Hi Jean-Sébastien, On 3 September 2015 at 19:07, Jean-Sébastien Pédron <jean-sebastien.ped...@dumbbell.fr> wrote: > ... to free the ralloc context at program exit. > > On Linux, atexit(3) handlers are called when the program exits but also > when a library is unloaded. The latter behavior is a Glibc extension. > > On systems where this extension is not supported, this causes an > application to crash when, for instance, a library using ralloc is > dlclosed: at program exit, the registered function is no longer in > memory. For example, this happens with OpenCL applications using an ICD > loader on FreeBSD. > We have 4(5) users of atexit() - EGL, gallium trace driver, core mesa and util/ralloc. The latter of which is used almost everywhere in mesa. So a bit I'm confused how you hit this only with OpenCL :-\ Perhaps the others should be updated as well ?
> __attribute__((destructor)) fixes the problem because such handlers are > called when a library is unloaded and when the program exits. Considering that atexit() (reportedly) works for Linux/Glibc, Solaris, Android and Windows perhaps we should consider this as a workaround for FreeBSD (and other *BSD) systems ? Considering the multiple users (mentioned above) should one set priority for the destructors ? Cheers, Emil _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
