mirror of
https://gitlab.rtems.org/rtems/rtos/rtems.git
synced 2026-08-30 04:18:29 +08:00
Ralf Corsepius
863fb4f1a9
* aclocal/canonicalize-tools.m4, aclocal/check-itron.m4, aclocal/check-multiprocessing.m4, aclocal/check-newlib.m4, aclocal/check-posix.m4, aclocal/check-rtems-debug.m4, aclocal/check-tool.m4, aclocal/enable-bare.m4, aclocal/enable-inlines.m4, aclocal/enable-itron.m4, aclocal/enable-multiprocessing.m4, aclocal/enable-networking.m4, aclocal/enable-posix.m4, aclocal/enable-rtems-debug.m4, aclocal/env-rtemscpu.m4, aclocal/gcc-isystem.m4, aclocal/gcc-pipe.m4, aclocal/multi.m4, aclocal/multilib.m4, aclocal/prog-cc.m4, aclocal/rtems-top.m4, aclocal/sysv-ipc.m4: Fix underquoting to silence automake-1.8.
126 lines
3.3 KiB
Plaintext
126 lines
3.3 KiB
Plaintext
dnl
|
|
dnl $Id$
|
|
dnl
|
|
dnl Check for System V IPC calls used by Unix simulators
|
|
dnl
|
|
dnl 98/07/17 Dario Alcocer alcocer@netcom.com
|
|
dnl Ralf Corsepius corsepiu@faw.uni-ulm.de
|
|
dnl
|
|
dnl Note: $host_os should probably *not* ever be used here to
|
|
dnl determine if host supports System V IPC calls, since some
|
|
dnl (e.g. FreeBSD 2.x) are configured by default to include only
|
|
dnl a subset of the System V IPC calls. Therefore, to make sure
|
|
dnl all of the required calls are found, test for each call explicitly.
|
|
dnl
|
|
dnl All of the calls use IPC_PRIVATE, so tests will not unintentionally
|
|
dnl modify any existing key sets. See the man pages for semget, shmget,
|
|
dnl msgget, semctl, shmctl and msgctl for details.
|
|
|
|
AC_DEFUN([RTEMS_UNION_SEMUN],
|
|
[
|
|
AC_CACHE_CHECK([whether $host defines union semun],
|
|
rtems_cv_HAS_UNION_SEMUN,
|
|
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
|
|
#include <sys/types.h>
|
|
#include <sys/ipc.h>
|
|
#include <sys/sem.h>]], [[union semun arg ;]])],[rtems_cv_HAS_UNION_SEMUN="yes"],[rtems_cv_HAS_UNION_SEMUN="no"])
|
|
])
|
|
if test "$rtems_cv_HAS_UNION_SEMUN" = "yes"; then
|
|
AC_DEFINE(HAS_UNION_SEMUN,[1],[if having union semum])
|
|
fi
|
|
])
|
|
|
|
AC_DEFUN([RTEMS_SYSV_SEM],
|
|
[AC_REQUIRE([AC_PROG_CC])
|
|
AC_CACHE_CHECK(whether $host supports System V semaphores,
|
|
rtems_cv_sysv_sem,
|
|
[
|
|
AC_RUN_IFELSE([AC_LANG_SOURCE([[
|
|
#include <sys/types.h>
|
|
#include <sys/ipc.h>
|
|
#include <sys/sem.h>
|
|
#if !HAS_UNION_SEMUN
|
|
union semun {
|
|
int val;
|
|
struct semid_ds *buf;
|
|
ushort *array;
|
|
} ;
|
|
#endif
|
|
int main () {
|
|
union semun arg ;
|
|
|
|
int id=semget(IPC_PRIVATE,1,IPC_CREAT|0400);
|
|
if (id == -1)
|
|
exit(1);
|
|
arg.val = 0; /* avoid implicit type cast to union */
|
|
if (semctl(id, 0, IPC_RMID, arg) == -1)
|
|
exit(1);
|
|
exit(0);
|
|
}
|
|
]])],[rtems_cv_sysv_sem="yes"],[rtems_cv_sysv_sem="no"],[:])
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([RTEMS_SYSV_SHM],
|
|
[AC_REQUIRE([AC_PROG_CC])
|
|
# AC_REQUIRE([RTEMS_CANONICAL_HOST])
|
|
AC_CACHE_CHECK(whether $host supports System V shared memory,
|
|
rtems_cv_sysv_shm,
|
|
[
|
|
AC_RUN_IFELSE([AC_LANG_SOURCE([[
|
|
#include <sys/types.h>
|
|
#include <sys/ipc.h>
|
|
#include <sys/shm.h>
|
|
int main () {
|
|
int id=shmget(IPC_PRIVATE,1,IPC_CREAT|0400);
|
|
if (id == -1)
|
|
exit(1);
|
|
if (shmctl(id, IPC_RMID, 0) == -1)
|
|
exit(1);
|
|
exit(0);
|
|
}
|
|
]])],[rtems_cv_sysv_shm="yes"],[rtems_cv_sysv_shm="no"],[:])
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([RTEMS_SYSV_MSG],
|
|
[AC_REQUIRE([AC_PROG_CC])
|
|
# AC_REQUIRE([RTEMS_CANONICAL_HOST])
|
|
AC_CACHE_CHECK(whether $host supports System V messages,
|
|
rtems_cv_sysv_msg,
|
|
[
|
|
AC_RUN_IFELSE([AC_LANG_SOURCE([[
|
|
#include <sys/types.h>
|
|
#include <sys/ipc.h>
|
|
#include <sys/msg.h>
|
|
int main () {
|
|
int id=msgget(IPC_PRIVATE,IPC_CREAT|0400);
|
|
if (id == -1)
|
|
exit(1);
|
|
if (msgctl(id, IPC_RMID, 0) == -1)
|
|
exit(1);
|
|
exit(0);
|
|
}
|
|
]])],[rtems_cv_sysv_msg="yes"],[rtems_cv_sysv_msg="no"],[:])
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([RTEMS_CHECK_SYSV_UNIX],
|
|
[# AC_REQUIRE([RTEMS_CANONICAL_HOST])
|
|
if test "$RTEMS_CPU" = "unix" ; then
|
|
RTEMS_UNION_SEMUN
|
|
RTEMS_SYSV_SEM
|
|
if test "$rtems_cv_sysv_sem" != "yes" ; then
|
|
AC_MSG_ERROR([System V semaphores don't work, required by simulator])
|
|
fi
|
|
RTEMS_SYSV_SHM
|
|
if test "$rtems_cv_sysv_shm" != "yes" ; then
|
|
AC_MSG_ERROR([System V shared memory doesn't work, required by simulator])
|
|
fi
|
|
RTEMS_SYSV_MSG
|
|
if test "$rtems_cv_sysv_msg" != "yes" ; then
|
|
AC_MSG_ERROR([System V messages don't work, required by simulator])
|
|
fi
|
|
fi
|
|
])
|