changeset 45371:5d0b68ea07c3

6760477: Update SA to include stack traces in the heap dump Summary: Update SA to include HPROF_TRACE and HPROF_FRAME records in the heap dump Reviewed-by: dsamersoff Contributed-by: sharath.ballal@oracle.com
author sballal
date Fri, 02 Jun 2017 12:30:49 +0530
parents b0f2b8ff25a2
children c23a385a6089
files hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/JavaThread.java hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/StackFrameInfo.java hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/ThreadStackTrace.java hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/utilities/HeapHprofBinWriter.java hotspot/src/share/vm/runtime/vmStructs.cpp
diffstat 5 files changed, 213 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/JavaThread.java	Wed Jul 05 23:33:53 2017 +0200
+++ b/hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/JavaThread.java	Fri Jun 02 12:30:49 2017 +0530
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2017, 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
@@ -50,6 +50,7 @@
   private static AddressField  osThreadField;
   private static AddressField  stackBaseField;
   private static CIntegerField stackSizeField;
+  private static CIntegerField terminatedField;
 
   private static JavaThreadPDAccess access;
 
@@ -66,6 +67,9 @@
   private static int           BLOCKED;
   private static int           BLOCKED_TRANS;
 
+  private static int           NOT_TERMINATED;
+  private static int           EXITING;
+
   static {
     VM.registerVMInitializedObserver(new Observer() {
         public void update(Observable o, Object data) {
@@ -87,6 +91,7 @@
     osThreadField     = type.getAddressField("_osthread");
     stackBaseField    = type.getAddressField("_stack_base");
     stackSizeField    = type.getCIntegerField("_stack_size");
+    terminatedField   = type.getCIntegerField("_terminated");
 
     UNINITIALIZED     = db.lookupIntConstant("_thread_uninitialized").intValue();
     NEW               = db.lookupIntConstant("_thread_new").intValue();
@@ -99,6 +104,10 @@
     IN_JAVA_TRANS     = db.lookupIntConstant("_thread_in_Java_trans").intValue();
     BLOCKED           = db.lookupIntConstant("_thread_blocked").intValue();
     BLOCKED_TRANS     = db.lookupIntConstant("_thread_blocked_trans").intValue();
+
+    NOT_TERMINATED    = db.lookupIntConstant("JavaThread::_not_terminated").intValue();
+    EXITING           = db.lookupIntConstant("JavaThread::_thread_exiting").intValue();
+
   }
 
   public JavaThread(Address addr) {
@@ -128,6 +137,14 @@
       example, "SolarisSPARCCompilerThread".) */
   public boolean isJavaThread() { return true; }
 
+  public boolean isExiting () {
+      return (getTerminated() == EXITING) || isTerminated();
+  }
+
+  public boolean isTerminated() {
+      return (getTerminated() != NOT_TERMINATED) && (getTerminated() != EXITING);
+  }
+
   public static AddressField getAnchorField() { return anchorField; }
 
   /** Get the last Java stack pointer */
@@ -329,6 +346,10 @@
     return stackSizeField.getValue(addr);
   }
 
