Re: [Buildroot] [PATCH 1/1] package/python-pykwalify: add required package for zephyr cmake

From: Thomas Petazzoni via buildroot <buildroot@buildroot.org>
To: Charles Hardin <ckhardin@gmail.com>
Cc: "Alvaro G . M" <alvaro.gamez@hazent.com>,
	Asaf Kahlon <asafka7@gmail.com>,
	buildroot@buildroot.org
Subject: Re: [Buildroot] [PATCH 1/1] package/python-pykwalify: add required package for zephyr cmake
Date: Tue, 22 Aug 2023 19:57:26 +0200	[thread overview]
Message-ID: <20230822195726.0f691945@windsurf> (raw)
In-Reply-To: <CAN=fXj29fRXvHHZVG03LfTfPQeBrzroV5VN3nwavTw3gejS90Q@mail.gmail.com>

Hello Charles,

On Mon, 21 Aug 2023 16:45:23 -0700
Charles Hardin <ckhardin@gmail.com> wrote:

> https://github.com/zephyrproject-rtos

Yes, I know what Zephyr is :-)

> The build is cmake derived but relies on calling into some python scripts to
> generate some build dependencies
> 
> https://github.com/zephyrproject-rtos/zephyr/blob/main/scripts/requirements-base.txt

OK.

> So, we have various RTOS MCUs that are hooked up into linux controllers,
> and this is just a simple hook so that the same SDK can be handled to build
> both firmware for something like an STM32 and a Raspberry-pi

If I rephrase this: you want to use Buildroot to build the Zephyr
firmware for your STM32 micro-controller, alongside with the Linux
system running on the RaspberryPi?

> Assume a reference to
> https://gist.github.com/titouanc/ea0685d9cd8592deb1c49d48e33b3eee to add
> the gcc eabi toolchain has been done in an external package, with the
> patches above we can actually build both firmware and the drivers in
> buildroot from one tree with external recipes like below

Note: this gcc eabi toolchain is now in Buildroot upstream, no need to
add it as an external package.

> env PATH=/opt/sdk/aarch64-buildroot-linux-gnu_sdk-buildroot/bin:$PATH cmake
> \
> 
>     -DCMAKE_TOOLCHAIN_FILE=/opt/sdk/aarch64-buildroot-linux-gnu_sdk-buildroot/share/buildroot/toolchainfile.cmake
> \
> 
> 
> -DARMGNU_GCC_TOOLCHAIN_PREFIX="/opt/sdk/aarch64-buildroot-linux-gnu_sdk-buildroot/share/gcc-arm-none-eabi"
> \
> 
>     -DCMAKE_BUILD_TYPE=Debug \
> 
>         ../buildroot-external

Not sure to really follow in which projects this cmake command is used?
To build Zephyr?

Best regards,

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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