1 /*
 2  * Copyright (c) 2016, 2023, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 package jdk.vm.ci.code.test;
24 
25 import jdk.vm.ci.aarch64.AArch64;
26 import jdk.vm.ci.code.Architecture;
27 import jdk.vm.ci.hotspot.HotSpotVMConfigAccess;
28 import jdk.vm.ci.hotspot.HotSpotVMConfigStore;
29 
30 public class TestHotSpotVMConfig extends HotSpotVMConfigAccess {
31 
32     public TestHotSpotVMConfig(HotSpotVMConfigStore config, Architecture arch) {
33         super(config);
34         ropProtection = (arch instanceof AArch64) ? getFieldValue("VM_Version::_rop_protection", Boolean.class) : false;
35     }
36 
37     public final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class);
38     public final boolean useCompressedClassPointers = getFlag("UseCompressedClassPointers", Boolean.class);
39 
40     public final long narrowOopBase = getFieldValue("CompilerToVM::Data::Universe_narrow_oop_base", Long.class, "address");
41     public final int narrowOopShift = getFieldValue("CompilerToVM::Data::Universe_narrow_oop_shift", Integer.class, "int");
42 
43     public final long narrowKlassBase = getFieldValue("CompilerToVM::Data::Universe_narrow_klass_base", Long.class, "address");
44     public final int narrowKlassShift = getFieldValue("CompilerToVM::Data::Universe_narrow_klass_shift", Integer.class, "int");
45 
46     public final int classMirrorHandleOffset = getFieldOffset("Klass::_java_mirror", Integer.class, "OopHandle");
47 
48     // Checkstyle: stop
49     public final int MARKID_DEOPT_HANDLER_ENTRY = getConstant("CodeInstaller::DEOPT_HANDLER_ENTRY", Integer.class);
50     public final long handleDeoptStub = getFieldValue("CompilerToVM::Data::SharedRuntime_deopt_blob_unpack", Long.class, "address");
51 
52     public final int maxOopMapStackOffset = getFieldValue("CompilerToVM::Data::_max_oop_map_stack_offset", Integer.class, "int");
53     public final int heapWordSize = getConstant("HeapWordSize", Integer.class);
54 
55     // Check field with intx declaration is the same as int64_t.
56     public final int heldMonitorCountOffset = getFieldOffset("JavaThread::_held_monitor_count", Integer.class, "int64_t");
57 
58     public final boolean ropProtection;
59 }