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[llvm-nm] Fix crash when running with --print-armap on corrupt archives.

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error() in llvm-nm intentionally does not return so that the callee can move on to future files/slices. When printing the archive map, this is not currently handled (the caller assumes that error() returns), so processing continues despite there being an error.

Also, change one return to a break, so that symbols can be printed even if the archive map is corrupt.

llvm-svn: 344268
This commit is contained in:
Jordan Rupprecht 2018-10-11 17:55:11 +00:00
parent bf4374359e
commit 31ccce8fd0
1 changed files with 4 additions and 2 deletions
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6
tools/llvm-nm/llvm-nm.cpp
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@ -1755,12 +1755,14 @@ static void dumpSymbolNamesFromFile(std::string &Filename) {
outs() << "Archive map\n";
for (; I != E; ++I) {
Expected<Archive::Child> C = I->getMember();
if (!C)
if (!C) {
error(C.takeError(), Filename);
break;
}
Expected<StringRef> FileNameOrErr = C->getName();
if (!FileNameOrErr) {
error(FileNameOrErr.takeError(), Filename);
return;
break;
}
StringRef SymName = I->getName();
outs() << SymName << " in " << FileNameOrErr.get() << "\n";