1 files changed, 0 insertions, 570 deletions
diff --git a/vendor/rustix-0.37.6/src/backend/libc/process/syscalls.rs b/vendor/rustix-0.37.6/src/backend/libc/process/syscalls.rs
deleted file mode 100644
index d208bda7a..000000000
--- a/vendor/rustix-0.37.6/src/backend/libc/process/syscalls.rs
+++ /dev/null
@@ -1,570 +0,0 @@
-//! libc syscalls supporting `rustix::process`.
-
-use super::super::c;
-#[cfg(not(any(target_os = "wasi", target_os = "fuchsia")))]
-use super::super::conv::borrowed_fd;
-use super::super::conv::{c_str, ret, ret_c_int, ret_discarded_char_ptr};
-#[cfg(not(target_os = "wasi"))]
-use super::super::conv::{ret_infallible, ret_pid_t};
-#[cfg(any(target_os = "android", target_os = "linux"))]
-use super::super::conv::{syscall_ret, syscall_ret_u32};
-#[cfg(any(
-    target_os = "android",
-    target_os = "dragonfly",
-    target_os = "fuchsia",
-    target_os = "linux",
-))]
-use super::types::RawCpuSet;
-#[cfg(not(any(target_os = "wasi", target_os = "fuchsia")))]
-use crate::fd::BorrowedFd;
-#[cfg(target_os = "linux")]
-use crate::fd::{AsRawFd, OwnedFd};
-use crate::ffi::CStr;
-#[cfg(feature = "fs")]
-use crate::fs::Mode;
-use crate::io;
-#[cfg(not(any(target_os = "wasi", target_os = "redox", target_os = "openbsd")))]
-use crate::process::{WaitId, WaitidOptions, WaitidStatus};
-use core::mem::MaybeUninit;
-#[cfg(target_os = "linux")]
-use {super::super::conv::syscall_ret_owned_fd, crate::process::PidfdFlags};
-#[cfg(any(target_os = "android", target_os = "linux"))]
-use {
-    super::super::offset::libc_prlimit,
-    crate::process::{Cpuid, MembarrierCommand, MembarrierQuery},
-};
-#[cfg(not(any(target_os = "fuchsia", target_os = "redox", target_os = "wasi")))]
-use {
-    super::super::offset::{libc_getrlimit, libc_rlimit, libc_setrlimit, LIBC_RLIM_INFINITY},
-    crate::process::{Resource, Rlimit},
-    core::convert::TryInto,
-};
-#[cfg(not(target_os = "wasi"))]
-use {
-    super::types::RawUname,
-    crate::process::{Gid, Pid, RawNonZeroPid, RawPid, Signal, Uid, WaitOptions, WaitStatus},
-};
-
-#[cfg(not(target_os = "wasi"))]
-pub(crate) fn chdir(path: &CStr) -> io::Result<()> {
-    unsafe { ret(c::chdir(c_str(path))) }
-}
-
-#[cfg(not(any(target_os = "wasi", target_os = "fuchsia")))]
-pub(crate) fn fchdir(dirfd: BorrowedFd<'_>) -> io::Result<()> {
-    unsafe { ret(c::fchdir(borrowed_fd(dirfd))) }
-}
-
-#[cfg(not(target_os = "wasi"))]
-pub(crate) fn getcwd(buf: &mut [u8]) -> io::Result<()> {
-    unsafe { ret_discarded_char_ptr(c::getcwd(buf.as_mut_ptr().cast(), buf.len())) }
-}
-
-#[cfg(any(target_os = "android", target_os = "linux"))]
-pub(crate) fn membarrier_query() -> MembarrierQuery {
-    // GLIBC does not have a wrapper for `membarrier`; [the documentation]
-    // says to use `syscall`.
