d: Make TARGET_D_MINFO_SECTION hooks in elfos.h the language default.

Removes the last of all TARGET_D_* macro definitions in common target
headers.  Now everything is either defined in the D language front-end,
or D-specific target headers.

gcc/ChangeLog:

	* config/darwin-d.cc (TARGET_D_MINFO_START_NAME): Rename to ...
	(TARGET_D_MINFO_SECTION_START): ...this.
	(TARGET_D_MINFO_END_NAME): Rename to ...
	(TARGET_D_MINFO_SECTION_END): ... this.
	* config/elfos.h (TARGET_D_MINFO_SECTION): Remove.
	(TARGET_D_MINFO_START_NAME): Remove.
	(TARGET_D_MINFO_END_NAME): Remove.
	* config/i386/cygwin-d.cc (TARGET_D_MINFO_SECTION): Remove.
	(TARGET_D_MINFO_START_NAME): Remove.
	(TARGET_D_MINFO_END_NAME): Remove.
	* config/i386/winnt-d.cc (TARGET_D_MINFO_SECTION): Remove.
	(TARGET_D_MINFO_START_NAME): Remove.
	(TARGET_D_MINFO_END_NAME): Remove.
	* doc/tm.texi: Regenerate.
	* doc/tm.texi.in (TARGET_D_MINFO_START_NAME): Rename to ...
	(TARGET_D_MINFO_SECTION_START): ...this.
	(TARGET_D_MINFO_END_NAME): Rename to ...
	(TARGET_D_MINFO_SECTION_END): ...this.

gcc/d/ChangeLog:

	* d-target.def (d_minfo_section): Expand documentation of hook.
	Default initialize to "minfo".
	(d_minfo_start_name): Rename to ...
	(d_minfo_section_start): ... this.  Default initialize to
	"__start_minfo".
	(d_minfo_end_name): Rename to ...
	(d_minfo_section_end): ... this. Default initialize to "__stop_minfo".
	* modules.cc (register_moduleinfo): Use new targetdm hook names.

8 files changed, 31 insertions, 52 deletions

diff --git a/gcc/config/darwin-d.cc b/gcc/config/darwin-d.cc
index 2ceebc4..9730494 100644
--- a/gcc/config/darwin-d.cc
+++ b/gcc/config/darwin-d.cc
@@ -67,10 +67,10 @@ darwin_d_register_target_info (void)
 #undef TARGET_D_MINFO_SECTION
 #define TARGET_D_MINFO_SECTION "__DATA,__minfodata"
 
-#undef TARGET_D_MINFO_START_NAME
-#define TARGET_D_MINFO_START_NAME "*section$start$__DATA$__minfodata"
+#undef TARGET_D_MINFO_SECTION_START
+#define TARGET_D_MINFO_SECTION_START "*section$start$__DATA$__minfodata"
 
-#undef TARGET_D_MINFO_END_NAME
-#define TARGET_D_MINFO_END_NAME "*section$end$__DATA$__minfodata"
+#undef TARGET_D_MINFO_SECTION_END
+#define TARGET_D_MINFO_SECTION_END "*section$end$__DATA$__minfodata"
 
 struct gcc_targetdm targetdm = TARGETDM_INITIALIZER;
diff --git a/gcc/config/elfos.h b/gcc/config/elfos.h
index acb3762..f8b3be4 100644
--- a/gcc/config/elfos.h
+++ b/gcc/config/elfos.h
@@ -482,9 +482,3 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 
 #undef TARGET_LIBC_HAS_FUNCTION
 #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
-
-/* ELF support needed only by D front-end.  */
-
-#define TARGET_D_MINFO_SECTION "minfo"
-#define TARGET_D_MINFO_START_NAME "__start_minfo"
-#define TARGET_D_MINFO_END_NAME "__stop_minfo"
diff --git a/gcc/config/i386/cygwin-d.cc b/gcc/config/i386/cygwin-d.cc
index 619930b..6d70d49 100644
--- a/gcc/config/i386/cygwin-d.cc
+++ b/gcc/config/i386/cygwin-d.cc
@@ -64,17 +64,6 @@ cygwin_d_register_target_info (void)
 #undef TARGET_D_REGISTER_OS_TARGET_INFO
 #define TARGET_D_REGISTER_OS_TARGET_INFO cygwin_d_register_target_info
 
-/* Define TARGET_D_MINFO_SECTION for Cygwin targets.  */
-
-#undef TARGET_D_MINFO_SECTION
-#define TARGET_D_MINFO_SECTION "minfo"
-
-#undef TARGET_D_MINFO_START_NAME
-#define TARGET_D_MINFO_START_NAME "__start_minfo"
-
-#undef TARGET_D_MINFO_END_NAME
-#define TARGET_D_MINFO_END_NAME "__stop_minfo"
-
 /* Define TARGET_D_TEMPLATES_ALWAYS_COMDAT for Cygwin targets.  */
 
 #undef TARGET_D_TEMPLATES_ALWAYS_COMDAT
diff --git a/gcc/config/i386/winnt-d.cc b/gcc/config/i386/winnt-d.cc
index a1fd3fa..843c713 100644
--- a/gcc/config/i386/winnt-d.cc
+++ b/gcc/config/i386/winnt-d.cc
@@ -69,17 +69,6 @@ winnt_d_register_target_info (void)
 #undef TARGET_D_REGISTER_OS_TARGET_INFO
 #define TARGET_D_REGISTER_OS_TARGET_INFO winnt_d_register_target_info
 
