Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/debugger/linux/LinuxCDebugger.java @ 210:05712c37c828
6676016: ParallelOldGC leaks memory
Summary: ensure that GCTask threads release resource and handle memory
Reviewed-by: jmasa, chrisphi
author | jcoomes |
---|---|
date | Wed, 18 Jun 2008 18:36:47 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2003-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.debugger.linux; import java.io.*; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.debugger.cdbg.*; import sun.jvm.hotspot.debugger.x86.*; import sun.jvm.hotspot.debugger.amd64.*; import sun.jvm.hotspot.debugger.sparc.*; import sun.jvm.hotspot.debugger.linux.x86.*; import sun.jvm.hotspot.debugger.linux.amd64.*; import sun.jvm.hotspot.debugger.linux.sparc.*; import sun.jvm.hotspot.utilities.*; class LinuxCDebugger implements CDebugger { private LinuxDebugger dbg; LinuxCDebugger(LinuxDebugger dbg) { this.dbg = dbg; } public List getThreadList() throws DebuggerException { return dbg.getThreadList(); } public List/*<LoadObject>*/ getLoadObjectList() throws DebuggerException { return dbg.getLoadObjectList(); } public LoadObject loadObjectContainingPC(Address pc) throws DebuggerException { if (pc == null) { return null; } List objs = getLoadObjectList(); Object[] arr = objs.toArray(); // load objects are sorted by base address, do binary search int mid = -1; int low = 0; int high = arr.length - 1; while (low <= high) { mid = (low + high) >> 1; LoadObject midVal = (LoadObject) arr[mid]; long cmp = pc.minus(midVal.getBase()); if (cmp < 0) { high = mid - 1; } else if (cmp > 0) { long size = midVal.getSize(); if (cmp >= size) { low = mid + 1; } else { return (LoadObject) arr[mid]; } } else { // match found return (LoadObject) arr[mid]; } } // no match found. return null; } public CFrame topFrameForThread(ThreadProxy thread) throws DebuggerException { String cpu = dbg.getCPU(); if (cpu.equals("x86")) { X86ThreadContext context = (X86ThreadContext) thread.getContext(); Address ebp = context.getRegisterAsAddress(X86ThreadContext.EBP); if (ebp == null) return null; Address pc = context.getRegisterAsAddress(X86ThreadContext.EIP); if (pc == null) return null; return new LinuxX86CFrame(dbg, ebp, pc); } else if (cpu.equals("amd64")) { AMD64ThreadContext context = (AMD64ThreadContext) thread.getContext(); Address rbp = context.getRegisterAsAddress(AMD64ThreadContext.RBP); if (rbp == null) return null; Address pc = context.getRegisterAsAddress(AMD64ThreadContext.RIP); if (pc == null) return null; return new LinuxAMD64CFrame(dbg, rbp, pc); } else if (cpu.equals("sparc")) { SPARCThreadContext context = (SPARCThreadContext) thread.getContext(); Address sp = context.getRegisterAsAddress(SPARCThreadContext.R_SP); if (sp == null) return null; Address pc = context.getRegisterAsAddress(SPARCThreadContext.R_O7); if (pc == null) return null; return new LinuxSPARCCFrame(dbg, sp, pc, LinuxDebuggerLocal.getAddressSize()); } else { throw new DebuggerException(cpu + " is not yet supported"); } } public String getNameOfFile(String fileName) { return new File(fileName).getName(); } public ProcessControl getProcessControl() throws DebuggerException { // FIXME: after stabs parser return null; } public boolean canDemangle() { return false; } public String demangle(String sym) { throw new UnsupportedOperationException(); } }