Gibheer
fa05045d31
This is the import from the separate monfront repository. The history could not be imported, but this should suffice.
292 lines
8.7 KiB
Go
292 lines
8.7 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build arm && linux
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// +build arm,linux
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package unix
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import (
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"unsafe"
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)
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func setTimespec(sec, nsec int64) Timespec {
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return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
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}
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func setTimeval(sec, usec int64) Timeval {
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return Timeval{Sec: int32(sec), Usec: int32(usec)}
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}
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//sysnb pipe(p *[2]_C_int) (err error)
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func Pipe(p []int) (err error) {
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if len(p) != 2 {
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return EINVAL
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}
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var pp [2]_C_int
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// Try pipe2 first for Android O, then try pipe for kernel 2.6.23.
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err = pipe2(&pp, 0)
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if err == ENOSYS {
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err = pipe(&pp)
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}
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p[0] = int(pp[0])
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p[1] = int(pp[1])
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return
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}
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//sysnb pipe2(p *[2]_C_int, flags int) (err error)
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func Pipe2(p []int, flags int) (err error) {
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if len(p) != 2 {
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return EINVAL
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}
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var pp [2]_C_int
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err = pipe2(&pp, flags)
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p[0] = int(pp[0])
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p[1] = int(pp[1])
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return
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}
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func Seek(fd int, offset int64, whence int) (newoffset int64, err error) {
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newoffset, errno := seek(fd, offset, whence)
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if errno != 0 {
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return 0, errno
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}
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return newoffset, nil
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}
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//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
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//sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
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//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
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//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
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//sysnb getgroups(n int, list *_Gid_t) (nn int, err error) = SYS_GETGROUPS32
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//sysnb setgroups(n int, list *_Gid_t) (err error) = SYS_SETGROUPS32
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//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
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//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
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//sysnb socket(domain int, typ int, proto int) (fd int, err error)
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//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
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//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
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//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
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//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
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//sysnb socketpair(domain int, typ int, flags int, fd *[2]int32) (err error)
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//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
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//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
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// 64-bit file system and 32-bit uid calls
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// (16-bit uid calls are not always supported in newer kernels)
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//sys dup2(oldfd int, newfd int) (err error)
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//sysnb EpollCreate(size int) (fd int, err error)
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//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
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//sys Fchown(fd int, uid int, gid int) (err error) = SYS_FCHOWN32
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//sys Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
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//sys Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
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//sysnb Getegid() (egid int) = SYS_GETEGID32
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//sysnb Geteuid() (euid int) = SYS_GETEUID32
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//sysnb Getgid() (gid int) = SYS_GETGID32
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//sysnb Getuid() (uid int) = SYS_GETUID32
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//sysnb InotifyInit() (fd int, err error)
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//sys Lchown(path string, uid int, gid int) (err error) = SYS_LCHOWN32
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//sys Listen(s int, n int) (err error)
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//sys Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
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//sys Pause() (err error)
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//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
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//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64
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//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT
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//sys setfsgid(gid int) (prev int, err error) = SYS_SETFSGID32
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//sys setfsuid(uid int) (prev int, err error) = SYS_SETFSUID32
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//sysnb Setregid(rgid int, egid int) (err error) = SYS_SETREGID32
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//sysnb Setresgid(rgid int, egid int, sgid int) (err error) = SYS_SETRESGID32
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//sysnb Setresuid(ruid int, euid int, suid int) (err error) = SYS_SETRESUID32
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//sysnb Setreuid(ruid int, euid int) (err error) = SYS_SETREUID32
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//sys Shutdown(fd int, how int) (err error)
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//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)
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//sys Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
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//sys Ustat(dev int, ubuf *Ustat_t) (err error)
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//sys futimesat(dirfd int, path string, times *[2]Timeval) (err error)
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//sysnb Gettimeofday(tv *Timeval) (err error)
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func Time(t *Time_t) (Time_t, error) {
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var tv Timeval
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err := Gettimeofday(&tv)
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if err != nil {
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return 0, err
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}
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if t != nil {
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*t = Time_t(tv.Sec)
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}
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return Time_t(tv.Sec), nil
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}
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func Utime(path string, buf *Utimbuf) error {
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tv := []Timeval{
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{Sec: buf.Actime},
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{Sec: buf.Modtime},
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}
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return Utimes(path, tv)
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}
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//sys utimes(path string, times *[2]Timeval) (err error)
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//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
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//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
