syscall_linux_mipsx.go

     1  // Copyright 2016 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 linux && (mips || mipsle)
     6  // +build linux
     7  // +build mips mipsle
     8  
     9  package unix
    10  
    11  import (
    12  	"syscall"
    13  	"unsafe"
    14  )
    15  
    16  func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
    17  
    18  //sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
    19  //sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
    20  //sys	Fchown(fd int, uid int, gid int) (err error)
    21  //sys	Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64
    22  //sysnb	Getegid() (egid int)
    23  //sysnb	Geteuid() (euid int)
    24  //sysnb	Getgid() (gid int)
    25  //sysnb	Getuid() (uid int)
    26  //sys	Lchown(path string, uid int, gid int) (err error)
    27  //sys	Listen(s int, n int) (err error)
    28  //sys	Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
    29  //sys	Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
    30  //sys	Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
    31  //sys	Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT
    32  //sys	sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64
    33  //sys	setfsgid(gid int) (prev int, err error)
    34  //sys	setfsuid(uid int) (prev int, err error)
    35  //sysnb	Setregid(rgid int, egid int) (err error)
    36  //sysnb	Setresgid(rgid int, egid int, sgid int) (err error)
    37  //sysnb	Setresuid(ruid int, euid int, suid int) (err error)
    38  //sysnb	Setreuid(ruid int, euid int) (err error)
    39  //sys	Shutdown(fd int, how int) (err error)
    40  //sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)
    41  //sys	SyncFileRange(fd int, off int64, n int64, flags int) (err error)
    42  //sys	Truncate(path string, length int64) (err error) = SYS_TRUNCATE64
    43  //sys	Ustat(dev int, ubuf *Ustat_t) (err error)
    44  //sys	accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
    45  //sys	accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
    46  //sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
    47  //sys	connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
    48  //sysnb	getgroups(n int, list *_Gid_t) (nn int, err error)
    49  //sysnb	setgroups(n int, list *_Gid_t) (err error)
    50  //sys	getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
    51  //sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
    52  //sysnb	socket(domain int, typ int, proto int) (fd int, err error)
    53  //sysnb	socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
    54  //sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
    55  //sysnb	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
    56  //sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
    57  //sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
    58  //sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
    59  //sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
    60  
    61  //sys	Ioperm(from int, num int, on int) (err error)
    62  //sys	Iopl(level int) (err error)
    63  
    64  //sys	futimesat(dirfd int, path string, times *[2]Timeval) (err error)
    65  //sysnb	Gettimeofday(tv *Timeval) (err error)
    66  //sysnb	Time(t *Time_t) (tt Time_t, err error)
    67  //sys	Utime(path string, buf *Utimbuf) (err error)
    68  //sys	utimes(path string, times *[2]Timeval) (err error)
    69  
    70  //sys	Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
    71  //sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
    72  //sys	Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
    73  //sys	Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
    74  
    75  //sys	Pause() (err error)
    76  
    77  func Fstatfs(fd int, buf *Statfs_t) (err error) {
    78  	_, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
    79  	if e != 0 {
    80  		err = errnoErr(e)
    81  	}
    82  	return
    83  }
    84  
    85  func Statfs(path string, buf *Statfs_t) (err error) {
    86  	p, err := BytePtrFromString(path)
    87  	if err != nil {
    88  		return err
    89  	}
    90  	_, _, e := Syscall(SYS_STATFS64, uintptr(unsafe.Pointer(p)), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
    91  	if e != 0 {
    92  		err = errnoErr(e)
    93  	}
    94  	return
    95  }
    96  
    97  func Seek(fd int, offset int64, whence int) (off int64, err error) {
    98  	_, _, e := Syscall6(SYS__LLSEEK, uintptr(fd), uintptr(offset>>32), uintptr(offset), uintptr(unsafe.Pointer(&off)), uintptr(whence), 0)
    99  	if e != 0 {
   100  		err = errnoErr(e)
   101  	}
   102  	return
   103  }
   104  
   105  func setTimespec(sec, nsec int64) Timespec {
   106  	return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
   107  }
   108  
   109  func setTimeval(sec, usec int64) Timeval {
   110  	return Timeval{Sec: int32(sec), Usec: int32(usec)}
   111  }
   112  
   113  //sys	mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error)
   114  
   115  func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) {
   116  	page := uintptr(offset / 4096)
   117  	if offset != int64(page)*4096 {
   118  		return 0, EINVAL
   119  	}
   120  	return mmap2(addr, length, prot, flags, fd, page)
   121  }
   122  
   123  const rlimInf32 = ^uint32(0)
   124  const rlimInf64 = ^uint64(0)
   125  
   126  type rlimit32 struct {
   127  	Cur uint32
   128  	Max uint32
   129  }
   130  
   131  //sysnb	getrlimit(resource int, rlim *rlimit32) (err error) = SYS_GETRLIMIT
   132  
   133  func Getrlimit(resource int, rlim *Rlimit) (err error) {
   134  	err = Prlimit(0, resource, nil, rlim)
   135  	if err != ENOSYS {
   136  		return err
   137  	}
   138  
   139  	rl := rlimit32{}
   140  	err = getrlimit(resource, &rl)
   141  	if err != nil {
   142  		return
   143  	}
   144  
   145  	if rl.Cur == rlimInf32 {
   146  		rlim.Cur = rlimInf64
   147  	} else {
   148  		rlim.Cur = uint64(rl.Cur)
   149  	}
   150  
   151  	if rl.Max == rlimInf32 {
   152  		rlim.Max = rlimInf64
   153  	} else {
   154  		rlim.Max = uint64(rl.Max)
   155  	}
   156  	return
   157  }
   158  
   159  //sysnb	setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
   160  
   161  func Setrlimit(resource int, rlim *Rlimit) (err error) {
   162  	err = Prlimit(0, resource, rlim, nil)
   163  	if err != ENOSYS {
   164  		return err
   165  	}
   166  
   167  	rl := rlimit32{}
   168  	if rlim.Cur == rlimInf64 {
   169  		rl.Cur = rlimInf32
   170  	} else if rlim.Cur < uint64(rlimInf32) {
   171  		rl.Cur = uint32(rlim.Cur)
   172  	} else {
   173  		return EINVAL
   174  	}
   175  	if rlim.Max == rlimInf64 {
   176  		rl.Max = rlimInf32
   177  	} else if rlim.Max < uint64(rlimInf32) {
   178  		rl.Max = uint32(rlim.Max)
   179  	} else {
   180  		return EINVAL
   181  	}
   182  
   183  	return setrlimit(resource, &rl)
   184  }
   185  
   186  func (r *PtraceRegs) PC() uint64 { return r.Epc }
   187  
   188  func (r *PtraceRegs) SetPC(pc uint64) { r.Epc = pc }
   189  
   190  func (iov *Iovec) SetLen(length int) {
   191  	iov.Len = uint32(length)
   192  }
   193  
   194  func (msghdr *Msghdr) SetControllen(length int) {
   195  	msghdr.Controllen = uint32(length)
   196  }
   197  
   198  func (msghdr *Msghdr) SetIovlen(length int) {
   199  	msghdr.Iovlen = uint32(length)
   200  }
   201  
   202  func (cmsg *Cmsghdr) SetLen(length int) {
   203  	cmsg.Len = uint32(length)
   204  }
   205  
   206  func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) {
   207  	rsa.Service_name_len = uint32(length)
   208  }
   209
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