On Thu, Dec 21, 2006 at 10:00:47AM +1100, Ben Elliston wrote: > On Thu, 2006-12-21 at 09:56 +1100, Ben Elliston wrote: > > > After some digging, I managed to work out why: the gcov runtime code > > wants to create the .gcda file in the same directory that the object > > file was created on the build system. Unless the same directory > > structure exists on the target, the gcov runtime code just skips writing > > out the data file on exit. > > To be more precise, the gcov runtime first tries to create the required > path, but this is unlikely to succeed if it requires creating a new > directory under / (which only root can typically do). If it cannot > create the full path before creating the data file, the gcov runtime > code will just silently fail.
Ben, you understand what's going on here much better than I do, so if you come up with a patch that works it's pre-approved. Otherwise I can take a look in a couple of weeks. Janis
