Merge remote-tracking branch 'offical/master'

base/runtime/default_allocators_arena.odin

@@ -12,6 +12,7 @@ Memory_Block :: struct {
 	capacity:  uint,
 }
 
+// NOTE: This is for internal use, prefer `Arena` from `core:mem/virtual` if necessary
 Arena :: struct {
 	backing_allocator:  Allocator,
 	curr_block:         ^Memory_Block,

base/runtime/entry_unix.odin

@@ -1,5 +1,5 @@
 //+private
-//+build linux, darwin, freebsd, openbsd, haiku
+//+build linux, darwin, freebsd, openbsd, netbsd, haiku
 //+no-instrumentation
 package runtime
 

base/runtime/heap_allocator_unix.odin

@@ -1,4 +1,4 @@
-//+build linux, darwin, freebsd, openbsd, haiku
+//+build linux, darwin, freebsd, openbsd, netbsd, haiku
 //+private
 package runtime
 

base/runtime/os_specific_bsd.odin

@@ -1,4 +1,4 @@
-//+build freebsd, openbsd
+//+build freebsd, openbsd, netbsd
 //+private
 package runtime
 
@@ -9,7 +9,11 @@ foreign libc {
 	@(link_name="write")
 	_unix_write :: proc(fd: i32, buf: rawptr, size: int) -> int ---
 
-	__error :: proc() -> ^i32 ---
+	when ODIN_OS == .NetBSD {
+		@(link_name="__errno") __error :: proc() -> ^i32 ---
+	} else {
+		__error :: proc() -> ^i32 ---
+	}
 }
 
 _stderr_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {

build_odin.sh

@@ -71,6 +71,10 @@ FreeBSD)
 	CXXFLAGS="$CXXFLAGS $($LLVM_CONFIG --cxxflags --ldflags)"
 	LDFLAGS="$LDFLAGS $($LLVM_CONFIG --libs core native --system-libs)"
 	;;
+NetBSD)
+	CXXFLAGS="$CXXFLAGS $($LLVM_CONFIG --cxxflags --ldflags)"
+	LDFLAGS="$LDFLAGS $($LLVM_CONFIG --libs core native --system-libs)"
+	;;
 Linux)
 	CXXFLAGS="$CXXFLAGS $($LLVM_CONFIG --cxxflags --ldflags)"
 	LDFLAGS="$LDFLAGS -ldl $($LLVM_CONFIG --libs core native --system-libs --libfiles)"

core/c/libc/errno.odin

@@ -40,7 +40,7 @@ when ODIN_OS == .FreeBSD {
 	ERANGE :: 34
 }
 
-when ODIN_OS == .OpenBSD {
+when ODIN_OS == .OpenBSD || ODIN_OS == .NetBSD {
 	@(private="file")
 	@(default_calling_convention="c")
 	foreign libc {

core/c/libc/stdio.odin

@@ -83,7 +83,7 @@ when ODIN_OS == .Linux {
 	}
 }
 
-when ODIN_OS == .OpenBSD {
+when ODIN_OS == .OpenBSD || ODIN_OS == .NetBSD {
 	fpos_t :: distinct i64
 
 	_IOFBF :: 0

core/c/libc/time.odin

@@ -45,7 +45,7 @@ when ODIN_OS == .Windows {
 	}
 }
 
-when ODIN_OS == .Linux || ODIN_OS == .FreeBSD || ODIN_OS == .Darwin || ODIN_OS == .OpenBSD || ODIN_OS == .Haiku {
+when ODIN_OS == .Linux || ODIN_OS == .FreeBSD || ODIN_OS == .Darwin || ODIN_OS == .OpenBSD || ODIN_OS == .NetBSD || ODIN_OS == .Haiku {
 	@(default_calling_convention="c")
 	foreign libc {
 		// 7.27.2 Time manipulation functions

core/c/libc/wctype.odin

@@ -22,7 +22,7 @@ when ODIN_OS == .Windows {
 	wctrans_t :: distinct int
 	wctype_t  :: distinct u32
 
-} else when ODIN_OS == .OpenBSD {
+} else when ODIN_OS == .OpenBSD || ODIN_OS == .NetBSD {
 	wctrans_t :: distinct rawptr
 	wctype_t  :: distinct rawptr
 

core/crypto/rand_bsd.odin

@@ -1,4 +1,4 @@
-//+build freebsd, openbsd
+//+build freebsd, openbsd, netbsd
 package crypto
 
 foreign import libc "system:c"

core/crypto/rand_generic.odin

@@ -2,6 +2,7 @@
 //+build !windows
 //+build !openbsd
 //+build !freebsd
+//+build !netbsd
 //+build !darwin
 //+build !js
 package crypto

core/dynlib/lib_unix.odin

@@ -1,4 +1,4 @@
-//+build linux, darwin, freebsd, openbsd
+//+build linux, darwin, freebsd, openbsd, netbsd
 //+private
 package dynlib
 

core/mem/virtual/virtual_bsd.odin

@@ -1,9 +1,7 @@
-//+build freebsd, openbsd
+//+build freebsd, openbsd, netbsd
 //+private
 package mem_virtual
 
-
-
 _reserve :: proc "contextless" (size: uint) -> (data: []byte, err: Allocator_Error) {
 	return nil, nil
 }
@@ -11,16 +9,18 @@ _reserve :: proc "contextless" (size: uint) -> (data: []byte, err: Allocator_Err
 _commit :: proc "contextless" (data: rawptr, size: uint) -> Allocator_Error {
 	return nil
 }
+
 _decommit :: proc "contextless" (data: rawptr, size: uint) {
 }
+
 _release :: proc "contextless" (data: rawptr, size: uint) {
 }
+
 _protect :: proc "contextless" (data: rawptr, size: uint, flags: Protect_Flags) -> bool {
 	return false
 }
 
 _platform_memory_init :: proc() {
-
 }
 
 _map_file :: proc "contextless" (fd: uintptr, size: i64, flags: Map_File_Flags) -> (data: []byte, error: Map_File_Error) {

core/net/dns.odin

@@ -30,7 +30,7 @@ when ODIN_OS == .Windows {
 		resolv_conf        = "",
 		hosts_file         = "%WINDIR%\\system32\\drivers\\etc\\hosts",
 	}
-} else when ODIN_OS == .Linux || ODIN_OS == .Darwin || ODIN_OS == .OpenBSD {
+} else when ODIN_OS == .Linux || ODIN_OS == .Darwin || ODIN_OS == .OpenBSD || ODIN_OS == .NetBSD {
 	DEFAULT_DNS_CONFIGURATION :: DNS_Configuration{
 		resolv_conf        = "/etc/resolv.conf",
 		hosts_file         = "/etc/hosts",
@@ -854,4 +854,4 @@ parse_response :: proc(response: []u8, filter: DNS_Record_Type = nil, allocator
 	}
 
 	return _records[:], true
-}
+}

core/os/dir_bsd.odin

@@ -1,3 +1,4 @@
+//+build freebsd, netbsd
 package os
 
 import "core:mem"

core/os/os2/allocators.odin

@@ -0,0 +1,48 @@
+//+private
+package os2
+
+import "base:runtime"
+
+@(require_results)
+file_allocator :: proc() -> runtime.Allocator {
+	return heap_allocator()
+}
+
+temp_allocator_proc :: runtime.arena_allocator_proc
+
+@(private="file", thread_local)
+global_default_temp_allocator_arena: runtime.Arena
+
+@(require_results)
+temp_allocator :: proc() -> runtime.Allocator {
+	return runtime.Allocator{
+		procedure = temp_allocator_proc,
+		data      = &global_default_temp_allocator_arena,
+	}
+}
+
+@(require_results)
+temp_allocator_temp_begin :: proc(loc := #caller_location) -> (temp: runtime.Arena_Temp) {
+	temp = runtime.arena_temp_begin(&global_default_temp_allocator_arena, loc)
+	return
+}
+
+temp_allocator_temp_end :: proc(temp: runtime.Arena_Temp, loc := #caller_location) {
+	runtime.arena_temp_end(temp, loc)
+}
+
+@(fini, private)
+temp_allocator_fini :: proc() {
+	runtime.arena_destroy(&global_default_temp_allocator_arena)
+	global_default_temp_allocator_arena = {}
+}
+
+@(deferred_out=temp_allocator_temp_end)
+TEMP_ALLOCATOR_GUARD :: #force_inline proc(ignore := false, loc := #caller_location) -> (runtime.Arena_Temp, runtime.Source_Code_Location) {
+	if ignore {
+		return {}, loc
+	} else {
+		return temp_allocator_temp_begin(loc), loc
+	}
+}
+

core/os/os2/env.odin

@@ -6,6 +6,7 @@ import "base:runtime"
 // It returns the value, which will be empty if the variable is not present
 // To distinguish between an empty value and an unset value, use lookup_env
 // NOTE: the value will be allocated with the supplied allocator
+@(require_results)
 get_env :: proc(key: string, allocator: runtime.Allocator) -> string {
 	value, _ := lookup_env(key, allocator)
 	return value
@@ -15,6 +16,7 @@ get_env :: proc(key: string, allocator: runtime.Allocator) -> string {
 // If the variable is found in the environment the value (which can be empty) is returned and the boolean is true
 // Otherwise the returned value will be empty and the boolean will be false
 // NOTE: the value will be allocated with the supplied allocator
+@(require_results)
 lookup_env :: proc(key: string, allocator: runtime.Allocator) -> (value: string, found: bool) {
 	return _lookup_env(key, allocator)
 }
@@ -38,6 +40,7 @@ clear_env :: proc() {
 
 // environ returns a copy of strings representing the environment, in the form "key=value"
 // NOTE: the slice of strings and the strings with be allocated using the supplied allocator
+@(require_results)
 environ :: proc(allocator: runtime.Allocator) -> []string {
 	return _environ(allocator)
 }

core/os/os2/env_windows.odin

@@ -19,9 +19,9 @@ _lookup_env :: proc(key: string, allocator: runtime.Allocator) -> (value: string
 		return "", true
 	}
 
-	_TEMP_ALLOCATOR_GUARD()
+	TEMP_ALLOCATOR_GUARD()
 
-	b := make([]u16, n+1, _temp_allocator())
+	b := make([]u16, n+1, temp_allocator())
 
 	n = win32.GetEnvironmentVariableW(wkey, raw_data(b), u32(len(b)))
 	if n == 0 {
@@ -50,8 +50,8 @@ _unset_env :: proc(key: string) -> bool {
 }
 
 _clear_env :: proc() {
-	_TEMP_ALLOCATOR_GUARD()
-	envs := environ(_temp_allocator())
+	TEMP_ALLOCATOR_GUARD()
+	envs := environ(temp_allocator())
 	for env in envs {
 		for j in 1..<len(env) {
 			if env[j] == '=' {

core/os/os2/errors.odin

@@ -23,6 +23,8 @@ General_Error :: enum u32 {
 	Invalid_Dir,
 	Invalid_Path,
 
+	Pattern_Has_Separator,
+
 	Unsupported,
 }
 
@@ -63,6 +65,7 @@ error_string :: proc(ferr: Error) -> string {
 		case .Invalid_Dir:       return "invalid directory"
 		case .Invalid_Path:      return "invalid path"
 		case .Unsupported:       return "unsupported"
+		case .Pattern_Has_Separator: return "pattern has separator"
 		}
 	case io.Error:
 		switch e {

core/os/os2/file.odin

@@ -5,8 +5,9 @@ import "core:time"
 import "base:runtime"
 
 File :: struct {
-	impl: _File,
+	impl:   _File,
 	stream: io.Stream,
+	user_fstat: Fstat_Callback,
 }
 
 File_Mode :: distinct u32
@@ -51,22 +52,27 @@ stdout: ^File = nil // OS-Specific
 stderr: ^File = nil // OS-Specific
 
 
+@(require_results)
 create :: proc(name: string) -> (^File, Error) {
 	return open(name, {.Read, .Write, .Create}, File_Mode(0o777))
 }
 
+@(require_results)
 open :: proc(name: string, flags := File_Flags{.Read}, perm := File_Mode(0o777)) -> (^File, Error) {
 	return _open(name, flags, perm)
 }
 
+@(require_results)
 new_file :: proc(handle: uintptr, name: string) -> ^File {
 	return _new_file(handle, name)
 }
 
+@(require_results)
 fd :: proc(f: ^File) -> uintptr {
 	return _fd(f)
 }
 
+@(require_results)
 name :: proc(f: ^File) -> string {
 	return _name(f)
 }
@@ -200,15 +206,18 @@ fchange_times :: proc(f: ^File, atime, mtime: time.Time) -> Error {
 	return _fchtimes(f, atime, mtime)
 }
 
+@(require_results)
 exists :: proc(path: string) -> bool {
 	return _exists(path)
 }
 
+@(require_results)
 is_file :: proc(path: string) -> bool {
 	return _is_file(path)
 }
 
 is_dir :: is_directory
+@(require_results)
 is_directory :: proc(path: string) -> bool {
 	return _is_dir(path)
 }
@@ -218,8 +227,8 @@ copy_file :: proc(dst_path, src_path: string) -> Error {
 	src := open(src_path) or_return
 	defer close(src)
 
-	info := fstat(src, _file_allocator()) or_return
-	defer file_info_delete(info, _file_allocator())
+	info := fstat(src, file_allocator()) or_return
+	defer file_info_delete(info, file_allocator())
 	if info.is_directory {
 		return .Invalid_File
 	}
@@ -229,4 +238,4 @@ copy_file :: proc(dst_path, src_path: string) -> Error {
 
 	_, err := io.copy(to_writer(dst), to_reader(src))
 	return err
-}
+}

core/os/os2/file_linux.odin

@@ -1,10 +1,9 @@
 //+private
 package os2
 
+import "base:runtime"
 import "core:io"
 import "core:time"
-import "core:strings"
-import "base:runtime"
 import "core:sys/unix"
 
 INVALID_HANDLE :: -1
@@ -35,13 +34,9 @@ _File :: struct {
 	allocator: runtime.Allocator,
 }
 
-_file_allocator :: proc() -> runtime.Allocator {
-	return heap_allocator()
-}
-
-_open :: proc(name: string, flags: File_Flags, perm: File_Mode) -> (^File, Error) {
-	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+_open :: proc(name: string, flags: File_Flags, perm: File_Mode) -> (f: ^File, err: Error) {
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr := temp_cstring(name) or_return
 
 	// Just default to using O_NOCTTY because needing to open a controlling
 	// terminal would be incredibly rare. This has no effect on files while
@@ -53,12 +48,12 @@ _open :: proc(name: string, flags: File_Flags, perm: File_Mode) -> (^File, Error
 	case O_RDWR:   flags_i = _O_RDWR
 	}
 
-	flags_i |= (_O_APPEND * int(.Append in flags))
-	flags_i |= (_O_CREAT * int(.Create in flags))
-	flags_i |= (_O_EXCL * int(.Excl in flags))
-	flags_i |= (_O_SYNC * int(.Sync in flags))
-	flags_i |= (_O_TRUNC * int(.Trunc in flags))
-	flags_i |= (_O_CLOEXEC * int(.Close_On_Exec in flags))
+	if .Append        in flags { flags_i |= _O_APPEND  }
+	if .Create        in flags { flags_i |= _O_CREAT   }
+	if .Excl          in flags { flags_i |= _O_EXCL    }
+	if .Sync          in flags { flags_i |= _O_SYNC    }
+	if .Trunc         in flags { flags_i |= _O_TRUNC   }
+	if .Close_On_Exec in flags { flags_i |= _O_CLOEXEC }
 
 	fd := unix.sys_open(name_cstr, flags_i, uint(perm))
 	if fd < 0 {
@@ -69,9 +64,9 @@ _open :: proc(name: string, flags: File_Flags, perm: File_Mode) -> (^File, Error
 }
 
 _new_file :: proc(fd: uintptr, _: string) -> ^File {
-	file := new(File, _file_allocator())
+	file := new(File, file_allocator())
 	file.impl.fd = int(fd)
-	file.impl.allocator = _file_allocator()
+	file.impl.allocator = file_allocator()
 	file.impl.name = _get_full_path(file.impl.fd, file.impl.allocator)
 	file.stream = {
 		data = file,
@@ -91,8 +86,12 @@ _destroy :: proc(f: ^File) -> Error {
 
 
 _close :: proc(f: ^File) -> Error {
-	res := unix.sys_close(f.impl.fd)
-	return _ok_or_error(res)
+	if f != nil {
+		res := unix.sys_close(f.impl.fd)
+		_destroy(f)
+		return _ok_or_error(res)
+	}
+	return nil
 }
 
