tm.texi.in: Document C target hooks as separate from general target hooks.

	* doc/tm.texi.in: Document C target hooks as separate from general
	target hooks.
	* doc/tm.texi: Regenerate.
	* genhooks.c (struct hook_desc): Add docname field.
	(HOOK_VECTOR_1, DEFHOOKPOD, DEFHOOK, DEFHOOK_UNDOC).  Initialize
	docname field.
	(hook_array): Include c-target.def.
	(emit_documentation): Use docname field in output.
	(emit_init_macros): Take docname argument.  Only emit definitions
	for hooks matching docname.
	(main): Expect additional arguments in all cases.  Pass argument
	to emit_init_macros.
	* target.def: Move initial macro definitions and comments to
	target-hooks-macros.h.
	(gcc_targetcm): Move to c-family/c-target.def.
	* target.h (targetcm): Move declaration to c-family/c-target.h.
	* targhooks.c (default_handle_c_option): Move to
	c-family/c-opts.c.
	* targhooks.h (default_handle_c_option): Move declaration to
	c-family/c-common.h.
	* target-hooks-macros.h: New file.
	* config.gcc (target_has_targetcm): Define and use to add to
	c_target_objs and cxx_target_objs.
	* config/default-c.c: New file.
	* config/darwin-c.c: Include c-target.h and c-target-def.h instead
	of target.h and target-def.h.
	(TARGET_HANDLE_C_OPTION, targetcm): Define later in file.
	(darwin_objc_construct_string, darwin_cfstring_ref_p,
	darwin_check_cfstring_format_arg): Make static.
	(TARGET_OBJC_CONSTRUCT_STRING_OBJECT,
	TARGET_STRING_OBJECT_REF_TYPE_P,
	TARGET_CHECK_STRING_OBJECT_FORMAT_ARG): Define here.
	* config/darwin-protos.h (darwin_objc_construct_string,
	darwin_cfstring_ref_p, darwin_check_cfstring_format_arg): Don't
	declare.
	* config/darwin.h (TARGET_OBJC_CONSTRUCT_STRING_OBJECT,
	TARGET_STRING_OBJECT_REF_TYPE_P,
	TARGET_CHECK_STRING_OBJECT_FORMAT_ARG, TARGET_HAS_TARGETCM):
	Remove.
	* config/t-darwin (darwin-c.o): Update dependencies.
	* system.h (TARGET_HAS_TARGETCM): Poison.
	* Makefile.in (TARGET_H): Update.
	(TARGET_DEF, C_TARGET_DEF, C_TARGET_H, C_TARGET_DEF_H): Define.
	(c-family/c-format.o, c-family/c-opts.o): Update dependencies.
	(default-c.o): New target.
	(s-target-hooks-def-h): Pass "Target Hook" string to genhooks.
	(c-family/c-target-hooks-def.h, s-c-target-hooks-def-h): New
	targets.
	(s-tm-texi): Pass -d option to genhooks.  Also test timestamp on
	c-target.def.
	(build/genhooks.o): Update dependencies.

c-family:
	* c-target-def.h: New file.
	* c-target.def: New file.
	* c-target.h: New file.
	* c-common.c (targetcm): Don't define here.
	* c-common.h (default_handle_c_option): Declare.
	* c-format.c: Include c-target.h instead of target.h.
	* c-opts.c: Include c-target.h instead of target.h.  Explicitly
	include tm.h.
	(default_handle_c_option): Move from targhooks.c.

objc:
	* objc-act.c: Include c-target.h instead of target.h.
	* Make-lang.in (objc/objc-act.o): Update dependencies.

From-SVN: r172035

1 files changed, 34 insertions, 0 deletions

diff --git a/gcc/config/default-c.c b/gcc/config/default-c.c
new file mode 100644
index 0000000..7ca3d87
--- /dev/null
+++ b/gcc/config/default-c.c
@@ -0,0 +1,34 @@
+/* Default C-family target hooks initializer.
+   Copyright (C) 2011
+   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 "c-family/c-target.h"
+#include "c-family/c-target-def.h"
+
+/* Do not include tm.h or tm_p.h here; if it is useful for a target to
+   define some macros for the initializer in a header without defining
+   targetcm itself (for example, because of interactions with some
+   hooks depending on the target OS and others on the target
+   architecture), create a separate tm_c.h for only the relevant
+   definitions.  */
+
+struct gcc_targetcm targetcm = TARGETCM_INITIALIZER;