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-rw-r--r--vendor/rustix/src/backend/linux_raw/thread/syscalls.rs347
1 files changed, 0 insertions, 347 deletions
diff --git a/vendor/rustix/src/backend/linux_raw/thread/syscalls.rs b/vendor/rustix/src/backend/linux_raw/thread/syscalls.rs
deleted file mode 100644
index 0095eed..0000000
--- a/vendor/rustix/src/backend/linux_raw/thread/syscalls.rs
+++ /dev/null
@@ -1,347 +0,0 @@
-//! linux_raw syscalls supporting `rustix::thread`.
-//!
-//! # Safety
-//!
-//! See the `rustix::backend` module documentation for details.
-#![allow(unsafe_code, clippy::undocumented_unsafe_blocks)]
-
-use crate::backend::c;
-use crate::backend::conv::{
- by_mut, by_ref, c_int, c_uint, ret, ret_c_int, ret_c_int_infallible, ret_usize,
- slice_just_addr, slice_just_addr_mut, zero,
-};
-use crate::fd::BorrowedFd;
-use crate::io;
-use crate::pid::Pid;
-use crate::thread::{ClockId, FutexFlags, FutexOperation, NanosleepRelativeResult, Timespec};
-use core::mem::MaybeUninit;
-#[cfg(target_pointer_width = "32")]
-use linux_raw_sys::general::timespec as __kernel_old_timespec;
-use linux_raw_sys::general::{__kernel_timespec, TIMER_ABSTIME};
-
-#[inline]
-pub(crate) fn clock_nanosleep_relative(
- id: ClockId,
- req: &__kernel_timespec,
-) -> NanosleepRelativeResult {
- #[cfg(target_pointer_width = "32")]
- unsafe {
- let mut rem = MaybeUninit::<__kernel_timespec>::uninit();
- match ret(syscall!(
- __NR_clock_nanosleep_time64,
- id,
- c_int(0),
- by_ref(req),
- &mut rem
- ))
- .or_else(|err| {
- // See the comments in `rustix_clock_gettime_via_syscall` about
- // emulation.
- if err == io::Errno::NOSYS {
- clock_nanosleep_relative_old(id, req, &mut rem)
- } else {
- Err(err)
- }
- }) {
- Ok(()) => NanosleepRelativeResult::Ok,
- Err(io::Errno::INTR) => NanosleepRelativeResult::Interrupted(rem.assume_init()),
- Err(err) => NanosleepRelativeResult::Err(err),
- }
- }
- #[cfg(target_pointer_width = "64")]
- unsafe {
- let mut rem = MaybeUninit::<__kernel_timespec>::uninit();
- match ret(syscall!(
- __NR_clock_nanosleep,
- id,
- c_int(0),
- by_ref(req),
- &mut rem
- )) {
- Ok(()) => NanosleepRelativeResult::Ok,
- Err(io::Errno::INTR) => NanosleepRelativeResult::Interrupted(rem.assume_init()),
- Err(err) => NanosleepRelativeResult::Err(err),
- }
- }
-}
-
-#[cfg(target_pointer_width = "32")]
-unsafe fn clock_nanosleep_relative_old(
- id: ClockId,
- req: &__kernel_timespec,
- rem: &mut MaybeUninit<__kernel_timespec>,
-) -> io::Result<()> {
- let old_req = __kernel_old_timespec {
- tv_sec: req.tv_sec.try_into().map_err(|_| io::Errno::INVAL)?,
- tv_nsec: req.tv_nsec.try_into().map_err(|_| io::Errno::INVAL)?,
- };
- let mut old_rem = MaybeUninit::<__kernel_old_timespec>::uninit();
- ret(syscall!(
- __NR_clock_nanosleep,
- id,
- c_int(0),
- by_ref(&old_req),
- &mut old_rem
- ))?;
- let old_rem = old_rem.assume_init();
- rem.write(__kernel_timespec {
- tv_sec: old_rem.tv_sec.into(),
- tv_nsec: old_rem.tv_nsec.into(),
- });
- Ok(())
-}
-
-#[inline]
-pub(crate) fn clock_nanosleep_absolute(id: ClockId, req: &__kernel_timespec) -> io::Result<()> {
- #[cfg(target_pointer_width = "32")]
- unsafe {
- ret(syscall_readonly!(
- __NR_clock_nanosleep_time64,
- id,
- c_uint(TIMER_ABSTIME),
- by_ref(req),
- zero()
- ))
- .or_else(|err| {
- // See the comments in `rustix_clock_gettime_via_syscall` about
- // emulation.
