source: rtems/cpukit/include/rtems/vmeintr.h @ 878487b0

5
Last change on this file since 878487b0 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: 1.1 KB
Line 
1/**
2 * @file
3 *
4 * @brief VMEbus Interface Library
5 *
6 * This file is the specification for the VMEbus interface library
7 * which should be provided by all BSPs for VMEbus Single Board
8 * Computers but currently only a few do so.
9 */
10
11/*
12 *  COPYRIGHT (c) 1989-1999.
13 *  On-Line Applications Research Corporation (OAR).
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
20#ifndef _RTEMS_VMEINTR_H
21#define _RTEMS_VMEINTR_H
22
23#ifdef __cplusplus
24extern "C" {
25#endif
26
27/*
28 *  This defines the mask which is used to determine which
29 *  interrupt levels are affected by a call to this package.
30 *  The LSB corresponds to VME interrupt 0 and the MSB
31 *  to VME interrupt 7.
32 *
33 */
34
35typedef uint8_t   VME_interrupt_Mask;
36
37/*
38 *  VME_interrupt_Disable
39 *
40 */
41
42void VME_interrupt_Disable (
43  VME_interrupt_Mask                mask                        /* IN  */
44);
45
46/*
47 *  VME_interrupt_Disable
48 *
49 */
50
51void VME_interrupt_Enable (
52  VME_interrupt_Mask                mask                        /* IN  */
53);
54
55#ifdef __cplusplus
56}
57#endif
58
59#endif /* end of include file */
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