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 ($(CONFIG_X86),)
  49     ifneq ($(CONFIG_KALLSYMS_ALL),)
  50       kvm_dep_lapic = $(srctree)/arch/x86/kvm/lapic.h
  51       kvm_dep_lapic_check = $(wildcard $(kvm_dep_lapic))
  52       ifneq ($(kvm_dep_lapic_check),)
  53         # search for iodev.h in any of its known locations
  54         kvm_dep_iodev = $(srctree)/virt/kvm/iodev.h $(srctree)/include/kvm/iodev.h
  55         kvm_dep_iodev_check = $(wildcard $(kvm_dep_iodev))
  56         ifneq ($(kvm_dep_iodev_check),)
  57           kvm_dep_emulate = $(srctree)/arch/x86/kvm/kvm_emulate.h
  58           kvm_dep_emulate_wildcard = $(wildcard $(kvm_dep_emulate))
  59           kvm_dep_emulate_check = $(shell \
  60           if [ \( $(VERSION) -ge 6 \
  61              -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -eq 7 \) \) -a \
  62              -z "$(kvm_dep_emulate_wildcard)" ] ; then \
  63             echo "warn" ; \
  64           else \
  65             echo "ok" ; \
  66           fi ;)
  67           ifeq ($(kvm_dep_emulate_check),ok)
  68             CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm \
  69                        -I$(srctree)/arch/x86/kvm
  70             CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm \
  71                        -I$(srctree)/arch/x86/kvm
  72             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
  73             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
  74           else # ($(kvm_dep_emulate_check),ok)
  75             $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  76           endif # ($(kvm_dep_emulate_check),ok)
  77         else # $(kvm_dep_iodev_check)
  78           $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  79         endif # $(kvm_dep_iodev_check)
  80       else # $(kvm_dep_lapic_check)
  81         $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  82       endif # $(kvm_dep_lapic_check)
  83     else
  84       $(warning CONFIG_KALLSYMS_ALL is disabled. Probe "kvm" x86-specific is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
  85     endif # CONFIG_KALLSYMS_ALL
  86   endif # CONFIG_X86
  87 endif # CONFIG_KVM
  88
  89 ifneq ($(CONFIG_X86),)
  90   x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
  91
  92   ifneq ($(wildcard $(x86_irq_vectors_dep)),)
  93     obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
  94   endif # $(wildcard $(x86_irq_vectors_dep))
  95
  96   x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
  97
  98   ifneq ($(wildcard $(x86_exceptions_dep)),)
  99     obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
 100   endif # $(wildcard $(x86_exceptions_dep))
 101 endif # CONFIG_X86
 102
 103 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
 104
 105 ifneq ($(CONFIG_BLOCK),)
 106   # need blk_cmd_buf_len
 107   ifneq ($(CONFIG_EVENT_TRACING),)
 108     obj-$(CONFIG_LTTNG) += lttng-probe-block.o
 109   endif # CONFIG_EVENT_TRACING
 110 endif # CONFIG_BLOCK
 111
 112 ifneq ($(CONFIG_NET),)
 113   obj-$(CONFIG_LTTNG) += lttng-probe-napi.o
 114   obj-$(CONFIG_LTTNG) += lttng-probe-skb.o
 115   obj-$(CONFIG_LTTNG) += lttng-probe-net.o
 116   obj-$(CONFIG_LTTNG) +=  $(shell \
 117     if [ $(VERSION) -ge 4 \
 118       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 119       echo "lttng-probe-sock.o" ; fi;)
 120   obj-$(CONFIG_LTTNG) +=  $(shell \
 121     if [ $(VERSION) -ge 4 \
 122       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 123       echo "lttng-probe-udp.o" ; fi;)
 124 endif # CONFIG_NET
 125
 126 ifneq ($(CONFIG_SND_SOC),)
 127   obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
 128 endif # CONFIG_SND_SOC
 129
 130 ifneq ($(CONFIG_EXT3_FS),)
 131   ext3_dep = $(srctree)/fs/ext3/*.h
 132   ext3_dep_check = $(wildcard $(ext3_dep))
 133   ext3 = $(shell \
 134     if [ $(VERSION) -lt 4 -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -lt 3 \) ] ; then \
 135       if [ $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 136         if [ \( $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) \) -a \
 137           -z "$(ext3_dep_check)" ] ; then \
 138           echo "warn" ; \
 139           exit ; \
 140         fi; \
 141         echo "lttng-probe-ext3.o" ; \
 142       fi; \
 143     fi;)
 144   ifeq ($(ext3),warn)
 145     $(warning Files $(ext3_dep) not found. Probe "ext3" is disabled. Use full kernel source tree to enable it.)
