Dump INFO CODE_ID containing Build ID in Linux dump_syms

src/common/linux/dump_symbols.cc

Index: src/common/linux/dump_symbols.cc
diff --git a/src/common/linux/dump_symbols.cc b/src/common/linux/dump_symbols.cc
index 6b27120a4cb30ab6f2612942486cbdc5499acb3c..40b9e478b60bff47adb608e2969cc479c64919f2 100644
--- a/src/common/linux/dump_symbols.cc
+++ b/src/common/linux/dump_symbols.cc
@@ -926,8 +926,10 @@ bool InitModuleForElfClass(const typename ElfClass::Ehdr* elf_header,
   // number appended to the end of the file identifier; this isn't
   // really used or necessary on other platforms, but be consistent.
   string id = FileID::ConvertIdentifierToUUIDString(identifier) + "0";
+  // This is just the raw Build ID in hex.
+  string code_id = FileID::ConvertIdentifierToString(identifier);
 
-  module.reset(new Module(name, os, architecture, id));
+  module.reset(new Module(name, os, architecture, id, code_id));
 
   return true;
 }