source: rtems/bsps/arm/lm3s69xx/include/bsp/syscon.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: 1001 bytes
Line 
1/**
2 * @file
3 *
4 * @ingroup lm3s69xx_syscon
5 *
6 * @brief Syscon support.
7 */
8
9/*
10 * Copyright © 2013 Eugeniy Meshcheryakov <eugen@debian.org>
11 *
12 * The license and distribution terms for this file may be
13 * found in the file LICENSE in this distribution or at
14 * http://www.rtems.org/license/LICENSE.
15 */
16#ifndef LIBBSP_ARM_LM3S69XX_SYSCON_H
17#define LIBBSP_ARM_LM3S69XX_SYSCON_H
18#include <stdbool.h>
19
20/**
21 * @defgroup lm3s69xx_syscon Syscon Support
22 *
23 * @ingroup arm_lm3s69xx
24 *
25 * @brief Syscon Support
26 */
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
32void lm3s69xx_syscon_enable_gpio_clock(unsigned int port, bool enable);
33void lm3s69xx_syscon_enable_uart_clock(unsigned int port, bool enable);
34void lm3s69xx_syscon_enable_ssi_clock(unsigned int port, bool enable);
35void lm3s69xx_syscon_enable_pwm_clock(bool enable);
36void lm3s69xx_syscon_set_pwmdiv(unsigned int div);
37void lm3s69xx_syscon_delay_3x_clocks(unsigned long x_count);
38
39#ifdef __cplusplus
40}
41#endif
42
43#endif /* LIBBSP_ARM_LM3S69XX_SYSCON_H */
Note: See TracBrowser for help on using the repository browser.