Error message when stack size exceeded by 0 (zero!) bytes

[ComradePashka]

Hi!

Recently I created Solana Program using Anchor framework and got error message about exceeded stack size, so I "Boxed" accounts and got stack size exactly 4096 bytes, however error message remained:

Error: Function _ZN155_$LT$mint_ware..instructions..project_init..ProjectInit$u20$as$u20$anchor_lang..Accounts$LT$mint_ware..instructions..project_init..ProjectInitBumps$GT$$GT$12try_accounts17hc5baac49fbda26d4E Stack offset of 4096 exceeded max offset of 4096 by 0 bytes, please minimize large stack variables

Seems, that on line

llvm-project/llvm/lib/Target/BPF/BPFRegisterInfo.cpp

Line 60 in 646ec14

if (Offset <= MaxOffset) {

comparision should trigger Error only when Offset is less than (<) MaxOffset, but not less-or-equal (<=)

Exceeding by 0 bytes shouldn't be an error, right?

Thank you!

[LucasSte]

You're using an outdated version of platform tools. The comparison is actually less than, instead of less than or equal:

llvm-project/llvm/lib/Target/SBF/SBFRegisterInfo.cpp

Line 50 in f602770

if (Offset < MaxOffset) {