| 1 | # SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) |
| 2 | |
| 3 | ifneq ($(KERNELRELEASE),) |
| 4 | |
| 5 | # This part of the Makefile is used when called by the kernel build system |
| 6 | # and defines the modules to be built. |
| 7 | |
| 8 | obj-$(CONFIG_LTTNG) += src/ |
| 9 | |
| 10 | else # KERNELRELEASE |
| 11 | |
| 12 | # This part of the Makefile is used when the 'make' command is runned in the |
| 13 | # base directory of the lttng-modules sources. It sets some environment and |
| 14 | # calls the kernel build system to build the actual modules. |
| 15 | |
| 16 | KERNELDIR ?= /lib/modules/$(shell uname -r)/build |
| 17 | PWD := $(shell pwd) |
| 18 | CFLAGS = $(EXTCFLAGS) |
| 19 | |
| 20 | default: modules |
| 21 | |
| 22 | modules: |
| 23 | $(MAKE) -C $(KERNELDIR) M=$(PWD)/src CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m modules |
| 24 | |
| 25 | modules_install: |
| 26 | $(MAKE) -C $(KERNELDIR) M=$(PWD)/src CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m modules_install |
| 27 | |
| 28 | clean: |
| 29 | $(MAKE) -C $(KERNELDIR) M=$(PWD)/src clean |
| 30 | |
| 31 | # The following targets are used for development and debugging. They are not |
| 32 | # part of the build system. |
| 33 | %.i: %.c |
| 34 | $(MAKE) -C $(KERNELDIR) M=$(PWD) CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m $@ |
| 35 | |
| 36 | %.o: %.c |
| 37 | $(MAKE) -C $(KERNELDIR) M=$(PWD) CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m $@ |
| 38 | |
| 39 | endif # KERNELRELEASE |