[llvm-symbolizer] Add `--output-style` switch.

In general, llvm-symbolizer follows the output style of GNU's addr2line.
However, there are still some differences; in particular, for a requested
address, llvm-symbolizer prints line and column, while addr2line prints
only the line number.

This patch adds a new switch to select the preferred style.

Differential Revision: https://reviews.llvm.org/D60190

llvm-svn: 357675

1 files changed, 4 insertions, 1 deletions

diff --git a/llvm/lib/DebugInfo/Symbolize/DIPrinter.cpp b/llvm/lib/DebugInfo/Symbolize/DIPrinter.cpp
index 18fe9bc610b..f6c7ef84958 100644
--- a/llvm/lib/DebugInfo/Symbolize/DIPrinter.cpp
+++ b/llvm/lib/DebugInfo/Symbolize/DIPrinter.cpp
@@ -81,7 +81,10 @@ void DIPrinter::print(const DILineInfo &Info, bool Inlined) {
   else if (Basenames)
     Filename = llvm::sys::path::filename(Filename);
   if (!Verbose) {
-    OS << Filename << ":" << Info.Line << ":" << Info.Column << "\n";
+    OS << Filename << ":" << Info.Line;
+    if (Style == OutputStyle::LLVM)
+      OS << ":" << Info.Column;
+    OS << "\n";
     printContext(Filename, Info.Line);
     return;
   }