Add convenience function for programs to get minimum delegation (#24175)

programs/bpf/rust/get_minimum_delegation/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "solana-bpf-rust-get-minimum-delegation"
+version = "1.11.0"
+description = "Solana BPF test program written in Rust"
+authors = ["Solana Maintainers <maintainers@solana.foundation>"]
+repository = "https://github.com/solana-labs/solana"
+license = "Apache-2.0"
+homepage = "https://solana.com/"
+documentation = "https://docs.rs/solana-bpf-rust-get-minimum-delegation"
+edition = "2021"
+
+[dependencies]
+solana-program = { path = "../../../../sdk/program", version = "=1.11.0" }
+
+[lib]
+crate-type = ["cdylib"]
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]

programs/bpf/rust/get_minimum_delegation/src/lib.rs

@@ -0,0 +1,23 @@
+//! Example/test program to get the minimum stake delegation via the helper function
+
+#![allow(unreachable_code)]
+
+extern crate solana_program;
+use solana_program::{
+    account_info::AccountInfo, entrypoint::ProgramResult, msg, pubkey::Pubkey, stake,
+};
+
+solana_program::entrypoint!(process_instruction);
+#[allow(clippy::unnecessary_wraps)]
+fn process_instruction(
+    _program_id: &Pubkey,
+    _accounts: &[AccountInfo],
+    _instruction_data: &[u8],
+) -> ProgramResult {
+    let minimum_delegation = stake::tools::get_minimum_delegation()?;
+    msg!(
+        "The minimum stake delegation is {} lamports",
+        minimum_delegation
+    );
+    Ok(())
+}