Handle NetBSD specific path in findDebugBinary()

Summary:
The NetBSD Operating System installs debuginfo
files into /usr/libdata/debug, rather than other path
like in some other popular distribution.

This change makes llvm-symbolizer functional with
the basesystem executables.

Reviewers: joerg, vitalybuka

Reviewed By: vitalybuka

Subscribers: JDevlieghere, llvm-commits

Differential Revision: https://reviews.llvm.org/D48525

llvm-svn: 335511
diff --git a/llvm/lib/DebugInfo/Symbolize/Symbolize.cpp b/llvm/lib/DebugInfo/Symbolize/Symbolize.cpp
index c4a8b8d..f760a0e 100644
--- a/llvm/lib/DebugInfo/Symbolize/Symbolize.cpp
+++ b/llvm/lib/DebugInfo/Symbolize/Symbolize.cpp
@@ -192,8 +192,13 @@
     Result = DebugPath.str();
     return true;
   }
+#if defined(__NetBSD__)
+  // Try /usr/libdata/debug/path/to/original_binary/debuglink_name
+  DebugPath = "/usr/libdata/debug";
+#else
   // Try /usr/lib/debug/path/to/original_binary/debuglink_name
   DebugPath = "/usr/lib/debug";
+#endif
   llvm::sys::path::append(DebugPath, llvm::sys::path::relative_path(OrigDir),
                           DebuglinkName);
   if (checkFileCRC(DebugPath, CRCHash)) {