Replace the CloudABI system call table by a machine generated version.

The type definitions and constants that were used by COMPAT_CLOUDABI64
are a literal copy of some headers stored inside of CloudABI's C
library, cloudlibc. What is annoying is that we can't make use of
cloudlibc's system call list, as the format is completely different and
doesn't provide enough information. It had to be synced in manually.

We recently decided to solve this (and some other problems) by moving
the ABI definitions into a separate file:

	https://github.com/NuxiNL/cloudabi/blob/master/cloudabi.txt

This file is processed by a pile of Python scripts to generate the
header files like before, documentation (markdown), but in our case more
importantly: a FreeBSD system call table.

This change discards the old files in sys/contrib/cloudabi and replaces
them by the latest copies, which requires some minor changes here and
there. Because cloudabi.txt also enforces consistent names of the system
call arguments, we have to patch up a small number of system call
implementations to use the new argument names.

The new header files can also be included directly in FreeBSD kernel
space without needing any includes/defines, so we can now remove
cloudabi_syscalldefs.h and cloudabi64_syscalldefs.h. Patch up the
sources to include the definitions directly from sys/contrib/cloudabi
instead.

5 files changed, 996 insertions, 731 deletions

diff --git a/sys/contrib/cloudabi/cloudabi64_types.h b/sys/contrib/cloudabi/cloudabi64_types.h
new file mode 100644
index 0000000..22c0d3f
--- /dev/null
+++ b/sys/contrib/cloudabi/cloudabi64_types.h
@@ -0,0 +1,222 @@
+// Copyright (c) 2016 Nuxi, https://nuxi.nl/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+
+// This file is automatically generated. Do not edit.
+// Source: https://github.com/NuxiNL/cloudabi
+
+#ifndef CLOUDABI64_TYPES_H
+#define CLOUDABI64_TYPES_H
+
+#include "cloudabi_types_common.h"
+
+typedef struct {
+	_Alignas(4) cloudabi_auxtype_t a_type;
+	union {
+		_Alignas(8) uint64_t a_val;
+		_Alignas(8) uint64_t a_ptr;
+	};
+} cloudabi64_auxv_t;
+_Static_assert(offsetof(cloudabi64_auxv_t, a_type) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_auxv_t, a_val) == 8, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_auxv_t, a_ptr) == 8, "Incorrect layout");
+_Static_assert(sizeof(cloudabi64_auxv_t) == 16, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi64_auxv_t) == 8, "Incorrect layout");
+
+typedef struct {
+	_Alignas(8) uint64_t iov_base;
+	_Alignas(8) uint64_t iov_len;
+} cloudabi64_ciovec_t;
+_Static_assert(offsetof(cloudabi64_ciovec_t, iov_base) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_ciovec_t, iov_len) == 8, "Incorrect layout");
+_Static_assert(sizeof(cloudabi64_ciovec_t) == 16, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi64_ciovec_t) == 8, "Incorrect layout");
+
+typedef struct {
+	_Alignas(8) cloudabi_userdata_t userdata;
+	_Alignas(2) cloudabi_errno_t error;
+	_Alignas(1) cloudabi_eventtype_t type;
+	union {
+		struct {
+			_Alignas(8) cloudabi_userdata_t identifier;
+		} clock;
+		struct {
+			_Alignas(8) uint64_t condvar;
+		} condvar;
+		struct {
+			_Alignas(8) cloudabi_filesize_t nbytes;
+			_Alignas(4) cloudabi_fd_t fd;
+			_Alignas(2) cloudabi_eventrwflags_t flags;
+		} fd_readwrite;
+		struct {
+			_Alignas(8) uint64_t lock;
+		} lock;
+		struct {
+			_Alignas(4) cloudabi_fd_t fd;
+			_Alignas(1) cloudabi_signal_t signal;
+			_Alignas(4) cloudabi_exitcode_t exitcode;
+		} proc_terminate;
+	};
+} cloudabi64_event_t;
+_Static_assert(offsetof(cloudabi64_event_t, userdata) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_event_t, error) == 8, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_event_t, type) == 10, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_event_t, clock.identifier) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_event_t, condvar.condvar) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_event_t, fd_readwrite.nbytes) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_event_t, fd_readwrite.fd) == 24, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_event_t, fd_readwrite.flags) == 28, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_event_t, lock.lock) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_event_t, proc_terminate.fd) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_event_t, proc_terminate.signal) == 20, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_event_t, proc_terminate.exitcode) == 24, "Incorrect layout");
+_Static_assert(sizeof(cloudabi64_event_t) == 32, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi64_event_t) == 8, "Incorrect layout");
+
+typedef struct {
+	_Alignas(8) uint64_t iov_base;
+	_Alignas(8) uint64_t iov_len;
+} cloudabi64_iovec_t;
+_Static_assert(offsetof(cloudabi64_iovec_t, iov_base) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_iovec_t, iov_len) == 8, "Incorrect layout");
+_Static_assert(sizeof(cloudabi64_iovec_t) == 16, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi64_iovec_t) == 8, "Incorrect layout");
+
+typedef struct {
+	_Alignas(8) uint64_t ri_data;
+	_Alignas(8) uint64_t ri_datalen;
+	_Alignas(8) uint64_t ri_fds;
+	_Alignas(8) uint64_t ri_fdslen;
+	_Alignas(2) cloudabi_msgflags_t ri_flags;
+} cloudabi64_recv_in_t;
+_Static_assert(offsetof(cloudabi64_recv_in_t, ri_data) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_recv_in_t, ri_datalen) == 8, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_recv_in_t, ri_fds) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_recv_in_t, ri_fdslen) == 24, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_recv_in_t, ri_flags) == 32, "Incorrect layout");
+_Static_assert(sizeof(cloudabi64_recv_in_t) == 40, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi64_recv_in_t) == 8, "Incorrect layout");
+
+typedef struct {
+	_Alignas(8) uint64_t si_data;
+	_Alignas(8) uint64_t si_datalen;
+	_Alignas(8) uint64_t si_fds;
+	_Alignas(8) uint64_t si_fdslen;
+	_Alignas(2) cloudabi_msgflags_t si_flags;
+} cloudabi64_send_in_t;
+_Static_assert(offsetof(cloudabi64_send_in_t, si_data) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_send_in_t, si_datalen) == 8, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_send_in_t, si_fds) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_send_in_t, si_fdslen) == 24, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_send_in_t, si_flags) == 32, "Incorrect layout");
+_Static_assert(sizeof(cloudabi64_send_in_t) == 40, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi64_send_in_t) == 8, "Incorrect layout");
+
+typedef struct {
+	_Alignas(8) uint64_t so_datalen;
+} cloudabi64_send_out_t;
+_Static_assert(offsetof(cloudabi64_send_out_t, so_datalen) == 0, "Incorrect layout");
+_Static_assert(sizeof(cloudabi64_send_out_t) == 8, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi64_send_out_t) == 8, "Incorrect layout");
+
+typedef struct {
+	_Alignas(8) cloudabi_userdata_t userdata;
+	_Alignas(2) cloudabi_subflags_t flags;
+	_Alignas(1) cloudabi_eventtype_t type;
+	union {
+		struct {
+			_Alignas(8) cloudabi_userdata_t identifier;
+			_Alignas(4) cloudabi_clockid_t clock_id;
+			_Alignas(8) cloudabi_timestamp_t timeout;
+			_Alignas(8) cloudabi_timestamp_t precision;
+			_Alignas(2) cloudabi_subclockflags_t flags;
+		} clock;
+		struct {
+			_Alignas(8) uint64_t condvar;
+			_Alignas(8) uint64_t lock;
+			_Alignas(1) cloudabi_mflags_t condvar_scope;
+			_Alignas(1) cloudabi_mflags_t lock_scope;
+		} condvar;
+		struct {
+			_Alignas(4) cloudabi_fd_t fd;
+			_Alignas(2) cloudabi_subrwflags_t flags;
+		} fd_readwrite;
+		struct {
+			_Alignas(8) uint64_t lock;
+			_Alignas(1) cloudabi_mflags_t lock_scope;
+		} lock;
+		struct {
+			_Alignas(4) cloudabi_fd_t fd;
+		} proc_terminate;
+	};
+} cloudabi64_subscription_t;
+_Static_assert(offsetof(cloudabi64_subscription_t, userdata) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, flags) == 8, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, type) == 10, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, clock.identifier) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, clock.clock_id) == 24, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, clock.timeout) == 32, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, clock.precision) == 40, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, clock.flags) == 48, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, condvar.condvar) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, condvar.lock) == 24, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, condvar.condvar_scope) == 32, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, condvar.lock_scope) == 33, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, fd_readwrite.fd) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, fd_readwrite.flags) == 20, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, lock.lock) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, lock.lock_scope) == 24, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_subscription_t, proc_terminate.fd) == 16, "Incorrect layout");
+_Static_assert(sizeof(cloudabi64_subscription_t) == 56, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi64_subscription_t) == 8, "Incorrect layout");
+
+typedef void cloudabi64_threadentry_t(cloudabi_tid_t tid, uint64_t aux);
+
+typedef struct {
+	_Alignas(8) uint64_t ro_datalen;
+	_Alignas(8) uint64_t ro_fdslen;
+	_Alignas(2) cloudabi_sockaddr_t ro_sockname;
+	_Alignas(2) cloudabi_sockaddr_t ro_peername;
+	_Alignas(2) cloudabi_msgflags_t ro_flags;
+} cloudabi64_recv_out_t;
+_Static_assert(offsetof(cloudabi64_recv_out_t, ro_datalen) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_recv_out_t, ro_fdslen) == 8, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_recv_out_t, ro_sockname) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_recv_out_t, ro_peername) == 36, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_recv_out_t, ro_flags) == 56, "Incorrect layout");
+_Static_assert(sizeof(cloudabi64_recv_out_t) == 64, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi64_recv_out_t) == 8, "Incorrect layout");
+
+typedef struct {
+	_Alignas(8) uint64_t entry_point;
+	_Alignas(8) uint64_t stack;
+	_Alignas(8) uint64_t stack_size;
+	_Alignas(8) uint64_t argument;
+} cloudabi64_threadattr_t;
+_Static_assert(offsetof(cloudabi64_threadattr_t, entry_point) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_threadattr_t, stack) == 8, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_threadattr_t, stack_size) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi64_threadattr_t, argument) == 24, "Incorrect layout");
+_Static_assert(sizeof(cloudabi64_threadattr_t) == 32, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi64_threadattr_t) == 8, "Incorrect layout");
+
+#endif
diff --git a/sys/contrib/cloudabi/cloudabi_types_common.h b/sys/contrib/cloudabi/cloudabi_types_common.h
new file mode 100644
index 0000000..b680057
--- /dev/null
+++ b/sys/contrib/cloudabi/cloudabi_types_common.h
@@ -0,0 +1,457 @@
+// Copyright (c) 2016 Nuxi, https://nuxi.nl/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+
+// This file is automatically generated. Do not edit.
