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
20using namespace lldb;
21using namespace lldb_private;
22
23LLDB_PLUGIN_DEFINE(ObjectFileMinidump)
24
25void ObjectFileMinidump::Initialize() {
26  PluginManager::RegisterPlugin(
27      GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance,
28      CreateMemoryInstance, GetModuleSpecifications, SaveCore);
29}
30
31void ObjectFileMinidump::Terminate() {
32  PluginManager::UnregisterPlugin(CreateInstance);
33}
34
35ObjectFile *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
42ObjectFile *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
48size_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
56bool 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