1 files changed, 0 insertions, 258 deletions
diff --git a/vendor/rustix/src/backend/linux_raw/reg.rs b/vendor/rustix/src/backend/linux_raw/reg.rs
deleted file mode 100644
index 10f95a5..0000000
--- a/vendor/rustix/src/backend/linux_raw/reg.rs
+++ /dev/null
@@ -1,258 +0,0 @@
-//! Encapsulation for system call arguments and return values.
-//!
-//! The inline-asm code paths do some amount of reordering of arguments; to
-//! ensure that we don't accidentally misroute an argument or return value, we
-//! use distinct types for each argument index and return value.
-//!
-//! # Safety
-//!
-//! The `ToAsm` and `FromAsm` traits are unsafe to use; they should only be
-//! used by the syscall code which executes actual syscall machine
-//! instructions.
-
-#![allow(unsafe_code)]
-
-use super::c;
-use super::fd::RawFd;
-use core::marker::PhantomData;
-use core::ops::Range;
-
-pub(super) trait ToAsm: private::Sealed {
-    /// Convert `self` to a `usize` ready to be passed to a syscall
-    /// machine instruction.
-    ///
-    /// # Safety
-    ///
-    /// This should be used immediately before the syscall instruction, and the
-    /// returned value shouldn't be used for any other purpose.
-    #[must_use]
-    unsafe fn to_asm(self) -> *mut Opaque;
-}
-
-pub(super) trait FromAsm: private::Sealed {
-    /// Convert `raw` from a value produced by a syscall machine instruction
-    /// into a `Self`.
-    ///
-    /// # Safety
-    ///
-    /// This should be used immediately after the syscall instruction, and the
-    /// operand value shouldn't be used for any other purpose.
-    #[must_use]
-    unsafe fn from_asm(raw: *mut Opaque) -> Self;
-}
-
-/// To preserve provenance, syscall arguments and return values are passed as
-/// pointer types. They need a type to point to, so we define a custom private
-/// type, to prevent it from being used for anything else.
-#[repr(transparent)]
-pub(super) struct Opaque(c::c_void);
-
-// Argument numbers.
-pub(super) struct A0(());
-pub(super) struct A1(());
-pub(super) struct A2(());
-pub(super) struct A3(());
-pub(super) struct A4(());
-pub(super) struct A5(());
-#[cfg(any(target_arch = "mips", target_arch = "mips32r6"))]
-pub(super) struct A6(());
-#[cfg(target_arch = "x86")]
-pub(super) struct SocketArg;
-
-pub(super) trait ArgNumber: private::Sealed {}
-impl ArgNumber for A0 {}
-impl ArgNumber for A1 {}
-impl ArgNumber for A2 {}
-impl ArgNumber for A3 {}
-impl ArgNumber for A4 {}
-impl ArgNumber for A5 {}
-#[cfg(any(target_arch = "mips", target_arch = "mips32r6"))]
-impl ArgNumber for A6 {}
-#[cfg(target_arch = "x86")]
-impl ArgNumber for SocketArg {}
-
-// Return value numbers.
-pub(super) struct R0(());
-
-pub(super) trait RetNumber: private::Sealed {}
-impl RetNumber for R0 {}
-
-/// Syscall arguments use register-sized types. We use a newtype to
-/// discourage accidental misuse of the raw integer values.
-///
-/// This type doesn't implement `Clone` or `Copy`; it should be used exactly
-/// once. And it has a lifetime to ensure that it doesn't outlive any resources
-/// it might be pointing to.
-#[repr(transparent)]
-#[must_use]
-pub(super) struct ArgReg<'a, Num: ArgNumber> {
-    raw: *mut Opaque,
-    _phantom: PhantomData<(&'a (), Num)>,
-}
-
-impl<'a, Num: ArgNumber> ToAsm for ArgReg<'a, Num> {
-    #[inline]
-    unsafe fn to_asm(self) -> *mut Opaque {
-        self.raw
-    }
-}
-
-/// Syscall return values use register-sized types. We use a newtype to
-/// discourage accidental misuse of the raw integer values.
-///
-/// This type doesn't implement `Clone` or `Copy`; it should be used exactly
-/// once.
-#[repr(transparent)]
-#[must_use]
-pub(super) struct RetReg<Num: RetNumber> {
-    raw: *mut Opaque,
-    _phantom: PhantomData<Num>,
-}
-
-impl<Num: RetNumber> RetReg<Num> {
-    #[inline]
-    pub(super) fn decode_usize(self) -> usize {
-        debug_assert!(!(-4095..0).contains(&(self.raw as isize)));
-        self.raw as usize
-    }
-
-    #[inline]
-    pub(super) fn decode_raw_fd(self) -> RawFd {
-        let bits = self.decode_usize();
-        let raw_fd = bits as RawFd;
-
-        // Converting `raw` to `RawFd` should be lossless.
