diff -r 103d1261f1f4 -r db357034b763 src/share/vm/jfr/writers/jfrWriterHost.hpp
--- a/src/share/vm/jfr/writers/jfrWriterHost.hpp	Fri Dec 06 12:42:29 2019 +0100
+++ b/src/share/vm/jfr/writers/jfrWriterHost.hpp	Tue Jun 16 11:03:04 2020 +0800
@@ -87,12 +87,12 @@
   void bytes(const void* buf, size_t len);
   void write_utf8_u2_len(const char* value);
   template <typename T>
-  void write_padded_at_offset(T value, intptr_t offset);
+  void write_padded_at_offset(T value, int64_t offset);
   template <typename T>
-  void write_at_offset(T value, intptr_t offset);
+  void write_at_offset(T value, int64_t offset);
   template <typename T>
-  void write_be_at_offset(T value, intptr_t offset);
-  intptr_t reserve(size_t size);
+  void write_be_at_offset(T value, int64_t offset);
+  int64_t reserve(size_t size);
 };
 
 #endif // SHARE_VM_JFR_WRITERS_JFRWRITERHOST_HPP