linux-kernel - Re: [PATCH 17/39] kbuild: fix header export when __ASSEMBLY_

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]

Date:	Sat, 6 Jun 2009 09:14:53 +0100
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	Arnd Bergmann <arnd@...db.de>,
	linux-kbuild <linux-kbuild@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Jaswinder Singh Rajput <jaswinder@...nel.org>
Subject: Re: [PATCH 17/39] kbuild: fix header export when __ASSEMBLY__ is
	used

On Sat, Jun 06, 2009 at 08:05:52AM +0200, Sam Ravnborg wrote:
> On Sat, Jun 06, 2009 at 12:41:07AM +0000, Arnd Bergmann wrote:
> > On Friday 05 June 2009 11:42:35 pm Sam Ravnborg wrote:
> > > Because it does not know __ASSEMBLY__ it does not
> > > detect that htis is not for userspace.
> > > This caused too much code to be exported, and headers_check barfed
> > > over this code.
> > > 
> > > For arm this fixes following "make headers_check" warning:
> > > /usr/include/asm/hwcap.h:29: extern's make no sense in userspace
> > 
> > Are you sure that this is safe for all user space? If a user application
> > for instance includes asm/signal.h or asm/types.h from assembly (for
> > whatever reason), it now breaks.
> 
> I had not thought about this implication.
> I will drop the patch as this most likely
> will break some userspace.

So now go back and re-read my original email.  I was not suggesting to
undefine __ASSEMBLY__ - I was more detailed in my _question_ which I
was making, and there were _two_ possibilities.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
--
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/