mirror of
https://github.com/ziglang/zig.git
synced 2025-12-06 22:33:08 +00:00
303 lines
7.1 KiB
Zig
303 lines
7.1 KiB
Zig
const std = @import("../../std.zig");
|
|
const maxInt = std.math.maxInt;
|
|
const linux = std.os.linux;
|
|
const SYS = linux.SYS;
|
|
const socklen_t = linux.socklen_t;
|
|
const sockaddr = linux.sockaddr;
|
|
const iovec = std.os.iovec;
|
|
const iovec_const = std.os.iovec_const;
|
|
const uid_t = linux.uid_t;
|
|
const gid_t = linux.gid_t;
|
|
const pid_t = linux.pid_t;
|
|
const stack_t = linux.stack_t;
|
|
const sigset_t = linux.sigset_t;
|
|
const timespec = std.os.linux.timespec;
|
|
|
|
pub fn syscall0(number: SYS) usize {
|
|
return asm volatile ("svc #0"
|
|
: [ret] "={x0}" (-> usize),
|
|
: [number] "{x8}" (@intFromEnum(number)),
|
|
: "memory", "cc"
|
|
);
|
|
}
|
|
|
|
pub fn syscall1(number: SYS, arg1: usize) usize {
|
|
return asm volatile ("svc #0"
|
|
: [ret] "={x0}" (-> usize),
|
|
: [number] "{x8}" (@intFromEnum(number)),
|
|
[arg1] "{x0}" (arg1),
|
|
: "memory", "cc"
|
|
);
|
|
}
|
|
|
|
pub fn syscall2(number: SYS, arg1: usize, arg2: usize) usize {
|
|
return asm volatile ("svc #0"
|
|
: [ret] "={x0}" (-> usize),
|
|
: [number] "{x8}" (@intFromEnum(number)),
|
|
[arg1] "{x0}" (arg1),
|
|
[arg2] "{x1}" (arg2),
|
|
: "memory", "cc"
|
|
);
|
|
}
|
|
|
|
pub fn syscall3(number: SYS, arg1: usize, arg2: usize, arg3: usize) usize {
|
|
return asm volatile ("svc #0"
|
|
: [ret] "={x0}" (-> usize),
|
|
: [number] "{x8}" (@intFromEnum(number)),
|
|
[arg1] "{x0}" (arg1),
|
|
[arg2] "{x1}" (arg2),
|
|
[arg3] "{x2}" (arg3),
|
|
: "memory", "cc"
|
|
);
|
|
}
|
|
|
|
pub fn syscall4(number: SYS, arg1: usize, arg2: usize, arg3: usize, arg4: usize) usize {
|
|
return asm volatile ("svc #0"
|
|
: [ret] "={x0}" (-> usize),
|
|
: [number] "{x8}" (@intFromEnum(number)),
|
|
[arg1] "{x0}" (arg1),
|
|
[arg2] "{x1}" (arg2),
|
|
[arg3] "{x2}" (arg3),
|
|
[arg4] "{x3}" (arg4),
|
|
: "memory", "cc"
|
|
);
|
|
}
|
|
|
|
pub fn syscall5(number: SYS, arg1: usize, arg2: usize, arg3: usize, arg4: usize, arg5: usize) usize {
|
|
return asm volatile ("svc #0"
|
|
: [ret] "={x0}" (-> usize),
|
|
: [number] "{x8}" (@intFromEnum(number)),
|
|
[arg1] "{x0}" (arg1),
|
|
[arg2] "{x1}" (arg2),
|
|
[arg3] "{x2}" (arg3),
|
|
[arg4] "{x3}" (arg4),
|
|
[arg5] "{x4}" (arg5),
|
|
: "memory", "cc"
|
|
);
|
|
}
|
|
|
|
pub fn syscall6(
|
|
number: SYS,
|
|
arg1: usize,
|
|
arg2: usize,
|
|
arg3: usize,
|
|
arg4: usize,
|
|
arg5: usize,
|
|
arg6: usize,
|
|
) usize {
|
|
return asm volatile ("svc #0"
|
|
: [ret] "={x0}" (-> usize),
|
|
: [number] "{x8}" (@intFromEnum(number)),
|
|
[arg1] "{x0}" (arg1),
|
|
[arg2] "{x1}" (arg2),
|
|
[arg3] "{x2}" (arg3),
|
|
[arg4] "{x3}" (arg4),
|
|
[arg5] "{x4}" (arg5),
|
|
[arg6] "{x5}" (arg6),
|
|
: "memory", "cc"
|
|
);
|
|
}
|
|
|
|
const CloneFn = *const fn (arg: usize) callconv(.C) u8;
|
|
|
|
/// This matches the libc clone function.
