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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 28 Apr 2015
      • Report Tweet
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      "error: CPU you selected does not support x86-64 instruction set" says an x86-64 GCC with -march=native. Uh... wat?

      3 replies 0 retweets 3 likes
    2. Sergio Conde‏ @skgsergio 28 Apr 2015
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      Replying to @marcan42

      @marcan42 with another valid x64 arch it works? seems that native is resolving to another arch that is not yours. I had that problem once.

      1 reply 0 retweets 0 likes
    3. Hector Martin‏ @marcan42 28 Apr 2015
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      Replying to @skgsergio

      .@skgsergio Apparently -march=native (on this Via Nano) is resolving to -march=core2 -mtune=i386. I don't even.

      3 replies 0 retweets 0 likes
    4. Sergio Conde‏ @skgsergio 29 Apr 2015
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      Replying to @marcan42

      @marcan42 Seems that Via is *still* not supported (yep, when I had that problem was in a via nano too): https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html …

      2 replies 0 retweets 0 likes
    5. Hector Martin‏ @marcan42 29 Apr 2015
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      Replying to @skgsergio

      @skgsergio It seems this should be sensible for this CPU: "-march=core2 -mfxsr -msahf -mcx16 -mmmx -msse -msse2 -msse3 -mssse3"

      1 reply 0 retweets 0 likes
    6. Sergio Conde‏ @skgsergio 29 Apr 2015
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      Replying to @marcan42

      @marcan42 I think I've used that time same flags but no march and mtune as generic.

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 29 Apr 2015
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      Replying to @skgsergio

      @skgsergio Some VIA whitepaper for a newer CPU mentions march=core2 so I'll try with that. Also added -mfpmath=sse.

      12:19 AM - 29 Apr 2015
      1 reply 0 retweets 0 likes
        1. Sergio Conde‏ @skgsergio 29 Apr 2015
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          Replying to @marcan42

          @marcan42 Nice then, I've done this in ~2010 so and didn't care so much back then.

          0 replies 0 retweets 0 likes
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