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Re: [PATCH] Fix alignment of disassemble /r
- From: Daniel Gutson <daniel dot gutson at tallertechnologies dot com>
- To: Yao Qi <yao at codesourcery dot com>
- Cc: Doug Evans <dje at google dot com>, gdb-patches <gdb-patches at sourceware dot org>
- Date: Tue, 22 Apr 2014 09:13:40 -0300
- Subject: Re: [PATCH] Fix alignment of disassemble /r
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- References: <CAF5HaEUBbK4d2reSxUpUQwp7Zt_KjcpNC_nbUrMHRb0yNo9wtw at mail dot gmail dot com> <534F294D dot 4050907 at codesourcery dot com> <CAF5HaEUqppN8vLXnv5spG4WbWA0eNCQ1OybBNsM3ceTJDivrxw at mail dot gmail dot com> <CADPb22Qii2QiTZxv6-cz0zWTVOcft_nf1+Lb0rgg2c3Qyq07Og at mail dot gmail dot com> <CAF5HaEUjLYqQdgvrwEdUKBJFFeCaaZ8BQQQTSJz1RMo_VEJdUA at mail dot gmail dot com> <53546C38 dot 2000901 at codesourcery dot com> <CAF5HaEUwV=P03+2ckhvtj-PAPCUyxHw-RSWq5_KB2+XFh9dM-Q at mail dot gmail dot com>
OK timeout, I wil just KISS and implement the 2-passes solution
without considering paging.
I'll be back with the new version of the patch.
Thanks for your comments!
Daniel.
On Mon, Apr 21, 2014 at 1:00 PM, Daniel Gutson
<daniel.gutson@tallertechnologies.com> wrote:
> On Sun, Apr 20, 2014 at 9:54 PM, Yao Qi <yao@codesourcery.com> wrote:
>> On 04/18/2014 01:27 AM, Daniel Gutson wrote:
>>> I already considered this, but thought that it would be going to be
>>> rejected due to be too much non-performant. Wouldn't each pass
>>> translate in a lot of MI messaging in a case of a remote server? And,
>>
>> If you meant "rsp packets" rather than "MI messaging",
>
> Yes, my bad, sorry.
>
> we don't worry
>> about the performance much here. disassemble uses code cache
>> (target_read_code) to read instructions from remote server and the
>> following read to the same area will hit the cache.
>>
>>> what about screen paginig? I shouldn't iterate over all the range, but
>>> the screen height range only.
>>
>> What is the reason do you think we shouldn't iterator over all the
>> range? IMOï screen height and alignment are orthogonal.
>
> Suppose your function takes two screens of disassembly.
> Then suppose that the instructions that fit in the first screen take
> N bytes at most,
> and those of the second takes N+k. If I ignore screen paging, I would
> be aligning
> the first screen to N+k too, whereas those k are just useless space.
> It's a minor and cosmetic concern, but I'd like to get it right and
> pretty in one shot :)
>
> Daniel.
>
>>
>> --
>> Yao (éå)
>
>
>
> --
>
> Daniel F. Gutson
> Chief Engineering Officer, SPD
>
>
> San Lorenzo 47, 3rd Floor, Office 5
>
> CÃrdoba, Argentina
>
>
> Phone: +54 351 4217888 / +54 351 4218211
>
> Skype: dgutson
--
Daniel F. Gutson
Chief Engineering Officer, SPD
San Lorenzo 47, 3rd Floor, Office 5
CÃrdoba, Argentina
Phone: +54 351 4217888 / +54 351 4218211
Skype: dgutson