-    //
-    // [the documentation]: https://man7.org/linux/man-pages/man2/membarrier.2.html#NOTES
-    const MEMBARRIER_CMD_QUERY: u32 = 0;
-    unsafe {
-        match syscall_ret_u32(c::syscall(c::SYS_membarrier, MEMBARRIER_CMD_QUERY, 0)) {
-            Ok(query) => MembarrierQuery::from_bits_unchecked(query),
-            Err(_) => MembarrierQuery::empty(),
-        }
-    }
-}
-
-#[cfg(any(target_os = "android", target_os = "linux"))]
-pub(crate) fn membarrier(cmd: MembarrierCommand) -> io::Result<()> {
-    unsafe { syscall_ret(c::syscall(c::SYS_membarrier, cmd as u32, 0)) }
-}
-
-#[cfg(any(target_os = "android", target_os = "linux"))]
-pub(crate) fn membarrier_cpu(cmd: MembarrierCommand, cpu: Cpuid) -> io::Result<()> {
-    const MEMBARRIER_CMD_FLAG_CPU: u32 = 1;
-    unsafe {
-        syscall_ret(c::syscall(
-            c::SYS_membarrier,
-            cmd as u32,
-            MEMBARRIER_CMD_FLAG_CPU,
-            cpu.as_raw(),
-        ))
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-#[must_use]
-pub(crate) fn getuid() -> Uid {
-    unsafe {
-        let uid = c::getuid();
-        Uid::from_raw(uid)
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-#[must_use]
-pub(crate) fn geteuid() -> Uid {
-    unsafe {
-        let uid = c::geteuid();
-        Uid::from_raw(uid)
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-#[must_use]
-pub(crate) fn getgid() -> Gid {
-    unsafe {
-        let gid = c::getgid();
-        Gid::from_raw(gid)
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-#[must_use]
-pub(crate) fn getegid() -> Gid {
-    unsafe {
-        let gid = c::getegid();
-        Gid::from_raw(gid)
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-#[must_use]
-pub(crate) fn getpid() -> Pid {
-    unsafe {
-        let pid = c::getpid();
-        debug_assert_ne!(pid, 0);
-        Pid::from_raw_nonzero(RawNonZeroPid::new_unchecked(pid))
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-#[must_use]
-pub(crate) fn getppid() -> Option<Pid> {
-    unsafe {
-        let pid: i32 = c::getppid();
-        Pid::from_raw(pid)
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-pub(crate) fn getpgid(pid: Option<Pid>) -> io::Result<Pid> {
-    unsafe {
-        let pgid = ret_pid_t(c::getpgid(Pid::as_raw(pid) as _))?;
-        debug_assert_ne!(pgid, 0);
-        Ok(Pid::from_raw_nonzero(RawNonZeroPid::new_unchecked(pgid)))
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-#[must_use]
-pub(crate) fn getpgrp() -> Pid {
-    unsafe {
-        let pgid = c::getpgrp();
-        debug_assert_ne!(pgid, 0);
-        Pid::from_raw_nonzero(RawNonZeroPid::new_unchecked(pgid))
-    }
-}
-
-#[cfg(any(
-    target_os = "android",
-    target_os = "dragonfly",
-    target_os = "fuchsia",
-    target_os = "linux",
-))]
-#[inline]
-pub(crate) fn sched_getaffinity(pid: Option<Pid>, cpuset: &mut RawCpuSet) -> io::Result<()> {
-    unsafe {
-        ret(c::sched_getaffinity(
-            Pid::as_raw(pid) as _,
-            core::mem::size_of::<RawCpuSet>(),
-            cpuset,
-        ))
-    }
-}
-
-#[cfg(any(
-    target_os = "android",
-    target_os = "dragonfly",
-    target_os = "fuchsia",
-    target_os = "linux",
-))]
-#[inline]
-pub(crate) fn sched_setaffinity(pid: Option<Pid>, cpuset: &RawCpuSet) -> io::Result<()> {
-    unsafe {
-        ret(c::sched_setaffinity(
-            Pid::as_raw(pid) as _,
-            core::mem::size_of::<RawCpuSet>(),
-            cpuset,
-        ))
-    }
-}
-
-#[inline]
-pub(crate) fn sched_yield() {
-    unsafe {
-        let _ = c::sched_yield();
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-pub(crate) fn uname() -> RawUname {
-    let mut uname = MaybeUninit::<RawUname>::uninit();
-    unsafe {
-        ret_infallible(c::uname(uname.as_mut_ptr()));
-        uname.assume_init()
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[cfg(feature = "fs")]
-#[inline]
-pub(crate) fn umask(mask: Mode) -> Mode {
-    // TODO: Use `from_bits_retain` when we switch to bitflags 2.0.
