138 lines
4.2 KiB
C++
138 lines
4.2 KiB
C++
//===-- ObjectFileMinidump.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 "ObjectFileMinidump.h"
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#include "MinidumpFileBuilder.h"
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#include "lldb/Core/ModuleSpec.h"
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#include "lldb/Core/PluginManager.h"
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#include "lldb/Core/Section.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Utility/LLDBLog.h"
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#include "lldb/Utility/Log.h"
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#include "llvm/Support/FileSystem.h"
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using namespace lldb;
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using namespace lldb_private;
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LLDB_PLUGIN_DEFINE(ObjectFileMinidump)
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void ObjectFileMinidump::Initialize() {
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PluginManager::RegisterPlugin(
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GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance,
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CreateMemoryInstance, GetModuleSpecifications, SaveCore);
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}
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void ObjectFileMinidump::Terminate() {
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PluginManager::UnregisterPlugin(CreateInstance);
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}
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ObjectFile *ObjectFileMinidump::CreateInstance(
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const lldb::ModuleSP &module_sp, lldb::DataBufferSP data_sp,
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lldb::offset_t data_offset, const lldb_private::FileSpec *file,
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lldb::offset_t offset, lldb::offset_t length) {
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return nullptr;
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}
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ObjectFile *ObjectFileMinidump::CreateMemoryInstance(
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const lldb::ModuleSP &module_sp, WritableDataBufferSP data_sp,
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const ProcessSP &process_sp, lldb::addr_t header_addr) {
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return nullptr;
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}
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size_t ObjectFileMinidump::GetModuleSpecifications(
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const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp,
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lldb::offset_t data_offset, lldb::offset_t file_offset,
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lldb::offset_t length, lldb_private::ModuleSpecList &specs) {
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specs.Clear();
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return 0;
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}
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bool ObjectFileMinidump::SaveCore(const lldb::ProcessSP &process_sp,
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const lldb_private::SaveCoreOptions &options,
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lldb_private::Status &error) {
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// Output file and process_sp are both checked in PluginManager::SaveCore.
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assert(options.GetOutputFile().has_value());
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assert(process_sp);
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// Minidump defaults to stacks only.
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SaveCoreStyle core_style = options.GetStyle();
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if (core_style == SaveCoreStyle::eSaveCoreUnspecified)
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core_style = SaveCoreStyle::eSaveCoreStackOnly;
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llvm::Expected<lldb::FileUP> maybe_core_file = FileSystem::Instance().Open(
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options.GetOutputFile().value(),
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File::eOpenOptionWriteOnly | File::eOpenOptionCanCreate);
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if (!maybe_core_file) {
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error = maybe_core_file.takeError();
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return false;
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}
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MinidumpFileBuilder builder(std::move(maybe_core_file.get()), process_sp);
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Log *log = GetLog(LLDBLog::Object);
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error = builder.AddHeaderAndCalculateDirectories();
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if (error.Fail()) {
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LLDB_LOGF(log, "AddHeaderAndCalculateDirectories failed: %s",
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error.AsCString());
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return false;
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};
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error = builder.AddSystemInfo();
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if (error.Fail()) {
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LLDB_LOGF(log, "AddSystemInfo failed: %s", error.AsCString());
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return false;
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}
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error = builder.AddModuleList();
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if (error.Fail()) {
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LLDB_LOGF(log, "AddModuleList failed: %s", error.AsCString());
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return false;
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}
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error = builder.AddMiscInfo();
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if (error.Fail()) {
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LLDB_LOGF(log, "AddMiscInfo failed: %s", error.AsCString());
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return false;
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}
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error = builder.AddThreadList();
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if (error.Fail()) {
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LLDB_LOGF(log, "AddThreadList failed: %s", error.AsCString());
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return false;
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}
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error = builder.AddLinuxFileStreams();
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if (error.Fail()) {
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LLDB_LOGF(log, "AddLinuxFileStreams failed: %s", error.AsCString());
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return false;
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}
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// Add any exceptions but only if there are any in any threads.
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error = builder.AddExceptions();
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if (error.Fail()) {
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LLDB_LOGF(log, "AddExceptions failed: %s", error.AsCString());
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return false;
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}
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// Note: add memory HAS to be the last thing we do. It can overflow into 64b
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// land and many RVA's only support 32b
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error = builder.AddMemoryList(core_style);
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if (error.Fail()) {
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LLDB_LOGF(log, "AddMemoryList failed: %s", error.AsCString());
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return false;
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}
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error = builder.DumpFile();
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if (error.Fail()) {
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LLDB_LOGF(log, "DumpFile failed: %s", error.AsCString());
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return false;
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}
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return true;
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}
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