Add an option to not handle DWARF inter-compilation unit references in Linux dump_syms.

This saves a lot of memory for dump_syms.

Review URL: https://breakpad.appspot.com/565002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1163 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/common/linux/dump_symbols.h

@@ -46,6 +46,16 @@ namespace google_breakpad {
 
 class Module;
 
+struct DumpOptions {
+  DumpOptions(SymbolData symbol_data, bool handle_inter_cu_refs)
+      : symbol_data(symbol_data),
+        handle_inter_cu_refs(handle_inter_cu_refs) {
+  }
+
+  SymbolData symbol_data;
+  bool handle_inter_cu_refs;
+};
+
 // Find all the debugging information in OBJ_FILE, an ELF executable
 // or shared library, and write it to SYM_STREAM in the Breakpad symbol
 // file format.
@@ -54,7 +64,7 @@ class Module;
 // SYMBOL_DATA allows limiting the type of symbol data written.
 bool WriteSymbolFile(const string &obj_file,
                      const std::vector<string>& debug_dirs,
-                     SymbolData symbol_data,
+                     const DumpOptions& options,
                      std::ostream &sym_stream);
 
 // As above, but simply return the debugging information in MODULE
@@ -62,7 +72,7 @@ bool WriteSymbolFile(const string &obj_file,
 // Module object and must delete it when finished.
 bool ReadSymbolData(const string& obj_file,
                     const std::vector<string>& debug_dirs,
-                    SymbolData symbol_data,
+                    const DumpOptions& options,
                     Module** module);
 
 }  // namespace google_breakpad