X-Git-Url: http://git.lttng.org/?p=lttng-modules.git;a=blobdiff_plain;f=Makefile;h=4a6ddbc5f870d56fad5ea8c7ff16b173fca35606;hp=2cfc69012509d2c931b18291e8cbb399011aa39b;hb=HEAD;hpb=a82c63f10514ca43282498ea4fdee3908576528a

diff --git a/Makefile b/Makefile
index 2cfc6901..8d25816c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,55 +1,66 @@
-#
-# Makefile for the LTT objects.
-#
+# SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
 
 ifneq ($(KERNELRELEASE),)
-ifneq ($(CONFIG_TRACEPOINTS),)
-
-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 \
-			wrapper/random.o
-
-ifneq ($(CONFIG_HAVE_SYSCALL_TRACEPOINTS),)
-lttng-tracer-objs += lttng-syscalls.o
-endif
 
-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
+# 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.
 
-obj-m += probes/
-obj-m += lib/
+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)
-	CFLAGS = $(EXTCFLAGS)
+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
+	$(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