1 //===-- ObjectContainerMachOFileset.h ---------------------------*- C++ -*-===//
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 #ifndef LLDB_SOURCE_PLUGINS_OBJECTCONTAINER_MACH_O_FILESET_OBJECTCONTAINERMADCHOFILESET_H
10 #define LLDB_SOURCE_PLUGINS_OBJECTCONTAINER_MACH_O_FILESET_OBJECTCONTAINERMADCHOFILESET_H
11 
12 #include "lldb/Host/SafeMachO.h"
13 #include "lldb/Symbol/ObjectContainer.h"
14 #include "lldb/Utility/FileSpec.h"
15 
16 namespace lldb_private {
17 
18 class ObjectContainerMachOFileset : public lldb_private::ObjectContainer {
19 public:
20   ObjectContainerMachOFileset(const lldb::ModuleSP &module_sp,
21                               lldb::DataBufferSP &data_sp,
22                               lldb::offset_t data_offset,
23                               const lldb_private::FileSpec *file,
24                               lldb::offset_t offset, lldb::offset_t length);
25 
26   ObjectContainerMachOFileset(const lldb::ModuleSP &module_sp,
27                               lldb::WritableDataBufferSP data_sp,
28                               const lldb::ProcessSP &process_sp,
29                               lldb::addr_t header_addr);
30 
31   ~ObjectContainerMachOFileset() override;
32 
33   static void Initialize();
34   static void Terminate();
35 
GetPluginNameStatic()36   static llvm::StringRef GetPluginNameStatic() { return "mach-o-fileset"; }
37 
GetPluginDescriptionStatic()38   static llvm::StringRef GetPluginDescriptionStatic() {
39     return "Mach-O Fileset container reader.";
40   }
41 
42   static lldb_private::ObjectContainer *
43   CreateInstance(const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp,
44                  lldb::offset_t data_offset, const lldb_private::FileSpec *file,
45                  lldb::offset_t offset, lldb::offset_t length);
46 
47   static lldb_private::ObjectContainer *CreateMemoryInstance(
48       const lldb::ModuleSP &module_sp, lldb::WritableDataBufferSP data_sp,
49       const lldb::ProcessSP &process_sp, lldb::addr_t header_addr);
50 
51   static size_t GetModuleSpecifications(const lldb_private::FileSpec &file,
52                                         lldb::DataBufferSP &data_sp,
53                                         lldb::offset_t data_offset,
54                                         lldb::offset_t file_offset,
55                                         lldb::offset_t length,
56                                         lldb_private::ModuleSpecList &specs);
57 
58   static bool MagicBytesMatch(const lldb_private::DataExtractor &data);
59   static bool MagicBytesMatch(lldb::DataBufferSP data_sp,
60                               lldb::addr_t data_offset,
61                               lldb::addr_t data_length);
62 
63   bool ParseHeader() override;
64 
GetNumObjects()65   size_t GetNumObjects() const override { return m_entries.size(); }
66 
67   lldb::ObjectFileSP GetObjectFile(const lldb_private::FileSpec *file) override;
68 
GetPluginName()69   llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
70 
71   struct Entry {
EntryEntry72     Entry(uint64_t vmaddr, uint64_t fileoff, std::string id)
73         : vmaddr(vmaddr), fileoff(fileoff), id(id) {}
74     uint64_t vmaddr;
75     uint64_t fileoff;
76     std::string id;
77   };
78 
79   Entry *FindEntry(llvm::StringRef id);
80 
81 private:
82   static bool ParseHeader(lldb_private::DataExtractor &data,
83                           const lldb_private::FileSpec &file,
84                           lldb::offset_t file_offset,
85                           std::vector<Entry> &entries);
86 
87   std::vector<Entry> m_entries;
88   lldb::ProcessWP m_process_wp;
89   const lldb::addr_t m_memory_addr;
90 };
91 
92 } // namespace lldb_private
93 
94 #endif // LLDB_SOURCE_PLUGINS_OBJECTCONTAINER_MACH_O_FILESET_OBJECTCONTAINERMADCHOFILESET_H
95