src/probes/Kbuild

   1 # SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
   2 # SPDX-FileCopyrightText: 2010-2024 EfficiOS Inc.
   3
   4 TOP_LTTNG_MODULES_DIR := $(shell dirname $(lastword $(MAKEFILE_LIST)))/../..
   5
   6 include $(TOP_LTTNG_MODULES_DIR)/src/Kbuild.common
   7
   8 ccflags-y += -I$(TOP_LTTNG_MODULES_DIR)/include
   9
  10 obj-$(CONFIG_LTTNG) += lttng-probe-sched.o
  11 obj-$(CONFIG_LTTNG) += lttng-probe-irq.o
  12 obj-$(CONFIG_LTTNG) += lttng-probe-timer.o
  13
  14 # A dependency on internal header 'mm/slab.h' was introduced in v6.0
  15 kmem_dep = $(srctree)/mm/slab.h
  16 kmem_dep_wildcard = $(wildcard $(kmem_dep))
  17 kmem_dep_check = $(shell \
  18 if [ \( $(VERSION) -ge 7 \
  19    -o \( $(VERSION) -eq 6 -a $(PATCHLEVEL) -ge 0 \) \
  20    -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 14 -a $(RHEL_API_VERSION) -gt 1622301 \) \) -a \
  21    -z "$(kmem_dep_wildcard)" ] ; then \
  22   echo "warn" ; \
  23 else \
  24   echo "ok" ; \
  25 fi ;)
  26 ifeq ($(kmem_dep_check),ok)
  27   obj-$(CONFIG_LTTNG) += lttng-probe-kmem.o
  28 else
  29   $(warning File $(kmem_dep) not found. Probe "kmem" is disabled. Use full kernel source tree to enable it.)
  30 endif
  31
  32 obj-$(CONFIG_LTTNG) += lttng-probe-module.o
  33 obj-$(CONFIG_LTTNG) += lttng-probe-power.o
  34 obj-$(CONFIG_LTTNG) += lttng-probe-statedump.o
  35
  36 ifneq ($(CONFIG_NET_9P),)
  37   obj-$(CONFIG_LTTNG) += lttng-probe-9p.o
  38 endif # CONFIG_NET_9P
  39
  40 i2c_dep = $(srctree)/include/trace/events/i2c.h
  41 ifneq ($(wildcard $(i2c_dep)),)
  42   obj-$(CONFIG_LTTNG) += lttng-probe-i2c.o
  43 endif
  44
  45 ifneq ($(CONFIG_KVM),)
  46   obj-$(CONFIG_LTTNG) += lttng-probe-kvm.o
  47   ifneq ($(CONFIG_X86),)
  48     ifneq ($(CONFIG_KALLSYMS_ALL),)
  49       kvm_dep_lapic = $(srctree)/arch/x86/kvm/lapic.h
  50       kvm_dep_lapic_check = $(wildcard $(kvm_dep_lapic))
  51       ifneq ($(kvm_dep_lapic_check),)
  52         kvm_dep_iodev = $(srctree)/include/kvm/iodev.h
  53         kvm_dep_iodev_check = $(wildcard $(kvm_dep_iodev))
  54         ifneq ($(kvm_dep_iodev_check),)
  55           kvm_dep_emulate = $(srctree)/arch/x86/kvm/kvm_emulate.h
  56           kvm_dep_emulate_wildcard = $(wildcard $(kvm_dep_emulate))
  57           kvm_dep_emulate_check = $(shell \
  58           if [ \( $(VERSION) -ge 6 \
  59              -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -eq 7 \) \
  60              -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -eq 18 -a $(RHEL_API_VERSION) -ge 2400000 \) \) -a \
  61              -z "$(kvm_dep_emulate_wildcard)" ] ; then \
  62             echo "warn" ; \
  63           else \
  64             echo "ok" ; \
  65           fi ;)
  66           ifeq ($(kvm_dep_emulate_check),ok)
  67             CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm \
  68                        -I$(srctree)/arch/x86/kvm
  69             CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm \
  70                        -I$(srctree)/arch/x86/kvm
  71             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
  72             obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
  73           else # ($(kvm_dep_emulate_check),ok)
