(gdb) break wl_drm_create_prime_buffer
Function "wl_drm_create_prime_buffer" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (wl_drm_create_prime_buffer) pending.
(gdb) run
Starting program: /usr/bin/weston-simple-egl
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
has EGL_EXT_buffer_age and EGL_EXT_swap_buffers_with_damage

Program received signal SIGSEGV, Segmentation fault.
wl_proxy_add_listener (proxy=0x0, implementation=0xb7a0d3f8 , data=0x435800) at src/wayland-client.c:469
469             if (proxy->flags