 _fd :: proc(f: ^File) -> uintptr {
@@ -194,7 +193,8 @@ _truncate :: proc(f: ^File, size: i64) -> Error {
 }
 
 _remove :: proc(name: string) -> Error {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr := temp_cstring(name) or_return
 
 	fd := unix.sys_open(name_cstr, int(File_Flags.Read))
 	if fd < 0 {
@@ -209,22 +209,25 @@ _remove :: proc(name: string) -> Error {
 }
 
 _rename :: proc(old_name, new_name: string) -> Error {
-	old_name_cstr := strings.clone_to_cstring(old_name, context.temp_allocator)
-	new_name_cstr := strings.clone_to_cstring(new_name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	old_name_cstr := temp_cstring(old_name) or_return
+	new_name_cstr := temp_cstring(new_name) or_return
 
 	return _ok_or_error(unix.sys_rename(old_name_cstr, new_name_cstr))
 }
 
 _link :: proc(old_name, new_name: string) -> Error {
-	old_name_cstr := strings.clone_to_cstring(old_name, context.temp_allocator)
-	new_name_cstr := strings.clone_to_cstring(new_name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	old_name_cstr := temp_cstring(old_name) or_return
+	new_name_cstr := temp_cstring(new_name) or_return
 
 	return _ok_or_error(unix.sys_link(old_name_cstr, new_name_cstr))
 }
 
 _symlink :: proc(old_name, new_name: string) -> Error {
-	old_name_cstr := strings.clone_to_cstring(old_name, context.temp_allocator)
-	new_name_cstr := strings.clone_to_cstring(new_name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	old_name_cstr := temp_cstring(old_name) or_return
+	new_name_cstr := temp_cstring(new_name) or_return
 
 	return _ok_or_error(unix.sys_symlink(old_name_cstr, new_name_cstr))
 }
@@ -233,7 +236,7 @@ _read_link_cstr :: proc(name_cstr: cstring, allocator: runtime.Allocator) -> (st
 	bufsz : uint = 256
 	buf := make([]byte, bufsz, allocator)
 	for {
-		rc := unix.sys_readlink(name_cstr, &(buf[0]), bufsz)
+		rc := unix.sys_readlink(name_cstr, &buf[0], bufsz)
 		if rc < 0 {
 			delete(buf)
 			return "", _get_platform_error(rc)
@@ -242,23 +245,26 @@ _read_link_cstr :: proc(name_cstr: cstring, allocator: runtime.Allocator) -> (st
 			delete(buf)
 			buf = make([]byte, bufsz, allocator)
 		} else {
-			return strings.string_from_ptr(&buf[0], rc), nil
+			return string(buf[:rc]), nil
 		}
 	}
 }
 
-_read_link :: proc(name: string, allocator: runtime.Allocator) -> (string, Error) {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+_read_link :: proc(name: string, allocator: runtime.Allocator) -> (path: string, err: Error) {
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr := temp_cstring(name) or_return
 	return _read_link_cstr(name_cstr, allocator)
 }
 
 _unlink :: proc(name: string) -> Error {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr := temp_cstring(name) or_return
 	return _ok_or_error(unix.sys_unlink(name_cstr))
 }
 
 _chdir :: proc(name: string) -> Error {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr := temp_cstring(name) or_return
 	return _ok_or_error(unix.sys_chdir(name_cstr))
 }
 
@@ -267,7 +273,8 @@ _fchdir :: proc(f: ^File) -> Error {
 }
 
 _chmod :: proc(name: string, mode: File_Mode) -> Error {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr := temp_cstring(name) or_return
 	return _ok_or_error(unix.sys_chmod(name_cstr, uint(mode)))
 }
 
@@ -277,13 +284,15 @@ _fchmod :: proc(f: ^File, mode: File_Mode) -> Error {
 
 // NOTE: will throw error without super user priviledges
 _chown :: proc(name: string, uid, gid: int) -> Error {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr := temp_cstring(name) or_return
 	return _ok_or_error(unix.sys_chown(name_cstr, uid, gid))
 }
 
 // NOTE: will throw error without super user priviledges
 _lchown :: proc(name: string, uid, gid: int) -> Error {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr := temp_cstring(name) or_return
 	return _ok_or_error(unix.sys_lchown(name_cstr, uid, gid))
 }
 
@@ -293,7 +302,8 @@ _fchown :: proc(f: ^File, uid, gid: int) -> Error {
 }
 
 _chtimes :: proc(name: string, atime, mtime: time.Time) -> Error {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr := temp_cstring(name) or_return
 	times := [2]Unix_File_Time {
 		{ atime._nsec, 0 },
 		{ mtime._nsec, 0 },
@@ -310,12 +320,14 @@ _fchtimes :: proc(f: ^File, atime, mtime: time.Time) -> Error {
 }
 
 _exists :: proc(name: string) -> bool {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr, _ := temp_cstring(name)
 	return unix.sys_access(name_cstr, F_OK) == 0
 }
 
 _is_file :: proc(name: string) -> bool {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr, _ := temp_cstring(name)
 	s: _Stat
 	res := unix.sys_stat(name_cstr, &s)
 	if res < 0 {
@@ -334,7 +346,8 @@ _is_file_fd :: proc(fd: int) -> bool {
 }
 
 _is_dir :: proc(name: string) -> bool {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr, _ := temp_cstring(name)
 	s: _Stat
 	res := unix.sys_stat(name_cstr, &s)
 	if res < 0 {
@@ -352,21 +365,10 @@ _is_dir_fd :: proc(fd: int) -> bool {
 	return S_ISDIR(s.mode)
 }
 
-// Ideally we want to use the temp_allocator.  PATH_MAX on Linux is commonly
-// defined as 512, however, it is well known that paths can exceed that limit.
-// So, in theory you could have a path larger than the entire temp_allocator's
-// buffer. Therefor, any large paths will use context.allocator.
-@(private="file")
-_temp_name_to_cstring :: proc(name: string) -> (cname: cstring) {
-	return strings.clone_to_cstring(name, context.temp_allocator)
-}
-
-
 @(private="package")
 _file_stream_proc :: proc(stream_data: rawptr, mode: io.Stream_Mode, p: []byte, offset: i64, whence: io.Seek_From) -> (n: i64, err: io.Error) {
 	f := (^File)(stream_data)
 	ferr: Error
-	i: int
 	switch mode {
 	case .Read:
 		n, ferr = _read(f, p)

core/os/os2/file_util.odin

@@ -76,6 +76,7 @@ read_entire_file :: proc{
 	read_entire_file_from_file,
 }
 
+@(require_results)
 read_entire_file_from_path :: proc(name: string, allocator: runtime.Allocator) -> (data: []byte, err: Error) {
 	f, ferr := open(name)
 	if ferr != nil {
@@ -85,14 +86,15 @@ read_entire_file_from_path :: proc(name: string, allocator: runtime.Allocator) -
 	return read_entire_file_from_file(f, allocator)
 }
 
+@(require_results)
 read_entire_file_from_file :: proc(f: ^File, allocator: runtime.Allocator) -> (data: []byte, err: Error) {
 	size: int
 	has_size := true
-	if size64, err := file_size(f); err == nil {
+	if size64, serr := file_size(f); serr == nil {
 		if i64(int(size64)) != size64 {
 			size = int(size64)
 		}
-	} else if err == .No_Size {
+	} else if serr == .No_Size {
 		has_size = false
 	} else {
 		return
@@ -135,6 +137,7 @@ read_entire_file_from_file :: proc(f: ^File, allocator: runtime.Allocator) -> (d
 	}
 }
 
+@(require_results)
 write_entire_file :: proc(name: string, data: []byte, perm: File_Mode, truncate := true) -> Error {
 	flags := O_WRONLY|O_CREATE
 	if truncate {

core/os/os2/file_windows.odin

@@ -6,7 +6,6 @@ import "base:runtime"
 import "core:io"
 import "core:mem"
 import "core:sync"
-import "core:strings"
 import "core:time"
 import "core:unicode/utf16"
 import win32 "core:sys/windows"
@@ -17,49 +16,6 @@ S_IWRITE :: 0o200
 _ERROR_BAD_NETPATH :: 53
 MAX_RW :: 1<<30
 
-_file_allocator :: proc() -> runtime.Allocator {
-	return heap_allocator()
-}
-
-_temp_allocator_proc :: runtime.arena_allocator_proc
-
-@(private="file", thread_local)
-_global_default_temp_allocator_arena: runtime.Arena
-
-_temp_allocator :: proc() -> runtime.Allocator {
-	return runtime.Allocator{
-		procedure = _temp_allocator_proc,
-		data      = &_global_default_temp_allocator_arena,
-	}
-}
-
-@(require_results)
-_temp_allocator_temp_begin :: proc(loc := #caller_location) -> (temp: runtime.Arena_Temp) {
-	temp = runtime.arena_temp_begin(&_global_default_temp_allocator_arena, loc)
-	return
-}
-
-_temp_allocator_temp_end :: proc(temp: runtime.Arena_Temp, loc := #caller_location) {
-	runtime.arena_temp_end(temp, loc)
-}
-
-@(fini, private)
-_destroy_temp_allocator_fini :: proc() {
-	runtime.arena_destroy(&_global_default_temp_allocator_arena)
-	_global_default_temp_allocator_arena = {}
-}
-
-@(deferred_out=_temp_allocator_temp_end)
-_TEMP_ALLOCATOR_GUARD :: #force_inline proc(ignore := false, loc := #caller_location) -> (runtime.Arena_Temp, runtime.Source_Code_Location) {
-	if ignore {
-		return {}, loc
-	} else {
-		return _temp_allocator_temp_begin(loc), loc
-	}
-}
-
-
-
 
 _File_Kind :: enum u8 {
 	File,
@@ -79,6 +35,20 @@ _File :: struct {
 	p_mutex:  sync.Mutex, // pread pwrite calls
 }
 
+@(init)
+init_std_files :: proc() {
+	stdin  = new_file(uintptr(win32.GetStdHandle(win32.STD_INPUT_HANDLE)),  "<stdin>")
+	stdout = new_file(uintptr(win32.GetStdHandle(win32.STD_OUTPUT_HANDLE)), "<stdout>")
+	stderr = new_file(uintptr(win32.GetStdHandle(win32.STD_ERROR_HANDLE)),  "<stderr>")
+}
+@(fini)
+fini_std_files :: proc() {
+	close(stdin)
+	close(stdout)
+	close(stderr)
+}
+
+
 _handle :: proc(f: ^File) -> win32.HANDLE {
 	return win32.HANDLE(_fd(f))
 }
@@ -162,11 +132,11 @@ _new_file :: proc(handle: uintptr, name: string) -> ^File {
 	if handle == INVALID_HANDLE {
 		return nil
 	}
-	f := new(File, _file_allocator())
+	f := new(File, file_allocator())
 
-	f.impl.allocator = _file_allocator()
+	f.impl.allocator = file_allocator()
 	f.impl.fd = rawptr(handle)
-	f.impl.name = strings.clone(name, f.impl.allocator)
+	f.impl.name, _ = clone_string(name, f.impl.allocator)
 	f.impl.wname = win32.utf8_to_wstring(name, f.impl.allocator)
 
 	handle := _handle(f)
@@ -311,10 +281,10 @@ _read :: proc(f: ^File, p: []byte) -> (n: i64, err: Error) {
 		to_read := min(win32.DWORD(length), MAX_RW)
 		ok: win32.BOOL
 		if f.impl.kind == .Console {
-			n, err := read_console(handle, p[total_read:][:to_read])
+			n, cerr := read_console(handle, p[total_read:][:to_read])
 			total_read += n
-			if err != nil {
-				return i64(total_read), err
+			if cerr != nil {
+				return i64(total_read), cerr
 			}
 		} else {
 			ok = win32.ReadFile(handle, &p[total_read], to_read, &single_read_length, nil)
@@ -583,9 +553,9 @@ _normalize_link_path :: proc(p: []u16, allocator: runtime.Allocator) -> (str: st
 		return "", _get_platform_error()
 	}
 
-	_TEMP_ALLOCATOR_GUARD()
+	TEMP_ALLOCATOR_GUARD()
 
-	buf := make([]u16, n+1, _temp_allocator())
+	buf := make([]u16, n+1, temp_allocator())
 	n = win32.GetFinalPathNameByHandleW(handle, raw_data(buf), u32(len(buf)), win32.VOLUME_NAME_DOS)
 	if n == 0 {
 		return "", _get_platform_error()
@@ -798,14 +768,12 @@ _file_stream_proc :: proc(stream_data: rawptr, mode: io.Stream_Mode, p: []byte,
 		ferr = _flush(f)
 		err = error_to_io_error(ferr)
 		return
-	case .Close:
+	case .Close, .Destroy:
 		ferr = _close(f)
 		err = error_to_io_error(ferr)
 		return
 	case .Query:
 		return io.query_utility({.Read, .Read_At, .Write, .Write_At, .Seek, .Size, .Flush, .Close, .Query})
-	case .Destroy:
-		return 0, .Empty
 	}
 	return 0, .Empty
 }

core/os/os2/heap.odin

@@ -2,6 +2,7 @@ package os2
 
 import "base:runtime"
 
+@(require_results)
 heap_allocator :: proc() -> runtime.Allocator {
 	return runtime.Allocator{
 		procedure = heap_allocator_proc,
@@ -10,6 +11,7 @@ heap_allocator :: proc() -> runtime.Allocator {
 }
 
 
+@(require_results)
 heap_allocator_proc :: proc(allocator_data: rawptr, mode: runtime.Allocator_Mode,
                             size, alignment: int,
                             old_memory: rawptr, old_size: int, loc := #caller_location) -> ([]byte, runtime.Allocator_Error) {

core/os/os2/internal_util.odin

@@ -0,0 +1,128 @@
+//+private
+package os2
+
+import "base:intrinsics"
+import "base:runtime"
+
+
+// Splits pattern by the last wildcard "*", if it exists, and returns the prefix and suffix
+// parts which are split by the last "*"
+@(require_results)
+_prefix_and_suffix :: proc(pattern: string) -> (prefix, suffix: string, err: Error) {
+	for i in 0..<len(pattern) {
+		if is_path_separator(pattern[i]) {
+			err = .Pattern_Has_Separator
+			return
+		}
+	}
+	prefix = pattern
+	for i := len(pattern)-1; i >= 0; i -= 1 {
+		if pattern[i] == '*' {
+			prefix, suffix = pattern[:i], pattern[i+1:]
+			break
+		}
+	}
+	return
+}
+
+@(require_results)
+clone_string :: proc(s: string, allocator: runtime.Allocator) -> (res: string, err: runtime.Allocator_Error) {
+	buf := make([]byte, len(s), allocator) or_return
+	copy(buf, s)
+	return string(buf), nil
+}
+
+
+@(require_results)
+clone_to_cstring :: proc(s: string, allocator: runtime.Allocator) -> (res: cstring, err: runtime.Allocator_Error) {
+	res = "" // do not use a `nil` cstring
+	buf := make([]byte, len(s)+1, allocator) or_return
+	copy(buf, s)
+	buf[len(s)] = 0
+	return cstring(&buf[0]), nil
+}
+
+@(require_results)
+temp_cstring :: proc(s: string) -> (cstring, runtime.Allocator_Error) {
+	return clone_to_cstring(s, temp_allocator())
+}
+
+@(require_results)
+string_from_null_terminated_bytes :: proc(b: []byte) -> (res: string) {
+	s := string(b)
+	i := 0
+	for ; i < len(s); i += 1 {
+		if s[i] == 0 {
+			break
+		}
+	}
+	return s[:i]
+}
+
+@(require_results)
+concatenate_strings_from_buffer :: proc(buf: []byte, strings: ..string) -> string {
+	n := 0
+	for s in strings {
+		(n < len(buf)) or_break
+		n += copy(buf[n:], s)
+	}
+	n = min(len(buf), n)
+	return string(buf[:n])
+}
+
+@(require_results)
+concatenate :: proc(strings: []string, allocator: runtime.Allocator) -> (res: string, err: runtime.Allocator_Error) {
+	n := 0
+	for s in strings {
+		n += len(s)
+	}
+	buf := make([]byte, n) or_return
+	n = 0
+	for s in strings {
+		n += copy(buf[n:], s)
+	}
+	return string(buf), nil
+}
+
+
+
+@(private="file")
+random_string_seed: [2]u64
+
+@(init, private="file")
+init_random_string_seed :: proc() {
+	seed := u64(intrinsics.read_cycle_counter())
+	s := &random_string_seed
+	s[0] = 0
+	s[1] = (seed << 1) | 1
+	_ = next_random(s)
+	s[1] += seed
+	_ = next_random(s)
+}
+
+@(require_results)
+next_random :: proc(r: ^[2]u64) -> u64 {
+	old_state := r[0]
+	r[0] = old_state * 6364136223846793005 + (r[1]|1)
+	xor_shifted := (((old_state >> 59) + 5) ~ old_state) * 12605985483714917081
+	rot := (old_state >> 59)
+	return (xor_shifted >> rot) | (xor_shifted << ((-rot) & 63))
+}
+
+@(require_results)
+random_string :: proc(buf: []byte) -> string {
+	@static digits := "0123456789"
+
+	u := next_random(&random_string_seed)
+
+	b :: 10
+	i := len(buf)
+	for u >= b {
+		i -= 1
+		buf[i] = digits[u % b]
+		u /= b
+	}
+	i -= 1
+	buf[i] = digits[u % b]
+	return string(buf[i:])
+}

core/os/os2/path.odin

@@ -2,9 +2,11 @@ package os2
 
 import "base:runtime"
 
