diff --git a/src/header/signal/mod.rs b/src/header/signal/mod.rs
index 3645d812e09cfd6550533d8df6a7d8d95c7b2e2c..c015f3f9cb4587cea91d2c9dda8c5565bacca522 100644
--- a/src/header/signal/mod.rs
+++ b/src/header/signal/mod.rs
@@ -107,7 +107,9 @@ pub unsafe extern "C" fn sigaction(
act: *const sigaction,
oact: *mut sigaction,
) -> c_int {
- Sys::sigaction(sig, act.as_ref(), oact.as_mut()).map(|()| 0).or_minus_one_errno()
+ Sys::sigaction(sig, act.as_ref(), oact.as_mut())
+ .map(|()| 0)
+ .or_minus_one_errno()
}
#[no_mangle]
@@ -216,11 +218,6 @@ pub unsafe extern "C" fn sigismember(set: *const sigset_t, signo: c_int) -> c_in
0
}
-extern "C" {
- // Defined in assembly inside platform/x/mod.rs
- fn __restore_rt();
-}
-
#[no_mangle]
pub extern "C" fn signal(
sig: c_int,
@@ -228,8 +225,8 @@ pub extern "C" fn signal(
) -> Option<extern "C" fn(c_int)> {
let sa = sigaction {
sa_handler: func,
- sa_flags: SA_RESTART as c_ulong,
- sa_restorer: Some(__restore_rt),
+ sa_flags: SA_RESTART as _,
+ sa_restorer: None, // set by platform if applicable
sa_mask: sigset_t::default(),
};
let mut old_sa = mem::MaybeUninit::uninit();
@@ -279,7 +276,8 @@ pub unsafe extern "C" fn sigprocmask(
}
Ok(0)
- })().or_minus_one_errno()
+ })()
+ .or_minus_one_errno()
}
#[no_mangle]
@@ -318,7 +316,7 @@ pub unsafe extern "C" fn sigset(
let mut sa = sigaction {
sa_handler: func,
sa_flags: 0 as c_ulong,
- sa_restorer: Some(__restore_rt),
+ sa_restorer: None, // set by platform if applicable
sa_mask: sigset_t::default(),
};
sigemptyset(&mut sa.sa_mask);
diff --git a/src/header/signal/redox.rs b/src/header/signal/redox.rs
index f21c168e47b01e0e18b01c525b6403dbb4959079..8e878dda0a0bdda393ed725939d3af1b54f30902 100644
--- a/src/header/signal/redox.rs
+++ b/src/header/signal/redox.rs
@@ -1,38 +1,5 @@
use core::arch::global_asm;
-// x8 is register, 119 is SIGRETURN
-#[cfg(target_arch = "aarch64")]
-global_asm!(
- "
- .global __restore_rt
- __restore_rt:
- mov x8, #119
- svc 0
-"
-);
-// Needs to be defined in assembly because it can't have a function prologue
-// eax is register, 119 is SIGRETURN
-#[cfg(target_arch = "x86")]
-global_asm!(
- "
- .global __restore_rt
- __restore_rt:
- mov eax, 119
- int 0x80
-"
-);
-// Needs to be defined in assembly because it can't have a function prologue
-// rax is register, 119 is SIGRETURN
-#[cfg(target_arch = "x86_64")]
-global_asm!(
- "
- .global __restore_rt
- __restore_rt:
- mov rax, 119
- syscall
-"
-);
-
pub const SIGHUP: usize = 1;
pub const SIGINT: usize = 2;
pub const SIGQUIT: usize = 3;
diff --git a/src/ld_so/tcb.rs b/src/ld_so/tcb.rs
index 048c52ae8bec6d3e5dd86d36ad971906ac7d5256..efee9ce9abc0f71c00fd882f1d821a5f12f86355 100644
--- a/src/ld_so/tcb.rs
+++ b/src/ld_so/tcb.rs
@@ -1,6 +1,13 @@
use alloc::vec::Vec;
+use core::{
+ arch::asm,
+ cell::UnsafeCell,
+ mem,
+ ops::{Deref, DerefMut},
+ ptr, slice,
+ sync::atomic::AtomicBool,
+};
use generic_rt::GenericTcb;
-use core::{arch::asm, cell::UnsafeCell, mem, ops::{Deref, DerefMut}, ptr, slice, sync::atomic::AtomicBool};
use goblin::error::{Error, Result};
use super::ExpectTlsFree;
diff --git a/src/platform/linux/signal.rs b/src/platform/linux/signal.rs
index 86b4efb14c95518de8be072a29671f7a6334b747..0fbc8493e9e4f010440999809a37b5f0d79e9c2c 100644
--- a/src/platform/linux/signal.rs
+++ b/src/platform/linux/signal.rs
@@ -4,12 +4,14 @@ use super::{
