Gentoo Archives: gentoo-user

From: Adam Carter <adamcarter3@×××××.com>
To: "gentoo-user@l.g.o" <gentoo-user@l.g.o>
Subject: Re: [gentoo-user] Missing CPU options in make menuconfig
Date: Thu, 21 Jul 2016 02:56:27
Message-Id: CAC=wYCE3q57bqPtHS116_nJHFsR_wUtNQOGB14A8Vc41an4Skw@mail.gmail.com
In Reply to: Re: [gentoo-user] Missing CPU options in make menuconfig by Fernando Rodriguez
1 The experimental use flag turns on the other arch's in gentoo-sources.
2 Perhaps that will help identify which is the relevant patch?
3
4 On Thu, Jul 21, 2016 at 11:07 AM, Fernando Rodriguez <cyklonite@×××××.com>
5 wrote:
6
7 > -----BEGIN PGP SIGNED MESSAGE-----
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9 >
10 > On 07/20/2016 07:38 PM, Fernando Rodriguez wrote:
11 > > On 07/20/2016 02:54 PM, Neil Bothwick wrote:
12 > >> On Wed, 20 Jul 2016 14:33:04 -0400, Fernando Rodriguez wrote:
13 > >
14 > >>> I don't use gentoo sources but I remember reading about gentoo patches
15 > >>> for processor specific optimizations and being tempted to try them. Is
16 > >>> it possible that is what you're refering to?
17 > >>>
18 > >>> The vanilla sources only shows 5 choices for me on amd64:
19 > >>> (X) Opteron/Athlon64/Hammer/K8
20 > >>> ( ) Intel P4 / older Netburst based Xeon
21 > >>> ( ) Core 2/newer Xeon
22 > >>> ( ) Intel Atom
23 > >>> ( ) Generic-x86-64
24 > >>>
25 > >>> And it shows a different set of options when I run it on an x86
26 > machine.
27 > >
28 > >> That's what I get here, but help lists all the ones I get in
29 > >> gentoo-sources, apart from MNATIVE, which indicates to me that those
30 > >> options should be available, once I work out how to switch them on.
31 > >
32 > > Disable CONFIG_64BIT and you'll get them all.
33 >
34 > And for future references, here's how I found out:
35 >
36 > 1. On the sources where you have the options highlight one of them and
37 > press ? (help). You'll see X86_32 under "Depends on:".
38 >
39 > 2. Hit ESC twice and then twice again to return to a menu with
40 > search functionality. Then type /X86_32 and hit enter. You'lll see that
41 > the option depends on !64BIT, so you need to disable CONFIG_64BIT for
42 > X86_32 to be available.
43 >
44 > 3. After disabling CONFIG_64BIT on the kernel where the options where
45 > missing
46 > I searched X86_32 again and this time it has [=y] next to it so it came
47 > on automatically and the options showed up but for some options you
48 > need to
49 > enable manually after enabling the dependencies.
50 >
51 > - --
52 >
53 > Fernando Rodriguez
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Replies

Subject Author
Re: [gentoo-user] Missing CPU options in make menuconfig Neil Bothwick <neil@××××××××××.uk>