gilbert

@0xgib

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294 Followers

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Hey @v sorry for the ping but my friend's casts are not showing up in any channels. Did he get shadowbanned or something?

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I can't seem to find this cast that was posted /founders recently. Bug? https://warpcast.com/harsh/0x190e3716

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Solana uses a fixed size stack frame of 4KB. This means if a function call uses more than 4KB of parameters, local vars, etc. then the program (thankfully) crashes

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One way to bridge assets (or send messages in general) to/from Solana is to use the Wormhole protocol. Wormhole has an off-chain network of "Guardians" that pass these messages across chains. However, there are exactly 19, and only 19... anyone know something about this? https://wormhole.com/blockchains/#guardians

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Lido's stETH is a rebasing token. Rebasing tokens are problematic to integrate with for the majority of protocols, due to holder balances constantly shifting. Fortunately Lido recognizes this and offers wstETH, representing *shares* instead, which are stable across rebases, making it compatible with defi in general.

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On Solana, you can have a single transaction that makes multiple top-level program calls. In contrast, an EVM tx only supports sending calldata to a single contract address.

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Security question: If deploying a contract can take 100-1000x transactions, then how does upgrading a contract work for that same number of transactions? Will the contract still function? As its old version? Or do you upload to a buffer and switch to it in 1 tx instead?

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Raise your hand and drop a link if your company survived the crypto bear market 👋

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EVM smart contracts don't really have a max size, since an SSTORE opcode has an entire 256 bits of address space to write to (in theory, anyway) Solana accounts have a max size of 10 MiB, which must be incremented to via the limit of 10 KiB per instruction.

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"Deploying a program on Solana requires hundreds, if not thousands of transactions, due to the max size limit of 1232 bytes for Solana transactions" 🧐🧐🧐 https://solana.com/docs/programs/deploying

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In a Solana transaction, a program cannot arbitrarily read data from just any address. You MUST specify which accounts you wish to read from, upfront, BEFORE the program even begins to run 😦 https://warpcast.com/0xgib/0xa0a411ba

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Correction: Rent doesn't really exist anymore as a mechanism in Solana. As of June 2022, all storage MUST deposit 2 years worth of "rent" to be accepted on-chain. "Deposit" means you get it back when you delete that same storage. https://warpcast.com/0xgib/0x5247264a

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Solana storage fees are not one-and-done. You have to pay "rent" over time to maintain that data's persistence on-chain. If you don't pay, your data could get garbage collected 🗑️

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By default, Solana programs are upgradable 😮 The deployer can update the program bytecode at any time This feature is built into Solana, so no proxy patterns are required

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Useful (EVM → Solana) Terms EOA → User account Opcode → Instruction Address → Account Gas limit → Compute budget Wei, 1e-18 → Lamport, 1e-9 External call → Cross-program invocation (CPI) Smart contract → Program; executable account 1/n

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Not related to security, but in Solana they're called "programs" not "smart contracts" 🙊

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Solana programs ("executable accounts") don't contain their own data. Instead, they spawn and exclusively own "non-executable accounts" whose only purpose is to hold data. They write data to user accounts too (also considered non-executable), but supposedly this is less flexible. https://warpcast.com/0xgib/0xa0a411ba

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Hey all, I'm the author of LearnEVM.com I'm diving into Solana this month. If you're curious, you can follow my progress on /solana-security Should be interesting if you want to learn security facts from the perspective of the EVM 🤓

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diving into solana this month, you can follow my progress on /solana-security

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The Solana program call stack limit is 64 However, programs calling other programs is limited to a depth of 4

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