in MachODump.cpp [911:1133]
void llvm::parseInputMachO(StringRef Filename) {
// Check for -arch all and verifiy the -arch flags are valid.
for (unsigned i = 0; i < ArchFlags.size(); ++i) {
if (ArchFlags[i] == "all") {
ArchAll = true;
} else {
if (!MachOObjectFile::isValidArch(ArchFlags[i])) {
errs() << "llvm-mctoll: Unknown architecture named '" + ArchFlags[i] +
"'for the -arch option\n";
return;
}
}
}
// Attempt to open the binary.
Expected<OwningBinary<Binary>> BinaryOrErr = createBinary(Filename);
if (!BinaryOrErr) {
if (auto E = isNotObjectErrorInvalidFileType(BinaryOrErr.takeError()))
report_error(std::move(E), Filename);
else
outs() << Filename << ": is not an object file\n";
return;
}
Binary &Bin = *BinaryOrErr.get().getBinary();
if (Archive *A = dyn_cast<Archive>(&Bin)) {
outs() << "Archive : " << Filename << "\n";
Error Err = Error::success();
for (auto &C : A->children(Err)) {
Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
if (!ChildOrErr) {
if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError()))
report_error(std::move(E), Filename, C);
continue;
}
if (MachOObjectFile *O = dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) {
if (!checkMachOAndArchFlags(O, Filename))
return;
ProcessMachO(Filename, O, O->getFileName());
}
}
if (Err)
report_error(std::move(Err), Filename);
return;
}
if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin)) {
// If we have a list of architecture flags specified dump only those.
if (!ArchAll && ArchFlags.size() != 0) {
// Look for a slice in the universal binary that matches each ArchFlag.
bool ArchFound;
for (unsigned i = 0; i < ArchFlags.size(); ++i) {
ArchFound = false;
for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
E = UB->end_objects();
I != E; ++I) {
if (ArchFlags[i] == I->getArchFlagName()) {
ArchFound = true;
Expected<std::unique_ptr<ObjectFile>> ObjOrErr =
I->getAsObjectFile();
std::string ArchitectureName = "";
if (ArchFlags.size() > 1)
ArchitectureName = I->getArchFlagName();
if (ObjOrErr) {
ObjectFile &O = *ObjOrErr.get();
if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O))
ProcessMachO(Filename, MachOOF, "", ArchitectureName);
} else if (auto E = isNotObjectErrorInvalidFileType(
ObjOrErr.takeError())) {
report_error(std::move(E), Filename, StringRef(),
ArchitectureName);
continue;
} else if (Expected<std::unique_ptr<Archive>> AOrErr =
I->getAsArchive()) {
std::unique_ptr<Archive> &A = *AOrErr;
outs() << "Archive : " << Filename;
if (!ArchitectureName.empty())
outs() << " (architecture " << ArchitectureName << ")";
outs() << "\n";
Error Err = Error::success();
for (auto &C : A->children(Err)) {
Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
if (!ChildOrErr) {
if (auto E = isNotObjectErrorInvalidFileType(
ChildOrErr.takeError()))
report_error(std::move(E), Filename, C, ArchitectureName);
continue;
}
if (MachOObjectFile *O =
dyn_cast<MachOObjectFile>(&*ChildOrErr.get()))
ProcessMachO(Filename, O, O->getFileName(), ArchitectureName);
}
if (Err)
report_error(std::move(Err), Filename);
} else {
consumeError(AOrErr.takeError());
error("Mach-O universal file: " + Filename + " for " +
"architecture " + StringRef(I->getArchFlagName()) +
" is not a Mach-O file or an archive file");
}
}
}
if (!ArchFound) {
errs() << "llvm-mctoll: file: " + Filename + " does not contain "
<< "architecture: " + ArchFlags[i] + "\n";
return;
}
}
return;
}
// No architecture flags were specified so if this contains a slice that
// matches the host architecture dump only that.
if (!ArchAll) {
for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
E = UB->end_objects();
I != E; ++I) {
if (MachOObjectFile::getHostArch().getArchName() ==
I->getArchFlagName()) {
Expected<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
std::string ArchiveName;
ArchiveName.clear();
if (ObjOrErr) {
ObjectFile &O = *ObjOrErr.get();
if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O))
ProcessMachO(Filename, MachOOF);
} else if (auto E = isNotObjectErrorInvalidFileType(
ObjOrErr.takeError())) {
report_error(std::move(E), Filename);
continue;
} else if (Expected<std::unique_ptr<Archive>> AOrErr =
I->getAsArchive()) {
std::unique_ptr<Archive> &A = *AOrErr;
Error Err = Error::success();
for (auto &C : A->children(Err)) {
Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
if (!ChildOrErr) {
if (auto E =
isNotObjectErrorInvalidFileType(ChildOrErr.takeError()))
report_error(std::move(E), Filename, C);
continue;
}
if (MachOObjectFile *O =
dyn_cast<MachOObjectFile>(&*ChildOrErr.get()))
ProcessMachO(Filename, O, O->getFileName());
}
if (Err)
report_error(std::move(Err), Filename);
} else {
consumeError(AOrErr.takeError());
error("Mach-O universal file: " + Filename + " for architecture " +
StringRef(I->getArchFlagName()) +
" is not a Mach-O file or an archive file");
}
return;
}
}
}
// Either all architectures have been specified or none have been specified
// and this does not contain the host architecture so dump all the slices.
bool moreThanOneArch = UB->getNumberOfObjects() > 1;
for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
E = UB->end_objects();
I != E; ++I) {
Expected<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
std::string ArchitectureName = "";
if (moreThanOneArch)
ArchitectureName = I->getArchFlagName();
if (ObjOrErr) {
ObjectFile &Obj = *ObjOrErr.get();
if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&Obj))
ProcessMachO(Filename, MachOOF, "", ArchitectureName);
} else if (auto E =
isNotObjectErrorInvalidFileType(ObjOrErr.takeError())) {
report_error(std::move(E), Filename, StringRef(), ArchitectureName);
continue;
} else if (Expected<std::unique_ptr<Archive>> AOrErr =
I->getAsArchive()) {
std::unique_ptr<Archive> &A = *AOrErr;
outs() << "Archive : " << Filename;
if (!ArchitectureName.empty())
outs() << " (architecture " << ArchitectureName << ")";
outs() << "\n";
Error Err = Error::success();
for (auto &C : A->children(Err)) {
Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
if (!ChildOrErr) {
if (auto E =
isNotObjectErrorInvalidFileType(ChildOrErr.takeError()))
report_error(std::move(E), Filename, C, ArchitectureName);
continue;
}
if (MachOObjectFile *O =
dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) {
if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(O))
ProcessMachO(Filename, MachOOF, MachOOF->getFileName(),
ArchitectureName);
}
}
if (Err)
report_error(std::move(Err), Filename);
} else {
consumeError(AOrErr.takeError());
error("Mach-O universal file: " + Filename + " for architecture " +
StringRef(I->getArchFlagName()) +
" is not a Mach-O file or an archive file");
}
}
return;
}
if (ObjectFile *O = dyn_cast<ObjectFile>(&Bin)) {
if (!checkMachOAndArchFlags(O, Filename))
return;
if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&*O)) {
ProcessMachO(Filename, MachOOF);
} else
errs() << "llvm-mctoll: '" << Filename << "': "
<< "Object is not a Mach-O file type.\n";
return;
}
llvm_unreachable("Input object can't be invalid at this point");
}