1 /*
2 * Copyright (c) 2013, 2016, 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.hotspot;
24
25 import java.lang.reflect.Field;
26
27 import jdk.vm.ci.code.BailoutException;
28 import jdk.vm.ci.code.BytecodeFrame;
29 import jdk.vm.ci.code.CodeCacheProvider;
30 import jdk.vm.ci.code.CompiledCode;
31 import jdk.vm.ci.code.InstalledCode;
32 import jdk.vm.ci.code.RegisterConfig;
33 import jdk.vm.ci.code.TargetDescription;
34 import jdk.vm.ci.code.site.Call;
35 import jdk.vm.ci.code.site.Mark;
36 import jdk.vm.ci.meta.ResolvedJavaMethod;
37 import jdk.vm.ci.meta.SpeculationLog;
38
39 /**
40 * HotSpot implementation of {@link CodeCacheProvider}.
41 */
42 public class HotSpotCodeCacheProvider implements CodeCacheProvider {
43
44 protected final HotSpotJVMCIRuntimeProvider runtime;
45 public final HotSpotVMConfig config;
46 protected final TargetDescription target;
47 protected final RegisterConfig regConfig;
48
49 public HotSpotCodeCacheProvider(HotSpotJVMCIRuntimeProvider runtime, HotSpotVMConfig config, TargetDescription target, RegisterConfig regConfig) {
50 this.runtime = runtime;
51 this.config = config;
52 this.target = target;
53 this.regConfig = regConfig;
54 }
55
56 @Override
57 public String getMarkName(Mark mark) {
58 int markId = (int) mark.id;
59 Field[] fields = runtime.getConfig().getClass().getDeclaredFields();
60 for (Field f : fields) {
61 if (f.getName().startsWith("MARKID_")) {
62 f.setAccessible(true);
63 try {
64 if (f.getInt(runtime.getConfig()) == markId) {
65 return f.getName();
66 }
67 } catch (Exception e) {
68 }
69 }
70 }
71 return CodeCacheProvider.super.getMarkName(mark);
72 }
73
74 /**
75 * Decodes a call target to a mnemonic if possible.
76 */
77 @Override
78 public String getTargetName(Call call) {
79 Field[] fields = runtime.getConfig().getClass().getDeclaredFields();
80 for (Field f : fields) {
81 if (f.getName().endsWith("Stub")) {
82 f.setAccessible(true);
83 try {
84 Object address = f.get(runtime.getConfig());
85 if (address.equals(call.target)) {
86 return f.getName() + ":0x" + Long.toHexString((Long) address);
87 }
88 } catch (Exception e) {
89 }
90 }
91 }
92 return CodeCacheProvider.super.getTargetName(call);
93 }
94
95 @Override
96 public RegisterConfig getRegisterConfig() {
97 return regConfig;
98 }
99
100 @Override
101 public int getMinimumOutgoingSize() {
102 return runtime.getConfig().runtimeCallStackSize;
103 }
104
105 private InstalledCode logOrDump(InstalledCode installedCode, CompiledCode compiledCode) {
106 ((HotSpotJVMCIRuntime) runtime).notifyInstall(this, installedCode, compiledCode);
107 return installedCode;
108 }
109
110 public InstalledCode installCode(ResolvedJavaMethod method, CompiledCode compiledCode, InstalledCode installedCode, SpeculationLog log, boolean isDefault) {
111 InstalledCode resultInstalledCode;
112 if (installedCode == null) {
113 if (method == null) {
114 // Must be a stub
115 resultInstalledCode = new HotSpotRuntimeStub(((HotSpotCompiledCode) compiledCode).getName());
116 } else {
117 resultInstalledCode = new HotSpotNmethod((HotSpotResolvedJavaMethod) method, ((HotSpotCompiledCode) compiledCode).getName(), isDefault);
118 }
119 } else {
120 resultInstalledCode = installedCode;
121 }
122
123 HotSpotSpeculationLog speculationLog = (log != null && log.hasSpeculations()) ? (HotSpotSpeculationLog) log : null;
124
125 int result = runtime.getCompilerToVM().installCode(target, (HotSpotCompiledCode) compiledCode, resultInstalledCode, speculationLog);
126 if (result != config.codeInstallResultOk) {
127 String resultDesc = config.getCodeInstallResultDescription(result);
128 if (compiledCode instanceof HotSpotCompiledNmethod) {
129 HotSpotCompiledNmethod compiledNmethod = (HotSpotCompiledNmethod) compiledCode;
130 String msg = compiledNmethod.getInstallationFailureMessage();
131 if (msg != null) {
132 msg = String.format("Code installation failed: %s%n%s", resultDesc, msg);
133 } else {
134 msg = String.format("Code installation failed: %s", resultDesc);
135 }
136 if (result == config.codeInstallResultDependenciesInvalid) {
137 throw new AssertionError(resultDesc + " " + msg);
138 }
139 throw new BailoutException(result != config.codeInstallResultDependenciesFailed, msg);
140 } else {
141 throw new BailoutException("Error installing %s: %s", ((HotSpotCompiledCode) compiledCode).getName(), resultDesc);
142 }
143 }
144 return logOrDump(resultInstalledCode, compiledCode);
145 }
146
147 public void invalidateInstalledCode(InstalledCode installedCode) {
148 runtime.getCompilerToVM().invalidateInstalledCode(installedCode);
149 }
150
151 @Override
152 public TargetDescription getTarget() {
153 return target;
154 }
155
156 public String disassemble(InstalledCode code) {
157 if (code.isValid()) {
158 return runtime.getCompilerToVM().disassembleCodeBlob(code);
159 }
160 return null;
161 }
162
163 public SpeculationLog createSpeculationLog() {
164 return new HotSpotSpeculationLog();
165 }
166
167 public long getMaxCallTargetOffset(long address) {
168 return runtime.getCompilerToVM().getMaxCallTargetOffset(address);
169 }
170
171 public boolean shouldDebugNonSafepoints() {
172 return runtime.getCompilerToVM().shouldDebugNonSafepoints();
173 }
174
175 public int interpreterFrameSize(BytecodeFrame pos) {
176 return runtime.getCompilerToVM().interpreterFrameSize(pos);
177 }
178
179 /**
180 * Resets all compilation statistics.
181 */
182 public void resetCompilationStatistics() {
183 runtime.getCompilerToVM().resetCompilationStatistics();
184 }
185 }