Mercurial > hg > truffle

diff agent/src/share/classes/sun/jvm/hotspot/code/NMethod.java @ 6972:bd7a7ce2e264

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6830717: replay of compilations would help with debugging Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method. Reviewed-by: kvn, twisti, sspitsyn Contributed-by: yumin.qi@oracle.com
author minqi
date Mon, 12 Nov 2012 14:03:53 -0800
parents 5a98bf7d847b
children 7b23cb975cf2
line wrap: on
line diff
--- a/agent/src/share/classes/sun/jvm/hotspot/code/NMethod.java	Fri Nov 09 08:36:17 2012 -0800
+++ b/agent/src/share/classes/sun/jvm/hotspot/code/NMethod.java	Mon Nov 12 14:03:53 2012 -0800
@@ -498,6 +498,42 @@
            method.getSignature().asString();
   }
 
+  public void dumpReplayData(PrintStream out) {
+    HashMap h = new HashMap();
+    for (int i = 1; i < getMetadataLength(); i++) {
+      Metadata meta = Metadata.instantiateWrapperFor(getMetadataAt(i));
+      System.err.println(meta);
+      if (h.get(meta) != null) continue;
+      h.put(meta, meta);
+      if (meta instanceof InstanceKlass) {
+        ((InstanceKlass)meta).dumpReplayData(out);
+      } else if (meta instanceof Method) {
+        ((Method)meta).dumpReplayData(out);
+        MethodData mdo = ((Method)meta).getMethodData();
+        if (mdo != null) {
+          mdo.dumpReplayData(out);
+        }
+      }
+    }
+    Method method = getMethod();
+    if (h.get(method) == null) {
+      method.dumpReplayData(out);
+      MethodData mdo = method.getMethodData();
+      if (mdo != null) {
+        mdo.dumpReplayData(out);
+      }
+    }
+    if (h.get(method.getMethodHolder()) == null) {
+      ((InstanceKlass)method.getMethodHolder()).dumpReplayData(out);
+    }
+    Klass holder = method.getMethodHolder();
+    out.println("compile " + holder.getName().asString() + " " +
+                OopUtilities.escapeString(method.getName().asString()) + " " +
+                method.getSignature().asString() + " " +
+                getEntryBCI());
+
+  }
+
   //--------------------------------------------------------------------------------
   // Internals only below this point
   //