+  public int getTerminated() {
+      return (int) terminatedField.getValue(addr);
+  }
+
   /** Gets the Java-side thread object for this JavaThread */
   public Oop getThreadObj() {
     Oop obj = null;
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/StackFrameInfo.java	Fri Jun 02 12:30:49 2017 +0530
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2017, 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.runtime;
+
+import sun.jvm.hotspot.oops.*;
+
+public class StackFrameInfo {
+    private Method      method;
+    int                 bci;
+    Oop                 classHolder;
+
+    public StackFrameInfo(JavaVFrame vf) {
+        this.method = vf.getMethod();
+        this.bci = vf.getBCI();
+    }
+
+    public Method getMethod() {
+        return method;
+    }
+
+    public int getBCI() {
+        return bci;
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/ThreadStackTrace.java	Fri Jun 02 12:30:49 2017 +0530
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2017, 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.runtime;
+
+import java.util.*;
+
+public class ThreadStackTrace {
+    private JavaThread                        thread;
+    private int                               depth;  // number of stack frames added
+    private ArrayList<StackFrameInfo>         frames;
+
+    public ThreadStackTrace(JavaThread t) {
+        this.thread = t;
+        this.depth = 0;
+        this.frames = new ArrayList<StackFrameInfo>();
+    }
+
+    public int getStackDepth() {
+        return depth;
+    }
+
+    public StackFrameInfo stackFrameAt(int index) {
+        return frames.get(index);
+    }
+
+    public void dumpStack(int maxDepth) {
+        if (!thread.isJavaThread()) {
+            System.out.println("dumpStack: not java Thread returning");
+            return;
+        }
+        try {
+            for (JavaVFrame vf = thread.getLastJavaVFrameDbg(); vf != null; vf = vf.javaSender()) {
+                StackFrameInfo frame = new StackFrameInfo(vf);
+                frames.add(frame);
+                depth++;
+
+                if (maxDepth > 0 && depth == maxDepth) {
+                    // Skip frames if more than maxDepth
+                    break;
+                }
+            }
+        } catch (Exception e) {
+            System.out.println("Error occurred during stack walking:");
+            e.printStackTrace();
+        }
+    }
+}
--- a/hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/utilities/HeapHprofBinWriter.java	Wed Jul 05 23:33:53 2017 +0200
+++ b/hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/utilities/HeapHprofBinWriter.java	Fri Jun 02 12:30:49 2017 +0530
@@ -379,6 +379,10 @@
     private static final long MAX_U4_VALUE = 0xFFFFFFFFL;
     int serialNum = 1;
 
+    public HeapHprofBinWriter() {
+        this.KlassMap = new ArrayList<Klass>();
+    }
+
     public synchronized void write(String fileName) throws IOException {
         // open file stream and create buffered data output stream
         fos = new FileOutputStream(fileName);
@@ -426,6 +430,9 @@
         // HPROF_LOAD_CLASS records for all classes
         writeClasses();
 
+        // write HPROF_FRAME and HPROF_TRACE records
+        dumpStackTraces();
+
         // write CLASS_DUMP records
         writeClassDumpRecords();
 
