.. SPDX-License-Identifier: CC-BY-SA-4.0

.. Copyright (C) 2015, 2021 embedded brains GmbH (http://www.embedded-brains.de)
.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)

.. This file is part of the RTEMS quality process and was automatically
.. generated.  If you find something that needs to be fixed or
.. worded better please post a report or patch to an RTEMS mailing list
.. or raise a bug report:
..
.. https://www.rtems.org/bugs.html
..
.. For information on updating and regenerating please refer to the How-To
.. section in the Software Requirements Engineering chapter of the
.. RTEMS Software Engineering manual.  The manual is provided as a part of
.. a release.  For development sources please refer to the online
.. documentation at:
..
.. https://docs.rtems.org

.. _FatalErrorManagerDirectives:

Directives
==========

This section details the directives of the Fatal Error Manager. A subsection is
dedicated to each of this manager's directives and lists the calling sequence,
parameters, description, return values, and notes of the directive.

.. Generated from spec:/rtems/fatal/if/fatal

.. raw:: latex

    \clearpage

.. index:: rtems_fatal()
.. index:: announce fatal error
.. index:: fatal error, announce

.. _InterfaceRtemsFatal:

rtems_fatal()
-------------

Invokes the fatal error handler.

.. rubric:: CALLING SEQUENCE:

.. code-block:: c

    void rtems_fatal(
      rtems_fatal_source fatal_source,
      rtems_fatal_code   fatal_code
    );

.. rubric:: PARAMETERS:

``fatal_source``
    This parameter is the fatal source.

``fatal_code``
    This parameter is the fatal code.

.. rubric:: DESCRIPTION:

This directive processes fatal errors.  The fatal source is set to the value of
the ``fatal_source`` parameter.  The fatal code is set to the value of the
``fatal_code`` parameter.

.. rubric:: CONSTRAINTS:

The following constraints apply to this directive:

* The directive may be called from within any runtime context.

* The directive will not return to the caller.

* The directive invokes the fatal error extensions in :term:`extension forward
  order`.

* The directive does not invoke handlers registered by :c:func:`atexit` or
  :c:func:`on_exit`.

* The directive may terminate the system.

.. Generated from spec:/rtems/fatal/if/panic

.. raw:: latex

    \clearpage

.. index:: rtems_panic()
.. index:: panic

.. _InterfaceRtemsPanic:

rtems_panic()
-------------

Prints the message and invokes the fatal error handler.

.. rubric:: CALLING SEQUENCE:

.. code-block:: c

    void rtems_panic( const char *fmt, ... );

.. rubric:: PARAMETERS:

``fmt``
    This parameter is the message format.

``...``
    This parameter is a list of optional parameters required by the message
    format.

.. rubric:: DESCRIPTION:

This directive prints a message via :ref:`InterfacePrintk` specified by the
``fmt`` parameter and optional parameters and then invokes the fatal error
handler.  The fatal source is set to :c:macro:`RTEMS_FATAL_SOURCE_PANIC`.  The
fatal code is set to the value of the ``fmt`` parameter value.

.. rubric:: CONSTRAINTS:

The following constraints apply to this directive:

* The directive may be called from within any runtime context.

* The directive will not return to the caller.

* The directive invokes the fatal error extensions in :term:`extension forward
  order`.

* The directive does not invoke handlers registered by :c:func:`atexit` or
  :c:func:`on_exit`.

* The directive may terminate the system.

.. Generated from spec:/rtems/fatal/if/shutdown-executive

.. raw:: latex

    \clearpage

.. index:: rtems_shutdown_executive()
.. index:: shutdown RTEMS

.. _InterfaceRtemsShutdownExecutive:

rtems_shutdown_executive()
--------------------------

Invokes the fatal error handler.

.. rubric:: CALLING SEQUENCE:

.. code-block:: c

    void rtems_shutdown_executive( uint32_t fatal_code );

.. rubric:: PARAMETERS:

``fatal_code``
    This parameter is the fatal code.

.. rubric:: DESCRIPTION:

This directive processes fatal errors.  The fatal source is set to
:c:macro:`RTEMS_FATAL_SOURCE_EXIT`.  The fatal code is set to the value of the
``fatal_code`` parameter.

