Add TLS support to libGL and, by virtue of using glthread.h and GL_CALL, all

DRI drivers.  A TLS enabled libGL can load a TLS or a non-TLS DRI driver,
but a TLS DRI driver requires a TLS enabled libGL.

This fixes bug #1822.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/glx/x11/dri_glx.c b/src/glx/x11/dri_glx.c
index b703c4fa9eb..7ac80eb74d7 100644
--- a/src/glx/x11/dri_glx.c
+++ b/src/glx/x11/dri_glx.c
@@ -222,6 +222,15 @@ static __DRIdriver *OpenDriver(const char *driverName)
       void *handle = NULL;
 
       
+      /* If TLS support is enabled, try to open the TLS version of the driver
+       * binary first.  If that fails, try the non-TLS version.
+       */
+#ifdef GLX_USE_TLS
+      snprintf(realDriverName, 200, "%s/tls/%s_dri.so", libDir, driverName);
+      InfoMessageF("OpenDriver: trying %s\n", realDriverName);
+      handle = dlopen(realDriverName, RTLD_NOW | RTLD_GLOBAL);
+#endif
+
       if ( handle == NULL ) {
 	 snprintf(realDriverName, 200, "%s/%s_dri.so", libDir, driverName);
 	 InfoMessageF("OpenDriver: trying %s\n", realDriverName);