From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Thu, 24 May 2012 20:56:08 +0000 (-0400)
Subject: Fix library compatibility
X-Git-Tag: v0.7.2~1
X-Git-Url: http://git.lttng.org/?a=commitdiff_plain;h=3db1417f5d2f17fdb62f328650c888ae3097c4c5;hp=3db1417f5d2f17fdb62f328650c888ae3097c4c5;p=urcu.git

Fix library compatibility

Commit 4d0d66bb795d1ed938e11a97a4e5f71326e20c71, implementing
tls-compat.h for pthread TLS compatibility, adds a prefix in front of
each TLS symbol (__tls_*). However, some of these symbols are exported
by the URCU library (e.g. rcu_reader_mb, defined in urcu.c as
"rcu_reader", which is overloaded by the urcu/map/urcu.h) to
applications. Therefore, this breaks binary compatibility with 0.6.x
versions of the library. This is not intended, and therefore is a bug,
so we remove this __tls_* prefix from the variables declared, defined
and referenced to through the tls-compat.h API for compilers supporting
"__thread".

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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