Updated to fedora-glibc-20090424T0747cvs/fedora-glibc-2_9_90-20

1 files changed, 12 insertions, 0 deletions

diff --git a/elf/dl-open.c b/elf/dl-open.c
index 458cf0cd13..c3f0e42d5e 100644
--- a/elf/dl-open.c
+++ b/elf/dl-open.c
@@ -490,6 +490,18 @@ dl_open_worker (void *a)
 
 	  if (imap->l_need_tls_init)
 	    {
+	      /* For static TLS we have to allocate the memory here
+		 and now.  This includes allocating memory in the DTV.
+		 But we cannot change any DTV other than our own. So,
+		 if we cannot guarantee that there is room in the DTV
+		 we don't even try it and fail the load.
+
+		 XXX We could track the minimum DTV slots allocated in
+		 all threads.  */
+	      if (! RTLD_SINGLE_THREAD_P && imap->l_tls_modid > DTV_SURPLUS)
+		_dl_signal_error (0, "dlopen", NULL, N_("\
+cannot load any more object with static TLS"));
+
 	      imap->l_need_tls_init = 0;
 #ifdef SHARED
 	      /* Update the slot information data for at least the