Commit 71ac5b151524288562bb78d9b0924bb3b0ba5e1c | zig

author	Andrew Kelley <andrew@ziglang.org> 2020-10-17 17:53:47-07:00
committer	Andrew Kelley <andrew@ziglang.org> 2020-10-17 17:53:47-07:00
log	71ac5b151524288562bb78d9b0924bb3b0ba5e1c
tree	4c204780f7877567e64f6d30f40204063ed06eed
parent	9052e0b1377e4c4cd23b979b4a486df27a3444bd
parent	05b1a7414e2737fd987071a03a3fc8387b4fd268

Merge branch 'semarie-openbsd-minimal'

22 files changed, 1181 insertions(+), 41 deletions(-)

lib
- std
  - c.zig
  - c
    openbsd.zig
  - debug.zig
  - dynamic_library.zig
  - event
    loop.zig
  - fs.zig
  - fs
    get_app_data_dir.zig
    watch.zig
  - os.zig
  - os
    bits.zig
    bits
    openbsd.zig
    openbsd.zig
  - packed_int_array.zig
  - process.zig
  - target.zig
  - zig
    cross_target.zig
src
- libc_installation.zig
- link
  - Elf.zig
- stage1.zig
- stage1
  - os.cpp
  - os.hpp
- target.zig

lib/std/c.zig+1-1

...	...	@@ -249,7 +249,7 @@ pub extern "c" fn aligned_alloc(alignment: usize, size: usize) ?*c_void;
249	249	pub extern "c" fn malloc(usize) ?*c_void;
250	250
251	251	pub usingnamespace switch (builtin.os.tag) {
252		.linux, .freebsd, .kfreebsd, .netbsd, .openbsd => struct {
	252	.linux, .freebsd, .kfreebsd, .netbsd => struct {
253	253	pub extern "c" fn malloc_usable_size(?*const c_void) usize;
254	254	},
255	255	.macos, .ios, .watchos, .tvos => struct {

lib/std/c/openbsd.zig+23

...	...	@@ -3,9 +3,32 @@
3	3	// This file is part of [zig](https://ziglang.org/), which is MIT licensed.
4	4	// The MIT license requires this copyright notice to be included in all copies
5	5	// and substantial portions of the software.
	6	const std = @import("../std.zig");
	7	const builtin = std.builtin;
	8
	9	usingnamespace std.c;
	10
	11	extern "c" fn __errno() *c_int;
	12	pub const _errno = __errno;
	13
	14	pub const dl_iterate_phdr_callback = fn (info: dl_phdr_info, size: usize, data: ?c_void) callconv(.C) c_int;
	15	pub extern "c" fn dl_iterate_phdr(callback: dl_iterate_phdr_callback, data: ?*c_void) c_int;
	16
	17	pub extern "c" fn arc4random_buf(buf: [*]u8, len: usize) void;
	18
	19	pub extern "c" fn getdents(fd: c_int, buf_ptr: [*]u8, nbytes: usize) usize;
	20	pub extern "c" fn sigaltstack(ss: ?stack_t, old_ss: ?stack_t) c_int;
	21
6	22	pub const pthread_mutex_t = extern struct {
7	23	inner: ?*c_void = null,
8	24	};
9	25	pub const pthread_cond_t = extern struct {
10	26	inner: ?*c_void = null,
11	27	};
	28	pub const pthread_spinlock_t = extern struct {
	29	inner: ?*c_void = null,
	30	};
	31
	32	pub const pthread_attr_t = extern struct {
	33	inner: ?*c_void = null,
	34	};

lib/std/debug.zig+2-1

...	...	@@ -654,6 +654,7 @@ pub fn openSelfDebugInfo(allocator: *mem.Allocator) anyerror!DebugInfo {
654	654	.freebsd,
655	655	.netbsd,
656	656	.dragonfly,
	657	.openbsd,
657	658	.macos,
658	659	.windows,
659	660	=> return DebugInfo.init(allocator),
...	...	@@ -1640,7 +1641,7 @@ pub const ModuleDebugInfo = switch (builtin.os.tag) {
1640	1641	};
1641	1642	}
1642	1643	},
1643		.linux, .netbsd, .freebsd, .dragonfly => struct {
	1644	.linux, .netbsd, .freebsd, .dragonfly, .openbsd => struct {
1644	1645	base_address: usize,
1645	1646	dwarf: DW.DwarfInfo,
1646	1647	mapped_memory: []const u8,

lib/std/dynamic_library.zig+2-2

...	...	@@ -19,7 +19,7 @@ const max = std.math.max;
19	19	pub const DynLib = switch (builtin.os.tag) {
20	20	.linux => if (builtin.link_libc) DlDynlib else ElfDynLib,
21	21	.windows => WindowsDynLib,
22		.macos, .tvos, .watchos, .ios, .freebsd => DlDynlib,
	22	.macos, .tvos, .watchos, .ios, .freebsd, .openbsd => DlDynlib,
23	23	else => void,
24	24	};
25	25
...	...	@@ -402,7 +402,7 @@ pub const DlDynlib = struct {
402	402
403	403	test "dynamic_library" {
404	404	const libname = switch (builtin.os.tag) {
405		.linux, .freebsd => "invalid_so.so",
	405	.linux, .freebsd, .openbsd => "invalid_so.so",
406	406	.windows => "invalid_dll.dll",
407	407	.macos, .tvos, .watchos, .ios => "invalid_dylib.dylib",
408	408	else => return error.SkipZigTest,

lib/std/event/loop.zig+12-11

...	...	@@ -69,7 +69,7 @@ pub const Loop = struct {
69	69	};
70	70
71	71	pub const EventFd = switch (builtin.os.tag) {
72		.macos, .freebsd, .netbsd, .dragonfly => KEventFd,
	72	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => KEventFd,
73	73	.linux => struct {
74	74	base: ResumeNode,
75	75	epoll_op: u32,
...	...	@@ -88,7 +88,7 @@ pub const Loop = struct {
88	88	};
89	89
90	90	pub const Basic = switch (builtin.os.tag) {
91		.macos, .freebsd, .netbsd, .dragonfly => KEventBasic,
	91	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => KEventBasic,
92	92	.linux => struct {
93	93	base: ResumeNode,
94	94	},
...	...	@@ -266,7 +266,7 @@ pub const Loop = struct {
266	266	self.extra_threads[extra_thread_index] = try Thread.spawn(self, workerRun);
267	267	}
268	268	},
269		.macos, .freebsd, .netbsd, .dragonfly => {
	269	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => {
270	270	self.os_data.kqfd = try os.kqueue();
271	271	errdefer os.close(self.os_data.kqfd);
272	272
...	...	@@ -391,7 +391,7 @@ pub const Loop = struct {
391	391	while (self.available_eventfd_resume_nodes.pop()) \|node\| os.close(node.data.eventfd);
392	392	os.close(self.os_data.epollfd);
393	393	},
394		.macos, .freebsd, .netbsd, .dragonfly => {
	394	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => {
395	395	os.close(self.os_data.kqfd);
396	396	},
397	397	.windows => {
...	...	@@ -485,7 +485,7 @@ pub const Loop = struct {
485	485	.linux => {
486	486	self.linuxWaitFd(fd, os.EPOLLET \| os.EPOLLONESHOT \| os.EPOLLIN);
487	487	},
488		.macos, .freebsd, .netbsd, .dragonfly => {
	488	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => {
489	489	self.bsdWaitKev(@intCast(usize, fd), os.EVFILT_READ, os.EV_ONESHOT);
490	490	},
491	491	else => @compileError("Unsupported OS"),
...	...	@@ -497,7 +497,7 @@ pub const Loop = struct {
497	497	.linux => {
498	498	self.linuxWaitFd(fd, os.EPOLLET \| os.EPOLLONESHOT \| os.EPOLLOUT);
499	499	},
500		.macos, .freebsd, .netbsd, .dragonfly => {
	500	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => {
501	501	self.bsdWaitKev(@intCast(usize, fd), os.EVFILT_WRITE, os.EV_ONESHOT);
502	502	},
503	503	else => @compileError("Unsupported OS"),
...	...	@@ -509,7 +509,7 @@ pub const Loop = struct {
509	509	.linux => {
510	510	self.linuxWaitFd(fd, os.EPOLLET \| os.EPOLLONESHOT \| os.EPOLLOUT \| os.EPOLLIN);
511	511	},
512		.macos, .freebsd, .netbsd, .dragonfly => {
	512	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => {
513	513	self.bsdWaitKev(@intCast(usize, fd), os.EVFILT_READ, os.EV_ONESHOT);
514	514	self.bsdWaitKev(@intCast(usize, fd), os.EVFILT_WRITE, os.EV_ONESHOT);
515	515	},
...	...	@@ -578,7 +578,7 @@ pub const Loop = struct {
578	578	const eventfd_node = &resume_stack_node.data;
579	579	eventfd_node.base.handle = next_tick_node.data;
580	580	switch (builtin.os.tag) {
581		.macos, .freebsd, .netbsd, .dragonfly => {
	581	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => {
582	582	const kevent_array = @as(*const [1]os.Kevent, &eventfd_node.kevent);
583	583	const empty_kevs = &[0]os.Kevent{};
584	584	_ = os.kevent(self.os_data.kqfd, kevent_array, empty_kevs, null) catch {
...	...	@@ -644,6 +644,7 @@ pub const Loop = struct {
644	644	.freebsd,
645	645	.netbsd,
646	646	.dragonfly,
	647	.openbsd,
647	648	=> self.fs_thread.wait(),
648	649	else => {},
649	650	}
...	...	@@ -736,7 +737,7 @@ pub const Loop = struct {
736	737	}
737	738	return;
738	739	},
739		.macos, .freebsd, .netbsd, .dragonfly => {
	740	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => {
740	741	const final_kevent = @as(*const [1]os.Kevent, &self.os_data.final_kevent);
741	742	const empty_kevs = &[0]os.Kevent{};
742	743	// cannot fail because we already added it and this just enables it
...	...	@@ -1351,7 +1352,7 @@ pub const Loop = struct {
1351	1352	}
1352	1353	}
1353	1354	},
1354		.macos, .freebsd, .netbsd, .dragonfly => {
	1355	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => {
1355	1356	var eventlist: [1]os.Kevent = undefined;
1356	1357	const empty_kevs = &[0]os.Kevent{};
1357	1358	const count = os.kevent(self.os_data.kqfd, empty_kevs, eventlist[0..], null) catch unreachable;
...	...	@@ -1477,7 +1478,7 @@ pub const Loop = struct {
1477	1478
1478	1479	const OsData = switch (builtin.os.tag) {
1479	1480	.linux => LinuxOsData,
1480		.macos, .freebsd, .netbsd, .dragonfly => KEventData,
	1481	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => KEventData,
1481	1482	.windows => struct {
1482	1483	io_port: windows.HANDLE,
1483	1484	extra_thread_count: usize,

