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    SubjectRe: [PATCH 04/10] ARM: ftrace: allow building without frame pointers
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    On Sun, 2010-02-14 at 01:18 +0530, Rabin Vincent wrote:
    > With a new enough GCC, ARM function tracing can be supported without the
    > need for frame pointers. This is essential for Thumb-2 support, since
    > frame pointers aren't available then.
    >
    > Signed-off-by: Rabin Vincent <rabin@rab.in>


    >
    > diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
    > index 6c22d8a..7468ffe 100644
    > --- a/kernel/trace/Kconfig
    > +++ b/kernel/trace/Kconfig
    > @@ -126,7 +126,7 @@ if FTRACE
    > config FUNCTION_TRACER
    > bool "Kernel Function Tracer"
    > depends on HAVE_FUNCTION_TRACER
    > - select FRAME_POINTER
    > + select FRAME_POINTER if (!ARM_UNWIND)
    > select KALLSYMS
    > select GENERIC_TRACER
    > select CONTEXT_SWITCH_TRACER

    Ah, evolution is keeping these patches out of order, so I did not see
    this change before commenting about the change to the Makefile.

    A better comment is needed in the Makefile.

    -- Steve




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