1//===-- ObjectFileJIT.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_EXPRESSION_OBJECTFILEJIT_H
10#define LLDB_EXPRESSION_OBJECTFILEJIT_H
11
12#include "lldb/Core/Address.h"
13#include "lldb/Core/Section.h"
14#include "lldb/Symbol/ObjectFile.h"
15#include "lldb/Symbol/Symtab.h"
16#include "lldb/Utility/ArchSpec.h"
17
18namespace lldb_private {
19
20class ObjectFileJITDelegate {
21public:
22 ObjectFileJITDelegate() = default;
23 virtual ~ObjectFileJITDelegate() = default;
24 virtual lldb::ByteOrder GetByteOrder() const = 0;
25 virtual uint32_t GetAddressByteSize() const = 0;
26 virtual void PopulateSymtab(lldb_private::ObjectFile *obj_file,
27 lldb_private::Symtab &symtab) = 0;
28 virtual void PopulateSectionList(lldb_private::ObjectFile *obj_file,
29 lldb_private::SectionList &section_list) = 0;
30 virtual ArchSpec GetArchitecture() = 0;
31};
32
33class ObjectFileJIT : public ObjectFile {
34public:
35 ObjectFileJIT(const lldb::ModuleSP &module_sp,
36 const lldb::ObjectFileJITDelegateSP &delegate_sp);
37
38 ~ObjectFileJIT() override;
39
40 // Static Functions
41 static void Initialize();
42
43 static void Terminate();
44
45 static llvm::StringRef GetPluginNameStatic() { return "jit"; }
46
47 static llvm::StringRef GetPluginDescriptionStatic() {
48 return "JIT code object file";
49 }
50
51 static lldb_private::ObjectFile *
52 CreateInstance(const lldb::ModuleSP &module_sp, lldb::DataBufferSP data_sp,
53 lldb::offset_t data_offset, const lldb_private::FileSpec *file,
54 lldb::offset_t file_offset, lldb::offset_t length);
55
56 static lldb_private::ObjectFile *CreateMemoryInstance(
57 const lldb::ModuleSP &module_sp, lldb::WritableDataBufferSP data_sp,
58 const lldb::ProcessSP &process_sp, lldb::addr_t header_addr);
59
60 static size_t GetModuleSpecifications(const lldb_private::FileSpec &file,
61 lldb::DataBufferSP &data_sp,
62 lldb::offset_t data_offset,
63 lldb::offset_t file_offset,
64 lldb::offset_t length,
65 lldb_private::ModuleSpecList &specs);
66
67 // LLVM RTTI support
68 static char ID;
69 bool isA(const void *ClassID) const override {
70 return ClassID == &ID || ObjectFile::isA(ClassID);
71 }
72 static bool classof(const ObjectFile *obj) { return obj->isA(ClassID: &ID); }
73
74 // Member Functions
75 bool ParseHeader() override;
76
77 bool SetLoadAddress(lldb_private::Target &target, lldb::addr_t value,
78 bool value_is_offset) override;
79
80 lldb::ByteOrder GetByteOrder() const override;
81
82 bool IsExecutable() const override;
83
84 uint32_t GetAddressByteSize() const override;
85
86 void ParseSymtab(lldb_private::Symtab &symtab) override;
87
88 bool IsStripped() override;
89
90 void CreateSections(lldb_private::SectionList &unified_section_list) override;
91
92 void Dump(lldb_private::Stream *s) override;
93
94 lldb_private::ArchSpec GetArchitecture() override;
95
96 lldb_private::UUID GetUUID() override;
97
98 uint32_t GetDependentModules(lldb_private::FileSpecList &files) override;
99
100 size_t ReadSectionData(lldb_private::Section *section,
101 lldb::offset_t section_offset, void *dst,
102 size_t dst_len) override;
103
104 size_t ReadSectionData(lldb_private::Section *section,
105 lldb_private::DataExtractor &section_data) override;
106
107 lldb_private::Address GetEntryPointAddress() override;
108
109 lldb_private::Address GetBaseAddress() override;
110
111 ObjectFile::Type CalculateType() override;
112
113 ObjectFile::Strata CalculateStrata() override;
114
115 // PluginInterface protocol
116 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
117
118protected:
119 lldb::ObjectFileJITDelegateWP m_delegate_wp;
120};
121} // namespace lldb_private
122
123#endif // LLDB_EXPRESSION_OBJECTFILEJIT_H
124

source code of lldb/include/lldb/Expression/ObjectFileJIT.h