Index: uspace/lib/cpp/src/__bits/glue.cpp
===================================================================
--- uspace/lib/cpp/src/__bits/glue.cpp	(revision 09553a0688dd595a61b5ca1b0336ac648708246c)
+++ uspace/lib/cpp/src/__bits/glue.cpp	(revision 6f025a80fc7ad329b44d6628d8299af5d7429898)
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2018 Jaroslav Jindrak
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * This file contains glue code that makes different
+ * architectures pass.
+ */
+
+#ifdef PLATFORM_arm
+
+/**
+ * ARM32 does not have GCC atomic operations inlined by
+ * the compiler, so we need to define stubs for our library
+ * to compile on this architecture.
+ */
+extern "C"
+{
+#define LIBCPP_GLUE_OP_AND_FETCH(NAME, OP, TYPE, SIZE) \
+    TYPE __sync_##NAME##_and_fetch_##SIZE (volatile void* vptr, TYPE val) \
+    { \
+        TYPE* ptr = (TYPE*)vptr; \
+        *ptr = *ptr OP val; \
+        return *ptr; \
+    }
+
+LIBCPP_GLUE_OP_AND_FETCH(add, +, unsigned, 4)
+LIBCPP_GLUE_OP_AND_FETCH(sub, -, unsigned, 4)
+
+#define LIBCPP_GLUE_CMP_AND_SWAP(TYPE, SIZE) \
+    TYPE __sync_compare_and_swap_##SIZE (TYPE* ptr, TYPE old_val, TYPE new_val) \
+    { \
+        if (*ptr == old_val) \
+            *ptr = new_val; \
+        return *ptr; \
+    }
+
+LIBCPP_GLUE_CMP_AND_SWAP(unsigned, 4)
+}
+#endif