[lttng-modules.git] / Makefile

# SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)

ifneq ($(KERNELRELEASE),)

# This part of the Makefile is used when called by the kernel build system
# and defines the modules to be built.

obj-$(CONFIG_LTTNG) += src/

else # KERNELRELEASE

# This part of the Makefile is used when the 'make' command is runned in the
# base directory of the lttng-modules sources. It sets some environment and
# calls the kernel build system to build the actual modules.

KERNELDIR ?= /lib/modules/$(shell uname -r)/build
PWD := $(shell pwd)

# Experimental bitwise enum defaults to disabled.
CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM ?= n

# Emulate Kconfig behavior of setting defines for config options.
LKCPPFLAGS = $(KCPPFLAGS)
ifeq ($(CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM),y)
LKCPPFLAGS += -DCONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM=y
endif

default: modules

modules:
	$(MAKE) -C $(KERNELDIR) M=$(PWD)/src \
		CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
		KCPPFLAGS='$(LKCPPFLAGS)' \
		modules

modules_install:
	$(MAKE) -C $(KERNELDIR) M=$(PWD)/src \
		CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
		KCPPFLAGS='$(LKCPPFLAGS)' \
		modules_install

clean:
	$(MAKE) -C $(KERNELDIR) M=$(PWD)/src clean

# The following targets are used for development and debugging. They are not
# part of the build system.
%.i: %.c
	$(MAKE) -C $(KERNELDIR) M=$(PWD) \
		CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
		KCPPFLAGS='$(LKCPPFLAGS)' \
		$@

%.o: %.c
	$(MAKE) -C $(KERNELDIR) M=$(PWD) \
		CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
		KCPPFLAGS='$(LKCPPFLAGS)' \
		$@

endif # KERNELRELEASE
Commit	Line	Data
	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
	19	# Experimental bitwise enum defaults to disabled.
	20	CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM ?= n
	21
	22	# Emulate Kconfig behavior of setting defines for config options.
	23	LKCPPFLAGS = $(KCPPFLAGS)
	24	ifeq ($(CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM),y)
	25	LKCPPFLAGS += -DCONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM=y
	26	endif
	27
	28	default: modules
	29
	30	modules:
	31	$(MAKE) -C $(KERNELDIR) M=$(PWD)/src \
	32	CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
	33	KCPPFLAGS='$(LKCPPFLAGS)' \
	34	modules
	35
	36	modules_install:
	37	$(MAKE) -C $(KERNELDIR) M=$(PWD)/src \
	38	CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
	39	KCPPFLAGS='$(LKCPPFLAGS)' \
	40	modules_install
	41
	42	clean:
	43	$(MAKE) -C $(KERNELDIR) M=$(PWD)/src clean
	44
	45	# The following targets are used for development and debugging. They are not
	46	# part of the build system.
	47	%.i: %.c
	48	$(MAKE) -C $(KERNELDIR) M=$(PWD) \
	49	CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
	50	KCPPFLAGS='$(LKCPPFLAGS)' \
	51	$@
	52
	53	%.o: %.c
	54	$(MAKE) -C $(KERNELDIR) M=$(PWD) \
	55	CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
	56	KCPPFLAGS='$(LKCPPFLAGS)' \
	57	$@
	58
	59	endif # KERNELRELEASE