Fix: version checks for kernel 4.0

[lttng-modules.git] / probes / Makefile

diff --git a/probes/Makefile b/probes/Makefile
index 081136a2a3dd91686d1f446afa3a848ce5f14640..f0325c875e2cb3f233fdd1c3181794c0e20dc5dd 100644 (file)
--- a/probes/Makefile
+++ b/probes/Makefile
@@ -5,6 +5,10 @@
 ifneq ($(KERNELRELEASE),)
 ifneq ($(CONFIG_TRACEPOINTS),)
 
+KERNELDIR=${LTTNG_KERNELDIR}
+
+include $(KBUILD_EXTMOD)/Makefile.ABI.workarounds
+
 ccflags-y += -I$(PWD)/probes
 obj-m += lttng-types.o
 
@@ -20,12 +24,18 @@ obj-m += lttng-probe-statedump.o
 ifneq ($(CONFIG_KVM),)
 obj-m += lttng-probe-kvm.o
 ifneq ($(CONFIG_X86),)
-kvm_dep = $(srctree)/virt/kvm/iodev.h
+kvm_dep = $(srctree)/virt/kvm/iodev.h $(srctree)/include/kvm/iodev.h
 ifneq ($(wildcard $(kvm_dep)),)
 CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm
 CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm
-obj-m += lttng-probe-kvm-x86.o
-obj-m += lttng-probe-kvm-x86-mmu.o
+obj-m +=  $(shell \
+       if [ $(VERSION) -ge 3 \
+               -o \( $(VERSION) -eq 2 -a $(PATCHLEVEL) -ge 6 -a $(SUBLEVEL) -ge 38 \) ] ; then \
+               echo "lttng-probe-kvm-x86.o" ; fi;)
+obj-m +=  $(shell \
+       if [ $(VERSION) -ge 3 \
+               -o \( $(VERSION) -eq 2 -a $(PATCHLEVEL) -ge 6 -a $(SUBLEVEL) -ge 38 \) ] ; then \
+               echo "lttng-probe-kvm-x86-mmu.o" ; fi;)
 else
 $(warning File $(kvm_dep) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
 endif
@@ -51,10 +61,12 @@ obj-m +=  $(shell \
                -o \( $(VERSION) -eq 2 -a $(PATCHLEVEL) -ge 6 -a $(SUBLEVEL) -ge 37 \) ] ; then \
                echo "lttng-probe-net.o" ; fi;)
 obj-m +=  $(shell \
-       if [ $(VERSION) -ge 3 -a $(PATCHLEVEL) -ge 1 ] ; then \
+       if [ $(VERSION) -ge 4 \
+               -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
                echo "lttng-probe-sock.o" ; fi;)
 obj-m +=  $(shell \
-       if [ $(VERSION) -ge 3 -a $(PATCHLEVEL) -ge 1 ] ; then \
+       if [ $(VERSION) -ge 4 \
+               -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
                echo "lttng-probe-udp.o" ; fi;)
 endif
 
@@ -69,8 +81,8 @@ ifneq ($(CONFIG_EXT3_FS),)
 ext3_dep = $(srctree)/fs/ext3/*.h
 ext3_dep_check = $(wildcard $(ext3_dep))
 ext3 = $(shell \
-       if [ $(VERSION) -ge 3 -a $(PATCHLEVEL) -ge 1 ] ; then \
-               if [ $(VERSION) -ge 3 -a $(PATCHLEVEL) -ge 4 -a \
+       if [ $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
+               if [ \( $(VERSION) -ge 4 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) \) -a \
                        -z "$(ext3_dep_check)" ] ; then \
                        echo "warn" ; \
                        exit ; \
@@ -96,7 +108,8 @@ endif
 
 ifneq ($(CONFIG_JBD),)
 obj-m +=  $(shell \
-       if [ $(VERSION) -ge 3 -a $(PATCHLEVEL) -ge 1 ] ; then \
+       if [ $(VERSION) -ge 4 \
+               -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 1 \) ] ; then \
                echo "lttng-probe-jbd.o" ; fi;)
 endif
 
@@ -162,7 +175,8 @@ obj-m += $(ext4)
 endif
 
 obj-m +=  $(shell \
-       if [ $(VERSION) -ge 3 -a $(PATCHLEVEL) -ge 4 ] ; then \
+       if [ $(VERSION) -ge 4 \
+               -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 4 \) ] ; then \
                echo "lttng-probe-printk.o" ; fi;)
 ifneq ($(CONFIG_FRAME_WARN),0)
 CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
@@ -182,10 +196,12 @@ obj-m +=  $(shell \
                echo "lttng-probe-rcu.o" ; fi;)
 
 ifneq ($(CONFIG_REGMAP),)
-obj-m +=  $(shell \
-       if [ $(VERSION) -ge 4 \
-               \( -o $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 2 \) ] ; then \
-               echo "lttng-probe-regmap.o" ; fi;)
+regmap_dep_4_1 = $(srctree)/drivers/base/regmap/trace.h
+ifneq ($(wildcard $(regmap_dep_4_1)),)
+obj-m += lttng-probe-regmap.o
+else
+$(warning File $(regmap_dep_4_1) not found. Probe "regmap" is disabled. Need Linux 4.1+ kernel source tree to enable it.)
+endif
 endif
 
 ifneq ($(CONFIG_PM_RUNTIME),)