https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108315
Peter Bergner <bergner at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |amodra at gcc dot gnu.org
--- Comment #1 from Peter Bergner <bergner at gcc dot gnu.org> ---
CCing Alan, since he probably knows best how this all works, but yes,
-mcpu-power10 changes the ABI, namely it adds pcrel support which is an ABI
extension, where the function compiled with -mcpu=power10 doesn't use r2 to
access its GOT, but uses pcrel code instead. I think copying over a p10
compiled asm or obj file to a p9 system and them linking there with a non-p10
aware compiler/binutils seems to be a user error on my part. Just because the
-mcpu=power10 compiled file doesn't use any p10 instructions doesn't mean it's
safe to use on a pre-p10 system.
I'll let Alan correct me if I'm wrong, but this seems like user error to me.
