Hi Carlos,
Alternativley you may consider setting SCTLR_EL1.A=0 in your S-EL1 startup code. This will turn off alginment checking. See: https://developer.arm.com/documentation/ddi0595/2021-12/AArch64-Registers/SC...
FYI: before VHE support was implemented in Hafnium the “sel1_shim” was used to allow running S-EL0 SPs under HF. This is now obsolete and discontinued, but might serve as an examle. See: https://gitlab.arm.com/arm-reference-solutions/sel1_shim/-/tree/master?ref_t...
/George
From: Gyorgy Szing via Trusted-services trusted-services@lists.trustedfirmware.org Date: Monday, 18 March 2024 at 13:26 To: carlos.liu@mediatek.com carlos.liu@mediatek.com, trusted-services@lists.trustedfirmware.org trusted-services@lists.trustedfirmware.org Subject: [Trusted-services] Re: Built-in new lib does not include -mstrict-align gcc compile option Hi Carlos,
The TS build system will pass the value of the NEWLIB_CFLAGS_TARGET environment variable as extra compilation switches to newlib build. Alternatively a cmake cache variable with the same name can be set on the command line using -D NEWLIB_CFLAGS_TARGET =<value>.
/George
From: Carlos Liu via Trusted-services trusted-services@lists.trustedfirmware.org Date: Thursday, 14 March 2024 at 12:52 To: trusted-services@lists.trustedfirmware.org trusted-services@lists.trustedfirmware.org Subject: [Trusted-services] Built-in new lib does not include -mstrict-align gcc compile option Hi trusted service We can run a trusted service at S-EL1 with Hafnium based on trusted service project 1.0.0 library (libsp.a and libc.a) but we found that could cause unalignment stack access trap when call into newlib C library, it is because that you don't add -mstrict-align compile option while compile newlib project, could you add this compile option when you start to build newlib?
Thanks Carlos -- Trusted-services mailing list -- trusted-services@lists.trustedfirmware.org To unsubscribe send an email to trusted-services-leave@lists.trustedfirmware.org -- Trusted-services mailing list -- trusted-services@lists.trustedfirmware.org To unsubscribe send an email to trusted-services-leave@lists.trustedfirmware.org