:orphan:

.. title:: 64BIT

.. option:: CONFIG_64BIT

*(No prompt -- not directly user assignable.)*

Type: ``bool``

Help
====

This option tells the build system that the target system is
using a 64-bit address space, meaning that pointer and long types
are 64 bits wide. This option is selected by arch/$ARCH/Kconfig,
soc/**/Kconfig, or boards/**/Kconfig and the user should generally
avoid modifying it.

Defaults
========

No defaults. Implicitly defaults to ``n``.

Symbols that select this symbol
===============================

- \ :option:`BOARD_NATIVE_POSIX_64BIT <CONFIG_BOARD_NATIVE_POSIX_64BIT>`
- \ :option:`BOARD_QEMU_RISCV64 <CONFIG_BOARD_QEMU_RISCV64>`
- \ :option:`ARM64 <CONFIG_ARM64>`
- \ :option:`X86_64 <CONFIG_X86_64>`

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

.. highlight:: kconfig

At ``arch/Kconfig:135``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:29``

Menu path: (Top) → General Architecture Options

.. parsed-literal::

    config 64BIT
    	bool
    	help
    	  This option tells the build system that the target system is
    	  using a 64-bit address space, meaning that pointer and long types
    	  are 64 bits wide. This option is selected by arch/$ARCH/Kconfig,
    	  soc/**/Kconfig, or boards/**/Kconfig and the user should generally
    	  avoid modifying it.

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