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Object, COFF: getRelocationSymbol shouldn't assert

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lib/Object is supposed to be robust to malformed object files.  Don't
assert if we don't have a symbol table.  I'll try to come up with a test
case later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221870 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Majnemer 2014-11-13 07:42:11 +00:00
parent f7046b7244
commit 344411bd12
2 changed files with 4 additions and 4 deletions
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2
lib/Object/COFFObjectFile.cpp
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@ -996,7 +996,7 @@ symbol_iterator COFFObjectFile::getRelocationSymbol(DataRefImpl Rel) const {
else if (SymbolTable32)
Ref.p = reinterpret_cast<uintptr_t>(SymbolTable32 + R->SymbolTableIndex);
else
llvm_unreachable("no symbol table pointer!");
return symbol_end();
return symbol_iterator(SymbolRef(Ref, this));
}

6
tools/llvm-readobj/COFFDumper.cpp
View File

@ -800,7 +800,7 @@ void COFFDumper::printRelocation(const SectionRef &Section,
if (error(Reloc.getTypeName(RelocName)))
return;
symbol_iterator Symbol = Reloc.getSymbol();
if (error(Symbol->getName(SymbolName)))
if (Symbol != Obj->symbol_end() && error(Symbol->getName(SymbolName)))
return;
if (error(Section.getContents(Contents)))
return;
@ -809,12 +809,12 @@ void COFFDumper::printRelocation(const SectionRef &Section,
DictScope Group(W, "Relocation");
W.printHex("Offset", Offset);
W.printNumber("Type", RelocName, RelocType);
W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
W.printString("Symbol", SymbolName.empty() ? "-" : SymbolName);
} else {
raw_ostream& OS = W.startLine();
OS << W.hex(Offset)
<< " " << RelocName
<< " " << (SymbolName.size() > 0 ? SymbolName : "-")
<< " " << (SymbolName.empty() ? "-" : SymbolName)
<< "\n";
}
}