What CFLAGS for athlon-xp stage3?

theosib · Apprentice Joined: 09 Mar 2004 Posts: 207

It's been suggested that since I have an Athlon XP, I might want to use a pre-built stage3 tarball, ready-made for Athlon XP, instead of starting with stage1.

Unfortunately, I can't seem to find documentation anywhere indicating what CFLAGS were used when building the athlon-xp stage3. Does anyone know?

Thanks.

bombcar · Guru Joined: 08 Apr 2003 Posts: 453 Location: Wisconsin

I'm going to guess it was something very close to the "Safe CFLAGS" as seen at http://reviewed.homelinux.org/howtos/compiling/safe-cflags/

But that's just a guess.

theosib · Apprentice Joined: 09 Mar 2004 Posts: 207

Ok, thanks.

Interestingly enough, I've found -O3 to generally hurt performance. It's the -frename-registers flag that actually slows things down. -finline-functions generally speeds things up. So for me, it was "-O2 -finline-functions -fomit-frame-pointer -march=athlon-xp".

I guess I'll build from scratch.

mattjgalloway · l33t Joined: 16 Mar 2004 Posts: 761 Location: Coventry, UK

With my athlon xp I used:
-march=athlon-xp -O2 -pipe

They seemed to work fine for me! I did have -fomit-frame-pointer aswell, but removed due to errors compiling KDE with it in.

Stage 3 can be good I guess seeing as there are ready made stage 2 and 3's for athlon-xp, but I learnt lots from doing a stage 1, and it wasn't THAT hard.
My advice to you - go for a stage 1!

theosib · Apprentice Joined: 09 Mar 2004 Posts: 207

I once THOUGHT I had a problem with omit-frame-pointer, but it turned out that my memory settings were too aggressive.

Anyhow, I've started with stage1. I'm actually doing it for the second time, so all my config files, like make.conf, I saved, so I got to streamline some of the steps.