Debugger: use debug break slot to break on call.

src/x64/full-codegen-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 2201 matching lines @@
 
       // result = receiver[f](arg);
       __ bind(&l_call);
       __ movp(load_receiver, Operand(rsp, kPointerSize));
       __ Move(LoadDescriptor::SlotRegister(),
               SmiFromSlot(expr->KeyedLoadFeedbackSlot()));
       Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate(), SLOPPY).code();
       CallIC(ic, TypeFeedbackId::None());
       __ movp(rdi, rax);
       __ movp(Operand(rsp, 2 * kPointerSize), rdi);
+
+      SetCallPosition(expr, 1);
       CallFunctionStub stub(isolate(), 1, CALL_AS_METHOD);
       __ CallStub(&stub);
 
       __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
       __ Drop(1);  // The function is still on the stack; drop it.
 
       // if (!result.done) goto l_try;
       __ bind(&l_loop);
       __ Move(load_receiver, rax);
       __ Push(load_receiver);                               // save result
@@ skipping 748 matching lines @@
 
 
 void FullCodeGenerator::EmitCall(Call* expr, CallICState::CallType call_type) {
   // Load the arguments.
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
   for (int i = 0; i < arg_count; i++) {
     VisitForStackValue(args->at(i));
   }
 
-  SetExpressionPosition(expr);
+  SetCallPosition(expr, arg_count);
   Handle<Code> ic = CodeFactory::CallIC(isolate(), arg_count, call_type).code();
   __ Move(rdx, SmiFromSlot(expr->CallFeedbackICSlot()));
   __ movp(rdi, Operand(rsp, (arg_count + 1) * kPointerSize));
   // Don't assign a type feedback id to the IC, since type feedback is provided
   // by the vector above.
   CallIC(ic);
 
   RecordJSReturnSite(expr);
 
   // Restore context register.
@@ skipping 91 matching lines @@
   Comment cmnt(masm_, "[ Call");
   Expression* callee = expr->expression();
   Call::CallType call_type = expr->GetCallType(isolate());
 
   if (call_type == Call::POSSIBLY_EVAL_CALL) {
     // In a call to eval, we first call RuntimeHidden_ResolvePossiblyDirectEval
     // to resolve the function we need to call.  Then we call the resolved
     // function using the given arguments.
     ZoneList<Expression*>* args = expr->arguments();
     int arg_count = args->length();
-      PushCalleeAndWithBaseObject(expr);
+    PushCalleeAndWithBaseObject(expr);
 
-      // Push the arguments.
-      for (int i = 0; i < arg_count; i++) {
-        VisitForStackValue(args->at(i));
-      }
+    // Push the arguments.
+    for (int i = 0; i < arg_count; i++) {
+      VisitForStackValue(args->at(i));
+    }
 
-      // Push a copy of the function (found below the arguments) and resolve
-      // eval.
-      __ Push(Operand(rsp, (arg_count + 1) * kPointerSize));
-      EmitResolvePossiblyDirectEval(arg_count);
+    // Push a copy of the function (found below the arguments) and resolve
+    // eval.
+    __ Push(Operand(rsp, (arg_count + 1) * kPointerSize));
+    EmitResolvePossiblyDirectEval(arg_count);
 
-      // Touch up the callee.
-      __ movp(Operand(rsp, (arg_count + 1) * kPointerSize), rax);
+    // Touch up the callee.
+    __ movp(Operand(rsp, (arg_count + 1) * kPointerSize), rax);
 
-      PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS);
-    // Record source position for debugger.
-      SetExpressionPosition(expr);
+    PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS);
+
+    SetCallPosition(expr, arg_count);
     CallFunctionStub stub(isolate(), arg_count, NO_CALL_FUNCTION_FLAGS);
     __ movp(rdi, Operand(rsp, (arg_count + 1) * kPointerSize));
     __ CallStub(&stub);
     RecordJSReturnSite(expr);
     // Restore context register.
     __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
     context()->DropAndPlug(1, rax);
   } else if (call_type == Call::GLOBAL_CALL) {
     EmitCallWithLoadIC(expr);
 
@@ skipping 50 matching lines @@
 
   // Push the arguments ("left-to-right") on the stack.
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
   for (int i = 0; i < arg_count; i++) {
     VisitForStackValue(args->at(i));
   }
 
   // Call the construct call builtin that handles allocation and
   // constructor invocation.
-  SetExpressionPosition(expr);
+  SetConstructCallPosition(expr);
 
   // Load function and argument count into rdi and rax.
   __ Set(rax, arg_count);
   __ movp(rdi, Operand(rsp, arg_count * kPointerSize));
 
   // Record call targets in unoptimized code, but not in the snapshot.
   if (FLAG_pretenuring_call_new) {
     EnsureSlotContainsAllocationSite(expr->AllocationSiteFeedbackSlot());
     DCHECK(expr->AllocationSiteFeedbackSlot().ToInt() ==
            expr->CallNewFeedbackSlot().ToInt() + 1);
@@ skipping 22 matching lines @@
 
   // Push the arguments ("left-to-right") on the stack.
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
   for (int i = 0; i < arg_count; i++) {
     VisitForStackValue(args->at(i));
   }
 
   // Call the construct call builtin that handles allocation and
   // constructor invocation.
-  SetExpressionPosition(expr);
+  SetConstructCallPosition(expr);
 
   // Load function and argument count into edi and eax.
   __ Set(rax, arg_count);
   __ movp(rdi, Operand(rsp, arg_count * kPointerSize));
 
   // Record call targets in unoptimized code.
   if (FLAG_pretenuring_call_new) {
     UNREACHABLE();
     /* TODO(dslomov): support pretenuring.
     EnsureSlotContainsAllocationSite(expr->AllocationSiteFeedbackSlot());
@@ skipping 1428 matching lines @@
   __ Move(LoadDescriptor::SlotRegister(),
           SmiFromSlot(expr->CallRuntimeFeedbackSlot()));
   CallLoadIC(NOT_CONTEXTUAL);
 }
 
 
 void FullCodeGenerator::EmitCallJSRuntimeFunction(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
 
-  SetExpressionPosition(expr);
+  SetCallPosition(expr, arg_count);
   CallFunctionStub stub(isolate(), arg_count, NO_CALL_FUNCTION_FLAGS);
   __ movp(rdi, Operand(rsp, (arg_count + 1) * kPointerSize));
   __ CallStub(&stub);
 }
 
 
 void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
 
@@ skipping 820 matching lines @@
             Assembler::target_address_at(call_target_address,
                                          unoptimized_code));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64