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If the RTEMS_INTERRUPT_LOCK_NEEDS_OBJECT define has a non-zero value, then the interrupt lock operations require an object of type rtems_interrupt_lock, otherwise no lock object is required. This indication can be used to avoid the space overhead for lock objects when they are not needed. In this case, the lock operations will not use a lock objects parameter. Update #4957 and #5038.
Real-Time Executive for Multiprocessing Systems
RTEMS is a real-time executive (kernel) which provides a high performance environment for embedded applications with the following features:
- Standards based user interfaces.
- Multitasking capabilities.
- Homogeneous and heterogeneous multiprocessor systems.
- Event-driven, priority-based, preemptive scheduling.
- Optional rate monotonic scheduling.
- Intertask communication and synchronisation.
- Priority inheritance.
- Responsive interrupt management.
- Dynamic memory allocation.
- High level of user configurability.
- Open source with a friendly user license.
Project git repositories are located at:
Online documentation is available at:
RTEMS Doxygen for CPUKit:
RTEMS POSIX 1003.1 Compliance Guide:
RTEMS Mailing Lists for general purpose use the users list and for developers use the devel list.
The version number for this software is indicated in the VERSION file.