components/x11/mesa/patches/patch-src_glx_dri__common.c.patch

   1 $NetBSD: patch-src_glx_dri__common.c,v 1.1 2022/03/13 15:52:50 tnn Exp $
   2
   3 atexit() is not a good idea in shared libraries.
   4
   5 FreeBSD reported atexit bug for 10.6:
   6 https://bugs.freedesktop.org/show_bug.cgi?id=91869
   7
   8 --- src/glx/dri_common.c.orig   2021-07-14 20:04:55.743010300 +0000
   9 +++ src/glx/dri_common.c
  10 @@ -690,9 +690,19 @@ static struct driver_config_entry *drive
  11  /* Called as an atexit function. Otherwise, this would have to be called with
  12   * driver_config_mutex locked.
  13   */
  14 +#if defined(HAVE_NOATEXIT)
  15 +static Bool e_next_ever_null = False;
  16 +
  17 +static void __attribute__((__destructor__))
  18 +#else
  19  static void
  20 +#endif
  21  clear_driver_config_cache()
  22  {
  23 +#if defined(HAVE_NOATEXIT)
  24 +   if (!e_next_ever_null)
  25 +      return;
  26 +#endif
  27     while (driver_config_cache) {
  28        struct driver_config_entry *e = driver_config_cache;
  29        driver_config_cache = e->next;
  30 @@ -777,7 +787,11 @@ glXGetDriverConfig(const char *driverNam
  31     driver_config_cache = e;
  32
  33     if (!e->next)
  34 +#if defined(HAVE_NOATEXIT)
  35 +      e_next_ever_null = True;
  36 +#else
  37        atexit(clear_driver_config_cache);
  38 +#endif
  39
  40  out:
  41     pthread_mutex_unlock(&driver_config_mutex);