lib/std/fs.zig+42-5

...	...	@@ -39,7 +39,7 @@ pub const Watch = @import("fs/watch.zig").Watch;
39	39	/// fit into a UTF-8 encoded array of this length.
40	40	/// The byte count includes room for a null sentinel byte.
41	41	pub const MAX_PATH_BYTES = switch (builtin.os.tag) {
42		.linux, .macos, .ios, .freebsd, .netbsd, .dragonfly => os.PATH_MAX,
	42	.linux, .macos, .ios, .freebsd, .netbsd, .dragonfly, .openbsd => os.PATH_MAX,
43	43	// Each UTF-16LE character may be expanded to 3 UTF-8 bytes.
44	44	// If it would require 4 UTF-8 bytes, then there would be a surrogate
45	45	// pair in the UTF-16LE, and we (over)account 3 bytes for it that way.
...	...	@@ -303,7 +303,7 @@ pub const Dir = struct {
303	303	const IteratorError = error{AccessDenied} \|\| os.UnexpectedError;
304	304
305	305	pub const Iterator = switch (builtin.os.tag) {
306		.macos, .ios, .freebsd, .netbsd, .dragonfly => struct {
	306	.macos, .ios, .freebsd, .netbsd, .dragonfly, .openbsd => struct {
307	307	dir: Dir,
308	308	seek: i64,
309	309	buf: [8192]u8, // TODO align(@alignOf(os.dirent)),
...	...	@@ -319,7 +319,7 @@ pub const Dir = struct {
319	319	pub fn next(self: *Self) Error!?Entry {
320	320	switch (builtin.os.tag) {
321	321	.macos, .ios => return self.nextDarwin(),
322		.freebsd, .netbsd, .dragonfly => return self.nextBsd(),
	322	.freebsd, .netbsd, .dragonfly, .openbsd => return self.nextBsd(),
323	323	else => @compileError("unimplemented"),
324	324	}
325	325	}
...	...	@@ -615,7 +615,7 @@ pub const Dir = struct {
615	615
616	616	pub fn iterate(self: Dir) Iterator {
617	617	switch (builtin.os.tag) {
618		.macos, .ios, .freebsd, .netbsd, .dragonfly => return Iterator{
	618	.macos, .ios, .freebsd, .netbsd, .dragonfly, .openbsd => return Iterator{
619	619	.dir = self,
620	620	.seek = 0,
621	621	.index = 0,
...	...	@@ -1302,7 +1302,7 @@ pub const Dir = struct {
1302	1302	error.AccessDenied => \|e\| switch (builtin.os.tag) {
1303	1303	// non-Linux POSIX systems return EPERM when trying to delete a directory, so
1304	1304	// we need to handle that case specifically and translate the error
1305		.macos, .ios, .freebsd, .netbsd, .dragonfly => {
	1305	.macos, .ios, .freebsd, .netbsd, .dragonfly, .openbsd => {
1306	1306	// Don't follow symlinks to match unlinkat (which acts on symlinks rather than follows them)
1307	1307	const fstat = os.fstatatZ(self.fd, sub_path_c, os.AT_SYMLINK_NOFOLLOW) catch return e;
1308	1308	const is_dir = fstat.mode & os.S_IFMT == os.S_IFDIR;
...	...	@@ -2232,6 +2232,43 @@ pub fn selfExePath(out_buffer: []u8) SelfExePathError![]u8 {
2232	2232	// TODO could this slice from 0 to out_len instead?
2233	2233	return mem.spanZ(@ptrCast([*:0]u8, out_buffer));
2234	2234	},
	2235	.openbsd => {
	2236	// OpenBSD doesn't support getting the path of a running process, so try to guess it
	2237	if (os.argv.len == 0)
	2238	return error.FileNotFound;
	2239
	2240	const argv0 = mem.span(os.argv[0]);
	2241	if (mem.indexOf(u8, argv0, "/") != null) {
	2242	// argv[0] is a path (relative or absolute): use realpath(3) directly
	2243	var real_path_buf: [MAX_PATH_BYTES]u8 = undefined;
	2244	const real_path = try os.realpathZ(os.argv[0], &real_path_buf);
	2245	if (real_path.len > out_buffer.len)
	2246	return error.NameTooLong;
	2247	mem.copy(u8, out_buffer, real_path);
	2248	return out_buffer[0..real_path.len];
	2249	} else if (argv0.len != 0) {
	2250	// argv[0] is not empty (and not a path): search it inside PATH
	2251	const PATH = std.os.getenvZ("PATH") orelse return error.FileNotFound;
	2252	var path_it = mem.tokenize(PATH, &[_]u8{path.delimiter});
	2253	while (path_it.next()) \|a_path\| {
	2254	var resolved_path_buf: [MAX_PATH_BYTES]u8 = undefined;
	2255	const resolved_path = std.fmt.bufPrintZ(&resolved_path_buf, "{s}/{s}", .{
	2256	a_path,
	2257	os.argv[0],
	2258	}) catch continue;
	2259
	2260	var real_path_buf: [MAX_PATH_BYTES]u8 = undefined;
	2261	if (os.realpathZ(&resolved_path_buf, &real_path_buf)) \|real_path\| {
	2262	// found a file, and hope it is the right file
	2263	if (real_path.len > out_buffer.len)
	2264	return error.NameTooLong;
	2265	mem.copy(u8, out_buffer, real_path);
	2266	return out_buffer[0..real_path.len];
	2267	} else \|_\| continue;
	2268	}
	2269	}
	2270	return error.FileNotFound;
	2271	},
2235	2272	.windows => {
2236	2273	const utf16le_slice = selfExePathW();
2237	2274	// Trust that Windows gives us valid UTF-16LE.

lib/std/fs/get_app_data_dir.zig+1-1

...	...	@@ -49,7 +49,7 @@ pub fn getAppDataDir(allocator: *mem.Allocator, appname: []const u8) GetAppDataD
49	49	};
50	50	return fs.path.join(allocator, &[_][]const u8{ home_dir, "Library", "Application Support", appname });
51	51	},
52		.linux, .freebsd, .netbsd, .dragonfly => {
	52	.linux, .freebsd, .netbsd, .dragonfly, .openbsd => {
53	53	const home_dir = os.getenv("HOME") orelse {
54	54	// TODO look in /etc/passwd
55	55	return error.AppDataDirUnavailable;

lib/std/fs/watch.zig+4-4

...	...	@@ -49,7 +49,7 @@ pub fn Watch(comptime V: type) type {
49	49
50	50	const OsData = switch (builtin.os.tag) {
51	51	// TODO https://github.com/ziglang/zig/issues/3778
52		.macos, .freebsd, .netbsd, .dragonfly => KqOsData,
	52	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => KqOsData,
53	53	.linux => LinuxOsData,
54	54	.windows => WindowsOsData,
55	55
...	...	@@ -160,7 +160,7 @@ pub fn Watch(comptime V: type) type {
160	160	return self;
161	161	},
162	162
163		.macos, .freebsd, .netbsd, .dragonfly => {
	163	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => {
164	164	self.* = Self{
165	165	.allocator = allocator,
166	166	.channel = channel,
...	...	@@ -178,7 +178,7 @@ pub fn Watch(comptime V: type) type {
178	178	/// All addFile calls and removeFile calls must have completed.
179	179	pub fn deinit(self: *Self) void {
180	180	switch (builtin.os.tag) {
181		.macos, .freebsd, .netbsd, .dragonfly => {
	181	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => {
182	182	// TODO we need to cancel the frames before destroying the lock
183	183	self.os_data.table_lock.deinit();
184	184	var it = self.os_data.file_table.iterator();
...	...	@@ -229,7 +229,7 @@ pub fn Watch(comptime V: type) type {
229	229
230	230	pub fn addFile(self: *Self, file_path: []const u8, value: V) !?V {
231	231	switch (builtin.os.tag) {
232		.macos, .freebsd, .netbsd, .dragonfly => return addFileKEvent(self, file_path, value),
	232	.macos, .freebsd, .netbsd, .dragonfly, .openbsd => return addFileKEvent(self, file_path, value),
233	233	.linux => return addFileLinux(self, file_path, value),
234	234	.windows => return addFileWindows(self, file_path, value),
235	235	else => @compileError("Unsupported OS"),

