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 \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -eq 7 \) \) -a \
  63              -z "$(kvm_dep_emulate_wildcard)" ] ; then \
  64             echo "warn" ; \
  65           else \
  66             echo "ok" ; \
  67           fi ;)
  68           ifeq ($(kvm_dep_emulate_check),ok)
  69             CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm \
  70                        -I$(srctree)/arch/x86/kvm
  71             CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm \
  72                        -I$(srctree)/arch/x86/kvm
  73             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
  74             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
  75           else # ($(kvm_dep_emulate_check),ok)
  76             $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  77           endif # ($(kvm_dep_emulate_check),ok)
  78         else # $(kvm_dep_iodev_check)
  79           $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  80         endif # $(kvm_dep_iodev_check)
  81       else # $(kvm_dep_lapic_check)
  82         $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  83       endif # $(kvm_dep_lapic_check)
  84     else
  85       $(warning CONFIG_KALLSYMS_ALL is disabled. Probe "kvm" x86-specific is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
  86     endif # CONFIG_KALLSYMS_ALL
  87   endif # CONFIG_X86
  88 endif # CONFIG_KVM
  89
  90 ifneq ($(CONFIG_X86),)
  91   x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
  92
  93   ifneq ($(wildcard $(x86_irq_vectors_dep)),)
  94     obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
  95   endif # $(wildcard $(x86_irq_vectors_dep))
  96
  97   x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
  98
  99   ifneq ($(wildcard $(x86_exceptions_dep)),)
 100     obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
 101   endif # $(wildcard $(x86_exceptions_dep))
 102 endif # CONFIG_X86
 103
 104 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
 105
 106 ifneq ($(CONFIG_BLOCK),)
 107   # need blk_cmd_buf_len
 108   ifneq ($(CONFIG_EVENT_TRACING),)
 109     obj-$(CONFIG_LTTNG) += lttng-probe-block.o
 110   endif # CONFIG_EVENT_TRACING
 111 endif # CONFIG_BLOCK
 112
 113 ifneq ($(CONFIG_NET),)
 114   obj-$(CONFIG_LTTNG) += lttng-probe-napi.o
 115   obj-$(CONFIG_LTTNG) += lttng-probe-skb.o
 116   obj-$(CONFIG_LTTNG) += lttng-probe-net.o
 117   obj-$(CONFIG_LTTNG) +=  $(shell \
 118     if [ $(VERSION) -ge 4 \
 119       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 120       echo "lttng-probe-sock.o" ; fi;)
 121   obj-$(CONFIG_LTTNG) +=  $(shell \
 122     if [ $(VERSION) -ge 4 \
 123       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 124       echo "lttng-probe-udp.o" ; fi;)
 125 endif # CONFIG_NET
 126
 127 ifneq ($(CONFIG_SND_SOC),)
 128   obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
 129 endif # CONFIG_SND_SOC
 130
 131 ifneq ($(CONFIG_EXT3_FS),)
 132   ext3_dep = $(srctree)/fs/ext3/*.h
 133   ext3_dep_check = $(wildcard $(ext3_dep))
 134   ext3 = $(shell \
 135     if [ $(VERSION) -lt 4 -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -lt 3 \) ] ; then \
 136       if [ $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 137         if [ \( $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) \) -a \
 138           -z "$(ext3_dep_check)" ] ; then \
 139           echo "warn" ; \
 140           exit ; \
 141         fi; \
 142         echo "lttng-probe-ext3.o" ; \
 143       fi; \
 144     fi;)
 145   ifeq ($(ext3),warn)
 146     $(warning Files $(ext3_dep) not found. Probe "ext3" is disabled. Use full kernel source tree to enable it.)
