if err != nil {
		return err
	}
	envvp, err := SlicePtrFromStrings(envv)
	if err != nil {
		return err
	}
	runtime_BeforeExec()

	rlim := origRlimitNofile.Load()
	if rlim != nil {
		Setrlimit(RLIMIT_NOFILE, rlim)
	}

	var err1 error
	if runtime.GOOS == "solaris" || runtime.GOOS == "illumos" || runtime.GOOS == "aix" {
		// RawSyscall should never be used on Solaris, illumos, or AIX.

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

//go:build aix && ppc64

package unix

//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
//sys	Seek(fd int, offset int64, whence int) (off int64, err error) = lseek

//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) = mmap64

	return Timespec{Sec: sec, Nsec: nsec}
}

func setTimeval(sec, usec int64) Timeval {
	return Timeval{Sec: sec, Usec: usec}
}

func Getrlimit(resource int, rlim *Rlimit) (err error) {
	err = Prlimit(0, resource, nil, rlim)
	return
}

func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) {
	if tv == nil {
		return utimensat(dirfd, path, nil, 0)
	}

	ts := []Timespec{

//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
//sys	Ftruncate(fd int, length int64) (err error)
//sysnb	Getegid() (egid int)
//sysnb	Geteuid() (euid int)
//sysnb	Getgid() (gid int)
//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
//sysnb	Getuid() (uid int)
//sys	Lchown(path string, uid int, gid int) (err error)
//sys	Listen(s int, n int) (err error)
//sys	Lstat(path string, stat *Stat_t) (err error)
//sys	Pause() (err error)

//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
//sys	Ftruncate(fd int, length int64) (err error)
//sysnb	Getegid() (egid int)
//sysnb	Geteuid() (euid int)
//sysnb	Getgid() (gid int)
//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error) = SYS_UGETRLIMIT
//sysnb	Getuid() (uid int)
//sys	Ioperm(from int, num int, on int) (err error)
//sys	Iopl(level int) (err error)
//sys	Lchown(path string, uid int, gid int) (err error)

//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
//sys	Ftruncate(fd int, length int64) (err error)
//sysnb	Getegid() (egid int)
//sysnb	Geteuid() (euid int)
//sysnb	Getgid() (gid int)
//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
//sysnb	Getuid() (uid int)
//sys	Ioperm(from int, num int, on int) (err error)
//sys	Iopl(level int) (err error)
//sys	Lchown(path string, uid int, gid int) (err error)

//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
//sys	Ftruncate(fd int, length int64) (err error)
//sysnb	Getegid() (egid int)
//sysnb	Geteuid() (euid int)
//sysnb	Getgid() (gid int)
//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
//sysnb	Getuid() (uid int)
//sys	Listen(s int, n int) (err error)
//sys	MemfdSecret(flags int) (fd int, err error)
//sys	pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64

//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
//sys	Ftruncate(fd int, length int64) (err error)
//sysnb	Getegid() (egid int)
//sysnb	Geteuid() (euid int)
//sysnb	Getgid() (gid int)
//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
//sysnb	Getuid() (uid int)
//sys	Lchown(path string, uid int, gid int) (err error)
//sys	Listen(s int, n int) (err error)
//sys	Pause() (err error)

	Recvpipe uint32
	Sendpipe uint32
	Ssthresh uint32
	Rtt      uint32
	Rttvar   uint32
	Pad      uint32
}

type Mclpool struct {
	Grown int32
	Alive uint16
	Hwm   uint16
	Cwm   uint16
	Lwm   uint16
}

const (
	SizeofBpfVersion = 0x4
	SizeofBpfStat    = 0x8
	SizeofBpfProgram = 0x8
	SizeofBpfInsn    = 0x8
	SizeofBpfHdr     = 0x14
)

type BpfVersion struct {
	Major uint16

	Recvpipe uint32
	Sendpipe uint32
	Ssthresh uint32
	Rtt      uint32
	Rttvar   uint32
	Pad      uint32
}

type Mclpool struct {
	Grown int32
	Alive uint16
	Hwm   uint16
	Cwm   uint16
	Lwm   uint16
}

const (
	SizeofBpfVersion = 0x4
	SizeofBpfStat    = 0x8
	SizeofBpfProgram = 0x10
	SizeofBpfInsn    = 0x8
	SizeofBpfHdr     = 0x14
)

type BpfVersion struct {
	Major uint16