void LLVMSymbolizer::flush() {
DeleteContainerSeconds(Modules);
- BinaryForPath.clear();
+ ObjectPairForPathArch.clear();
ObjectFileForArch.clear();
}
-static std::string getDarwinDWARFResourceForPath(const std::string &Path) {
- StringRef Basename = sys::path::filename(Path);
- const std::string &DSymDirectory = Path + ".dSYM";
- SmallString<16> ResourceName = StringRef(DSymDirectory);
+// For Path="/path/to/foo" and Basename="foo" assume that debug info is in
+// /path/to/foo.dSYM/Contents/Resources/DWARF/foo.
+// For Path="/path/to/bar.dSYM" and Basename="foo" assume that debug info is in
+// /path/to/bar.dSYM/Contents/Resources/DWARF/foo.
+static
+std::string getDarwinDWARFResourceForPath(
+ const std::string &Path, const std::string &Basename) {
+ SmallString<16> ResourceName = StringRef(Path);
+ if (sys::path::extension(Path) != ".dSYM") {
+ ResourceName += ".dSYM";
+ }
sys::path::append(ResourceName, "Contents", "Resources", "DWARF");
sys::path::append(ResourceName, Basename);
return ResourceName.str();
return false;
}
-static bool getGNUDebuglinkContents(const Binary *Bin, std::string &DebugName,
+static bool getGNUDebuglinkContents(const ObjectFile *Obj, std::string &DebugName,
uint32_t &CRCHash) {
- const ObjectFile *Obj = dyn_cast<ObjectFile>(Bin);
if (!Obj)
return false;
for (const SectionRef &Section : Obj->sections()) {
return false;
}
-LLVMSymbolizer::BinaryPair
-LLVMSymbolizer::getOrCreateBinary(const std::string &Path) {
- const auto &I = BinaryForPath.find(Path);
- if (I != BinaryForPath.end())
+static
+bool darwinDsymMatchesBinary(const MachOObjectFile *DbgObj,
+ const MachOObjectFile *Obj) {
+ ArrayRef<uint8_t> dbg_uuid = DbgObj->getUuid();
+ ArrayRef<uint8_t> bin_uuid = Obj->getUuid();
+ if (dbg_uuid.empty() || bin_uuid.empty())
+ return false;
+ return !memcmp(dbg_uuid.data(), bin_uuid.data(), dbg_uuid.size());
+}
+
+ObjectFile *LLVMSymbolizer::lookUpDsymFile(const std::string &ExePath,
+ const MachOObjectFile *MachExeObj, const std::string &ArchName) {
+ // On Darwin we may find DWARF in separate object file in
+ // resource directory.
+ std::vector<std::string> DsymPaths;
+ StringRef Filename = sys::path::filename(ExePath);
+ DsymPaths.push_back(getDarwinDWARFResourceForPath(ExePath, Filename));
+ for (const auto &Path : Opts.DsymHints) {
+ DsymPaths.push_back(getDarwinDWARFResourceForPath(Path, Filename));
+ }
+ for (const auto &path : DsymPaths) {
+ ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(path);
+ std::error_code EC = BinaryOrErr.getError();
+ if (EC != errc::no_such_file_or_directory && !error(EC)) {
+ OwningBinary<Binary> B = std::move(BinaryOrErr.get());
+ ObjectFile *DbgObj =
+ getObjectFileFromBinary(B.getBinary().get(), ArchName);
+ const MachOObjectFile *MachDbgObj =
+ dyn_cast<const MachOObjectFile>(DbgObj);
+ if (!MachDbgObj) continue;
+ if (darwinDsymMatchesBinary(MachDbgObj, MachExeObj)) {
+ addOwningBinary(std::move(B));
+ return DbgObj;
+ }
+ }
+ }
+ return nullptr;
+}
+
+LLVMSymbolizer::ObjectPair
+LLVMSymbolizer::getOrCreateObjects(const std::string &Path,
+ const std::string &ArchName) {
+ const auto &I = ObjectPairForPathArch.find(std::make_pair(Path, ArchName));
+ if (I != ObjectPairForPathArch.end())
return I->second;
- Binary *Bin = nullptr;
- Binary *DbgBin = nullptr;
+ ObjectFile *Obj = nullptr;
+ ObjectFile *DbgObj = nullptr;
ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(Path);
if (!error(BinaryOrErr.getError())) {
- OwningBinary<Binary> &ParsedBinary = BinaryOrErr.get();
- // Check if it's a universal binary.
