> This has always been the way we do this in Debian since we started > using it (in 2003), and we never had any problem with this. > Adding an extention was never needed, because other tools don't look > in the same directory as the executable itself. Only elfutils seems > to have a problem with this so far, because it has a different > search path.
I thought I'd made the original searching behavior match what gdb did at the time. Looking at gdb/symfile.c:find_separate_debug_file_by_debuglink today, and observing gdb's behavior, I was right. However, gdb (at least today) does appear to explicitly check for the case of the debuglink leading back to the same original file, and skip that. So I guess I should make libdwfl do that too. > I've also mailed about a simular problem using systemtap, which > basicly has the same issue, trying to open the same file twice. Systemtap uses libdw, so we're talking about the same code. (It might supply a different debuginfo path, is all.) > One argument I have against adding an extention is that this might > result in a file conflict for debug files where a file conflict > doesn't exist for the non-debug files. I don't understand this. > I'm also not sure why the default search path includes the path > where the executable is in. It doesn't make sense to store those > debug files in something like /usr/bin/ to me. And if it's not > installed, it's probably also not stripped. So maybe changing > the default search path is an option? Well, I didn't choose the original search path behavior, I just followed the gdb behavior. So I don't have my own justifications, just guesses about what motivated it. I don't imagine that anyone ever expected distro packages to use places like that. But people/sites/organizations installing their own binaries in other places might use /some/place/foo and /some/place/foo.debug or /some/place/.debug/foo.debug. Thanks, Roland _______________________________________________ elfutils-devel mailing list [email protected] https://fedorahosted.org/mailman/listinfo/elfutils-devel
