[obj2yaml] Don't crash for input files without symbol table
Summary: Previously we would dereference Symtab without checking for null.
Reviewers: davide, atanasyan, rafael
Reviewed By: davide, atanasyan
Differential Revision: https://reviews.llvm.org/D38080
llvm-svn: 313970
diff --git a/llvm/tools/obj2yaml/elf2yaml.cpp b/llvm/tools/obj2yaml/elf2yaml.cpp
index 8997a5c..8c94843 100644
--- a/llvm/tools/obj2yaml/elf2yaml.cpp
+++ b/llvm/tools/obj2yaml/elf2yaml.cpp
@@ -188,6 +188,8 @@
}
// Dump symbols
+ if (!Symtab)
+ return Y.release(); // if the symbol table is missing return early
auto StrTableOrErr = Obj.getStringTableForSymtab(*Symtab);
if (!StrTableOrErr)
return errorToErrorCode(StrTableOrErr.takeError());