Target: `x86_64-unknown-freebsd` API: [GNU-compatible](https://github.com/freebsd/freebsd-src/commit/0667d0e0e365) Test case: [nix](https://github.com/nix-rust/nix/blob/1939f922431c2009cc726a9ff260e978a2b15fd7/src/unistd.rs#L885), [pager](https://gitlab.com/imp/pager-rs/-/commit/6efe69c173fa), [libafl](https://github.com/AFLplusplus/LibAFL/blob/0f9c82f893b0bb8e91b78c5c17f8d1c8d452669e/utils/noaslr/libnoaslr/src/lib.rs#L188)
