--- a/hotspot/src/os/posix/vm/os_posix.cpp	Mon Aug 18 14:37:55 2014 +0200
+++ b/hotspot/src/os/posix/vm/os_posix.cpp	Wed Nov 04 17:18:59 2015 -0500
@@ -177,6 +177,10 @@
   return aligned_base;
 }
 
+int os::log_vsnprintf(char* buf, size_t len, const char* fmt, va_list args) {
+    return vsnprintf(buf, len, fmt, args);
+}
+
 void os::Posix::print_load_average(outputStream* st) {
   st->print("load average:");
   double loadavg[3];