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 \( $(VERSION) -eq 6 -a $(PATCHLEVEL) -ge 0 \) \
  19    -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 14 -a $(RHEL_API_VERSION) -gt 1622301 \) \) -a \
  20    -z "$(kmem_dep_wildcard)" ] ; then \
  21   echo "warn" ; \
  22 else \
  23   echo "ok" ; \
  24 fi ;)
  25 ifeq ($(kmem_dep_check),ok)
  26   obj-$(CONFIG_LTTNG) += lttng-probe-kmem.o
  27 else
  28   $(warning File $(kmem_dep) not found. Probe "kmem" is disabled. Use full kernel source tree to enable it.)
  29 endif
  30
  31 obj-$(CONFIG_LTTNG) += lttng-probe-module.o
  32 obj-$(CONFIG_LTTNG) += lttng-probe-power.o
  33 obj-$(CONFIG_LTTNG) += lttng-probe-statedump.o
  34
  35 ifneq ($(CONFIG_NET_9P),)
  36   obj-$(CONFIG_LTTNG) += lttng-probe-9p.o
  37 endif # CONFIG_NET_9P
  38
  39 i2c_dep = $(srctree)/include/trace/events/i2c.h
  40 ifneq ($(wildcard $(i2c_dep)),)
  41   obj-$(CONFIG_LTTNG) += lttng-probe-i2c.o
  42 endif
  43
  44 ifneq ($(CONFIG_KVM),)
  45   obj-$(CONFIG_LTTNG) += lttng-probe-kvm.o
  46   ifneq ($(CONFIG_X86),)
  47     ifneq ($(CONFIG_KALLSYMS_ALL),)
  48       kvm_dep_lapic = $(srctree)/arch/x86/kvm/lapic.h
  49       kvm_dep_lapic_check = $(wildcard $(kvm_dep_lapic))
  50       ifneq ($(kvm_dep_lapic_check),)
  51         kvm_dep_iodev = $(srctree)/include/kvm/iodev.h
  52         kvm_dep_iodev_check = $(wildcard $(kvm_dep_iodev))
  53         ifneq ($(kvm_dep_iodev_check),)
  54           kvm_dep_emulate = $(srctree)/arch/x86/kvm/kvm_emulate.h
  55           kvm_dep_emulate_wildcard = $(wildcard $(kvm_dep_emulate))
  56           kvm_dep_emulate_check = $(shell \
  57           if [ \( $(VERSION) -ge 6 \
  58              -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -eq 7 \) \
  59              -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -eq 18 -a $(RHEL_API_VERSION) -ge 2400000 \) \) -a \
  60              -z "$(kvm_dep_emulate_wildcard)" ] ; then \
  61             echo "warn" ; \
  62           else \
  63             echo "ok" ; \
  64           fi ;)
  65           ifeq ($(kvm_dep_emulate_check),ok)
  66             CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm \
  67                        -I$(srctree)/arch/x86/kvm
  68             CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm \
  69                        -I$(srctree)/arch/x86/kvm
  70             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
  71             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
  72           else # ($(kvm_dep_emulate_check),ok)
  73             $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  74           endif # ($(kvm_dep_emulate_check),ok)
  75         else # $(kvm_dep_iodev_check)
  76           $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  77         endif # $(kvm_dep_iodev_check)
  78       else # $(kvm_dep_lapic_check)
  79         $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  80       endif # $(kvm_dep_lapic_check)
  81     else
  82       $(warning CONFIG_KALLSYMS_ALL is disabled. Probe "kvm" x86-specific is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
  83     endif # CONFIG_KALLSYMS_ALL
  84   endif # CONFIG_X86
  85 endif # CONFIG_KVM
  86
  87 ifneq ($(CONFIG_X86),)
  88   x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
  89
  90   ifneq ($(wildcard $(x86_irq_vectors_dep)),)
  91     obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
  92   endif # $(wildcard $(x86_irq_vectors_dep))
  93
  94   x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
  95
  96   ifneq ($(wildcard $(x86_exceptions_dep)),)
  97     obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
  98   endif # $(wildcard $(x86_exceptions_dep))
  99 endif # CONFIG_X86
 100
 101 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
 102
 103 ifneq ($(CONFIG_DMA_SHARED_BUFFER),)
 104   obj-$(CONFIG_LTTNG) += $(shell \
 105     if [ $(VERSION) -ge 5 \
 106        -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -ge 10 \) ] ; then \
 107       echo "lttng-probe-dma-fence.o" ; fi;)
 108 endif # CONFIG_DMA_SHARED_BUFFER
 109
 110 ifneq ($(CONFIG_BLOCK),)
 111   # need blk_cmd_buf_len
 112   ifneq ($(CONFIG_EVENT_TRACING),)
 113     obj-$(CONFIG_LTTNG) += lttng-probe-block.o
 114   endif # CONFIG_EVENT_TRACING
 115 endif # CONFIG_BLOCK
 116
 117 ifneq ($(CONFIG_NET),)
 118   obj-$(CONFIG_LTTNG) += lttng-probe-napi.o
 119   obj-$(CONFIG_LTTNG) += lttng-probe-skb.o
 120   obj-$(CONFIG_LTTNG) += lttng-probe-net.o
 121   obj-$(CONFIG_LTTNG) += lttng-probe-sock.o
 122   obj-$(CONFIG_LTTNG) += lttng-probe-udp.o
 123 endif # CONFIG_NET
 124
