new syscall package: manually maintained files and scripts.
auto-generated files and deletions are in another CL.
goals for new syscall:
* automate as much as possible
* do not let clients do unsafe things
* use simple types (int not int64)
* fewer files
the files are renamed from foo_amd64_linux to foo_linux_amd64,
both because it reads better (all the linux are related, all the amd64 less so)
and because it made it easier to replace the existing ones.
R=r
DELTA=2336 (2260 added, 6 deleted, 70 changed)
OCL=29709
CL=29723
diff --git a/src/lib/syscall/syscall_darwin.go b/src/lib/syscall/syscall_darwin.go
new file mode 100644
index 0000000..6909d07
--- /dev/null
+++ b/src/lib/syscall/syscall_darwin.go
@@ -0,0 +1,674 @@
+// Copyright 2009 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.
+
+// Darwin 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 (
+ "syscall";
+ "unsafe";
+)
+
+const OS = "darwin"
+
+/*
+ * Pseudo-system calls
+ */
+// The const provides a compile-time constant so clients
+// can adjust to whether there is a working Getwd and avoid
+// even linking this function into the binary. See ../os/getwd.go.
+const ImplementsGetwd = false
+
+func Getwd() (string, int) {
+ return "", ENOTSUP;
+}
+
+
+/*
+ * Wrapped
+ */
+
+//sys getgroups(ngid int, gid *_Gid_t) (n int, errno int)
+//sys setgroups(ngid int, gid *_Gid_t) (errno int)
+
+func Getgroups() (gids []int, errno int) {
+ n, err := getgroups(0, nil);
+ if err != 0 {
+ return nil, errno;
+ }
+ if n == 0 {
+ return nil, 0;
+ }
+
+ // 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 != 0 {
+ return nil, errno;
+ }
+ gids = make([]int, n);
+ for i, v := range a[0:n] {
+ gids[i] = int(v);
+ }
+ return;
+}
+
+func Setgroups(gids []int) (errno int) {
+ 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]);
+}
+
+// Wait status is 7 bits at bottom, either 0 (exited),
+// 0x7F (stopped), or a signal number that caused an exit.
+// The 0x80 bit is whether there was a core dump.
+// An extra number (exit code, signal causing a stop)
+// is in the high bits.
+
+type WaitStatus uint32
+
+const (
+ mask = 0x7F;
+ core = 0x80;
+ shift = 8;
+
+ exited = 0;
+ stopped = 0x7F;
+)
+
+func (w WaitStatus) Exited() bool {
+ return w&mask == exited;
+}
+
+func (w WaitStatus) ExitStatus() int {
+ if w&mask != exited {
+ return -1;
+ }
+ return int(w >> shift);
+}
+
+func (w WaitStatus) Signaled() bool {
+ return w&mask != stopped && w&mask != 0;
+}
+
+func (w WaitStatus) Signal() int {
+ sig := int(w & mask);
+ if sig == stopped || sig == 0 {
+ return -1;
+ }
+ return sig;
+}
+
+func (w WaitStatus) CoreDump() bool {
+ return w.Signaled() && w&core != 0;
+}
+
+func (w WaitStatus) Stopped() bool {
+ return w&mask == stopped && w>>shift != SIGSTOP;
+}
+
+func (w WaitStatus) Continued() bool {
+ return w&mask == stopped && w>>shift == SIGSTOP;
+}
+
+func (w WaitStatus) StopSignal() int {
+ if !w.Stopped() {
+ return -1;
+ }
+ return int(w >> shift) & 0xFF;
+}
+
+//sys wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, errno int)
+func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, errno int) {
+ var status _C_int;
+ wpid, errno = wait4(pid, &status, options, rusage);
+ if wstatus != nil {
+ *wstatus = WaitStatus(status);
+ }
+ return;
+}
+
+//sys pipe() (r int, w int, errno int)
+func Pipe(p []int) (errno int) {
+ if len(p) != 2 {
+ return EINVAL;
+ }
+ p[0], p[1], errno = pipe();
+ return;
+}
+
+// TODO(rsc): How does 386 return an int64 newoffset?
+//sys lseek(fd int, offset int64, whence int) (newoffset uintptr, errno int)
+func Seek(fd int, offset int64, whence int) (newoffset int64, errno int) {
+ n, e := lseek(fd, offset, whence);
+ return int64(n), e;
+}
+
+//sys gettimeofday(tp *Timeval) (sec int64, usec int32, errno int)
+func Gettimeofday(tv *Timeval) (errno int) {
+ // The tv passed to gettimeofday must be non-nil
+ // but is otherwise unused. The answers come back
+ // in the two registers.