-    unsafe { Mode::from_bits_truncate(c::umask(mask.bits() as _) as _) }
-}
-
-#[cfg(not(any(target_os = "fuchsia", target_os = "wasi")))]
-#[inline]
-pub(crate) fn nice(inc: i32) -> io::Result<i32> {
-    libc_errno::set_errno(libc_errno::Errno(0));
-    let r = unsafe { c::nice(inc) };
-    if libc_errno::errno().0 != 0 {
-        ret_c_int(r)
-    } else {
-        Ok(r)
-    }
-}
-
-#[cfg(not(any(target_os = "fuchsia", target_os = "redox", target_os = "wasi")))]
-#[inline]
-pub(crate) fn getpriority_user(uid: Uid) -> io::Result<i32> {
-    libc_errno::set_errno(libc_errno::Errno(0));
-    let r = unsafe { c::getpriority(c::PRIO_USER, uid.as_raw() as _) };
-    if libc_errno::errno().0 != 0 {
-        ret_c_int(r)
-    } else {
-        Ok(r)
-    }
-}
-
-#[cfg(not(any(target_os = "fuchsia", target_os = "redox", target_os = "wasi")))]
-#[inline]
-pub(crate) fn getpriority_pgrp(pgid: Option<Pid>) -> io::Result<i32> {
-    libc_errno::set_errno(libc_errno::Errno(0));
-    let r = unsafe { c::getpriority(c::PRIO_PGRP, Pid::as_raw(pgid) as _) };
-    if libc_errno::errno().0 != 0 {
-        ret_c_int(r)
-    } else {
-        Ok(r)
-    }
-}
-
-#[cfg(not(any(target_os = "fuchsia", target_os = "redox", target_os = "wasi")))]
-#[inline]
-pub(crate) fn getpriority_process(pid: Option<Pid>) -> io::Result<i32> {
-    libc_errno::set_errno(libc_errno::Errno(0));
-    let r = unsafe { c::getpriority(c::PRIO_PROCESS, Pid::as_raw(pid) as _) };
-    if libc_errno::errno().0 != 0 {
-        ret_c_int(r)
-    } else {
-        Ok(r)
-    }
-}
-
-#[cfg(not(any(target_os = "fuchsia", target_os = "redox", target_os = "wasi")))]
-#[inline]
-pub(crate) fn setpriority_user(uid: Uid, priority: i32) -> io::Result<()> {
-    unsafe { ret(c::setpriority(c::PRIO_USER, uid.as_raw() as _, priority)) }
-}
-
-#[cfg(not(any(target_os = "fuchsia", target_os = "redox", target_os = "wasi")))]
-#[inline]
-pub(crate) fn setpriority_pgrp(pgid: Option<Pid>, priority: i32) -> io::Result<()> {
-    unsafe {
-        ret(c::setpriority(
-            c::PRIO_PGRP,
-            Pid::as_raw(pgid) as _,
-            priority,
-        ))
-    }
-}
-
-#[cfg(not(any(target_os = "fuchsia", target_os = "redox", target_os = "wasi")))]
-#[inline]
-pub(crate) fn setpriority_process(pid: Option<Pid>, priority: i32) -> io::Result<()> {
-    unsafe {
-        ret(c::setpriority(
-            c::PRIO_PROCESS,
-            Pid::as_raw(pid) as _,
-            priority,
-        ))
-    }
-}
-
-#[cfg(not(any(target_os = "fuchsia", target_os = "redox", target_os = "wasi")))]
-#[inline]
-pub(crate) fn getrlimit(limit: Resource) -> Rlimit {
-    let mut result = MaybeUninit::<libc_rlimit>::uninit();
-    unsafe {
-        ret_infallible(libc_getrlimit(limit as _, result.as_mut_ptr()));
-        rlimit_from_libc(result.assume_init())
-    }
-}
-
-#[cfg(not(any(target_os = "fuchsia", target_os = "redox", target_os = "wasi")))]
-#[inline]
-pub(crate) fn setrlimit(limit: Resource, new: Rlimit) -> io::Result<()> {
-    let lim = rlimit_to_libc(new)?;
-    unsafe { ret(libc_setrlimit(limit as _, &lim)) }
-}
-
-#[cfg(any(target_os = "android", target_os = "linux"))]
-#[inline]
-pub(crate) fn prlimit(pid: Option<Pid>, limit: Resource, new: Rlimit) -> io::Result<Rlimit> {
-    let lim = rlimit_to_libc(new)?;
-    let mut result = MaybeUninit::<libc_rlimit>::uninit();
-    unsafe {
-        ret(libc_prlimit(
-            Pid::as_raw(pid),
-            limit as _,
-            &lim,
-            result.as_mut_ptr(),
-        ))?;
-        Ok(rlimit_from_libc(result.assume_init()))
-    }
-}
-
-/// Convert a Rust [`Rlimit`] to a C `libc_rlimit`.
