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$(srctree)/virt/kvm
  71             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
  72             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
  73           else # ($(kvm_dep_emulate_check),ok)
  74             $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  75           endif # ($(kvm_dep_emulate_check),ok)
  76         else # $(kvm_dep_iodev_check)
  77           $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  78         endif # $(kvm_dep_iodev_check)
  79       else # $(kvm_dep_lapic_check)
  80         $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  81       endif # $(kvm_dep_lapic_check)
  82     else
  83       $(warning CONFIG_KALLSYMS_ALL is disabled. Probe "kvm" x86-specific is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
  84     endif # CONFIG_KALLSYMS_ALL
  85   endif # CONFIG_X86
  86 endif # CONFIG_KVM
  87
  88 ifneq ($(CONFIG_X86),)
  89   x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
  90
  91   ifneq ($(wildcard $(x86_irq_vectors_dep)),)
  92     obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
  93   endif # $(wildcard $(x86_irq_vectors_dep))
  94
  95   x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
  96
  97   ifneq ($(wildcard $(x86_exceptions_dep)),)
  98     obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
  99   endif # $(wildcard $(x86_exceptions_dep))
 100 endif # CONFIG_X86
 101
 102 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
 103
 104 ifneq ($(CONFIG_DMA_SHARED_BUFFER),)
 105   obj-$(CONFIG_LTTNG) += $(shell \
 106     if [ $(VERSION) -ge 5 \
 107        -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -ge 10 \) ] ; then \
 108       echo "lttng-probe-dma-fence.o" ; fi;)
 109 endif # CONFIG_DMA_SHARED_BUFFER
 110
 111 ifneq ($(CONFIG_BLOCK),)
 112   # need blk_cmd_buf_len
 113   ifneq ($(CONFIG_EVENT_TRACING),)
 114     obj-$(CONFIG_LTTNG) += lttng-probe-block.o
 115   endif # CONFIG_EVENT_TRACING
 116 endif # CONFIG_BLOCK
 117
 118 ifneq ($(CONFIG_NET),)
 119   obj-$(CONFIG_LTTNG) += lttng-probe-napi.o
 120   obj-$(CONFIG_LTTNG) += lttng-probe-skb.o
 121   obj-$(CONFIG_LTTNG) += lttng-probe-net.o
 122   obj-$(CONFIG_LTTNG) +=  $(shell \
 123     if [ $(VERSION) -ge 4 \
 124       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 125       echo "lttng-probe-sock.o" ; fi;)
 126   obj-$(CONFIG_LTTNG) +=  $(shell \
 127     if [ $(VERSION) -ge 4 \
 128       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 129       echo "lttng-probe-udp.o" ; fi;)
 130 endif # CONFIG_NET
 131
 132 ifneq ($(CONFIG_SND_SOC),)
 133   obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
 134 endif # CONFIG_SND_SOC
 135
 136 ifneq ($(CONFIG_EXT3_FS),)
 137   ext3_dep = $(srctree)/fs/ext3/*.h
 138   ext3_dep_check = $(wildcard $(ext3_dep))
 139   ext3 = $(shell \
 140     if [ $(VERSION) -lt 4 -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -lt 3 \) ] ; then \
 141       if [ $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 142         if [ \( $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) \) -a \
 143           -z "$(ext3_dep_check)" ] ; then \
 144           echo "warn" ; \
 145           exit ; \
 146         fi; \
 147         echo "lttng-probe-ext3.o" ; \
 148       fi; \
 149     fi;)
 150   ifeq ($(ext3),warn)
 151     $(warning Files $(ext3_dep) not found. Probe "ext3" is disabled. Use full kernel source tree to enable it.)
 152     ext3 =
 153   endif # $(ext3),warn
 154   obj-$(CONFIG_LTTNG) += $(ext3)
 155 endif # CONFIG_EXT3_FS
 156
 157 ifneq ($(CONFIG_GPIOLIB),)
 158   obj-$(CONFIG_LTTNG) +=  $(shell \
 159     if [ $(VERSION) -ge 3 ] ; then \
 160       echo "lttng-probe-gpio.o" ; fi;)
 161 endif # CONFIG_GPIOLIB
 162
 163 ifneq ($(CONFIG_JBD2),)
 164   obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
 165 endif # CONFIG_JBD2
 166
 167 ifneq ($(CONFIG_JBD),)
 168   obj-$(CONFIG_LTTNG) +=  $(shell \
 169     if [ $(VERSION) -ge 4 \
 170       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 171       echo "lttng-probe-jbd.o" ; fi;)
 172 endif # CONFIG_JBD
 173
 174 ifneq ($(CONFIG_REGULATOR),)
 175   obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
 176 endif # CONFIG_REGULATOR
 177
 178 ifneq ($(CONFIG_SCSI),)
 179   obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
 180 endif # CONFIG_SCSI
 181
 182 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
 183
 184 # lock probe does not work, so disabling it for now
 185 #ifneq ($(CONFIG_LOCKDEP),)
 186 #  obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
 187 #endif # CONFIG_LOCKDEP
 188
 189 ifneq ($(CONFIG_BTRFS_FS),)
 190   btrfs_dep = $(srctree)/fs/btrfs/*.h
 191   ifneq ($(wildcard $(btrfs_dep)),)
 192     obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
 193   else
 194     $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
 195   endif # $(wildcard $(btrfs_dep))
 196 endif # CONFIG_BTRFS_FS
 197
 198 ifneq ($(CONFIG_COMPACTION),)
 199   # A dependency on internal header 'mm/internal.h' was introduced in v5.18
 200   compaction_dep = $(srctree)/mm/internal.h
 201   compaction_dep_wildcard = $(wildcard $(compaction_dep))
 202   compaction_dep_check = $(shell \
 203   if [ \( $(VERSION) -ge 6 \
 204      -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 18 \) \) -a \
 205      -z "$(compaction_dep_wildcard)" ] ; then \
 206     echo "warn" ; \
 207   else \
 208     echo "ok" ; \
 209   fi ;)
 210   ifeq ($(compaction_dep_check),ok)
 211     obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
 212   else
 213     $(warning Files $(compaction_dep) not found. Probe "compaction" is disabled. Use full kernel source tree to enable it.)
