rust-bitcoin-unsafe-fast/hashes/embedded/src/main.rs

73 lines
1.9 KiB
Rust

#![cfg_attr(feature = "alloc", feature(alloc_error_handler))]
#![no_std]
#![no_main]
#[macro_use]
extern crate bitcoin_hashes;
#[cfg(feature = "alloc")] extern crate alloc;
#[cfg(feature = "alloc")] use alloc_cortex_m::CortexMHeap;
#[cfg(feature = "alloc")] use core::alloc::Layout;
#[cfg(feature = "alloc")] use cortex_m::asm;
#[cfg(feature = "alloc")] use bitcoin_hashes::hex::ToHex;
use bitcoin_hashes::{sha256, Hash, HashEngine};
use core2::io::Write;
use core::str::FromStr;
use cortex_m_rt::entry;
use cortex_m_semihosting::{debug, hprintln};
use panic_halt as _;
hash_newtype!(TestType, sha256::Hash, 32, doc = "test");
// this is the allocator the application will use
#[cfg(feature = "alloc")]
#[global_allocator]
static ALLOCATOR: CortexMHeap = CortexMHeap::empty();
#[cfg(feature = "alloc")]
const HEAP_SIZE: usize = 1024; // in bytes
#[entry]
fn main() -> ! {
#[cfg(feature = "alloc")]
unsafe { ALLOCATOR.init(cortex_m_rt::heap_start() as usize, HEAP_SIZE) }
let mut engine = TestType::engine();
engine.write_all(b"abc").unwrap();
check_result(engine);
let mut engine = TestType::engine();
engine.input(b"abc");
check_result(engine);
debug::exit(debug::EXIT_SUCCESS);
loop {}
}
fn check_result(engine: sha256::HashEngine) {
let hash = TestType::from_engine(engine);
let hash_check =
TestType::from_str("ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad")
.unwrap();
hprintln!("hash:{} hash_check:{}", hash, hash_check).unwrap();
if hash != hash_check {
debug::exit(debug::EXIT_FAILURE);
}
#[cfg(feature = "alloc")]
if hash.to_hex() != hash_check.to_hex() {
debug::exit(debug::EXIT_FAILURE);
}
}
// define what happens in an Out Of Memory (OOM) condition
#[cfg(feature = "alloc")]
#[alloc_error_handler]
fn alloc_error(_layout: Layout) -> ! {
asm::bkpt();
loop {}
}