| 1 | # SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) |
| 2 | |
| 3 | ifneq ($(KERNELRELEASE),) |
| 4 | |
| 5 | # This part of the Makefile is used when called by the kernel build system |
| 6 | # and defines the modules to be built. |
| 7 | |
| 8 | obj-m += lttng-syscalls-extractor.o |
| 9 | |
| 10 | else # KERNELRELEASE |
| 11 | |
| 12 | # This part of the Makefile is used when the 'make' command is runned in the |
| 13 | # base directory of the lttng-modules sources. It sets some environment and |
| 14 | # calls the kernel build system to build the actual modules. |
| 15 | |
| 16 | KERNELDIR ?= /lib/modules/$(shell uname -r)/build |
| 17 | PWD := $(shell pwd) |
| 18 | |
| 19 | default: modules |
| 20 | |
| 21 | modules: |
| 22 | $(MAKE) -C $(KERNELDIR) M=$(PWD) modules |
| 23 | |
| 24 | clean: |
| 25 | $(MAKE) -C $(KERNELDIR) M=$(PWD) clean |
| 26 | |
| 27 | %.i: %.c |
| 28 | $(MAKE) -C $(KERNELDIR) M=$(PWD) $@ |
| 29 | |
| 30 | endif # KERNELRELEASE |