lib/std/os.zig+5-2

...	...	@@ -33,6 +33,7 @@ pub const darwin = @import("os/darwin.zig");
33	33	pub const dragonfly = @import("os/dragonfly.zig");
34	34	pub const freebsd = @import("os/freebsd.zig");
35	35	pub const netbsd = @import("os/netbsd.zig");
	36	pub const openbsd = @import("os/openbsd.zig");
36	37	pub const linux = @import("os/linux.zig");
37	38	pub const uefi = @import("os/uefi.zig");
38	39	pub const wasi = @import("os/wasi.zig");
...	...	@@ -47,6 +48,7 @@ test "" {
47	48	_ = freebsd;
48	49	_ = linux;
49	50	_ = netbsd;
	51	_ = openbsd;
50	52	_ = uefi;
51	53	_ = wasi;
52	54	_ = windows;
...	...	@@ -66,6 +68,7 @@ else switch (builtin.os.tag) {
66	68	.freebsd => freebsd,
67	69	.linux => linux,
68	70	.netbsd => netbsd,
	71	.openbsd => openbsd,
69	72	.dragonfly => dragonfly,
70	73	.wasi => wasi,
71	74	.windows => windows,
...	...	@@ -161,8 +164,8 @@ pub fn getrandom(buffer: []u8) GetRandomError!void {
161	164	}
162	165	return;
163	166	}
164		if (builtin.os.tag == .netbsd) {
165		netbsd.arc4random_buf(buffer.ptr, buffer.len);
	167	if (builtin.os.tag == .netbsd or builtin.os.tag == .openbsd) {
	168	system.arc4random_buf(buffer.ptr, buffer.len);
166	169	return;
167	170	}
168	171	if (builtin.os.tag == .wasi) {

lib/std/os/bits.zig+1

...	...	@@ -17,6 +17,7 @@ pub usingnamespace switch (std.Target.current.os.tag) {
17	17	.freebsd => @import("bits/freebsd.zig"),
18	18	.linux => @import("bits/linux.zig"),
19	19	.netbsd => @import("bits/netbsd.zig"),
	20	.openbsd => @import("bits/openbsd.zig"),
20	21	.wasi => @import("bits/wasi.zig"),
21	22	.windows => @import("bits/windows.zig"),
22	23	else => struct {},

