Techniques for debugging a computer program that includes multiple modules written in multiple languages allow machines for the multiple languages to interface with a single debugger client using a standard interface. The techniques include storing a mapping that maps language constructs of a first language into language constructs of a second language. While a first machine is executing a first module that is written in the first language, the mapping is used to generate debugging information based on language constructs of the second language. The debugging information is sent to a debugger process designed for debugging programs written in the second language.