[PATCH v4 10/16] selftest/cases/runtime_test: Add test for Linux Rust sample

Harish.Sadineni
2026-01-20T18:31:38Z

From: Yoann Congal <yoann.congal@smile.fr>

This new case tests that the rust_mininal sample inside the kernel source
tree is buildable and works properly: check that the module can be
loaded and that it prints correctly.

Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
---
meta/lib/oeqa/selftest/cases/runtime_test.py | 25 ++++++++++++++++++++
1 file changed, 25 insertions(+)

diff --git a/meta/lib/oeqa/selftest/cases/runtime_test.py b/meta/lib/oeqa/selftest/cases/runtime_test.py
index d58ffa80f5..e8374606a4 100644
--- a/meta/lib/oeqa/selftest/cases/runtime_test.py
+++ b/meta/lib/oeqa/selftest/cases/runtime_test.py
@@ -481,3 +481,28 @@ IMAGE_INSTALL:append = " systemtap-runtime"
cmd = "crosstap -r root@192.168.7.2 -s %s/process/ syscalls_by_pid.stp" % systemtap_examples
result = runCmd(cmd)
self.assertEqual(0, result.status, 'crosstap syscalls_by_pid returned a non 0 status:%s' % result.output)
+
+@OETestTag("runqemu")
+class RustKernel(OESelftestTestCase):
+ @classmethod
+ def setUpClass(cls):
+ super(RustKernel, cls).setUpClass()
+ cls.image = "core-image-minimal"
+
+ def test_kernel_rust_sample(self):
+ import textwrap
+ self.write_config(textwrap.dedent("""
+ DISTRO_FEATURES:append = ' rust-kernel'
+ KERNEL_EXTRA_FEATURES:append = ' features/kernel-sample/kernel-rust-sample.scc'
+ CORE_IMAGE_EXTRA_INSTALL += "kernel-module-rust-minimal"
+ """))
+ bitbake(self.image)
+
+ with runqemu(self.image, runqemuparams = "nographic") as qemu:
+ qemu.run_serial("dmesg -c > /dev/null")
+ status, _ = qemu.run_serial("modprobe rust_minimal")
+ self.assertEqual(status, 1, "Loading rust_minimal module failed!")
+ _, output = qemu.run_serial("dmesg")
+ self.logger.debug(f"rust_minimal dmesg output:\n" + textwrap.indent(output, " "))
+ self.assertIn("Rust minimal sample", output, "Kernel Rust sample expected output not found in dmesg")
+
--
2.49.0