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c-user: Clarify global construction

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Sebastian Huber 2023-07-24 07:50:53 +02:00
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c-user/initialization/operations.rst
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@ -285,19 +285,24 @@ Many of RTEMS actions during initialization are based upon the contents of the
Configuration Table. For more information regarding the format and contents of Configuration Table. For more information regarding the format and contents of
this table, please refer to the chapter :ref:`Configuring a System`. this table, please refer to the chapter :ref:`Configuring a System`.
.. index:: global construction
.. _GlobalConstruction:
Global Construction Global Construction
------------------- -------------------
The global construction is carried out by the first Classic API initialization The :term:`global construction` is carried out by the Classic API
task (first is defined by index zero in the Classic API initialization task initialization task. If no Classic API initialization task exists, then it is
configuration table). If no Classic API initialization task exists, then it is carried out by the POSIX API initialization thread. If no initialization task
carried out by the first POSIX API initialization thread. If no initialization or thread exists, then no global construction is performed. The Classic API
task or thread exists, then no global construction is performed, see for task or POSIX API thread which carries out global construction is called the
example :ref:`Specify Idle Task Performs Application Initialization`. The main thread. For configuration options related to initialization tasks, see
Classic API task or POSIX API thread which carries out global construction is :ref:`CONFIGURE_RTEMS_INIT_TASKS_TABLE`,
called the main thread. :ref:`CONFIGURE_POSIX_INIT_THREAD_TABLE`, and
:ref:`CONFIGURE_IDLE_TASK_INITIALIZES_APPLICATION`.
Global construction runs before the entry function of the main thread. The Global construction runs before the :term:`task entry` of the main thread. The
configuration of the main thread must take the global construction into configuration of the main thread must take the global construction into
account. In particular, the main thread stack size, priority, attributes and account. In particular, the main thread stack size, priority, attributes and
initial modes must be set accordingly. Thread-local objects and POSIX key initial modes must be set accordingly. Thread-local objects and POSIX key