Hi! If gcov is used in projects where gcc is invoked in different directories, it may happen that the same source is compiled with different relative names, and the gcov tool is thus unable to find out, if it is the same source file or not, or to dump the source at all, which is a limitation of the gcov tool. So I would like to add a -fprofile-abs-path option that forces absolute path names in gcno files, which allows gcov to get the true canonicalized source name. Bootstrapped and reg-tested on x86_64-pc-linux-gnu. Is it OK for trunk? Thanks Bernd.