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| author |  bors[bot] <26634292+bors[bot]@users.noreply.github.com>
| 2020-08-31 21:08:05 +0000 |
|---|---|---|
| committer |  GitHub <noreply@github.com>
| 2020-08-31 21:08:05 +0000 |
| commit | b05a24e6b31e039e059760a4245b378df008faf8 (patch) | |
| tree | 50a7ce8ead7bb9ef1f34216e8934988572d442a8 /src/lib.rs | |
| parent | 3260e397647b5ea4984e8c82cb537f2475da0f5d (diff) | |
| parent | c27c8e5b063bd7058ba05dc3a9fa7886a1b1545c (diff) | |
| download | cortex-m-b05a24e6b31e039e059760a4245b378df008faf8.tar.gz cortex-m-b05a24e6b31e039e059760a4245b378df008faf8.tar.zst cortex-m-b05a24e6b31e039e059760a4245b378df008faf8.zip | |
Merge #262
262: Merge asm implementations r=therealprof a=jonas-schievink
This replaces the implementation of `inline-asm` with the file I wrote in #259 (and some fixes).
All functions that call assembly now do so via a `call_asm!` macro that either dispatches to a call to an `#[inline(always)]` function containing the inline `asm!`, or to the FFI shim. This makes all functions that call into asm significantly shorter.
The FFI shim is now also macro-generated, which makes it very small.
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
Diffstat (limited to 'src/lib.rs')
| -rw-r--r-- | src/lib.rs | 9 |
1 files changed, 5 insertions, 4 deletions
@@ -12,7 +12,7 @@ //! ## `inline-asm` //! //! When this feature is enabled the implementation of all the functions inside the `asm` and -//! `register` modules use inline assembly (`llvm_asm!`) instead of external assembly (FFI into separate +//! `register` modules use inline assembly (`asm!`) instead of external assembly (FFI into separate //! assembly files pre-compiled using `arm-none-eabi-gcc`). The advantages of enabling `inline-asm` //! are: //! @@ -52,17 +52,16 @@ //! //! # Minimum Supported Rust Version (MSRV) //! -//! This crate is guaranteed to compile on stable Rust 1.31 and up. It *might* +//! This crate is guaranteed to compile on stable Rust 1.38 and up. It *might* //! compile with older versions but that may change in any new patch release. -#![cfg_attr(feature = "inline-asm", feature(llvm_asm))] +#![cfg_attr(feature = "inline-asm", feature(asm))] #![deny(missing_docs)] #![no_std] #![allow(clippy::identity_op)] #![allow(clippy::missing_safety_doc)] // Prevent clippy from complaining about empty match expression that are used for cfg gating. #![allow(clippy::match_single_binding)] - // This makes clippy warn about public functions which are not #[inline]. // // Almost all functions in this crate result in trivial or even no assembly. @@ -82,6 +81,8 @@ extern crate bare_metal; extern crate volatile_register; #[macro_use] +mod call_asm; +#[macro_use] mod macros; pub mod asm; |