3 files changed, 0 insertions, 418 deletions
diff --git a/vendor/rustix/src/backend/linux_raw/runtime/mod.rs b/vendor/rustix/src/backend/linux_raw/runtime/mod.rs
deleted file mode 100644
index 0b48649..0000000
--- a/vendor/rustix/src/backend/linux_raw/runtime/mod.rs
+++ /dev/null
@@ -1,2 +0,0 @@
-pub(crate) mod syscalls;
-pub(crate) mod tls;
diff --git a/vendor/rustix/src/backend/linux_raw/runtime/syscalls.rs b/vendor/rustix/src/backend/linux_raw/runtime/syscalls.rs
deleted file mode 100644
index e00acc6..0000000
--- a/vendor/rustix/src/backend/linux_raw/runtime/syscalls.rs
+++ /dev/null
@@ -1,318 +0,0 @@
-//! linux_raw syscalls supporting `rustix::runtime`.
-//!
-//! # Safety
-//!
-//! See the `rustix::backend` module documentation for details.
-#![allow(unsafe_code, clippy::undocumented_unsafe_blocks)]
-
-use crate::backend::c;
-#[cfg(target_arch = "x86")]
-use crate::backend::conv::by_mut;
-#[cfg(target_arch = "x86_64")]
-use crate::backend::conv::c_uint;
-use crate::backend::conv::{
-    by_ref, c_int, ret, ret_c_int, ret_c_int_infallible, ret_error, ret_infallible, ret_void_star,
-    size_of, zero,
-};
-#[cfg(feature = "fs")]
-use crate::fd::BorrowedFd;
-use crate::ffi::CStr;
-#[cfg(feature = "fs")]
-use crate::fs::AtFlags;
-use crate::io;
-use crate::pid::{Pid, RawPid};
-use crate::runtime::{Fork, How, Sigaction, Siginfo, Sigset, Stack};
-use crate::signal::Signal;
-use crate::timespec::Timespec;
-use crate::utils::option_as_ptr;
-use core::ffi::c_void;
-use core::mem::MaybeUninit;
-#[cfg(target_pointer_width = "32")]
-use linux_raw_sys::general::__kernel_old_timespec;
-use linux_raw_sys::general::kernel_sigset_t;
-#[cfg(target_arch = "x86_64")]
-use linux_raw_sys::general::ARCH_SET_FS;
-
-#[inline]
-pub(crate) unsafe fn fork() -> io::Result<Fork> {
-    let mut child_pid = MaybeUninit::<RawPid>::uninit();
-
-    // Unix `fork` only returns the child PID in the parent; we'd like it in
-    // the child too, so set `CLONE_CHILD_SETTID` and pass in the address of
-    // a memory location to store it to in the child.
-    //
-    // Architectures differ on the order of the parameters.
-    #[cfg(target_arch = "x86_64")]
-    let pid = ret_c_int(syscall_readonly!(
-        __NR_clone,
-        c_int(c::SIGCHLD | c::CLONE_CHILD_SETTID),
-        zero(),
-        zero(),
-        &mut child_pid,
-        zero()
-    ))?;
-    #[cfg(any(
-        target_arch = "aarch64",
-        target_arch = "arm",
-        target_arch = "mips",
-        target_arch = "mips32r6",
-        target_arch = "mips64",
-        target_arch = "mips64r6",
-        target_arch = "powerpc64",
-        target_arch = "riscv64",
-        target_arch = "x86"
-    ))]
-    let pid = ret_c_int(syscall_readonly!(
-        __NR_clone,
-        c_int(c::SIGCHLD | c::CLONE_CHILD_SETTID),
-        zero(),
-        zero(),
-        zero(),
-        &mut child_pid
-    ))?;
-
-    Ok(if let Some(pid) = Pid::from_raw(pid) {
-        Fork::Parent(pid)
-    } else {
-        Fork::Child(Pid::from_raw_unchecked(child_pid.assume_init()))
-    })
-}
-
-#[cfg(feature = "fs")]
-pub(crate) unsafe fn execveat(
-    dirfd: BorrowedFd<'_>,
-    path: &CStr,
-    args: *const *const u8,
