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libfringe/benches/syscall.rs

33 lines
676 B
Rust

// This file is part of libfringe, a low-level green threading library.
// Copyright (c) edef <edef@edef.eu>
// See the LICENSE file included in this distribution.
#![cfg(target_os = "linux")]
#![feature(asm, test)]
extern crate test;
#[cfg(target_arch = "x86_64")]
#[bench]
fn syscall(b: &mut test::Bencher) {
b.iter(|| unsafe {
asm!("movq $$102, %rax\n\
syscall"
:
:
: "rax", "rcx"
: "volatile");
});
}
#[cfg(target_arch = "x86")]
#[bench]
fn syscall(b: &mut test::Bencher) {
b.iter(|| unsafe {
asm!("mov $$24, %eax\n\
int $$0x80"
:
:
: "eax"
: "volatile");
});
}