| /* |
| * Copyright (c) 2013, 2016, 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 org.graalvm.compiler.code; |
| |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodHandles; |
| import java.util.Arrays; |
| |
| import jdk.vm.ci.code.CodeCacheProvider; |
| import jdk.vm.ci.code.CodeUtil; |
| import jdk.vm.ci.code.CodeUtil.DefaultRefMapFormatter; |
| import jdk.vm.ci.code.CodeUtil.RefMapFormatter; |
| import jdk.vm.ci.code.InstalledCode; |
| import jdk.vm.ci.code.Register; |
| import jdk.vm.ci.code.RegisterConfig; |
| import jdk.vm.ci.code.TargetDescription; |
| import jdk.vm.ci.code.site.Call; |
| import jdk.vm.ci.code.site.DataPatch; |
| import jdk.vm.ci.code.site.ExceptionHandler; |
| import jdk.vm.ci.code.site.Infopoint; |
| import jdk.vm.ci.code.site.Mark; |
| |
| import org.graalvm.compiler.serviceprovider.ServiceProvider; |
| |
| /** |
| * {@link HexCodeFile} based implementation of {@link DisassemblerProvider}. |
| */ |
| @ServiceProvider(DisassemblerProvider.class) |
| public class HexCodeFileDisassemblerProvider implements DisassemblerProvider { |
| |
| @Override |
| public String disassembleCompiledCode(CodeCacheProvider codeCache, CompilationResult compResult) { |
| assert compResult != null; |
| return disassemble(codeCache, compResult, null); |
| } |
| |
| @Override |
| public String getName() { |
| return "hcf"; |
| } |
| |
| @Override |
| public String disassembleInstalledCode(CodeCacheProvider codeCache, CompilationResult compResult, InstalledCode installedCode) { |
| assert installedCode != null; |
| return installedCode.isValid() ? disassemble(codeCache, compResult, installedCode) : null; |
| } |
| |
| private static String disassemble(CodeCacheProvider codeCache, CompilationResult compResult, InstalledCode installedCode) { |
| TargetDescription target = codeCache.getTarget(); |
| RegisterConfig regConfig = codeCache.getRegisterConfig(); |
| byte[] code = installedCode == null ? Arrays.copyOf(compResult.getTargetCode(), compResult.getTargetCodeSize()) : installedCode.getCode(); |
| if (code == null) { |
| // Method was deoptimized/invalidated |
| return ""; |
| } |
| long start = installedCode == null ? 0L : installedCode.getStart(); |
| HexCodeFile hcf = new HexCodeFile(code, start, target.arch.getName(), target.wordSize * 8); |
| if (compResult != null) { |
| HexCodeFile.addAnnotations(hcf, compResult.getAnnotations()); |
| addExceptionHandlersComment(compResult, hcf); |
| Register fp = regConfig.getFrameRegister(); |
| RefMapFormatter slotFormatter = new DefaultRefMapFormatter(target.wordSize, fp, 0); |
| for (Infopoint infopoint : compResult.getInfopoints()) { |
| if (infopoint instanceof Call) { |
| Call call = (Call) infopoint; |
| if (call.debugInfo != null) { |
| hcf.addComment(call.pcOffset + call.size, CodeUtil.append(new StringBuilder(100), call.debugInfo, slotFormatter).toString()); |
| } |
| addOperandComment(hcf, call.pcOffset, "{" + codeCache.getTargetName(call) + "}"); |
| } else { |
| if (infopoint.debugInfo != null) { |
| hcf.addComment(infopoint.pcOffset, CodeUtil.append(new StringBuilder(100), infopoint.debugInfo, slotFormatter).toString()); |
| } |
| addOperandComment(hcf, infopoint.pcOffset, "{infopoint: " + infopoint.reason + "}"); |
| } |
| } |
| for (DataPatch site : compResult.getDataPatches()) { |
| hcf.addOperandComment(site.pcOffset, "{" + site.reference.toString() + "}"); |
| } |
| for (Mark mark : compResult.getMarks()) { |
| hcf.addComment(mark.pcOffset, codeCache.getMarkName(mark)); |
| } |
| } |
| String hcfEmbeddedString = hcf.toEmbeddedString(); |
| return HexCodeFileDisTool.tryDisassemble(hcfEmbeddedString); |
| } |
| |
| private static void addExceptionHandlersComment(CompilationResult compResult, HexCodeFile hcf) { |
| if (!compResult.getExceptionHandlers().isEmpty()) { |
| String nl = HexCodeFile.NEW_LINE; |
| StringBuilder buf = new StringBuilder("------ Exception Handlers ------").append(nl); |
| for (ExceptionHandler e : compResult.getExceptionHandlers()) { |
| buf.append(" ").append(e.pcOffset).append(" -> ").append(e.handlerPos).append(nl); |
| hcf.addComment(e.pcOffset, "[exception -> " + e.handlerPos + "]"); |
| hcf.addComment(e.handlerPos, "[exception handler for " + e.pcOffset + "]"); |
| } |
| hcf.addComment(0, buf.toString()); |
| } |
| } |
| |
| private static void addOperandComment(HexCodeFile hcf, int pos, String comment) { |
| hcf.addOperandComment(pos, comment); |
| } |
| |
| /** |
| * Interface to the tool for disassembling an {@link HexCodeFile#toEmbeddedString() embedded} |
| * {@link HexCodeFile}. |
| */ |
| static class HexCodeFileDisTool { |
| static final MethodHandle processMethod; |
| |
| static { |
| MethodHandle toolMethod = null; |
| try { |
| Class<?> toolClass = Class.forName("com.oracle.max.hcfdis.HexCodeFileDis", true, ClassLoader.getSystemClassLoader()); |
| toolMethod = MethodHandles.lookup().unreflect(toolClass.getDeclaredMethod("processEmbeddedString", String.class)); |
| } catch (Exception e) { |
| // Tool not available on the class path |
| } |
| processMethod = toolMethod; |
| } |
| |
| public static String tryDisassemble(String hcfEmbeddedString) { |
| if (processMethod != null) { |
| try { |
| return (String) processMethod.invokeExact(hcfEmbeddedString); |
| } catch (Throwable e) { |
| // If the tool is available, for now let's be noisy when it fails |
| throw new InternalError(e); |
| } |
| } |
| return hcfEmbeddedString; |
| } |
| } |
| |
| } |