1 # SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
3 TOP_LTTNG_MODULES_DIR := $(shell dirname $(lastword $(MAKEFILE_LIST)))/../..
5 include $(TOP_LTTNG_MODULES_DIR)/src/Kbuild.common
7 ccflags-y += -I$(TOP_LTTNG_MODULES_DIR)/include
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 kvm_dep_lapic = $(srctree)/arch/x86/kvm/lapic.h
33 kvm_dep_lapic_check = $(wildcard $(kvm_dep_lapic))
34 ifneq ($(kvm_dep_lapic_check),)
35 # search for iodev.h in any of its known locations
36 kvm_dep_iodev = $(srctree)/virt/kvm/iodev.h $(srctree)/include/kvm/iodev.h
37 kvm_dep_iodev_check = $(wildcard $(kvm_dep_iodev))
38 ifneq ($(kvm_dep_iodev_check),)
39 kvm_dep_emulate = $(srctree)/arch/x86/kvm/kvm_emulate.h
40 kvm_dep_emulate_wildcard = $(wildcard $(kvm_dep_emulate))
41 kvm_dep_emulate_check = $(shell \
42 if [ \( $(VERSION) -ge 6 \
43 -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -eq 7 \) \) -a \
44 -z "$(kvm_dep_emulate_wildcard)" ] ; then \
49 ifeq ($(kvm_dep_emulate_check),ok)
50 CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm \
51 -I$(srctree)/arch/x86/kvm
52 CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm
53 obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
54 obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
55 else # ($(kvm_dep_emulate_check),ok)
56 $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
57 endif # ($(kvm_dep_emulate_check),ok)
58 else # $(kvm_dep_iodev_check)
59 $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
60 endif # $(kvm_dep_iodev_check)
61 else # $(kvm_dep_lapic_check)
62 $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
63 endif # $(kvm_dep_lapic_check)
67 ifneq ($(CONFIG_X86),)
68 x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
70 ifneq ($(wildcard $(x86_irq_vectors_dep)),)
71 obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
72 endif # $(wildcard $(x86_irq_vectors_dep))
74 x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
76 ifneq ($(wildcard $(x86_exceptions_dep)),)
77 obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
78 endif # $(wildcard $(x86_exceptions_dep))
81 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
83 ifneq ($(CONFIG_BLOCK),)
84 # need blk_cmd_buf_len
85 ifneq ($(CONFIG_EVENT_TRACING),)
86 obj-$(CONFIG_LTTNG) += lttng-probe-block.o
87 endif # CONFIG_EVENT_TRACING
90 ifneq ($(CONFIG_NET),)
91 obj-$(CONFIG_LTTNG) += lttng-probe-napi.o
92 obj-$(CONFIG_LTTNG) += lttng-probe-skb.o
93 obj-$(CONFIG_LTTNG) += lttng-probe-net.o
94 obj-$(CONFIG_LTTNG) += $(shell \
95 if [ $(VERSION) -ge 4 \
96 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
97 echo "lttng-probe-sock.o" ; fi;)
98 obj-$(CONFIG_LTTNG) += $(shell \
99 if [ $(VERSION) -ge 4 \
100 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
101 echo "lttng-probe-udp.o" ; fi;)
104 ifneq ($(CONFIG_SND_SOC),)
105 obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
106 endif # CONFIG_SND_SOC
108 ifneq ($(CONFIG_EXT3_FS),)
109 ext3_dep = $(srctree)/fs/ext3/*.h
110 ext3_dep_check = $(wildcard $(ext3_dep))
112 if [ $(VERSION) -lt 4 -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -lt 3 \) ] ; then \
113 if [ $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
114 if [ \( $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) \) -a \
115 -z "$(ext3_dep_check)" ] ; then \
119 echo "lttng-probe-ext3.o" ; \
123 $(warning Files $(ext3_dep) not found. Probe "ext3" is disabled. Use full kernel source tree to enable it.)
