forked from OSchip/llvm-project
1027 lines
35 KiB
C++
1027 lines
35 KiB
C++
//===-- ModuleList.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 "lldb/Core/ModuleList.h"
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#include "lldb/Core/FileSpecList.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/ModuleSpec.h"
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#include "lldb/Host/FileSystem.h"
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#include "lldb/Interpreter/OptionValueFileSpec.h"
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#include "lldb/Interpreter/OptionValueFileSpecList.h"
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#include "lldb/Interpreter/OptionValueProperties.h"
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#include "lldb/Interpreter/Property.h"
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#include "lldb/Symbol/LocateSymbolFile.h"
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Symbol/SymbolContext.h"
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#include "lldb/Symbol/TypeList.h"
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#include "lldb/Symbol/VariableList.h"
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#include "lldb/Utility/ArchSpec.h"
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#include "lldb/Utility/ConstString.h"
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#include "lldb/Utility/Log.h"
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#include "lldb/Utility/Logging.h"
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#include "lldb/Utility/UUID.h"
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#include "lldb/lldb-defines.h"
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#if defined(_WIN32)
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#include "lldb/Host/windows/PosixApi.h"
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#endif
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#include "clang/Driver/Driver.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Threading.h"
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#include "llvm/Support/raw_ostream.h"
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#include <chrono>
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#include <memory>
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#include <mutex>
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#include <string>
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#include <utility>
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namespace lldb_private {
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class Function;
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}
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namespace lldb_private {
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class RegularExpression;
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}
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namespace lldb_private {
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class Stream;
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}
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namespace lldb_private {
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class SymbolFile;
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}
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namespace lldb_private {
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class Target;
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}
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using namespace lldb;
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using namespace lldb_private;
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namespace {
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#define LLDB_PROPERTIES_modulelist
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#include "CoreProperties.inc"
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enum {
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#define LLDB_PROPERTIES_modulelist
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#include "CorePropertiesEnum.inc"
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};
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} // namespace
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ModuleListProperties::ModuleListProperties() {
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m_collection_sp =
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std::make_shared<OptionValueProperties>(ConstString("symbols"));
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m_collection_sp->Initialize(g_modulelist_properties);
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m_collection_sp->SetValueChangedCallback(ePropertySymLinkPaths,
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[this] { UpdateSymlinkMappings(); });
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llvm::SmallString<128> path;
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clang::driver::Driver::getDefaultModuleCachePath(path);
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SetClangModulesCachePath(path);
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}
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bool ModuleListProperties::GetEnableExternalLookup() const {
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const uint32_t idx = ePropertyEnableExternalLookup;
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return m_collection_sp->GetPropertyAtIndexAsBoolean(
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nullptr, idx, g_modulelist_properties[idx].default_uint_value != 0);
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}
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bool ModuleListProperties::SetEnableExternalLookup(bool new_value) {
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return m_collection_sp->SetPropertyAtIndexAsBoolean(
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nullptr, ePropertyEnableExternalLookup, new_value);
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}
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FileSpec ModuleListProperties::GetClangModulesCachePath() const {
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return m_collection_sp
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->GetPropertyAtIndexAsOptionValueFileSpec(nullptr, false,
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ePropertyClangModulesCachePath)
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->GetCurrentValue();
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}
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bool ModuleListProperties::SetClangModulesCachePath(llvm::StringRef path) {
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return m_collection_sp->SetPropertyAtIndexAsString(
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nullptr, ePropertyClangModulesCachePath, path);
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}
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void ModuleListProperties::UpdateSymlinkMappings() {
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FileSpecList list = m_collection_sp
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->GetPropertyAtIndexAsOptionValueFileSpecList(
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nullptr, false, ePropertySymLinkPaths)
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->GetCurrentValue();
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llvm::sys::ScopedWriter lock(m_symlink_paths_mutex);
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const bool notify = false;
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m_symlink_paths.Clear(notify);
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for (FileSpec symlink : list) {
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FileSpec resolved;
