test add linux driver cross compile example

Add a minimal platform.linux.module sample that documents custom linux headers/builddir usage for cross toolchains and verifies the new cross-build workflow.

Made-with: Cursor

3 files changed, 28 insertions, 0 deletions

diff --git a/tests/projects/linux/driver/hello_cross/src/add.c b/tests/projects/linux/driver/hello_cross/src/add.c
new file mode 100644
index 000000000..72c39a6e4
--- /dev/null
+++ b/tests/projects/linux/driver/hello_cross/src/add.c
@@ -0,0 +1,4 @@
+#include "add.h"
+int add(int a, int b) {
+    return a + b;
+}
diff --git a/tests/projects/linux/driver/hello_cross/src/add.h b/tests/projects/linux/driver/hello_cross/src/add.h
new file mode 100644
index 000000000..ba2df6926
--- /dev/null
+++ b/tests/projects/linux/driver/hello_cross/src/add.h
@@ -0,0 +1,2 @@
+#pragma once
+int add(int a, int b);
diff --git a/tests/projects/linux/driver/hello_cross/src/hello.c b/tests/projects/linux/driver/hello_cross/src/hello.c
new file mode 100644
index 000000000..c32e48f61
--- /dev/null
+++ b/tests/projects/linux/driver/hello_cross/src/hello.c
@@ -0,0 +1,22 @@
+#include <linux/init.h>
+#include <linux/module.h>
+#include "add.h"
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Ruki");
+MODULE_DESCRIPTION("A simple Hello World Module");
+MODULE_ALIAS("a simplest module");
+
+static int hello_init(void)
+{
+    printk(KERN_INFO "Hello World: %d\n", add(1, 2));
+    return 0;
+}
+
+static void hello_exit(void)
+{
+    printk(KERN_INFO "Goodbye World\n");
+}
+
+module_init(hello_init);
+module_exit(hello_exit);