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-$(CONFIG_LTTNG) += lttng-probe-timer.o
  12 obj-$(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     kvm_dep_lapic = $(srctree)/arch/x86/kvm/lapic.h
  33     kvm_dep_lapic_check = $(wildcard $(kvm_dep_lapic))
  34     ifneq ($(kvm_dep_lapic_check),)
  35       # search for iodev.h in any of its known locations
  36       kvm_dep_iodev = $(srctree)/virt/kvm/iodev.h $(srctree)/include/kvm/iodev.h
  37       kvm_dep_iodev_check = $(wildcard $(kvm_dep_iodev))
  38       ifneq ($(kvm_dep_iodev_check),)
  39         kvm_dep_emulate = $(srctree)/arch/x86/kvm/kvm_emulate.h
  40         kvm_dep_emulate_wildcard = $(wildcard $(kvm_dep_emulate))
  41         kvm_dep_emulate_check = $(shell \
  42         if [ \( $(VERSION) -ge 6 \
  43            -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -eq 7 \) \) -a \
  44            -z "$(kvm_dep_emulate_wildcard)" ] ; then \
  45           echo "warn" ; \
  46         else \
  47           echo "ok" ; \
  48         fi ;)
  49         ifeq ($(kvm_dep_emulate_check),ok)
  50           CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm \
  51                      -I$(srctree)/arch/x86/kvm
  52           CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm
  53           obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
  54           obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
  55         else # ($(kvm_dep_emulate_check),ok)
  56           $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  57         endif # ($(kvm_dep_emulate_check),ok)
  58       else # $(kvm_dep_iodev_check)
  59         $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  60       endif # $(kvm_dep_iodev_check)
  61     else # $(kvm_dep_lapic_check)
  62       $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  63     endif # $(kvm_dep_lapic_check)
  64   endif # CONFIG_X86
  65 endif # CONFIG_KVM
  66
  67 ifneq ($(CONFIG_X86),)
  68   x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
  69
  70   ifneq ($(wildcard $(x86_irq_vectors_dep)),)
  71     obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
  72   endif # $(wildcard $(x86_irq_vectors_dep))
  73
  74   x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
  75
  76   ifneq ($(wildcard $(x86_exceptions_dep)),)
  77     obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
  78   endif # $(wildcard $(x86_exceptions_dep))
  79 endif # CONFIG_X86
  80
  81 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
  82
  83 ifneq ($(CONFIG_BLOCK),)
  84   # need blk_cmd_buf_len
  85   ifneq ($(CONFIG_EVENT_TRACING),)
  86     obj-$(CONFIG_LTTNG) += lttng-probe-block.o
  87   endif # CONFIG_EVENT_TRACING
  88 endif # CONFIG_BLOCK
  89
  90 ifneq ($(CONFIG_NET),)
  91   obj-$(CONFIG_LTTNG) += lttng-probe-napi.o
  92   obj-$(CONFIG_LTTNG) += lttng-probe-skb.o
  93   obj-$(CONFIG_LTTNG) += lttng-probe-net.o
  94   obj-$(CONFIG_LTTNG) +=  $(shell \
  95     if [ $(VERSION) -ge 4 \
  96       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
  97       echo "lttng-probe-sock.o" ; fi;)
  98   obj-$(CONFIG_LTTNG) +=  $(shell \
  99     if [ $(VERSION) -ge 4 \
 100       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 101       echo "lttng-probe-udp.o" ; fi;)
 102 endif # CONFIG_NET
 103
 104 ifneq ($(CONFIG_SND_SOC),)
 105   obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
 106 endif # CONFIG_SND_SOC
 107
 108 ifneq ($(CONFIG_EXT3_FS),)
 109   ext3_dep = $(srctree)/fs/ext3/*.h
 110   ext3_dep_check = $(wildcard $(ext3_dep))
 111   ext3 = $(shell \
 112     if [ $(VERSION) -lt 4 -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -lt 3 \) ] ; then \
 113       if [ $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 114         if [ \( $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) \) -a \
 115           -z "$(ext3_dep_check)" ] ; then \
 116           echo "warn" ; \
 117           exit ; \
 118         fi; \
 119         echo "lttng-probe-ext3.o" ; \
 120       fi; \
 121     fi;)
 122   ifeq ($(ext3),warn)
 123     $(warning Files $(ext3_dep) not found. Probe "ext3" is disabled. Use full kernel source tree to enable it.)
