PowerPC experts,

Paul Moore and I are working on the v2.4 release of libseccomp,
and as part of this work I need to update the syscall table for
each architecture.
I have incorporated the new ppc syscall.tbl into libseccomp, but
I am not familiar with the value of "spu" in the ABI column.  For
example:

22      32      umount                          sys_oldumount
22      64      umount                          sys_ni_syscall
22      spu     umount                          sys_ni_syscall

In libseccomp, we maintain a 32-bit ppc syscall table and a 64-bit
ppc syscall table.  Do we also need to add a "spu" ppc syscall
table?  Some clarification on the syscalls marked "spu" and "nospu"
would be greatly appreciated.

Thanks.

Tom

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