 214   endif # $(wildcard $(compaction_dep))
 215 endif # CONFIG_COMPACTION
 216
 217 ifneq ($(CONFIG_EXT4_FS),)
 218   ext4_dep = $(srctree)/fs/ext4/*.h
 219   ifneq ($(wildcard $(ext4_dep)),)
 220     obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
 221   else
 222     $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
 223   endif # $(wildcard $(ext4_dep))
 224 endif # CONFIG_EXT4_FS
 225
 226 obj-$(CONFIG_LTTNG) +=  $(shell \
 227   if [ $(VERSION) -ge 4 \
 228     -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
 229     echo "lttng-probe-printk.o" ; fi;)
 230
 231 ifneq ($(CONFIG_FRAME_WARN),0)
 232   CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
 233 endif
 234
 235 # Introduced in v3.6, remove in v5.18
 236 random_dep = $(srctree)/include/trace/events/random.h
 237 ifneq ($(wildcard $(random_dep)),)
 238   obj-$(CONFIG_LTTNG) += lttng-probe-random.o
 239 endif
 240
 241 obj-$(CONFIG_LTTNG) +=  $(shell \
 242   if [ $(VERSION) -ge 4 \
 243     -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
 244     echo "lttng-probe-rcu.o" ; fi;)
 245
 246 ifneq ($(CONFIG_REGMAP),)
 247   regmap_dep_4_1 = $(srctree)/drivers/base/regmap/trace.h
 248   ifneq ($(wildcard $(regmap_dep_4_1)),)
 249     obj-$(CONFIG_LTTNG) += lttng-probe-regmap.o
 250   else
 251     $(warning File $(regmap_dep_4_1) not found. Probe "regmap" is disabled. Need Linux 4.1+ kernel source tree to enable it.)
 252   endif # $(wildcard $(regmap_dep_4_1)),
 253 endif # CONFIG_REGMAP
 254
 255 ifneq ($(CONFIG_PM_RUNTIME),)
 256   obj-$(CONFIG_LTTNG) +=  $(shell \
 257     if [ $(VERSION) -ge 4 \
 258       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
 259       echo "lttng-probe-rpm.o" ; fi;)
 260 endif # CONFIG_PM_RUNTIME
 261
 262 ifneq ($(CONFIG_SUNRPC),)
 263   obj-$(CONFIG_LTTNG) +=  $(shell \
 264     if [ $(VERSION) -ge 4 \
 265       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
 266       echo "lttng-probe-sunrpc.o" ; fi;)
 267 endif # CONFIG_SUNRPC
 268
 269 ifneq ($(CONFIG_VIDEO_V4L2),)
 270   obj-$(CONFIG_LTTNG) += $(shell \
 271     if [ $(VERSION) -ge 4 \
 272       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 14 \) ] ; then \
 273       echo "lttng-probe-v4l2.o" ; fi;)
 274 endif # CONFIG_VIDEO_V4L2
 275
 276 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
 277
 278 ifneq ($(CONFIG_KALLSYMS_ALL),)
 279   obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
 280 else
 281   ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
 282     $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
 283   endif
 284 endif # CONFIG_KALLSYMS_ALL
 285
 286 ifneq ($(CONFIG_KPROBES),)
 287   obj-$(CONFIG_LTTNG) += lttng-kprobes.o
 288 endif # CONFIG_KPROBES
 289
 290 ifneq ($(CONFIG_UPROBES),)
 291   obj-$(CONFIG_LTTNG) += lttng-uprobes.o
 292 endif # CONFIG_UPROBES
 293
 294 ifneq ($(CONFIG_KRETPROBES),)
 295   obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
 296 endif # CONFIG_KRETPROBES
 297
 298 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
 299   obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
 300 endif # CONFIG_PREEMPTIRQ_EVENTS
 301
 302 # vim:syntax=make