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 DebugMaps of the input binary.
/// The binary contains multiple maps in case it is a universal
/// or isn't of a supported type.
ErrorOr<std::vector<std::unique_ptr<DebugMap>>> parse();
+ /// Walk the symbol table and dump it.
+ bool dumpStab();
+
private:
std::string BinaryPath;
+ SmallVector<StringRef, 1> Archs;
std::string PathPrefix;
/// Owns the MemoryBuffer for the main binary.
handleStabSymbolTableEntry(STE.n_strx, STE.n_type, STE.n_sect, STE.n_desc,
STE.n_value);
}
+
+ /// Dump the symbol table output header.
+ void dumpSymTabHeader(raw_ostream &OS, StringRef Arch);
+
+ /// Dump the contents of nlist entries.
+ void dumpSymTabEntry(raw_ostream &OS, uint64_t Index, uint32_t StringIndex,
+ uint8_t Type, uint8_t SectionIndex, uint16_t Flags,
+ uint64_t Value);
+
+ template <typename STEType>
+ void dumpSymTabEntry(raw_ostream &OS, uint64_t Index, const STEType &STE) {
+ dumpSymTabEntry(OS, Index, STE.n_strx, STE.n_type, STE.n_sect, STE.n_desc,
+ STE.n_value);
+ }
+ void dumpOneBinaryStab(const MachOObjectFile &MainBinary,
+ StringRef BinaryPath);
};
static void Warning(const Twine &Msg) { errs() << "warning: " + Msg + "\n"; }
-}
+} // anonymous namespace
/// Reset the parser state coresponding to the current object
/// file. This is to be called after an object file is finished
loadCurrentObjectFileSymbols(*ErrOrAchObj);
}
+static std::string getArchName(const object::MachOObjectFile &Obj) {
+ Triple ThumbTriple;
+ Triple T = Obj.getArch(nullptr, &ThumbTriple);
+ return T.getArchName();
+}
+
std::unique_ptr<DebugMap>
MachODebugMapParser::parseOneBinary(const MachOObjectFile &MainBinary,
StringRef BinaryPath) {
loadMainBinarySymbols(MainBinary);
- Result = make_unique<DebugMap>(BinaryHolder::getTriple(MainBinary));
+ Result =
+ make_unique<DebugMap>(BinaryHolder::getTriple(MainBinary), BinaryPath);
MainBinaryStrings = MainBinary.getStringTableData();
for (const SymbolRef &Symbol : MainBinary.symbols()) {
const DataRefImpl &DRI = Symbol.getRawDataRefImpl();
return std::move(Result);
}
+// Table that maps Darwin's Mach-O stab constants to strings to allow printing.
+// llvm-nm has very similar code, the strings used here are however slightly
+// different and part of the interface of dsymutil (some project's build-systems
+// parse the ouptut of dsymutil -s), thus they shouldn't be changed.
+struct DarwinStabName {
+ uint8_t NType;
+ const char *Name;
+};
+
+static const struct DarwinStabName DarwinStabNames[] = {
+ {MachO::N_GSYM, "N_GSYM"}, {MachO::N_FNAME, "N_FNAME"},
+ {MachO::N_FUN, "N_FUN"}, {MachO::N_STSYM, "N_STSYM"},
+ {MachO::N_LCSYM, "N_LCSYM"}, {MachO::N_BNSYM, "N_BNSYM"},
+ {MachO::N_PC, "N_PC"}, {MachO::N_AST, "N_AST"},
+ {MachO::N_OPT, "N_OPT"}, {MachO::N_RSYM, "N_RSYM"},
+ {MachO::N_SLINE, "N_SLINE"}, {MachO::N_ENSYM, "N_ENSYM"},
+ {MachO::N_SSYM, "N_SSYM"}, {MachO::N_SO, "N_SO"},
+ {MachO::N_OSO, "N_OSO"}, {MachO::N_LSYM, "N_LSYM"},
+ {MachO::N_BINCL, "N_BINCL"}, {MachO::N_SOL, "N_SOL"},
+ {MachO::N_PARAMS, "N_PARAM"}, {MachO::N_VERSION, "N_VERS"},
+ {MachO::N_OLEVEL, "N_OLEV"}, {MachO::N_PSYM, "N_PSYM"},
+ {MachO::N_EINCL, "N_EINCL"}, {MachO::N_ENTRY, "N_ENTRY"},
+ {MachO::N_LBRAC, "N_LBRAC"}, {MachO::N_EXCL, "N_EXCL"},
+ {MachO::N_RBRAC, "N_RBRAC"}, {MachO::N_BCOMM, "N_BCOMM"},
+ {MachO::N_ECOMM, "N_ECOMM"}, {MachO::N_ECOML, "N_ECOML"},
+ {MachO::N_LENG, "N_LENG"}, {0, nullptr}};
+
+static const char *getDarwinStabString(uint8_t NType) {
+ for (unsigned i = 0; DarwinStabNames[i].Name; i++) {
+ if (DarwinStabNames[i].NType == NType)
+ return DarwinStabNames[i].Name;
+ }
+ return nullptr;
+}
+
+void MachODebugMapParser::dumpSymTabHeader(raw_ostream &OS, StringRef Arch) {
+ OS << "-----------------------------------"
+ "-----------------------------------\n";
+ OS << "Symbol table for: '" << BinaryPath << "' (" << Arch.data() << ")\n";
+ OS << "-----------------------------------"
+ "-----------------------------------\n";
+ OS << "Index n_strx n_type n_sect n_desc n_value\n";
+ OS << "======== -------- ------------------ ------ ------ ----------------\n";
+}
+
+void MachODebugMapParser::dumpSymTabEntry(raw_ostream &OS, uint64_t Index,
+ uint32_t StringIndex, uint8_t Type,
+ uint8_t SectionIndex, uint16_t Flags,
+ uint64_t Value) {
+ // Index
+ OS << '[' << format_decimal(Index, 6) << "] "
+ // n_strx
+ << format_hex_no_prefix(StringIndex, 8) << ' '
+ // n_type...
