// js only invokes the exception handler for memory faults.
	gp.sig = _SIGSEGV
	panicmem()
}

// func exitThread(wait *uint32)
// FIXME: wasm doesn't have atomic yet
func exitThread(wait *atomic.Uint32)

type mOS struct{}

func osyield()

//go:nosplit
func osyield_no_g() {
	osyield()
}

type sigset struct{}

// Called to initialize a new m (including the bootstrap m).

import (
	"internal/abi"
	"internal/goarch"
	"unsafe"
)

const (
	_NSIG        = 33
	_SI_USER     = 0
	_SS_DISABLE  = 4
	_SIG_BLOCK   = 1
	_SIG_UNBLOCK = 2
	_SIG_SETMASK = 3
)

type mOS struct{}

//go:noescape
func lwp_create(param *lwpparams) int32

//go:noescape
func sigaltstack(new, old *stackt)

//go:noescape
func sigaction(sig uint32, new, old *sigactiont)

//go:noescape

// A variable with this type is always created in assembler
type funcDescriptor struct {
	fn         uintptr
	toc        uintptr
	envPointer uintptr // unused in Golang
}

type mOS struct {
	waitsema uintptr // semaphore for parking on locks
	perrno   uintptr // pointer to tls errno
}

//go:nosplit
func semacreate(mp *m) {
	if mp.waitsema != 0 {
		return
	}

	var sem *semt

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime

import (
	"internal/abi"
	"internal/runtime/atomic"
	"unsafe"
)

type mOS struct {
	waitsemacount uint32
}

const (
	_ESRCH       = 3
	_EWOULDBLOCK = _EAGAIN
	_ENOTSUP     = 91

	// From OpenBSD's sys/time.h
	_CLOCK_REALTIME  = 0
	_CLOCK_VIRTUAL   = 1
	_CLOCK_PROF      = 2

// license that can be found in the LICENSE file.

package runtime

import "unsafe"

type mts struct {
	tv_sec  int64
	tv_nsec int64
}

type mscratch struct {
	v [6]uintptr
}

type mOS struct {
	waitsema uintptr // semaphore for parking on locks
	perrno   *int32  // pointer to tls errno
	// these are here because they are too large to be on the stack
	// of low-level NOSPLIT functions.

	_SIG_SETMASK = 3
	_NSIG        = 33
	_SI_USER     = 0

	// From NetBSD's <sys/ucontext.h>
	_UC_SIGMASK = 0x01
	_UC_CPU     = 0x04

	// From <sys/lwp.h>
	_LWP_DETACHED = 0x00000040
)

type mOS struct {
	waitsemacount uint32
}

//go:noescape
func setitimer(mode int32, new, old *itimerval)

//go:noescape
func sigaction(sig uint32, new, old *sigactiont)

//go:noescape

// license that can be found in the LICENSE file.

package runtime

import (
	"internal/abi"
	"internal/runtime/atomic"
	"internal/stringslite"
	"unsafe"
)

type mOS struct {
	waitsemacount uint32
	notesig       *int8
	errstr        *byte
	ignoreHangup  bool
}

func closefd(fd int32) int32

//go:noescape
func open(name *byte, mode, perm int32) int32

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime

import (
	"internal/abi"
	"unsafe"
)

type mOS struct {
	initialized bool
	mutex       pthreadmutex
	cond        pthreadcond
	count       int
}

func unimplemented(name string) {
	println(name, "not implemented")

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime

import (
	"internal/abi"
	"internal/goarch"
	"unsafe"
)

type mOS struct{}

//go:noescape
func thr_new(param *thrparam, size int32) int32

//go:noescape
func sigaltstack(new, old *stackt)

//go:noescape
func sigprocmask(how int32, new, old *sigset)

//go:noescape

)

// sigPerThreadSyscall is the same signal (SIGSETXID) used by glibc for
// per-thread syscalls on Linux. We use it for the same purpose in non-cgo
// binaries.
const sigPerThreadSyscall = _SIGRTMIN + 1

type mOS struct {
	// profileTimer holds the ID of the POSIX interval timer for profiling CPU
	// usage on this thread.
	//
	// It is valid when the profileTimerValid field is true. A thread