Hi Thomas,

Please correct me if I'm wrong. In my very own opinion, the new build system can simply add a variable to set the Compiler before loading preload.cmake. It allows platform to select different core/arch flags according to the current compiler in the preload.cmake.

Best regards, Hu Ziji

From: Thomas Törnblom thomas.tornblom@iar.com Sent: Tuesday, August 25, 2020 9:56 PM To: David Hu David.Hu@arm.com; tf-m@lists.trustedfirmware.org Subject: Re: [TF-M] New build system with IAR

Hi David,

Apparently yes.

Here are the valid M33 choices for IAR: --- thomasto@ubuntu-20:~/tf-m1/trusted-firmware-m$ iccarm --cpu list|grep -i m33 �Cortex-M33 �Cortex-M33.no_dsp �Cortex-M33.fp �Cortex-M33.fp.no_dsp �Cortex-M33.no_se �Cortex-M33.no_dsp.no_se �Cortex-M33.fp.no_se �Cortex-M33.fp.no_dsp.no_se ---

Cheers, Thomas Den 2020-08-25 kl. 15:49, skrev David Hu: Hi Thomas,

Sorry if I misunderstand your problem. Does it mean that diverse compilers require different core config flags?

Best regards, Hu Ziji ________________________________ From: TF-M tf-m-bounces@lists.trustedfirmware.orgmailto:tf-m-bounces@lists.trustedfirmware.org on behalf of Thomas T�rnblom via TF-M tf-m@lists.trustedfirmware.orgmailto:tf-m@lists.trustedfirmware.org Sent: Tuesday, August 25, 2020 7:39 PM To: tf-m@lists.trustedfirmware.orgmailto:tf-m@lists.trustedfirmware.org tf-m@lists.trustedfirmware.orgmailto:tf-m@lists.trustedfirmware.org Subject: [TF-M] New build system with IAR � I've started looking at the new build system, and it looks like a nice improvement.

I have a problem, that likely has a simple solution, although I'm not sure which.

I've looked at the AN521 target, and the preload.cmake file is included very early from the root CMakeLists.txt

The first line of preload.cmake is: --- set(CMAKE_SYSTEM_PROCESSOR cortex-m33+nodsp) ---

For IAR that line should be: --- set(CMAKE_SYSTEM_PROCESSOR Cortex-M33.no_dsp) ---

I need to discriminate between the toolchains already there, but I haven't figured out what the best way would be to do that. Not much is setup at this moment in the run.

Ideas?

Thomas --

Thomas T�rnblom, Product Engineer IAR Systems AB Box 23051, Strandbodgatan 1 SE-750 23 Uppsala, SWEDEN Mobile: +46 76 180 17 80 Fax: +46 18 16 78 01 E-mail: thomas.tornblom@iar.commailto:thomas.tornblom@iar.com Website: www.iar.comhttp://www.iar.com Twitter: www.twitter.com/iarsystemshttp://www.twitter.com/iarsystems

--

Thomas T�rnblom, Product Engineer IAR Systems AB Box 23051, Strandbodgatan 1 SE-750 23 Uppsala, SWEDEN Mobile: +46 76 180 17 80 Fax: +46 18 16 78 01 E-mail: thomas.tornblom@iar.commailto:thomas.tornblom@iar.com Website: www.iar.comhttp://www.iar.com Twitter: www.twitter.com/iarsystemshttp://www.twitter.com/iarsystems