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Status status = FileSystem::Instance().Readlink(symlink, resolved);
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if (status.Success())
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m_symlink_paths.Append(ConstString(symlink.GetPath()),
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ConstString(resolved.GetPath()), notify);
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}
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}
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PathMappingList ModuleListProperties::GetSymlinkMappings() const {
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llvm::sys::ScopedReader lock(m_symlink_paths_mutex);
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return m_symlink_paths;
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}
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ModuleList::ModuleList()
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: m_modules(), m_modules_mutex(), m_notifier(nullptr) {}
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ModuleList::ModuleList(const ModuleList &rhs)
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: m_modules(), m_modules_mutex(), m_notifier(nullptr) {
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std::lock_guard<std::recursive_mutex> lhs_guard(m_modules_mutex);
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std::lock_guard<std::recursive_mutex> rhs_guard(rhs.m_modules_mutex);
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m_modules = rhs.m_modules;
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}
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ModuleList::ModuleList(ModuleList::Notifier *notifier)
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: m_modules(), m_modules_mutex(), m_notifier(notifier) {}
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const ModuleList &ModuleList::operator=(const ModuleList &rhs) {
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if (this != &rhs) {
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std::lock(m_modules_mutex, rhs.m_modules_mutex);
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std::lock_guard<std::recursive_mutex> lhs_guard(m_modules_mutex,
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std::adopt_lock);
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std::lock_guard<std::recursive_mutex> rhs_guard(rhs.m_modules_mutex,
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std::adopt_lock);
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m_modules = rhs.m_modules;
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}
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return *this;
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}
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ModuleList::~ModuleList() = default;
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void ModuleList::AppendImpl(const ModuleSP &module_sp, bool use_notifier) {
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if (module_sp) {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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m_modules.push_back(module_sp);
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if (use_notifier && m_notifier)
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m_notifier->NotifyModuleAdded(*this, module_sp);
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}
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}
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void ModuleList::Append(const ModuleSP &module_sp, bool notify) {
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AppendImpl(module_sp, notify);
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}
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void ModuleList::ReplaceEquivalent(const ModuleSP &module_sp) {
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if (module_sp) {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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// First remove any equivalent modules. Equivalent modules are modules
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// whose path, platform path and architecture match.
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ModuleSpec equivalent_module_spec(module_sp->GetFileSpec(),
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module_sp->GetArchitecture());
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equivalent_module_spec.GetPlatformFileSpec() =
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module_sp->GetPlatformFileSpec();
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size_t idx = 0;
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while (idx < m_modules.size()) {
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ModuleSP module_sp(m_modules[idx]);
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if (module_sp->MatchesModuleSpec(equivalent_module_spec))
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RemoveImpl(m_modules.begin() + idx);
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else
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++idx;
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}
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// Now add the new module to the list
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Append(module_sp);
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}
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}
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bool ModuleList::AppendIfNeeded(const ModuleSP &module_sp, bool notify) {
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if (module_sp) {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos) {
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if (pos->get() == module_sp.get())
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return false; // Already in the list
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}
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// Only push module_sp on the list if it wasn't already in there.
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Append(module_sp, notify);
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return true;
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}
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return false;
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}
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void ModuleList::Append(const ModuleList &module_list) {
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for (auto pos : module_list.m_modules)
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Append(pos);
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}
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bool ModuleList::AppendIfNeeded(const ModuleList &module_list) {
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bool any_in = false;
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for (auto pos : module_list.m_modules) {
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if (AppendIfNeeded(pos))
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any_in = true;
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}
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return any_in;
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}
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bool ModuleList::RemoveImpl(const ModuleSP &module_sp, bool use_notifier) {
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if (module_sp) {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos) {
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if (pos->get() == module_sp.get()) {
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m_modules.erase(pos);
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if (use_notifier && m_notifier)
