What’s the timeframe expectation with the new cmake work? Is this something that is planned for TFM 1.1?

- k

On Jun 2, 2020, at 7:11 AM, Raef Coles via TF-M tf-m@lists.trustedfirmware.org wrote:

Hi,

Thank you very much for the changes to the image signing script - those look like great QOL improvements.

WRT Ninja and externalproject support, there is currently an ongoing effort to improve the TF-M build system by rewriting it to use more modern and streamlined cmake. I haven't tested it as an externalproject yet, but am pretty confident that it should now work "out of the box". When it gets to the stage that it can be submitted to trustedfirmware.org as a patch I'll try to reply to this so you can test that.

I personally hadn't used Ninja much, but am pleasantly surprised with how fast it is. I will do my best to make sure that the new cmake also works with ninja, since support should be relatively simple.

Raef

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From: TF-M tf-m-bounces@lists.trustedfirmware.org on behalf of Kevin Townsend via TF-M tf-m@lists.trustedfirmware.org Sent: 02 June 2020 12:11 To: Thomas Törnblom via TF-M Subject: [TF-M] Changes required to enable Zephyr integration as External_Project

Hi,

The following task lists some of the changes that we had to make to enable TF-M to be built using ExternalProject_Add from Zephyr, as well as enabling the use of ninja for TF-M builds (which is often significantly faster than using classic makefiles): https://developer.trustedfirmware.org/T760

The ninja changes have been tested with:

$ cmake -GNinja -DPROJ_CONFIG=`readlink -f ../configs/ConfigDefault.cmake` -DTARGET_PLATFORM=LPC55S69 -DBL2=False -DCOMPILER=GNUARM .. $ ninja

The changes to imgtool.py resolve some platform issues when signing binaries, and add a convenience requirements.txt file that can be run in CI to ensure that all of the Python dependencies are met for this tool.

Any concerns or feedback on these are welcome, but I would be interested to hear any opinions on ninja which is often considerably faster out of the box when compiling (at least on Linux and native OS X, which is what I use for my builds).

Best regards, Kevin -- TF-M mailing list TF-M@lists.trustedfirmware.org https://lists.trustedfirmware.org/mailman/listinfo/tf-m