1 //===-- ArchitecturePPC64.cpp -----------------------------------*- C++ -*-===//
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-exception
7 //===----------------------------------------------------------------------===//
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"
18 #include "llvm/BinaryFormat/ELF.h"
20 using namespace lldb_private;
23 ConstString ArchitecturePPC64::GetPluginNameStatic() {
24 return ConstString("ppc64");
27 void ArchitecturePPC64::Initialize() {
28 PluginManager::RegisterPlugin(GetPluginNameStatic(),
29 "PPC64-specific algorithms",
30 &ArchitecturePPC64::Create);
33 void ArchitecturePPC64::Terminate() {
34 PluginManager::UnregisterPlugin(&ArchitecturePPC64::Create);
37 std::unique_ptr<Architecture> ArchitecturePPC64::Create(const ArchSpec &arch) {
38 if (arch.GetTriple().isPPC64() &&
39 arch.GetTriple().getObjectFormat() == llvm::Triple::ObjectFormatType::ELF)
40 return std::unique_ptr<Architecture>(new ArchitecturePPC64());
44 ConstString ArchitecturePPC64::GetPluginName() { return GetPluginNameStatic(); }
45 uint32_t ArchitecturePPC64::GetPluginVersion() { return 1; }
47 static int32_t GetLocalEntryOffset(const Symbol &sym) {
48 unsigned char other = sym.GetFlags() >> 8 & 0xFF;
49 return llvm::ELF::decodePPC64LocalEntryOffset(other);
52 size_t ArchitecturePPC64::GetBytesToSkip(Symbol &func,
53 const Address &curr_addr) const {
54 if (curr_addr.GetFileAddress() ==
55 func.GetFileAddress() + GetLocalEntryOffset(func))
56 return func.GetPrologueByteSize();
60 void ArchitecturePPC64::AdjustBreakpointAddress(const Symbol &func,
61 Address &addr) const {
62 int32_t loffs = GetLocalEntryOffset(func);
66 addr.SetOffset(addr.GetOffset() + loffs);