|
|
pub extern fn clone(func: CloneFn, stack: usize, flags: u32, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
|
|
|
|
pub const restore = restore_rt;
|
|
|
|
pub fn restore_rt() callconv(.Naked) void {
|
|
switch (@import("builtin").zig_backend) {
|
|
.stage2_c => return asm volatile (
|
|
\\ mov x8, %[number]
|
|
\\ svc #0
|
|
:
|
|
: [number] "i" (@intFromEnum(SYS.rt_sigreturn)),
|
|
: "memory", "cc"
|
|
),
|
|
else => return asm volatile ("svc #0"
|
|
:
|
|
: [number] "{x8}" (@intFromEnum(SYS.rt_sigreturn)),
|
|
: "memory", "cc"
|
|
),
|
|
}
|
|
}
|
|
|
|
pub const O = struct {
|
|
pub const CREAT = 0o100;
|
|
pub const EXCL = 0o200;
|
|
pub const NOCTTY = 0o400;
|
|
pub const TRUNC = 0o1000;
|
|
pub const APPEND = 0o2000;
|
|
pub const NONBLOCK = 0o4000;
|
|
pub const DSYNC = 0o10000;
|
|
pub const SYNC = 0o4010000;
|
|
pub const RSYNC = 0o4010000;
|
|
pub const DIRECTORY = 0o40000;
|
|
pub const NOFOLLOW = 0o100000;
|
|
pub const CLOEXEC = 0o2000000;
|
|
|
|
pub const ASYNC = 0o20000;
|
|
pub const DIRECT = 0o200000;
|
|
pub const LARGEFILE = 0o400000;
|
|
pub const NOATIME = 0o1000000;
|
|
pub const PATH = 0o10000000;
|
|
pub const TMPFILE = 0o20040000;
|
|
pub const NDELAY = NONBLOCK;
|
|
};
|
|
|
|
pub const F = struct {
|
|
pub const DUPFD = 0;
|
|
pub const GETFD = 1;
|
|
pub const SETFD = 2;
|
|
pub const GETFL = 3;
|
|
pub const SETFL = 4;
|
|
|
|
pub const SETOWN = 8;
|
|
pub const GETOWN = 9;
|
|
pub const SETSIG = 10;
|
|
pub const GETSIG = 11;
|
|
|
|
pub const GETLK = 5;
|
|
pub const SETLK = 6;
|
|
pub const SETLKW = 7;
|
|
|
|
pub const RDLCK = 0;
|
|
pub const WRLCK = 1;
|
|
pub const UNLCK = 2;
|
|
|
|
pub const SETOWN_EX = 15;
|
|
pub const GETOWN_EX = 16;
|
|
|
|
pub const GETOWNER_UIDS = 17;
|
|
};
|
|
|
|
pub const LOCK = struct {
|
|
pub const SH = 1;
|
|
pub const EX = 2;
|
|
pub const UN = 8;
|
|
pub const NB = 4;
|
|
};
|
|
|
|
pub const MAP = struct {
|
|
/// stack-like segment
|
|
pub const GROWSDOWN = 0x0100;
|
|
/// ETXTBSY
|
|
pub const DENYWRITE = 0x0800;
|
|
/// mark it as an executable
|
|
pub const EXECUTABLE = 0x1000;
|
|
/// pages are locked
|
|
pub const LOCKED = 0x2000;
|
|
/// don't check for reservations
|
|
pub const NORESERVE = 0x4000;
|
|
};
|
|
|
|
pub const VDSO = struct {
|
|
pub const CGT_SYM = "__kernel_clock_gettime";
