libgo/go/syscall/syscall_glibc.go

   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 hurd || linux
   6 // +build hurd linux
   7
   8 package syscall
   9
  10 import "unsafe"
  11
  12 func rawSyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr) {
  13         r1, r2, _ = RawSyscall(trap, a1, a2, a3)
  14         return
  15 }
  16
  17 func direntIno(buf []byte) (uint64, bool) {
  18         return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino))
  19 }
  20
  21 func direntReclen(buf []byte) (uint64, bool) {
  22         return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen))
  23 }
  24
  25 func direntNamlen(buf []byte) (uint64, bool) {
  26         reclen, ok := direntReclen(buf)
  27         if !ok {
  28                 return 0, false
  29         }
  30         return reclen - uint64(unsafe.Offsetof(Dirent{}.Name)), true
  31 }