syscall: openbsd amd64 syscall support

Add support for syscalls on openbsd amd64. This is based on the
existing freebsd amd64 implementation.

R=mikioh.mikioh, rsc, yourcomputerpal
CC=golang-dev
https://golang.org/cl/4798060

src/pkg/syscall/Makefile

@@ -42,6 +42,15 @@ GOFILES_linux=\
 	sockcmsg_unix.go\
 	syscall_unix.go\
 
+GOFILES_openbsd=\
+	bpf_bsd.go\
+	exec_unix.go\
+	route_bsd.go\
+	route_openbsd.go\
+	sockcmsg_unix.go\
+	syscall_bsd.go\
+	syscall_unix.go\
+
 GOFILES_windows=\
 	exec_windows.go\
 	zerrors_windows.go\

src/pkg/syscall/asm_openbsd_amd64.s

+// 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.
+
+//
+// System call support for AMD64, OpenBSD
+//
+
+// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
+// func Syscall6(trap int64, a1, a2, a3, a4, a5, a6 int64) (r1, r2, err int64);
+// func Syscall9(trap int64, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int64);
+// Trap # in AX, args in DI SI DX, return in AX DX
+
+TEXT	·Syscall(SB),7,$0
+	CALL	runtime·entersyscall(SB)
+	MOVQ	8(SP), AX	// syscall entry
+	MOVQ	16(SP), DI
+	MOVQ	24(SP), SI
+	MOVQ	32(SP), DX
+	MOVQ	$0, R10
+	MOVQ	$0, R8
+	MOVQ	$0, R9
+	SYSCALL
+	JCC	ok
+	MOVQ	$-1, 40(SP)	// r1
+	MOVQ	$0, 48(SP)	// r2
+	MOVQ	AX, 56(SP)	// errno
+	CALL	runtime·exitsyscall(SB)
+	RET
+ok:
+	MOVQ	AX, 40(SP)	// r1
+	MOVQ	DX, 48(SP)	// r2
+	MOVQ	$0, 56(SP)	// errno
+	CALL	runtime·exitsyscall(SB)
+	RET
+
+TEXT	·Syscall6(SB),7,$0
+	CALL	runtime·entersyscall(SB)
+	MOVQ	8(SP), AX	// syscall entry
+	MOVQ	16(SP), DI
+	MOVQ	24(SP), SI
+	MOVQ	32(SP), DX
+	MOVQ	40(SP), R10
+	MOVQ	48(SP), R8
+	MOVQ	56(SP), R9
+	SYSCALL
+	JCC	ok6
+	MOVQ	$-1, 64(SP)	// r1
+	MOVQ	$0, 72(SP)	// r2
+	MOVQ	AX, 80(SP)  	// errno
+	CALL	runtime·exitsyscall(SB)
+	RET
+ok6:
+	MOVQ	AX, 64(SP)	// r1
+	MOVQ	DX, 72(SP)	// r2
+	MOVQ	$0, 80(SP)	// errno
+	CALL	runtime·exitsyscall(SB)
+	RET
+
+TEXT	·Syscall9(SB),7,$0
+	CALL	runtime·entersyscall(SB)
+	MOVQ	8(SP), AX	// syscall entry
+	MOVQ	16(SP), DI
+	MOVQ	24(SP), SI
+	MOVQ	32(SP), DX
+	MOVQ	40(SP), R10
+	MOVQ	48(SP), R8
+	MOVQ	56(SP), R9
+	MOVQ	64(SP), R11
+	MOVQ	72(SP), R12
+	MOVQ	80(SP), R13
+	SUBQ    $32, SP
+	MOVQ	R11, 8(SP)	// arg 7
+	MOVQ	R12, 16(SP)	// arg 8
+	MOVQ	R13, 24(SP)	// arg 9
+	SYSCALL
+	JCC	ok9
+	ADDQ    $32, SP
+	MOVQ	$-1, 64(SP)	// r1
+	MOVQ	$0, 72(SP)	// r2
+	MOVQ	AX, 80(SP)	// errno
+	CALL	runtime·exitsyscall(SB)
+	RET
+ok9:
+	ADDQ    $32, SP
+	MOVQ	AX, 64(SP)	// r1
+	MOVQ	DX, 72(SP)	// r2
+	MOVQ	$0, 80(SP)	// errno
+	CALL	runtime·exitsyscall(SB)
+	RET
+
+TEXT	·RawSyscall(SB),7,$0
+	MOVQ	16(SP), DI
+	MOVQ	24(SP), SI
+	MOVQ	32(SP), DX
+	MOVQ	$0, R10
+	MOVQ	$0, R8
+	MOVQ	$0, R9
+	MOVQ	8(SP), AX	// syscall entry
+	SYSCALL
+	JCC	ok1
+	MOVQ	$-1, 40(SP)	// r1
+	MOVQ	$0, 48(SP)	// r2
+	MOVQ	AX, 56(SP)	// errno
+	RET
+ok1:
+	MOVQ	AX, 40(SP)	// r1
+	MOVQ	DX, 48(SP)	// r2
+	MOVQ	$0, 56(SP)	// errno
+	RET
+
+TEXT	·RawSyscall6(SB),7,$0
+	MOVQ	16(SP), DI
+	MOVQ	24(SP), SI
+	MOVQ	32(SP), DX
+	MOVQ	40(SP), R10
+	MOVQ	48(SP), R8
+	MOVQ	56(SP), R9
+	MOVQ	8(SP), AX	// syscall entry
+	SYSCALL
+	JCC	ok2
+	MOVQ	$-1, 64(SP)	// r1
+	MOVQ	$0, 72(SP)	// r2
+	MOVQ	AX, 80(SP)	// errno
+	RET
+ok2:
+	MOVQ	AX, 64(SP)	// r1
+	MOVQ	DX, 72(SP)	// r2
+	MOVQ	$0, 80(SP)	// errno
+	RET

