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
13 # A dependency on internal header 'mm/slab.h' was introduced in v6.0
14 kmem_dep = $(srctree)/mm/slab.h
15 kmem_dep_wildcard = $(wildcard $(kmem_dep))
16 kmem_dep_check = $(shell \
17 if [ \( $(VERSION) -ge 7 \
18 -o \( $(VERSION) -eq 6 -a $(PATCHLEVEL) -ge 0 \) \) -a \
19 -z "$(kmem_dep_wildcard)" ] ; then \
24 ifeq ($(kmem_dep_check),ok)
25 obj-$(CONFIG_LTTNG) += lttng-probe-kmem.o
27 $(warning File $(kmem_dep) not found. Probe "kmem" is disabled. Use full kernel source tree to enable it.)
30 obj-$(CONFIG_LTTNG) += lttng-probe-module.o
31 obj-$(CONFIG_LTTNG) += lttng-probe-power.o
32 obj-$(CONFIG_LTTNG) += lttng-probe-statedump.o
34 ifneq ($(CONFIG_NET_9P),)
35 obj-$(CONFIG_LTTNG) += $(shell \
36 if [ $(VERSION) -ge 4 \
37 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -eq 10 \) ] ; then \
38 echo "lttng-probe-9p.o" ; fi;)
41 i2c_dep = $(srctree)/include/trace/events/i2c.h
42 ifneq ($(wildcard $(i2c_dep)),)
43 obj-$(CONFIG_LTTNG) += lttng-probe-i2c.o
46 ifneq ($(CONFIG_KVM),)
47 obj-$(CONFIG_LTTNG) += lttng-probe-kvm.o
48 ifneq ($(CONFIG_X86),)
49 kvm_dep_lapic = $(srctree)/arch/x86/kvm/lapic.h
50 kvm_dep_lapic_check = $(wildcard $(kvm_dep_lapic))
51 ifneq ($(kvm_dep_lapic_check),)
52 # search for iodev.h in any of its known locations
53 kvm_dep_iodev = $(srctree)/virt/kvm/iodev.h $(srctree)/include/kvm/iodev.h
54 kvm_dep_iodev_check = $(wildcard $(kvm_dep_iodev))
55 ifneq ($(kvm_dep_iodev_check),)
56 kvm_dep_emulate = $(srctree)/arch/x86/kvm/kvm_emulate.h
57 kvm_dep_emulate_wildcard = $(wildcard $(kvm_dep_emulate))
58 kvm_dep_emulate_check = $(shell \
59 if [ \( $(VERSION) -ge 6 \
60 -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -eq 7 \) \) -a \
61 -z "$(kvm_dep_emulate_wildcard)" ] ; then \
66 ifeq ($(kvm_dep_emulate_check),ok)
67 CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm \
68 -I$(srctree)/arch/x86/kvm
69 CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm
70 obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
71 obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
72 else # ($(kvm_dep_emulate_check),ok)
73 $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
74 endif # ($(kvm_dep_emulate_check),ok)
75 else # $(kvm_dep_iodev_check)
76 $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
77 endif # $(kvm_dep_iodev_check)
78 else # $(kvm_dep_lapic_check)
79 $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
80 endif # $(kvm_dep_lapic_check)
84 ifneq ($(CONFIG_X86),)
85 x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
87 ifneq ($(wildcard $(x86_irq_vectors_dep)),)
88 obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
89 endif # $(wildcard $(x86_irq_vectors_dep))
91 x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
93 ifneq ($(wildcard $(x86_exceptions_dep)),)
94 obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
95 endif # $(wildcard $(x86_exceptions_dep))
98 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
100 ifneq ($(CONFIG_DMA_SHARED_BUFFER),)
101 obj-$(CONFIG_LTTNG) += $(shell \
102 if [ $(VERSION) -ge 5 \
103 -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -ge 9 \) ] ; then \
104 echo "lttng-probe-dma-fence.o" ; fi;)
105 endif # CONFIG_DMA_SHARED_BUFFER
107 ifneq ($(CONFIG_BLOCK),)
108 # need blk_cmd_buf_len
109 ifneq ($(CONFIG_EVENT_TRACING),)
110 obj-$(CONFIG_LTTNG) += lttng-probe-block.o
111 endif # CONFIG_EVENT_TRACING
114 ifneq ($(CONFIG_NET),)
115 obj-$(CONFIG_LTTNG) += lttng-probe-napi.o
116 obj-$(CONFIG_LTTNG) += lttng-probe-skb.o
117 obj-$(CONFIG_LTTNG) += lttng-probe-net.o
118 obj-$(CONFIG_LTTNG) += $(shell \
119 if [ $(VERSION) -ge 4 \
120 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
121 echo "lttng-probe-sock.o" ; fi;)
122 obj-$(CONFIG_LTTNG) += $(shell \
123 if [ $(VERSION) -ge 4 \
124 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
125 echo "lttng-probe-udp.o" ; fi;)
128 ifneq ($(CONFIG_SND_SOC),)
129 obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
130 endif # CONFIG_SND_SOC
132 ifneq ($(CONFIG_EXT3_FS),)
133 ext3_dep = $(srctree)/fs/ext3/*.h
134 ext3_dep_check = $(wildcard $(ext3_dep))
136 if [ $(VERSION) -lt 4 -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -lt 3 \) ] ; then \
137 if [ $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
138 if [ \( $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) \) -a \
139 -z "$(ext3_dep_check)" ] ; then \
143 echo "lttng-probe-ext3.o" ; \
147 $(warning Files $(ext3_dep) not found. Probe "ext3" is disabled. Use full kernel source tree to enable it.)
