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Re: PCH tests fail on sparc-sun-solaris2.7


> Date: Mon, 13 Jan 2003 16:16:50 -0500 (EST)
> From: "Kaveh R. Ghazi" <ghazi@caip.rutgers.edu>

> Geoff - as seen here:
> http://gcc.gnu.org/ml/gcc-testresults/2003-01/msg00571.html
> pretty much all of the PCH tests fail on sparc-sun-solaris2.7.
> 
> Looking in the log file, all of the error messages look like this:
> 
>  > gcc.dg/pch/global-1.c:-71: sorry, unimplemented: had to relocate PCH
>  > gcc.dg/pch/global-1.c:-71: internal compiler error: Segmentation Fault
> 
> (Sometimes the line number was -70 or -72 for the various other tests.)
> The g++ tests fail the same way.
> 
> I looked in gcc.dg/pch/pch.exp and guessed that I had to generate the
> PCH file by hand and rename it to *.hp.pch.  (Is that right?)  Then I
> ran cc1 on global-1.c under gdb and got an invalid memory reference as
> you can see below.  I'm not sure what I need to provide for you to
> reproduce it in a cross config.  PCH perhaps requires us to update our
> bug reporting instructions slightly?

The bug reporting instructions have been updated, but don't bother;
this is certainly a host-specific problem.  If every test is failing
with this message, that means the heuristic in gt_pch_save ("Try to
arrange things...") isn't working.  It'd be possible to implement the
relocation functionality, but this would slow down PCH use on your
system a lot, it'd be better if you could first work out what the
problem with the heuristic is.

-- 
- Geoffrey Keating <geoffk@geoffk.org>


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