err_msg(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’… err_msg(9) β€” Kernel API Manual (yes bestie, that's the 9 section, we're in kernel-land now)

okay so picture this: you're deep in the kernel tooling, something goes sideways, and you need to yell about it β€” politely, to stderr. That's literally the whole gig of err_msg. It's the friend who taps you on the shoulder and goes "girl… it broke." 🫢


✨ NAME ✨

err_msg β€” print an error message to the stderr πŸ”₯


πŸŽ€ SYNOPSIS πŸŽ€

void err_msg (const char *fmt , ... );

🌸 ARGUMENTS 🌸

  • fmt β€” honestly? -- undescribed --. the manpage itself is giving mysterious main character energy and refusing to elaborate πŸ™ˆ that's not me gatekeeping, that's literally what's written.
  • ... β€” variable arguments πŸ’« the whole "however many extras you feel like" situation.

πŸ¦‹ SEE ALSO πŸ¦‹

  • the kernel file ./tools/verification/rv/src/utils.c β€” that's where this lives, go snoop πŸ‘€
  • debug_msg(9) β€” its sibling, for when you want to say things without the error vibes πŸ’œ

ngl, this one is short and sweet, but that fmt being -- undescribed -- is sending me 😭 it's in the original, we don't fix what the kernel wrote, periodt.

so yeah, that's the whole page, no cap πŸ’… go print some errors, slay responsibly ✨

source/version: ./tools/verification/rv/src 🌈 dated October 2026 πŸŽ€ β€” mwah, bye bestie! πŸ‘‘

πŸ“¦ where this page comes from