- Bin = ParsedBinary.getBinary().get();
- addOwningBinary(std::move(ParsedBinary));
- if (Bin->isMachO() || Bin->isMachOUniversalBinary()) {
- // On Darwin we may find DWARF in separate object file in
- // resource directory.
- const std::string &ResourcePath =
- getDarwinDWARFResourceForPath(Path);
- BinaryOrErr = createBinary(ResourcePath);
- std::error_code EC = BinaryOrErr.getError();
- if (EC != errc::no_such_file_or_directory && !error(EC)) {
- OwningBinary<Binary> B = std::move(BinaryOrErr.get());
- DbgBin = B.getBinary().get();
- addOwningBinary(std::move(B));
- }
+ OwningBinary<Binary> &B = BinaryOrErr.get();
+ Obj = getObjectFileFromBinary(B.getBinary().get(), ArchName);
+ if (!Obj) {
+ ObjectPair Res = std::make_pair(nullptr, nullptr);
+ ObjectPairForPathArch[std::make_pair(Path, ArchName)] = Res;
+ return Res;
}
+ addOwningBinary(std::move(B));
+ if (auto MachObj = dyn_cast<const MachOObjectFile>(Obj))
+ DbgObj = lookUpDsymFile(Path, MachObj, ArchName);
// Try to locate the debug binary using .gnu_debuglink section.
- if (!DbgBin) {
+ if (!DbgObj) {
std::string DebuglinkName;
uint32_t CRCHash;
std::string DebugBinaryPath;
- if (getGNUDebuglinkContents(Bin, DebuglinkName, CRCHash) &&
+ if (getGNUDebuglinkContents(Obj, DebuglinkName, CRCHash) &&
findDebugBinary(Path, DebuglinkName, CRCHash, DebugBinaryPath)) {
BinaryOrErr = createBinary(DebugBinaryPath);
if (!error(BinaryOrErr.getError())) {
OwningBinary<Binary> B = std::move(BinaryOrErr.get());
- DbgBin = B.getBinary().get();
+ DbgObj = getObjectFileFromBinary(B.getBinary().get(), ArchName);
addOwningBinary(std::move(B));
}
}
}
}
- if (!DbgBin)
- DbgBin = Bin;
- BinaryPair Res = std::make_pair(Bin, DbgBin);
- BinaryForPath[Path] = Res;
+ if (!DbgObj)
+ DbgObj = Obj;
+ ObjectPair Res = std::make_pair(Obj, DbgObj);
+ ObjectPairForPathArch[std::make_pair(Path, ArchName)] = Res;
return Res;
}
ObjectFile *
-LLVMSymbolizer::getObjectFileFromBinary(Binary *Bin, const std::string &ArchName) {
+LLVMSymbolizer::getObjectFileFromBinary(Binary *Bin,
+ const std::string &ArchName) {
if (!Bin)
return nullptr;
ObjectFile *Res = nullptr;
ArchName = ArchStr;
}
}
- BinaryPair Binaries = getOrCreateBinary(BinaryName);
- ObjectFile *Obj = getObjectFileFromBinary(Binaries.first, ArchName);
- ObjectFile *DbgObj = getObjectFileFromBinary(Binaries.second, ArchName);
+ ObjectPair Objects = getOrCreateObjects(BinaryName, ArchName);
- if (!Obj) {
+ if (!Objects.first) {
// Failed to find valid object file.
