source: rtems/bsps/arm/smdk2410/include/bsp.h @ 2afb22b

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: 1.5 KB
Line 
1/**
2 * @file
3 * @ingroup arm_smdk2410
4 * @brief Global BSP definitons.
5 */
6
7/*
8 *  Copyright (c) Canon Research France SA.]
9 *  Emmanuel Raguet, mailto:raguet@crf.canon.fr
10 *
11 *  The license and distribution terms for this file may be
12 *  found in the file LICENSE in this distribution or at
13 *  http://www.rtems.org/license/LICENSE.
14 */
15
16#ifndef LIBBSP_ARM_SMDK2410_BSP_H
17#define LIBBSP_ARM_SMDK2410_BSP_H
18
19#include <bspopts.h>
20#include <bsp/default-initial-extension.h>
21
22#include <rtems.h>
23#include <s3c24xx.h>
24
25#ifdef __cplusplus
26extern "C" {
27#endif
28
29#define BSP_FEATURE_IRQ_EXTENSION
30
31/**
32 * @brief functions to get the differents s3c2400 clks
33 * @{
34 */
35
36uint32_t get_FCLK(void);
37uint32_t get_HCLK(void);
38uint32_t get_PCLK(void);
39uint32_t get_UCLK(void);
40
41/** @} */
42
43/* What is the input clock freq in hertz? */
44/** @brief 12 MHz oscillator */
45#define BSP_OSC_FREQ  12000000
46/** @brief FCLK=133Mhz */
47#define M_MDIV 81
48#define M_PDIV 2
49#define M_SDIV 1
50/** @brief HCLK=FCLK/2, PCLK=FCLK/2 */
51#define M_CLKDIVN 2
52/** @brief enable refresh */
53#define REFEN   0x1
54/** @brief CBR(CAS before RAS)/auto refresh */
55#define TREFMD  0x0
56/** @brief 2 clk */
57#define Trp     0x0
58/** @brief 7 clk */
59#define Trc     0x3
60/** @brief 3 clk */
61#define Tchr    0x2
62
63/**
64 * @brief This BSP provides its own IDLE thread to override the RTEMS one.
65 *
66 *  So we prototype it and define the constant confdefs.h expects
67 *  to configure a BSP specific one.
68 */
69void *bsp_idle_thread(uintptr_t ignored);
70
71/** @} */
72
73#define BSP_IDLE_TASK_BODY bsp_idle_thread
74
75#ifdef __cplusplus
76}
77#endif
78
79#endif /* _BSP_H */
80
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