diff src/share/vm/prims/whitebox.cpp @ 12233:40136aa2cdb1

8010722: assert: failed: heap size is too big for compressed oops Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation. Reviewed-by: stefank, dholmes
author tschatzl
date Wed, 11 Sep 2013 16:25:02 +0200
parents 5fd8e2fbafd4
children 9d8b29a0548c 8f07aa079343
line wrap: on
line diff
--- a/src/share/vm/prims/whitebox.cpp	Wed Sep 11 12:03:41 2013 +0200
+++ b/src/share/vm/prims/whitebox.cpp	Wed Sep 11 16:25:02 2013 +0200
@@ -33,6 +33,7 @@
 #include "prims/whitebox.hpp"
 #include "prims/wbtestmethods/parserTests.hpp"
 
+#include "runtime/arguments.hpp"
 #include "runtime/interfaceSupport.hpp"
 #include "runtime/os.hpp"
 #include "utilities/debug.hpp"
@@ -94,6 +95,11 @@
   return closure.found();
 WB_END
 
+WB_ENTRY(jlong, WB_GetCompressedOopsMaxHeapSize(JNIEnv* env, jobject o)) {
+  return (jlong)Arguments::max_heap_for_compressed_oops();
+}
+WB_END
+
 WB_ENTRY(void, WB_PrintHeapSizes(JNIEnv* env, jobject o)) {
   CollectorPolicy * p = Universe::heap()->collector_policy();
   gclog_or_tty->print_cr("Minimum heap "SIZE_FORMAT" Initial heap "
@@ -436,6 +442,8 @@
       CC"(Ljava/lang/String;[Lsun/hotspot/parser/DiagnosticCommand;)[Ljava/lang/Object;",
       (void*) &WB_ParseCommandLine
   },
+  {CC"getCompressedOopsMaxHeapSize", CC"()J",
+      (void*)&WB_GetCompressedOopsMaxHeapSize},
   {CC"printHeapSizes",     CC"()V",                   (void*)&WB_PrintHeapSizes    },
 #if INCLUDE_ALL_GCS
   {CC"g1InConcurrentMark", CC"()Z",                   (void*)&WB_G1InConcurrentMark},