src/cpu/sparc/vm/macroAssembler_sparc.cpp

*** 3596,3605 ****
--- 3596,3623 ----
      set((-i*offset)+STACK_BIAS, Rscratch);
      st(G0, Rtsp, Rscratch);
    }
  }
  
+ void MacroAssembler::reserved_stack_check() {
+   // testing if reserved zone needs to be enabled
+   Label no_reserved_zone_enabling;
+ 
+   ld_ptr(G2_thread, JavaThread::reserved_stack_activation_offset(), G4_scratch);
+   cmp_and_brx_short(SP, G4_scratch, Assembler::lessUnsigned, Assembler::pt, no_reserved_zone_enabling);
+ 
+   call_VM_leaf(L0, CAST_FROM_FN_PTR(address, SharedRuntime::enable_stack_reserved_zone), G2_thread);
+ 
+   AddressLiteral stub(StubRoutines::throw_delayed_StackOverflowError_entry());
+   jump_to(stub, G4_scratch);
+   delayed()->restore();
+ 
+   should_not_reach_here();
+ 
+   bind(no_reserved_zone_enabling);
+ }
+ 
  ///////////////////////////////////////////////////////////////////////////////////
  #if INCLUDE_ALL_GCS
  
  static address satb_log_enqueue_with_frame = NULL;
  static u_char* satb_log_enqueue_with_frame_end = NULL;