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