uprobe_apply(9)

💅 uprobe_apply(9) — like, the Kernel API Manual, section 9, bestie ✨

okay so picture this: you're deep in the Kernel API Manual (section 9, yes that one) and you find uprobe_apply. She's a little function, she's got main character energy, and she's here to add or remove breakpoints according to @uc->filter. Obsessed 💖

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✨ NAME ✨

uprobe_apply — add or remove the breakpoints according to @uc->filter 🎯

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🦋 SYNOPSIS 🦋

int uprobe_apply (struct uprobe *uprobe , struct uprobe_consumer *uc ,
       bool add );

like, that's her. that's the whole vibe ✨

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🎀 ARGUMENTS 🎀

• uprobe — the uprobe which "owns" the breakpoint 👑 she's the one holding the keys, no cap.
• uc — the consumer which wants to add more or remove some breakpoints 🫶 this is the one making requests.
• add — literally just add or remove the breakpoints 💅 she does what she says on the tin.

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🌸 RETURN 🌸

0 on success or a negative error code 😭 (so if it's negative, something did not slay).

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🌈 SEE ALSO 🌈

• the Kernel file ./kernel/events/uprobes.c 🧚
• is_swbp_insn(9)
• is_trap_insn(9)
• set_swbp(9)
• set_orig_insn(9)
• uprobe_unregister_nosync(9)
• uprobe_register(9)
• uprobe_get_swbp_addr(9)

all of them, together, a whole friend group of kernel functions 🫶 go read them, iykyk ✨

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fr fr bestie, that's everything — every argument, every return value, no skips, no cuts 💀 the facts stay iconic, periodt 🔥

and that's a wrap 🎬 brought to you by ./kernel/events, dated October 2026 — mwah, see u in the next manpage, love u, bye 💜🎀🦋