X-Git-Url: http://git.lttng.org/?p=lttng-modules.git;a=blobdiff_plain;f=Makefile;h=4a6ddbc5f870d56fad5ea8c7ff16b173fca35606;hp=b9f48ca92f11d67e233e9e07c3da2efd5e186e4e;hb=HEAD;hpb=1c8284ebdbd119314b8f01e442e64cf5fd4b9fe6 diff --git a/Makefile b/Makefile index b9f48ca9..8d25816c 100644 --- a/Makefile +++ b/Makefile @@ -1,42 +1,66 @@ -# -# Makefile for the LTT objects. -# +# SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) ifneq ($(KERNELRELEASE),) -ifneq ($(CONFIG_MARKERS),) - -obj-m += ltt-core.o -obj-m += ltt-tracer.o -obj-m += ltt-marker-control.o - -obj-m += ltt-relay.o -ltt-relay-objs := ltt-relay-lockless.o ltt-relay-alloc.o ltt-relay-splice.o \ - ltt-relay-vfs.o ltt-event-header.o - -obj-m += ltt-serialize.o -obj-m += ltt-statedump.o -obj-m += ltt-type-serializer.o -obj-m += ltt-trace-control.o -obj-m += ltt-userspace-event.o -obj-m += ltt-filter.o -obj-m += ltt-kprobes.o -obj-m += probes/ -obj-m += ltt-ascii.o +# This part of the Makefile is used when called by the kernel build system +# and defines the modules to be built. + +obj-$(CONFIG_LTTNG) += src/ + +else # KERNELRELEASE + +# This part of the Makefile is used when the 'make' command is runned in the +# base directory of the lttng-modules sources. It sets some environment and +# calls the kernel build system to build the actual modules. + +KERNELDIR ?= /lib/modules/$(shell uname -r)/build +PWD := $(shell pwd) + +# Experimental bitwise enum defaults to disabled. +CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM ?= n + +# Emulate Kconfig behavior of setting defines for config options. +LKCPPFLAGS = $(KCPPFLAGS) +ifeq ($(CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM),y) +LKCPPFLAGS += -DCONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM=y endif -else - KERNELDIR ?= /lib/modules/$(shell uname -r)/build - PWD := $(shell pwd) +default: modules + +modules: + $(MAKE) -C $(KERNELDIR) M=$(PWD)/src \ + CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \ + KCPPFLAGS='$(LKCPPFLAGS)' \ + modules -default: - $(MAKE) -C $(KERNELDIR) M=$(PWD) modules +syscalls_extractor: + $(MAKE) -C $(KERNELDIR) M=$(PWD)/src \ + CONFIG_LTTNG_SYSCALLS_EXTRACTOR=m \ + CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \ + KCPPFLAGS='$(LKCPPFLAGS)' \ + modules modules_install: - $(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install - /sbin/depmod -a + $(MAKE) -C $(KERNELDIR) M=$(PWD)/src \ + CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \ + KCPPFLAGS='$(LKCPPFLAGS)' \ + modules_install clean: - $(MAKE) -C $(KERNELDIR) M=$(PWD) clean + $(MAKE) -C $(KERNELDIR) M=$(PWD)/src clean -endif +# The following targets are used for development and debugging. They are not +# part of the build system. +%.i: %.c + $(MAKE) -C $(KERNELDIR) M=$(PWD) \ + CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \ + KCPPFLAGS='$(LKCPPFLAGS)' \ + $@ + +%.o: %.c + $(MAKE) -C $(KERNELDIR) M=$(PWD) \ + CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \ + KCPPFLAGS='$(LKCPPFLAGS)' \ + $@ + +endif # KERNELRELEASE