ftrace: Make CALLER_ADDRx macros more generic
authorAKASHI Takahiro <takahiro.akashi@linaro.org>
Tue, 20 May 2014 11:31:04 +0000 (20:31 +0900)
committerSteven Rostedt <rostedt@goodmis.org>
Wed, 21 May 2014 07:10:32 +0000 (03:10 -0400)
commiteed542d6962ba33a689b4007a389f466e407bd74
treed7ecb07cb30a0d4f20497fa6ef90d3829b4c701a
parentd6d211db37e75de2ddc3a4f979038c40df7cc79c
ftrace: Make CALLER_ADDRx macros more generic

Most archs with HAVE_ARCH_CALLER_ADDR have pretty much the same
definitions of CALLER_ADDRx(n). Instead of duplicating the code for all
the archs, define a ftrace_return_address0() and
ftrace_return_address(n) that can be overwritten by the archs if they
need to do something different. Instead of 7 macros in every arch, we
now only have at most 2 (and actually only 1 as
ftrace_return_address0() should be the same for all archs).

The CALLER_ADDRx(n) will now be defined in linux/ftrace.h and use the
ftrace_return_address*(n?) macros. This removes a lot of the duplicate
code.

Link: http://lkml.kernel.org/p/1400585464-30333-1-git-send-email-takahiro.akashi@linaro.org
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
arch/arm/include/asm/ftrace.h
arch/blackfin/include/asm/ftrace.h
arch/parisc/include/asm/ftrace.h
arch/sh/include/asm/ftrace.h
arch/xtensa/include/asm/ftrace.h
include/linux/ftrace.h