1 files changed, 57 insertions, 14 deletions

diff --git a/src/pkg/syscall/syscall_linux_arm.go b/src/pkg/syscall/syscall_linux_arm.go
index 06052f409..1fc7a7b18 100644
--- a/src/pkg/syscall/syscall_linux_arm.go
+++ b/src/pkg/syscall/syscall_linux_arm.go
@@ -4,14 +4,7 @@
 
 package syscall
 
-// These seem not to be defined in our gcc's ARM headers
-// and are thus missing from zerrors_linux_arm.go.
-const (
-	WSTOPPED     = 0x7f
-	O_CLOEXEC    = 0
-	EPOLLRDHUP   = EPOLLHUP
-	EPOLLONESHOT = 0x40000000
-)
+import "unsafe"
 
 func Getpagesize() int { return 4096 }
 
@@ -30,6 +23,35 @@ func NsecToTimeval(nsec int64) (tv Timeval) {
 	return
 }
 
+// Pread and Pwrite are special: they insert padding before the int64.
+// (Ftruncate and truncate are not; go figure.)
+
+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
+}
+
+// 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)
@@ -41,19 +63,22 @@ func NsecToTimeval(nsec int64) (tv Timeval) {
 //sys	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)
+//sys	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	Fstatfs(fd int, buf *Statfs_t) (errno int)
+//sys	Fstat(fd int, stat *Stat_t) (errno int) = SYS_FSTAT64
+//sys	Fstatfs(fd int, buf *Statfs_t) (errno int) = SYS_FSTATFS64
+//sys	Ftruncate(fd int, length int64) (errno int) = SYS_FTRUNCATE64
 //sys	Getegid() (egid int)
 //sys	Geteuid() (euid int)
 //sys	Getgid() (gid int)
 //sys	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	Seek(fd int, offset int64, whence int) (off int64, errno int) = SYS_LSEEK
+//sys	Lstat(path string, stat *Stat_t) (errno int) = SYS_LSTAT64
 //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)
@@ -63,10 +88,28 @@ func NsecToTimeval(nsec int64) (tv Timeval) {
 //sys	Setresuid(ruid int, euid int, suid int) (errno int)
 //sys	Setreuid(ruid int, euid int) (errno int)
 //sys	Shutdown(fd int, how int) (errno int)
-//sys	Stat(path string, stat *Stat_t) (errno int)
-//sys	Statfs(path string, buf *Statfs_t) (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
+//sys	Truncate(path string, length int64) (errno int) = SYS_TRUNCATE64
+
+// Vsyscalls on amd64.
+//sys	Gettimeofday(tv *Timeval) (errno int)
+//sys	Time(t *Time_t) (tt Time_t, errno int)
 
 // 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)
+}