Debugger: use debug break slot to break on call.

src/mips/full-codegen-mips.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_MIPS
 
 // Note on Mips implementation:
 //
@@ skipping 2248 matching lines @@
       __ bind(&l_call);
       __ lw(load_receiver, MemOperand(sp, kPointerSize));
       __ lw(load_name, MemOperand(sp, 2 * kPointerSize));
       __ li(LoadDescriptor::SlotRegister(),
             Operand(SmiFromSlot(expr->KeyedLoadFeedbackSlot())));
       Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate(), SLOPPY).code();
       CallIC(ic, TypeFeedbackId::None());
       __ mov(a0, v0);
       __ mov(a1, a0);
       __ sw(a1, MemOperand(sp, 2 * kPointerSize));
+      SetCallPosition(expr, 1);
       CallFunctionStub stub(isolate(), 1, CALL_AS_METHOD);
       __ CallStub(&stub);
 
       __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
       __ Drop(1);  // The function is still on the stack; drop it.
 
       // if (!result.done) goto l_try;
       __ Move(load_receiver, v0);
 
       __ push(load_receiver);                               // save result
@@ skipping 803 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));
   }
 
   // Record source position of the IC call.
-  SetExpressionPosition(expr);
+  SetCallPosition(expr, arg_count);
   Handle<Code> ic = CodeFactory::CallIC(isolate(), arg_count, call_type).code();
   __ li(a3, Operand(SmiFromSlot(expr->CallFeedbackICSlot())));
   __ lw(a1, MemOperand(sp, (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.
   __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
@@ skipping 95 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.
-      __ lw(a1, MemOperand(sp, (arg_count + 1) * kPointerSize));
-      __ push(a1);
-      EmitResolvePossiblyDirectEval(arg_count);
+    // Push a copy of the function (found below the arguments) and
+    // resolve eval.
+    __ lw(a1, MemOperand(sp, (arg_count + 1) * kPointerSize));
+    __ push(a1);
+    EmitResolvePossiblyDirectEval(arg_count);
 
-      // Touch up the stack with the resolved function.
-      __ sw(v0, MemOperand(sp, (arg_count + 1) * kPointerSize));
+    // Touch up the stack with the resolved function.
+    __ sw(v0, MemOperand(sp, (arg_count + 1) * kPointerSize));
 
-      PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS);
+    PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS);
     // Record source position for debugger.
-      SetExpressionPosition(expr);
+    SetCallPosition(expr, arg_count);
     CallFunctionStub stub(isolate(), arg_count, NO_CALL_FUNCTION_FLAGS);
     __ lw(a1, MemOperand(sp, (arg_count + 1) * kPointerSize));
     __ CallStub(&stub);
     RecordJSReturnSite(expr);
     // Restore context register.
     __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
     context()->DropAndPlug(1, v0);
   } else if (call_type == Call::GLOBAL_CALL) {
     EmitCallWithLoadIC(expr);
   } else if (call_type == Call::LOOKUP_SLOT_CALL) {
@@ 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 a1 and a0.
   __ li(a0, Operand(arg_count));
   __ lw(a1, MemOperand(sp, arg_count * kPointerSize));
 
   // Record call targets in unoptimized code.
   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 a1 and a0.
   __ li(a0, Operand(arg_count));
   __ lw(a1, MemOperand(sp, arg_count * kPointerSize));
 
   // Record call targets in unoptimized code.
   if (FLAG_pretenuring_call_new) {
     UNREACHABLE();
     /* TODO(dslomov): support pretenuring.
     EnsureSlotContainsAllocationSite(expr->AllocationSiteFeedbackSlot());
@@ skipping 1393 matching lines @@
   __ li(LoadDescriptor::SlotRegister(),
         Operand(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);
   __ lw(a1, MemOperand(sp, (arg_count + 1) * kPointerSize));
   __ CallStub(&stub);
 }
 
 
 void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
 
@@ skipping 785 matching lines @@
          reinterpret_cast<uint32_t>(
              isolate->builtins()->OsrAfterStackCheck()->entry()));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS