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diff src/share/vm/memory/metaspaceShared.hpp @ 20586:03e6d34be1f5

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8038268: VM Crashes in MetaspaceShared::generate_vtable_methods while creating CDS archive with limiting SharedMiscCodeSize Summary: estimate the minimum required size for the misc code region and check if the specified misc code region size meets the minimum size requirement Reviewed-by: jiangli, dholmes
author ccheung
date Thu, 30 Oct 2014 13:38:00 -0700
parents b23a19cd0536
children 4cb90023bf2b
line wrap: on
line diff
--- a/src/share/vm/memory/metaspaceShared.hpp	Fri Oct 24 10:28:19 2014 -0700
+++ b/src/share/vm/memory/metaspaceShared.hpp	Thu Oct 30 13:38:00 2014 -0700
@@ -57,11 +57,16 @@
   static bool _archive_loading_failed;
  public:
   enum {
-    vtbl_list_size = 17, // number of entries in the shared space vtable list.
-    num_virtuals = 200   // maximum number of virtual functions
-                         // If virtual functions are added to Metadata,
-                         // this number needs to be increased.  Also,
-                         // SharedMiscCodeSize will need to be increased.
+    vtbl_list_size         = 17,   // number of entries in the shared space vtable list.
+    num_virtuals           = 200,  // maximum number of virtual functions
+                                   // If virtual functions are added to Metadata,
+                                   // this number needs to be increased.  Also,
+                                   // SharedMiscCodeSize will need to be increased.
+                                   // The following 2 sizes were based on
+                                   // MetaspaceShared::generate_vtable_methods()
+    vtbl_method_size       = 16,   // conservative size of the mov1 and jmp instructions
+                                   // for the x64 platform
+    vtbl_common_code_size  = (1*K) // conservative size of the "common_code" for the x64 platform
   };
 
   enum {