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// 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.
#if V8_TARGET_ARCH_IA32
#include "src/debug/debug.h"
#include "src/codegen.h"
#include "src/debug/liveedit.h"
#include "src/frames-inl.h"
namespace v8 {
namespace internal {
#define __ ACCESS_MASM(masm)
void DebugCodegen::GenerateHandleDebuggerStatement(MacroAssembler* masm) {
{
FrameScope scope(masm, StackFrame::INTERNAL);
__ CallRuntime(Runtime::kHandleDebuggerStatement, 0);
}
__ MaybeDropFrames();
// Return to caller.
__ ret(0);
}
void DebugCodegen::GenerateFrameDropperTrampoline(MacroAssembler* masm) {
// Frame is being dropped:
// - Drop to the target frame specified by ebx.
// - Look up current function on the frame.
// - Leave the frame.
// - Restart the frame by calling the function.
__ mov(ebp, ebx);
__ mov(edi, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset));
__ leave();
__ mov(ebx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
__ mov(ebx,
FieldOperand(ebx, SharedFunctionInfo::kFormalParameterCountOffset));
ParameterCount dummy(ebx);
__ InvokeFunction(edi, dummy, dummy, JUMP_FUNCTION);
}
const bool LiveEdit::kFrameDropperSupported = true;
#undef __
} // namespace internal
} // namespace v8
#endif // V8_TARGET_ARCH_IA32
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