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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 /cpukit/libfs/src/pipe | |
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 'cpukit/libfs/src/pipe')
-rw-r--r-- | cpukit/libfs/src/pipe/pipe.h | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/cpukit/libfs/src/pipe/pipe.h b/cpukit/libfs/src/pipe/pipe.h deleted file mode 100644 index 7c6566ad50..0000000000 --- a/cpukit/libfs/src/pipe/pipe.h +++ /dev/null @@ -1,133 +0,0 @@ -/** - * @file - * - * @brief POSIX FIFO/pipe File System Support - * - * This include file defines the interface to the POSIX FIFO/pipe file system - * support. - */ - -/* - * Author: Wei Shen <cquark@gmail.com> - * - * 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. - */ - -#ifndef _RTEMS_PIPE_H -#define _RTEMS_PIPE_H - -#include <rtems/libio.h> - -/** - * @defgroup FIFO_PIPE FIFO/Pipe File System Support - * - * @ingroup FileSystemTypesAndMount - * - * @brief Interface to the POSIX FIFO/Pipe File System - */ -/**@{*/ - -#ifdef __cplusplus -extern "C" { -#endif - -/* Control block to manage each pipe */ -typedef struct pipe_control { - char *Buffer; - unsigned int Size; - unsigned int Start; - unsigned int Length; - unsigned int Readers; - unsigned int Writers; - unsigned int waitingReaders; - unsigned int waitingWriters; - unsigned int readerCounter; /* incremental counters */ - unsigned int writerCounter; /* for differentiation of successive opens */ - rtems_id Semaphore; - rtems_id readBarrier; /* wait queues */ - rtems_id writeBarrier; -#if 0 - boolean Anonymous; /* anonymous pipe or FIFO */ -#endif -} pipe_control_t; - -/** - * @brief Create an anonymous pipe. - * - * Called by pipe() to create an anonymous pipe. - */ -extern int pipe_create( - int filsdes[2] -); - -/** - * @brief Release a pipe. - * - * Interface to file system close. - * - * *pipep points to pipe control structure. When the last user releases pipe, - * it will be set to NULL. - */ -extern void pipe_release( - pipe_control_t **pipep, - rtems_libio_t *iop -); - -/** - * @brief File system open. - * Interface to file system open. - * - * *pipep points to pipe control structure. If called with *pipep = NULL, - * fifo_open will try allocating and initializing a control structure. If the - * call succeeds, *pipep will be set to address of new control structure. - */ -extern int fifo_open( - pipe_control_t **pipep, - rtems_libio_t *iop -); - -/** - * @brief File system read. - * - * Interface to file system read. - */ -extern ssize_t pipe_read( - pipe_control_t *pipe, - void *buffer, - size_t count, - rtems_libio_t *iop -); - -/** - * @brief File system write. - * - * Interface to file system write. - */ -extern ssize_t pipe_write( - pipe_control_t *pipe, - const void *buffer, - size_t count, - rtems_libio_t *iop -); - -/** - * @brief File system Input/Output control. - * - * Interface to file system ioctl. - */ -extern int pipe_ioctl( - pipe_control_t *pipe, - ioctl_command_t cmd, - void *buffer, - rtems_libio_t *iop -); - -/** @} */ - -#ifdef __cplusplus -} -#endif - -#endif |