[5/5] powerpc/ppc32: static ftrace fixes for PPC32

From: Steven Rostedt <rostedt@gollum.(none)>

Impact: fix for PowerPC 32 code

There were some early init code that was not safe for static
ftrace to boot on my PowerBook. This code must only use relative
addressing, and static mcount performs a compare of the
ftrace_trace_function pointer, and gets that with an absolute address.
In the early init boot up code, this will cause a fault.

This patch removes tracing from the files containing the offending
functions.

Signed-off-by: Steven Rostedt <rostedt@gollum.(none)>
---
 arch/powerpc/kernel/Makefile |    1 +
 arch/powerpc/lib/Makefile    |    3 +++
 2 files changed, 4 insertions(+), 0 deletions(-)

On Wed, 26 Nov 2008, Steven Rostedt wrote:

> From: Steven Rostedt <rostedt@gollum.(none)>

Ah, I need to add GIT_AUTHOR on my PowerBook. And yes, it's name
is gollum ;-)

I'll fix this and push it again.

-- Steve

> 
> Impact: fix for PowerPC 32 code
> 
> There were some early init code that was not safe for static
> ftrace to boot on my PowerBook. This code must only use relative
> addressing, and static mcount performs a compare of the
> ftrace_trace_function pointer, and gets that with an absolute address.
> In the early init boot up code, this will cause a fault.
> 
> This patch removes tracing from the files containing the offending
> functions.
> 
> Signed-off-by: Steven Rostedt <rostedt@gollum.(none)>
> ---
>  arch/powerpc/kernel/Makefile |    1 +
>  arch/powerpc/lib/Makefile    |    3 +++
>  2 files changed, 4 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
> index 92673b4..d17edb4 100644
> --- a/arch/powerpc/kernel/Makefile
> +++ b/arch/powerpc/kernel/Makefile
> @@ -17,6 +17,7 @@ ifdef CONFIG_FUNCTION_TRACER
>  CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog
>  CFLAGS_REMOVE_prom_init.o = -pg -mno-sched-epilog
>  CFLAGS_REMOVE_btext.o = -pg -mno-sched-epilog
> +CFLAGS_REMOVE_prom.o = -pg -mno-sched-epilog
>  
>  ifdef CONFIG_DYNAMIC_FTRACE
>  # dynamic ftrace setup.
> diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
> index d69912c..8db3527 100644
> --- a/arch/powerpc/lib/Makefile
> +++ b/arch/powerpc/lib/Makefile
> @@ -6,6 +6,9 @@ ifeq ($(CONFIG_PPC64),y)
>  EXTRA_CFLAGS		+= -mno-minimal-toc
>  endif
>  
> +CFLAGS_REMOVE_code-patching.o = -pg
> +CFLAGS_REMOVE_feature-fixups.o = -pg
> +
>  obj-y			:= string.o alloc.o \
>  			   checksum_$(CONFIG_WORD_SIZE).o
>  obj-$(CONFIG_PPC32)	+= div64.o copy_32.o crtsavres.o
> -- 
> 1.5.6.5
> 
> -- 
> 
>