Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/TestDebugger.java @ 2433:abdfc822206f
7023069: G1: Introduce symmetric locking in the slow allocation path
7023151: G1: refactor the code that operates on _cur_alloc_region to be re-used for allocs by the GC threads
7018286: G1: humongous allocation attempts should take the GC locker into account
Summary: First, this change replaces the asymmetric locking scheme in the G1 slow alloc path by a summetric one. Second, it factors out the code that operates on _cur_alloc_region so that it can be re-used for allocations by the GC threads in the future.
Reviewed-by: stefank, brutisso, johnc
author | tonyp |
---|---|
date | Wed, 30 Mar 2011 10:26:59 -0400 |
parents | c18cbe5936b8 |
children | f6f3bb0ee072 |
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/* * Copyright (c) 2000, 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 sun.jvm.hotspot; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.debugger.dbx.*; // A test of the debugger backend. This should be used to connect to // the helloWorld.cpp program. public class TestDebugger { // FIXME: make these configurable, i.e., via a dotfile private static final String dbxPathName = "/export/home/kbr/ws/dbx_61/dev/Derived-sparcv9-S2./src/dbx/dbx"; private static final String[] dbxSvcAgentDSOPathNames = new String[] { "/export/home/kbr/main/sa_baseline/src/os/solaris/agent/libsvc_agent_dbx.so" }; private static void usage() { System.out.println("usage: java TestDebugger [pid]"); System.out.println("pid must be the process ID of the helloWorld process"); System.exit(1); } public static void main(String[] args) { try { if (args.length != 1) { usage(); } int pid = 0; try { pid = Integer.parseInt(args[0]); } catch (NumberFormatException e) { usage(); } JVMDebugger debugger = new DbxDebuggerLocal(new MachineDescriptionSPARC64Bit(), dbxPathName, dbxSvcAgentDSOPathNames, true); try { debugger.attach(pid); } catch (DebuggerException e) { System.err.print("Error attaching to process ID " + pid + ": "); if (e.getMessage() != null) { System.err.print(e.getMessage()); } System.err.println(); System.exit(1); } // HACK: configure debugger with primitive type sizes to get // Java types going debugger.configureJavaPrimitiveTypeSizes(1, 1, 2, 8, 4, 4, 8, 2); // FIXME: figure out how to canonicalize and/or eliminate // loadobject specification String loadObjectName = "-"; // long strAddr = debugger.lookup("helloWorld", "helloWorldString"); Address addr = debugger.lookup(loadObjectName, "helloWorldString"); if (addr == null) { System.err.println("Error looking up symbol \"helloWorldString\" in context \"" + loadObjectName + "\""); System.exit(1); } // This is a pointer which points to the start of storage. // Dereference it. addr = addr.getAddressAt(0); // Read the number of bytes we know we need int helloWorldLen = 13; byte[] data = new byte[helloWorldLen]; for (int i = 0; i < helloWorldLen; ++i) { data[i] = (byte) addr.getCIntegerAt(i, 1, false); } // Convert to characters char[] chars = new char[data.length]; for (int i = 0; i < data.length; ++i) { chars[i] = (char) data[i]; } String helloWorldStr = new String(chars); System.out.println("Successfully read string \"" + helloWorldStr + "\" from target process\n"); // Test all Java data types (see helloWorld.cpp) byte expectedByteValue = (byte) 132; short expectedShortValue = (short) 27890; int expectedIntValue = 1020304050; long expectedLongValue = 102030405060708090L; float expectedFloatValue = 35.4F; double expectedDoubleValue = 1.23456789; byte byteValue = 0; short shortValue = 0; int intValue = 0; long longValue = 0; float floatValue = 0; double doubleValue = 0; addr = debugger.lookup(loadObjectName, "testByte"); if (addr == null) { System.err.println("Error looking up symbol \"testByte\" in context \"" + loadObjectName + "\""); System.exit(1); } byteValue = addr.getJByteAt(0); if (byteValue != expectedByteValue) { System.err.println("Error: unexpected byte value (got " + byteValue + ", expected " + expectedByteValue + ")"); System.exit(1); } addr = debugger.lookup(loadObjectName, "testShort"); if (addr == null) { System.err.println("Error looking up symbol \"testShort\" in context \"" + loadObjectName + "\""); System.exit(1); } shortValue = addr.getJShortAt(0); if (shortValue != expectedShortValue) { System.err.println("Error: unexpected short value (got " + shortValue + ", expected " + expectedShortValue + ")"); System.exit(1); } addr = debugger.lookup(loadObjectName, "testInt"); if (addr == null) { System.err.println("Error looking up symbol \"testInt\" in context \"" + loadObjectName + "\""); System.exit(1); } intValue = addr.getJIntAt(0); if (intValue != expectedIntValue) { System.err.println("Error: unexpected int value (got " + intValue + ", expected " + expectedIntValue + ")"); System.exit(1); } addr = debugger.lookup(loadObjectName, "testLong"); if (addr == null) { System.err.println("Error looking up symbol \"testLong\" in context \"" + loadObjectName + "\""); System.exit(1); } longValue = addr.getJLongAt(0); if (longValue != expectedLongValue) { System.err.println("Error: unexpected long value (got " + longValue + ", expected " + expectedLongValue + ")"); System.exit(1); } addr = debugger.lookup(loadObjectName, "testFloat"); if (addr == null) { System.err.println("Error looking up symbol \"testFloat\" in context \"" + loadObjectName + "\""); System.exit(1); } floatValue = addr.getJFloatAt(0); if (floatValue != expectedFloatValue) { System.err.println("Error: unexpected float value (got " + floatValue + ", expected " + expectedFloatValue + ")"); System.exit(1); } addr = debugger.lookup(loadObjectName, "testDouble"); if (addr == null) { System.err.println("Error looking up symbol \"testDouble\" in context \"" + loadObjectName + "\""); System.exit(1); } doubleValue = addr.getJDoubleAt(0); if (doubleValue != expectedDoubleValue) { System.err.println("Error: unexpected double value (got " + doubleValue + ", expected " + expectedDoubleValue + ")"); System.exit(1); } System.err.println("All tests passed successfully."); debugger.detach(); } catch (AddressException e) { System.err.println("Error occurred during test:"); e.printStackTrace(); System.exit(1); } } }