-    env_vars: *const *const u8,
-    flags: AtFlags,
-) -> io::Errno {
-    ret_error(syscall_readonly!(
-        __NR_execveat,
-        dirfd,
-        path,
-        args,
-        env_vars,
-        flags
-    ))
-}
-
-pub(crate) unsafe fn execve(
-    path: &CStr,
-    args: *const *const u8,
-    env_vars: *const *const u8,
-) -> io::Errno {
-    ret_error(syscall_readonly!(__NR_execve, path, args, env_vars))
-}
-
-pub(crate) mod tls {
-    use super::*;
-    #[cfg(target_arch = "x86")]
-    use crate::backend::runtime::tls::UserDesc;
-
-    #[cfg(target_arch = "x86")]
-    #[inline]
-    pub(crate) unsafe fn set_thread_area(u_info: &mut UserDesc) -> io::Result<()> {
-        ret(syscall!(__NR_set_thread_area, by_mut(u_info)))
-    }
-
-    #[cfg(target_arch = "arm")]
-    #[inline]
-    pub(crate) unsafe fn arm_set_tls(data: *mut c::c_void) -> io::Result<()> {
-        ret(syscall_readonly!(__ARM_NR_set_tls, data))
-    }
-
-    #[cfg(target_arch = "x86_64")]
-    #[inline]
-    pub(crate) unsafe fn set_fs(data: *mut c::c_void) {
-        ret_infallible(syscall_readonly!(
-            __NR_arch_prctl,
-            c_uint(ARCH_SET_FS),
-            data,
-            zero(),
-            zero(),
-            zero()
-        ))
-    }
-
-    #[inline]
-    pub(crate) unsafe fn set_tid_address(data: *mut c::c_void) -> Pid {
-        let tid: i32 = ret_c_int_infallible(syscall_readonly!(__NR_set_tid_address, data));
-        Pid::from_raw_unchecked(tid)
-    }
-
-    #[inline]
-    pub(crate) fn exit_thread(code: c::c_int) -> ! {
-        unsafe { syscall_noreturn!(__NR_exit, c_int(code)) }
-    }
-}
-
-#[inline]
-pub(crate) unsafe fn sigaction(signal: Signal, new: Option<Sigaction>) -> io::Result<Sigaction> {
-    let mut old = MaybeUninit::<Sigaction>::uninit();
-    let new = option_as_ptr(new.as_ref());
-    ret(syscall!(
-        __NR_rt_sigaction,
-        signal,
-        new,
-        &mut old,
-        size_of::<kernel_sigset_t, _>()
-    ))?;
-    Ok(old.assume_init())
-}
-
-#[inline]
-pub(crate) unsafe fn sigaltstack(new: Option<Stack>) -> io::Result<Stack> {
-    let mut old = MaybeUninit::<Stack>::uninit();
-    let new = option_as_ptr(new.as_ref());
-    ret(syscall!(__NR_sigaltstack, new, &mut old))?;
-    Ok(old.assume_init())
-}
-
-#[inline]
-pub(crate) unsafe fn tkill(tid: Pid, sig: Signal) -> io::Result<()> {
-    ret(syscall_readonly!(__NR_tkill, tid, sig))
-}
-
-#[inline]
-pub(crate) unsafe fn sigprocmask(how: How, new: Option<&Sigset>) -> io::Result<Sigset> {
-    let mut old = MaybeUninit::<Sigset>::uninit();
-    let new = option_as_ptr(new);
-    ret(syscall!(
-        __NR_rt_sigprocmask,
-        how,
-        new,
-        &mut old,
-        size_of::<kernel_sigset_t, _>()
-    ))?;
-    Ok(old.assume_init())
-}
-
-#[inline]
-pub(crate) fn sigpending() -> Sigset {
-    let mut pending = MaybeUninit::<Sigset>::uninit();
-    unsafe {
-        ret_infallible(syscall!(
-            __NR_rt_sigpending,
-            &mut pending,
-            size_of::<kernel_sigset_t, _>()
-        ));
-        pending.assume_init()
-    }
-}
-
-#[inline]
-pub(crate) fn sigsuspend(set: &Sigset) -> io::Result<()> {