lib/std/os/bits/openbsd.zig created+1052

...	...	@@ -0,0 +1,1052 @@
	1	// SPDX-License-Identifier: MIT
	2	// Copyright (c) 2015-2020 Zig Contributors
	3	// This file is part of [zig](https://ziglang.org/), which is MIT licensed.
	4	// The MIT license requires this copyright notice to be included in all copies
	5	// and substantial portions of the software.
	6	const std = @import("../../std.zig");
	7	const builtin = std.builtin;
	8	const maxInt = std.math.maxInt;
	9
	10	pub const blkcnt_t = i64;
	11	pub const blksize_t = i32;
	12	pub const clock_t = i64;
	13	pub const dev_t = i32;
	14	pub const fd_t = c_int;
	15	pub const gid_t = u32;
	16	pub const ino_t = u64;
	17	pub const mode_t = u32;
	18	pub const nlink_t = u32;
	19	pub const off_t = i64;
	20	pub const pid_t = i32;
	21	pub const socklen_t = u32;
	22	pub const time_t = i64;
	23	pub const uid_t = u32;
	24
	25	/// Renamed from `kevent` to `Kevent` to avoid conflict with function name.
	26	pub const Kevent = extern struct {
	27	ident: usize,
	28	filter: c_short,
	29	flags: u16,
	30	fflags: c_uint,
	31	data: i64,
	32	udata: usize,
	33	};
	34
	35	pub const dl_phdr_info = extern struct {
	36	dlpi_addr: usize,
	37	dlpi_name: ?[*:0]const u8,
	38	dlpi_phdr: [*]std.elf.Phdr,
	39	dlpi_phnum: u16,
	40	};
	41
	42	pub const Flock = extern struct {
	43	l_start: off_t,
	44	l_len: off_t,
	45	l_pid: pid_t,
	46	l_type: i16,
	47	l_whence: i16,
	48	};
	49
	50	pub const addrinfo = extern struct {
	51	flags: i32,
	52	family: i32,
	53	socktype: i32,
	54	protocol: i32,
	55	addrlen: socklen_t,
	56	canonname: ?[*:0]u8,
	57	addr: ?*sockaddr,
	58	next: ?*addrinfo,
	59	};
	60
	61	pub const EAI = extern enum(c_int) {
	62	/// address family for hostname not supported
	63	ADDRFAMILY = -9,
	64
	65	/// name could not be resolved at this time
	66	AGAIN = -3,
	67
	68	/// flags parameter had an invalid value
	69	BADFLAGS = -1,
	70
	71	/// non-recoverable failure in name resolution
	72	FAIL = -4,
	73
	74	/// address family not recognized
	75	FAMILY = -6,
	76
	77	/// memory allocation failure
	78	MEMORY = -10,
	79
	80	/// no address associated with hostname
	81	NODATA = -5,
	82
	83	/// name does not resolve
	84	NONAME = -2,
	85
	86	/// service not recognized for socket type
	87	SERVICE = -8,
	88
	89	/// intended socket type was not recognized
	90	SOCKTYPE = -7,
	91
	92	/// system error returned in errno
	93	SYSTEM = -11,
	94
	95	/// invalid value for hints
	96	BADHINTS = -12,
	97
	98	/// resolved protocol is unknown
	99	PROTOCOL = -13,
	100
	101	/// argument buffer overflow
	102	OVERFLOW = -14,
	103
	104	_,
	105	};
	106
	107	pub const EAI_MAX = 15;
	108
	109	pub const msghdr = extern struct {
	110	/// optional address
	111	msg_name: ?*sockaddr,
	112
	113	/// size of address
	114	msg_namelen: socklen_t,
	115
	116	/// scatter/gather array
	117	msg_iov: [*]iovec,
	118
	119	/// # elements in msg_iov
	120	msg_iovlen: i32,
	121
	122	/// ancillary data
	123	msg_control: ?*c_void,
	124
	125	/// ancillary data buffer len
	126	msg_controllen: socklen_t,
	127
	128	/// flags on received message
	129	msg_flags: i32,
	130	};
	131
	132	pub const msghdr_const = extern struct {
	133	/// optional address
	134	msg_name: ?*const sockaddr,
	135
	136	/// size of address
	137	msg_namelen: socklen_t,
	138
	139	/// scatter/gather array
	140	msg_iov: [*]iovec_const,
	141
	142	/// # elements in msg_iov
	143	msg_iovlen: i32,
	144
	145	/// ancillary data
	146	msg_control: ?*c_void,
	147
	148	/// ancillary data buffer len
	149	msg_controllen: socklen_t,
	150
	151	/// flags on received message
	152	msg_flags: i32,
	153	};
	154
	155	/// Renamed to Stat to not conflict with the stat function.
	156	/// atime, mtime, and ctime have functions to return `timespec`,
	157	/// because although this is a POSIX API, the layout and names of
	158	/// the structs are inconsistent across operating systems, and
	159	/// in C, macros are used to hide the differences. Here we use
	160	/// methods to accomplish this.
	161	pub const Stat = extern struct {
	162	mode: mode_t,
	163	dev: dev_t,
	164	ino: ino_t,
	165	nlink: nlink_t,
	166	uid: uid_t,
	167	gid: gid_t,
	168	rdev: dev_t,
	169	atim: timespec,
	170	mtim: timespec,
	171	ctim: timespec,
	172	size: off_t,
	173	blocks: blkcnt_t,
	174	blksize: blksize_t,
	175	flags: u32,
	176	gen: u32,
	177	birthtim: timespec,
	178
	179	pub fn atime(self: Stat) timespec {
	180	return self.atim;
	181	}
	182
	183	pub fn mtime(self: Stat) timespec {
	184	return self.mtim;
	185	}
	186
	187	pub fn ctime(self: Stat) timespec {
	188	return self.ctim;
	189	}
	190	};
	191
	192	pub const timespec = extern struct {
	193	tv_sec: time_t,
	194	tv_nsec: isize,
	195	};
	196
	197	pub const MAXNAMLEN = 255;
	198
	199	pub const dirent = extern struct {
	200	d_fileno: ino_t,
	201	d_off: off_t,
	202	d_reclen: u16,
	203	d_type: u8,
	204	d_namlen: u8,
	205	__d_padding: [4]u8,
	206	d_name: [MAXNAMLEN + 1]u8,
	207
	208	pub fn reclen(self: dirent) u16 {
	209	return self.d_reclen;
	210	}
	211	};
	212
	213	pub const in_port_t = u16;
	214	pub const sa_family_t = u8;
	215
	216	pub const sockaddr = extern struct {
	217	/// total length
	218	len: u8,
	219
	220	/// address family
	221	family: sa_family_t,
	222
	223	/// actually longer; address value
	224	data: [14]u8,
	225	};
	226
	227	pub const sockaddr_in = extern struct {
	228	len: u8 = @sizeOf(sockaddr_in),
	229	family: sa_family_t = AF_INET,
	230	port: in_port_t,
	231	addr: u32,
	232	zero: [8]u8 = [8]u8{ 0, 0, 0, 0, 0, 0, 0, 0 },
	233	};
	234
	235	pub const sockaddr_in6 = extern struct {
	236	len: u8 = @sizeOf(sockaddr_in6),
	237	family: sa_family_t = AF_INET6,
	238	port: in_port_t,
	239	flowinfo: u32,
	240	addr: [16]u8,
	241	scope_id: u32,
	242	};
	243
	244	/// Definitions for UNIX IPC domain.
	245	pub const sockaddr_un = extern struct {
	246	/// total sockaddr length
	247	len: u8 = @sizeOf(sockaddr_un),
	248
	249	/// AF_LOCAL
	250	family: sa_family_t = AF_LOCAL,
	251
	252	/// path name
	253	path: [104]u8,
	254	};
	255
	256	/// get address to use bind()
	257	pub const AI_PASSIVE = 1;
	258
	259	/// fill ai_canonname
	260	pub const AI_CANONNAME = 2;
	261
	262	/// prevent host name resolution
	263	pub const AI_NUMERICHOST = 4;
	264
	265	/// prevent service name resolution
	266	pub const AI_NUMERICSERV = 16;
	267
	268	/// only if any address is assigned
	269	pub const AI_ADDRCONFIG = 64;
	270
	271	pub const CTL_KERN = 1;
	272	pub const CTL_DEBUG = 5;
	273
	274	pub const KERN_PROC_ARGS = 55;
	275	pub const KERN_PROC_ARGV = 1;
	276
	277	pub const PATH_MAX = 1024;
	278
	279	pub const STDIN_FILENO = 0;
	280	pub const STDOUT_FILENO = 1;
	281	pub const STDERR_FILENO = 2;
	282
	283	pub const PROT_NONE = 0;
	284	pub const PROT_READ = 1;
	285	pub const PROT_WRITE = 2;
	286	pub const PROT_EXEC = 4;
	287
	288	pub const CLOCK_REALTIME = 0;
	289	pub const CLOCK_PROCESS_CPUTIME_ID = 2;
	290	pub const CLOCK_MONOTONIC = 3;
	291	pub const CLOCK_THREAD_CPUTIME_ID = 4;
	292
	293	pub const MAP_FAILED = @intToPtr(*c_void, maxInt(usize));
	294	pub const MAP_SHARED = 0x0001;
	295	pub const MAP_PRIVATE = 0x0002;
	296	pub const MAP_FIXED = 0x0010;
	297	pub const MAP_RENAME = 0;
	298	pub const MAP_NORESERVE = 0;
	299	pub const MAP_INHERIT = 0;
	300	pub const MAP_HASSEMAPHORE = 0;
	301	pub const MAP_TRYFIXED = 0;
	302
	303	pub const MAP_FILE = 0;
	304	pub const MAP_ANON = 0x1000;
	305	pub const MAP_ANONYMOUS = MAP_ANON;
	306	pub const MAP_STACK = 0x4000;
	307	pub const MAP_CONCEAL = 0x8000;
	308
	309	pub const WNOHANG = 1;
	310	pub const WUNTRACED = 2;
	311	pub const WCONTINUED = 8;
	312
	313	pub const SA_ONSTACK = 0x0001;
	314	pub const SA_RESTART = 0x0002;
	315	pub const SA_RESETHAND = 0x0004;
	316	pub const SA_NOCLDSTOP = 0x0008;
	317	pub const SA_NODEFER = 0x0010;
	318	pub const SA_NOCLDWAIT = 0x0020;
	319	pub const SA_SIGINFO = 0x0040;
	320
	321	pub const SIGHUP = 1;
	322	pub const SIGINT = 2;
	323	pub const SIGQUIT = 3;
	324	pub const SIGILL = 4;
	325	pub const SIGTRAP = 5;
	326	pub const SIGABRT = 6;
	327	pub const SIGIOT = SIGABRT;
	328	pub const SIGEMT = 7;
	329	pub const SIGFPE = 8;
	330	pub const SIGKILL = 9;
	331	pub const SIGBUS = 10;
	332	pub const SIGSEGV = 11;
	333	pub const SIGSYS = 12;
	334	pub const SIGPIPE = 13;
	335	pub const SIGALRM = 14;
	336	pub const SIGTERM = 15;
	337	pub const SIGURG = 16;
	338	pub const SIGSTOP = 17;
	339	pub const SIGTSTP = 18;
	340	pub const SIGCONT = 19;
	341	pub const SIGCHLD = 20;
	342	pub const SIGTTIN = 21;
	343	pub const SIGTTOU = 22;
	344	pub const SIGIO = 23;
	345	pub const SIGXCPU = 24;
	346	pub const SIGXFSZ = 25;
	347	pub const SIGVTALRM = 26;
	348	pub const SIGPROF = 27;
	349	pub const SIGWINCH = 28;
	350	pub const SIGINFO = 29;
	351	pub const SIGUSR1 = 30;
	352	pub const SIGUSR2 = 31;
	353	pub const SIGPWR = 32;
	354
	355	// access function
	356	pub const F_OK = 0; // test for existence of file
	357	pub const X_OK = 1; // test for execute or search permission
	358	pub const W_OK = 2; // test for write permission
	359	pub const R_OK = 4; // test for read permission
	360
	361	/// open for reading only
	362	pub const O_RDONLY = 0x00000000;
	363
	364	/// open for writing only
	365	pub const O_WRONLY = 0x00000001;
	366
	367	/// open for reading and writing
	368	pub const O_RDWR = 0x00000002;
	369
	370	/// mask for above modes
	371	pub const O_ACCMODE = 0x00000003;
	372
	373	/// no delay
	374	pub const O_NONBLOCK = 0x00000004;
	375
	376	/// set append mode
	377	pub const O_APPEND = 0x00000008;
	378
	379	/// open with shared file lock
	380	pub const O_SHLOCK = 0x00000010;
	381
	382	/// open with exclusive file lock
	383	pub const O_EXLOCK = 0x00000020;
	384
	385	/// signal pgrp when data ready
	386	pub const O_ASYNC = 0x00000040;
	387
	388	/// synchronous writes
	389	pub const O_SYNC = 0x00000080;
	390
	391	/// don't follow symlinks on the last
	392	pub const O_NOFOLLOW = 0x00000100;
	393
	394	/// create if nonexistent
	395	pub const O_CREAT = 0x00000200;
	396
	397	/// truncate to zero length
	398	pub const O_TRUNC = 0x00000400;
	399
	400	/// error if already exists
