Viewing: Kbuild
# SPDX-License-Identifier: GPL-2.0
#
# This file is part of Lustre, http://www.lustre.org/
#
# There are four ways this Makefile can be called:
#
# 1. As a subdirectory from the toplevel, for automake
# 2. A wrapper around the kernel's makefile when building modules, to
# possibly override the .config file
# 3. At configure time, as the toplevel module dir for building
# kernel tests
#
ifeq ($(PATCHLEVEL),)
ifeq ($(LUSTRE_LINUX_CONFIG),)
# case #1
include autoMakefile
else
# case #2
# Note that this comes from make -C $LINUX -f $LUSTRE/build/Makefile
# so "include Makefile" below includes $LINUX/Makefile, not this file
include $(LUSTRE_LINUX_CONFIG)
include Makefile
ifeq ($(DEQUOTE_CC_VERSION_TEXT),yes)
CONFIG_CC_VERSION_TEXT=$(shell echo ${CONFIG_CC_VERSION_TEXT:1:-1})
endif
endif # LUSTRE_LINUX_CONFIG
else # PATCHLEVEL
ifeq ($(DEQUOTE_CC_VERSION_TEXT),yes)
CONFIG_CC_VERSION_TEXT=$(shell echo ${CONFIG_CC_VERSION_TEXT:1:-1})
endif
# case #3
ifneq ($(LUSTRE_KERNEL_TEST),)
# extra-y works prior to 5.10
extra-y = $(LUSTRE_KERNEL_TEST)
# always-y works since 5.6
always-y = $(LUSTRE_KERNEL_TEST)
# always works for SUSE SP3 LTSS kernel
always = $(LUSTRE_KERNEL_TEST)
endif
obj-m := conftest.o
endif # PATCHLEVEL