@@ -700,6 +707,67 @@
         }
     }
 
+    private void dumpStackTraces() throws IOException {
+        // write a HPROF_TRACE record without any frames to be referenced as object alloc sites
+        writeHeader(HPROF_TRACE, 3 * (int)INT_SIZE );
+        out.writeInt(DUMMY_STACK_TRACE_ID);
+        out.writeInt(0);                    // thread number
+        out.writeInt(0);                    // frame count
+
+        int frameSerialNum = 0;
+        int numThreads = 0;
+        Threads threads = VM.getVM().getThreads();
+
+        for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) {
+            Oop threadObj = thread.getThreadObj();
+            if (threadObj != null && !thread.isExiting() && !thread.isHiddenFromExternalView()) {
+
+                // dump thread stack trace
+                ThreadStackTrace st = new ThreadStackTrace(thread);
+                st.dumpStack(-1);
+                numThreads++;
+
+                // write HPROF_FRAME records for this thread's stack trace
+                int depth = st.getStackDepth();
+                int threadFrameStart = frameSerialNum;
+                for (int j=0; j < depth; j++) {
+                    StackFrameInfo frame = st.stackFrameAt(j);
+                    Method m = frame.getMethod();
+                    int classSerialNum = KlassMap.indexOf(m.getMethodHolder()) + 1;
+                    // the class serial number starts from 1
+                    assert classSerialNum > 0:"class not found";
+                    dumpStackFrame(++frameSerialNum, classSerialNum, m, frame.getBCI());
+                }
+
+                // write HPROF_TRACE record for one thread
+                writeHeader(HPROF_TRACE, 3 * (int)INT_SIZE + depth * (int)VM.getVM().getOopSize());
+                int stackSerialNum = numThreads + DUMMY_STACK_TRACE_ID;
+                out.writeInt(stackSerialNum);      // stack trace serial number
+                out.writeInt(numThreads);          // thread serial number
+                out.writeInt(depth);               // frame count
+                for (int j=1; j <= depth; j++) {
+                    writeObjectID(threadFrameStart + j);
+                }
+            }
+        }
+    }
+
+    private void dumpStackFrame(int frameSN, int classSN, Method m, int bci) throws IOException {
+        int lineNumber;
+        if (m.isNative()) {
+            lineNumber = -3; // native frame
+        } else {
+            lineNumber = m.getLineNumberFromBCI(bci);
+        }
+        writeHeader(HPROF_FRAME, 4 * (int)VM.getVM().getOopSize() + 2 * (int)INT_SIZE);
+        writeObjectID(frameSN);                                  // frame serial number
+        writeSymbolID(m.getName());                              // method's name
+        writeSymbolID(m.getSignature());                         // method's signature
+        writeSymbolID(m.getMethodHolder().getSourceFileName());  // source file name
+        out.writeInt(classSN);                                   // class serial number
+        out.writeInt(lineNumber);                                // line number
+    }
+
     protected void writeJavaThread(JavaThread jt, int index) throws IOException {
         out.writeByte((byte) HPROF_GC_ROOT_THREAD_OBJ);
         writeObjectID(jt.getThreadObj());
@@ -1030,6 +1098,7 @@
                         writeHeader(HPROF_LOAD_CLASS, 2 * (OBJ_ID_SIZE + 4));
                         out.writeInt(serialNum);
                         writeObjectID(clazz);
+                        KlassMap.add(serialNum - 1, k);
                         out.writeInt(DUMMY_STACK_TRACE_ID);
                         writeSymbolID(k.getName());
                         serialNum++;
@@ -1045,6 +1114,7 @@
                         writeHeader(HPROF_LOAD_CLASS, 2 * (OBJ_ID_SIZE + 4));
                         out.writeInt(serialNum);
                         writeObjectID(clazz);
+                        KlassMap.add(serialNum - 1, k);
                         out.writeInt(DUMMY_STACK_TRACE_ID);
                         writeSymbolID(k.getName());
                         serialNum++;
@@ -1157,6 +1227,7 @@
     private Debugger dbg;
     private ObjectHeap objectHeap;
     private SymbolTable symTbl;
+    private ArrayList<Klass> KlassMap;
 
     // oopSize of the debuggee
     private int OBJ_ID_SIZE;
--- a/hotspot/src/share/vm/runtime/vmStructs.cpp	Wed Jul 05 23:33:53 2017 +0200
+++ b/hotspot/src/share/vm/runtime/vmStructs.cpp	Fri Jun 02 12:30:49 2017 +0530
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2017, 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
@@ -971,6 +971,7 @@
   nonstatic_field(JavaThread,                  _vframe_array_last,                            vframeArray*)                          \
   nonstatic_field(JavaThread,                  _satb_mark_queue,                              SATBMarkQueue)                         \
   nonstatic_field(JavaThread,                  _dirty_card_queue,                             DirtyCardQueue)                        \
+  volatile_nonstatic_field(JavaThread,         _terminated,                                   JavaThread::TerminatedTypes)           \
   nonstatic_field(Thread,                      _resource_area,                                ResourceArea*)                         \
   nonstatic_field(CompilerThread,              _env,                                          ciEnv*)                                \
                                                                                                                                      \
@@ -2213,6 +2214,7 @@
   declare_toplevel_type(JavaThread*)                                      \
   declare_toplevel_type(java_lang_Class)                                  \
   declare_integer_type(JavaThread::AsyncRequests)                         \
+  declare_integer_type(JavaThread::TerminatedTypes)                       \
   declare_toplevel_type(jbyte*)                                           \
   declare_toplevel_type(jbyte**)                                          \
   declare_toplevel_type(jint*)                                            \
@@ -2435,6 +2437,8 @@
   declare_constant(_thread_in_Java_trans)                                 \
   declare_constant(_thread_blocked)                                       \
   declare_constant(_thread_blocked_trans)                                 \
+  declare_constant(JavaThread::_not_terminated)                           \
+  declare_constant(JavaThread::_thread_exiting)                           \
                                                                           \
   /******************************/                                        \
   /* Klass misc. enum constants */                                        \