-    unsafe {
-        ret(syscall_readonly!(
-            __NR_rt_sigsuspend,
-            by_ref(set),
-            size_of::<kernel_sigset_t, _>()
-        ))
-    }
-}
-
-#[inline]
-pub(crate) fn sigwait(set: &Sigset) -> io::Result<Signal> {
-    unsafe {
-        match Signal::from_raw(ret_c_int(syscall_readonly!(
-            __NR_rt_sigtimedwait,
-            by_ref(set),
-            zero(),
-            zero(),
-            size_of::<kernel_sigset_t, _>()
-        ))?) {
-            Some(signum) => Ok(signum),
-            None => Err(io::Errno::NOTSUP),
-        }
-    }
-}
-
-#[inline]
-pub(crate) fn sigwaitinfo(set: &Sigset) -> io::Result<Siginfo> {
-    let mut info = MaybeUninit::<Siginfo>::uninit();
-    unsafe {
-        let _signum = ret_c_int(syscall!(
-            __NR_rt_sigtimedwait,
-            by_ref(set),
-            &mut info,
-            zero(),
-            size_of::<kernel_sigset_t, _>()
-        ))?;
-        Ok(info.assume_init())
-    }
-}
-
-#[inline]
-pub(crate) fn sigtimedwait(set: &Sigset, timeout: Option<Timespec>) -> io::Result<Siginfo> {
-    let mut info = MaybeUninit::<Siginfo>::uninit();
-    let timeout_ptr = option_as_ptr(timeout.as_ref());
-
-    // `rt_sigtimedwait_time64` was introduced in Linux 5.1. The old
-    // `rt_sigtimedwait` syscall is not y2038-compatible on 32-bit
-    // architectures.
-    #[cfg(target_pointer_width = "32")]
-    unsafe {
-        match ret_c_int(syscall!(
-            __NR_rt_sigtimedwait_time64,
-            by_ref(set),
-            &mut info,
-            timeout_ptr,
-            size_of::<kernel_sigset_t, _>()
-        )) {
-            Ok(_signum) => (),
-            Err(io::Errno::NOSYS) => sigtimedwait_old(set, timeout, &mut info)?,
-            Err(err) => return Err(err),
-        }
-        Ok(info.assume_init())
-    }
-
-    #[cfg(target_pointer_width = "64")]
-    unsafe {
-        let _signum = ret_c_int(syscall!(
-            __NR_rt_sigtimedwait,
-            by_ref(set),
-            &mut info,
-            timeout_ptr,
-            size_of::<kernel_sigset_t, _>()
-        ))?;
-        Ok(info.assume_init())
-    }
-}
-
-#[cfg(target_pointer_width = "32")]
-unsafe fn sigtimedwait_old(
-    set: &Sigset,
-    timeout: Option<Timespec>,
-    info: &mut MaybeUninit<Siginfo>,
-) -> io::Result<()> {
-    let old_timeout = match timeout {
-        Some(timeout) => Some(__kernel_old_timespec {
-            tv_sec: timeout.tv_sec.try_into().map_err(|_| io::Errno::OVERFLOW)?,
-            tv_nsec: timeout.tv_nsec as _,
-        }),
-        None => None,
-    };
-
-    let old_timeout_ptr = option_as_ptr(old_timeout.as_ref());
-
-    let _signum = ret_c_int(syscall!(
-        __NR_rt_sigtimedwait,
-        by_ref(set),
-        info,
-        old_timeout_ptr,
-        size_of::<kernel_sigset_t, _>()
-    ))?;
-
-    Ok(())
-}
-
-#[inline]
-pub(crate) fn exit_group(code: c::c_int) -> ! {
-    unsafe { syscall_noreturn!(__NR_exit_group, c_int(code)) }
-}
-
-#[inline]
-pub(crate) unsafe fn brk(addr: *mut c::c_void) -> io::Result<*mut c_void> {
-    // This is non-`readonly`, to prevent loads from being reordered past it.
