github.com/nibnait/go-learn@v0.0.0-20220227013611-dfa47ea6d2da/src/pkg/mod/golang.org/x/sys@v0.0.0-20210630005230-0f9fa26af87c/unix/syscall_linux_amd64.go (about) 1 // Copyright 2009 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 amd64 && linux 6 // +build amd64,linux 7 8 package unix 9 10 //sys dup2(oldfd int, newfd int) (err error) 11 //sysnb EpollCreate(size int) (fd int, err error) 12 //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) 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(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_NEWFSTATAT 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 //sysnb inotifyInit() (fd int, err error) 25 26 func InotifyInit() (fd int, err error) { 27 // First try inotify_init1, because Android's seccomp policy blocks the latter. 28 fd, err = InotifyInit1(0) 29 if err == ENOSYS { 30 fd, err = inotifyInit() 31 } 32 return 33 } 34 35 //sys Ioperm(from int, num int, on int) (err error) 36 //sys Iopl(level int) (err error) 37 //sys Lchown(path string, uid int, gid int) (err error) 38 //sys Listen(s int, n int) (err error) 39 40 func Lstat(path string, stat *Stat_t) (err error) { 41 return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW) 42 } 43 44 //sys Pause() (err error) 45 //sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 46 //sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 47 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) 48 //sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK 49 50 func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) { 51 var ts *Timespec 52 if timeout != nil { 53 ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000} 54 } 55 return Pselect(nfd, r, w, e, ts, nil) 56 } 57 58 //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) 59 //sys setfsgid(gid int) (prev int, err error) 60 //sys setfsuid(uid int) (prev int, err error) 61 //sysnb Setregid(rgid int, egid int) (err error) 62 //sysnb Setresgid(rgid int, egid int, sgid int) (err error) 63 //sysnb Setresuid(ruid int, euid int, suid int) (err error) 64 //sysnb Setrlimit(resource int, rlim *Rlimit) (err error) 65 //sysnb Setreuid(ruid int, euid int) (err error) 66 //sys Shutdown(fd int, how int) (err error) 67 //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) 68 69 func Stat(path string, stat *Stat_t) (err error) { 70 // Use fstatat, because Android's seccomp policy blocks stat. 71 return Fstatat(AT_FDCWD, path, stat, 0) 72 } 73 74 //sys Statfs(path string, buf *Statfs_t) (err error) 75 //sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) 76 //sys Truncate(path string, length int64) (err error) 77 //sys Ustat(dev int, ubuf *Ustat_t) (err error) 78 //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) 79 //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) 80 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 81 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 82 //sysnb getgroups(n int, list *_Gid_t) (nn int, err error) 83 //sysnb setgroups(n int, list *_Gid_t) (err error) 84 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) 85 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) 86 //sysnb socket(domain int, typ int, proto int) (fd int, err error) 87 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) 88 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 89 //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 90 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) 91 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) 92 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) 93 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) 94 //sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) 95 96 //sys futimesat(dirfd int, path string, times *[2]Timeval) (err error) 97 98 func Gettimeofday(tv *Timeval) (err error) { 99 errno := gettimeofday(tv) 100 if errno != 0 { 101 return errno 102 } 103 return nil 104 } 105 106 func Time(t *Time_t) (tt Time_t, err error) { 107 var tv Timeval 108 errno := gettimeofday(&tv) 109 if errno != 0 { 110 return 0, errno 111 } 112 if t != nil { 113 *t = Time_t(tv.Sec) 114 } 115 return Time_t(tv.Sec), nil 116 } 117 118 //sys Utime(path string, buf *Utimbuf) (err error) 119 //sys utimes(path string, times *[2]Timeval) (err error) 120 121 func setTimespec(sec, nsec int64) Timespec { 122 return Timespec{Sec: sec, Nsec: nsec} 123 } 124 125 func setTimeval(sec, usec int64) Timeval { 126 return Timeval{Sec: sec, Usec: usec} 127 } 128 129 //sysnb pipe(p *[2]_C_int) (err error) 130 131 func Pipe(p []int) (err error) { 132 if len(p) != 2 { 133 return EINVAL 134 } 135 var pp [2]_C_int 136 err = pipe(&pp) 137 p[0] = int(pp[0]) 138 p[1] = int(pp[1]) 139 return 140 } 141 142 //sysnb pipe2(p *[2]_C_int, flags int) (err error) 143 144 func Pipe2(p []int, flags int) (err error) { 145 if len(p) != 2 { 146 return EINVAL 147 } 148 var pp [2]_C_int 149 err = pipe2(&pp, flags) 150 p[0] = int(pp[0]) 151 p[1] = int(pp[1]) 152 return 153 } 154 155 func (r *PtraceRegs) PC() uint64 { return r.Rip } 156 157 func (r *PtraceRegs) SetPC(pc uint64) { r.Rip = pc } 158 159 func (iov *Iovec) SetLen(length int) { 160 iov.Len = uint64(length) 161 } 162 163 func (msghdr *Msghdr) SetControllen(length int) { 164 msghdr.Controllen = uint64(length) 165 } 166 167 func (msghdr *Msghdr) SetIovlen(length int) { 168 msghdr.Iovlen = uint64(length) 169 } 170 171 func (cmsg *Cmsghdr) SetLen(length int) { 172 cmsg.Len = uint64(length) 173 } 174 175 func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) { 176 rsa.Service_name_len = uint64(length) 177 } 178 179 //sys poll(fds *PollFd, nfds int, timeout int) (n int, err error) 180 181 func Poll(fds []PollFd, timeout int) (n int, err error) { 182 if len(fds) == 0 { 183 return poll(nil, 0, timeout) 184 } 185 return poll(&fds[0], len(fds), timeout) 186 } 187 188 //sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error) 189 190 func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error { 191 cmdlineLen := len(cmdline) 192 if cmdlineLen > 0 { 193 // Account for the additional NULL byte added by 194 // BytePtrFromString in kexecFileLoad. The kexec_file_load 195 // syscall expects a NULL-terminated string. 196 cmdlineLen++ 197 } 198 return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags) 199 }