diff -r 103d1261f1f4 -r db357034b763 src/share/vm/jfr/recorder/service/jfrRecorderService.cpp
--- a/src/share/vm/jfr/recorder/service/jfrRecorderService.cpp	Fri Dec 06 12:42:29 2019 +0100
+++ b/src/share/vm/jfr/recorder/service/jfrRecorderService.cpp	Tue Jun 16 11:03:04 2020 +0800
@@ -131,18 +131,18 @@
   bool not_acquired() const { return !_acquired; }
 };
 
-static intptr_t write_checkpoint_event_prologue(JfrChunkWriter& cw, u8 type_id) {
-  const intptr_t prev_cp_offset = cw.previous_checkpoint_offset();
-  const intptr_t prev_cp_relative_offset = 0 == prev_cp_offset ? 0 : prev_cp_offset - cw.current_offset();
+static int64_t write_checkpoint_event_prologue(JfrChunkWriter& cw, u8 type_id) {
+  const int64_t prev_cp_offset = cw.previous_checkpoint_offset();
+  const int64_t prev_cp_relative_offset = 0 == prev_cp_offset ? 0 : prev_cp_offset - cw.current_offset();
   cw.reserve(sizeof(u4));
   cw.write<u8>(EVENT_CHECKPOINT);
   cw.write(JfrTicks::now());
-  cw.write<jlong>((jlong)0);
-  cw.write<jlong>((jlong)prev_cp_relative_offset); // write previous checkpoint offset delta
+  cw.write((int64_t)0);
+  cw.write(prev_cp_relative_offset); // write previous checkpoint offset delta
   cw.write<bool>(false); // flushpoint
-  cw.write<u4>((u4)1); // nof types in this checkpoint
-  cw.write<u8>(type_id);
-  const intptr_t number_of_elements_offset = cw.current_offset();
+  cw.write((u4)1); // nof types in this checkpoint
+  cw.write(type_id);
+  const int64_t number_of_elements_offset = cw.current_offset();
   cw.reserve(sizeof(u4));
   return number_of_elements_offset;
 }
@@ -162,8 +162,8 @@
   }
   bool process() {
     // current_cp_offset is also offset for the event size header field
-    const intptr_t current_cp_offset = _cw.current_offset();
-    const intptr_t num_elements_offset = write_checkpoint_event_prologue(_cw, _type_id);
+    const int64_t current_cp_offset = _cw.current_offset();
+    const int64_t num_elements_offset = write_checkpoint_event_prologue(_cw, _type_id);
     // invocation
     _content_functor.process();
     const u4 number_of_elements = (u4)_content_functor.processed();
@@ -476,9 +476,9 @@
   JfrMetadataEvent::lock();
 }
 
-static jlong write_metadata_event(JfrChunkWriter& chunkwriter) {
+static int64_t write_metadata_event(JfrChunkWriter& chunkwriter) {
   assert(chunkwriter.is_valid(), "invariant");
-  const jlong metadata_offset = chunkwriter.current_offset();
+  const int64_t metadata_offset = chunkwriter.current_offset();
   JfrMetadataEvent::write(chunkwriter, metadata_offset);
   return metadata_offset;
 }