Source file src/pkg/cmd/vendor/golang.org/x/sys/unix/syscall_linux_riscv64.go

     1	// Copyright 2018 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	// +build riscv64,linux
     6	
     7	package unix
     8	
     9	import "unsafe"
    10	
    11	func EpollCreate(size int) (fd int, err error) {
    12		if size <= 0 {
    13			return -1, EINVAL
    14		}
    15		return EpollCreate1(0)
    16	}
    17	
    18	//sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT
    19	//sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
    20	//sys	Fchown(fd int, uid int, gid int) (err error)
    21	//sys	Fstat(fd int, stat *Stat_t) (err error)
    22	//sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
    23	//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
    24	//sys	Ftruncate(fd int, length int64) (err error)
    25	//sysnb	Getegid() (egid int)
    26	//sysnb	Geteuid() (euid int)
    27	//sysnb	Getgid() (gid int)
    28	//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
    29	//sysnb	Getuid() (uid int)
    30	//sys	Listen(s int, n int) (err error)
    31	//sys	Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
    32	//sys	Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
    33	//sys	Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
    34	
    35	func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) {
    36		var ts *Timespec
    37		if timeout != nil {
    38			ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000}
    39		}
    40		return Pselect(nfd, r, w, e, ts, nil)
    41	}
    42	
    43	//sys	sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
    44	//sys	Setfsgid(gid int) (err error)
    45	//sys	Setfsuid(uid int) (err error)
    46	//sysnb	Setregid(rgid int, egid int) (err error)
    47	//sysnb	Setresgid(rgid int, egid int, sgid int) (err error)
    48	//sysnb	Setresuid(ruid int, euid int, suid int) (err error)
    49	//sysnb	Setrlimit(resource int, rlim *Rlimit) (err error)
    50	//sysnb	Setreuid(ruid int, euid int) (err error)
    51	//sys	Shutdown(fd int, how int) (err error)
    52	//sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
    53	
    54	func Stat(path string, stat *Stat_t) (err error) {
    55		return Fstatat(AT_FDCWD, path, stat, 0)
    56	}
    57	
    58	func Lchown(path string, uid int, gid int) (err error) {
    59		return Fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW)
    60	}
    61	
    62	func Lstat(path string, stat *Stat_t) (err error) {
    63		return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW)
    64	}
    65	
    66	//sys	Statfs(path string, buf *Statfs_t) (err error)
    67	//sys	SyncFileRange(fd int, off int64, n int64, flags int) (err error)
    68	//sys	Truncate(path string, length int64) (err error)
    69	
    70	func Ustat(dev int, ubuf *Ustat_t) (err error) {
    71		return ENOSYS
    72	}
    73	
    74	//sys	accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
    75	//sys	accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
    76	//sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
    77	//sys	connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
    78	//sysnb	getgroups(n int, list *_Gid_t) (nn int, err error)
    79	//sysnb	setgroups(n int, list *_Gid_t) (err error)
    80	//sys	getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
    81	//sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
    82	//sysnb	socket(domain int, typ int, proto int) (fd int, err error)
    83	//sysnb	socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
    84	//sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
    85	//sysnb	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
    86	//sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
    87	//sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
    88	//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
    89	//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
    90	//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
    91	
    92	//sysnb	Gettimeofday(tv *Timeval) (err error)
    93	
    94	func setTimespec(sec, nsec int64) Timespec {
    95		return Timespec{Sec: sec, Nsec: nsec}
    96	}
    97	
    98	func setTimeval(sec, usec int64) Timeval {
    99		return Timeval{Sec: sec, Usec: usec}
   100	}
   101	
   102	func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) {
   103		if tv == nil {
   104			return utimensat(dirfd, path, nil, 0)
   105		}
   106	
   107		ts := []Timespec{
   108			NsecToTimespec(TimevalToNsec(tv[0])),
   109			NsecToTimespec(TimevalToNsec(tv[1])),
   110		}
   111		return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
   112	}
   113	
   114	func Time(t *Time_t) (Time_t, error) {
   115		var tv Timeval
   116		err := Gettimeofday(&tv)
   117		if err != nil {
   118			return 0, err
   119		}
   120		if t != nil {
   121			*t = Time_t(tv.Sec)
   122		}
   123		return Time_t(tv.Sec), nil
   124	}
   125	
   126	func Utime(path string, buf *Utimbuf) error {
   127		tv := []Timeval{
   128			{Sec: buf.Actime},
   129			{Sec: buf.Modtime},
   130		}
   131		return Utimes(path, tv)
   132	}
   133	
   134	func utimes(path string, tv *[2]Timeval) (err error) {
   135		if tv == nil {
   136			return utimensat(AT_FDCWD, path, nil, 0)
   137		}
   138	
   139		ts := []Timespec{
   140			NsecToTimespec(TimevalToNsec(tv[0])),
   141			NsecToTimespec(TimevalToNsec(tv[1])),
   142		}
   143		return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
   144	}
   145	
   146	func Pipe(p []int) (err error) {
   147		if len(p) != 2 {
   148			return EINVAL
   149		}
   150		var pp [2]_C_int
   151		err = pipe2(&pp, 0)
   152		p[0] = int(pp[0])
   153		p[1] = int(pp[1])
   154		return
   155	}
   156	
   157	//sysnb pipe2(p *[2]_C_int, flags int) (err error)
   158	
   159	func Pipe2(p []int, flags int) (err error) {
   160		if len(p) != 2 {
   161			return EINVAL
   162		}
   163		var pp [2]_C_int
   164		err = pipe2(&pp, flags)
   165		p[0] = int(pp[0])
   166		p[1] = int(pp[1])
   167		return
   168	}
   169	
   170	func (r *PtraceRegs) PC() uint64 { return r.Pc }
   171	
   172	func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc }
   173	
   174	func (iov *Iovec) SetLen(length int) {
   175		iov.Len = uint64(length)
   176	}
   177	
   178	func (msghdr *Msghdr) SetControllen(length int) {
   179		msghdr.Controllen = uint64(length)
   180	}
   181	
   182	func (cmsg *Cmsghdr) SetLen(length int) {
   183		cmsg.Len = uint64(length)
   184	}
   185	
   186	func InotifyInit() (fd int, err error) {
   187		return InotifyInit1(0)
   188	}
   189	
   190	func Dup2(oldfd int, newfd int) (err error) {
   191		return Dup3(oldfd, newfd, 0)
   192	}
   193	
   194	func Pause() error {
   195		_, err := ppoll(nil, 0, nil, nil)
   196		return err
   197	}
   198	
   199	func Poll(fds []PollFd, timeout int) (n int, err error) {
   200		var ts *Timespec
   201		if timeout >= 0 {
   202			ts = new(Timespec)
   203			*ts = NsecToTimespec(int64(timeout) * 1e6)
   204		}
   205		if len(fds) == 0 {
   206			return ppoll(nil, 0, ts, nil)
   207		}
   208		return ppoll(&fds[0], len(fds), ts, nil)
   209	}
   210	
   211	func Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) {
   212		return Renameat2(olddirfd, oldpath, newdirfd, newpath, 0)
   213	}
   214	
   215	//sys	kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error)
   216	
   217	func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error {
   218		cmdlineLen := len(cmdline)
   219		if cmdlineLen > 0 {
   220			// Account for the additional NULL byte added by
   221			// BytePtrFromString in kexecFileLoad. The kexec_file_load
   222			// syscall expects a NULL-terminated string.
   223			cmdlineLen++
   224		}
   225		return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)
   226	}
   227	

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