//go:nosplit
func racerelease(addr unsafe.Pointer) {
	racereleaseg(getg(), addr)
}

//go:nosplit
func racereleaseg(gp *g, addr unsafe.Pointer) {
	if getg().raceignore != 0 || !isvalidaddr(addr) {
		return
	}
	racecall(&__tsan_release, gp.racectx, uintptr(addr), 0, 0)
}

//go:nosplit
func racereleaseacquire(addr unsafe.Pointer) {
	racereleaseacquireg(getg(), addr)
}

//go:nosplit

		// observe this.
		throw("self deadlock")
	}
	gp := getg()
	if gp.m.locks < 0 {
		throw("lock count")
	}
	gp.m.locks++
	l.key = mutex_locked
}

func unlock(l *mutex) {
	unlockWithRank(l)
}

func unlock2(l *mutex) {
	if l.key == mutex_unlocked {
		throw("unlock of unlocked lock")
	}
	gp := getg()
	gp.m.locks--
	if gp.m.locks < 0 {
		throw("lock count")
	}

		// observe this.
		throw("self deadlock")
	}
	gp := getg()
	if gp.m.locks < 0 {
		throw("lock count")
	}
	gp.m.locks++
	l.key = mutex_locked
}

func unlock(l *mutex) {
	unlockWithRank(l)
}

func unlock2(l *mutex) {
	if l.key == mutex_unlocked {
		throw("unlock of unlocked lock")
	}
	gp := getg()
	gp.m.locks--
	if gp.m.locks < 0 {
		throw("lock count")
	}

//go:nosplit
func exit(code int32) {
	gp := getg()

	// Check the validity of g because without a g during
	// newosproc0.
	if gp != nil {
		syscall1(&libc_exit, uintptr(code))
		return
	}
	exit1(code)
}

func write2(fd, p uintptr, n int32) int32

//go:nosplit
func write1(fd uintptr, p unsafe.Pointer, n int32) int32 {
	gp := getg()

	// Check the validity of g because without a g during

			throw("lockRank release without matching lockRank acquire")
		}
	})

	releasem(getg().m)
}

// nosplit because it may be called from nosplit contexts.
//
//go:nosplit
func lockWithRankMayAcquire(l *mutex, rank lockRank) {
	gp := getg()
	if gp.m.locksHeldLen == 0 {
		// No possibility of lock ordering problem if no other locks held
		return
	}

	if ns < 0 {
		result = stdcall2(_WaitForSingleObject, getg().m.waitsema, uintptr(_INFINITE))
	} else {
		start := nanotime()
		elapsed := int64(0)
		for {
			ms := int64(timediv(ns-elapsed, 1000000, nil))
			if ms == 0 {
				ms = 1
			}
			result = stdcall4(_WaitForMultipleObjects, 2,
				uintptr(unsafe.Pointer(&[2]uintptr{getg().m.waitsema, getg().m.resumesema})),
				0, uintptr(ms))

	// a signal handler. Add the go:nowritebarrierrec annotation and restructure
	// this to avoid write barriers.

	switch h.gp.atomicstatus.Load() {
	case _Grunning:
		if getg().m != h.mp {
			println("trap on wrong M", getg().m, h.mp)
			return false
		}
		// Save the signal context
		h.saveSigContext(ctxt)
		// Set PC to debugCallV2.
		ctxt.setsigpc(uint64(abi.FuncPCABIInternal(debugCallV2)))

// This will return a pointer to errno.
func miniterrno() {
	mp := getg().m
	r, _ := syscall0(&libc__Errno)
	mp.perrno = r

}

func minit() {
	miniterrno()
	minitSignals()
	getg().m.procid = uint64(pthread_self())
}

func unminit() {
	unminitSignals()
	getg().m.procid = 0
}

// Called from exitm, but not from drop, to undo the effect of thread-owned

	if getg().m.dying > 0 {
		// We're going down. Not much point in write barriers
		// and this way we can allow write barriers in the
		// panic path.
		getg().m.p.ptr().wbBuf.discard()
		return
	}

	// Switch to the system stack so we don't have to worry about
	// safe points.
	systemstack(func() {
		wbBufFlush1(getg().m.p.ptr())
	})
}

	callbackLastVCH
)

// sigFetchGSafe is like getg() but without panicking
// when TLS is not set.
// Only implemented on windows/386, which is the only
// arch that loads TLS when calling getg(). Others
// use a dedicated register.
func sigFetchGSafe() *g

func sigFetchG() *g {
	if GOARCH == "386" {
		return sigFetchGSafe()
	}
	return getg()
}