Add Go frontend, libgo library, and Go testsuite.

gcc/:
	* gcc.c (default_compilers): Add entry for ".go".
	* common.opt: Add -static-libgo as a driver option.
	* doc/install.texi (Configuration): Mention libgo as an option for
	--enable-shared.  Mention go as an option for --enable-languages.
	* doc/invoke.texi (Overall Options): Mention .go as a file name
	suffix.  Mention go as a -x option.
	* doc/frontends.texi (G++ and GCC): Mention Go as a supported
	language.
	* doc/sourcebuild.texi (Top Level): Mention libgo.
	* doc/standards.texi (Standards): Add section on Go language.
	Move references for other languages into their own section.
	* doc/contrib.texi (Contributors): Mention that I contributed the
	Go frontend.
gcc/testsuite/:
	* lib/go.exp: New file.
	* lib/go-dg.exp: New file.
	* lib/go-torture.exp: New file.
	* lib/target-supports.exp (check_compile): Match // Go.

From-SVN: r167407

1 files changed, 22 insertions, 0 deletions

diff --git a/libgo/runtime/go-nanotime.c b/libgo/runtime/go-nanotime.c
new file mode 100644
index 0000000..8cd4230
--- /dev/null
+++ b/libgo/runtime/go-nanotime.c
@@ -0,0 +1,22 @@
+// 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.
+
+// Return time in nanoseconds.  This is only used for computing runtime.
+
+#include <sys/time.h>
+
+#include "go-assert.h"
+#include "runtime.h"
+
+int64
+runtime_nanotime (void)
+{
+  int i;
+  struct timeval tv;
+
+  i = gettimeofday (&tv, NULL);
+  __go_assert (i == 0);
+
+  return (int64) tv.tv_sec * 1000000000 + (int64) tv.tv_usec * 1000;
+}