+ sec, usec, err := gettimeofday(tv);
+ tv.Sec = sec;
+ tv.Usec = usec;
+ return err;
+}
+
+func Sleep(ns int64) (errno int) {
+ tv := NsecToTimeval(ns);
+ return Select(0, nil, nil, nil, &tv);
+}
+
+//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, errno int)
+//sys bind(s int, addr uintptr, addrlen _Socklen) (errno int)
+//sys connect(s int, addr uintptr, addrlen _Socklen) (errno int)
+//sys socket(domain int, typ int, proto int) (fd int, errno int)
+//sys setsockopt(s int, level int, name int, val uintptr, vallen int) (errno int)
+
+// For testing: clients can set this flag to force
+// creation of IPv6 sockets to return EAFNOSUPPORT.
+var SocketDisableIPv6 bool
+
+type Sockaddr interface {
+ sockaddr() (ptr uintptr, len _Socklen, errno int); // lowercase; only we can define Sockaddrs
+}
+
+type SockaddrInet4 struct {
+ Port int;
+ Addr [4]byte;
+ raw RawSockaddrInet4;
+}
+
+func (sa *SockaddrInet4) sockaddr() (uintptr, _Socklen, int) {
+ if sa.Port < 0 || sa.Port > 0xFFFF {
+ return 0, 0, EINVAL;
+ }
+ sa.raw.Len = SizeofSockaddrInet4;
+ sa.raw.Family = AF_INET;
+ p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port));
+ p[0] = byte(sa.Port>>8);
+ p[1] = byte(sa.Port);
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.raw.Addr[i] = sa.Addr[i];
+ }
+ return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0;
+}
+
+type SockaddrInet6 struct {
+ Port int;
+ Addr [16]byte;
+ raw RawSockaddrInet6;
+}
+
+func (sa *SockaddrInet6) sockaddr() (uintptr, _Socklen, int) {
+ if sa.Port < 0 || sa.Port > 0xFFFF {
+ return 0, 0, EINVAL;
+ }
+ sa.raw.Len = SizeofSockaddrInet6;
+ sa.raw.Family = AF_INET6;
+ p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port));
+ p[0] = byte(sa.Port>>8);
+ p[1] = byte(sa.Port);
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.raw.Addr[i] = sa.Addr[i];
+ }
+ return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0;
+}
+
+type SockaddrUnix struct {
+ Name string;
+ raw RawSockaddrUnix;
+}
+
+func (sa *SockaddrUnix) sockaddr() (uintptr, _Socklen, int) {
+ name := sa.Name;
+ n := len(name);
+ if n >= len(sa.raw.Path) || n == 0 {
+ return 0, 0, EINVAL;
+ }
+ sa.raw.Len = byte(3 + n); // 2 for Family, Len; 1 for NUL
+ sa.raw.Family = AF_UNIX;
+ for i := 0; i < n; i++ {
+ sa.raw.Path[i] = int8(name[i]);
+ }
+ return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0;
+}
+
+func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, int) {
+ switch rsa.Addr.Family {
+ case AF_UNIX:
+ pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa));
+ if pp.Len < 3 || pp.Len > SizeofSockaddrUnix {
+ return nil, EINVAL
+ }
+ sa := new(SockaddrUnix);
+ n := int(pp.Len) - 3; // subtract leading Family, Len, terminating NUL
+ for i := 0; i < n; i++ {
+ if pp.Path[i] == 0 {
+ // found early NUL; assume Len is overestimating
+ n = i;
+ break;
+ }
+ }
+ bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]));
+ sa.Name = string(bytes[0:n]);
+ return sa, 0;
+
+ 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]);