	401	pub const O_EXCL = 0x00000800;
	402
	403	/// don't assign controlling terminal
	404	pub const O_NOCTTY = 0x00008000;
	405
	406	/// write: I/O data completion
	407	pub const O_DSYNC = O_SYNC;
	408
	409	/// read: I/O completion as for write
	410	pub const O_RSYNC = O_SYNC;
	411
	412	/// fail if not a directory
	413	pub const O_DIRECTORY = 0x20000;
	414
	415	/// set close on exec
	416	pub const O_CLOEXEC = 0x10000;
	417
	418	pub const F_DUPFD = 0;
	419	pub const F_GETFD = 1;
	420	pub const F_SETFD = 2;
	421	pub const F_GETFL = 3;
	422	pub const F_SETFL = 4;
	423
	424	pub const F_GETOWN = 5;
	425	pub const F_SETOWN = 6;
	426
	427	pub const F_GETLK = 7;
	428	pub const F_SETLK = 8;
	429	pub const F_SETLKW = 9;
	430
	431	pub const F_RDLCK = 1;
	432	pub const F_UNLCK = 2;
	433	pub const F_WRLCK = 3;
	434
	435	pub const LOCK_SH = 0x01;
	436	pub const LOCK_EX = 0x02;
	437	pub const LOCK_NB = 0x04;
	438	pub const LOCK_UN = 0x08;
	439
	440	pub const FD_CLOEXEC = 1;
	441
	442	pub const SEEK_SET = 0;
	443	pub const SEEK_CUR = 1;
	444	pub const SEEK_END = 2;
	445
	446	pub const SIG_BLOCK = 1;
	447	pub const SIG_UNBLOCK = 2;
	448	pub const SIG_SETMASK = 3;
	449
	450	pub const SOCK_STREAM = 1;
	451	pub const SOCK_DGRAM = 2;
	452	pub const SOCK_RAW = 3;
	453	pub const SOCK_RDM = 4;
	454	pub const SOCK_SEQPACKET = 5;
	455
	456	pub const SOCK_CLOEXEC = 0x8000;
	457	pub const SOCK_NONBLOCK = 0x4000;
	458
	459	pub const PF_UNSPEC = AF_UNSPEC;
	460	pub const PF_LOCAL = AF_LOCAL;
	461	pub const PF_UNIX = AF_UNIX;
	462	pub const PF_INET = AF_INET;
	463	pub const PF_APPLETALK = AF_APPLETALK;
	464	pub const PF_INET6 = AF_INET6;
	465	pub const PF_DECnet = AF_DECnet;
	466	pub const PF_KEY = AF_KEY;
	467	pub const PF_ROUTE = AF_ROUTE;
	468	pub const PF_SNA = AF_SNA;
	469	pub const PF_MPLS = AF_MPLS;
	470	pub const PF_BLUETOOTH = AF_BLUETOOTH;
	471	pub const PF_ISDN = AF_ISDN;
	472	pub const PF_MAX = AF_MAX;
	473
	474	pub const AF_UNSPEC = 0;
	475	pub const AF_UNIX = 1;
	476	pub const AF_LOCAL = AF_UNIX;
	477	pub const AF_INET = 2;
	478	pub const AF_APPLETALK = 16;
	479	pub const AF_INET6 = 24;
	480	pub const AF_KEY = 30;
	481	pub const AF_ROUTE = 17;
	482	pub const AF_SNA = 11;
	483	pub const AF_MPLS = 33;
	484	pub const AF_BLUETOOTH = 32;
	485	pub const AF_ISDN = 26;
	486	pub const AF_MAX = 36;
	487
	488	pub const DT_UNKNOWN = 0;
	489	pub const DT_FIFO = 1;
	490	pub const DT_CHR = 2;
	491	pub const DT_DIR = 4;
	492	pub const DT_BLK = 6;
	493	pub const DT_REG = 8;
	494	pub const DT_LNK = 10;
	495	pub const DT_SOCK = 12;
	496	pub const DT_WHT = 14; // XXX
	497
	498	/// add event to kq (implies enable)
	499	pub const EV_ADD = 0x0001;
	500
	501	/// delete event from kq
	502	pub const EV_DELETE = 0x0002;
	503
	504	/// enable event
	505	pub const EV_ENABLE = 0x0004;
	506
	507	/// disable event (not reported)
	508	pub const EV_DISABLE = 0x0008;
	509
	510	/// only report one occurrence
	511	pub const EV_ONESHOT = 0x0010;
	512
	513	/// clear event state after reporting
	514	pub const EV_CLEAR = 0x0020;
	515
	516	/// force immediate event output
	517	/// ... with or without EV_ERROR
	518	/// ... use KEVENT_FLAG_ERROR_EVENTS
	519	/// on syscalls supporting flags
	520	pub const EV_RECEIPT = 0x0040;
	521
	522	/// disable event after reporting
	523	pub const EV_DISPATCH = 0x0080;
	524
	525	pub const EVFILT_READ = -1;
	526	pub const EVFILT_WRITE = -2;
	527
	528	/// attached to aio requests
	529	pub const EVFILT_AIO = -3;
	530
	531	/// attached to vnodes
	532	pub const EVFILT_VNODE = -4;
	533
	534	/// attached to struct proc
	535	pub const EVFILT_PROC = -5;
	536
	537	/// attached to struct proc
	538	pub const EVFILT_SIGNAL = -6;
	539
	540	/// timers
	541	pub const EVFILT_TIMER = -7;
	542
	543	/// devices
	544	pub const EVFILT_DEVICE = -8;
	545
	546	/// low water mark
	547	pub const NOTE_LOWAT = 0x0001;
	548
	549	/// return on EOF
	550	pub const NOTE_EOF = 0x0002;
	551
	552	/// vnode was removed
	553	pub const NOTE_DELETE = 0x0001;
	554
	555	/// data contents changed
	556	pub const NOTE_WRITE = 0x0002;
	557
	558	/// size increased
	559	pub const NOTE_EXTEND = 0x0004;
	560
	561	/// attributes changed
	562	pub const NOTE_ATTRIB = 0x0008;
	563
	564	/// link count changed
	565	pub const NOTE_LINK = 0x0010;
	566
	567	/// vnode was renamed
	568	pub const NOTE_RENAME = 0x0020;
	569
	570	/// vnode access was revoked
	571	pub const NOTE_REVOKE = 0x0040;
	572
	573	/// process exited
	574	pub const NOTE_EXIT = 0x80000000;
	575
	576	/// process forked
	577	pub const NOTE_FORK = 0x40000000;
	578
	579	/// process exec'd
	580	pub const NOTE_EXEC = 0x20000000;
	581
	582	/// mask for signal & exit status
	583	pub const NOTE_PDATAMASK = 0x000fffff;
	584	pub const NOTE_PCTRLMASK = 0xf0000000;
	585
	586	pub const TIOCCBRK = 0x2000747a;
	587	pub const TIOCCDTR = 0x20007478;
	588	pub const TIOCCONS = 0x80047462;
	589	pub const TIOCDCDTIMESTAMP = 0x40107458;
	590	pub const TIOCDRAIN = 0x2000745e;
	591	pub const TIOCEXCL = 0x2000740d;
	592	pub const TIOCEXT = 0x80047460;
	593	pub const TIOCFLAG_CDTRCTS = 0x10;
	594	pub const TIOCFLAG_CLOCAL = 0x2;
	595	pub const TIOCFLAG_CRTSCTS = 0x4;
	596	pub const TIOCFLAG_MDMBUF = 0x8;
	597	pub const TIOCFLAG_SOFTCAR = 0x1;
	598	pub const TIOCFLUSH = 0x80047410;
	599	pub const TIOCGETA = 0x402c7413;
	600	pub const TIOCGETD = 0x4004741a;
	601	pub const TIOCGFLAGS = 0x4004745d;
	602	pub const TIOCGLINED = 0x40207442;
	603	pub const TIOCGPGRP = 0x40047477;
	604	pub const TIOCGQSIZE = 0x40047481;
	605	pub const TIOCGRANTPT = 0x20007447;
	606	pub const TIOCGSID = 0x40047463;
	607	pub const TIOCGSIZE = 0x40087468;
	608	pub const TIOCGWINSZ = 0x40087468;
	609	pub const TIOCMBIC = 0x8004746b;
	610	pub const TIOCMBIS = 0x8004746c;
	611	pub const TIOCMGET = 0x4004746a;
	612	pub const TIOCMSET = 0x8004746d;
	613	pub const TIOCM_CAR = 0x40;
	614	pub const TIOCM_CD = 0x40;
	615	pub const TIOCM_CTS = 0x20;
	616	pub const TIOCM_DSR = 0x100;
	617	pub const TIOCM_DTR = 0x2;
	618	pub const TIOCM_LE = 0x1;
	619	pub const TIOCM_RI = 0x80;
	620	pub const TIOCM_RNG = 0x80;
	621	pub const TIOCM_RTS = 0x4;
	622	pub const TIOCM_SR = 0x10;
	623	pub const TIOCM_ST = 0x8;
	624	pub const TIOCNOTTY = 0x20007471;
	625	pub const TIOCNXCL = 0x2000740e;
	626	pub const TIOCOUTQ = 0x40047473;
	627	pub const TIOCPKT = 0x80047470;
	628	pub const TIOCPKT_DATA = 0x0;
	629	pub const TIOCPKT_DOSTOP = 0x20;
	630	pub const TIOCPKT_FLUSHREAD = 0x1;
	631	pub const TIOCPKT_FLUSHWRITE = 0x2;
	632	pub const TIOCPKT_IOCTL = 0x40;
	633	pub const TIOCPKT_NOSTOP = 0x10;
	634	pub const TIOCPKT_START = 0x8;
	635	pub const TIOCPKT_STOP = 0x4;
	636	pub const TIOCPTMGET = 0x40287446;
	637	pub const TIOCPTSNAME = 0x40287448;
	638	pub const TIOCRCVFRAME = 0x80087445;
	639	pub const TIOCREMOTE = 0x80047469;
	640	pub const TIOCSBRK = 0x2000747b;
	641	pub const TIOCSCTTY = 0x20007461;
	642	pub const TIOCSDTR = 0x20007479;
	643	pub const TIOCSETA = 0x802c7414;
	644	pub const TIOCSETAF = 0x802c7416;
	645	pub const TIOCSETAW = 0x802c7415;
	646	pub const TIOCSETD = 0x8004741b;
	647	pub const TIOCSFLAGS = 0x8004745c;
	648	pub const TIOCSIG = 0x2000745f;
	649	pub const TIOCSLINED = 0x80207443;
	650	pub const TIOCSPGRP = 0x80047476;
	651	pub const TIOCSQSIZE = 0x80047480;
	652	pub const TIOCSSIZE = 0x80087467;
	653	pub const TIOCSTART = 0x2000746e;
	654	pub const TIOCSTAT = 0x80047465;
	655	pub const TIOCSTI = 0x80017472;
	656	pub const TIOCSTOP = 0x2000746f;
	657	pub const TIOCSWINSZ = 0x80087467;
	658	pub const TIOCUCNTL = 0x80047466;
	659	pub const TIOCXMTFRAME = 0x80087444;
	660
	661	pub fn WEXITSTATUS(s: u32) u32 {
	662	return (s >> 8) & 0xff;
	663	}
	664	pub fn WTERMSIG(s: u32) u32 {
	665	return (s & 0x7f);
	666	}
	667	pub fn WSTOPSIG(s: u32) u32 {
	668	return WEXITSTATUS(s);
	669	}
	670	pub fn WIFEXITED(s: u32) bool {
	671	return WTERMSIG(s) == 0;
	672	}
	673
	674	pub fn WIFCONTINUED(s: u32) bool {
	675	return ((s & 0o177777) == 0o177777);
	676	}
	677
	678	pub fn WIFSTOPPED(s: u32) bool {
	679	return (s & 0xff == 0o177);
	680	}
	681
	682	pub fn WIFSIGNALED(s: u32) bool {
	683	return (((s) & 0o177) != 0o177) and (((s) & 0o177) != 0);
	684	}
	685
	686	pub const winsize = extern struct {
	687	ws_row: u16,
	688	ws_col: u16,
	689	ws_xpixel: u16,
	690	ws_ypixel: u16,
	691	};
	692
	693	const NSIG = 33;
	694
	695	pub const SIG_ERR = @intToPtr(?Sigaction.sigaction_fn, maxInt(usize));
	696	pub const SIG_DFL = @intToPtr(?Sigaction.sigaction_fn, 0);
	697	pub const SIG_IGN = @intToPtr(?Sigaction.sigaction_fn, 1);
	698
	699	/// Renamed from `sigaction` to `Sigaction` to avoid conflict with the syscall.
	700	pub const Sigaction = extern struct {
	701	pub const sigaction_fn = fn (c_int, siginfo_t, ?c_void) callconv(.C) void;
	702	/// signal handler
	703	sigaction: ?sigaction_fn,
	704	/// signal mask to apply
	705	mask: sigset_t,
	706	/// signal options
	707	flags: c_int,
	708	};
	709
	710	pub const sigval = extern union {
	711	int: c_int,
	712	ptr: ?*c_void,
	713	};
	714
	715	pub const siginfo_t = extern union {
	716	pad: [128]u8,
	717	info: _ksiginfo,
	718	};
	719
	720	pub const _ksiginfo = extern struct {
	721	signo: c_int,
	722	code: c_int,
	723	errno: c_int,
	724	data: extern union {
	725	proc: extern struct {
	726	pid: pid_t,
	727	uid: uid_t,
	728	value: sigval,
	729	utime: clock_t,
	730	stime: clock_t,
	731	status: c_int,
	732	},
	733	fault: extern struct {
	734	addr: ?*c_void,
	735	trapno: c_int,
	736	},
	737	} align(@sizeOf(usize)),
	738	};
	739
	740	pub const sigset_t = c_uint;
	741	pub const empty_sigset = sigset_t(0);
	742
	743	pub const EPERM = 1; // Operation not permitted
	744	pub const ENOENT = 2; // No such file or directory
	745	pub const ESRCH = 3; // No such process
	746	pub const EINTR = 4; // Interrupted system call
	747	pub const EIO = 5; // Input/output error
	748	pub const ENXIO = 6; // Device not configured
	749	pub const E2BIG = 7; // Argument list too long
	750	pub const ENOEXEC = 8; // Exec format error
	751	pub const EBADF = 9; // Bad file descriptor
	752	pub const ECHILD = 10; // No child processes
