From: Helge Deller <deller@gmx.de>
Date: Thu, 17 Apr 2014 11:04:05 +0000 (-0400)
Subject: Add support for hppa/PA-RISC architecture
X-Git-Tag: v0.9.0~97
X-Git-Url: http://git.lttng.org/?a=commitdiff_plain;h=13e0bc720bc9baadf0adc007f0035c180888b1f1;hp=13e0bc720bc9baadf0adc007f0035c180888b1f1;p=urcu.git

Add support for hppa/PA-RISC architecture

Add the missing architecture specific functions to provide support for
the hppa/PA-RISC architecture:
- the processor internal time stamp counter (Control Register CR16) is
  used to get high-performance/low-latency cycle counts
- gcc provides the necessary built-in atomic functions on hppa (which in
  turn uses the light-weigth atomic locking syscall-interface of the
  Linux kernel)

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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