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Re: ppc, 1.0.1 & 980302, fixed/forbidden register spilled
- To: Geoffrey KEATING <geoffk at discus dot anu dot edu dot au>
- Subject: Re: ppc, 1.0.1 & 980302, fixed/forbidden register spilled
- From: David Edelsohn <dje at watson dot ibm dot com>
- Date: Wed, 04 Mar 1998 10:15:17 -0500
- Cc: egcs at cygnus dot com
>>>>> Geoffrey KEATING writes:
>> condvar.c: In function `pthread_cond_timedwait_relative':
>> condvar.c:153: fixed or forbidden register 68 (0) was spilled for class
>> CR0_REGS. This may be due to a compiler bug or to impossible asm
Geoffrey> You can find a patch for this at
Geoffrey> This is probably best used for PPC targets only; it might make
Geoffrey> already-existing problems in other ports worse. Other solutions have
Geoffrey> been proposed, but not AFAIK implemented.
I hope that you realize that this may exacerbate problems in the
PowerPC port as well, not just other ports.
Geoffrey> I'll integrate that patch with my other patches when I can
Geoffrey> build egcs again... Right now, I can't build anything because of
Geoffrey> kernel problems :-(.
If this patch is widely distributed as an official Linux-PPC RPM
and users rely upon it, it may cause serious problems. This particular
solution cannot be supported in the general distribution of EGCS.
I really appreciate the work that you have done in this area and I
fully agree that a real solution is necessary. I wish that people who
need this support would work to implement one of the better proposals.