Version 2.7.7

[lttng-modules.git] / Makefile

diff --git a/Makefile b/Makefile
index 2da72989e4c75a27ab4270e891a5b2c6950cadff..731a38671a1e050528443e6252e79d88b609cc78 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,39 @@
 #
 
 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 = $(shell pwd)/include/generated/uapi/linux/version.h
+
+
+#
+# Check for stale version.h, which can be a leftover from an old Linux
+# kernel tree moved to a newer kernel version, only pruned by make
+# distclean.
+#
+ifneq ($(wildcard $(lttng_check_linux_version)),)
+ifneq ($(wildcard $(lttng_check_generated_linux_version)),)
+$(error Duplicate version.h files found in $(lttng_check_linux_version) and $(lttng_check_generated_linux_version). Consider running make distclean on your kernel, or removing the stale $(lttng_check_linux_version) file)
+endif
+endif
+
+ifneq ($(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
@@ -19,43 +51,56 @@ 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-hostname.o wrapper/random.o
-
-obj-m += lttng-statedump.o
-lttng-statedump-objs := lttng-statedump-impl.o wrapper/irqdesc.o \
-                       wrapper/fdtable.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
 
 ifneq ($(CONFIG_HAVE_SYSCALL_TRACEPOINTS),)
-lttng-tracer-objs += lttng-syscalls.o probes/lttng-probe-user.o
-endif
+lttng-tracer-objs += lttng-syscalls.o
+endif # CONFIG_HAVE_SYSCALL_TRACEPOINTS
 
 ifneq ($(CONFIG_PERF_EVENTS),)
 lttng-tracer-objs += $(shell \
        if [ $(VERSION) -ge 3 \
-               -o \( $(VERSION) -eq 2 -a $(PATCHLEVEL) -ge 6 -a $(SUBLEVEL) -ge 34 \) ] ; then \
+               -o \( $(VERSION) -eq 2 -a $(PATCHLEVEL) -ge 6 -a $(SUBLEVEL) -ge 33 \) ] ; then \
                echo "lttng-context-perf-counters.o" ; fi;)
-endif
+endif # CONFIG_PERF_EVENTS
+
+lttng-tracer-objs += $(shell \
+       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
-
-else
+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) $@
-endif
+       LTTNG_KERNELDIR=$(KERNELDIR) $(MAKE) -C $(KERNELDIR) M=$(PWD) $@
+endif # KERNELRELEASE