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, 10 insertions, 0 deletions

diff --git a/gcc/config.gcc b/gcc/config.gcc
index d40ad44d..811b8e1 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -183,6 +183,9 @@
 #
 #  gnu_ld		Set to yes or no depending on whether the target
 #			system normally uses GNU ld.
+#
+#  target_has_targetcm	Set to yes or no depending on whether the target
+#			has its own definition of targetcm.
 
 out_file=
 tmake_file=
@@ -200,6 +203,7 @@ extra_options=
 c_target_objs=
 cxx_target_objs=
 fortran_target_objs=
+target_has_targetcm=no
 tm_defines=
 xm_defines=
 # Set this to force installation and use of collect2.
@@ -478,6 +482,7 @@ case ${target} in
   c_target_objs="${c_target_objs} darwin-c.o"
   cxx_target_objs="${cxx_target_objs} darwin-c.o"
   fortran_target_objs="darwin-f.o"
+  target_has_targetcm=yes
   extra_objs="darwin.o"
   extra_gcc_objs="darwin-driver.o"
   default_use_cxa_atexit=yes
@@ -2661,6 +2666,11 @@ powerpc*-*-* | rs6000-*-*)
 	tm_file="${tm_file} rs6000/option-defaults.h"
 esac
 
+if [ "$target_has_targetcm" = "no" ]; then
+  c_target_objs="$c_target_objs default-c.o"
+  cxx_target_objs="$cxx_target_objs default-c.o"
+fi
+
 # Support for --with-cpu and related options (and a few unrelated options,
 # too).
 case ${with_cpu} in