src/probes/Kbuild

   1 # SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
   2
   3 TOP_LTTNG_MODULES_DIR := $(shell dirname $(lastword $(MAKEFILE_LIST)))/../..
   4
   5 include $(TOP_LTTNG_MODULES_DIR)/src/Kbuild.common
   6
   7 ccflags-y += -I$(TOP_LTTNG_MODULES_DIR)/include
   8
   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
  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 "$(kmem_dep_wildcard)" ] ; then \
  20   echo "warn" ; \
  21 else \
  22   echo "ok" ; \
  23 fi ;)
  24 ifeq ($(kmem_dep_check),ok)
  25   obj-$(CONFIG_LTTNG) += lttng-probe-kmem.o
  26 else
  27   $(warning File $(kmem_dep) not found. Probe "kmem" is disabled. Use full kernel source tree to enable it.)
  28 endif
  29
  30 obj-$(CONFIG_LTTNG) += lttng-probe-module.o
  31 obj-$(CONFIG_LTTNG) += lttng-probe-power.o
  32 obj-$(CONFIG_LTTNG) += lttng-probe-statedump.o
  33
  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;)
  39 endif # CONFIG_NET_9P
  40
  41 i2c_dep = $(srctree)/include/trace/events/i2c.h
  42 ifneq ($(wildcard $(i2c_dep)),)
  43   obj-$(CONFIG_LTTNG) += lttng-probe-i2c.o
  44 endif
  45
  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 "$(kvm_dep_emulate_wildcard)" ] ; then \
  62           echo "warn" ; \
  63         else \
  64           echo "ok" ; \
  65         fi ;)
  66         ifeq ($(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 # $(kvm_dep_lapic_check)
  81   endif # CONFIG_X86
  82 endif # CONFIG_KVM
  83
  84 ifneq ($(CONFIG_X86),)
  85   x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
  86
  87   ifneq ($(wildcard $(x86_irq_vectors_dep)),)
  88     obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
  89   endif # $(wildcard $(x86_irq_vectors_dep))
  90
  91   x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
  92
  93   ifneq ($(wildcard $(x86_exceptions_dep)),)
  94     obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
  95   endif # $(wildcard $(x86_exceptions_dep))
  96 endif # CONFIG_X86
  97
  98 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
  99
 100 ifneq ($(CONFIG_BLOCK),)
 101   # need blk_cmd_buf_len
 102   ifneq ($(CONFIG_EVENT_TRACING),)
 103     obj-$(CONFIG_LTTNG) += lttng-probe-block.o
 104   endif # CONFIG_EVENT_TRACING
 105 endif # CONFIG_BLOCK
 106
 107 ifneq ($(CONFIG_NET),)
 108   obj-$(CONFIG_LTTNG) += lttng-probe-napi.o
 109   obj-$(CONFIG_LTTNG) += lttng-probe-skb.o
 110   obj-$(CONFIG_LTTNG) += lttng-probe-net.o
 111   obj-$(CONFIG_LTTNG) +=  $(shell \
 112     if [ $(VERSION) -ge 4 \
 113       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 114       echo "lttng-probe-sock.o" ; fi;)
 115   obj-$(CONFIG_LTTNG) +=  $(shell \
 116     if [ $(VERSION) -ge 4 \
 117       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 118       echo "lttng-probe-udp.o" ; fi;)
 119 endif # CONFIG_NET
 120
 121 ifneq ($(CONFIG_SND_SOC),)
 122   obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
 123 endif # CONFIG_SND_SOC
 124
 125 ifneq ($(CONFIG_EXT3_FS),)
 126   ext3_dep = $(srctree)/fs/ext3/*.h
 127   ext3_dep_check = $(wildcard $(ext3_dep))
 128   ext3 = $(shell \
 129     if [ $(VERSION) -lt 4 -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -lt 3 \) ] ; then \
 130       if [ $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 131         if [ \( $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) \) -a \
 132           -z "$(ext3_dep_check)" ] ; then \
 133           echo "warn" ; \
 134           exit ; \
 135         fi; \
 136         echo "lttng-probe-ext3.o" ; \
 137       fi; \
 138     fi;)
 139   ifeq ($(ext3),warn)
 140     $(warning Files $(ext3_dep) not found. Probe "ext3" is disabled. Use full kernel source tree to enable it.)
