On Mon, Dec 30, 2024 at 12:46 PM Daniel Xu <dxu@xxxxxxxxx> wrote: > > Hi, > > I was poking around bpftrace test suite and noticed that our d_path() > wrapper is truncating at the beginning of the path. See [0] for an > example. > > bpftrace codegen doesn't do anything fancy here. And I see in the kernel > d_path() implementation there's some prepend logic going on. > > I wanted to confirm this is the expected behavior. And if so, whether it > should be documented. This is expected behavior when the buffer is too small. bpftrace may react to the -ENAMETOOLONG error code in such a case.