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m_notifier->NotifyModuleRemoved(*this, module_sp);
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return true;
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}
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}
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}
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return false;
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}
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ModuleList::collection::iterator
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ModuleList::RemoveImpl(ModuleList::collection::iterator pos,
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bool use_notifier) {
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ModuleSP module_sp(*pos);
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collection::iterator retval = m_modules.erase(pos);
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if (use_notifier && m_notifier)
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m_notifier->NotifyModuleRemoved(*this, module_sp);
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return retval;
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}
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bool ModuleList::Remove(const ModuleSP &module_sp, bool notify) {
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return RemoveImpl(module_sp, notify);
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}
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bool ModuleList::ReplaceModule(const lldb::ModuleSP &old_module_sp,
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const lldb::ModuleSP &new_module_sp) {
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if (!RemoveImpl(old_module_sp, false))
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return false;
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AppendImpl(new_module_sp, false);
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if (m_notifier)
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m_notifier->NotifyModuleUpdated(*this, old_module_sp, new_module_sp);
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return true;
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}
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bool ModuleList::RemoveIfOrphaned(const Module *module_ptr) {
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if (module_ptr) {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos) {
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if (pos->get() == module_ptr) {
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if (pos->unique()) {
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pos = RemoveImpl(pos);
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return true;
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} else
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return false;
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}
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}
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}
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return false;
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}
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size_t ModuleList::RemoveOrphans(bool mandatory) {
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std::unique_lock<std::recursive_mutex> lock(m_modules_mutex, std::defer_lock);
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if (mandatory) {
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lock.lock();
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} else {
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// Not mandatory, remove orphans if we can get the mutex
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if (!lock.try_lock())
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return 0;
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}
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collection::iterator pos = m_modules.begin();
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size_t remove_count = 0;
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while (pos != m_modules.end()) {
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if (pos->unique()) {
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pos = RemoveImpl(pos);
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++remove_count;
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} else {
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++pos;
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}
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}
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return remove_count;
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}
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size_t ModuleList::Remove(ModuleList &module_list) {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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size_t num_removed = 0;
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collection::iterator pos, end = module_list.m_modules.end();
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for (pos = module_list.m_modules.begin(); pos != end; ++pos) {
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if (Remove(*pos, false /* notify */))
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++num_removed;
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}
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if (m_notifier)
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m_notifier->NotifyModulesRemoved(module_list);
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return num_removed;
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}
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void ModuleList::Clear() { ClearImpl(); }
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void ModuleList::Destroy() { ClearImpl(); }
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void ModuleList::ClearImpl(bool use_notifier) {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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if (use_notifier && m_notifier)
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m_notifier->NotifyWillClearList(*this);
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m_modules.clear();
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}
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Module *ModuleList::GetModulePointerAtIndex(size_t idx) const {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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return GetModulePointerAtIndexUnlocked(idx);
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}
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Module *ModuleList::GetModulePointerAtIndexUnlocked(size_t idx) const {
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if (idx < m_modules.size())
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return m_modules[idx].get();
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return nullptr;
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}
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ModuleSP ModuleList::GetModuleAtIndex(size_t idx) const {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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return GetModuleAtIndexUnlocked(idx);
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}
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ModuleSP ModuleList::GetModuleAtIndexUnlocked(size_t idx) const {
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ModuleSP module_sp;
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if (idx < m_modules.size())
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module_sp = m_modules[idx];
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return module_sp;
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}
