tree fdae97a03c8e8b3c4ff232e627e20da88d0477c2
parent 4d6829f92a02d96e1bec2ffe6ee674ef3b49722b
author Wu Zhangjin <wuzhangjin@gmail.com> 1273835312 +0800
committer Ralf Baechle <ralf@linux-mips.org> 1278346649 +0100

MIPS: Tracing: Reduce the overhead of dynamic Function Tracer

With the help of uasm this patch encodes the instructions of the dynamic
function tracer in ftrace_dyn_arch_init() when initializing it.

As a result we can remove the dynamic encoding of instructions in
ftrace_make_nop()/call(), ftrace_enable_ftrace_graph_caller() and remove
the macro jump_insn_encode() and at last this reduce the overhead of
dynamic Function Tracer.  This also is cleaner.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips <linux-mips@linux-mips.org>
Cc: David Daney <david.s.daney@gmail.com>
Patchwork: http://patchwork.linux-mips.org/patch/1230/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>