diff --git a/arch/microblaze/lib/libgcc.h b/arch/microblaze/lib/libgcc.h
index 05909d58e2fe..ab077ef7e14b 100644
--- a/arch/microblaze/lib/libgcc.h
+++ b/arch/microblaze/lib/libgcc.h
@@ -22,4 +22,11 @@ typedef union {
 	long long ll;
 } DWunion;
 
+extern long long __ashldi3(long long u, word_type b);
+extern long long __ashrdi3(long long u, word_type b);
+extern word_type __cmpdi2(long long a, long long b);
+extern long long __lshrdi3(long long u, word_type b);
+extern long long __muldi3(long long u, long long v);
+extern word_type __ucmpdi2(unsigned long long a, unsigned long long b);
+
 #endif /* __ASM_LIBGCC_H */