-#[cfg(not(any(target_os = "fuchsia", target_os = "redox", target_os = "wasi")))]
-fn rlimit_from_libc(lim: libc_rlimit) -> Rlimit {
-    let current = if lim.rlim_cur == LIBC_RLIM_INFINITY {
-        None
-    } else {
-        Some(lim.rlim_cur.try_into().unwrap())
-    };
-    let maximum = if lim.rlim_max == LIBC_RLIM_INFINITY {
-        None
-    } else {
-        Some(lim.rlim_max.try_into().unwrap())
-    };
-    Rlimit { current, maximum }
-}
-
-/// Convert a C `libc_rlimit` to a Rust `Rlimit`.
-#[cfg(not(any(target_os = "fuchsia", target_os = "redox", target_os = "wasi")))]
-fn rlimit_to_libc(lim: Rlimit) -> io::Result<libc_rlimit> {
-    let Rlimit { current, maximum } = lim;
-    let rlim_cur = match current {
-        Some(r) => r.try_into().map_err(|_e| io::Errno::INVAL)?,
-        None => LIBC_RLIM_INFINITY as _,
-    };
-    let rlim_max = match maximum {
-        Some(r) => r.try_into().map_err(|_e| io::Errno::INVAL)?,
-        None => LIBC_RLIM_INFINITY as _,
-    };
-    Ok(libc_rlimit { rlim_cur, rlim_max })
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-pub(crate) fn wait(waitopts: WaitOptions) -> io::Result<Option<(Pid, WaitStatus)>> {
-    _waitpid(!0, waitopts)
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-pub(crate) fn waitpid(
-    pid: Option<Pid>,
-    waitopts: WaitOptions,
-) -> io::Result<Option<(Pid, WaitStatus)>> {
-    _waitpid(Pid::as_raw(pid), waitopts)
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-pub(crate) fn _waitpid(
-    pid: RawPid,
-    waitopts: WaitOptions,
-) -> io::Result<Option<(Pid, WaitStatus)>> {
-    unsafe {
-        let mut status: c::c_int = 0;
-        let pid = ret_c_int(c::waitpid(pid as _, &mut status, waitopts.bits() as _))?;
-        Ok(RawNonZeroPid::new(pid).map(|non_zero| {
-            (
-                Pid::from_raw_nonzero(non_zero),
-                WaitStatus::new(status as _),
-            )
-        }))
-    }
-}
-
-#[cfg(not(any(target_os = "wasi", target_os = "redox", target_os = "openbsd")))]
-#[inline]
-pub(crate) fn waitid(id: WaitId<'_>, options: WaitidOptions) -> io::Result<Option<WaitidStatus>> {
-    // Get the id to wait on.
-    match id {
-        WaitId::All => _waitid_all(options),
-        WaitId::Pid(pid) => _waitid_pid(pid, options),
-        #[cfg(target_os = "linux")]
-        WaitId::PidFd(fd) => _waitid_pidfd(fd, options),
-        #[cfg(not(target_os = "linux"))]
-        WaitId::__EatLifetime(_) => unreachable!(),
-    }
-}
-
-#[cfg(not(any(target_os = "wasi", target_os = "redox", target_os = "openbsd")))]
-#[inline]
-fn _waitid_all(options: WaitidOptions) -> io::Result<Option<WaitidStatus>> {
-    let mut status = MaybeUninit::<c::siginfo_t>::uninit();
-    unsafe {
-        ret(c::waitid(
-            c::P_ALL,
-            0,
-            status.as_mut_ptr(),
-            options.bits() as _,
-        ))?
