forked from OSchip/llvm-project
123 lines
3.6 KiB
C++
123 lines
3.6 KiB
C++
//===-- ReproducerInstrumentation.cpp ---------------------------*- C++ -*-===//
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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 "lldb/Utility/ReproducerInstrumentation.h"
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#include "lldb/Utility/Reproducer.h"
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using namespace lldb_private;
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using namespace lldb_private::repro;
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void *IndexToObject::GetObjectForIndexImpl(unsigned idx) {
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return m_mapping.lookup(idx);
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}
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void IndexToObject::AddObjectForIndexImpl(unsigned idx, void *object) {
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assert(idx != 0 && "Cannot add object for sentinel");
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m_mapping[idx] = object;
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}
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template <> char *Deserializer::Deserialize<char *>() {
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return const_cast<char *>(Deserialize<const char *>());
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}
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template <> const char *Deserializer::Deserialize<const char *>() {
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auto pos = m_buffer.find('\0');
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if (pos == llvm::StringRef::npos)
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return nullptr;
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const char *str = m_buffer.data();
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m_buffer = m_buffer.drop_front(pos + 1);
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return str;
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}
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bool Registry::Replay(const FileSpec &file) {
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auto error_or_file = llvm::MemoryBuffer::getFile(file.GetPath());
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if (auto err = error_or_file.getError())
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return false;
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return Replay((*error_or_file)->getBuffer());
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}
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bool Registry::Replay(llvm::StringRef buffer) {
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#ifndef LLDB_REPRO_INSTR_TRACE
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Log *log = GetLogIfAllCategoriesSet(LIBLLDB_LOG_API);
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#endif
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Deserializer deserializer(buffer);
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while (deserializer.HasData(1)) {
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unsigned id = deserializer.Deserialize<unsigned>();
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#ifndef LLDB_REPRO_INSTR_TRACE
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LLDB_LOG(log, "Replaying {0}: {1}", id, GetSignature(id));
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#else
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llvm::errs() << "Replaying " << id << ": " << GetSignature(id) << "\n";
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#endif
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GetReplayer(id)->operator()(deserializer);
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}
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return true;
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}
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void Registry::DoRegister(uintptr_t RunID, std::unique_ptr<Replayer> replayer,
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SignatureStr signature) {
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const unsigned id = m_replayers.size() + 1;
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assert(m_replayers.find(RunID) == m_replayers.end());
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m_replayers[RunID] = std::make_pair(std::move(replayer), id);
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m_ids[id] =
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std::make_pair(m_replayers[RunID].first.get(), std::move(signature));
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}
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unsigned Registry::GetID(uintptr_t addr) {
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unsigned id = m_replayers[addr].second;
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assert(id != 0 && "Forgot to add function to registry?");
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return id;
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}
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std::string Registry::GetSignature(unsigned id) {
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assert(m_ids.count(id) != 0 && "ID not in registry");
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return m_ids[id].second.ToString();
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}
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Replayer *Registry::GetReplayer(unsigned id) {
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assert(m_ids.count(id) != 0 && "ID not in registry");
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return m_ids[id].first;
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}
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std::string Registry::SignatureStr::ToString() const {
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return (result + (result.empty() ? "" : " ") + scope + "::" + name + args)
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.str();
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}
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unsigned ObjectToIndex::GetIndexForObjectImpl(const void *object) {
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unsigned index = m_mapping.size() + 1;
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auto it = m_mapping.find(object);
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if (it == m_mapping.end())
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m_mapping[object] = index;
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return m_mapping[object];
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}
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Recorder::Recorder(llvm::StringRef pretty_func, std::string &&pretty_args)
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: m_serializer(nullptr), m_pretty_func(pretty_func),
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m_pretty_args(pretty_args), m_local_boundary(false),
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m_result_recorded(true) {
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if (!g_global_boundary) {
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g_global_boundary = true;
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m_local_boundary = true;
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LLDB_LOG(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API), "{0} ({1})",
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m_pretty_func, m_pretty_args);
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}
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}
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Recorder::~Recorder() {
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assert(m_result_recorded && "Did you forget LLDB_RECORD_RESULT?");
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UpdateBoundary();
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}
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bool lldb_private::repro::Recorder::g_global_boundary;
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