1 //===-- ObjectFilePlaceholder.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_OBJECTFILE_PLACEHOLDER_OBJECTFILEPLACEHOLDER_H
10 #define LLDB_SOURCE_PLUGINS_OBJECTFILE_PLACEHOLDER_OBJECTFILEPLACEHOLDER_H
11 
12 #include "lldb/Symbol/ObjectFile.h"
13 
14 #include "lldb/Target/Target.h"
15 #include "lldb/Utility/ArchSpec.h"
16 #include "lldb/Utility/FileSpec.h"
17 #include "lldb/Utility/UUID.h"
18 #include "lldb/lldb-private.h"
19 
20 /// A minimal ObjectFile implementation providing a dummy object file for the
21 /// cases when the real module binary is not available. This allows the module
22 /// to show up in "image list" and symbols to be added to it.
23 class ObjectFilePlaceholder : public lldb_private::ObjectFile {
24 public:
25   // Static Functions
26   static void Initialize() {}
27 
28   static void Terminate() {}
29 
30   static llvm::StringRef GetPluginNameStatic() { return "placeholder"; }
31 
32   ObjectFilePlaceholder(const lldb::ModuleSP &module_sp,
33                         const lldb_private::ModuleSpec &module_spec,
34                         lldb::addr_t base, lldb::addr_t size);
35 
36   llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
37   bool ParseHeader() override { return true; }
38   Type CalculateType() override { return eTypeUnknown; }
39   Strata CalculateStrata() override { return eStrataUnknown; }
40   uint32_t GetDependentModules(lldb_private::FileSpecList &file_list) override {
41     return 0;
42   }
43   bool IsExecutable() const override { return false; }
44   lldb_private::ArchSpec GetArchitecture() override { return m_arch; }
45   lldb_private::UUID GetUUID() override { return m_uuid; }
46   void ParseSymtab(lldb_private::Symtab &symtab) override {}
47   bool IsStripped() override { return true; }
48   lldb::ByteOrder GetByteOrder() const override {
49     return m_arch.GetByteOrder();
50   }
51 
52   uint32_t GetAddressByteSize() const override {
53     return m_arch.GetAddressByteSize();
54   }
55 
56   lldb_private::Address GetBaseAddress() override;
57 
58   void CreateSections(lldb_private::SectionList &unified_section_list) override;
59 
60   bool SetLoadAddress(lldb_private::Target &target, lldb::addr_t value,
61                       bool value_is_offset) override;
62 
63   void Dump(lldb_private::Stream *s) override;
64 
65   lldb::addr_t GetBaseImageAddress() const { return m_base; }
66 
67 private:
68   lldb_private::ArchSpec m_arch;
69   lldb_private::UUID m_uuid;
70   lldb::addr_t m_base;
71   lldb::addr_t m_size;
72 };
73 
74 #endif // LLDB_SOURCE_PLUGINS_OBJECTFILE_PLACEHOLDER_OBJECTFILEPLACEHOLDER_H
75