--- /dev/null
+#include <stdio.h>
+#include <assert.h>
+#include <urcu/arch_uatomic.h>
+
+#if (defined(__i386__) || defined(__x86_64__))
+#define HAS_ATOMIC_BYTE
+#define HAS_ATOMIC_SHORT
+#endif
+
+struct testvals {
+#ifdef HAS_ATOMIC_BYTE
+ unsigned char c;
+#endif
+#ifdef HAS_ATOMIC_SHORT
+ unsigned short s;
+#endif
+ unsigned int i;
+ unsigned long l;
+};
+
+static struct testvals vals;
+
+#define do_test(ptr) \
+do { \
+ __typeof__(*(ptr)) v; \
+ \
+ uatomic_add(ptr, 10); \
+ assert(uatomic_read(ptr) == 10); \
+ uatomic_add(ptr, -11UL); \
+ assert(uatomic_read(ptr) == (__typeof__(*(ptr)))-1UL); \
+ v = uatomic_cmpxchg(ptr, -1UL, 22); \
+ assert(uatomic_read(ptr) == 22); \
+ assert(v == (__typeof__(*(ptr)))-1UL); \
+ v = uatomic_cmpxchg(ptr, 33, 44); \
+ assert(uatomic_read(ptr) == 22); \
+ assert(v == 22); \
+ v = uatomic_xchg(ptr, 55); \
+ assert(uatomic_read(ptr) == 55); \
+ assert(v == 22); \
+ uatomic_set(ptr, 22); \
+ uatomic_inc(ptr); \
+ assert(uatomic_read(ptr) == 23); \
+ uatomic_dec(ptr); \
+ assert(uatomic_read(ptr) == 22); \
+ v = uatomic_add_return(ptr, 100); \
+ assert(v == 122); \
+ assert(uatomic_read(ptr) == 122); \
+ v = uatomic_sub_return(ptr, 1); \
+ assert(v == 121); \
+ assert(uatomic_read(ptr) == 121); \
+} while (0)
+
+int main(int argc, char **argv)
+{
+#ifdef HAS_ATOMIC_BYTE
+ do_test(&vals.c);
+#endif
+#ifdef HAS_ATOMIC_SHORT
+ do_test(&vals.s);
+#endif
+ do_test(&vals.i);
+ do_test(&vals.l);
+ printf("Atomic ops test OK\n");
+
+ return 0;
+}