class MachODebugMapParser {
public:
- MachODebugMapParser(StringRef BinaryPath, StringRef PathPrefix = "",
- bool Verbose = false)
- : BinaryPath(BinaryPath), PathPrefix(PathPrefix),
- MainBinaryHolder(Verbose), CurrentObjectHolder(Verbose),
- CurrentDebugMapObject(nullptr) {}
+ MachODebugMapParser(StringRef BinaryPath, ArrayRef<std::string> Archs,
+ StringRef PathPrefix = "", bool Verbose = false)
+ : BinaryPath(BinaryPath), Archs(Archs.begin(), Archs.end()),
+ PathPrefix(PathPrefix), MainBinaryHolder(Verbose),
+ CurrentObjectHolder(Verbose), CurrentDebugMapObject(nullptr) {}
- /// \brief Parses and returns the DebugMap of the input binary.
+ /// \brief Parses and returns the DebugMaps of the input binary.
+ /// The binary contains multiple maps in case it is a universal
+ /// binary.
/// \returns an error in case the provided BinaryPath doesn't exist
/// or isn't of a supported type.
- ErrorOr<std::unique_ptr<DebugMap>> parse();
+ ErrorOr<std::vector<std::unique_ptr<DebugMap>>> parse();
private:
std::string BinaryPath;
+ SmallVector<StringRef, 1> Archs;
std::string PathPrefix;
/// Owns the MemoryBuffer for the main binary.
const char *CurrentFunctionName;
uint64_t CurrentFunctionAddress;
- void switchToNewDebugMapObject(StringRef Filename);
+ std::unique_ptr<DebugMap> parseOneBinary(const MachOObjectFile &MainBinary,
+ StringRef BinaryPath);
+
+ void switchToNewDebugMapObject(StringRef Filename, sys::TimeValue Timestamp);
void resetParserState();
uint64_t getMainBinarySymbolAddress(StringRef Name);
- void loadMainBinarySymbols();
- void loadCurrentObjectFileSymbols();
+ void loadMainBinarySymbols(const MachOObjectFile &MainBinary);
+ void loadCurrentObjectFileSymbols(const object::MachOObjectFile &Obj);
void handleStabSymbolTableEntry(uint32_t StringIndex, uint8_t Type,
uint8_t SectionIndex, uint16_t Flags,
uint64_t Value);
/// Create a new DebugMapObject. This function resets the state of the
/// parser that was referring to the last object file and sets
/// everything up to add symbols to the new one.
-void MachODebugMapParser::switchToNewDebugMapObject(StringRef Filename) {
+void MachODebugMapParser::switchToNewDebugMapObject(StringRef Filename,
+ sys::TimeValue Timestamp) {
resetParserState();
SmallString<80> Path(PathPrefix);
sys::path::append(Path, Filename);
- auto MachOOrError = CurrentObjectHolder.GetFileAs<MachOObjectFile>(Path);
+ auto MachOOrError =
+ CurrentObjectHolder.GetFilesAs<MachOObjectFile>(Path, Timestamp);
if (auto Error = MachOOrError.getError()) {
Warning(Twine("cannot open debug object \"") + Path.str() + "\": " +
Error.message() + "\n");
return;
}
- loadCurrentObjectFileSymbols();
- CurrentDebugMapObject = &Result->addDebugMapObject(Path);
-}
+ auto ErrOrAchObj =
+ CurrentObjectHolder.GetAs<MachOObjectFile>(Result->getTriple());
+ if (auto Err = ErrOrAchObj.getError()) {
+ return Warning(Twine("cannot open debug object \"") + Path.str() + "\": " +
+ Err.message() + "\n");
+ }
-static Triple getTriple(const object::MachOObjectFile &Obj) {
- Triple TheTriple("unknown-unknown-unknown");
- TheTriple.setArch(Triple::ArchType(Obj.getArch()));
- TheTriple.setObjectFormat(Triple::MachO);
- return TheTriple;
+ CurrentDebugMapObject = &Result->addDebugMapObject(Path, Timestamp);
+ loadCurrentObjectFileSymbols(*ErrOrAchObj);
}
-/// This main parsing routine tries to open the main binary and if
-/// successful iterates over the STAB entries. The real parsing is
-/// done in handleStabSymbolTableEntry.
