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Chris Lattner30fdc8d2010-06-08 16:52:24 +00001//===-- SymbolFile.cpp ------------------------------------------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
Chris Lattner30fdc8d2010-06-08 16:52:24 +000010#include "lldb/Symbol/SymbolFile.h"
Greg Claytonc982b3d2011-11-28 01:45:00 +000011
Greg Clayton2d95dc9b2010-11-10 04:57:04 +000012#include "lldb/Core/Module.h"
Chris Lattner30fdc8d2010-06-08 16:52:24 +000013#include "lldb/Core/PluginManager.h"
Greg Clayton2d95dc9b2010-11-10 04:57:04 +000014#include "lldb/Symbol/ObjectFile.h"
Ravitheja Addepally40697302015-10-08 09:45:41 +000015#include "lldb/Symbol/TypeMap.h"
Greg Clayton56939cb2015-09-17 22:23:34 +000016#include "lldb/Symbol/TypeSystem.h"
Greg Clayton99558cc42015-08-24 23:46:31 +000017#include "lldb/Symbol/VariableList.h"
Zachary Turner6f9e6902017-03-03 20:56:28 +000018#include "lldb/Utility/Log.h"
Zachary Turnerbf9a7732017-02-02 21:39:50 +000019#include "lldb/Utility/StreamString.h"
Kate Stoneb9c1b512016-09-06 20:57:50 +000020#include "lldb/lldb-private.h"
Chris Lattner30fdc8d2010-06-08 16:52:24 +000021
22using namespace lldb_private;
23
Jim Ingham7fca8c02017-04-28 00:51:06 +000024void SymbolFile::PreloadSymbols() {
25 // No-op for most implementations.
26}
27
Kate Stoneb9c1b512016-09-06 20:57:50 +000028SymbolFile *SymbolFile::FindPlugin(ObjectFile *obj_file) {
29 std::unique_ptr<SymbolFile> best_symfile_ap;
30 if (obj_file != nullptr) {
Greg Clayton3046e662013-07-10 01:23:25 +000031
Kate Stoneb9c1b512016-09-06 20:57:50 +000032 // We need to test the abilities of this section list. So create what it
Adrian Prantl05097242018-04-30 16:49:04 +000033 // would be with this new obj_file.
Kate Stoneb9c1b512016-09-06 20:57:50 +000034 lldb::ModuleSP module_sp(obj_file->GetModule());
35 if (module_sp) {
36 // Default to the main module section list.
37 ObjectFile *module_obj_file = module_sp->GetObjectFile();
38 if (module_obj_file != obj_file) {
39 // Make sure the main object file's sections are created
40 module_obj_file->GetSectionList();
41 obj_file->CreateSections(*module_sp->GetUnifiedSectionList());
42 }
Chris Lattner30fdc8d2010-06-08 16:52:24 +000043 }
Kate Stoneb9c1b512016-09-06 20:57:50 +000044
45 // TODO: Load any plug-ins in the appropriate plug-in search paths and
46 // iterate over all of them to find the best one for the job.
47
48 uint32_t best_symfile_abilities = 0;
49
50 SymbolFileCreateInstance create_callback;
51 for (uint32_t idx = 0;
52 (create_callback = PluginManager::GetSymbolFileCreateCallbackAtIndex(
53 idx)) != nullptr;
54 ++idx) {
55 std::unique_ptr<SymbolFile> curr_symfile_ap(create_callback(obj_file));
56
57 if (curr_symfile_ap.get()) {
58 const uint32_t sym_file_abilities = curr_symfile_ap->GetAbilities();
59 if (sym_file_abilities > best_symfile_abilities) {
60 best_symfile_abilities = sym_file_abilities;
61 best_symfile_ap.reset(curr_symfile_ap.release());
Adrian Prantl05097242018-04-30 16:49:04 +000062 // If any symbol file parser has all of the abilities, then we should
63 // just stop looking.
