Add a flag to DwarfDebug to allow it to communicate whether or not

we're using the darwin old gdb compat mode for emitting dwarf.

llvm-svn: 162486

2 files changed, 9 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index d9dcd334a94..1991785b119 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -145,6 +145,8 @@ DwarfDebug::DwarfDebug(AsmPrinter *A, Module *M)
     DwarfAccelTables = true;
     DarwinGDBCompat = true;
   }
+
+  isDarwinGDBCompat = DarwinGDBCompat;
   
   {
     NamedRegionTimer T(DbgTimerName, DWARFGroupName, TimePassesIsEnabled);
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
index d1d65126550..78c871688e6 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -307,6 +307,9 @@ class DwarfDebug {
   // table for the same directory as DW_at_comp_dir.
   StringRef CompilationDir;
 
+  // A holder for the DarwinGDBCompat flag so that the compile unit can use it.
+  bool isDarwinGDBCompat;
+
 private:
 
   /// assignAbbrevNumber - Define a unique number for the abbreviation.
@@ -520,6 +523,10 @@ public:
   /// getStringPoolEntry - returns an entry into the string pool with the given
   /// string text.
   MCSymbol *getStringPoolEntry(StringRef Str);
+
+  /// useDarwinGDBCompat - returns whether or not to limit some of our debug
+  /// output to the limitations of darwin gdb.
+  bool useDarwinGDBCompat() { return isDarwinGDBCompat; }
 };
 } // End of namespace llvm