[Bug gas/28794] Kernel build on big-endian PowerPC fails with 'Error: unrecognized opcode'

[glaubitz at physik dot fu-berlin.de]

https://sourceware.org/bugzilla/show_bug.cgi?id=28794

--- Comment #3 from John Paul Adrian Glaubitz <glaubitz at physik dot 
fu-berlin.de> ---
(In reply to Alan Modra from comment #2)
> Actually, there is a change in powerpc gas that might be the trigger for
> this sort of problem.  The ".machine" assembler directive when given a cpu
> now disables the effect of -many on the command line or in a previous
> ".machine".  If that is the cause, this is still a kernel bug.  If you use
> power7 instructions after ".machine power4" say, gas is correct to complain.

Yes, I just learned that after filing the bug report.

I'll check maybe the kernel issue was already fixed by the same person who made
the change to gas. Apparently, glibc has already been fixed.

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