8013496: Code cache management command line options work only in special...

8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
Summary: Moved check that ReservedCodeCacheSize >= InitialCodeCacheSize to Arguments::check_vm_args_consistency(). As a result, the ordering in which the two parameters are given to the VM is not relevant. Added a regression test.
Reviewed-by: kvn, twisti

src/share/vm/runtime/arguments.cpp

@@ -2217,6 +2217,13 @@ bool Arguments::check_vm_args_consistency() {
     status = false;
   }
 
+  if (ReservedCodeCacheSize < InitialCodeCacheSize) {
+    jio_fprintf(defaultStream::error_stream(),
+                "Invalid ReservedCodeCacheSize: %dK. Should be greater than InitialCodeCacheSize=%dK\n",
+                ReservedCodeCacheSize/K, InitialCodeCacheSize/K);
+    status = false;
+  }
+
   return status;
 }
 
@@ -2619,13 +2626,10 @@ jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args,
     } else if (match_option(option, "-Xmaxjitcodesize", &tail) ||
                match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) {
       julong long_ReservedCodeCacheSize = 0;
-      ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize,
-                                            (size_t)InitialCodeCacheSize);
+      ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, 1);
       if (errcode != arg_in_range) {
         jio_fprintf(defaultStream::error_stream(),
-                    "Invalid maximum code cache size: %s. Should be greater than InitialCodeCacheSize=%dK\n",
-                    option->optionString, InitialCodeCacheSize/K);
-        describe_range_error(errcode);
+                    "Invalid maximum code cache size: %s.\n", option->optionString);
         return JNI_EINVAL;
       }
       FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize);

test/compiler/8013496/Test8013496.sh

+#!/bin/sh
+# 
+# Copyright (c) 2013, 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 8013496
+# @summary Test checks that the order in which ReversedCodeCacheSize and 
+#          InitialCodeCacheSize are passed to the VM is irrelevant.  
+# @run shell Test8013496.sh
+#
+#
+## some tests require path to find test source dir
+if [ "${TESTSRC}" = "" ]
+then
+  TESTSRC=${PWD}
+  echo "TESTSRC not set.  Using "${TESTSRC}" as default"
+fi
+echo "TESTSRC=${TESTSRC}"
+## Adding common setup Variables for running shell tests.
+. ${TESTSRC}/../../test_env.sh
+set -x
+
+${TESTJAVA}/bin/java ${TESTVMOPTS} -XX:ReservedCodeCacheSize=2m -XX:InitialCodeCacheSize=500K -version > 1.out 2>&1
+${TESTJAVA}/bin/java ${TESTVMOPTS} -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=2m -version > 2.out 2>&1
+
+diff 1.out 2.out
+
+result=$?
+if [ $result -eq 0 ] ; then  
+  echo "Test Passed"
+  exit 0
+else
+  echo "Test Failed"
+  exit 1
+fi