skipMask := off / goarch.PtrSize / 8
	skipBytes := skipMask * goarch.PtrSize * 8
	ptrmask := addb(gcbits, skipMask)
	src = add(src, skipBytes)
	off -= skipBytes
	size += off
	var bits uint32
	for i := uintptr(0); i < size; i += goarch.PtrSize {
		if i&(goarch.PtrSize*8-1) == 0 {
			bits = uint32(*ptrmask)
			ptrmask = addb(ptrmask, 1)
		} else {
			bits >>= 1
		}
		if off > 0 {
			off -= goarch.PtrSize

// pointer-like value in the block as a pointer.
//
// If ptrmask != nil, only words that are marked in ptrmask are
// considered as potential pointers.
//
// If state != nil, it's assumed that [b, b+n) is a block in the stack
// and may contain pointers to stack objects.
func scanConservative(b, n uintptr, ptrmask *uint8, gcw *gcWork, state *stackScanState) {
	if debugScanConservative {
		printlock()

	if ((($darwin || ($openbsd && $libc)) && $func =~ /^ptrace(Ptr)?$/)) {
		# The ptrace function is called from forkAndExecInChild where stack
		# growth is forbidden.
		$text .= "//go:nosplit\n"
	}

	# Go function header.
	my $out_decl = @out ? sprintf(" (%s)", join(', ', @out)) : "";
	$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out_decl;

	# Disable ptrace on iOS.
	if ($darwin && $func =~ /^ptrace(Ptr)?$/) {

	return ptrace(PTRACE_SYSCALL, pid, 0, uintptr(signal))
}

func PtraceSingleStep(pid int) (err error) { return ptrace(PTRACE_SINGLESTEP, pid, 0, 0) }

func PtraceAttach(pid int) (err error) { return ptrace(PTRACE_ATTACH, pid, 0, 0) }

func PtraceDetach(pid int) (err error) { return ptrace(PTRACE_DETACH, pid, 0, 0) }

//sys	reboot(magic1 uint, magic2 uint, cmd int, arg string) (err error)

}

type SysProcAttr struct {
	Chroot     string      // Chroot.
	Credential *Credential // Credential.
	// Ptrace tells the child to call ptrace(PTRACE_TRACEME).
	// Call runtime.LockOSThread before starting a process with this set,
	// and don't call UnlockOSThread until done with PtraceSyscall calls.
	Ptrace bool
	Setsid bool // Create session.
	// Setpgid sets the process group ID of the child to Pgid,

#define _DARWIN_USE_64_BIT_INODE
#define __APPLE_USE_RFC_3542
#include <stdint.h>
#include <sys/attr.h>
#include <sys/clonefile.h>
#include <sys/kern_control.h>
#include <sys/types.h>
#include <sys/event.h>
#include <sys/ptrace.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/un.h>
#include <sys/sockio.h>
#include <sys/sys_domain.h>
#include <sys/sysctl.h>
#include <sys/mman.h>

//sysnb fork() (pid int, err error)
//sysnb execve(path *byte, argv **byte, envp **byte) (err error)
//sysnb exit(res int) (err error)
//sys   ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
//sysnb getentropy(p []byte) (err error)
//sys   fstatat(fd int, path string, stat *Stat_t, flags int) (err error)

            }
        }
    }

    private
    fun formatUnsupportedConstruct(unsupportedConstruct: UnsupportedConstruct) =
        // TODO: use a proper phrase instead of the feature enum value name
        "${locationPrefixString(unsupportedConstruct.erroneousSource)}: unsupported language feature: ${unsupportedConstruct.languageFeature}"

    private

func direntNamlen(buf []byte) (uint64, bool) {
	return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen))
}

func PtraceAttach(pid int) (err error) { return ptrace(PT_ATTACH, pid, 0, 0) }
func PtraceDetach(pid int) (err error) { return ptrace(PT_DETACH, pid, 0, 0) }

//sysnb pipe(p *[2]int32) (err error)

func Pipe(p []int) (err error) {
	if len(p) != 2 {
		return EINVAL
	}
	var q [2]int32
	err = pipe(&q)

	github.com/prometheus/procfs v0.12.0 // indirect
	github.com/sirupsen/logrus v1.9.3 // indirect
	github.com/soheilhy/cmux v0.1.5 // indirect
	github.com/spf13/cobra v1.8.0 // indirect
	github.com/stoewer/go-strcase v1.2.0 // indirect
	github.com/tmc/grpc-websocket-proxy v0.0.0-20220101234140-673ab2c3ae75 // indirect
	github.com/x448/float16 v0.8.4 // indirect
	github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 // indirect