| // Copyright 2018 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // Aix system calls. |
| // This file is compiled as ordinary Go code, |
| // but it is also input to mksyscall, |
| // which parses the //sys lines and generates system call stubs. |
| // Note that sometimes we use a lowercase //sys name and |
| // wrap it in our own nicer implementation. |
| |
| package syscall |
| |
| import ( |
| "unsafe" |
| ) |
| |
| func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno) |
| func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno) |
| func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno) |
| func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno) |
| |
| // Implemented in runtime/syscall_aix.go. |
| func rawSyscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno) |
| func syscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno) |
| |
| // Constant expected by package but not supported |
| const ( |
| _ = iota |
| TIOCSCTTY |
| SYS_EXECVE |
| SYS_FCNTL |
| ) |
| |
| const ( |
| F_DUPFD_CLOEXEC = 0 |
| // AF_LOCAL doesn't exist on AIX |
| AF_LOCAL = AF_UNIX |
| |
| _F_DUP2FD_CLOEXEC = 0 |
| ) |
| |
| func (ts *StTimespec_t) Unix() (sec int64, nsec int64) { |
| return int64(ts.Sec), int64(ts.Nsec) |
| } |
| |
| func (ts *StTimespec_t) Nano() int64 { |
| return int64(ts.Sec)*1e9 + int64(ts.Nsec) |
| } |
| |
| /* |
| * Wrapped |
| */ |
| |
| func Access(path string, mode uint32) (err error) { |
| return Faccessat(_AT_FDCWD, path, mode, 0) |
| } |
| |
| // fcntl must never be called with cmd=F_DUP2FD because it doesn't work on AIX |
| // There is no way to create a custom fcntl and to keep //sys fcntl easily, |
| // because we need fcntl name for its libc symbol. This is linked with the script. |
| // But, as fcntl is currently not exported and isn't called with F_DUP2FD, |
| // it doesn't matter. |
| //sys fcntl(fd int, cmd int, arg int) (val int, err error) |
| //sys Dup2(old int, new int) (err error) |
| |
| //sysnb pipe(p *[2]_C_int) (err error) |
| |
| func Pipe(p []int) (err error) { |
| if len(p) != 2 { |
| return EINVAL |
| } |
| var pp [2]_C_int |
| err = pipe(&pp) |
| if err == nil { |
| p[0] = int(pp[0]) |
| p[1] = int(pp[1]) |
| } |
| return |
| } |
| |
| //sys readlink(path string, buf []byte, bufSize uint64) (n int, err error) |
| |
| func Readlink(path string, buf []byte) (n int, err error) { |
| s := uint64(len(buf)) |
| return readlink(path, buf, s) |
| } |
| |
| //sys utimes(path string, times *[2]Timeval) (err error) |
| |
| func Utimes(path string, tv []Timeval) error { |
| if len(tv) != 2 { |
| return EINVAL |
| } |
| return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0]))) |
| } |
| |
| //sys utimensat(dirfd int, path string, times *[2]Timespec, flag int) (err error) |
| |
| func UtimesNano(path string, ts []Timespec) error { |
| if len(ts) != 2 { |
| return EINVAL |
| } |
| return utimensat(_AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) |
| } |
| |
| //sys unlinkat(dirfd int, path string, flags int) (err error) |
| |
| func Unlinkat(dirfd int, path string) (err error) { |
| return unlinkat(dirfd, path, 0) |
| } |
| |
| //sys getcwd(buf *byte, size uint64) (err error) |
| |
| const ImplementsGetwd = true |
| |
| func Getwd() (ret string, err error) { |
| for len := uint64(4096); ; len *= 2 { |
| b := make([]byte, len) |
| err := getcwd(&b[0], len) |
| if err == nil { |
| i := 0 |
| for b[i] != 0 { |
| i++ |
| } |
| return string(b[0:i]), nil |
| } |
| if err != ERANGE { |
| return "", err |
| } |
| } |
| } |
| |
| func Getcwd(buf []byte) (n int, err error) { |
| err = getcwd(&buf[0], uint64(len(buf))) |
| if err == nil { |
| i := 0 |
| for buf[i] != 0 { |
| i++ |
| } |
| n = i + 1 |
| } |
| return |
| } |
| |
| //sysnb getgroups(ngid int, gid *_Gid_t) (n int, err error) |
| //sysnb setgroups(ngid int, gid *_Gid_t) (err error) |
| |
| func Getgroups() (gids []int, err error) { |
