A method of using exception information for binary code. The method comprises: receiving exception information relating to an exception occurring during execution of binary code, the exception information including a code reference identifying a function executing while the exception occurred, and a line number for that function. The method also comprises: accessing intermediate code using the code reference and the line number to obtain intermediate code fragments; converting the intermediate code fragments to a source code approximation; and providing the source code approximation and function name to a log for subsequent analysis.