src/pkg/syscall/mkall.sh

@@ -166,6 +166,12 @@ plan9_386)
 	mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h"
 	mktypes="godefs -gsyscall -f -m32"
 	;;
+openbsd_amd64)
+	mkerrors="$mkerrors -f -m64"
+	mksyscall="./mksyscall.pl -openbsd"
+	mksysnum="curl -s 'http://www.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
+	mktypes="godefs -gsyscall -f-m64"
+	;;
 *)
 	echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
 	exit 1
@@ -176,7 +182,7 @@ esac
 	if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
 	syscall_goos="syscall_$GOOS.go"
 	case "$GOOS" in
-	darwin | freebsd)
+	darwin | freebsd | openbsd)
 		syscall_goos="syscall_bsd.go $syscall_goos"
 		;;
 	esac

src/pkg/syscall/mkerrors.sh

@@ -83,6 +83,28 @@ includes_FreeBSD='
 #include <netinet/ip_mroute.h>
 '
 
+includes_OpenBSD='
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/event.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/sysctl.h>
+#include <sys/termios.h>
+#include <sys/ttycom.h>
+#include <sys/wait.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+#include <netinet/if_ether.h>
+#include <net/if_bridge.h>
+'
+
 includes='
 #include <sys/types.h>
 #include <fcntl.h>
@@ -120,7 +142,7 @@ done
 	# it encounters while processing the input
 	echo "${!indirect} $includes" | $GCC -x c - -E -dM $ccflags |
 	awk '
-		$1 != "#define" || $2 ~ /\(/ {next}
+		$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
 
 		$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next}  # 386 registers
 		$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}

src/pkg/syscall/mksyscall.pl

@@ -25,6 +25,7 @@ my $cmdline = "mksyscall.pl " . join(' ', @ARGV);
 my $errors = 0;
 my $_32bit = "";
 my $plan9 = 0;
+my $openbsd = 0;
 
 if($ARGV[0] eq "-b32") {
 	$_32bit = "big-endian";
@@ -37,6 +38,10 @@ if($ARGV[0] eq "-plan9") {
 	$plan9 = 1;
 	shift;
 }
+if($ARGV[0] eq "-openbsd") {
+	$openbsd = 1;
+	shift;
+}
 
 if($ARGV[0] =~ /^-/) {
 	print STDERR "usage: mksyscall.pl [-b32 | -l32] [file ...]\n";
@@ -115,6 +120,8 @@ while(<>) {
 			$text .= "\n";
 			push @args, "uintptr(_p$n)", "uintptr(len($name))";
 			$n++;
+		} elsif($type eq "int64" && $openbsd) {
+			push @args, "0", "uintptr($name)";
 		} elsif($type eq "int64" && $_32bit ne "") {
 			if($_32bit eq "big-endian") {
 				push @args, "uintptr($name>>32)", "uintptr($name)";

