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 \( $(VERSION) -eq 6 -a $(PATCHLEVEL) -ge 0 \) \
  19    -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 14 -a $(RHEL_API_VERSION) -gt 1622301 \) \) -a \
  20    -z "$(kmem_dep_wildcard)" ] ; then \
  21   echo "warn" ; \
  22 else \
  23   echo "ok" ; \
  24 fi ;)
  25 ifeq ($(kmem_dep_check),ok)
  26   obj-$(CONFIG_LTTNG) += lttng-probe-kmem.o
  27 else
  28   $(warning File $(kmem_dep) not found. Probe "kmem" is disabled. Use full kernel source tree to enable it.)
  29 endif
  30
  31 obj-$(CONFIG_LTTNG) += lttng-probe-module.o
  32 obj-$(CONFIG_LTTNG) += lttng-probe-power.o
  33 obj-$(CONFIG_LTTNG) += lttng-probe-statedump.o
  34
  35 ifneq ($(CONFIG_NET_9P),)
  36   obj-$(CONFIG_LTTNG) +=  $(shell \
  37     if [ $(VERSION) -ge 4 \
  38       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -eq 10 \) ] ; then \
  39       echo "lttng-probe-9p.o" ; fi;)
  40 endif # CONFIG_NET_9P
  41
  42 i2c_dep = $(srctree)/include/trace/events/i2c.h
  43 ifneq ($(wildcard $(i2c_dep)),)
  44   obj-$(CONFIG_LTTNG) += lttng-probe-i2c.o
  45 endif
  46
  47 ifneq ($(CONFIG_KVM),)
  48   obj-$(CONFIG_LTTNG) += lttng-probe-kvm.o
  49   ifneq ($(CONFIG_X86),)
  50     ifneq ($(CONFIG_KALLSYMS_ALL),)
  51       kvm_dep_lapic = $(srctree)/arch/x86/kvm/lapic.h
  52       kvm_dep_lapic_check = $(wildcard $(kvm_dep_lapic))
  53       ifneq ($(kvm_dep_lapic_check),)
  54         # search for iodev.h in any of its known locations
  55         kvm_dep_iodev = $(srctree)/virt/kvm/iodev.h $(srctree)/include/kvm/iodev.h
  56         kvm_dep_iodev_check = $(wildcard $(kvm_dep_iodev))
  57         ifneq ($(kvm_dep_iodev_check),)
  58           kvm_dep_emulate = $(srctree)/arch/x86/kvm/kvm_emulate.h
  59           kvm_dep_emulate_wildcard = $(wildcard $(kvm_dep_emulate))
  60           kvm_dep_emulate_check = $(shell \
  61           if [ \( $(VERSION) -ge 6 \
  62              -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -eq 7 \) \
  63              -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -eq 18 -a $(RHEL_API_VERSION) -ge 2400000 \) \) -a \
  64              -z "$(kvm_dep_emulate_wildcard)" ] ; then \
  65             echo "warn" ; \
  66           else \
  67             echo "ok" ; \
  68           fi ;)
  69           ifeq ($(kvm_dep_emulate_check),ok)
  70             CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm \
  71                        -I$(srctree)/arch/x86/kvm
  72             CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm \
  73                        -I$(srctree)/arch/x86/kvm
  74             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
  75             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
  76           else # ($(kvm_dep_emulate_check),ok)
  77             $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  78           endif # ($(kvm_dep_emulate_check),ok)
  79         else # $(kvm_dep_iodev_check)
  80           $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  81         endif # $(kvm_dep_iodev_check)
  82       else # $(kvm_dep_lapic_check)
  83         $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  84       endif # $(kvm_dep_lapic_check)
  85     else
  86       $(warning CONFIG_KALLSYMS_ALL is disabled. Probe "kvm" x86-specific is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
  87     endif # CONFIG_KALLSYMS_ALL
  88   endif # CONFIG_X86
  89 endif # CONFIG_KVM
  90
  91 ifneq ($(CONFIG_X86),)
  92   x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
  93
  94   ifneq ($(wildcard $(x86_irq_vectors_dep)),)
  95     obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
  96   endif # $(wildcard $(x86_irq_vectors_dep))
  97
  98   x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
  99
 100   ifneq ($(wildcard $(x86_exceptions_dep)),)
 101     obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
 102   endif # $(wildcard $(x86_exceptions_dep))
 103 endif # CONFIG_X86
 104
 105 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
 106
 107 ifneq ($(CONFIG_BLOCK),)
 108   # need blk_cmd_buf_len
 109   ifneq ($(CONFIG_EVENT_TRACING),)
 110     obj-$(CONFIG_LTTNG) += lttng-probe-block.o
 111   endif # CONFIG_EVENT_TRACING
 112 endif # CONFIG_BLOCK
 113
 114 ifneq ($(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;)
 126 endif # CONFIG_NET
 127
 128 ifneq ($(CONFIG_SND_SOC),)
 129   obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
 130 endif # CONFIG_SND_SOC
 131
 132 ifneq ($(CONFIG_EXT3_FS),)
 133   ext3_dep = $(srctree)/fs/ext3/*.h
 134   ext3_dep_check = $(wildcard $(ext3_dep))
 135   ext3 = $(shell \
 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 "$(ext3_dep_check)" ] ; then \
 140           echo "warn" ; \
 141           exit ; \
 142         fi; \
 143         echo "lttng-probe-ext3.o" ; \
 144       fi; \
 145     fi;)
 146   ifeq ($(ext3),warn)
 147     $(warning Files $(ext3_dep) not found. Probe "ext3" is disabled. Use full kernel source tree to enable it.)
