--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotCodeCacheProvider.java	Thu Oct 08 17:28:41 2015 -0700
@@ -0,0 +1,293 @@
+/*
+ * Copyright (c) 2013, 2015, 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.
+ */
+package jdk.vm.ci.hotspot;
+
+import static jdk.vm.ci.hotspot.HotSpotCompressedNullConstant.COMPRESSED_NULL;
+
+import java.lang.reflect.Field;
+
+import jdk.vm.ci.code.BailoutException;
+import jdk.vm.ci.code.CodeCacheProvider;
+import jdk.vm.ci.code.CompilationRequest;
+import jdk.vm.ci.code.CompilationResult;
+import jdk.vm.ci.code.CompilationResult.Call;
+import jdk.vm.ci.code.CompilationResult.ConstantReference;
+import jdk.vm.ci.code.CompilationResult.DataPatch;
+import jdk.vm.ci.code.CompilationResult.Mark;
+import jdk.vm.ci.code.DataSection;
+import jdk.vm.ci.code.DataSection.Data;
+import jdk.vm.ci.code.DataSection.DataBuilder;
+import jdk.vm.ci.code.InstalledCode;
+import jdk.vm.ci.code.RegisterConfig;
+import jdk.vm.ci.code.TargetDescription;
+import jdk.vm.ci.common.JVMCIError;
+import jdk.vm.ci.meta.Constant;
+import jdk.vm.ci.meta.JavaConstant;
+import jdk.vm.ci.meta.SerializableConstant;
+import jdk.vm.ci.meta.SpeculationLog;
+import jdk.vm.ci.meta.VMConstant;
+
+/**
+ * HotSpot implementation of {@link CodeCacheProvider}.
+ */
+public class HotSpotCodeCacheProvider implements CodeCacheProvider {
+
+    protected final HotSpotJVMCIRuntimeProvider runtime;
+    public final HotSpotVMConfig config;
+    protected final TargetDescription target;
+    protected final RegisterConfig regConfig;
+
+    public HotSpotCodeCacheProvider(HotSpotJVMCIRuntimeProvider runtime, HotSpotVMConfig config, TargetDescription target, RegisterConfig regConfig) {
+        this.runtime = runtime;
+        this.config = config;
+        this.target = target;
+        this.regConfig = regConfig;
+    }
+
+    @Override
+    public String getMarkName(Mark mark) {
+        int markId = (int) mark.id;
+        Field[] fields = runtime.getConfig().getClass().getDeclaredFields();
+        for (Field f : fields) {
+            if (f.getName().startsWith("MARKID_")) {
+                f.setAccessible(true);
+                try {
+                    if (f.getInt(runtime.getConfig()) == markId) {
+                        return f.getName();
+                    }
+                } catch (Exception e) {
+                }
+            }
+        }
+        return CodeCacheProvider.super.getMarkName(mark);
+    }
+
+    /**
+     * Decodes a call target to a mnemonic if possible.
+     */
+    @Override
+    public String getTargetName(Call call) {
+        Field[] fields = runtime.getConfig().getClass().getDeclaredFields();
+        for (Field f : fields) {
+            if (f.getName().endsWith("Stub")) {
+                f.setAccessible(true);
+                try {
+                    Object address = f.get(runtime.getConfig());
+                    if (address.equals(call.target)) {
+                        return f.getName() + ":0x" + Long.toHexString((Long) address);
+                    }
+                } catch (Exception e) {
+                }
+            }
+        }
+        return CodeCacheProvider.super.getTargetName(call);
+    }
+
+    @Override
+    public RegisterConfig getRegisterConfig() {
+        return regConfig;
+    }
+
+    @Override
+    public int getMinimumOutgoingSize() {
+        return runtime.getConfig().runtimeCallStackSize;
+    }
+
+    private InstalledCode logOrDump(InstalledCode installedCode, CompilationResult compResult) {
+        ((HotSpotJVMCIRuntime) runtime).notifyInstall(this, installedCode, compResult);
+        return installedCode;
+    }
+
+    public InstalledCode installCode(CompilationRequest compRequest, CompilationResult compResult, InstalledCode installedCode, SpeculationLog log, boolean isDefault) {
+        HotSpotResolvedJavaMethod method = compRequest != null ? (HotSpotResolvedJavaMethod) compRequest.getMethod() : null;
+        InstalledCode resultInstalledCode;
+        if (installedCode == null) {
+            if (method == null) {
+                // Must be a stub
+                resultInstalledCode = new HotSpotRuntimeStub(compResult.getName());
+            } else {
+                resultInstalledCode = new HotSpotNmethod(method, compResult.getName(), isDefault);
+            }
+        } else {
+            resultInstalledCode = installedCode;
+        }
+        HotSpotCompiledCode compiledCode;
+        if (method != null) {
+            final int id;
+            final long jvmciEnv;
+            if (compRequest instanceof HotSpotCompilationRequest) {
+                HotSpotCompilationRequest hsCompRequest = (HotSpotCompilationRequest) compRequest;
+                id = hsCompRequest.getId();
+                jvmciEnv = hsCompRequest.getJvmciEnv();
+            } else {
+                id = method.allocateCompileId(compRequest.getEntryBCI());
+                jvmciEnv = 0L;
+            }
+            compiledCode = new HotSpotCompiledNmethod(method, compResult, id, jvmciEnv);
+        } else {
+            compiledCode = new HotSpotCompiledCode(compResult);
+        }
+        int result = runtime.getCompilerToVM().installCode(target, compiledCode, resultInstalledCode, log);
+        if (result != config.codeInstallResultOk) {
+            String resultDesc = config.getCodeInstallResultDescription(result);
+            if (compiledCode instanceof HotSpotCompiledNmethod) {
+                HotSpotCompiledNmethod compiledNmethod = (HotSpotCompiledNmethod) compiledCode;
+                String msg = compiledNmethod.getInstallationFailureMessage();
