linux-kernel - Re: [PATCH v3] x86, kconfig: Default to ARCH=x86 to avoid overriding CONFIG

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CACqU3MVY89L3B3=eFrmsgD2wzXtbQHssPm4D_-VZGEWNYBR4-Q@mail.gmail.com>
Date:	Sat, 30 Jul 2011 12:33:02 -0400
From:	Arnaud Lacombe <lacombar@...il.com>
To:	David Woodhouse <dwmw2@...radead.org>
Cc:	Michal Marek <mmarek@...e.cz>, "Ted Ts'o" <tytso@....edu>,
	Ingo Molnar <mingo@...e.hu>, x86@...nel.org,
	linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
	hpa@...or.com
Subject: Re: [PATCH v3] x86, kconfig: Default to ARCH=x86 to avoid overriding CONFIG_64BIT

Hi,

On Sat, Jul 30, 2011 at 12:19 PM, David Woodhouse <dwmw2@...radead.org> wrote:
> On Sat, 30 Jul 2011, Arnaud Lacombe wrote:
>
>> this is breaking ARCH=um.
>
> Breaking in what way?
from arch/um/Makefile:
[...]
include $(srctree)/$(ARCH_DIR)/Makefile-$(SUBARCH)

with the following Makefile-$(SUBARCH) available:

% ls arch/um/Makefile-*
[...] arch/um/Makefile-i386  arch/um/Makefile-x86_64

> Is it just that ARCH=um is broken for SUBARCH=x86,
> and needed to be updated anyway?
>
well, from my point of view, it do not need to be updated. Your patch
corrupt SUBARCH's purpose, that is:

# SUBARCH tells the usermode build what the underlying arch is.

Changing it will start to be really intrusive...

> And still works is you manually set
> SUBARCH to one of the legacy values?
>
no. the toplev Makefile use a direct immediate assignment, not a
conditional one.

 - Arnaud

> I'll try to reproduce and take a look later thuis evening.
>
> --
> dwmw2
>
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/