)

func FuzzNonCrash(f *testing.F) {
	f.Fuzz(func(*testing.T, bool) {
		pid := syscall.Getpid()
		if err := syscall.Kill(pid, syscall.SIGTERM); err != nil {
			panic(err)
		}
		// signal may not be received immediately. Wait for it.
		select{}
	})
}

func FuzzKill(f *testing.F) {
	f.Fuzz(func(*testing.T, bool) {
		pid := syscall.Getpid()
		if err := syscall.Kill(pid, syscall.SIGKILL); err != nil {
			panic(err)
		}

#cgo CFLAGS: -g -fsanitize=thread
#cgo LDFLAGS: -g -fsanitize=thread
*/
import "C"

func main() {
	c := make(chan os.Signal, 1)
	signal.Notify(c, syscall.SIGUSR1)
	defer signal.Stop(c)
	syscall.Kill(syscall.Getpid(), syscall.SIGUSR1)
	<-c

)

func FuzzInterrupt(f *testing.F) {
	pids := os.Getenv("GO_TEST_INTERRUPT_PIDS")
	if pids == "" {
		// This is the main test process.
		// Set the environment variable for fuzz workers.
		pid := os.Getpid()
		ppid := os.Getppid()
		os.Setenv("GO_TEST_INTERRUPT_PIDS", fmt.Sprintf("%d,%d", ppid, pid))
	}

	sentInterrupt := false
	f.Fuzz(func(t *testing.T, orig string) {
		if !sentInterrupt {

func FuzzFast(f *testing.F) {
	f.Fuzz(func (*testing.T, []byte) {})
}
-- fuzz_count_test.go --
package fuzz

import (
	"fmt"
	"os"
	"testing"
)

func FuzzTestCount(f *testing.F) {
	pid := os.Getpid()
	n := 0
	f.Fuzz(func(t *testing.T, _ []byte) {
		name := fmt.Sprintf("count/%v.%d", pid, n)
		if err := os.WriteFile(name, nil, 0666); err != nil {
			t.Fatal(err)
		}
		n++
	})
}

	signal.Notify(ch, syscall.SIGUSR1)

	if err := exec.Command("true").Run(); err != nil {
		fmt.Fprintf(os.Stderr, "Unexpected error from `true`: %v", err)
		os.Exit(1)
	}

	syscall.Kill(syscall.Getpid(), syscall.SIGUSR1)
	<-ch

package main

import "os"

// Too small to trigger deadcode (currently)
var small = map[string]int{"foo": 1}

// Has side effects, which prevent deadcode
var effect = map[string]int{"foo": os.Getpid()}

// Large and side-effect free
var large = map[string]int{
	"11": 1, "12": 2, "13": 3, "14": 4, "15": 5, "16": 6, "17": 7, "18": 8, "19": 9, "110": 10,
	"21": 1, "22": 2, "23": 3, "24": 4, "25": 5, "26": 6, "27": 7, "28": 8, "29": 9, "210": 10,

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

package main

import (
	_ "unsafe"
)

//go:cgo_import_dynamic libc_getpid getpid "libc.so"
//go:cgo_import_dynamic libc_kill kill "libc.so"
//go:cgo_import_dynamic libc_close close "libc.so"
//go:cgo_import_dynamic libc_open open "libc.so"

//go:cgo_import_dynamic _ _ "libc.so"

func trampoline()

		exit(EXIT_FAILURE);
	}
}
*/
import "C"

func main() {
	ch := make(chan os.Signal, 1)
	signal.Notify(ch, syscall.SIGUSR2)

	C.register_handler(C.int(syscall.SIGUSR1))
	syscall.Kill(syscall.Getpid(), syscall.SIGUSR1)

	<-ch

func gatherPropsDumpForFile(t *testing.T, testcase string, td string) (string, error) {
	t.Helper()
	gopath := "testdata/props/" + testcase + ".go"
	outpath := filepath.Join(td, testcase+".a")
	salt := fmt.Sprintf(".p%dt%d", os.Getpid(), time.Now().UnixNano())
	dumpfile := filepath.Join(td, testcase+salt+".dump.txt")
	run := []string{testenv.GoToolPath(t), "build",
		"-gcflags=-d=dumpinlfuncprops=" + dumpfile, "-o", outpath, gopath}

		{call: "Setuid(0)", fn: func() error { return syscall.Setuid(0) }, filter: "Uid:", expect: "\t0\t0\t0\t0"},

		{call: "Setgid(1)", fn: func() error { return syscall.Setgid(1) }, filter: "Gid:", expect: "\t1\t1\t1\t1"},
		{call: "Setgid(0)", fn: func() error { return syscall.Setgid(0) }, filter: "Gid:", expect: "\t0\t0\t0\t0"},