[arch-general] Prelink/Preload

[Nilesh Govindarajan]

On 02/01/2010 05:41 PM, Allan McRae wrote:
> On 01/02/10 21:57, Shridhar Daithankar wrote:
>> On Monday 01 February 2010 16:09:08 solsTiCe d'Hiver wrote:
>>> prelink modifies binary and library to ... prelink ;-) them. during the
>>> days of kde 3 I noticed a significant improvement in loading time of
>>> applications. I have dropped its use (prelink ... and kde3) because some
>>> recent binutils(or gcc or i don't remember) feature is supposed to do
>>> almost the same thing [ref. needed]
>>
>> A long time back(seems like eternity) I wrote a small post describing GNU
>> hash options in linker at http://dhoomketu.net.in/node/34.
>>
>> I cannot find the spec file in the arch GCC package anymore but the
>> binaries
>> do contain GNU hash section. Just run readelf on any binary, like
>> /bin/ls and
>> look for .gnu.hash.
>>
>> If the gcc package forces linker option to be GNU hash style only(I
>> don't know
>> how to verify this on arch), it could achieve the speed improvement
>> and reduce
>> the binary size somewhat as well.
>>
>> I guess most of that is already used by now except for forcing the GNU
>> hash-
>> style only.
>
> The gcc package uses --hash-style=both by default, but the default
> LDFLAGS for makepkg overrides this with --hash-style=gnu
>
> Allan
>

Well, I'm bumping this thread, but I have a doubt. When we run prelink, 
prelinking is permanent or has to be done at every boot ?

-- 
Nilesh Govindarajan
Site & Server Adminstrator
www.itech7.com