Cleanup: Remove deprecated TODO file

[lttng-modules.git] / instrumentation / syscalls / lttng-syscalls-extractor / Makefile

diff --git a/instrumentation/syscalls/lttng-syscalls-extractor/Makefile b/instrumentation/syscalls/lttng-syscalls-extractor/Makefile
index 4beb88c05c3ad11433133fe2a02dd1e256d6e6f2..b3e9c43117007c8700996b8bdda65afad019be9b 100644 (file)
--- a/instrumentation/syscalls/lttng-syscalls-extractor/Makefile
+++ b/instrumentation/syscalls/lttng-syscalls-extractor/Makefile
@@ -1 +1,31 @@
-obj-m += lttng-syscalls-extractor.o
+# SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
+
+ifneq ($(KERNELRELEASE),)
+
+  # This part of the Makefile is used when called by the kernel build system
+  # and defines the modules to be built.
+
+  obj-m += lttng-syscalls-extractor.o
+
+else # KERNELRELEASE
+
+# This part of the Makefile is used when the 'make' command is runned in the
+# base directory of the lttng-modules sources. It sets some environment and
+# calls the kernel build system to build the actual modules.
+
+KERNELDIR ?= /lib/modules/$(shell uname -r)/build
+PWD := $(shell pwd)
+CFLAGS = $(EXTCFLAGS)
+
+default: modules
+
+modules:
+       $(MAKE) -C $(KERNELDIR) M=$(PWD) modules
+
+clean:
+       $(MAKE) -C $(KERNELDIR) M=$(PWD) clean
+
+%.i: %.c
+       $(MAKE) -C $(KERNELDIR) M=$(PWD) $@
+
+endif # KERNELRELEASE