-#
-# Makefile for the LTT objects.
-#
+# SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
ifneq ($(KERNELRELEASE),)
- # This part of the Makefile is used when called by the kernel build system
- # and defines the modules to be built.
-
- ifdef CONFIG_LOCALVERSION # Check if dot-config is included.
- ifeq ($(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 $(TOP_LTTNG_MODULES_DIR)/Makefile.ABI.workarounds
-
- ccflags-y += -I$(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-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-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 ($(CONFIG_HAVE_SYSCALL_TRACEPOINTS),)
- lttng-tracer-objs += lttng-syscalls.o
- endif # CONFIG_HAVE_SYSCALL_TRACEPOINTS
-
- ifneq ($(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
-
- 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 \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 15 -a $(SUBLEVEL) -ge 0 \) ] ; 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/
+# This part of the Makefile is used when called by the kernel build system
+# and defines the modules to be built.
+
+obj-$(CONFIG_LTTNG) += src/
else # KERNELRELEASE
KERNELDIR ?= /lib/modules/$(shell uname -r)/build
PWD := $(shell pwd)
-CFLAGS = $(EXTCFLAGS)
+
+# 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
default: modules
modules:
- $(MAKE) -C $(KERNELDIR) M=$(PWD) CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m modules
+ $(MAKE) -C $(KERNELDIR) M=$(PWD)/src \
+ CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
+ KCPPFLAGS='$(LKCPPFLAGS)' \
+ 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) CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m modules_install
+ $(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
+# 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 $@
+ $(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
projects / lttng-modules.git / blobdiff