 148     ext3 =
 149   endif # $(ext3),warn
 150   obj-$(CONFIG_LTTNG) += $(ext3)
 151 endif # CONFIG_EXT3_FS
 152
 153 ifneq ($(CONFIG_GPIOLIB),)
 154   obj-$(CONFIG_LTTNG) +=  $(shell \
 155     if [ $(VERSION) -ge 3 ] ; then \
 156       echo "lttng-probe-gpio.o" ; fi;)
 157 endif # CONFIG_GPIOLIB
 158
 159 ifneq ($(CONFIG_JBD2),)
 160   obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
 161 endif # CONFIG_JBD2
 162
 163 ifneq ($(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;)
 168 endif # CONFIG_JBD
 169
 170 ifneq ($(CONFIG_REGULATOR),)
 171   obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
 172 endif # CONFIG_REGULATOR
 173
 174 ifneq ($(CONFIG_SCSI),)
 175   obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
 176 endif # CONFIG_SCSI
 177
 178 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
 179
 180 # lock probe does not work, so disabling it for now
 181 #ifneq ($(CONFIG_LOCKDEP),)
 182 #  obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
 183 #endif # CONFIG_LOCKDEP
 184
 185 ifneq ($(CONFIG_BTRFS_FS),)
 186   btrfs_dep = $(srctree)/fs/btrfs/*.h
 187   ifneq ($(wildcard $(btrfs_dep)),)
 188     obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
 189   else
 190     $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
 191   endif # $(wildcard $(btrfs_dep))
 192 endif # CONFIG_BTRFS_FS
 193
 194 ifneq ($(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 \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 18 \) \
 201      -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 14 -a $(RHEL_API_VERSION) -gt 1622301 \) \) -a \
 202      -z "$(compaction_dep_wildcard)" ] ; then \
 203     echo "warn" ; \
 204   else \
 205     echo "ok" ; \
 206   fi ;)
 207   ifeq ($(compaction_dep_check),ok)
 208     obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
 209   else
 210     $(warning Files $(compaction_dep) not found. Probe "compaction" is disabled. Use full kernel source tree to enable it.)
 211   endif # $(wildcard $(compaction_dep))
 212 endif # CONFIG_COMPACTION
 213
 214 ifneq ($(CONFIG_EXT4_FS),)
 215   ext4_dep = $(srctree)/fs/ext4/*.h
 216   ifneq ($(wildcard $(ext4_dep)),)
 217     obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
 218   else
 219     $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
 220   endif # $(wildcard $(ext4_dep))
 221 endif # CONFIG_EXT4_FS
 222
 223 obj-$(CONFIG_LTTNG) +=  $(shell \
 224   if [ $(VERSION) -ge 4 \
 225     -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
 226     echo "lttng-probe-printk.o" ; fi;)
 227
 228 ifneq ($(CONFIG_FRAME_WARN),0)
 229   CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
 230 endif
 231
 232 # Introduced in v3.6, remove in v5.18
 233 random_dep = $(srctree)/include/trace/events/random.h
 234 ifneq ($(wildcard $(random_dep)),)
 235   obj-$(CONFIG_LTTNG) += lttng-probe-random.o
 236 endif
 237
 238 obj-$(CONFIG_LTTNG) +=  $(shell \
 239   if [ $(VERSION) -ge 4 \
 240     -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
 241     echo "lttng-probe-rcu.o" ; fi;)
 242
 243 ifneq ($(CONFIG_REGMAP),)
 244   regmap_dep_4_1 = $(srctree)/drivers/base/regmap/trace.h
 245   ifneq ($(wildcard $(regmap_dep_4_1)),)
 246     obj-$(CONFIG_LTTNG) += lttng-probe-regmap.o
 247   else
 248     $(warning File $(regmap_dep_4_1) not found. Probe "regmap" is disabled. Need Linux 4.1+ kernel source tree to enable it.)
 249   endif # $(wildcard $(regmap_dep_4_1)),
 250 endif # CONFIG_REGMAP
 251
 252 ifneq ($(CONFIG_PM_RUNTIME),)
 253   obj-$(CONFIG_LTTNG) +=  $(shell \
 254     if [ $(VERSION) -ge 4 \
 255       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
 256       echo "lttng-probe-rpm.o" ; fi;)
 257 endif # CONFIG_PM_RUNTIME
 258
 259 ifneq ($(CONFIG_SUNRPC),)
 260   obj-$(CONFIG_LTTNG) +=  $(shell \
 261     if [ $(VERSION) -ge 4 \
 262       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
 263       echo "lttng-probe-sunrpc.o" ; fi;)
 264 endif # CONFIG_SUNRPC
 265
 266 ifneq ($(CONFIG_VIDEO_V4L2),)
 267   obj-$(CONFIG_LTTNG) += $(shell \
 268     if [ $(VERSION) -ge 4 \
 269       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 14 \) ] ; then \
 270       echo "lttng-probe-v4l2.o" ; fi;)
 271 endif # CONFIG_VIDEO_V4L2
 272
 273 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
 274
 275 ifneq ($(CONFIG_KALLSYMS_ALL),)
 276   obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
 277 else
 278   ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
 279     $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
 280   endif
 281 endif # CONFIG_KALLSYMS_ALL
 282
 283 ifneq ($(CONFIG_KPROBES),)
 284   obj-$(CONFIG_LTTNG) += lttng-kprobes.o
 285 endif # CONFIG_KPROBES
 286
 287 ifneq ($(CONFIG_UPROBES),)
 288   obj-$(CONFIG_LTTNG) += lttng-uprobes.o
 289 endif # CONFIG_UPROBES
 290
 291 ifneq ($(CONFIG_KRETPROBES),)
 292   obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
 293 endif # CONFIG_KRETPROBES
 294
 295 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
 296   obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
 297 endif # CONFIG_PREEMPTIRQ_EVENTS
 298
 299 # vim:syntax=make