Update Go library to last weekly.

From-SVN: r180552

18 files changed, 72 insertions, 40 deletions

diff --git a/libgo/go/os/dir_plan9.go b/libgo/go/os/dir_plan9.go
index bbc2cb6..bf17005 100644
--- a/libgo/go/os/dir_plan9.go
+++ b/libgo/go/os/dir_plan9.go
@@ -295,6 +295,6 @@ func pstring(b []byte, s string) []byte {
 		panic(NewError("string too long"))
 	}
 	b = pbit16(b, uint16(len(s)))
-	b = append(b, []byte(s)...)
+	b = append(b, s...)
 	return b
 }
diff --git a/libgo/go/os/dir_unix.go b/libgo/go/os/dir_unix.go
index 7835ed5..5295933 100644
--- a/libgo/go/os/dir_unix.go
+++ b/libgo/go/os/dir_unix.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build darwin freebsd linux openbsd
+
 package os
 
 import (
diff --git a/libgo/go/os/env.go b/libgo/go/os/env.go
index 3772c09..4844fa3 100644
--- a/libgo/go/os/env.go
+++ b/libgo/go/os/env.go
@@ -16,9 +16,9 @@ func Expand(s string, mapping func(string) string) string {
 	i := 0
 	for j := 0; j < len(s); j++ {
 		if s[j] == '$' && j+1 < len(s) {
-			buf = append(buf, []byte(s[i:j])...)
+			buf = append(buf, s[i:j]...)
 			name, w := getShellName(s[j+1:])
-			buf = append(buf, []byte(mapping(name))...)
+			buf = append(buf, mapping(name)...)
 			j += w
 			i = j + 1
 		}
diff --git a/libgo/go/os/env_unix.go b/libgo/go/os/env_unix.go
index 9cc0b03..8dd84ae 100644
--- a/libgo/go/os/env_unix.go
+++ b/libgo/go/os/env_unix.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build darwin freebsd linux openbsd
+
 // Unix environment variables.
 
 package os
diff --git a/libgo/go/os/error_plan9.go b/libgo/go/os/error_plan9.go
index cacfc15..91ace6d 100644
--- a/libgo/go/os/error_plan9.go
+++ b/libgo/go/os/error_plan9.go
@@ -48,6 +48,7 @@ var (
 	EPERM   = Eperm
 	EISDIR  = syscall.EISDIR
 
+	EBADF        = NewError("bad file descriptor")
 	ENAMETOOLONG = NewError("file name too long")
 	ERANGE       = NewError("math result not representable")
 	EPIPE        = NewError("Broken Pipe")
diff --git a/libgo/go/os/error_posix.go b/libgo/go/os/error_posix.go
index d43f178..9dc258a 100644
--- a/libgo/go/os/error_posix.go
+++ b/libgo/go/os/error_posix.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build darwin freebsd linux openbsd windows
+
 package os
 
 import syscall "syscall"
diff --git a/libgo/go/os/exec_posix.go b/libgo/go/os/exec_posix.go
index f37bfab..035b156 100644
--- a/libgo/go/os/exec_posix.go
+++ b/libgo/go/os/exec_posix.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build darwin freebsd linux openbsd windows
+
 package os
 
 import (
diff --git a/libgo/go/os/exec_unix.go b/libgo/go/os/exec_unix.go
index 8a4b2e1..e1adb20 100644
--- a/libgo/go/os/exec_unix.go
+++ b/libgo/go/os/exec_unix.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build darwin freebsd linux openbsd
+
 package os
 
 import (
@@ -38,7 +40,8 @@ func (p *Process) Wait(options int) (w *Waitmsg, err Error) {
 	if e != 0 {
 		return nil, NewSyscallError("wait", e)
 	}
-	if options&WSTOPPED == 0 {
+	// With WNOHANG pid is 0 if child has not exited.
+	if pid1 != 0 && options&WSTOPPED == 0 {
 		p.done = true
 	}
 	w = new(Waitmsg)
diff --git a/libgo/go/os/file_posix.go b/libgo/go/os/file_posix.go
index 0791a0d..5269149 100644
--- a/libgo/go/os/file_posix.go
+++ b/libgo/go/os/file_posix.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build darwin freebsd linux openbsd windows
+
 package os
 
