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zig/lib/std/os/linux/x86_64.zig
Isaac Freund 9f9f215305
stage1, stage2: rename c_void to anyopaque (#10316) 
zig fmt now replaces c_void with anyopaque to make updating
code easy.
2021-12-19 00:24:45 -05:00

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const std = @import("../../std.zig");
const maxInt = std.math.maxInt;
const linux = std.os.linux;
const iovec = std.os.iovec;
const iovec_const = std.os.iovec_const;
const pid_t = linux.pid_t;
const uid_t = linux.uid_t;
const gid_t = linux.gid_t;
const clock_t = linux.clock_t;
const stack_t = linux.stack_t;
const sigset_t = linux.sigset_t;
const sockaddr = linux.sockaddr;
const socklen_t = linux.socklen_t;
const timespec = linux.timespec;
pub fn syscall0(number: SYS) usize {
return asm volatile ("syscall"
: [ret] "={rax}" (-> usize),
: [number] "{rax}" (@enumToInt(number)),
: "rcx", "r11", "memory"
);
}
pub fn syscall1(number: SYS, arg1: usize) usize {
return asm volatile ("syscall"
: [ret] "={rax}" (-> usize),
: [number] "{rax}" (@enumToInt(number)),
[arg1] "{rdi}" (arg1),
: "rcx", "r11", "memory"
);
}
pub fn syscall2(number: SYS, arg1: usize, arg2: usize) usize {
return asm volatile ("syscall"
: [ret] "={rax}" (-> usize),
: [number] "{rax}" (@enumToInt(number)),
[arg1] "{rdi}" (arg1),
[arg2] "{rsi}" (arg2),
: "rcx", "r11", "memory"
);
}
pub fn syscall3(number: SYS, arg1: usize, arg2: usize, arg3: usize) usize {
return asm volatile ("syscall"
: [ret] "={rax}" (-> usize),
: [number] "{rax}" (@enumToInt(number)),
[arg1] "{rdi}" (arg1),
[arg2] "{rsi}" (arg2),
[arg3] "{rdx}" (arg3),
: "rcx", "r11", "memory"
);
}
pub fn syscall4(number: SYS, arg1: usize, arg2: usize, arg3: usize, arg4: usize) usize {
return asm volatile ("syscall"
: [ret] "={rax}" (-> usize),
: [number] "{rax}" (@enumToInt(number)),
[arg1] "{rdi}" (arg1),
[arg2] "{rsi}" (arg2),
[arg3] "{rdx}" (arg3),
[arg4] "{r10}" (arg4),
: "rcx", "r11", "memory"
);
}
pub fn syscall5(number: SYS, arg1: usize, arg2: usize, arg3: usize, arg4: usize, arg5: usize) usize {
return asm volatile ("syscall"
: [ret] "={rax}" (-> usize),
: [number] "{rax}" (@enumToInt(number)),
[arg1] "{rdi}" (arg1),
[arg2] "{rsi}" (arg2),
[arg3] "{rdx}" (arg3),
[arg4] "{r10}" (arg4),
[arg5] "{r8}" (arg5),
: "rcx", "r11", "memory"
);
}
pub fn syscall6(
number: SYS,
arg1: usize,
arg2: usize,
arg3: usize,
arg4: usize,
arg5: usize,
arg6: usize,
) usize {
return asm volatile ("syscall"
: [ret] "={rax}" (-> usize),
: [number] "{rax}" (@enumToInt(number)),
[arg1] "{rdi}" (arg1),
[arg2] "{rsi}" (arg2),
[arg3] "{rdx}" (arg3),
[arg4] "{r10}" (arg4),
[arg5] "{r8}" (arg5),
[arg6] "{r9}" (arg6),
: "rcx", "r11", "memory"
);
}
/// This matches the libc clone function.
