politely report it instead of running into llvm_unreachable.
Also patch llvm-dwarfdump to actually check whether the file it's attempting to
dump is a valid object file.
llvm-svn: 173489
sys::LLVMFileType type = sys::IdentifyFileType(Object->getBufferStart(),
static_cast<unsigned>(Object->getBufferSize()));
switch (type) {
+ case sys::Unknown_FileType:
+ return 0;
case sys::ELF_Relocatable_FileType:
case sys::ELF_Executable_FileType:
case sys::ELF_SharedObject_FileType:
case sys::COFF_FileType:
return createCOFFObjectFile(Object);
default:
- llvm_unreachable("Unknown Object File Type");
+ llvm_unreachable("Unexpected Object File Type");
}
}
}
OwningPtr<ObjectFile> Obj(ObjectFile::createObjectFile(Buff.take()));
+ if (!Obj) {
+ errs() << Filename << ": Unknown object file format\n";
+ return;
+ }
+
OwningPtr<DIContext> DICtx(DIContext::getDWARFContext(Obj.get()));
if (Address == -1ULL) {