src/cpu/sparc/vm/macroAssembler_sparc.cpp

@@ -3596,10 +3596,28 @@
     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;