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1 // Copyright 2022 The Go Authors. All rights reserved. |
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2 // Use of this source code is governed by a BSD-style |
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3 // license that can be found in the LICENSE file. |
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4 |
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5 //go:build riscv64 && freebsd |
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6 // +build riscv64,freebsd |
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7 |
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8 package unix |
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9 |
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10 import ( |
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11 "syscall" |
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12 "unsafe" |
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13 ) |
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14 |
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15 func setTimespec(sec, nsec int64) Timespec { |
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16 return Timespec{Sec: sec, Nsec: nsec} |
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17 } |
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18 |
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19 func setTimeval(sec, usec int64) Timeval { |
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20 return Timeval{Sec: sec, Usec: usec} |
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21 } |
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22 |
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23 func SetKevent(k *Kevent_t, fd, mode, flags int) { |
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24 k.Ident = uint64(fd) |
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25 k.Filter = int16(mode) |
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26 k.Flags = uint16(flags) |
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27 } |
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28 |
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29 func (iov *Iovec) SetLen(length int) { |
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30 iov.Len = uint64(length) |
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31 } |
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32 |
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33 func (msghdr *Msghdr) SetControllen(length int) { |
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34 msghdr.Controllen = uint32(length) |
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35 } |
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36 |
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37 func (msghdr *Msghdr) SetIovlen(length int) { |
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38 msghdr.Iovlen = int32(length) |
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39 } |
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40 |
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41 func (cmsg *Cmsghdr) SetLen(length int) { |
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42 cmsg.Len = uint32(length) |
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43 } |
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44 |
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45 func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { |
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46 var writtenOut uint64 = 0 |
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47 _, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(count), 0, uintptr(unsafe.Pointer(&writtenOut)), 0, 0, 0) |
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48 |
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49 written = int(writtenOut) |
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50 |
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51 if e1 != 0 { |
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52 err = e1 |
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53 } |
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54 return |
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55 } |
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56 |
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57 func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) |
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58 |
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59 func PtraceIO(req int, pid int, addr uintptr, out []byte, countin int) (count int, err error) { |
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60 ioDesc := PtraceIoDesc{Op: int32(req), Offs: (*byte)(unsafe.Pointer(addr)), Addr: (*byte)(unsafe.Pointer(&out[0])), Len: uint64(countin)} |
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61 err = ptrace(PT_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0) |
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62 return int(ioDesc.Len), err |
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63 } |