Several functions that are syscalls were passing structs by value
instead of by reference. Just changed that and implemented missing
verfication handlers for them.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Add verification handlers for some syscalls that are just missing
that. Though there are syscalls still missing that but they need to be
fixed before adding verification handlers.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>