63 lines · cpp
1//===-- ArchitecturePPC64.cpp ---------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "Plugins/Architecture/PPC64/ArchitecturePPC64.h"10#include "lldb/Core/PluginManager.h"11#include "lldb/Symbol/Function.h"12#include "lldb/Symbol/Symbol.h"13#include "lldb/Target/RegisterContext.h"14#include "lldb/Target/Target.h"15#include "lldb/Target/Thread.h"16#include "lldb/Utility/ArchSpec.h"17 18#include "llvm/BinaryFormat/ELF.h"19 20using namespace lldb_private;21using namespace lldb;22 23LLDB_PLUGIN_DEFINE(ArchitecturePPC64)24 25void ArchitecturePPC64::Initialize() {26 PluginManager::RegisterPlugin(GetPluginNameStatic(),27 "PPC64-specific algorithms",28 &ArchitecturePPC64::Create);29}30 31void ArchitecturePPC64::Terminate() {32 PluginManager::UnregisterPlugin(&ArchitecturePPC64::Create);33}34 35std::unique_ptr<Architecture> ArchitecturePPC64::Create(const ArchSpec &arch) {36 if (arch.GetTriple().isPPC64() &&37 arch.GetTriple().getObjectFormat() == llvm::Triple::ObjectFormatType::ELF)38 return std::unique_ptr<Architecture>(new ArchitecturePPC64());39 return nullptr;40}41 42static int32_t GetLocalEntryOffset(const Symbol &sym) {43 unsigned char other = sym.GetFlags() >> 8 & 0xFF;44 return llvm::ELF::decodePPC64LocalEntryOffset(other);45}46 47size_t ArchitecturePPC64::GetBytesToSkip(Symbol &func,48 const Address &curr_addr) const {49 if (curr_addr.GetFileAddress() ==50 func.GetFileAddress() + GetLocalEntryOffset(func))51 return func.GetPrologueByteSize();52 return 0;53}54 55void ArchitecturePPC64::AdjustBreakpointAddress(const Symbol &func,56 Address &addr) const {57 int32_t loffs = GetLocalEntryOffset(func);58 if (!loffs)59 return;60 61 addr.SetOffset(addr.GetOffset() + loffs);62}63