diff options
Diffstat (limited to 'src/pkg/syscall/syscall_linux_arm.go')
-rw-r--r-- | src/pkg/syscall/syscall_linux_arm.go | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/src/pkg/syscall/syscall_linux_arm.go b/src/pkg/syscall/syscall_linux_arm.go new file mode 100644 index 000000000..8c03c765c --- /dev/null +++ b/src/pkg/syscall/syscall_linux_arm.go @@ -0,0 +1,138 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package syscall + +import "unsafe" + +func Getpagesize() int { return 4096 } + +func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } + +func NsecToTimespec(nsec int64) (ts Timespec) { + ts.Sec = int32(nsec / 1e9) + ts.Nsec = int32(nsec % 1e9) + return +} + +func NsecToTimeval(nsec int64) (tv Timeval) { + nsec += 999 // round up to microsecond + tv.Sec = int32(nsec / 1e9) + tv.Usec = int32(nsec % 1e9 / 1e3) + return +} + +// Pread and Pwrite are special: they insert padding before the int64. + +func Pread(fd int, p []byte, offset int64) (n int, errno int) { + var _p0 unsafe.Pointer + if len(p) > 0 { + _p0 = unsafe.Pointer(&p[0]) + } + r0, _, e1 := Syscall6(SYS_PREAD64, uintptr(fd), uintptr(_p0), uintptr(len(p)), 0, uintptr(offset), uintptr(offset>>32)) + n = int(r0) + errno = int(e1) + return +} + +func Pwrite(fd int, p []byte, offset int64) (n int, errno int) { + var _p0 unsafe.Pointer + if len(p) > 0 { + _p0 = unsafe.Pointer(&p[0]) + } + r0, _, e1 := Syscall6(SYS_PWRITE64, uintptr(fd), uintptr(_p0), uintptr(len(p)), 0, uintptr(offset), uintptr(offset>>32)) + n = int(r0) + errno = int(e1) + return +} + +func Ftruncate(fd int, length int64) (errno int) { + // ARM EABI requires 64-bit arguments should be put in a pair + // of registers from an even register number. + _, _, e1 := Syscall6(SYS_FTRUNCATE64, uintptr(fd), 0, uintptr(length), uintptr(length>>32), 0, 0) + errno = int(e1) + return +} + +func Truncate(path string, length int64) (errno int) { + _, _, e1 := Syscall6(SYS_TRUNCATE64, uintptr(unsafe.Pointer(StringBytePtr(path))), 0, uintptr(length), uintptr(length>>32), 0, 0) + errno = int(e1) + return +} + +// Seek is defined in assembly. + +func Seek(fd int, offset int64, whence int) (newoffset int64, errno int) + +//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, errno int) +//sys bind(s int, addr uintptr, addrlen _Socklen) (errno int) +//sys connect(s int, addr uintptr, addrlen _Socklen) (errno int) +//sysnb getgroups(n int, list *_Gid_t) (nn int, errno int) = SYS_GETGROUPS32 +//sysnb setgroups(n int, list *_Gid_t) (errno int) = SYS_SETGROUPS32 +//sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (errno int) +//sys setsockopt(s int, level int, name int, val uintptr, vallen uintptr) (errno int) +//sysnb socket(domain int, typ int, proto int) (fd int, errno int) +//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int) +//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int) +//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, errno int) +//sys sendto(s int, buf []byte, flags int, to uintptr, addrlen _Socklen) (errno int) +//sysnb socketpair(domain int, typ int, flags int, fd *[2]int) (errno int) +//sys recvmsg(s int, msg *Msghdr, flags int) (n int, errno int) +//sys sendmsg(s int, msg *Msghdr, flags int) (errno int) + +//sys Chown(path string, uid int, gid int) (errno int) +//sys Fchown(fd int, uid int, gid int) (errno int) +//sys Fstat(fd int, stat *Stat_t) (errno int) = SYS_FSTAT64 +//sys Fstatfs(fd int, buf *Statfs_t) (errno int) = SYS_FSTATFS64 +//sysnb Getegid() (egid int) +//sysnb Geteuid() (euid int) +//sysnb Getgid() (gid int) +//sysnb Getuid() (uid int) +//sys Lchown(path string, uid int, gid int) (errno int) +//sys Listen(s int, n int) (errno int) +//sys Lstat(path string, stat *Stat_t) (errno int) = SYS_LSTAT64 +//sys Sendfile(outfd int, infd int, offset *int64, count int) (written int, errno int) = SYS_SENDFILE64 +//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, errno int) = SYS__NEWSELECT +//sys Setfsgid(gid int) (errno int) +//sys Setfsuid(uid int) (errno int) +//sysnb Setgid(gid int) (errno int) +//sysnb Setregid(rgid int, egid int) (errno int) +//sysnb Setresgid(rgid int, egid int, sgid int) (errno int) +//sysnb Setresuid(ruid int, euid int, suid int) (errno int) +//sysnb Setreuid(ruid int, euid int) (errno int) +//sys Shutdown(fd int, how int) (errno int) +//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, errno int) +//sys Stat(path string, stat *Stat_t) (errno int) = SYS_STAT64 +//sys Statfs(path string, buf *Statfs_t) (errno int) = SYS_STATFS64 + +// Vsyscalls on amd64. +//sysnb Gettimeofday(tv *Timeval) (errno int) +//sysnb Time(t *Time_t) (tt Time_t, errno int) + +//sys mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, errno int) + +func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, errno int) { + page := uintptr(offset / 4096) + if offset != int64(page)*4096 { + return 0, EINVAL + } + return mmap2(addr, length, prot, flags, fd, page) +} + +// TODO(kaib): add support for tracing +func (r *PtraceRegs) PC() uint64 { return 0 } + +func (r *PtraceRegs) SetPC(pc uint64) {} + +func (iov *Iovec) SetLen(length int) { + iov.Len = uint32(length) +} + +func (msghdr *Msghdr) SetControllen(length int) { + msghdr.Controllen = uint32(length) +} + +func (cmsg *Cmsghdr) SetLen(length int) { + cmsg.Len = uint32(length) +} |