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