ref: f7fc1cd4e2b36f2ae8d124c4654eac7f48aadff8
dir: /support/syscall-gen/specials+openbsd:6.2-x64.frag/
/* process control */
const exit : (status:int -> void)
const getpid : ( -> pid)
const kill : (pid:pid, sig:int64 -> int64)
const fork : (-> pid)
const wait4 : (pid:pid, loc:int32#, opt : int64, usage:rusage# -> int64)
const waitpid : (pid:pid, loc:int32#, opt : int64 -> int64)
const execv : (cmd : byte[:], args : byte[:][:] -> int64)
const execve : (cmd : byte[:], args : byte[:][:], env : byte[:][:] -> int64)
/* wrappers to extract wait status */
const waitstatus : (st : int32 -> waitstatus)
extern const __tfork_thread : (tfp : tforkparams#, sz : size, fn : void#, arg : void# -> pid)
/* fd manipulation */
const open : (path:byte[:], opts:fdopt -> fd)
const openmode : (path:byte[:], opts:fdopt, mode:int64 -> fd)
const close : (fd:fd -> int64)
const creat : (path:byte[:], mode:int64 -> fd)
const unlink : (path:byte[:] -> int)
const read : (fd:fd, buf:byte[:] -> size)
const pread : (fd:fd, buf:byte[:], off : off -> size)
const readv : (fd:fd, iov:iovec[:] -> size)
const write : (fd:fd, buf:byte[:] -> size)
const pwrite : (fd:fd, buf:byte[:], off : off -> size)
const writev : (fd:fd, iov:iovec[:] -> size)
const lseek : (fd:fd, off : off, whence : whence -> int64)
const stat : (path:byte[:], sb:statbuf# -> int64)
const lstat : (path:byte[:], sb:statbuf# -> int64)
const fstat : (fd:fd, sb:statbuf# -> int64)
const mkdir : (path : byte[:], mode : int64 -> int64)
generic ioctl : (fd:fd, req : int64, arg:@a# -> int64)
const getdents : (fd : fd, buf : byte[:] -> int64)
const chdir : (p : byte[:] -> int64)
const __getcwd : (buf : byte[:] -> int64)
const poll : (pfd : pollfd[:], tm : int -> int)
/* signals */
const sigaction : (sig : signo, act : sigaction#, oact : sigaction# -> int)
const sigprocmask : (how : int32, set : sigset#, oset : sigset# -> int)
/* fd stuff */
const pipe : (fds : fd[2]# -> int64)
const dup : (fd : fd -> fd)
const dup2 : (src : fd, dst : fd -> fd)
/* NB: the C ABI uses '...' for the args. */
const fcntl : (fd : fd, cmd : fcntlcmd, args : byte# -> int64)
/* networking */
const socket : (dom : sockfam, stype : socktype, proto : sockproto -> fd)
const connect : (sock : fd, addr : sockaddr#, len : size -> int)
const accept : (sock : fd, addr : sockaddr#, len : size# -> fd)
const listen : (sock : fd, backlog : int -> int)
const bind : (sock : fd, addr : sockaddr#, len : size -> int)
const setsockopt : (sock : fd, lev : sockproto, opt : sockopt, val : void#, len : size -> int)
const getsockopt : (sock : fd, lev : sockproto, opt : sockopt, val : void#, len : size# -> int)
/* memory mapping */
const munmap : (addr:byte#, len:size -> int64)
const mmap : (addr:byte#, len:size, prot:mprot, flags:mopt, fd:fd, off:off -> byte#)
/* time - doublecheck if this is right */
const clock_getres : (clk : clock, ts : timespec# -> int32)
const clock_gettime : (clk : clock, ts : timespec# -> int32)
const clock_settime : (clk : clock, ts : timespec# -> int32)
const sleep : (time : uint64 -> int32)
const nanosleep : (req : timespec#, rem : timespec# -> int32)
/* system information */
const uname : (buf : utsname# -> int)
const sysctl : (mib : int[:], \
old : void#, oldsz : size#, \
new : void#, newsz : size# \
-> int)
/*
wraps a syscall argument, converting it to 64 bits for the syscall function. This is
the same as casting, but more concise than writing a cast to uint64
*/
generic a = {x : @t; -> (x : uint64)}
extern const cstring : (str : byte[:] -> byte#)
extern const alloca : (sz : size -> byte#)
extern const __freebsd_pipe : (fds : fd[2]# -> int64)
/* process management */
const exit = {status; syscall(Sysexit, a(status))}
const getpid = {; -> (syscall(Sysgetpid, 1) : pid)}
const kill = {pid, sig; -> syscall(Syskill, pid, sig)}
const fork = {; -> (syscall(Sysfork) : pid)}
const wait4 = {pid, loc, opt, usage; -> syscall(Syswait4, pid, loc, opt, usage)}
const waitpid = {pid, loc, opt;
-> wait4(pid, loc, opt, (0 : rusage#))
}
const execv = {cmd, args
var p, cargs, i
/* of course we fucking have to duplicate this code everywhere,
* since we want to stack allocate... */
p = alloca((args.len + 1)*sizeof(byte#))
cargs = (p : byte##)[:args.len + 1]
for i = 0; i < args.len; i++
cargs[i] = cstring(args[i])
;;
cargs[args.len] = (0 : byte#)
-> syscall(Sysexecve, cstring(cmd), a(p), a(__cenvp))
}
const execve = {cmd, args, env
var cargs, cenv, i
var p
/* copy the args */
p = alloca((args.len + 1)*sizeof(byte#))
cargs = (p : byte##)[:args.len]
for i = 0; i < args.len; i++
cargs[i] = cstring(args[i])
;;
cargs[args.len] = (0 : byte#)
/*
copy the env.