src/pkg/syscall/mksysnum_openbsd.pl

+#!/usr/bin/perl
+# 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.
+#
+# Generate system call table for OpenBSD from master list
+# (for example, /usr/src/sys/kern/syscalls.master).
+
+use strict;
+
+my $command = "mksysnum_openbsd.pl " . join(' ', @ARGV);
+
+print <<EOF;
+// $command
+// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
+
+package syscall
+
+const (
+EOF
+
+while(<>){
+	if(/^([0-9]+)\s+STD\s+(NOLOCK\s+)?({ \S+\s+\*?(\w+).*)$/){
+		my $num = $1;
+		my $proto = $3;
+		my $name = $4;
+		$name =~ y/a-z/A-Z/;
+
+		# There are multiple entries for enosys and nosys, so comment them out.
+		if($name =~ /^SYS_E?NOSYS$/){
+			$name = "// $name";
+		}
+		if($name eq 'SYS_SYS_EXIT'){
+			$name = 'SYS_EXIT';
+		}
+
+		print "	$name = $num;  // $proto\n";
+	}
+}
+
+print <<EOF;
+)
+EOF

src/pkg/syscall/route_openbsd.go

+// Copyright 2011 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.
+
+// Routing sockets and messages for OpenBSD
+
+package syscall
+
+import (
+	"unsafe"
+)
+
+func (any *anyMessage) toRoutingMessage(buf []byte) RoutingMessage {
+	switch any.Type {
+	case RTM_ADD, RTM_DELETE, RTM_CHANGE, RTM_GET, RTM_LOSING, RTM_REDIRECT, RTM_MISS, RTM_LOCK, RTM_RESOLVE:
+		p := (*RouteMessage)(unsafe.Pointer(any))
+		rtm := &RouteMessage{}
+		rtm.Header = p.Header
+		rtm.Data = buf[SizeofRtMsghdr:any.Msglen]
+		return rtm
+	case RTM_IFINFO:
+		p := (*InterfaceMessage)(unsafe.Pointer(any))
+		ifm := &InterfaceMessage{}
+		ifm.Header = p.Header
+		ifm.Data = buf[SizeofIfMsghdr:any.Msglen]
+		return ifm
+	case RTM_NEWADDR, RTM_DELADDR:
+		p := (*InterfaceAddrMessage)(unsafe.Pointer(any))
+		ifam := &InterfaceAddrMessage{}
+		ifam.Header = p.Header
+		ifam.Data = buf[SizeofIfaMsghdr:any.Msglen]
+		return ifam
+	}
+	return nil
+}

src/pkg/syscall/syscall_openbsd.go

+// Copyright 2009,2010 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.
+
+// OpenBSD 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, either here or in
+// syscall_bsd.go or syscall_unix.go.
+
+package syscall
+
+import "unsafe"
+
+const OS = "openbsd"
+
+type SockaddrDatalink struct {
+	Len    uint8
+	Family uint8
+	Index  uint16
+	Type   uint8
+	Nlen   uint8
+	Alen   uint8
+	Slen   uint8
+	Data   [24]int8
+	raw    RawSockaddrDatalink
+}
+
+func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2, err uintptr)
+
+// ParseDirent parses up to max directory entries in buf,
+// appending the names to names. It returns the number
+// bytes consumed from buf, the number of entries added
+// to names, and the new names slice.
+func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) {
+	origlen := len(buf)
+	for max != 0 && len(buf) > 0 {
+		dirent := (*Dirent)(unsafe.Pointer(&buf[0]))
+		if dirent.Reclen == 0 {
+			buf = nil
+			break
+		}
+		buf = buf[dirent.Reclen:]
+		if dirent.Fileno == 0 { // File absent in directory.
+			continue
+		}
+		bytes := (*[10000]byte)(unsafe.Pointer(&dirent.Name[0]))
+		var name = string(bytes[0:dirent.Namlen])
+		if name == "." || name == ".." { // Useless names
+			continue
+		}
+		max--
+		count++
+		names = append(names, name)
+	}
+	return origlen - len(buf), count, names
+}
+
+//sysnb pipe(p *[2]_C_int) (errno int)
+func Pipe(p []int) (errno int) {
+	if len(p) != 2 {
+		return EINVAL
+	}
+	var pp [2]_C_int
+	errno = pipe(&pp)
+	p[0] = int(pp[0])
+	p[1] = int(pp[1])
+	return
+}
+
+// TODO
+func Sendfile(outfd int, infd int, offset *int64, count int) (written int, errno int) {
+	return -1, ENOSYS
+}
+
+/*
+ * Exposed directly
+ */
+//sys	Access(path string, mode uint32) (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 uint32) (errno int)
+//sys	Chown(path string, uid int, gid int) (errno int)
+//sys	Chroot(path string) (errno int)
+//sys	Close(fd int) (errno int)
+//sysnb	Dup(fd int) (nfd int, errno int)
+//sysnb	Dup2(from int, to 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 uint32) (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	Fstatfs(fd int, stat *Statfs_t) (errno int)
+//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)
+//sysnb	Getegid() (egid int)
+//sysnb	Geteuid() (uid int)
+//sys	Getfsstat(buf []Statfs_t, flags int) (n int, errno int)
+//sysnb	Getgid() (gid int)
+//sysnb	Getpgid(pid int) (pgid int, errno int)
+//sysnb	Getpgrp() (pgrp int)
+//sysnb	Getpid() (pid int)
+//sysnb	Getppid() (ppid int)
+//sys	Getpriority(which int, who int) (prio int, errno int)
+//sysnb	Getrlimit(which int, lim *Rlimit) (errno int)
+//sysnb	Getrusage(who int, rusage *Rusage) (errno int)
+//sysnb	Getsid(pid int) (sid int, errno int)
+//sysnb	Gettimeofday(tv *Timeval) (errno int)
+//sysnb	Getuid() (uid int)