| n, err := getgroups(0, nil) |
| if err != nil { |
| return nil, err |
| } |
| if n == 0 { |
| return nil, nil |
| } |
| |
| // Sanity check group count. Max is 16 on BSD. |
| if n < 0 || n > 1000 { |
| return nil, EINVAL |
| } |
| |
| a := make([]_Gid_t, n) |
| n, err = getgroups(n, &a[0]) |
| if err != nil { |
| return nil, err |
| } |
| gids = make([]int, n) |
| for i, v := range a[0:n] { |
| gids[i] = int(v) |
| } |
| return |
| } |
| |
| func Setgroups(gids []int) (err error) { |
| if len(gids) == 0 { |
| return setgroups(0, nil) |
| } |
| |
| a := make([]_Gid_t, len(gids)) |
| for i, v := range gids { |
| a[i] = _Gid_t(v) |
| } |
| return setgroups(len(a), &a[0]) |
| } |
| |
| func direntIno(buf []byte) (uint64, bool) { |
| return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino)) |
| } |
| |
| func direntReclen(buf []byte) (uint64, bool) { |
| return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) |
| } |
| |
| func direntNamlen(buf []byte) (uint64, bool) { |
| reclen, ok := direntReclen(buf) |
| if !ok { |
| return 0, false |
| } |
| return reclen - uint64(unsafe.Offsetof(Dirent{}.Name)), true |
| } |
| |
| func Gettimeofday(tv *Timeval) (err error) { |
| err = gettimeofday(tv, nil) |
| return |
| } |
| |
| // TODO |
| func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { |
| return -1, ENOSYS |
| } |
| |
| //sys getdirent(fd int, buf []byte) (n int, err error) |
| |
| func ReadDirent(fd int, buf []byte) (n int, err error) { |
| return getdirent(fd, buf) |
| } |
| |
| //sys wait4(pid _Pid_t, status *_C_int, options int, rusage *Rusage) (wpid _Pid_t, err error) |
| |
| func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) { |
| var status _C_int |
| var r _Pid_t |
| err = ERESTART |
| // AIX wait4 may return with ERESTART errno, while the processus is still |
| // active. |
| for err == ERESTART { |
| r, err = wait4(_Pid_t(pid), &status, options, rusage) |
| } |
| wpid = int(r) |
| if wstatus != nil { |
| *wstatus = WaitStatus(status) |
| } |
| return |
| } |
| |
| //sys fsyncRange(fd int, how int, start int64, length int64) (err error) = fsync_range |
| |
| func Fsync(fd int) error { |
| return fsyncRange(fd, O_SYNC, 0, 0) |
| } |
| |
| /* |
| * Socket |
| */ |
| //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) |
| //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) |
| //sys Getkerninfo(op int32, where uintptr, size uintptr, arg int64) (i int32, err error) |
| //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) |
| //sys Listen(s int, backlog int) (err error) |
| //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) |
| //sys socket(domain int, typ int, proto int) (fd int, err error) |
| //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) |
| //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) |
| //sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) |
| //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) |
| //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) |
| //sys Shutdown(s int, how int) (err error) |
| |
| // In order to use msghdr structure with Control, Controllen in golang.org/x/net, |
| // nrecvmsg and nsendmsg must be used. |
| //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = nrecvmsg |
| //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = nsendmsg |
| |
| func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) { |
| if sa.Port < 0 || sa.Port > 0xFFFF { |
| return nil, 0, EINVAL |
| } |
| sa.raw.Family = AF_INET |
| p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) |
| p[0] = byte(sa.Port >> 8) |
| p[1] = byte(sa.Port) |
| sa.raw.Addr = sa.Addr |
| return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil |
| } |
| |
| func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) { |
| if sa.Port < 0 || sa.Port > 0xFFFF { |
| return nil, 0, EINVAL |
| } |
| sa.raw.Family = AF_INET6 |
| p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) |