of course we fucking have to duplicate this code everywhere,
since we want to stack allocate...
*/
p = alloca((env.len + 1)*sizeof(byte#))
cenv = (p : byte##)[:env.len]
for i = 0; i < env.len; i++
cenv[i] = cstring(env[i])
;;
cenv[env.len] = (0 : byte#)
-> syscall(Sysexecve, cstring(cmd), a(p), a(cenv))
}
/* fd manipulation */
const open = {path, opts; -> (syscall(Sysopen, cstring(path), a(opts), a(0o777)) : fd)}
const openmode = {path, opts, mode; -> (syscall(Sysopen, cstring(path), a(opts), a(mode)) : fd)}
const close = {fd; -> syscall(Sysclose, a(fd))}
const creat = {path, mode; -> (openmode(path, Ocreat | Otrunc | Owronly, mode) : fd)}
const unlink = {path; -> (syscall(Sysunlink, cstring(path)) : int)}
const read = {fd, buf; -> (syscall(Sysread, a(fd), (buf : byte#), a(buf.len)) : size)}
const pread = {fd, buf, off; -> (syscall(Syspread, a(fd), (buf : byte#), a(buf.len), a(off)) : size)}
const readv = {fd, vec; -> (syscall(Sysreadv, a(fd), (vec : iovec#), a(vec.len)) : size)}
const write = {fd, buf; -> (syscall(Syswrite, a(fd), (buf : byte#), a(buf.len)) : size)}
const pwrite = {fd, buf, off; -> (syscall(Syspwrite, a(fd), (buf : byte#), a(buf.len), a(off)) : size)}
const writev = {fd, vec; -> (syscall(Syswritev, a(fd), (vec : iovec#), a(vec.len)) : size)}
const lseek = {fd, off, whence; -> syscall(Syslseek, a(fd), a(off), a(whence))}
const stat = {path, sb; -> syscall(Sysstat, cstring(path), a(sb))}
const lstat = {path, sb; -> syscall(Syslstat, cstring(path), a(sb))}
const fstat = {fd, sb; -> syscall(Sysfstat, a(fd), a(sb))}
const mkdir = {path, mode; -> (syscall(Sysmkdir, cstring(path), a(mode)) : int64)}
generic ioctl = {fd, req, arg; -> (syscall(Sysioctl, a(fd), a(req), a(arg)) : int64)}
const chdir = {dir; -> syscall(Syschdir, cstring(dir))}
const __getcwd = {buf; -> syscall(Sys__getcwd, a(buf), a(buf.len))}
const getdents = {fd, buf; -> (syscall(Sysgetdents, a(fd), a(buf), a(buf.len)) : int64)}
/* signals */
const sigaction = {sig, act, oact; -> (syscall(Syssigaction, a(sig), a(act), a(oact)) : int)}
const sigprocmask = {sig, act, oact; -> (syscall(Syssigprocmask, a(sig), a(act), a(oact)) : int)}
/* file stuff */
const pipe = {fds; -> syscall(Syspipe, fds)}
const dup = {fd; -> (syscall(Sysdup, a(fd)) : fd)}
const dup2 = {src, dst; -> (syscall(Sysdup2, a(src), a(dst)) : fd)}
const fcntl = {fd, cmd, args; -> syscall(Sysfcntl, a(fd), a(cmd), a(args))}
const poll = {pfd, tm; -> (syscall(Syspoll, (pfd : byte#), a(pfd.len), a(tm)) : int)}
/* networking */
const socket = {dom, stype, proto; -> (syscall(Syssocket, a(dom), a(stype), a(proto)) : fd)}
const connect = {sock, addr, len; -> (syscall(Sysconnect, a(sock), a(addr), a(len)) : int)}
const accept = {sock, addr, len; -> (syscall(Sysaccept, a(sock), a(addr), a(len)) : fd)}
