diff options
| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-11-16 14:50:09 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-11-23 12:52:06 +0100 |
| commit | c42be504c92d76d2e06d0fc8ebd05fc913376d2d (patch) | |
| tree | 259f8a712a6139f427888647955bc3c95480877e /cpukit/posix/Makefile.am | |
| parent | score: Add RTEMS_ALIAS() (diff) | |
| download | rtems-c42be504c92d76d2e06d0fc8ebd05fc913376d2d.tar.bz2 | |
posix: Add self-contained pthread spinlock
Turn pthread_spinlock_t into a self-contained object. On uni-processor
configurations, interrupts are disabled in the lock/trylock operations
and the previous interrupt status is restored in the corresponding
unlock operations. On SMP configurations, a ticket lock is a acquired
and released in addition.
The self-contained pthread_spinlock_t object is defined by Newlib in
<sys/_pthreadtypes.h>.
typedef struct {
struct _Ticket_lock_Control _lock;
__uint32_t _interrupt_state;
} pthread_spinlock_t;
This implementation is simple and efficient. However, this test case of
the Linux Test Project would fail due to call of printf() and sleep()
during spin lock ownership:
https://github.com/linux-test-project/ltp/blob/master/testcases/open_posix_testsuite/conformance/interfaces/pthread_spin_lock/1-2.c
There is only limited support for profiling on SMP configurations.
Delete CORE spinlock implementation.
Update #2674.
Diffstat (limited to '')
| -rw-r--r-- | cpukit/posix/Makefile.am | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/cpukit/posix/Makefile.am b/cpukit/posix/Makefile.am index 5bf11c7713..d9a3437b13 100644 --- a/cpukit/posix/Makefile.am +++ b/cpukit/posix/Makefile.am @@ -21,6 +21,7 @@ include_rtems_posix_HEADERS += include/rtems/posix/keyimpl.h include_rtems_posix_HEADERS += include/rtems/posix/config.h include_rtems_posix_HEADERS += include/rtems/posix/posixapi.h include_rtems_posix_HEADERS += include/rtems/posix/priorityimpl.h +include_rtems_posix_HEADERS += include/rtems/posix/spinlockimpl.h if HAS_PTHREADS # include @@ -52,8 +53,6 @@ include_rtems_posix_HEADERS += include/rtems/posix/barrier.h include_rtems_posix_HEADERS += include/rtems/posix/barrierimpl.h include_rtems_posix_HEADERS += include/rtems/posix/rwlock.h include_rtems_posix_HEADERS += include/rtems/posix/rwlockimpl.h -include_rtems_posix_HEADERS += include/rtems/posix/spinlock.h -include_rtems_posix_HEADERS += include/rtems/posix/spinlockimpl.h ## src libposix_a_SOURCES += src/aio_cancel.c src/aio_error.c src/aio_fsync.c \ @@ -168,6 +167,12 @@ libposix_a_SOURCES += src/sigaddset.c src/sigdelset.c src/sigfillset.c \ libposix_a_SOURCES += src/sigprocmask.c +## SPINLOCK_C_FILES +libposix_a_SOURCES += src/pspindestroy.c +libposix_a_SOURCES += src/pspininit.c +libposix_a_SOURCES += src/pspinlock.c +libposix_a_SOURCES += src/pspinunlock.c + if HAS_PTHREADS libposix_a_SOURCES += src/sigpending.c \ src/sigqueue.c src/sigsuspend.c src/sigtimedwait.c \ @@ -188,11 +193,6 @@ libposix_a_SOURCES += src/semaphore.c src/semaphorecreatesupp.c \ src/semopen.c src/sempost.c src/semtimedwait.c src/semtrywait.c \ src/semunlink.c src/semwait.c -## SPINLOCK_C_FILES -libposix_a_SOURCES += src/pspin.c src/pspindestroy.c src/pspininit.c \ - src/pspinlock.c src/pspintrylock.c \ - src/pspinunlock.c - ## TIME_C_FILES libposix_a_SOURCES += src/adjtime.c src/clockgetcpuclockid.c |