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void ModuleList::FindFunctions(ConstString name,
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FunctionNameType name_type_mask,
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bool include_symbols, bool include_inlines,
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SymbolContextList &sc_list) const {
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const size_t old_size = sc_list.GetSize();
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if (name_type_mask & eFunctionNameTypeAuto) {
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Module::LookupInfo lookup_info(name, name_type_mask, eLanguageTypeUnknown);
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::const_iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos) {
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(*pos)->FindFunctions(lookup_info.GetLookupName(), CompilerDeclContext(),
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lookup_info.GetNameTypeMask(), include_symbols,
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include_inlines, sc_list);
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}
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const size_t new_size = sc_list.GetSize();
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if (old_size < new_size)
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lookup_info.Prune(sc_list, old_size);
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} else {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::const_iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos) {
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(*pos)->FindFunctions(name, CompilerDeclContext(), name_type_mask,
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include_symbols, include_inlines, sc_list);
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}
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}
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}
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void ModuleList::FindFunctionSymbols(ConstString name,
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lldb::FunctionNameType name_type_mask,
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SymbolContextList &sc_list) {
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const size_t old_size = sc_list.GetSize();
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if (name_type_mask & eFunctionNameTypeAuto) {
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Module::LookupInfo lookup_info(name, name_type_mask, eLanguageTypeUnknown);
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::const_iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos) {
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(*pos)->FindFunctionSymbols(lookup_info.GetLookupName(),
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lookup_info.GetNameTypeMask(), sc_list);
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}
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const size_t new_size = sc_list.GetSize();
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if (old_size < new_size)
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lookup_info.Prune(sc_list, old_size);
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} else {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::const_iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos) {
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(*pos)->FindFunctionSymbols(name, name_type_mask, sc_list);
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}
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}
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}
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void ModuleList::FindFunctions(const RegularExpression &name,
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bool include_symbols, bool include_inlines,
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SymbolContextList &sc_list) {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::const_iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos) {
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(*pos)->FindFunctions(name, include_symbols, include_inlines, sc_list);
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}
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}
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void ModuleList::FindCompileUnits(const FileSpec &path,
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SymbolContextList &sc_list) const {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::const_iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos) {
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(*pos)->FindCompileUnits(path, sc_list);
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}
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}
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void ModuleList::FindGlobalVariables(ConstString name, size_t max_matches,
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VariableList &variable_list) const {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::const_iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos) {
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(*pos)->FindGlobalVariables(name, CompilerDeclContext(), max_matches,
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variable_list);
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}
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}
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void ModuleList::FindGlobalVariables(const RegularExpression ®ex,
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size_t max_matches,
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VariableList &variable_list) const {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::const_iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos) {
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(*pos)->FindGlobalVariables(regex, max_matches, variable_list);
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}
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}
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void ModuleList::FindSymbolsWithNameAndType(ConstString name,
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SymbolType symbol_type,
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SymbolContextList &sc_list) const {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::const_iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos)
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(*pos)->FindSymbolsWithNameAndType(name, symbol_type, sc_list);
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}
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void ModuleList::FindSymbolsMatchingRegExAndType(
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const RegularExpression ®ex, lldb::SymbolType symbol_type,
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SymbolContextList &sc_list) const {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::const_iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos)
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(*pos)->FindSymbolsMatchingRegExAndType(regex, symbol_type, sc_list);
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}
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void ModuleList::FindModules(const ModuleSpec &module_spec,
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ModuleList &matching_module_list) const {
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
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collection::const_iterator pos, end = m_modules.end();
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for (pos = m_modules.begin(); pos != end; ++pos) {
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ModuleSP module_sp(*pos);