-Path_Separator      :: _Path_Separator      // OS-Specific
-Path_List_Separator :: _Path_List_Separator // OS-Specific
+Path_Separator        :: _Path_Separator        // OS-Specific
+Path_Separator_String :: _Path_Separator_String // OS-Specific
+Path_List_Separator   :: _Path_List_Separator   // OS-Specific
 
+@(require_results)
 is_path_separator :: proc(c: byte) -> bool {
 	return _is_path_separator(c)
 }
@@ -25,6 +27,7 @@ remove_all :: proc(path: string) -> Error {
 
 
 getwd :: get_working_directory
+@(require_results)
 get_working_directory :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
 	return _getwd(allocator)
 }

core/os/os2/path_linux.odin

@@ -1,13 +1,13 @@
 //+private
 package os2
 
-import "core:strings"
 import "core:strconv"
 import "base:runtime"
 import "core:sys/unix"
 
-_Path_Separator      :: '/'
-_Path_List_Separator :: ':'
+_Path_Separator        :: '/'
+_Path_Separator_String :: "/"
+_Path_List_Separator   :: ':'
 
 _S_IFMT   :: 0o170000 // Type of file mask
 _S_IFIFO  :: 0o010000 // Named pipe (fifo)
@@ -31,7 +31,8 @@ _mkdir :: proc(path: string, perm: File_Mode) -> Error {
 		return .Invalid_Argument
 	}
 
-	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	path_cstr := temp_cstring(path) or_return
 	return _ok_or_error(unix.sys_mkdir(path_cstr, uint(perm & 0o777)))
 }
 
@@ -71,6 +72,8 @@ _mkdir_all :: proc(path: string, perm: File_Mode) -> Error {
 		return .Invalid_Argument
 	}
 
+	TEMP_ALLOCATOR_GUARD()
+
 	// need something we can edit, and use to generate cstrings
 	allocated: bool
 	path_bytes: []u8
@@ -78,7 +81,7 @@ _mkdir_all :: proc(path: string, perm: File_Mode) -> Error {
 		allocated = true
 		path_bytes = make([]u8, len(path) + 1)
 	} else {
-		path_bytes = make([]u8, len(path) + 1, context.temp_allocator)
+		path_bytes = make([]u8, len(path) + 1, temp_allocator())
 	}
 
 	// NULL terminate the byte slice to make it a valid cstring
@@ -176,7 +179,8 @@ _remove_all :: proc(path: string) -> Error {
 		return nil
 	}
 
-	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	TEMP_ALLOCATOR_GUARD()
+	path_cstr := temp_cstring(path) or_return
 
 	fd := unix.sys_open(path_cstr, _OPENDIR_FLAGS)
 	switch fd {
@@ -202,7 +206,7 @@ _getwd :: proc(allocator: runtime.Allocator) -> (string, Error) {
 		#no_bounds_check res := unix.sys_getcwd(&buf[0], uint(len(buf)))
 
 		if res >= 0 {
-			return strings.string_from_null_terminated_ptr(&buf[0], len(buf)), nil
+			return string_from_null_terminated_bytes(buf[:]), nil
 		}
 		if res != -ERANGE {
 			return "", _get_platform_error(res)
@@ -213,7 +217,7 @@ _getwd :: proc(allocator: runtime.Allocator) -> (string, Error) {
 }
 
 _setwd :: proc(dir: string) -> Error {
-	dir_cstr := strings.clone_to_cstring(dir, context.temp_allocator)
+	dir_cstr := temp_cstring(dir) or_return
 	return _ok_or_error(unix.sys_chdir(dir_cstr))
 }
 

core/os/os2/path_windows.odin

@@ -3,10 +3,10 @@ package os2
 
 import win32 "core:sys/windows"
 import "base:runtime"
-import "core:strings"
 
-_Path_Separator      :: '\\'
-_Path_List_Separator :: ';'
+_Path_Separator        :: '\\'
+_Path_Separator_String :: "\\"
+_Path_List_Separator   :: ';'
 
 _is_path_separator :: proc(c: byte) -> bool {
 	return c == '\\' || c == '/'
@@ -23,7 +23,7 @@ _mkdir_all :: proc(path: string, perm: File_Mode) -> Error {
 	fix_root_directory :: proc(p: string) -> (s: string, allocated: bool, err: runtime.Allocator_Error) {
 		if len(p) == len(`\\?\c:`) {
 			if is_path_separator(p[0]) && is_path_separator(p[1]) && p[2] == '?' && is_path_separator(p[3]) && p[5] == ':' {
-				s = strings.concatenate({p, `\`}, _file_allocator()) or_return
+				s = concatenate({p, `\`}, file_allocator()) or_return
 				allocated = true
 				return
 			}
@@ -31,9 +31,9 @@ _mkdir_all :: proc(path: string, perm: File_Mode) -> Error {
 		return p, false, nil
 	}
 
-	_TEMP_ALLOCATOR_GUARD()
+	TEMP_ALLOCATOR_GUARD()
 
-	dir, err := stat(path, _temp_allocator())
+	dir, err := stat(path, temp_allocator())
 	if err == nil {
 		if dir.is_directory {
 			return nil
@@ -54,14 +54,14 @@ _mkdir_all :: proc(path: string, perm: File_Mode) -> Error {
 	if j > 1 {
 		new_path, allocated := fix_root_directory(path[:j-1]) or_return
 		defer if allocated {
-			delete(new_path, _file_allocator())
+			delete(new_path, file_allocator())
 		}
 		mkdir_all(new_path, perm) or_return
 	}
 
 	err = mkdir(path, perm)
 	if err != nil {
-		dir1, err1 := lstat(path, _temp_allocator())
+		dir1, err1 := lstat(path, temp_allocator())
 		if err1 == nil && dir1.is_directory {
 			return nil
 		}
@@ -127,10 +127,10 @@ _fix_long_path_internal :: proc(path: string) -> string {
 		return path
 	}
 
-	_TEMP_ALLOCATOR_GUARD()
+	TEMP_ALLOCATOR_GUARD()
 
 	PREFIX :: `\\?`
-	path_buf := make([]byte, len(PREFIX)+len(path)+1, _temp_allocator())
+	path_buf := make([]byte, len(PREFIX)+len(path)+1, temp_allocator())
 	copy(path_buf, PREFIX)
 	n := len(path)
 	r, w := 0, len(PREFIX)

core/os/os2/pipe.odin

@@ -1,5 +1,6 @@
 package os2
 
+@(require_results)
 pipe :: proc() -> (r, w: ^File, err: Error) {
 	return _pipe()
 }

core/os/os2/stat.odin

@@ -3,6 +3,8 @@ package os2
 import "core:time"
 import "base:runtime"
 
+Fstat_Callback :: proc(f: ^File, allocator: runtime.Allocator) -> (File_Info, Error)
+
 File_Info :: struct {
 	fullpath:          string,
 	name:              string,
@@ -25,20 +27,27 @@ file_info_delete :: proc(fi: File_Info, allocator: runtime.Allocator) {
 	delete(fi.fullpath, allocator)
 }
 
+@(require_results)
 fstat :: proc(f: ^File, allocator: runtime.Allocator) -> (File_Info, Error) {
+	if f != nil && f.user_fstat != nil {
+		return f->user_fstat(allocator)
+	}
 	return _fstat(f, allocator)
 }
 
+@(require_results)
 stat :: proc(name: string, allocator: runtime.Allocator) -> (File_Info, Error) {
 	return _stat(name, allocator)
 }
 
 lstat :: stat_do_not_follow_links
+@(require_results)
 stat_do_not_follow_links :: proc(name: string, allocator: runtime.Allocator) -> (File_Info, Error) {
 	return _lstat(name, allocator)
 }
 
 
+@(require_results)
 same_file :: proc(fi1, fi2: File_Info) -> bool {
 	return _same_file(fi1, fi2)
 }

core/os/os2/stat_linux.odin

@@ -3,7 +3,6 @@ package os2
 
 import "core:time"
 import "base:runtime"
-import "core:strings"
 import "core:sys/unix"
 import "core:path/filepath"
 
@@ -112,8 +111,9 @@ _fstat_internal :: proc(fd: int, allocator: runtime.Allocator) -> (File_Info, Er
 }
 
 // NOTE: _stat and _lstat are using _fstat to avoid a race condition when populating fullpath
-_stat :: proc(name: string, allocator: runtime.Allocator) -> (File_Info, Error) {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+_stat :: proc(name: string, allocator: runtime.Allocator) -> (fi: File_Info, err: Error) {
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr := temp_cstring(name) or_return
 
 	fd := unix.sys_open(name_cstr, _O_RDONLY)
 	if fd < 0 {
@@ -123,8 +123,9 @@ _stat :: proc(name: string, allocator: runtime.Allocator) -> (File_Info, Error)
 	return _fstat_internal(fd, allocator)
 }
 
-_lstat :: proc(name: string, allocator: runtime.Allocator) -> (File_Info, Error) {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
+_lstat :: proc(name: string, allocator: runtime.Allocator) -> (fi: File_Info, err: Error) {
+	TEMP_ALLOCATOR_GUARD()
+	name_cstr := temp_cstring(name) or_return
 
 	fd := unix.sys_open(name_cstr, _O_RDONLY | _O_PATH | _O_NOFOLLOW)
 	if fd < 0 {
@@ -137,9 +138,3 @@ _lstat :: proc(name: string, allocator: runtime.Allocator) -> (File_Info, Error)
 _same_file :: proc(fi1, fi2: File_Info) -> bool {
 	return fi1.fullpath == fi2.fullpath
 }
-
-_stat_internal :: proc(name: string) -> (s: _Stat, res: int) {
-	name_cstr := strings.clone_to_cstring(name, context.temp_allocator)
-	res = unix.sys_stat(name_cstr, &s)
-	return
-}

core/os/os2/stat_windows.odin

@@ -46,15 +46,15 @@ full_path_from_name :: proc(name: string, allocator: runtime.Allocator) -> (path
 	if name == "" {
 		name = "."
 	}
-	_TEMP_ALLOCATOR_GUARD()
+	TEMP_ALLOCATOR_GUARD()
 
-	p := win32.utf8_to_utf16(name, _temp_allocator())
+	p := win32.utf8_to_utf16(name, temp_allocator())
 
 	n := win32.GetFullPathNameW(raw_data(p), 0, nil, nil)
 	if n == 0 {
 		return "", _get_platform_error()
 	}
-	buf := make([]u16, n+1, _temp_allocator())
+	buf := make([]u16, n+1, temp_allocator())
 	n = win32.GetFullPathNameW(raw_data(p), u32(len(buf)), raw_data(buf), nil)
 	if n == 0 {
 		return "", _get_platform_error()
@@ -131,8 +131,8 @@ _cleanpath_from_handle :: proc(f: ^File, allocator: runtime.Allocator) -> (strin
 	if n == 0 {
 		return "", _get_platform_error()
 	}
-	_TEMP_ALLOCATOR_GUARD()
-	buf := make([]u16, max(n, 260)+1, _temp_allocator())
+	TEMP_ALLOCATOR_GUARD()
+	buf := make([]u16, max(n, 260)+1, temp_allocator())
 	n = win32.GetFinalPathNameByHandleW(h, raw_data(buf), u32(len(buf)), 0)
 	return _cleanpath_from_buf(buf[:n], allocator)
 }
@@ -147,8 +147,8 @@ _cleanpath_from_handle_u16 :: proc(f: ^File) -> ([]u16, Error) {
 	if n == 0 {
 		return nil, _get_platform_error()
 	}
-	_TEMP_ALLOCATOR_GUARD()
-	buf := make([]u16, max(n, 260)+1, _temp_allocator())
+	TEMP_ALLOCATOR_GUARD()
+	buf := make([]u16, max(n, 260)+1, temp_allocator())
 	n = win32.GetFinalPathNameByHandleW(h, raw_data(buf), u32(len(buf)), 0)
 	return _cleanpath_strip_prefix(buf[:n]), nil
 }

core/os/os2/temp_file.odin

@@ -2,16 +2,96 @@ package os2
 
 import "base:runtime"
 
-create_temp_file :: proc(dir, pattern: string) -> (^File, Error) {
-	return _create_temp(dir, pattern)
+@(private="file")
+MAX_ATTEMPTS :: 1<<13 // Should be enough for everyone, right?
+
+// Creates a new temperatory file in the directory `dir`.
+//
+// Opens the file for reading and writing, with 0o666 permissions, and returns the new `^File`.
+// The filename is generated by taking a pattern, and adding a randomized string to the end.
+// If the pattern includes an "*", the random string replaces the last "*".
+// If `dir` is an empty tring, `temp_directory()` will be used.
+//
+// The caller must `close` the file once finished with.
+@(require_results)
+create_temp_file :: proc(dir, pattern: string) -> (f: ^File, err: Error) {
+	TEMP_ALLOCATOR_GUARD()
+	dir := dir if dir != "" else temp_directory(temp_allocator()) or_return
+	prefix, suffix := _prefix_and_suffix(pattern) or_return
+	prefix = temp_join_path(dir, prefix) or_return
+
+	rand_buf: [32]byte
+	name_buf := make([]byte, len(prefix)+len(rand_buf)+len(suffix), temp_allocator())
+
+	attempts := 0
+	for {
+		name := concatenate_strings_from_buffer(name_buf[:], prefix, random_string(rand_buf[:]), suffix)
+		f, err = open(name, {.Read, .Write, .Create, .Excl}, File_Mode(0o666))
+		if err == .Exist {
+			close(f)
+			attempts += 1
+			if attempts < MAX_ATTEMPTS {
+				continue
+			}
+			return nil, err
+		}
+		return f, err
+	}
 }
 
 mkdir_temp :: make_directory_temp
-make_directory_temp :: proc(dir, pattern: string, allocator: runtime.Allocator) -> (string, Error) {
-	return _mkdir_temp(dir, pattern, allocator)
+// Creates a new temporary directory in the directory `dir`, and returns the path of the new directory.
+//
+// The directory name is generated by taking a pattern, and adding a randomized string to the end.
+// If the pattern includes an "*", the random string replaces the last "*".
+// If `dir` is an empty tring, `temp_directory()` will be used.
+@(require_results)
+make_directory_temp :: proc(dir, pattern: string, allocator: runtime.Allocator) -> (temp_path: string, err: Error) {
+	TEMP_ALLOCATOR_GUARD()
+	dir := dir if dir != "" else temp_directory(temp_allocator()) or_return
+	prefix, suffix := _prefix_and_suffix(pattern) or_return
+	prefix = temp_join_path(dir, prefix) or_return
+
+	rand_buf: [32]byte
+	name_buf := make([]byte, len(prefix)+len(rand_buf)+len(suffix), temp_allocator())
+
+	attempts := 0
+	for {
+		name := concatenate_strings_from_buffer(name_buf[:], prefix, random_string(rand_buf[:]), suffix)
+		err = make_directory(name, 0o700)
+		if err == nil {
+			return clone_string(name, allocator)
+		}
+		if err == .Exist {
+			attempts += 1
+			if attempts < MAX_ATTEMPTS {
+				continue
+			}
+			return "", err
+		}
+		if err == .Not_Exist {
+			if _, serr := stat(dir, temp_allocator()); serr == .Not_Exist {
+				return "", serr
+			}
+		}
+		return "", err
+	}
+
 }
 
 temp_dir :: temp_directory
+@(require_results)
 temp_directory :: proc(allocator: runtime.Allocator) -> (string, Error) {
 	return _temp_dir(allocator)
 }
+
+
+
+@(private="file")
+temp_join_path :: proc(dir, name: string) -> (string, runtime.Allocator_Error) {
+	if len(dir) > 0 && is_path_separator(dir[len(dir)-1]) {
+		return concatenate({dir, name}, temp_allocator(),)
+	}
+
+	return concatenate({dir, Path_Separator_String, name}, temp_allocator())
+}

core/os/os2/temp_file_linux.odin

@@ -4,16 +4,6 @@ package os2
 import "base:runtime"
 
