1 //===-- ObjectFileMinidump.cpp --------------------------------------------===// 2 // 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 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "ObjectFileMinidump.h" 10 11 #include "MinidumpFileBuilder.h" 12 13 #include "lldb/Core/ModuleSpec.h" 14 #include "lldb/Core/PluginManager.h" 15 #include "lldb/Core/Section.h" 16 #include "lldb/Target/Process.h" 17 18 #include "llvm/Support/FileSystem.h" 19 20 using namespace lldb; 21 using namespace lldb_private; 22 23 LLDB_PLUGIN_DEFINE(ObjectFileMinidump) 24 25 void ObjectFileMinidump::Initialize() { 26 PluginManager::RegisterPlugin( 27 GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance, 28 CreateMemoryInstance, GetModuleSpecifications, SaveCore); 29 } 30 31 void ObjectFileMinidump::Terminate() { 32 PluginManager::UnregisterPlugin(CreateInstance); 33 } 34 35 ObjectFile *ObjectFileMinidump::CreateInstance( 36 const lldb::ModuleSP &module_sp, lldb::DataBufferSP data_sp, 37 lldb::offset_t data_offset, const lldb_private::FileSpec *file, 38 lldb::offset_t offset, lldb::offset_t length) { 39 return nullptr; 40 } 41 42 ObjectFile *ObjectFileMinidump::CreateMemoryInstance( 43 const lldb::ModuleSP &module_sp, WritableDataBufferSP data_sp, 44 const ProcessSP &process_sp, lldb::addr_t header_addr) { 45 return nullptr; 46 } 47 48 size_t ObjectFileMinidump::GetModuleSpecifications( 49 const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp, 50 lldb::offset_t data_offset, lldb::offset_t file_offset, 51 lldb::offset_t length, lldb_private::ModuleSpecList &specs) { 52 specs.Clear(); 53 return 0; 54 } 55 56 bool ObjectFileMinidump::SaveCore(const lldb::ProcessSP &process_sp, 57 const lldb_private::FileSpec &outfile, 58 lldb::SaveCoreStyle &core_style, 59 lldb_private::Status &error) { 60 if (core_style != SaveCoreStyle::eSaveCoreStackOnly) { 61 error.SetErrorString("Only stack minidumps supported yet."); 62 return false; 63 } 64 65 if (!process_sp) 66 return false; 67 68 MinidumpFileBuilder builder; 69 70 Target &target = process_sp->GetTarget(); 71 72 error = builder.AddSystemInfo(target.GetArchitecture().GetTriple()); 73 if (error.Fail()) 74 return false; 75 76 error = builder.AddModuleList(target); 77 if (error.Fail()) 78 return false; 79 80 builder.AddMiscInfo(process_sp); 81 82 if (target.GetArchitecture().GetMachine() == llvm::Triple::ArchType::x86_64) { 83 error = builder.AddThreadList(process_sp); 84 if (error.Fail()) 85 return false; 86 87 error = builder.AddException(process_sp); 88 if (error.Fail()) 89 return false; 90 91 error = builder.AddMemoryList(process_sp); 92 if (error.Fail()) 93 return false; 94 } 95 96 if (target.GetArchitecture().GetTriple().getOS() == 97 llvm::Triple::OSType::Linux) { 98 builder.AddLinuxFileStreams(process_sp); 99 } 100 101 llvm::Expected<lldb::FileUP> maybe_core_file = FileSystem::Instance().Open( 102 outfile, File::eOpenOptionWriteOnly | File::eOpenOptionCanCreate); 103 if (!maybe_core_file) { 104 error = maybe_core_file.takeError(); 105 return false; 106 } 107 lldb::FileUP core_file = std::move(maybe_core_file.get()); 108 109 error = builder.Dump(core_file); 110 if (error.Fail()) 111 return false; 112 113 return true; 114 } 115