0001 .. SPDX-License-Identifier: GPL-2.0+
0002
0003 ================================
0004 Documentation for /proc/sys/abi/
0005 ================================
0006
0007 .. See scripts/check-sysctl-docs to keep this up to date:
0008 .. scripts/check-sysctl-docs -vtable="abi" \
0009 .. Documentation/admin-guide/sysctl/abi.rst \
0010 .. $(git grep -l register_sysctl_)
0011
0012 Copyright (c) 2020, Stephen Kitt
0013
0014 For general info, see Documentation/admin-guide/sysctl/index.rst.
0015
0016 ------------------------------------------------------------------------------
0017
0018 The files in ``/proc/sys/abi`` can be used to see and modify
0019 ABI-related settings.
0020
0021 Currently, these files might (depending on your configuration)
0022 show up in ``/proc/sys/kernel``:
0023
0024 .. contents:: :local:
0025
0026 vsyscall32 (x86)
0027 ================
0028
0029 Determines whether the kernels maps a vDSO page into 32-bit processes;
0030 can be set to 1 to enable, or 0 to disable. Defaults to enabled if
0031 ``CONFIG_COMPAT_VDSO`` is set, disabled otherwise.
0032
0033 This controls the same setting as the ``vdso32`` kernel boot
0034 parameter.