+ << format_hex_no_prefix(Type, 2) << " (";
+
+ if (Type & MachO::N_STAB)
+ OS << left_justify(getDarwinStabString(Type), 13);
+ else {
+ if (Type & MachO::N_PEXT)
+ OS << "PEXT ";
+ else
+ OS << " ";
+ switch (Type & MachO::N_TYPE) {
+ case MachO::N_UNDF: // 0x0 undefined, n_sect == NO_SECT
+ OS << "UNDF";
+ break;
+ case MachO::N_ABS: // 0x2 absolute, n_sect == NO_SECT
+ OS << "ABS ";
+ break;
+ case MachO::N_SECT: // 0xe defined in section number n_sect
+ OS << "SECT";
+ break;
+ case MachO::N_PBUD: // 0xc prebound undefined (defined in a dylib)
+ OS << "PBUD";
+ break;
+ case MachO::N_INDR: // 0xa indirect
+ OS << "INDR";
+ break;
+ default:
+ OS << format_hex_no_prefix(Type, 2) << " ";
+ break;
+ }
+ if (Type & MachO::N_EXT)
+ OS << " EXT";
+ else
+ OS << " ";
+ }
+
+ OS << ") "
+ // n_sect
+ << format_hex_no_prefix(SectionIndex, 2) << " "
+ // n_desc
+ << format_hex_no_prefix(Flags, 4) << " "
+ // n_value
+ << format_hex_no_prefix(Value, 16);
+
+ const char *Name = &MainBinaryStrings.data()[StringIndex];
+ if (Name && Name[0])
+ OS << " '" << Name << "'";
+
+ OS << "\n";
+}
+
+void MachODebugMapParser::dumpOneBinaryStab(const MachOObjectFile &MainBinary,
+ StringRef BinaryPath) {
+ loadMainBinarySymbols(MainBinary);
+ MainBinaryStrings = MainBinary.getStringTableData();
+ raw_ostream &OS(llvm::outs());
+
+ dumpSymTabHeader(OS, getArchName(MainBinary));
+ uint64_t Idx = 0;
+ for (const SymbolRef &Symbol : MainBinary.symbols()) {
+ const DataRefImpl &DRI = Symbol.getRawDataRefImpl();
+ if (MainBinary.is64Bit())
+ dumpSymTabEntry(OS, Idx, MainBinary.getSymbol64TableEntry(DRI));
+ else
+ dumpSymTabEntry(OS, Idx, MainBinary.getSymbolTableEntry(DRI));
+ Idx++;
+ }
+
+ OS << "\n\n";
+ resetParserState();
+}
+
+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();
+}
+
+bool MachODebugMapParser::dumpStab() {
+ auto MainBinOrError =
+ MainBinaryHolder.GetFilesAs<MachOObjectFile>(BinaryPath);
+ if (auto Error = MainBinOrError.getError()) {
+ llvm::errs() << "Cannot get '" << BinaryPath
+ << "' as MachO file: " << Error.message() << "\n";
+ return false;
+ }
+
+ Triple T;
+ for (const auto *Binary : *MainBinOrError)
+ if (shouldLinkArch(Archs, Binary->getArch(nullptr, &T).getArchName()))
+ dumpOneBinaryStab(*Binary, BinaryPath);
+
+ return true;
+}
+
/// 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.
return Error;
std::vector<std::unique_ptr<DebugMap>> Results;
+ Triple T;
for (const auto *Binary : *MainBinOrError)
- Results.push_back(parseOneBinary(*Binary, BinaryPath));
+ if (shouldLinkArch(Archs, Binary->getArch(nullptr, &T).getArchName()))
+ Results.push_back(parseOneBinary(*Binary, BinaryPath));
return std::move(Results);
}
// 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.getFlags() & SymbolRef::SF_Global) || Sym.getSection(Section) ||
- Section == MainBinary.section_end() || Section->isText())
+ 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();
namespace llvm {
namespace dsymutil {
llvm::ErrorOr<std::vector<std::unique_ptr<DebugMap>>>
-parseDebugMap(StringRef InputFile, StringRef PrependPath, bool Verbose,
- bool InputIsYAML) {
+parseDebugMap(StringRef InputFile, ArrayRef<std::string> Archs,
+ StringRef PrependPath, bool Verbose, bool InputIsYAML) {
if (!InputIsYAML) {
- MachODebugMapParser Parser(InputFile, PrependPath, Verbose);
+ MachODebugMapParser Parser(InputFile, Archs, PrependPath, Verbose);
return Parser.parse();
} else {
return DebugMap::parseYAMLDebugMap(InputFile, PrependPath, Verbose);
}
}
+
+bool dumpStab(StringRef InputFile, ArrayRef<std::string> Archs,
+ StringRef PrependPath) {
+ MachODebugMapParser Parser(InputFile, Archs, PrependPath, false);
+ return Parser.dumpStab();
}
-}
+} // namespace dsymutil
+} // namespace llvm
projects / oota-llvm.git / blobdiff