- if err == io::Errno::NOSYS {
- clock_nanosleep_absolute_old(id, req)
- } else {
- Err(err)
- }
- })
- }
- #[cfg(target_pointer_width = "64")]
- unsafe {
- ret(syscall_readonly!(
- __NR_clock_nanosleep,
- id,
- c_uint(TIMER_ABSTIME),
- by_ref(req),
- zero()
- ))
- }
-}
-
-#[cfg(target_pointer_width = "32")]
-unsafe fn clock_nanosleep_absolute_old(id: ClockId, req: &__kernel_timespec) -> io::Result<()> {
- let old_req = __kernel_old_timespec {
- tv_sec: req.tv_sec.try_into().map_err(|_| io::Errno::INVAL)?,
- tv_nsec: req.tv_nsec.try_into().map_err(|_| io::Errno::INVAL)?,
- };
- ret(syscall_readonly!(
- __NR_clock_nanosleep,
- id,
- c_int(0),
- by_ref(&old_req),
- zero()
- ))
-}
-
-#[inline]
-pub(crate) fn nanosleep(req: &__kernel_timespec) -> NanosleepRelativeResult {
- #[cfg(target_pointer_width = "32")]
- unsafe {
- let mut rem = MaybeUninit::<__kernel_timespec>::uninit();
- match ret(syscall!(
- __NR_clock_nanosleep_time64,
- ClockId::Realtime,
- c_int(0),
- by_ref(req),
- &mut rem
- ))
- .or_else(|err| {
- // See the comments in `rustix_clock_gettime_via_syscall` about
- // emulation.
- if err == io::Errno::NOSYS {
- nanosleep_old(req, &mut rem)
- } else {
- Err(err)
- }
- }) {
- Ok(()) => NanosleepRelativeResult::Ok,
- Err(io::Errno::INTR) => NanosleepRelativeResult::Interrupted(rem.assume_init()),
- Err(err) => NanosleepRelativeResult::Err(err),
- }
- }
- #[cfg(target_pointer_width = "64")]
- unsafe {
- let mut rem = MaybeUninit::<__kernel_timespec>::uninit();
- match ret(syscall!(__NR_nanosleep, by_ref(req), &mut rem)) {
- Ok(()) => NanosleepRelativeResult::Ok,
- Err(io::Errno::INTR) => NanosleepRelativeResult::Interrupted(rem.assume_init()),
- Err(err) => NanosleepRelativeResult::Err(err),
- }
- }
-}
-
-#[cfg(target_pointer_width = "32")]
-unsafe fn nanosleep_old(
- req: &__kernel_timespec,
- rem: &mut MaybeUninit<__kernel_timespec>,
-) -> io::Result<()> {
- let old_req = __kernel_old_timespec {
- tv_sec: req.tv_sec.try_into().map_err(|_| io::Errno::INVAL)?,
- tv_nsec: req.tv_nsec.try_into().map_err(|_| io::Errno::INVAL)?,
- };
- let mut old_rem = MaybeUninit::<__kernel_old_timespec>::uninit();
- ret(syscall!(__NR_nanosleep, by_ref(&old_req), &mut old_rem))?;
- let old_rem = old_rem.assume_init();
- rem.write(__kernel_timespec {
- tv_sec: old_rem.tv_sec.into(),
- tv_nsec: old_rem.tv_nsec.into(),
- });
- Ok(())
-}
-
-#[inline]
-pub(crate) fn gettid() -> Pid {
- unsafe {
- let tid = ret_c_int_infallible(syscall_readonly!(__NR_gettid));
- Pid::from_raw_unchecked(tid)
- }
-}
-
-// TODO: This could be de-multiplexed.
-#[inline]
-pub(crate) unsafe fn futex(
- uaddr: *mut u32,
- op: FutexOperation,
- flags: FutexFlags,
- val: u32,
- utime: *const Timespec,
- uaddr2: *mut u32,
- val3: u32,
-) -> io::Result<usize> {
- #[cfg(target_pointer_width = "32")]
- {
- ret_usize(syscall!(
- __NR_futex_time64,
- uaddr,
- (op, flags),
- c_uint(val),
- utime,
- uaddr2,
- c_uint(val3)
- ))
- .or_else(|err| {
- // See the comments in `rustix_clock_gettime_via_syscall` about
- // emulation.