-/* Define TARGET_D_MINFO_SECTION for Windows targets.  */
-
-#undef TARGET_D_MINFO_SECTION
-#define TARGET_D_MINFO_SECTION "minfo"
-
-#undef TARGET_D_MINFO_START_NAME
-#define TARGET_D_MINFO_START_NAME "__start_minfo"
-
-#undef TARGET_D_MINFO_END_NAME
-#define TARGET_D_MINFO_END_NAME "__stop_minfo"
-
 /* Define TARGET_D_TEMPLATES_ALWAYS_COMDAT for Windows targets.  */
 
 #undef TARGET_D_TEMPLATES_ALWAYS_COMDAT
diff --git a/gcc/d/d-target.def b/gcc/d/d-target.def
index 7805942..7d999d0 100644
--- a/gcc/d/d-target.def
+++ b/gcc/d/d-target.def
@@ -70,26 +70,29 @@ the target operating system.",
 DEFHOOKPOD
 (d_minfo_section,
  "Contains the name of the section in which module info references should be\n\
-placed.  This section is expected to be bracketed by two symbols to indicate\n\
-the start and end address of the section, so that the runtime library can\n\
-collect all modules for each loaded shared library and executable.  The\n\
-default value of @code{NULL} disables the use of sections altogether.",
- const char *, NULL)
+placed.  By default, the compiler puts all module info symbols in the\n\
+@code{\"minfo\"} section.  Define this macro to override the string if a\n\
+different section name should be used.  This section is expected to be\n\
+bracketed by two symbols @code{TARGET_D_MINFO_SECTION_START} and \n\
+@code{TARGET_D_MINFO_SECTION_END} to indicate the start and end address of\n\
+the section, so that the runtime library can collect all modules for each\n\
+loaded shared library and executable.  Setting the value to @code{NULL}\n\
+disables the use of sections for storing module info altogether.",
+ const char *, "minfo")
 
 DEFHOOKPOD
-(d_minfo_start_name,
+(d_minfo_section_start,
  "If @code{TARGET_D_MINFO_SECTION} is defined, then this must also be defined\n\
 as the name of the symbol indicating the start address of the module info\n\
 section",
- const char *, NULL)
+ const char *, "__start_minfo")
 
-/* The name of the ModuleInfo section.  */
 DEFHOOKPOD
-(d_minfo_end_name,
+(d_minfo_section_end,
  "If @code{TARGET_D_MINFO_SECTION} is defined, then this must also be defined\n\
 as the name of the symbol indicating the end address of the module info\n\
 section",
- const char *, NULL)
+ const char *, "__stop_minfo")
 
 /* The "stdcall" convention is really supported on 32-bit x86/Windows only.
    The following hook is a helper to determine whether to apply the attribute
diff --git a/gcc/d/modules.cc b/gcc/d/modules.cc
index 0aac8fe..4f91853 100644
--- a/gcc/d/modules.cc
+++ b/gcc/d/modules.cc
@@ -438,11 +438,11 @@ register_moduleinfo (Module *decl, tree minfo)
   if (!first_module)
     return;
 
-  start_minfo_node = build_dso_registry_var (targetdm.d_minfo_start_name,
+  start_minfo_node = build_dso_registry_var (targetdm.d_minfo_section_start,
 					     ptr_type_node);
   rest_of_decl_compilation (start_minfo_node, 1, 0);
 
-  stop_minfo_node = build_dso_registry_var (targetdm.d_minfo_end_name,
+  stop_minfo_node = build_dso_registry_var (targetdm.d_minfo_section_end,
 					    ptr_type_node);
   rest_of_decl_compilation (stop_minfo_node, 1, 0);
 
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 63c8a31..8572313 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -10850,19 +10850,23 @@ the target operating system.
 
 @deftypevr {D Target Hook} {const char *} TARGET_D_MINFO_SECTION
 Contains the name of the section in which module info references should be
-placed.  This section is expected to be bracketed by two symbols to indicate
-the start and end address of the section, so that the runtime library can
-collect all modules for each loaded shared library and executable.  The
-default value of @code{NULL} disables the use of sections altogether.
+placed.  By default, the compiler puts all module info symbols in the
+@code{"minfo"} section.  Define this macro to override the string if a
+different section name should be used.  This section is expected to be
+bracketed by two symbols @code{TARGET_D_MINFO_SECTION_START} and 
+@code{TARGET_D_MINFO_SECTION_END} to indicate the start and end address of
+the section, so that the runtime library can collect all modules for each
+loaded shared library and executable.  Setting the value to @code{NULL}
+disables the use of sections for storing module info altogether.
 @end deftypevr
 
-@deftypevr {D Target Hook} {const char *} TARGET_D_MINFO_START_NAME
+@deftypevr {D Target Hook} {const char *} TARGET_D_MINFO_SECTION_START
 If @code{TARGET_D_MINFO_SECTION} is defined, then this must also be defined
 as the name of the symbol indicating the start address of the module info
 section
 @end deftypevr
 
-@deftypevr {D Target Hook} {const char *} TARGET_D_MINFO_END_NAME
+@deftypevr {D Target Hook} {const char *} TARGET_D_MINFO_SECTION_END
 If @code{TARGET_D_MINFO_SECTION} is defined, then this must also be defined
 as the name of the symbol indicating the end address of the module info
 section
diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
index 501ddf1..986e8f0 100644
--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
@@ -7117,9 +7117,9 @@ floating-point support; they are not included in this mechanism.
 
 @hook TARGET_D_MINFO_SECTION
 
-@hook TARGET_D_MINFO_START_NAME
+@hook TARGET_D_MINFO_SECTION_START
 
-@hook TARGET_D_MINFO_END_NAME
+@hook TARGET_D_MINFO_SECTION_END
 
 @hook TARGET_D_HAS_STDCALL_CONVENTION