Konstantin Belousov 6a9e577413 Follow ABI when calling __error from the ptrace(2) wrapper.
In particular, preserve syscall arguments on stack, since callee is
not required to preserve arg-passing registers.  Align stack.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-08-28 00:26:06 +00:00
..
2016-04-30 01:24:24 +00:00