1 # SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
3 TOP_LTTNG_MODULES_DIR := $(shell dirname $(lastword $(MAKEFILE_LIST)))/..
5 include $(TOP_LTTNG_MODULES_DIR)/Kbuild.common
7 ccflags-y += -I$(TOP_LTTNG_MODULES_DIR)
9 obj-$(CONFIG_LTTNG) += lttng-probe-sched.o
10 obj-$(CONFIG_LTTNG) += lttng-probe-irq.o
11 obj-$(CONFIG_LTTNG) += lttng-probe-timer.o
12 obj-$(CONFIG_LTTNG) += lttng-probe-kmem.o
13 obj-$(CONFIG_LTTNG) += lttng-probe-module.o
14 obj-$(CONFIG_LTTNG) += lttng-probe-power.o
15 obj-$(CONFIG_LTTNG) += lttng-probe-statedump.o
17 ifneq ($(CONFIG_NET_9P),)
18 obj-$(CONFIG_LTTNG) += $(shell \
19 if [ $(VERSION) -ge 4 \
20 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -eq 10 \) ] ; then \
21 echo "lttng-probe-9p.o" ; fi;)
24 i2c_dep = $(srctree)/include/trace/events/i2c.h
25 ifneq ($(wildcard $(i2c_dep)),)
26 obj-$(CONFIG_LTTNG) += lttng-probe-i2c.o
29 ifneq ($(CONFIG_KVM),)
30 obj-$(CONFIG_LTTNG) += lttng-probe-kvm.o
31 ifneq ($(CONFIG_X86),)
32 ifneq ($(CONFIG_KALLSYMS_ALL),)
33 kvm_dep_lapic = $(srctree)/arch/x86/kvm/lapic.h
34 kvm_dep_lapic_check = $(wildcard $(kvm_dep_lapic))
35 ifneq ($(kvm_dep_lapic_check),)
36 # search for iodev.h in any of its known locations
37 kvm_dep_iodev = $(srctree)/virt/kvm/iodev.h $(srctree)/include/kvm/iodev.h
38 kvm_dep_iodev_check = $(wildcard $(kvm_dep_iodev))
39 ifneq ($(kvm_dep_iodev_check),)
40 kvm_dep_emulate = $(srctree)/arch/x86/kvm/kvm_emulate.h
41 kvm_dep_emulate_wildcard = $(wildcard $(kvm_dep_emulate))
42 kvm_dep_emulate_check = $(shell \
43 if [ \( $(VERSION) -ge 6 \
44 -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -eq 7 \) \) -a \
45 -z "$(kvm_dep_emulate_wildcard)" ] ; then \
50 ifeq ($(kvm_dep_emulate_check),ok)
51 CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm \
52 -I$(srctree)/arch/x86/kvm
53 CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm
54 obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
55 obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
56 else # ($(kvm_dep_emulate_check),ok)
57 $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
58 endif # ($(kvm_dep_emulate_check),ok)
59 else # $(kvm_dep_iodev_check)
60 $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
61 endif # $(kvm_dep_iodev_check)
62 else # $(kvm_dep_lapic_check)
63 $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
64 endif # $(kvm_dep_lapic_check)
66 $(warning CONFIG_KALLSYMS_ALL is disabled. Probe "kvm" x86-specific is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
67 endif # CONFIG_KALLSYMS_ALL
71 ifneq ($(CONFIG_X86),)
72 x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
74 ifneq ($(wildcard $(x86_irq_vectors_dep)),)
75 obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
76 endif # $(wildcard $(x86_irq_vectors_dep))
78 x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
80 ifneq ($(wildcard $(x86_exceptions_dep)),)
81 obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
82 endif # $(wildcard $(x86_exceptions_dep))
85 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
87 ifneq ($(CONFIG_BLOCK),)
88 # need blk_cmd_buf_len
89 ifneq ($(CONFIG_EVENT_TRACING),)
90 obj-$(CONFIG_LTTNG) += lttng-probe-block.o
91 endif # CONFIG_EVENT_TRACING
94 ifneq ($(CONFIG_NET),)
95 obj-$(CONFIG_LTTNG) += lttng-probe-napi.o
96 obj-$(CONFIG_LTTNG) += lttng-probe-skb.o
97 obj-$(CONFIG_LTTNG) += lttng-probe-net.o
98 obj-$(CONFIG_LTTNG) += $(shell \
99 if [ $(VERSION) -ge 4 \
100 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
101 echo "lttng-probe-sock.o" ; fi;)
102 obj-$(CONFIG_LTTNG) += $(shell \
103 if [ $(VERSION) -ge 4 \
104 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
105 echo "lttng-probe-udp.o" ; fi;)
108 ifneq ($(CONFIG_SND_SOC),)
109 obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
110 endif # CONFIG_SND_SOC
112 ifneq ($(CONFIG_EXT3_FS),)
113 ext3_dep = $(srctree)/fs/ext3/*.h
114 ext3_dep_check = $(wildcard $(ext3_dep))
116 if [ $(VERSION) -lt 4 -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -lt 3 \) ] ; then \
117 if [ $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
118 if [ \( $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) \) -a \
119 -z "$(ext3_dep_check)" ] ; then \
123 echo "lttng-probe-ext3.o" ; \
127 $(warning Files $(ext3_dep) not found. Probe "ext3" is disabled. Use full kernel source tree to enable it.)
