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From: Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org>
Subject: Re: [Qemu-devel] [PATCH v4 2/2] Build usermode targets as PIE
References: <1252067286-21758-1-git-send-email-kirill@shutemov.name>
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Date: Mon, 07 Sep 2009 10:29:29 +0200
In-Reply-To: <cc557aab0909040314j31307c44u6af42cd1adc453a9@mail.gmail.com>
	(Kirill A. Shutemov's message of "Fri\,
	4 Sep 2009 13\:14\:45 +0300")
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To: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Paolo Bonzini <bonzini@gnu.org>, Riku Voipio <riku.voipio@iki.fi>, qemu-devel@nongnu.org, Paul Brook <paul@codesourcery.com>, Juan Quintela <quintela@trasno.org>

"Kirill A. Shutemov" <kirill@shutemov.name> writes:
Hi,

>> Unfortunately, the broken mips toolchain pass this test. When you
>> compile, you're getting no warning at all. Moreover, the failure is
>> triggered at run-time (and this test doesn't trigger it). See
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=526961 if you want
>> something which segfault with pie.
>> I don't know if there are some other non-mips toolchains with broken pie
>> and what's their behaviour. I hope it's crashing too...
>
> Where can I get a mips cross-compiler with this issue to play?

No, sorry. I'm building mips stuff only natively. Fortunately, this is a
toolchain bug so this should be reproductible if you use qemu to emulate
a mips box running debian for mipsel.


Arnaud