On Sun, Jan 20, 2019 at 11:29:29AM +0100, Marc Balmer wrote: > > > > Am 20.01.2019 um 11:14 schrieb Kamil Rytarowski <n...@gmx.com>: > > > > On 20.01.2019 11:03, Martin Husemann wrote: > >> On Sun, Jan 20, 2019 at 10:32:43AM +0100, Kamil Rytarowski wrote: > >>> I find it as workaround of our libc behavior. > >> > >> I disagree, there is no clean way to implement the call-on-dlclose > >> semantics (i.e. it needs disgusting ld.elf_so hacks and layer violations). > >> > >> But maybe we should document the __cxa_atexit interface or provide a > >> public version? > >> > > > > libc++abi does not support a public interface to __cxa_atexit. > > > > It's also documented as being an internal API, so in my opinion without > > need for a documentation. It could be mentioned in atexit(3). > > > One could argue that libraries should not use atexit() at all, but use > _fini() to their clean up tasks. Dunno hwo portable that is, however.
That's essentially one of the two suggestion options. Using a global destructor or using __cxa_atexit. Joerg
