Remove the inclusion of asm-offsets.h from stacktrace.c.  It isn't
supposed to be included in C code and it causes problems with multiple
definitions of things.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This adds stacktrace support for powerpc, which will be needed for
lockdep.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>