Thanks for replying,
I made this post just because I had the idea of compiling a 64bit LFS system for my just-received-2-days-ago laptop computer powered by an AMD Mobile Athlon64 3400+ CPU, so I wanted to make this post as some sort of a 'probe' to be able to obtain advice on how to do it, or just receive your personal impressions about this
Currently I haven't started the compilation, I'm too busy at the moment and hey, even turned off it's still the cutest mobile pc I've seen
My intention on this is to build in 'full' 64bit mode the following:
- linux system (binutils, glibc, gcc, etc, etc...)
- xfree86 4.x.x along with the propietary ATi drivers
- gnome 2.x.x (currently 2.6.1 if I remember correctly)
and several programs and utilities like:
and so on...
My fears were just thinking on the nasty chance to find 32bit inline asm code that could trash my project and not letting me make a good use of the -march/mcpu=k8
BTW i've seen many times the -O2
optimization flag, and as far as I've seen, there's 3 levels of optimization, but what level is the best for the best code production? I mean... what if I use -O3
? will it be... faster? slower? maybe more 'reliable' code?