-    };
-
-    Ok(unsafe { cvt_waitid_status(status) })
-}
-
-#[cfg(not(any(target_os = "wasi", target_os = "redox", target_os = "openbsd")))]
-#[inline]
-fn _waitid_pid(pid: Pid, options: WaitidOptions) -> io::Result<Option<WaitidStatus>> {
-    let mut status = MaybeUninit::<c::siginfo_t>::uninit();
-    unsafe {
-        ret(c::waitid(
-            c::P_PID,
-            Pid::as_raw(Some(pid)) as _,
-            status.as_mut_ptr(),
-            options.bits() as _,
-        ))?
-    };
-
-    Ok(unsafe { cvt_waitid_status(status) })
-}
-
-#[cfg(target_os = "linux")]
-#[inline]
-fn _waitid_pidfd(fd: BorrowedFd<'_>, options: WaitidOptions) -> io::Result<Option<WaitidStatus>> {
-    let mut status = MaybeUninit::<c::siginfo_t>::uninit();
-    unsafe {
-        ret(c::waitid(
-            c::P_PIDFD,
-            fd.as_raw_fd() as _,
-            status.as_mut_ptr(),
-            options.bits() as _,
-        ))?
-    };
-
-    Ok(unsafe { cvt_waitid_status(status) })
-}
-
-/// Convert a `siginfo_t` to a `WaitidStatus`.
-///
-/// # Safety
-///
-/// The caller must ensure that `status` is initialized and that `waitid`
-/// returned successfully.
-#[cfg(not(any(target_os = "wasi", target_os = "redox", target_os = "openbsd")))]
-#[inline]
-unsafe fn cvt_waitid_status(status: MaybeUninit<c::siginfo_t>) -> Option<WaitidStatus> {
-    let status = status.assume_init();
-    if status.si_signo == 0 {
-        None
-    } else {
-        Some(WaitidStatus(status))
-    }
-}
-
-#[inline]
-pub(crate) fn exit_group(code: c::c_int) -> ! {
-    // `_exit` and `_Exit` are the same; it's just a matter of which ones
-    // the libc bindings expose.
-    #[cfg(any(target_os = "wasi", target_os = "solid"))]
-    unsafe {
-        c::_Exit(code)
-    }
-    #[cfg(unix)]
-    unsafe {
-        c::_exit(code)
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-pub(crate) fn setsid() -> io::Result<Pid> {
-    unsafe {
-        let pid = ret_c_int(c::setsid())?;
-        debug_assert_ne!(pid, 0);
-        Ok(Pid::from_raw_nonzero(RawNonZeroPid::new_unchecked(pid)))
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-pub(crate) fn kill_process(pid: Pid, sig: Signal) -> io::Result<()> {
-    unsafe { ret(c::kill(pid.as_raw_nonzero().get(), sig as i32)) }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-pub(crate) fn kill_process_group(pid: Pid, sig: Signal) -> io::Result<()> {
-    unsafe {
-        ret(c::kill(
-            pid.as_raw_nonzero().get().wrapping_neg(),
-            sig as i32,
-        ))
-    }
-}
-
-#[cfg(not(target_os = "wasi"))]
-#[inline]
-pub(crate) fn kill_current_process_group(sig: Signal) -> io::Result<()> {
-    unsafe { ret(c::kill(0, sig as i32)) }
-}
-
-#[cfg(any(target_os = "android", target_os = "linux"))]
-#[inline]
-pub(crate) unsafe fn prctl(
-    option: c::c_int,
-    arg2: *mut c::c_void,
-    arg3: *mut c::c_void,
-    arg4: *mut c::c_void,
-    arg5: *mut c::c_void,
-) -> io::Result<c::c_int> {
-    ret_c_int(c::prctl(option, arg2, arg3, arg4, arg5))
-}
-
-#[cfg(freebsdlike)]
-#[inline]
-pub(crate) unsafe fn procctl(
-    idtype: c::idtype_t,
-    id: c::id_t,
-    option: c::c_int,
-    data: *mut c::c_void,
-) -> io::Result<()> {
-    ret(c::procctl(idtype, id, option, data))
-}
-
-#[cfg(target_os = "linux")]
-pub(crate) fn pidfd_open(pid: Pid, flags: PidfdFlags) -> io::Result<OwnedFd> {
-    unsafe {
-        syscall_ret_owned_fd(libc::syscall(
-            c::SYS_pidfd_open,
-            pid.as_raw_nonzero().get(),
-            flags.bits(),
-        ))
-    }
-}