X-Git-Url: http://git.liburcu.org/?p=lttng-modules.git;a=blobdiff_plain;f=Makefile;h=c7b8a41712b528e55dc237161de844502d15ee2e;hp=aa4835d3c35713e511e64c40d59a517bd3e690c8;hb=6bb4326c067161532e0e6f3a0deec2d28b4595e8;hpb=c340f0713c0e9eb2c7aaae21bf2b03e7e19aca6d diff --git a/Makefile b/Makefile index aa4835d3..c7b8a417 100644 --- a/Makefile +++ b/Makefile @@ -1,80 +1,118 @@ -# -# Makefile for the LTT objects. -# +# SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1) ifneq ($(KERNELRELEASE),) -ifneq ($(CONFIG_TRACEPOINTS),) - -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 $(lttng_check_linux_version) file) -endif -endif - -obj-m += lttng-ring-buffer-client-discard.o -obj-m += lttng-ring-buffer-client-overwrite.o -obj-m += lttng-ring-buffer-metadata-client.o -obj-m += lttng-ring-buffer-client-mmap-discard.o -obj-m += lttng-ring-buffer-client-mmap-overwrite.o -obj-m += lttng-ring-buffer-metadata-mmap-client.o - -obj-m += lttng-tracer.o -lttng-tracer-objs := lttng-events.o lttng-abi.o \ - lttng-probes.o lttng-context.o \ - lttng-context-pid.o lttng-context-procname.o \ - lttng-context-prio.o lttng-context-nice.o \ - lttng-context-vpid.o lttng-context-tid.o \ - lttng-context-vtid.o lttng-context-ppid.o \ - lttng-context-vppid.o lttng-calibrate.o \ - lttng-context-hostname.o wrapper/random.o \ - probes/lttng.o - -obj-m += lttng-statedump.o -lttng-statedump-objs := lttng-statedump-impl.o wrapper/irqdesc.o \ - wrapper/fdtable.o - -ifneq ($(CONFIG_HAVE_SYSCALL_TRACEPOINTS),) -lttng-tracer-objs += lttng-syscalls.o probes/lttng-probe-user.o -endif # CONFIG_HAVE_SYSCALL_TRACEPOINTS - -ifneq ($(CONFIG_PERF_EVENTS),) -lttng-tracer-objs += $(shell \ - if [ $(VERSION) -ge 3 \ - -o \( $(VERSION) -eq 2 -a $(PATCHLEVEL) -ge 6 -a $(SUBLEVEL) -ge 33 \) ] ; then \ - echo "lttng-context-perf-counters.o" ; fi;) -endif # CONFIG_PERF_EVENTS - -lttng-tracer-objs += $(shell \ - if [ $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 15 -a $(SUBLEVEL) -ge 0 ] ; then \ - echo "lttng-tracepoint.o" ; fi;) - -obj-m += probes/ -obj-m += lib/ - -endif # CONFIG_TRACEPOINTS + + # This part of the Makefile is used when called by the kernel build system + # and defines the modules to be built. + + ifdef CONFIG_LOCALVERSION # Check if dot-config is included. + ifeq ($(CONFIG_TRACEPOINTS),) + $(error The option CONFIG_TRACEPOINTS needs to be enabled in your kernel configuration) + endif # CONFIG_TRACEPOINTS + endif # ifdef CONFIG_LOCALVERSION + + TOP_LTTNG_MODULES_DIR := $(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 + + include $(TOP_LTTNG_MODULES_DIR)/Kbuild.common + + ccflags-y += -I$(TOP_LTTNG_MODULES_DIR) + + obj-$(CONFIG_LTTNG) += lttng-ring-buffer-client-discard.o + obj-$(CONFIG_LTTNG) += lttng-ring-buffer-client-overwrite.o + obj-$(CONFIG_LTTNG) += lttng-ring-buffer-metadata-client.o + obj-$(CONFIG_LTTNG) += lttng-ring-buffer-client-mmap-discard.o + obj-$(CONFIG_LTTNG) += lttng-ring-buffer-client-mmap-overwrite.o + obj-$(CONFIG_LTTNG) += lttng-ring-buffer-metadata-mmap-client.o + obj-$(CONFIG_LTTNG) += lttng-clock.o + + obj-$(CONFIG_LTTNG) += lttng-tracer.o + + lttng-tracer-objs := lttng-events.o lttng-abi.o lttng-string-utils.o \ + lttng-probes.o lttng-context.o \ + lttng-context-pid.o lttng-context-procname.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-context-cpu-id.o \ + lttng-context-interruptible.o \ + lttng-context-need-reschedule.o \ + lttng-context-callstack.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 \ + lttng-tp-mempool.o + + ifneq ($(CONFIG_HAVE_SYSCALL_TRACEPOINTS),) + lttng-tracer-objs += lttng-syscalls.o + endif # CONFIG_HAVE_SYSCALL_TRACEPOINTS + + ifneq ($(CONFIG_PERF_EVENTS),) + lttng-tracer-objs += lttng-context-perf-counters.o + endif # CONFIG_PERF_EVENTS + + ifneq ($(CONFIG_PREEMPT_RT_FULL),) + lttng-tracer-objs += lttng-context-migratable.o + lttng-tracer-objs += lttng-context-preemptible.o + endif # CONFIG_PREEMPT_RT_FULL + + ifneq ($(CONFIG_PREEMPT),) + lttng-tracer-objs += lttng-context-preemptible.o + endif + + lttng-tracer-objs += $(shell \ + if [ $(VERSION) -ge 4 \ + -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 15 \) ] ; then \ + echo "lttng-tracepoint.o" ; fi;) + + obj-$(CONFIG_LTTNG) += lttng-statedump.o + lttng-statedump-objs := lttng-statedump-impl.o wrapper/irqdesc.o \ + wrapper/fdtable.o + + obj-$(CONFIG_LTTNG) += probes/ + obj-$(CONFIG_LTTNG) += lib/ + obj-$(CONFIG_LTTNG) += tests/ else # KERNELRELEASE - KERNELDIR ?= /lib/modules/$(shell uname -r)/build - PWD := $(shell pwd) - CFLAGS = $(EXTCFLAGS) -default: - $(MAKE) -C $(KERNELDIR) M=$(PWD) modules +# This part of the Makefile is used when the 'make' command is runned in the +# base directory of the lttng-modules sources. It sets some environment and +# calls the kernel build system to build the actual modules. + +KERNELDIR ?= /lib/modules/$(shell uname -r)/build +PWD := $(shell pwd) +CFLAGS = $(EXTCFLAGS) + +default: modules + +modules: + $(MAKE) -C $(KERNELDIR) M=$(PWD) CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m modules modules_install: - $(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install + $(MAKE) -C $(KERNELDIR) M=$(PWD) CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m modules_install clean: $(MAKE) -C $(KERNELDIR) M=$(PWD) clean %.i: %.c - $(MAKE) -C $(KERNELDIR) M=$(PWD) $@ + $(MAKE) -C $(KERNELDIR) M=$(PWD) CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m $@ + endif # KERNELRELEASE