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Re: [PATCH] Temporarily revert Steven's PCH changes for 4.8 (PR pch/54117)


On Wed, Feb 13, 2013 at 10:33 PM, David Edelsohn wrote:
> The AIX system supports DWARF debugging, but GCC does not generate it
> on AIX and GDB does not consume it on AIX.

Is there a description for what has to be done in GCC to enable DWARF
with AIX as/ld? E.g. is it required to support the ".dwsect" pseudo?
Is there already a plan from someone to make GCC produce DWARF on
AIX7?

AFAICT, for gcc+gas it should already work with binutils that include
the AdaCore patch for DWARF support. But this has apparently not been
tested with AIX ld, and there are AdaCore local patches pending.
http://sourceware.org/ml/binutils/2011-04/msg00250.html
http://www.sourceware.org/ml/gdb/2013-01/msg00030.html


> If you want to disable PCH on STABS systems on just AIX, that is fine.

This is probably what we'll end up doing, one way or another. That's
good enough for the goals I'm trying to achieve in the short term
(which means up to 2 years in my case ;-).

Ciao!
Steven


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