ad31768dd9
* Add adjustable stack size and call depth (#12728)
(cherry picked from commit c3907be623)
# Conflicts:
# programs/bpf/Cargo.lock
# programs/bpf/Cargo.toml
# programs/bpf/build.rs
# programs/bpf_loader/Cargo.toml
# programs/bpf_loader/src/lib.rs
# runtime/src/feature_set.rs
# runtime/src/process_instruction.rs
* resolve conflicts
Co-authored-by: Jack May <jack@solana.com>
28 lines
653 B
Rust
28 lines
653 B
Rust
//! @brief Example Rust-based BPF program that tests call depth and stack usage
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use solana_sdk::{entrypoint::SUCCESS, info};
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#[inline(never)]
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pub fn recurse(data: &mut [u8]) {
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if data.len() <= 1 {
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return;
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}
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recurse(&mut data[1..]);
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info!(line!(), 0, 0, 0, data[0]);
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}
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/// # Safety
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#[inline(never)]
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#[no_mangle]
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pub unsafe extern "C" fn entrypoint(input: *mut u8) -> u64 {
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info!("Call depth");
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let depth = *(input.add(16) as *mut u8);
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info!(line!(), 0, 0, 0, depth);
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let mut data = Vec::with_capacity(depth as usize);
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for i in 0_u8..depth {
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data.push(i);
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}
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recurse(&mut data);
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SUCCESS
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}
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