  74             $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  75           endif # ($(kvm_dep_emulate_check),ok)
  76         else # $(kvm_dep_iodev_check)
  77           $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  78         endif # $(kvm_dep_iodev_check)
  79       else # $(kvm_dep_lapic_check)
  80         $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
  81       endif # $(kvm_dep_lapic_check)
  82     else
  83       $(warning CONFIG_KALLSYMS_ALL is disabled. Probe "kvm" x86-specific is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
  84     endif # CONFIG_KALLSYMS_ALL
  85   endif # CONFIG_X86
  86 endif # CONFIG_KVM
  87
  88 ifneq ($(CONFIG_X86),)
  89   x86_irq_vectors_dep = $(srctree)/arch/x86/include/asm/trace/irq_vectors.h
  90
  91   ifneq ($(wildcard $(x86_irq_vectors_dep)),)
  92     obj-$(CONFIG_LTTNG) += lttng-probe-x86-irq-vectors.o
  93   endif # $(wildcard $(x86_irq_vectors_dep))
  94
  95   x86_exceptions_dep = $(srctree)/arch/x86/include/asm/trace/exceptions.h
  96
  97   ifneq ($(wildcard $(x86_exceptions_dep)),)
  98     obj-$(CONFIG_LTTNG) += lttng-probe-x86-exceptions.o
  99   endif # $(wildcard $(x86_exceptions_dep))
 100 endif # CONFIG_X86
 101
 102 obj-$(CONFIG_LTTNG) += lttng-probe-signal.o
 103
 104 ifneq ($(CONFIG_DMA_SHARED_BUFFER),)
 105   obj-$(CONFIG_LTTNG) += $(shell \
 106     if [ $(VERSION) -ge 5 \
 107        -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -ge 10 \) ] ; then \
 108       echo "lttng-probe-dma-fence.o" ; fi;)
 109 endif # CONFIG_DMA_SHARED_BUFFER
 110
 111 ifneq ($(CONFIG_BLOCK),)
 112   # need blk_cmd_buf_len
 113   ifneq ($(CONFIG_EVENT_TRACING),)
 114     obj-$(CONFIG_LTTNG) += lttng-probe-block.o
 115   endif # CONFIG_EVENT_TRACING
 116 endif # CONFIG_BLOCK
 117
 118 ifneq ($(CONFIG_NET),)
 119   obj-$(CONFIG_LTTNG) += lttng-probe-napi.o
 120   obj-$(CONFIG_LTTNG) += lttng-probe-skb.o
 121   obj-$(CONFIG_LTTNG) += lttng-probe-net.o
 122   obj-$(CONFIG_LTTNG) += lttng-probe-sock.o
 123   obj-$(CONFIG_LTTNG) += lttng-probe-udp.o
 124 endif # CONFIG_NET
 125
 126 ifneq ($(CONFIG_SND_SOC),)
 127   obj-$(CONFIG_LTTNG) += lttng-probe-asoc.o
 128 endif # CONFIG_SND_SOC
 129
 130 ifneq ($(CONFIG_GPIOLIB),)
 131   obj-$(CONFIG_LTTNG) += lttng-probe-gpio.o
 132 endif # CONFIG_GPIOLIB
 133
 134 ifneq ($(CONFIG_JBD2),)
 135   obj-$(CONFIG_LTTNG) += lttng-probe-jbd2.o
 136 endif # CONFIG_JBD2
 137
 138 ifneq ($(CONFIG_JBD),)
 139   obj-$(CONFIG_LTTNG) += lttng-probe-jbd.o
 140 endif # CONFIG_JBD
 141
 142 ifneq ($(CONFIG_REGULATOR),)
 143   obj-$(CONFIG_LTTNG) += lttng-probe-regulator.o
 144 endif # CONFIG_REGULATOR
 145
 146 ifneq ($(CONFIG_SCSI),)
 147   obj-$(CONFIG_LTTNG) += lttng-probe-scsi.o
 148 endif # CONFIG_SCSI
 149
 150 obj-$(CONFIG_LTTNG) += lttng-probe-vmscan.o
 151
 152 # lock probe does not work, so disabling it for now
 153 #ifneq ($(CONFIG_LOCKDEP),)
 154 #  obj-$(CONFIG_LTTNG) += lttng-probe-lock.o
 155 #endif # CONFIG_LOCKDEP
 156
 157 ifneq ($(CONFIG_BTRFS_FS),)
 158   btrfs_dep = $(srctree)/fs/btrfs/*.h
 159   ifneq ($(wildcard $(btrfs_dep)),)
 160     obj-$(CONFIG_LTTNG) += lttng-probe-btrfs.o
 161   else
 162     $(warning Files $(btrfs_dep) not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.)