super::{types::*, PalSignal},
e, e_raw, Sys,
};
-use crate::header::{
- signal::{sigaction, siginfo_t, sigset_t, stack_t, NSIG},
- sys_time::itimerval,
- time::timespec,
+use crate::{
+ header::{
+ signal::{sigaction, siginfo_t, sigset_t, stack_t, NSIG, SA_RESTORER},
+ sys_time::itimerval,
+ time::timespec,
+ },
+ pthread::Errno,
};
-use crate::pthread::Errno;
impl PalSignal for Sys {
unsafe fn getitimer(which: c_int, out: *mut itimerval) -> c_int {
@@ -37,16 +39,30 @@ impl PalSignal for Sys {
e(syscall!(SETITIMER, which, new, old)) as c_int
}
- fn sigaction(sig: c_int, act: Option<&sigaction>, oact: Option<&mut sigaction>) -> Result<(), Errno> {
+ fn sigaction(
+ sig: c_int,
+ act: Option<&sigaction>,
+ oact: Option<&mut sigaction>,
+ ) -> Result<(), Errno> {
+ extern "C" {
+ fn __restore_rt();
+ }
+ let act = act.map(|act| {
+ let mut act_clone = act.clone();
+ act_clone.sa_flags |= SA_RESTORER as c_ulong;
+ act_clone.sa_restorer = Some(__restore_rt);
+ act_clone
+ });
e_raw(unsafe {
syscall!(
RT_SIGACTION,
sig,
- act.map_or_else(core::ptr::null, |x| x as *const _),
+ act.as_ref().map_or_else(core::ptr::null, |x| x as *const _),
oact.map_or_else(core::ptr::null_mut, |x| x as *mut _),
mem::size_of::<sigset_t>()
)
- }).map(|_| ())
+ })
+ .map(|_| ())
}
unsafe fn sigaltstack(ss: *const stack_t, old_ss: *mut stack_t) -> c_int {
@@ -57,7 +73,11 @@ impl PalSignal for Sys {
e(syscall!(RT_SIGPENDING, set, NSIG / 8)) as c_int
}
- fn sigprocmask(how: c_int, set: Option<&sigset_t>, oset: Option<&mut sigset_t>) -> Result<(), Errno> {
+ fn sigprocmask(
+ how: c_int,
+ set: Option<&sigset_t>,
+ oset: Option<&mut sigset_t>,
+ ) -> Result<(), Errno> {
e_raw(unsafe {
syscall!(
RT_SIGPROCMASK,
@@ -66,7 +86,8 @@ impl PalSignal for Sys {
oset.map_or_else(core::ptr::null_mut, |x| x as *mut _),
mem::size_of::<sigset_t>()
)
- }).map(|_| ())
+ })
+ .map(|_| ())
}
unsafe fn sigsuspend(set: *const sigset_t) -> c_int {
diff --git a/src/platform/pal/signal.rs b/src/platform/pal/signal.rs
index eeb5031a76394887f7350a1b3ebbd6a91d190c0a..d85c35d955a0ecc98582006100a5a253668979da 100644
--- a/src/platform/pal/signal.rs
+++ b/src/platform/pal/signal.rs
@@ -1,9 +1,12 @@
use super::super::{types::*, Pal};
-use crate::{header::{
- signal::{sigaction, siginfo_t, sigset_t, stack_t},
- sys_time::itimerval,
- time::timespec,
-}, pthread::Errno};
+use crate::{
+ header::{
+ signal::{sigaction, siginfo_t, sigset_t, stack_t},
+ sys_time::itimerval,
+ time::timespec,
+ },
+ pthread::Errno,
+};
pub trait PalSignal: Pal {
unsafe fn getitimer(which: c_int, out: *mut itimerval) -> c_int;
@@ -16,13 +19,21 @@ pub trait PalSignal: Pal {
unsafe fn setitimer(which: c_int, new: *const itimerval, old: *mut itimerval) -> c_int;
- fn sigaction(sig: c_int, act: Option<&sigaction>, oact: Option<&mut sigaction>) -> Result<(), Errno>;
+ fn sigaction(
+ sig: c_int,
+ act: Option<&sigaction>,
+ oact: Option<&mut sigaction>,
+ ) -> Result<(), Errno>;
unsafe fn sigaltstack(ss: *const stack_t, old_ss: *mut stack_t) -> c_int;
unsafe fn sigpending(set: *mut sigset_t) -> c_int;
- fn sigprocmask(how: c_int, set: Option<&sigset_t>, oset: Option<&mut sigset_t>) -> Result<(), Errno>;
+ fn sigprocmask(
+ how: c_int,
+ set: Option<&sigset_t>,
+ oset: Option<&mut sigset_t>,
+ ) -> Result<(), Errno>;
unsafe fn sigsuspend(set: *const sigset_t) -> c_int;
