Hi Brian, "SFN" section is a legacy item in TF-M project. "__tz_c_veneer" is recommended to be used now.

From: Quach, Brian via TF-M tf-m@lists.trustedfirmware.org Sent: Friday, September 29, 2023 5:50 AM To: tf-m@lists.trustedfirmware.org Subject: [TF-M] gateway attribute question

Hi,

When is it appropriate to use "__tz_c_veneer" vs. "__tfm_nspm_secure_gateway_attributes__"? The only difference appears to be placing it in "SFN" section.

Regards,

Brian Quach SimpleLink MCU Texas Instruments Inc.