pub extern fn clone(func: fn (arg: usize) callconv(.C) u8, stack: usize, flags: usize, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
pub const restore = restore_rt;
pub fn restore_rt() callconv(.Naked) void {
return asm volatile ("syscall"
:
: [number] "{rax}" (@enumToInt(SYS.rt_sigreturn)),
: "rcx", "r11", "memory"
);
}
pub const mode_t = usize;
pub const time_t = isize;
pub const nlink_t = usize;
pub const blksize_t = isize;
pub const blkcnt_t = isize;
pub const SYS = enum(usize) {
read = 0,
write = 1,
open = 2,
close = 3,
stat = 4,
fstat = 5,
lstat = 6,
poll = 7,
lseek = 8,
mmap = 9,
mprotect = 10,
munmap = 11,
brk = 12,
rt_sigaction = 13,
rt_sigprocmask = 14,
rt_sigreturn = 15,
ioctl = 16,
pread = 17,
pwrite = 18,
readv = 19,
writev = 20,
access = 21,
pipe = 22,
select = 23,
sched_yield = 24,
mremap = 25,
msync = 26,
mincore = 27,
madvise = 28,
shmget = 29,
shmat = 30,
shmctl = 31,
dup = 32,
dup2 = 33,
pause = 34,
nanosleep = 35,
getitimer = 36,
alarm = 37,
setitimer = 38,
getpid = 39,
sendfile = 40,
socket = 41,
connect = 42,
accept = 43,
sendto = 44,
recvfrom = 45,
sendmsg = 46,
recvmsg = 47,
shutdown = 48,
bind = 49,
listen = 50,
getsockname = 51,
getpeername = 52,
socketpair = 53,
setsockopt = 54,
getsockopt = 55,
clone = 56,
fork = 57,
vfork = 58,
execve = 59,
exit = 60,
wait4 = 61,
kill = 62,
uname = 63,
semget = 64,
semop = 65,
semctl = 66,
shmdt = 67,
msgget = 68,
msgsnd = 69,
msgrcv = 70,
msgctl = 71,
fcntl = 72,
flock = 73,
fsync = 74,
fdatasync = 75,
truncate = 76,
ftruncate = 77,
getdents = 78,
getcwd = 79,
chdir = 80,
fchdir = 81,
rename = 82,
mkdir = 83,
rmdir = 84,
creat = 85,
link = 86,
unlink = 87,
symlink = 88,
readlink = 89,
chmod = 90,
fchmod = 91,
chown = 92,
fchown = 93,
lchown = 94,
umask = 95,
gettimeofday = 96,
getrlimit = 97,
getrusage = 98,
sysinfo = 99,
times = 100,
ptrace = 101,
getuid = 102,
syslog = 103,
getgid = 104,
setuid = 105,
setgid = 106,
geteuid = 107,
getegid = 108,
setpgid = 109,
getppid = 110,
getpgrp = 111,
setsid = 112,
setreuid = 113,
setregid = 114,
getgroups = 115,
setgroups = 116,
setresuid = 117,
getresuid = 118,
setresgid = 119,
getresgid = 120,
getpgid = 121,
setfsuid = 122,
setfsgid = 123,
getsid = 124,
capget = 125,
capset = 126,
rt_sigpending = 127,
rt_sigtimedwait = 128,
rt_sigqueueinfo = 129,
rt_sigsuspend = 130,
sigaltstack = 131,
utime = 132,
mknod = 133,
uselib = 134,
personality = 135,
ustat = 136,
statfs = 137,
fstatfs = 138,
sysfs = 139,
getpriority = 140,
setpriority = 141,
sched_setparam = 142,
sched_getparam = 143,
sched_setscheduler = 144,
sched_getscheduler = 145,
sched_get_priority_max = 146,
sched_get_priority_min = 147,
sched_rr_get_interval = 148,
mlock = 149,
munlock = 150,
mlockall = 151,
munlockall = 152,
vhangup = 153,
modify_ldt = 154,
pivot_root = 155,
_sysctl = 156,
prctl = 157,
arch_prctl = 158,
adjtimex = 159,
setrlimit = 160,
chroot = 161,
sync = 162,
acct = 163,
settimeofday = 164,
mount = 165,
umount2 = 166,
swapon = 167,
swapoff = 168,
reboot = 169,
sethostname = 170,
setdomainname = 171,
iopl = 172,
ioperm = 173,
create_module = 174,
init_module = 175,
delete_module = 176,
get_kernel_syms = 177,
query_module = 178,
quotactl = 179,
nfsservctl = 180,
getpmsg = 181,
putpmsg = 182,
afs_syscall = 183,
tuxcall = 184,
security = 185,
gettid = 186,
readahead = 187,