Kate Stoneb9c1b512016-09-06 20:57:50 +000064 if ((kAllAbilities & sym_file_abilities) == kAllAbilities)
65 break;
66 }
67 }
68 }
69 if (best_symfile_ap.get()) {
Adrian Prantl05097242018-04-30 16:49:04 +000070 // Let the winning symbol file parser initialize itself more completely
71 // now that it has been chosen
Kate Stoneb9c1b512016-09-06 20:57:50 +000072 best_symfile_ap->InitializeObject();
73 }
74 }
75 return best_symfile_ap.release();
Chris Lattner30fdc8d2010-06-08 16:52:24 +000076}
77
Kate Stoneb9c1b512016-09-06 20:57:50 +000078TypeList *SymbolFile::GetTypeList() {
79 if (m_obj_file)
80 return m_obj_file->GetModule()->GetTypeList();
81 return nullptr;
Greg Clayton2d95dc9b2010-11-10 04:57:04 +000082}
Greg Clayton6beaaa62011-01-17 03:46:26 +000083
Kate Stoneb9c1b512016-09-06 20:57:50 +000084TypeSystem *SymbolFile::GetTypeSystemForLanguage(lldb::LanguageType language) {
85 TypeSystem *type_system =
86 m_obj_file->GetModule()->GetTypeSystemForLanguage(language);
87 if (type_system)
88 type_system->SetSymbolFile(this);
89 return type_system;
Greg Clayton8b4edba2015-08-14 20:02:05 +000090}
91
Kate Stoneb9c1b512016-09-06 20:57:50 +000092uint32_t SymbolFile::ResolveSymbolContext(const FileSpec &file_spec,
93 uint32_t line, bool check_inlines,
94 uint32_t resolve_scope,
95 SymbolContextList &sc_list) {
96 return 0;
Greg Clayton99558cc42015-08-24 23:46:31 +000097}
98
Kate Stoneb9c1b512016-09-06 20:57:50 +000099uint32_t SymbolFile::FindGlobalVariables(
100 const ConstString &name, const CompilerDeclContext *parent_decl_ctx,
101 bool append, uint32_t max_matches, VariableList &variables) {
102 if (!append)
103 variables.Clear();
104 return 0;
Greg Clayton99558cc42015-08-24 23:46:31 +0000105}
106
Kate Stoneb9c1b512016-09-06 20:57:50 +0000107uint32_t SymbolFile::FindGlobalVariables(const RegularExpression &regex,
108 bool append, uint32_t max_matches,
109 VariableList &variables) {
110 if (!append)
111 variables.Clear();
112 return 0;
Greg Clayton99558cc42015-08-24 23:46:31 +0000113}
114
Kate Stoneb9c1b512016-09-06 20:57:50 +0000115uint32_t SymbolFile::FindFunctions(const ConstString &name,
116 const CompilerDeclContext *parent_decl_ctx,
117 uint32_t name_type_mask,
118 bool include_inlines, bool append,
119 SymbolContextList &sc_list) {
120 if (!append)
121 sc_list.Clear();
122 return 0;
Greg Clayton99558cc42015-08-24 23:46:31 +0000123}
124
Kate Stoneb9c1b512016-09-06 20:57:50 +0000125uint32_t SymbolFile::FindFunctions(const RegularExpression &regex,
126 bool include_inlines, bool append,
127 SymbolContextList &sc_list) {
128 if (!append)
129 sc_list.Clear();
130 return 0;
Greg Clayton99558cc42015-08-24 23:46:31 +0000131}
132
Kate Stoneb9c1b512016-09-06 20:57:50 +0000133void SymbolFile::GetMangledNamesForFunction(
134 const std::string &scope_qualified_name,
135 std::vector<ConstString> &mangled_names) {
136 return;
Siva Chandra9293fc42016-01-07 23:32:34 +0000137}
138
Kate Stoneb9c1b512016-09-06 20:57:50 +0000139uint32_t SymbolFile::FindTypes(
140 const SymbolContext &sc, const ConstString &name,
141 const CompilerDeclContext *parent_decl_ctx, bool append,
142 uint32_t max_matches,
143 llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
144 TypeMap &types) {
145 if (!append)
146 types.Clear();
147 return 0;
Greg Clayton99558cc42015-08-24 23:46:31 +0000148}
149
Kate Stoneb9c1b512016-09-06 20:57:50 +0000150size_t SymbolFile::FindTypes(const std::vector<CompilerContext> &context,
151 bool append, TypeMap &types) {
152 if (!append)
153 types.Clear();
154 return 0;
Greg Claytone6b36cd2015-12-08 01:02:08 +0000155}