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if (module_sp->MatchesModuleSpec(module_spec))
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matching_module_list.Append(module_sp);
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}
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}
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ModuleSP ModuleList::FindModule(const Module *module_ptr) const {
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ModuleSP module_sp;
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// Scope for "locker"
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{
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std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
collection::const_iterator pos, end = m_modules.end();
|
|
|
|
for (pos = m_modules.begin(); pos != end; ++pos) {
|
|
if ((*pos).get() == module_ptr) {
|
|
module_sp = (*pos);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return module_sp;
|
|
}
|
|
|
|
ModuleSP ModuleList::FindModule(const UUID &uuid) const {
|
|
ModuleSP module_sp;
|
|
|
|
if (uuid.IsValid()) {
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
collection::const_iterator pos, end = m_modules.end();
|
|
|
|
for (pos = m_modules.begin(); pos != end; ++pos) {
|
|
if ((*pos)->GetUUID() == uuid) {
|
|
module_sp = (*pos);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return module_sp;
|
|
}
|
|
|
|
void ModuleList::FindTypes(Module *search_first, ConstString name,
|
|
bool name_is_fully_qualified, size_t max_matches,
|
|
llvm::DenseSet<SymbolFile *> &searched_symbol_files,
|
|
TypeList &types) const {
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
|
|
collection::const_iterator pos, end = m_modules.end();
|
|
if (search_first) {
|
|
for (pos = m_modules.begin(); pos != end; ++pos) {
|
|
if (search_first == pos->get()) {
|
|
search_first->FindTypes(name, name_is_fully_qualified, max_matches,
|
|
searched_symbol_files, types);
|
|
|
|
if (types.GetSize() >= max_matches)
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (pos = m_modules.begin(); pos != end; ++pos) {
|
|
// Search the module if the module is not equal to the one in the symbol
|
|
// context "sc". If "sc" contains a empty module shared pointer, then the
|
|
// comparison will always be true (valid_module_ptr != nullptr).
|
|
if (search_first != pos->get())
|
|
(*pos)->FindTypes(name, name_is_fully_qualified, max_matches,
|
|
searched_symbol_files, types);
|
|
|
|
if (types.GetSize() >= max_matches)
|
|
return;
|
|
}
|
|
}
|
|
|
|
bool ModuleList::FindSourceFile(const FileSpec &orig_spec,
|
|
FileSpec &new_spec) const {
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
collection::const_iterator pos, end = m_modules.end();
|
|
for (pos = m_modules.begin(); pos != end; ++pos) {
|
|
if ((*pos)->FindSourceFile(orig_spec, new_spec))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void ModuleList::FindAddressesForLine(const lldb::TargetSP target_sp,
|
|
const FileSpec &file, uint32_t line,
|
|
Function *function,
|
|
std::vector<Address> &output_local,
|
|
std::vector<Address> &output_extern) {
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
collection::const_iterator pos, end = m_modules.end();
|
|
for (pos = m_modules.begin(); pos != end; ++pos) {
|
|
(*pos)->FindAddressesForLine(target_sp, file, line, function, output_local,
|
|
output_extern);
|
|
}
|
|
}
|
|
|
|
ModuleSP ModuleList::FindFirstModule(const ModuleSpec &module_spec) const {
|
|
ModuleSP module_sp;
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
collection::const_iterator pos, end = m_modules.end();
|
|
for (pos = m_modules.begin(); pos != end; ++pos) {
|
|
ModuleSP module_sp(*pos);
|
|
if (module_sp->MatchesModuleSpec(module_spec))
|
|
return module_sp;
|
|
}
|
|
return module_sp;
|
|
}
|
|
|
|
size_t ModuleList::GetSize() const {
|
|
size_t size = 0;
|
|
{
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
size = m_modules.size();
|
|
}
|
|
return size;
|
|
}
|
|
|
|
void ModuleList::Dump(Stream *s) const {
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
collection::const_iterator pos, end = m_modules.end();
|
|
for (pos = m_modules.begin(); pos != end; ++pos) {
|
|
(*pos)->Dump(s);
|
|
}
|
|
}
|
|
|
|
void ModuleList::LogUUIDAndPaths(Log *log, const char *prefix_cstr) {
|
|
if (log != nullptr) {
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
collection::const_iterator pos, begin = m_modules.begin(),
|
|
end = m_modules.end();
|
|
for (pos = begin; pos != end; ++pos) {
|
|
Module *module = pos->get();
|
|
const FileSpec &module_file_spec = module->GetFileSpec();
|
|
LLDB_LOGF(log, "%s[%u] %s (%s) \"%s\"", prefix_cstr ? prefix_cstr : "",
|
|
(uint32_t)std::distance(begin, pos),
|
|
module->GetUUID().GetAsString().c_str(),
|
|
module->GetArchitecture().GetArchitectureName(),
|
|
module_file_spec.GetPath().c_str());
|
|
}
|
|
}
|
|
}
|
|
|
|
bool ModuleList::ResolveFileAddress(lldb::addr_t vm_addr,
|
|
Address &so_addr) const {
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
collection::const_iterator pos, end = m_modules.end();
|
|
for (pos = m_modules.begin(); pos != end; ++pos) {
|
|
if ((*pos)->ResolveFileAddress(vm_addr, so_addr))
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
uint32_t
|
|
ModuleList::ResolveSymbolContextForAddress(const Address &so_addr,
|
|
SymbolContextItem resolve_scope,
|
|
SymbolContext &sc) const {
|
|
// The address is already section offset so it has a module
|
|
uint32_t resolved_flags = 0;
|
|
ModuleSP module_sp(so_addr.GetModule());
|
|
if (module_sp) {
|
|
resolved_flags =
|
|
module_sp->ResolveSymbolContextForAddress(so_addr, resolve_scope, sc);
|
|
} else {
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
collection::const_iterator pos, end = m_modules.end();
|
|
for (pos = m_modules.begin(); pos != end; ++pos) {
|
|
resolved_flags =
|
|
(*pos)->ResolveSymbolContextForAddress(so_addr, resolve_scope, sc);
|
|
if (resolved_flags != 0)
|
|
break;
|
|
}
|
|
}
|
|
|
|
return resolved_flags;
|
|
}
|
|
|
|
uint32_t ModuleList::ResolveSymbolContextForFilePath(
|
|
const char *file_path, uint32_t line, bool check_inlines,
|
|
SymbolContextItem resolve_scope, SymbolContextList &sc_list) const {
|
|
FileSpec file_spec(file_path);
|
|
return ResolveSymbolContextsForFileSpec(file_spec, line, check_inlines,
|
|
resolve_scope, sc_list);
|
|
}
|
|
|
|
uint32_t ModuleList::ResolveSymbolContextsForFileSpec(
|
|
const FileSpec &file_spec, uint32_t line, bool check_inlines,
|
|
SymbolContextItem resolve_scope, SymbolContextList &sc_list) const {
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
collection::const_iterator pos, end = m_modules.end();
|
|
for (pos = m_modules.begin(); pos != end; ++pos) {
|
|
(*pos)->ResolveSymbolContextsForFileSpec(file_spec, line, check_inlines,
|
|
resolve_scope, sc_list);
|
|
}
|
|
|
|
return sc_list.GetSize();
|
|
}
|
|
|
|
size_t ModuleList::GetIndexForModule(const Module *module) const {
|
|
if (module) {
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
collection::const_iterator pos;
|
|
collection::const_iterator begin = m_modules.begin();
|
|
collection::const_iterator end = m_modules.end();
|
|
for (pos = begin; pos != end; ++pos) {
|
|
if ((*pos).get() == module)
|
|
return std::distance(begin, pos);
|
|
}
|
|
}
|
|
return LLDB_INVALID_INDEX32;
|
|
}
|
|
|
|
namespace {
|
|
struct SharedModuleListInfo {
|
|
ModuleList module_list;
|
|
ModuleListProperties module_list_properties;
|
|
};
|
|
}
|
|
static SharedModuleListInfo &GetSharedModuleListInfo()
|
|
{
|
|
static SharedModuleListInfo *g_shared_module_list_info = nullptr;
|
|
static llvm::once_flag g_once_flag;
|
|
llvm::call_once(g_once_flag, []() {
|
|
// NOTE: Intentionally leak the module list so a program doesn't have to
|
|
// cleanup all modules and object files as it exits. This just wastes time
|
|
// doing a bunch of cleanup that isn't required.
