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Re: [Mingw-cross-env-list] stack smashing on i686 with -O3 since da82d07
From: |
Tony Theodore |
Subject: |
Re: [Mingw-cross-env-list] stack smashing on i686 with -O3 since da82d07dbe |
Date: |
Mon, 02 Nov 2015 13:14:31 +1100 |
> On 2 Nov 2015, at 05:27, Nagaev Boris <address@hidden> wrote:
>
> On Fri, Oct 30, 2015 at 10:45 PM, Nagaev Boris <address@hidden> wrote:
>> On Mon, Oct 26, 2015 at 11:16 PM, Moritz Bunkus <address@hidden> wrote:
>>> Hey,
>>>
>>> addendum: compiling with a i686 gcc 5.2.1 on a 32bit Ubuntu Wily (NOT a
>>> cross-compiler) with -O3 creates a (Linux) binary that does not crash
>>> and that runs without errors within valgrind.
>>>
>>> So far it looks like an issue limited to mingw in general or mxe in
>>> particular.
>>>
>>> Kind regards,
>>> mosu
>>
>> Moritz,
>>
>> I have found a similar case:
>> https://github.com/mxe/mxe/issues/964
>> Can you verify it, please?
>>
>
> The bug was reported to upstream:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68175
This one looks like a different case as it’s triggered with -O3 and isn’t
reproduced on linux.
`-fno-ipa-cp-clone` will prevent the crash.
Cheers,
Tony