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 // Set default core style if it isn't set. 61 if (core_style == SaveCoreStyle::eSaveCoreUnspecified) 62 core_style = SaveCoreStyle::eSaveCoreStackOnly; 63 64 if (!process_sp) 65 return false; 66 67 MinidumpFileBuilder builder; 68 69 Target &target = process_sp->GetTarget(); 70 71 error = builder.AddSystemInfo(target.GetArchitecture().GetTriple()); 72 if (error.Fail()) 73 return false; 74 75 error = builder.AddModuleList(target); 76 if (error.Fail()) 77 return false; 78 79 builder.AddMiscInfo(process_sp); 80 81 error = builder.AddThreadList(process_sp); 82 if (error.Fail()) 83 return false; 84 85 // Add any exceptions but only if there are any in any threads. 86 builder.AddExceptions(process_sp); 87 88 error = builder.AddMemoryList(process_sp, core_style); 89 if (error.Fail()) 90 return false; 91 92 if (target.GetArchitecture().GetTriple().getOS() == 93 llvm::Triple::OSType::Linux) { 94 builder.AddLinuxFileStreams(process_sp); 95 } 96 97 llvm::Expected<lldb::FileUP> maybe_core_file = FileSystem::Instance().Open( 98 outfile, File::eOpenOptionWriteOnly | File::eOpenOptionCanCreate); 99 if (!maybe_core_file) { 100 error = maybe_core_file.takeError(); 101 return false; 102 } 103 lldb::FileUP core_file = std::move(maybe_core_file.get()); 104 105 error = builder.Dump(core_file); 106 if (error.Fail()) 107 return false; 108 109 return true; 110 } 111