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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.
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Update #2494.
Update #2555.
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Account for the terminating null character. Use _POSIX_PATH_MAX instead
of NAME_MAX according to _POSIX_Semaphore_Manager_initialization() and
_POSIX_Message_queue_Manager_initialization().
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The mq_open() function returns a descriptor to a POSIX message queue
object identified by a name. This is similar to sem_open(). In
contrast to the POSIX semaphore the POSIX message queues use a separate
object for the descriptor. This extra object is superfluous, since the
object identifier can be used directly for this purpose, just like for
the semaphores.
Update #2702.
Update #2555.
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These tests intentionally use the deprecated method. Eventually
this code in the sections can be deleted.
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Per task variables are inherently unsafe in SMP systems. This
patch disables them from the build and adds warnings in the
appropriate documentation and configuration sections.
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Enable pthread_once() for all configurations. The pthread_once()
function is one means to initialize POSIX keys. Another use case is the
C++ support.
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Implement the reeview changes.
Add a POSIX Fatal error domain.
Fix confdefs.h to correctly handle the internal POSIX mutexes.
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Add rtems_resource_rtems_api, rtems_resource_posix_api,
rtems_resource_snapshot, rtems_resource_snapshot_equal(), and
rtems_resource_snapshot_check().
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Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
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See http://www.rtems.org/pipermail/rtems-devel/2012-May/001006.html
for details.
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* psxconfig01/init.c: Create floating point tasks.
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* psxconfig01/init.c: Create more objects.
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* psxconfig01/init.c: Fix due to alignment issue.
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* psxconfig01/.cvsignore, psxconfig01/Makefile.am, psxconfig01/init.c,
psxconfig01/psxconfig01.doc, psxconfig01/psxconfig01.scn: New files.
* Makefile.am, configure.ac: Reflect changes above.
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