 146     ext3 =
 147   endif # $(ext3),warn
 148   obj-$(CONFIG_LTTNG) += $(ext3)
 149 endif # CONFIG_EXT3_FS
 150
 151 ifneq ($(CONFIG_GPIOLIB),)
 152   obj-$(CONFIG_LTTNG) +=  $(shell \
 153     if [ $(VERSION) -ge 3 ] ; then \
 154       echo "lttng-probe-gpio.o" ; fi;)
 155 endif # CONFIG_GPIOLIB
 156
 157 ifneq ($(CONFIG_JBD2),)
 158   obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
 159 endif # CONFIG_JBD2
 160
 161 ifneq ($(CONFIG_JBD),)
 162   obj-$(CONFIG_LTTNG) +=  $(shell \
 163     if [ $(VERSION) -ge 4 \
 164       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 165       echo "lttng-probe-jbd.o" ; fi;)
 166 endif # CONFIG_JBD
 167
 168 ifneq ($(CONFIG_REGULATOR),)
 169   obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
 170 endif # CONFIG_REGULATOR
 171
 172 ifneq ($(CONFIG_SCSI),)
 173   obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
 174 endif # CONFIG_SCSI
 175
 176 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
 177
 178 # lock probe does not work, so disabling it for now
 179 #ifneq ($(CONFIG_LOCKDEP),)
 180 #  obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
 181 #endif # CONFIG_LOCKDEP
 182
 183 ifneq ($(CONFIG_BTRFS_FS),)
 184   btrfs_dep = $(srctree)/fs/btrfs/*.h
 185   ifneq ($(wildcard $(btrfs_dep)),)
 186     obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
 187   else
 188     $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
 189   endif # $(wildcard $(btrfs_dep))
 190 endif # CONFIG_BTRFS_FS
 191
 192 ifneq ($(CONFIG_COMPACTION),)
 193   # A dependency on internal header 'mm/internal.h' was introduced in v5.18
 194   compaction_dep = $(srctree)/mm/internal.h
 195   compaction_dep_wildcard = $(wildcard $(compaction_dep))
 196   compaction_dep_check = $(shell \
 197   if [ \( $(VERSION) -ge 6 \
 198      -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 18 \) \) -a \
 199      -z "$(compaction_dep_wildcard)" ] ; then \
 200     echo "warn" ; \
 201   else \
 202     echo "ok" ; \
 203   fi ;)
 204   ifeq ($(compaction_dep_check),ok)
 205     obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
 206   else
 207     $(warning Files $(compaction_dep) not found. Probe "compaction" is disabled. Use full kernel source tree to enable it.)
 208   endif # $(wildcard $(compaction_dep))
 209 endif # CONFIG_COMPACTION
 210
 211 ifneq ($(CONFIG_EXT4_FS),)
 212   ext4_dep = $(srctree)/fs/ext4/*.h
 213   ifneq ($(wildcard $(ext4_dep)),)
 214     obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
 215   else
 216     $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
 217   endif # $(wildcard $(ext4_dep))
 218 endif # CONFIG_EXT4_FS
 219
 220 obj-$(CONFIG_LTTNG) +=  $(shell \
 221   if [ $(VERSION) -ge 4 \
 222     -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
 223     echo "lttng-probe-printk.o" ; fi;)
 224
 225 ifneq ($(CONFIG_FRAME_WARN),0)
 226   CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
 227 endif
 228
 229 # Introduced in v3.6, remove in v5.18
 230 random_dep = $(srctree)/include/trace/events/random.h
 231 ifneq ($(wildcard $(random_dep)),)
 232   obj-$(CONFIG_LTTNG) += lttng-probe-random.o
 233 endif
 234
 235 obj-$(CONFIG_LTTNG) +=  $(shell \
 236   if [ $(VERSION) -ge 4 \
 237     -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
 238     echo "lttng-probe-rcu.o" ; fi;)
 239
 240 ifneq ($(CONFIG_REGMAP),)
 241   regmap_dep_4_1 = $(srctree)/drivers/base/regmap/trace.h
 242   ifneq ($(wildcard $(regmap_dep_4_1)),)
 243     obj-$(CONFIG_LTTNG) += lttng-probe-regmap.o
 244   else
 245     $(warning File $(regmap_dep_4_1) not found. Probe "regmap" is disabled. Need Linux 4.1+ kernel source tree to enable it.)
 246   endif # $(wildcard $(regmap_dep_4_1)),
 247 endif # CONFIG_REGMAP
 248
 249 ifneq ($(CONFIG_PM_RUNTIME),)
 250   obj-$(CONFIG_LTTNG) +=  $(shell \
 251     if [ $(VERSION) -ge 4 \
 252       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
 253       echo "lttng-probe-rpm.o" ; fi;)
 254 endif # CONFIG_PM_RUNTIME
 255
 256 ifneq ($(CONFIG_SUNRPC),)
 257   obj-$(CONFIG_LTTNG) +=  $(shell \
 258     if [ $(VERSION) -ge 4 \
 259       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
 260       echo "lttng-probe-sunrpc.o" ; fi;)
 261 endif # CONFIG_SUNRPC
 262
 263 ifneq ($(CONFIG_VIDEO_V4L2),)
 264   obj-$(CONFIG_LTTNG) += $(shell \
 265     if [ $(VERSION) -ge 4 \
 266       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 14 \) ] ; then \
 267       echo "lttng-probe-v4l2.o" ; fi;)
 268 endif # CONFIG_VIDEO_V4L2
 269
 270 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
 271
 272 ifneq ($(CONFIG_KALLSYMS_ALL),)
 273   obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
 274 else
 275   ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
 276     $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
 277   endif
 278 endif # CONFIG_KALLSYMS_ALL
 279
 280 ifneq ($(CONFIG_KPROBES),)
 281   obj-$(CONFIG_LTTNG) += lttng-kprobes.o
 282 endif # CONFIG_KPROBES
 283
 284 ifneq ($(CONFIG_UPROBES),)
 285   obj-$(CONFIG_LTTNG) += lttng-uprobes.o
 286 endif # CONFIG_UPROBES
 287
 288 ifneq ($(CONFIG_KRETPROBES),)
 289   obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
 290 endif # CONFIG_KRETPROBES
 291
 292 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
 293   obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
 294 endif # CONFIG_PREEMPTIRQ_EVENTS
 295
 296 # vim:syntax=make