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Downgrade context sigcontrol to read

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This commit is contained in:
Wildan M
2026-04-29 21:48:31 +07:00
parent ba28216ae8
commit 844f393ae8
7 changed files with 25 additions and 17 deletions
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src/context/context.rs
+5 -6
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@@ -453,12 +453,11 @@ impl Context {
let kstack = self.kstack.as_ref()?;
Some(unsafe { &mut *kstack.initial_top().sub(size_of::<InterruptStack>()).cast() })
}
pub fn sigcontrol(&mut self) -> Option<(&Sigcontrol, &SigProcControl, &mut SignalState)> {
Some(Self::sigcontrol_raw(self.sig.as_mut()?))
pub fn sigcontrol(&self) -> Option<(&Sigcontrol, &SigProcControl, &SignalState)> {
let (for_thread, for_proc) = Self::sigcontrol_raw(self.sig.as_ref()?);
Some((for_thread, for_proc, self.sig.as_ref()?))
}
pub fn sigcontrol_raw(
sig: &mut SignalState,
) -> (&Sigcontrol, &SigProcControl, &mut SignalState) {
pub fn sigcontrol_raw(sig: &SignalState) -> (&Sigcontrol, &SigProcControl) {
let check = |off| {
assert_eq!(usize::from(off) % align_of::<usize>(), 0);
assert!(usize::from(off).saturating_add(size_of::<Sigcontrol>()) < PAGE_SIZE);
@@ -475,7 +474,7 @@ impl Context {
.byte_add(usize::from(sig.procctl_off))
};
(for_thread, for_proc, sig)
(for_thread, for_proc)
}
pub fn caller_ctx(&self) -> CallerCtx {
CallerCtx {