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authorSiddhesh Poyarekar <siddhesh@redhat.com>2013-02-18 19:08:21 +0530
committerSiddhesh Poyarekar <siddhesh@redhat.com>2013-02-18 19:08:21 +0530
commitba384f6ed9275f3966505f2375b56d169e3dc588 (patch)
treed832a5a24bab934c946089b8d2a9a16f1766470d /nptl
parentffaa74cf68a370e232279a9a9b0a02ade287cc99 (diff)
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C++11 thread_local destructors support
This feature is specifically for the C++ compiler to offload calling
thread_local object destructors on thread program exit, to glibc.
This is to overcome the possible complication of destructors of
thread_local objects getting called after the DSO in which they're
defined is unloaded by the dynamic linker.  The DSO is marked as
'unloadable' if it has a constructed thread_local object and marked as
'unloadable' again when all the constructed thread_local objects
defined in it are destroyed.
Diffstat (limited to 'nptl')
-rw-r--r--nptl/pthread_create.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/nptl/pthread_create.c b/nptl/pthread_create.c
index 4fe0755079..c6f2fdd724 100644
--- a/nptl/pthread_create.c
+++ b/nptl/pthread_create.c
@@ -311,6 +311,9 @@ start_thread (void *arg)
 #endif
     }
 
+  /* Call destructors for the thread_local TLS variables.  */
+  __call_tls_dtors ();
+
   /* Run the destructor for the thread-local data.  */
   __nptl_deallocate_tsd ();