-#
-# Makefile for the LTT objects.
-#
+# SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
ifneq ($(KERNELRELEASE),)
-ifeq ($(CONFIG_TRACEPOINTS),)
+# This part of the Makefile is used when called by the kernel build system
+# and defines the modules to be built.
-$(error You need to enable CONFIG_TRACEPOINTS in kernel!)
+obj-$(CONFIG_LTTNG) += src/
-endif #CONFIG_TRACEPOINTS
-
-ifneq ($(CONFIG_TRACEPOINTS),)
-
-obj-m += lttng-ring-buffer-client-discard.o
-obj-m += lttng-ring-buffer-client-overwrite.o
-obj-m += lttng-ring-buffer-metadata-client.o
-obj-m += lttng-ring-buffer-client-mmap-discard.o
-obj-m += lttng-ring-buffer-client-mmap-overwrite.o
-obj-m += lttng-ring-buffer-metadata-mmap-client.o
-
-obj-m += lttng-tracer.o
-lttng-tracer-objs := lttng-events.o lttng-abi.o \
- lttng-probes.o lttng-context.o \
- lttng-context-pid.o lttng-context-procname.o \
- lttng-context-prio.o lttng-context-nice.o \
- lttng-context-vpid.o lttng-context-tid.o \
- lttng-context-vtid.o lttng-context-ppid.o \
- lttng-context-vppid.o lttng-calibrate.o \
- lttng-context-hostname.o wrapper/random.o
-
-obj-m += lttng-statedump.o
-lttng-statedump-objs := lttng-statedump-impl.o wrapper/irqdesc.o \
- wrapper/fdtable.o
-
-ifneq ($(CONFIG_HAVE_SYSCALL_TRACEPOINTS),)
-lttng-tracer-objs += lttng-syscalls.o probes/lttng-probe-user.o
-endif # CONFIG_HAVE_SYSCALL_TRACEPOINTS
-
-ifneq ($(CONFIG_PERF_EVENTS),)
-lttng-tracer-objs += $(shell \
- if [ $(VERSION) -ge 3 \
- -o \( $(VERSION) -eq 2 -a $(PATCHLEVEL) -ge 6 -a $(SUBLEVEL) -ge 34 \) ] ; then \
- echo "lttng-context-perf-counters.o" ; fi;)
-endif # CONFIG_PERF_EVENTS
+else # KERNELRELEASE
-obj-m += probes/
-obj-m += lib/
+# 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.
-endif # CONFIG_TRACEPOINTS
+KERNELDIR ?= /lib/modules/$(shell uname -r)/build
+PWD := $(shell pwd)
+CFLAGS = $(EXTCFLAGS)
-else # KERNELRELEASE
- KERNELDIR ?= /lib/modules/$(shell uname -r)/build
- PWD := $(shell pwd)
- CFLAGS = $(EXTCFLAGS)
+default: modules
-default:
- $(MAKE) -C $(KERNELDIR) M=$(PWD) modules
+modules:
+ $(MAKE) -C $(KERNELDIR) M=$(PWD)/src CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m modules
modules_install:
- $(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install
+ $(MAKE) -C $(KERNELDIR) M=$(PWD)/src CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m modules_install
clean:
- $(MAKE) -C $(KERNELDIR) M=$(PWD) clean
+ $(MAKE) -C $(KERNELDIR) M=$(PWD)/src clean
%.i: %.c
- $(MAKE) -C $(KERNELDIR) M=$(PWD) $@
+ $(MAKE) -C $(KERNELDIR) M=$(PWD)/src CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m $@
+
endif # KERNELRELEASE