Although inactive, IEEE 1003.13-2003 defined a number of AEP that inspired the modern subprofiling options of IEEE 1003.1-2017. The single-purpose realtime system profiles are listed below, for reference, in terms that agree with the current POSIX-1 standard. PSE54 is not considered at this time.
PSE51 System Interfaces| Symbol | Support | Remarks |
|---|---|---|
| _POSIX_AEP_REALTIME_MINIMAL | -1 |
| Symbol | Support | Remarks |
|---|---|---|
| POSIX_C_LANG_JUMP | yes | :ref:`POSIX_C_LANG_JUMP <posix_option_group_c_lang_jump>` |
| POSIX_C_LANG_SUPPORT | yes | :ref:`POSIX_C_LANG_SUPPORT <posix_option_group_c_lang_support>` |
| POSIX_DEVICE_IO | :ref:`†<posix_undefined_behaviour>` | |
| POSIX_FILE_LOCKING | ||
| POSIX_SIGNALS | :ref:`†<posix_undefined_behaviour>` | |
| POSIX_SINGLE_PROCESS | yes | |
| POSIX_THREADS_BASE | yes | :ref:`†<posix_undefined_behaviour>` |
| XSI_THREADS_EXT | yes |
| Symbol | Support | Remarks |
|---|---|---|
| _POSIX_CLOCK_SELECTION | 200809L | :kconfig:option:`CONFIG_POSIX_CLOCK` |
| _POSIX_FSYNC | -1 | |
| _POSIX_MEMLOCK | -1 | |
| _POSIX_MEMLOCK_RANGE | -1 | |
| _POSIX_MONOTONIC_CLOCK | 200809L | :kconfig:option:`CONFIG_POSIX_CLOCK` |
| _POSIX_REALTIME_SIGNALS | -1 | |
| _POSIX_SEMAPHORES | 200809L | :kconfig:option:`CONFIG_PTHREAD_IPC` |
| _POSIX_SHARED_MEMORY_OBJECTS | -1 | |
| _POSIX_SYNCHRONIZED_IO | -1 | |
| _POSIX_THREAD_ATTR_STACKADDR | 200809L | :kconfig:option:`CONFIG_PTHREAD` |
| _POSIX_THREAD_ATTR_STACKSIZE | 200809L | :kconfig:option:`CONFIG_PTHREAD` |
| _POSIX_THREAD_CPUTIME | -1 | |
| _POSIX_THREAD_PRIO_INHERIT | 200809L | :kconfig:option:`CONFIG_PTHREAD_MUTEX` |
| _POSIX_THREAD_PRIO_PROTECT | -1 | |
| _POSIX_THREAD_PRIORITY_SCHEDULING | -1 | :kconfig:option:`CONFIG_POSIX_PRIORITY_SCHEDULING` (will fail with ENOSYS:ref:`†<posix_undefined_behaviour>`) |
| _POSIX_THREAD_SPORADIC_SERVER | -1 | |
| _POSIX_TIMEOUTS | 200809L | :kconfig:option:`CONFIG_PTHREAD_IPC` |
| _POSIX_TIMERS | 200809L | :kconfig:option:`CONFIG_POSIX_CLOCK` |
| Symbol | Support | Remarks |
|---|---|---|
| _POSIX_AEP_REALTIME_CONTROLLER | -1 |
| Symbol | Support | Remarks |
|---|---|---|
| POSIX_C_LANG_JUMP | yes | :ref:`POSIX_C_LANG_JUMP <posix_option_group_c_lang_jump>` |
| POSIX_C_LANG_MATH | yes | :ref:`POSIX_C_LANG_MATH <posix_option_group_c_lang_math>` |
| POSIX_C_LANG_SUPPORT | yes | :ref:`POSIX_C_LANG_SUPPORT <posix_option_group_c_lang_support>` |
| POSIX_DEVICE_IO | :ref:`†<posix_undefined_behaviour>` | |
| POSIX_FD_MGMT | ||
| POSIX_FILE_LOCKING | ||
| POSIX_FILE_SYSTEM | ||
| POSIX_SIGNALS | :ref:`†<posix_undefined_behaviour>` | |
| POSIX_SINGLE_PROCESS | yes | |
| POSIX_THREADS_BASE | yes | :ref:`†<posix_undefined_behaviour>` |
| XSI_THREADS_EXT | yes | :ref:`†<posix_undefined_behaviour>` |
| Symbol | Support | Remarks |
|---|---|---|
| _POSIX_CLOCK_SELECTION | 200809L | :kconfig:option:`CONFIG_POSIX_CLOCK` |
| _POSIX_FSYNC | -1 | |
| _POSIX_MAPPED_FILES | -1 | |
| _POSIX_MEMLOCK | -1 | |
| _POSIX_MEMLOCK_RANGE | -1 | |
| _POSIX_MESSAGE_PASSING | 200809L | :kconfig:option:`CONFIG_POSIX_MQUEUE` |
| _POSIX_MONOTONIC_CLOCK | 200809L | :kconfig:option:`CONFIG_POSIX_CLOCK` |
| _POSIX_REALTIME_SIGNALS | -1 | |
| _POSIX_SEMAPHORES | 200809L | :kconfig:option:`CONFIG_PTHREAD_IPC` |
