source: rtems/bsps/powerpc/include/mpc8xx/console.h @ d8de6b9

5
Last change on this file since d8de6b9 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: 828 bytes
Line 
1#ifndef _MPC8XX_CONSOLE_H
2#define _MPC8XX_CONSOLE_H
3
4#include <rtems/libio.h>
5
6void m8xx_uart_initialize(void);
7void m8xx_uart_interrupts_initialize(void);
8void m8xx_uart_scc_initialize (int minor);
9void m8xx_uart_smc_initialize (int minor);
10
11/* Termios callbacks */
12int m8xx_uart_pollRead(int minor);
13ssize_t m8xx_uart_pollWrite(int minor, const char* buf, size_t len);
14ssize_t m8xx_uart_write(int minor, const char *buf, size_t len);
15int m8xx_uart_setAttributes(int, const struct termios* t);
16
17
18#ifdef mpc860
19#define NUM_PORTS 6                /* number of serial ports for mpc860 */
20#else
21#define NUM_PORTS 4                /* number of serial ports for mpc821 */
22#endif
23
24#define SMC1_MINOR    0
25#define SMC2_MINOR    1
26#define SCC1_MINOR    2
27#define SCC2_MINOR    3
28#define SCC3_MINOR    4
29#define SCC4_MINOR    5
30
31
32#endif
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