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.Addr[i] = pp.Addr[i];
+ }
+ return sa, 0;
+
+ 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]);
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.Addr[i] = pp.Addr[i];
+ }
+ return sa, 0;
+ }
+ return nil, EAFNOSUPPORT;
+}
+
+func Accept(fd int) (nfd int, sa Sockaddr, errno int) {
+ var rsa RawSockaddrAny;
+ var len _Socklen = SizeofSockaddrAny;
+ nfd, errno = accept(fd, &rsa, &len);
+ if errno != 0 {
+ return;
+ }
+ sa, errno = anyToSockaddr(&rsa);
+ if errno != 0 {
+ Close(nfd);
+ nfd = 0;
+ }
+ return;
+}
+
+func Bind(fd int, sa Sockaddr) (errno int) {
+ ptr, n, err := sa.sockaddr();
+ if err != 0 {
+ return err;
+ }
+ return bind(fd, ptr, n);
+}
+
+func Connect(fd int, sa Sockaddr) (errno int) {
+ ptr, n, err := sa.sockaddr();
+ if err != 0 {
+ return err;
+ }
+ return connect(fd, ptr, n);
+}
+
+func Socket(domain, typ, proto int) (fd, errno int) {
+ if domain == AF_INET6 && SocketDisableIPv6 {
+ return -1, EAFNOSUPPORT
+ }
+ fd, errno = socket(domain, typ, proto);
+ return;
+}
+
+func SetsockoptInt(fd, level, opt int, value int) (errno int) {
+ var n = int32(value);
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), 4);
+}
+
+func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (errno int) {
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(tv)), unsafe.Sizeof(*tv));
+}
+
+func SetsockoptLinger(fd, level, opt int, l *Linger) (errno int) {
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(l)), unsafe.Sizeof(*l));
+}
+
+//sys kevent(kq int, change uintptr, nchange int, event uintptr, nevent int, timeout *Timespec) (n int, errno int)
+func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, errno int) {
+ var change, event uintptr;
+ if len(changes) > 0 {
+ change = uintptr(unsafe.Pointer(&changes[0]));
+ }
+ if len(events) > 0 {
+ event = uintptr(unsafe.Pointer(&events[0]));
+ }
+ return kevent(kq, change, len(changes), event, len(events), timeout);
+}
+
+// TODO: wrap
+// Acct(name nil-string) (errno int)
+// Futimes(fd int, timeval *Timeval) (errno int) // Pointer to 2 timevals!
+// Gethostuuid(uuid *byte, timeout *Timespec) (errno int)
+// Getpeername(fd int, addr *Sockaddr, addrlen *int) (errno int)
+// Getsockname(fd int, addr *Sockaddr, addrlen *int) (errno int)
+// Getsockopt(s int, level int, name int, val *byte, vallen *int) (errno int)
+// Madvise(addr *byte, len int, behav int) (errno int)
+// Mprotect(addr *byte, len int, prot int) (errno int)
+// Msync(addr *byte, len int, flags int) (errno int)
+// Munmap(addr *byte, len int) (errno int)
+// Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, errno int)
+// Recvfrom(s int, buf *byte, nbuf int, flags int, from *Sockaddr, fromlen *int) (n int, errno int)
+// Recvmsg(s int, msg *Msghdr, flags int) (n int, errno int)
+// Sendmsg(s int, msg *Msghdr, flags int) (n int, errno int)
+// Sendto(s int, buf *byte, nbuf int, flags int, to *Sockaddr, addrlen int) (errno int)
+// Utimes(path string, timeval *Timeval) (errno int) // Pointer to 2 timevals!
