On Mon, Sep 07, 2015 at 11:13:35AM +0200, Joerg Sonnenberger wrote: > > Two nits: > > > > 1) vnode_to_path(9) is undocumented > > 2) it only works if you are lucky (IIUC) - which you mostly are > > > > The former is easy to fix, the latter IMHO is a killer before we expose > > this interface prominently and make debuggers depend on it. We then should > > also make $ORIGIN work in ld.elf_so ;-} > > My suggestion was to just provide the filesystem id and inode number as > fallback. I still believe we should just turn on the code that remembers > the realpath on exec in first place, if you want to debug > something_with_a_very_very_very_very_..._very_long_name, you can always > override the (missing) default.
As best I recall (having tried to page the context in the past few days) the only reason that code is disabled is so that it fails in a way that's readily explainable (non-absolute paths) vs. arbitrarily and capriciously. There's another problem this thread hasn't mentioned, which is that the result of vnode_to_path for non-directories isn't necessarily unique or deterministic even if the object hasn't been moved about. -- David A. Holland dholl...@netbsd.org