register_fprobe(9)

✨ NAME ✨

okay so bestie, this is register_fprobe(9) from the Kernel API Manual 💖 and it does exactly what it says on the tin: Register fprobe to ftrace by pattern. periodt.

🌸 SYNOPSIS 🌸

int register_fprobe (struct fprobe *fp , const char *filter , const char
       *notfilter );

🎀 ARGUMENTS 🎀

• fp — a fprobe data structure to be registered. that's the main character right there 👑
• filter — a wildcard pattern of probed symbols.
• notfilter — a wildcard pattern of NOT probed symbols. yes, the anti-vibe list 💅

🦋 DESCRIPTION 🦋

Register fp to ftrace for enabling the probe on the symbols matched to filter. If notfilter is not NULL, the symbols matched the notfilter are not probed. no cap, that's the whole matching situation ✨

Return 0 if fp is registered successfully, -errno if not. simple as that, bestie 🫶

🌈 SEE ALSO 🌈

• Kernel file ./kernel/trace/fprobe.c
• register_fprobe_ips(9)
• register_fprobe_syms(9)
• unregister_fprobe_async(9)
• unregister_fprobe(9)

these are the friends in the group chat, go say hi 👋💜

mwah 💋 this little page lives under ./kernel/trace, dated October 2026, and that's the footer energy — iconic, signed, sealed, delivered 🎀✨