[gentoo-dev] FAQ(?): prelinking support in Gentoo

[gentoo-dev] FAQ(?): prelinking support in Gentoo

[Rolf Offermanns]

Hi,

I've searched the ml archive for this and found several threads, the 
last message from 06/2002.

Since RedHat8.0 and SuSE seem to have (at least experimental) prelinking 
support, what is the current status of it in Gentoo Linux?

Anyone working on or evaluating it?

-Rolf

Re: [gentoo-dev] FAQ(?): prelinking support in Gentoo

[Paul de Vrieze]

On Friday 04 October 2002 12:43, Rolf Offermanns wrote:
> Hi,
>
> I've searched the ml archive for this and found several threads, the
> last message from 06/2002.
>
> Since RedHat8.0 and SuSE seem to have (at least experimental) prelinking
> support, what is the current status of it in Gentoo Linux?
>
> Anyone working on or evaluating it?
>

It will probably come together with glibc-2.3 support. I don't know when glibc 
will be officially supported because of the feature freeze, but I expect 
there will be masked ebuilds any time soon.

Paul

-- 
Paul de Vrieze
Junior Researcher
Mail: pauldv@cs.kun.nl
Homepage: http://www.devrieze.net

Re: [gentoo-dev] FAQ(?): prelinking support in Gentoo

[Rolf Offermanns]

Paul de Vrieze wrote:
> It will probably come together with glibc-2.3 support. I don't know when glibc 
> will be officially supported because of the feature freeze, but I expect 
> there will be masked ebuilds any time soon.

So are you familiar with the subject?
Because I am confused about the different prelinking options I've read 
about.

There is the
   - objprelink stuff at sourceforge (objprelink.sf.net)
   - prelink binary from redhat (ftp://people.redhat.com/jakub/prelink)
   - "-z combreloc" support in binutils

And now there is prelinking support in the glibc-2.3 version.

Can you (or somebody else) explain how these things relate to each other?

Thanks in advance,
-Rolf

Re: [gentoo-dev] FAQ(?): prelinking support in Gentoo

[Rolf Offermanns]

Paul de Vrieze wrote:
 > It will probably come together with glibc-2.3 support. I don't know 
when glibc
 > will be officially supported because of the feature freeze, but I expect
 > there will be masked ebuilds any time soon.

So are you familiar with the subject?
Because I am confused about the different prelinking options I've read
about.

There is the
    - objprelink stuff at sourceforge (objprelink.sf.net)
    - prelink binary from redhat (ftp://people.redhat.com/jakub/prelink)
    - "-z combreloc" support in binutils

And now there is prelinking support in the glibc-2.3 version.

Can you (or somebody else) explain how these things relate to each other?

Thanks in advance,
-Rolf

Re: [gentoo-dev] FAQ(?): prelinking support in Gentoo

[Paul de Vrieze]

On Friday 04 October 2002 13:13, Rolf Offermanns wrote:
> Paul de Vrieze wrote:
> > It will probably come together with glibc-2.3 support. I don't know when
> > glibc will be officially supported because of the feature freeze, but I
> > expect there will be masked ebuilds any time soon.
>
> So are you familiar with the subject?
> Because I am confused about the different prelinking options I've read
> about.
>
> There is the
>    - objprelink stuff at sourceforge (objprelink.sf.net)
>    - prelink binary from redhat (ftp://people.redhat.com/jakub/prelink)
>    - "-z combreloc" support in binutils
>
> And now there is prelinking support in the glibc-2.3 version.
>
> Can you (or somebody else) explain how these things relate to each other?

I'm not that familiar, but the release notes for glibc-2.3 say it will need 
new binutils and the prelink binary from redhat to do prelinking. At the 
objfrelink site they say not to use it when you have the gnu utils (we do). 
The prelink binary probably uses the binutils.

Paul

-- 
Paul de Vrieze
Junior Researcher
Mail: pauldv@cs.kun.nl
Homepage: http://www.devrieze.net

Re: [gentoo-dev] FAQ(?): prelinking support in Gentoo

[Dan Armak]

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On Friday 04 October 2002 14:41, Paul de Vrieze wrote:
> On Friday 04 October 2002 13:13, Rolf Offermanns wrote:
> > Paul de Vrieze wrote:
> > > It will probably come together with glibc-2.3 support. I don't know
> > > when glibc will be officially supported because of the feature freeze,
> > > but I expect there will be masked ebuilds any time soon.
> >
> > So are you familiar with the subject?
> > Because I am confused about the different prelinking options I've read
> > about.
> >
> > There is the
> >    - objprelink stuff at sourceforge (objprelink.sf.net)
> >    - prelink binary from redhat (ftp://people.redhat.com/jakub/prelink)
> >    - "-z combreloc" support in binutils
> >
> > And now there is prelinking support in the glibc-2.3 version.
> >
> > Can you (or somebody else) explain how these things relate to each other?
>
> I'm not that familiar, but the release notes for glibc-2.3 say it will need
> new binutils and the prelink binary from redhat to do prelinking. At the
> objfrelink site they say not to use it when you have the gnu utils (we do).
> The prelink binary probably uses the binutils.

