mirror of
https://github.com/ziglang/zig.git
synced 2024-11-27 15:42:49 +00:00
88 lines
2.1 KiB
Zig
88 lines
2.1 KiB
Zig
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pub const SYSCALL_CLASS_SHIFT = 24;
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pub const SYSCALL_CLASS_MASK = 0xFF << SYSCALL_CLASS_SHIFT;
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// pub const SYSCALL_NUMBER_MASK = ~SYSCALL_CLASS_MASK; // ~ modifier not supported yet
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pub const SYSCALL_CLASS_NONE = 0; // Invalid
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pub const SYSCALL_CLASS_MACH = 1; // Mach
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pub const SYSCALL_CLASS_UNIX = 2; // Unix/BSD
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pub const SYSCALL_CLASS_MDEP = 3; // Machine-dependent
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pub const SYSCALL_CLASS_DIAG = 4; // Diagnostics
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// TODO: use the above constants to create the below values
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pub const SYS_exit = 0x2000001;
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pub const SYS_read = 0x2000003;
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pub const SYS_write = 0x2000004;
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pub const SYS_open = 0x2000005;
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pub const SYS_close = 0x2000006;
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pub const SYS_kill = 0x2000025;
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pub const SYS_getpid = 0x2000030;
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pub const SYS_fstat = 0x20000BD;
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pub const SYS_lseek = 0x20000C7;
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pub inline fn syscall0(number: usize) -> usize {
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asm volatile ("syscall"
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: [ret] "={rax}" (-> usize)
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: [number] "{rax}" (number)
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: "rcx", "r11")
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}
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pub inline fn syscall1(number: usize, arg1: usize) -> usize {
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asm volatile ("syscall"
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: [ret] "={rax}" (-> usize)
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: [number] "{rax}" (number),
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[arg1] "{rdi}" (arg1)
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: "rcx", "r11")
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}
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pub inline fn syscall2(number: usize, arg1: usize, arg2: usize) -> usize {
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asm volatile ("syscall"
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: [ret] "={rax}" (-> usize)
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: [number] "{rax}" (number),
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[arg1] "{rdi}" (arg1),
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[arg2] "{rsi}" (arg2)
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: "rcx", "r11")
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}
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pub inline fn syscall3(number: usize, arg1: usize, arg2: usize, arg3: usize) -> usize {
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asm volatile ("syscall"
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: [ret] "={rax}" (-> usize)
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: [number] "{rax}" (number),
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[arg1] "{rdi}" (arg1),
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[arg2] "{rsi}" (arg2),
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[arg3] "{rdx}" (arg3)
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: "rcx", "r11")
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}
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pub const stat = extern struct {
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dev: u32,
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mode: u16,
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nlink: u16,
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ino: u64,
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uid: u32,
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gid: u32,
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rdev: u64,
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atim: timespec,
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mtim: timespec,
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ctim: timespec,
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size: u64,
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blocks: u64,
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blksize: u32,
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flags: u32,
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gen: u32,
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lspare: i32,
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qspare: [2]u64,
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};
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pub const timespec = extern struct {
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tv_sec: isize,
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tv_nsec: isize,
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};
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