llvm-symbolizer: Ensure non-zero exit when an error is printed

(this doesn't cover all cases - libDebugInfoDWARF has a default error
handler that prints errors without any exit code handling - I'll be
following up with a patch for that after this)

1 files changed, 4 insertions, 1 deletions

diff --git a/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp b/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
index f57922b..509449a 100644
--- a/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
+++ b/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
@@ -73,12 +73,15 @@ static cl::list<std::string> ClInputAddresses(cl::Positional,
                                               cl::desc("<input addresses>..."),
                                               cl::ZeroOrMore);
 
+static bool HasError = false;
+
 template<typename T>
 static bool error(Expected<T> &ResOrErr) {
   if (ResOrErr)
     return false;
   logAllUnhandledErrors(ResOrErr.takeError(), errs(),
                         "LLVMSymbolizer: error reading file: ");
+  HasError = true;
   return true;
 }
 
@@ -336,5 +339,5 @@ int main(int argc, char **argv) {
                      Symbolizer, Printer);
   }
 
-  return 0;
+  return HasError;
 }