+//sys fcntl(fd int, cmd int, arg int) (val int, errno int)
+
+
+/*
+ * Exposed directly
+ */
+//sys Access(path string, flags int) (errno int)
+//sys Adjtime(delta *Timeval, olddelta *Timeval) (errno int)
+//sys Chdir(path string) (errno int)
+//sys Chflags(path string, flags int) (errno int)
+//sys Chmod(path string, mode int) (errno int)
+//sys Chown(path string, uid int, gid int) (errno int)
+//sys Chroot(path string) (errno int)
+//sys Close(fd int) (errno int)
+//sys Dup(fd int) (nfd int, errno int)
+//sys Dup2(from int, to int) (errno int)
+//sys Exchangedata(path1 string, path2 string, options int) (errno int)
+//sys Exit(code int)
+//sys Fchdir(fd int) (errno int)
+//sys Fchflags(path string, flags int) (errno int)
+//sys Fchmod(fd int, mode int) (errno int)
+//sys Fchown(fd int, uid int, gid int) (errno int)
+//sys Flock(fd int, how int) (errno int)
+//sys Fpathconf(fd int, name int) (val int, errno int)
+//sys Fstat(fd int, stat *Stat_t) (errno int) = SYS_FSTAT64
+//sys Fstatfs(fd int, stat *Statfs_t) (errno int) = SYS_FSTATFS64
+//sys Fsync(fd int) (errno int)
+//sys Ftruncate(fd int, length int64) (errno int)
+//sys Getdirentries(fd int, buf []byte, basep *uintptr) (n int, errno int) = SYS_GETDIRENTRIES64
+//sys Getdtablesize() (size int)
+//sys Getegid() (egid int)
+//sys Geteuid() (uid int)
+//sys Getfsstat(buf []Statfs_t, flags int) (n int, errno int) = SYS_GETFSSTAT64
+//sys Getgid() (gid int)
+//sys Getpgid(pid int) (pgid int, errno int)
+//sys Getpgrp() (pgrp int)
+//sys Getpid() (pid int)
+//sys Getppid() (ppid int)
+//sys Getpriority(which int, who int) (prio int, errno int)
+//sys Getrlimit(which int, lim *Rlimit) (errno int)
+//sys Getrusage(who int, rusage *Rusage) (errno int)
+//sys Getsid(pid int) (sid int, errno int)
+//sys Getuid() (uid int)
+//sys Issetugid() (tainted bool)
+//sys Kill(pid int, signum int, posix int) (errno int)
+//sys Kqueue() (fd int, errno int)
+//sys Lchown(path string, uid int, gid int) (errno int)
+//sys Link(path string, link string) (errno int)
+//sys Listen(s int, backlog int) (errno int)
+//sys Lstat(path string, stat *Stat_t) (errno int) = SYS_LSTAT64
+//sys Mkdir(path string, mode int) (errno int)
+//sys Mkfifo(path string, mode int) (errno int)
+//sys Mknod(path string, mode int, dev int) (errno int)
+//sys Open(path string, mode int, perm int) (fd int, errno int)
+//sys Pathconf(path string, name int) (val int, errno int)
+//sys Pread(fd int, p []byte, offset int64) (n int, errno int)
+//sys Pwrite(fd int, p []byte, offset int64) (n int, errno int)
+//sys Read(fd int, p []byte) (n int, errno int)
+//sys Readlink(path string, buf []byte) (n int, errno int)
+//sys Rename(from string, to string) (errno int)
+//sys Revoke(path string) (errno int)
+//sys Rmdir(path string) (errno int)
+//sys Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (errno int)
+//sys Setegid(egid int) (errno int)
+//sys Seteuid(euid int) (errno int)
+//sys Setgid(gid int) (errno int)
+//sys Setlogin(name string) (errno int)
+//sys Setpgid(pid int, pgid int) (errno int)
+//sys Setpriority(which int, who int, prio int) (errno int)
+//sys Setprivexec(flag int) (errno int)
+//sys Setregid(rgid int, egid int) (errno int)
+//sys Setreuid(ruid int, euid int) (errno int)
+//sys Setrlimit(which int, lim *Rlimit) (errno int)
+//sys Setsid() (pid int, errno int)
+//sys Settimeofday(tp *Timeval) (errno int)
+//sys Setuid(uid int) (errno int)
+//sys Stat(path string, stat *Stat_t) (errno int) = SYS_STAT64
+//sys Statfs(path string, stat *Statfs_t) (errno int) = SYS_STATFS64
+//sys Symlink(path string, link string) (errno int)
+//sys Sync() (errno int)
+//sys Truncate(path string, length int64) (errno int)
