1 /*
2 * Copyright (c) 2013, 2015, 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 int result = runtime.getCompilerToVM().installCode(target, (HotSpotCompiledCode) compiledCode, resultInstalledCode, (HotSpotSpeculationLog) log);
124 if (result != config.codeInstallResultOk) {
125 String resultDesc = config.getCodeInstallResultDescription(result);
126 if (compiledCode instanceof HotSpotCompiledNmethod) {
127 HotSpotCompiledNmethod compiledNmethod = (HotSpotCompiledNmethod) compiledCode;
128 String msg = compiledNmethod.getInstallationFailureMessage();
129 if (msg != null) {
130 msg = String.format("Code installation failed: %s%n%s", resultDesc, msg);
131 } else {
132 msg = String.format("Code installation failed: %s", resultDesc);
133 }
134 if (result == config.codeInstallResultDependenciesInvalid) {
135 throw new AssertionError(resultDesc + " " + msg);
136 }
137 throw new BailoutException(result != config.codeInstallResultDependenciesFailed, msg);
138 } else {
139 throw new BailoutException("Error installing %s: %s", ((HotSpotCompiledCode) compiledCode).getName(), resultDesc);
140 }
141 }
142 return logOrDump(resultInstalledCode, compiledCode);
143 }
144
145 public void invalidateInstalledCode(InstalledCode installedCode) {
146 runtime.getCompilerToVM().invalidateInstalledCode(installedCode);
147 }
148
149 @Override
150 public TargetDescription getTarget() {
151 return target;
152 }
153
154 public String disassemble(InstalledCode code) {
155 if (code.isValid()) {
156 return runtime.getCompilerToVM().disassembleCodeBlob(code);
157 }
158 return null;
159 }
160
161 public SpeculationLog createSpeculationLog() {
162 return new HotSpotSpeculationLog();
163 }
164
165 public long getMaxCallTargetOffset(long address) {
166 return runtime.getCompilerToVM().getMaxCallTargetOffset(address);
167 }
168
169 public boolean shouldDebugNonSafepoints() {
170 return runtime.getCompilerToVM().shouldDebugNonSafepoints();
171 }
172
173 /**
174 * Notifies the VM of statistics for a completed compilation.
175 *
176 * @param id the identifier of the compilation
177 * @param method the method compiled
178 * @param osr specifies if the compilation was for on-stack-replacement
179 * @param processedBytecodes the number of bytecodes processed during the compilation, including
180 * the bytecodes of all inlined methods
181 * @param time the amount time spent compiling {@code method}
182 * @param timeUnitsPerSecond the granularity of the units for the {@code time} value
183 * @param installedCode the nmethod installed as a result of the compilation
184 */
185 public void notifyCompilationStatistics(int id, HotSpotResolvedJavaMethod method, boolean osr, int processedBytecodes, long time, long timeUnitsPerSecond, InstalledCode installedCode) {
186 runtime.getCompilerToVM().notifyCompilationStatistics(id, (HotSpotResolvedJavaMethodImpl) method, osr, processedBytecodes, time, timeUnitsPerSecond, installedCode);
187 }
188
189 public int interpreterFrameSize(BytecodeFrame pos) {
190 return runtime.getCompilerToVM().interpreterFrameSize(pos);
191 }
192
193 /**
194 * Resets all compilation statistics.
195 */
196 public void resetCompilationStatistics() {
197 runtime.getCompilerToVM().resetCompilationStatistics();
198 }
199 }