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    Subject[PATCH 12/12] powerpc/ftrace: Disable profiling for some files
    Date
    From: Torsten Duwe <duwe@lst.de>

    Using -mprofile-kernel on early boot code not only confuses the
    checker but is also useless, as the infrastructure is not yet in
    place. Proceed like with -pg (remove it from CFLAGS), equally with
    time.o, ftrace and its helper files.

    * arch/powerpc/kernel/Makefile,
    arch/powerpc/lib/Makefile:
    - remove -mprofile-kernel from low level, boot code and
    code-patching objects' CFLAGS.

    Signed-off-by: Torsten Duwe <duwe@suse.de>
    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
    ---
    arch/powerpc/kernel/Makefile | 12 ++++++------
    arch/powerpc/lib/Makefile | 4 ++--
    2 files changed, 8 insertions(+), 8 deletions(-)

    diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
    index 794f22adf99d..44667fde7ae4 100644
    --- a/arch/powerpc/kernel/Makefile
    +++ b/arch/powerpc/kernel/Makefile
    @@ -16,14 +16,14 @@ endif

    ifdef CONFIG_FUNCTION_TRACER
    # Do not trace early boot code
    -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
    +CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog -mprofile-kernel
    +CFLAGS_REMOVE_prom_init.o = -pg -mno-sched-epilog -mprofile-kernel
    +CFLAGS_REMOVE_btext.o = -pg -mno-sched-epilog -mprofile-kernel
    +CFLAGS_REMOVE_prom.o = -pg -mno-sched-epilog -mprofile-kernel
    # do not trace tracer code
    -CFLAGS_REMOVE_ftrace.o = -pg -mno-sched-epilog
    +CFLAGS_REMOVE_ftrace.o = -pg -mno-sched-epilog -mprofile-kernel
    # timers used by tracing
    -CFLAGS_REMOVE_time.o = -pg -mno-sched-epilog
    +CFLAGS_REMOVE_time.o = -pg -mno-sched-epilog -mprofile-kernel
    endif

    obj-y := cputable.o ptrace.o syscalls.o \
    diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
    index a47e14277fd8..98e22b2d7bec 100644
    --- a/arch/powerpc/lib/Makefile
    +++ b/arch/powerpc/lib/Makefile
    @@ -6,8 +6,8 @@ subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror

    ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC)

    -CFLAGS_REMOVE_code-patching.o = -pg
    -CFLAGS_REMOVE_feature-fixups.o = -pg
    +CFLAGS_REMOVE_code-patching.o = -pg -mprofile-kernel
    +CFLAGS_REMOVE_feature-fixups.o = -pg -mprofile-kernel

    obj-y += string.o alloc.o crtsavres.o ppc_ksyms.o code-patching.o \
    feature-fixups.o
    --
    2.5.0
    \
     
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