Mark some internal symbols as hidden on ELF in xbt

[simgrid.git] / src / xbt / ex.c

diff --git a/src/xbt/ex.c b/src/xbt/ex.c
index 0cd35b8..a54869f 100644 (file)
--- a/src/xbt/ex.c
+++ b/src/xbt/ex.c
@@ -148,6 +148,11 @@ void xbt_ex_display(xbt_ex_t * e)
   XBT_CRITICAL("%s", e->msg);
   xbt_free(thrower);
 
+  if (xbt_initialized==0 || smx_cleaned) {
+         fprintf(stderr, "Ouch. SimGrid is not initialized yet, or already closing. No backtrace available.\n");
+         return; /* Not started yet or already closing. Trying to generate a backtrace would probably fail */
+  }
+
   if (!e->bt_strings)
     xbt_ex_setup_backtrace(e);
 
@@ -333,7 +338,7 @@ XBT_TEST_UNIT("variables", test_variables, "variable value preservation")
 {
   xbt_ex_t ex;
   int r1;
-  int _XBT_GNUC_UNUSED r2;
+  int XBT_ATTRIB_UNUSED r2;
   int v1;
   volatile int v2;