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1 //===- PrettyCompilandDumper.cpp - llvm-pdbutil compiland dumper -*- 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 #include "PrettyCompilandDumper.h"
10 
11 #include "LinePrinter.h"
12 #include "PrettyFunctionDumper.h"
13 #include "llvm-pdbutil.h"
14 
15 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
16 #include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
17 #include "llvm/DebugInfo/PDB/IPDBSession.h"
18 #include "llvm/DebugInfo/PDB/IPDBSourceFile.h"
19 #include "llvm/DebugInfo/PDB/PDBExtras.h"
20 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
21 #include "llvm/DebugInfo/PDB/PDBSymbolCompiland.h"
22 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
23 #include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
24 #include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugEnd.h"
25 #include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugStart.h"
26 #include "llvm/DebugInfo/PDB/PDBSymbolLabel.h"
27 #include "llvm/DebugInfo/PDB/PDBSymbolThunk.h"
28 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
29 #include "llvm/DebugInfo/PDB/PDBSymbolUnknown.h"
30 #include "llvm/DebugInfo/PDB/PDBSymbolUsingNamespace.h"
31 #include "llvm/Support/Format.h"
32 #include "llvm/Support/Path.h"
33 #include "llvm/Support/raw_ostream.h"
34 
35 #include <utility>
36 
37 using namespace llvm;
38 using namespace llvm::pdb;
39 
CompilandDumper(LinePrinter & P)40 CompilandDumper::CompilandDumper(LinePrinter &P)
41     : PDBSymDumper(true), Printer(P) {}
42 
dump(const PDBSymbolCompilandDetails & Symbol)43 void CompilandDumper::dump(const PDBSymbolCompilandDetails &Symbol) {}
44 
dump(const PDBSymbolCompilandEnv & Symbol)45 void CompilandDumper::dump(const PDBSymbolCompilandEnv &Symbol) {}
46 
start(const PDBSymbolCompiland & Symbol,CompilandDumpFlags opts)47 void CompilandDumper::start(const PDBSymbolCompiland &Symbol,
48                             CompilandDumpFlags opts) {
49   std::string FullName = Symbol.getName();
50   if (Printer.IsCompilandExcluded(FullName))
51     return;
52 
53   Printer.NewLine();
54   WithColor(Printer, PDB_ColorItem::Path).get() << FullName;
55 
56   if (opts & Flags::Lines) {
57     const IPDBSession &Session = Symbol.getSession();
58     if (auto Files = Session.getSourceFilesForCompiland(Symbol)) {
59       Printer.Indent();
60       while (auto File = Files->getNext()) {
61         Printer.NewLine();
62         WithColor(Printer, PDB_ColorItem::Path).get() << File->getFileName();
63         if (File->getChecksumType() != PDB_Checksum::None) {
64           auto ChecksumType = File->getChecksumType();
65           auto ChecksumHexString = toHex(File->getChecksum());
66           WithColor(Printer, PDB_ColorItem::Comment).get()
67               << " (" << ChecksumType << ": " << ChecksumHexString << ")";
68         }
69 
70         auto Lines = Session.findLineNumbers(Symbol, *File);
71         if (!Lines)
72           continue;
73 
74         Printer.Indent();
75         while (auto Line = Lines->getNext()) {
76           Printer.NewLine();
77           uint32_t LineStart = Line->getLineNumber();
78           uint32_t LineEnd = Line->getLineNumberEnd();
79 
80           Printer << "Line ";
81           PDB_ColorItem StatementColor = Line->isStatement()
82             ? PDB_ColorItem::Keyword
83             : PDB_ColorItem::LiteralValue;
84           WithColor(Printer, StatementColor).get() << LineStart;
85           if (LineStart != LineEnd)
86             WithColor(Printer, StatementColor).get() << " - " << LineEnd;
87 
88           uint32_t ColumnStart = Line->getColumnNumber();
89           uint32_t ColumnEnd = Line->getColumnNumberEnd();
90           if (ColumnStart != 0 || ColumnEnd != 0) {
91             Printer << ", Column: ";
92             WithColor(Printer, StatementColor).get() << ColumnStart;
93             if (ColumnEnd != ColumnStart)
94               WithColor(Printer, StatementColor).get() << " - " << ColumnEnd;
95           }
96 
97           Printer << ", Address: ";
98           if (Line->getLength() > 0) {
99             uint64_t AddrStart = Line->getVirtualAddress();
100             uint64_t AddrEnd = AddrStart + Line->getLength() - 1;
101             WithColor(Printer, PDB_ColorItem::Address).get()
102               << "[" << format_hex(AddrStart, 10) << " - "
103               << format_hex(AddrEnd, 10) << "]";
104             Printer << " (" << Line->getLength() << " bytes)";
105           } else {
