m68k specific setjmp buffer.

sysdeps/m68k/bits/setjmp.h

@@ -0,0 +1,19 @@
+/* Define the machine-dependent type `jmp_buf'.  m68k version.  */
+
+typedef struct
+  {
+    /* There are eight 4-byte data registers, but D0 is not saved.  */
+    long int __dregs[7];
+
+    /* There are six 4-byte address registers, plus the FP and SP.  */
+    int *__aregs[6];
+    int * __fp;
+    int * __sp;
+
+#if defined(__HAVE_68881__) || defined(__HAVE_FPU__)
+    /* There are eight floating point registers which
+       are saved in IEEE 96-bit extended format.  */
+    char __fpregs[8 * (96 / 8)];
+#endif
+
+  } __jmp_buf[1];