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 protected 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 Object address;
84 try {
85 address = f.get(runtime.getConfig());
86 if (address.equals(call.target)) {
87 return f.getName() + ":0x" + Long.toHexString((Long) address);
88 }
89 } catch (IllegalArgumentException | IllegalAccessException e) {
90 }
91 }
92 }
93 return CodeCacheProvider.super.getTargetName(call);
94 }
95
96 @Override
97 public RegisterConfig getRegisterConfig() {
98 return regConfig;
99 }
100
101 @Override
102 public int getMinimumOutgoingSize() {
103 return runtime.getConfig().runtimeCallStackSize;
104 }
105
106 private InstalledCode logOrDump(InstalledCode installedCode, CompiledCode compiledCode) {
107 ((HotSpotJVMCIRuntime) runtime).notifyInstall(this, installedCode, compiledCode);
108 return installedCode;
109 }
110
111 public InstalledCode installCode(ResolvedJavaMethod method, CompiledCode compiledCode, InstalledCode installedCode, SpeculationLog log, boolean isDefault) {
112 InstalledCode resultInstalledCode;
113 if (installedCode == null) {
114 if (method == null) {
115 // Must be a stub
116 resultInstalledCode = new HotSpotRuntimeStub(((HotSpotCompiledCode) compiledCode).getName());
117 } else {
118 resultInstalledCode = new HotSpotNmethod((HotSpotResolvedJavaMethod) method, ((HotSpotCompiledCode) compiledCode).getName(), isDefault);
119 }
120 } else {
121 resultInstalledCode = installedCode;
122 }
123
124 HotSpotSpeculationLog speculationLog = (log != null && log.hasSpeculations()) ? (HotSpotSpeculationLog) log : null;
125
126 int result = runtime.getCompilerToVM().installCode(target, (HotSpotCompiledCode) compiledCode, resultInstalledCode, speculationLog);
127 if (result != config.codeInstallResultOk) {
128 String resultDesc = config.getCodeInstallResultDescription(result);
129 if (compiledCode instanceof HotSpotCompiledNmethod) {
130 HotSpotCompiledNmethod compiledNmethod = (HotSpotCompiledNmethod) compiledCode;
131 String msg = compiledNmethod.getInstallationFailureMessage();
132 if (msg != null) {
133 msg = String.format("Code installation failed: %s%n%s", resultDesc, msg);
134 } else {
135 msg = String.format("Code installation failed: %s", resultDesc);
136 }
137 if (result == config.codeInstallResultDependenciesInvalid) {
138 throw new AssertionError(resultDesc + " " + msg);
139 }
140 throw new BailoutException(result != config.codeInstallResultDependenciesFailed, msg);
141 } else {
142 throw new BailoutException("Error installing %s: %s", ((HotSpotCompiledCode) compiledCode).getName(), resultDesc);
143 }
144 }
145 return logOrDump(resultInstalledCode, compiledCode);
146 }
147
148 public void invalidateInstalledCode(InstalledCode installedCode) {
149 runtime.getCompilerToVM().invalidateInstalledCode(installedCode);
150 }
151
152 @Override
153 public TargetDescription getTarget() {
154 return target;
155 }
156
157 public String disassemble(InstalledCode code) {
158 if (code.isValid()) {
159 return runtime.getCompilerToVM().disassembleCodeBlob(code);
160 }
161 return null;
162 }
163
164 public SpeculationLog createSpeculationLog() {
165 return new HotSpotSpeculationLog();
166 }
167
168 public long getMaxCallTargetOffset(long address) {
169 return runtime.getCompilerToVM().getMaxCallTargetOffset(address);
170 }
171
172 public boolean shouldDebugNonSafepoints() {
173 return runtime.getCompilerToVM().shouldDebugNonSafepoints();
174 }
175
176 public int interpreterFrameSize(BytecodeFrame pos) {
177 return runtime.getCompilerToVM().interpreterFrameSize(pos);
178 }
179
180 /**
181 * Resets all compilation statistics.
182 */
183 public void resetCompilationStatistics() {
184 runtime.getCompilerToVM().resetCompilationStatistics();
185 }
186 }