:orphan:

.. title:: CONFIG_NEWLIB_LIBC_MAX_MAPPED_REGION_SIZE

.. kconfig:: CONFIG_NEWLIB_LIBC_MAX_MAPPED_REGION_SIZE

CONFIG_NEWLIB_LIBC_MAX_MAPPED_REGION_SIZE
#########################################

*Maximum memory mapped for newlib heap*

Type: ``int``

Help
====

.. code-block:: none

    On MMU-based systems, indicates the maximum amount of memory which
    will be used for the newlib malloc() heap. The actual amount of
    memory used will be the minimum of this value and the amount of
    free physical memory at kernel boot.

Direct dependencies
===================

\ :kconfig:`MMU <CONFIG_MMU>` && \ :kconfig:`NEWLIB_LIBC <CONFIG_NEWLIB_LIBC>`

*(Includes any dependencies from ifs and menus.)*

Default
=======

- 1048576

Kconfig definition
==================



At ``<Zephyr Library>/libc/Kconfig:67``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:43`` → ``<Zephyr Library>/Kconfig:4``

Menu path: (Top) → C Library

.. code-block:: kconfig

    config NEWLIB_LIBC_MAX_MAPPED_REGION_SIZE
    	int "Maximum memory mapped for newlib heap"
    	default 1048576
    	depends on MMU && NEWLIB_LIBC
    	help
    	  On MMU-based systems, indicates the maximum amount of memory which
    	  will be used for the newlib malloc() heap. The actual amount of
    	  memory used will be the minimum of this value and the amount of
    	  free physical memory at kernel boot.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*