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rust-secp256k1-unsafe-fast
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Fix no-std raw test, after removal of lang items

This commit is contained in:
Elichai Turkel 2020-03-29 17:02:29 +03:00
parent b2edf157cd
commit 18259fd67b
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1 changed files with 7 additions and 20 deletions
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27
no_std_test/src/main.rs
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@ -14,13 +14,13 @@
//! # secp256k1 no-std test.
//! This binary is a short smallest rust code to produce a working binary *without libstd*.
//! This gives us 2 things:
//! This gives us 2 things:
//! 1. Test that the parts of the code that should work in a no-std enviroment actually work.
//! 2. Test that we don't accidentally import libstd into `secp256k1`.
//!
//!
//! The first is tested using the following command `cargo run --release | grep -q "Verified Successfully"`.
//! (Making sure that it successfully printed that. i.e. it didn't abort before that).
//!
//!
//! The second is tested by the fact that it compiles. if we accidentally link against libstd we should see the following error:
//! `error[E0152]: duplicate lang item found`.
//! Example:
@ -33,11 +33,11 @@
//! |
//! = note: first defined in crate `panic_unwind` (which `std` depends on).
//! ```
//!
//! Notes:
//!
//! Notes:
//! * Requires `panic=abort` and `--release` to not depend on libunwind(which is provided usually by libstd) https://github.com/rust-lang/rust/issues/47493
//! * Requires linking with `libc` for calling `printf`.
//!
//!
#![feature(lang_items)]
#![feature(start)]
@ -52,10 +52,10 @@ use core::fmt::{self, write, Write};
use core::intrinsics;
use core::panic::PanicInfo;
use secp256k1::ecdh::SharedSecret;
use secp256k1::rand::{self, RngCore};
use secp256k1::serde::Serialize;
use secp256k1::*;
use secp256k1::ecdh::SharedSecret;
use serde_cbor::de;
use serde_cbor::ser::SliceWrite;
@ -111,24 +111,11 @@ fn start(_argc: isize, _argv: *const *const u8) -> isize {
})}.unwrap();
assert_ne!(x_arr, [0u8; 32]);
assert_ne!(&y_arr[..], &[0u8; 32][..]);
unsafe { libc::printf("Verified Successfully!\n\0".as_ptr() as _) };
0
}
// These functions are used by the compiler, but not
// for a bare-bones hello world. These are normally
// provided by libstd.
#[lang = "eh_personality"]
#[no_mangle]
pub extern "C" fn rust_eh_personality() {}
// This function may be needed based on the compilation target.
#[lang = "eh_unwind_resume"]
#[no_mangle]
pub extern "C" fn rust_eh_unwind_resume() {}
const MAX_PRINT: usize = 511;
struct Print {
loc: usize,