Makefile

   1 #
   2 # Makefile for the LTT objects.
   3 #
   4
   5 ifneq ($(KERNELRELEASE),)
   6 ifneq ($(CONFIG_TRACEPOINTS),)
   7
   8 KERNELDIR = ${LTTNG_KERNELDIR}
   9 MAKEFILEDIR = $(shell dirname $(lastword $(MAKEFILE_LIST)))
  10
  11 lttng_check_linux_version = $(shell pwd)/include/linux/version.h
  12 lttng_check_generated_linux_version = $(shell pwd)/include/generated/uapi/linux/version.h
  13
  14
  15 #
  16 # Check for stale version.h, which can be a leftover from an old Linux
  17 # kernel tree moved to a newer kernel version, only pruned by make
  18 # distclean.
  19 #
  20 ifneq ($(wildcard $(lttng_check_linux_version)),)
  21 ifneq ($(wildcard $(lttng_check_generated_linux_version)),)
  22 $(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)
  23 endif
  24 endif
  25
  26 include $(MAKEFILEDIR)/Makefile.ABI.workarounds
  27
  28 obj-m += lttng-ring-buffer-client-discard.o
  29 obj-m += lttng-ring-buffer-client-overwrite.o
  30 obj-m += lttng-ring-buffer-metadata-client.o
  31 obj-m += lttng-ring-buffer-client-mmap-discard.o
  32 obj-m += lttng-ring-buffer-client-mmap-overwrite.o
  33 obj-m += lttng-ring-buffer-metadata-mmap-client.o
  34
  35 obj-m += lttng-tracer.o
  36 lttng-tracer-objs :=  lttng-events.o lttng-abi.o \
  37                         lttng-probes.o lttng-context.o \
  38                         lttng-context-pid.o lttng-context-procname.o \
  39                         lttng-context-prio.o lttng-context-nice.o \
  40                         lttng-context-vpid.o lttng-context-tid.o \
  41                         lttng-context-vtid.o lttng-context-ppid.o \
  42                         lttng-context-vppid.o lttng-calibrate.o \
  43                         lttng-context-hostname.o wrapper/random.o \
  44                         probes/lttng.o wrapper/trace-clock.o \
  45                         wrapper/page_alloc.o
  46
  47 obj-m += lttng-statedump.o
  48 lttng-statedump-objs := lttng-statedump-impl.o wrapper/irqdesc.o \
  49                         wrapper/fdtable.o
  50
  51 ifneq ($(CONFIG_HAVE_SYSCALL_TRACEPOINTS),)
  52 lttng-tracer-objs += lttng-syscalls.o probes/lttng-probe-user.o
  53 endif # CONFIG_HAVE_SYSCALL_TRACEPOINTS
  54
  55 ifneq ($(CONFIG_PERF_EVENTS),)
  56 lttng-tracer-objs += $(shell \
  57         if [ $(VERSION) -ge 3 \
  58                 -o \( $(VERSION) -eq 2 -a $(PATCHLEVEL) -ge 6 -a $(SUBLEVEL) -ge 33 \) ] ; then \
  59                 echo "lttng-context-perf-counters.o" ; fi;)
  60 endif # CONFIG_PERF_EVENTS
  61
  62 lttng-tracer-objs += $(shell \
  63         if [ $(VERSION) -ge 4 \
  64                 -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 15 -a $(SUBLEVEL) -ge 0 \) ] ; then \
  65                 echo "lttng-tracepoint.o" ; fi;)
  66
  67 obj-m += probes/
  68 obj-m += lib/
  69
  70 endif # CONFIG_TRACEPOINTS
  71
  72 else # KERNELRELEASE
  73         KERNELDIR ?= /lib/modules/$(shell uname -r)/build
  74         PWD := $(shell pwd)
  75         CFLAGS = $(EXTCFLAGS)
  76
  77 default:
  78         LTTNG_KERNELDIR=$(KERNELDIR) $(MAKE) -C $(KERNELDIR) M=$(PWD) modules
  79
  80 modules_install:
  81         LTTNG_KERNELDIR=$(KERNELDIR) $(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install
  82
  83 clean:
  84         LTTNG_KERNELDIR=$(KERNELDIR) $(MAKE) -C $(KERNELDIR) M=$(PWD) clean
  85
  86 %.i: %.c
  87         LTTNG_KERNELDIR=$(KERNELDIR) $(MAKE) -C $(KERNELDIR) M=$(PWD) $@
  88 endif # KERNELRELEASE