Re: [PATCH] Immediate Values x86 Optimization Declare Discarded Instruction

[H. Peter Anvin]

Mathieu Desnoyers wrote:
> nitpicking :
>
> > 	.section __discard,"a",@progbits
>
> could we simply declare a 
>
>      .section __discard,"",@progbits instead ?
>
> I think this should remove the need to tweak the linker script, since
> the section would not be allocated.

The allocation flag is a loader property, not a linker property.  It 
would still be manifest in the vmlinux file; I think this is 
undesirable.  Perhaps not a big deal, but neither is adding a /DISCARD/ 
statement to the linker script:

/DISCARD/ : { *(__discard) }

	-hpa
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/