Server : Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.4.20 System : Linux st2.domain.com 3.10.0-1127.10.1.el7.x86_64 #1 SMP Wed Jun 3 14:28:03 UTC 2020 x86_64 User : apache ( 48) PHP Version : 7.4.20 Disable Function : NONE Directory : /home/real/node-v13.0.1/deps/v8/src/debug/arm64/ |
// Copyright 2013 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_ARM64
#include "src/debug/debug.h"
#include "src/codegen/arm64/macro-assembler-arm64-inl.h"
#include "src/debug/liveedit.h"
#include "src/execution/frame-constants.h"
#include "src/execution/frames-inl.h"
#include "src/objects/objects-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 x1.
// - Look up current function on the frame.
// - Leave the frame.
// - Restart the frame by calling the function.
__ Mov(fp, x1);
__ Ldr(x1, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
__ Mov(sp, fp);
__ Pop(fp, lr); // Frame, Return address.
__ LoadTaggedPointerField(
x0, FieldMemOperand(x1, JSFunction::kSharedFunctionInfoOffset));
__ Ldrh(x0,
FieldMemOperand(x0, SharedFunctionInfo::kFormalParameterCountOffset));
__ mov(x2, x0);
ParameterCount dummy1(x2);
ParameterCount dummy2(x0);
__ InvokeFunction(x1, dummy1, dummy2, JUMP_FUNCTION);
}
const bool LiveEdit::kFrameDropperSupported = true;
} // namespace internal
} // namespace v8
#undef __
#endif // V8_TARGET_ARCH_ARM64