zig/std/os/darwin_x86_64.zig
2017-03-26 06:39:28 -04:00

88 lines
2.1 KiB
Zig

pub const SYSCALL_CLASS_SHIFT = 24;
pub const SYSCALL_CLASS_MASK = 0xFF << SYSCALL_CLASS_SHIFT;
// pub const SYSCALL_NUMBER_MASK = ~SYSCALL_CLASS_MASK; // ~ modifier not supported yet
pub const SYSCALL_CLASS_NONE = 0; // Invalid
pub const SYSCALL_CLASS_MACH = 1; // Mach
pub const SYSCALL_CLASS_UNIX = 2; // Unix/BSD
pub const SYSCALL_CLASS_MDEP = 3; // Machine-dependent
pub const SYSCALL_CLASS_DIAG = 4; // Diagnostics
// TODO: use the above constants to create the below values
pub const SYS_exit = 0x2000001;
pub const SYS_read = 0x2000003;
pub const SYS_write = 0x2000004;
pub const SYS_open = 0x2000005;
pub const SYS_close = 0x2000006;
pub const SYS_kill = 0x2000025;
pub const SYS_getpid = 0x2000030;
pub const SYS_fstat = 0x20000BD;
pub const SYS_lseek = 0x20000C7;
pub inline fn syscall0(number: usize) -> usize {
asm volatile ("syscall"
: [ret] "={rax}" (-> usize)
: [number] "{rax}" (number)
: "rcx", "r11")
}
pub inline fn syscall1(number: usize, arg1: usize) -> usize {
asm volatile ("syscall"
: [ret] "={rax}" (-> usize)
: [number] "{rax}" (number),
[arg1] "{rdi}" (arg1)
: "rcx", "r11")
}
pub inline fn syscall2(number: usize, arg1: usize, arg2: usize) -> usize {
asm volatile ("syscall"
: [ret] "={rax}" (-> usize)
: [number] "{rax}" (number),
[arg1] "{rdi}" (arg1),
[arg2] "{rsi}" (arg2)
: "rcx", "r11")
}
pub inline fn syscall3(number: usize, arg1: usize, arg2: usize, arg3: usize) -> usize {
asm volatile ("syscall"
: [ret] "={rax}" (-> usize)
: [number] "{rax}" (number),
[arg1] "{rdi}" (arg1),
[arg2] "{rsi}" (arg2),
[arg3] "{rdx}" (arg3)
: "rcx", "r11")
}
pub const stat = extern struct {
dev: u32,
mode: u16,
nlink: u16,
ino: u64,
uid: u32,
gid: u32,
rdev: u64,
atim: timespec,
mtim: timespec,
ctim: timespec,
size: u64,
blocks: u64,
blksize: u32,
flags: u32,
gen: u32,
lspare: i32,
qspare: [2]u64,
};
pub const timespec = extern struct {
tv_sec: isize,
tv_nsec: isize,
};