[Bug 1740] Change PowerPC multi-libs for e200 and e500 cores

bugzilla-daemon at rtems.org bugzilla-daemon at rtems.org
Wed Feb 16 11:50:03 UTC 2011


dufault at hda.com changed:

           What    |Removed                     |Added
                 CC|                            |dufault at hda.com

--- Comment #1 from dufault at hda.com 2011-02-16 05:50:02 CST ---
(In reply to comment #0)
> We should not support SPE multi-lib variants, because this may effect the
> interrupt context save and restore overhead.  There is also an open GCC bug
> related to the SPE: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47751

I'll continue to build "-mspe -mfloat-gprs=single" as I don't want to change
now, I don't know if I'm just never generating SPE code or if the bug only
applies to -mfloat-gprs=double.  I'm also exercising the context switch code. 
I do want to use the SPE for some FIR work.

Are the names "embfp32" and "embfp64" in use elsewhere?  I've been using
"gprs_single" and "gprs_double" as it's clear it corresponds to the -m flags.

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