8069389: CompilerOracle prefix wildcarding is broken for long strings

Replace strcpy with memmove

Reviewed-by: andrew
Backport-of: 01ec6950020268a375eb5330373e6c0813f3a924

Author: Roman Marchenko

hotspot/src/share/vm/compiler/compilerOracle.cpp

@@ -493,7 +493,8 @@ static MethodMatcher::Mode check_mode(char name[], const char*& error_msg) {
   int match = MethodMatcher::Exact;
   while (name[0] == '*') {
     match |= MethodMatcher::Suffix;
-    strcpy(name, name + 1);
+    // Copy remaining string plus NUL to the beginning
+    memmove(name, name + 1, strlen(name + 1) + 1);
   }
 
   if (strcmp(name, "*") == 0) return MethodMatcher::Any;

hotspot/test/compiler/oracle/TestCompileCommand.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+import java.io.PrintWriter;
+import java.io.File;
+
+import com.oracle.java.testlibrary.*;
+
+/*
+ * @test TestCompileCommand
+ * @bug 8069389
+ * @summary "Regression tests of -XX:CompileCommand"
+ * @library /testlibrary
+ * @run main TestCompileCommand
+ */
+
+public class TestCompileCommand {
+
+    private static final String[][] ARGUMENTS = {
+        {
+            "-XX:CompileCommand=print,*01234567890123456789012345678901234567890123456789,*0123456789012345678901234567890123456789",
+            "-version"
+        }
+    };
+
+    private static final String[][] OUTPUTS = {
+        {
+            "print *01234567890123456789012345678901234567890123456789.*0123456789012345678901234567890123456789"
+        }
+    };
+
+    private static void verifyValidOption(String[] arguments, String[] expected_outputs) throws Exception {
+        ProcessBuilder pb;
+        OutputAnalyzer out;
+
+        pb = ProcessTools.createJavaProcessBuilder(arguments);
+        out = new OutputAnalyzer(pb.start());
+
+        for (String expected_output : expected_outputs) {
+            out.shouldContain(expected_output);
+        }
+
+        out.shouldNotContain("CompileCommand: An error occured during parsing");
+        out.shouldHaveExitValue(0);
+    }
+
+    public static void main(String[] args) throws Exception {
+
+        if (ARGUMENTS.length != OUTPUTS.length) {
+            throw new RuntimeException("Test is set up incorrectly: length of arguments and expected outputs for type (1) options does not match.");
+        }
+
+        // Check if type (1) options are parsed correctly
+        for (int i = 0; i < ARGUMENTS.length; i++) {
+            verifyValidOption(ARGUMENTS[i], OUTPUTS[i]);
+        }
+    }
+}