Arm Zephyr PAL is now functional #12759
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/12759
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### Summary Previously the PAL file was uploaded as a placeholder for Zephyr apps to use. However, building `arm_zephyr.o` object was unsuccessful. The PAL has been updated and can now be used and linked to zephyr executorch applications. ### Test plan Tested on a simple add model arm executor runner, see [here](https://github.com/BujSet/zephyr/blob/5801a783883f3cf9bb172213d891c0de596c3dcf/samples/modules/executorch/arm-fvp-tutorials/models/CMakeLists.txt#L61) for a concrete example. CI tests are WIP, see [here](pytorch#12734).
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Summary
Previously the PAL file was uploaded as a placeholder for Zephyr apps to use. However, building
arm_zephyr.oobject was unsuccessful. The PAL has been updated and can now be used and linked to zephyr executorch applications.Test plan
Tested on a simple add model arm executor runner, see here for a concrete example. CI tests are WIP, see here.