abi.rst 991 B

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  1. .. SPDX-License-Identifier: GPL-2.0+
  2. ================================
  3. Documentation for /proc/sys/abi/
  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. Copyright (c) 2020, Stephen Kitt
  10. For general info, see :doc:`index`.
  11. ------------------------------------------------------------------------------
  12. The files in ``/proc/sys/abi`` can be used to see and modify
  13. ABI-related settings.
  14. Currently, these files might (depending on your configuration)
  15. show up in ``/proc/sys/kernel``:
  16. .. contents:: :local:
  17. vsyscall32 (x86)
  18. ================
  19. Determines whether the kernels maps a vDSO page into 32-bit processes;
  20. can be set to 1 to enable, or 0 to disable. Defaults to enabled if
  21. ``CONFIG_COMPAT_VDSO`` is set, disabled otherwide.
  22. This controls the same setting as the ``vdso32`` kernel boot
  23. parameter.