// FirstQuota is the quota ID we start with.
// XXXXXXX Need a better way of doing this...
var FirstQuota QuotaID = 1048577

// MountsFile is the location of the system mount data
var MountsFile = "/proc/self/mounts"

// MountParseRegexp parses out /proc/sys/self/mounts
var MountParseRegexp = regexp.MustCompilePOSIX("^([^ ]*)[ \t]*([^ ]*)[ \t]*([^ ]*)") // Ignore options etc.

// LinuxVolumeQuotaProvider returns an appropriate quota applier

// license that can be found in the LICENSE file.

// This test _may_ fail on arm, but requires the host to
// trap unaligned loads. This is generally done with
//
// echo "4" > /proc/cpu/alignment

package main

type T struct {
	U uint16
	V T2
}

type T2 struct {
	pad    [4096]byte
	A, B byte
}

var s, t = new(T), new(T)

func main() {

)

func gettid() int {
	return syscall.Gettid()
}

func tidExists(tid int) (exists, supported bool, err error) {
	// Open the magic proc status file for reading with the syscall package.
	// We want to identify certain valid errors very precisely.
	statusFile := fmt.Sprintf("/proc/self/task/%d/status", tid)
	fd, err := syscall.Open(statusFile, syscall.O_RDONLY, 0)
	if errno, ok := err.(syscall.Errno); ok {

	}
}

// block indicates that the goroutine has stopped executing on a proc -- specifically,
// it blocked for some reason.
func (gs *gState[R]) block(ts trace.Time, stack trace.Stack, reason string, ctx *traceContext) {
	gs.startBlockReason = reason
	gs.stop(ts, stack, ctx)
}

// stop indicates that the goroutine has stopped executing on a proc.
func (gs *gState[R]) stop(ts trace.Time, stack trace.Stack, ctx *traceContext) {

-- expect --
FAILURE ".*expected a proc but didn't have one.*"
-- trace --
Trace Go1.22
EventBatch gen=1 m=0 time=0 size=34
GoCreateSyscall dt=1 new_g=4
ProcStatus dt=1 p=0 pstatus=2
ProcStart dt=1 p=0 p_seq=1
GoSyscallEndBlocked dt=1
GoStart dt=1 g=4 g_seq=1
GoSyscallBegin dt=1 p_seq=2 stack=0
GoDestroySyscall dt=1
GoCreateSyscall dt=1 new_g=4
GoSyscallEnd dt=1
GoSyscallBegin dt=1 p_seq=3 stack=0
GoDestroySyscall dt=1

	main·panic1(0xae30, 0x0)
main·main+0x23 /Users/rsc/goX/test/bugs/bug142.go:10
	main·main()
mainstart+0xf /Users/rsc/goX/src/runtime/amd64/asm.s:53
	mainstart()
sys·Goexit /Users/rsc/goX/src/runtime/proc.c:124
	sys·Goexit()
; 

	"github.com/opencontainers/selinux/go-selinux"
	"golang.org/x/sys/unix"
	"k8s.io/klog/v2"
	"k8s.io/mount-utils"
	utilpath "k8s.io/utils/path"
)

const (
	// Location of the mountinfo file
	procMountInfoPath = "/proc/self/mountinfo"
)

// HostUtil implements HostUtils for Linux platforms.
type HostUtil struct {
}

// NewHostUtil returns a struct that implements the HostUtils interface on
// linux platforms

-- expect --
FAILURE "expected a proc but didn't have one"
-- trace --
Trace Go1.22
EventBatch gen=1 m=0 time=0 size=5
Frequency freq=15625000
EventBatch gen=1 m=0 time=0 size=5
GoCreate dt=0 new_g=1 new_stack=0 stack=0

	// process could in container and shared pid namespace with host, and
	// /proc/1/cgroup could point to whole other world of cgroups.
	initPath, err := libcontainercgroups.GetOwnCgroup("devices")
	if err != nil {
		return "", err
	}
	// This is needed for nested containers, because in /proc/self/cgroup we
	// see paths from host, which don't exist in container.
	relDir, err := filepath.Rel(root, initPath)

// license that can be found in the LICENSE file.

//go:build plan9

package os

import (
	"internal/itoa"
	"syscall"
)

func executable() (string, error) {
	fn := "/proc/" + itoa.Itoa(Getpid()) + "/text"
	f, err := Open(fn)
	if err != nil {
		return "", err
	}
	defer f.Close()
	return syscall.Fd2path(int(f.Fd()))