115 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			115 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			C++
		
	
	
	
| //===- PrettyClassDefinitionDumper.cpp --------------------------*- C++ -*-===//
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| //
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| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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| // See https://llvm.org/LICENSE.txt for license information.
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| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| #include "PrettyClassDefinitionDumper.h"
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| 
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| #include "LinePrinter.h"
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| #include "PrettyClassLayoutGraphicalDumper.h"
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| #include "llvm-pdbutil.h"
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| 
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| #include "llvm/ADT/APFloat.h"
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| #include "llvm/ADT/SmallString.h"
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| #include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"
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| #include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
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| #include "llvm/DebugInfo/PDB/UDTLayout.h"
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| 
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| #include "llvm/Support/Format.h"
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| 
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| using namespace llvm;
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| using namespace llvm::pdb;
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| 
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| ClassDefinitionDumper::ClassDefinitionDumper(LinePrinter &P)
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|     : PDBSymDumper(true), Printer(P) {}
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| 
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| void ClassDefinitionDumper::start(const PDBSymbolTypeUDT &Class) {
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|   assert(opts::pretty::ClassFormat !=
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|          opts::pretty::ClassDefinitionFormat::None);
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| 
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|   ClassLayout Layout(Class);
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|   start(Layout);
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| }
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| 
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| void ClassDefinitionDumper::start(const ClassLayout &Layout) {
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|   prettyPrintClassIntro(Layout);
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| 
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|   PrettyClassLayoutGraphicalDumper Dumper(Printer, 1, 0);
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|   DumpedAnything |= Dumper.start(Layout);
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| 
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|   prettyPrintClassOutro(Layout);
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| }
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| 
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| void ClassDefinitionDumper::prettyPrintClassIntro(const ClassLayout &Layout) {
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|   DumpedAnything = false;
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|   Printer.NewLine();
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| 
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|   uint32_t Size = Layout.getSize();
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|   const PDBSymbolTypeUDT &Class = Layout.getClass();
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| 
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|   if (Layout.getClass().isConstType())
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|     WithColor(Printer, PDB_ColorItem::Keyword).get() << "const ";
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|   if (Layout.getClass().isVolatileType())
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|     WithColor(Printer, PDB_ColorItem::Keyword).get() << "volatile ";
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|   if (Layout.getClass().isUnalignedType())
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|     WithColor(Printer, PDB_ColorItem::Keyword).get() << "unaligned ";
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| 
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|   WithColor(Printer, PDB_ColorItem::Keyword).get() << Class.getUdtKind() << " ";
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|   WithColor(Printer, PDB_ColorItem::Type).get() << Class.getName();
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|   WithColor(Printer, PDB_ColorItem::Comment).get() << " [sizeof = " << Size
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|                                                    << "]";
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|   uint32_t BaseCount = Layout.bases().size();
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|   if (BaseCount > 0) {
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|     Printer.Indent();
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|     char NextSeparator = ':';
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|     for (auto BC : Layout.bases()) {
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|       const auto &Base = BC->getBase();
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|       if (Base.isIndirectVirtualBaseClass())
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|         continue;
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| 
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|       Printer.NewLine();
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|       Printer << NextSeparator << " ";
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|       WithColor(Printer, PDB_ColorItem::Keyword).get() << Base.getAccess();
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|       if (BC->isVirtualBase())
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|         WithColor(Printer, PDB_ColorItem::Keyword).get() << " virtual";
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| 
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|       WithColor(Printer, PDB_ColorItem::Type).get() << " " << Base.getName();
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|       NextSeparator = ',';
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|     }
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| 
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|     Printer.Unindent();
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|   }
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| 
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|   Printer << " {";
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|   Printer.Indent();
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| }
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| 
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| void ClassDefinitionDumper::prettyPrintClassOutro(const ClassLayout &Layout) {
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|   Printer.Unindent();
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|   if (DumpedAnything)
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|     Printer.NewLine();
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|   Printer << "}";
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|   Printer.NewLine();
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|   if (Layout.deepPaddingSize() > 0) {
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|     APFloat Pct(100.0 * (double)Layout.deepPaddingSize() /
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|                 (double)Layout.getSize());
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|     SmallString<8> PctStr;
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|     Pct.toString(PctStr, 4);
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|     WithColor(Printer, PDB_ColorItem::Padding).get()
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|         << "Total padding " << Layout.deepPaddingSize() << " bytes (" << PctStr
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|         << "% of class size)";
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|     Printer.NewLine();
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|     APFloat Pct2(100.0 * (double)Layout.immediatePadding() /
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|                  (double)Layout.getSize());
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|     PctStr.clear();
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|     Pct2.toString(PctStr, 4);
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|     WithColor(Printer, PDB_ColorItem::Padding).get()
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|         << "Immediate padding " << Layout.immediatePadding() << " bytes ("
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|         << PctStr << "% of class size)";
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|     Printer.NewLine();
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|   }
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| }
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