CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64
endif
+ifdef CONFIG_MPROFILE_KERNEL
+ ifeq ($(shell $(srctree)/arch/powerpc/scripts/gcc-check-mprofile-kernel.sh $(CC) -I$(srctree)/include -D__KERNEL__),OK)
+ CC_FLAGS_FTRACE := -pg -mprofile-kernel
+ KBUILD_CPPFLAGS += -DCC_USING_MPROFILE_KERNEL
+ else
+ # If the user asked for mprofile-kernel but the toolchain doesn't
+ # support it, emit a warning and deliberately break the build later
+ # with mprofile-kernel-not-supported. We would prefer to make this an
+ # error right here, but then the user would never be able to run
+ # oldconfig to change their configuration.
+ $(warning Compiler does not support mprofile-kernel, set CONFIG_DISABLE_MPROFILE_KERNEL)
+ CC_FLAGS_FTRACE := -mprofile-kernel-not-supported
+ endif
+endif
+
CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell)
CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4)
CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5)