-ErrorOr<std::unique_ptr<DebugMap>> MachODebugMapParser::parse() {
- auto MainBinOrError = MainBinaryHolder.GetFileAs<MachOObjectFile>(BinaryPath);
- if (auto Error = MainBinOrError.getError())
- return Error;
-
- const MachOObjectFile &MainBinary = *MainBinOrError;
- loadMainBinarySymbols();
- Result = make_unique<DebugMap>(getTriple(MainBinary));
+std::unique_ptr<DebugMap>
+MachODebugMapParser::parseOneBinary(const MachOObjectFile &MainBinary,
+ StringRef BinaryPath) {
+ loadMainBinarySymbols(MainBinary);
+ Result = make_unique<DebugMap>(BinaryHolder::getTriple(MainBinary));
MainBinaryStrings = MainBinary.getStringTableData();
for (const SymbolRef &Symbol : MainBinary.symbols()) {
const DataRefImpl &DRI = Symbol.getRawDataRefImpl();
return std::move(Result);
}
+static bool shouldLinkArch(SmallVectorImpl<StringRef> &Archs, StringRef Arch) {
+ if (Archs.empty() ||
+ std::find(Archs.begin(), Archs.end(), "all") != Archs.end() ||
+ std::find(Archs.begin(), Archs.end(), "*") != Archs.end())
+ return true;
+
+ if (Arch.startswith("arm") && Arch != "arm64" &&
+ std::find(Archs.begin(), Archs.end(), "arm") != Archs.end())
+ return true;
+
+ return std::find(Archs.begin(), Archs.end(), Arch) != Archs.end();
+}
+
+/// This main parsing routine tries to open the main binary and if
+/// successful iterates over the STAB entries. The real parsing is
+/// done in handleStabSymbolTableEntry.
+ErrorOr<std::vector<std::unique_ptr<DebugMap>>> MachODebugMapParser::parse() {
+ auto MainBinOrError =
+ MainBinaryHolder.GetFilesAs<MachOObjectFile>(BinaryPath);
+ if (auto Error = MainBinOrError.getError())
+ return Error;
+
+ std::vector<std::unique_ptr<DebugMap>> Results;
+ Triple T;
+ for (const auto *Binary : *MainBinOrError)
+ if (shouldLinkArch(Archs, Binary->getArch(nullptr, &T).getArchName()))
+ Results.push_back(parseOneBinary(*Binary, BinaryPath));
+
+ return std::move(Results);
+}
+
/// Interpret the STAB entries to fill the DebugMap.
void MachODebugMapParser::handleStabSymbolTableEntry(uint32_t StringIndex,
uint8_t Type,
const char *Name = &MainBinaryStrings.data()[StringIndex];
// An N_OSO entry represents the start of a new object file description.
- if (Type == MachO::N_OSO)
- return switchToNewDebugMapObject(Name);
+ if (Type == MachO::N_OSO) {
+ sys::TimeValue Timestamp;
+ Timestamp.fromEpochTime(Value);
+ return switchToNewDebugMapObject(Name, Timestamp);
+ }
// If the last N_OSO object file wasn't found,
// CurrentDebugMapObject will be null. Do not update anything
// symbol table to find its address as it might not be in the
// debug map (for common symbols).
Value = getMainBinarySymbolAddress(Name);
- if (Value == UnknownAddressOrSize)
- return;
break;
case MachO::N_FUN:
// Functions are scopes in STABS. They have an end marker that
}
/// Load the current object file symbols into CurrentObjectAddresses.
