+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+typedef int greg_t, gregset_t[19];
+typedef struct _fpstate {
+ unsigned long cw, sw, tag, ipoff, cssel, dataoff, datasel;
+ struct {
+ unsigned short significand[4], exponent;
+ } _st[8];
+ unsigned long status;
+} *fpregset_t;
+struct sigcontext {
+ unsigned short gs, __gsh, fs, __fsh, es, __esh, ds, __dsh;
+ unsigned long edi, esi, ebp, esp, ebx, edx, ecx, eax;
+ unsigned long trapno, err, eip;
+ unsigned short cs, __csh;
+ unsigned long eflags, esp_at_signal;
+ unsigned short ss, __ssh;
+ struct _fpstate *fpstate;
+ unsigned long oldmask, cr2;
+};
+typedef struct {
+ gregset_t gregs;
+ fpregset_t fpregs;
+ unsigned long oldmask, cr2;
+} mcontext_t;
+#else