1 // Copyright 2009,2010 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
5 // FreeBSD system calls.
6 // This file is compiled as ordinary Go code,
7 // but it is also input to mksyscall,
8 // which parses the //sys lines and generates system call stubs.
9 // Note that sometimes we use a lowercase //sys name and wrap
10 // it in our own nicer implementation, either here or in
11 // syscall_bsd.go or syscall_unix.go.
21 SYS_FSTAT_FREEBSD12 = 551 // { int fstat(int fd, _Out_ struct stat *sb); }
22 SYS_FSTATAT_FREEBSD12 = 552 // { int fstatat(int fd, _In_z_ char *path, \
23 SYS_GETDIRENTRIES_FREEBSD12 = 554 // { ssize_t getdirentries(int fd, \
24 SYS_STATFS_FREEBSD12 = 555 // { int statfs(_In_z_ char *path, \
25 SYS_FSTATFS_FREEBSD12 = 556 // { int fstatfs(int fd, \
26 SYS_GETFSSTAT_FREEBSD12 = 557 // { int getfsstat( \
27 SYS_MKNODAT_FREEBSD12 = 559 // { int mknodat(int fd, _In_z_ char *path, \
30 // See https://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/versions.html.
32 osreldateOnce sync.Once
36 // INO64_FIRST from /usr/src/lib/libc/sys/compat-ino64.h
37 const _ino64First = 1200031
39 func supportsABI(ver uint32) bool {
40 osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") })
41 return osreldate >= ver
44 // SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
45 type SockaddrDatalink struct {
54 raw RawSockaddrDatalink
57 func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
58 return nil, EAFNOSUPPORT
61 // Translate "kern.hostname" to []_C_int{0,1,2,3}.
62 func nametomib(name string) (mib []_C_int, err error) {
63 const siz = unsafe.Sizeof(mib[0])
65 // NOTE(rsc): It seems strange to set the buffer to have
66 // size CTL_MAXNAME+2 but use only CTL_MAXNAME
67 // as the size. I don't know why the +2 is here, but the
68 // kernel uses +2 for its own implementation of this function.
69 // I am scared that if we don't include the +2 here, the kernel
70 // will silently write 2 words farther than we specify
71 // and we'll get memory corruption.
72 var buf [CTL_MAXNAME + 2]_C_int
73 n := uintptr(CTL_MAXNAME) * siz
75 p := (*byte)(unsafe.Pointer(&buf[0]))
76 bytes, err := ByteSliceFromString(name)
81 // Magic sysctl: "setting" 0.3 to a string name
82 // lets you read back the array of integers form.
83 if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil {
86 return buf[0 : n/siz], nil
89 func direntIno(buf []byte) (uint64, bool) {
90 return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno))
93 func direntReclen(buf []byte) (uint64, bool) {
94 return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen))
97 func direntNamlen(buf []byte) (uint64, bool) {
98 return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen))
101 func Pipe(p []int) (err error) {
105 //sysnb pipe2(p *[2]_C_int, flags int) (err error)
107 func Pipe2(p []int, flags int) error {
112 err := pipe2(&pp, flags)
118 func GetsockoptIPMreqn(fd, level, opt int) (*IPMreqn, error) {
120 vallen := _Socklen(SizeofIPMreqn)
121 errno := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
125 func SetsockoptIPMreqn(fd, level, opt int, mreq *IPMreqn) (err error) {
126 return setsockopt(fd, level, opt, unsafe.Pointer(mreq), unsafe.Sizeof(*mreq))
129 func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) {
130 var rsa RawSockaddrAny
131 var len _Socklen = SizeofSockaddrAny
132 nfd, err = accept4(fd, &rsa, &len, flags)
136 if len > SizeofSockaddrAny {
137 panic("RawSockaddrAny too small")
139 sa, err = anyToSockaddr(fd, &rsa)
147 //sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
149 func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
153 oldBuf []statfs_freebsd11_t
158 if supportsABI(_ino64First) {
159 _p0 = unsafe.Pointer(&buf[0])
160 bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
163 oldBuf = make([]statfs_freebsd11_t, n)
164 _p0 = unsafe.Pointer(&oldBuf[0])
