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    SubjectRe: [PATCH 6/6] gcov: architecture specific compile flag adjustments
    Andrew Morton wrote:
    > On Mon, 02 Jun 2008 15:34:47 +0200
    > Peter Oberparleiter <peter.oberparleiter@de.ibm.com> wrote:
    >
    >> Exclude code from profiling which is not linked to the main kernel or
    >> which is running in a context not compatible with the assumptions made
    >> by gcc's profiling code.
    >
    > powerpc allmodconfig fails with
    >
    > Error: External symbol '__gcov_init' referenced from prom_init.c
    > Error: External symbol '__gcov_merge_add' referenced from prom_init.c

    --
    From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>

    Fix for gcov patch fallout:

    powerpc allmodconfig fails with

    Error: External symbol '__gcov_init' referenced from prom_init.c
    Error: External symbol '__gcov_merge_add' referenced from prom_init.c

    Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
    ---
    arch/powerpc/kernel/Makefile | 1 +
    1 files changed, 1 insertion(+)

    Index: linux-2.6.26-rc5-mm2/arch/powerpc/kernel/Makefile
    ===================================================================
    --- linux-2.6.26-rc5-mm2.orig/arch/powerpc/kernel/Makefile
    +++ linux-2.6.26-rc5-mm2/arch/powerpc/kernel/Makefile
    @@ -11,6 +11,7 @@ ifeq ($(CONFIG_PPC32),y)
    CFLAGS_prom_init.o += -fPIC
    CFLAGS_btext.o += -fPIC
    endif
    +GCOV_prom_init.o := n

    ifdef CONFIG_FTRACE
    # Do not trace early boot code

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