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syscall: add support for GOARCH=mips{,le}
Change-Id: I39a46b2a9412981db1780b688a86fec791f68b6f Reviewed-on: https://go-review.googlesource.com/31488 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
Vladimir Stefanovic
Brad Fitzpatrick
parent
ad366fdbe4
commit
58e3bf11fb
15 changed files with 9464 additions and 6 deletions
222
src/syscall/syscall_linux_mipsx.go
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222
src/syscall/syscall_linux_mipsx.go
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@ -0,0 +1,222 @@
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// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build linux
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// +build mips mipsle
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package syscall
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import "unsafe"
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const (
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_SYS_dup = SYS_DUP2
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_SYS_getdents = SYS_GETDENTS64
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_SYS_setgroups = SYS_SETGROUPS
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)
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func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno)
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//sys Dup2(oldfd int, newfd int) (err error)
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//sys Fchown(fd int, uid int, gid int) (err error)
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//sys Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64
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//sysnb Getegid() (egid int)
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//sysnb Geteuid() (euid int)
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//sysnb Getgid() (gid int)
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//sysnb Getuid() (uid int)
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//sys Lchown(path string, uid int, gid int) (err error)
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//sys Listen(s int, n int) (err error)
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//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
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//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
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//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT
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//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64
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//sys Setfsgid(gid int) (err error)
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//sys Setfsuid(uid int) (err error)
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//sysnb Setregid(rgid int, egid int) (err error)
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//sysnb Setresgid(rgid int, egid int, sgid int) (err error)
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//sysnb Setresuid(ruid int, euid int, suid int) (err error)
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//sysnb Setreuid(ruid int, euid int) (err error)
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//sys Shutdown(fd int, how int) (err error)
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//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
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//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error)
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//sys Truncate(path string, length int64) (err error) = SYS_TRUNCATE64
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//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
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//sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
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//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
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//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
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//sysnb getgroups(n int, list *_Gid_t) (nn int, err error)
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//sysnb setgroups(n int, list *_Gid_t) (err error)
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//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
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//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
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//sysnb socket(domain int, typ int, proto int) (fd int, err error)
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//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
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//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
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//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
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//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
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//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
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//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
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//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
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//sysnb InotifyInit() (fd int, err error)
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//sys Ioperm(from int, num int, on int) (err error)
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//sys Iopl(level int) (err error)
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//sysnb Gettimeofday(tv *Timeval) (err error)
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//sysnb Time(t *Time_t) (tt Time_t, err error)
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//sys Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
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//sys Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
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//sys Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
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func Fstatfs(fd int, buf *Statfs_t) (err error) {
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_, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
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use(unsafe.Pointer(buf))
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if e != 0 {
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err = errnoErr(e)
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}
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return
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}
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func Statfs(path string, buf *Statfs_t) (err error) {
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p, err := BytePtrFromString(path)
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if err != nil {
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return err
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}
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_, _, e := Syscall(SYS_STATFS64, uintptr(unsafe.Pointer(p)), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
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use(unsafe.Pointer(p))
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if e != 0 {
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err = errnoErr(e)
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}
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return
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}
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func Seek(fd int, offset int64, whence int) (off int64, err error) {
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_, _, e := Syscall6(SYS__LLSEEK, uintptr(fd), uintptr(offset>>32), uintptr(offset), uintptr(unsafe.Pointer(&off)), uintptr(whence), 0)
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if e != 0 {
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err = errnoErr(e)
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}
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return
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}
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func setTimespec(sec, nsec int64) Timespec {
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return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
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}
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func setTimeval(sec, usec int64) Timeval {
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return Timeval{Sec: int32(sec), Usec: int32(usec)}
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}
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//sysnb pipe2(p *[2]_C_int, flags int) (err error)
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func Pipe2(p []int, flags int) (err error) {
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if len(p) != 2 {
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return EINVAL
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}
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var pp [2]_C_int
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err = pipe2(&pp, flags)
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p[0] = int(pp[0])
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p[1] = int(pp[1])
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return
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}
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func Pipe(p []int) (err error) {
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if len(p) != 2 {
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return EINVAL
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}
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var pp [2]_C_int
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err = pipe2(&pp, 0)
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p[0] = int(pp[0])
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p[1] = int(pp[1])
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return
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}
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//sys mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error)
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func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) {
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page := uintptr(offset / 4096)
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if offset != int64(page)*4096 {
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return 0, EINVAL
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}
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return mmap2(addr, length, prot, flags, fd, page)
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}
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const rlimInf32 = ^uint32(0)
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const rlimInf64 = ^uint64(0)
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type rlimit32 struct {
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Cur uint32
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Max uint32
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}
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//sysnb getrlimit(resource int, rlim *rlimit32) (err error) = SYS_GETRLIMIT
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func Getrlimit(resource int, rlim *Rlimit) (err error) {
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err = prlimit(0, resource, nil, rlim)
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if err != ENOSYS {
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return err
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}
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rl := rlimit32{}
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err = getrlimit(resource, &rl)
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if err != nil {
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return
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}
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if rl.Cur == rlimInf32 {
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rlim.Cur = rlimInf64
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} else {
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rlim.Cur = uint64(rl.Cur)
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}
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if rl.Max == rlimInf32 {
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rlim.Max = rlimInf64
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} else {
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rlim.Max = uint64(rl.Max)
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}
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return
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}
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//sysnb setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
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func Setrlimit(resource int, rlim *Rlimit) (err error) {
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err = prlimit(0, resource, rlim, nil)
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if err != ENOSYS {
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return err
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}
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rl := rlimit32{}
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if rlim.Cur == rlimInf64 {
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rl.Cur = rlimInf32
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} else if rlim.Cur < uint64(rlimInf32) {
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rl.Cur = uint32(rlim.Cur)
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} else {
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return EINVAL
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}
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if rlim.Max == rlimInf64 {
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rl.Max = rlimInf32
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} else if rlim.Max < uint64(rlimInf32) {
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rl.Max = uint32(rlim.Max)
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} else {
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return EINVAL
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}
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return setrlimit(resource, &rl)
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}
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func (r *PtraceRegs) PC() uint64 { return uint64(r.Regs[64]) }
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func (r *PtraceRegs) SetPC(pc uint64) { r.Regs[64] = uint32(pc) }
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func (iov *Iovec) SetLen(length int) {
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iov.Len = uint32(length)
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}
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func (msghdr *Msghdr) SetControllen(length int) {
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msghdr.Controllen = uint32(length)
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}
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func (cmsg *Cmsghdr) SetLen(length int) {
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cmsg.Len = uint32(length)
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}
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