linux-kernel - Re: nommu build failure in linux-next

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Message-ID: <CAAHN_R2++cosPPdEsO=7ztfKJt9+Fi+iTje6o34EVvZ9kD1EtQ@mail.gmail.com>
Date:	Tue, 6 Mar 2012 20:49:57 +0530
From:	Siddhesh Poyarekar <siddhesh.poyarekar@...il.com>
To:	Mark Salter <msalter@...hat.com>
Cc:	linux-next <linux-next@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: nommu build failure in linux-next

On Tue, Mar 6, 2012 at 8:19 PM, Mark Salter <msalter@...hat.com> wrote:
> commit b7b2a0afacada237005068294cb0ccc49d32889e
> Author: Siddhesh Poyarekar <siddhesh.poyarekar@...il.com>
> Date:   Tue Mar 6 11:17:12 2012 +1100
>
>    procfs: mark thread stack correctly in proc/<pid>/maps
>
>
> This patch still breaks nommu builds. The previous syntax issue has been
> resolved, but now I see a link error:
>
> fs/built-in.o: In function `nommu_vma_show':
> task_nommu.c:(.text+0x564a0): undefined reference to `vm_is_stack'
> make[1]: *** [.tmp_vmlinux1] Error 1
>

The function is defined in mm/memory.c and I realized now that it is
not built when !CONFIG_MMU. There needs to be a copy of these
functions in nommu.c as well. I'll test the build and send a patch.


-- 
Siddhesh Poyarekar
http://siddhesh.in
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