DECLARE_IDTENTRY_ERRORCODE(9)

🎀 NAME 🎀

Ok so DECLARE_IDTENTRY_ERRORCODE(9) is from the Kernel API Manual, and it is literally here to declare functions for simple IDT entry points — specifically the ones where the Error code is pushed by hardware. ✨

✨ SYNOPSIS ✨

DECLARE_IDTENTRY_ERRORCODE (vector , func );

🫶 ARGUMENTS 🫶

• vector — the vector number (and yeah, it's ignored for C 💀)
• func — the function name of the entry point 🫶

💅 DESCRIPTION 💅

This macro declares three functions, periodt:

• The ASM entry point: asm_##func 🔥
• The XEN PV trap entry point: xen_##func (maybe unused) 🧚
• The C handler called from the ASM entry point 💅

It's the same as DECLARE_IDTENTRY, but the C-handler gets an extra error_code argument. That's the whole glow-up. 💖

🌈 SEE ALSO 🌈

Kernel file ./arch/x86/include/asm/idtentry.h — and the whole friend group is: DECLARE_IDTENTRY(9), DEFINE_IDTENTRY(9), DEFINE_IDTENTRY_ERRORCODE(9), DECLARE_IDTENTRY_RAW(9), DEFINE_IDTENTRY_RAW(9), DEFINE_FREDENTRY_RAW(9), DECLARE_IDTENTRY_RAW_ERRORCODE(9), DEFINE_IDTENTRY_RAW_ERRORCODE(9), DECLARE_IDTENTRY_IRQ(9), DEFINE_IDTENTRY_IRQ(9), DECLARE_IDTENTRY_SYSVEC(9), DEFINE_IDTENTRY_SYSVEC(9), DEFINE_IDTENTRY_SYSVEC_SIMPLE(9), DECLARE_IDTENTRY_XENCB(9), DECLARE_IDTENTRY_IST(9), DECLARE_IDTENTRY_VC(9), DEFINE_IDTENTRY_IST(9), DEFINE_IDTENTRY_NOIST(9), DECLARE_IDTENTRY_DF(9), DEFINE_IDTENTRY_DF(9), DECLARE_IDTENTRY_DF(9), DEFINE_IDTENTRY_DF(9). 👑

Signed, sealed, slayed: source/version is ./arch/x86/include/asm, date is October 2026, and the page is DECLARE_IDTENTRY_ERRORCODE(9). Bye bestie, go handle those error-code entries! 💅💖