From 84009c085d1da4f881914ca36cae5a2f297898d2 Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Wed, 12 Jun 2024 13:13:03 +0200
Subject: [PATCH] Makefile

---
 makefile | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 makefile

diff --git a/makefile b/makefile
new file mode 100644
index 0000000..30ba1be
--- /dev/null
+++ b/makefile
@@ -0,0 +1,21 @@
+# This is a standard makefile for building a kernel module.
+# It looks a bit backwards compared to a normal makefile, but that's because
+# the kernel supplies its own sub-makefile that we use to build the module.
+# 
+# The M= option tells the kernel's makefile where to find the module's source
+# files, and the -C option sets the context directory for make.
+#
+# The obj-m variable tells the kernel's makefile what the module's object file
+# should be called. In this case, it's demo_module.o. This is how the sub-makefile
+# infers the name of the module's source file.
+# 
+# This build is highly sensitive to compiler version, and requires the system gcc
+# to be the same version as the gcc that built the current kernel.
+
+obj-m = demo_module.o
+
+all:
+	make -C /lib/modules/$(shell uname -r)/build/ M=$(PWD) modules
+
+clean:
+	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean