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Add syscall wrappers, error constants and types for linux/riscv64 Switch docker image to Ubuntu 18.10 in order to get qemu supporting riscv64. Also set the uname release string for qemu to 4.15 (the first Linux kernel version with riscv64 support), because otherwise running the generating C program in mkerrors.sh on a host with an older kernel would fail with a "FATAL: kernel too old". Note that linux/riscv64 is currently only usable using gccgo. Updates golang/go#27532 Change-Id: Ic420f842342418443474cac72d38adff14d1b938 Reviewed-on: https://go-review.googlesource.com/133735 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,212 @@ | ||
| // Copyright 2018 The Go Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style | ||
| // license that can be found in the LICENSE file. | ||
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| // +build riscv64,linux | ||
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| package unix | ||
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| import "unsafe" | ||
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| func EpollCreate(size int) (fd int, err error) { | ||
| if size <= 0 { | ||
| return -1, EINVAL | ||
| } | ||
| return EpollCreate1(0) | ||
| } | ||
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| //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT | ||
| //sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64 | ||
| //sys Fchown(fd int, uid int, gid int) (err error) | ||
| //sys Fstat(fd int, stat *Stat_t) (err error) | ||
| //sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) | ||
| //sys Fstatfs(fd int, buf *Statfs_t) (err error) | ||
| //sys Ftruncate(fd int, length int64) (err error) | ||
| //sysnb Getegid() (egid int) | ||
| //sysnb Geteuid() (euid int) | ||
| //sysnb Getgid() (gid int) | ||
| //sysnb Getrlimit(resource int, rlim *Rlimit) (err error) | ||
| //sysnb Getuid() (uid int) | ||
| //sys Listen(s int, n int) (err error) | ||
| //sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 | ||
| //sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 | ||
| //sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK | ||
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| func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) { | ||
| var ts *Timespec | ||
| if timeout != nil { | ||
| ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000} | ||
| } | ||
| return Pselect(nfd, r, w, e, ts, nil) | ||
| } | ||
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| //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) | ||
| //sys Setfsgid(gid int) (err error) | ||
| //sys Setfsuid(uid int) (err error) | ||
| //sysnb Setregid(rgid int, egid int) (err error) | ||
| //sysnb Setresgid(rgid int, egid int, sgid int) (err error) | ||
| //sysnb Setresuid(ruid int, euid int, suid int) (err error) | ||
| //sysnb Setrlimit(resource int, rlim *Rlimit) (err error) | ||
| //sysnb Setreuid(ruid int, euid int) (err error) | ||
| //sys Shutdown(fd int, how int) (err error) | ||
| //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) | ||
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| func Stat(path string, stat *Stat_t) (err error) { | ||
| return Fstatat(AT_FDCWD, path, stat, 0) | ||
| } | ||
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| func Lchown(path string, uid int, gid int) (err error) { | ||
| return Fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW) | ||
| } | ||
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| func Lstat(path string, stat *Stat_t) (err error) { | ||
| return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW) | ||
| } | ||
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| //sys Statfs(path string, buf *Statfs_t) (err error) | ||
| //sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) | ||
| //sys Truncate(path string, length int64) (err error) | ||
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| func Ustat(dev int, ubuf *Ustat_t) (err error) { | ||
| return ENOSYS | ||
| } | ||
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| //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) | ||
| //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) | ||
| //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) | ||
| //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) | ||
| //sysnb getgroups(n int, list *_Gid_t) (nn int, err error) | ||
| //sysnb setgroups(n int, list *_Gid_t) (err error) | ||
| //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) | ||
| //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) | ||
| //sysnb socket(domain int, typ int, proto int) (fd int, err error) | ||
| //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) | ||
| //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) | ||
| //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) | ||
| //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) | ||
| //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) | ||
| //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) | ||
| //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) | ||
| //sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) | ||
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| //sysnb Gettimeofday(tv *Timeval) (err error) | ||
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| func setTimespec(sec, nsec int64) Timespec { | ||
| return Timespec{Sec: sec, Nsec: nsec} | ||
| } | ||
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| func setTimeval(sec, usec int64) Timeval { | ||
| return Timeval{Sec: sec, Usec: usec} | ||
| } | ||
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| func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) { | ||
| if tv == nil { | ||
| return utimensat(dirfd, path, nil, 0) | ||
| } | ||
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| ts := []Timespec{ | ||
| NsecToTimespec(TimevalToNsec(tv[0])), | ||
| NsecToTimespec(TimevalToNsec(tv[1])), | ||
| } | ||
| return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) | ||
| } | ||
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| func Time(t *Time_t) (Time_t, error) { | ||
| var tv Timeval | ||
| err := Gettimeofday(&tv) | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| if t != nil { | ||
| *t = Time_t(tv.Sec) | ||
| } | ||
| return Time_t(tv.Sec), nil | ||
| } | ||
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| func Utime(path string, buf *Utimbuf) error { | ||
| tv := []Timeval{ | ||
| {Sec: buf.Actime}, | ||
| {Sec: buf.Modtime}, | ||
| } | ||
| return Utimes(path, tv) | ||
| } | ||
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| func utimes(path string, tv *[2]Timeval) (err error) { | ||
| if tv == nil { | ||
| return utimensat(AT_FDCWD, path, nil, 0) | ||
| } | ||
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| ts := []Timespec{ | ||
| NsecToTimespec(TimevalToNsec(tv[0])), | ||
| NsecToTimespec(TimevalToNsec(tv[1])), | ||
| } | ||
| return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) | ||
| } | ||
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| func Pipe(p []int) (err error) { | ||
| if len(p) != 2 { | ||
| return EINVAL | ||
| } | ||
| var pp [2]_C_int | ||
| err = pipe2(&pp, 0) | ||
| p[0] = int(pp[0]) | ||
| p[1] = int(pp[1]) | ||
| return | ||
| } | ||
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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) { | ||
| if len(p) != 2 { | ||
| return EINVAL | ||
| } | ||
| var pp [2]_C_int | ||
| err = pipe2(&pp, flags) | ||
| p[0] = int(pp[0]) | ||
| p[1] = int(pp[1]) | ||
| return | ||
| } | ||
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| func (r *PtraceRegs) PC() uint64 { return r.Pc } | ||
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| func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc } | ||
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| func (iov *Iovec) SetLen(length int) { | ||
| iov.Len = uint64(length) | ||
| } | ||
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| func (msghdr *Msghdr) SetControllen(length int) { | ||
| msghdr.Controllen = uint64(length) | ||
| } | ||
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| func (cmsg *Cmsghdr) SetLen(length int) { | ||
| cmsg.Len = uint64(length) | ||
| } | ||
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| func InotifyInit() (fd int, err error) { | ||
| return InotifyInit1(0) | ||
| } | ||
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| func Dup2(oldfd int, newfd int) (err error) { | ||
| return Dup3(oldfd, newfd, 0) | ||
| } | ||
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| func Pause() (err error) { | ||
| _, _, e1 := Syscall6(SYS_PPOLL, 0, 0, 0, 0, 0, 0) | ||
| if e1 != 0 { | ||
| err = errnoErr(e1) | ||
| } | ||
| return | ||
| } | ||
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| func Poll(fds []PollFd, timeout int) (n int, err error) { | ||
| var ts *Timespec | ||
| if timeout >= 0 { | ||
| ts = new(Timespec) | ||
| *ts = NsecToTimespec(int64(timeout) * 1e6) | ||
| } | ||
| if len(fds) == 0 { | ||
| return ppoll(nil, 0, ts, nil) | ||
| } | ||
| return ppoll(&fds[0], len(fds), ts, nil) | ||
| } |
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