Re: Avoiding unnecessary jump relocations in gas?

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

On 05/18/2015 01:25 PM, H.J. Lu wrote:
> On Mon, May 18, 2015 at 1:06 PM, H. Peter Anvin <hpa@zytor.com> wrote:
>> On 05/18/2015 01:02 PM, H.J. Lu wrote:
>>>>
>>>> I wonder if it would make sense to have explicit mnemonics for the
>>>> one-byte offset and four-byte offset jump variants.  Sometimes users
>>>> want a jump with a 32-bit offset for reasons that have nothing to do
>>>> with link-time or load-time relocations.
>>>>
>>>
>>> There is:
>>>
>>> jmp.d32 foo
>>>
>>
>> How far back does that syntax work?
>>
> 
> .d32 support was added by
> 
> commit f8a5c266971d7b5b96f973805551c6e88669cada
> Author: H.J. Lu <hjl.tools@gmail.com>
> Date:   Thu Oct 14 13:31:13 2010 +0000
> 
>     Add .d32 encoding suffix.
> 
> and .d8 supported was added by
> 
> commit a501d77eeba717f6d54dce44f286f9e3aad83144
> Author: H.J. Lu <hjl.tools@gmail.com>
> Date:   Fri Jan 20 20:53:50 2012 +0000
> 
>     Add .d8 suffix support to x86 assembler
> 

OK, that is probably too recent.  The simplest answer I think is just to
.balign 16 each vector.  This is init space... some extra padding really
doesn't matter.

Patch attached (still in compile test).

	-hpa

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