X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=probes%2FMakefile;h=1f3c6ad23bddab79147670dce71e4d4764d326c7;hb=e1f8bfedcc77b4d95f1efc6b7bb16306cd1b1701;hp=f98f2c5995833e0437b95b918cee5e472e981711;hpb=e09a6084cebc7bb97d9c39cd91c391a3c6ac080c;p=lttng-modules.git

diff --git a/probes/Makefile b/probes/Makefile
index f98f2c59..1f3c6ad2 100644
--- a/probes/Makefile
+++ b/probes/Makefile
@@ -24,8 +24,14 @@ kvm_dep = $(srctree)/virt/kvm/iodev.h
 ifneq ($(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
@@ -210,6 +216,8 @@ obj-m +=  $(shell \
 	if [ $(VERSION) -ge 3 \
 		-o \( $(VERSION) -eq 2 -a $(PATCHLEVEL) -ge 6 -a $(SUBLEVEL) -ge 36 \) ] ; then \
 		echo "lttng-probe-writeback.o" ; fi;)
+else
+$(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.)
 endif