Modules.insert(make_pair(ModuleName, (ModuleInfo *)nullptr));
return nullptr;
}
- DIContext *Context = DIContext::getDWARFContext(*DbgObj);
+ DIContext *Context = DIContext::getDWARFContext(*Objects.second);
assert(Context);
- ModuleInfo *Info = new ModuleInfo(Obj, Context);
+ ModuleInfo *Info = new ModuleInfo(Objects.first, Context);
Modules.insert(make_pair(ModuleName, Info));
return Info;
}
bool PrintInlining : 1;
bool Demangle : 1;
std::string DefaultArch;
+ std::vector<std::string> DsymHints;
Options(bool UseSymbolTable = true,
FunctionNameKind PrintFunctions = FunctionNameKind::LinkageName,
bool PrintInlining = true, bool Demangle = true,
std::string DefaultArch = "")
- : UseSymbolTable(UseSymbolTable), PrintFunctions(PrintFunctions),
- PrintInlining(PrintInlining), Demangle(Demangle),
- DefaultArch(DefaultArch) {}
+ : UseSymbolTable(UseSymbolTable),
+ PrintFunctions(PrintFunctions), PrintInlining(PrintInlining),
+ Demangle(Demangle), DefaultArch(DefaultArch) {}
};
LLVMSymbolizer(const Options &Opts = Options()) : Opts(Opts) {}
void flush();
static std::string DemangleName(const std::string &Name);
private:
- typedef std::pair<Binary*, Binary*> BinaryPair;
+ typedef std::pair<ObjectFile*, ObjectFile*> ObjectPair;
ModuleInfo *getOrCreateModuleInfo(const std::string &ModuleName);
- /// \brief Returns pair of pointers to binary and debug binary.
- BinaryPair getOrCreateBinary(const std::string &Path);
+ ObjectFile *lookUpDsymFile(const std::string &Path, const MachOObjectFile *ExeObj,
+ const std::string &ArchName);
+
+ /// \brief Returns pair of pointers to object and debug object.
+ ObjectPair getOrCreateObjects(const std::string &Path,
+ const std::string &ArchName);
/// \brief Returns a parsed object file for a given architecture in a
/// universal binary (or the binary itself if it is an object file).
ObjectFile *getObjectFileFromBinary(Binary *Bin, const std::string &ArchName);
// Owns module info objects.
std::map<std::string, ModuleInfo *> Modules;
- std::map<std::string, BinaryPair> BinaryForPath;
std::map<std::pair<MachOUniversalBinary *, std::string>, ObjectFile *>
ObjectFileForArch;
+ std::map<std::pair<std::string, std::string>, ObjectPair>
+ ObjectPairForPathArch;
Options Opts;
static const char kBadString[];
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
+#include "llvm/Support/FileSystem.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Signals.h"
cl::desc("Path to object file to be symbolized (if not provided, "
"object file should be specified for each input line)"));
+static cl::list<std::string>
+ClDsymHint("dsym-hint", cl::ZeroOrMore,
+ cl::desc("Path to .dSYM bundles to search for debug info for the "
+ "object files"));
+
static bool parseCommand(bool &IsData, std::string &ModuleName,
uint64_t &ModuleOffset) {
const char *kDataCmd = "DATA ";
cl::ParseCommandLineOptions(argc, argv, "llvm-symbolizer\n");
LLVMSymbolizer::Options Opts(ClUseSymbolTable, ClPrintFunctions,
ClPrintInlining, ClDemangle, ClDefaultArch);
+ for (const auto &hint : ClDsymHint) {
+ if (sys::path::extension(hint) == ".dSYM") {
+ Opts.DsymHints.push_back(hint);
+ } else {
+ errs() << "Warning: invalid dSYM hint: \"" << hint <<
+ "\" (must have the '.dSYM' extension).\n";
+ }
+ }
LLVMSymbolizer Symbolizer(Opts);
bool IsData = false;