In gcc 5.x there is a compile failure, for sh2 builds as shad no longer is accepted. Strange that it is working for 4.9.x. Add back old assembly code.
@@ -53,8 +53,24 @@ ENTRY(__clone)
mov #+SYS_ify(clone), r3
trapa #0x15
mov r0, r1
+#ifdef __sh2__
+/* 12 arithmetic shifts for the sh2, because shad doesn't exist! */
+ shar r1
+#else
mov #-12, r2
shad r2, r1
+#endif
not r1, r1 // r1=0 means r0 = -1 to -4095
tst r1, r1 // i.e. error in linux
bf .Lclone_end