+//sys	Issetugid() (tainted bool)
+//sys	Kill(pid int, signum 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	Mkdir(path string, mode uint32) (errno int)
+//sys	Mkfifo(path string, mode uint32) (errno int)
+//sys	Mknod(path string, mode uint32, dev int) (errno int)
+//sys	Nanosleep(time *Timespec, leftover *Timespec) (errno int)
+//sys	Open(path string, mode int, perm uint32) (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	Seek(fd int, offset int64, whence int) (newoffset int64, errno int) = SYS_LSEEK
+//sys	Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (errno int)
+//sysnb	Setegid(egid int) (errno int)
+//sysnb	Seteuid(euid int) (errno int)
+//sysnb	Setgid(gid int) (errno int)
+//sys	Setlogin(name string) (errno int)
+//sysnb	Setpgid(pid int, pgid int) (errno int)
+//sys	Setpriority(which int, who int, prio int) (errno int)
+//sysnb	Setregid(rgid int, egid int) (errno int)
+//sysnb	Setreuid(ruid int, euid int) (errno int)
+//sysnb	Setrlimit(which int, lim *Rlimit) (errno int)
+//sysnb	Setsid() (pid int, errno int)
+//sysnb	Settimeofday(tp *Timeval) (errno int)
+//sysnb	Setuid(uid int) (errno int)
+//sys	Stat(path string, stat *Stat_t) (errno int)
+//sys	Statfs(path string, stat *Statfs_t) (errno int)
+//sys	Symlink(path string, link string) (errno int)
+//sys	Sync() (errno int)
+//sys	Truncate(path string, length int64) (errno int)
+//sys	Umask(newmask int) (oldmask 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	mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, errno int)
+//sys	munmap(addr uintptr, length uintptr) (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
+ */
+// __getcwd
+// __semctl
+// __syscall
+// __sysctl
+// adjfreq
+// break
+// clock_getres
+// clock_gettime
+// clock_settime
+// closefrom
+// execve
+// faccessat
+// fchmodat
+// fchownat
+// fcntl
+// fhopen
+// fhstat
+// fhstatfs
+// fork
+// fstatat
+// futimens
+// getfh
+// getgid
+// getitimer
+// getlogin
+// getresgid
+// getresuid
+// getrtable
+// getthrid
+// ioctl
+// ktrace
+// lfs_bmapv
+// lfs_markv
+// lfs_segclean
+// lfs_segwait
+// linkat
+// mincore
+// minherit
+// mkdirat
+// mkfifoat
+// mknodat
+// mlock
+// mlockall
+// mount
+// mquery
+// msgctl
+// msgget
+// msgrcv
+// msgsnd
+// munlock
+// munlockall
+// nfssvc
+// nnpfspioctl
+// openat
+// poll
+// preadv
+// profil
+// pwritev
+// quotactl
+// readlinkat
+// readv
+// reboot
+// renameat
+// rfork
+// sched_yield
+// semget
+// semop
+// setgroups
+// setitimer
+// setresgid
+// setresuid
+// setrtable
+// setsockopt
+// shmat
+// shmctl
+// shmdt
+// shmget
+// sigaction
+// sigaltstack
+// sigpending
+// sigprocmask
+// sigreturn
+// sigsuspend
+// symlinkat
+// sysarch
+// syscall
+// threxit
+// thrsigdivert
+// thrsleep
+// thrwakeup
+// unlinkat
+// utimensat
+// vfork
+// writev