+// Source: https://github.com/NuxiNL/cloudabi
+
+#ifndef CLOUDABI_TYPES_COMMON_H
+#define CLOUDABI_TYPES_COMMON_H
+
+#if defined(__FreeBSD__) && defined(_KERNEL)
+#include <sys/stdint.h>
+#elif defined(__linux__) && defined(__KERNEL__)
+#include <linux/types.h>
+#else
+#include <stddef.h>
+#include <stdint.h>
+#endif
+
+typedef uint8_t cloudabi_advice_t;
+#define CLOUDABI_ADVICE_DONTNEED   1
+#define CLOUDABI_ADVICE_NOREUSE    2
+#define CLOUDABI_ADVICE_NORMAL     3
+#define CLOUDABI_ADVICE_RANDOM     4
+#define CLOUDABI_ADVICE_SEQUENTIAL 5
+#define CLOUDABI_ADVICE_WILLNEED   6
+
+typedef uint32_t cloudabi_auxtype_t;
+#define CLOUDABI_AT_ARGDATA    256
+#define CLOUDABI_AT_ARGDATALEN 257
+#define CLOUDABI_AT_CANARY     258
+#define CLOUDABI_AT_CANARYLEN  259
+#define CLOUDABI_AT_NCPUS      260
+#define CLOUDABI_AT_NULL         0
+#define CLOUDABI_AT_PAGESZ       6
+#define CLOUDABI_AT_PHDR         3
+#define CLOUDABI_AT_PHNUM        4
+#define CLOUDABI_AT_TID        261
+
+typedef uint32_t cloudabi_backlog_t;
+
+typedef uint32_t cloudabi_clockid_t;
+#define CLOUDABI_CLOCK_MONOTONIC          1
+#define CLOUDABI_CLOCK_PROCESS_CPUTIME_ID 2
+#define CLOUDABI_CLOCK_REALTIME           3
+#define CLOUDABI_CLOCK_THREAD_CPUTIME_ID  4
+
+typedef uint32_t cloudabi_condvar_t;
+#define CLOUDABI_CONDVAR_HAS_NO_WAITERS 0
+
+typedef uint64_t cloudabi_device_t;
+
+typedef uint64_t cloudabi_dircookie_t;
+#define CLOUDABI_DIRCOOKIE_START 0
+
+typedef uint16_t cloudabi_errno_t;
+#define CLOUDABI_E2BIG            1
+#define CLOUDABI_EACCES           2
+#define CLOUDABI_EADDRINUSE       3
+#define CLOUDABI_EADDRNOTAVAIL    4
+#define CLOUDABI_EAFNOSUPPORT     5
+#define CLOUDABI_EAGAIN           6
+#define CLOUDABI_EALREADY         7
+#define CLOUDABI_EBADF            8
+#define CLOUDABI_EBADMSG          9
+#define CLOUDABI_EBUSY           10
+#define CLOUDABI_ECANCELED       11
+#define CLOUDABI_ECHILD          12
+#define CLOUDABI_ECONNABORTED    13
+#define CLOUDABI_ECONNREFUSED    14
+#define CLOUDABI_ECONNRESET      15
+#define CLOUDABI_EDEADLK         16
+#define CLOUDABI_EDESTADDRREQ    17
+#define CLOUDABI_EDOM            18
+#define CLOUDABI_EDQUOT          19
+#define CLOUDABI_EEXIST          20
+#define CLOUDABI_EFAULT          21
+#define CLOUDABI_EFBIG           22
+#define CLOUDABI_EHOSTUNREACH    23
+#define CLOUDABI_EIDRM           24
+#define CLOUDABI_EILSEQ          25
+#define CLOUDABI_EINPROGRESS     26
+#define CLOUDABI_EINTR           27
+#define CLOUDABI_EINVAL          28
+#define CLOUDABI_EIO             29
+#define CLOUDABI_EISCONN         30
+#define CLOUDABI_EISDIR          31
+#define CLOUDABI_ELOOP           32
+#define CLOUDABI_EMFILE          33
+#define CLOUDABI_EMLINK          34
+#define CLOUDABI_EMSGSIZE        35
+#define CLOUDABI_EMULTIHOP       36
+#define CLOUDABI_ENAMETOOLONG    37
+#define CLOUDABI_ENETDOWN        38
+#define CLOUDABI_ENETRESET       39
+#define CLOUDABI_ENETUNREACH     40
+#define CLOUDABI_ENFILE          41
+#define CLOUDABI_ENOBUFS         42
+#define CLOUDABI_ENODEV          43
+#define CLOUDABI_ENOENT          44
+#define CLOUDABI_ENOEXEC         45
+#define CLOUDABI_ENOLCK          46
+#define CLOUDABI_ENOLINK         47
+#define CLOUDABI_ENOMEM          48
+#define CLOUDABI_ENOMSG          49
+#define CLOUDABI_ENOPROTOOPT     50
+#define CLOUDABI_ENOSPC          51
+#define CLOUDABI_ENOSYS          52
+#define CLOUDABI_ENOTCONN        53
+#define CLOUDABI_ENOTDIR         54
+#define CLOUDABI_ENOTEMPTY       55
+#define CLOUDABI_ENOTRECOVERABLE 56
+#define CLOUDABI_ENOTSOCK        57
+#define CLOUDABI_ENOTSUP         58
+#define CLOUDABI_ENOTTY          59
+#define CLOUDABI_ENXIO           60
+#define CLOUDABI_EOVERFLOW       61
+#define CLOUDABI_EOWNERDEAD      62
+#define CLOUDABI_EPERM           63
+#define CLOUDABI_EPIPE           64
+#define CLOUDABI_EPROTO          65
+#define CLOUDABI_EPROTONOSUPPORT 66
+#define CLOUDABI_EPROTOTYPE      67
+#define CLOUDABI_ERANGE          68
+#define CLOUDABI_EROFS           69
+#define CLOUDABI_ESPIPE          70
+#define CLOUDABI_ESRCH           71
+#define CLOUDABI_ESTALE          72
+#define CLOUDABI_ETIMEDOUT       73
+#define CLOUDABI_ETXTBSY         74
+#define CLOUDABI_EXDEV           75
+#define CLOUDABI_ENOTCAPABLE     76
+
+typedef uint16_t cloudabi_eventrwflags_t;
+#define CLOUDABI_EVENT_FD_READWRITE_HANGUP 0x0001
+
+typedef uint8_t cloudabi_eventtype_t;
+#define CLOUDABI_EVENTTYPE_CLOCK          1
+#define CLOUDABI_EVENTTYPE_CONDVAR        2
+#define CLOUDABI_EVENTTYPE_FD_READ        3
+#define CLOUDABI_EVENTTYPE_FD_WRITE       4
+#define CLOUDABI_EVENTTYPE_LOCK_RDLOCK    5
+#define CLOUDABI_EVENTTYPE_LOCK_WRLOCK    6
+#define CLOUDABI_EVENTTYPE_PROC_TERMINATE 7
+
+typedef uint32_t cloudabi_exitcode_t;
+
+typedef uint32_t cloudabi_fd_t;
+#define CLOUDABI_PROCESS_CHILD 0xffffffff
+#define CLOUDABI_MAP_ANON_FD   0xffffffff
+
+typedef uint16_t cloudabi_fdflags_t;
+#define CLOUDABI_FDFLAG_APPEND   0x0001
+#define CLOUDABI_FDFLAG_DSYNC    0x0002
+#define CLOUDABI_FDFLAG_NONBLOCK 0x0004
+#define CLOUDABI_FDFLAG_RSYNC    0x0008
+#define CLOUDABI_FDFLAG_SYNC     0x0010
+
+typedef uint16_t cloudabi_fdsflags_t;
+#define CLOUDABI_FDSTAT_FLAGS  0x0001
+#define CLOUDABI_FDSTAT_RIGHTS 0x0002
+
+typedef int64_t cloudabi_filedelta_t;
+
+typedef uint64_t cloudabi_filesize_t;
+
+typedef uint8_t cloudabi_filetype_t;
+#define CLOUDABI_FILETYPE_UNKNOWN            0
+#define CLOUDABI_FILETYPE_BLOCK_DEVICE      16
+#define CLOUDABI_FILETYPE_CHARACTER_DEVICE  17
+#define CLOUDABI_FILETYPE_DIRECTORY         32
+#define CLOUDABI_FILETYPE_FIFO              48
+#define CLOUDABI_FILETYPE_POLL              64
+#define CLOUDABI_FILETYPE_PROCESS           80
+#define CLOUDABI_FILETYPE_REGULAR_FILE      96
+#define CLOUDABI_FILETYPE_SHARED_MEMORY    112
+#define CLOUDABI_FILETYPE_SOCKET_DGRAM     128
+#define CLOUDABI_FILETYPE_SOCKET_SEQPACKET 129
+#define CLOUDABI_FILETYPE_SOCKET_STREAM    130
+#define CLOUDABI_FILETYPE_SYMBOLIC_LINK    144
+
+typedef uint16_t cloudabi_fsflags_t;
+#define CLOUDABI_FILESTAT_ATIM     0x0001
+#define CLOUDABI_FILESTAT_ATIM_NOW 0x0002
+#define CLOUDABI_FILESTAT_MTIM     0x0004
+#define CLOUDABI_FILESTAT_MTIM_NOW 0x0008
+#define CLOUDABI_FILESTAT_SIZE     0x0010
+
+typedef uint64_t cloudabi_inode_t;
+
+typedef uint32_t cloudabi_linkcount_t;
+
+typedef uint32_t cloudabi_lock_t;
+#define CLOUDABI_LOCK_UNLOCKED       0x00000000
+#define CLOUDABI_LOCK_WRLOCKED       0x40000000
+#define CLOUDABI_LOCK_KERNEL_MANAGED 0x80000000
+#define CLOUDABI_LOCK_BOGUS          0x80000000
+
+typedef uint32_t cloudabi_lookupflags_t;
+#define CLOUDABI_LOOKUP_SYMLINK_FOLLOW 0x00000001
+
+typedef uint8_t cloudabi_mflags_t;
+#define CLOUDABI_MAP_ANON    0x01
+#define CLOUDABI_MAP_FIXED   0x02
+#define CLOUDABI_MAP_PRIVATE 0x04
+#define CLOUDABI_MAP_SHARED  0x08
+
+typedef uint8_t cloudabi_mprot_t;
+#define CLOUDABI_PROT_EXEC  0x01
+#define CLOUDABI_PROT_WRITE 0x02
+#define CLOUDABI_PROT_READ  0x04
+
+typedef uint8_t cloudabi_msflags_t;
+#define CLOUDABI_MS_ASYNC      0x01
+#define CLOUDABI_MS_INVALIDATE 0x02
+#define CLOUDABI_MS_SYNC       0x04
+
+typedef uint16_t cloudabi_msgflags_t;
+#define CLOUDABI_MSG_CTRUNC  0x0001
+#define CLOUDABI_MSG_EOR     0x0002
+#define CLOUDABI_MSG_PEEK    0x0004
+#define CLOUDABI_MSG_TRUNC   0x0008
+#define CLOUDABI_MSG_WAITALL 0x0010
+
+typedef uint32_t cloudabi_nthreads_t;
+
+typedef uint16_t cloudabi_oflags_t;
+#define CLOUDABI_O_CREAT     0x0001
+#define CLOUDABI_O_DIRECTORY 0x0002
+#define CLOUDABI_O_EXCL      0x0004
+#define CLOUDABI_O_TRUNC     0x0008
+
+typedef uint64_t cloudabi_rights_t;
+#define CLOUDABI_RIGHT_FD_DATASYNC            0x0000000000000001
+#define CLOUDABI_RIGHT_FD_READ                0x0000000000000002
+#define CLOUDABI_RIGHT_FD_SEEK                0x0000000000000004
+#define CLOUDABI_RIGHT_FD_STAT_PUT_FLAGS      0x0000000000000008
+#define CLOUDABI_RIGHT_FD_SYNC                0x0000000000000010
+#define CLOUDABI_RIGHT_FD_TELL                0x0000000000000020
+#define CLOUDABI_RIGHT_FD_WRITE               0x0000000000000040
+#define CLOUDABI_RIGHT_FILE_ADVISE            0x0000000000000080
+#define CLOUDABI_RIGHT_FILE_ALLOCATE          0x0000000000000100
+#define CLOUDABI_RIGHT_FILE_CREATE_DIRECTORY  0x0000000000000200
+#define CLOUDABI_RIGHT_FILE_CREATE_FILE       0x0000000000000400
+#define CLOUDABI_RIGHT_FILE_CREATE_FIFO       0x0000000000000800
+#define CLOUDABI_RIGHT_FILE_LINK_SOURCE       0x0000000000001000
+#define CLOUDABI_RIGHT_FILE_LINK_TARGET       0x0000000000002000
+#define CLOUDABI_RIGHT_FILE_OPEN              0x0000000000004000
+#define CLOUDABI_RIGHT_FILE_READDIR           0x0000000000008000
