GCC 8 PowerPC Argument Changes

Joel Sherrill joel at rtems.org
Sun Feb 11 17:08:47 UTC 2018

On Feb 11, 2018 11:29 AM, "Peter Dufault" <dufault at hda.com> wrote:

What’s the context where -mno-spe is used?  The last time I followed this
the SPE support in the powerpc target was to be discontinued and a
powerpcspe target was to be introduced.

It is in one of the PowerPC BSP family variants.

I don't know the state of SPE support in GCC but guess I need to ask.

I suppose we just move the arguments to match GCC 8 when the RSB bumps to

On Feb 9, 2018, at 16:17 , Joel Sherrill <joel at rtems.org> wrote:


I am using GCC 8 to test my bsp_specs changes. On the
powerpc -mno-spe is gone.

I don't know of a case where we have a BSP that checks
if GCC supports an argument or not. I think we have just
changed the custom file when we upgraded GCC.

Any thoughts on the correct argument or better approach
than just to change the custom file when we bump GCC?


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Peter Dufault
HD Associates, Inc.      Software and System Engineering

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