pkg/sort compiling and some progress on syscall. mostly
re-enabling and massaging code.
R=rsc
APPROVED=rsc
DELTA=2496 (1880 added, 330 deleted, 286 changed)
OCL=33487
CL=33504
diff --git a/src/pkg/syscall/syscall_linux_arm.go b/src/pkg/syscall/syscall_linux_arm.go
new file mode 100644
index 0000000..dc64ae7
--- /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 TimevalToNsec(tv Timeval) int64 {
+ return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3;
+}
+
+func NsecToTimeval(nsec int64) (tv Timeval) {
+ nsec += 999; // round up to microsecond
+ tv.Sec = int32(nsec/1e9);
+ tv.Usec = int32(nsec%1e9 / 1e3);
+ return;
+}
+
+// 64-bit file system and 32-bit uid calls
+// (386 default is 32-bit file system and 16-bit uid).
+//sys Chown(path string, uid int, gid int) (errno int) = SYS_CHOWN32
+//sys Fchown(fd int, uid int, gid int) (errno int) = SYS_FCHOWN32
+//sys Fstat(fd int, stat *Stat_t) (errno int) = SYS_FSTAT64
+//sys Fstatfs(fd int, buf *Statfs_t) (errno int) = SYS_FSTATFS64
+//sys Getegid() (egid int) = SYS_GETEGID32
+//sys Geteuid() (euid int) = SYS_GETEUID32
+//sys Getgid() (gid int) = SYS_GETGID32
+//sys Getuid() (uid int) = SYS_GETUID32
+//sys Lchown(path string, uid int, gid int) (errno int) = SYS_LCHOWN32
+//sys Lstat(path string, stat *Stat_t) (errno int) = SYS_LSTAT64
+//sys Setfsgid(gid int) (errno int) = SYS_SETFSGID32
+//sys Setfsuid(uid int) (errno int) = SYS_SETFSUID32
+//sys Setgid(gid int) (errno int) = SYS_SETGID32
+//sys Setregid(rgid int, egid int) (errno int) = SYS_SETREGID32
+//sys Setresgid(rgid int, egid int, sgid int) (errno int) = SYS_SETRESGID32
+//sys Setresuid(ruid int, euid int, suid int) (errno int) = SYS_SETRESUID32
+//sys Setreuid(ruid int, euid int) (errno int) = SYS_SETREUID32
+//sys Stat(path string, stat *Stat_t) (errno int) = SYS_STAT64
+//sys Statfs(path string, buf *Statfs_t) (errno int) = SYS_STATFS64
+//sys getgroups(n int, list *_Gid_t) (nn int, errno int) = SYS_GETGROUPS32
+//sys setgroups(n int, list *_Gid_t) (errno int) = SYS_SETGROUPS32
+
+//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, errno int) = SYS__NEWSELECT
+
+// Underlying system call writes to newoffset via pointer.
+// Implemented in assembly to avoid allocation.
+func Seek(fd int, offset int64, whence int) (newoffset int64, errno int)
+
+// On x86 Linux, all the socket calls go through an extra indirection,
+// I think because the 5-register system call interface can't handle
+// the 6-argument calls like sendto and recvfrom. Instead the
+// arguments to the underlying system call are the number below
+// and a pointer to an array of uintptr. We hide the pointer in the
+// socketcall assembly to avoid allocation on every system call.
+
+const (
+ // see linux/net.h
+ _SOCKET = 1;
+ _BIND = 2;
+ _CONNECT = 3;
+ _LISTEN = 4;
+ _ACCEPT = 5;
+ _GETSOCKNAME = 6;
+ _GETPEERNAME = 7;
+ _SOCKETPAIR = 8;
+ _SEND = 9;
+ _RECV = 10;
+ _SENDTO = 11;
+ _RECVFROM = 12;
+ _SHUTDOWN = 13;
+ _SETSOCKOPT = 14;
+ _GETSOCKOPT = 15;
+ _SENDMSG = 16;
+ _RECVMSG = 17;
+)
+
+func socketcall(call int, a0, a1, a2, a3, a4, a5 uintptr) (n int, errno int)
+
+func accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, errno int) {
+ fd, errno = socketcall(_ACCEPT, uintptr(s), uintptr(unsafe.Pointer(rsa)), uintptr(unsafe.Pointer(addrlen)), 0, 0, 0);
+ return;
+}
+
+func getsockname(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int) {
+ var _ int;
+ _, errno = socketcall(_GETSOCKNAME, uintptr(s), uintptr(unsafe.Pointer(rsa)), uintptr(unsafe.Pointer(addrlen)), 0, 0, 0);
+ return;
+}
+
+func getpeername(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int) {
+ var _ int;
+ _, errno = socketcall(_GETPEERNAME, uintptr(s), uintptr(unsafe.Pointer(rsa)), uintptr(unsafe.Pointer(addrlen)), 0, 0, 0);
+ return;
+}
+
+func bind(s int, addr uintptr, addrlen _Socklen) (errno int) {
+ var _ int;
+ _, errno = socketcall(_BIND, uintptr(s), uintptr(addr), uintptr(addrlen), 0, 0, 0);
+ return;
+}
+
+func connect(s int, addr uintptr, addrlen _Socklen) (errno int) {
+ var _ int;
+ _, errno = socketcall(_CONNECT, uintptr(s), uintptr(addr), uintptr(addrlen), 0, 0, 0);
+ return;
+}
+
+func socket(domain int, typ int, proto int) (fd int, errno int) {
+ fd, errno = socketcall(_SOCKET, uintptr(domain), uintptr(typ), uintptr(proto), 0, 0, 0);
+ return;
+}
+
+func setsockopt(s int, level int, name int, val uintptr, vallen int) (errno int) {
+ var _ int;
+ _, errno = socketcall(_SETSOCKOPT, uintptr(s), uintptr(level), uintptr(name), uintptr(val), uintptr(vallen), 0);
+ return;
+}
+
+func Listen(s int, n int) (errno int) {
+ var _ int;
+ _, errno = socketcall(_LISTEN, uintptr(s), uintptr(n), 0, 0, 0, 0);
+ return;
+}
