linux-kernel - Re: [uClinux-dev] Re: [PATCH] NOMMU: add [stack] label to per-process maps output

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Message-ID: <8bd0f97a0912161136g19fdc4eeif977b56c98464f8b@mail.gmail.com>
Date:	Wed, 16 Dec 2009 14:36:32 -0500
From:	Mike Frysinger <vapier.adi@...il.com>
To:	uClinux development list <uclinux-dev@...inux.org>
Cc:	linux-kernel@...r.kernel.org, Greg Ungerer <gerg@...inux.org>,
	uclinux-dist-devel@...ckfin.uclinux.org,
	David McCullough <davidm@...pgear.com>
Subject: Re: [uClinux-dev] Re: [PATCH] NOMMU: add [stack] label to per-process 
	maps output

On Wed, Dec 16, 2009 at 11:59, David Howells wrote:
> Mike Frysinger wrote:
>
>> +             if (vma->vm_start <= mm->start_brk &&
>> +                             vma->vm_end >= mm->brk) {
>
> Hmmm...  That ought to involve mm->start_stack somewhere...  (Or, more
> probably, task->stack_start:-/)

in practice, it's probably always the same result, but you're right of
course.  when i looked through the elf_fdpic code, i looked at the
start_brk mmap() and missed the later start_stack assignment later on.
-mike
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