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Hironatashima
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PostPosted: Thu Feb 23, 2006 10:40 pm    Post subject: -march=? Reply with quote

What is the -march= optimization flag for an AMD Athlon 64 3400+? Or where would I find a list for that?
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Catch-22
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PostPosted: Thu Feb 23, 2006 10:49 pm    Post subject: Reply with quote

http://gentoo-wiki.com/Safe_Cflags#Opteron.2FAthlon64_.28AMD.29
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Hironatashima
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PostPosted: Thu Feb 23, 2006 10:55 pm    Post subject: Kudos :D Reply with quote

Thank you
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Hironatashima
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PostPosted: Thu Feb 23, 2006 11:30 pm    Post subject: -march=? Reply with quote

Well I just took out the CPU identifier, and used the CFLAGS="-pipe -O2" to work it... it seems to work, but I don't want it to compile the 64 bit kernel.... I have had far too many problems with running the 64 bit mode of linux, and not all of my hardware is fully supported in 64 bit mode.
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Nick C
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PostPosted: Fri Feb 24, 2006 2:36 am    Post subject: Reply with quote

assuming your using an x86 install cd/stage3 you can safely add march=athlon-xp to your cflags, will provide a set of optimisations that work just fine for athlon64's :)
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Hironatashima
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PostPosted: Fri Feb 24, 2006 3:13 am    Post subject: :d Reply with quote

thank you... you will find out if it works or not :D
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nixnut
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PostPosted: Fri Feb 24, 2006 5:42 pm    Post subject: Reply with quote

Moved from Installing Gentoo to Duplicate Threads.
moved in favour of https://forums.gentoo.org/viewtopic-t-413949.html
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