//go:nosplit
func mdestroy(mp *m) {
	if mp.highResTimer != 0 {
		stdcall1(_CloseHandle, mp.highResTimer)
		mp.highResTimer = 0
	}
	if mp.waitIocpTimer != 0 {
		stdcall1(_CloseHandle, mp.waitIocpTimer)
		mp.waitIocpTimer = 0
	}
	if mp.waitIocpHandle != 0 {
		stdcall1(_CloseHandle, mp.waitIocpHandle)
		mp.waitIocpHandle = 0
	}
	if mp.waitsema != 0 {
		stdcall1(_CloseHandle, mp.waitsema)
		mp.waitsema = 0
	}

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

package runtime

import "unsafe"

//go:nosplit
func cputicks() int64 {
	var counter int64
	stdcall1(_QueryPerformanceCounter, uintptr(unsafe.Pointer(&counter)))
	return counter
}

func checkgoarm() {
	if goarm < 7 {
		print("Need atomic synchronization instructions, coprocessor ",

	var werflags uintptr
	stdcall2(_WerGetFlags, currentProcess, uintptr(unsafe.Pointer(&werflags)))
	stdcall1(_WerSetFlags, werflags|_WER_FAULT_REPORTING_NO_UI)
}

// enableWER re-enables Windows error reporting without fault reporting UI.
func enableWER() {
	// re-enable Windows Error Reporting
	errormode := stdcall0(_GetErrorMode)
	if errormode&_SEM_NOGPFAULTERRORBOX != 0 {
		stdcall1(_SetErrorMode, errormode^_SEM_NOGPFAULTERRORBOX)

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

package runtime

import "unsafe"

//go:nosplit
func cputicks() int64 {
	var counter int64
	stdcall1(_QueryPerformanceCounter, uintptr(unsafe.Pointer(&counter)))
	return counter

import "unsafe"

const MaxArgs = maxArgs

var (
	OsYield                 = osyield
	TimeBeginPeriodRetValue = &timeBeginPeriodRetValue
)

func NumberOfProcessors() int32 {
	var info systeminfo
	stdcall1(_GetSystemInfo, uintptr(unsafe.Pointer(&info)))
	return int32(info.dwnumberofprocessors)
}

type ContextStub struct {
	context
}

func (c ContextStub) GetPC() uintptr {
	return c.ip()
}

	errno := stdcall2(_NtCancelWaitCompletionPacket, mp.waitIocpHandle, 1)
	switch errno {
	case STATUS_CANCELLED:
		// STATUS_CANCELLED is returned when the associated timer has already expired,
		// in which automatically cancels the wait completion packet.
		fallthrough
	case STATUS_SUCCESS:
		dt := -delay / 100 // relative sleep (negative), 100ns units

// which prevents us from allocating more stack.
//
//go:nosplit
func sysAllocOS(n uintptr) unsafe.Pointer {
	return unsafe.Pointer(stdcall4(_VirtualAlloc, 0, n, _MEM_COMMIT|_MEM_RESERVE, _PAGE_READWRITE))
}

func sysUnusedOS(v unsafe.Pointer, n uintptr) {
	r := stdcall3(_VirtualFree, uintptr(v), n, _MEM_DECOMMIT)
	if r != 0 {
		return
	}

	// Decommit failed. Usual reason is that we've merged memory from two different

}

//go:linkname syscall_chdir syscall.chdir
//go:nosplit
func syscall_chdir(path uintptr) (err uintptr) {
	_, err = syscall1(&libc_chdir, path)
	return
}

//go:linkname syscall_chroot1 syscall.chroot1
//go:nosplit
func syscall_chroot1(path uintptr) (err uintptr) {
	_, err = syscall1(&libc_chroot, path)
	return
}

// like close, but must not split stack, for fork.
//

	return int32(r)
}

//go:nosplit
func closefd(fd int32) int32 {
	r, _ := syscall1(&libc_close, uintptr(fd))
	return int32(r)
}

//go:nosplit
func pipe() (r, w int32, errno int32) {
	var p [2]int32
	_, err := syscall1(&libc_pipe, uintptr(noescape(unsafe.Pointer(&p[0]))))
	return p[0], p[1], int32(err)
}

// mmap calls the mmap system call.

}

type callbackArgs struct {
	index uintptr
	// args points to the argument block.
	//
	// For cdecl and stdcall, all arguments are on the stack.
	//
	// For fastcall, the trampoline spills register arguments to
	// the reserved spill slots below the stack arguments,
	// resulting in a layout equivalent to stdcall.
	//
	// For arm, the trampoline stores the register arguments just