6965fe4bce
I believe this patch incorporates all expected syntax changes from extern function reform (#3678). You can now write things like: extern "<abi>" fn foo(s: S) -> T { ... } extern "<abi>" mod { ... } extern "<abi>" fn(S) -> T The ABI for foreign functions is taken from this syntax (rather than from an annotation). We support the full ABI specification I described on the mailing list. The correct ABI is chosen based on the target architecture. Calls by pointer to C functions are not yet supported, and the Rust type of crust fns is still *u8.
38 lines
1.4 KiB
Rust
38 lines
1.4 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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pub mod rusti {
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#[abi = "rust-intrinsic"]
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pub extern "rust-intrinsic" {
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fn atomic_cxchg(dst: &mut int, old: int, src: int) -> int;
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fn atomic_cxchg_acq(dst: &mut int, old: int, src: int) -> int;
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fn atomic_cxchg_rel(dst: &mut int, old: int, src: int) -> int;
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fn atomic_xchg(dst: &mut int, src: int) -> int;
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fn atomic_xchg_acq(dst: &mut int, src: int) -> int;
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fn atomic_xchg_rel(dst: &mut int, src: int) -> int;
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fn atomic_xadd(dst: &mut int, src: int) -> int;
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fn atomic_xadd_acq(dst: &mut int, src: int) -> int;
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fn atomic_xadd_rel(dst: &mut int, src: int) -> int;
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fn atomic_xsub(dst: &mut int, src: int) -> int;
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fn atomic_xsub_acq(dst: &mut int, src: int) -> int;
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fn atomic_xsub_rel(dst: &mut int, src: int) -> int;
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}
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}
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#[inline(always)]
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pub fn atomic_xchg(dst: &mut int, src: int) -> int {
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unsafe {
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rusti::atomic_xchg(dst, src)
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}
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}
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