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Update Zephyr document, add esp32c3 and particle_argon support(#920)

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Update the Zephyr document to provide more detailed instructions, and add info
about espressif toolchain too.

Add ESP32C3 (RISC-V) and Particle Argon boards support to the zephyr platform
sample. More boards are possible, but the script doesn't scale well and is to be
improved in future.

Add Dockerfile to kickstart a Zephyr development environment as it can be rather
confusing for new users.
This commit is contained in:
Stefan Wallentowitz
2021-12-29 03:05:27 +01:00
committed by GitHub
parent 98bacfe6bb
commit 936206f97b
4 changed files with 104 additions and 11 deletions
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17
doc/build_wamr.md
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@ -306,16 +306,25 @@ WAMR provides some features which can be easily configured by passing options to
Zephyr
-------------------------
You need to download the Zephyr source code first and embed WAMR into it.
You need to prepare Zephyr first as described here https://docs.zephyrproject.org/latest/getting_started/index.html#get-zephyr-and-install-python-dependencies).
After that you need to point the `ZEPHYR_BASE` variable to e.g. `~/zephyrproject/zephyr`. Also, it is important that you have `west` available for subsequent actions.
``` Bash
git clone https://github.com/zephyrproject-rtos/zephyr.git
source zephyr/zephyr-env.sh
cd <wamr_root_dir>/product-mini/platforms/zephyr/simple
# Execute the ./build_and_run.sh script with board name as parameter. Here take x86 as example:
./build_and_run.sh x86
```
If you want to use the Espressif toolchain (esp32 or esp32c3), you can most conveniently install it with `west`:
``` Bash
cd $ZEPHYR_BASE
west espressif install
```
After that set `ESPRESSIF_TOOLCHAIN_PATH` according to the output, for example `~/.espressif/tools/zephyr`.
Note:
WAMR provides some features which can be easily configured by passing options to cmake, please see [WAMR vmcore cmake building configurations](./build_wamr.md#wamr-vmcore-cmake-building-configurations) for details. Currently in Zephyr, interpreter, AoT and builtin libc are enabled by default.