126 obj-$(CONFIG_LTTNG) += $(ext3)
127 endif # CONFIG_EXT3_FS
129 ifneq ($(CONFIG_GPIOLIB),)
130 obj-$(CONFIG_LTTNG) += $(shell \
131 if [ $(VERSION) -ge 3 ] ; then \
132 echo "lttng-probe-gpio.o" ; fi;)
133 endif # CONFIG_GPIOLIB
135 ifneq ($(CONFIG_JBD2),)
136 obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
139 ifneq ($(CONFIG_JBD),)
140 obj-$(CONFIG_LTTNG) += $(shell \
141 if [ $(VERSION) -ge 4 \
142 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
143 echo "lttng-probe-jbd.o" ; fi;)
146 ifneq ($(CONFIG_REGULATOR),)
147 obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
148 endif # CONFIG_REGULATOR
150 ifneq ($(CONFIG_SCSI),)
151 obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
154 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
156 # lock probe does not work, so disabling it for now
157 #ifneq ($(CONFIG_LOCKDEP),)
158 # obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
159 #endif # CONFIG_LOCKDEP
161 ifneq ($(CONFIG_BTRFS_FS),)
162 btrfs_dep = $(srctree)/fs/btrfs/*.h
163 ifneq ($(wildcard $(btrfs_dep)),)
164 obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
166 $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
167 endif # $(wildcard $(btrfs_dep))
168 endif # CONFIG_BTRFS_FS
170 # A dependency on internal header 'mm/internal.h' was introduced in v5.18
171 compaction_dep = $(srctree)/mm/internal.h
172 compaction_dep_wildcard = $(wildcard $(compaction_dep))
173 compaction_dep_check = $(shell \
174 if [ \( $(VERSION) -ge 6 \
175 -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 18 \) \) -a \
176 -z "$(compaction_dep_wildcard)" ] ; then \
181 ifeq ($(compaction_dep_check),ok)
182 obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
184 $(warning Files $(compaction_dep) not found. Probe "compaction" is disabled. Use full kernel source tree to enable it.)
185 endif # $(wildcard $(compaction_dep))
187 ifneq ($(CONFIG_EXT4_FS),)
188 ext4_dep = $(srctree)/fs/ext4/*.h
189 ifneq ($(wildcard $(ext4_dep)),)
190 obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
192 $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
193 endif # $(wildcard $(ext4_dep))
194 endif # CONFIG_EXT4_FS
196 obj-$(CONFIG_LTTNG) += $(shell \
197 if [ $(VERSION) -ge 4 \
198 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
199 echo "lttng-probe-printk.o" ; fi;)
201 ifneq ($(CONFIG_FRAME_WARN),0)
202 CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
205 # Introduced in v3.6, remove in v5.18
206 random_dep = $(srctree)/include/trace/events/random.h
207 ifneq ($(wildcard $(random_dep)),)
208 obj-$(CONFIG_LTTNG) += lttng-probe-random.o
211 obj-$(CONFIG_LTTNG) += $(shell \
212 if [ $(VERSION) -ge 4 \
213 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
214 echo "lttng-probe-rcu.o" ; fi;)
216 ifneq ($(CONFIG_REGMAP),)
217 regmap_dep_4_1 = $(srctree)/drivers/base/regmap/trace.h
218 ifneq ($(wildcard $(regmap_dep_4_1)),)
219 obj-$(CONFIG_LTTNG) += lttng-probe-regmap.o
221 $(warning File $(regmap_dep_4_1) not found. Probe "regmap" is disabled. Need Linux 4.1+ kernel source tree to enable it.)
222 endif # $(wildcard $(regmap_dep_4_1)),
223 endif # CONFIG_REGMAP
225 ifneq ($(CONFIG_PM_RUNTIME),)
226 obj-$(CONFIG_LTTNG) += $(shell \
227 if [ $(VERSION) -ge 4 \
228 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
229 echo "lttng-probe-rpm.o" ; fi;)
230 endif # CONFIG_PM_RUNTIME
232 ifneq ($(CONFIG_SUNRPC),)
233 obj-$(CONFIG_LTTNG) += $(shell \
234 if [ $(VERSION) -ge 4 \
235 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
236 echo "lttng-probe-sunrpc.o" ; fi;)
237 endif # CONFIG_SUNRPC
239 ifneq ($(CONFIG_VIDEO_V4L2),)
240 obj-$(CONFIG_LTTNG) += $(shell \
241 if [ $(VERSION) -ge 4 \
242 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 14 \) ] ; then \
243 echo "lttng-probe-v4l2.o" ; fi;)
244 endif # CONFIG_VIDEO_V4L2
246 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
248 ifneq ($(CONFIG_KALLSYMS_ALL),)
249 obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
251 ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
252 $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
254 endif # CONFIG_KALLSYMS_ALL
256 ifneq ($(CONFIG_KPROBES),)
257 obj-$(CONFIG_LTTNG) += lttng-kprobes.o
258 endif # CONFIG_KPROBES
260 ifneq ($(CONFIG_UPROBES),)
261 obj-$(CONFIG_LTTNG) += lttng-uprobes.o
262 endif # CONFIG_UPROBES
264 ifneq ($(CONFIG_KRETPROBES),)
265 obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
266 endif # CONFIG_KRETPROBES
268 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
269 obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
270 endif # CONFIG_PREEMPTIRQ_EVENTS