source: rtems/bsps/powerpc/psim/include/bsp.h @ 54d87f2

5
Last change on this file since 54d87f2 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: 2.2 KB
Line 
1/*  bsp.h
2 *
3 *  This include file contains all Papyrus board IO definitions.
4 *
5 *  Author:     Andrew Bray <andy@i-cubed.co.uk>
6 *
7 *  COPYRIGHT (c) 1995 by i-cubed ltd.
8 *
9 *  To anyone who acknowledges that this file is provided "AS IS"
10 *  without any express or implied warranty:
11 *      permission to use, copy, modify, and distribute this file
12 *      for any purpose is hereby granted without fee, provided that
13 *      the above copyright notice and this notice appears in all
14 *      copies, and that the name of i-cubed limited not be used in
15 *      advertising or publicity pertaining to distribution of the
16 *      software without specific, written prior permission.
17 *      i-cubed limited makes no representations about the suitability
18 *      of this software for any purpose.
19 *
20 *  Derived from c/src/lib/libbsp/no_cpu/no_bsp/include/bsp.h
21 *
22 *  COPYRIGHT (c) 1989-1999.
23 *  On-Line Applications Research Corporation (OAR).
24 *
25 *  The license and distribution terms for this file may be
26 *  found in the file LICENSE in this distribution or at
27 *  http://www.rtems.org/license/LICENSE.
28 */
29
30#ifndef LIBBSP_POWERPC_PSIM_BSP_H
31#define LIBBSP_POWERPC_PSIM_BSP_H
32
33#include <bspopts.h>
34
35#ifdef ASM
36/* Definition of where to store registers in alignment handler */
37#define ALIGN_REGS 0x0140
38
39#else
40#include <rtems.h>
41#include <libcpu/io.h>
42#include <bsp/vectors.h>
43#include <bsp/default-initial-extension.h>
44
45#ifdef __cplusplus
46extern "C" {
47#endif
48
49/* Constants */
50
51/*
52 *  Information placed in the linkcmds file.
53 */
54
55extern int   end;        /* last address in the program */
56extern int   RAM_END;
57
58extern uint32_t   BSP_mem_size;
59
60#define BSP_Convert_decrementer( _value ) ( (unsigned long long) _value )
61
62/* macros */
63#define Processor_Synchronize() \
64  __asm__ (" eieio ")
65
66/*
67 *  Network configuration
68 */
69struct rtems_bsdnet_ifconfig;
70
71int rtems_ifsim_attach(struct rtems_bsdnet_ifconfig *ifcfg, int attaching);
72
73#define RTEMS_BSP_NETWORK_DRIVER_NAME   "ifsim1"
74#define RTEMS_BSP_NETWORK_DRIVER_ATTACH rtems_ifsim_attach
75
76/*
77 *  Interfaces to required Clock Driver support methods
78 */
79int BSP_disconnect_clock_handler(void);
80int BSP_connect_clock_handler(void);
81
82#ifdef __cplusplus
83}
84#endif
85
86#endif /* ASM */
87
88#define BSP_HAS_NO_VME
89
90#endif
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