const listen = {sock, backlog; -> (syscall(Syslisten, a(sock), a(backlog)) : int)}
const bind = {sock, addr, len; -> (syscall(Sysbind, a(sock), a(addr), a(len)) : int)}
const setsockopt = {sock, lev, opt, val, len; -> (syscall(Syssetsockopt, a(sock), a(lev), a(opt), a(val), a(len)) : int)}
const getsockopt = {sock, lev, opt, val, len; -> (syscall(Syssetsockopt, a(sock), a(lev), a(opt), a(val), a(len)) : int)}
/* memory management */
const munmap = {addr, len; -> syscall(Sysmunmap, a(addr), a(len))}
const mmap = {addr, len, prot, flags, fd, off;
/* the actual syscall has padding on the offset arg */
-> (syscall(Sysmmap, a(addr), a(len), a(prot), a(flags), a(fd), a(0), a(off)) : byte#)
}
/* time */
const clock_getres = {clk, ts; -> (syscall(Sysclock_getres, clockid(clk), a(ts)) : int32)}
const clock_gettime = {clk, ts; -> (syscall(Sysclock_gettime, clockid(clk), a(ts)) : int32)}
const clock_settime = {clk, ts; -> (syscall(Sysclock_settime, clockid(clk), a(ts)) : int32)}
const sleep = {time
var req, rem
req = [.sec = time, .nsec = 0]
-> nanosleep(&req, &rem)
}
const nanosleep = {req, rem; -> (syscall(Sysnanosleep, a(req), a(rem)) : int32)}
/* system information */
const uname = {buf
var mib : int[2]
var ret
var sys, syssz
var nod, nodsz
var rel, relsz
var ver, versz
var mach, machsz
ret = 0
mib[0] = 1 /* CTL_KERN */
mib[1] = 1 /* KERN_OSTYPE */
sys = (buf.system[:] : void#)
syssz = buf.system.len
ret = sysctl(mib[:], sys, &syssz, (0 : void#), (0 : size#))
if ret < 0
-> ret
;;
mib[0] = 1 /* CTL_KERN */
mib[1] = 10 /* KERN_HOSTNAME */
nod = (buf.node[:] : void#)
nodsz = buf.node.len
ret = sysctl(mib[:], nod, &nodsz, (0 : void#), (0 : size#))
if ret < 0
-> ret
;;
mib[0] = 1 /* CTL_KERN */
mib[1] = 2 /* KERN_OSRELEASE */
rel = (buf.release[:] : void#)
relsz = buf.release.len
ret = sysctl(mib[:], rel, &relsz, (0 : void#), (0 : size#))
if ret < 0
-> ret
;;
mib[0] = 1 /* CTL_KERN */
mib[1] = 27 /* KERN_OSVERSION */
ver = (buf.version[:] : void#)
versz = buf.version.len
ret = sysctl(mib[:], ver, &versz, (0 : void#), (0 : size#))
if ret < 0
-> ret
;;
mib[0] = 6 /* CTL_HW */
mib[1] = 1 /* HW_MACHINE */
mach = (buf.machine[:] : void#)
machsz = buf.machine.len
ret = sysctl(mib[:], mach, &machsz, (0 : void#), (0 : size#))
if ret < 0
-> ret
;;
-> 0
}
const sysctl = {mib, old, oldsz, new, newsz
/* all args already passed through a() or ar ptrs */
-> (syscall(Syssysctl, \
(mib : int#), a(mib.len), old, oldsz, new, newsz) : int)
}
const clockid = {clk
match clk
| `Clockrealtime: -> 0
| `Clockproccputime: -> 2
| `Clockmonotonic: -> 3
| `Clockthreadcputime: -> 4
| `Clockuptime: -> 5
;;
-> -1
}
const waitstatus = {st
if st < 0
-> `Waitfail st
;;
match st & 0o177
| 0: -> `Waitexit (st >> 8)
| 0x7f:-> `Waitstop (st >> 8)
| sig: -> `Waitsig sig
;;
}