	753	pub const EDEADLK = 11; // Resource deadlock avoided
	754	// 11 was EAGAIN
	755	pub const ENOMEM = 12; // Cannot allocate memory
	756	pub const EACCES = 13; // Permission denied
	757	pub const EFAULT = 14; // Bad address
	758	pub const ENOTBLK = 15; // Block device required
	759	pub const EBUSY = 16; // Device busy
	760	pub const EEXIST = 17; // File exists
	761	pub const EXDEV = 18; // Cross-device link
	762	pub const ENODEV = 19; // Operation not supported by device
	763	pub const ENOTDIR = 20; // Not a directory
	764	pub const EISDIR = 21; // Is a directory
	765	pub const EINVAL = 22; // Invalid argument
	766	pub const ENFILE = 23; // Too many open files in system
	767	pub const EMFILE = 24; // Too many open files
	768	pub const ENOTTY = 25; // Inappropriate ioctl for device
	769	pub const ETXTBSY = 26; // Text file busy
	770	pub const EFBIG = 27; // File too large
	771	pub const ENOSPC = 28; // No space left on device
	772	pub const ESPIPE = 29; // Illegal seek
	773	pub const EROFS = 30; // Read-only file system
	774	pub const EMLINK = 31; // Too many links
	775	pub const EPIPE = 32; // Broken pipe
	776
	777	// math software
	778	pub const EDOM = 33; // Numerical argument out of domain
	779	pub const ERANGE = 34; // Result too large or too small
	780
	781	// non-blocking and interrupt i/o
	782	pub const EAGAIN = 35; // Resource temporarily unavailable
	783	pub const EWOULDBLOCK = EAGAIN; // Operation would block
	784	pub const EINPROGRESS = 36; // Operation now in progress
	785	pub const EALREADY = 37; // Operation already in progress
	786
	787	// ipc/network software -- argument errors
	788	pub const ENOTSOCK = 38; // Socket operation on non-socket
	789	pub const EDESTADDRREQ = 39; // Destination address required
	790	pub const EMSGSIZE = 40; // Message too long
	791	pub const EPROTOTYPE = 41; // Protocol wrong type for socket
	792	pub const ENOPROTOOPT = 42; // Protocol option not available
	793	pub const EPROTONOSUPPORT = 43; // Protocol not supported
	794	pub const ESOCKTNOSUPPORT = 44; // Socket type not supported
	795	pub const EOPNOTSUPP = 45; // Operation not supported
	796	pub const EPFNOSUPPORT = 46; // Protocol family not supported
	797	pub const EAFNOSUPPORT = 47; // Address family not supported by protocol family
	798	pub const EADDRINUSE = 48; // Address already in use
	799	pub const EADDRNOTAVAIL = 49; // Can't assign requested address
	800
	801	// ipc/network software -- operational errors
	802	pub const ENETDOWN = 50; // Network is down
	803	pub const ENETUNREACH = 51; // Network is unreachable
	804	pub const ENETRESET = 52; // Network dropped connection on reset
	805	pub const ECONNABORTED = 53; // Software caused connection abort
	806	pub const ECONNRESET = 54; // Connection reset by peer
	807	pub const ENOBUFS = 55; // No buffer space available
	808	pub const EISCONN = 56; // Socket is already connected
	809	pub const ENOTCONN = 57; // Socket is not connected
	810	pub const ESHUTDOWN = 58; // Can't send after socket shutdown
	811	pub const ETOOMANYREFS = 59; // Too many references: can't splice
	812	pub const ETIMEDOUT = 60; // Operation timed out
	813	pub const ECONNREFUSED = 61; // Connection refused
	814
	815	pub const ELOOP = 62; // Too many levels of symbolic links
	816	pub const ENAMETOOLONG = 63; // File name too long
	817
	818	// should be rearranged
	819	pub const EHOSTDOWN = 64; // Host is down
	820	pub const EHOSTUNREACH = 65; // No route to host
	821	pub const ENOTEMPTY = 66; // Directory not empty
	822
	823	// quotas & mush
	824	pub const EPROCLIM = 67; // Too many processes
	825	pub const EUSERS = 68; // Too many users
	826	pub const EDQUOT = 69; // Disc quota exceeded
	827
	828	// Network File System
	829	pub const ESTALE = 70; // Stale NFS file handle
	830	pub const EREMOTE = 71; // Too many levels of remote in path
	831	pub const EBADRPC = 72; // RPC struct is bad
	832	pub const ERPCMISMATCH = 73; // RPC version wrong
	833	pub const EPROGUNAVAIL = 74; // RPC prog. not avail
	834	pub const EPROGMISMATCH = 75; // Program version wrong
	835	pub const EPROCUNAVAIL = 76; // Bad procedure for program
	836
	837	pub const ENOLCK = 77; // No locks available
	838	pub const ENOSYS = 78; // Function not implemented
	839
	840	pub const EFTYPE = 79; // Inappropriate file type or format
	841	pub const EAUTH = 80; // Authentication error
	842	pub const ENEEDAUTH = 81; // Need authenticator
	843	pub const EIPSEC = 82; // IPsec processing failure
	844	pub const ENOATTR = 83; // Attribute not found
	845
	846	// Wide/multibyte-character handling, ISO/IEC 9899/AMD1:1995
	847	pub const EILSEQ = 84; // Illegal byte sequence
	848
	849	pub const ENOMEDIUM = 85; // No medium found
	850	pub const EMEDIUMTYPE = 86; // Wrong medium type
	851	pub const EOVERFLOW = 87; // Value too large to be stored in data type
	852	pub const ECANCELED = 88; // Operation canceled
	853	pub const EIDRM = 89; // Identifier removed
	854	pub const ENOMSG = 90; // No message of desired type
	855	pub const ENOTSUP = 91; // Not supported
	856	pub const EBADMSG = 92; // Bad or Corrupt message
	857	pub const ENOTRECOVERABLE = 93; // State not recoverable
	858	pub const EOWNERDEAD = 94; // Previous owner died
	859	pub const EPROTO = 95; // Protocol error
	860
	861	pub const ELAST = 95; // Must equal largest errno
	862
	863	const _MAX_PAGE_SHIFT = switch (builtin.arch) {
	864	.i386 => 12,
	865	.sparcv9 => 13,
	866	};
	867	pub const MINSIGSTKSZ = 1 << _MAX_PAGE_SHIFT;
	868	pub const SIGSTKSZ = MINSIGSTKSZ + (1 << _MAX_PAGE_SHIFT) * 4;
	869
	870	pub const SS_ONSTACK = 0x0001;
	871	pub const SS_DISABLE = 0x0004;
	872
	873	pub const stack_t = extern struct {
	874	ss_sp: [*]u8,
	875	ss_size: usize,
	876	ss_flags: c_int,
	877	};
	878
	879	pub const S_IFMT = 0o170000;
	880
	881	pub const S_IFIFO = 0o010000;
	882	pub const S_IFCHR = 0o020000;
	883	pub const S_IFDIR = 0o040000;
	884	pub const S_IFBLK = 0o060000;
	885	pub const S_IFREG = 0o100000;
	886	pub const S_IFLNK = 0o120000;
	887	pub const S_IFSOCK = 0o140000;
	888
	889	pub const S_ISUID = 0o4000;
	890	pub const S_ISGID = 0o2000;
	891	pub const S_ISVTX = 0o1000;
	892	pub const S_IRWXU = 0o700;
	893	pub const S_IRUSR = 0o400;
	894	pub const S_IWUSR = 0o200;
	895	pub const S_IXUSR = 0o100;
	896	pub const S_IRWXG = 0o070;
	897	pub const S_IRGRP = 0o040;
	898	pub const S_IWGRP = 0o020;
	899	pub const S_IXGRP = 0o010;
	900	pub const S_IRWXO = 0o007;
	901	pub const S_IROTH = 0o004;
	902	pub const S_IWOTH = 0o002;
	903	pub const S_IXOTH = 0o001;
	904
	905	pub fn S_ISFIFO(m: u32) bool {
	906	return m & S_IFMT == S_IFIFO;
	907	}
	908
	909	pub fn S_ISCHR(m: u32) bool {
	910	return m & S_IFMT == S_IFCHR;
	911	}
	912
	913	pub fn S_ISDIR(m: u32) bool {
	914	return m & S_IFMT == S_IFDIR;
	915	}
	916
	917	pub fn S_ISBLK(m: u32) bool {
	918	return m & S_IFMT == S_IFBLK;
	919	}
	920
	921	pub fn S_ISREG(m: u32) bool {
	922	return m & S_IFMT == S_IFREG;
	923	}
	924
	925	pub fn S_ISLNK(m: u32) bool {
	926	return m & S_IFMT == S_IFLNK;
	927	}
	928
	929	pub fn S_ISSOCK(m: u32) bool {
	930	return m & S_IFMT == S_IFSOCK;
	931	}
	932
	933	/// Magic value that specify the use of the current working directory
	934	/// to determine the target of relative file paths in the openat() and
	935	/// similar syscalls.
	936	pub const AT_FDCWD = -100;
	937
	938	/// Check access using effective user and group ID
	939	pub const AT_EACCESS = 0x01;
	940
	941	/// Do not follow symbolic links
	942	pub const AT_SYMLINK_NOFOLLOW = 0x02;
	943
	944	/// Follow symbolic link
	945	pub const AT_SYMLINK_FOLLOW = 0x04;
	946
	947	/// Remove directory instead of file
	948	pub const AT_REMOVEDIR = 0x08;
	949
	950	pub const HOST_NAME_MAX = 255;
	951
	952	/// dummy for IP
	953	pub const IPPROTO_IP = 0;
	954
	955	/// IP6 hop-by-hop options
	956	pub const IPPROTO_HOPOPTS = IPPROTO_IP;
	957
	958	/// control message protocol
	959	pub const IPPROTO_ICMP = 1;
	960
	961	/// group mgmt protocol
	962	pub const IPPROTO_IGMP = 2;
	963
	964	/// gateway^2 (deprecated)
	965	pub const IPPROTO_GGP = 3;
	966
	967	/// IP header
	968	pub const IPPROTO_IPV4 = IPPROTO_IPIP;
	969
	970	/// IP inside IP
	971	pub const IPPROTO_IPIP = 4;
	972
	973	/// tcp
	974	pub const IPPROTO_TCP = 6;
	975
	976	/// exterior gateway protocol
	977	pub const IPPROTO_EGP = 8;
	978
	979	/// pup
	980	pub const IPPROTO_PUP = 12;
	981
	982	/// user datagram protocol
	983	pub const IPPROTO_UDP = 17;
	984
	985	/// xns idp
	986	pub const IPPROTO_IDP = 22;
	987
	988	/// tp-4 w/ class negotiation
	989	pub const IPPROTO_TP = 29;
	990
	991	/// IP6 header
	992	pub const IPPROTO_IPV6 = 41;
	993
	994	/// IP6 routing header
	995	pub const IPPROTO_ROUTING = 43;
	996
	997	/// IP6 fragmentation header
	998	pub const IPPROTO_FRAGMENT = 44;
	999
	1000	/// resource reservation
	1001	pub const IPPROTO_RSVP = 46;
	1002
	1003	/// GRE encaps RFC 1701
	1004	pub const IPPROTO_GRE = 47;
	1005
	1006	/// encap. security payload
	1007	pub const IPPROTO_ESP = 50;
	1008
	1009	/// authentication header
	1010	pub const IPPROTO_AH = 51;
	1011
	1012	/// IP Mobility RFC 2004
	1013	pub const IPPROTO_MOBILE = 55;
	1014
	1015	/// IPv6 ICMP
	1016	pub const IPPROTO_IPV6_ICMP = 58;
	1017
	1018	/// ICMP6
	1019	pub const IPPROTO_ICMPV6 = 58;
	1020
	1021	/// IP6 no next header
	1022	pub const IPPROTO_NONE = 59;
	1023
	1024	/// IP6 destination option
	1025	pub const IPPROTO_DSTOPTS = 60;
	1026
	1027	/// ISO cnlp
	1028	pub const IPPROTO_EON = 80;
	1029
	1030	/// Ethernet-in-IP
	1031	pub const IPPROTO_ETHERIP = 97;
	1032
	1033	/// encapsulation header
	1034	pub const IPPROTO_ENCAP = 98;
	1035
	1036	/// Protocol indep. multicast
	1037	pub const IPPROTO_PIM = 103;
	1038
	1039	/// IP Payload Comp. Protocol
	1040	pub const IPPROTO_IPCOMP = 108;
	1041
	1042	/// VRRP RFC 2338
	1043	pub const IPPROTO_VRRP = 112;
	1044
	1045	/// Common Address Resolution Protocol
	1046	pub const IPPROTO_CARP = 112;
	1047
	1048	/// PFSYNC
	1049	pub const IPPROTO_PFSYNC = 240;
	1050
	1051	/// raw IP packet
	1052	pub const IPPROTO_RAW = 255;

