source: rtems/bsps/powerpc/virtex5/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: 2.8 KB
Line 
1/*  @file
2 *
3 *  This include file contains all GEN405 board IO definitions.
4 */
5
6/*
7 * derived from helas403/include/bsp.h:
8 *  Id: bsp.h,v 1.4 2001/06/18 17:01:48 joel Exp
9 *  Author:     Thomas Doerfler <td@imd.m.isar.de>
10 *              IMD Ingenieurbuero fuer Microcomputertechnik
11 *
12 *  COPYRIGHT (c) 1998 by IMD
13 *
14 *  Changes from IMD are covered by the original distributions terms.
15 *  This file has been derived from the papyrus BSP.
16 *
17 *  Author:     Andrew Bray <andy@i-cubed.co.uk>
18 *
19 *  COPYRIGHT (c) 1995 by i-cubed ltd.
20 *
21 *  To anyone who acknowledges that this file is provided "AS IS"
22 *  without any express or implied warranty:
23 *      permission to use, copy, modify, and distribute this file
24 *      for any purpose is hereby granted without fee, provided that
25 *      the above copyright notice and this notice appears in all
26 *      copies, and that the name of i-cubed limited not be used in
27 *      advertising or publicity pertaining to distribution of the
28 *      software without specific, written prior permission.
29 *      i-cubed limited makes no representations about the suitability
30 *      of this software for any purpose.
31 *
32 *  Derived from c/src/lib/libbsp/no_cpu/no_bsp/include/bsp.h
33 *
34 *  COPYRIGHT (c) 1989-1999.
35 *  On-Line Applications Research Corporation (OAR).
36 *
37 *  The license and distribution terms for this file may be
38 *  found in the file LICENSE in this distribution or at
39 *  http://www.rtems.org/license/LICENSE.
40 *
41 */
42
43#ifndef LIBBSP_POWERPC_VIRTEX5_BSP_H
44#define LIBBSP_POWERPC_VIRTEX5_BSP_H
45
46#include <bspopts.h>
47
48/*
49 *  confdefs.h overrides for this BSP:
50 *   - Interrupt stack space is not minimum if defined.
51 */
52#define BSP_INTERRUPT_STACK_SIZE  (16 * 1024)
53
54#ifdef ASM
55/* Definition of where to store registers in alignment handler */
56#define ALIGN_REGS 0x0140
57
58#else
59#include <rtems.h>
60#include <bsp/default-initial-extension.h>
61
62#ifdef __cplusplus
63extern "C" {
64#endif
65
66/* miscellaneous stuff assumed to exist */
67extern bool bsp_timer_internal_clock;   /* TRUE, when timer runs with CPU clk */
68
69/*
70 * Bus Frequency
71 */
72extern unsigned int BSP_bus_frequency;
73/*
74 * Processor Clock Frequency
75 */
76extern unsigned int BSP_processor_frequency;
77/*
78 * Time base divisior (how many tick for 1 second).
79 */
80extern unsigned int BSP_time_base_divisor;
81
82/*
83 * Macro used by shared MPC6xx timer driver
84 */
85#define BSP_Convert_decrementer( _value ) \
86  ((unsigned long long) ((((unsigned long long)BSP_time_base_divisor) * 1000000ULL) /((unsigned long long) BSP_bus_frequency)) * ((unsigned long long) (_value)))
87
88/*
89 *  Interfaces to required Clock Driver support methods
90 */
91int BSP_disconnect_clock_handler(void);
92int BSP_connect_clock_handler(void);
93
94/*
95 * Prototypes for BSP methods shared across file boundaries
96 */
97void zero_bss(void);
98
99#endif /* ASM */
100
101void BSP_ask_for_reset(void);
102
103#ifdef __cplusplus
104}
105#endif
106
107#endif
Note: See TracBrowser for help on using the repository browser.