Re: [RFC -tip] x86: introduce ENTRY(KPROBE)_X86 assembly helpers to catch unbalanced declaration

["H. Peter Anvin" <hpa@zytor.com>]

Alexander van Heukelum wrote:
> 
> The problem is that ENTRY(interrupt) is done in init.rodata, and
> ENTRY(irq_entries_start) is done in .text. So inside the .S-file,
> they are nested, but in the .o-file they are separate. Instead of
> removing ENTRY(irq_entries_start), I think we should just expand to:
> 
> 	.section .init.rodata,"a"
> 	.p2align 5
> 	.global interrupt
> interrupt:
> 
> and
> 
> 	size interrupt, .-interrupt
> 
> But the only importance I can think of is that this keeps both
> the "interrupt" array and irq_entries_start visible in debugging
> information.
> 
> Alternatively, we could probably do away with the interrupt
> array entirely. We _know_ how the irq stubs are structured and
> irq_entries_start is in principle enough information to reconstruct
> all information in interrupt.
> 

I'd rather not get rid of the interrupt array.  But more fundamentally,
interrupt is a data symbol, not an entry point.

	-hpa