130 obj-$(CONFIG_LTTNG) += $(ext3)
131 endif # CONFIG_EXT3_FS
133 ifneq ($(CONFIG_GPIOLIB),)
134 obj-$(CONFIG_LTTNG) += $(shell \
135 if [ $(VERSION) -ge 3 ] ; then \
136 echo "lttng-probe-gpio.o" ; fi;)
137 endif # CONFIG_GPIOLIB
139 ifneq ($(CONFIG_JBD2),)
140 obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
143 ifneq ($(CONFIG_JBD),)
144 obj-$(CONFIG_LTTNG) += $(shell \
145 if [ $(VERSION) -ge 4 \
146 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
147 echo "lttng-probe-jbd.o" ; fi;)
150 ifneq ($(CONFIG_REGULATOR),)
151 obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
152 endif # CONFIG_REGULATOR
154 ifneq ($(CONFIG_SCSI),)
155 obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
158 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
160 # lock probe does not work, so disabling it for now
161 #ifneq ($(CONFIG_LOCKDEP),)
162 # obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
163 #endif # CONFIG_LOCKDEP
165 ifneq ($(CONFIG_BTRFS_FS),)
166 btrfs_dep = $(srctree)/fs/btrfs/*.h
167 ifneq ($(wildcard $(btrfs_dep)),)
168 obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
170 $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
171 endif # $(wildcard $(btrfs_dep))
172 endif # CONFIG_BTRFS_FS
174 ifneq ($(CONFIG_COMPACTION),)
175 obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
176 endif # CONFIG_COMPACTION
178 ifneq ($(CONFIG_EXT4_FS),)
179 ext4_dep = $(srctree)/fs/ext4/*.h
180 ifneq ($(wildcard $(ext4_dep)),)
181 obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
183 $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
184 endif # $(wildcard $(ext4_dep))
185 endif # CONFIG_EXT4_FS
187 obj-$(CONFIG_LTTNG) += $(shell \
188 if [ $(VERSION) -ge 4 \
189 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
190 echo "lttng-probe-printk.o" ; fi;)
192 ifneq ($(CONFIG_FRAME_WARN),0)
193 CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
196 # Introduced in v3.6, remove in v5.18
197 random_dep = $(srctree)/include/trace/events/random.h
198 ifneq ($(wildcard $(random_dep)),)
199 obj-$(CONFIG_LTTNG) += lttng-probe-random.o
202 obj-$(CONFIG_LTTNG) += $(shell \
203 if [ $(VERSION) -ge 4 \
204 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
205 echo "lttng-probe-rcu.o" ; fi;)
207 ifneq ($(CONFIG_REGMAP),)
208 regmap_dep_4_1 = $(srctree)/drivers/base/regmap/trace.h
209 ifneq ($(wildcard $(regmap_dep_4_1)),)
210 obj-$(CONFIG_LTTNG) += lttng-probe-regmap.o
212 $(warning File $(regmap_dep_4_1) not found. Probe "regmap" is disabled. Need Linux 4.1+ kernel source tree to enable it.)
213 endif # $(wildcard $(regmap_dep_4_1)),
214 endif # CONFIG_REGMAP
216 ifneq ($(CONFIG_PM_RUNTIME),)
217 obj-$(CONFIG_LTTNG) += $(shell \
218 if [ $(VERSION) -ge 4 \
219 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
220 echo "lttng-probe-rpm.o" ; fi;)
221 endif # CONFIG_PM_RUNTIME
223 ifneq ($(CONFIG_SUNRPC),)
224 obj-$(CONFIG_LTTNG) += $(shell \
225 if [ $(VERSION) -ge 4 \
226 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
227 echo "lttng-probe-sunrpc.o" ; fi;)
228 endif # CONFIG_SUNRPC
230 ifneq ($(CONFIG_VIDEO_V4L2),)
231 obj-$(CONFIG_LTTNG) += $(shell \
232 if [ $(VERSION) -ge 4 \
233 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 14 \) ] ; then \
234 echo "lttng-probe-v4l2.o" ; fi;)
235 endif # CONFIG_VIDEO_V4L2
237 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
239 ifneq ($(CONFIG_KALLSYMS_ALL),)
240 obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
242 ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
243 $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
245 endif # CONFIG_KALLSYMS_ALL
247 ifneq ($(CONFIG_KPROBES),)
248 obj-$(CONFIG_LTTNG) += lttng-kprobes.o
249 endif # CONFIG_KPROBES
251 ifneq ($(CONFIG_UPROBES),)
252 obj-$(CONFIG_LTTNG) += lttng-uprobes.o
253 endif # CONFIG_UPROBES
255 ifneq ($(CONFIG_KRETPROBES),)
256 obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
257 endif # CONFIG_KRETPROBES
259 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
260 obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
261 endif # CONFIG_PREEMPTIRQ_EVENTS