165 bufsize = unsafe.Sizeof(statfs_freebsd11_t{}) * uintptr(n)
169 var sysno uintptr = SYS_GETFSSTAT
170 if supportsABI(_ino64First) {
171 sysno = SYS_GETFSSTAT_FREEBSD12
173 r0, _, e1 := Syscall(sysno, uintptr(_p0), bufsize, uintptr(flags))
178 if e1 == 0 && needsConvert {
179 for i := range oldBuf {
180 buf[i].convertFrom(&oldBuf[i])
186 func setattrlistTimes(path string, times []Timespec, flags int) error {
187 // used on Darwin for UtimesNano
191 //sys ioctl(fd int, req uint, arg uintptr) (err error)
193 //sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
195 func Uname(uname *Utsname) error {
196 mib := []_C_int{CTL_KERN, KERN_OSTYPE}
197 n := unsafe.Sizeof(uname.Sysname)
198 if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil {
202 mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
203 n = unsafe.Sizeof(uname.Nodename)
204 if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil {
208 mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
209 n = unsafe.Sizeof(uname.Release)
210 if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil {
214 mib = []_C_int{CTL_KERN, KERN_VERSION}
215 n = unsafe.Sizeof(uname.Version)
216 if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil {
220 // The version might have newlines or tabs in it, convert them to
222 for i, b := range uname.Version {
223 if b == '\n' || b == '\t' {
224 if i == len(uname.Version)-1 {
227 uname.Version[i] = ' '
232 mib = []_C_int{CTL_HW, HW_MACHINE}
233 n = unsafe.Sizeof(uname.Machine)
234 if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil {
241 func Stat(path string, st *Stat_t) (err error) {
242 var oldStat stat_freebsd11_t
243 if supportsABI(_ino64First) {
244 return fstatat_freebsd12(AT_FDCWD, path, st, 0)
246 err = stat(path, &oldStat)
251 st.convertFrom(&oldStat)
255 func Lstat(path string, st *Stat_t) (err error) {
256 var oldStat stat_freebsd11_t
257 if supportsABI(_ino64First) {
258 return fstatat_freebsd12(AT_FDCWD, path, st, AT_SYMLINK_NOFOLLOW)
260 err = lstat(path, &oldStat)
265 st.convertFrom(&oldStat)
269 func Fstat(fd int, st *Stat_t) (err error) {
270 var oldStat stat_freebsd11_t
271 if supportsABI(_ino64First) {
272 return fstat_freebsd12(fd, st)
274 err = fstat(fd, &oldStat)
279 st.convertFrom(&oldStat)
283 func Fstatat(fd int, path string, st *Stat_t, flags int) (err error) {
284 var oldStat stat_freebsd11_t
285 if supportsABI(_ino64First) {
286 return fstatat_freebsd12(fd, path, st, flags)
288 err = fstatat(fd, path, &oldStat, flags)
293 st.convertFrom(&oldStat)
297 func Statfs(path string, st *Statfs_t) (err error) {
298 var oldStatfs statfs_freebsd11_t
299 if supportsABI(_ino64First) {
300 return statfs_freebsd12(path, st)
302 err = statfs(path, &oldStatfs)
307 st.convertFrom(&oldStatfs)
311 func Fstatfs(fd int, st *Statfs_t) (err error) {
312 var oldStatfs statfs_freebsd11_t
313 if supportsABI(_ino64First) {
314 return fstatfs_freebsd12(fd, st)
316 err = fstatfs(fd, &oldStatfs)
321 st.convertFrom(&oldStatfs)
325 func Getdents(fd int, buf []byte) (n int, err error) {
326 return Getdirentries(fd, buf, nil)
329 func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
330 if supportsABI(_ino64First) {
331 if basep == nil || unsafe.Sizeof(*basep) == 8 {
332 return getdirentries_freebsd12(fd, buf, (*uint64)(unsafe.Pointer(basep)))
334 // The freebsd12 syscall needs a 64-bit base. On 32-bit machines
335 // we can't just use the basep passed in. See #32498.
336 var base uint64 = uint64(*basep)
337 n, err = getdirentries_freebsd12(fd, buf, &base)
338 *basep = uintptr(base)
340 // We can't stuff the base back into a uintptr, so any
341 // future calls would be suspect. Generate an error.
342 // EIO is allowed by getdirentries.
348 // The old syscall entries are smaller than the new. Use 1/4 of the original
349 // buffer size rounded up to DIRBLKSIZ (see /usr/src/lib/libc/sys/getdirentries.c).