150 obj-$(CONFIG_LTTNG) += $(ext3)
151 endif # CONFIG_EXT3_FS
153 ifneq ($(CONFIG_GPIOLIB),)
154 obj-$(CONFIG_LTTNG) += $(shell \
155 if [ $(VERSION) -ge 3 ] ; then \
156 echo "lttng-probe-gpio.o" ; fi;)
157 endif # CONFIG_GPIOLIB
159 ifneq ($(CONFIG_JBD2),)
160 obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
163 ifneq ($(CONFIG_JBD),)
164 obj-$(CONFIG_LTTNG) += $(shell \
165 if [ $(VERSION) -ge 4 \
166 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
167 echo "lttng-probe-jbd.o" ; fi;)
170 ifneq ($(CONFIG_REGULATOR),)
171 obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
172 endif # CONFIG_REGULATOR
174 ifneq ($(CONFIG_SCSI),)
175 obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
178 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
180 # lock probe does not work, so disabling it for now
181 #ifneq ($(CONFIG_LOCKDEP),)
182 # obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
183 #endif # CONFIG_LOCKDEP
185 ifneq ($(CONFIG_BTRFS_FS),)
186 btrfs_dep = $(srctree)/fs/btrfs/*.h
187 ifneq ($(wildcard $(btrfs_dep)),)
188 obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
190 $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
191 endif # $(wildcard $(btrfs_dep))
192 endif # CONFIG_BTRFS_FS
194 ifneq ($(CONFIG_COMPACTION),)
195 # A dependency on internal header 'mm/internal.h' was introduced in v5.18
196 compaction_dep = $(srctree)/mm/internal.h
197 compaction_dep_wildcard = $(wildcard $(compaction_dep))
198 compaction_dep_check = $(shell \
199 if [ \( $(VERSION) -ge 6 \
200 -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 18 \) \) -a \
201 -z "$(compaction_dep_wildcard)" ] ; then \
206 ifeq ($(compaction_dep_check),ok)
207 obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
209 $(warning Files $(compaction_dep) not found. Probe "compaction" is disabled. Use full kernel source tree to enable it.)
210 endif # $(wildcard $(compaction_dep))
211 endif # CONFIG_COMPACTION
213 ifneq ($(CONFIG_EXT4_FS),)
214 ext4_dep = $(srctree)/fs/ext4/*.h
215 ifneq ($(wildcard $(ext4_dep)),)
216 obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
218 $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
219 endif # $(wildcard $(ext4_dep))
220 endif # CONFIG_EXT4_FS
222 obj-$(CONFIG_LTTNG) += $(shell \
223 if [ $(VERSION) -ge 4 \
224 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
225 echo "lttng-probe-printk.o" ; fi;)
227 ifneq ($(CONFIG_FRAME_WARN),0)
228 CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
231 # Introduced in v3.6, remove in v5.18
232 random_dep = $(srctree)/include/trace/events/random.h
233 ifneq ($(wildcard $(random_dep)),)
234 obj-$(CONFIG_LTTNG) += lttng-probe-random.o
237 obj-$(CONFIG_LTTNG) += $(shell \
238 if [ $(VERSION) -ge 4 \
239 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
240 echo "lttng-probe-rcu.o" ; fi;)
242 ifneq ($(CONFIG_REGMAP),)
243 regmap_dep_4_1 = $(srctree)/drivers/base/regmap/trace.h
244 ifneq ($(wildcard $(regmap_dep_4_1)),)
245 obj-$(CONFIG_LTTNG) += lttng-probe-regmap.o
247 $(warning File $(regmap_dep_4_1) not found. Probe "regmap" is disabled. Need Linux 4.1+ kernel source tree to enable it.)
248 endif # $(wildcard $(regmap_dep_4_1)),
249 endif # CONFIG_REGMAP
251 ifneq ($(CONFIG_PM_RUNTIME),)
252 obj-$(CONFIG_LTTNG) += $(shell \
253 if [ $(VERSION) -ge 4 \
254 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
255 echo "lttng-probe-rpm.o" ; fi;)
256 endif # CONFIG_PM_RUNTIME
258 ifneq ($(CONFIG_SUNRPC),)
259 obj-$(CONFIG_LTTNG) += $(shell \
260 if [ $(VERSION) -ge 4 \
261 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
262 echo "lttng-probe-sunrpc.o" ; fi;)
263 endif # CONFIG_SUNRPC
265 ifneq ($(CONFIG_VIDEO_V4L2),)
266 obj-$(CONFIG_LTTNG) += $(shell \
267 if [ $(VERSION) -ge 4 \
268 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 14 \) ] ; then \
269 echo "lttng-probe-v4l2.o" ; fi;)
270 endif # CONFIG_VIDEO_V4L2
272 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
274 ifneq ($(CONFIG_KALLSYMS_ALL),)
275 obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
277 ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
278 $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
280 endif # CONFIG_KALLSYMS_ALL
282 ifneq ($(CONFIG_KPROBES),)
283 obj-$(CONFIG_LTTNG) += lttng-kprobes.o
284 endif # CONFIG_KPROBES
286 ifneq ($(CONFIG_UPROBES),)
287 obj-$(CONFIG_LTTNG) += lttng-uprobes.o
288 endif # CONFIG_UPROBES
290 ifneq ($(CONFIG_KRETPROBES),)
291 obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
292 endif # CONFIG_KRETPROBES
294 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
295 obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
296 endif # CONFIG_PREEMPTIRQ_EVENTS