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| From: | R0b0t1 <r030t1@×××××.com> | ||
|---|---|---|---|
| To: | gentoo-user@l.g.o | ||
| Subject: | Re: [gentoo-user] march to cross-compile ASUS laptop | ||
| Date: | Wed, 12 Jul 2017 03:20:08 | ||
| Message-Id: | CAAD4mYi7R8XShUWSRJgpkWmVE-L=GdW1XHi2xQiuK-59_1Qz6A@mail.gmail.com | ||
| In Reply to: | [gentoo-user] march to cross-compile ASUS laptop by "Andrés Becerra Sandoval" |
||
| 1 | On Tue, Jul 11, 2017 at 6:06 PM, Andrés Becerra Sandoval |
| 2 | <andres.becerra@×××××.com> wrote: |
| 3 | > |
| 4 | > It says that the microarchitecture is apollo-lake. |
| 5 | > |
| 6 | > What would be the proper march configuration for this box? |
| 7 | > |
| 8 | |
| 9 | Per the GCC documentation, here are the options you can pass to -march |
| 10 | (described under the section for -mtune): |
| 11 | |
| 12 | https://gcc.gnu.org/onlinedocs/gcc-4.5.3/gcc/i386-and-x86_002d64-Options.html |
| 13 | https://gcc.gnu.org/onlinedocs/gcc-6.1.0/gcc/x86-Options.html |
| 14 | https://gcc.gnu.org/onlinedocs/gcc-7.1.0/gcc/x86-Options.html |
| 15 | |
| 16 | Surprisingly it was hard to find this page of the documentation, even |
| 17 | knowing what I was looking for. |
| 18 | |
| 19 | You should also refer to the Wiki documentation for -march, found |
| 20 | here: https://wiki.gentoo.org/wiki/GCC_optimization#-march. |
| 21 | |
| 22 | Specifically I need to point out the use of cpuinfo2cpuflags-x86. If |
| 23 | you are finding it hard to find the corresponding -march/-mtune |
| 24 | setting for your processor by name, you may need to select an |
| 25 | equivalent setting by looking at the features your CPU supports. You |
| 26 | can also ask the list. |
| 27 | |
| 28 | R0b0t1. |