| p[0] = byte(sa.Port >> 8) |
| p[1] = byte(sa.Port) |
| sa.raw.Scope_id = sa.ZoneId |
| sa.raw.Addr = sa.Addr |
| return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil |
| } |
| |
| func (sa *RawSockaddrUnix) setLen(n int) { |
| sa.Len = uint8(3 + n) // 2 for Family, Len; 1 for NUL. |
| } |
| |
| func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) { |
| name := sa.Name |
| n := len(name) |
| if n > len(sa.raw.Path) { |
| return nil, 0, EINVAL |
| } |
| sa.raw.Family = AF_UNIX |
| sa.raw.setLen(n) |
| for i := 0; i < n; i++ { |
| sa.raw.Path[i] = uint8(name[i]) |
| } |
| // length is family (uint16), name, NUL. |
| sl := _Socklen(2) |
| if n > 0 { |
| sl += _Socklen(n) + 1 |
| } |
| |
| return unsafe.Pointer(&sa.raw), sl, nil |
| } |
| |
| func Getsockname(fd int) (sa Sockaddr, err error) { |
| var rsa RawSockaddrAny |
| var len _Socklen = SizeofSockaddrAny |
| if err = getsockname(fd, &rsa, &len); err != nil { |
| return |
| } |
| return anyToSockaddr(&rsa) |
| } |
| |
| //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) |
| |
| func Accept(fd int) (nfd int, sa Sockaddr, err error) { |
| var rsa RawSockaddrAny |
| var len _Socklen = SizeofSockaddrAny |
| nfd, err = accept(fd, &rsa, &len) |
| if err != nil { |
| return |
| } |
| sa, err = anyToSockaddr(&rsa) |
| if err != nil { |
| Close(nfd) |
| nfd = 0 |
| } |
| return |
| } |
| |
| func recvmsgRaw(fd int, p, oob []byte, flags int, rsa *RawSockaddrAny) (n, oobn int, recvflags int, err error) { |
| var msg Msghdr |
| msg.Name = (*byte)(unsafe.Pointer(rsa)) |
| msg.Namelen = uint32(SizeofSockaddrAny) |
| var iov Iovec |
| if len(p) > 0 { |
| iov.Base = &p[0] |
| iov.SetLen(len(p)) |
| } |
| var dummy byte |
| if len(oob) > 0 { |
| var sockType int |
| sockType, err = GetsockoptInt(fd, SOL_SOCKET, SO_TYPE) |
| if err != nil { |
| return |
| } |
| // receive at least one normal byte |
| if sockType != SOCK_DGRAM && len(p) == 0 { |
| iov.Base = &dummy |
| iov.SetLen(1) |
| } |
| msg.Control = &oob[0] |
| msg.SetControllen(len(oob)) |
| } |
| msg.Iov = &iov |
| msg.Iovlen = 1 |
| if n, err = recvmsg(fd, &msg, flags); err != nil { |
| return |
| } |
| oobn = int(msg.Controllen) |
| recvflags = int(msg.Flags) |
| return |
| } |
| |
| func sendmsgN(fd int, p, oob []byte, ptr unsafe.Pointer, salen _Socklen, flags int) (n int, err error) { |
| var msg Msghdr |
| msg.Name = (*byte)(ptr) |
| msg.Namelen = uint32(salen) |
| var iov Iovec |
| if len(p) > 0 { |
| iov.Base = &p[0] |
| iov.SetLen(len(p)) |
| } |
| var dummy byte |
| if len(oob) > 0 { |
| var sockType int |
| sockType, err = GetsockoptInt(fd, SOL_SOCKET, SO_TYPE) |
| if err != nil { |
| return 0, err |
| } |
| // send at least one normal byte |
| if sockType != SOCK_DGRAM && len(p) == 0 { |
| iov.Base = &dummy |
| iov.SetLen(1) |
| } |
| msg.Control = &oob[0] |
| msg.SetControllen(len(oob)) |
| } |
| msg.Iov = &iov |
| msg.Iovlen = 1 |
| if n, err = sendmsg(fd, &msg, flags); err != nil { |
| return 0, err |
| } |
| if len(oob) > 0 && len(p) == 0 { |
| n = 0 |
| } |
| return n, nil |
| } |
| |
| func (sa *RawSockaddrUnix) getLen() (int, error) { |
| // Some versions of AIX have a bug in getsockname (see IV78655). |
| // We can't rely on sa.Len being set correctly. |
| n := SizeofSockaddrUnix - 3 // subtract leading Family, Len, terminating NUL. |
| for i := 0; i < n; i++ { |
| if sa.Path[i] == 0 { |
| n = i |
| break |
| } |
| } |
| return n, nil |
| } |
| |
| func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, error) { |
| switch rsa.Addr.Family { |
| case AF_UNIX: |
| pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa)) |
| sa := new(SockaddrUnix) |
| n, err := pp.getLen() |
| if err != nil { |
| return nil, err |
| } |
| bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0])) |
| sa.Name = string(bytes[0:n]) |
| return sa, nil |
| |
| case AF_INET: |
| pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa)) |
