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kunit: tool: add --kconfig_add to allow easily tweaking kunitconfigs

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E.g. run tests but with KASAN
$ ./tools/testing/kunit/kunit.py run --arch=x86_64 --kconfig_add=CONFIG_KASAN=y

This also works with --kunitconfig
$ ./tools/testing/kunit/kunit.py run --arch=x86_64 --kunitconfig=fs/ext4 --kconfig_add=CONFIG_KASAN=y

This flag is inspired by TuxMake's --kconfig-add, see
https://gitlab.com/Linaro/tuxmake#examples.

Our version just uses "_" as the delimiter for consistency with
pre-existing flags like --build_dir, --make_options, --kernel_args, etc.

Note: this does make it easier to run into a pre-existing edge case:
$ ./tools/testing/kunit/kunit.py run --arch=x86_64 --kconfig_add=CONFIG_KASAN=y
$ ./tools/testing/kunit/kunit.py run --arch=x86_64
This second invocation ^ still has KASAN enabled!

kunit.py won't call olddefconfig if our current .config is already a
superset of the provided kunitconfig.

Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Daniel Latypov
2021-11-05 18:30:58 -07:00
committed by Shuah Khan
parent 98978490cc
commit 9f57cc76ec
3 changed files with 31 additions and 0 deletions
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tools/testing/kunit/kunit.py
+8
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@@ -280,6 +280,10 @@ def add_common_opts(parser) -> None:
' If given a directory, (e.g. lib/kunit), "/.kunitconfig" '
'will get automatically appended.',
metavar='kunitconfig')
parser.add_argument('--kconfig_add',
help='Additional Kconfig options to append to the '
'.kunitconfig, e.g. CONFIG_KASAN=y. Can be repeated.',
action='append')
parser.add_argument('--arch',
help=('Specifies the architecture to run tests under. '
@@ -398,6 +402,7 @@ def main(argv, linux=None):
if not linux:
linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir,
kunitconfig_path=cli_args.kunitconfig,
kconfig_add=cli_args.kconfig_add,
arch=cli_args.arch,
cross_compile=cli_args.cross_compile,
qemu_config_path=cli_args.qemu_config)
@@ -423,6 +428,7 @@ def main(argv, linux=None):
if not linux:
linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir,
kunitconfig_path=cli_args.kunitconfig,
kconfig_add=cli_args.kconfig_add,
arch=cli_args.arch,
cross_compile=cli_args.cross_compile,
qemu_config_path=cli_args.qemu_config)
@@ -439,6 +445,7 @@ def main(argv, linux=None):
if not linux:
linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir,
kunitconfig_path=cli_args.kunitconfig,
kconfig_add=cli_args.kconfig_add,
arch=cli_args.arch,
cross_compile=cli_args.cross_compile,
qemu_config_path=cli_args.qemu_config)
@@ -457,6 +464,7 @@ def main(argv, linux=None):
if not linux:
linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir,
kunitconfig_path=cli_args.kunitconfig,
kconfig_add=cli_args.kconfig_add,
arch=cli_args.arch,
cross_compile=cli_args.cross_compile,
qemu_config_path=cli_args.qemu_config)