setxattr = 188,
lsetxattr = 189,
fsetxattr = 190,
getxattr = 191,
lgetxattr = 192,
fgetxattr = 193,
listxattr = 194,
llistxattr = 195,
flistxattr = 196,
removexattr = 197,
lremovexattr = 198,
fremovexattr = 199,
tkill = 200,
time = 201,
futex = 202,
sched_setaffinity = 203,
sched_getaffinity = 204,
set_thread_area = 205,
io_setup = 206,
io_destroy = 207,
io_getevents = 208,
io_submit = 209,
io_cancel = 210,
get_thread_area = 211,
lookup_dcookie = 212,
epoll_create = 213,
epoll_ctl_old = 214,
epoll_wait_old = 215,
remap_file_pages = 216,
getdents64 = 217,
set_tid_address = 218,
restart_syscall = 219,
semtimedop = 220,
fadvise64 = 221,
timer_create = 222,
timer_settime = 223,
timer_gettime = 224,
timer_getoverrun = 225,
timer_delete = 226,
clock_settime = 227,
clock_gettime = 228,
clock_getres = 229,
clock_nanosleep = 230,
exit_group = 231,
epoll_wait = 232,
epoll_ctl = 233,
tgkill = 234,
utimes = 235,
vserver = 236,
mbind = 237,
set_mempolicy = 238,
get_mempolicy = 239,
mq_open = 240,
mq_unlink = 241,
mq_timedsend = 242,
mq_timedreceive = 243,
mq_notify = 244,
mq_getsetattr = 245,
kexec_load = 246,
waitid = 247,
add_key = 248,
request_key = 249,
keyctl = 250,
ioprio_set = 251,
ioprio_get = 252,
inotify_init = 253,
inotify_add_watch = 254,
inotify_rm_watch = 255,
migrate_pages = 256,
openat = 257,
mkdirat = 258,
mknodat = 259,
fchownat = 260,
futimesat = 261,
fstatat = 262,
unlinkat = 263,
renameat = 264,
linkat = 265,
symlinkat = 266,
readlinkat = 267,
fchmodat = 268,
faccessat = 269,
pselect6 = 270,
ppoll = 271,
unshare = 272,
set_robust_list = 273,
get_robust_list = 274,
splice = 275,
tee = 276,
sync_file_range = 277,
vmsplice = 278,
move_pages = 279,
utimensat = 280,
epoll_pwait = 281,
signalfd = 282,
timerfd_create = 283,
eventfd = 284,
fallocate = 285,
timerfd_settime = 286,
timerfd_gettime = 287,
accept4 = 288,
signalfd4 = 289,
eventfd2 = 290,
epoll_create1 = 291,
dup3 = 292,
pipe2 = 293,
inotify_init1 = 294,
preadv = 295,
pwritev = 296,
rt_tgsigqueueinfo = 297,
perf_event_open = 298,
recvmmsg = 299,
fanotify_init = 300,
fanotify_mark = 301,
prlimit64 = 302,
name_to_handle_at = 303,
open_by_handle_at = 304,
clock_adjtime = 305,
syncfs = 306,
sendmmsg = 307,
setns = 308,
getcpu = 309,
process_vm_readv = 310,
process_vm_writev = 311,
kcmp = 312,
finit_module = 313,
sched_setattr = 314,
sched_getattr = 315,
renameat2 = 316,
seccomp = 317,
getrandom = 318,
memfd_create = 319,
kexec_file_load = 320,
bpf = 321,
execveat = 322,
userfaultfd = 323,
membarrier = 324,
mlock2 = 325,
copy_file_range = 326,
preadv2 = 327,
pwritev2 = 328,
pkey_mprotect = 329,
pkey_alloc = 330,
pkey_free = 331,
statx = 332,
io_pgetevents = 333,
rseq = 334,
pidfd_send_signal = 424,
io_uring_setup = 425,
io_uring_enter = 426,
io_uring_register = 427,
open_tree = 428,
move_mount = 429,
fsopen = 430,
fsconfig = 431,
fsmount = 432,
fspick = 433,
pidfd_open = 434,
clone3 = 435,
close_range = 436,
openat2 = 437,
pidfd_getfd = 438,
faccessat2 = 439,
process_madvise = 440,
epoll_pwait2 = 441,
mount_setattr = 442,
landlock_create_ruleset = 444,
landlock_add_rule = 445,
landlock_restrict_self = 446,
memfd_secret = 447,
_,
};
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 = 0o200000;
pub const NOFOLLOW = 0o400000;
pub const CLOEXEC = 0o2000000;
pub const ASYNC = 0o20000;
pub const DIRECT = 0o40000;