src/pkg/syscall/syscall_openbsd_amd64.go

+// 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.
+
+package syscall
+
+func Getpagesize() int { return 4096 }
+
+func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
+
+func NsecToTimespec(nsec int64) (ts Timespec) {
+	ts.Sec = int32(nsec / 1e9)
+	ts.Nsec = nsec % 1e9
+	return
+}
+
+func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 }
+
+func NsecToTimeval(nsec int64) (tv Timeval) {
+	nsec += 999 // round up to microsecond
+	tv.Usec = nsec % 1e9 / 1e3
+	tv.Sec = int64(nsec / 1e9)
+	return
+}
+
+func SetKevent(k *Kevent_t, fd, mode, flags int) {
+	k.Ident = uint32(fd)
+	k.Filter = int16(mode)
+	k.Flags = uint16(flags)
+}
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint64(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint32(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint32(length)
+}

src/pkg/syscall/types_openbsd.c

+// 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.
+
+/*
+Input to godefs.  See also mkerrors.sh and mkall.sh
+ */
+
+#define KERNEL
+#include <dirent.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/ptrace.h>
+#include <sys/resource.h>
+#include <sys/select.h>
+#include <sys/signal.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/uio.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+
+// Machine characteristics; for internal use.
+
+enum {
+	$sizeofPtr = sizeof(void*),
+	$sizeofShort = sizeof(short),
+	$sizeofInt = sizeof(int),
+	$sizeofLong = sizeof(long),
+	$sizeofLongLong = sizeof(long long),
+};
+
+// Basic types
+
+typedef short $_C_short;
+typedef int $_C_int;
+typedef long $_C_long;
+typedef long long $_C_long_long;
+
+// Time
+
+typedef struct timespec $Timespec;
+typedef struct timeval $Timeval;
+
+// Processes
+
+typedef struct rusage $Rusage;
+typedef struct rlimit $Rlimit;
+
+typedef gid_t $_Gid_t;
+
+// Files
+
+enum {	// Directory mode bits
+	$S_IFMT = S_IFMT,
+	$S_IFIFO = S_IFIFO,
+	$S_IFCHR = S_IFCHR,
+	$S_IFDIR = S_IFDIR,
+	$S_IFBLK = S_IFBLK,
+	$S_IFREG = S_IFREG,
+	$S_IFLNK = S_IFLNK,
+	$S_IFSOCK = S_IFSOCK,
+	$S_ISUID = S_ISUID,
+	$S_ISGID = S_ISGID,
+	$S_ISVTX = S_ISVTX,
+	$S_IRUSR = S_IRUSR,
+	$S_IWUSR = S_IWUSR,
+	$S_IXUSR = S_IXUSR,
+};
+
+typedef struct stat $Stat_t;
+typedef struct statfs $Statfs_t;
+typedef struct flock $Flock_t;
+
+typedef struct dirent $Dirent;
+
+// Sockets
+
+union sockaddr_all {
+	struct sockaddr s1;	// this one gets used for fields
+	struct sockaddr_in s2;	// these pad it out
+	struct sockaddr_in6 s3;
+	struct sockaddr_un s4;
+	struct sockaddr_dl s5;
+};
+
+struct sockaddr_any {
+	struct sockaddr addr;
+	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
+};
+
+typedef struct sockaddr_in $RawSockaddrInet4;
+typedef struct sockaddr_in6 $RawSockaddrInet6;
+typedef struct sockaddr_un $RawSockaddrUnix;
+typedef struct sockaddr_dl $RawSockaddrDatalink;
+typedef struct sockaddr $RawSockaddr;
+typedef struct sockaddr_any $RawSockaddrAny;
+typedef socklen_t $_Socklen;
+typedef struct linger $Linger;
+typedef struct iovec $Iovec;
+typedef struct ip_mreq $IPMreq;
+typedef struct ipv6_mreq $IPv6Mreq;
+typedef struct msghdr $Msghdr;
+typedef struct cmsghdr $Cmsghdr;
+typedef struct in6_pktinfo $Inet6Pktinfo;
+
+enum {
+	$SizeofSockaddrInet4 = sizeof(struct sockaddr_in),
+	$SizeofSockaddrInet6 = sizeof(struct sockaddr_in6),
+	$SizeofSockaddrAny = sizeof(struct sockaddr_any),
+	$SizeofSockaddrUnix = sizeof(struct sockaddr_un),
+	$SizeofSockaddrDatalink = sizeof(struct sockaddr_dl),
+	$SizeofLinger = sizeof(struct linger),
+	$SizeofIPMreq = sizeof(struct ip_mreq),
+	$SizeofIPv6Mreq = sizeof(struct ipv6_mreq),
+	$SizeofMsghdr = sizeof(struct msghdr),
+	$SizeofCmsghdr = sizeof(struct cmsghdr),
+	$SizeofInet6Pktinfo = sizeof(struct in6_pktinfo),
+};
+
+// Ptrace requests
+
+enum {
+	$PTRACE_TRACEME = PT_TRACE_ME,
+	$PTRACE_CONT = PT_CONTINUE,
+	$PTRACE_KILL = PT_KILL,
+};
+
+// Events (kqueue, kevent)
+
+typedef struct kevent $Kevent_t;
+
+// Select
+
+typedef fd_set $FdSet;
+
+// Routing and interface messages
+
+enum {
+	$SizeofIfMsghdr = sizeof(struct if_msghdr),
+	$SizeofIfData = sizeof(struct if_data),
+	$SizeofIfaMsghdr = sizeof(struct ifa_msghdr),
+	$SizeofRtMsghdr = sizeof(struct rt_msghdr),
+	$SizeofRtMetrics = sizeof(struct rt_metrics),
+};
+
+typedef struct if_msghdr $IfMsghdr;
+typedef struct if_data $IfData;
+typedef struct ifa_msghdr $IfaMsghdr;
+typedef struct rt_msghdr $RtMsghdr;
+typedef struct rt_metrics $RtMetrics;
+
+// Berkeley packet filter
+
+enum {
+	$SizeofBpfVersion = sizeof(struct bpf_version),
+	$SizeofBpfStat = sizeof(struct bpf_stat),
+	$SizeofBpfProgram = sizeof(struct bpf_program),
+	$SizeofBpfInsn = sizeof(struct bpf_insn),
+	$SizeofBpfHdr = sizeof(struct bpf_hdr),
+};
+
+typedef struct bpf_version $BpfVersion;
+typedef struct bpf_stat $BpfStat;
+typedef struct bpf_program $BpfProgram;
+typedef struct bpf_insn $BpfInsn;
+typedef struct bpf_hdr $BpfHdr;
+typedef struct bpf_timeval $BpfTimeval;