106             uint64_t AddrStart = Line->getVirtualAddress();
107             WithColor(Printer, PDB_ColorItem::Address).get()
108               << "[" << format_hex(AddrStart, 10) << "] ";
109             Printer << "(0 bytes)";
110           }
111         }
112         Printer.Unindent();
113       }
114       Printer.Unindent();
115     }
116   }
117 
118   if (opts & Flags::Children) {
119     if (auto ChildrenEnum = Symbol.findAllChildren()) {
120       Printer.Indent();
121       while (auto Child = ChildrenEnum->getNext())
122         Child->dump(*this);
123       Printer.Unindent();
124     }
125   }
126 }
127 
dump(const PDBSymbolData & Symbol)128 void CompilandDumper::dump(const PDBSymbolData &Symbol) {
129   if (!shouldDumpSymLevel(opts::pretty::SymLevel::Data))
130     return;
131   if (Printer.IsSymbolExcluded(Symbol.getName()))
132     return;
133 
134   Printer.NewLine();
135 
136   switch (auto LocType = Symbol.getLocationType()) {
137   case PDB_LocType::Static:
138     Printer << "data: ";
139     WithColor(Printer, PDB_ColorItem::Address).get()
140         << "[" << format_hex(Symbol.getVirtualAddress(), 10) << "]";
141 
142     WithColor(Printer, PDB_ColorItem::Comment).get()
143         << " [sizeof = " << getTypeLength(Symbol) << "]";
144 
145     break;
146   case PDB_LocType::Constant:
147     Printer << "constant: ";
148     WithColor(Printer, PDB_ColorItem::LiteralValue).get()
149         << "[" << Symbol.getValue() << "]";
150     WithColor(Printer, PDB_ColorItem::Comment).get()
151         << " [sizeof = " << getTypeLength(Symbol) << "]";
152     break;
153   default:
154     Printer << "data(unexpected type=" << LocType << ")";
155   }
156 
157   Printer << " ";
158   WithColor(Printer, PDB_ColorItem::Identifier).get() << Symbol.getName();
159 }
160 
dump(const PDBSymbolFunc & Symbol)161 void CompilandDumper::dump(const PDBSymbolFunc &Symbol) {
162   if (!shouldDumpSymLevel(opts::pretty::SymLevel::Functions))
163     return;
164   if (Symbol.getLength() == 0)
165     return;
166   if (Printer.IsSymbolExcluded(Symbol.getName()))
167     return;
168 
169   Printer.NewLine();
170   FunctionDumper Dumper(Printer);
171   Dumper.start(Symbol, FunctionDumper::PointerType::None);
172 }
173 
dump(const PDBSymbolLabel & Symbol)174 void CompilandDumper::dump(const PDBSymbolLabel &Symbol) {
175   if (Printer.IsSymbolExcluded(Symbol.getName()))
176     return;
177 
178   Printer.NewLine();
179   Printer << "label ";
180   WithColor(Printer, PDB_ColorItem::Address).get()
181       << "[" << format_hex(Symbol.getVirtualAddress(), 10) << "] ";
182   WithColor(Printer, PDB_ColorItem::Identifier).get() << Symbol.getName();
183 }
184 
dump(const PDBSymbolThunk & Symbol)185 void CompilandDumper::dump(const PDBSymbolThunk &Symbol) {
186   if (!shouldDumpSymLevel(opts::pretty::SymLevel::Thunks))
187     return;
188   if (Printer.IsSymbolExcluded(Symbol.getName()))
189     return;
190 
191   Printer.NewLine();
192   Printer << "thunk ";
193   codeview::ThunkOrdinal Ordinal = Symbol.getThunkOrdinal();
194   uint64_t VA = Symbol.getVirtualAddress();
195   if (Ordinal == codeview::ThunkOrdinal::TrampIncremental) {
196     uint64_t Target = Symbol.getTargetVirtualAddress();
197     WithColor(Printer, PDB_ColorItem::Address).get() << format_hex(VA, 10);
198     Printer << " -> ";
199     WithColor(Printer, PDB_ColorItem::Address).get() << format_hex(Target, 10);
200   } else {
201     WithColor(Printer, PDB_ColorItem::Address).get()
202         << "[" << format_hex(VA, 10) << " - "
203         << format_hex(VA + Symbol.getLength(), 10) << "]";
204   }
205   Printer << " (";
206   WithColor(Printer, PDB_ColorItem::Register).get() << Ordinal;
207   Printer << ") ";
208   std::string Name = Symbol.getName();
209   if (!Name.empty())
210     WithColor(Printer, PDB_ColorItem::Identifier).get() << Name;
211 }
212 
dump(const PDBSymbolTypeTypedef & Symbol)213 void CompilandDumper::dump(const PDBSymbolTypeTypedef &Symbol) {}
214 
dump(const PDBSymbolUnknown & Symbol)215 void CompilandDumper::dump(const PDBSymbolUnknown &Symbol) {
216   Printer.NewLine();
217   Printer << "unknown (" << Symbol.getSymTag() << ")";
218 }
219 
dump(const PDBSymbolUsingNamespace & Symbol)220 void CompilandDumper::dump(const PDBSymbolUsingNamespace &Symbol) {
221   if (Printer.IsSymbolExcluded(Symbol.getName()))
222     return;
223 
224   Printer.NewLine();
225   Printer << "using namespace ";
226   std::string Name = Symbol.getName();
227   WithColor(Printer, PDB_ColorItem::Identifier).get() << Name;
228 }
229