+#define CLOUDABI_RIGHT_FILE_READLINK          0x0000000000010000
+#define CLOUDABI_RIGHT_FILE_RENAME_SOURCE     0x0000000000020000
+#define CLOUDABI_RIGHT_FILE_RENAME_TARGET     0x0000000000040000
+#define CLOUDABI_RIGHT_FILE_STAT_FGET         0x0000000000080000
+#define CLOUDABI_RIGHT_FILE_STAT_FPUT_SIZE    0x0000000000100000
+#define CLOUDABI_RIGHT_FILE_STAT_FPUT_TIMES   0x0000000000200000
+#define CLOUDABI_RIGHT_FILE_STAT_GET          0x0000000000400000
+#define CLOUDABI_RIGHT_FILE_STAT_PUT_TIMES    0x0000000000800000
+#define CLOUDABI_RIGHT_FILE_SYMLINK           0x0000000001000000
+#define CLOUDABI_RIGHT_FILE_UNLINK            0x0000000002000000
+#define CLOUDABI_RIGHT_MEM_MAP                0x0000000004000000
+#define CLOUDABI_RIGHT_MEM_MAP_EXEC           0x0000000008000000
+#define CLOUDABI_RIGHT_POLL_FD_READWRITE      0x0000000010000000
+#define CLOUDABI_RIGHT_POLL_MODIFY            0x0000000020000000
+#define CLOUDABI_RIGHT_POLL_PROC_TERMINATE    0x0000000040000000
+#define CLOUDABI_RIGHT_POLL_WAIT              0x0000000080000000
+#define CLOUDABI_RIGHT_PROC_EXEC              0x0000000100000000
+#define CLOUDABI_RIGHT_SOCK_ACCEPT            0x0000000200000000
+#define CLOUDABI_RIGHT_SOCK_BIND_DIRECTORY    0x0000000400000000
+#define CLOUDABI_RIGHT_SOCK_BIND_SOCKET       0x0000000800000000
+#define CLOUDABI_RIGHT_SOCK_CONNECT_DIRECTORY 0x0000001000000000
+#define CLOUDABI_RIGHT_SOCK_CONNECT_SOCKET    0x0000002000000000
+#define CLOUDABI_RIGHT_SOCK_LISTEN            0x0000004000000000
+#define CLOUDABI_RIGHT_SOCK_SHUTDOWN          0x0000008000000000
+#define CLOUDABI_RIGHT_SOCK_STAT_GET          0x0000010000000000
+
+typedef uint8_t cloudabi_sa_family_t;
+#define CLOUDABI_AF_UNSPEC 0
+#define CLOUDABI_AF_INET   1
+#define CLOUDABI_AF_INET6  2
+#define CLOUDABI_AF_UNIX   3
+
+typedef uint8_t cloudabi_sdflags_t;
+#define CLOUDABI_SHUT_RD 0x01
+#define CLOUDABI_SHUT_WR 0x02
+
+typedef uint8_t cloudabi_signal_t;
+#define CLOUDABI_SIGABRT    1
+#define CLOUDABI_SIGALRM    2
+#define CLOUDABI_SIGBUS     3
+#define CLOUDABI_SIGCHLD    4
+#define CLOUDABI_SIGCONT    5
+#define CLOUDABI_SIGFPE     6
+#define CLOUDABI_SIGHUP     7
+#define CLOUDABI_SIGILL     8
+#define CLOUDABI_SIGINT     9
+#define CLOUDABI_SIGKILL   10
+#define CLOUDABI_SIGPIPE   11
+#define CLOUDABI_SIGQUIT   12
+#define CLOUDABI_SIGSEGV   13
+#define CLOUDABI_SIGSTOP   14
+#define CLOUDABI_SIGSYS    15
+#define CLOUDABI_SIGTERM   16
+#define CLOUDABI_SIGTRAP   17
+#define CLOUDABI_SIGTSTP   18
+#define CLOUDABI_SIGTTIN   19
+#define CLOUDABI_SIGTTOU   20
+#define CLOUDABI_SIGURG    21
+#define CLOUDABI_SIGUSR1   22
+#define CLOUDABI_SIGUSR2   23
+#define CLOUDABI_SIGVTALRM 24
+#define CLOUDABI_SIGXCPU   25
+#define CLOUDABI_SIGXFSZ   26
+
+typedef uint8_t cloudabi_ssflags_t;
+#define CLOUDABI_SOCKSTAT_CLEAR_ERROR 0x01
+
+typedef uint32_t cloudabi_sstate_t;
+#define CLOUDABI_SOCKSTATE_ACCEPTCONN 0x00000001
+
+typedef uint16_t cloudabi_subclockflags_t;
+#define CLOUDABI_SUBSCRIPTION_CLOCK_ABSTIME 0x0001
+
+typedef uint16_t cloudabi_subflags_t;
+#define CLOUDABI_SUBSCRIPTION_ADD     0x0001
+#define CLOUDABI_SUBSCRIPTION_CLEAR   0x0002
+#define CLOUDABI_SUBSCRIPTION_DELETE  0x0004
+#define CLOUDABI_SUBSCRIPTION_DISABLE 0x0008
+#define CLOUDABI_SUBSCRIPTION_ENABLE  0x0010
+#define CLOUDABI_SUBSCRIPTION_ONESHOT 0x0020
+
+typedef uint16_t cloudabi_subrwflags_t;
+#define CLOUDABI_SUBSCRIPTION_FD_READWRITE_POLL 0x0001
+
+typedef uint32_t cloudabi_tid_t;
+
+typedef uint64_t cloudabi_timestamp_t;
+
+typedef uint8_t cloudabi_ulflags_t;
+#define CLOUDABI_UNLINK_REMOVEDIR 0x01
+
+typedef uint64_t cloudabi_userdata_t;
+
+typedef uint8_t cloudabi_whence_t;
+#define CLOUDABI_WHENCE_CUR 1
+#define CLOUDABI_WHENCE_END 2
+#define CLOUDABI_WHENCE_SET 3
+
+typedef struct {
+	_Alignas(8) cloudabi_dircookie_t d_next;
+	_Alignas(8) cloudabi_inode_t d_ino;
+	_Alignas(4) uint32_t d_namlen;
+	_Alignas(1) cloudabi_filetype_t d_type;
+} cloudabi_dirent_t;
+_Static_assert(offsetof(cloudabi_dirent_t, d_next) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_dirent_t, d_ino) == 8, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_dirent_t, d_namlen) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_dirent_t, d_type) == 20, "Incorrect layout");
+_Static_assert(sizeof(cloudabi_dirent_t) == 24, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi_dirent_t) == 8, "Incorrect layout");
+
+typedef struct {
+	_Alignas(1) cloudabi_filetype_t fs_filetype;
+	_Alignas(2) cloudabi_fdflags_t fs_flags;
+	_Alignas(8) cloudabi_rights_t fs_rights_base;
+	_Alignas(8) cloudabi_rights_t fs_rights_inheriting;
+} cloudabi_fdstat_t;
+_Static_assert(offsetof(cloudabi_fdstat_t, fs_filetype) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_fdstat_t, fs_flags) == 2, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_fdstat_t, fs_rights_base) == 8, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_fdstat_t, fs_rights_inheriting) == 16, "Incorrect layout");
+_Static_assert(sizeof(cloudabi_fdstat_t) == 24, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi_fdstat_t) == 8, "Incorrect layout");
+
+typedef struct {
+	_Alignas(8) cloudabi_device_t st_dev;
+	_Alignas(8) cloudabi_inode_t st_ino;
+	_Alignas(1) cloudabi_filetype_t st_filetype;
+	_Alignas(4) cloudabi_linkcount_t st_nlink;
+	_Alignas(8) cloudabi_filesize_t st_size;
+	_Alignas(8) cloudabi_timestamp_t st_atim;
+	_Alignas(8) cloudabi_timestamp_t st_mtim;
+	_Alignas(8) cloudabi_timestamp_t st_ctim;
+} cloudabi_filestat_t;
+_Static_assert(offsetof(cloudabi_filestat_t, st_dev) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_filestat_t, st_ino) == 8, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_filestat_t, st_filetype) == 16, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_filestat_t, st_nlink) == 20, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_filestat_t, st_size) == 24, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_filestat_t, st_atim) == 32, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_filestat_t, st_mtim) == 40, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_filestat_t, st_ctim) == 48, "Incorrect layout");
+_Static_assert(sizeof(cloudabi_filestat_t) == 56, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi_filestat_t) == 8, "Incorrect layout");
+
+typedef struct {
+	_Alignas(4) cloudabi_fd_t fd;
+	_Alignas(4) cloudabi_lookupflags_t flags;
+} cloudabi_lookup_t;
+_Static_assert(offsetof(cloudabi_lookup_t, fd) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_lookup_t, flags) == 4, "Incorrect layout");
+_Static_assert(sizeof(cloudabi_lookup_t) == 8, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi_lookup_t) == 4, "Incorrect layout");
+
+typedef struct {
+	_Alignas(1) cloudabi_sa_family_t sa_family;
+	union {
+		struct {
+			_Alignas(1) uint8_t addr[4];
+			_Alignas(2) uint16_t port;
+		} sa_inet;
+		struct {
+			_Alignas(1) uint8_t addr[16];
+			_Alignas(2) uint16_t port;
+		} sa_inet6;
+	};
+} cloudabi_sockaddr_t;
+_Static_assert(offsetof(cloudabi_sockaddr_t, sa_family) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_sockaddr_t, sa_inet.addr) == 2, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_sockaddr_t, sa_inet.port) == 6, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_sockaddr_t, sa_inet6.addr) == 2, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_sockaddr_t, sa_inet6.port) == 18, "Incorrect layout");
+_Static_assert(sizeof(cloudabi_sockaddr_t) == 20, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi_sockaddr_t) == 2, "Incorrect layout");
+
+typedef struct {
+	_Alignas(2) cloudabi_sockaddr_t ss_sockname;
+	_Alignas(2) cloudabi_sockaddr_t ss_peername;
+	_Alignas(2) cloudabi_errno_t ss_error;
+	_Alignas(4) cloudabi_sstate_t ss_state;
+} cloudabi_sockstat_t;
+_Static_assert(offsetof(cloudabi_sockstat_t, ss_sockname) == 0, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_sockstat_t, ss_peername) == 20, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_sockstat_t, ss_error) == 40, "Incorrect layout");
+_Static_assert(offsetof(cloudabi_sockstat_t, ss_state) == 44, "Incorrect layout");
+_Static_assert(sizeof(cloudabi_sockstat_t) == 48, "Incorrect layout");
+_Static_assert(_Alignof(cloudabi_sockstat_t) == 4, "Incorrect layout");
+
+#endif
diff --git a/sys/contrib/cloudabi/syscalldefs_md.h b/sys/contrib/cloudabi/syscalldefs_md.h
deleted file mode 100644
index f2e3705..0000000
--- a/sys/contrib/cloudabi/syscalldefs_md.h
+++ /dev/null
@@ -1,255 +0,0 @@
-// Copyright (c) 2015 Nuxi, https://nuxi.nl/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1. Redistributions of source code must retain the above copyright
-//    notice, this list of conditions and the following disclaimer.
