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    Subject[PATCH 6/6] gcov: architecture specific compile flag adjustments
    From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>

    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.

    Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
    ---
    arch/arm/boot/compressed/Makefile | 1 +
    arch/powerpc/kernel/vdso32/Makefile | 1 +
    arch/powerpc/kernel/vdso64/Makefile | 1 +
    arch/ppc/boot/Makefile | 1 +
    arch/ppc/boot/common/Makefile | 1 +
    arch/ppc/boot/simple/Makefile | 1 +
    arch/x86/boot/Makefile | 1 +
    arch/x86/boot/compressed/Makefile | 1 +
    arch/x86/kernel/acpi/realmode/Makefile | 1 +
    9 files changed, 9 insertions(+)

    Index: linux-2.6.26-rc4/arch/arm/boot/compressed/Makefile
    ===================================================================
    --- linux-2.6.26-rc4.orig/arch/arm/boot/compressed/Makefile
    +++ linux-2.6.26-rc4/arch/arm/boot/compressed/Makefile
    @@ -7,6 +7,7 @@
    HEAD = head.o
    OBJS = misc.o
    FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c
    +GCOV := n

    #
    # Architecture dependencies
    Index: linux-2.6.26-rc4/arch/x86/boot/compressed/Makefile
    ===================================================================
    --- linux-2.6.26-rc4.orig/arch/x86/boot/compressed/Makefile
    +++ linux-2.6.26-rc4/arch/x86/boot/compressed/Makefile
    @@ -12,6 +12,7 @@ cflags-$(CONFIG_X86_64) := -mcmodel=smal
    KBUILD_CFLAGS += $(cflags-y)
    KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
    KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
    +GCOV := n

    KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__

    Index: linux-2.6.26-rc4/arch/ppc/boot/Makefile
    ===================================================================
    --- linux-2.6.26-rc4.orig/arch/ppc/boot/Makefile
    +++ linux-2.6.26-rc4/arch/ppc/boot/Makefile
    @@ -16,6 +16,7 @@
    # KBUILD_CFLAGS used when building rest of boot (takes effect recursively)
    KBUILD_CFLAGS += -fno-builtin -D__BOOTER__ -Iarch/$(ARCH)/boot/include
    HOSTCFLAGS += -Iarch/$(ARCH)/boot/include
    +GCOV := n

    BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd

    Index: linux-2.6.26-rc4/arch/ppc/boot/common/Makefile
    ===================================================================
    --- linux-2.6.26-rc4.orig/arch/ppc/boot/common/Makefile
    +++ linux-2.6.26-rc4/arch/ppc/boot/common/Makefile
    @@ -5,6 +5,7 @@
    # Tom Rini January 2001
    #

    +GCOV := n
    lib-y := string.o util.o misc-common.o \
    serial_stub.o bootinfo.o
    lib-$(CONFIG_SERIAL_8250_CONSOLE) += ns16550.o
    Index: linux-2.6.26-rc4/arch/ppc/boot/simple/Makefile
    ===================================================================
    --- linux-2.6.26-rc4.orig/arch/ppc/boot/simple/Makefile
    +++ linux-2.6.26-rc4/arch/ppc/boot/simple/Makefile
    @@ -21,6 +21,7 @@
    # XXX_memory.o file for this to work, as well as editing the
    # misc-$(CONFIG_MACHINE) variable.

    +GCOV := n
    boot := arch/ppc/boot
    common := $(boot)/common
    utils := $(boot)/utils
    Index: linux-2.6.26-rc4/arch/x86/boot/Makefile
    ===================================================================
    --- linux-2.6.26-rc4.orig/arch/x86/boot/Makefile
    +++ linux-2.6.26-rc4/arch/x86/boot/Makefile
    @@ -71,6 +71,7 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os
    $(call cc-option, -mpreferred-stack-boundary=2)
    KBUILD_CFLAGS += $(call cc-option,-m32)
    KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
    +GCOV := n

    $(obj)/zImage: IMAGE_OFFSET := 0x1000
    $(obj)/zImage: asflags-y := $(SVGA_MODE) $(RAMDISK)
    Index: linux-2.6.26-rc4/arch/x86/kernel/acpi/realmode/Makefile
    ===================================================================
    --- linux-2.6.26-rc4.orig/arch/x86/kernel/acpi/realmode/Makefile
    +++ linux-2.6.26-rc4/arch/x86/kernel/acpi/realmode/Makefile
    @@ -42,6 +42,7 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os
    $(call cc-option, -mpreferred-stack-boundary=2)
    KBUILD_CFLAGS += $(call cc-option, -m32)
    KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
    +GCOV := n

    WAKEUP_OBJS = $(addprefix $(obj)/,$(wakeup-y))

    Index: linux-2.6.26-rc4/arch/powerpc/kernel/vdso32/Makefile
    ===================================================================
    --- linux-2.6.26-rc4.orig/arch/powerpc/kernel/vdso32/Makefile
    +++ linux-2.6.26-rc4/arch/powerpc/kernel/vdso32/Makefile
    @@ -17,6 +17,7 @@ EXTRA_CFLAGS := -shared -fno-common -fno
    EXTRA_CFLAGS += -nostdlib -Wl,-soname=linux-vdso32.so.1 \
    $(call ld-option, -Wl$(comma)--hash-style=sysv)
    EXTRA_AFLAGS := -D__VDSO32__ -s
    +GCOV := n

    obj-y += vdso32_wrapper.o
    extra-y += vdso32.lds
    Index: linux-2.6.26-rc4/arch/powerpc/kernel/vdso64/Makefile
    ===================================================================
    --- linux-2.6.26-rc4.orig/arch/powerpc/kernel/vdso64/Makefile
    +++ linux-2.6.26-rc4/arch/powerpc/kernel/vdso64/Makefile
    @@ -11,6 +11,7 @@ EXTRA_CFLAGS := -shared -fno-common -fno
    EXTRA_CFLAGS += -nostdlib -Wl,-soname=linux-vdso64.so.1 \
    $(call ld-option, -Wl$(comma)--hash-style=sysv)
    EXTRA_AFLAGS := -D__VDSO64__ -s
    +GCOV := n

    obj-y += vdso64_wrapper.o
    extra-y += vdso64.lds




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