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powerpc: ftrace_caller, _mcount is exported to modules so needs _GLOBAL_TOC()
authorAnton Blanchard <anton@samba.org>
Thu, 3 Apr 2014 22:06:33 +0000 (09:06 +1100)
committerAnton Blanchard <anton@samba.org>
Wed, 23 Apr 2014 00:05:33 +0000 (10:05 +1000)
When testing the ftrace function tracer, I realised that ftrace_caller
and mcount are called from modules and they both call into C, therefore
they need the ABIv2 global entry point to establish r2.

Signed-off-by: Anton Blanchard <anton@samba.org>

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