Konstantin Belousov 2b1de0afd1 Add API for obtaining extended machine context states that cannot be
fit into existing mcontext_t.

On i386 and amd64 do return the extended FPU states using
getcontextx(3). For other architectures, getcontextx(3) returns the
same information as getcontext(2).

Tested by:  pho
MFC after:  1 month
2012-01-21 18:00:28 +00:00
..
2011-12-13 14:53:26 +00:00
2010-12-04 08:44:56 +00:00
2011-11-18 09:56:40 +00:00
2011-09-28 14:52:25 +00:00
2011-12-30 10:45:00 +00:00