 124     ext3 =
 125   endif # $(ext3),warn
 126   obj-$(CONFIG_LTTNG) += $(ext3)
 127 endif # CONFIG_EXT3_FS
 128
 129 ifneq ($(CONFIG_GPIOLIB),)
 130   obj-$(CONFIG_LTTNG) +=  $(shell \
 131     if [ $(VERSION) -ge 3 ] ; then \
 132       echo "lttng-probe-gpio.o" ; fi;)
 133 endif # CONFIG_GPIOLIB
 134
 135 ifneq ($(CONFIG_JBD2),)
 136   obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
 137 endif # CONFIG_JBD2
 138
 139 ifneq ($(CONFIG_JBD),)
 140   obj-$(CONFIG_LTTNG) +=  $(shell \
 141     if [ $(VERSION) -ge 4 \
 142       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
 143       echo "lttng-probe-jbd.o" ; fi;)
 144 endif # CONFIG_JBD
 145
 146 ifneq ($(CONFIG_REGULATOR),)
 147   obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
 148 endif # CONFIG_REGULATOR
 149
 150 ifneq ($(CONFIG_SCSI),)
 151   obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
 152 endif # CONFIG_SCSI
 153
 154 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
 155
 156 # lock probe does not work, so disabling it for now
 157 #ifneq ($(CONFIG_LOCKDEP),)
 158 #  obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
 159 #endif # CONFIG_LOCKDEP
 160
 161 ifneq ($(CONFIG_BTRFS_FS),)
 162   btrfs_dep = $(srctree)/fs/btrfs/*.h
 163   ifneq ($(wildcard $(btrfs_dep)),)
 164     obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
 165   else
 166     $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
 167   endif # $(wildcard $(btrfs_dep))
 168 endif # CONFIG_BTRFS_FS
 169
 170 # A dependency on internal header 'mm/internal.h' was introduced in v5.18
 171 compaction_dep = $(srctree)/mm/internal.h
 172 compaction_dep_wildcard = $(wildcard $(compaction_dep))
 173 compaction_dep_check = $(shell \
 174 if [ \( $(VERSION) -ge 6 \
 175    -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 18 \) \) -a \
 176    -z "$(compaction_dep_wildcard)" ] ; then \
 177   echo "warn" ; \
 178 else \
 179   echo "ok" ; \
 180 fi ;)
 181 ifeq ($(compaction_dep_check),ok)
 182   obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
 183 else
 184   $(warning Files $(compaction_dep) not found. Probe "compaction" is disabled. Use full kernel source tree to enable it.)
 185 endif # $(wildcard $(compaction_dep))
 186
 187 ifneq ($(CONFIG_EXT4_FS),)
 188   ext4_dep = $(srctree)/fs/ext4/*.h
 189   ifneq ($(wildcard $(ext4_dep)),)
 190     obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
 191   else
 192     $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
 193   endif # $(wildcard $(ext4_dep))
 194 endif # CONFIG_EXT4_FS
 195
 196 obj-$(CONFIG_LTTNG) +=  $(shell \
 197   if [ $(VERSION) -ge 4 \
 198     -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
 199     echo "lttng-probe-printk.o" ; fi;)
 200
 201 ifneq ($(CONFIG_FRAME_WARN),0)
 202   CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
 203 endif
 204
 205 # Introduced in v3.6, remove in v5.18
 206 obj-$(CONFIG_LTTNG) +=  $(shell \
 207     if [ \( ! \( $(VERSION) -ge 6 -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 18 \) \) \) \
 208       -a \
 209       $(VERSION) -ge 4 \
 210       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 6 \) \
 211       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -eq 5 -a $(SUBLEVEL) -ge 2 \) \
 212       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -eq 4 -a $(SUBLEVEL) -ge 9 \) \
 213       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -eq 0 -a $(SUBLEVEL) -ge 41 \) ] ; then \
 214       echo "lttng-probe-random.o" ; fi;)
 215
 216 obj-$(CONFIG_LTTNG) +=  $(shell \
 217   if [ $(VERSION) -ge 4 \
 218     -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
 219     echo "lttng-probe-rcu.o" ; fi;)
 220
 221 ifneq ($(CONFIG_REGMAP),)
 222   regmap_dep_4_1 = $(srctree)/drivers/base/regmap/trace.h
 223   ifneq ($(wildcard $(regmap_dep_4_1)),)
 224     obj-$(CONFIG_LTTNG) += lttng-probe-regmap.o
 225   else
 226     $(warning File $(regmap_dep_4_1) not found. Probe "regmap" is disabled. Need Linux 4.1+ kernel source tree to enable it.)
 227   endif # $(wildcard $(regmap_dep_4_1)),
 228 endif # CONFIG_REGMAP
 229
 230 ifneq ($(CONFIG_PM_RUNTIME),)
 231   obj-$(CONFIG_LTTNG) +=  $(shell \
 232     if [ $(VERSION) -ge 4 \
 233       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
 234       echo "lttng-probe-rpm.o" ; fi;)
 235 endif # CONFIG_PM_RUNTIME
 236
 237 ifneq ($(CONFIG_SUNRPC),)
 238   obj-$(CONFIG_LTTNG) +=  $(shell \
 239     if [ $(VERSION) -ge 4 \
 240       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
 241       echo "lttng-probe-sunrpc.o" ; fi;)
 242 endif # CONFIG_SUNRPC
 243
 244 ifneq ($(CONFIG_VIDEO_V4L2),)
 245   obj-$(CONFIG_LTTNG) += $(shell \
 246     if [ $(VERSION) -ge 4 \
 247       -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 14 \) ] ; then \
 248       echo "lttng-probe-v4l2.o" ; fi;)
 249 endif # CONFIG_VIDEO_V4L2
 250
 251 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
 252
 253 ifneq ($(CONFIG_KALLSYMS_ALL),)
 254   obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
 255 else
 256   ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
 257     $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
 258   endif
 259 endif # CONFIG_KALLSYMS_ALL
 260
 261 ifneq ($(CONFIG_KPROBES),)
 262   obj-$(CONFIG_LTTNG) += lttng-kprobes.o
 263 endif # CONFIG_KPROBES
 264
 265 ifneq ($(CONFIG_UPROBES),)
 266   obj-$(CONFIG_LTTNG) += lttng-uprobes.o
 267 endif # CONFIG_UPROBES
 268
 269 ifneq ($(CONFIG_KRETPROBES),)
 270   obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
 271 endif # CONFIG_KRETPROBES
 272
 273 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
 274   obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
 275 endif # CONFIG_PREEMPTIRQ_EVENTS
 276
 277 # vim:syntax=make