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) += lttng-probe-9p.o
38 i2c_dep = $(srctree)/include/trace/events/i2c.h
39 ifneq ($(wildcard $(i2c_dep)),)
40 obj-$(CONFIG_LTTNG) += lttng-probe-i2c.o
43 ifneq ($(CONFIG_KVM),)
44 obj-$(CONFIG_LTTNG) += lttng-probe-kvm.o
45 ifneq ($(CONFIG_X86),)
46 ifneq ($(CONFIG_KALLSYMS_ALL),)
47 kvm_dep_lapic = $(srctree)/arch/x86/kvm/lapic.h
48 kvm_dep_lapic_check = $(wildcard $(kvm_dep_lapic))
49 ifneq ($(kvm_dep_lapic_check),)
50 kvm_dep_iodev = $(srctree)/include/kvm/iodev.h
51 kvm_dep_iodev_check = $(wildcard $(kvm_dep_iodev))
52 ifneq ($(kvm_dep_iodev_check),)
53 kvm_dep_emulate = $(srctree)/arch/x86/kvm/kvm_emulate.h
54 kvm_dep_emulate_wildcard = $(wildcard $(kvm_dep_emulate))
55 kvm_dep_emulate_check = $(shell \
56 if [ \( $(VERSION) -ge 6 \
57 -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -eq 7 \) \) -a \
58 -z "$(kvm_dep_emulate_wildcard)" ] ; then \
63 ifeq ($(kvm_dep_emulate_check),ok)
64 CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm \
65 -I$(srctree)/arch/x86/kvm
66 CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm \
67 -I$(srctree)/arch/x86/kvm
68 obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
69 obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
70 else # ($(kvm_dep_emulate_check),ok)
71 $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
72 endif # ($(kvm_dep_emulate_check),ok)
73 else # $(kvm_dep_iodev_check)
74 $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
75 endif # $(kvm_dep_iodev_check)
76 else # $(kvm_dep_lapic_check)
77 $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
78 endif # $(kvm_dep_lapic_check)
80 $(warning CONFIG_KALLSYMS_ALL is disabled. Probe "kvm" x86-specific is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
81 endif # CONFIG_KALLSYMS_ALL
85 ifneq ($(CONFIG_X86),)
86 x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
88 ifneq ($(wildcard $(x86_irq_vectors_dep)),)
89 obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
90 endif # $(wildcard $(x86_irq_vectors_dep))
92 x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
94 ifneq ($(wildcard $(x86_exceptions_dep)),)
95 obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
96 endif # $(wildcard $(x86_exceptions_dep))
99 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
101 ifneq ($(CONFIG_DMA_SHARED_BUFFER),)
102 obj-$(CONFIG_LTTNG) += $(shell \
103 if [ $(VERSION) -ge 5 \
104 -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -ge 10 \) ] ; then \
105 echo "lttng-probe-dma-fence.o" ; fi;)
106 endif # CONFIG_DMA_SHARED_BUFFER
108 ifneq ($(CONFIG_BLOCK),)
109 # need blk_cmd_buf_len
110 ifneq ($(CONFIG_EVENT_TRACING),)
111 obj-$(CONFIG_LTTNG) += lttng-probe-block.o
112 endif # CONFIG_EVENT_TRACING
115 ifneq ($(CONFIG_NET),)
116 obj-$(CONFIG_LTTNG) += lttng-probe-napi.o
117 obj-$(CONFIG_LTTNG) += lttng-probe-skb.o
118 obj-$(CONFIG_LTTNG) += lttng-probe-net.o
119 obj-$(CONFIG_LTTNG) += lttng-probe-sock.o
120 obj-$(CONFIG_LTTNG) += lttng-probe-udp.o
123 ifneq ($(CONFIG_SND_SOC),)
124 obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
125 endif # CONFIG_SND_SOC
127 ifneq ($(CONFIG_GPIOLIB),)
128 obj-$(CONFIG_LTTNG) += lttng-probe-gpio.o
129 endif # CONFIG_GPIOLIB
131 ifneq ($(CONFIG_JBD2),)
132 obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
135 ifneq ($(CONFIG_JBD),)
136 obj-$(CONFIG_LTTNG) += lttng-probe-jbd.o
139 ifneq ($(CONFIG_REGULATOR),)
140 obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
