buildroot

################################################################################

#

# selftests

#

################################################################################

​

LINUX_TOOLS += selftests

​

ifeq ($(KERNEL_ARCH),x86_64)

SELFTESTS_ARCH=x86

else

ifeq ($(KERNEL_ARCH),i386)

SELFTESTS_ARCH=x86

else

SELFTESTS_ARCH=$(KERNEL_ARCH)

endif

endif

​

SELFTESTS_DEPENDENCIES = libcap-ng popt

​

SELFTESTS_MAKE_FLAGS = \

    $(LINUX_MAKE_FLAGS) \

    ARCH=$(SELFTESTS_ARCH)

​

# O must be redefined here to overwrite the one used by Buildroot for

# out of tree build. We build the selftests in $(@D)/tools/selftests and

# not just $(@D) so that it isn't built in the root directory of the kernel

# sources.

#

# The headers_install step here is important as some kernel selftests use a

# hardcoded CFLAGS to find kernel headers e.g:

# CFLAGS += -I../../../../usr/include/

# The headers_install target will install the kernel headers locally inside

# the Linux build dir

define SELFTESTS_BUILD_CMDS

    $(TARGET_MAKE_ENV) $(MAKE1) -C $(@D) $(SELFTESTS_MAKE_FLAGS) \

        headers_install

    $(TARGET_MAKE_ENV) $(MAKE1) -C $(@D)/tools/testing/selftests \

        $(SELFTESTS_MAKE_FLAGS) O=$(@D)/tools/testing/selftests

endef

​

define SELFTESTS_INSTALL_TARGET_CMDS

    $(TARGET_MAKE_ENV) $(MAKE1) -C $(@D)/tools/testing/selftests \

        $(SELFTESTS_MAKE_FLAGS) O=$(@D)/tools/testing/selftests \

        INSTALL_PATH=$(TARGET_DIR)/usr/lib/kselftests install

endef