[DWARF parser] Teach DIContext to fetch short (non-linkage) function names for a given address.

Change --functions option in llvm-symbolizer tool to accept
values "none", "short" or "linkage". Update the tests and docs
accordingly.

llvm-svn: 209050

1 files changed, 5 insertions, 4 deletions

diff --git a/llvm/tools/llvm-symbolizer/LLVMSymbolize.h b/llvm/tools/llvm-symbolizer/LLVMSymbolize.h
index a1283a511af..45febe07847 100644
--- a/llvm/tools/llvm-symbolizer/LLVMSymbolize.h
+++ b/llvm/tools/llvm-symbolizer/LLVMSymbolize.h
@@ -24,6 +24,7 @@
 
 namespace llvm {
 
+typedef DILineInfoSpecifier::FunctionNameKind FunctionNameKind;
 using namespace object;
 
 namespace symbolize {
@@ -34,17 +35,17 @@ class LLVMSymbolizer {
 public:
   struct Options {
     bool UseSymbolTable : 1;
-    bool PrintFunctions : 1;
+    FunctionNameKind PrintFunctions;
     bool PrintInlining : 1;
     bool Demangle : 1;
     std::string DefaultArch;
-    Options(bool UseSymbolTable = true, bool PrintFunctions = true,
+    Options(bool UseSymbolTable = true,
+            FunctionNameKind PrintFunctions = FunctionNameKind::LinkageName,
             bool PrintInlining = true, bool Demangle = true,
             std::string DefaultArch = "")
         : UseSymbolTable(UseSymbolTable), PrintFunctions(PrintFunctions),
           PrintInlining(PrintInlining), Demangle(Demangle),
-          DefaultArch(DefaultArch) {
-    }
+          DefaultArch(DefaultArch) {}
   };
 
   LLVMSymbolizer(const Options &Opts = Options()) : Opts(Opts) {}