Add missing files

base/glibc-compatibility/tests/CMakeLists.txt

@@ -0,0 +1,2 @@
+add_executable(memcpy_test memcpy_test.cpp)
+target_link_libraries(memcpy_test common memcpy)

base/glibc-compatibility/tests/memcpy_test.cpp

@@ -0,0 +1,26 @@
+#include <string.h>
+#include <iostream>
+#include <memcpy.h>
+
+__attribute__((__noinline__)) void memcpy_noinline(void * __restrict dst, const void * __restrict src, size_t size)
+{
+    memcpy(dst, src, size);
+}
+
+
+int main(int, char **)
+{
+    constexpr size_t buf_size = 100;
+    char buf[buf_size]{};
+    memcpy_noinline(buf, "abc", 3);
+
+    size_t bytes_to_copy = 3;
+    while (bytes_to_copy * 2 < buf_size)
+    {
+        memcpy_noinline(&buf[bytes_to_copy], buf, bytes_to_copy);
+        bytes_to_copy *= 2;
+    }
+
+    std::cerr << buf << "\n";
+    return 0;
+}