| _POSIX_SHARED_MEMORY_OBJECTS | -1 | |
| _POSIX_SYNCHRONIZED_IO | -1 | |
| _POSIX_THREAD_ATTR_STACKADDR | 200809L | :kconfig:option:`CONFIG_PTHREAD` |
| _POSIX_THREAD_ATTR_STACKSIZE | 200809L | :kconfig:option:`CONFIG_PTHREAD` |
| _POSIX_THREAD_CPUTIME | -1 | |
| _POSIX_THREAD_PRIO_INHERIT | 200809L | :kconfig:option:`CONFIG_PTHREAD_MUTEX` |
| _POSIX_THREAD_PRIO_PROTECT | -1 | |
| _POSIX_THREAD_PRIORITY_SCHEDULING | -1 | |
| _POSIX_THREAD_SPORADIC_SERVER | -1 | |
| _POSIX_TIMEOUTS | 200809L | :kconfig:option:`CONFIG_PTHREAD_IPC` |
| _POSIX_TIMERS | 200809L | :kconfig:option:`CONFIG_POSIX_CLOCK` |
| _POSIX_TRACE | -1 | |
| _POSIX_TRACE_EVENT_FILTER | -1 | |
| _POSIX_TRACE_LOG | -1 |
| Symbol | Support | Remarks |
|---|---|---|
| _POSIX_AEP_REALTIME_DEDICATED | -1 |
| Symbol | Support | Remarks |
|---|---|---|
| POSIX_C_LANG_JUMP | yes | :ref:`POSIX_C_LANG_JUMP <posix_option_group_c_lang_jump>` |
| POSIX_C_LANG_MATH | yes | :ref:`POSIX_C_LANG_MATH <posix_option_group_c_lang_math>` |
| POSIX_C_LANG_SUPPORT | yes | :ref:`POSIX_C_LANG_SUPPORT <posix_option_group_c_lang_support>` |
| POSIX_DEVICE_IO | :ref:`†<posix_undefined_behaviour>` | |
| POSIX_FD_MGMT | ||
| POSIX_FILE_LOCKING | ||
| POSIX_FILE_SYSTEM | ||
| POSIX_MULTI_PROCESS | :ref:`†<posix_undefined_behaviour>` | |
| POSIX_NETWORKING | yes | :ref:`POSIX_NETWORKING <posix_option_group_networking>` |
| POSIX_PIPE | :ref:`†<posix_undefined_behaviour>` | |
| POSIX_SIGNALS | :ref:`†<posix_undefined_behaviour>` | |
| POSIX_SIGNAL_JUMP | :ref:`†<posix_undefined_behaviour>` | |
| POSIX_SINGLE_PROCESS | yes | |
| POSIX_THREADS_BASE | yes | :ref:`†<posix_undefined_behaviour>` |
| XSI_THREADS_EXT | yes | :ref:`†<posix_undefined_behaviour>` |
| Symbol | Support | Remarks |
|---|---|---|
| _POSIX_ASYNCHRONOUS_IO | -1 | |
| _POSIX_CLOCK_SELECTION | 200809L | :kconfig:option:`CONFIG_POSIX_CLOCK` |
| _POSIX_CPUTIME | -1 | |
| _POSIX_FSYNC | -1 | |
| _POSIX_MAPPED_FILES | -1 | |
| _POSIX_MEMLOCK | -1 | |
| _POSIX_MEMLOCK_RANGE | -1 | |
| _POSIX_MEMORY_PROTECTION | -1 | |
| _POSIX_MESSAGE_PASSING | 200809L | :kconfig:option:`CONFIG_POSIX_MQUEUE` |
| _POSIX_MONOTONIC_CLOCK | 200809L | :kconfig:option:`CONFIG_POSIX_CLOCK` |
| _POSIX_PRIORITIZED_IO | -1 | |
| _POSIX_PRIORITY_SCHEDULING | -1 | |
| _POSIX_RAW_SOCKETS | 200809L | :kconfig:option:`CONFIG_NET_SOCKETS` |
| _POSIX_REALTIME_SIGNALS | -1 | |
| _POSIX_SEMAPHORES | 200809L | :kconfig:option:`CONFIG_PTHREAD_IPC` |
| _POSIX_SHARED_MEMORY_OBJECTS | -1 | |
| _POSIX_SPAWN | -1 | |
| _POSIX_SPORADIC_SERVER | -1 | |
| _POSIX_SYNCHRONIZED_IO | -1 | |
| _POSIX_THREAD_ATTR_STACKADDR | 200809L | :kconfig:option:`CONFIG_PTHREAD` |
| _POSIX_THREAD_ATTR_STACKSIZE | 200809L | :kconfig:option:`CONFIG_PTHREAD` |
| _POSIX_THREAD_CPUTIME | -1 | |
| _POSIX_THREAD_PRIO_INHERIT | 200809L | :kconfig:option:`CONFIG_PTHREAD_MUTEX` |
| _POSIX_THREAD_PRIO_PROTECT | -1 | |
| _POSIX_THREAD_PRIORITY_SCHEDULING | -1 | |
| _POSIX_THREAD_PROCESS_SHARED | -1 | |
| _POSIX_THREAD_SPORADIC_SERVER | -1 | |
| _POSIX_TIMEOUTS | 200809L | :kconfig:option:`CONFIG_PTHREAD_IPC` |
| _POSIX_TIMERS | 200809L | :kconfig:option:`CONFIG_POSIX_CLOCK` |
| _POSIX_TRACE | -1 | |
| _POSIX_TRACE_EVENT_FILTER | -1 | |
| _POSIX_TRACE_LOG | -1 |