.. rubric:: CONSTRAINTS:

The following constraints apply to this directive:

* The directive may be called from within any runtime context.

* The directive will not return to the caller.

* The directive invokes the fatal error extensions in :term:`extension forward
  order`.

* The directive does not invoke handlers registered by :c:func:`atexit` or
  :c:func:`on_exit`.

* The directive may terminate the system.

.. Generated from spec:/rtems/fatal/if/exception-frame-print

.. raw:: latex

    \clearpage

.. index:: rtems_exception_frame_print()
.. index:: exception frame

.. _InterfaceRtemsExceptionFramePrint:

rtems_exception_frame_print()
-----------------------------

Prints the exception frame.

.. rubric:: CALLING SEQUENCE:

.. code-block:: c

    void rtems_exception_frame_print( const rtems_exception_frame *frame );

.. rubric:: PARAMETERS:

``frame``
    This parameter is the reference to the exception frame to print.

.. rubric:: DESCRIPTION:

The exception frame is printed in an architecture-dependent format using
:ref:`InterfacePrintk`.

.. Generated from spec:/rtems/fatal/if/source-text

.. raw:: latex

    \clearpage

.. index:: rtems_fatal_source_text()
.. index:: fatal error

.. _InterfaceRtemsFatalSourceText:

rtems_fatal_source_text()
-------------------------

Returns a descriptive text for the fatal source.

.. rubric:: CALLING SEQUENCE:

.. code-block:: c

    const char *rtems_fatal_source_text( rtems_fatal_source fatal_source );

.. rubric:: PARAMETERS:

``fatal_source``
    This parameter is the fatal source.

.. rubric:: RETURN VALUES:

"?"
    The ``fatal_source`` parameter value was not a fatal source.

Returns a descriptive text for the fatal source.  The text for the fatal source
is the enumerator constant name.

.. rubric:: CONSTRAINTS:

The following constraints apply to this directive:

* The directive may be called from within any runtime context.

.. Generated from spec:/rtems/fatal/if/internal-error-text

.. raw:: latex

    \clearpage

.. index:: rtems_internal_error_text()
.. index:: fatal error

.. _InterfaceRtemsInternalErrorText:

rtems_internal_error_text()
---------------------------

Returns a descriptive text for the internal error code.

.. rubric:: CALLING SEQUENCE:

.. code-block:: c

    const char *rtems_internal_error_text( rtems_fatal_code internal_error_code );

.. rubric:: PARAMETERS:

``internal_error_code``
    This parameter is the internal error code.

.. rubric:: RETURN VALUES:

"?"
    The ``internal_error_code`` parameter value was not an internal error code.

Returns a descriptive text for the internal error code.  The text for the
internal error code is the enumerator constant name.

.. rubric:: CONSTRAINTS:

The following constraints apply to this directive:

* The directive may be called from within any runtime context.

.. Generated from spec:/rtems/fatal/if/error-occurred

.. raw:: latex

    \clearpage

.. index:: rtems_fatal_error_occurred()

.. _InterfaceRtemsFatalErrorOccurred:

rtems_fatal_error_occurred()
----------------------------

Invokes the fatal error handler.

.. rubric:: CALLING SEQUENCE:

.. code-block:: c

    void rtems_fatal_error_occurred( uint32_t fatal_code );

.. rubric:: PARAMETERS:

``fatal_code``
    This parameter is the fatal code.

.. rubric:: DESCRIPTION:

This directive processes fatal errors.  The fatal source is set to
:c:macro:`INTERNAL_ERROR_RTEMS_API`.  The fatal code is set to the value of the
``fatal_code`` parameter.

.. rubric:: NOTES:

This directive is deprecated and should not be used in new code.  It is
recommended to not use this directive since error locations cannot be uniquely
identified.  A recommended alternative directive is :ref:`InterfaceRtemsFatal`.

.. rubric:: CONSTRAINTS:

The following constraints apply to this directive:

* The directive may be called from within any runtime context.

* The directive will not return to the caller.

* The directive invokes the fatal error extensions in :term:`extension forward
  order`.

* The directive does not invoke handlers registered by :c:func:`atexit` or
  :c:func:`on_exit`.

* The directive may terminate the system.