-    ret_void_star(syscall!(__NR_brk, addr))
-}
diff --git a/vendor/rustix/src/backend/linux_raw/runtime/tls.rs b/vendor/rustix/src/backend/linux_raw/runtime/tls.rs
deleted file mode 100644
index 69bd5ce..0000000
--- a/vendor/rustix/src/backend/linux_raw/runtime/tls.rs
+++ /dev/null
@@ -1,98 +0,0 @@
-//! TLS utilities.
-//!
-//! # Safety
-//!
-//! This file contains code that reads the raw phdr array pointed to by the
-//! kernel-provided AUXV values.
-#![allow(unsafe_code)]
-
-use crate::backend::c;
-use crate::backend::param::auxv::exe_phdrs;
-use core::arch::global_asm;
-use core::ptr::{null, NonNull};
-use linux_raw_sys::elf::*;
-
-/// For use with [`set_thread_area`].
-///
-/// [`set_thread_area`]: crate::runtime::set_thread_area
-#[cfg(target_arch = "x86")]
-pub type UserDesc = linux_raw_sys::general::user_desc;
-
-pub(crate) fn startup_tls_info() -> StartupTlsInfo {
-    let mut base = null();
-    let mut tls_phdr = null();
-    let mut stack_size = 0;
-
-    let (first_phdr, phent, phnum) = exe_phdrs();
-    let mut current_phdr = first_phdr.cast::<Elf_Phdr>();
-
-    // The dynamic address of the dynamic section, which we can compare with
-    // the `PT_DYNAMIC` header's static address, if present.
-    let dynamic_addr: *const c::c_void = unsafe { &_DYNAMIC };
-
-    // SAFETY: We assume the phdr array pointer and length the kernel provided
-    // to the process describe a valid phdr array.
-    unsafe {
-        let phdrs_end = current_phdr.cast::<u8>().add(phnum * phent).cast();
-        while current_phdr != phdrs_end {
-            let phdr = &*current_phdr;
-            current_phdr = current_phdr.cast::<u8>().add(phent).cast();
-
-            match phdr.p_type {
-                // Compute the offset from the static virtual addresses
-                // in the `p_vaddr` fields to the dynamic addresses. We don't
-                // always get a `PT_PHDR` or `PT_DYNAMIC` header, so use
-                // whichever one we get.
-                PT_PHDR => base = first_phdr.cast::<u8>().wrapping_sub(phdr.p_vaddr),
-                PT_DYNAMIC => base = dynamic_addr.cast::<u8>().wrapping_sub(phdr.p_vaddr),
-
-                PT_TLS => tls_phdr = phdr,
-                PT_GNU_STACK => stack_size = phdr.p_memsz,
-                _ => {}
-            }
-        }
-
-        if tls_phdr.is_null() {
-            StartupTlsInfo {
-                addr: NonNull::dangling().as_ptr(),
-                mem_size: 0,
-                file_size: 0,
-                align: 1,
-                stack_size: 0,
-            }
-        } else {
-            StartupTlsInfo {
-                addr: base.cast::<u8>().wrapping_add((*tls_phdr).p_vaddr).cast(),
-                mem_size: (*tls_phdr).p_memsz,
-                file_size: (*tls_phdr).p_filesz,
-                align: (*tls_phdr).p_align,
-                stack_size,
-            }
-        }
-    }
-}
-
-extern "C" {
-    /// Declare the `_DYNAMIC` symbol so that we can compare its address with
-    /// the static address in the `PT_DYNAMIC` header to learn our offset. Use
-    /// a weak symbol because `_DYNAMIC` is not always present.
-    static _DYNAMIC: c::c_void;
-}
-// Rust has `extern_weak` but it isn't stable, so use a `global_asm`.
-global_asm!(".weak _DYNAMIC");
-
-/// The values returned from [`startup_tls_info`].
-///
-/// [`startup_tls_info`]: crate::runtime::startup_tls_info
-pub struct StartupTlsInfo {
-    /// The base address of the TLS segment.
-    pub addr: *const c::c_void,
-    /// The size of the memory region.
-    pub mem_size: usize,
-    /// The size beyond which all memory is zero-initialized.
-    pub file_size: usize,
-    /// The required alignment for the TLS segment.
-    pub align: usize,
-    /// The requested minimum size for stacks.
-    pub stack_size: usize,
-}