2008-07-16 04:28:33 Ryan Hill napisał(a):
> On Tue, 15 Jul 2008 22:09:36 -0400
> Doug Goldstein <cardoe@g.o> wrote:
> 
> > Ryan Hill wrote:
> > > On Tue, 15 Jul 2008 21:39:00 +0200
> > > Fabian Groffen <grobian@g.o> wrote:
> > > 
> > >> On 15-07-2008 15:32:32 -0400, Doug Goldstein wrote:
> > >>> all,
> > >>>
> > >>> I'm at the point that -Wl,-O1 appears to be successful. It's time
> > >>> to toss on -Wl,--hash-style=gnu. The issue is that we need glibc
> > >>> 2.5 or higher and not mips. So one solution is to put the
> > >>> following:
> > >>>
> > >>> default/linux: LDFLAGS="-Wl,-O1,--hash-style=gnu"
> > >>> default/linux/mips: LDFLAGS="-Wl,-O1"
> > >>>
> > >>> However, this means we'll have to put a has_version check in  
> > >>> profile.bashrc of default/linux, which seems a bit cludgy..
> > >>>
> > >>> Any suggestions? Comments?
> > > 
> > > Also >sys-devel/binutils-2.17.
> > > 
> > >> I'm just wondering... unless it has changed since last time I
> > >> installed Gentoo Linux, but isn't the installation manual on
> > >> purpose conservative with CFLAGS?  make.conf.example also does not
> > >> much more than "-march -O2 -pipe".  -O1 to the linker feels
> > >> conservative to me.  Still, do we really need to go any further?
> > >> Why not make additional pointers to possible values for LDFLAGS
> > >> like we do for C(XX)FLAGS in the installation manual?
> > > 
> > > +1.
> > > 
> > > The default is already to generate a GNU style hash when available.
> > > I really don't know why we need to screw with it further.
> > > 
> > > 
> > 
> > It's actually not. In Gentoo we patch this to use 'both' as the
> > default.
> 
> Yes, which generates a GNU style hash (along with a SysV one).  True?
> If both are available and the linker understands .gnu.hash, it uses
> it.  Unless having both is detrimental due to the added size (i honestly
> don't know), this seems the best option to me.

.hash sections slightly increasize size of executables/libraries.
-Wl,--hash-style=gnu is a completely safe flag (on architectures which support
.gnu.hash), so having it in default LDFLAGS wouldn't cause any problems.
Having 2 or 3 flags in LDFLAGS isn't too screwing.

Using -Wl,--hash-style=gnu would also allow for easier detection of packages
which ignore LDFLAGS.

-- 
Arfrever Frehtes Taifersar Arahesis