How to efficiently execute the .so file generated by the Solang compiler? #1703
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How to Efficiently Execute the .so File Generated by Solang Compiler for Solana Hi @Subway2023, I see you're trying to execute the .so file compiled from Solang directly using rbpf, but you're running into an AccessViolation error. Based on your setup, I believe the issue could be related to incorrect input encoding or how Solana BPF programs expect structured data. Possible Causes & Fixes1. Incorrect ABI Encoding for Input Data Fix: Use Proper Borsh Encoding for Inputs Instead of directly using 26121ff0, encode it in Borsh format before passing it as input. You can generate the properly encoded input using Rust: use solana_program::borsh::try_to_vec; #[derive(BorshSerialize)] fn main() {
} 2. ELF File Might Not Be a Valid Solana BPF Program Fix: Verify the ELF Format Run: readelf -h ./C.so e_machine is EM_BPF (should be targeting eBPF for Solana). solang compile test.sol --target solana --emit llvm-bc,llvm-ir,object,asm --output build/ Steps to Deploy & Execute the .so file
solana-test-validator solana program deploy C.so |
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When I run solana-ledger-tool program run --help, it prompts me that the format of input.txt is as follows. How should I fill in the data inside, such as data and instruction_data?
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I placed the .so program generated by the solang compiler into rbpf for execution, but encountered an error.
test.sol
input.txt (26121ff0 is the selector of function f)
My question: How to correctly call the f() function and retrieve the return value?
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