probes/Kbuild

   1 # SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
   2
   3 TOP_LTTNG_MODULES_DIR := $(shell dirname $(lastword $(MAKEFILE_LIST)))/..
   4
   5 include $(TOP_LTTNG_MODULES_DIR)/Kbuild.common
   6
   7 ccflags-y += -I$(TOP_LTTNG_MODULES_DIR)
   8
   9 obj-$(CONFIG_LTTNG) += lttng-probe-sched.o
  10 obj-$(CONFIG_LTTNG) += lttng-probe-irq.o
  11 obj-$(CONFIG_LTTNG) += lttng-probe-timer.o
  12 obj-$(CONFIG_LTTNG) += lttng-probe-kmem.o
  13 obj-$(CONFIG_LTTNG) += lttng-probe-module.o
  14 obj-$(CONFIG_LTTNG) += lttng-probe-power.o
  15 obj-$(CONFIG_LTTNG) += lttng-probe-statedump.o
  16
  17 ifneq ($(CONFIG_NET_9P),)
  18   obj-$(CONFIG_LTTNG) +=  $(shell \
  19     if [ $(VERSION) -ge 4 \
  20       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -eq 10 \) ] ; then \
  21       echo "lttng-probe-9p.o" ; fi;)
  22 endif # CONFIG_NET_9P
  23
  24 i2c_dep = $(srctree)/include/trace/events/i2c.h
  25 ifneq ($(wildcard $(i2c_dep)),)
  26   obj-$(CONFIG_LTTNG) += lttng-probe-i2c.o
  27 endif
  28
  29 ifneq ($(CONFIG_KVM),)
  30   obj-$(CONFIG_LTTNG) += lttng-probe-kvm.o
  31   ifneq ($(CONFIG_X86),)
  32     ifneq ($(CONFIG_KALLSYMS_ALL),)
  33       kvm_dep_lapic = $(srctree)/arch/x86/kvm/lapic.h
  34       kvm_dep_lapic_check = $(wildcard $(kvm_dep_lapic))
  35       ifneq ($(kvm_dep_lapic_check),)
  36         # search for iodev.h in any of its known locations
  37         kvm_dep_iodev = $(srctree)/virt/kvm/iodev.h $(srctree)/include/kvm/iodev.h
  38         kvm_dep_iodev_check = $(wildcard $(kvm_dep_iodev))
  39         ifneq ($(kvm_dep_iodev_check),)
  40           kvm_dep_emulate = $(srctree)/arch/x86/kvm/kvm_emulate.h
  41           kvm_dep_emulate_wildcard = $(wildcard $(kvm_dep_emulate))
  42           kvm_dep_emulate_check = $(shell \
  43           if [ \( $(VERSION) -ge 6 \
  44              -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -eq 7 \) \
  45              -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -eq 18 -a $(RHEL_API_VERSION) -ge 2400000 \) \) -a \
  46              -z "$(kvm_dep_emulate_wildcard)" ] ; then \
  47             echo "warn" ; \
  48           else \
  49             echo "ok" ; \
  50           fi ;)
  51           ifeq ($(kvm_dep_emulate_check),ok)
  52             CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm \
  53                        -I$(srctree)/arch/x86/kvm
  54             CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm \
  55                        -I$(srctree)/arch/x86/kvm
  56             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
  57             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
  58           else # ($(kvm_dep_emulate_check),ok)
  59             $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  60           endif # ($(kvm_dep_emulate_check),ok)
  61         else # $(kvm_dep_iodev_check)
  62           $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  63         endif # $(kvm_dep_iodev_check)
  64       else # $(kvm_dep_lapic_check)
  65         $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  66       endif # $(kvm_dep_lapic_check)
  67     else
  68       $(warning CONFIG_KALLSYMS_ALL is disabled. Probe "kvm" x86-specific is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
  69     endif # CONFIG_KALLSYMS_ALL
  70   endif # CONFIG_X86
  71 endif # CONFIG_KVM
  72
  73 ifneq ($(CONFIG_X86),)
  74   x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