|
|
if (g_shared_module_list_info == nullptr)
|
|
g_shared_module_list_info = new SharedModuleListInfo();
|
|
});
|
|
return *g_shared_module_list_info;
|
|
}
|
|
|
|
static ModuleList &GetSharedModuleList() {
|
|
return GetSharedModuleListInfo().module_list;
|
|
}
|
|
|
|
ModuleListProperties &ModuleList::GetGlobalModuleListProperties() {
|
|
return GetSharedModuleListInfo().module_list_properties;
|
|
}
|
|
|
|
bool ModuleList::ModuleIsInCache(const Module *module_ptr) {
|
|
if (module_ptr) {
|
|
ModuleList &shared_module_list = GetSharedModuleList();
|
|
return shared_module_list.FindModule(module_ptr).get() != nullptr;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void ModuleList::FindSharedModules(const ModuleSpec &module_spec,
|
|
ModuleList &matching_module_list) {
|
|
GetSharedModuleList().FindModules(module_spec, matching_module_list);
|
|
}
|
|
|
|
size_t ModuleList::RemoveOrphanSharedModules(bool mandatory) {
|
|
return GetSharedModuleList().RemoveOrphans(mandatory);
|
|
}
|
|
|
|
Status ModuleList::GetSharedModule(const ModuleSpec &module_spec,
|
|
ModuleSP &module_sp,
|
|
const FileSpecList *module_search_paths_ptr,
|
|
ModuleSP *old_module_sp_ptr,
|
|
bool *did_create_ptr, bool always_create) {
|
|
ModuleList &shared_module_list = GetSharedModuleList();
|
|
std::lock_guard<std::recursive_mutex> guard(
|
|
shared_module_list.m_modules_mutex);
|
|
char path[PATH_MAX];
|
|
|
|
Status error;
|
|
|
|
module_sp.reset();
|
|
|
|
if (did_create_ptr)
|
|
*did_create_ptr = false;
|
|
if (old_module_sp_ptr)
|
|
old_module_sp_ptr->reset();
|
|
|
|
const UUID *uuid_ptr = module_spec.GetUUIDPtr();
|
|
const FileSpec &module_file_spec = module_spec.GetFileSpec();
|
|
const ArchSpec &arch = module_spec.GetArchitecture();
|
|
|
|
// Make sure no one else can try and get or create a module while this
|
|
// function is actively working on it by doing an extra lock on the global
|
|
// mutex list.
|
|
if (!always_create) {
|
|
ModuleList matching_module_list;
|
|
shared_module_list.FindModules(module_spec, matching_module_list);
|
|
const size_t num_matching_modules = matching_module_list.GetSize();
|
|
|
|
if (num_matching_modules > 0) {
|
|
for (size_t module_idx = 0; module_idx < num_matching_modules;
|
|
++module_idx) {
|
|
module_sp = matching_module_list.GetModuleAtIndex(module_idx);
|
|
|
|
// Make sure the file for the module hasn't been modified
|
|
if (module_sp->FileHasChanged()) {
|
|
if (old_module_sp_ptr && !*old_module_sp_ptr)
|
|
*old_module_sp_ptr = module_sp;
|
|
|
|
Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_MODULES));
|
|
if (log != nullptr)
|
|
LLDB_LOGF(
|
|
log, "%p '%s' module changed: removing from global module list",
|
|
static_cast<void *>(module_sp.get()),
|
|
module_sp->GetFileSpec().GetFilename().GetCString());
|
|
|
|
shared_module_list.Remove(module_sp);
|
|
module_sp.reset();
|
|
} else {
|
|
// The module matches and the module was not modified from when it
|
|
// was last loaded.