 
-_create_temp :: proc(dir, pattern: string) -> (^File, Error) {
-	//TODO
-	return nil, nil
-}
-
-_mkdir_temp :: proc(dir, pattern: string, allocator: runtime.Allocator) -> (string, Error) {
-	//TODO
-	return "", nil
-}
-
 _temp_dir :: proc(allocator: runtime.Allocator) -> (string, Error) {
 	//TODO
 	return "", nil

core/os/os2/temp_file_windows.odin

@@ -4,22 +4,14 @@ package os2
 import "base:runtime"
 import win32 "core:sys/windows"
 
-_create_temp :: proc(dir, pattern: string) -> (^File, Error) {
-	return nil, nil
-}
-
-_mkdir_temp :: proc(dir, pattern: string, allocator: runtime.Allocator) -> (string, Error) {
-	return "", nil
-}
-
 _temp_dir :: proc(allocator: runtime.Allocator) -> (string, runtime.Allocator_Error) {
 	n := win32.GetTempPathW(0, nil)
 	if n == 0 {
 		return "", nil
 	}
-	_TEMP_ALLOCATOR_GUARD()
+	TEMP_ALLOCATOR_GUARD()
 
-	b := make([]u16, max(win32.MAX_PATH, n), _temp_allocator())
+	b := make([]u16, max(win32.MAX_PATH, n), temp_allocator())
 	n = win32.GetTempPathW(u32(len(b)), raw_data(b))
 
 	if n == 3 && b[1] == ':' && b[2] == '\\' {

core/os/os2/user.odin

@@ -1,19 +1,19 @@
 package os2
 
-import "core:strings"
 import "base:runtime"
 
+@(require_results)
 user_cache_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
 	#partial switch ODIN_OS {
 	case .Windows:
 		dir = get_env("LocalAppData", allocator)
 		if dir != "" {
-			dir = strings.clone(dir, allocator) or_return
+			dir = clone_string(dir, allocator) or_return
 		}
 	case .Darwin:
 		dir = get_env("HOME", allocator)
 		if dir != "" {
-			dir = strings.concatenate({dir, "/Library/Caches"}, allocator) or_return
+			dir = concatenate({dir, "/Library/Caches"}, allocator) or_return
 		}
 	case: // All other UNIX systems
 		dir = get_env("XDG_CACHE_HOME", allocator)
@@ -22,7 +22,7 @@ user_cache_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error
 			if dir == "" {
 				return
 			}
-			dir = strings.concatenate({dir, "/.cache"}, allocator) or_return
+			dir = concatenate({dir, "/.cache"}, allocator) or_return
 		}
 	}
 	if dir == "" {
@@ -31,17 +31,18 @@ user_cache_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error
 	return
 }
 
+@(require_results)
 user_config_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
 	#partial switch ODIN_OS {
 	case .Windows:
 		dir = get_env("AppData", allocator)
 		if dir != "" {
-			dir = strings.clone(dir, allocator) or_return
+			dir = clone_string(dir, allocator) or_return
 		}
 	case .Darwin:
 		dir = get_env("HOME", allocator)
 		if dir != "" {
-			dir = strings.concatenate({dir, "/Library/Application Support"}, allocator) or_return
+			dir = concatenate({dir, "/Library/Application Support"}, allocator) or_return
 		}
 	case: // All other UNIX systems
 		dir = get_env("XDG_CACHE_HOME", allocator)
@@ -50,7 +51,7 @@ user_config_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Erro
 			if dir == "" {
 				return
 			}
-			dir = strings.concatenate({dir, "/.config"}, allocator) or_return
+			dir = concatenate({dir, "/.config"}, allocator) or_return
 		}
 	}
 	if dir == "" {
@@ -59,6 +60,7 @@ user_config_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Erro
 	return
 }
 
+@(require_results)
 user_home_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
 	env := "HOME"
 	#partial switch ODIN_OS {

