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Use core atomic types instead of intrinsics on non-MSP430 targets #6

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Merged
merged 1 commit into from
Aug 12, 2022
Merged

Use core atomic types instead of intrinsics on non-MSP430 targets #6

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28 changes: 18 additions & 10 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -68,9 +68,9 @@
//! ```

#![no_std]
#![feature(asm_experimental_arch)]
#![cfg_attr(not(target_arch = "msp430"), feature(core_intrinsics))]
#![cfg_attr(target_arch = "msp430", feature(asm_experimental_arch))]

#[cfg(target_arch = "msp430")]
use core::arch::asm;
use core::cell::UnsafeCell;
use core::fmt;
Expand Down Expand Up @@ -681,42 +681,50 @@ macro_rules! atomic_int {
impl AtomicOperations for $int_type {
#[inline(always)]
unsafe fn atomic_store(dst: *mut Self, val: Self) {
::core::intrinsics::atomic_store(dst, val);
(*(dst as *const ::core::sync::atomic::$atomic_type))
.store(val, ::core::sync::atomic::Ordering::SeqCst);
}

#[inline(always)]
unsafe fn atomic_load(dst: *const Self) -> Self {
::core::intrinsics::atomic_load(dst)
(*(dst as *const ::core::sync::atomic::$atomic_type))
.load(::core::sync::atomic::Ordering::SeqCst)
}

#[inline(always)]
unsafe fn atomic_add(dst: *mut Self, val: Self) {
::core::intrinsics::atomic_xadd(dst, val);
(*(dst as *const ::core::sync::atomic::$atomic_type))
.fetch_add(val, ::core::sync::atomic::Ordering::SeqCst);
}

#[inline(always)]
unsafe fn atomic_sub(dst: *mut Self, val: Self) {
::core::intrinsics::atomic_xsub(dst, val);
(*(dst as *const ::core::sync::atomic::$atomic_type))
.fetch_sub(val, ::core::sync::atomic::Ordering::SeqCst);
}

#[inline(always)]
unsafe fn atomic_and(dst: *mut Self, val: Self) {
::core::intrinsics::atomic_and(dst, val);
(*(dst as *const ::core::sync::atomic::$atomic_type))
.fetch_and(val, ::core::sync::atomic::Ordering::SeqCst);
}

#[inline(always)]
unsafe fn atomic_clear(dst: *mut Self, val: Self) {
::core::intrinsics::atomic_and(dst, !val);
(*(dst as *const ::core::sync::atomic::$atomic_type))
.fetch_and(!val, ::core::sync::atomic::Ordering::SeqCst);
}

#[inline(always)]
unsafe fn atomic_or(dst: *mut Self, val: Self) {
::core::intrinsics::atomic_or(dst, val);
(*(dst as *const ::core::sync::atomic::$atomic_type))
.fetch_or(val, ::core::sync::atomic::Ordering::SeqCst);
}

#[inline(always)]
unsafe fn atomic_xor(dst: *mut Self, val: Self) {
::core::intrinsics::atomic_xor(dst, val);
(*(dst as *const ::core::sync::atomic::$atomic_type))
.fetch_xor(val, ::core::sync::atomic::Ordering::SeqCst);
}
}
}
Expand Down