Notify CPU profiler when calling native getters

src/ia32/macro-assembler-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1955 matching lines @@
     lea(esi, Operand(esp, (argc + 1) * kPointerSize));
     mov(Operand(esp, 0 * kPointerSize), esi);
     if (emit_debug_code()) {
       mov(Operand(esi, 0), Immediate(0));
     }
   }
 }
 
 
 void MacroAssembler::CallApiFunctionAndReturn(Address function_address,
+                                              Address thunk_address,
+                                              Operand thunk_last_arg,
                                               int stack_space,
                                               bool returns_handle,
                                               int return_value_offset) {
   ExternalReference next_address =
       ExternalReference::handle_scope_next_address(isolate());
   ExternalReference limit_address =
       ExternalReference::handle_scope_limit_address(isolate());
   ExternalReference level_address =
       ExternalReference::handle_scope_level_address(isolate());
 
   // Allocate HandleScope in callee-save registers.
   mov(ebx, Operand::StaticVariable(next_address));
   mov(edi, Operand::StaticVariable(limit_address));
   add(Operand::StaticVariable(level_address), Immediate(1));
 
   if (FLAG_log_timer_events) {
     FrameScope frame(this, StackFrame::MANUAL);
     PushSafepointRegisters();
     PrepareCallCFunction(1, eax);
     mov(Operand(esp, 0),
         Immediate(ExternalReference::isolate_address(isolate())));
     CallCFunction(ExternalReference::log_enter_external_function(isolate()), 1);
     PopSafepointRegisters();
   }
 
+
+  Label profiler_disabled;
+  Label end_profiler_check;
+  bool* is_profiling_flag =
+      isolate()->cpu_profiler()->is_profiling_address();
+  STATIC_ASSERT(sizeof(*is_profiling_flag) == 1);
+  mov(eax, Immediate(reinterpret_cast<Address>(is_profiling_flag)));
+  cmpb(Operand(eax, 0), 0);
+  j(zero, &profiler_disabled);
+
+  // Additional parameter is the address of the actual getter function.
+  mov(thunk_last_arg, Immediate(function_address));
+  // Call the api function.
+  call(thunk_address, RelocInfo::RUNTIME_ENTRY);
+  jmp(&end_profiler_check);
+
+  bind(&profiler_disabled);
   // Call the api function.
   call(function_address, RelocInfo::RUNTIME_ENTRY);
+  bind(&end_profiler_check);
 
   if (FLAG_log_timer_events) {
     FrameScope frame(this, StackFrame::MANUAL);
     PushSafepointRegisters();
     PrepareCallCFunction(1, eax);
     mov(Operand(esp, 0),
         Immediate(ExternalReference::isolate_address(isolate())));
     CallCFunction(ExternalReference::log_leave_external_function(isolate()), 1);
     PopSafepointRegisters();
   }
@@ skipping 1135 matching lines @@
   j(greater, &no_info_available);
   cmp(MemOperand(scratch_reg, -AllocationSiteInfo::kSize),
       Immediate(Handle<Map>(isolate()->heap()->allocation_site_info_map())));
   bind(&no_info_available);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32