rsc.io/go@v0.0.0-20150416155037-e040fd465409/src/syscall/syscall_linux_amd64.go (about)

     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  package syscall
     6  
     7  const _SYS_dup = SYS_DUP2
     8  
     9  //sys	Dup2(oldfd int, newfd int) (err error)
    10  //sys	Fchown(fd int, uid int, gid int) (err error)
    11  //sys	Fstat(fd int, stat *Stat_t) (err error)
    12  //sys	Fstatfs(fd int, buf *Statfs_t) (err error)
    13  //sys	Ftruncate(fd int, length int64) (err error)
    14  //sysnb	Getegid() (egid int)
    15  //sysnb	Geteuid() (euid int)
    16  //sysnb	Getgid() (gid int)
    17  //sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
    18  //sysnb	Getuid() (uid int)
    19  //sys	Ioperm(from int, num int, on int) (err error)
    20  //sys	Iopl(level int) (err error)
    21  //sys	Lchown(path string, uid int, gid int) (err error)
    22  //sys	Listen(s int, n int) (err error)
    23  //sys	Lstat(path string, stat *Stat_t) (err error)
    24  //sys	Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
    25  //sys	Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
    26  //sys	Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
    27  //sys	Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
    28  //sys	sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
    29  //sys	Setfsgid(gid int) (err error)
    30  //sys	Setfsuid(uid int) (err error)
    31  //sysnb	Setregid(rgid int, egid int) (err error)
    32  //sysnb	Setresgid(rgid int, egid int, sgid int) (err error)
    33  //sysnb	Setresuid(ruid int, euid int, suid int) (err error)
    34  //sysnb	Setrlimit(resource int, rlim *Rlimit) (err error)
    35  //sysnb	Setreuid(ruid int, euid int) (err error)
    36  //sys	Shutdown(fd int, how int) (err error)
    37  //sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
    38  //sys	Stat(path string, stat *Stat_t) (err error)
    39  //sys	Statfs(path string, buf *Statfs_t) (err error)
    40  //sys	SyncFileRange(fd int, off int64, n int64, flags int) (err error)
    41  //sys	Truncate(path string, length int64) (err error)
    42  //sys	accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
    43  //sys	accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
    44  //sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
    45  //sys	connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
    46  //sysnb	getgroups(n int, list *_Gid_t) (nn int, err error)
    47  //sysnb	setgroups(n int, list *_Gid_t) (err error)
    48  //sys	getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
    49  //sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
    50  //sysnb	socket(domain int, typ int, proto int) (fd int, err error)
    51  //sysnb	socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
    52  //sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
    53  //sysnb	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
    54  //sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
    55  //sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
    56  //sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
    57  //sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
    58  //sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
    59  
    60  //go:noescape
    61  func gettimeofday(tv *Timeval) (err Errno)
    62  
    63  func Gettimeofday(tv *Timeval) (err error) {
    64  	errno := gettimeofday(tv)
    65  	if errno != 0 {
    66  		return errno
    67  	}
    68  	return nil
    69  }
    70  
    71  func Getpagesize() int { return 4096 }
    72  
    73  func Time(t *Time_t) (tt Time_t, err error) {
    74  	var tv Timeval
    75  	errno := gettimeofday(&tv)
    76  	if errno != 0 {
    77  		return 0, errno
    78  	}
    79  	if t != nil {
    80  		*t = Time_t(tv.Sec)
    81  	}
    82  	return Time_t(tv.Sec), nil
    83  }
    84  
    85  func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
    86  
    87  func NsecToTimespec(nsec int64) (ts Timespec) {
    88  	ts.Sec = nsec / 1e9
    89  	ts.Nsec = nsec % 1e9
    90  	return
    91  }
    92  
    93  func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 }
    94  
    95  func NsecToTimeval(nsec int64) (tv Timeval) {
    96  	nsec += 999 // round up to microsecond
    97  	tv.Sec = nsec / 1e9
    98  	tv.Usec = nsec % 1e9 / 1e3
    99  	return
   100  }
   101  
   102  //sysnb	pipe(p *[2]_C_int) (err error)
   103  
   104  func Pipe(p []int) (err error) {
   105  	if len(p) != 2 {
   106  		return EINVAL
   107  	}
   108  	var pp [2]_C_int
   109  	err = pipe(&pp)
   110  	p[0] = int(pp[0])
   111  	p[1] = int(pp[1])
   112  	return
   113  }
   114  
   115  //sysnb pipe2(p *[2]_C_int, flags int) (err error)
   116  
   117  func Pipe2(p []int, flags int) (err error) {
   118  	if len(p) != 2 {
   119  		return EINVAL
   120  	}
   121  	var pp [2]_C_int
   122  	err = pipe2(&pp, flags)
   123  	p[0] = int(pp[0])
   124  	p[1] = int(pp[1])
   125  	return
   126  }
   127  
   128  func (r *PtraceRegs) PC() uint64 { return r.Rip }
   129  
   130  func (r *PtraceRegs) SetPC(pc uint64) { r.Rip = pc }
   131  
   132  func (iov *Iovec) SetLen(length int) {
   133  	iov.Len = uint64(length)
   134  }
   135  
   136  func (msghdr *Msghdr) SetControllen(length int) {
   137  	msghdr.Controllen = uint64(length)
   138  }
   139  
   140  func (cmsg *Cmsghdr) SetLen(length int) {
   141  	cmsg.Len = uint64(length)
   142  }