Thoughts about U-boot binary size increase

[Marek Vasut]

On 3/28/24 10:20 AM, Lukasz Majewski wrote:
> Dear Community,
> 
> I'd like to share with you some thoughts about growth of u-boot's
> binary size for SPL and u-boot proper.
> 
> Board: XEA
> SoC  : imx287 (still in active production)
> Problem: SPL size constrained to ~55 KiB (This cannot be exceeded).
> 	 Board design constraints u-boot proper size to less than ~448
> 	 KiB
> 
> 
> When XEA was added (2019.07):
> 	- u-boot.sb (SPL): 37 KiB
> 	- u-boot.img 	 : 401 KiB
> 
> Now (2024.04):
> 	- u-boot.sb (SPL): 40 KiB

Do you know which symbol(s) grew in here ?

> 	- u-boot.img 	 : 427 KiB
> 
> (With a _lot_ of effort put to reduce the size)
> 
> Hence, the question - would it be possible to take more concern about
> the binary size growth?
> 
> Maybe CI could catch patches, which enable by default some features and
> the size is unintentionally increased?

Try and set CONFIG_BOARD_SIZE_LIMIT and CONFIG_SPL_SIZE_LIMIT for this 
board, that would trip build error if the size grows too large.