Don't include --start-lib/--end-lib files twice.
This should never happen with correct programs, but it is trivial
write a testcase where lld would crash or report duplicated
symbols. We now behave like when an archive is used and include the
file only once.
llvm-svn: 272724
diff --git a/lld/ELF/Symbols.cpp b/lld/ELF/Symbols.cpp
index ce90549..61f7727 100644
--- a/lld/ELF/Symbols.cpp
+++ b/lld/ELF/Symbols.cpp
@@ -231,6 +231,9 @@
}
std::unique_ptr<InputFile> LazyObject::getFile() {
+ MemoryBufferRef MBRef = File.getBuffer();
+ if (MBRef.getBuffer().empty())
+ return std::unique_ptr<InputFile>(nullptr);
return createObjectFile(MBRef);
}