Initial pass at Go language support.

	* NEWS: Mention Go.
	* Makefile.in (SFILES): Add go-exp.y, go-lang.c, go-typeprint.c,
	go-valprint.c.
	(COMMON_OBS): Add go-lang.o, go-val.print.o, go-typeprint.o.
	(YYFILES): Add go-exp.c.
	(YYOBJ): Add go-exp.o.
	(local-maintainer-clean): Delete go-exp.c.
	* defs.h (enum language): Add language_go.
	* dwarf2read.c: #include "go-lang.h".
	(fixup_go_packaging): New function.
	(process_full_comp_unit): Call it when processing Go CUs.
	(dwarf2_physname): Add Go support.
	(read_file_scope): Handle missing language spec for GNU Go.
	(set_cu_language): Handle DW_LANG_Go.
	* go-exp.y: New file.
	* go-lang.h: New file.
	* go-lang.c: New file.
	* go-typeprint.c: New file.
	* go-valprint.c: New file.
	* symtab.c: #include "go-lang.h".
	(symbol_set_language): Handle language_go.
	(symbol_find_demangled_name, symbol_set_names): Ditto.
	(symbol_natural_name, demangle_for_lookup, find_main_name): Ditto.

	testsuite/
	* configure.ac: Create gdb.go/Makefile.
	* configure: Regenerate.
	* gdb.base/default.exp: Add "go" to "set language" testing.
	* gdb.go/Makefile.in: New file.
	* gdb.go/basic-types.exp: New file.
	* gdb.go/chan.exp: New file.
	* gdb.go/chan.go: New file.
	* gdb.go/handcall.exp: New file.
	* gdb.go/handcall.go: New file.
	* gdb.go/hello.exp: New file.
	* gdb.go/hello.go: New file.
	* gdb.go/integers.exp: New file.
	* gdb.go/integers.go: New file.
	* gdb.go/methods.exp: New file.
	* gdb.go/methods.go: New file.
	* gdb.go/package.exp: New file.
	* gdb.go/package1.go: New file.
	* gdb.go/package2.go: New file.
	* gdb.go/print.exp: New file.
	* gdb.go/strings.exp: New file.
	* gdb.go/strings.go: New file.
	* gdb.go/types.exp: New file.
	* gdb.go/types.go: New file.
	* gdb.go/unsafe.exp: New file.
	* gdb.go/unsafe.go: New file.
	* lib/future.exp: Add Go support.
	(gdb_find_go, gdb_find_go_linker): New procs.
	(gdb_default_target_compile): Add Go support.
	* lib/gdb.exp (skip_go_tests): New proc.
	* lib/go.exp: New file.

	doc/
	* gdb.texinfo (Supported Languages): Add Go.
	(Go): New node.

1 files changed, 88 insertions, 0 deletions

diff --git a/gdb/go-lang.h b/gdb/go-lang.h
new file mode 100644
index 00000000000..67b5d93eff0
--- /dev/null
+++ b/gdb/go-lang.h
@@ -0,0 +1,88 @@
+/* Go language support definitions for GDB, the GNU debugger.
+
+   Copyright (C) 2012 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#if !defined (GO_LANG_H)
+#define GO_LANG_H 1
+
+#include "gdbtypes.h"
+#include "symtab.h"
+#include "value.h"
+
+struct builtin_go_type
+{
+  struct type *builtin_void;
+  struct type *builtin_char;
+  struct type *builtin_bool;
+  struct type *builtin_int;
+  struct type *builtin_uint;
+  struct type *builtin_uintptr;
+  struct type *builtin_int8;
+  struct type *builtin_int16;
+  struct type *builtin_int32;
+  struct type *builtin_int64;
+  struct type *builtin_uint8;
+  struct type *builtin_uint16;
+  struct type *builtin_uint32;
+  struct type *builtin_uint64;
+  struct type *builtin_float32;
+  struct type *builtin_float64;
+  struct type *builtin_complex64;
+  struct type *builtin_complex128;
+};
+
+enum go_type
+{
+  GO_TYPE_NONE, /* Not a Go object.  */
+  GO_TYPE_STRING
+};
+
+/* Defined in go-exp.y.  */
+
+extern int go_parse (void);
+
+extern void go_error (char *);
+
+/* Defined in go-lang.c.  */
+
+extern const char *go_main_name (void);
+
+extern enum go_type go_classify_struct_type (struct type *type);
+
+extern char *go_demangle (const char *mangled, int options);
+
+extern char *go_symbol_package_name (const struct symbol *sym);
+
+extern char *go_block_package_name (const struct block *block);
+
+extern const struct builtin_go_type *builtin_go_type (struct gdbarch *);
+
+/* Defined in go-typeprint.c.  */
+
+extern void go_print_type (struct type *type, const char *varstring,
+			   struct ui_file *stream, int show, int level);
+
+/* Defined in go-valprint.c.  */
+
+extern void go_val_print (struct type *type, const gdb_byte *valaddr,
+			  int embedded_offset, CORE_ADDR address,
+			  struct ui_file *stream, int recurse,
+			  const struct value *val,
+			  const struct value_print_options *options);
+
+#endif /* !defined (GO_LANG_H) */