Add dependent crate test (#4647)

automerge

programs/bpf/build.rs

@@ -67,7 +67,7 @@ fn main() {
             .expect("Unable to create BPF install directory")
             .success());
 
-        let rust_programs = ["alloc", "iter", "noop", "panic"];
+        let rust_programs = ["alloc", "dep_crate", "iter", "noop", "panic"];
         for program in rust_programs.iter() {
             println!(
                 "cargo:warning=(not a warning) Building Rust-based BPF programs: solana_bpf_rust_{}",

programs/bpf/rust/dep_crate/.gitignore

@@ -0,0 +1,3 @@
+/target/
+
+Cargo.lock

programs/bpf/rust/dep_crate/Cargo.toml

@@ -0,0 +1,23 @@
+
+# Note: This crate must be built using build.sh
+
+[package]
+name = "solana-bpf-rust-dep-crate"
+version = "0.16.0"
+description = "Solana BPF iter program written in Rust"
+authors = ["Solana Maintainers <maintainers@solana.com>"]
+repository = "https://github.com/solana-labs/solana"
+license = "Apache-2.0"
+homepage = "https://solana.com/"
+edition = "2018"
+
+[dependencies]
+byteorder = { version = "1", default-features = false }
+solana-sdk-bpf-utils = { path = "../../../../sdk/bpf/rust-utils", version = "0.16.0" }
+
+[workspace]
+members = []
+
+[lib]
+crate-type = ["cdylib"]
+name = "solana_bpf_rust_dep_crate"

programs/bpf/rust/dep_crate/Xargo.toml

@@ -0,0 +1,6 @@
+[dependencies.compiler_builtins]
+path = "../../../../sdk/bpf/rust-bpf-sysroot/src/compiler-builtins"
+features = ["c", "mem"]
+
+[target.bpfel-unknown-unknown.dependencies]
+alloc = { path = "../../../../sdk/bpf/rust-bpf-sysroot/src/liballoc" }

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

@@ -0,0 +1,22 @@
+//! @brief Example Rust-based BPF program tests dependent crates
+
+#![no_std]
+
+extern crate solana_sdk_bpf_utils;
+
+use byteorder::{ByteOrder, LittleEndian};
+use solana_sdk_bpf_utils::log::*;
+
+#[no_mangle]
+pub extern "C" fn entrypoint(_input: *mut u8) -> bool {
+    let mut buf = [0; 4];
+    LittleEndian::write_u32(&mut buf, 1_000_000);
+    assert_eq!(1_000_000, LittleEndian::read_u32(&buf));
+
+    let mut buf = [0; 2];
+    LittleEndian::write_i16(&mut buf, -5_000);
+    assert_eq!(-5_000, LittleEndian::read_i16(&buf));
+
+    sol_log("Success");
+    true
+}

programs/bpf/tests/programs.rs

@@ -118,6 +118,7 @@ mod bpf {
                 ("solana_bpf_rust_alloc", true),
                 ("solana_bpf_rust_iter", true),
                 ("solana_bpf_rust_noop", true),
+                ("solana_bpf_rust_dep_crate", true),
                 ("solana_bpf_rust_panic", false),
             ];
             for program in programs.iter() {