1================================ 2Documentation for /proc/sys/abi/ 3================================ 4 5.. See scripts/check-sysctl-docs to keep this up to date: 6.. scripts/check-sysctl-docs -vtable="abi" \ 7.. Documentation/admin-guide/sysctl/abi.rst \ 8.. $(git grep -l register_sysctl_) 9 10Copyright (c) 2020, Stephen Kitt 11 12For general info, see :doc:`index`. 13 14------------------------------------------------------------------------------ 15 16The files in ``/proc/sys/abi`` can be used to see and modify 17ABI-related settings. 18 19Currently, these files might (depending on your configuration) 20show up in ``/proc/sys/kernel``: 21 22.. contents:: :local: 23 24vsyscall32 (x86) 25================ 26 27Determines whether the kernels maps a vDSO page into 32-bit processes; 28can be set to 1 to enable, or 0 to disable. Defaults to enabled if 29``CONFIG_COMPAT_VDSO`` is set, disabled otherwide. 30 31This controls the same setting as the ``vdso32`` kernel boot 32parameter. 33