Check function name from objdump -d output

chk_dump_sym.rb

#!/usr/bin/env ruby

result = []
File.read(ARGV[0]).each_line do |line|
  # Match pattern "XXXXXXXX <function-name>:"
  # and extract the function name.
  # Note that all the symbol including '<', '>'
  # and ':' are literal, except 'function-name',
  # which is the variable we want.
  matchData = /(?<=\h{8} <)\w+(?=>:$)/ .match line
  result << matchData.to_s if matchData
end

puts result.sort