llvm/lld/COFF/LLDMapFile.cpp

//===- LLDMapFile.cpp -----------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements the /lldmap option. It shows lists in order and
// hierarchically the output sections, input sections, input files and
// symbol:
//
//   Address  Size     Align Out     File    Symbol
//   00201000 00000015     4 .text
//   00201000 0000000e     4         test.o:(.text)
//   0020100e 00000000     0                 local
//   00201005 00000000     0                 f(int)
//
//===----------------------------------------------------------------------===//

#include "LLDMapFile.h"
#include "COFFLinkerContext.h"
#include "SymbolTable.h"
#include "Symbols.h"
#include "Writer.h"
#include "lld/Common/ErrorHandler.h"
#include "llvm/Support/Parallel.h"
#include "llvm/Support/TimeProfiler.h"
#include "llvm/Support/raw_ostream.h"

usingnamespacellvm;
usingnamespacellvm::object;
usingnamespacelld;
usingnamespacelld::coff;

SymbolMapTy;

static constexpr char indent8[] = …;          // 8 spaces
static constexpr char indent16[] = …; // 16 spaces

// Print out the first three columns of a line.
static void writeHeader(raw_ostream &os, uint64_t addr, uint64_t size,
                        uint64_t align) { … }

// Returns a list of all symbols that we want to print out.
static std::vector<DefinedRegular *> getSymbols(const COFFLinkerContext &ctx) { … }

// Returns a map from sections to their symbols.
static SymbolMapTy getSectionSyms(ArrayRef<DefinedRegular *> syms) { … }

// Construct a map from symbols to their stringified representations.
static DenseMap<DefinedRegular *, std::string>
getSymbolStrings(const COFFLinkerContext &ctx,
                 ArrayRef<DefinedRegular *> syms) { … }

void lld::coff::writeLLDMapFile(const COFFLinkerContext &ctx) { … }