lib/std/io/test.zig       | 13 ++++++++++++
 lib/std/os.zig            | 32 ++++++++++++++++++++++++++++
 lib/std/os/bits/linux.zig | 36 ++++++++++++++++++++++++++++++++
 lib/std/os/linux.zig      |  4 ++++
 4 files changed, 85 insertions(+)