+guess_library:
+ // pull off the suffix after the "." and make a point to it
+ a = Name.rfind('.');
+ if (a == Name.npos || a == 0)
+ return StringRef();
+ Dylib = Name.slice(a, Name.npos);
+ if (Dylib != ".dylib")
+ goto guess_qtx;
+
+ // First pull off the version letter for the form Foo.A.dylib if any.
+ if (a >= 3) {
+ Dot = Name.slice(a-2, a-1);
+ if (Dot == ".")
+ a = a - 2;
+ }
+
+ b = Name.rfind('/', a);
+ if (b == Name.npos)
+ b = 0;
+ else
+ b = b+1;
+ // ignore any suffix after an underbar like Foo_profile.A.dylib
+ Idx = Name.find('_', b);
+ if (Idx != Name.npos && Idx != b) {
+ Lib = Name.slice(b, Idx);
+ Suffix = Name.slice(Idx, a);
+ }
+ else
+ Lib = Name.slice(b, a);
+ // There are incorrect library names of the form:
+ // libATS.A_profile.dylib so check for these.
+ if (Lib.size() >= 3) {
+ Dot = Lib.slice(Lib.size()-2, Lib.size()-1);
+ if (Dot == ".")
+ Lib = Lib.slice(0, Lib.size()-2);
+ }
+ return Lib;
+
+guess_qtx:
+ Qtx = Name.slice(a, Name.npos);
+ if (Qtx != ".qtx")
+ return StringRef();
+ b = Name.rfind('/', a);
+ if (b == Name.npos)
+ Lib = Name.slice(0, a);
+ else
+ Lib = Name.slice(b+1, a);
+ // There are library names of the form: QT.A.qtx so check for these.
+ if (Lib.size() >= 3) {
+ Dot = Lib.slice(Lib.size()-2, Lib.size()-1);
+ if (Dot == ".")
+ Lib = Lib.slice(0, Lib.size()-2);
+ }
+ return Lib;
+}
+
+// getLibraryShortNameByIndex() is used to get the short name of the library
+// for an undefined symbol in a linked Mach-O binary that was linked with the
+// normal two-level namespace default (that is MH_TWOLEVEL in the header).
+// It is passed the index (0 - based) of the library as translated from
+// GET_LIBRARY_ORDINAL (1 - based).
+std::error_code MachOObjectFile::getLibraryShortNameByIndex(unsigned Index,
+ StringRef &Res) {
+ if (Index >= Libraries.size())
+ return object_error::parse_failed;
+
+ MachO::dylib_command D =
+ getStruct<MachO::dylib_command>(this, Libraries[Index]);
+ if (D.dylib.name >= D.cmdsize)
+ return object_error::parse_failed;
+
+ // If the cache of LibrariesShortNames is not built up do that first for
+ // all the Libraries.
+ if (LibrariesShortNames.size() == 0) {
+ for (unsigned i = 0; i < Libraries.size(); i++) {
+ MachO::dylib_command D =
+ getStruct<MachO::dylib_command>(this, Libraries[i]);
+ if (D.dylib.name >= D.cmdsize) {
+ LibrariesShortNames.push_back(StringRef());
+ continue;
+ }
+ const char *P = (const char *)(Libraries[i]) + D.dylib.name;
+ StringRef Name = StringRef(P);
+ StringRef Suffix;
+ bool isFramework;
+ StringRef shortName = guessLibraryShortName(Name, isFramework, Suffix);
+ if (shortName == StringRef())
+ LibrariesShortNames.push_back(Name);
+ else
+ LibrariesShortNames.push_back(shortName);
+ }
+ }
+
+ Res = LibrariesShortNames[Index];
+ return object_error::success;
+}
+
+basic_symbol_iterator MachOObjectFile::symbol_begin_impl() const {
+ return getSymbolByIndex(0);