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:	Wed, 11 Apr 2007 00:17:17 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	Matt Mackall <mpm@...enic.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/13] maps#2: Move the page walker code to lib/

On Wed, 11 Apr 2007 16:35:44 +1000 Nick Piggin <nickpiggin@...oo.com.au> wrote:

> Matt Mackall wrote:
> > Move the page walker code to lib/
> > 
> > This lets it get shared outside of proc/ and linked in only when
> > needed.
> 
> Still should go into mm/

spose so.

> If it had, you might have also noticed your pagetable walking code
> is completely different from how everyone else does it, and fixed
> that too.

Different in what way?

> BTW. Is it the case that unused and unexported symbols don't get
> pruned by the linker except inside lib/?

If they're static and unreferenced then the linker will remove them.  Of
course, usually humans remove these because they generate warnings, unless
special-things happen.  We deliberately do special-things with
register_cpu_notifier() so the notifier-block and the handler go away if
!CONFIG_HOTPLUG_CPU.

If the functions are non-static then yes, I expect we end up with them in
vmlinux.  There are tricks we can play with -ffunction-sections to fix
that, but we don't.  
-
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/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