+ # This part of the Makefile is used when called by the kernel build system
+ # and defines the modules to be built.
+
+ ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
+ ifeq ($(CONFIG_TRACEPOINTS),)
+ $(error The option CONFIG_TRACEPOINTS needs to be enabled in your kernel configuration)
+ endif # CONFIG_TRACEPOINTS
+ endif # ifdef CONFIG_LOCALVERSION
+
+ TOP_LTTNG_MODULES_DIR := $(shell dirname $(lastword $(MAKEFILE_LIST)))
+
+ lttng_check_linux_version = $(shell pwd)/include/linux/version.h
+ lttng_check_generated_linux_version = $(shell pwd)/include/generated/uapi/linux/version.h
+
+ #
+ # Check for stale version.h, which can be a leftover from an old Linux
+ # kernel tree moved to a newer kernel version, only pruned by make
+ # distclean.
+ #
+ ifneq ($(wildcard $(lttng_check_linux_version)),)
+ ifneq ($(wildcard $(lttng_check_generated_linux_version)),)
+ $(error Duplicate version.h files found in $(lttng_check_linux_version) and $(lttng_check_generated_linux_version). Consider running make distclean on your kernel, or removing the stale $(lttng_check_linux_version) file)
+ endif
+ endif
+
+ include $(TOP_LTTNG_MODULES_DIR)/Kbuild.common
+
+ ccflags-y += -I$(TOP_LTTNG_MODULES_DIR)
+
+ obj-$(CONFIG_LTTNG) += lttng-ring-buffer-client-discard.o
+ obj-$(CONFIG_LTTNG) += lttng-ring-buffer-client-overwrite.o
+ obj-$(CONFIG_LTTNG) += lttng-ring-buffer-metadata-client.o
+ obj-$(CONFIG_LTTNG) += lttng-ring-buffer-client-mmap-discard.o
+ obj-$(CONFIG_LTTNG) += lttng-ring-buffer-client-mmap-overwrite.o
+ obj-$(CONFIG_LTTNG) += lttng-ring-buffer-metadata-mmap-client.o
+ obj-$(CONFIG_LTTNG) += lttng-clock.o
+
+ obj-$(CONFIG_LTTNG) += lttng-tracer.o
+
+ obj-$(CONFIG_LTTNG) += lttng-wrapper.o
+
+ lttng-tracer-objs := lttng-events.o lttng-abi.o lttng-string-utils.o \
+ lttng-probes.o lttng-context.o \
+ lttng-context-pid.o lttng-context-procname.o \
+ lttng-context-prio.o lttng-context-nice.o \
+ lttng-context-vpid.o lttng-context-tid.o \
+ lttng-context-vtid.o lttng-context-ppid.o \
+ lttng-context-vppid.o lttng-context-cpu-id.o \
+ lttng-context-uid.o \
+ lttng-context-euid.o \
+ lttng-context-suid.o \
+ lttng-context-gid.o \
+ lttng-context-egid.o \
+ lttng-context-sgid.o \
+ lttng-context-vuid.o \
+ lttng-context-veuid.o \
+ lttng-context-vsuid.o \
+ lttng-context-vgid.o \
+ lttng-context-vegid.o \
+ lttng-context-vsgid.o \
+ lttng-context-interruptible.o \
+ lttng-context-need-reschedule.o \
+ lttng-context-callstack.o lttng-calibrate.o \
+ lttng-context-hostname.o \
+ probes/lttng.o \
+ lttng-tracker-id.o \
+ lttng-filter.o lttng-filter-interpreter.o \
+ lttng-filter-specialize.o \
+ lttng-filter-validator.o \
+ probes/lttng-probe-user.o \
+ lttng-tp-mempool.o \
+
+ lttng-wrapper-objs := wrapper/page_alloc.o \
+ wrapper/random.o \
+ wrapper/trace-clock.o \
+ wrapper/kallsyms.o \
+ wrapper/irqdesc.o \
+ wrapper/fdtable.o \
+ lttng-wrapper-impl.o
+
+ ifneq ($(CONFIG_HAVE_SYSCALL_TRACEPOINTS),)
+ lttng-tracer-objs += lttng-syscalls.o
+ endif # CONFIG_HAVE_SYSCALL_TRACEPOINTS
+
+ ifneq ($(CONFIG_PERF_EVENTS),)
+ lttng-tracer-objs += lttng-context-perf-counters.o
+ endif # CONFIG_PERF_EVENTS
+
+ ifneq ($(CONFIG_PREEMPT_RT_FULL),)
+ lttng-tracer-objs += lttng-context-migratable.o
+ lttng-tracer-objs += lttng-context-preemptible.o
+ endif # CONFIG_PREEMPT_RT_FULL