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