-// 2. Redistributions in binary form must reproduce the above copyright
-//    notice, this list of conditions and the following disclaimer in the
-//    documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-// SUCH DAMAGE.
-
-// Machine dependent definitions.
-
-// Macro to force sane alignment rules.
-//
-// On x86-32 it is the case that 64-bit integers are 4-byte aligned when
-// embedded in structs, even though they are 8-byte aligned when not
-// embedded. Force 8-byte alignment explicitly.
-#define MEMBER(type) alignas(alignof(type)) type
-#define ASSERT_OFFSET(type, field, offset32, offset64)            \
-  static_assert((sizeof(PTR(void)) == 4 &&                        \
-                 offsetof(IDENT(type), field) == (offset32)) ||   \
-                    (sizeof(PTR(void)) == 8 &&                    \
-                     offsetof(IDENT(type), field) == (offset64)), \
-                "Offset incorrect")
-#define ASSERT_SIZE(type, size32, size64)                              \
-  static_assert(                                                       \
-      (sizeof(PTR(void)) == 4 && sizeof(IDENT(type)) == (size32)) ||   \
-          (sizeof(PTR(void)) == 8 && sizeof(IDENT(type)) == (size64)), \
-      "Size incorrect")
-
-typedef void IDENT(threadentry_t)(cloudabi_tid_t, PTR(void));
-
-// Auxiliary vector entry, used to provide paramters on startup.
-typedef struct {
-  uint32_t a_type;
-  union {
-    MEMBER(IDENT(size_t)) a_val;
-    MEMBER(PTR(void)) a_ptr;
-  };
-} IDENT(auxv_t);
-ASSERT_OFFSET(auxv_t, a_type, 0, 0);
-ASSERT_OFFSET(auxv_t, a_val, 4, 8);
-ASSERT_OFFSET(auxv_t, a_ptr, 4, 8);
-ASSERT_SIZE(auxv_t, 8, 16);
-
-typedef struct {
-  MEMBER(PTR(const void)) iov_base;
-  MEMBER(IDENT(size_t)) iov_len;
-} IDENT(ciovec_t);
-ASSERT_OFFSET(ciovec_t, iov_base, 0, 0);
-ASSERT_OFFSET(ciovec_t, iov_len, 4, 8);
-ASSERT_SIZE(ciovec_t, 8, 16);
-
-typedef struct {
-  MEMBER(cloudabi_userdata_t) userdata;
-  MEMBER(cloudabi_errno_t) error;
-  MEMBER(cloudabi_eventtype_t) type;
-  union {
-    // CLOUDABI_EVENTTYPE_CLOCK: Wait until the value of a clock
-    // exceeds a value.
-    struct {
-      MEMBER(cloudabi_userdata_t) identifier;
-    } clock;
-
-    // CLOUDABI_EVENTTYPE_CONDVAR: Release a lock and wait on a
-    // condition variable.
-    struct {
-      MEMBER(PTR(_Atomic(cloudabi_condvar_t))) condvar;
-    } condvar;
-
-    // CLOUDABI_EVENTTYPE_FD_READ and CLOUDABI_EVENTTYPE_FD_WRITE:
-    // Wait for a file descriptor to allow read() and write() to be
-    // called without blocking.
-    struct {
-      MEMBER(cloudabi_filesize_t) nbytes;
-      MEMBER(cloudabi_fd_t) fd;
-      MEMBER(uint16_t) flags;
-    } fd_readwrite;
-
-    // CLOUDABI_EVENT_LOCK_RDLOCK and CLOUDABI_EVENT_LOCK_WRLOCK: Wait
-    // and acquire a read or write lock.
-    struct {
-      MEMBER(PTR(_Atomic(cloudabi_lock_t))) lock;
-    } lock;
-
-    // CLOUDABI_EVENTTYPE_PROC_TERMINATE: Wait for a process to terminate.
-    struct {
-      MEMBER(cloudabi_fd_t) fd;
-      MEMBER(cloudabi_signal_t) signal;      // Non-zero if process got killed.
-      MEMBER(cloudabi_exitcode_t) exitcode;  // Exit code.
-    } proc_terminate;
-  };
-} IDENT(event_t);
-ASSERT_OFFSET(event_t, userdata, 0, 0);
-ASSERT_OFFSET(event_t, error, 8, 8);
-ASSERT_OFFSET(event_t, type, 10, 10);
-ASSERT_OFFSET(event_t, clock.identifier, 16, 16);
-ASSERT_OFFSET(event_t, condvar.condvar, 16, 16);
-ASSERT_OFFSET(event_t, fd_readwrite.nbytes, 16, 16);
-ASSERT_OFFSET(event_t, fd_readwrite.fd, 24, 24);
-ASSERT_OFFSET(event_t, fd_readwrite.flags, 28, 28);
-ASSERT_OFFSET(event_t, lock.lock, 16, 16);
-ASSERT_OFFSET(event_t, proc_terminate.fd, 16, 16);
-ASSERT_OFFSET(event_t, proc_terminate.signal, 20, 20);
-ASSERT_OFFSET(event_t, proc_terminate.exitcode, 24, 24);
-ASSERT_SIZE(event_t, 32, 32);
-
-typedef struct {
-  MEMBER(PTR(void)) iov_base;
-  MEMBER(IDENT(size_t)) iov_len;
-} IDENT(iovec_t);
-ASSERT_OFFSET(iovec_t, iov_base, 0, 0);
-ASSERT_OFFSET(iovec_t, iov_len, 4, 8);
-ASSERT_SIZE(iovec_t, 8, 16);
-
-typedef struct {
-  MEMBER(PTR(const IDENT(iovec_t))) ri_data;  // Data I/O vectors.
-  MEMBER(IDENT(size_t)) ri_datalen;           // Number of data I/O vectors.
-  MEMBER(PTR(cloudabi_fd_t)) ri_fds;          // File descriptors.
-  MEMBER(IDENT(size_t)) ri_fdslen;            // Number of file descriptors.
-  MEMBER(cloudabi_msgflags_t) ri_flags;       // Input flags.
-} IDENT(recv_in_t);
-ASSERT_OFFSET(recv_in_t, ri_data, 0, 0);
-ASSERT_OFFSET(recv_in_t, ri_datalen, 4, 8);
-ASSERT_OFFSET(recv_in_t, ri_fds, 8, 16);
-ASSERT_OFFSET(recv_in_t, ri_fdslen, 12, 24);
-ASSERT_OFFSET(recv_in_t, ri_flags, 16, 32);
-ASSERT_SIZE(recv_in_t, 20, 40);
-
-typedef struct {
-  MEMBER(IDENT(size_t)) ro_datalen;  // Bytes of data received.
-  MEMBER(IDENT(size_t)) ro_fdslen;   // Number of file descriptors received.
-  MEMBER(cloudabi_sockaddr_t) ro_sockname;  // Address of receiver.
-  MEMBER(cloudabi_sockaddr_t) ro_peername;  // Address of sender.
-  MEMBER(cloudabi_msgflags_t) ro_flags;     // Output flags.
-} IDENT(recv_out_t);
-ASSERT_OFFSET(recv_out_t, ro_datalen, 0, 0);
-ASSERT_OFFSET(recv_out_t, ro_fdslen, 4, 8);
-ASSERT_OFFSET(recv_out_t, ro_sockname, 8, 16);
-ASSERT_OFFSET(recv_out_t, ro_peername, 28, 36);
-ASSERT_OFFSET(recv_out_t, ro_flags, 48, 56);
-ASSERT_SIZE(recv_out_t, 52, 64);
-
-typedef struct {
-  MEMBER(PTR(const IDENT(ciovec_t))) si_data;  // Data I/O vectors.
-  MEMBER(IDENT(size_t)) si_datalen;            // Number of data I/O vectors.
-  MEMBER(PTR(const cloudabi_fd_t)) si_fds;     // File descriptors.
-  MEMBER(IDENT(size_t)) si_fdslen;             // Number of file descriptors.
-  MEMBER(cloudabi_msgflags_t) si_flags;        // Input flags.
-} IDENT(send_in_t);
-ASSERT_OFFSET(send_in_t, si_data, 0, 0);
-ASSERT_OFFSET(send_in_t, si_datalen, 4, 8);
-ASSERT_OFFSET(send_in_t, si_fds, 8, 16);
-ASSERT_OFFSET(send_in_t, si_fdslen, 12, 24);
-ASSERT_OFFSET(send_in_t, si_flags, 16, 32);
-ASSERT_SIZE(send_in_t, 20, 40);
-
-typedef struct {
-  MEMBER(IDENT(size_t)) so_datalen;  // Bytes of data sent.
-} IDENT(send_out_t);
-ASSERT_OFFSET(send_out_t, so_datalen, 0, 0);
-ASSERT_SIZE(send_out_t, 4, 8);
-
-typedef struct {
-  MEMBER(cloudabi_userdata_t) userdata;
-  MEMBER(uint16_t) flags;
-  MEMBER(cloudabi_eventtype_t) type;
-  union {
-    // CLOUDABI_EVENTTYPE_CLOCK: Wait until the value of a clock
-    // exceeds a value.
-    struct {
-      MEMBER(cloudabi_userdata_t) identifier;
-      MEMBER(cloudabi_clockid_t) clock_id;
-      MEMBER(cloudabi_timestamp_t) timeout;
-      MEMBER(cloudabi_timestamp_t) precision;
-      MEMBER(uint16_t) flags;
-    } clock;
-
-    // CLOUDABI_EVENTTYPE_CONDVAR: Release a lock and wait on a
-    // condition variable.