350 oldBufLen := roundup(len(buf)/4, _dirblksiz)
351 oldBuf := make([]byte, oldBufLen)
352 n, err = getdirentries(fd, oldBuf, basep)
353 if err == nil && n > 0 {
354 n = convertFromDirents11(buf, oldBuf[:n])
359 func Mknod(path string, mode uint32, dev uint64) (err error) {
361 if supportsABI(_ino64First) {
362 return mknodat_freebsd12(AT_FDCWD, path, mode, dev)
365 return mknod(path, mode, oldDev)
368 func Mknodat(fd int, path string, mode uint32, dev uint64) (err error) {
370 if supportsABI(_ino64First) {
371 return mknodat_freebsd12(fd, path, mode, dev)
374 return mknodat(fd, path, mode, oldDev)
377 // round x to the nearest multiple of y, larger or equal to x.
379 // from /usr/include/sys/param.h Macros for counting and rounding.
380 // #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
381 func roundup(x, y int) int {
382 return ((x + y - 1) / y) * y
385 func (s *Stat_t) convertFrom(old *stat_freebsd11_t) {
387 Dev: uint64(old.Dev),
388 Ino: uint64(old.Ino),
389 Nlink: uint64(old.Nlink),
393 Rdev: uint64(old.Rdev),
400 Blksize: old.Blksize,
402 Gen: uint64(old.Gen),
406 func (s *Statfs_t) convertFrom(old *statfs_freebsd11_t) {
408 Version: _statfsVersion,
418 Syncwrites: old.Syncwrites,
419 Asyncwrites: old.Asyncwrites,
420 Syncreads: old.Syncreads,
421 Asyncreads: old.Asyncreads,
423 Namemax: old.Namemax,
432 sl := old.Fstypename[:]
433 n := clen(*(*[]byte)(unsafe.Pointer(&sl)))
434 copy(s.Fstypename[:], old.Fstypename[:n])
436 sl = old.Mntfromname[:]
437 n = clen(*(*[]byte)(unsafe.Pointer(&sl)))
438 copy(s.Mntfromname[:], old.Mntfromname[:n])
440 sl = old.Mntonname[:]
441 n = clen(*(*[]byte)(unsafe.Pointer(&sl)))
442 copy(s.Mntonname[:], old.Mntonname[:n])
445 func convertFromDirents11(buf []byte, old []byte) int {
447 fixedSize = int(unsafe.Offsetof(Dirent{}.Name))
448 oldFixedSize = int(unsafe.Offsetof(dirent_freebsd11{}.Name))
453 for dstPos+fixedSize < len(buf) && srcPos+oldFixedSize < len(old) {
455 var srcDirent dirent_freebsd11
457 // If multiple direntries are written, sometimes when we reach the final one,
458 // we may have cap of old less than size of dirent_freebsd11.
459 copy((*[unsafe.Sizeof(srcDirent)]byte)(unsafe.Pointer(&srcDirent))[:], old[srcPos:])
461 reclen := roundup(fixedSize+int(srcDirent.Namlen)+1, 8)
462 if dstPos+reclen > len(buf) {
466 dstDirent.Fileno = uint64(srcDirent.Fileno)
468 dstDirent.Reclen = uint16(reclen)
469 dstDirent.Type = srcDirent.Type
471 dstDirent.Namlen = uint16(srcDirent.Namlen)
474 copy(dstDirent.Name[:], srcDirent.Name[:srcDirent.Namlen])
475 copy(buf[dstPos:], (*[unsafe.Sizeof(dstDirent)]byte)(unsafe.Pointer(&dstDirent))[:])
476 padding := buf[dstPos+fixedSize+int(dstDirent.Namlen) : dstPos+reclen]
477 for i := range padding {
481 dstPos += int(dstDirent.Reclen)
482 srcPos += int(srcDirent.Reclen)
488 func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
490 raceReleaseMerge(unsafe.Pointer(&ioSync))
492 return sendfile(outfd, infd, offset, count)
495 //sys ptrace(request int, pid int, addr uintptr, data int) (err error)
497 func PtraceAttach(pid int) (err error) {
498 return ptrace(PTRACE_ATTACH, pid, 0, 0)
501 func PtraceCont(pid int, signal int) (err error) {
502 return ptrace(PTRACE_CONT, pid, 1, signal)
505 func PtraceDetach(pid int) (err error) {
506 return ptrace(PTRACE_DETACH, pid, 1, 0)
509 func PtraceGetFpRegs(pid int, fpregsout *FpReg) (err error) {
510 return ptrace(PTRACE_GETFPREGS, pid, uintptr(unsafe.Pointer(fpregsout)), 0)
513 func PtraceGetRegs(pid int, regsout *Reg) (err error) {
514 return ptrace(PTRACE_GETREGS, pid, uintptr(unsafe.Pointer(regsout)), 0)
517 func PtraceLwpEvents(pid int, enable int) (err error) {
518 return ptrace(PTRACE_LWPEVENTS, pid, 0, enable)
521 func PtraceLwpInfo(pid int, info uintptr) (err error) {
522 return ptrace(PTRACE_LWPINFO, pid, info, int(unsafe.Sizeof(PtraceLwpInfoStruct{})))
525 func PtracePeekData(pid int, addr uintptr, out []byte) (count int, err error) {
526 return PtraceIO(PIOD_READ_D, pid, addr, out, SizeofLong)
529 func PtracePeekText(pid int, addr uintptr, out []byte) (count int, err error) {