 import (
@@ -21,39 +23,6 @@ func epipecheck(file *File, e int) {
 	}
 }
 
-// Stat returns a FileInfo structure describing the named file and an error, if any.
-// If name names a valid symbolic link, the returned FileInfo describes
-// the file pointed at by the link and has fi.FollowedSymlink set to true.
-// If name names an invalid symbolic link, the returned FileInfo describes
-// the link itself and has fi.FollowedSymlink set to false.
-func Stat(name string) (fi *FileInfo, err Error) {
-	var lstat, stat syscall.Stat_t
-	e := syscall.Lstat(name, &lstat)
-	if iserror(e) {
-		return nil, &PathError{"stat", name, Errno(e)}
-	}
-	statp := &lstat
-	if lstat.Mode&syscall.S_IFMT == syscall.S_IFLNK {
-		e := syscall.Stat(name, &stat)
-		if !iserror(e) {
-			statp = &stat
-		}
-	}
-	return fileInfoFromStat(name, new(FileInfo), &lstat, statp), nil
-}
-
-// Lstat returns the FileInfo structure describing the named file and an
-// error, if any.  If the file is a symbolic link, the returned FileInfo
-// describes the symbolic link.  Lstat makes no attempt to follow the link.
-func Lstat(name string) (fi *FileInfo, err Error) {
-	var stat syscall.Stat_t
-	e := syscall.Lstat(name, &stat)
-	if iserror(e) {
-		return nil, &PathError{"lstat", name, Errno(e)}
-	}
-	return fileInfoFromStat(name, new(FileInfo), &stat, &stat), nil
-}
-
 // Remove removes the named file or directory.
 func Remove(name string) Error {
 	// System call interface forces us to know
@@ -79,7 +48,7 @@ func Remove(name string) Error {
 	// both errors will be ENOTDIR, so it's okay to
 	// use the error from unlink.
 	// For windows syscall.ENOTDIR is set
-	// to syscall.ERROR_DIRECTORY, hopefully it should
+	// to syscall.ERROR_PATH_NOT_FOUND, hopefully it should
 	// do the trick.
 	if e1 != syscall.ENOTDIR {
 		e = e1
diff --git a/libgo/go/os/file_unix.go b/libgo/go/os/file_unix.go
index 8243701..0ebaf23 100644
--- a/libgo/go/os/file_unix.go
+++ b/libgo/go/os/file_unix.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build darwin freebsd linux openbsd
+
 package os
 
 import (
@@ -100,6 +102,39 @@ func (file *File) Stat() (fi *FileInfo, err Error) {
 	return fileInfoFromStat(file.name, new(FileInfo), &stat, &stat), nil
 }
 
+// Stat returns a FileInfo structure describing the named file and an error, if any.
+// If name names a valid symbolic link, the returned FileInfo describes
+// the file pointed at by the link and has fi.FollowedSymlink set to true.
+// If name names an invalid symbolic link, the returned FileInfo describes
+// the link itself and has fi.FollowedSymlink set to false.
+func Stat(name string) (fi *FileInfo, err Error) {
+	var lstat, stat syscall.Stat_t
+	e := syscall.Lstat(name, &lstat)
+	if iserror(e) {
+		return nil, &PathError{"stat", name, Errno(e)}
+	}
+	statp := &lstat
+	if lstat.Mode&syscall.S_IFMT == syscall.S_IFLNK {
+		e := syscall.Stat(name, &stat)
+		if !iserror(e) {
+			statp = &stat
+		}
+	}
+	return fileInfoFromStat(name, new(FileInfo), &lstat, statp), nil
+}
+
+// Lstat returns the FileInfo structure describing the named file and an
+// error, if any.  If the file is a symbolic link, the returned FileInfo
+// describes the symbolic link.  Lstat makes no attempt to follow the link.
+func Lstat(name string) (fi *FileInfo, err Error) {
+	var stat syscall.Stat_t
+	e := syscall.Lstat(name, &stat)
+	if iserror(e) {
+		return nil, &PathError{"lstat", name, Errno(e)}
+	}
+	return fileInfoFromStat(name, new(FileInfo), &stat, &stat), nil
+}
+
 // Readdir reads the contents of the directory associated with file and
 // returns an array of up to n FileInfo structures, as would be returned
 // by Lstat, in directory order. Subsequent calls on the same file will yield
diff --git a/libgo/go/os/inotify/inotify_linux.go b/libgo/go/os/inotify/inotify_linux.go
index 99fa516..ee3c75f 100644
--- a/libgo/go/os/inotify/inotify_linux.go
+++ b/libgo/go/os/inotify/inotify_linux.go
@@ -131,7 +131,7 @@ func (w *Watcher) RemoveWatch(path string) os.Error {
 	if success == -1 {
 		return os.NewSyscallError("inotify_rm_watch", errno)
 	}
-	w.watches[path] = nil, false
+	delete(w.watches, path)
 	return nil
 }
 