I can add that combreloc (what we have now) != prelink. However it should 
provide most of the speedup prelink gives you. They can be used together but 
combreloc doesn't add much if you already have prelink.

I think that's so, anyway :-)

- -- 
Dan Armak
Gentoo Linux developer (KDE)
Matan, Israel
Public GPG key: http://www.gentoo.org/~danarmak/danarmak-gpg-public.key
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Re: [gentoo-dev] FAQ(?): prelinking support in Gentoo

[Paul de Vrieze]

On Friday 04 October 2002 14:26, Dan Armak wrote:
>
> I think that's so, anyway :-)

And what the combreloc people say too.

Paul

-- 
Paul de Vrieze
Junior Researcher
Mail: pauldv@cs.kun.nl
Homepage: http://www.devrieze.net

Re: [gentoo-dev] FAQ(?): prelinking support in Gentoo

[Rolf Offermanns]

Paul de Vrieze wrote:
> 
> 
> And what the combreloc people say too.

And the objprelink people, too.
:)

http://objprelink.sourceforge.net/objprelink.html

-Rolf

Re: [gentoo-dev] FAQ(?): prelinking support in Gentoo

[Rolf Offermanns]

Dan Armak wrote:
> I can add that combreloc (what we have now) != prelink.

Reading your mail again...
Can you explain the "what we have now" part?
Where can I "see" this support in my Gentoo installation?
Or is enabled per default without any special configuration?

-Rolf

Re: [gentoo-dev] FAQ(?): prelinking support in Gentoo

[Paul de Vrieze]

On Friday 04 October 2002 14:46, Rolf Offermanns wrote:
> Dan Armak wrote:
> > I can add that combreloc (what we have now) != prelink.
>
> Reading your mail again...
> Can you explain the "what we have now" part?
> Where can I "see" this support in my Gentoo installation?
> Or is enabled per default without any special configuration?
>

At least kde does it. I veryfied it per the instructions on objprelink.sf.net

Paul

-- 
Paul de Vrieze
Junior Researcher
Mail: pauldv@cs.kun.nl
Homepage: http://www.devrieze.net

Re: [gentoo-dev] FAQ(?): prelinking support in Gentoo

[Dan Armak]

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Hash: SHA1

On Friday 04 October 2002 15:46, Rolf Offermanns wrote:
> Dan Armak wrote:
> > I can add that combreloc (what we have now) != prelink.
>
> Reading your mail again...
> Can you explain the "what we have now" part?
> Where can I "see" this support in my Gentoo installation?
> Or is enabled per default without any special configuration?

Yes, it'd enabled by default with the latest binutils (which may only be 
available in our gcc3.x profiles, I'm not sure about that).

- -- 
Dan Armak
Gentoo Linux developer (KDE)
Matan, Israel
Public GPG key: http://www.gentoo.org/~danarmak/danarmak-gpg-public.key
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[gentoo-dev] Re: FAQ(?): prelinking support in Gentoo

[lovechild]

and I read... there's startup speed to be gained (small, but startup times 
reducing, that's always good...) ... I want it - anyone brave enough to 
combine the two and see if it actually works ?
It would be really cool to have bragging rights... 

[Elite loser geek]
D00d... my l33t Gentoo system has Combreloc, objprelinking and prelinking... 
Konqueror is my bitch :-)
[/Elite loser geek] 

(Note, I read somewhere that obj prelinking and prelinking isn't really 
related - obj prelinkind seems to be sort of a cache for linked objects or 
something.. not much of a developer myself so I didn't bother to 
investigate) 

Anyways, if there's a outlining of what needs to be done to test this 
dangerous mix (danger == fun, right?) I would be more than willing to trash 
a perfectly good Athlon-XP setup to futher mankinds search for the fastest 
Linux setup ever :) 

 - David 


Rolf Offermanns writes: 

>  
> 
> Paul de Vrieze wrote:
>>  
>> 
>> And what the combreloc people say too.
> 
> And the objprelink people, too.
> :) 
> 
> http://objprelink.sourceforge.net/objprelink.html 
> 
> -Rolf 
> 
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