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//sys Truncate(path string, length int64) (err error) = SYS_TRUNCATE64
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//sys Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64
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func Fadvise(fd int, offset int64, length int64, advice int) (err error) {
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_, _, e1 := Syscall6(SYS_ARM_FADVISE64_64, uintptr(fd), uintptr(advice), uintptr(offset), uintptr(offset>>32), uintptr(length), uintptr(length>>32))
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if e1 != 0 {
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err = errnoErr(e1)
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}
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return
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}
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//sys mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error)
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func Fstatfs(fd int, buf *Statfs_t) (err error) {
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_, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
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if e != 0 {
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err = e
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}
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return
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}
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func Statfs(path string, buf *Statfs_t) (err error) {
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pathp, err := BytePtrFromString(path)
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if err != nil {
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return err
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}
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_, _, e := Syscall(SYS_STATFS64, uintptr(unsafe.Pointer(pathp)), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
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if e != 0 {
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err = e
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}
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return
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}
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func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) {
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page := uintptr(offset / 4096)
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if offset != int64(page)*4096 {
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return 0, EINVAL
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}
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return mmap2(addr, length, prot, flags, fd, page)
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}
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type rlimit32 struct {
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Cur uint32
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Max uint32
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}
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//sysnb getrlimit(resource int, rlim *rlimit32) (err error) = SYS_UGETRLIMIT
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const rlimInf32 = ^uint32(0)
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const rlimInf64 = ^uint64(0)
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func Getrlimit(resource int, rlim *Rlimit) (err error) {
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err = prlimit(0, resource, nil, rlim)
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if err != ENOSYS {
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return err
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}
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rl := rlimit32{}
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err = getrlimit(resource, &rl)
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if err != nil {
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return
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}
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if rl.Cur == rlimInf32 {
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rlim.Cur = rlimInf64
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} else {
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rlim.Cur = uint64(rl.Cur)
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}
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if rl.Max == rlimInf32 {
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rlim.Max = rlimInf64
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} else {
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rlim.Max = uint64(rl.Max)
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}
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return
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}
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//sysnb setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
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func Setrlimit(resource int, rlim *Rlimit) (err error) {
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err = prlimit(0, resource, rlim, nil)
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if err != ENOSYS {
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return err
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}
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rl := rlimit32{}
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if rlim.Cur == rlimInf64 {
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rl.Cur = rlimInf32
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} else if rlim.Cur < uint64(rlimInf32) {
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rl.Cur = uint32(rlim.Cur)
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} else {
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return EINVAL
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}
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if rlim.Max == rlimInf64 {
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rl.Max = rlimInf32
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} else if rlim.Max < uint64(rlimInf32) {
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rl.Max = uint32(rlim.Max)
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} else {
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return EINVAL
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}
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return setrlimit(resource, &rl)
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}
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func (r *PtraceRegs) PC() uint64 { return uint64(r.Uregs[15]) }
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func (r *PtraceRegs) SetPC(pc uint64) { r.Uregs[15] = uint32(pc) }
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func (iov *Iovec) SetLen(length int) {
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iov.Len = uint32(length)
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}
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func (msghdr *Msghdr) SetControllen(length int) {
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msghdr.Controllen = uint32(length)
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}
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func (msghdr *Msghdr) SetIovlen(length int) {
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msghdr.Iovlen = uint32(length)
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}
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func (cmsg *Cmsghdr) SetLen(length int) {
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cmsg.Len = uint32(length)
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}
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func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) {
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rsa.Service_name_len = uint32(length)
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}
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//sys poll(fds *PollFd, nfds int, timeout int) (n int, err error)
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func Poll(fds []PollFd, timeout int) (n int, err error) {
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if len(fds) == 0 {
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return poll(nil, 0, timeout)
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}
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return poll(&fds[0], len(fds), timeout)
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}
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//sys armSyncFileRange(fd int, flags int, off int64, n int64) (err error) = SYS_ARM_SYNC_FILE_RANGE
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func SyncFileRange(fd int, off int64, n int64, flags int) error {
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// The sync_file_range and arm_sync_file_range syscalls differ only in the
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// order of their arguments.
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return armSyncFileRange(fd, flags, off, n)
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}
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//sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error)
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func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error {
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cmdlineLen := len(cmdline)
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if cmdlineLen > 0 {
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// Account for the additional NULL byte added by
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// BytePtrFromString in kexecFileLoad. The kexec_file_load
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// syscall expects a NULL-terminated string.
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cmdlineLen++
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}
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return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)
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}
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