src

Go monorepo.
git clone git://code.dwrz.net/src
Log | Files | Refs

syscall_linux_arm64.go (6104B)

      1 // Copyright 2015 The Go Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style
      3 // license that can be found in the LICENSE file.
      4 
      5 //go:build arm64 && linux
      6 
      7 package unix
      8 
      9 import "unsafe"
     10 
     11 //sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
     12 //sys	Fchown(fd int, uid int, gid int) (err error)
     13 //sys	Fstat(fd int, stat *Stat_t) (err error)
     14 //sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
     15 //sys	Fstatfs(fd int, buf *Statfs_t) (err error)
     16 //sys	Ftruncate(fd int, length int64) (err error)
     17 //sysnb	Getegid() (egid int)
     18 //sysnb	Geteuid() (euid int)
     19 //sysnb	Getgid() (gid int)
     20 //sysnb	getrlimit(resource int, rlim *Rlimit) (err error)
     21 //sysnb	Getuid() (uid int)
     22 //sys	Listen(s int, n int) (err error)
     23 //sys	MemfdSecret(flags int) (fd int, err error)
     24 //sys	pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
     25 //sys	pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
     26 //sys	Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
     27 //sys	Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
     28 
     29 func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) {
     30 	var ts *Timespec
     31 	if timeout != nil {
     32 		ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000}
     33 	}
     34 	return pselect6(nfd, r, w, e, ts, nil)
     35 }
     36 
     37 //sys	sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
     38 //sys	setfsgid(gid int) (prev int, err error)
     39 //sys	setfsuid(uid int) (prev int, err error)
     40 //sys	Shutdown(fd int, how int) (err error)
     41 //sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
     42 
     43 func Stat(path string, stat *Stat_t) (err error) {
     44 	return Fstatat(AT_FDCWD, path, stat, 0)
     45 }
     46 
     47 func Lchown(path string, uid int, gid int) (err error) {
     48 	return Fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW)
     49 }
     50 
     51 func Lstat(path string, stat *Stat_t) (err error) {
     52 	return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW)
     53 }
     54 
     55 //sys	Statfs(path string, buf *Statfs_t) (err error)
     56 //sys	SyncFileRange(fd int, off int64, n int64, flags int) (err error)
     57 //sys	Truncate(path string, length int64) (err error)
     58 
     59 func Ustat(dev int, ubuf *Ustat_t) (err error) {
     60 	return ENOSYS
     61 }
     62 
     63 //sys	accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
     64 //sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
     65 //sys	connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
     66 //sysnb	getgroups(n int, list *_Gid_t) (nn int, err error)
     67 //sysnb	setgroups(n int, list *_Gid_t) (err error)
     68 //sys	getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
     69 //sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
     70 //sysnb	socket(domain int, typ int, proto int) (fd int, err error)
     71 //sysnb	socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
     72 //sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
     73 //sysnb	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
     74 //sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
     75 //sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
     76 //sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
     77 //sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
     78 //sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
     79 
     80 //sysnb	Gettimeofday(tv *Timeval) (err error)
     81 
     82 func setTimespec(sec, nsec int64) Timespec {
     83 	return Timespec{Sec: sec, Nsec: nsec}
     84 }
     85 
     86 func setTimeval(sec, usec int64) Timeval {
     87 	return Timeval{Sec: sec, Usec: usec}
     88 }
     89 
     90 func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) {
     91 	if tv == nil {
     92 		return utimensat(dirfd, path, nil, 0)
     93 	}
     94 
     95 	ts := []Timespec{
     96 		NsecToTimespec(TimevalToNsec(tv[0])),
     97 		NsecToTimespec(TimevalToNsec(tv[1])),
     98 	}
     99 	return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
    100 }
    101 
    102 func Time(t *Time_t) (Time_t, error) {
    103 	var tv Timeval
    104 	err := Gettimeofday(&tv)
    105 	if err != nil {
    106 		return 0, err
    107 	}
    108 	if t != nil {
    109 		*t = Time_t(tv.Sec)
    110 	}
    111 	return Time_t(tv.Sec), nil
    112 }
    113 
    114 func Utime(path string, buf *Utimbuf) error {
    115 	if buf == nil {
    116 		return Utimes(path, nil)
    117 	}
    118 	tv := []Timeval{
    119 		{Sec: buf.Actime},
    120 		{Sec: buf.Modtime},
    121 	}
    122 	return Utimes(path, tv)
    123 }
    124 
    125 func utimes(path string, tv *[2]Timeval) (err error) {
    126 	if tv == nil {
    127 		return utimensat(AT_FDCWD, path, nil, 0)
    128 	}
    129 
    130 	ts := []Timespec{
    131 		NsecToTimespec(TimevalToNsec(tv[0])),
    132 		NsecToTimespec(TimevalToNsec(tv[1])),
    133 	}
    134 	return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
    135 }
    136 
    137 // Getrlimit prefers the prlimit64 system call. See issue 38604.
    138 func Getrlimit(resource int, rlim *Rlimit) error {
    139 	err := Prlimit(0, resource, nil, rlim)
    140 	if err != ENOSYS {
    141 		return err
    142 	}
    143 	return getrlimit(resource, rlim)
    144 }
    145 
    146 func (r *PtraceRegs) PC() uint64 { return r.Pc }
    147 
    148 func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc }
    149 
    150 func (iov *Iovec) SetLen(length int) {
    151 	iov.Len = uint64(length)
    152 }
    153 
    154 func (msghdr *Msghdr) SetControllen(length int) {
    155 	msghdr.Controllen = uint64(length)
    156 }
    157 
    158 func (msghdr *Msghdr) SetIovlen(length int) {
    159 	msghdr.Iovlen = uint64(length)
    160 }
    161 
    162 func (cmsg *Cmsghdr) SetLen(length int) {
    163 	cmsg.Len = uint64(length)
    164 }
    165 
    166 func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) {
    167 	rsa.Service_name_len = uint64(length)
    168 }
    169 
    170 func Pause() error {
    171 	_, err := ppoll(nil, 0, nil, nil)
    172 	return err
    173 }
    174 
    175 //sys	kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error)
    176 
    177 func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error {
    178 	cmdlineLen := len(cmdline)
    179 	if cmdlineLen > 0 {
    180 		// Account for the additional NULL byte added by
    181 		// BytePtrFromString in kexecFileLoad. The kexec_file_load
    182 		// syscall expects a NULL-terminated string.
    183 		cmdlineLen++
    184 	}
    185 	return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)
    186 }
    187 
    188 const SYS_FSTATAT = SYS_NEWFSTATAT