IBM/4.3 Kernel build with hc?

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2 total messages Started by Chet Ramey Fri, 12 Jan 1990 21:16

#1854

Author: Chet Ramey
Date: Fri, 12 Jan 1990 21:16

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I just got my IBM/4.3 source distribution, and I'd like to draw on the
experience of others who have rebuilt kernels from source.  Is it `safe'
to use hc - I think my version is 2.1o - to compile the 4.3 kernel? 
I've seen hc generate bad code, generate incorrect code, and generate
code the assembler will reject.  I don't really want to use PCC because
of it's total lack of optimization, but I will if I have to.

Thanks in advance.

-- 
Chet Ramey
Network Services Group				"Help! Help! I'm being
Case Western Reserve University			 repressed!"
chet@ins.CWRU.Edu

Re: IBM/4.3 Kernel build with hc?

#1855

Author: John F Carr
Date: Sat, 13 Jan 1990 04:00

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We build with hc2 (.1s) and have found only one compiler related
problem in the kernel (this was in the Andrew File System code, which
you probably don't run).

I advise that you not mix compilers.  I don't know exactly what the
problem was, but I was able to reliably make a kernel built with a mix
of hc1 and hc2 crash hard (the only fix was CTRL-ALT-PAUSE or power).

  --John Carr (jfc@athena.mit.edu)
  Project Athena Systems Development

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