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zephyr: Support cmake args. Add -Werror in CI #4733

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Merged
lgirdwood merged 4 commits into from
Sep 9, 2021
Merged

zephyr: Support cmake args. Add -Werror in CI #4733

lgirdwood merged 4 commits into from
Sep 9, 2021

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@marc-hb
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@marc-hb marc-hb commented Sep 8, 2021

4 commits. Main ones:

  • support CMake arguments
  • Add -Werror in CI

@marc-hb
xtensa-build-zephyr: extract new parse_args() function from main()
9e421ae 
main() was growing too big. Zero functional change.

Also rename the too generic "build()" to build_all()

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
@marc-hb
xtensa-build-zephyr: support passing through CMake arguments
c2e8837 
Like this:

  xtensa-build-zephyr.sh -a -- -DEXTRA_CFLAGS='-Werror -Wextra'

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
@marc-hb
zephyr/docker-build.sh: pass arguments through to xtensa-build-zephyr.sh
77f111c 
Allows passing compilation flags and any other argument.

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
@marc-hb
.github/zephyr: add -Werror
d1e612b 
Because we can. This would have caught this regression from
commit 287a5f9 ("ssp: mclk/bclk turned off unexpectedly")

-DEXTRA_CFLAGS is not very well documented but it is what Zephyr uses,
try `git -C zephyr grep -C 5 EXTRA_CFLAGS and see.

```
sof/src/drivers/intel/ssp/ssp.c: In function 'ssp_set_config_tplg':
sof/zephyr/include/sof/trace/trace.h:44:11: warning:
                   too many arguments for format [-Wformat-extra-args]
   44 |    printk("%llu: " format "\n", platform_timer_get(NULL), \
      |           ^~~~~~~~
  ...
sof/src/drivers/intel/ssp/ssp.c:763:4: note: in expansion of macro 'dai_info'
  763 |    dai_info(dai, "ssp_set_config(): hw_free stage:
                     ignore since there is still user", dai->index);
```

Using -Werror only in CI avoids slowing down developers with temporary
warnings they intend on fixing later (but before submission)

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
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marc-hb commented Sep 8, 2021

https://github.com/thesofproject/sof/pull/4733/checks?check_run_id=3548978888 with both -Werror and -Wextra failed as expected.

@marc-hb marc-hb marked this pull request as ready for review September 8, 2021 20:28
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marc-hb commented Sep 8, 2021

No CML_SKU0955_HDA device was available in https://sof-ci.01.org/sofpr/PR4733/build10246/devicetest/. Everything else is green on that page and everywhere else (it's almost suspicious)

Zephyr builds were all successful (there's no Zephyr testing in PR at the moment, only in daily tests)

@marc-hb marc-hb mentioned this pull request Sep 8, 2021
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@marc-hb marc-hb changed the title zephyr: support cmake args. Add -Werror in CI zephyr: Support cmake args. Add -Werror in CI Sep 9, 2021
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lgirdwood approved these changes Sep 9, 2021
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@marc-hb what's the long term plan here ? It seem like -Werror and also --std=c99 need to be default arguments in the build (automatically defined in cmake rules). I would assume these would need to be in Zephyr cmake and be inherited by SOF cmake ? @andyross ?

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marc-hb commented Sep 9, 2021 •
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what's the long term plan here ? It seem like -Werror and also --std=c99 need to be default arguments in the build (automatically defined in cmake rules)

I don't know about -std=c99 and Zephyr. I heard some C99 features are missing from XCC.

In general -Werror by default in the build can be UNproductive because it slows down iterative development, see one of my commit messages here. In upstream Zephyr -Werror is not in the build by default, it's added in the test suite (in twister).

Anyway this PR adds flexibility to add any flag anywhere later (and I have another, unrelated PR textually depending on it)

@lgirdwood lgirdwood merged commit 9a23191 into thesofproject:main Sep 9, 2021
@marc-hb marc-hb deleted the zephyr-cmake-args branch September 9, 2021 15:38
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