RELEASE BLOCKER: Linux doesn't follow x86/x86-64 ABI wrt direction flag

Robert Dewar dewar@adacore.com
Thu Mar 6 19:44:00 GMT 2008


H. Peter Anvin wrote:
> Robert Dewar wrote:
>> H.J. Lu wrote:
>>
>>> So that is the bug in the Linux kernel. Since fixing kernel is much 
>>> easier
>>> than providing a workaround in compilers, I think kernel should be fixed
>>> and no need for icc/gcc fix.
>> Fixing a bug in the Linux kernel is not "much easier". You are taking
>> a purely engineering viewpoint, but life is not like that. There are
>> lots of copies of Linux kernels around and in use. The issue is not
>> fixing the kernel per se, it is propagating that change to all
>> Linux kernels in use -- THAT'S another matter entirely, and is
>> far far more difficult than making sure that a kernel fix is
>> qualified and widely proopagated.
>>
> 
> Not really, it's just a matter of time.  Typical distro cycles are on 
> the order of 3 years.
> 
> 	-hpa

again, in the real world, there are MANY projects that are nothing
like this interactive when it comes to moving to new versions of
operating systems.



More information about the Gcc mailing list