|
150
|
1 //===-- SymbolVendor.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 "lldb/Symbol/SymbolVendor.h"
|
|
|
10
|
|
|
11 #include "lldb/Core/Module.h"
|
|
|
12 #include "lldb/Core/PluginManager.h"
|
|
|
13 #include "lldb/Symbol/CompileUnit.h"
|
|
|
14 #include "lldb/Symbol/ObjectFile.h"
|
|
|
15 #include "lldb/Symbol/SymbolFile.h"
|
|
|
16 #include "lldb/Utility/Stream.h"
|
|
|
17
|
|
|
18 using namespace lldb;
|
|
|
19 using namespace lldb_private;
|
|
|
20
|
|
|
21 // FindPlugin
|
|
|
22 //
|
|
|
23 // Platforms can register a callback to use when creating symbol vendors to
|
|
|
24 // allow for complex debug information file setups, and to also allow for
|
|
|
25 // finding separate debug information files.
|
|
|
26 SymbolVendor *SymbolVendor::FindPlugin(const lldb::ModuleSP &module_sp,
|
|
|
27 lldb_private::Stream *feedback_strm) {
|
|
|
28 std::unique_ptr<SymbolVendor> instance_up;
|
|
|
29 SymbolVendorCreateInstance create_callback;
|
|
|
30
|
|
|
31 for (size_t idx = 0;
|
|
|
32 (create_callback = PluginManager::GetSymbolVendorCreateCallbackAtIndex(
|
|
|
33 idx)) != nullptr;
|
|
|
34 ++idx) {
|
|
|
35 instance_up.reset(create_callback(module_sp, feedback_strm));
|
|
|
36
|
|
|
37 if (instance_up) {
|
|
|
38 return instance_up.release();
|
|
|
39 }
|
|
|
40 }
|
|
|
41 // The default implementation just tries to create debug information using
|
|
|
42 // the file representation for the module.
|
|
|
43 ObjectFileSP sym_objfile_sp;
|
|
|
44 FileSpec sym_spec = module_sp->GetSymbolFileFileSpec();
|
|
|
45 if (sym_spec && sym_spec != module_sp->GetObjectFile()->GetFileSpec()) {
|
|
|
46 DataBufferSP data_sp;
|
|
|
47 offset_t data_offset = 0;
|
|
|
48 sym_objfile_sp = ObjectFile::FindPlugin(
|
|
|
49 module_sp, &sym_spec, 0, FileSystem::Instance().GetByteSize(sym_spec),
|
|
|
50 data_sp, data_offset);
|
|
|
51 }
|
|
|
52 if (!sym_objfile_sp)
|
|
|
53 sym_objfile_sp = module_sp->GetObjectFile()->shared_from_this();
|
|
221
|
54 instance_up = std::make_unique<SymbolVendor>(module_sp);
|
|
150
|
55 instance_up->AddSymbolFileRepresentation(sym_objfile_sp);
|
|
|
56 return instance_up.release();
|
|
|
57 }
|
|
|
58
|
|
|
59 // SymbolVendor constructor
|
|
|
60 SymbolVendor::SymbolVendor(const lldb::ModuleSP &module_sp)
|
|
|
61 : ModuleChild(module_sp), m_sym_file_up() {}
|
|
|
62
|
|
|
63 // Add a representation given an object file.
|
|
|
64 void SymbolVendor::AddSymbolFileRepresentation(const ObjectFileSP &objfile_sp) {
|
|
|
65 ModuleSP module_sp(GetModule());
|
|
|
66 if (module_sp) {
|
|
|
67 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
|
|
|
68 if (objfile_sp)
|
|
|
69 m_sym_file_up.reset(SymbolFile::FindPlugin(objfile_sp));
|
|
|
70 }
|
|
|
71 }
|
