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// Copyright 2014 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_PPC || V8_TARGET_ARCH_PPC64
#include "src/debug/debug.h"
#include "src/codegen/macro-assembler.h"
#include "src/debug/liveedit.h"
#include "src/execution/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();
}
void DebugCodegen::GenerateFrameDropperTrampoline(MacroAssembler* masm) {
// Frame is being dropped:
// - Drop to the target frame specified by r4.
// - Look up current function on the frame.
// - Leave the frame.
// - Restart the frame by calling the function.
__ mr(fp, r4);
__ LoadP(r4, MemOperand(fp, StandardFrameConstants::kFunctionOffset));
__ LeaveFrame(StackFrame::INTERNAL);
__ LoadTaggedPointerField(
r3, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset));
__ lhz(r3,
FieldMemOperand(r3, SharedFunctionInfo::kFormalParameterCountOffset));
__ mr(r5, r3);
__ InvokeFunction(r4, r5, r3, JUMP_FUNCTION);
}
const bool LiveEdit::kFrameDropperSupported = true;
#undef __
} // namespace internal
} // namespace v8
#endif // V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_PPC64
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