.. SPDX-License-Identifier: GPL-2.0+

================================ Documentation for /proc/sys/abi/

.. See scripts/check-sysctl-docs to keep this up to date: .. scripts/check-sysctl-docs -vtable="abi"
.. Documentation/admin-guide/sysctl/abi.rst
.. $(git grep -l register_sysctl_)

For general info, see Documentation/admin-guide/sysctl/index.rst.

The files in /proc/sys/abi can be used to see and modify ABI-related settings.

Currently, these files might (depending on your configuration) show up in /proc/sys/kernel:

.. contents:: :local:

vsyscall32 (x86)

Determines whether the kernels maps a vDSO page into 32-bit processes; can be set to 1 to enable, or 0 to disable. Defaults to enabled if CONFIG_COMPAT_VDSO is set, disabled otherwise.

This controls the same setting as the vdso32 kernel boot parameter.