|
|
return error;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (module_sp)
|
|
return error;
|
|
|
|
module_sp = std::make_shared<Module>(module_spec);
|
|
// Make sure there are a module and an object file since we can specify a
|
|
// valid file path with an architecture that might not be in that file. By
|
|
// getting the object file we can guarantee that the architecture matches
|
|
if (module_sp->GetObjectFile()) {
|
|
// If we get in here we got the correct arch, now we just need to verify
|
|
// the UUID if one was given
|
|
if (uuid_ptr && *uuid_ptr != module_sp->GetUUID()) {
|
|
module_sp.reset();
|
|
} else {
|
|
if (module_sp->GetObjectFile() &&
|
|
module_sp->GetObjectFile()->GetType() ==
|
|
ObjectFile::eTypeStubLibrary) {
|
|
module_sp.reset();
|
|
} else {
|
|
if (did_create_ptr) {
|
|
*did_create_ptr = true;
|
|
}
|
|
|
|
shared_module_list.ReplaceEquivalent(module_sp);
|
|
return error;
|
|
}
|
|
}
|
|
} else {
|
|
module_sp.reset();
|
|
}
|
|
|
|
if (module_search_paths_ptr) {
|
|
const auto num_directories = module_search_paths_ptr->GetSize();
|
|
for (size_t idx = 0; idx < num_directories; ++idx) {
|
|
auto search_path_spec = module_search_paths_ptr->GetFileSpecAtIndex(idx);
|
|
FileSystem::Instance().Resolve(search_path_spec);
|
|
namespace fs = llvm::sys::fs;
|
|
if (!FileSystem::Instance().IsDirectory(search_path_spec))
|
|
continue;
|
|
search_path_spec.AppendPathComponent(
|
|
module_spec.GetFileSpec().GetFilename().GetStringRef());
|
|
if (!FileSystem::Instance().Exists(search_path_spec))
|
|
continue;
|
|
|
|
auto resolved_module_spec(module_spec);
|
|
resolved_module_spec.GetFileSpec() = search_path_spec;
|
|
module_sp = std::make_shared<Module>(resolved_module_spec);
|
|
if (module_sp->GetObjectFile()) {
|
|
// If we get in here we got the correct arch, now we just need to
|
|
// verify the UUID if one was given
|
|
if (uuid_ptr && *uuid_ptr != module_sp->GetUUID()) {
|
|
module_sp.reset();
|
|
} else {
|
|
if (module_sp->GetObjectFile()->GetType() ==
|
|
ObjectFile::eTypeStubLibrary) {
|
|
module_sp.reset();
|
|
} else {
|
|
if (did_create_ptr)
|
|
*did_create_ptr = true;
|
|
|
|
shared_module_list.ReplaceEquivalent(module_sp);
|
|
return Status();
|
|
}
|
|
}
|
|
} else {
|
|
module_sp.reset();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Either the file didn't exist where at the path, or no path was given, so
|
|
// we now have to use more extreme measures to try and find the appropriate
|
|
// module.
|
|
|
|
// Fixup the incoming path in case the path points to a valid file, yet the
|
|
// arch or UUID (if one was passed in) don't match.
|
|
ModuleSpec located_binary_modulespec =
|
|
Symbols::LocateExecutableObjectFile(module_spec);
|
|
|
|
// Don't look for the file if it appears to be the same one we already
|
|
// checked for above...
|
|
if (located_binary_modulespec.GetFileSpec() != module_file_spec) {
|
|
if (!FileSystem::Instance().Exists(
|
|
located_binary_modulespec.GetFileSpec())) {
|
|
located_binary_modulespec.GetFileSpec().GetPath(path, sizeof(path));
|
|
if (path[0] == '\0')
|
|
module_file_spec.GetPath(path, sizeof(path));
|
|
// How can this check ever be true? This branch it is false, and we
|
|
// haven't modified file_spec.
|
|
if (FileSystem::Instance().Exists(
|
|
located_binary_modulespec.GetFileSpec())) {
|
|
std::string uuid_str;
|
|
if (uuid_ptr && uuid_ptr->IsValid())
|
|
uuid_str = uuid_ptr->GetAsString();
|
|
|
|
if (arch.IsValid()) {
|
|
if (!uuid_str.empty())
|
|
error.SetErrorStringWithFormat(
|
|
"'%s' does not contain the %s architecture and UUID %s", path,
|
|
arch.GetArchitectureName(), uuid_str.c_str());
|
|
else
|
|
error.SetErrorStringWithFormat(
|
|
"'%s' does not contain the %s architecture.", path,
|
|
arch.GetArchitectureName());
|
|
}
|
|
} else {
|
|
error.SetErrorStringWithFormat("'%s' does not exist", path);
|
|
}
|
|
if (error.Fail())
|
|
module_sp.reset();
|
|
return error;
|
|
}
|
|
|
|
// Make sure no one else can try and get or create a module while this
|
|
// function is actively working on it by doing an extra lock on the global
|
|
// mutex list.