- if err == io::Errno::NOSYS {
- futex_old(uaddr, op, flags, val, utime, uaddr2, val3)
- } else {
- Err(err)
- }
- })
- }
- #[cfg(target_pointer_width = "64")]
- ret_usize(syscall!(
- __NR_futex,
- uaddr,
- (op, flags),
- c_uint(val),
- utime,
- uaddr2,
- c_uint(val3)
- ))
-}
-
-#[cfg(target_pointer_width = "32")]
-unsafe fn futex_old(
- uaddr: *mut u32,
- op: FutexOperation,
- flags: FutexFlags,
- val: u32,
- utime: *const Timespec,
- uaddr2: *mut u32,
- val3: u32,
-) -> io::Result<usize> {
- let old_utime = __kernel_old_timespec {
- tv_sec: (*utime).tv_sec.try_into().map_err(|_| io::Errno::INVAL)?,
- tv_nsec: (*utime).tv_nsec.try_into().map_err(|_| io::Errno::INVAL)?,
- };
- ret_usize(syscall!(
- __NR_futex,
- uaddr,
- (op, flags),
- c_uint(val),
- by_ref(&old_utime),
- uaddr2,
- c_uint(val3)
- ))
-}
-
-#[inline]
-pub(crate) fn setns(fd: BorrowedFd<'_>, nstype: c::c_int) -> io::Result<c::c_int> {
- unsafe { ret_c_int(syscall_readonly!(__NR_setns, fd, c_int(nstype))) }
-}
-
-#[inline]
-pub(crate) fn unshare(flags: crate::thread::UnshareFlags) -> io::Result<()> {
- unsafe { ret(syscall_readonly!(__NR_unshare, flags)) }
-}
-
-#[inline]
-pub(crate) fn capget(
- header: &mut linux_raw_sys::general::__user_cap_header_struct,
- data: &mut [MaybeUninit<linux_raw_sys::general::__user_cap_data_struct>],
-) -> io::Result<()> {
- unsafe {
- ret(syscall!(
- __NR_capget,
- by_mut(header),
- slice_just_addr_mut(data)
- ))
- }
-}
-
-#[inline]
-pub(crate) fn capset(
- header: &mut linux_raw_sys::general::__user_cap_header_struct,
- data: &[linux_raw_sys::general::__user_cap_data_struct],
-) -> io::Result<()> {
- unsafe { ret(syscall!(__NR_capset, by_mut(header), slice_just_addr(data))) }
-}
-
-#[inline]
-pub(crate) fn setuid_thread(uid: crate::ugid::Uid) -> io::Result<()> {
- unsafe { ret(syscall_readonly!(__NR_setuid, uid)) }
-}
-
-#[inline]
-pub(crate) fn setresuid_thread(
- ruid: crate::ugid::Uid,
- euid: crate::ugid::Uid,
- suid: crate::ugid::Uid,
-) -> io::Result<()> {
- #[cfg(any(target_arch = "x86", target_arch = "arm", target_arch = "sparc"))]
- unsafe {
- ret(syscall_readonly!(__NR_setresuid32, ruid, euid, suid))
- }
- #[cfg(not(any(target_arch = "x86", target_arch = "arm", target_arch = "sparc")))]
- unsafe {
- ret(syscall_readonly!(__NR_setresuid, ruid, euid, suid))
- }
-}
-
-#[inline]
-pub(crate) fn setgid_thread(gid: crate::ugid::Gid) -> io::Result<()> {
- unsafe { ret(syscall_readonly!(__NR_setgid, gid)) }
-}
-
-#[inline]
-pub(crate) fn setresgid_thread(
- rgid: crate::ugid::Gid,
- egid: crate::ugid::Gid,
- sgid: crate::ugid::Gid,
-) -> io::Result<()> {
- #[cfg(any(target_arch = "x86", target_arch = "arm", target_arch = "sparc"))]
- unsafe {
- ret(syscall_readonly!(__NR_setresgid32, rgid, egid, sgid))
- }
- #[cfg(not(any(target_arch = "x86", target_arch = "arm", target_arch = "sparc")))]
- unsafe {
- ret(syscall_readonly!(__NR_setresgid, rgid, egid, sgid))
- }
-}
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