From 16526e42c26b00e2424a0d0b5a73c04f010f7a9e Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Thu, 28 Apr 2016 06:38:41 -0700
Subject: Add _bfd_elf_record_start_stop

---
 bfd/elf-bfd.h         |  3 +++
 bfd/elflink.c         | 21 +++++++++++++++++++++
 ld/emultempl/elf32.em |  2 ++
 3 files changed, 26 insertions(+)

diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index 6c05b55..480f1cb 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -2339,6 +2339,9 @@ extern bfd_boolean bfd_elf_gc_common_final_link
 extern asection *_bfd_elf_is_start_stop
   (const struct bfd_link_info *, struct elf_link_hash_entry *);
 
+extern void _bfd_elf_record_start_stop
+  (const struct bfd_link_info *);
+
 extern bfd_boolean bfd_elf_reloc_symbol_deleted_p
   (bfd_vma, void *);
 
diff --git a/bfd/elflink.c b/bfd/elflink.c
index b6ff6b6..6c2ddb4 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -13791,3 +13791,24 @@ elf_append_rel (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
   BFD_ASSERT (loc + bed->s->sizeof_rel <= s->contents + s->size);
   bed->s->swap_reloc_out (abfd, rel, loc);
 }
+
+/* For undefined __start_<name> and __stop_<name> symbols, set
+   def_regular to 1.  This is called via elf_link_hash_traverse.  */
+
+static bfd_boolean
+elf_link_record_start_stop (struct elf_link_hash_entry *h, void *data)
+{
+  const struct bfd_link_info * info
+    = (const struct bfd_link_info *) data;
+  if (_bfd_elf_is_start_stop (info, h) != NULL)
+    h->def_regular = 1;
+  return TRUE;
+}
+
+void
+_bfd_elf_record_start_stop (const struct bfd_link_info * info)
+{
+  elf_link_hash_traverse (elf_hash_table (info),
+			  elf_link_record_start_stop,
+			  (void *) info);
+}
diff --git a/ld/emultempl/elf32.em b/ld/emultempl/elf32.em
index cc2f056..ad48ce4 100644
--- a/ld/emultempl/elf32.em
+++ b/ld/emultempl/elf32.em
@@ -1445,6 +1445,8 @@ gld${EMULATION_NAME}_record_link_assignments (lang_phase_type phase)
 	 let the ELF backend know about them in case the variables are
 	 referred to by dynamic objects.  */
       lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
+
+      _bfd_elf_record_start_stop (&link_info);
     }
 }
 
-- 
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