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| author | Yuval Peress <peress@chromium.org> | 2021-06-08 23:47:15 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-06-09 17:55:12 +0000 |
| commit | 629f84562924610a6fc4dd726b1054fe3ecd6d79 (patch) | |
| tree | 01b282d3eebdd33bbe32cd82f7ce5d2c9764615d /zephyr/zmake | |
| parent | ae1b0032c195c28e0f8132f4133ed361f6a2ff90 (diff) | |
| download | chrome-ec-629f84562924610a6fc4dd726b1054fe3ecd6d79.tar.gz | |
zmake: Add utility for getting value from autoconf.h
Kconfig generates an autoconf.h header from the various Kconfig files.
These values (such as CONFIG_FLASH_SIZE) may not be obvious to find.
This is especially true since some Kconfig values are passed in from
zmake while others reside in Kconfig files.
Add a utility to get the #define value from the autoconf.h that's
generated during the build.
BRANCH=none
BUG=b:190435084
TEST=Added unit tests
Signed-off-by: Yuval Peress <peress@chromium.org>
Change-Id: Id2c1f05a809e17f67a435209e35606ffd7245174
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2948168
Reviewed-by: Denis Brockus <dbrockus@chromium.org>
Diffstat (limited to 'zephyr/zmake')
| -rw-r--r-- | zephyr/zmake/tests/test_util.py | 10 | ||||
| -rw-r--r-- | zephyr/zmake/zmake/util.py | 17 |
2 files changed, 27 insertions, 0 deletions
diff --git a/zephyr/zmake/tests/test_util.py b/zephyr/zmake/tests/test_util.py index 823b198e91..b656b1318f 100644 --- a/zephyr/zmake/tests/test_util.py +++ b/zephyr/zmake/tests/test_util.py @@ -73,3 +73,13 @@ def test_read_zephyr_version(version_tuple): f.write('{} = {}\n'.format(name, value)) assert util.read_zephyr_version(zephyr_base) == version_tuple + +@hypothesis.given(st.integers()) +@hypothesis.settings(deadline=60000) +def test_read_kconfig_autoconf_value(value): + with tempfile.TemporaryDirectory() as dir: + path = pathlib.Path(dir) + with open(path / 'autoconf.h', 'w') as f: + f.write('#define TEST {}'.format(value)) + read_value = util.read_kconfig_autoconf_value(path, 'TEST') + assert int(read_value) == value diff --git a/zephyr/zmake/zmake/util.py b/zephyr/zmake/zmake/util.py index 1f052a3688..ca38831ef6 100644 --- a/zephyr/zmake/zmake/util.py +++ b/zephyr/zmake/zmake/util.py @@ -73,6 +73,23 @@ def read_kconfig_file(path): result[name.strip()] = value.strip() return result +def read_kconfig_autoconf_value(path, key): + """Parse an autoconf.h file for a resolved kconfig value + + Args: + path: The path to the autoconf.h file. + key: The define key to lookup. + + Returns: + The value associated with the key or nothing if the key wasn't found. + """ + prog = re.compile(r'^#define\s{}\s(\S+)$'.format(key)) + with open(path / 'autoconf.h') as f: + for line in f: + m = prog.match(line) + if m: + return m.group(1) + def write_kconfig_file(path, config, only_if_changed=True): """Write out a dictionary to Kconfig format. |