1 files changed, 17 insertions, 0 deletions
diff --git a/agent/src/main/java/com/code_intelligence/jazzer/runtime/TraceDataFlowNativeCallbacks.java b/agent/src/main/java/com/code_intelligence/jazzer/runtime/TraceDataFlowNativeCallbacks.java
index efbc3411..d759e282 100644
--- a/agent/src/main/java/com/code_intelligence/jazzer/runtime/TraceDataFlowNativeCallbacks.java
+++ b/agent/src/main/java/com/code_intelligence/jazzer/runtime/TraceDataFlowNativeCallbacks.java
@@ -15,11 +15,28 @@
 package com.code_intelligence.jazzer.runtime;
 
 import com.code_intelligence.jazzer.utils.Utils;
+import com.github.fmeum.rules_jni.RulesJni;
 import java.lang.reflect.Executable;
 import java.nio.charset.Charset;
 
 @SuppressWarnings("unused")
 final public class TraceDataFlowNativeCallbacks {
+  static {
+    try {
+      RulesJni.loadLibrary("jazzer_fuzzer_callbacks", TraceDataFlowNativeCallbacks.class);
+    } catch (UnsatisfiedLinkError e) {
+      // On Windows, we link the fuzzer callbacks statically instead and thus expect this library
+      // load to fail.
+      if (!System.getProperty("os.name").startsWith("Windows")) {
+        // In some scenarios (e.g. Java unit tests that do not go through the driver), this native
+        // library load will expectedly fail due to missing symbols. We make this case non-fatal as
+        // every actual usage of native methods in this class would result in another
+        // UnsatisfiedLinkError.
+        e.printStackTrace();
+      }
+    }
+  }
+
   // Making this static final ensures that the JIT will eliminate the dead branch of a construct
   // such as:
   // if (USE_FAKE_PCS) ... else ...