530 return PtraceIO(PIOD_READ_I, pid, addr, out, SizeofLong)
533 func PtracePokeData(pid int, addr uintptr, data []byte) (count int, err error) {
534 return PtraceIO(PIOD_WRITE_D, pid, addr, data, SizeofLong)
537 func PtracePokeText(pid int, addr uintptr, data []byte) (count int, err error) {
538 return PtraceIO(PIOD_WRITE_I, pid, addr, data, SizeofLong)
541 func PtraceSetRegs(pid int, regs *Reg) (err error) {
542 return ptrace(PTRACE_SETREGS, pid, uintptr(unsafe.Pointer(regs)), 0)
545 func PtraceSingleStep(pid int) (err error) {
546 return ptrace(PTRACE_SINGLESTEP, pid, 1, 0)
552 //sys Access(path string, mode uint32) (err error)
553 //sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
554 //sys CapEnter() (err error)
555 //sys capRightsGet(version int, fd int, rightsp *CapRights) (err error) = SYS___CAP_RIGHTS_GET
556 //sys capRightsLimit(fd int, rightsp *CapRights) (err error)
557 //sys Chdir(path string) (err error)
558 //sys Chflags(path string, flags int) (err error)
559 //sys Chmod(path string, mode uint32) (err error)
560 //sys Chown(path string, uid int, gid int) (err error)
561 //sys Chroot(path string) (err error)
562 //sys Close(fd int) (err error)
563 //sys Dup(fd int) (nfd int, err error)
564 //sys Dup2(from int, to int) (err error)
566 //sys ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
567 //sys ExtattrSetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
568 //sys ExtattrDeleteFd(fd int, attrnamespace int, attrname string) (err error)
569 //sys ExtattrListFd(fd int, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
570 //sys ExtattrGetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
571 //sys ExtattrSetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
572 //sys ExtattrDeleteFile(file string, attrnamespace int, attrname string) (err error)
573 //sys ExtattrListFile(file string, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
574 //sys ExtattrGetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
575 //sys ExtattrSetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
576 //sys ExtattrDeleteLink(link string, attrnamespace int, attrname string) (err error)
577 //sys ExtattrListLink(link string, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
578 //sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE
579 //sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
580 //sys Fchdir(fd int) (err error)
581 //sys Fchflags(fd int, flags int) (err error)
582 //sys Fchmod(fd int, mode uint32) (err error)
583 //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
584 //sys Fchown(fd int, uid int, gid int) (err error)
585 //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
586 //sys Flock(fd int, how int) (err error)
587 //sys Fpathconf(fd int, name int) (val int, err error)
588 //sys fstat(fd int, stat *stat_freebsd11_t) (err error)
589 //sys fstat_freebsd12(fd int, stat *Stat_t) (err error)
590 //sys fstatat(fd int, path string, stat *stat_freebsd11_t, flags int) (err error)
591 //sys fstatat_freebsd12(fd int, path string, stat *Stat_t, flags int) (err error)
592 //sys fstatfs(fd int, stat *statfs_freebsd11_t) (err error)
593 //sys fstatfs_freebsd12(fd int, stat *Statfs_t) (err error)
594 //sys Fsync(fd int) (err error)
595 //sys Ftruncate(fd int, length int64) (err error)
596 //sys getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error)
597 //sys getdirentries_freebsd12(fd int, buf []byte, basep *uint64) (n int, err error)
598 //sys Getdtablesize() (size int)
599 //sysnb Getegid() (egid int)
600 //sysnb Geteuid() (uid int)
601 //sysnb Getgid() (gid int)
602 //sysnb Getpgid(pid int) (pgid int, err error)
603 //sysnb Getpgrp() (pgrp int)
604 //sysnb Getpid() (pid int)
605 //sysnb Getppid() (ppid int)
606 //sys Getpriority(which int, who int) (prio int, err error)
607 //sysnb Getrlimit(which int, lim *Rlimit) (err error)
608 //sysnb Getrusage(who int, rusage *Rusage) (err error)
609 //sysnb Getsid(pid int) (sid int, err error)
610 //sysnb Gettimeofday(tv *Timeval) (err error)
611 //sysnb Getuid() (uid int)
612 //sys Issetugid() (tainted bool)
613 //sys Kill(pid int, signum syscall.Signal) (err error)
