Fix TLS detection: test with linker, add --disable-compiler-tls

[urcu.git] / README

diff --git a/README b/README
index 81afe0e2757c8bceabef7c50ff4102d0600aa8d3..83330eab1e5ab82cd128dd6c68cdc247f1f272a8 100644 (file)
--- a/README
+++ b/README
@@ -274,3 +274,10 @@ Interaction with fork()
        call_rcu_after_fork_parent() after the fork().  The child
        process must invoke call_rcu_after_fork_child().
        These three APIs are suitable for passing to pthread_atfork().
+
+Thread Local Storage (TLS)
+
+       Userspace RCU can fall back on pthread_getspecific() to emulate
+       TLS variables on systems where it is not available. This behavior
+       can be forced by specifying --disable-compiler-tls as configure
+       argument.