undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/hotspot/jtreg/compiler/arguments/TestPrintOptoAssemblyLineNumbers.java
+++ b/test/hotspot/jtreg/compiler/arguments/TestPrintOptoAssemblyLineNumbers.java
@ -0,0 +1,79 @@
+/*
+ * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+ * Copyright (c) 2021, 2023, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8033441
+ * @summary Test to ensure that line numbers are now present with the -XX:+PrintOptoAssembly command line option
+ *
+ * @requires vm.flagless
+ * @requires vm.compiler2.enabled & vm.debug == true
+ *
+ * @library /test/lib
+ * @run driver compiler.arguments.TestPrintOptoAssemblyLineNumbers
+ */
+
+package compiler.arguments;
+
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.process.ProcessTools;
+
+//    THIS TEST IS LINE NUMBER SENSITIVE
+
+public class TestPrintOptoAssemblyLineNumbers {
+    public static void main(String[] args) throws Throwable {
+        // create subprocess to run some code with -XX:+PrintOptoAssembly enabled
+        String[] procArgs = new String[] {
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:-TieredCompilation",
+            "-XX:+PrintOptoAssembly",
+            CheckC2OptoAssembly.class.getName()
+        };
+
+        ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder(procArgs);
+        OutputAnalyzer oa = new OutputAnalyzer(pb.start());
+        oa.shouldHaveExitValue(0);
+
+        if (oa.getOutput().contains("TestPrintOptoAssemblyLineNumbers$CheckC2OptoAssembly::main @ bci:11")) {
+            // if C2 optimizer invoked ensure output includes line numbers:
+            oa.stdoutShouldContain("TestPrintOptoAssemblyLineNumbers$CheckC2OptoAssembly::main @ bci:11 (line 72)");
+        }
+    }
+
+    public static class CheckC2OptoAssembly { // contents of this class serves to just invoke C2
+        public static boolean foo(String arg) {
+            return arg.contains("45");
+        }
+
+        public static void main(String[] args) {
+            int count = 0;
+            for (int x = 0; x < 200_000; x++) {
+                if (foo("something" + x)) { // <- test expects this line of code to be on line 72
+                    count += 1;
+                }
+            }
+            System.out.println("count: " + count);
+        }
+    }
+}