pub const LARGEFILE = 0;
pub const NOATIME = 0o1000000;
pub const PATH = 0o10000000;
pub const TMPFILE = 0o20200000;
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 GETLK = 5;
pub const SETLK = 6;
pub const SETLKW = 7;
pub const SETOWN = 8;
pub const GETOWN = 9;
pub const SETSIG = 10;
pub const GETSIG = 11;
pub const SETOWN_EX = 15;
pub const GETOWN_EX = 16;
pub const GETOWNER_UIDS = 17;
pub const RDLCK = 0;
pub const WRLCK = 1;
pub const UNLCK = 2;
};
pub const MAP = struct {
/// only give out 32bit addresses
pub const @"32BIT" = 0x40;
/// 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 = "__vdso_clock_gettime";
pub const CGT_VER = "LINUX_2.6";
pub const GETCPU_SYM = "__vdso_getcpu";
pub const GETCPU_VER = "LINUX_2.6";
};
pub const ARCH = struct {
pub const SET_GS = 0x1001;
pub const SET_FS = 0x1002;
pub const GET_FS = 0x1003;
pub const GET_GS = 0x1004;
};
pub const REG = struct {
pub const R8 = 0;
pub const R9 = 1;
pub const R10 = 2;
pub const R11 = 3;
pub const R12 = 4;
pub const R13 = 5;
pub const R14 = 6;
pub const R15 = 7;
pub const RDI = 8;
pub const RSI = 9;
pub const RBP = 10;
pub const RBX = 11;
pub const RDX = 12;
pub const RAX = 13;
pub const RCX = 14;
pub const RSP = 15;
pub const RIP = 16;
pub const EFL = 17;
pub const CSGSFS = 18;
pub const ERR = 19;
pub const TRAPNO = 20;
pub const OLDMASK = 21;
pub const CR2 = 22;
};
pub const LOCK = struct {
pub const SH = 1;
pub const EX = 2;
pub const NB = 4;
pub const UN = 8;
};
pub const Flock = extern struct {
type: i16,
whence: i16,
start: off_t,
len: off_t,
pid: pid_t,
};
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: [*]iovec_const,
iovlen: i32,
__pad1: i32 = 0,
control: ?*anyopaque,
controllen: socklen_t,
__pad2: socklen_t = 0,
flags: i32,
};
pub const off_t = i64;
pub const ino_t = u64;
pub const dev_t = u64;
// The `stat` definition used by the Linux kernel.
pub const Stat = extern struct {
dev: dev_t,
ino: ino_t,
nlink: usize,
mode: u32,
uid: uid_t,
gid: gid_t,
__pad0: u32,
rdev: dev_t,
size: off_t,
blksize: isize,
blocks: i64,
atim: timespec,
mtim: timespec,
ctim: timespec,
__unused: [3]isize,
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 Elf_Symndx = u32;
pub const greg_t = usize;
pub const gregset_t = [23]greg_t;
pub const fpstate = extern struct {
cwd: u16,
swd: u16,
ftw: u16,
fop: u16,
rip: usize,
rdp: usize,
mxcsr: u32,
mxcr_mask: u32,
st: [8]extern struct {
significand: [4]u16,
exponent: u16,
padding: [3]u16 = undefined,
},
xmm: [16]extern struct {
element: [4]u32,
},
padding: [24]u32 = undefined,
};
pub const fpregset_t = *fpstate;
pub const sigcontext = extern struct {
r8: usize,
r9: usize,
r10: usize,
r11: usize,
r12: usize,
r13: usize,
r14: usize,
r15: usize,
rdi: usize,
rsi: usize,
rbp: usize,
rbx: usize,
rdx: usize,
rax: usize,
rcx: usize,
rsp: usize,
rip: usize,
eflags: usize,
cs: u16,
gs: u16,
fs: u16,
pad0: u16 = undefined,
err: usize,
trapno: usize,
oldmask: usize,
cr2: usize,
fpstate: *fpstate,
reserved1: [8]usize = undefined,
};
pub const mcontext_t = extern struct {
gregs: gregset_t,
fpregs: fpregset_t,
reserved1: [8]usize = undefined,
};
pub const ucontext_t = extern struct {
flags: usize,
link: *ucontext_t,
stack: stack_t,
mcontext: mcontext_t,
sigmask: sigset_t,
fpregs_mem: [64]usize,
};
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