Source file src/syscall/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	// +build linux
     6	// +build mips mipsle
     7	
     8	package syscall
     9	
    10	import "unsafe"
    11	
    12	const (
    13		_SYS_dup       = SYS_DUP2
    14		_SYS_setgroups = SYS_SETGROUPS
    15	)
    16	
    17	func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno)
    18	
    19	//sys	Dup2(oldfd int, newfd int) (err error)
    20	//sys	Fchown(fd int, uid int, gid int) (err error)
    21	//sys	fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
    22	//sys	Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64
    23	//sysnb	Getegid() (egid int)
    24	//sysnb	Geteuid() (euid int)
    25	//sysnb	Getgid() (gid int)
    26	//sysnb	Getuid() (uid int)
    27	//sys	Lchown(path string, uid int, gid int) (err error)
    28	//sys	Listen(s int, n int) (err error)
    29	//sys	Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
    30	//sys	Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
    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) (err error)
    34	//sys	Setfsuid(uid 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	
    39	//sysnb	Setreuid(ruid int, euid int) (err error)
    40	//sys	Shutdown(fd int, how int) (err error)
    41	//sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)
    42	
    43	//sys	SyncFileRange(fd int, off int64, n int64, flags int) (err error)
    44	//sys	Truncate(path string, length int64) (err error) = SYS_TRUNCATE64
    45	//sys	accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
    46	//sys	accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
    47	//sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
    48	//sys	connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
    49	//sysnb	getgroups(n int, list *_Gid_t) (nn int, err error)
    50	//sysnb	setgroups(n int, list *_Gid_t) (err error)
    51	//sys	getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
    52	//sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
    53	//sysnb	socket(domain int, typ int, proto int) (fd int, err error)
    54	//sysnb	socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
    55	//sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
    56	//sysnb	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
    57	//sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
    58	//sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
    59	//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
    60	//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
    61	
    62	//sysnb	InotifyInit() (fd int, err error)
    63	//sys	Ioperm(from int, num int, on int) (err error)
    64	//sys	Iopl(level int) (err error)
    65	
    66	//sysnb	Gettimeofday(tv *Timeval) (err error)
    67	//sysnb	Time(t *Time_t) (tt Time_t, err error)
    68	
    69	//sys	Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
    70	//sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
    71	//sys	Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
    72	//sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
    73	
    74	func Fstatfs(fd int, buf *Statfs_t) (err error) {
    75		_, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
    76		if e != 0 {
    77			err = errnoErr(e)
    78		}
    79		return
    80	}
    81	
    82	func Statfs(path string, buf *Statfs_t) (err error) {
    83		p, err := BytePtrFromString(path)
    84		if err != nil {
    85			return err
    86		}
    87		_, _, e := Syscall(SYS_STATFS64, uintptr(unsafe.Pointer(p)), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
    88		if e != 0 {
    89			err = errnoErr(e)
    90		}
    91		return
    92	}
    93	
    94	func Seek(fd int, offset int64, whence int) (off int64, err error) {
    95		_, _, e := Syscall6(SYS__LLSEEK, uintptr(fd), uintptr(offset>>32), uintptr(offset), uintptr(unsafe.Pointer(&off)), uintptr(whence), 0)
    96		if e != 0 {
    97			err = errnoErr(e)
    98		}
    99		return
   100	}
   101	
   102	func setTimespec(sec, nsec int64) Timespec {
   103		return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
   104	}
   105	
   106	func setTimeval(sec, usec int64) Timeval {
   107		return Timeval{Sec: int32(sec), Usec: int32(usec)}
   108	}
   109	
   110	//sysnb pipe2(p *[2]_C_int, flags int) (err error)
   111	
   112	func Pipe2(p []int, flags int) (err error) {
   113		if len(p) != 2 {
   114			return EINVAL
   115		}
   116		var pp [2]_C_int
   117		err = pipe2(&pp, flags)
   118		p[0] = int(pp[0])
   119		p[1] = int(pp[1])
   120		return
   121	}
   122	
   123	//sysnb pipe() (p1 int, p2 int, err error)
   124	
   125	func Pipe(p []int) (err error) {
   126		if len(p) != 2 {
   127			return EINVAL
   128		}
   129		p[0], p[1], err = pipe()
   130		return
   131	}
   132	
   133	//sys	mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error)
   134	
   135	func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) {
   136		page := uintptr(offset / 4096)
   137		if offset != int64(page)*4096 {
   138			return 0, EINVAL
   139		}
   140		return mmap2(addr, length, prot, flags, fd, page)
   141	}
   142	
   143	const rlimInf32 = ^uint32(0)
   144	const rlimInf64 = ^uint64(0)
   145	
   146	type rlimit32 struct {
   147		Cur uint32
   148		Max uint32
   149	}
   150	
   151	//sysnb getrlimit(resource int, rlim *rlimit32) (err error) = SYS_GETRLIMIT
   152	
   153	func Getrlimit(resource int, rlim *Rlimit) (err error) {
   154		err = prlimit(0, resource, nil, rlim)
   155		if err != ENOSYS {
   156			return err
   157		}
   158	
   159		rl := rlimit32{}
   160		err = getrlimit(resource, &rl)
   161		if err != nil {
   162			return
   163		}
   164	
   165		if rl.Cur == rlimInf32 {
   166			rlim.Cur = rlimInf64
   167		} else {
   168			rlim.Cur = uint64(rl.Cur)
   169		}
   170	
   171		if rl.Max == rlimInf32 {
   172			rlim.Max = rlimInf64
   173		} else {
   174			rlim.Max = uint64(rl.Max)
   175		}
   176		return
   177	}
   178	
   179	//sysnb setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
   180	
   181	func Setrlimit(resource int, rlim *Rlimit) (err error) {
   182		err = prlimit(0, resource, rlim, nil)
   183		if err != ENOSYS {
   184			return err
   185		}
   186	
   187		rl := rlimit32{}
   188		if rlim.Cur == rlimInf64 {
   189			rl.Cur = rlimInf32
   190		} else if rlim.Cur < uint64(rlimInf32) {
   191			rl.Cur = uint32(rlim.Cur)
   192		} else {
   193			return EINVAL
   194		}
   195		if rlim.Max == rlimInf64 {
   196			rl.Max = rlimInf32
   197		} else if rlim.Max < uint64(rlimInf32) {
   198			rl.Max = uint32(rlim.Max)
   199		} else {
   200			return EINVAL
   201		}
   202	
   203		return setrlimit(resource, &rl)
   204	}
   205	
   206	func (r *PtraceRegs) PC() uint64 { return uint64(r.Regs[64]) }
   207	
   208	func (r *PtraceRegs) SetPC(pc uint64) { r.Regs[64] = uint32(pc) }
   209	
   210	func (iov *Iovec) SetLen(length int) {
   211		iov.Len = uint32(length)
   212	}
   213	
   214	func (msghdr *Msghdr) SetControllen(length int) {
   215		msghdr.Controllen = uint32(length)
   216	}
   217	
   218	func (cmsg *Cmsghdr) SetLen(length int) {
   219		cmsg.Len = uint32(length)
   220	}
   221	
   222	func rawVforkSyscall(trap, a1 uintptr) (r1 uintptr, err Errno) {
   223		panic("not implemented")
   224	}
   225	

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