toplevel/

	* configure.ac: Skip C if explicitly selected.
	* configure: Regenerate.

gcc/
	* configure.ac: Remove special gtfiles case for C.
	* configure: Regenerate.
	* Makefile.in: Remove C front-end hooks and build hooks that
	will be picked up from c/Make-lang.in now.
	Add tree-mudflap to C_COMMON_OBJS.
	* gengtype.c (files_rules): Adjust gt-files for c/c-decl.c.
	* config/vms/vms.c: Look for c-tree.h in c/.
	* doc/gty.texi: Remove reference to c-config-lang.in.
	* doc/sourcebuild.texi: Document the c/ subdirectory.

c/
	* Make-lang.in: New file, rules migrated from gcc/Makefile.in
	and add language Makefile hooks.
	* config-lang.in: New file.
	* c-config-lang.in: Moved from gcc/config-lang.in to here, and
	add the required "normal" config-lang.in rules.
	* c-lang.h: Moved from gcc/ to here.
	* c-tree.h: Likewise.
	* c-objc-common.c: Likewise.
	* c-objc-common.h: Likewise.
	* c-typeck.c: Likewise.
	* c-convert.c: Likewise.
	* c-lang.c: Likewise.
	* c-aux-info.c: Likewise.
	* c-errors.c: Likewise.
	* gccspec.c: Likewise.
	* c-decl.c: Likewise.  Include gt-c-c-decl.h, not gt-c-decl.h.
	* c-parser.c: Likewise.  Include gt-c-c-parser.h, not gt-c-parser.h.

c-family/
	* cppspec.c: Moved from gcc/ to here.

objc/
	* Make-ang.in: Adjust for move of C front-end files.
	* config-lang.in: Likewise.
	* objc-encoding.c: Look for cp-tree.h in cp/, and for c-tree.h
	and c-lang.h in c/.
	* objc-runtime-shared-support.c: Likewise.
	* objc-next-runtime-abi-01.c: Likewise.
	* objc-next-runtime-abi-02.c: Likewise.
	* objc-gnu-runtime-abi-01.c: Likewise.
	* objc-act.c: Likewise.
	* objc-lang.c: Likewise.

cp/
	* Make-lang.in: Remove tree-mudflap.o from CXX_AND_OBJCXX_OBJS.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@189080 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 214 insertions, 0 deletions

