31 lines
848 B
Rust
31 lines
848 B
Rust
//! The Linux `userfaultfd` API.
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//!
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//! # Safety
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//!
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//! Calling `userfaultfd` is safe, but the returned file descriptor lets users
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//! observe and manipulate process memory in magical ways.
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#![allow(unsafe_code)]
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use crate::fd::OwnedFd;
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use crate::{backend, io};
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pub use backend::mm::types::UserfaultfdFlags;
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/// `userfaultfd(flags)`
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///
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/// # Safety
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///
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/// The call itself is safe, but the returned file descriptor lets users
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/// observe and manipulate process memory in magical ways.
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///
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/// # References
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/// - [Linux]
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/// - [Linux userfaultfd]
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///
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/// [Linux]: https://man7.org/linux/man-pages/man2/userfaultfd.2.html
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/// [Linux userfaultfd]: https://www.kernel.org/doc/Documentation/vm/userfaultfd.txt
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#[inline]
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pub unsafe fn userfaultfd(flags: UserfaultfdFlags) -> io::Result<OwnedFd> {
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backend::mm::syscalls::userfaultfd(flags)
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}
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