  75
  76   ifneq ($(wildcard $(x86_irq_vectors_dep)),)
  77     obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
  78   endif # $(wildcard $(x86_irq_vectors_dep))
  79
  80   x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
  81
  82   ifneq ($(wildcard $(x86_exceptions_dep)),)
  83     obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
  84   endif # $(wildcard $(x86_exceptions_dep))
  85 endif # CONFIG_X86
  86
  87 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
  88
  89 ifneq ($(CONFIG_BLOCK),)
  90   # need blk_cmd_buf_len
  91   ifneq ($(CONFIG_EVENT_TRACING),)
  92     obj-$(CONFIG_LTTNG) += lttng-probe-block.o
  93   endif # CONFIG_EVENT_TRACING
  94 endif # CONFIG_BLOCK
  95
  96 ifneq ($(CONFIG_NET),)
  97   obj-$(CONFIG_LTTNG) += lttng-probe-napi.o
  98   obj-$(CONFIG_LTTNG) += lttng-probe-skb.o
  99   obj-$(CONFIG_LTTNG) += lttng-probe-net.o
 100   obj-$(CONFIG_LTTNG) +=  $(shell \
 101     if [ $(VERSION) -ge 4 \
 102       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 103       echo "lttng-probe-sock.o" ; fi;)
 104   obj-$(CONFIG_LTTNG) +=  $(shell \
 105     if [ $(VERSION) -ge 4 \
 106       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 107       echo "lttng-probe-udp.o" ; fi;)
 108 endif # CONFIG_NET
 109
 110 ifneq ($(CONFIG_SND_SOC),)
 111   obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
 112 endif # CONFIG_SND_SOC
 113
 114 ifneq ($(CONFIG_EXT3_FS),)
 115   ext3_dep = $(srctree)/fs/ext3/*.h
 116   ext3_dep_check = $(wildcard $(ext3_dep))
 117   ext3 = $(shell \
 118     if [ $(VERSION) -lt 4 -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -lt 3 \) ] ; then \
 119       if [ $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 120         if [ \( $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) \) -a \
 121           -z "$(ext3_dep_check)" ] ; then \
 122           echo "warn" ; \
 123           exit ; \
 124         fi; \
 125         echo "lttng-probe-ext3.o" ; \
 126       fi; \
 127     fi;)
 128   ifeq ($(ext3),warn)
 129     $(warning Files $(ext3_dep) not found. Probe "ext3" is disabled. Use full kernel source tree to enable it.)
 130     ext3 =
 131   endif # $(ext3),warn
 132   obj-$(CONFIG_LTTNG) += $(ext3)
 133 endif # CONFIG_EXT3_FS
 134
 135 ifneq ($(CONFIG_GPIOLIB),)
 136   obj-$(CONFIG_LTTNG) +=  $(shell \
 137     if [ $(VERSION) -ge 3 ] ; then \
 138       echo "lttng-probe-gpio.o" ; fi;)
 139 endif # CONFIG_GPIOLIB
 140
 141 ifneq ($(CONFIG_JBD2),)
 142   obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
 143 endif # CONFIG_JBD2
 144
 145 ifneq ($(CONFIG_JBD),)
 146   obj-$(CONFIG_LTTNG) +=  $(shell \
 147     if [ $(VERSION) -ge 4 \
 148       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 149       echo "lttng-probe-jbd.o" ; fi;)
 150 endif # CONFIG_JBD
 151
 152 ifneq ($(CONFIG_REGULATOR),)
 153   obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
 154 endif # CONFIG_REGULATOR
 155
 156 ifneq ($(CONFIG_SCSI),)
 157   obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
 158 endif # CONFIG_SCSI
 159
 160 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
 161
 162 # lock probe does not work, so disabling it for now
 163 #ifneq ($(CONFIG_LOCKDEP),)
 164 #  obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
 165 #endif # CONFIG_LOCKDEP
 166
 167 ifneq ($(CONFIG_BTRFS_FS),)
 168   btrfs_dep = $(srctree)/fs/btrfs/*.h
 169   ifneq ($(wildcard $(btrfs_dep)),)
