misc/177624: Swapcontext can get compiled incorrectly

Brian Demsky bdemsky at uci.edu
Thu Apr 4 05:25:32 UTC 2013


> The analysis is a little wrong about the problem.  Ultimately, the tail call to set context trashes the copies of bx and r14 on the stack….

On Apr 3, 2013, at 10:03 PM, Eitan Adler wrote:

> On 3 April 2013 23:10, Brian Demsky <bdemsky at uci.edu> wrote:
>> The following reply was made to PR misc/177624; it has been noted by GNATS.
>> 
>> From: Brian Demsky <bdemsky at uci.edu>
>> To: bug-followup at FreeBSD.org
>> Cc:
>> Subject: Re: misc/177624: Swapcontext can get compiled incorrectly
>> Date: Wed, 03 Apr 2013 20:01:14 -0700
>> 
>> QSBxdWljayBub3RlIHRoYXQgdGhlIHRhaWwgY2FsbCB0byBzZXQgY29udGV4dCBpcyB3aGF0IGFj
>> dHVhbGx5IHRyYXNoZXMgdGhlIGNvcGllcyBvZiByYnggYW5kIHIxNCBvbiB0aGUgc3RhY2su
> 
> Something is weird with this submission.  Please resend?
> 
> -- 
> Eitan Adler
> 



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