lib/oeqa/runtime: build kernel module on target test

Builds a simple Hello World module on target.
Added to the defaults for core-image-sato-sdk.

(From OE-Core rev: c61c3dee162aa1f5bf31b2a09d8b916dc1712056)

Signed-off-by: Stefan Stanacar <stefanx.stanacar@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/testimage.bbclass

@@ -28,7 +28,7 @@ TEST_LOG_DIR ?= "${WORKDIR}/testimage"
 DEFAULT_TEST_SUITES = "ping auto"
 DEFAULT_TEST_SUITES_pn-core-image-minimal = "ping"
 DEFAULT_TEST_SUITES_pn-core-image-sato = "ping ssh df connman syslog xorg scp vnc date rpm smart dmesg"
-DEFAULT_TEST_SUITES_pn-core-image-sato-sdk = "ping ssh df connman syslog xorg scp vnc date perl ldd gcc rpm smart dmesg"
+DEFAULT_TEST_SUITES_pn-core-image-sato-sdk = "ping ssh df connman syslog xorg scp vnc date perl ldd gcc rpm smart kernelmodule dmesg"
 
 TEST_SUITES ?= "${DEFAULT_TEST_SUITES}"
 

meta/lib/oeqa/runtime/files/hellomod.c

@@ -0,0 +1,19 @@
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+static int __init hello_init(void)
+{
+        printk(KERN_INFO "Hello world!\n");
+        return 0;
+}
+
+static void __exit hello_cleanup(void)
+{
+        printk(KERN_INFO "Cleaning up hellomod.\n");
+}
+
+module_init(hello_init);
+module_exit(hello_cleanup);
+
+MODULE_LICENSE("GPL");

meta/lib/oeqa/runtime/files/hellomod_makefile

@@ -0,0 +1,8 @@
+obj-m := hellomod.o
+KDIR := /usr/src/kernel
+
+all:
+	$(MAKE) -C $(KDIR) M=$(PWD) modules
+
+clean:
+	$(MAKE) -C $(KDIR) M=$(PWD) clean

meta/lib/oeqa/runtime/kernelmodule.py

@@ -0,0 +1,33 @@
+import unittest
+import os
+from oeqa.oetest import oeRuntimeTest, skipModule
+from oeqa.utils.decorators import *
+
+def setUpModule():
+    if not oeRuntimeTest.hasFeature("tools-sdk"):
+        skipModule("Image doesn't have tools-sdk in IMAGE_FEATURES")
+
+
+class KernelModuleTest(oeRuntimeTest):
+
+    def setUp(self):
+        self.target.copy_to(os.path.join(oeRuntimeTest.tc.filesdir, "hellomod.c"), "/tmp/hellomod.c")
+        self.target.copy_to(os.path.join(oeRuntimeTest.tc.filesdir, "hellomod_makefile"), "/tmp/Makefile")
+
+    @skipUnlessPassed('test_ssh')
+    @skipUnlessPassed('test_gcc_compile')
+    def test_kernel_module(self):
+        cmds = [
+            'cd /usr/src/kernel && make scripts',
+            'cd /tmp && make',
+            'cd /tmp && insmod hellomod.ko',
+            'lsmod | grep hellomod',
+            'dmesg | grep Hello',
+            'rmmod hellomod', 'dmesg | grep "Cleaning up hellomod"'
+            ]
+        for cmd in cmds:
+            (status, output) = self.target.run(cmd, 900)
+            self.assertEqual(status, 0, msg="\n".join([cmd, output]))
+
+    def tearDown(self):
+        self.target.run('rm -f /tmp/Makefile /tmp/hellomod.c')