On Dec 17, 2008, at 8:11 AM, Ken Moffat wrote:
On Tue, Dec 16, 2008 at 07:39:49PM -0600, William Harrington wrote:
So far I have not been able to get gcc to build 32 bit by default.
I've attempted editing gcc/config/rs6000/linux64.h and editing the
specs file dumped by /tools/bin/gcc and changing defaults, however,
it
isn't helping any.
I figured it'd be easy to just change the specs so that
multilib_default was m32 and that if m64 or m32 wasn't given it'd use
the 32 bit code.
Same with changing MULTILIB_DEFAULTS in linux64.h to m32.
Perhaps ASM_DEFAULT_SPEC neeed changing to so I changed to so if m32
wasn't given it'd use 32. It's normally set that if m64 isn't given
it'll use 64 bit code.
Most of the lists I run across where people are wanting 32 bit by
default, they suggest using a wrapper script.
Any ideas?
-William
Take a look at fedora ? I've never attempted to understand all of
what they do for ppc64. You could start at
http://cvs.fedoraproject.org/viewvc/rpms/gcc/F-10/
The main thing is the specfile (gcc43.spec) which contains an
*enormous* amount of things, but particularly the chunk which starts
%ifarch sparcv9 ppc
ln -sf ../../../../../lib64/libobjc.so.2 64/libobjc.so
(I tried pasting it, but the long lines get broken)
I also note they create a gcc64 wrapper early in the process.
ĸen
Thanks for the input, Ken. Time to continue the project! It's a winter
wonderland out, cold out, and I'm stuck inside with laserdiscs and
E420R fan noise.
-William
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