X-Git-Url: http://git.lttng.org/?p=lttng-modules.git;a=blobdiff_plain;f=Makefile;h=4a6ddbc5f870d56fad5ea8c7ff16b173fca35606;hp=81d81288a48625277a01732326074dd047cd0537;hb=HEAD;hpb=2e6246b4df9cdd984847183506f345ef92953f87

diff --git a/Makefile b/Makefile
index 81d81288..8d25816c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,41 +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
+# This part of the Makefile is used when called by the kernel build system
+# and defines the modules to be built.
 
-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 ltt-ascii.o \
-		  ltt-serialize.o ltt-type-serializer.o
+obj-$(CONFIG_LTTNG) += src/
 
-obj-m += ltt-statedump.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/
+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)
-	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
-	/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