_LM32_EVR_BSP_H
22#define LIBBSP_LM32_LM32_EVR_BSP_H
23
24#include <stdint.h>
25#include <bspopts.h>
26#include <bsp/default-initial-extension.h>
27
28#include <rtems.h>
29
30/**
31 * @defgroup lm32_evr EVR Support
32 *
33 * @ingroup bsp_lm32
34 *
35 * @brief EVR support package.
36 */
37
38#ifdef __cplusplus
39extern "C" {
40#endif
41
42#define BSP_DIRTY_MEMORY 1
43
44  /*
45   * lm32 requires certain aligment of mbuf because unaligned uint32_t
46   * accesses are not handled properly.
47   */
48
49#define CPU_U32_FIX
50
51#if defined(RTEMS_NETWORKING)
52struct rtems_bsdnet_ifconfig;
53
54extern int rtems_tsmac_driver_attach(struct rtems_bsdnet_ifconfig *config,
55                                     int attaching);
56
57#define RTEMS_BSP_NETWORK_DRIVER_NAME "TSMAC0"
58#define RTEMS_BSP_NETWORK_DRIVER_ATTACH rtems_tsmac_driver_attach
59
60  /*
61   * Due to a hardware design error (RJ45 connector with 10baseT magnetics)
62   * we are forced to use 10baseT mode.
63   */
64
65#define TSMAC_FORCE_10BASET
66#endif
67
68/* functions */
69rtems_isr_entry set_vector(                     /* returns old vector */
70  rtems_isr_entry     handler,                  /* isr routine        */
71  rtems_vector_number vector,                   /* vector number      */
72  int                 type                      /* RTEMS or RAW intr  */
73);
74
75/*
76 * Prototypes for BSP methods that cross file boundaries
77 */
78void BSP_uart_polled_write(char ch);
79int BSP_uart_polled_read( void );
80char BSP_uart_is_character_ready(char *ch);
81
82#ifdef __cplusplus
83}
84#endif
85
86#endif
87/* end of include file */
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