840     let act = regs.r9 as usize as *mut user_sigaction;  in sys_sigaction()  localVariable
846     if !act.is_null() {  in sys_sigaction()
848         if unsafe { !verify_area(act as usize as u64, size_of::<sigaction>() as u64) } {  in sys_sigaction()
851         let mask: sigset_t = unsafe { (*act).sa_mask };  in sys_sigaction()
852         let _input_sah = unsafe { (*act).sa_handler as u64 };  in sys_sigaction()
859                         (unsafe { (*act).sa_flags } & (!(SA_FLAG_DFL | SA_FLAG_IGN))) | SA_FLAG_DFL;  in sys_sigaction()
863                         (unsafe { (*act).sa_flags } & (!(SA_FLAG_DFL | SA_FLAG_IGN))) | SA_FLAG_IGN;  in sys_sigaction()
866                 let sar = unsafe { (*act).sa_restorer };  in sys_sigaction()
873                         _sa_handler: unsafe { (*act).sa_handler as u64 },  in sys_sigaction()
875                     sa_flags: unsafe { (*act).sa_flags },  in sys_sigaction()
877                     sa_restorer: unsafe { (*act).sa_restorer as u64 },  in sys_sigaction()
903         if act.is_null() {  in sys_sigaction()
949     act: Option<&mut sigaction>,  in do_sigaction()
979     let act = {  in do_sigaction()  localVariable
980         if act.is_some() {  in do_sigaction()
981             let ac = act.unwrap();  in do_sigaction()
993     if act.is_some() {  in do_sigaction()
994         let ac = act.unwrap();  in do_sigaction()