|
|
ModuleSpec platform_module_spec(module_spec);
|
|
platform_module_spec.GetFileSpec() =
|
|
located_binary_modulespec.GetFileSpec();
|
|
platform_module_spec.GetPlatformFileSpec() =
|
|
located_binary_modulespec.GetFileSpec();
|
|
platform_module_spec.GetSymbolFileSpec() =
|
|
located_binary_modulespec.GetSymbolFileSpec();
|
|
ModuleList matching_module_list;
|
|
shared_module_list.FindModules(platform_module_spec, matching_module_list);
|
|
if (!matching_module_list.IsEmpty()) {
|
|
module_sp = matching_module_list.GetModuleAtIndex(0);
|
|
|
|
// If we didn't have a UUID in mind when looking for the object file,
|
|
// then we should make sure the modification time hasn't changed!
|
|
if (platform_module_spec.GetUUIDPtr() == nullptr) {
|
|
auto file_spec_mod_time = FileSystem::Instance().GetModificationTime(
|
|
located_binary_modulespec.GetFileSpec());
|
|
if (file_spec_mod_time != llvm::sys::TimePoint<>()) {
|
|
if (file_spec_mod_time != module_sp->GetModificationTime()) {
|
|
if (old_module_sp_ptr)
|
|
*old_module_sp_ptr = module_sp;
|
|
shared_module_list.Remove(module_sp);
|
|
module_sp.reset();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!module_sp) {
|
|
module_sp = std::make_shared<Module>(platform_module_spec);
|
|
// Make sure there are a module and an object file since we can specify a
|
|
// valid file path with an architecture that might not be in that file.
|
|
// By getting the object file we can guarantee that the architecture
|
|
// matches
|
|
if (module_sp && module_sp->GetObjectFile()) {
|
|
if (module_sp->GetObjectFile()->GetType() ==
|
|
ObjectFile::eTypeStubLibrary) {
|
|
module_sp.reset();
|
|
} else {
|
|
if (did_create_ptr)
|
|
*did_create_ptr = true;
|
|
|
|
shared_module_list.ReplaceEquivalent(module_sp);
|
|
}
|
|
} else {
|
|
located_binary_modulespec.GetFileSpec().GetPath(path, sizeof(path));
|
|
|
|
if (located_binary_modulespec.GetFileSpec()) {
|
|
if (arch.IsValid())
|
|
error.SetErrorStringWithFormat(
|
|
"unable to open %s architecture in '%s'",
|
|
arch.GetArchitectureName(), path);
|
|
else
|
|
error.SetErrorStringWithFormat("unable to open '%s'", path);
|
|
} else {
|
|
std::string uuid_str;
|
|
if (uuid_ptr && uuid_ptr->IsValid())
|
|
uuid_str = uuid_ptr->GetAsString();
|
|
|
|
if (!uuid_str.empty())
|
|
error.SetErrorStringWithFormat(
|
|
"cannot locate a module for UUID '%s'", uuid_str.c_str());
|
|
else
|
|
error.SetErrorStringWithFormat("cannot locate a module");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
bool ModuleList::RemoveSharedModule(lldb::ModuleSP &module_sp) {
|
|
return GetSharedModuleList().Remove(module_sp);
|
|
}
|
|
|
|
bool ModuleList::RemoveSharedModuleIfOrphaned(const Module *module_ptr) {
|
|
return GetSharedModuleList().RemoveIfOrphaned(module_ptr);
|
|
}
|
|
|
|
bool ModuleList::LoadScriptingResourcesInTarget(Target *target,
|
|
std::list<Status> &errors,
|
|
Stream *feedback_stream,
|
|
bool continue_on_error) {
|
|
if (!target)
|
|
return false;
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
for (auto module : m_modules) {
|
|
Status error;
|
|
if (module) {
|
|
if (!module->LoadScriptingResourceInTarget(target, error,
|
|
feedback_stream)) {
|
|
if (error.Fail() && error.AsCString()) {
|
|
error.SetErrorStringWithFormat("unable to load scripting data for "
|
|
"module %s - error reported was %s",
|
|
module->GetFileSpec()
|
|
.GetFileNameStrippingExtension()
|
|
.GetCString(),
|
|
error.AsCString());
|
|
errors.push_back(error);
|
|
|
|
if (!continue_on_error)
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return errors.empty();
|
|
}
|
|
|
|
void ModuleList::ForEach(
|
|
std::function<bool(const ModuleSP &module_sp)> const &callback) const {
|
|
std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
|
|
for (const auto &module : m_modules) {
|
|
// If the callback returns false, then stop iterating and break out
|
|
if (!callback(module))
|
|
break;
|
|
}
|
|
}
|