diff --git a/gcc/c/c-objc-common.c b/gcc/c/c-objc-common.c
new file mode 100644
index 00000000000..9351cd5a539
--- /dev/null
+++ b/gcc/c/c-objc-common.c
@@ -0,0 +1,214 @@
+/* Some code common to C and ObjC front ends.
+   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007,
+   2009, 2010 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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, or (at your option) any later
+version.
+
+GCC 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 GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tree.h"
+#include "c-tree.h"
+#include "intl.h"
+#include "c-family/c-pretty-print.h"
+#include "flags.h"
+#include "diagnostic.h"
+#include "tree-pretty-print.h"
+#include "langhooks.h"
+#include "c-objc-common.h"
+
+static bool c_tree_printer (pretty_printer *, text_info *, const char *,
+			    int, bool, bool, bool);
+
+bool
+c_missing_noreturn_ok_p (tree decl)
+{
+  /* A missing noreturn is not ok for freestanding implementations and
+     ok for the `main' function in hosted implementations.  */
+  return flag_hosted && MAIN_NAME_P (DECL_ASSEMBLER_NAME (decl));
+}
+
+/* Called from check_global_declarations.  */
+
+bool
+c_warn_unused_global_decl (const_tree decl)
+{
+  if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl))
+    return false;
+  if (DECL_IN_SYSTEM_HEADER (decl))
+    return false;
+
+  return true;
+}
+
+/* Initialization common to C and Objective-C front ends.  */
+bool
+c_objc_common_init (void)
+{
+  c_init_decl_processing ();
+
+  if (c_common_init () == false)
+    return false;
+
+  /* These were not defined in the Objective-C front end, but I'm
+     putting them here anyway.  The diagnostic format decoder might
+     want an enhanced ObjC implementation.  */
+  diagnostic_format_decoder (global_dc) = &c_tree_printer;
+
+  return true;
+}
+
+/* Called during diagnostic message formatting process to print a
+   source-level entity onto BUFFER.  The meaning of the format specifiers
+   is as follows:
+   %D: a general decl,
+   %E: an identifier or expression,
+   %F: a function declaration,
+   %T: a type.
+   %V: a list of type qualifiers from a tree.
+   %v: an explicit list of type qualifiers
+   %#v: an explicit list of type qualifiers of a function type.
+
+   Please notice when called, the `%' part was already skipped by the
+   diagnostic machinery.  */
+static bool
+c_tree_printer (pretty_printer *pp, text_info *text, const char *spec,
+		int precision, bool wide, bool set_locus, bool hash)
+{
+  tree t = NULL_TREE;
+  tree name;
+  c_pretty_printer *cpp = (c_pretty_printer *) pp;
+  pp->padding = pp_none;
+
+  if (precision != 0 || wide)
+    return false;
+
+  if (*spec == 'K')
+    {
+      percent_K_format (text);
+      return true;
+    }
+
+  if (*spec != 'v')
+    {
+      t = va_arg (*text->args_ptr, tree);
+      if (set_locus && text->locus)
+	*text->locus = DECL_SOURCE_LOCATION (t);
+    }
+
+  switch (*spec)
+    {
+    case 'D':
+      if (DECL_DEBUG_EXPR_IS_FROM (t) && DECL_DEBUG_EXPR (t))
+	{
+	  t = DECL_DEBUG_EXPR (t);
+	  if (!DECL_P (t))
+	    {
+	      pp_c_expression (cpp, t);
+	      return true;
+	    }
+	}
+      /* FALLTHRU */
+
+    case 'F':
+      if (DECL_NAME (t))
+	{
+	  pp_identifier (cpp, lang_hooks.decl_printable_name (t, 2));
+	  return true;
+	}
+      break;
+
+    case 'T':
+      gcc_assert (TYPE_P (t));
+      name = TYPE_NAME (t);
+
+      if (name && TREE_CODE (name) == TYPE_DECL)
+	{
+	  if (DECL_NAME (name))
+	    pp_identifier (cpp, lang_hooks.decl_printable_name (name, 2));
+	  else
+	    pp_type_id (cpp, t);
+	  return true;
+	}
+      else
+	{
+	  pp_type_id (cpp, t);
+	  return true;
+	}
+      break;
+
+    case 'E':
+      if (TREE_CODE (t) == IDENTIFIER_NODE)
+	pp_identifier (cpp, IDENTIFIER_POINTER (t));
+      else
+	pp_expression (cpp, t);
+      return true;
+
+    case 'V':
+      pp_c_type_qualifier_list (cpp, t);
+      return true;
+
+    case 'v':
+      pp_c_cv_qualifiers (cpp, va_arg (*text->args_ptr, int), hash);
+      return true;
+
+    default:
+      return false;
+    }
+
+  pp_string (cpp, _("({anonymous})"));
+  return true;
+}
+
+/* In C and ObjC, all decls have "C" linkage.  */
+bool
+has_c_linkage (const_tree decl ATTRIBUTE_UNUSED)
+{
+  return true;
+}
+
+void
+c_initialize_diagnostics (diagnostic_context *context)
+{
+  pretty_printer *base;
+  c_pretty_printer *pp;
+
+  c_common_initialize_diagnostics (context);
+
+  base = context->printer;
+  pp = XNEW (c_pretty_printer);
+  memcpy (pp_base (pp), base, sizeof (pretty_printer));
+  pp_c_pretty_printer_init (pp);
+  context->printer = (pretty_printer *) pp;
+
+  /* It is safe to free this object because it was previously XNEW()'d.  */
+  XDELETE (base);
+}
+
+int
+c_types_compatible_p (tree x, tree y)
+{
+  return comptypes (TYPE_MAIN_VARIANT (x), TYPE_MAIN_VARIANT (y));
+}
+
+/* Determine if the type is a vla type for the backend.  */
+
+bool
+c_vla_unspec_p (tree x, tree fn ATTRIBUTE_UNUSED)
+{
+  return c_vla_type_p (x);
+}