Documentation for /proc/sys/abi/ — The Linux Kernel 5.18.5-gnu-1 documentation

# Documentation for /proc/sys/abi/

Copyright (c) 2020, Stephen Kitt

For general info, see Documentation for /proc/sys.

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`:

## 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.