 163   endif # $(wildcard $(btrfs_dep))
 164 endif # CONFIG_BTRFS_FS
 165
 166 ifneq ($(CONFIG_COMPACTION),)
 167   # A dependency on internal header 'mm/internal.h' was introduced in v5.18
 168   compaction_dep = $(srctree)/mm/internal.h
 169   compaction_dep_wildcard = $(wildcard $(compaction_dep))
 170   compaction_dep_check = $(shell \
 171   if [ \( $(VERSION) -ge 6 \
 172      -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 18 \) \
 173      -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -ge 14 -a $(RHEL_API_VERSION) -gt 1622301 \) \) -a \
 174      -z "$(compaction_dep_wildcard)" ] ; then \
 175     echo "warn" ; \
 176   else \
 177     echo "ok" ; \
 178   fi ;)
 179   ifeq ($(compaction_dep_check),ok)
 180     obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
 181   else
 182     $(warning Files $(compaction_dep) not found. Probe "compaction" is disabled. Use full kernel source tree to enable it.)
 183   endif # $(wildcard $(compaction_dep))
 184 endif # CONFIG_COMPACTION
 185
 186 ifneq ($(CONFIG_EXT4_FS),)
 187   ext4_dep = $(srctree)/fs/ext4/*.h
 188   ifneq ($(wildcard $(ext4_dep)),)
 189     obj-$(CONFIG_LTTNG) += lttng-probe-ext4.o
 190   else
 191     $(warning Files $(ext4_dep) not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.)
 192   endif # $(wildcard $(ext4_dep))
 193 endif # CONFIG_EXT4_FS
 194
 195 obj-$(CONFIG_LTTNG) += lttng-probe-printk.o
 196
 197 ifneq ($(CONFIG_FRAME_WARN),0)
 198   CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
 199 endif
 200
 201 # Introduced in v3.6, remove in v5.18
 202 random_dep = $(srctree)/include/trace/events/random.h
 203 ifneq ($(wildcard $(random_dep)),)
 204   obj-$(CONFIG_LTTNG) += lttng-probe-random.o
 205 endif
 206
 207 obj-$(CONFIG_LTTNG) += lttng-probe-rcu.o
 208
 209 ifneq ($(CONFIG_REGMAP),)
 210   regmap_dep = $(srctree)/drivers/base/regmap/trace.h
 211   ifneq ($(wildcard $(regmap_dep)),)
 212     obj-$(CONFIG_LTTNG) += lttng-probe-regmap.o
 213   else
 214     $(warning File $(regmap_dep) not found. Probe "regmap" is disabled. Use full kernel source tree to enable it.)
 215   endif # $(wildcard $(regmap_dep)),
 216 endif # CONFIG_REGMAP
 217
 218 ifneq ($(CONFIG_PM_RUNTIME),)
 219   obj-$(CONFIG_LTTNG) += lttng-probe-rpm.o
 220 endif # CONFIG_PM_RUNTIME
 221
 222 ifneq ($(CONFIG_SUNRPC),)
 223   obj-$(CONFIG_LTTNG) += lttng-probe-sunrpc.o
 224 endif # CONFIG_SUNRPC
 225
 226 ifneq ($(CONFIG_VIDEO_V4L2),)
 227   obj-$(CONFIG_LTTNG) += lttng-probe-v4l2.o
 228 endif # CONFIG_VIDEO_V4L2
 229
 230 obj-$(CONFIG_LTTNG) += lttng-probe-workqueue.o
 231
 232 ifneq ($(CONFIG_KALLSYMS_ALL),)
 233   obj-$(CONFIG_LTTNG) += lttng-probe-writeback.o
 234 else
 235   ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
 236     $(warning CONFIG_KALLSYMS_ALL is disabled, therefore probe "writeback" is disabled. Rebuild your kernel with this configuration option enabled in order to trace this subsystem.)
 237   endif
 238 endif # CONFIG_KALLSYMS_ALL
 239
 240 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
 241   obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
 242 endif # CONFIG_PREEMPTIRQ_EVENTS
 243
 244 # vim:syntax=make