|
|
pub const CGT_VER = "LINUX_2.6.39";
|
|
};
|
|
|
|
pub const Flock = extern struct {
|
|
type: i16,
|
|
whence: i16,
|
|
start: off_t,
|
|
len: off_t,
|
|
pid: pid_t,
|
|
__unused: [4]u8,
|
|
};
|
|
|
|
pub const msghdr = extern struct {
|
|
name: ?*sockaddr,
|
|
namelen: socklen_t,
|
|
iov: [*]iovec,
|
|
iovlen: i32,
|
|
__pad1: i32 = 0,
|
|
control: ?*anyopaque,
|
|
controllen: socklen_t,
|
|
__pad2: socklen_t = 0,
|
|
flags: i32,
|
|
};
|
|
|
|
pub const msghdr_const = extern struct {
|
|
name: ?*const sockaddr,
|
|
namelen: socklen_t,
|
|
iov: [*]const iovec_const,
|
|
iovlen: i32,
|
|
__pad1: i32 = 0,
|
|
control: ?*const anyopaque,
|
|
controllen: socklen_t,
|
|
__pad2: socklen_t = 0,
|
|
flags: i32,
|
|
};
|
|
|
|
pub const blksize_t = i32;
|
|
pub const nlink_t = u32;
|
|
pub const time_t = isize;
|
|
pub const mode_t = u32;
|
|
pub const off_t = isize;
|
|
pub const ino_t = usize;
|
|
pub const dev_t = usize;
|
|
pub const blkcnt_t = isize;
|
|
|
|
// The `stat` definition used by the Linux kernel.
|
|
pub const Stat = extern struct {
|
|
dev: dev_t,
|
|
ino: ino_t,
|
|
mode: mode_t,
|
|
nlink: nlink_t,
|
|
uid: uid_t,
|
|
gid: gid_t,
|
|
rdev: dev_t,
|
|
__pad: usize,
|
|
size: off_t,
|
|
blksize: blksize_t,
|
|
__pad2: i32,
|
|
blocks: blkcnt_t,
|
|
atim: timespec,
|
|
mtim: timespec,
|
|
ctim: timespec,
|
|
__unused: [2]u32,
|
|
|
|
pub fn atime(self: @This()) timespec {
|
|
return self.atim;
|
|
}
|
|
|
|
pub fn mtime(self: @This()) timespec {
|
|
return self.mtim;
|
|
}
|
|
|
|
pub fn ctime(self: @This()) timespec {
|
|
return self.ctim;
|
|
}
|
|
};
|
|
|
|
pub const timeval = extern struct {
|
|
tv_sec: isize,
|
|
tv_usec: isize,
|
|
};
|
|
|
|
pub const timezone = extern struct {
|
|
tz_minuteswest: i32,
|
|
tz_dsttime: i32,
|
|
};
|
|
|
|
pub const mcontext_t = extern struct {
|
|
fault_address: usize,
|
|
regs: [31]usize,
|
|
sp: usize,
|
|
pc: usize,
|
|
pstate: usize,
|
|
// Make sure the field is correctly aligned since this area
|
|
// holds various FP/vector registers
|
|
reserved1: [256 * 16]u8 align(16),
|
|
};
|
|
|
|
pub const ucontext_t = extern struct {
|
|
flags: usize,
|
|
link: ?*ucontext_t,
|
|
stack: stack_t,
|
|
sigmask: sigset_t,
|
|
mcontext: mcontext_t,
|
|
};
|
|
|
|
pub const Elf_Symndx = u32;
|