 147     ext3 =
 148   endif # $(ext3),warn
 149   obj-$(CONFIG_LTTNG) += $(ext3)
 150 endif # CONFIG_EXT3_FS
 151
 152 ifneq ($(CONFIG_GPIOLIB),)
 153   obj-$(CONFIG_LTTNG) +=  $(shell \
 154     if [ $(VERSION) -ge 3 ] ; then \
 155       echo "lttng-probe-gpio.o" ; fi;)
 156 endif # CONFIG_GPIOLIB
 157
 158 ifneq ($(CONFIG_JBD2),)
 159   obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
 160 endif # CONFIG_JBD2
 161
 162 ifneq ($(CONFIG_JBD),)
 163   obj-$(CONFIG_LTTNG) +=  $(shell \
 164     if [ $(VERSION) -ge 4 \
 165       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 166       echo "lttng-probe-jbd.o" ; fi;)
 167 endif # CONFIG_JBD
 168
 169 ifneq ($(CONFIG_REGULATOR),)
 170   obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
 171 endif # CONFIG_REGULATOR
 172
 173 ifneq ($(CONFIG_SCSI),)
 174   obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
 175 endif # CONFIG_SCSI
 176
 177 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
 178
 179 # lock probe does not work, so disabling it for now
 180 #ifneq ($(CONFIG_LOCKDEP),)
 181 #  obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
 182 #endif # CONFIG_LOCKDEP
 183
 184 ifneq ($(CONFIG_BTRFS_FS),)
 185   btrfs_dep = $(srctree)/fs/btrfs/*.h
 186   ifneq ($(wildcard $(btrfs_dep)),)
 187     obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
 188   else
 189     $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
 190   endif # $(wildcard $(btrfs_dep))
 191 endif # CONFIG_BTRFS_FS
 192
 193 ifneq ($(CONFIG_COMPACTION),)
 194   # A dependency on internal header 'mm/internal.h' was introduced in v5.18
 195   compaction_dep = $(srctree)/mm/internal.h
 196   compaction_dep_wildcard = $(wildcard $(compaction_dep))
 197   compaction_dep_check = $(shell \
 198   if [ \( $(VERSION) -ge 6 \
 199      -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 18 \) \
 200      -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 14 -a $(RHEL_API_VERSION) -gt 1622301 \) \) -a \
 201      -z "$(compaction_dep_wildcard)" ] ; then \
 202     echo "warn" ; \
 203   else \
 204     echo "ok" ; \
 205   fi ;)
 206   ifeq ($(compaction_dep_check),ok)
 207     obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
 208   else
 209     $(warning Files $(compaction_dep) not found. Probe "compaction" is disabled. Use full kernel source tree to enable it.)
 210   endif # $(wildcard $(compaction_dep))
 211 endif # CONFIG_COMPACTION
 212
 213 ifneq ($(CONFIG_EXT4_FS),)
 214   ext4_dep = $(srctree)/fs/ext4/*.h
 215   ifneq ($(wildcard $(ext4_dep)),)
 216     obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
 217   else
 218     $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
 219   endif # $(wildcard $(ext4_dep))
 220 endif # CONFIG_EXT4_FS
 221
 222 obj-$(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;)
 226
 227 ifneq ($(CONFIG_FRAME_WARN),0)
 228   CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
 229 endif
 230
 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
 235 endif
 236
 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;)
 241
 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
 246   else
 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 $(regmap_dep_4_1)),
 249 endif # CONFIG_REGMAP
 250
 251 ifneq ($(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
 257
 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
 264
 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
 271
 272 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
 273
 274 ifneq ($(CONFIG_KALLSYMS_ALL),)
 275   obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
 276 else
 277   ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
 278     $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
 279   endif
 280 endif # CONFIG_KALLSYMS_ALL
 281
 282 ifneq ($(CONFIG_KPROBES),)
 283   obj-$(CONFIG_LTTNG) += lttng-kprobes.o
 284 endif # CONFIG_KPROBES
 285
 286 ifneq ($(CONFIG_UPROBES),)
 287   obj-$(CONFIG_LTTNG) += lttng-uprobes.o
 288 endif # CONFIG_UPROBES
 289
 290 ifneq ($(CONFIG_KRETPROBES),)
 291   obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
 292 endif # CONFIG_KRETPROBES
 293
 294 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
 295   obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
 296 endif # CONFIG_PREEMPTIRQ_EVENTS
 297
 298 # vim:syntax=make