Version 2.7.7

[lttng-modules.git] / Makefile

diff --git a/Makefile b/Makefile
index 35d765e0229ba665f541be63afe91013a676c7d3..731a38671a1e050528443e6252e79d88b609cc78 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -3,11 +3,20 @@
 #
 
 ifneq ($(KERNELRELEASE),)
-ifneq ($(CONFIG_TRACEPOINTS),)
+
+ifdef CONFIG_LOCALVERSION      # Check if dot-config is included.
+ifeq ($(CONFIG_TRACEPOINTS),)
+$(error The option CONFIG_TRACEPOINTS needs to be enabled in your kernel configuration)
+endif # CONFIG_TRACEPOINTS
+endif # ifdef CONFIG_LOCALVERSION
+
+KERNELDIR = ${LTTNG_KERNELDIR}
+MAKEFILEDIR = $(shell dirname $(lastword $(MAKEFILE_LIST)))
 
 lttng_check_linux_version = $(shell pwd)/include/linux/version.h
 lttng_check_generated_linux_version = $(shell pwd)/include/generated/uapi/linux/version.h
 
+
 #
 # Check for stale version.h, which can be a leftover from an old Linux
 # kernel tree moved to a newer kernel version, only pruned by make
@@ -19,6 +28,15 @@ $(error Duplicate version.h files found in $(lttng_check_linux_version) and $(lt
 endif
 endif
 
+ifneq ($(shell \
+       if [ $(VERSION) -ge 5 \
+               -o \( $(VERSION) -eq 4 -a $(PATCHLEVEL) -ge 8 \) ] ; then \
+               echo "true" ; fi;),)
+$(warning You are entering uncharted territories adventurer! Proceed with utmost caution (also, lttng-modules 2.7 does not support Linux >= 4.8. You should upgrade to a newer lttng-modules version.))
+endif
+
+include $(MAKEFILEDIR)/Makefile.ABI.workarounds
+
 obj-m += lttng-ring-buffer-client-discard.o
 obj-m += lttng-ring-buffer-client-overwrite.o
 obj-m += lttng-ring-buffer-metadata-client.o
@@ -33,22 +51,20 @@ lttng-tracer-objs :=  lttng-events.o lttng-abi.o \
                        lttng-context-prio.o lttng-context-nice.o \
                        lttng-context-vpid.o lttng-context-tid.o \
                        lttng-context-vtid.o lttng-context-ppid.o \
-                       lttng-context-vppid.o lttng-calibrate.o \
+                       lttng-context-vppid.o lttng-context-cpu-id.o \
+                       lttng-calibrate.o \
                        lttng-context-hostname.o wrapper/random.o \
                        probes/lttng.o wrapper/trace-clock.o \
+                       wrapper/page_alloc.o \
                        lttng-tracker-pid.o \
                        lttng-filter.o lttng-filter-interpreter.o \
                        lttng-filter-specialize.o \
                        lttng-filter-validator.o \
                        probes/lttng-probe-user.o
 
-obj-m += lttng-statedump.o
-lttng-statedump-objs := lttng-statedump-impl.o wrapper/irqdesc.o \
-                       wrapper/fdtable.o
-
-#ifneq ($(CONFIG_HAVE_SYSCALL_TRACEPOINTS),)
-#lttng-tracer-objs += lttng-syscalls.o
-#endif # CONFIG_HAVE_SYSCALL_TRACEPOINTS
+ifneq ($(CONFIG_HAVE_SYSCALL_TRACEPOINTS),)
+lttng-tracer-objs += lttng-syscalls.o
+endif # CONFIG_HAVE_SYSCALL_TRACEPOINTS
 
 ifneq ($(CONFIG_PERF_EVENTS),)
 lttng-tracer-objs += $(shell \
@@ -58,28 +74,33 @@ lttng-tracer-objs += $(shell \
 endif # CONFIG_PERF_EVENTS
 
 lttng-tracer-objs += $(shell \
-       if [ $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 15 -a $(SUBLEVEL) -ge 0 ] ; then \
+       if [ $(VERSION) -ge 4 \
+               -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 15 -a $(SUBLEVEL) -ge 0 \) ] ; then \
                echo "lttng-tracepoint.o" ; fi;)
 
+obj-m += lttng-statedump.o
+lttng-statedump-objs := lttng-statedump-impl.o wrapper/irqdesc.o \
+                       wrapper/fdtable.o
+
 obj-m += probes/
 obj-m += lib/
 
-endif # CONFIG_TRACEPOINTS
-
 else # KERNELRELEASE
        KERNELDIR ?= /lib/modules/$(shell uname -r)/build
        PWD := $(shell pwd)
        CFLAGS = $(EXTCFLAGS)
 
-default:
-       $(MAKE) -C $(KERNELDIR) M=$(PWD) modules
+default: modules
+
+modules:
+       LTTNG_KERNELDIR=$(KERNELDIR) $(MAKE) -C $(KERNELDIR) M=$(PWD) modules
 
 modules_install:
-       $(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install
+       LTTNG_KERNELDIR=$(KERNELDIR) $(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install
 
 clean:
-       $(MAKE) -C $(KERNELDIR) M=$(PWD) clean
+       LTTNG_KERNELDIR=$(KERNELDIR) $(MAKE) -C $(KERNELDIR) M=$(PWD) clean
 
 %.i: %.c
-       $(MAKE) -C $(KERNELDIR) M=$(PWD) $@
+       LTTNG_KERNELDIR=$(KERNELDIR) $(MAKE) -C $(KERNELDIR) M=$(PWD) $@
 endif # KERNELRELEASE