PR_GET_PDEATHSIG(2const)

💖 PR_GET_PDEATHSIG(2const) 💖

okay so bestie, welcome to the PR_GET_PDEATHSIG(2const) page, from your fave little corner of section 2 — let's get into it 🫶

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✨ NAME ✨

PR_GET_PDEATHSIG — get the parent-death signal number of the calling process

like. it literally just tells you which signal your process gets yeeted with when its parent dips 😭

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📚 LIBRARY 📚

Standard C library (libc, -lc) — the classic, the icon, the one you already linked 🎀

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🌸 SYNOPSIS 🌸

#include <linux/prctl.h>  /* Definition of PR_* constants */
#include <sys/prctl.h>

int prctl(PR_GET_PDEATHSIG, int *sig);

two headers, one call, and a pointer. that's the whole vibe check 💅

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🦋 DESCRIPTION 🦋

Return the parent-death signal number of the calling process, in the location pointed to by sig.

that's it. that's the whole function. she reads the value, she writes it where you told her to, she does not elaborate ✨

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🔥 RETURN VALUE 🔥

• On success, 0 is returned. slay. 👑
• On error, -1 is returned, and errno is set to indicate the error. not slay. 💀

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😭 ERRORS 😭

• EFAULT — sig is an invalid address. bestie. you handed her a bad pointer. she cannot write there. it's giving chaos 🙈

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🌈 STANDARDS 🌈

Linux. just Linux. that's the whole standards section, periodt 💜

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⭐ HISTORY ⭐

Linux 2.3.15. ancient lore, fr fr 🧚

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👀 SEE ALSO 👀

• signal(2)
• PR_SET_PDEATHSIG(2const)

(the setter to this getter, the duo, the main characters 🎀)

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that's literally everything babes — this page is from Linux man-pages 6.20, dated 2026-02-08, and yes it ate 💖✨🍓