+//sys Umask(newmask int) (errno int)
+//sys Undelete(path string) (errno int)
+//sys Unlink(path string) (errno int)
+//sys Unmount(path string, flags int) (errno int)
+//sys Write(fd int, p []byte) (n int, errno int)
+//sys read(fd int, buf *byte, nbuf int) (n int, errno int)
+//sys write(fd int, buf *byte, nbuf int) (n int, errno int)
+
+
+/*
+ * Unimplemented
+ */
+// Profil
+// Sigaction
+// Sigprocmask
+// Getlogin
+// Sigpending
+// Sigaltstack
+// Ioctl
+// Reboot
+// Execve
+// Vfork
+// Sbrk
+// Sstk
+// Ovadvise
+// Mincore
+// Setitimer
+// Swapon
+// Select
+// Sigsuspend
+// Readv
+// Writev
+// Nfssvc
+// Getfh
+// Quotactl
+// Mount
+// Csops
+// Waitid
+// Add_profil
+// Kdebug_trace
+// Sigreturn
+// Mmap
+// __Sysctl
+// Mlock
+// Munlock
+// Atsocket
+// Kqueue_from_portset_np
+// Kqueue_portset
+// Getattrlist
+// Setattrlist
+// Getdirentriesattr
+// Searchfs
+// Delete
+// Copyfile
+// Poll
+// Watchevent
+// Waitevent
+// Modwatch
+// Getxattr
+// Fgetxattr
+// Setxattr
+// Fsetxattr
+// Removexattr
+// Fremovexattr
+// Listxattr
+// Flistxattr
+// Fsctl
+// Initgroups
+// Posix_spawn
+// Nfsclnt
+// Fhopen
+// Minherit
+// Semsys
+// Msgsys
+// Shmsys
+// Semctl
+// Semget
+// Semop
+// Msgctl
+// Msgget
+// Msgsnd
+// Msgrcv
+// Shmat
+// Shmctl
+// Shmdt
+// Shmget
+// Shm_open
+// Shm_unlink
+// Sem_open
+// Sem_close
+// Sem_unlink
+// Sem_wait
+// Sem_trywait
+// Sem_post
+// Sem_getvalue
+// Sem_init
+// Sem_destroy
+// Open_extended
+// Umask_extended
+// Stat_extended
+// Lstat_extended
+// Fstat_extended
+// Chmod_extended
+// Fchmod_extended
+// Access_extended
+// Settid
+// Gettid
+// Setsgroups
+// Getsgroups
+// Setwgroups
+// Getwgroups
+// Mkfifo_extended
+// Mkdir_extended
+// Identitysvc
+// Shared_region_check_np
+// Shared_region_map_np
+// __pthread_mutex_destroy
+// __pthread_mutex_init
+// __pthread_mutex_lock
+// __pthread_mutex_trylock
+// __pthread_mutex_unlock
+// __pthread_cond_init
+// __pthread_cond_destroy
+// __pthread_cond_broadcast
+// __pthread_cond_signal
+// Setsid_with_pid
+// __pthread_cond_timedwait
+// Aio_fsync
+// Aio_return
+// Aio_suspend
+// Aio_cancel
+// Aio_error
+// Aio_read
+// Aio_write
+// Lio_listio
+// __pthread_cond_wait
+// Iopolicysys
+// Mlockall
+// Munlockall
+// __pthread_kill
+// __pthread_sigmask
+// __sigwait
+// __disable_threadsignal
+// __pthread_markcancel
+// __pthread_canceled
+// __semwait_signal
+// Proc_info
+// Sendfile
+// Stat64_extended
+// Lstat64_extended
+// Fstat64_extended
+// __pthread_chdir
+// __pthread_fchdir
+// Audit
+// Auditon
+// Getauid
+// Setauid
+// Getaudit
+// Setaudit
+// Getaudit_addr
+// Setaudit_addr
+// Auditctl
+// Bsdthread_create
+// Bsdthread_terminate
+// Stack_snapshot
+// Bsdthread_register
+// Workq_open
+// Workq_ops
+// __mac_execve
+// __mac_syscall
+// __mac_get_file
+// __mac_set_file
+// __mac_get_link
+// __mac_set_link
+// __mac_get_proc
+// __mac_set_proc
+// __mac_get_fd
+// __mac_set_fd
+// __mac_get_pid
+// __mac_get_lcid
+// __mac_get_lctx
+// __mac_set_lctx
+// Setlcid
+// Read_nocancel
+// Write_nocancel
+// Open_nocancel
+// Close_nocancel
+// Wait4_nocancel
+// Recvmsg_nocancel
+// Sendmsg_nocancel
+// Recvfrom_nocancel
+// Accept_nocancel
+// Msync_nocancel
+// Fcntl_nocancel
+// Select_nocancel
+// Fsync_nocancel
+// Connect_nocancel
+// Sigsuspend_nocancel
+// Readv_nocancel
+// Writev_nocancel
+// Sendto_nocancel
+// Pread_nocancel
+// Pwrite_nocancel
+// Waitid_nocancel
+// Poll_nocancel
+// Msgsnd_nocancel
+// Msgrcv_nocancel
+// Sem_wait_nocancel
+// Aio_suspend_nocancel
+// __sigwait_nocancel
+// __semwait_signal_nocancel
+// __mac_mount
+// __mac_get_mount
+// __mac_getfsstat
+
