2 # Makefile for the LTT objects.
5 ifneq ($(KERNELRELEASE
),)
7 # This part of the Makefile is used when called by the kernel build system
8 # and defines the modules to be built.
10 ifneq ($(CONFIG_TRACEPOINTS
),)
12 TOP_LTTNG_MODULES_DIR
:= $(shell dirname
$(lastword
$(MAKEFILE_LIST
)))
14 lttng_check_linux_version
= $(shell pwd
)/include/linux
/version.h
15 lttng_check_generated_linux_version
= $(shell pwd
)/include/generated
/uapi
/linux
/version.h
18 # Check for stale version.h, which can be a leftover from an old Linux
19 # kernel tree moved to a newer kernel version, only pruned by make
22 ifneq ($(wildcard $(lttng_check_linux_version
)),)
23 ifneq ($(wildcard $(lttng_check_generated_linux_version
)),)
24 $(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
)
28 include $(TOP_LTTNG_MODULES_DIR
)/Makefile.ABI.workarounds
30 ccflags-y
+= -I
$(TOP_LTTNG_MODULES_DIR
)
32 obj-
$(CONFIG_LTTNG
) += lttng-ring-buffer-client-discard.o
33 obj-
$(CONFIG_LTTNG
) += lttng-ring-buffer-client-overwrite.o
34 obj-
$(CONFIG_LTTNG
) += lttng-ring-buffer-metadata-client.o
35 obj-
$(CONFIG_LTTNG
) += lttng-ring-buffer-client-mmap-discard.o
36 obj-
$(CONFIG_LTTNG
) += lttng-ring-buffer-client-mmap-overwrite.o
37 obj-
$(CONFIG_LTTNG
) += lttng-ring-buffer-metadata-mmap-client.o
38 obj-
$(CONFIG_LTTNG
) += lttng-clock.o
40 obj-
$(CONFIG_LTTNG
) += lttng-tracer.o
42 lttng-tracer-objs
:= lttng-events.o lttng-abi.o \
43 lttng-probes.o lttng-context.o \
44 lttng-context-pid.o lttng-context-procname.o \
45 lttng-context-prio.o lttng-context-nice.o \
46 lttng-context-vpid.o lttng-context-tid.o \
47 lttng-context-vtid.o lttng-context-ppid.o \
48 lttng-context-vppid.o lttng-context-cpu-id.o \
49 lttng-context-interruptible.o \
50 lttng-context-need-reschedule.o lttng-calibrate.o \
51 lttng-context-hostname.o wrapper
/random.o \
52 probes
/lttng.o wrapper
/trace-clock.o \
53 wrapper
/page_alloc.o \
55 lttng-filter.o lttng-filter-interpreter.o \
56 lttng-filter-specialize.o \
57 lttng-filter-validator.o \
58 probes
/lttng-probe-user.o
60 ifneq ($(CONFIG_HAVE_SYSCALL_TRACEPOINTS
),)
61 lttng-tracer-objs
+= lttng-syscalls.o
62 endif # CONFIG_HAVE_SYSCALL_TRACEPOINTS
64 ifneq ($(CONFIG_PERF_EVENTS
),)
65 lttng-tracer-objs
+= $(shell \
66 if
[ $(VERSION
) -ge
3 \
67 -o \
( $(VERSION
) -eq
2 -a
$(PATCHLEVEL
) -ge
6 -a
$(SUBLEVEL
) -ge
33 \
) ] ; then \
68 echo
"lttng-context-perf-counters.o" ; fi
;)
69 endif # CONFIG_PERF_EVENTS
71 ifneq ($(CONFIG_PREEMPT_RT_FULL
),)
72 lttng-tracer-objs
+= lttng-context-migratable.o
73 lttng-tracer-objs
+= lttng-context-preemptible.o
74 endif # CONFIG_PREEMPT_RT_FULL
76 ifneq ($(CONFIG_PREEMPT
),)
77 lttng-tracer-objs
+= lttng-context-preemptible.o
80 lttng-tracer-objs
+= $(shell \
81 if
[ $(VERSION
) -ge
4 \
82 -o \
( $(VERSION
) -eq
3 -a
$(PATCHLEVEL
) -ge
15 -a
$(SUBLEVEL
) -ge
0 \
) ] ; then \
83 echo
"lttng-tracepoint.o" ; fi
;)
85 obj-
$(CONFIG_LTTNG
) += lttng-statedump.o
86 lttng-statedump-objs
:= lttng-statedump-impl.o wrapper
/irqdesc.o \
89 obj-
$(CONFIG_LTTNG
) += probes
/
90 obj-
$(CONFIG_LTTNG
) += lib
/
92 endif # CONFIG_TRACEPOINTS
96 # This part of the Makefile is used when the 'make' command is runned in the
97 # base directory of the lttng-modules sources. It sets some environment and
98 # calls the kernel build system to build the actual modules.
100 KERNELDIR ?
= /lib
/modules
/$(shell uname
-r
)/build
102 CFLAGS
= $(EXTCFLAGS
)
105 $(MAKE
) -C
$(KERNELDIR
) M
=$(PWD
) CONFIG_LTTNG
=m modules
108 $(MAKE
) -C
$(KERNELDIR
) M
=$(PWD
) CONFIG_LTTNG
=m modules_install
111 $(MAKE
) -C
$(KERNELDIR
) M
=$(PWD
) clean
114 $(MAKE
) -C
$(KERNELDIR
) M
=$(PWD
) CONFIG_LTTNG
=m
$@
116 endif # KERNELRELEASE