Re: [stable] PA-RISC: compile error in include/net/dst.h

[John David Anglin <dave@xxxxxxxxxxxxxxxxxx>]

On Tue, 24 May 2011, Rolf Eike Beer wrote:

> As 2.6.38.6 does if I use the correct .config. So it is an older issue which is 
> not related to recent changes but likely some general HPPA breakage. We'll 
> discuss the rest on linux-parisc.

If you believe this is a compiler error, I suggest using gcc 4.5.3 or
4.6.0.

All releases prior to 4.5.2 contain bugs in delay slot optimization
resulting in incorrect register liveness.  4.3 and 4.4 were seriously
broken at -O1, and neither could bootstrap gcc at -O1.  I just completed
backporting all the reorg fixes that I am aware of, but they aren't
included in any 4.3 or 4.4 release.

It's quite possible most gcc 4.3 and 4.4 releases are miscompiled
on targets with branch delay slots.  As a side, all the fixes that I
backported were to the generic code.

I have been using 4.5.3 and haven't seen your problem.

Dave
-- 
J. David Anglin                                  dave.anglin@xxxxxxxxxxxxxx
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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