+                if (msg != null) {
+                    msg = String.format("Code installation failed: %s%n%s", resultDesc, msg);
+                } else {
+                    msg = String.format("Code installation failed: %s", resultDesc);
+                }
+                if (result == config.codeInstallResultDependenciesInvalid) {
+                    throw new AssertionError(resultDesc + " " + msg);
+                }
+                throw new BailoutException(result != config.codeInstallResultDependenciesFailed, msg);
+            } else {
+                throw new BailoutException("Error installing %s: %s", compResult.getName(), resultDesc);
+            }
+        }
+        return logOrDump(resultInstalledCode, compResult);
+    }
+
+    public void invalidateInstalledCode(InstalledCode installedCode) {
+        runtime.getCompilerToVM().invalidateInstalledCode(installedCode);
+    }
+
+    public boolean needsDataPatch(JavaConstant constant) {
+        return constant instanceof HotSpotMetaspaceConstant;
+    }
+
+    private Data createSingleDataItem(Constant constant) {
+        int size;
+        DataBuilder builder;
+        if (constant instanceof VMConstant) {
+            VMConstant vmConstant = (VMConstant) constant;
+            boolean compressed;
+            if (constant instanceof HotSpotConstant) {
+                HotSpotConstant c = (HotSpotConstant) vmConstant;
+                compressed = c.isCompressed();
+            } else {
+                throw new JVMCIError(String.valueOf(constant));
+            }
+
+            size = compressed ? 4 : target.wordSize;
+            if (size == 4) {
+                builder = (buffer, patch) -> {
+                    patch.accept(new DataPatch(buffer.position(), new ConstantReference(vmConstant)));
+                    buffer.putInt(0xDEADDEAD);
+                };
+            } else {
+                assert size == 8;
+                builder = (buffer, patch) -> {
+                    patch.accept(new DataPatch(buffer.position(), new ConstantReference(vmConstant)));
+                    buffer.putLong(0xDEADDEADDEADDEADL);
+                };
+            }
+        } else if (JavaConstant.isNull(constant)) {
+            boolean compressed = COMPRESSED_NULL.equals(constant);
+            size = compressed ? 4 : target.wordSize;
+            builder = DataBuilder.zero(size);
+        } else if (constant instanceof SerializableConstant) {
+            SerializableConstant s = (SerializableConstant) constant;
+            size = s.getSerializedSize();
+            builder = DataBuilder.serializable(s);
+        } else {
+            throw new JVMCIError(String.valueOf(constant));
+        }
+
+        return new Data(size, size, builder);
+    }
+
+    public Data createDataItem(Constant... constants) {
+        assert constants.length > 0;
+        if (constants.length == 1) {
+            return createSingleDataItem(constants[0]);
+        } else {
+            DataBuilder[] builders = new DataBuilder[constants.length];
+            int size = 0;
+            int alignment = 1;
+            for (int i = 0; i < constants.length; i++) {
+                Data data = createSingleDataItem(constants[i]);
+
+                assert size % data.getAlignment() == 0 : "invalid alignment in packed constants";
+                alignment = DataSection.lcm(alignment, data.getAlignment());
+
+                builders[i] = data.getBuilder();
+                size += data.getSize();
+            }
+            DataBuilder ret = (buffer, patches) -> {
+                for (DataBuilder b : builders) {
+                    b.emit(buffer, patches);
+                }
+            };
+            return new Data(alignment, size, ret);
+        }
+    }
+
+    @Override
+    public TargetDescription getTarget() {
+        return target;
+    }
+
+    public String disassemble(InstalledCode code) {
+        if (code.isValid()) {
+            return runtime.getCompilerToVM().disassembleCodeBlob(code);
+        }
+        return null;
+    }
+
+    public SpeculationLog createSpeculationLog() {
+        return new HotSpotSpeculationLog();
+    }
+
+    public long getMaxCallTargetOffset(long address) {
+        return runtime.getCompilerToVM().getMaxCallTargetOffset(address);
+    }
+
+    public boolean shouldDebugNonSafepoints() {
+        return runtime.getCompilerToVM().shouldDebugNonSafepoints();
+    }
+
+    /**
+     * Notifies the VM of statistics for a completed compilation.
+     *
+     * @param id the identifier of the compilation
+     * @param method the method compiled
+     * @param osr specifies if the compilation was for on-stack-replacement
+     * @param processedBytecodes the number of bytecodes processed during the compilation, including
+     *            the bytecodes of all inlined methods
+     * @param time the amount time spent compiling {@code method}
+     * @param timeUnitsPerSecond the granularity of the units for the {@code time} value
+     * @param installedCode the nmethod installed as a result of the compilation
+     */
+    public void notifyCompilationStatistics(int id, HotSpotResolvedJavaMethod method, boolean osr, int processedBytecodes, long time, long timeUnitsPerSecond, InstalledCode installedCode) {
+        runtime.getCompilerToVM().notifyCompilationStatistics(id, (HotSpotResolvedJavaMethodImpl) method, osr, processedBytecodes, time, timeUnitsPerSecond, installedCode);
+    }
+
+    /**
+     * Resets all compilation statistics.
+     */
+    public void resetCompilationStatistics() {
+        runtime.getCompilerToVM().resetCompilationStatistics();
+    }
+}