src/hotspot/share/utilities/vmError.cpp

rev 52073 : 8211852: inspect stack during error reporting
Reviewed-by: dholmes

*** 754,763 ****
--- 754,781 ----
       if (_verbose && _context) {
         os::print_context(st, _context);
         st->cr();
       }
  
+   STEP("inspecting top of stack")
+ 
+      // decode stack contents if possible
+      if (_verbose && _context && Universe::is_fully_initialized()) {
+        frame fr = os::fetch_frame_from_context(_context);
+        const int slots = 8;
+        const intptr_t *start = fr.sp();
+        const intptr_t *end = start + slots;
+        if (is_aligned(start, sizeof(intptr_t)) && os::is_readable_range(start, end)) {
+          st->print_cr("Stack slot to memory mapping:");
+          for (int i = 0; i < slots; ++i) {
+            st->print("stack at sp + %d slots: ", i);
+            os::print_location(st, *(start + i));
+          }
+        }
+        st->cr();
+      }
+ 
    STEP("printing code blob if possible")
  
       if (_verbose && _context) {
         CodeBlob* cb = CodeCache::find_blob(_pc);
         if (cb != NULL) {