| sa := new(SockaddrInet4) |
| p := (*[2]byte)(unsafe.Pointer(&pp.Port)) |
| sa.Port = int(p[0])<<8 + int(p[1]) |
| sa.Addr = pp.Addr |
| return sa, nil |
| |
| case AF_INET6: |
| pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa)) |
| sa := new(SockaddrInet6) |
| p := (*[2]byte)(unsafe.Pointer(&pp.Port)) |
| sa.Port = int(p[0])<<8 + int(p[1]) |
| sa.Addr = pp.Addr |
| return sa, nil |
| } |
| return nil, EAFNOSUPPORT |
| } |
| |
| type SockaddrDatalink struct { |
| Len uint8 |
| Family uint8 |
| Index uint16 |
| Type uint8 |
| Nlen uint8 |
| Alen uint8 |
| Slen uint8 |
| Data [120]uint8 |
| raw RawSockaddrDatalink |
| } |
| |
| /* |
| * Wait |
| */ |
| |
| type WaitStatus uint32 |
| |
| func (w WaitStatus) Stopped() bool { return w&0x40 != 0 } |
| func (w WaitStatus) StopSignal() Signal { |
| if !w.Stopped() { |
| return -1 |
| } |
| return Signal(w>>8) & 0xFF |
| } |
| |
| func (w WaitStatus) Exited() bool { return w&0xFF == 0 } |
| func (w WaitStatus) ExitStatus() int { |
| if !w.Exited() { |
| return -1 |
| } |
| return int((w >> 8) & 0xFF) |
| } |
| |
| func (w WaitStatus) Signaled() bool { return w&0x40 == 0 && w&0xFF != 0 } |
| func (w WaitStatus) Signal() Signal { |
| if !w.Signaled() { |
| return -1 |
| } |
| return Signal(w>>16) & 0xFF |
| } |
| |
| func (w WaitStatus) Continued() bool { return w&0x01000000 != 0 } |
| |
| func (w WaitStatus) CoreDump() bool { return w&0x80 == 0x80 } |
| |
| func (w WaitStatus) TrapCause() int { return -1 } |
| |
| /* |
| * ptrace |
| */ |
| |
| //sys Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error) |
| //sys ptrace64(request int, id int64, addr int64, data int, buff uintptr) (err error) |
| |
| func raw_ptrace(request int, pid int, addr *byte, data *byte) Errno { |
| if request == PTRACE_TRACEME { |
| // Convert to AIX ptrace call. |
| err := ptrace64(PT_TRACE_ME, 0, 0, 0, 0) |
| if err != nil { |
| return err.(Errno) |
| } |
| return 0 |
| } |
| return ENOSYS |
| } |
| |
| func ptracePeek(pid int, addr uintptr, out []byte) (count int, err error) { |
| n := 0 |
| for len(out) > 0 { |
| bsize := len(out) |
| if bsize > 1024 { |
| bsize = 1024 |
| } |
| err = ptrace64(PT_READ_BLOCK, int64(pid), int64(addr), bsize, uintptr(unsafe.Pointer(&out[0]))) |
| if err != nil { |
| return 0, err |
| } |
| addr += uintptr(bsize) |
| n += bsize |
| out = out[n:] |
| } |
| return n, nil |
| } |
| |
| func PtracePeekText(pid int, addr uintptr, out []byte) (count int, err error) { |
| return ptracePeek(pid, addr, out) |
| } |
| |
| func PtracePeekData(pid int, addr uintptr, out []byte) (count int, err error) { |
| return ptracePeek(pid, addr, out) |
| } |
| |
| func ptracePoke(pid int, addr uintptr, data []byte) (count int, err error) { |
| n := 0 |
| for len(data) > 0 { |
| bsize := len(data) |
| if bsize > 1024 { |
| bsize = 1024 |
| } |
| err = ptrace64(PT_WRITE_BLOCK, int64(pid), int64(addr), bsize, uintptr(unsafe.Pointer(&data[0]))) |
| if err != nil { |
| return 0, err |
| } |
| addr += uintptr(bsize) |
| n += bsize |
| data = data[n:] |
| } |
| return n, nil |
| } |
| |
| func PtracePokeText(pid int, addr uintptr, data []byte) (count int, err error) { |
| return ptracePoke(pid, addr, data) |
| } |
| |
| func PtracePokeData(pid int, addr uintptr, data []byte) (count int, err error) { |
| return ptracePoke(pid, addr, data) |
| } |
| |
| func PtraceCont(pid int, signal int) (err error) { |
| return ptrace64(PT_CONTINUE, int64(pid), 1, signal, 0) |
| } |
| |
| func PtraceSingleStep(pid int) (err error) { return ptrace64(PT_STEP, int64(pid), 1, 0, 0) } |
| |
| func PtraceAttach(pid int) (err error) { return ptrace64(PT_ATTACH, int64(pid), 0, 0, 0) } |
| |
| func PtraceDetach(pid int) (err error) { return ptrace64(PT_DETACH, int64(pid), 0, 0, 0) } |
| |
| /* |
| * Direct access |
| */ |
| |
| //sys Acct(path string) (err error) |
| //sys Chdir(path string) (err error) |
