| //===-- ArchitecturePPC64.cpp ---------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "Plugins/Architecture/PPC64/ArchitecturePPC64.h" |
| #include "lldb/Core/PluginManager.h" |
| #include "lldb/Symbol/Function.h" |
| #include "lldb/Symbol/Symbol.h" |
| #include "lldb/Target/RegisterContext.h" |
| #include "lldb/Target/Target.h" |
| #include "lldb/Target/Thread.h" |
| #include "lldb/Utility/ArchSpec.h" |
| |
| #include "llvm/BinaryFormat/ELF.h" |
| |
| using namespace lldb_private; |
| using namespace lldb; |
| |
| LLDB_PLUGIN_DEFINE(ArchitecturePPC64) |
| |
| void ArchitecturePPC64::Initialize() { |
| PluginManager::RegisterPlugin(GetPluginNameStatic(), |
| "PPC64-specific algorithms", |
| &ArchitecturePPC64::Create); |
| } |
| |
| void ArchitecturePPC64::Terminate() { |
| PluginManager::UnregisterPlugin(&ArchitecturePPC64::Create); |
| } |
| |
| std::unique_ptr<Architecture> ArchitecturePPC64::Create(const ArchSpec &arch) { |
| if (arch.GetTriple().isPPC64() && |
| arch.GetTriple().getObjectFormat() == llvm::Triple::ObjectFormatType::ELF) |
| return std::unique_ptr<Architecture>(new ArchitecturePPC64()); |
| return nullptr; |
| } |
| |
| static int32_t GetLocalEntryOffset(const Symbol &sym) { |
| unsigned char other = sym.GetFlags() >> 8 & 0xFF; |
| return llvm::ELF::decodePPC64LocalEntryOffset(other); |
| } |
| |
| size_t ArchitecturePPC64::GetBytesToSkip(Symbol &func, |
| const Address &curr_addr) const { |
| if (curr_addr.GetFileAddress() == |
| func.GetFileAddress() + GetLocalEntryOffset(func)) |
| return func.GetPrologueByteSize(); |
| return 0; |
| } |
| |
| void ArchitecturePPC64::AdjustBreakpointAddress(const Symbol &func, |
| Address &addr) const { |
| int32_t loffs = GetLocalEntryOffset(func); |
| if (!loffs) |
| return; |
| |
| addr.SetOffset(addr.GetOffset() + loffs); |
| } |