core/os/os_netbsd.odin

@@ -0,0 +1,780 @@
+package os
+
+foreign import dl "system:dl"
+foreign import libc "system:c"
+
+import "base:runtime"
+import "core:strings"
+import "core:sys/unix"
+import "core:c"
+
+Handle :: distinct i32
+File_Time :: distinct u64
+Errno :: distinct i32
+
+INVALID_HANDLE :: ~Handle(0)
+
+ERROR_NONE:     Errno : 0 		/* No error */
+EPERM:          Errno : 1		/* Operation not permitted */
+ENOENT:         Errno : 2		/* No such file or directory */
+EINTR:          Errno : 4		/* Interrupted system call */
+ESRCH:          Errno : 3		/* No such process */
+EIO:            Errno : 5		/* Input/output error */
+ENXIO:          Errno : 6		/* Device not configured */
+E2BIG:          Errno : 7		/* Argument list too long */
+ENOEXEC:        Errno : 8		/* Exec format error */
+EBADF:          Errno : 9		/* Bad file descriptor */
+ECHILD:         Errno : 10		/* No child processes */
+EDEADLK:        Errno : 11		/* Resource deadlock avoided. 11 was EAGAIN */
+ENOMEM:         Errno : 12		/* Cannot allocate memory */
+EACCES:         Errno : 13		/* Permission denied */
+EFAULT:         Errno : 14		/* Bad address */
+ENOTBLK:        Errno : 15		/* Block device required */
+EBUSY:          Errno : 16		/* Device busy */
+EEXIST:         Errno : 17		/* File exists */
+EXDEV:          Errno : 18		/* Cross-device link */
+ENODEV:         Errno : 19		/* Operation not supported by device */
+ENOTDIR:        Errno : 20		/* Not a directory */
+EISDIR:         Errno : 21		/* Is a directory */
+EINVAL:         Errno : 22		/* Invalid argument */
+ENFILE:         Errno : 23		/* Too many open files in system */
+EMFILE:         Errno : 24		/* Too many open files */
+ENOTTY:         Errno : 25		/* Inappropriate ioctl for device */
+ETXTBSY:        Errno : 26		/* Text file busy */
+EFBIG:          Errno : 27		/* File too large */
+ENOSPC:         Errno : 28		/* No space left on device */
+ESPIPE:         Errno : 29		/* Illegal seek */
+EROFS:          Errno : 30		/* Read-only file system */
+EMLINK:         Errno : 31		/* Too many links */
+EPIPE:          Errno : 32		/* Broken pipe */
+
+/* math software */
+EDOM:           Errno : 33		/* Numerical argument out of domain */
+ERANGE:         Errno : 34		/* Result too large or too small */
+
+/* non-blocking and interrupt i/o */
+EAGAIN:         Errno : 35		/* Resource temporarily unavailable */
+EWOULDBLOCK:    Errno : EAGAIN	/* Operation would block */
+EINPROGRESS:    Errno : 36		/* Operation now in progress */
+EALREADY:       Errno : 37		/* Operation already in progress */
+
+/* ipc/network software -- argument errors */
+ENOTSOCK:       Errno : 38		/* Socket operation on non-socket */
+EDESTADDRREQ:   Errno : 39		/* Destination address required */
+EMSGSIZE:       Errno : 40		/* Message too long */
+EPROTOTYPE:     Errno : 41		/* Protocol wrong type for socket */
+ENOPROTOOPT:    Errno : 42		/* Protocol option not available */
+EPROTONOSUPPORT:    Errno : 43		/* Protocol not supported */
+ESOCKTNOSUPPORT:    Errno : 44		/* Socket type not supported */
+EOPNOTSUPP:     Errno : 45		/* Operation not supported */
+EPFNOSUPPORT:   Errno : 46		/* Protocol family not supported */
+EAFNOSUPPORT:   Errno : 47		/* Address family not supported by protocol family */
+EADDRINUSE:     Errno : 48		/* Address already in use */
+EADDRNOTAVAIL:  Errno : 49		/* Can't assign requested address */
+
+/* ipc/network software -- operational errors */
+ENETDOWN:       Errno : 50		/* Network is down */
+ENETUNREACH:    Errno : 51		/* Network is unreachable */
+ENETRESET:      Errno : 52		/* Network dropped connection on reset */
+ECONNABORTED:   Errno : 53		/* Software caused connection abort */
+ECONNRESET:     Errno : 54		/* Connection reset by peer */
+ENOBUFS:        Errno : 55		/* No buffer space available */
+EISCONN:        Errno : 56		/* Socket is already connected */
+ENOTCONN:       Errno : 57		/* Socket is not connected */
+ESHUTDOWN:      Errno : 58		/* Can't send after socket shutdown */
+ETOOMANYREFS:   Errno : 59		/* Too many references: can't splice */
+ETIMEDOUT:      Errno : 60		/* Operation timed out */
+ECONNREFUSED:   Errno : 61		/* Connection refused */
+
+ELOOP:          Errno : 62		/* Too many levels of symbolic links */
+ENAMETOOLONG:   Errno : 63		/* File name too long */
+
+/* should be rearranged */
+EHOSTDOWN:      Errno : 64		/* Host is down */
+EHOSTUNREACH:   Errno : 65		/* No route to host */
+ENOTEMPTY:      Errno : 66		/* Directory not empty */
+
+/* quotas & mush */
+EPROCLIM:       Errno : 67		/* Too many processes */
+EUSERS:         Errno : 68		/* Too many users */
+EDQUOT:         Errno : 69		/* Disc quota exceeded */
+
+/* Network File System */
+ESTALE:         Errno : 70		/* Stale NFS file handle */
+EREMOTE:        Errno : 71		/* Too many levels of remote in path */
+EBADRPC:        Errno : 72		/* RPC struct is bad */
+ERPCMISMATCH:   Errno : 73		/* RPC version wrong */
+EPROGUNAVAIL:   Errno : 74		/* RPC prog. not avail */
+EPROGMISMATCH:  Errno : 75		/* Program version wrong */
+EPROCUNAVAIL:   Errno : 76		/* Bad procedure for program */
+
+ENOLCK:         Errno : 77		/* No locks available */
+ENOSYS:         Errno : 78		/* Function not implemented */
+
+EFTYPE:         Errno : 79		/* Inappropriate file type or format */
+EAUTH:          Errno : 80		/* Authentication error */
+ENEEDAUTH:      Errno : 81		/* Need authenticator */
+
+/* SystemV IPC */
+EIDRM:          Errno : 82		/* Identifier removed */
+ENOMSG:         Errno : 83		/* No message of desired type */
+EOVERFLOW:      Errno : 84		/* Value too large to be stored in data type */
+
+/* Wide/multibyte-character handling, ISO/IEC 9899/AMD1:1995 */
+EILSEQ:         Errno : 85		/* Illegal byte sequence */
+
+/* From IEEE Std 1003.1-2001 */
+/* Base, Realtime, Threads or Thread Priority Scheduling option errors */
+ENOTSUP:        Errno : 86		/* Not supported */
+
+/* Realtime option errors */
+ECANCELED:      Errno : 87		/* Operation canceled */
+
+/* Realtime, XSI STREAMS option errors */
+EBADMSG:        Errno : 88		/* Bad or Corrupt message */
+
+/* XSI STREAMS option errors  */
+ENODATA:        Errno : 89		/* No message available */
+ENOSR:          Errno : 90		/* No STREAM resources */
+ENOSTR:         Errno : 91		/* Not a STREAM */
+ETIME:          Errno : 92		/* STREAM ioctl timeout */
+
+/* File system extended attribute errors */
+ENOATTR:        Errno : 93		/* Attribute not found */
+
+/* Realtime, XSI STREAMS option errors */
+EMULTIHOP:      Errno : 94		/* Multihop attempted */
+ENOLINK:        Errno : 95		/* Link has been severed */
+EPROTO:         Errno : 96		/* Protocol error */
+
+/* Robust mutexes */
+EOWNERDEAD:     Errno : 97		/* Previous owner died */
+ENOTRECOVERABLE:    Errno : 98		/* State not recoverable */
+
+ELAST:          Errno : 98		/* Must equal largest errno */
+
+/* end of errno */
+
+O_RDONLY   :: 0x000000000
+O_WRONLY   :: 0x000000001
+O_RDWR     :: 0x000000002
+O_CREATE   :: 0x000000200
+O_EXCL     :: 0x000000800
+O_NOCTTY   :: 0x000008000
+O_TRUNC    :: 0x000000400
+O_NONBLOCK :: 0x000000004
+O_APPEND   :: 0x000000008
+O_SYNC     :: 0x000000080
+O_ASYNC    :: 0x000000040
+O_CLOEXEC  :: 0x000400000
+
+RTLD_LAZY         :: 0x001
+RTLD_NOW          :: 0x002
+RTLD_GLOBAL       :: 0x100
+RTLD_LOCAL        :: 0x200
+RTLD_TRACE        :: 0x200
+RTLD_NODELETE     :: 0x01000
+RTLD_NOLOAD       :: 0x02000
+
+F_GETPATH :: 15
+
+MAX_PATH :: 1024
+MAXNAMLEN :: 511
+
+args := _alloc_command_line_arguments()
+
+Unix_File_Time :: struct {
+	seconds: time_t,
+	nanoseconds: c.long,
+}
+
+dev_t :: u64
+ino_t :: u64
+nlink_t :: u32
+off_t :: i64
+mode_t :: u16
+pid_t :: u32
+uid_t :: u32
+gid_t :: u32
+blkcnt_t :: i64
+blksize_t :: i32
+fflags_t :: u32
+time_t :: i64
+
+OS_Stat :: struct {
+	device_id: dev_t,
+	mode: mode_t,
+	_padding0: i16,
+	ino: ino_t,
+	nlink: nlink_t,
+	uid: uid_t,
+	gid: gid_t,
+	_padding1: i32,
+	rdev: dev_t,
+
+	last_access: Unix_File_Time,
+	modified: Unix_File_Time,
+	status_change: Unix_File_Time,
+	birthtime: Unix_File_Time,
+
+	size: off_t,
+	blocks: blkcnt_t,
+	block_size: blksize_t,
+
+	flags: fflags_t,
+	gen: u32,
+	lspare: [2]u32,
+}
+
+Dirent :: struct {
+	ino: ino_t,
+	reclen: u16,
+	namlen: u16,
+	type: u8,
+	name: [MAXNAMLEN + 1]byte,
+}
+
+Dir :: distinct rawptr // DIR*
+
+// File type
+S_IFMT   :: 0o170000 // Type of file mask
+S_IFIFO  :: 0o010000 // Named pipe (fifo)
+S_IFCHR  :: 0o020000 // Character special
+S_IFDIR  :: 0o040000 // Directory
+S_IFBLK  :: 0o060000 // Block special
+S_IFREG  :: 0o100000 // Regular
+S_IFLNK  :: 0o120000 // Symbolic link
+S_IFSOCK :: 0o140000 // Socket
+
+// File mode
+// Read, write, execute/search by owner
+S_IRWXU :: 0o0700 // RWX mask for owner
+S_IRUSR :: 0o0400 // R for owner
+S_IWUSR :: 0o0200 // W for owner
+S_IXUSR :: 0o0100 // X for owner
+
+// Read, write, execute/search by group
+S_IRWXG :: 0o0070 // RWX mask for group
+S_IRGRP :: 0o0040 // R for group
+S_IWGRP :: 0o0020 // W for group
+S_IXGRP :: 0o0010 // X for group
+
+// Read, write, execute/search by others
+S_IRWXO :: 0o0007 // RWX mask for other
+S_IROTH :: 0o0004 // R for other
+S_IWOTH :: 0o0002 // W for other
+S_IXOTH :: 0o0001 // X for other
+
+S_ISUID :: 0o4000 // Set user id on execution
+S_ISGID :: 0o2000 // Set group id on execution
+S_ISVTX :: 0o1000 // Directory restrcted delete
+
+S_ISLNK  :: #force_inline proc "contextless" (m: mode_t) -> bool { return (m & S_IFMT) == S_IFLNK  }
+S_ISREG  :: #force_inline proc "contextless" (m: mode_t) -> bool { return (m & S_IFMT) == S_IFREG  }
+S_ISDIR  :: #force_inline proc "contextless" (m: mode_t) -> bool { return (m & S_IFMT) == S_IFDIR  }
+S_ISCHR  :: #force_inline proc "contextless" (m: mode_t) -> bool { return (m & S_IFMT) == S_IFCHR  }
+S_ISBLK  :: #force_inline proc "contextless" (m: mode_t) -> bool { return (m & S_IFMT) == S_IFBLK  }
+S_ISFIFO :: #force_inline proc "contextless" (m: mode_t) -> bool { return (m & S_IFMT) == S_IFIFO  }
+S_ISSOCK :: #force_inline proc "contextless" (m: mode_t) -> bool { return (m & S_IFMT) == S_IFSOCK }
+
+F_OK :: 0 // Test for file existance
+X_OK :: 1 // Test for execute permission
+W_OK :: 2 // Test for write permission
+R_OK :: 4 // Test for read permission
+
+foreign libc {
+	@(link_name="__errno")          __errno_location    :: proc() -> ^c.int ---
+
+	@(link_name="open")             _unix_open          :: proc(path: cstring, flags: c.int, mode: c.int) -> Handle ---
+	@(link_name="close")            _unix_close         :: proc(fd: Handle) -> c.int ---
+	@(link_name="read")             _unix_read          :: proc(fd: Handle, buf: rawptr, size: c.size_t) -> c.ssize_t ---
+	@(link_name="write")            _unix_write         :: proc(fd: Handle, buf: rawptr, size: c.size_t) -> c.ssize_t ---
+	@(link_name="lseek")            _unix_seek          :: proc(fd: Handle, offset: i64, whence: c.int) -> i64 ---
+	@(link_name="getpagesize")      _unix_getpagesize   :: proc() -> c.int ---
+	@(link_name="stat")             _unix_stat          :: proc(path: cstring, stat: ^OS_Stat) -> c.int ---
+	@(link_name="__lstat50")        _unix_lstat         :: proc(path: cstring, sb: ^OS_Stat) -> c.int ---
+	@(link_name="__fstat50")        _unix_fstat         :: proc(fd: Handle, stat: ^OS_Stat) -> c.int ---
+	@(link_name="readlink")         _unix_readlink      :: proc(path: cstring, buf: ^byte, bufsiz: c.size_t) -> c.ssize_t ---
+	@(link_name="access")           _unix_access        :: proc(path: cstring, mask: c.int) -> c.int ---
+	@(link_name="getcwd")           _unix_getcwd        :: proc(buf: cstring, len: c.size_t) -> cstring ---
+	@(link_name="chdir")            _unix_chdir         :: proc(buf: cstring) -> c.int ---
+	@(link_name="rename")           _unix_rename        :: proc(old, new: cstring) -> c.int ---
+	@(link_name="unlink")           _unix_unlink        :: proc(path: cstring) -> c.int ---
+	@(link_name="rmdir")            _unix_rmdir         :: proc(path: cstring) -> c.int ---
+	@(link_name="mkdir")            _unix_mkdir         :: proc(path: cstring, mode: mode_t) -> c.int ---
+	@(link_name="fcntl")            _unix_fcntl         :: proc(fd: Handle, cmd: c.int, arg: uintptr) -> c.int ---
+	
+	@(link_name="fdopendir")        _unix_fdopendir     :: proc(fd: Handle) -> Dir ---
+	@(link_name="closedir")         _unix_closedir      :: proc(dirp: Dir) -> c.int ---
+	@(link_name="rewinddir")        _unix_rewinddir     :: proc(dirp: Dir) ---
+	@(link_name="readdir_r")        _unix_readdir_r     :: proc(dirp: Dir, entry: ^Dirent, result: ^^Dirent) -> c.int ---
+
+	@(link_name="malloc")           _unix_malloc        :: proc(size: c.size_t) -> rawptr ---
+	@(link_name="calloc")           _unix_calloc        :: proc(num, size: c.size_t) -> rawptr ---
+	@(link_name="free")             _unix_free          :: proc(ptr: rawptr) ---
+	@(link_name="realloc")          _unix_realloc       :: proc(ptr: rawptr, size: c.size_t) -> rawptr ---
+	
+	@(link_name="getenv")           _unix_getenv        :: proc(cstring) -> cstring ---
+	@(link_name="realpath")         _unix_realpath      :: proc(path: cstring, resolved_path: rawptr) -> rawptr ---
+	@(link_name="sysctlbyname")     _sysctlbyname       :: proc(path: cstring, oldp: rawptr, oldlenp: rawptr, newp: rawptr, newlen: int) -> c.int ---
+
+	@(link_name="exit")             _unix_exit          :: proc(status: c.int) -> ! ---
+}
+
+foreign dl {
+	@(link_name="dlopen")           _unix_dlopen        :: proc(filename: cstring, flags: c.int) -> rawptr ---
+	@(link_name="dlsym")            _unix_dlsym         :: proc(handle: rawptr, symbol: cstring) -> rawptr ---
+	@(link_name="dlclose")          _unix_dlclose       :: proc(handle: rawptr) -> c.int ---
+	@(link_name="dlerror")          _unix_dlerror       :: proc() -> cstring ---
+}
+
+// NOTE(phix): Perhaps share the following functions with FreeBSD if they turn out to be the same in the end.
+
+is_path_separator :: proc(r: rune) -> bool {
+	return r == '/'
+}
+
+get_last_error :: proc "contextless" () -> int {
+	return int(__errno_location()^)
+}
+
+open :: proc(path: string, flags: int = O_RDONLY, mode: int = 0) -> (Handle, Errno) {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	handle := _unix_open(cstr, c.int(flags), c.int(mode))
+	if handle == -1 {
+		return INVALID_HANDLE, Errno(get_last_error())
+	}
+	return handle, ERROR_NONE
+}
+
+close :: proc(fd: Handle) -> Errno {
+	result := _unix_close(fd)
+	if result == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+// We set a max of 1GB to keep alignment and to be safe.
+@(private)
+MAX_RW :: 1 << 30
+
+read :: proc(fd: Handle, data: []byte) -> (int, Errno) {
+	to_read    := min(c.size_t(len(data)), MAX_RW)
+	bytes_read := _unix_read(fd, &data[0], to_read)
+	if bytes_read == -1 {
+		return -1, Errno(get_last_error())
+	}
+	return int(bytes_read), ERROR_NONE
+}
+
+write :: proc(fd: Handle, data: []byte) -> (int, Errno) {
+	if len(data) == 0 {
+		return 0, ERROR_NONE
+	}
+
+	to_write      := min(c.size_t(len(data)), MAX_RW)
+	bytes_written := _unix_write(fd, &data[0], to_write)
+	if bytes_written == -1 {
+		return -1, Errno(get_last_error())
+	}
+	return int(bytes_written), ERROR_NONE
+}
+
+seek :: proc(fd: Handle, offset: i64, whence: int) -> (i64, Errno) {
+	res := _unix_seek(fd, offset, c.int(whence))
+	if res == -1 {
+		return -1, Errno(get_last_error())
+	}
+	return res, ERROR_NONE
+}
+
+file_size :: proc(fd: Handle) -> (i64, Errno) {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return -1, err
+	}
+	return s.size, ERROR_NONE
+}
+
+rename :: proc(old_path, new_path: string) -> Errno {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+	old_path_cstr := strings.clone_to_cstring(old_path, context.temp_allocator)
+	new_path_cstr := strings.clone_to_cstring(new_path, context.temp_allocator)
+	res := _unix_rename(old_path_cstr, new_path_cstr)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+remove :: proc(path: string) -> Errno {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_unlink(path_cstr)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+make_directory :: proc(path: string, mode: mode_t = 0o775) -> Errno {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_mkdir(path_cstr, mode)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+remove_directory :: proc(path: string) -> Errno {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_rmdir(path_cstr)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+is_file_handle :: proc(fd: Handle) -> bool {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISREG(s.mode)
+}
+
+is_file_path :: proc(path: string, follow_links: bool = true) -> bool {
+	s: OS_Stat
+	err: Errno
+	if follow_links {
+		s, err = _stat(path)
+	} else {
+		s, err = _lstat(path)
+	}
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISREG(s.mode)
+}
+
+is_dir_handle :: proc(fd: Handle) -> bool {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISDIR(s.mode)
+}
+
+is_dir_path :: proc(path: string, follow_links: bool = true) -> bool {
+	s: OS_Stat
+	err: Errno
+	if follow_links {
+		s, err = _stat(path)
+	} else {
+		s, err = _lstat(path)
+	}
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISDIR(s.mode)
+}
+
+is_file :: proc {is_file_path, is_file_handle}
+is_dir :: proc {is_dir_path, is_dir_handle}
+
+exists :: proc(path: string) -> bool {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+	cpath := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_access(cpath, O_RDONLY)
+	return res == 0
+}
+
+fcntl :: proc(fd: int, cmd: int, arg: int) -> (int, Errno) {
+	result := _unix_fcntl(Handle(fd), c.int(cmd), uintptr(arg))
+	if result < 0 {
+		return 0, Errno(get_last_error())
+	}
+	return int(result), ERROR_NONE
+}
+
+// NOTE(bill): Uses startup to initialize it
+
+stdin: Handle  = 0
+stdout: Handle = 1
+stderr: Handle = 2
+
+last_write_time :: proc(fd: Handle) -> (File_Time, Errno) {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return 0, err
+	}
+	modified := s.modified.seconds * 1_000_000_000 + s.modified.nanoseconds
+	return File_Time(modified), ERROR_NONE
+}
+
+last_write_time_by_name :: proc(name: string) -> (File_Time, Errno) {
+	s, err := _stat(name)
+	if err != ERROR_NONE {
+		return 0, err
+	}
+	modified := s.modified.seconds * 1_000_000_000 + s.modified.nanoseconds
+	return File_Time(modified), ERROR_NONE
+}
+
+@private
+_stat :: proc(path: string) -> (OS_Stat, Errno) {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	s: OS_Stat = ---
+	result := _unix_lstat(cstr, &s)
+	if result == -1 {
+		return s, Errno(get_last_error())
+	}
+	return s, ERROR_NONE
+}
+
+@private
+_lstat :: proc(path: string) -> (OS_Stat, Errno) {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	
+	// deliberately uninitialized
+	s: OS_Stat = ---
+	res := _unix_lstat(cstr, &s)
+	if res == -1 {
+		return s, Errno(get_last_error())
+	}
+	return s, ERROR_NONE
+}
+
+@private
+_fstat :: proc(fd: Handle) -> (OS_Stat, Errno) {
+	s: OS_Stat = ---
+	result := _unix_fstat(fd, &s)
+	if result == -1 {
+		return s, Errno(get_last_error())
+	}
+	return s, ERROR_NONE
+}
+
+@private
+_fdopendir :: proc(fd: Handle) -> (Dir, Errno) {
+	dirp := _unix_fdopendir(fd)
+	if dirp == cast(Dir)nil {
+		return nil, Errno(get_last_error())
+	}
+	return dirp, ERROR_NONE
+}
+
+@private
+_closedir :: proc(dirp: Dir) -> Errno {
+	rc := _unix_closedir(dirp)
+	if rc != 0 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+@private
+_rewinddir :: proc(dirp: Dir) {
+	_unix_rewinddir(dirp)
+}
+
+@private
+_readdir :: proc(dirp: Dir) -> (entry: Dirent, err: Errno, end_of_stream: bool) {
+	result: ^Dirent
+	rc := _unix_readdir_r(dirp, &entry, &result)
+
+	if rc != 0 {
+		err = Errno(get_last_error())
+		return
+	}
+	err = ERROR_NONE
+
+	if result == nil {
+		end_of_stream = true
+		return
+	}
+
+	return
+}
+
+@private
+_readlink :: proc(path: string) -> (string, Errno) {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD(ignore = context.temp_allocator == context.allocator)
+
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+
+	bufsz : uint = MAX_PATH
+	buf := make([]byte, MAX_PATH)
+	for {
+		rc := _unix_readlink(path_cstr, &(buf[0]), bufsz)
+		if rc == -1 {
+			delete(buf)
+			return "", Errno(get_last_error())
+		} else if rc == int(bufsz) {
+			bufsz += MAX_PATH
+			delete(buf)
+			buf = make([]byte, bufsz)
+		} else {
+			return strings.string_from_ptr(&buf[0], rc), ERROR_NONE
+		}	
+	}
+
+	return "", Errno{}
+}
+
+absolute_path_from_handle :: proc(fd: Handle) -> (string, Errno) {
+	buf: [MAX_PATH]byte
+	_, err := fcntl(int(fd), F_GETPATH, int(uintptr(&buf[0])))
+	if err != ERROR_NONE {
+		return "", err
+	}
+
+	path := strings.clone_from_cstring(cstring(&buf[0]))
+	return path, err
+}
+
+absolute_path_from_relative :: proc(rel: string) -> (path: string, err: Errno) {
+	rel := rel
+	if rel == "" {
+		rel = "."
+	}
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD(ignore = context.temp_allocator == context.allocator)
+
+	rel_cstr := strings.clone_to_cstring(rel, context.temp_allocator)
+
+	path_ptr := _unix_realpath(rel_cstr, nil)
+	if path_ptr == nil {
+		return "", Errno(get_last_error())
+	}
+	defer _unix_free(path_ptr)
+
+	path_cstr := transmute(cstring)path_ptr
+	path = strings.clone( string(path_cstr) )
+
+	return path, ERROR_NONE
+}
+
+access :: proc(path: string, mask: int) -> (bool, Errno) {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	result := _unix_access(cstr, c.int(mask))
+	if result == -1 {
+		return false, Errno(get_last_error())
+	}
+	return true, ERROR_NONE
+}
+
+lookup_env :: proc(key: string, allocator := context.allocator) -> (value: string, found: bool) {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD(ignore = context.temp_allocator == allocator)
+
+	path_str := strings.clone_to_cstring(key, context.temp_allocator)
+	cstr := _unix_getenv(path_str)
+	if cstr == nil {
+		return "", false
+	}
+	return strings.clone(string(cstr), allocator), true
+}
+
+get_env :: proc(key: string, allocator := context.allocator) -> (value: string) {
+	value, _ = lookup_env(key, allocator)
+	return
+}
+
+get_current_directory :: proc() -> string {
+	// NOTE(tetra): I would use PATH_MAX here, but I was not able to find
+	// an authoritative value for it across all systems.
+	// The largest value I could find was 4096, so might as well use the page size.
+	page_size := get_page_size()
+	buf := make([dynamic]u8, page_size)
+	#no_bounds_check for {
+		cwd := _unix_getcwd(cstring(&buf[0]), c.size_t(len(buf)))
+		if cwd != nil {
+			return string(cwd)
+		}
+		if Errno(get_last_error()) != ERANGE {
+			delete(buf)
+			return ""
+		}
+		resize(&buf, len(buf)+page_size)
+	}
+	unreachable()
+}
+
+set_current_directory :: proc(path: string) -> (err: Errno) {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_chdir(cstr)
+	if res == -1 do return Errno(get_last_error())
+	return ERROR_NONE
+}
+
+exit :: proc "contextless" (code: int) -> ! {
+	runtime._cleanup_runtime_contextless()
+	_unix_exit(c.int(code))
+}
+
+current_thread_id :: proc "contextless" () -> int {
+	return cast(int) unix.pthread_self()
+}
+
+dlopen :: proc(filename: string, flags: int) -> rawptr {
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+	cstr := strings.clone_to_cstring(filename, context.temp_allocator)
+	handle := _unix_dlopen(cstr, c.int(flags))
+	return handle
+}
+
+dlsym :: proc(handle: rawptr, symbol: string) -> rawptr {
+	assert(handle != nil)
+	runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+	cstr := strings.clone_to_cstring(symbol, context.temp_allocator)
+	proc_handle := _unix_dlsym(handle, cstr)
+	return proc_handle
+}
+
+dlclose :: proc(handle: rawptr) -> bool {
+	assert(handle != nil)
+	return _unix_dlclose(handle) == 0
+}
+
+dlerror :: proc() -> string {
+	return string(_unix_dlerror())
+}
+
+get_page_size :: proc() -> int {
+	// NOTE(tetra): The page size never changes, so why do anything complicated
+	// if we don't have to.
+	@static page_size := -1
+	if page_size != -1 do return page_size
+
+	page_size = int(_unix_getpagesize())
+	return page_size
+}
+
+@(private)
+_processor_core_count :: proc() -> int {
+	count : int = 0
+	count_size := size_of(count)
+	if _sysctlbyname("hw.logicalcpu", &count, &count_size, nil, 0) == 0 {
+		if count > 0 {
+			return count
+		}
+	}
+
+	return 1
+}
+
+_alloc_command_line_arguments :: proc() -> []string {
+	res := make([]string, len(runtime.args__))
+	for arg, i in runtime.args__ {
+		res[i] = string(arg)
+	}
+	return res
+}

