SYS_SYSCALL
CONCAT(SYS_SYSCALL, _biglockcheck)(p, code);
CONCAT(SYS_SYSCALL, _biglockcheck)(struct proc *p, int code)
SYS_SYSCALL(struct lwp *l, const struct CONCAT(SYS_SYSCALL, _args) *uap,
CONCAT(SYS_SYSCALL, _biglockcheck)(p, code);