github.com/neonyo/sys@v0.0.0-20230720094341-b1ee14be3ce8/unix/syscall_linux_arm64.go (about) 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 // +build arm64,linux 7 8 package unix 9 10 import "unsafe" 11 12 //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT 13 //sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64 14 //sys Fchown(fd int, uid int, gid int) (err error) 15 //sys Fstat(fd int, stat *Stat_t) (err error) 16 //sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) 17 //sys Fstatfs(fd int, buf *Statfs_t) (err error) 18 //sys Ftruncate(fd int, length int64) (err error) 19 //sysnb Getegid() (egid int) 20 //sysnb Geteuid() (euid int) 21 //sysnb Getgid() (gid int) 22 //sysnb getrlimit(resource int, rlim *Rlimit) (err error) 23 //sysnb Getuid() (uid int) 24 //sys Listen(s int, n int) (err error) 25 //sys MemfdSecret(flags int) (fd int, err error) 26 //sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 27 //sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 28 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) 29 //sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK 30 31 func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) { 32 var ts *Timespec 33 if timeout != nil { 34 ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000} 35 } 36 return pselect6(nfd, r, w, e, ts, nil) 37 } 38 39 //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) 40 //sys setfsgid(gid int) (prev int, err error) 41 //sys setfsuid(uid int) (prev int, err error) 42 //sys Shutdown(fd int, how int) (err error) 43 //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) 44 45 func Stat(path string, stat *Stat_t) (err error) { 46 return Fstatat(AT_FDCWD, path, stat, 0) 47 } 48 49 func Lchown(path string, uid int, gid int) (err error) { 50 return Fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW) 51 } 52 53 func Lstat(path string, stat *Stat_t) (err error) { 54 return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW) 55 } 56 57 //sys Statfs(path string, buf *Statfs_t) (err error) 58 //sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) 59 //sys Truncate(path string, length int64) (err error) 60 61 func Ustat(dev int, ubuf *Ustat_t) (err error) { 62 return ENOSYS 63 } 64 65 //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) 66 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 67 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 68 //sysnb getgroups(n int, list *_Gid_t) (nn int, err error) 69 //sysnb setgroups(n int, list *_Gid_t) (err error) 70 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) 71 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) 72 //sysnb socket(domain int, typ int, proto int) (fd int, err error) 73 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) 74 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 75 //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 76 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) 77 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) 78 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) 79 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) 80 //sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) 81 82 //sysnb Gettimeofday(tv *Timeval) (err error) 83 84 func setTimespec(sec, nsec int64) Timespec { 85 return Timespec{Sec: sec, Nsec: nsec} 86 } 87 88 func setTimeval(sec, usec int64) Timeval { 89 return Timeval{Sec: sec, Usec: usec} 90 } 91 92 func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) { 93 if tv == nil { 94 return utimensat(dirfd, path, nil, 0) 95 } 96 97 ts := []Timespec{ 98 NsecToTimespec(TimevalToNsec(tv[0])), 99 NsecToTimespec(TimevalToNsec(tv[1])), 100 } 101 return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) 102 } 103 104 func Time(t *Time_t) (Time_t, error) { 105 var tv Timeval 106 err := Gettimeofday(&tv) 107 if err != nil { 108 return 0, err 109 } 110 if t != nil { 111 *t = Time_t(tv.Sec) 112 } 113 return Time_t(tv.Sec), nil 114 } 115 116 func Utime(path string, buf *Utimbuf) error { 117 tv := []Timeval{ 118 {Sec: buf.Actime}, 119 {Sec: buf.Modtime}, 120 } 121 return Utimes(path, tv) 122 } 123 124 func utimes(path string, tv *[2]Timeval) (err error) { 125 if tv == nil { 126 return utimensat(AT_FDCWD, path, nil, 0) 127 } 128 129 ts := []Timespec{ 130 NsecToTimespec(TimevalToNsec(tv[0])), 131 NsecToTimespec(TimevalToNsec(tv[1])), 132 } 133 return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) 134 } 135 136 // Getrlimit prefers the prlimit64 system call. See issue 38604. 137 func Getrlimit(resource int, rlim *Rlimit) error { 138 err := Prlimit(0, resource, nil, rlim) 139 if err != ENOSYS { 140 return err 141 } 142 return getrlimit(resource, rlim) 143 } 144 145 func (r *PtraceRegs) PC() uint64 { return r.Pc } 146 147 func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc } 148 149 func (iov *Iovec) SetLen(length int) { 150 iov.Len = uint64(length) 151 } 152 153 func (msghdr *Msghdr) SetControllen(length int) { 154 msghdr.Controllen = uint64(length) 155 } 156 157 func (msghdr *Msghdr) SetIovlen(length int) { 158 msghdr.Iovlen = uint64(length) 159 } 160 161 func (cmsg *Cmsghdr) SetLen(length int) { 162 cmsg.Len = uint64(length) 163 } 164 165 func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) { 166 rsa.Service_name_len = uint64(length) 167 } 168 169 func Pause() error { 170 _, err := ppoll(nil, 0, nil, nil) 171 return err 172 } 173 174 //sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error) 175 176 func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error { 177 cmdlineLen := len(cmdline) 178 if cmdlineLen > 0 { 179 // Account for the additional NULL byte added by 180 // BytePtrFromString in kexecFileLoad. The kexec_file_load 181 // syscall expects a NULL-terminated string. 182 cmdlineLen++ 183 } 184 return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags) 185 }