[arch-general] Prelink/Preload

[Allan McRae]

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