src/pkg/syscall/ztypes_openbsd_amd64.go

+// godefs -gsyscall -f-m64 types_openbsd.c
+
+// MACHINE GENERATED - DO NOT EDIT.
+
+package syscall
+
+// Constants
+const (
+	sizeofPtr              = 0x8
+	sizeofShort            = 0x2
+	sizeofInt              = 0x4
+	sizeofLong             = 0x8
+	sizeofLongLong         = 0x8
+	S_IFMT                 = 0xf000
+	S_IFIFO                = 0x1000
+	S_IFCHR                = 0x2000
+	S_IFDIR                = 0x4000
+	S_IFBLK                = 0x6000
+	S_IFREG                = 0x8000
+	S_IFLNK                = 0xa000
+	S_IFSOCK               = 0xc000
+	S_ISUID                = 0x800
+	S_ISGID                = 0x400
+	S_ISVTX                = 0x200
+	S_IRUSR                = 0x100
+	S_IWUSR                = 0x80
+	S_IXUSR                = 0x40
+	SizeofSockaddrInet4    = 0x10
+	SizeofSockaddrInet6    = 0x1c
+	SizeofSockaddrAny      = 0x6c
+	SizeofSockaddrUnix     = 0x6a
+	SizeofSockaddrDatalink = 0x20
+	SizeofLinger           = 0x8
+	SizeofIPMreq           = 0x8
+	SizeofIPv6Mreq         = 0x14
+	SizeofMsghdr           = 0x30
+	SizeofCmsghdr          = 0xc
+	SizeofInet6Pktinfo     = 0x14
+	PTRACE_TRACEME         = 0
+	PTRACE_CONT            = 0x7
+	PTRACE_KILL            = 0x8
+	SizeofIfMsghdr         = 0xf0
+	SizeofIfData           = 0xd8
+	SizeofIfaMsghdr        = 0x18
+	SizeofRtMsghdr         = 0x58
+	SizeofRtMetrics        = 0x30
+	SizeofBpfVersion       = 0x4
+	SizeofBpfStat          = 0x8
+	SizeofBpfProgram       = 0x10
+	SizeofBpfInsn          = 0x8
+	SizeofBpfHdr           = 0x14
+)
+
+// Types
+
+type _C_short int16
+
+type _C_int int32
+
+type _C_long int64
+
+type _C_long_long int64
+
+type Timespec struct {
+	Sec          int32
+	Pad_godefs_0 [4]byte
+	Nsec         int64
+}
+
+type Timeval struct {
+	Sec  int64
+	Usec int64
+}
+
+type Rusage struct {
+	Utime    Timeval
+	Stime    Timeval
+	Maxrss   int64
+	Ixrss    int64
+	Idrss    int64
+	Isrss    int64
+	Minflt   int64
+	Majflt   int64
+	Nswap    int64
+	Inblock  int64
+	Oublock  int64
+	Msgsnd   int64
+	Msgrcv   int64
+	Nsignals int64
+	Nvcsw    int64
+	Nivcsw   int64
+}
+
+type Rlimit struct {
+	Cur uint64
+	Max uint64
+}
+
+type _Gid_t uint32
+
+type Stat_t struct {
+	Dev            int32
+	Ino            uint32
+	Mode           uint32
+	Nlink          uint32
+	Uid            uint32
+	Gid            uint32
+	Rdev           int32
+	Lspare0        int32
+	Atim           Timespec
+	Mtim           Timespec
+	Ctim           Timespec
+	Size           int64
+	Blocks         int64
+	Blksize        uint32
+	Flags          uint32
+	Gen            uint32
+	Lspare1        int32
+	X__st_birthtim Timespec
+	Qspare         [2]int64
+}
+
+type Statfs_t struct {
+	F_flags       uint32
+	F_bsize       uint32
+	F_iosize      uint32
+	Pad_godefs_0  [4]byte
+	F_blocks      uint64
+	F_bfree       uint64
+	F_bavail      int64
+	F_files       uint64
+	F_ffree       uint64
+	F_favail      int64
+	F_syncwrites  uint64
+	F_syncreads   uint64
+	F_asyncwrites uint64
+	F_asyncreads  uint64
+	F_fsid        [8]byte /* fsid_t */
+	F_namemax     uint32
+	F_owner       uint32
+	F_ctime       uint32
+	F_spare       [3]uint32
+	F_fstypename  [16]int8
+	F_mntonname   [90]int8
+	F_mntfromname [90]int8
+	Pad_godefs_1  [4]byte
+	Mount_info    [160]byte /* mount_info */
+}
+
+type Flock_t struct {
+	Start  int64
+	Len    int64
+	Pid    int32
+	Type   int16
+	Whence int16
+}
+
+type Dirent struct {
+	Fileno uint32
+	Reclen uint16
+	Type   uint8
+	Namlen uint8
+	Name   [256]int8
+}
+
+type RawSockaddrInet4 struct {