core/os/stat_unix.odin

@@ -1,4 +1,4 @@
-//+build linux, darwin, freebsd, openbsd, haiku
+//+build linux, darwin, freebsd, openbsd, netbsd, haiku
 package os
 
 import "core:time"

core/os/stream.odin

@@ -32,7 +32,7 @@ _file_stream_proc :: proc(stream_data: rawptr, mode: io.Stream_Mode, p: []byte,
 		}
 
 	case .Read_At:
-		when !(ODIN_OS == .FreeBSD || ODIN_OS == .OpenBSD || ODIN_OS == .Haiku) {
+		when !(ODIN_OS == .FreeBSD || ODIN_OS == .OpenBSD || ODIN_OS == .NetBSD || ODIN_OS == .Haiku) {
 			n_int, os_err = read_at(fd, p, offset)
 			n = i64(n_int)
 			if n == 0 && os_err == 0 {
@@ -46,7 +46,7 @@ _file_stream_proc :: proc(stream_data: rawptr, mode: io.Stream_Mode, p: []byte,
 			err = .EOF
 		}
 	case .Write_At:
-		when !(ODIN_OS == .FreeBSD || ODIN_OS == .OpenBSD || ODIN_OS == .Haiku) {
+		when !(ODIN_OS == .FreeBSD || ODIN_OS == .OpenBSD || ODIN_OS == .NetBSD || ODIN_OS == .Haiku) {
 			n_int, os_err = write_at(fd, p, offset)
 			n = i64(n_int)
 			if n == 0 && os_err == 0 {
@@ -60,7 +60,7 @@ _file_stream_proc :: proc(stream_data: rawptr, mode: io.Stream_Mode, p: []byte,
 	case .Destroy:
 		err = .Empty
 	case .Query:
-		when ODIN_OS == .FreeBSD || ODIN_OS == .OpenBSD || ODIN_OS == .Haiku {
+		when ODIN_OS == .FreeBSD || ODIN_OS == .OpenBSD || ODIN_OS == .NetBSD || ODIN_OS == .Haiku {
 			return io.query_utility({.Close, .Flush, .Read, .Write, .Seek, .Size, .Query})
 		} else {
 			return io.query_utility({.Close, .Flush, .Read, .Read_At, .Write, .Write_At, .Seek, .Size, .Query})

core/path/filepath/path_unix.odin

@@ -1,4 +1,4 @@
-//+build linux, darwin, freebsd, openbsd
+//+build linux, darwin, freebsd, openbsd, netbsd
 package filepath
 
 when ODIN_OS == .Darwin {
@@ -61,7 +61,7 @@ when ODIN_OS == .Darwin {
 	foreign libc {
 		@(link_name="__error")          __error :: proc() -> ^i32 ---
 	}
-} else when ODIN_OS == .OpenBSD {
+} else when ODIN_OS == .OpenBSD || ODIN_OS == .NetBSD {
 	@(private)
 	foreign libc {
 		@(link_name="__errno")		__error :: proc() -> ^i32 ---

core/prof/spall/spall_unix.odin

@@ -1,5 +1,5 @@
 //+private
-//+build darwin, freebsd, openbsd
+//+build darwin, freebsd, openbsd, netbsd
 package spall
 
 // Only for types.

core/sync/futex_netbsd.odin

@@ -0,0 +1,74 @@
+//+private
+package sync
+
+import "base:intrinsics"
+import "core:time"
+import "core:c"
+import "core:sys/unix"
+
+foreign import libc "system:c"
+
+FUTEX_PRIVATE_FLAG :: 128
+
+FUTEX_WAIT_PRIVATE :: 0 | FUTEX_PRIVATE_FLAG
+FUTEX_WAKE_PRIVATE :: 1 | FUTEX_PRIVATE_FLAG
+
+EINTR     :: 4		/* Interrupted system call */
+EAGAIN    :: 35		/* Resource temporarily unavailable */
+ETIMEDOUT :: 60		/* Operation timed out */
+
+Time_Spec :: struct {
+	time_sec:  uint,
+	time_nsec: uint,
+}
+
+get_last_error :: proc "contextless" () -> int {
+	foreign libc {
+		__errno :: proc() -> ^c.int ---
+	}
+	return int(__errno()^)
+}
+
+_futex_wait :: proc "contextless" (futex: ^Futex, expected: u32) -> bool {
+	if cast(int) intrinsics.syscall(unix.SYS___futex, uintptr(futex), FUTEX_WAIT_PRIVATE, uintptr(expected), 0, 0, 0) == -1 {
+		switch get_last_error() {
+		case EINTR, EAGAIN:
+			return true
+		case:
+			_panic("futex_wait failure")
+		}	
+	}
+	return true
+}
+
+_futex_wait_with_timeout :: proc "contextless" (futex: ^Futex, expected: u32, duration: time.Duration) -> bool {
+	if duration <= 0 {
+		return false
+	}
+	if cast(int) intrinsics.syscall(unix.SYS___futex, uintptr(futex), FUTEX_WAIT_PRIVATE, uintptr(expected), cast(uintptr) &Time_Spec{
+		time_sec  = cast(uint)(duration / 1e9),
+		time_nsec = cast(uint)(duration % 1e9),
+	}, 0, 0) == -1 {
+		switch get_last_error() {
+		case EINTR, EAGAIN:
+			return true
+		case ETIMEDOUT:
+			return false
+		case:
+			_panic("futex_wait_with_timeout failure")
+		}
+	}
+	return true
+}
+
+_futex_signal :: proc "contextless" (futex: ^Futex) {
+	if cast(int) intrinsics.syscall(unix.SYS___futex, uintptr(futex), FUTEX_WAKE_PRIVATE, 1, 0, 0, 0) == -1 {
+		_panic("futex_wake_single failure")
+	}
+}
+
+_futex_broadcast :: proc "contextless" (futex: ^Futex)  {
+	if cast(int) intrinsics.syscall(unix.SYS___futex, uintptr(futex), FUTEX_WAKE_PRIVATE, uintptr(max(i32)), 0, 0, 0) == -1 {
+		_panic("_futex_wake_all failure")
+	}
+}

core/sync/primitives_netbsd.odin

@@ -0,0 +1,8 @@
+//+private
+package sync
+
+import "core:sys/unix"
+
+_current_thread_id :: proc "contextless" () -> int {
+	return cast(int) unix.pthread_self()
+}

core/sys/info/cpu_intel.odin

@@ -67,8 +67,8 @@ init_cpu_features :: proc "c" () {
 	try_set(&set, .os_xsave,  27, ecx1)
 	try_set(&set, .rdrand,    30, ecx1)
 
-	when ODIN_OS == .FreeBSD || ODIN_OS == .OpenBSD {
-		// xgetbv is an illegal instruction under FreeBSD 13 & OpenBSD 7.1
+	when ODIN_OS == .FreeBSD || ODIN_OS == .OpenBSD || ODIN_OS == .NetBSD {
+		// xgetbv is an illegal instruction under FreeBSD 13, OpenBSD 7.1 and NetBSD 10
 		// return before probing further
 		cpu_features = set
 		return
@@ -133,4 +133,4 @@ init_cpu_name :: proc "c" () {
 		brand = brand[:len(brand) - 1]
 	}
 	cpu_name = brand
-}
+}

core/sys/info/platform_bsd.odin

@@ -1,3 +1,4 @@
+//+build openbsd, netbsd
 package sysinfo
 
 import sys "core:sys/unix"
@@ -10,12 +11,16 @@ version_string_buf: [1024]u8
 
 @(init, private)
 init_os_version :: proc () {
-	os_version.platform = .OpenBSD
+	when ODIN_OS == .NetBSD {
+		os_version.platform = .NetBSD
+	} else {
+		os_version.platform = .OpenBSD
+	}
 
 	kernel_version_buf: [1024]u8
 
 	b := strings.builder_from_bytes(version_string_buf[:])
-	// Retrieve kernel info using `sysctl`, e.g. OpenBSD
+	// Retrieve kernel info using `sysctl`, e.g. OpenBSD and NetBSD
 	mib := []i32{sys.CTL_KERN, sys.KERN_OSTYPE}
 	if !sys.sysctl(mib, &kernel_version_buf) {
 		return
@@ -68,4 +73,4 @@ init_ram :: proc() {
 	if sys.sysctl(mib, &mem_size) {
 		ram.total_ram = int(mem_size)
 	}
-}
+}

core/sys/unix/pthread_netbsd.odin

@@ -0,0 +1,102 @@
+package unix
+
+import "core:c"
+
+pthread_t :: distinct u64
+
+SEM_T_SIZE :: 8
+
+PTHREAD_CONDATTR_T_SIZE    :: 16
+PTHREAD_MUTEXATTR_T_SIZE   :: 16
+PTHREAD_RWLOCKATTR_T_SIZE  :: 16
+PTHREAD_BARRIERATTR_T_SIZE :: 16
+
+PTHREAD_COND_T_SIZE    :: 40
+PTHREAD_MUTEX_T_SIZE   :: 48
+PTHREAD_RWLOCK_T_SIZE  :: 64
+PTHREAD_BARRIER_T_SIZE :: 48
+PTHREAD_ATTR_T_SIZE    :: 16
+
+pthread_cond_t :: struct #align(8) {
+	_: [PTHREAD_COND_T_SIZE] c.char,
+}
+
+pthread_mutex_t :: struct #align(8) {
+	_: [PTHREAD_MUTEX_T_SIZE] c.char,
+}
+
+pthread_rwlock_t :: struct #align(8) {
+	_: [PTHREAD_RWLOCK_T_SIZE] c.char,
+}
+
+pthread_barrier_t :: struct #align(8) {
+	_: [PTHREAD_BARRIER_T_SIZE] c.char,
+}
+
+pthread_attr_t :: struct #align(8) {
+	_: [PTHREAD_ATTR_T_SIZE] c.char,
+}
+
+pthread_condattr_t :: struct #align(8) {
+	_: [PTHREAD_CONDATTR_T_SIZE] c.char,
+}
+
+pthread_mutexattr_t :: struct #align(8) {
+	_: [PTHREAD_MUTEXATTR_T_SIZE] c.char,
+}
+
+pthread_rwlockattr_t :: struct #align(8) {
+	_: [PTHREAD_RWLOCKATTR_T_SIZE] c.char,
+}
+
+pthread_barrierattr_t :: struct #align(8) {
+	_: [PTHREAD_BARRIERATTR_T_SIZE] c.char,
+}
+
+PTHREAD_MUTEX_NORMAL     :: 0
+PTHREAD_MUTEX_ERRORCHECK :: 1
+PTHREAD_MUTEX_RECURSIVE  :: 2
+
+PTHREAD_CREATE_JOINABLE :: 0
+PTHREAD_CREATE_DETACHED :: 1
+PTHREAD_INHERIT_SCHED   :: 0
+PTHREAD_EXPLICIT_SCHED  :: 1
+PTHREAD_PROCESS_PRIVATE :: 0
+PTHREAD_PROCESS_SHARED  :: 1
+
+SCHED_NONE  :: -1
+SCHED_OTHER :: 0
+SCHED_FIFO  :: 1
+SCHED_RR    :: 3
+
+sched_param :: struct {
+	sched_priority: c.int,
+}
+
+sem_t :: struct #align(16) {
+	_: [SEM_T_SIZE] c.char,
+}
+
+PTHREAD_CANCEL_ENABLE       :: 0
+PTHREAD_CANCEL_DISABLE      :: 1
+PTHREAD_CANCEL_DEFERRED     :: 0
+PTHREAD_CANCEL_ASYNCHRONOUS :: 1
+
+foreign import "system:pthread"
+
+@(default_calling_convention="c")
+foreign pthread {
+	sem_open :: proc(name: cstring, flags: c.int) -> ^sem_t ---
+
+	sem_init :: proc(sem: ^sem_t, pshared: c.int, initial_value: c.uint) -> c.int ---
+	sem_destroy :: proc(sem: ^sem_t) -> c.int ---
+	sem_post :: proc(sem: ^sem_t) -> c.int ---
+	sem_wait :: proc(sem: ^sem_t) -> c.int ---
+	sem_trywait :: proc(sem: ^sem_t) -> c.int ---
+
+	pthread_yield :: proc() ---
+
+	pthread_setcancelstate :: proc (state: c.int, old_state: ^c.int) -> c.int ---
+	pthread_setcanceltype  :: proc (type:  c.int, old_type:  ^c.int) -> c.int ---
+	pthread_cancel         :: proc (thread: pthread_t) -> c.int ---
+}

core/sys/unix/pthread_unix.odin

@@ -1,4 +1,4 @@
-//+build linux, darwin, freebsd, openbsd, haiku
+//+build linux, darwin, freebsd, openbsd, netbsd, haiku
 package unix
 
 foreign import "system:pthread"

core/sys/unix/syscalls_netbsd.odin

@@ -0,0 +1,3 @@
+package unix
+
+SYS___futex  : uintptr : 166

core/sys/unix/sysctl_netbsd.odin

@@ -0,0 +1,44 @@
+package unix
+
+import "core:c"
+foreign import libc "system:c"
+
+@(default_calling_convention="c")
+foreign libc {
+	@(link_name="sysctl") _unix_sysctl :: proc(name: [^]i32, namelen: u32, oldp: rawptr, oldlenp: ^c.size_t, newp: rawptr, newlen: c.size_t) -> i32 ---
+}
+
+sysctl :: proc(mib: []i32, val: ^$T) -> (ok: bool) {
+	mib := mib
+	result_size := c.size_t(size_of(T))
+	res := _unix_sysctl(raw_data(mib), u32(len(mib)), val, &result_size, nil, 0)
+	return res == 0
+}
+
+// See /usr/include/sys/sysctl.h for details
+CTL_KERN   :: 1
+	KERN_OSTYPE     :: 1
+	KERN_OSRELEASE  :: 2
+	KERN_OSREV      :: 3
+	KERN_VERSION    :: 4
+CTL_VM     :: 2
+CTL_FS     :: 3
+CTL_NET    :: 4
+CTL_DEBUG  :: 5
+CTL_HW     :: 6
+	HW_MACHINE      :: 1
+	HW_MODEL        :: 2
+	HW_NCPU         :: 3
+	HW_BYTEORDER    :: 4
+	HW_PHYSMEM	    :: 5
+	HW_USERMEM      :: 6
+	HW_PAGESIZE     :: 7
+	HW_DISKNAMES    :: 8
+	HW_IOSTATS      :: 9
+	HW_MACHINE_ARCH :: 10
+	HW_ALIGNBYTES   :: 11
+	HW_CNMAGIC      :: 12
+	HW_PHYSMEM64    :: 13
+	HW_USERMEM64    :: 14
+	HW_IOSTATNAMES  :: 15
+	HW_NCPUONLINE   :: 16

core/sys/unix/time_unix.odin

@@ -1,4 +1,4 @@
-//+build linux, darwin, freebsd, openbsd, haiku
+//+build linux, darwin, freebsd, openbsd, netbsd, haiku
 package unix
 
 when ODIN_OS == .Darwin {
@@ -9,11 +9,20 @@ when ODIN_OS == .Darwin {
 
 import "core:c"
 
-@(default_calling_convention="c")
-foreign libc {
-	clock_gettime :: proc(clock_id: u64, timespec: ^timespec) -> c.int ---
-	sleep         :: proc(seconds: c.uint) -> c.int ---
-	nanosleep     :: proc(requested, remaining: ^timespec) -> c.int ---
+when ODIN_OS == .NetBSD {
+	@(default_calling_convention="c")
+		foreign libc {
+			@(link_name="__clock_gettime50") clock_gettime :: proc(clock_id: u64, timespec: ^timespec) -> c.int ---
+			@(link_name="__nanosleep50")     nanosleep     :: proc(requested, remaining: ^timespec) -> c.int ---
+			@(link_name="sleep")             sleep         :: proc(seconds: c.uint) -> c.int ---
+	}
+} else {
+	@(default_calling_convention="c")
+	foreign libc {
+		clock_gettime :: proc(clock_id: u64, timespec: ^timespec) -> c.int ---
+		sleep         :: proc(seconds: c.uint) -> c.int ---
+		nanosleep     :: proc(requested, remaining: ^timespec) -> c.int ---
+	}
 }
 
 timespec :: struct {
@@ -65,7 +74,6 @@ seconds_since_boot :: proc "c" () -> f64 {
 	return f64(ts_boottime.tv_sec) + f64(ts_boottime.tv_nsec) / 1e9
 }
 
