}
}

func sysUsedOS(v unsafe.Pointer, n uintptr) {
	p := stdcall4(_VirtualAlloc, uintptr(v), n, _MEM_COMMIT, _PAGE_READWRITE)
	if p == uintptr(v) {
		return
	}

	// Commit failed. See SysUnused.
	// Hold on to n here so we can give back a better error message
	// for certain cases.
	k := n
	for k > 0 {
		small := k
		for small >= 4096 && stdcall4(_VirtualAlloc, uintptr(v), small, _MEM_COMMIT, _PAGE_READWRITE) == 0 {

//go:cgo_unsafe_args
func stdcall4(fn stdFunction, a0, a1, a2, a3 uintptr) uintptr {
	mp := getg().m
	mp.libcall.n = 4
	mp.libcall.args = uintptr(noescape(unsafe.Pointer(&a0)))
	return stdcall(fn)
}

//go:nosplit
//go:cgo_unsafe_args
func stdcall5(fn stdFunction, a0, a1, a2, a3, a4 uintptr) uintptr {
	mp := getg().m
	mp.libcall.n = 5
	mp.libcall.args = uintptr(noescape(unsafe.Pointer(&a0)))
	return stdcall(fn)
}

	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

	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()
}

// 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 ",

}

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

	CMPL	CX, $0
	JE	docall

	// Copy args to the stack.
	MOVL	CX, AX
	SALL	$2, AX
	SUBL	AX, SP			// room for args
	MOVL	SP, DI
	MOVL	libcall_args(BX), SI
	CLD
	REP; MOVSL

docall:
	// Call stdcall or cdecl function.
	// DI SI BP BX are preserved, SP is not
	CALL	libcall_fn(BX)
	MOVL	BP, SP

	// Return result.
	MOVL	fn+0(FP), BX
	MOVL	AX, libcall_r1(BX)
	MOVL	DX, libcall_r2(BX)

	// GetLastError().

			dll := syscall.MustLoadDLL(dllPath)
			defer dll.Release()
			for _, cbf := range getCallbackTestFuncs() {
				t.Run(cbf.cName(false), func(t *testing.T) {
					stdcall := syscall.NewCallback(cbf.goFunc)
					cbf.testOne(t, dll, false, stdcall)
				})
				t.Run(cbf.cName(true), func(t *testing.T) {
					cdecl := syscall.NewCallbackCDecl(cbf.goFunc)
					cbf.testOne(t, dll, true, cdecl)
				})
			}
		})
	}