+	Len    uint8
+	Family uint8
+	Port   uint16
+	Addr   [4]byte /* in_addr */
+	Zero   [8]int8
+}
+
+type RawSockaddrInet6 struct {
+	Len      uint8
+	Family   uint8
+	Port     uint16
+	Flowinfo uint32
+	Addr     [16]byte /* in6_addr */
+	Scope_id uint32
+}
+
+type RawSockaddrUnix struct {
+	Len    uint8
+	Family uint8
+	Path   [104]int8
+}
+
+type RawSockaddrDatalink struct {
+	Len    uint8
+	Family uint8
+	Index  uint16
+	Type   uint8
+	Nlen   uint8
+	Alen   uint8
+	Slen   uint8
+	Data   [24]int8
+}
+
+type RawSockaddr struct {
+	Len    uint8
+	Family uint8
+	Data   [14]int8
+}
+
+type RawSockaddrAny struct {
+	Addr RawSockaddr
+	Pad  [92]int8
+}
+
+type _Socklen uint32
+
+type Linger struct {
+	Onoff  int32
+	Linger int32
+}
+
+type Iovec struct {
+	Base *byte
+	Len  uint64
+}
+
+type IPMreq struct {
+	Multiaddr [4]byte /* in_addr */
+	Interface [4]byte /* in_addr */
+}
+
+type IPv6Mreq struct {
+	Multiaddr [16]byte /* in6_addr */
+	Interface uint32
+}
+
+type Msghdr struct {
+	Name         *byte
+	Namelen      uint32
+	Pad_godefs_0 [4]byte
+	Iov          *Iovec
+	Iovlen       uint32
+	Pad_godefs_1 [4]byte
+	Control      *byte
+	Controllen   uint32
+	Flags        int32
+}
+
+type Cmsghdr struct {
+	Len   uint32
+	Level int32
+	Type  int32
+}
+
+type Inet6Pktinfo struct {
+	Addr    [16]byte /* in6_addr */
+	Ifindex uint32
+}
+
+type Kevent_t struct {
+	Ident  uint32
+	Filter int16
+	Flags  uint16
+	Fflags uint32
+	Data   int32
+	Udata  *byte
+}
+
+type FdSet struct {
+	Bits [32]int32
+}
+
+type IfMsghdr struct {
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Hdrlen  uint16
+	Index   uint16
+	Tableid uint16
+	Pad1    uint8
+	Pad2    uint8
+	Addrs   int32
+	Flags   int32
+	Xflags  int32
+	Data    IfData
+}
+
+type IfData struct {
+	Type         uint8
+	Addrlen      uint8
+	Hdrlen       uint8
+	Link_state   uint8
+	Mtu          uint32
+	Metric       uint32
+	Pad          uint32
+	Baudrate     uint64
+	Ipackets     uint64
+	Ierrors      uint64
+	Opackets     uint64
+	Oerrors      uint64
+	Collisions   uint64
+	Ibytes       uint64
+	Obytes       uint64
+	Imcasts      uint64
+	Omcasts      uint64
+	Iqdrops      uint64
+	Noproto      uint64
+	Lastchange   Timeval
+	Mclpool      [7][12]byte /* mclpool */
+	Pad_godefs_0 [4]byte
+}
+
+type IfaMsghdr struct {
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Hdrlen  uint16
+	Index   uint16
+	Tableid uint16
+	Pad1    uint8
+	Pad2    uint8
+	Addrs   int32
+	Flags   int32
+	Metric  int32
+}
+
+type RtMsghdr struct {
+	Msglen   uint16
+	Version  uint8
+	Type     uint8
+	Hdrlen   uint16
+	Index    uint16
+	Tableid  uint16
+	Priority uint8
+	Mpls     uint8
+	Addrs    int32
+	Flags    int32
+	Fmask    int32
+	Pid      int32
+	Seq      int32
+	Errno    int32
+	Inits    uint32
+	Rmx      RtMetrics
+}
+
+type RtMetrics struct {
+	Pksent   uint64
+	Locks    uint32
+	Mtu      uint32
+	Expire   uint32
+	Refcnt   uint32
+	Hopcount uint32
+	Recvpipe uint32
+	Sendpipe uint32
+	Ssthresh uint32
+	Rtt      uint32
+	Rttvar   uint32
+}
+
+type BpfVersion struct {
+	Major uint16
+	Minor uint16
+}
+
+type BpfStat struct {
+	Recv uint32
+	Drop uint32
+}
+
+type BpfProgram struct {
+	Len          uint32
+	Pad_godefs_0 [4]byte
+	Insns        *BpfInsn
+}
+
+type BpfInsn struct {
+	Code uint16
+	Jt   uint8
+	Jf   uint8
+	K    uint32
+}
+
+type BpfHdr struct {
+	Tstamp       BpfTimeval
+	Caplen       uint32
+	Datalen      uint32
+	Hdrlen       uint16
+	Pad_godefs_0 [2]byte
+}
+
+type BpfTimeval struct {
+	Sec  uint32
+	Usec uint32
+}