-void MachODebugMapParser::loadCurrentObjectFileSymbols() {
+void MachODebugMapParser::loadCurrentObjectFileSymbols(
+ const object::MachOObjectFile &Obj) {
CurrentObjectAddresses.clear();
- for (auto Sym : CurrentObjectHolder.Get().symbols()) {
- StringRef Name;
- uint64_t Addr;
- if (Sym.getAddress(Addr) || Addr == UnknownAddressOrSize ||
- Sym.getName(Name))
+ for (auto Sym : Obj.symbols()) {
+ uint64_t Addr = Sym.getValue();
+ ErrorOr<StringRef> Name = Sym.getName();
+ if (!Name)
continue;
- CurrentObjectAddresses[Name] = Addr;
+ CurrentObjectAddresses[*Name] = Addr;
}
}
uint64_t MachODebugMapParser::getMainBinarySymbolAddress(StringRef Name) {
auto Sym = MainBinarySymbolAddresses.find(Name);
if (Sym == MainBinarySymbolAddresses.end())
- return UnknownAddressOrSize;
+ return 0;
return Sym->second;
}
/// Load the interesting main binary symbols' addresses into
/// MainBinarySymbolAddresses.
-void MachODebugMapParser::loadMainBinarySymbols() {
- const MachOObjectFile &MainBinary = MainBinaryHolder.GetAs<MachOObjectFile>();
+void MachODebugMapParser::loadMainBinarySymbols(
+ const MachOObjectFile &MainBinary) {
section_iterator Section = MainBinary.section_end();
+ MainBinarySymbolAddresses.clear();
for (const auto &Sym : MainBinary.symbols()) {
- SymbolRef::Type Type;
+ SymbolRef::Type Type = Sym.getType();
// Skip undefined and STAB entries.
- if (Sym.getType(Type) || (Type & SymbolRef::ST_Debug) ||
- (Type & SymbolRef::ST_Unknown))
+ if ((Type & SymbolRef::ST_Debug) || (Type & SymbolRef::ST_Unknown))
continue;
- StringRef Name;
- uint64_t Addr;
// The only symbols of interest are the global variables. These
// are the only ones that need to be queried because the address
// of common data won't be described in the debug map. All other
// addresses should be fetched for the debug map.
- if (Sym.getAddress(Addr) || Addr == UnknownAddressOrSize ||
- !(Sym.getFlags() & SymbolRef::SF_Global) || Sym.getSection(Section) ||
- Section->isText() || Sym.getName(Name) || Name.size() == 0 ||
- Name[0] == '\0')
+ if (!(Sym.getFlags() & SymbolRef::SF_Global))
+ continue;
+ ErrorOr<section_iterator> SectionOrErr = Sym.getSection();
+ if (!SectionOrErr)
+ continue;
+ Section = *SectionOrErr;
+ if (Section == MainBinary.section_end() || Section->isText())
+ continue;
+ uint64_t Addr = Sym.getValue();
+ ErrorOr<StringRef> NameOrErr = Sym.getName();
+ if (!NameOrErr)
+ continue;
+ StringRef Name = *NameOrErr;
+ if (Name.size() == 0 || Name[0] == '\0')
continue;
MainBinarySymbolAddresses[Name] = Addr;
}
namespace llvm {
namespace dsymutil {
-llvm::ErrorOr<std::unique_ptr<DebugMap>>
-parseDebugMap(StringRef InputFile, StringRef PrependPath, bool Verbose) {
- MachODebugMapParser Parser(InputFile, PrependPath, Verbose);
- return Parser.parse();
+llvm::ErrorOr<std::vector<std::unique_ptr<DebugMap>>>
+parseDebugMap(StringRef InputFile, ArrayRef<std::string> Archs,
+ StringRef PrependPath, bool Verbose, bool InputIsYAML) {
+ if (!InputIsYAML) {
+ MachODebugMapParser Parser(InputFile, Archs, PrependPath, Verbose);
+ return Parser.parse();
+ } else {
+ return DebugMap::parseYAMLDebugMap(InputFile, PrependPath, Verbose);
+ }
}
}
}
projects / oota-llvm.git / blobdiff