-
 inline_nanosleep :: proc "c" (nanoseconds: i64) -> (remaining: timespec, res: i32) {
 	s, ns := nanoseconds / 1e9, nanoseconds % 1e9
 	requested := timespec{tv_sec=s, tv_nsec=ns}

core/thread/thread_unix.odin

@@ -1,4 +1,4 @@
-// +build linux, darwin, freebsd, openbsd, haiku
+// +build linux, darwin, freebsd, openbsd, netbsd, haiku
 // +private
 package thread
 
@@ -20,7 +20,7 @@ Thread_Os_Specific :: struct #align(16) {
 // It then waits for `start` to be called.
 //
 _create :: proc(procedure: Thread_Proc, priority: Thread_Priority) -> ^Thread {
-	__linux_thread_entry_proc :: proc "c" (t: rawptr) -> rawptr {
+	__unix_thread_entry_proc :: proc "c" (t: rawptr) -> rawptr {
 		t := (^Thread)(t)
 
 		when ODIN_OS != .Darwin {
@@ -82,7 +82,7 @@ _create :: proc(procedure: Thread_Proc, priority: Thread_Priority) -> ^Thread {
 
 	// NOTE(tetra, 2019-11-01): These only fail if their argument is invalid.
 	assert(unix.pthread_attr_setdetachstate(&attrs, unix.PTHREAD_CREATE_JOINABLE) == 0)
-	when ODIN_OS != .Haiku {
+	when ODIN_OS != .Haiku && ODIN_OS != .NetBSD {
 		assert(unix.pthread_attr_setinheritsched(&attrs, unix.PTHREAD_EXPLICIT_SCHED) == 0)
 	}
 
@@ -95,7 +95,7 @@ _create :: proc(procedure: Thread_Proc, priority: Thread_Priority) -> ^Thread {
 	// Set thread priority.
 	policy: i32
 	res: i32
-	when ODIN_OS != .Haiku {
+	when ODIN_OS != .Haiku && ODIN_OS != .NetBSD {
 		res = unix.pthread_attr_getschedpolicy(&attrs, &policy)
 		assert(res == 0)
 	}
@@ -113,7 +113,7 @@ _create :: proc(procedure: Thread_Proc, priority: Thread_Priority) -> ^Thread {
 	assert(res == 0)
 
 	thread.procedure = procedure
-	if unix.pthread_create(&thread.unix_thread, &attrs, __linux_thread_entry_proc, thread) != 0 {
+	if unix.pthread_create(&thread.unix_thread, &attrs, __unix_thread_entry_proc, thread) != 0 {
 		free(thread, thread.creation_allocator)
 		return nil
 	}

core/time/time_unix.odin

@@ -1,5 +1,5 @@
 //+private
-//+build linux, darwin, freebsd, openbsd, haiku
+//+build linux, darwin, freebsd, openbsd, netbsd, haiku
 package time
 
 import "core:sys/unix"

src/bug_report.cpp

@@ -17,7 +17,7 @@
 	#include <sys/sysctl.h>
 #endif
 
-#if defined(GB_SYSTEM_OPENBSD)
+#if defined(GB_SYSTEM_OPENBSD) || defined(GB_SYSTEM_NETBSD)
 	#include <sys/sysctl.h>
 	#include <sys/utsname.h>
 #endif
@@ -263,6 +263,14 @@ gb_internal void report_ram_info() {
 		if (sysctl(mibs, 2, &ram_amount, &val_size, NULL, 0) != -1) {
 			gb_printf("%lld MiB\n", ram_amount / gb_megabytes(1));
 		}
+	#elif defined(GB_SYSTEM_NETBSD)
+		uint64_t ram_amount;
+		size_t   val_size = sizeof(ram_amount);
+
+		int mibs[] = { CTL_HW, HW_PHYSMEM64 };
+		if (sysctl(mibs, 2, &ram_amount, &val_size, NULL, 0) != -1) {
+			gb_printf("%lu MiB\n", ram_amount / gb_megabytes(1));
+		}
 	#elif defined(GB_SYSTEM_OPENBSD)
 		uint64_t ram_amount;
 		size_t   val_size = sizeof(ram_amount);
@@ -998,13 +1006,17 @@ gb_internal void report_os_info() {
 			gb_printf("macOS Unknown (kernel: %d.%d.%d)\n", major, minor, patch);
 			return;
 		}
-	#elif defined(GB_SYSTEM_OPENBSD)
+	#elif defined(GB_SYSTEM_OPENBSD) || defined(GB_SYSTEM_NETBSD)
 		struct utsname un;
 		
 		if (uname(&un) != -1) {
 			gb_printf("%s %s %s %s\n", un.sysname, un.release, un.version, un.machine);
 		} else {
-			gb_printf("OpenBSD: Unknown\n");    
+			#if defined(GB_SYSTEM_NETBSD)
+				gb_printf("NetBSD: Unknown\n");
+			#else
+				gb_printf("OpenBSD: Unknown\n");    
+			#endif
 		}
 	#elif defined(GB_SYSTEM_FREEBSD)
 		#define freebsd_version_buffer 129

src/build_settings.cpp

@@ -18,6 +18,7 @@ enum TargetOsKind : u16 {
 	TargetOs_essence,
 	TargetOs_freebsd,
 	TargetOs_openbsd,
+	TargetOs_netbsd,
 	TargetOs_haiku,
 	
 	TargetOs_wasi,
@@ -84,6 +85,7 @@ gb_global String target_os_names[TargetOs_COUNT] = {
 	str_lit("essence"),
 	str_lit("freebsd"),
 	str_lit("openbsd"),
+	str_lit("netbsd"),
 	str_lit("haiku"),
 	
 	str_lit("wasi"),
@@ -644,6 +646,7 @@ struct QueryDataSetSettings {
 enum BuildModeKind {
 	BuildMode_Executable,
 	BuildMode_DynamicLibrary,
+	BuildMode_StaticLibrary,
 	BuildMode_Object,
 	BuildMode_Assembly,
 	BuildMode_LLVM_IR,
@@ -1020,6 +1023,13 @@ gb_global TargetMetrics target_openbsd_amd64 = {
 	str_lit("x86_64-unknown-openbsd-elf"),
 };
 
+gb_global TargetMetrics target_netbsd_amd64 = {
+	TargetOs_netbsd,
+	TargetArch_amd64,
+	8, 8, AMD64_MAX_ALIGNMENT, 16,
+	str_lit("x86_64-unknown-netbsd-elf"),
+};
+
 gb_global TargetMetrics target_haiku_amd64 = {
 	TargetOs_haiku,
 	TargetArch_amd64,
@@ -1127,6 +1137,7 @@ gb_global NamedTargetMetrics named_targets[] = {
 	{ str_lit("freebsd_arm64"),       &target_freebsd_arm64  },
 
 	{ str_lit("openbsd_amd64"),       &target_openbsd_amd64  },
+	{ str_lit("netbsd_amd64"),        &target_netbsd_amd64   },
 	{ str_lit("haiku_amd64"),         &target_haiku_amd64    },
 
 	{ str_lit("freestanding_wasm32"), &target_freestanding_wasm32 },
@@ -1886,6 +1897,8 @@ gb_internal void init_build_context(TargetMetrics *cross_target, Subtarget subta
 			#endif
 		#elif defined(GB_SYSTEM_OPENBSD)
 			metrics = &target_openbsd_amd64;
+		#elif defined(GB_SYSTEM_NETBSD)
+			metrics = &target_netbsd_amd64;
 		#elif defined(GB_SYSTEM_HAIKU)
 			metrics = &target_haiku_amd64;
 		#elif defined(GB_CPU_ARM)
@@ -2272,7 +2285,12 @@ gb_internal bool init_build_paths(String init_filename) {
 		} else if (build_context.metrics.os == TargetOs_darwin) {
 			output_extension = STR_LIT("dylib");
 		}
-	} else if (build_context.build_mode == BuildMode_Object) {
+	} else if (build_context.build_mode == BuildMode_StaticLibrary) {
+		output_extension = STR_LIT("a");
+		if (build_context.metrics.os == TargetOs_windows) {
+			output_extension = STR_LIT("lib");
+		}
+	}else if (build_context.build_mode == BuildMode_Object) {
 		// By default use a .o object extension.
 		output_extension = STR_LIT("o");
 
@@ -2423,6 +2441,7 @@ gb_internal bool init_build_paths(String init_filename) {
 		case TargetOs_essence:
 		case TargetOs_freebsd:
 		case TargetOs_openbsd:
+		case TargetOs_netbsd:
 		case TargetOs_haiku:
 			gb_printf_err("-no-crt on unix systems requires either -default-to-nil-allocator or -default-to-panic-allocator to also be present because the default allocator requires crt\n");
 			return false;

src/check_expr.cpp

@@ -2440,32 +2440,6 @@ gb_internal bool check_is_not_addressable(CheckerContext *c, Operand *o) {
 	return o->mode != Addressing_Variable && o->mode != Addressing_SoaVariable;
 }
 
-gb_internal void check_old_for_or_switch_value_usage(Ast *expr) {
-	Entity *e = entity_of_node(expr);
-	if (e != nullptr && (e->flags & EntityFlag_OldForOrSwitchValue) != 0) {
-		GB_ASSERT(e->kind == Entity_Variable);
-
-		ERROR_BLOCK();
-
-		if ((e->flags & EntityFlag_ForValue) != 0) {
-			Type *parent_type = type_deref(e->Variable.for_loop_parent_type);
-
-			error(expr, "Assuming a for-in defined value is addressable as the iterable is passed by value has been disallowed.");
-
-			if (is_type_map(parent_type)) {
-				error_line("\tSuggestion: Prefer doing 'for key, &%.*s in ...'\n", LIT(e->token.string));
-			} else {
-				error_line("\tSuggestion: Prefer doing 'for &%.*s in ...'\n", LIT(e->token.string));
-			}
-		} else {
-			GB_ASSERT((e->flags & EntityFlag_SwitchValue) != 0);
-
-			error(expr, "Assuming a switch-in defined value is addressable as the iterable is passed by value has been disallowed.");
-			error_line("\tSuggestion: Prefer doing 'switch &%.*s in ...'\n", LIT(e->token.string));
-		}
-	}
-}
-
 gb_internal void check_unary_expr(CheckerContext *c, Operand *o, Token op, Ast *node) {
 	switch (op.kind) {
 	case Token_And: { // Pointer address
@@ -2493,7 +2467,10 @@ gb_internal void check_unary_expr(CheckerContext *c, Operand *o, Token op, Ast *
 						{
 							ERROR_BLOCK();
 							error(op, "Cannot take the pointer address of '%s'", str);
-							if (e != nullptr && (e->flags & EntityFlag_ForValue) != 0) {
+							if (e == nullptr) {
+								break;
+							}
+							if ((e->flags & EntityFlag_ForValue) != 0) {
 								Type *parent_type = type_deref(e->Variable.for_loop_parent_type);
 
 								if (parent_type != nullptr && is_type_string(parent_type)) {
@@ -2503,9 +2480,17 @@ gb_internal void check_unary_expr(CheckerContext *c, Operand *o, Token op, Ast *
 								} else {
 									error_line("\tSuggestion: Did you want to pass the iterable value to the for statement by pointer to get addressable semantics?\n");
 								}
+
+								if (is_type_map(parent_type)) {
+									error_line("\t            Prefer doing 'for key, &%.*s in ...'\n", LIT(e->token.string));
+								} else {
+									error_line("\t            Prefer doing 'for &%.*s in ...'\n", LIT(e->token.string));
+								}
 							}
-							if (e != nullptr && (e->flags & EntityFlag_SwitchValue) != 0) {
+							if ((e->flags & EntityFlag_SwitchValue) != 0) {
 								error_line("\tSuggestion: Did you want to pass the value to the switch statement by pointer to get addressable semantics?\n");
+
+								error_line("\t            Prefer doing 'switch &%.*s in ...'\n", LIT(e->token.string));
 							}
 						}
 						break;
@@ -2527,11 +2512,6 @@ gb_internal void check_unary_expr(CheckerContext *c, Operand *o, Token op, Ast *
 				o->type = alloc_type_pointer(o->type);
 			}
 		} else {
-			if (ast_node_expect(node, Ast_UnaryExpr)) {
-				ast_node(ue, UnaryExpr, node);
-				check_old_for_or_switch_value_usage(ue->expr);
-			}
-
 			o->type = alloc_type_pointer(o->type);
 		}
 

src/check_stmt.cpp

@@ -501,7 +501,6 @@ gb_internal Type *check_assignment_variable(CheckerContext *ctx, Operand *lhs, O
 		return nullptr;
 
 	case Addressing_Variable:
-		check_old_for_or_switch_value_usage(lhs->expr);
 		break;
 
 	case Addressing_MapIndex: {
@@ -523,9 +522,8 @@ gb_internal Type *check_assignment_variable(CheckerContext *ctx, Operand *lhs, O
 		break;
 	}
 
-	case Addressing_Context: {
+	case Addressing_Context:
 		break;
-	}
 
 	case Addressing_SoaVariable:
 		break;
@@ -1328,7 +1326,6 @@ gb_internal void check_type_switch_stmt(CheckerContext *ctx, Ast *node, u32 mod_
 		}
 	}
 
-	bool is_ptr = is_type_pointer(x.type);
 
 	// NOTE(bill): Check for multiple defaults
 	Ast *first_default = nullptr;
@@ -1447,15 +1444,6 @@ gb_internal void check_type_switch_stmt(CheckerContext *ctx, Ast *node, u32 mod_
 		}
 
 		bool is_reference = is_addressed;
-		bool old_style = false;
-
-		if (!is_reference &&
-		    is_ptr &&
-		    cc->list.count == 1 &&
-		    case_type != nullptr) {
-			is_reference = true;
-			old_style = true;
-		}
 
 		if (cc->list.count > 1 || saw_nil) {
 			case_type = nullptr;
@@ -1477,9 +1465,6 @@ gb_internal void check_type_switch_stmt(CheckerContext *ctx, Ast *node, u32 mod_
 			if (!is_reference) {
 				tag_var->flags |= EntityFlag_Value;
 			}
-			if (old_style) {
-				tag_var->flags |= EntityFlag_OldForOrSwitchValue;
-			}
 			add_entity(ctx, ctx->scope, lhs, tag_var);
 			add_entity_use(ctx, lhs, tag_var);
 			add_implicit_entity(ctx, stmt, tag_var);
@@ -1618,7 +1603,6 @@ gb_internal void check_range_stmt(CheckerContext *ctx, Ast *node, u32 mod_flags)
 	auto entities = array_make<Entity *>(temporary_allocator(), 0, 2);
 	bool is_map = false;
 	bool is_bit_set = false;
-	bool use_by_reference_for_value = false;
 	bool is_soa = false;
 	bool is_reverse = rs->reverse;
 
