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authorThomas Weißschuh <thomas.weissschuh@linutronix.de>2025-04-15 09:03:06 +0200
committerShuah Khan <skhan@linuxfoundation.org>2025-04-15 10:54:50 -0600
commit6cf6b0a6f204e8b10e2b69e74953f029ea83a8a9 (patch)
tree0208fa1edbcf6d9f445637a7e11fa1d676b1020a
parent9aa08e761b67e3d8b5ca2ff1e9194a73d3000cce (diff)
kunit: tool: Implement listing of available architectures
To implement custom scripting around kunit.py it is useful to get a list of available architectures. While it is possible to manually inspect tools/testing/kunit/qemu_configs/, this is annoying to implement and introduces a dependency on a kunit.py implementation detail. Introduce 'kunit.py run --arch help' which lists all known architectures in an easy to parse list. This is equivalent on how QEMU implements listing of possible argument values. Link: https://lore.kernel.org/r/20250415-kunit-list-v2-1-aa452cd317ae@linutronix.de Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Reviewed-by: Rae Moar <rmoar@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
-rw-r--r--Documentation/dev-tools/kunit/run_wrapper.rst2
-rw-r--r--tools/testing/kunit/kunit_kernel.py8
2 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/dev-tools/kunit/run_wrapper.rst b/Documentation/dev-tools/kunit/run_wrapper.rst
index 19ddf5e070133..6697c71ee8ca0 100644
--- a/Documentation/dev-tools/kunit/run_wrapper.rst
+++ b/Documentation/dev-tools/kunit/run_wrapper.rst
@@ -182,6 +182,8 @@ via UML. To run tests on qemu, by default it requires two flags:
is ignored), the tests will run via UML. Non-UML architectures,
for example: i386, x86_64, arm and so on; run on qemu.
+ ``--arch help`` lists all valid ``--arch`` values.
+
- ``--cross_compile``: Specifies the Kbuild toolchain. It passes the
same argument as passed to the ``CROSS_COMPILE`` variable used by
Kbuild. As a reminder, this will be the prefix for the toolchain
diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py
index d3f39bc1ceec7..260d8d9aa1db4 100644
--- a/tools/testing/kunit/kunit_kernel.py
+++ b/tools/testing/kunit/kunit_kernel.py
@@ -14,6 +14,7 @@ import os
import shlex
import shutil
import signal
+import sys
import threading
from typing import Iterator, List, Optional, Tuple
from types import FrameType
@@ -201,6 +202,13 @@ def _default_qemu_config_path(arch: str) -> str:
return config_path
options = [f[:-3] for f in os.listdir(QEMU_CONFIGS_DIR) if f.endswith('.py')]
+
+ if arch == 'help':
+ print('um')
+ for option in options:
+ print(option)
+ sys.exit()
+
raise ConfigError(arch + ' is not a valid arch, options are ' + str(sorted(options)))
def _get_qemu_ops(config_path: str,