From: | R0b0t1 <r030t1@×××××.com> | ||
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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. |