From: Bohdan.Hunko@infineon.com <Bohdan.Hunko@infineon.com>
Date: Friday, 14 November 2025 at 13:37
To: Antonio De Angelis <Antonio.DeAngelis@arm.com>, tf-m@lists.trustedfirmware.org <tf-m@lists.trustedfirmware.org>
Cc: Hennadiy.Kytsun@infineon.com <Hennadiy.Kytsun@infineon.com>, nd <nd@arm.com>
Subject: RE: IAR + FIH issue

Hi Antonio,

We have this commit in our tee, but it does not solve the issue I described.

FYI – that commit is helpful as it solves other compile issues, but not the one I reported.

Regards,

Bohdan Hunko

Cypress Semiconductor Ukraine

Engineer

CSUKR CSS ICW SW FW

Mobile: +38099 50 19 714
Bohdan.Hunko@infineon.com

From: Antonio De Angelis <Antonio.DeAngelis@arm.com>
Sent: Friday, 14 November 2025 15:23
To: Hunko Bohdan (CSS ICW SW INT BFS SFW) <Bohdan.Hunko@infineon.com>; tf-m@lists.trustedfirmware.org
Cc: Kytsun Hennadiy (CSS ICW SW INT BFS SFW) <Hennadiy.Kytsun@infineon.com>; nd <nd@arm.com>
Subject: Re: IAR + FIH issue

Caution: This e-mail originated outside Infineon Technologies. Please be cautious when sharing information or opening attachments especially from unknown senders. Refer to our intranet guide to help you identify Phishing email.

Hi Bohdan,

Does this help?

https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/44258

Thanks,

Antonio

Sent from Outlook for Mac

From: Bohdan.Hunko--- via TF-M <tf-m@lists.trustedfirmware.org>
Date: Friday, 14 November 2025 at 12:43
To: tf-m@lists.trustedfirmware.org <tf-m@lists.trustedfirmware.org>
Cc: Hennadiy.Kytsun@infineon.com <Hennadiy.Kytsun@infineon.com>
Subject: [TF-M] IAR + FIH issue

Hi all,

I am trying to build TFM with IAR with TFM_FIH_PROFILE=HIGH and I am facing the issue with the FIH labels.

I see following errors:

[ 98%] Linking C executable ../bin/tfm_s.axf

Error[Li006]: duplicate definitions for "FIH_LABEL_FIH_CALL_END_46_1"; in

"main.o(libtfm_spm.a)", and "tfm_hal_platform.o(libtfm_spm.a)"

Error[Li006]: duplicate definitions for "FIH_LABEL_FIH_CALL_START_46_1"; in

"main.o(libtfm_spm.a)", and "tfm_hal_platform.o(libtfm_spm.a)"

Error[Li006]: duplicate definitions for "FIH_LABEL_FIH_CALL_END_35_0"; in

"tfm_hal_platform.o(libtfm_spm.a)", and

"platform_svc_handler.o(libtfm_spm.a)"

Error[Li006]: duplicate definitions for "FIH_LABEL_FIH_CALL_START_35_0"; in

"tfm_hal_platform.o(libtfm_spm.a)", and

"platform_svc_handler.o(libtfm_spm.a)"

I did some investigations and I believe I know the root cause:

Looks like __COUNTER__ for IAR is unique only for a translation unit (.c file) – thus when 2 files have FIH call in same line with the same number of FIH calls before – it creates a label which overlaps with labels in other file.