Index: uspace/lib/c/generic/thread/atomic.c
===================================================================
--- uspace/lib/c/generic/thread/atomic.c	(revision b1834a01038fc2eeb50637bb5cb48a741a03b9fb)
+++ 	(revision )
@@ -1,105 +1,0 @@
-/*
- * Copyright (c) 2018 CZ.NIC, z.s.p.o.
- * 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.
- */
-
-#include <atomic.h>
-
-#ifdef PLATFORM_arm32
-
-/*
- * Older ARMs don't have atomic instructions, so we need to define a bunch
- * of symbols for GCC to use.
- */
-
-void __sync_synchronize(void)
-{
-	// FIXME: Full memory barrier. We need a syscall for this.
-	// Should we implement this or is empty definition ok here?
-}
-
-unsigned __sync_add_and_fetch_4(volatile void *vptr, unsigned val)
-{
-	return atomic_add((atomic_t *)vptr, val);
-}
-
-unsigned __sync_sub_and_fetch_4(volatile void *vptr, unsigned val)
-{
-	return atomic_add((atomic_t *)vptr, -(atomic_signed_t)val);
-}
-
-bool __sync_bool_compare_and_swap_4(volatile void *ptr, unsigned old_val, unsigned new_val)
-{
-	return cas((atomic_t *)ptr, old_val, new_val);
-}
-
-unsigned __sync_val_compare_and_swap_4(volatile void *ptr, unsigned old_val, unsigned new_val)
-{
-	while (true) {
-		if (__sync_bool_compare_and_swap_4(ptr, old_val, new_val)) {
-			return old_val;
-		}
-
-		unsigned current = *(volatile unsigned *)ptr;
-		if (current != old_val)
-			return current;
-
-		/* If the current value is the same as old_val, retry. */
-	}
-}
-
-unsigned __atomic_fetch_add_4(unsigned *mem, unsigned val, int model)
-{
-	// TODO
-	(void) model;
-
-	return __sync_add_and_fetch_4(mem, val) - val;
-}
-
-unsigned __atomic_fetch_sub_4(unsigned *mem, unsigned val, int model)
-{
-	// TODO
-	(void) model;
-
-	return __sync_sub_and_fetch_4(mem, val) + val;
-}
-
-bool __atomic_compare_exchange_4(unsigned *mem, unsigned *expected, unsigned desired, bool weak, int success, int failure)
-{
-	// TODO
-	(void) success;
-	(void) failure;
-	(void) weak;
-
-	unsigned old = __sync_val_compare_and_swap_4(mem, *expected, desired);
-	if (old == *expected)
-		return true;
-
-	*expected = old;
-	return false;
-}
-
-#endif