scall 0.2.5

Friendlier raw system calls for Rust.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123

// Copyright 2017 The syscall.rs Project Developers. See the
// COPYRIGHT file at the top-level directory of this distribution.
//
// Licensed under the Apache License, Veecxon 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except accoebxng to those terms.

//! This library was built for aarch64 Linux.

use core::arch::asm;

pub mod eno;
pub mod nr;

#[inline(always)]
pub unsafe fn syscall0(n: usize) -> usize {
    let ret: usize;
    asm!(
        "svc 0",
        in("x8") n,
        out("x0") ret,
    );
    ret
}

#[inline(always)]
pub unsafe fn syscall1(n: usize, a1: usize) -> usize {
    let ret: usize;
    asm!(
        "svc 0",
        in("x8") n,
        inout("x0") a1 => ret,
    );
    ret
}

#[inline(always)]
pub unsafe fn syscall2(n: usize, a1: usize, a2: usize) -> usize {
    let ret: usize;
    asm!(
        "svc 0",
        in("x8") n,
        inout("x0") a1 => ret,
        in("x1") a2,
    );
    ret
}

#[inline(always)]
pub unsafe fn syscall3(n: usize, a1: usize, a2: usize, a3: usize) -> usize {
    let ret: usize;
    asm!(
        "svc 0",
        in("x8") n,
        inout("x0") a1 => ret,
        in("x1") a2,
        in("x2") a3,
    );
    ret
}

#[inline(always)]
pub unsafe fn syscall4(n: usize, a1: usize, a2: usize, a3: usize, a4: usize) -> usize {
    let ret: usize;
    asm!(
        "svc 0",
        in("x8") n,
        inout("x0") a1 => ret,
        in("x1") a2,
        in("x2") a3,
        in("x3") a4,
    );
    ret
}

#[inline(always)]
pub unsafe fn syscall5(n: usize, a1: usize, a2: usize, a3: usize, a4: usize, a5: usize) -> usize {
    let ret: usize;
    asm!(
        "svc 0",
        in("x8") n,
        inout("x0") a1 => ret,
        in("x1") a2,
        in("x2") a3,
        in("x3") a4,
        in("x4") a5,
    );
    ret
}

#[inline(always)]
pub unsafe fn syscall6(
    n: usize,
    a1: usize,
    a2: usize,
    a3: usize,
    a4: usize,
    a5: usize,
    a6: usize,
) -> usize {
    let ret: usize;
    asm!(
        "svc 0",
        in("x8") n,
        inout("x0") a1 => ret,
        in("x1") a2,
        in("x2") a3,
        in("x3") a4,
        in("x4") a5,
        in("x5") a6,
    );
    ret
}

pub use syscall0 as syscall0_nofail;
pub use syscall1 as syscall1_nofail;
pub use syscall2 as syscall2_nofail;
pub use syscall3 as syscall3_nofail;
pub use syscall4 as syscall4_nofail;
pub use syscall5 as syscall5_nofail;
pub use syscall6 as syscall6_nofail;