-    struct {
-      MEMBER(PTR(_Atomic(cloudabi_condvar_t))) condvar;
-      MEMBER(PTR(_Atomic(cloudabi_lock_t))) lock;
-      MEMBER(cloudabi_mflags_t) condvar_scope;
-      MEMBER(cloudabi_mflags_t) lock_scope;
-    } condvar;
-
-    // CLOUDABI_EVENTTYPE_FD_READ and CLOUDABI_EVENTTYPE_FD_WRITE:
-    // Wait for a file descriptor to allow read() and write() to be
-    // called without blocking.
-    struct {
-      MEMBER(cloudabi_fd_t) fd;
-      MEMBER(uint16_t) flags;
-    } fd_readwrite;
-
-    // CLOUDABI_EVENT_LOCK_RDLOCK and CLOUDABI_EVENT_LOCK_WRLOCK: Wait
-    // and acquire a read or write lock.
-    struct {
-      MEMBER(PTR(_Atomic(cloudabi_lock_t))) lock;
-      MEMBER(cloudabi_mflags_t) lock_scope;
-    } lock;
-
-    // CLOUDABI_EVENTTYPE_PROC_TERMINATE: Wait for a process to terminate.
-    struct {
-      MEMBER(cloudabi_fd_t) fd;
-    } proc_terminate;
-  };
-} IDENT(subscription_t);
-ASSERT_OFFSET(subscription_t, userdata, 0, 0);
-ASSERT_OFFSET(subscription_t, flags, 8, 8);
-ASSERT_OFFSET(subscription_t, type, 10, 10);
-ASSERT_OFFSET(subscription_t, clock.identifier, 16, 16);
-ASSERT_OFFSET(subscription_t, clock.clock_id, 24, 24);
-ASSERT_OFFSET(subscription_t, clock.timeout, 32, 32);
-ASSERT_OFFSET(subscription_t, clock.precision, 40, 40);
-ASSERT_OFFSET(subscription_t, clock.flags, 48, 48);
-ASSERT_OFFSET(subscription_t, condvar.condvar, 16, 16);
-ASSERT_OFFSET(subscription_t, condvar.lock, 20, 24);
-ASSERT_OFFSET(subscription_t, condvar.condvar_scope, 24, 32);
-ASSERT_OFFSET(subscription_t, condvar.lock_scope, 25, 33);
-ASSERT_OFFSET(subscription_t, fd_readwrite.fd, 16, 16);
-ASSERT_OFFSET(subscription_t, fd_readwrite.flags, 20, 20);
-ASSERT_OFFSET(subscription_t, lock.lock, 16, 16);
-ASSERT_OFFSET(subscription_t, lock.lock_scope, 20, 24);
-ASSERT_OFFSET(subscription_t, proc_terminate.fd, 16, 16);
-ASSERT_SIZE(subscription_t, 56, 56);
-
-typedef struct {
-  MEMBER(PTR(IDENT(threadentry_t))) entry_point;  // Entry point.
-  MEMBER(PTR(void)) stack;                        // Pointer to stack buffer.
-  MEMBER(IDENT(size_t)) stack_size;               // Size of stack buffer.
-  MEMBER(PTR(void)) argument;  // Argument to be passed to entry point.
-} IDENT(threadattr_t);
-ASSERT_OFFSET(threadattr_t, entry_point, 0, 0);
-ASSERT_OFFSET(threadattr_t, stack, 4, 8);
-ASSERT_OFFSET(threadattr_t, stack_size, 8, 16);
-ASSERT_OFFSET(threadattr_t, argument, 12, 24);
-ASSERT_SIZE(threadattr_t, 16, 32);
-
-#undef MEMBER
-#undef ASSERT_OFFSET
-#undef ASSERT_SIZE
diff --git a/sys/contrib/cloudabi/syscalldefs_mi.h b/sys/contrib/cloudabi/syscalldefs_mi.h
deleted file mode 100644
index adce208..0000000
--- a/sys/contrib/cloudabi/syscalldefs_mi.h
+++ /dev/null
@@ -1,476 +0,0 @@
-// Copyright (c) 2015 Nuxi, https://nuxi.nl/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1. Redistributions of source code must retain the above copyright
-//    notice, this list of conditions and the following disclaimer.
-// 2. Redistributions in binary form must reproduce the above copyright
-//    notice, this list of conditions and the following disclaimer in the
-//    documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-// SUCH DAMAGE.
-
-#ifndef COMMON_SYSCALLDEFS_MI_H
-#define COMMON_SYSCALLDEFS_MI_H
-
-// Machine independent definitions.
-
-// Socket address families.
-#define CLOUDABI_AF_UNSPEC 0
-#define CLOUDABI_AF_INET 1
-#define CLOUDABI_AF_INET6 2
-#define CLOUDABI_AF_UNIX 3
-
-// File and memory I/O advice.
-#define CLOUDABI_ADVICE_DONTNEED 1
-#define CLOUDABI_ADVICE_NOREUSE 2
-#define CLOUDABI_ADVICE_NORMAL 3
-#define CLOUDABI_ADVICE_RANDOM 4
-#define CLOUDABI_ADVICE_SEQUENTIAL 5
-#define CLOUDABI_ADVICE_WILLNEED 6
-
-// Auxiliary vector entries. All entries that are also part of the
-// x86-64 ABI use the same number. All extensions start at 256.
-#define CLOUDABI_AT_ARGDATA 256
-#define CLOUDABI_AT_ARGDATALEN 257
-#define CLOUDABI_AT_CANARY 258
-#define CLOUDABI_AT_CANARYLEN 259
-#define CLOUDABI_AT_NCPUS 260
-#define CLOUDABI_AT_NULL 0
-#define CLOUDABI_AT_PAGESZ 6
-#define CLOUDABI_AT_PHDR 3
-#define CLOUDABI_AT_PHNUM 4
-#define CLOUDABI_AT_TID 261
-
-// Clocks.
-#define CLOUDABI_CLOCK_MONOTONIC 1
-#define CLOUDABI_CLOCK_PROCESS_CPUTIME_ID 2
-#define CLOUDABI_CLOCK_REALTIME 3
-#define CLOUDABI_CLOCK_THREAD_CPUTIME_ID 4
-
-// Condition variables.
-#define CLOUDABI_CONDVAR_HAS_NO_WAITERS 0
-
-// The start of a directory, to be passed to readdir().
-#define CLOUDABI_DIRCOOKIE_START 0
-
-// POSIX standard error numbers.
-#define CLOUDABI_E2BIG 1
-#define CLOUDABI_EACCES 2
-#define CLOUDABI_EADDRINUSE 3
-#define CLOUDABI_EADDRNOTAVAIL 4
-#define CLOUDABI_EAFNOSUPPORT 5
-#define CLOUDABI_EAGAIN 6
-#define CLOUDABI_EALREADY 7
-#define CLOUDABI_EBADF 8
-#define CLOUDABI_EBADMSG 9
-#define CLOUDABI_EBUSY 10
-#define CLOUDABI_ECANCELED 11
-#define CLOUDABI_ECHILD 12
-#define CLOUDABI_ECONNABORTED 13
-#define CLOUDABI_ECONNREFUSED 14
-#define CLOUDABI_ECONNRESET 15
-#define CLOUDABI_EDEADLK 16
-#define CLOUDABI_EDESTADDRREQ 17
-#define CLOUDABI_EDOM 18
-#define CLOUDABI_EDQUOT 19
-#define CLOUDABI_EEXIST 20
-#define CLOUDABI_EFAULT 21
-#define CLOUDABI_EFBIG 22
-#define CLOUDABI_EHOSTUNREACH 23
-#define CLOUDABI_EIDRM 24
-#define CLOUDABI_EILSEQ 25
-#define CLOUDABI_EINPROGRESS 26
-#define CLOUDABI_EINTR 27
-#define CLOUDABI_EINVAL 28
-#define CLOUDABI_EIO 29
-#define CLOUDABI_EISCONN 30
-#define CLOUDABI_EISDIR 31
-#define CLOUDABI_ELOOP 32
-#define CLOUDABI_EMFILE 33
-#define CLOUDABI_EMLINK 34
-#define CLOUDABI_EMSGSIZE 35
-#define CLOUDABI_EMULTIHOP 36
-#define CLOUDABI_ENAMETOOLONG 37
-#define CLOUDABI_ENETDOWN 38
-#define CLOUDABI_ENETRESET 39
-#define CLOUDABI_ENETUNREACH 40
-#define CLOUDABI_ENFILE 41
-#define CLOUDABI_ENOBUFS 42
-#define CLOUDABI_ENODEV 43
-#define CLOUDABI_ENOENT 44
-#define CLOUDABI_ENOEXEC 45
-#define CLOUDABI_ENOLCK 46
-#define CLOUDABI_ENOLINK 47
-#define CLOUDABI_ENOMEM 48
-#define CLOUDABI_ENOMSG 49
-#define CLOUDABI_ENOPROTOOPT 50
-#define CLOUDABI_ENOSPC 51
-#define CLOUDABI_ENOSYS 52
-#define CLOUDABI_ENOTCONN 53
-#define CLOUDABI_ENOTDIR 54
-#define CLOUDABI_ENOTEMPTY 55
-#define CLOUDABI_ENOTRECOVERABLE 56
-#define CLOUDABI_ENOTSOCK 57
-#define CLOUDABI_ENOTSUP 58
-#define CLOUDABI_ENOTTY 59
-#define CLOUDABI_ENXIO 60
-#define CLOUDABI_EOVERFLOW 61
-#define CLOUDABI_EOWNERDEAD 62
-#define CLOUDABI_EPERM 63
-#define CLOUDABI_EPIPE 64
-#define CLOUDABI_EPROTO 65
-#define CLOUDABI_EPROTONOSUPPORT 66
-#define CLOUDABI_EPROTOTYPE 67
-#define CLOUDABI_ERANGE 68
-#define CLOUDABI_EROFS 69
-#define CLOUDABI_ESPIPE 70
-#define CLOUDABI_ESRCH 71
-#define CLOUDABI_ESTALE 72
-#define CLOUDABI_ETIMEDOUT 73
-#define CLOUDABI_ETXTBSY 74
-#define CLOUDABI_EXDEV 75
-
-// Non-standard error numbers.
-#define CLOUDABI_ENOTCAPABLE 76
-
-#define CLOUDABI_EVENT_FD_READWRITE_HANGUP 0x1
-
-// Filter types for cloudabi_eventtype_t.
-#define CLOUDABI_EVENTTYPE_CLOCK 1
-#define CLOUDABI_EVENTTYPE_CONDVAR 2
-#define CLOUDABI_EVENTTYPE_FD_READ 3
-#define CLOUDABI_EVENTTYPE_FD_WRITE 4
-#define CLOUDABI_EVENTTYPE_LOCK_RDLOCK 5
-#define CLOUDABI_EVENTTYPE_LOCK_WRLOCK 6
-#define CLOUDABI_EVENTTYPE_PROC_TERMINATE 7
-
-// File descriptor behavior flags.
