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diff src/share/vm/runtime/compilationPolicy.cpp @ 6972:bd7a7ce2e264

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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 18fb7da42534
children 2cb439954abf b84fd7d73702 aeaca88565e6
line wrap: on
line diff
--- a/src/share/vm/runtime/compilationPolicy.cpp	Fri Nov 09 08:36:17 2012 -0800
+++ b/src/share/vm/runtime/compilationPolicy.cpp	Mon Nov 12 14:03:53 2012 -0800
@@ -97,6 +97,9 @@
 // This is intended to force compiles for methods (usually for
 // debugging) that would otherwise be interpreted for some reason.
 bool CompilationPolicy::must_be_compiled(methodHandle m, int comp_level) {
+  // Don't allow Xcomp to cause compiles in replay mode
+  if (ReplayCompiles) return false;
+
   if (m->has_compiled_code()) return false;       // already compiled
   if (!can_be_compiled(m, comp_level)) return false;
 
@@ -322,6 +325,16 @@
       return NULL;
     }
   }
+  if (CompileTheWorld || ReplayCompiles) {
+    // Don't trigger other compiles in testing mode
+    if (bci == InvocationEntryBci) {
+      reset_counter_for_invocation_event(method);
+    } else {
+      reset_counter_for_back_branch_event(method);
+    }
+    return NULL;
+  }
+
   if (bci == InvocationEntryBci) {
     // when code cache is full, compilation gets switched off, UseCompiler
     // is set to false