85 typedef struct sigcontext mcontext_t;  typedef
91   mcontext_t uc_mcontext;
97 typedef struct sigcontext mcontext_t;  typedef
103   mcontext_t uc_mcontext;
128 } mcontext_t;  typedef
134   mcontext_t uc_mcontext;
145 } mcontext_t;  typedef
152   mcontext_t uc_mcontext;
163 } mcontext_t;  typedef
169   mcontext_t uc_mcontext;
460   mcontext_t& mcontext = ucontext->uc_mcontext;  in FillRegisterState()