lib/std/os/openbsd.zig created+8

...	...	@@ -0,0 +1,8 @@
	1	// SPDX-License-Identifier: MIT
	2	// Copyright (c) 2015-2020 Zig Contributors
	3	// This file is part of [zig](https://ziglang.org/), which is MIT licensed.
	4	// The MIT license requires this copyright notice to be included in all copies
	5	// and substantial portions of the software.
	6	const std = @import("../std.zig");
	7	pub usingnamespace std.c;
	8	pub usingnamespace @import("bits.zig");

lib/std/packed_int_array.zig+2-2

...	...	@@ -618,7 +618,7 @@ test "PackedIntArray at end of available memory" {
618	618	if (we_are_testing_this_with_stage1_which_leaks_comptime_memory) return error.SkipZigTest;
619	619
620	620	switch (builtin.os.tag) {
621		.linux, .macos, .ios, .freebsd, .netbsd, .windows => {},
	621	.linux, .macos, .ios, .freebsd, .netbsd, .openbsd, .windows => {},
622	622	else => return,
623	623	}
624	624	const PackedArray = PackedIntArray(u3, 8);
...	...	@@ -639,7 +639,7 @@ test "PackedIntSlice at end of available memory" {
639	639	if (we_are_testing_this_with_stage1_which_leaks_comptime_memory) return error.SkipZigTest;
640	640
641	641	switch (builtin.os.tag) {
642		.linux, .macos, .ios, .freebsd, .netbsd, .windows => {},
	642	.linux, .macos, .ios, .freebsd, .netbsd, .openbsd, .windows => {},
643	643	else => return,
644	644	}
645	645	const PackedSlice = PackedIntSlice(u11);