| //sys Chmod(path string, mode uint32) (err error) |
| //sys Chown(path string, uid int, gid int) (err error) |
| //sys Chroot(path string) (err error) |
| //sys Close(fd int) (err error) |
| //sys Dup(fd int) (nfd int, err error) |
| //sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) |
| //sys Fchdir(fd int) (err error) |
| //sys Fchmod(fd int, mode uint32) (err error) |
| //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) |
| //sys Fchown(fd int, uid int, gid int) (err error) |
| //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) |
| //sys Fpathconf(fd int, name int) (val int, err error) |
| //sys Fstat(fd int, stat *Stat_t) (err error) |
| //sys Fstatfs(fd int, buf *Statfs_t) (err error) |
| //sys Ftruncate(fd int, length int64) (err error) |
| //sysnb Getgid() (gid int) |
| //sysnb Getpid() (pid int) |
| //sys Geteuid() (euid int) |
| //sys Getegid() (egid int) |
| //sys Getppid() (ppid int) |
| //sys Getpriority(which int, who int) (n int, err error) |
| //sysnb Getrlimit(which int, lim *Rlimit) (err error) |
| //sysnb Getrusage(who int, rusage *Rusage) (err error) |
| //sysnb Getuid() (uid int) |
| //sys Kill(pid int, signum Signal) (err error) |
| //sys Lchown(path string, uid int, gid int) (err error) |
| //sys Link(path string, link string) (err error) |
| //sys Lstat(path string, stat *Stat_t) (err error) |
| //sys Mkdir(path string, mode uint32) (err error) |
| //sys Mkdirat(dirfd int, path string, mode uint32) (err error) |
| //sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) |
| //sys Open(path string, mode int, perm uint32) (fd int, err error) |
| //sys pread(fd int, p []byte, offset int64) (n int, err error) |
| //sys pwrite(fd int, p []byte, offset int64) (n int, err error) |
| //sys read(fd int, p []byte) (n int, err error) |
| //sys Reboot(how int) (err error) |
| //sys Rename(from string, to string) (err error) |
| //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) |
| //sys Rmdir(path string) (err error) |
| //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = lseek |
| //sysnb Setegid(egid int) (err error) |
| //sysnb Seteuid(euid int) (err error) |
| //sysnb Setgid(gid int) (err error) |
| //sysnb Setpgid(pid int, pgid int) (err error) |
| //sys Setpriority(which int, who int, prio int) (err error) |
| //sysnb Setregid(rgid int, egid int) (err error) |
| //sysnb Setreuid(ruid int, euid int) (err error) |
| //sysnb setrlimit(which int, lim *Rlimit) (err error) |
| //sys Stat(path string, stat *Stat_t) (err error) |
| //sys Statfs(path string, buf *Statfs_t) (err error) |
| //sys Symlink(path string, link string) (err error) |
| //sys Truncate(path string, length int64) (err error) |
| //sys Umask(newmask int) (oldmask int) |
| //sys Unlink(path string) (err error) |
| //sysnb Uname(buf *Utsname) (err error) |
| //sys write(fd int, p []byte) (n int, err error) |
| //sys writev(fd int, iovecs []Iovec) (n uintptr, err error) |
| |
| //sys gettimeofday(tv *Timeval, tzp *Timezone) (err error) |
| |
| func setTimespec(sec, nsec int64) Timespec { |
| return Timespec{Sec: sec, Nsec: nsec} |
| } |
| |
| func setTimeval(sec, usec int64) Timeval { |
| return Timeval{Sec: sec, Usec: int32(usec)} |
| } |
| |
| func readlen(fd int, buf *byte, nbuf int) (n int, err error) { |
| r0, _, e1 := syscall6(uintptr(unsafe.Pointer(&libc_read)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0) |
| n = int(r0) |
| if e1 != 0 { |
| err = e1 |
| } |
| return |
| } |
| |
| /* |
| * Map |
| */ |
| |
| var mapper = &mmapper{ |
| active: make(map[*byte][]byte), |
| mmap: mmap, |
| munmap: munmap, |
| } |
| |
| //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) |
| //sys munmap(addr uintptr, length uintptr) (err error) |
| |
| func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) { |
| return mapper.Mmap(fd, offset, length, prot, flags) |
| } |
| |
| func Munmap(b []byte) (err error) { |
| return mapper.Munmap(b) |
| } |