r_debug_state
void r_debug_state(struct r_debug *, struct link_map *) __noinline;
r_debug.r_brk = r_debug_state;
#define GDB_STATE(s,m) r_debug.r_state = s; r_debug_state(&r_debug,m);
r_debug_state(NULL, &obj_main->linkmap); /* say hello to gdb! */