-#define CLOUDABI_FDFLAG_APPEND 0x1
-#define CLOUDABI_FDFLAG_DSYNC 0x2
-#define CLOUDABI_FDFLAG_NONBLOCK 0x4
-#define CLOUDABI_FDFLAG_RSYNC 0x8
-#define CLOUDABI_FDFLAG_SYNC 0x10
-
-// fdstat_put() flags.
-#define CLOUDABI_FDSTAT_FLAGS 0x1
-#define CLOUDABI_FDSTAT_RIGHTS 0x2
-
-// filestat_put() flags.
-#define CLOUDABI_FILESTAT_ATIM 0x1
-#define CLOUDABI_FILESTAT_ATIM_NOW 0x2
-#define CLOUDABI_FILESTAT_MTIM 0x4
-#define CLOUDABI_FILESTAT_MTIM_NOW 0x8
-#define CLOUDABI_FILESTAT_SIZE 0x10
-
-// File types returned through struct stat::st_mode.
-#define CLOUDABI_FILETYPE_UNKNOWN 0
-#define CLOUDABI_FILETYPE_BLOCK_DEVICE 0x10
-#define CLOUDABI_FILETYPE_CHARACTER_DEVICE 0x11
-#define CLOUDABI_FILETYPE_DIRECTORY 0x20
-#define CLOUDABI_FILETYPE_FIFO 0x30
-#define CLOUDABI_FILETYPE_POLL 0x40
-#define CLOUDABI_FILETYPE_PROCESS 0x50
-#define CLOUDABI_FILETYPE_REGULAR_FILE 0x60
-#define CLOUDABI_FILETYPE_SHARED_MEMORY 0x70
-#define CLOUDABI_FILETYPE_SOCKET_DGRAM 0x80
-#define CLOUDABI_FILETYPE_SOCKET_SEQPACKET 0x81
-#define CLOUDABI_FILETYPE_SOCKET_STREAM 0x82
-#define CLOUDABI_FILETYPE_SYMBOLIC_LINK 0x90
-
-// Read-write lock related constants.
-#define CLOUDABI_LOCK_UNLOCKED 0                 // Lock is unlocked.
-#define CLOUDABI_LOCK_WRLOCKED 0x40000000        // Lock is write locked.
-#define CLOUDABI_LOCK_KERNEL_MANAGED 0x80000000  // Lock has waiters.
-#define CLOUDABI_LOCK_BOGUS 0x80000000           // Lock is broken.
-
-// Lookup properties for *at() functions.
-#define CLOUDABI_LOOKUP_SYMLINK_FOLLOW (UINT64_C(0x1) << 32)
-
-// Open flags for openat(), etc.
-#define CLOUDABI_O_CREAT 0x1
-#define CLOUDABI_O_DIRECTORY 0x2
-#define CLOUDABI_O_EXCL 0x4
-#define CLOUDABI_O_TRUNC 0x8
-
-// File descriptor returned to pdfork()'s child process.
-#define CLOUDABI_PROCESS_CHILD 0xffffffff
-
-// mmap() map flags.
-#define CLOUDABI_MAP_ANON 0x1
-#define CLOUDABI_MAP_FIXED 0x2
-#define CLOUDABI_MAP_PRIVATE 0x4
-#define CLOUDABI_MAP_SHARED 0x8
-
-// File descriptor that must be passed in when using CLOUDABI_MAP_ANON.
-#define CLOUDABI_MAP_ANON_FD 0xffffffff
-
-// msync() flags.
-#define CLOUDABI_MS_ASYNC 0x1
-#define CLOUDABI_MS_INVALIDATE 0x2
-#define CLOUDABI_MS_SYNC 0x4
-
-// send() and recv() flags.
-#define CLOUDABI_MSG_CTRUNC 0x1    // Control data truncated.
-#define CLOUDABI_MSG_EOR 0x2       // Terminates a record.
-#define CLOUDABI_MSG_PEEK 0x4      // Leave received data in queue.
-#define CLOUDABI_MSG_TRUNC 0x8     // Normal data truncated.
-#define CLOUDABI_MSG_WAITALL 0x10  // Attempt to fill the read buffer.
-
-// mmap()/mprotect() protection flags.
-#define CLOUDABI_PROT_EXEC 0x1
-#define CLOUDABI_PROT_WRITE 0x2
-#define CLOUDABI_PROT_READ 0x4
-
-// File descriptor capabilities/rights.
-#define CLOUDABI_RIGHT_BIT(bit) (UINT64_C(1) << (bit))
-#define CLOUDABI_RIGHT_FD_DATASYNC CLOUDABI_RIGHT_BIT(0)
-#define CLOUDABI_RIGHT_FD_READ CLOUDABI_RIGHT_BIT(1)
-#define CLOUDABI_RIGHT_FD_SEEK CLOUDABI_RIGHT_BIT(2)
-#define CLOUDABI_RIGHT_FD_STAT_PUT_FLAGS CLOUDABI_RIGHT_BIT(3)
-#define CLOUDABI_RIGHT_FD_SYNC CLOUDABI_RIGHT_BIT(4)
-#define CLOUDABI_RIGHT_FD_TELL CLOUDABI_RIGHT_BIT(5)
-#define CLOUDABI_RIGHT_FD_WRITE CLOUDABI_RIGHT_BIT(6)
-#define CLOUDABI_RIGHT_FILE_ADVISE CLOUDABI_RIGHT_BIT(7)
-#define CLOUDABI_RIGHT_FILE_ALLOCATE CLOUDABI_RIGHT_BIT(8)
-#define CLOUDABI_RIGHT_FILE_CREATE_DIRECTORY CLOUDABI_RIGHT_BIT(9)
-#define CLOUDABI_RIGHT_FILE_CREATE_FILE CLOUDABI_RIGHT_BIT(10)
-#define CLOUDABI_RIGHT_FILE_CREATE_FIFO CLOUDABI_RIGHT_BIT(11)
-#define CLOUDABI_RIGHT_FILE_LINK_SOURCE CLOUDABI_RIGHT_BIT(12)
-#define CLOUDABI_RIGHT_FILE_LINK_TARGET CLOUDABI_RIGHT_BIT(13)
-#define CLOUDABI_RIGHT_FILE_OPEN CLOUDABI_RIGHT_BIT(14)
-#define CLOUDABI_RIGHT_FILE_READDIR CLOUDABI_RIGHT_BIT(15)
-#define CLOUDABI_RIGHT_FILE_READLINK CLOUDABI_RIGHT_BIT(16)
-#define CLOUDABI_RIGHT_FILE_RENAME_SOURCE CLOUDABI_RIGHT_BIT(17)
-#define CLOUDABI_RIGHT_FILE_RENAME_TARGET CLOUDABI_RIGHT_BIT(18)
-#define CLOUDABI_RIGHT_FILE_STAT_FGET CLOUDABI_RIGHT_BIT(19)
-#define CLOUDABI_RIGHT_FILE_STAT_FPUT_SIZE CLOUDABI_RIGHT_BIT(20)
-#define CLOUDABI_RIGHT_FILE_STAT_FPUT_TIMES CLOUDABI_RIGHT_BIT(21)
-#define CLOUDABI_RIGHT_FILE_STAT_GET CLOUDABI_RIGHT_BIT(22)
-#define CLOUDABI_RIGHT_FILE_STAT_PUT_TIMES CLOUDABI_RIGHT_BIT(23)
-#define CLOUDABI_RIGHT_FILE_SYMLINK CLOUDABI_RIGHT_BIT(24)
-#define CLOUDABI_RIGHT_FILE_UNLINK CLOUDABI_RIGHT_BIT(25)
-#define CLOUDABI_RIGHT_MEM_MAP CLOUDABI_RIGHT_BIT(26)
-#define CLOUDABI_RIGHT_MEM_MAP_EXEC CLOUDABI_RIGHT_BIT(27)
-#define CLOUDABI_RIGHT_POLL_FD_READWRITE CLOUDABI_RIGHT_BIT(28)
-#define CLOUDABI_RIGHT_POLL_MODIFY CLOUDABI_RIGHT_BIT(29)
-#define CLOUDABI_RIGHT_POLL_PROC_TERMINATE CLOUDABI_RIGHT_BIT(30)
-#define CLOUDABI_RIGHT_POLL_WAIT CLOUDABI_RIGHT_BIT(31)
-#define CLOUDABI_RIGHT_PROC_EXEC CLOUDABI_RIGHT_BIT(32)
-#define CLOUDABI_RIGHT_SOCK_ACCEPT CLOUDABI_RIGHT_BIT(33)
-#define CLOUDABI_RIGHT_SOCK_BIND_DIRECTORY CLOUDABI_RIGHT_BIT(34)
-#define CLOUDABI_RIGHT_SOCK_BIND_SOCKET CLOUDABI_RIGHT_BIT(35)
-#define CLOUDABI_RIGHT_SOCK_CONNECT_DIRECTORY CLOUDABI_RIGHT_BIT(36)
-#define CLOUDABI_RIGHT_SOCK_CONNECT_SOCKET CLOUDABI_RIGHT_BIT(37)
-#define CLOUDABI_RIGHT_SOCK_LISTEN CLOUDABI_RIGHT_BIT(38)
-#define CLOUDABI_RIGHT_SOCK_SHUTDOWN CLOUDABI_RIGHT_BIT(39)
-#define CLOUDABI_RIGHT_SOCK_STAT_GET CLOUDABI_RIGHT_BIT(40)
-
-// Socket shutdown flags.
-#define CLOUDABI_SHUT_RD 0x1
-#define CLOUDABI_SHUT_WR 0x2
-
-// Signals.
-#define CLOUDABI_SIGABRT 1
-#define CLOUDABI_SIGALRM 2
-#define CLOUDABI_SIGBUS 3
-#define CLOUDABI_SIGCHLD 4
-#define CLOUDABI_SIGCONT 5
-#define CLOUDABI_SIGFPE 6
-#define CLOUDABI_SIGHUP 7
-#define CLOUDABI_SIGILL 8
-#define CLOUDABI_SIGINT 9
-#define CLOUDABI_SIGKILL 10
-#define CLOUDABI_SIGPIPE 11
-#define CLOUDABI_SIGQUIT 12
-#define CLOUDABI_SIGSEGV 13
-#define CLOUDABI_SIGSTOP 14
-#define CLOUDABI_SIGSYS 15
-#define CLOUDABI_SIGTERM 16
-#define CLOUDABI_SIGTRAP 17
-#define CLOUDABI_SIGTSTP 18
-#define CLOUDABI_SIGTTIN 19
-#define CLOUDABI_SIGTTOU 20
-#define CLOUDABI_SIGURG 21
-#define CLOUDABI_SIGUSR1 22
-#define CLOUDABI_SIGUSR2 23
-#define CLOUDABI_SIGVTALRM 24
-#define CLOUDABI_SIGXCPU 25
-#define CLOUDABI_SIGXFSZ 26
-
-// sockstat() flags.
-#define CLOUDABI_SOCKSTAT_CLEAR_ERROR 0x1
-
-// sockstat() state.
-#define CLOUDABI_SOCKSTAT_ACCEPTCONN 0x1
-
-// cloudabi_subscription_t flags.