 125 ifneq ($(CONFIG_SND_SOC),)
 126   obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
 127 endif # CONFIG_SND_SOC
 128
 129 ifneq ($(CONFIG_GPIOLIB),)
 130   obj-$(CONFIG_LTTNG) += lttng-probe-gpio.o
 131 endif # CONFIG_GPIOLIB
 132
 133 ifneq ($(CONFIG_JBD2),)
 134   obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
 135 endif # CONFIG_JBD2
 136
 137 ifneq ($(CONFIG_JBD),)
 138   obj-$(CONFIG_LTTNG) += lttng-probe-jbd.o
 139 endif # CONFIG_JBD
 140
 141 ifneq ($(CONFIG_REGULATOR),)
 142   obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
 143 endif # CONFIG_REGULATOR
 144
 145 ifneq ($(CONFIG_SCSI),)
 146   obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
 147 endif # CONFIG_SCSI
 148
 149 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
 150
 151 # lock probe does not work, so disabling it for now
 152 #ifneq ($(CONFIG_LOCKDEP),)
 153 #  obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
 154 #endif # CONFIG_LOCKDEP
 155
 156 ifneq ($(CONFIG_BTRFS_FS),)
 157   btrfs_dep = $(srctree)/fs/btrfs/*.h
 158   ifneq ($(wildcard $(btrfs_dep)),)
 159     obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
 160   else
 161     $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
 162   endif # $(wildcard $(btrfs_dep))
 163 endif # CONFIG_BTRFS_FS
 164
 165 ifneq ($(CONFIG_COMPACTION),)
 166   # A dependency on internal header 'mm/internal.h' was introduced in v5.18
 167   compaction_dep = $(srctree)/mm/internal.h
 168   compaction_dep_wildcard = $(wildcard $(compaction_dep))
 169   compaction_dep_check = $(shell \
 170   if [ \( $(VERSION) -ge 6 \
 171      -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 18 \) \
 172      -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 14 -a $(RHEL_API_VERSION) -gt 1622301 \) \) -a \
 173      -z "$(compaction_dep_wildcard)" ] ; then \
 174     echo "warn" ; \
 175   else \
 176     echo "ok" ; \
 177   fi ;)
 178   ifeq ($(compaction_dep_check),ok)
 179     obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
 180   else
 181     $(warning Files $(compaction_dep) not found. Probe "compaction" is disabled. Use full kernel source tree to enable it.)
 182   endif # $(wildcard $(compaction_dep))
 183 endif # CONFIG_COMPACTION
 184
 185 ifneq ($(CONFIG_EXT4_FS),)
 186   ext4_dep = $(srctree)/fs/ext4/*.h
 187   ifneq ($(wildcard $(ext4_dep)),)
 188     obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
 189   else
 190     $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
 191   endif # $(wildcard $(ext4_dep))
 192 endif # CONFIG_EXT4_FS
 193
 194 obj-$(CONFIG_LTTNG) += lttng-probe-printk.o
 195
 196 ifneq ($(CONFIG_FRAME_WARN),0)
 197   CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
 198 endif
 199
 200 # Introduced in v3.6, remove in v5.18
 201 random_dep = $(srctree)/include/trace/events/random.h
 202 ifneq ($(wildcard $(random_dep)),)
 203   obj-$(CONFIG_LTTNG) += lttng-probe-random.o
 204 endif
 205
 206 obj-$(CONFIG_LTTNG) += lttng-probe-rcu.o
 207
 208 ifneq ($(CONFIG_REGMAP),)
 209   regmap_dep = $(srctree)/drivers/base/regmap/trace.h
 210   ifneq ($(wildcard $(regmap_dep)),)
 211     obj-$(CONFIG_LTTNG) += lttng-probe-regmap.o
 212   else
 213     $(warning File $(regmap_dep) not found. Probe "regmap" is disabled. Use full kernel source tree to enable it.)
 214   endif # $(wildcard $(regmap_dep)),
 215 endif # CONFIG_REGMAP
 216
 217 ifneq ($(CONFIG_PM_RUNTIME),)
 218   obj-$(CONFIG_LTTNG) += lttng-probe-rpm.o
 219 endif # CONFIG_PM_RUNTIME
 220
 221 ifneq ($(CONFIG_SUNRPC),)
 222   obj-$(CONFIG_LTTNG) += lttng-probe-sunrpc.o
 223 endif # CONFIG_SUNRPC
 224
 225 ifneq ($(CONFIG_VIDEO_V4L2),)
 226   obj-$(CONFIG_LTTNG) += lttng-probe-v4l2.o
 227 endif # CONFIG_VIDEO_V4L2
 228
 229 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
 230
 231 ifneq ($(CONFIG_KALLSYMS_ALL),)
 232   obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
 233 else
 234   ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
 235     $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
 236   endif
 237 endif # CONFIG_KALLSYMS_ALL
 238
 239 ifneq ($(CONFIG_KPROBES),)
 240   obj-$(CONFIG_LTTNG) += lttng-kprobes.o
 241 endif # CONFIG_KPROBES
 242
 243 ifneq ($(CONFIG_UPROBES),)
 244   obj-$(CONFIG_LTTNG) += lttng-uprobes.o
 245 endif # CONFIG_UPROBES
 246
 247 ifneq ($(CONFIG_KRETPROBES),)
 248   obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
 249 endif # CONFIG_KRETPROBES
 250
 251 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
 252   obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
 253 endif # CONFIG_PREEMPTIRQ_EVENTS
 254
 255 # vim:syntax=make