for _, window := range windows {
			if window > len(b[i:]) {
				window = len(b[i:])
			}
			testCountWindow(i, window)
			for j := 0; j < window; j++ {
				b[i+j] = byte(0)
			}
		}
	}
	for i := 4096 - (maxWnd + 1); i < len(b); i++ {
		for _, window := range windows {
			if window > len(b[i:]) {
				window = len(b[i:])
			}
			testCountWindow(i, window)
			for j := 0; j < window; j++ {
				b[i+j] = byte(0)

		offset = 0
	}
	return time.FixedZone("", int(offset/time.Second))
}

// msDosTimeToTime converts an MS-DOS date and time into a time.Time.
// The resolution is 2s.
// See: https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-dosdatetimetofiletime
func msDosTimeToTime(dosDate, dosTime uint16) time.Time {
	return time.Date(
		// date bits 0-4: day of month; 5-8: month; 9-15: years since 1980
		int(dosDate>>9+1980),

	if len(f) < 3 && f[2] == "" {
		t.Fatal("addr2line output must have 2 lines")
	}
	funcname = f[0]
	pathAndLineNo := f[1]
	f = strings.Split(pathAndLineNo, ":")
	if runtime.GOOS == "windows" && len(f) == 3 {
		// Reattach drive letter.
		f = []string{f[0] + ":" + f[1], f[2]}
	}
	if len(f) != 2 {
		t.Fatalf("no line number found in %q", pathAndLineNo)
	}
	return funcname, f[0], f[1]
}

				}
				attrBuf := fieldBuf.sub(attrSize)
				if attrTag != 1 || attrSize != 24 {
					continue // Ignore irrelevant attributes
				}

				const ticksPerSecond = 1e7    // Windows timestamp resolution
				ts := int64(attrBuf.uint64()) // ModTime since Windows epoch
				secs := ts / ticksPerSecond
				nsecs := (1e9 / ticksPerSecond) * (ts % ticksPerSecond)
				epoch := time.Date(1601, time.January, 1, 0, 0, 0, 0, time.UTC)

// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package cgotest

/*
#include <windows.h>
USHORT backtrace(ULONG FramesToCapture, PVOID *BackTrace) {
#ifdef _AMD64_
	CONTEXT context;
	RtlCaptureContext(&context);
	ULONG64 ControlPc;
	ControlPc = context.Rip;
	int i;
	for (i = 0; i < FramesToCapture; i++) {

// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build cgo && !windows

// Issue 29563: internal linker fails on duplicate weak symbols.
// No runtime test; just make sure it compiles.

package cgotest

// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build cgo && !windows

// Issue 18146: pthread_create failure during syscall.Exec.

package cgotest

import (
	"bytes"
	"crypto/md5"
	"os"
	"os/exec"
	"runtime"
	"syscall"
	"testing"
	"time"
)

func test18146(t *testing.T) {
	if testing.Short() {

			{
				Name:     "filename",
				Content:  []byte("This is a test textfile.\n"),
				Modified: time.Date(2011, 2, 2, 13, 6, 20, 0, time.UTC),
				Mode:     0666,
			},
		},
	},
	{
		// created in windows XP file manager.
		Name: "winxp.zip",
		File: []ZipTestFile{
			{
				Name:     "hello",
				Content:  []byte("world \r\n"),
				Modified: time.Date(2011, 12, 8, 10, 4, 24, 0, time.UTC),
				Mode:     0666,

// badVoidPointerTypedef is like badPointerTypeDef, but for "void *" typedefs that should be _cgopackage.Incomplete.
func (c *typeConv) badVoidPointerTypedef(dt *dwarf.TypedefType) bool {
	// Match the Windows HANDLE type (#42018).
	if goos != "windows" || dt.Name != "HANDLE" {
		return false
	}
	// Check that the typedef is "typedef void *<name>".
	if ptr, ok := dt.Type.(*dwarf.PtrType); ok {
		if _, ok := ptr.Type.(*dwarf.VoidType); ok {

// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build cgo && !windows

package cgotest

import "testing"

func TestSigaltstack(t *testing.T) { testSigaltstack(t) }
func TestSigprocmask(t *testing.T) { testSigprocmask(t) }