 170     obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
 171   else
 172     $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
 173   endif # $(wildcard $(btrfs_dep))
 174 endif # CONFIG_BTRFS_FS
 175
 176 ifneq ($(CONFIG_COMPACTION),)
 177   obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
 178 endif # CONFIG_COMPACTION
 179
 180 ifneq ($(CONFIG_EXT4_FS),)
 181   ext4_dep = $(srctree)/fs/ext4/*.h
 182   ifneq ($(wildcard $(ext4_dep)),)
 183     obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
 184   else
 185     $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
 186   endif # $(wildcard $(ext4_dep))
 187 endif # CONFIG_EXT4_FS
 188
 189 obj-$(CONFIG_LTTNG) +=  $(shell \
 190   if [ $(VERSION) -ge 4 \
 191     -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
 192     echo "lttng-probe-printk.o" ; fi;)
 193
 194 ifneq ($(CONFIG_FRAME_WARN),0)
 195   CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
 196 endif
 197
 198 # Introduced in v3.6, remove in v5.18
 199 random_dep = $(srctree)/include/trace/events/random.h
 200 ifneq ($(wildcard $(random_dep)),)
 201   obj-$(CONFIG_LTTNG) += lttng-probe-random.o
 202 endif
 203
 204 obj-$(CONFIG_LTTNG) +=  $(shell \
 205   if [ $(VERSION) -ge 4 \
 206     -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
 207     echo "lttng-probe-rcu.o" ; fi;)
 208
 209 ifneq ($(CONFIG_REGMAP),)
 210   regmap_dep_4_1 = $(srctree)/drivers/base/regmap/trace.h
 211   ifneq ($(wildcard $(regmap_dep_4_1)),)
 212     obj-$(CONFIG_LTTNG) += lttng-probe-regmap.o
 213   else
 214     $(warning File $(regmap_dep_4_1) not found. Probe "regmap" is disabled. Need Linux 4.1+ kernel source tree to enable it.)
 215   endif # $(wildcard $(regmap_dep_4_1)),
 216 endif # CONFIG_REGMAP
 217
 218 ifneq ($(CONFIG_PM_RUNTIME),)
 219   obj-$(CONFIG_LTTNG) +=  $(shell \
 220     if [ $(VERSION) -ge 4 \
 221       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
 222       echo "lttng-probe-rpm.o" ; fi;)
 223 endif # CONFIG_PM_RUNTIME
 224
 225 ifneq ($(CONFIG_SUNRPC),)
 226   obj-$(CONFIG_LTTNG) +=  $(shell \
 227     if [ $(VERSION) -ge 4 \
 228       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
 229       echo "lttng-probe-sunrpc.o" ; fi;)
 230 endif # CONFIG_SUNRPC
 231
 232 ifneq ($(CONFIG_VIDEO_V4L2),)
 233   obj-$(CONFIG_LTTNG) += $(shell \
 234     if [ $(VERSION) -ge 4 \
 235       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 14 \) ] ; then \
 236       echo "lttng-probe-v4l2.o" ; fi;)
 237 endif # CONFIG_VIDEO_V4L2
 238
 239 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
 240
 241 ifneq ($(CONFIG_KALLSYMS_ALL),)
 242   obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
 243 else
 244   ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
 245     $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
 246   endif
 247 endif # CONFIG_KALLSYMS_ALL
 248
 249 ifneq ($(CONFIG_KPROBES),)
 250   obj-$(CONFIG_LTTNG) += lttng-kprobes.o
 251 endif # CONFIG_KPROBES
 252
 253 ifneq ($(CONFIG_UPROBES),)
 254   obj-$(CONFIG_LTTNG) += lttng-uprobes.o
 255 endif # CONFIG_UPROBES
 256
 257 ifneq ($(CONFIG_KRETPROBES),)
 258   obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
 259 endif # CONFIG_KRETPROBES
 260
 261 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
 262   obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
 263 endif # CONFIG_PREEMPTIRQ_EVENTS
 264
 265 # vim:syntax=make