class Sentry::Profiler

def compute_filename(abs_path, in_app)

the native extension
TODO-neel-profiler try to fetch this from stackprof once we patch
copied from stacktrace.rb since I don't want to touch existing code 
def compute_filename(abs_path, in_app)
  return nil if abs_path.nil?
  under_project_root = @project_root && abs_path.start_with?(@project_root)
  prefix =
    if under_project_root && in_app
      @project_root
    else
      longest_load_path = $LOAD_PATH.select { |path| abs_path.start_with?(path.to_s) }.max_by(&:size)
      if under_project_root
        longest_load_path || @project_root
      else
        longest_load_path
      end
    end
  prefix ? abs_path[prefix.to_s.chomp(File::SEPARATOR).length + 1..-1] : abs_path
end