lib/std/process.zig+2-1

...	...	@@ -585,7 +585,7 @@ pub const UserInfo = struct {
585	585	/// POSIX function which gets a uid from username.
586	586	pub fn getUserInfo(name: []const u8) !UserInfo {
587	587	return switch (builtin.os.tag) {
588		.linux, .macos, .watchos, .tvos, .ios, .freebsd, .netbsd => posixGetUserInfo(name),
	588	.linux, .macos, .watchos, .tvos, .ios, .freebsd, .netbsd, .openbsd => posixGetUserInfo(name),
589	589	else => @compileError("Unsupported OS"),
590	590	};
591	591	}
...	...	@@ -712,6 +712,7 @@ pub fn getSelfExeSharedLibPaths(allocator: *Allocator) error{OutOfMemory}![][:0]
712	712	.freebsd,
713	713	.netbsd,
714	714	.dragonfly,
	715	.openbsd,
715	716	=> {
716	717	var paths = List.init(allocator);
717	718	errdefer {

lib/std/target.zig+3-3

...	...	@@ -266,8 +266,8 @@ pub const Target = struct {
266	266	},
267	267	.openbsd => return .{
268	268	.semver = .{
269		.min = .{ .major = 6, .minor = 6 },
270		.max = .{ .major = 6, .minor = 6 },
	269	.min = .{ .major = 6, .minor = 8 },
	270	.max = .{ .major = 6, .minor = 8 },
271	271	},
272	272	},
273	273	.dragonfly => return .{
...	...	@@ -1362,6 +1362,7 @@ pub const Target = struct {
1362	1362	switch (self.os.tag) {
1363	1363	.freebsd => return copy(&result, "/libexec/ld-elf.so.1"),
1364	1364	.netbsd => return copy(&result, "/libexec/ld.elf_so"),
	1365	.openbsd => return copy(&result, "/libexec/ld.so"),
1365	1366	.dragonfly => return copy(&result, "/libexec/ld-elf.so.2"),
1366	1367	.linux => switch (self.cpu.arch) {
1367	1368	.i386,
...	...	@@ -1471,7 +1472,6 @@ pub const Target = struct {
1471	1472	.fuchsia,
1472	1473	.kfreebsd,
1473	1474	.lv2,
1474		.openbsd,
1475	1475	.solaris,
1476	1476	.haiku,
1477	1477	.minix,

lib/std/zig/cross_target.zig+4

...	...	@@ -449,6 +449,10 @@ pub const CrossTarget = struct {
449	449	return self.getOsTag() == .netbsd;
450	450	}
451	451
	452	pub fn isOpenBSD(self: CrossTarget) bool {
	453	return self.getOsTag() == .openbsd;
	454	}
	455
452	456	pub fn isUefi(self: CrossTarget) bool {
453	457	return self.getOsTag() == .uefi;
454	458	}

src/libc_installation.zig+1-1

...	...	@@ -196,7 +196,7 @@ pub const LibCInstallation = struct {
196	196	errdefer batch.wait() catch {};
197	197	batch.add(&async self.findNativeIncludeDirPosix(args));
198	198	switch (Target.current.os.tag) {
199		.freebsd, .netbsd => self.crt_dir = try std.mem.dupeZ(args.allocator, u8, "/usr/lib"),
	199	.freebsd, .netbsd, .openbsd => self.crt_dir = try std.mem.dupeZ(args.allocator, u8, "/usr/lib"),
200	200	.linux, .dragonfly => batch.add(&async self.findNativeCrtDirPosix(args)),
201	201	else => {},
202	202	}

src/link/Elf.zig+6-1

...	...	@@ -1432,7 +1432,7 @@ fn linkWithLLD(self: Elf, comp: Compilation) !void {
1432	1432
1433	1433	if (link_in_crt) {
1434	1434	const crt1o: []const u8 = o: {
1435		if (target.os.tag == .netbsd) {
	1435	if (target.os.tag == .netbsd or target.os.tag == .openbsd) {
1436	1436	break :o "crt0.o";
1437	1437	} else if (target.isAndroid()) {
1438	1438	if (self.base.options.link_mode == .Dynamic) {
...	...	@@ -1450,6 +1450,9 @@ fn linkWithLLD(self: Elf, comp: Compilation) !void {
1450	1450	if (target_util.libc_needs_crti_crtn(target)) {
1451	1451	try argv.append(try comp.get_libc_crt_file(arena, "crti.o"));
1452	1452	}
	1453	if (target.os.tag == .openbsd) {
	1454	try argv.append(try comp.get_libc_crt_file(arena, "crtbegin.o"));
	1455	}
1453	1456	}
1454	1457
1455	1458	// rpaths
...	...	@@ -1594,6 +1597,8 @@ fn linkWithLLD(self: Elf, comp: Compilation) !void {
1594	1597	if (link_in_crt) {
1595	1598	if (target.isAndroid()) {
1596	1599	try argv.append(try comp.get_libc_crt_file(arena, "crtend_android.o"));
	1600	} else if (target.os.tag == .openbsd) {
	1601	try argv.append(try comp.get_libc_crt_file(arena, "crtend.o"));
1597	1602	} else if (target_util.libc_needs_crti_crtn(target)) {
1598	1603	try argv.append(try comp.get_libc_crt_file(arena, "crtn.o"));
1599	1604	}

src/stage1.zig+3-1

...	...	@@ -25,7 +25,9 @@ comptime {
25	25	pub const log = stage2.log;
26	26	pub const log_level = stage2.log_level;
27	27
28		pub export fn main(argc: c_int, argv: []const [:0]const u8) c_int {
	28	pub export fn main(argc: c_int, argv: [][:0]u8) c_int {
	29	std.os.argv = argv[0..@intCast(usize, argc)];
	30
29	31	std.debug.maybeEnableSegfaultHandler();
30	32
31	33	zig_stage1_os_init();

src/stage1/os.cpp+2-2

...	...	@@ -59,7 +59,7 @@ typedef SSIZE_T ssize_t;
59	59
60	60	#endif
61	61
62		#if defined(ZIG_OS_LINUX) \|\| defined(ZIG_OS_FREEBSD) \|\| defined(ZIG_OS_NETBSD) \|\| defined(ZIG_OS_DRAGONFLY)
	62	#if defined(ZIG_OS_LINUX) \|\| defined(ZIG_OS_FREEBSD) \|\| defined(ZIG_OS_NETBSD) \|\| defined(ZIG_OS_DRAGONFLY) \|\| defined(ZIG_OS_OPENBSD)
63	63	#include <link.h>
64	64	#endif
65	65
...	...	@@ -67,7 +67,7 @@ typedef SSIZE_T ssize_t;
67	67	#include <sys/auxv.h>
68	68	#endif
69	69
70		#if defined(ZIG_OS_FREEBSD) \|\| defined(ZIG_OS_NETBSD) \|\| defined(ZIG_OS_DRAGONFLY)
	70	#if defined(ZIG_OS_FREEBSD) \|\| defined(ZIG_OS_NETBSD) \|\| defined(ZIG_OS_DRAGONFLY) \|\| defined(ZIG_OS_OPENBSD)
71	71	#include <sys/sysctl.h>
72	72	#endif
73	73

src/stage1/os.hpp+2

...	...	@@ -29,6 +29,8 @@
29	29	#define ZIG_OS_NETBSD
30	30	#elif defined(__DragonFly__)
31	31	#define ZIG_OS_DRAGONFLY
	32	#elif defined(__OpenBSD__)
	33	#define ZIG_OS_OPENBSD
32	34	#else
33	35	#define ZIG_OS_UNKNOWN
34	36	#endif

src/target.zig+3-3

...	...	@@ -123,7 +123,7 @@ pub fn cannotDynamicLink(target: std.Target) bool {
123	123	/// since this is the stable syscall interface.
124	124	pub fn osRequiresLibC(target: std.Target) bool {
125	125	return switch (target.os.tag) {
126		.freebsd, .netbsd, .dragonfly, .macos, .ios, .watchos, .tvos => true,
	126	.freebsd, .netbsd, .dragonfly, .openbsd, .macos, .ios, .watchos, .tvos => true,
127	127	else => false,
128	128	};
129	129	}
...	...	@@ -143,7 +143,7 @@ pub fn libcNeedsLibUnwind(target: std.Target) bool {
143	143	}
144	144
145	145	pub fn requiresPIE(target: std.Target) bool {
146		return target.isAndroid() or target.isDarwin();
	146	return target.isAndroid() or target.isDarwin() or target.os.tag == .openbsd;
147	147	}
148	148
149	149	/// This function returns whether non-pic code is completely invalid on the given target.
...	...	@@ -161,7 +161,7 @@ pub fn supports_fpic(target: std.Target) bool {
161	161	}
162	162
163	163	pub fn libc_needs_crti_crtn(target: std.Target) bool {
164		return !(target.cpu.arch.isRISCV() or target.isAndroid());
	164	return !(target.cpu.arch.isRISCV() or target.isAndroid() or target.os.tag == .openbsd);
165	165	}
166	166
167	167	pub fn isSingleThreaded(target: std.Target) bool {