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70 lines
2.3 KiB
70 lines
2.3 KiB
4 months ago
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//===-- ArchitecturePPC64.cpp ---------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "Plugins/Architecture/PPC64/ArchitecturePPC64.h"
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#include "lldb/Core/PluginManager.h"
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#include "lldb/Symbol/Function.h"
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#include "lldb/Symbol/Symbol.h"
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#include "lldb/Target/RegisterContext.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/Thread.h"
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#include "lldb/Utility/ArchSpec.h"
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#include "llvm/BinaryFormat/ELF.h"
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using namespace lldb_private;
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using namespace lldb;
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LLDB_PLUGIN_DEFINE(ArchitecturePPC64)
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ConstString ArchitecturePPC64::GetPluginNameStatic() {
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return ConstString("ppc64");
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}
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void ArchitecturePPC64::Initialize() {
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PluginManager::RegisterPlugin(GetPluginNameStatic(),
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"PPC64-specific algorithms",
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&ArchitecturePPC64::Create);
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}
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void ArchitecturePPC64::Terminate() {
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PluginManager::UnregisterPlugin(&ArchitecturePPC64::Create);
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}
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std::unique_ptr<Architecture> ArchitecturePPC64::Create(const ArchSpec &arch) {
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if (arch.GetTriple().isPPC64() &&
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arch.GetTriple().getObjectFormat() == llvm::Triple::ObjectFormatType::ELF)
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return std::unique_ptr<Architecture>(new ArchitecturePPC64());
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return nullptr;
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}
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ConstString ArchitecturePPC64::GetPluginName() { return GetPluginNameStatic(); }
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uint32_t ArchitecturePPC64::GetPluginVersion() { return 1; }
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static int32_t GetLocalEntryOffset(const Symbol &sym) {
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unsigned char other = sym.GetFlags() >> 8 & 0xFF;
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return llvm::ELF::decodePPC64LocalEntryOffset(other);
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}
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size_t ArchitecturePPC64::GetBytesToSkip(Symbol &func,
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const Address &curr_addr) const {
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if (curr_addr.GetFileAddress() ==
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func.GetFileAddress() + GetLocalEntryOffset(func))
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return func.GetPrologueByteSize();
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return 0;
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}
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void ArchitecturePPC64::AdjustBreakpointAddress(const Symbol &func,
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Address &addr) const {
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int32_t loffs = GetLocalEntryOffset(func);
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if (!loffs)
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return;
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addr.SetOffset(addr.GetOffset() + loffs);
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}
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