-#define CLOUDABI_SUBSCRIPTION_ADD 0x1
-#define CLOUDABI_SUBSCRIPTION_CLEAR 0x2
-#define CLOUDABI_SUBSCRIPTION_DELETE 0x4
-#define CLOUDABI_SUBSCRIPTION_DISABLE 0x8
-#define CLOUDABI_SUBSCRIPTION_ENABLE 0x10
-#define CLOUDABI_SUBSCRIPTION_ONESHOT 0x20
-
-// cloudabi_subscription_t::clock.flags.
-#define CLOUDABI_SUBSCRIPTION_CLOCK_ABSTIME 0x1
-
-// cloudabi_subscription_t::fd_readwrite.flags.
-#define CLOUDABI_SUBSCRIPTION_FD_READWRITE_POLL 0x1
-
-// unlinkat().
-#define CLOUDABI_UNLINK_REMOVEDIR 0x1
-
-// Seeking.
-#define CLOUDABI_WHENCE_CUR 1
-#define CLOUDABI_WHENCE_END 2
-#define CLOUDABI_WHENCE_SET 3
-
-typedef uint8_t cloudabi_advice_t;      // posix_fadvise() and posix_madvise().
-typedef uint32_t cloudabi_backlog_t;    // listen().
-typedef uint32_t cloudabi_clockid_t;    // clock_*().
-typedef uint32_t cloudabi_condvar_t;    // pthread_cond_*().
-typedef uint64_t cloudabi_device_t;     // struct stat::st_dev.
-typedef uint64_t cloudabi_dircookie_t;  // readdir().
-typedef uint16_t cloudabi_errno_t;      // errno.
-typedef uint8_t cloudabi_eventtype_t;   // poll().
-typedef uint32_t cloudabi_exitcode_t;   // _exit() and _Exit().
-typedef uint32_t cloudabi_fd_t;         // File descriptors.
-typedef uint16_t cloudabi_fdflags_t;    // cloudabi_fdstat_t.
-typedef uint16_t cloudabi_fdsflags_t;   // fd_stat_put().
-typedef int64_t cloudabi_filedelta_t;   // lseek().
-typedef uint64_t cloudabi_filesize_t;   // ftruncate(), struct stat::st_size.
-typedef uint8_t cloudabi_filetype_t;    // struct stat::st_mode.
-typedef uint16_t cloudabi_fsflags_t;    // file_stat_put().
-typedef uint64_t cloudabi_inode_t;      // struct stat::st_ino.
-typedef uint32_t cloudabi_linkcount_t;  // struct stat::st_nlink.
-typedef uint32_t cloudabi_lock_t;       // pthread_{mutex,rwlock}_*().
-typedef uint64_t cloudabi_lookup_t;     // openat(), linkat(), etc.
-typedef uint8_t cloudabi_mflags_t;      // mmap().
-typedef uint8_t cloudabi_mprot_t;       // mmap().
-typedef uint8_t cloudabi_msflags_t;     // msync().
-typedef uint16_t cloudabi_msgflags_t;   // send() and recv().
-typedef uint32_t cloudabi_nthreads_t;   // pthread_cond_*().
-typedef uint16_t cloudabi_oflags_t;     // openat(), etc.
-typedef uint64_t cloudabi_rights_t;     // File descriptor rights.
-typedef uint8_t cloudabi_sa_family_t;   // Socket address family.
-typedef uint8_t cloudabi_sdflags_t;     // shutdown().
-typedef uint8_t cloudabi_ssflags_t;     // sockstat().
-typedef uint8_t cloudabi_signal_t;      // raise().
-typedef uint32_t cloudabi_tid_t;        // Thread ID.
-typedef uint64_t cloudabi_timestamp_t;  // clock_*(), struct stat::st_*tim.
-typedef uint8_t cloudabi_ulflags_t;     // unlinkat().
-typedef uint64_t cloudabi_userdata_t;   // User-supplied data for callbacks.
-typedef uint8_t cloudabi_whence_t;      // lseek().
-
-// Macro to force sane alignment rules.
-//
-// On x86-32 it is the case that 64-bit integers are 4-byte aligned when
-// embedded in structs, even though they are 8-byte aligned when not
-// embedded. Force 8-byte alignment explicitly.
-#define MEMBER(type) alignas(alignof(type)) type
-#define ASSERT_OFFSET(type, field, offset)                    \
-  static_assert(offsetof(cloudabi_##type, field) == (offset), \
-                "Offset incorrect")
-#define ASSERT_SIZE(type, size) \
-  static_assert(sizeof(cloudabi_##type) == (size), "Size incorrect")
-
-// Directory entries.
-typedef struct {
-  MEMBER(cloudabi_dircookie_t) d_next;  // Cookie of the next entry.
-  MEMBER(cloudabi_inode_t) d_ino;       // Inode number of the current entry.
-  MEMBER(uint32_t) d_namlen;  // Length of the name of the current entry.
-  MEMBER(cloudabi_filetype_t) d_type;  // File type of the current entry.
-} cloudabi_dirent_t;
-ASSERT_OFFSET(dirent_t, d_next, 0);
-ASSERT_OFFSET(dirent_t, d_ino, 8);
-ASSERT_OFFSET(dirent_t, d_namlen, 16);
-ASSERT_OFFSET(dirent_t, d_type, 20);
-ASSERT_SIZE(dirent_t, 24);
-
-// File descriptor status.
-typedef struct {
-  MEMBER(cloudabi_filetype_t) fs_filetype;         // File descriptor type.
-  MEMBER(cloudabi_fdflags_t) fs_flags;             // Non-blocking mode, etc.
-  MEMBER(cloudabi_rights_t) fs_rights_base;        // Base rights.
-  MEMBER(cloudabi_rights_t) fs_rights_inheriting;  // Inheriting rights.
-} cloudabi_fdstat_t;
-ASSERT_OFFSET(fdstat_t, fs_filetype, 0);
-ASSERT_OFFSET(fdstat_t, fs_flags, 2);
-ASSERT_OFFSET(fdstat_t, fs_rights_base, 8);
-ASSERT_OFFSET(fdstat_t, fs_rights_inheriting, 16);
-ASSERT_SIZE(fdstat_t, 24);
-
-// File status.
-typedef struct {
-  MEMBER(cloudabi_device_t) st_dev;         // Device storing the file.
-  MEMBER(cloudabi_inode_t) st_ino;          // Inode of the file.
-  MEMBER(cloudabi_filetype_t) st_filetype;  // File type.
-  MEMBER(cloudabi_linkcount_t) st_nlink;    // Number of hardlinks.
-  MEMBER(cloudabi_filesize_t) st_size;      // Size of the file.
-  MEMBER(cloudabi_timestamp_t) st_atim;     // Access time.
-  MEMBER(cloudabi_timestamp_t) st_mtim;     // Modification time.
-  MEMBER(cloudabi_timestamp_t) st_ctim;     // Change time.
-} cloudabi_filestat_t;
-ASSERT_OFFSET(filestat_t, st_dev, 0);
-ASSERT_OFFSET(filestat_t, st_ino, 8);
-ASSERT_OFFSET(filestat_t, st_filetype, 16);
-ASSERT_OFFSET(filestat_t, st_nlink, 20);
-ASSERT_OFFSET(filestat_t, st_size, 24);
-ASSERT_OFFSET(filestat_t, st_atim, 32);
-ASSERT_OFFSET(filestat_t, st_mtim, 40);
-ASSERT_OFFSET(filestat_t, st_ctim, 48);
-ASSERT_SIZE(filestat_t, 56);
-
-typedef struct {
-  MEMBER(cloudabi_sa_family_t) sa_family;
-  union {
-    struct {
-      // IPv4 address and port number.
-      MEMBER(uint8_t) addr[4];
-      MEMBER(uint16_t) port;
-    } sa_inet;
-    struct {
-      // IPv6 address and port number.
-      // TODO(ed): What about the flow info and scope ID?
-      MEMBER(uint8_t) addr[16];
-      MEMBER(uint16_t) port;
-    } sa_inet6;
-  };
-} cloudabi_sockaddr_t;
-ASSERT_OFFSET(sockaddr_t, sa_family, 0);
-ASSERT_OFFSET(sockaddr_t, sa_inet.addr, 2);
-ASSERT_OFFSET(sockaddr_t, sa_inet.port, 6);
-ASSERT_OFFSET(sockaddr_t, sa_inet6.addr, 2);
-ASSERT_OFFSET(sockaddr_t, sa_inet6.port, 18);
-ASSERT_SIZE(sockaddr_t, 20);
-
-// Socket status.
-typedef struct {
-  MEMBER(cloudabi_sockaddr_t) ss_sockname;  // Socket address.
-  MEMBER(cloudabi_sockaddr_t) ss_peername;  // Peer address.
-  MEMBER(cloudabi_errno_t) ss_error;        // Current error state.
-  MEMBER(uint32_t) ss_state;                // State flags.
-} cloudabi_sockstat_t;
-ASSERT_OFFSET(sockstat_t, ss_sockname, 0);
-ASSERT_OFFSET(sockstat_t, ss_peername, 20);
-ASSERT_OFFSET(sockstat_t, ss_error, 40);
-ASSERT_OFFSET(sockstat_t, ss_state, 44);
-ASSERT_SIZE(sockstat_t, 48);
-
-#undef MEMBER
-#undef ASSERT_OFFSET
-#undef ASSERT_SIZE
-
-#endif
diff --git a/sys/contrib/cloudabi/syscalls.master b/sys/contrib/cloudabi/syscalls.master
new file mode 100644
index 0000000..0257fa6
--- /dev/null
+++ b/sys/contrib/cloudabi/syscalls.master
@@ -0,0 +1,317 @@
+ $FreeBSD$
+
+; Copyright (c) 2016 Nuxi, https://nuxi.nl/
+;
+; Redistribution and use in source and binary forms, with or without
+; modification, are permitted provided that the following conditions
+; are met:
+; 1. Redistributions of source code must retain the above copyright
+;    notice, this list of conditions and the following disclaimer.
+; 2. Redistributions in binary form must reproduce the above copyright
+;    notice, this list of conditions and the following disclaimer in the
+;    documentation and/or other materials provided with the distribution.
+;
+; THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+; ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+; OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+; LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+; OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+; SUCH DAMAGE.
+
+; This file is automatically generated. Do not edit.