diff --git a/libgo/go/os/os_test.go b/libgo/go/os/os_test.go
index 3f7d306..3277fc2 100644
--- a/libgo/go/os/os_test.go
+++ b/libgo/go/os/os_test.go
@@ -918,6 +918,12 @@ func TestHostname(t *testing.T) {
 	if syscall.OS == "windows" || syscall.OS == "plan9" {
 		return
 	}
+
+	// TODO(jsing): Fix nametomib() on OpenBSD
+	if syscall.OS == "openbsd" {
+		return
+	}
+
 	// Check internal Hostname() against the output of /bin/hostname.
 	// Allow that the internal Hostname returns a Fully Qualified Domain Name
 	// and the /bin/hostname only returns the first component
diff --git a/libgo/go/os/path.go b/libgo/go/os/path.go
index a8dfce3..b190c51 100644
--- a/libgo/go/os/path.go
+++ b/libgo/go/os/path.go
@@ -68,7 +68,7 @@ func RemoveAll(path string) Error {
 	// Otherwise, is this a directory we need to recurse into?
 	dir, serr := Lstat(path)
 	if serr != nil {
-		if serr, ok := serr.(*PathError); ok && serr.Error == ENOENT {
+		if serr, ok := serr.(*PathError); ok && (serr.Error == ENOENT || serr.Error == ENOTDIR) {
 			return nil
 		}
 		return serr
diff --git a/libgo/go/os/path_unix.go b/libgo/go/os/path_unix.go
index 0d327cd..33045b6 100644
--- a/libgo/go/os/path_unix.go
+++ b/libgo/go/os/path_unix.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build darwin freebsd linux openbsd
+
 package os
 
 const (
diff --git a/libgo/go/os/str.go b/libgo/go/os/str.go
index 8dc9e47..e3606b6 100644
--- a/libgo/go/os/str.go
+++ b/libgo/go/os/str.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build plan9
+
 package os
 
 func itoa(val int) string { // do it here rather than with fmt to avoid dependency
diff --git a/libgo/go/os/sys_bsd.go b/libgo/go/os/sys_bsd.go
index 188993b..b0d097a 100644
--- a/libgo/go/os/sys_bsd.go
+++ b/libgo/go/os/sys_bsd.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build darwin freebsd openbsd
+
 // os code shared between *BSD systems including OS X (Darwin)
 // and FreeBSD.
 
diff --git a/libgo/go/os/user/lookup_stubs.go b/libgo/go/os/user/lookup_stubs.go
index 2f08f70..2d2de98 100644
--- a/libgo/go/os/user/lookup_stubs.go
+++ b/libgo/go/os/user/lookup_stubs.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build openbsd plan9 windows
+
 package user
 
 import (
diff --git a/libgo/go/os/user/lookup_unix.go b/libgo/go/os/user/lookup_unix.go
index 18a9687..3336b52 100644
--- a/libgo/go/os/user/lookup_unix.go
+++ b/libgo/go/os/user/lookup_unix.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build darwin freebsd linux
+
 package user
 
 import (