x86-64: Add prototype for old_rsp to a header file

So far this has only been used in process_64.c, but the x32 code will
need it in additional code.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. J. Lu 2012-02-14 13:49:48 -08:00 • committed by H. Peter Anvin
commit d046ff8b30