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author | Chris Johns <chrisj@rtems.org> | 2017-12-23 18:18:56 +1100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-01-25 08:45:26 +0100 |
commit | 2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 (patch) | |
tree | 44759efe9374f13200a97e96d91bd9a2b7e5ce2a /bsps/sh/gensh4/include/bsp.h | |
parent | MAINTAINERS: Add myself to Write After Approval. (diff) | |
download | rtems-2afb22b7e1ebcbe40373ff7e0efae7d207c655a9.tar.bz2 |
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.
Diffstat (limited to 'bsps/sh/gensh4/include/bsp.h')
-rw-r--r-- | bsps/sh/gensh4/include/bsp.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/bsps/sh/gensh4/include/bsp.h b/bsps/sh/gensh4/include/bsp.h new file mode 100644 index 0000000000..b70c2ffdac --- /dev/null +++ b/bsps/sh/gensh4/include/bsp.h @@ -0,0 +1,92 @@ +/* + * generic sh4 BSP + * + * This include file contains all board IO definitions. + */ + +/* + * Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia + * Author: Victor V. Vengerov <vvv@oktet.ru> + * + * Based on work: + * Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de) + * + * COPYRIGHT (c) 1997-1998, FAW Ulm, Germany + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * + * COPYRIGHT (c) 1998-2001. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + * + * Minor adaptations for sh2 by: + * John M. Mills (jmills@tga.com) + * TGA Technologies, Inc. + * 100 Pinnacle Way, Suite 140 + * Norcross, GA 30071 U.S.A. + * + * This modified file may be copied and distributed in accordance + * the above-referenced license. It is provided for critique and + * developmental purposes without any warranty nor representation + * by the authors or by TGA Technologies. + */ + +#ifndef LIBBSP_SH_GENSH4_BSP_H +#define LIBBSP_SH_GENSH4_BSP_H + +#include <rtems.h> +#include <bspopts.h> +#include <bsp/default-initial-extension.h> + +#include "rtems/score/sh7750_regs.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* Constants */ + +/* + * Defined in the linker script 'linkcmds' + */ + +extern void *CPU_Interrupt_stack_low; +extern void *CPU_Interrupt_stack_high; + +/* + * Defined in start.S + */ +extern uint32_t boot_mode; +#define SH4_BOOT_MODE_FLASH 0 +#define SH4_BOOT_MODE_IPL 1 + +/* + * Device Driver Table Entries + */ + +/* + * We redefine CONSOLE_DRIVER_TABLE_ENTRY to redirect /dev/console + */ +#undef CONSOLE_DRIVER_TABLE_ENTRY +#define CONSOLE_DRIVER_TABLE_ENTRY \ + { console_initialize, console_open, console_close, \ + console_read, console_write, console_control } + +/* + * BSP methods that cross file boundaries. + */ +void bsp_hw_init(void); +void early_hw_init(void); +void bsp_cache_on(void); + +#ifdef __cplusplus +} +#endif + +#endif |