+; Source: https://github.com/NuxiNL/cloudabi
+
+#include <sys/sysent.h>
+#include <sys/sysproto.h>
+
+#include <contrib/cloudabi/cloudabi64_types.h>
+
+#include <compat/cloudabi64/cloudabi64_proto.h>
+
+0	AUE_NULL	STD	{ cloudabi_timestamp_t \
+					cloudabi_sys_clock_res_get( \
+					cloudabi_clockid_t clock_id); }
+
+1	AUE_NULL	STD	{ cloudabi_timestamp_t \
+					cloudabi_sys_clock_time_get( \
+					cloudabi_clockid_t clock_id, \
+					cloudabi_timestamp_t precision); }
+
+2	AUE_NULL	STD	{ void cloudabi_sys_condvar_signal( \
+					cloudabi_condvar_t *condvar, \
+					cloudabi_mflags_t scope, \
+					cloudabi_nthreads_t nwaiters); }
+
+3	AUE_NULL	STD	{ void cloudabi_sys_fd_close( \
+					cloudabi_fd_t fd); }
+
+4	AUE_NULL	STD	{ cloudabi_fd_t cloudabi_sys_fd_create1( \
+					cloudabi_filetype_t type); }
+
+5	AUE_NULL	STD	{ void cloudabi_sys_fd_create2( \
+					cloudabi_filetype_t type); }
+
+6	AUE_NULL	STD	{ void cloudabi_sys_fd_datasync( \
+					cloudabi_fd_t fd); }
+
+7	AUE_NULL	STD	{ cloudabi_fd_t cloudabi_sys_fd_dup( \
+					cloudabi_fd_t from); }
+
+8	AUE_NULL	STD	{ size_t cloudabi64_sys_fd_pread( \
+					cloudabi_fd_t fd, \
+					const cloudabi64_iovec_t *iov, \
+					size_t iovcnt, \
+					cloudabi_filesize_t offset); }
+
+9	AUE_NULL	STD	{ size_t cloudabi64_sys_fd_pwrite( \
+					cloudabi_fd_t fd, \
+					const cloudabi64_ciovec_t *iov, \
+					size_t iovcnt, \
+					cloudabi_filesize_t offset); }
+
+10	AUE_NULL	STD	{ size_t cloudabi64_sys_fd_read( \
+					cloudabi_fd_t fd, \
+					const cloudabi64_iovec_t *iov, \
+					size_t iovcnt); }
+
+11	AUE_NULL	STD	{ void cloudabi_sys_fd_replace( \
+					cloudabi_fd_t from, \
+					cloudabi_fd_t to); }
+
+12	AUE_NULL	STD	{ cloudabi_filesize_t \
+					cloudabi_sys_fd_seek( \
+					cloudabi_fd_t fd, \
+					cloudabi_filedelta_t offset, \
+					cloudabi_whence_t whence); }
+
+13	AUE_NULL	STD	{ void cloudabi_sys_fd_stat_get( \
+					cloudabi_fd_t fd, \
+					cloudabi_fdstat_t *buf); }
+
+14	AUE_NULL	STD	{ void cloudabi_sys_fd_stat_put( \
+					cloudabi_fd_t fd, \
+					const cloudabi_fdstat_t *buf, \
+					cloudabi_fdsflags_t flags); }
+
+15	AUE_NULL	STD	{ void cloudabi_sys_fd_sync( \
+					cloudabi_fd_t fd); }
+
+16	AUE_NULL	STD	{ size_t cloudabi64_sys_fd_write( \
+					cloudabi_fd_t fd, \
+					const cloudabi64_ciovec_t *iov, \
+					size_t iovcnt); }
+
+17	AUE_NULL	STD	{ void cloudabi_sys_file_advise( \
+					cloudabi_fd_t fd, \
+					cloudabi_filesize_t offset, \
+					cloudabi_filesize_t len, \
+					cloudabi_advice_t advice); }
+
+18	AUE_NULL	STD	{ void cloudabi_sys_file_allocate( \
+					cloudabi_fd_t fd, \
+					cloudabi_filesize_t offset, \
+					cloudabi_filesize_t len); }
+
+19	AUE_NULL	STD	{ void cloudabi_sys_file_create( \
+					cloudabi_fd_t fd, \
+					const char *path, \
+					size_t pathlen, \
+					cloudabi_filetype_t type); }
+
+20	AUE_NULL	STD	{ void cloudabi_sys_file_link( \
+					cloudabi_lookup_t fd1, \
+					const char *path1, \
+					size_t path1len, \
+					cloudabi_fd_t fd2, \
+					const char *path2, \
+					size_t path2len); }
+
+21	AUE_NULL	STD	{ cloudabi_fd_t cloudabi_sys_file_open( \
+					cloudabi_lookup_t dirfd, \
+					const char *path, \
+					size_t pathlen, \
+					cloudabi_oflags_t oflags, \
+					const cloudabi_fdstat_t *fds); }
+
+22	AUE_NULL	STD	{ size_t cloudabi_sys_file_readdir( \
+					cloudabi_fd_t fd, \
+					void *buf, \
+					size_t nbyte, \
+					cloudabi_dircookie_t cookie); }
+
+23	AUE_NULL	STD	{ size_t cloudabi_sys_file_readlink( \
+					cloudabi_fd_t fd, \
+					const char *path, \
+					size_t pathlen, \
+					char *buf, \
+					size_t bufsize); }
+
+24	AUE_NULL	STD	{ void cloudabi_sys_file_rename( \
+					cloudabi_fd_t oldfd, \
+					const char *old, \
+					size_t oldlen, \
+					cloudabi_fd_t newfd, \
+					const char *new, \
+					size_t newlen); }
+
+25	AUE_NULL	STD	{ void cloudabi_sys_file_stat_fget( \
+					cloudabi_fd_t fd, \
+					cloudabi_filestat_t *buf); }
+
+26	AUE_NULL	STD	{ void cloudabi_sys_file_stat_fput( \
+					cloudabi_fd_t fd, \
+					const cloudabi_filestat_t *buf, \
+					cloudabi_fsflags_t flags); }
+
+27	AUE_NULL	STD	{ void cloudabi_sys_file_stat_get( \
+					cloudabi_lookup_t fd, \
+					const char *path, \
+					size_t pathlen, \
+					cloudabi_filestat_t *buf); }
+
+28	AUE_NULL	STD	{ void cloudabi_sys_file_stat_put( \
+					cloudabi_lookup_t fd, \
+					const char *path, \
+					size_t pathlen, \
+					const cloudabi_filestat_t *buf, \
+					cloudabi_fsflags_t flags); }
+
+29	AUE_NULL	STD	{ void cloudabi_sys_file_symlink( \
+					const char *path1, \
+					size_t path1len, \
+					cloudabi_fd_t fd, \
+					const char *path2, \
+					size_t path2len); }
+
+30	AUE_NULL	STD	{ void cloudabi_sys_file_unlink( \
+					cloudabi_fd_t fd, \
+					const char *path, \
+					size_t pathlen, \
+					cloudabi_ulflags_t flags); }
+
+31	AUE_NULL	STD	{ void cloudabi_sys_lock_unlock( \
+					cloudabi_lock_t *lock, \
+					cloudabi_mflags_t scope); }
+
+32	AUE_NULL	STD	{ void cloudabi_sys_mem_advise( \
+					void *addr, \
+					size_t len, \
+					cloudabi_advice_t advice); }
+
+33	AUE_NULL	STD	{ void cloudabi_sys_mem_lock( \
+					const void *addr, \
+					size_t len); }
+
+34	AUE_NULL	STD	{ void cloudabi_sys_mem_map( \
+					void *addr, \
+					size_t len, \
+					cloudabi_mprot_t prot, \
+					cloudabi_mflags_t flags, \
+					cloudabi_fd_t fd, \
+					cloudabi_filesize_t off); }
+
+35	AUE_NULL	STD	{ void cloudabi_sys_mem_protect( \
+					void *addr, \
+					size_t len, \
+					cloudabi_mprot_t prot); }
+
+36	AUE_NULL	STD	{ void cloudabi_sys_mem_sync( \
+					void *addr, \
+					size_t len, \
+					cloudabi_msflags_t flags); }
+
+37	AUE_NULL	STD	{ void cloudabi_sys_mem_unlock( \
+					const void *addr, \
+					size_t len); }
+
+38	AUE_NULL	STD	{ void cloudabi_sys_mem_unmap( \
+					void *addr, \
+					size_t len); }
+
+39	AUE_NULL	STD	{ size_t cloudabi64_sys_poll( \
+					const cloudabi64_subscription_t *in, \
+					cloudabi64_event_t *out, \
+					size_t nsubscriptions); }
+
+40	AUE_NULL	STD	{ void cloudabi_sys_proc_exec( \
+					cloudabi_fd_t fd, \
+					const void *data, \
+					size_t datalen, \
+					const cloudabi_fd_t *fds, \
+					size_t fdslen); }
+
+41	AUE_NULL	STD	{ void cloudabi_sys_proc_exit( \
+					cloudabi_exitcode_t rval); }
+
+42	AUE_NULL	STD	{ void cloudabi_sys_proc_fork(); }
+
+43	AUE_NULL	STD	{ void cloudabi_sys_proc_raise( \
+					cloudabi_signal_t sig); }
+
+44	AUE_NULL	STD	{ void cloudabi_sys_random_get( \
+					void *buf, \
+					size_t nbyte); }
+
+45	AUE_NULL	STD	{ cloudabi_fd_t cloudabi_sys_sock_accept( \
+					cloudabi_fd_t sock, \
+					cloudabi_sockstat_t *buf); }
+
+46	AUE_NULL	STD	{ void cloudabi_sys_sock_bind( \
+					cloudabi_fd_t sock, \
+					cloudabi_fd_t fd, \
+					const char *path, \
+					size_t pathlen); }
+
+47	AUE_NULL	STD	{ void cloudabi_sys_sock_connect( \
+					cloudabi_fd_t sock, \
+					cloudabi_fd_t fd, \
+					const char *path, \
+					size_t pathlen); }
+
+48	AUE_NULL	STD	{ void cloudabi_sys_sock_listen( \
+					cloudabi_fd_t sock, \
+					cloudabi_backlog_t backlog); }
+
+49	AUE_NULL	STD	{ void cloudabi64_sys_sock_recv( \
+					cloudabi_fd_t sock, \
+					const cloudabi64_recv_in_t *in, \
+					cloudabi64_recv_out_t *out); }
+
+50	AUE_NULL	STD	{ void cloudabi64_sys_sock_send( \
+					cloudabi_fd_t sock, \
+					const cloudabi64_send_in_t *in, \
+					cloudabi64_send_out_t *out); }
+
+51	AUE_NULL	STD	{ void cloudabi_sys_sock_shutdown( \
+					cloudabi_fd_t sock, \
+					cloudabi_sdflags_t how); }
+
+52	AUE_NULL	STD	{ void cloudabi_sys_sock_stat_get( \
+					cloudabi_fd_t sock, \
+					cloudabi_sockstat_t *buf, \
+					cloudabi_ssflags_t flags); }
+
+53	AUE_NULL	STD	{ cloudabi_tid_t cloudabi64_sys_thread_create( \
+					cloudabi64_threadattr_t *attr); }
+
+54	AUE_NULL	STD	{ void cloudabi_sys_thread_exit( \
+					cloudabi_lock_t *lock, \
+					cloudabi_mflags_t scope); }
+
+55	AUE_NULL	STD	{ void cloudabi_sys_thread_tcb_set( \
+					void *tcb); }
+
+56	AUE_NULL	STD	{ void cloudabi_sys_thread_yield(); }
+
+57	AUE_NULL	STD	{ size_t cloudabi64_sys_poll_fd( \
+					cloudabi_fd_t fd, \
+					const cloudabi64_subscription_t *in, \
+					size_t nin, \
+					cloudabi64_event_t *out, \
+					size_t nout, \
+					const cloudabi64_subscription_t *timeout); }