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. Signed-off-by: Thomas Weißschuh <thomas.weisssc...@linutronix.de> Reviewed-by: Rae Moar <rm...@google.com> --- Changes in v2: - Pick up review from Rae - Link to v1: https://lore.kernel.org/r/20250220-kunit-list-v1-1-40b9d5641...@linutronix.de --- Documentation/dev-tools/kunit/run_wrapper.rst | 2 ++ tools/testing/kunit/kunit_kernel.py | 8 ++++++++ 2 files changed, 10 insertions(+) diff --git a/Documentation/dev-tools/kunit/run_wrapper.rst b/Documentation/dev-tools/kunit/run_wrapper.rst index 19ddf5e07013314c608b570e297a8ff79a8efe7f..6697c71ee8ca020b8ac7e91b46e29ab082d9dea0 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 d3f39bc1ceec7eab23925ff1b852e996a715f3d5..260d8d9aa1db4ac3c04fa755fb738dd834b976db 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, --- base-commit: 8ffd015db85fea3e15a77027fda6c02ced4d2444 change-id: 20250220-kunit-list-552a8cdc011e Best regards, -- Thomas Weißschuh <thomas.weisssc...@linutronix.de>
