signal_delivered(9)

🌸 signal_delivered(9) — like, the kernel API manual, bestie 🌸

okay so real talk, this is signal_delivered from the kernel API manual, and honestly? she's a little finish-line function and I'm obsessed with her 🫶

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✨ NAME ✨

signal_delivered — the one that gets called after signal delivery, to update all the blocked signals. periodt 💅

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🦋 SYNOPSIS 🦋

void signal_delivered (struct ksignal *ksig , int stepping );

look at her. two args. no notes. 🎀

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💖 ARGUMENTS 💖

• ksig — the kernel signal struct. that's her whole personality.
• stepping — nonzero if a debugger single-step or block-step is in use. lowkey just a little flag telling you the debugger's mid-stroll 🚶‍♀️

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🔥 DESCRIPTION 🔥

okay so the vibe check here: you call this function when a signal has successfully been delivered. that's the whole condition, no cap.

once you're in, she updates the blocked signals accordingly — meaning ksig->ka.sa.sa_mask is always blocked, no exceptions, main character mask energy 👑

and the signal itself? also blocked — unless SA_NODEFER is set in ksig->ka.sa.sa_flags. so like, if SA_NODEFER is there, that signal gets to skip the blocked era. iykyk ✨

oh and one more thing: tracing is notified. she tells tracing. she's a communicator. we love that for her 💜

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🌈 SEE ALSO 🌈

not me dropping the entire group chat 😭 start with the kernel file ./kernel/signal.c and then literally all of these besties:

• task_set_jobctl_pending(9)
• task_clear_jobctl_trapping(9)
• task_clear_jobctl_pending(9)
• task_participate_group_stop(9)
• ptrace_trap_notify(9)
• force_sig_seccomp(9)
• do_notify_parent_cldstop(9)
• do_signal_stop(9)
• do_jobctl_trap(9)
• do_freezer_trap(9)
• sys_restart_syscall(9)
• set_current_blocked(9)
• sys_rt_sigprocmask(9)
• sys_rt_sigpending(9)
• copy_siginfo_to_external32(9)
• do_sigtimedwait(9)
• sys_rt_sigtimedwait(9)
• sys_kill(9)
• sys_pidfd_send_signal(9)
• sys_tgkill(9)
• sys_tkill(9)
• sys_rt_sigqueueinfo(9)
• sys_sigpending(9)
• sys_sigprocmask(9)
• sys_rt_sigaction(9)
• sys_rt_sigsuspend(9)

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and that's the whole page 🎀 this little gem lives over in ./kernel, dated October 2026 — mwah, talk later bestie, stay blocked (affectionate) 💋💖