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Never queue an ignored signal

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This commit is contained in:
Ruihan Li
2025-05-12 11:22:47 +08:00
committed by Jianfeng Jiang
parent 3e32a38316
commit 0661a0656b
7 changed files with 164 additions and 31 deletions
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13
kernel/src/syscall/rt_sigaction.rs
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@ -8,7 +8,7 @@ use crate::{
signal::{
c_types::sigaction_t,
constants::{SIGKILL, SIGSTOP},
sig_action::{SigAction, SigDefaultAction},
sig_action::SigAction,
sig_mask::SigSet,
sig_num::SigNum,
},
@ -77,15 +77,8 @@ pub fn sys_rt_sigaction(
// (for example, SIGCHLD), shall cause the pending signal to
// be discarded, whether or not it is blocked
fn discard_signals_if_ignored(ctx: &Context, signum: SigNum, sig_action: &SigAction) {
match sig_action {
SigAction::Dfl => {
let default_action = SigDefaultAction::from_signum(signum);
if default_action != SigDefaultAction::Ign {
return;
}
}
SigAction::Ign => {}
SigAction::User { .. } => return,
if !sig_action.will_ignore(signum) {
return;
}
let mask = SigSet::new_full() - signum;