K 10
svn:author
V 7
davidxu
K 8
svn:date
V 27
2004-08-09T23:57:59.000000Z
K 7
svn:log
V 265
In syscall, always make a copy of parameters from trapframe, this
becauses some syscalls using set_mcontext can sneakily change
parameters and later when those syscalls references parameters,
they will wrongly use register values in mcontext_t.

Approved by: peter

END