[XS] Change in coreboot[main]: arch/x86/Kconfig: Stop building ARM verstage with clang

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: Arthur Heymans, Jérémy Compostella, Martin L Roth, Yu-Ping Wu.

Karthik Ramasubramanian has posted comments on this change by Yu-Ping Wu. ( https://review.coreboot.org/c/coreboot/+/83594?usp=email )

Change subject: arch/x86/Kconfig: Stop building ARM verstage with clang
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Patch Set 1:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/83594/comment/1c10662b_696a624e?usp... :
PS1, Line 9: We have never intended to build ARM verstage with clang (see CB:69701).
> > That was my intention though. Why is building ARM verstage with clang a problem? […]

The moment we try to pull in CMOS related support into ARM/PSP verstage (CB:83495), we are running out of space in PSP SRAM i.e. text, data and bss sections together are going beyond their allocated range in psp_verstage memlayout. This is happening only with clang. GCC builds fine.