re PR target/48094 (ld: warning: section has unexpectedly large size errors in objc/obj-c++ lto)

gcc:

       PR target/48094
        * config/darwin.c (darwin_objc2_section): Note if ObjC Metadata is seen.
        (darwin_objc1_section): Likewise.
        (darwin_file_end): Emit Image Info section when required.

gcc/c-family:

       PR target/48094
        * c.opt (fgnu-runtime, fnext-runtime, fobjc-abi-version,
        fobjc-gc, freplace-objc-classes): Accept for LTO.

gcc/objc:

       PR target/48094
        * objc-next-runtime-abi-01.c (generate_objc_image_info): Remove.
        (objc_generate_v1_next_metadata): Remove generation of ImageInfo.
        * objc-next-runtime-abi-02.c (generate_v2_objc_image_info): Remove.
        (objc_generate_v2_next_metadata): Remove generation of ImageInfo.

From-SVN: r202593

3 files changed, 8 insertions, 61 deletions

diff --git a/gcc/objc/ChangeLog b/gcc/objc/ChangeLog
index 30b6d17..0cdd761 100644
--- a/gcc/objc/ChangeLog
+++ b/gcc/objc/ChangeLog
@@ -1,3 +1,11 @@
+2013-09-14  Iain Sandoe  <iain@codesourcery.com>
+
+	PR target/48094
+	* objc-next-runtime-abi-01.c (generate_objc_image_info): Remove.
+	(objc_generate_v1_next_metadata): Remove generation of ImageInfo.
+	* objc-next-runtime-abi-02.c (generate_v2_objc_image_info): Remove.
+	(objc_generate_v2_next_metadata): Remove generation of ImageInfo.
+
 2013-07-21   Ondřej Bílka  <neleai@seznam.cz>
 
 	* objc-act.c: Fix typos.
diff --git a/gcc/objc/objc-next-runtime-abi-01.c b/gcc/objc/objc-next-runtime-abi-01.c
index 27ba615..000256d 100644
--- a/gcc/objc/objc-next-runtime-abi-01.c
+++ b/gcc/objc/objc-next-runtime-abi-01.c
@@ -2332,36 +2332,6 @@ generate_classref_translation_entry (tree chain)
   return;
 }
 
-
-/* The Fix-and-Continue functionality available in Mac OS X 10.3 and
-   later requires that ObjC translation units participating in F&C be
-   specially marked.  The following routine accomplishes this.  */
-
-/* static int _OBJC_IMAGE_INFO[2] = { 0, 1 }; */
-
-static void
-generate_objc_image_info (void)
-{
-  tree decl;
-  int flags
-    = ((flag_replace_objc_classes && imp_count ? 1 : 0)
-       | (flag_objc_gc ? 2 : 0));
-  vec<constructor_elt, va_gc> *v = NULL;
-  tree array_type;
-
-  array_type  = build_sized_array_type (integer_type_node, 2);
-
-  decl = start_var_decl (array_type, "_OBJC_ImageInfo");
-
-  CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, integer_zero_node);
-  CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, build_int_cst (integer_type_node, flags));
-  /* The runtime wants this and refers to it in a manner hidden from the compiler.
-     So we must force the output.  */
-  DECL_PRESERVE_P (decl) = 1;
-  OBJCMETA (decl, objc_meta, meta_info);
-  finish_var_decl (decl, objc_build_constructor (TREE_TYPE (decl), v));
-}
-
 static void
 objc_generate_v1_next_metadata (void)
 {
@@ -2412,9 +2382,6 @@ objc_generate_v1_next_metadata (void)
   attr = build_tree_list (objc_meta, meta_modules);
   build_module_descriptor (vers, attr);
 
-  /* This conveys information on GC usage and zero-link.  */
-  generate_objc_image_info ();
-
   /* Dump the class references.  This forces the appropriate classes
      to be linked into the executable image, preserving unix archive
      semantics.  */
diff --git a/gcc/objc/objc-next-runtime-abi-02.c b/gcc/objc/objc-next-runtime-abi-02.c
index 4bb02c7..0960006 100644
--- a/gcc/objc/objc-next-runtime-abi-02.c
+++ b/gcc/objc/objc-next-runtime-abi-02.c
@@ -3331,31 +3331,6 @@ build_v2_ivar_offset_ref_table (void)
     finish_var_decl (ref->decl, ref->offset);
 }
 
-/* static int _OBJC_IMAGE_INFO[2] = { 0, 16 | flags }; */
-
-static void
-generate_v2_objc_image_info (void)
-{
-  tree decl, array_type;
-  vec<constructor_elt, va_gc> *v = NULL;
-  int flags =
-	((flag_replace_objc_classes && imp_count ? 1 : 0)
-	  | (flag_objc_gc ? 2 : 0));
-
-  flags |= 16;
-
-  array_type  = build_sized_array_type (integer_type_node, 2);
-
-  decl = start_var_decl (array_type, "_OBJC_ImageInfo");
-
-  CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, integer_zero_node);
-  CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, build_int_cst (integer_type_node, flags));
-  /* The Runtime wants this.  */
-  DECL_PRESERVE_P (decl) = 1;
-  OBJCMETA (decl, objc_meta, meta_info);
-  finish_var_decl (decl, objc_build_constructor (TREE_TYPE (decl), v));
-}
-
 static void
 objc_generate_v2_next_metadata (void)
 {
@@ -3407,9 +3382,6 @@ objc_generate_v2_next_metadata (void)
   build_v2_address_table (nonlazy_category_list, "_OBJC_NonLazyCategoryList$",
 			  meta_label_nonlazy_categorylist);
 
-  /* This conveys information on GC usage and zero-link.  */
-  generate_v2_objc_image_info ();
-
   /* Generate catch objects for eh, if any are needed.  */
   build_v2_eh_catch_objects ();