141 endif # CONFIG_REGULATOR
143 ifneq ($(CONFIG_SCSI),)
144 obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
147 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
149 # lock probe does not work, so disabling it for now
150 #ifneq ($(CONFIG_LOCKDEP),)
151 # obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
152 #endif # CONFIG_LOCKDEP
154 ifneq ($(CONFIG_BTRFS_FS),)
155 btrfs_dep = $(srctree)/fs/btrfs/*.h
156 ifneq ($(wildcard $(btrfs_dep)),)
157 obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
159 $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
160 endif # $(wildcard $(btrfs_dep))
161 endif # CONFIG_BTRFS_FS
163 ifneq ($(CONFIG_COMPACTION),)
164 # A dependency on internal header 'mm/internal.h' was introduced in v5.18
165 compaction_dep = $(srctree)/mm/internal.h
166 compaction_dep_wildcard = $(wildcard $(compaction_dep))
167 compaction_dep_check = $(shell \
168 if [ \( $(VERSION) -ge 6 \
169 -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 18 \) \) -a \
170 -z "$(compaction_dep_wildcard)" ] ; then \
175 ifeq ($(compaction_dep_check),ok)
176 obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
178 $(warning Files $(compaction_dep) not found. Probe "compaction" is disabled. Use full kernel source tree to enable it.)
179 endif # $(wildcard $(compaction_dep))
180 endif # CONFIG_COMPACTION
182 ifneq ($(CONFIG_EXT4_FS),)
183 ext4_dep = $(srctree)/fs/ext4/*.h
184 ifneq ($(wildcard $(ext4_dep)),)
185 obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
187 $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
188 endif # $(wildcard $(ext4_dep))
189 endif # CONFIG_EXT4_FS
191 obj-$(CONFIG_LTTNG) += lttng-probe-printk.o
193 ifneq ($(CONFIG_FRAME_WARN),0)
194 CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
197 # Introduced in v3.6, remove in v5.18
198 random_dep = $(srctree)/include/trace/events/random.h
199 ifneq ($(wildcard $(random_dep)),)
200 obj-$(CONFIG_LTTNG) += lttng-probe-random.o
203 obj-$(CONFIG_LTTNG) += lttng-probe-rcu.o
205 ifneq ($(CONFIG_REGMAP),)
206 regmap_dep = $(srctree)/drivers/base/regmap/trace.h
207 ifneq ($(wildcard $(regmap_dep)),)
208 obj-$(CONFIG_LTTNG) += lttng-probe-regmap.o
210 $(warning File $(regmap_dep) not found. Probe "regmap" is disabled. Use full kernel source tree to enable it.)
211 endif # $(wildcard $(regmap_dep)),
212 endif # CONFIG_REGMAP
214 ifneq ($(CONFIG_PM_RUNTIME),)
215 obj-$(CONFIG_LTTNG) += lttng-probe-rpm.o
216 endif # CONFIG_PM_RUNTIME
218 ifneq ($(CONFIG_SUNRPC),)
219 obj-$(CONFIG_LTTNG) += lttng-probe-sunrpc.o
220 endif # CONFIG_SUNRPC
222 ifneq ($(CONFIG_VIDEO_V4L2),)
223 obj-$(CONFIG_LTTNG) += lttng-probe-v4l2.o
224 endif # CONFIG_VIDEO_V4L2
226 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
228 ifneq ($(CONFIG_KALLSYMS_ALL),)
229 obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
231 ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
232 $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
234 endif # CONFIG_KALLSYMS_ALL
236 ifneq ($(CONFIG_KPROBES),)
237 obj-$(CONFIG_LTTNG) += lttng-kprobes.o
238 endif # CONFIG_KPROBES
240 ifneq ($(CONFIG_UPROBES),)
241 obj-$(CONFIG_LTTNG) += lttng-uprobes.o
242 endif # CONFIG_UPROBES
244 ifneq ($(CONFIG_KRETPROBES),)
245 obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
246 endif # CONFIG_KRETPROBES
248 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
249 obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
250 endif # CONFIG_PREEMPTIRQ_EVENTS