@@ -1679,7 +1663,6 @@ gb_internal void check_range_stmt(CheckerContext *ctx, Ast *node, u32 mod_flags)
 					}
 				}
 			}
-			bool is_ptr = is_type_pointer(operand.type);
 			Type *t = base_type(type_deref(operand.type));
 
 			switch (t->kind) {
@@ -1719,32 +1702,27 @@ gb_internal void check_range_stmt(CheckerContext *ctx, Ast *node, u32 mod_flags)
 				break;
 
 			case Type_EnumeratedArray:
-				if (is_ptr) use_by_reference_for_value = true;
 				array_add(&vals, t->EnumeratedArray.elem);
 				array_add(&vals, t->EnumeratedArray.index);
 				break;
 
 			case Type_Array:
-				if (is_ptr) use_by_reference_for_value = true;
-				if (!is_ptr) is_possibly_addressable = operand.mode == Addressing_Variable;
+				is_possibly_addressable = operand.mode == Addressing_Variable;
 				array_add(&vals, t->Array.elem);
 				array_add(&vals, t_int);
 				break;
 
 			case Type_DynamicArray:
-				if (is_ptr) use_by_reference_for_value = true;
 				array_add(&vals, t->DynamicArray.elem);
 				array_add(&vals, t_int);
 				break;
 
 			case Type_Slice:
-				if (is_ptr) use_by_reference_for_value = true;
 				array_add(&vals, t->Slice.elem);
 				array_add(&vals, t_int);
 				break;
 
 			case Type_Map:
-				if (is_ptr) use_by_reference_for_value = true;
 				is_map = true;
 				array_add(&vals, t->Map.key);
 				array_add(&vals, t->Map.value);
@@ -1817,7 +1795,6 @@ gb_internal void check_range_stmt(CheckerContext *ctx, Ast *node, u32 mod_flags)
 			case Type_Struct:
 				if (t->Struct.soa_kind != StructSoa_None) {
 					is_soa = true;
-					if (is_ptr) use_by_reference_for_value = true;
 					array_add(&vals, t->Struct.soa_elem);
 					array_add(&vals, t_int);
 				}
@@ -1894,9 +1871,6 @@ gb_internal void check_range_stmt(CheckerContext *ctx, Ast *node, u32 mod_flags)
 						char const *idx_name = is_map ? "key" : is_bit_set ? "element" : "index";
 						error(token, "The %s variable '%.*s' cannot be made addressable", idx_name, LIT(str));
 					}
-				} else if (i == addressable_index && use_by_reference_for_value) {
-					entity->flags |= EntityFlag_OldForOrSwitchValue;
-					entity->flags &= ~EntityFlag_Value;
 				}
 				if (is_soa) {
 					if (i == 0) {

src/checker.cpp

@@ -1013,6 +1013,7 @@ gb_internal void init_universal(void) {
 			{"FreeBSD",      TargetOs_freebsd},
 			{"Haiku",        TargetOs_haiku},
 			{"OpenBSD",      TargetOs_openbsd},
+			{"NetBSD",       TargetOs_netbsd},
 			{"WASI",         TargetOs_wasi},
 			{"JS",           TargetOs_js},
 			{"Freestanding", TargetOs_freestanding},
@@ -1043,6 +1044,7 @@ gb_internal void init_universal(void) {
 		GlobalEnumValue values[BuildMode_COUNT] = {
 			{"Executable", BuildMode_Executable},
 			{"Dynamic",    BuildMode_DynamicLibrary},
+			{"Static",     BuildMode_StaticLibrary},
 			{"Object",     BuildMode_Object},
 			{"Assembly",   BuildMode_Assembly},
 			{"LLVM_IR",    BuildMode_LLVM_IR},

src/entity.cpp

@@ -85,8 +85,6 @@ enum EntityFlag : u64 {
 	EntityFlag_Require = 1ull<<50,
 	EntityFlag_ByPtr   = 1ull<<51, // enforce parameter is passed by pointer
 
-	EntityFlag_OldForOrSwitchValue = 1ull<<52,
-
 	EntityFlag_Overridden    = 1ull<<63,
 };
 

src/gb/gb.h

@@ -83,6 +83,10 @@ extern "C" {
 		#ifndef GB_SYSTEM_OPENBSD
 		#define GB_SYSTEM_OPENBSD 1
 		#endif
+	#elif defined(__NetBSD__)
+		#ifndef GB_SYSTEM_NETBSD
+		#define GB_SYSTEM_NETBSD 1
+		#endif
 	#elif defined(__HAIKU__) || defined(__haiku__)
 		#ifndef GB_SYSTEM_HAIKU
 		#define GB_SYSTEM_HAIKU 1
@@ -208,7 +212,7 @@ extern "C" {
 	#endif
 	#include <stdlib.h> // NOTE(bill): malloc on linux
 	#include <sys/mman.h>
-	#if !defined(GB_SYSTEM_OSX) && !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__HAIKU__)
+	#if !defined(GB_SYSTEM_OSX) && !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__HAIKU__)
 		#include <sys/sendfile.h>
 	#endif
 	#include <sys/stat.h>
@@ -250,6 +254,11 @@ extern "C" {
 	#define lseek64 lseek
 #endif
 
+#if defined(GB_SYSTEM_NETBSD)
+	#include <stdio.h>
+	#define lseek64 lseek
+#endif
+
 #if defined(GB_SYSTEM_HAIKU)
 	#include <stdio.h>
 	#include <pthread.h>
@@ -817,6 +826,13 @@ typedef struct gbAffinity {
 	isize thread_count;
 	isize threads_per_core;
 } gbAffinity;
+#elif defined(GB_SYSTEM_NETBSD)
+typedef struct gbAffinity {
+	b32 is_accurate;
+	isize core_count;
+	isize thread_count;
+	isize threads_per_core;
+} gbAffinity;
 #elif defined(GB_SYSTEM_HAIKU)
 typedef struct gbAffinity {
 	b32   is_accurate;
@@ -3269,6 +3285,31 @@ isize gb_affinity_thread_count_for_core(gbAffinity *a, isize core) {
 	GB_ASSERT(0 <= core && core < a->core_count);
 	return a->threads_per_core;
 }
+
+#elif defined(GB_SYSTEM_NETBSD)
+#include <unistd.h>
+
+void gb_affinity_init(gbAffinity *a) {
+	a->core_count       = sysconf(_SC_NPROCESSORS_ONLN);
+	a->threads_per_core = 1;
+	a->is_accurate      = a->core_count > 0;
+	a->core_count       = a->is_accurate ? a->core_count : 1;
+	a->thread_count     = a->core_count;
+}
+
+void gb_affinity_destroy(gbAffinity *a) {
+	gb_unused(a);
+}
+
+b32 gb_affinity_set(gbAffinity *a, isize core, isize thread_index) {
+	return true;
+}
+
+isize gb_affinity_thread_count_for_core(gbAffinity *a, isize core) {
+	GB_ASSERT(0 <= core && core < a->core_count);
+	return a->threads_per_core;
+}
+
 #elif defined(GB_SYSTEM_HAIKU)
 #include <unistd.h>
 

src/linker.cpp

@@ -212,10 +212,12 @@ gb_internal i32 linker_stage(LinkerData *gen) {
 				link_settings = gb_string_append_fmt(link_settings, " /PDB:\"%.*s\"", LIT(pdb_path));
 			}
 
-			if (build_context.no_crt) {
-				link_settings = gb_string_append_fmt(link_settings, " /nodefaultlib");
-			} else {
-				link_settings = gb_string_append_fmt(link_settings, " /defaultlib:libcmt");
+			if (build_context.build_mode != BuildMode_StaticLibrary) {
+				if (build_context.no_crt) {
+					link_settings = gb_string_append_fmt(link_settings, " /nodefaultlib");
+				} else {
+					link_settings = gb_string_append_fmt(link_settings, " /defaultlib:libcmt");
+				}
 			}
 
 			if (build_context.ODIN_DEBUG) {
@@ -257,20 +259,31 @@ gb_internal i32 linker_stage(LinkerData *gen) {
 					}
 				}
 
+				String linker_name = str_lit("link.exe");
 				switch (build_context.build_mode) {
 				case BuildMode_Executable:
 					link_settings = gb_string_append_fmt(link_settings, " /NOIMPLIB /NOEXP");
 					break;
 				}
 
+				switch (build_context.build_mode) {
+				case BuildMode_StaticLibrary:
+					linker_name = str_lit("lib.exe");
+					break;
+				default:
+					link_settings = gb_string_append_fmt(link_settings, " /incremental:no /opt:ref");
+					break;
+				}
+
+
 				result = system_exec_command_line_app("msvc-link",
-					"\"%.*slink.exe\" %s %.*s -OUT:\"%.*s\" %s "
-					"/nologo /incremental:no /opt:ref /subsystem:%.*s "
+					"\"%.*s%.*s\" %s %.*s -OUT:\"%.*s\" %s "
+					"/nologo /subsystem:%.*s "
 					"%.*s "
 					"%.*s "
 					"%s "
 					"",
-					LIT(vs_exe_path), object_files, LIT(res_path), LIT(output_filename),
+					LIT(vs_exe_path), LIT(linker_name), object_files, LIT(res_path), LIT(output_filename),
 					link_settings,
 					LIT(build_context.ODIN_WINDOWS_SUBSYSTEM),
 					LIT(build_context.link_flags),
@@ -458,6 +471,10 @@ gb_internal i32 linker_stage(LinkerData *gen) {
 				link_settings = gb_string_append_fmt(link_settings, "-nostdlib ");
 			}
 
+			if (build_context.build_mode == BuildMode_StaticLibrary) {
+				compiler_error("TODO(bill): -build-mode:static on non-windows targets");
+			}
+
 			// NOTE(dweiler): We use clang as a frontend for the linker as there are
 			// other runtime and compiler support libraries that need to be linked in
 			// very specific orders such as libgcc_s, ld-linux-so, unwind, etc.

src/main.cpp

@@ -989,6 +989,8 @@ gb_internal bool parse_build_flags(Array<String> args) {
 								build_context.build_mode = BuildMode_DynamicLibrary;
 							} else if (str == "obj" || str == "object") {
 								build_context.build_mode = BuildMode_Object;
+							} else if (str == "static" || str == "lib") {
+								build_context.build_mode = BuildMode_StaticLibrary;
 							} else if (str == "exe") {
 								build_context.build_mode = BuildMode_Executable;
 							} else if (str == "asm" || str == "assembly" || str == "assembler") {
@@ -999,6 +1001,7 @@ gb_internal bool parse_build_flags(Array<String> args) {
 								gb_printf_err("Unknown build mode '%.*s'\n", LIT(str));
 								gb_printf_err("Valid build modes:\n");
 								gb_printf_err("\tdll, shared, dynamic\n");
+								gb_printf_err("\tlib, static\n");
 								gb_printf_err("\tobj, object\n");
 								gb_printf_err("\texe\n");
 								gb_printf_err("\tasm, assembly, assembler\n");
@@ -1637,6 +1640,7 @@ gb_internal void remove_temp_files(lbGenerator *gen) {
 
 	switch (build_context.build_mode) {
 	case BuildMode_Executable:
+	case BuildMode_StaticLibrary:
 	case BuildMode_DynamicLibrary:
 		break;
 
@@ -1655,6 +1659,7 @@ gb_internal void remove_temp_files(lbGenerator *gen) {
 	if (!build_context.keep_object_files) {
 		switch (build_context.build_mode) {
 		case BuildMode_Executable:
+		case BuildMode_StaticLibrary:
 		case BuildMode_DynamicLibrary:
 			for (String const &path : gen->output_object_paths) {
 				gb_file_remove(cast(char const *)path.text);
@@ -1833,6 +1838,9 @@ gb_internal void print_show_help(String const arg0, String const &command) {
 		print_usage_line(3, "-build-mode:exe         Builds as an executable.");
 		print_usage_line(3, "-build-mode:dll         Builds as a dynamically linked library.");
 		print_usage_line(3, "-build-mode:shared      Builds as a dynamically linked library.");
+		print_usage_line(3, "-build-mode:lib         Builds as a statically linked library.");
+		print_usage_line(3, "-build-mode:static      Builds as a statically linked library.");
+		print_usage_line(3, "-build-mode:lib         Builds as an static library.");
 		print_usage_line(3, "-build-mode:obj         Builds as an object file.");
 		print_usage_line(3, "-build-mode:object      Builds as an object file.");
 		print_usage_line(3, "-build-mode:assembly    Builds as an assembly file.");
@@ -2866,6 +2874,7 @@ int main(int arg_count, char const **arg_ptr) {
 
 		switch (build_context.build_mode) {
 		case BuildMode_Executable:
+		case BuildMode_StaticLibrary:
 		case BuildMode_DynamicLibrary:
 			i32 result = linker_stage(&linker_data);
 			if (result) {
@@ -2887,6 +2896,7 @@ int main(int arg_count, char const **arg_ptr) {
 		if (lb_generate_code(gen)) {
 			switch (build_context.build_mode) {
 			case BuildMode_Executable:
+			case BuildMode_StaticLibrary:
 			case BuildMode_DynamicLibrary:
 				i32 result = linker_stage(gen);
 				if (result) {

src/path.cpp

@@ -341,7 +341,7 @@ gb_internal ReadDirectoryError read_directory(String path, Array<FileInfo> *fi)
 
 	return ReadDirectory_None;
 }
-#elif defined(GB_SYSTEM_LINUX) || defined(GB_SYSTEM_OSX) || defined(GB_SYSTEM_FREEBSD) || defined(GB_SYSTEM_OPENBSD) || defined(GB_SYSTEM_HAIKU)
+#elif defined(GB_SYSTEM_LINUX) || defined(GB_SYSTEM_OSX) || defined(GB_SYSTEM_FREEBSD) || defined(GB_SYSTEM_OPENBSD) || defined(GB_SYSTEM_NETBSD) || defined(GB_SYSTEM_HAIKU)
 
 #include <dirent.h>
 

src/threading.cpp

@@ -628,15 +628,23 @@ gb_internal void thread_set_name(Thread *t, char const *name) {
 	pthread_setname_np(name);
 #elif defined(GB_SYSTEM_FREEBSD) || defined(GB_SYSTEM_OPENBSD)
 	pthread_set_name_np(t->posix_handle, name);
+#elif defined(GB_SYSTEM_NETBSD)
+	pthread_setname_np(t->posix_handle, "%s", (void*)name);
 #else
 	// TODO(bill): Test if this works
 	pthread_setname_np(t->posix_handle, name);
 #endif
 }
 
-#if defined(GB_SYSTEM_LINUX)
-#include <linux/futex.h>
+#if defined(GB_SYSTEM_LINUX) || defined(GB_SYSTEM_NETBSD)
+
 #include <sys/syscall.h>
+#ifdef GB_SYSTEM_LINUX
+	#include <linux/futex.h>
+#else
+	#include <sys/futex.h>
+	#define SYS_futex SYS___futex
+#endif
 
 gb_internal void futex_signal(Futex *addr) {
 	int ret = syscall(SYS_futex, addr, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1, NULL, NULL, 0);

tests/core/Makefile

@@ -3,30 +3,32 @@ PYTHON=$(shell which python3)
 COMMON=-vet -strict-style
 COLLECTION=-collection:tests=..
 
-all: c_libc_test \
-	 compress_test \
-	 container_test \
-	 crypto_test \
-	 download_test_assets \
-	 encoding_test \
-	 filepath_test \
-	 fmt_test \
-	 hash_test \
-	 i18n_test \
-	 image_test \
-	 linalg_glsl_math_test \
-	 match_test \
-	 math_test \
-	 net_test \
-	 noise_test \
-	 os_exit_test \
-	 reflect_test \
-	 slice_test \
-	 strings_test \
-	 thread_test \
-	 runtime_test \
-	 time_test \
-	 fmt_test
+all: all_bsd \
+     net_test
+
+all_bsd: c_libc_test \
+         compress_test \
+         container_test \
+         crypto_test \
+         download_test_assets \
+         encoding_test \
+         filepath_test \
+         fmt_test \
+         hash_test \
+         i18n_test \
+         image_test \
+         linalg_glsl_math_test \
+         match_test \
+         math_test \
+         noise_test \
+         os_exit_test \
+         reflect_test \
+         slice_test \
+         strings_test \
+         thread_test \
+         runtime_test \
+         time_test \
+         fmt_test
 
 download_test_assets:
 	$(PYTHON) download_assets.py
@@ -101,4 +103,4 @@ runtime_test:
 	$(ODIN) run runtime $(COMMON) -out:test_core_runtime
 
 time_test:
-	$(ODIN) run time $(COMMON) -out:test_core_time
+	$(ODIN) run time $(COMMON) -out:test_core_time

tests/internal/Makefile

@@ -1,6 +1,8 @@
 ODIN=../../odin
 
-all: rtti_test map_test pow_test 128_test asan_test string_compare_test
+all: all_bsd asan_test
+
+all_bsd: rtti_test map_test pow_test 128_test string_compare_test
 
 rtti_test:
 	$(ODIN) run test_rtti.odin -file -vet -strict-style -o:minimal
@@ -18,4 +20,4 @@ asan_test:
 	$(ODIN) run test_asan.odin -file -sanitize:address -debug
 
 string_compare_test:
-	$(ODIN) run test_string_compare.odin -file -vet -strict-style -o:minimal
+	$(ODIN) run test_string_compare.odin -file -vet -strict-style -o:minimal

vendor/ENet/unix.odin

@@ -1,4 +1,4 @@
-//+build linux, darwin, freebsd, openbsd
+//+build linux, darwin, freebsd, openbsd, netbsd
 package ENet
 
 // When we implement the appropriate bindings for Unix, the section separated

vendor/directx/dxc/dxcdef_unix.odin

@@ -1,4 +1,4 @@
-//+build linux, darwin, freebsd, openbsd
+//+build linux, darwin, freebsd, openbsd, netbsd
 package directx_dxc
 import "core:c"