-        debug_assert_eq!(raw_fd as usize, bits);
-
-        raw_fd
-    }
-
-    #[inline]
-    pub(super) fn decode_c_int(self) -> c::c_int {
-        let bits = self.decode_usize();
-        let c_int_ = bits as c::c_int;
-
-        // Converting `raw` to `c_int` should be lossless.
-        debug_assert_eq!(c_int_ as usize, bits);
-
-        c_int_
-    }
-
-    #[inline]
-    pub(super) fn decode_c_uint(self) -> c::c_uint {
-        let bits = self.decode_usize();
-        let c_uint_ = bits as c::c_uint;
-
-        // Converting `raw` to `c_uint` should be lossless.
-        debug_assert_eq!(c_uint_ as usize, bits);
-
-        c_uint_
-    }
-
-    #[inline]
-    pub(super) fn decode_void_star(self) -> *mut c::c_void {
-        self.raw.cast()
-    }
-
-    #[cfg(target_pointer_width = "64")]
-    #[inline]
-    pub(super) fn decode_u64(self) -> u64 {
-        self.decode_usize() as u64
-    }
-
-    #[inline]
-    pub(super) fn decode_void(self) {
-        let ignore = self.decode_usize();
-        debug_assert_eq!(ignore, 0);
-    }
-
-    #[inline]
-    pub(super) fn decode_error_code(self) -> u16 {
-        let bits = self.raw as usize;
-
-        // `raw` must be in `-4095..0`. Linux always returns errors in
-        // `-4095..0`, and we double-check it here.
-        debug_assert!((-4095..0).contains(&(bits as isize)));
-
-        bits as u16
-    }
-
-    #[inline]
-    pub(super) fn is_nonzero(&self) -> bool {
-        !self.raw.is_null()
-    }
-
-    #[inline]
-    pub(super) fn is_negative(&self) -> bool {
-        (self.raw as isize) < 0
-    }
-
-    #[inline]
-    pub(super) fn is_in_range(&self, range: Range<isize>) -> bool {
-        range.contains(&(self.raw as isize))
-    }
-}
-
-impl<Num: RetNumber> FromAsm for RetReg<Num> {
-    #[inline]
-    unsafe fn from_asm(raw: *mut Opaque) -> Self {
-        Self {
-            raw,
-            _phantom: PhantomData,
-        }
-    }
-}
-
-#[repr(transparent)]
-pub(super) struct SyscallNumber<'a> {
-    nr: usize,
-    _phantom: PhantomData<&'a ()>,
-}
-
-impl<'a> ToAsm for SyscallNumber<'a> {
-    #[inline]
-    unsafe fn to_asm(self) -> *mut Opaque {
-        self.nr as usize as *mut Opaque
-    }
-}
-
-/// Encode a system call argument as an `ArgReg`.
-#[inline]
-pub(super) fn raw_arg<'a, Num: ArgNumber>(raw: *mut Opaque) -> ArgReg<'a, Num> {
-    ArgReg {
-        raw,
-        _phantom: PhantomData,
-    }
-}
-
-/// Encode a system call number (a `__NR_*` constant) as a `SyscallNumber`.
-#[inline]
-pub(super) const fn nr<'a>(nr: u32) -> SyscallNumber<'a> {
-    SyscallNumber {
-        nr: nr as usize,
-        _phantom: PhantomData,
-    }
-}
-
-/// Seal our various traits using the technique documented [here].
-///
-/// [here]: https://rust-lang.github.io/api-guidelines/future-proofing.html
-mod private {
-    pub trait Sealed {}
-
-    // Implement for those same types, but no others.
-    impl<'a, Num: super::ArgNumber> Sealed for super::ArgReg<'a, Num> {}
-    impl<Num: super::RetNumber> Sealed for super::RetReg<Num> {}
-    impl<'a> Sealed for super::SyscallNumber<'a> {}
-    impl Sealed for super::A0 {}
-    impl Sealed for super::A1 {}
-    impl Sealed for super::A2 {}
-    impl Sealed for super::A3 {}
-    impl Sealed for super::A4 {}
-    impl Sealed for super::A5 {}
-    #[cfg(any(target_arch = "mips", target_arch = "mips32r6"))]
-    impl Sealed for super::A6 {}
-    #[cfg(target_arch = "x86")]
-    impl Sealed for super::SocketArg {}
-    impl Sealed for super::R0 {}
-}