how to convert object code to source code

[JAI SINGH]

hi friends I want to convert object code to source code so that I can change the defnitions of library functions...
so plz suggest me how to do it..

[SH4773R]

As far as I know you cannot convert object code back to source. What library are we talking about here? there's a good chance that the lib is open source and you can just download the source code from there website.