[Lldb-commits] [PATCH] Patch for LLDB demangler for demangling upon actual language

Greg Clayton clayborg at gmail.com
Fri Jan 30 14:59:25 PST 2015

I really can't take the memory hit that is incurred by adding anything to the Mangled class. lldb_private::Symbols are one of the largest sources of memory consumption by a large debug session in LLDB and adding and extra 64 bits (32 for the enum and 1 byte for the bool and then padding) to each one it too much. Can we make this change in a way that doesn't require the extra storage?

Can't we tell what is mangled by looking at the prefix in a Mangled instance? If not, you will need to make a MangleWithLanguage instance for places the language needs to be used if it can't be deduced by the mangling prefix. The "m_language" is not really used inside the the Mangled class, so it isn't required for anything inside of the Mangled class.

You should also not have to modify the DWARF parser at all, you can just get the lldb_private::CompileUnit from the DWARF compile unit and ask the lldb_private::CompileUnit for its language (lldb_private::CompileUnit::GetLanguage()).




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