614 //sys Kqueue() (fd int, err error)
615 //sys Lchown(path string, uid int, gid int) (err error)
616 //sys Link(path string, link string) (err error)
617 //sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error)
618 //sys Listen(s int, backlog int) (err error)
619 //sys lstat(path string, stat *stat_freebsd11_t) (err error)
620 //sys Mkdir(path string, mode uint32) (err error)
621 //sys Mkdirat(dirfd int, path string, mode uint32) (err error)
622 //sys Mkfifo(path string, mode uint32) (err error)
623 //sys mknod(path string, mode uint32, dev int) (err error)
624 //sys mknodat(fd int, path string, mode uint32, dev int) (err error)
625 //sys mknodat_freebsd12(fd int, path string, mode uint32, dev uint64) (err error)
626 //sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
627 //sys Open(path string, mode int, perm uint32) (fd int, err error)
628 //sys Openat(fdat int, path string, mode int, perm uint32) (fd int, err error)
629 //sys Pathconf(path string, name int) (val int, err error)
630 //sys Pread(fd int, p []byte, offset int64) (n int, err error)
631 //sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
632 //sys read(fd int, p []byte) (n int, err error)
633 //sys Readlink(path string, buf []byte) (n int, err error)
634 //sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error)
635 //sys Rename(from string, to string) (err error)
636 //sys Renameat(fromfd int, from string, tofd int, to string) (err error)
637 //sys Revoke(path string) (err error)
638 //sys Rmdir(path string) (err error)
639 //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
640 //sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
641 //sysnb Setegid(egid int) (err error)
642 //sysnb Seteuid(euid int) (err error)
643 //sysnb Setgid(gid int) (err error)
644 //sys Setlogin(name string) (err error)
645 //sysnb Setpgid(pid int, pgid int) (err error)
646 //sys Setpriority(which int, who int, prio int) (err error)
647 //sysnb Setregid(rgid int, egid int) (err error)
648 //sysnb Setreuid(ruid int, euid int) (err error)
649 //sysnb Setresgid(rgid int, egid int, sgid int) (err error)
650 //sysnb Setresuid(ruid int, euid int, suid int) (err error)
651 //sysnb Setrlimit(which int, lim *Rlimit) (err error)
652 //sysnb Setsid() (pid int, err error)
653 //sysnb Settimeofday(tp *Timeval) (err error)
654 //sysnb Setuid(uid int) (err error)
655 //sys stat(path string, stat *stat_freebsd11_t) (err error)
656 //sys statfs(path string, stat *statfs_freebsd11_t) (err error)
657 //sys statfs_freebsd12(path string, stat *Statfs_t) (err error)
658 //sys Symlink(path string, link string) (err error)
659 //sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error)
660 //sys Sync() (err error)
661 //sys Truncate(path string, length int64) (err error)
662 //sys Umask(newmask int) (oldmask int)
663 //sys Undelete(path string) (err error)
664 //sys Unlink(path string) (err error)
665 //sys Unlinkat(dirfd int, path string, flags int) (err error)
666 //sys Unmount(path string, flags int) (err error)
667 //sys write(fd int, p []byte) (n int, err error)
668 //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
669 //sys munmap(addr uintptr, length uintptr) (err error)
670 //sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
671 //sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
672 //sys accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error)
673 //sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)
708 // Kqueue_from_portset_np
768 // Shared_region_check_np
769 // Shared_region_map_np
770 // __pthread_mutex_destroy
771 // __pthread_mutex_init
772 // __pthread_mutex_lock
773 // __pthread_mutex_trylock
774 // __pthread_mutex_unlock
775 // __pthread_cond_init
776 // __pthread_cond_destroy
777 // __pthread_cond_broadcast
778 // __pthread_cond_signal
780 // __pthread_cond_timedwait
789 // __pthread_cond_wait
794 // __disable_threadsignal
795 // __pthread_markcancel
796 // __pthread_canceled
814 // Bsdthread_terminate
816 // Bsdthread_register
847 // Sigsuspend_nocancel
858 // Aio_suspend_nocancel
859 // __sigwait_nocancel
860 // __semwait_signal_nocancel