Checking existence of a function in a library in linux

Question

During dynamic linking a weird undefined function reference appears. I know the name of the library which should contain this function. Is there any Linux command to make sure the function exists in the library (.a file)?

Answer 1

You should be able to use nm (might require the --demangle parameter) to get a list of everything being inside the library, then use grep to filter the results, e.g. look for \d T functionname\( or something like that.