syscall_aix_ppc64.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  //go:build aix && ppc64
     6  // +build aix,ppc64
     7  
     8  package unix
     9  
    10  //sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
    11  //sysnb	Setrlimit(resource int, rlim *Rlimit) (err error)
    12  //sys	Seek(fd int, offset int64, whence int) (off int64, err error) = lseek
    13  
    14  //sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) = mmap64
    15  
    16  func setTimespec(sec, nsec int64) Timespec {
    17  	return Timespec{Sec: sec, Nsec: nsec}
    18  }
    19  
    20  func setTimeval(sec, usec int64) Timeval {
    21  	return Timeval{Sec: int64(sec), Usec: int32(usec)}
    22  }
    23  
    24  func (iov *Iovec) SetLen(length int) {
    25  	iov.Len = uint64(length)
    26  }
    27  
    28  func (msghdr *Msghdr) SetControllen(length int) {
    29  	msghdr.Controllen = uint32(length)
    30  }
    31  
    32  func (msghdr *Msghdr) SetIovlen(length int) {
    33  	msghdr.Iovlen = int32(length)
    34  }
    35  
    36  func (cmsg *Cmsghdr) SetLen(length int) {
    37  	cmsg.Len = uint32(length)
    38  }
    39  
    40  // In order to only have Timespec structure, type of Stat_t's fields
    41  // Atim, Mtim and Ctim is changed from StTimespec to Timespec during
    42  // ztypes generation.
    43  // On ppc64, Timespec.Nsec is an int64 while StTimespec.Nsec is an
    44  // int32, so the fields' value must be modified.
    45  func fixStatTimFields(stat *Stat_t) {
    46  	stat.Atim.Nsec >>= 32
    47  	stat.Mtim.Nsec >>= 32
    48  	stat.Ctim.Nsec >>= 32
    49  }
    50  
    51  func Fstat(fd int, stat *Stat_t) error {
    52  	err := fstat(fd, stat)
    53  	if err != nil {
    54  		return err
    55  	}
    56  	fixStatTimFields(stat)
    57  	return nil
    58  }
    59  
    60  func Fstatat(dirfd int, path string, stat *Stat_t, flags int) error {
    61  	err := fstatat(dirfd, path, stat, flags)
    62  	if err != nil {
    63  		return err
    64  	}
    65  	fixStatTimFields(stat)
    66  	return nil
    67  }
    68  
    69  func Lstat(path string, stat *Stat_t) error {
    70  	err := lstat(path, stat)
    71  	if err != nil {
    72  		return err
    73  	}
    74  	fixStatTimFields(stat)
    75  	return nil
    76  }
    77  
    78  func Stat(path string, statptr *Stat_t) error {
    79  	err := stat(path, statptr)
    80  	if err != nil {
    81  		return err
    82  	}
    83  	fixStatTimFields(statptr)
    84  	return nil
    85  }
    86
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