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//===- tools/dsymutil/DebugMap.cpp - Generic debug map representation -----===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "DebugMap.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/iterator_range.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
namespace llvm {
namespace dsymutil {
using namespace llvm::object;
DebugMapObject::DebugMapObject(StringRef ObjectFilename)
: Filename(ObjectFilename) {}
bool DebugMapObject::addSymbol(StringRef Name, uint64_t ObjectAddress,
uint64_t LinkedAddress) {
auto InsertResult = Symbols.insert(
std::make_pair(Name, SymbolMapping(ObjectAddress, LinkedAddress)));
if (InsertResult.second)
AddressToMapping[ObjectAddress] = &*InsertResult.first;
return InsertResult.second;
}
void DebugMapObject::print(raw_ostream &OS) const {
OS << getObjectFilename() << ":\n";
// Sort the symbols in alphabetical order, like llvm-nm (and to get
// deterministic output for testing).
typedef std::pair<StringRef, SymbolMapping> Entry;
std::vector<Entry> Entries;
Entries.reserve(Symbols.getNumItems());
for (const auto &Sym : make_range(Symbols.begin(), Symbols.end()))
Entries.push_back(std::make_pair(Sym.getKey(), Sym.getValue()));
std::sort(
Entries.begin(), Entries.end(),
[](const Entry &LHS, const Entry &RHS) { return LHS.first < RHS.first; });
for (const auto &Sym : Entries) {
OS << format("\t%016" PRIx64 " => %016" PRIx64 "\t%s\n",
Sym.second.ObjectAddress, Sym.second.BinaryAddress,
Sym.first.data());
}
OS << '\n';
}
#ifndef NDEBUG
void DebugMapObject::dump() const { print(errs()); }
#endif
DebugMapObject &DebugMap::addDebugMapObject(StringRef ObjectFilePath) {
Objects.emplace_back(new DebugMapObject(ObjectFilePath));
return *Objects.back();
}
const DebugMapObject::DebugMapEntry *
DebugMapObject::lookupSymbol(StringRef SymbolName) const {
StringMap<SymbolMapping>::const_iterator Sym = Symbols.find(SymbolName);
if (Sym == Symbols.end())
return nullptr;
return &*Sym;
}
const DebugMapObject::DebugMapEntry *
DebugMapObject::lookupObjectAddress(uint64_t Address) const {
auto Mapping = AddressToMapping.find(Address);
if (Mapping == AddressToMapping.end())
return nullptr;
return Mapping->getSecond();
}
void DebugMap::print(raw_ostream &OS) const {
OS << "DEBUG MAP: " << BinaryTriple.getTriple()
<< "\n\tobject addr => executable addr\tsymbol name\n";
for (const auto &Obj : objects())
Obj->print(OS);
OS << "END DEBUG MAP\n";
}
#ifndef NDEBUG
void DebugMap::dump() const { print(errs()); }
#endif
}
}
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