rtems/rtems-docs
1
0
Fork 0
mirror of https://git.rtems.org/rtems-docs/ synced 2025-05-15 00:06:39 +08:00
Code Issues Packages Projects Releases Wiki Activity

c-user: Move CONFIGURE_MEMORY_OVERHEAD

Browse Source 
Move CONFIGURE_MEMORY_OVERHEAD to general system configuration.
Remove now empty "Seldom Used Configuration Parameters" section.

Update #3836.
This commit is contained in:
Sebastian Huber 2019-12-10 13:58:57 +01:00
parent 3a3271eb26
commit a184ff463f
1 changed files with 29 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
c-user/configuring_a_system.rst
View File

@ -637,6 +637,35 @@ NOTE:
The size of the thread control block is increased by the maximum thread name
size. This configuration option is available since RTEMS 5.1.
.. index:: CONFIGURE_MEMORY_OVERHEAD
.. _CONFIGURE_MEMORY_OVERHEAD:
CONFIGURE_MEMORY_OVERHEAD
-------------------------
CONSTANT:
``CONFIGURE_MEMORY_OVERHEAD``
DATA TYPE:
Unsigned integer (``size_t``).
RANGE:
Zero or positive.
DEFAULT VALUE:
The default value is 0.
DESCRIPTION:
This parameter is set to the number of kilobytes the application wishes to
add to the requirements calculated by ``<rtems/confdefs.h>``.
NOTES:
This configuration parameter should only be used when it is suspected that
a bug in ``<rtems/confdefs.h>`` has resulted in an underestimation.
Typically the memory allocation will be too low when an application does
not account for all message queue buffers or task stacks.
.. index:: CONFIGURE_MICROSECONDS_PER_TICK
.. index:: tick quantum
@ -2070,43 +2099,6 @@ NOTES:
500, sizeof(other_message_type) \
)
Seldom Used Configuration Parameters
====================================
This section describes configuration parameters supported by
``<rtems/confdefs.h>`` which are seldom used by applications. These parameters
tend to be oriented to debugging system configurations and providing
work-arounds when the memory estimated by ``<rtems/confdefs.h>`` is incorrect.
.. index:: CONFIGURE_MEMORY_OVERHEAD
.. _CONFIGURE_MEMORY_OVERHEAD:
CONFIGURE_MEMORY_OVERHEAD
-------------------------
CONSTANT:
``CONFIGURE_MEMORY_OVERHEAD``
DATA TYPE:
Unsigned integer (``size_t``).
RANGE:
Zero or positive.
DEFAULT VALUE:
The default value is 0.
DESCRIPTION:
This parameter is set to the number of kilobytes the application wishes to
add to the requirements calculated by ``<rtems/confdefs.h>``.
NOTES:
This configuration parameter should only be used when it is suspected that
a bug in ``<rtems/confdefs.h>`` has resulted in an underestimation.
Typically the memory allocation will be too low when an application does
not account for all message queue buffers or task stacks.
C Library Support Configuration
===============================