diff --git a/src/platform/redox/libredox.rs b/src/platform/redox/libredox.rs
index a1789e24cef1caa536980c7e6e04e35b8f8f3942..821efb0bb010690a694fb1bddf55949daf891dac 100644
--- a/src/platform/redox/libredox.rs
+++ b/src/platform/redox/libredox.rs
@@ -4,7 +4,11 @@ use syscall::{Error, Result, WaitFlags, EMFILE};
use crate::{
header::{
- errno::EINVAL, signal::{sigaction, SIG_BLOCK, SIG_SETMASK, SIG_UNBLOCK}, sys_stat::UTIME_NOW, sys_uio::iovec, time::timespec,
+ errno::EINVAL,
+ signal::{sigaction, SIG_BLOCK, SIG_SETMASK, SIG_UNBLOCK},
+ sys_stat::UTIME_NOW,
+ sys_uio::iovec,
+ time::timespec,
},
platform::{types::*, PalSignal},
};
@@ -251,7 +255,11 @@ pub unsafe extern "C" fn redox_sigaction_v1(
new: *const sigaction,
old: *mut sigaction,
) -> RawResult {
- Error::mux(Sys::sigaction(signal as c_int, new.as_ref(), old.as_mut()).map(|()| 0).map_err(Into::into))
+ Error::mux(
+ Sys::sigaction(signal as c_int, new.as_ref(), old.as_mut())
+ .map(|()| 0)
+ .map_err(Into::into),
+ )
}
#[no_mangle]
@@ -260,7 +268,11 @@ pub unsafe extern "C" fn redox_sigprocmask_v1(
new: *const u64,
old: *mut u64,
) -> RawResult {
- Error::mux(Sys::sigprocmask(how as c_int, new.as_ref(), old.as_mut()).map(|()| 0).map_err(Into::into))
+ Error::mux(
+ Sys::sigprocmask(how as c_int, new.as_ref(), old.as_mut())
+ .map(|()| 0)
+ .map_err(Into::into),
+ )
}
#[no_mangle]
pub unsafe extern "C" fn redox_mmap_v1(
diff --git a/src/platform/redox/signal.rs b/src/platform/redox/signal.rs
index 59d0390eda9f536c88f6a01effb118b83451518b..50f8f48a24b533371500c1c03b25b789e15364aa 100644
--- a/src/platform/redox/signal.rs
+++ b/src/platform/redox/signal.rs
@@ -9,11 +9,15 @@ use super::{
use crate::{
header::{
errno::{EINVAL, ENOSYS},
- signal::{sigaction, siginfo_t, sigset_t, stack_t, SA_SIGINFO, SIG_BLOCK, SIG_DFL, SIG_IGN, SIG_SETMASK, SIG_UNBLOCK},
+ signal::{
+ sigaction, siginfo_t, sigset_t, stack_t, SA_SIGINFO, SIG_BLOCK, SIG_DFL, SIG_IGN,
+ SIG_SETMASK, SIG_UNBLOCK,
+ },
sys_time::{itimerval, ITIMER_REAL},
time::timespec,
},
- platform::ERRNO, pthread::Errno,
+ platform::ERRNO,
+ pthread::Errno,
};
impl PalSignal for Sys {
@@ -105,7 +109,11 @@ impl PalSignal for Sys {
0
}
- fn sigaction(sig: c_int, c_act: Option<&sigaction>, c_oact: Option<&mut sigaction>) -> Result<(), Errno> {
+ fn sigaction(
+ sig: c_int,
+ c_act: Option<&sigaction>,
+ c_oact: Option<&mut sigaction>,
+ ) -> Result<(), Errno> {
let sig = u8::try_from(sig).map_err(|_| syscall::Error::new(syscall::EINVAL))?;
let new_action = c_act.map(|c_act| {
@@ -118,9 +126,13 @@ impl PalSignal for Sys {
} else {
SigactionKind::Handled {
handler: if c_act.sa_flags & crate::header::signal::SA_SIGINFO as u64 != 0 {
- SignalHandler { sigaction: unsafe { core::mem::transmute(c_act.sa_handler) } }
+ SignalHandler {
+ sigaction: unsafe { core::mem::transmute(c_act.sa_handler) },
+ }
} else {
- SignalHandler { handler: c_act.sa_handler }
+ SignalHandler {
+ handler: c_act.sa_handler,
+ }
},
}
};
@@ -173,7 +185,11 @@ impl PalSignal for Sys {
-1
}
- fn sigprocmask(how: c_int, set: Option<&sigset_t>, oset: Option<&mut sigset_t>) -> Result<(), Errno> {
+ fn sigprocmask(
+ how: c_int,
+ set: Option<&sigset_t>,
+ oset: Option<&mut sigset_t>,
+ ) -> Result<(), Errno> {
Ok(match how {
SIG_SETMASK => redox_rt::signal::set_sigmask(set.copied(), oset)?,
SIG_BLOCK => redox_rt::signal::or_sigmask(set.copied(), oset)?,