 141     ext3 =
 142   endif # $(ext3),warn
 143   obj-$(CONFIG_LTTNG) += $(ext3)
 144 endif # CONFIG_EXT3_FS
 145
 146 ifneq ($(CONFIG_GPIOLIB),)
 147   obj-$(CONFIG_LTTNG) +=  $(shell \
 148     if [ $(VERSION) -ge 3 ] ; then \
 149       echo "lttng-probe-gpio.o" ; fi;)
 150 endif # CONFIG_GPIOLIB
 151
 152 ifneq ($(CONFIG_JBD2),)
 153   obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
 154 endif # CONFIG_JBD2
 155
 156 ifneq ($(CONFIG_JBD),)
 157   obj-$(CONFIG_LTTNG) +=  $(shell \
 158     if [ $(VERSION) -ge 4 \
 159       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 160       echo "lttng-probe-jbd.o" ; fi;)
 161 endif # CONFIG_JBD
 162
 163 ifneq ($(CONFIG_REGULATOR),)
 164   obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
 165 endif # CONFIG_REGULATOR
 166
 167 ifneq ($(CONFIG_SCSI),)
 168   obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
 169 endif # CONFIG_SCSI
 170
 171 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
 172
 173 # lock probe does not work, so disabling it for now
 174 #ifneq ($(CONFIG_LOCKDEP),)
 175 #  obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
 176 #endif # CONFIG_LOCKDEP
 177
 178 ifneq ($(CONFIG_BTRFS_FS),)
 179   btrfs_dep = $(srctree)/fs/btrfs/*.h
 180   ifneq ($(wildcard $(btrfs_dep)),)
 181     obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
 182   else
 183     $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
 184   endif # $(wildcard $(btrfs_dep))
 185 endif # CONFIG_BTRFS_FS
 186
 187 ifneq ($(CONFIG_COMPACTION),)
 188   # A dependency on internal header 'mm/internal.h' was introduced in v5.18
 189   compaction_dep = $(srctree)/mm/internal.h
 190   compaction_dep_wildcard = $(wildcard $(compaction_dep))
 191   compaction_dep_check = $(shell \
 192   if [ \( $(VERSION) -ge 6 \
 193      -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 18 \) \) -a \
 194      -z "$(compaction_dep_wildcard)" ] ; then \
 195     echo "warn" ; \
 196   else \
 197     echo "ok" ; \
 198   fi ;)
 199   ifeq ($(compaction_dep_check),ok)
 200     obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
 201   else
 202     $(warning Files $(compaction_dep) not found. Probe "compaction" is disabled. Use full kernel source tree to enable it.)
 203   endif # $(wildcard $(compaction_dep))
 204 endif # CONFIG_COMPACTION
 205
 206 ifneq ($(CONFIG_EXT4_FS),)
 207   ext4_dep = $(srctree)/fs/ext4/*.h
 208   ifneq ($(wildcard $(ext4_dep)),)
 209     obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
 210   else
 211     $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
 212   endif # $(wildcard $(ext4_dep))
 213 endif # CONFIG_EXT4_FS
 214
 215 obj-$(CONFIG_LTTNG) +=  $(shell \
 216   if [ $(VERSION) -ge 4 \
 217     -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
 218     echo "lttng-probe-printk.o" ; fi;)
 219
 220 ifneq ($(CONFIG_FRAME_WARN),0)
 221   CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
 222 endif
 223
 224 # Introduced in v3.6, remove in v5.18
 225 random_dep = $(srctree)/include/trace/events/random.h
 226 ifneq ($(wildcard $(random_dep)),)
 227   obj-$(CONFIG_LTTNG) += lttng-probe-random.o
 228 endif
 229
 230 obj-$(CONFIG_LTTNG) +=  $(shell \
 231   if [ $(VERSION) -ge 4 \
 232     -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
 233     echo "lttng-probe-rcu.o" ; fi;)
 234
 235 ifneq ($(CONFIG_REGMAP),)
 236   regmap_dep_4_1 = $(srctree)/drivers/base/regmap/trace.h
 237   ifneq ($(wildcard $(regmap_dep_4_1)),)
 238     obj-$(CONFIG_LTTNG) += lttng-probe-regmap.o
 239   else
 240     $(warning File $(regmap_dep_4_1) not found. Probe "regmap" is disabled. Need Linux 4.1+ kernel source tree to enable it.)
 241   endif # $(wildcard $(regmap_dep_4_1)),
 242 endif # CONFIG_REGMAP
 243
 244 ifneq ($(CONFIG_PM_RUNTIME),)
 245   obj-$(CONFIG_LTTNG) +=  $(shell \
 246     if [ $(VERSION) -ge 4 \
 247       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
 248       echo "lttng-probe-rpm.o" ; fi;)
 249 endif # CONFIG_PM_RUNTIME
 250
 251 ifneq ($(CONFIG_SUNRPC),)
 252   obj-$(CONFIG_LTTNG) +=  $(shell \
 253     if [ $(VERSION) -ge 4 \
 254       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
 255       echo "lttng-probe-sunrpc.o" ; fi;)
 256 endif # CONFIG_SUNRPC
 257
 258 ifneq ($(CONFIG_VIDEO_V4L2),)
 259   obj-$(CONFIG_LTTNG) += $(shell \
 260     if [ $(VERSION) -ge 4 \
 261       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 14 \) ] ; then \
 262       echo "lttng-probe-v4l2.o" ; fi;)
 263 endif # CONFIG_VIDEO_V4L2
 264
 265 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
 266
 267 ifneq ($(CONFIG_KALLSYMS_ALL),)
 268   obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
 269 else
 270   ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
 271     $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
 272   endif
 273 endif # CONFIG_KALLSYMS_ALL
 274
 275 ifneq ($(CONFIG_KPROBES),)
 276   obj-$(CONFIG_LTTNG) += lttng-kprobes.o
 277 endif # CONFIG_KPROBES
 278
 279 ifneq ($(CONFIG_UPROBES),)
 280   obj-$(CONFIG_LTTNG) += lttng-uprobes.o
 281 endif # CONFIG_UPROBES
 282
 283 ifneq ($(CONFIG_KRETPROBES),)
 284   obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
 285 endif # CONFIG_KRETPROBES
 286
 287 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
 288   obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
 289 endif # CONFIG_PREEMPTIRQ_EVENTS
 290
 291 # vim:syntax=make