bfd/

2005-04-04  H.J. Lu  <hongjiu.lu@intel.com>

	* elf.c (bfd_elf_set_group_contents): Ignore linker created
	group section.
	(assign_section_numbers): Accept link_info. Check SHT_GROUP
	sections for relocatable files only. Remove the linker created
	group sections.
	(_bfd_elf_compute_section_file_positions): Pass link_info to
	assign_section_numbers.

	* elfxx-ia64.c (elfNN_ia64_object_p): New.
	(elf_backend_object_p): Defined.

gas/

2005-04-04  H.J. Lu  <hongjiu.lu@intel.com>

	* config/tc-ia64.c (start_unwind_section): Undo the change
	of 2004-08-18.
	(generate_unwind_image, dot_endp): Likewise.

3 files changed, 136 insertions, 9 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 39282d0..928d1dd 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -2,6 +2,14 @@
 
 	* elf.c (bfd_elf_set_group_contents): Ignore linker created
 	group section. 
+	(assign_section_numbers): Accept link_info. Check SHT_GROUP
+	sections for relocatable files only. Remove the linker created
+	group sections.
+	(_bfd_elf_compute_section_file_positions): Pass link_info to
+	assign_section_numbers.
+
+	* elfxx-ia64.c (elfNN_ia64_object_p): New.
+	(elf_backend_object_p): Defined.
 
 2005-04-04  H.J. Lu  <hongjiu.lu@intel.com>
 
diff --git a/bfd/elf.c b/bfd/elf.c
index f1c5fdb..4c10096 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -2728,7 +2728,7 @@ bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg)
    in here too, while we're at it.  */
 
 static bfd_boolean
-assign_section_numbers (bfd *abfd)
+assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info)
 {
   struct elf_obj_tdata *t = elf_tdata (abfd);
   asection *sec;
@@ -2741,16 +2741,35 @@ assign_section_numbers (bfd *abfd)
 
   _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd));
 
-  /* Put SHT_GROUP sections first.  */
-  for (sec = abfd->sections; sec; sec = sec->next)
+  /* SHT_GROUP sections are in relocatable files only.  */
+  if (link_info == NULL || link_info->relocatable)
     {
-      d = elf_section_data (sec);
+      asection **secp;
 
-      if (d->this_hdr.sh_type == SHT_GROUP)
+      /* Put SHT_GROUP sections first.  */
+      secp = &abfd->sections;
+      while (*secp)
 	{
-	  if (section_number == SHN_LORESERVE)
-	    section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
-	  d->this_idx = section_number++;
+	  d = elf_section_data (*secp);
+
+	  if (d->this_hdr.sh_type == SHT_GROUP)
+	    { 
+	      if ((*secp)->flags & SEC_LINKER_CREATED)
+		{
+		  /* Remove the linker created SHT_GROUP sections.  */
+		  bfd_section_list_remove (abfd, secp);
+		  abfd->section_count--;
+		  continue;
+		}
+	      else 
+		{
+		  if (section_number == SHN_LORESERVE)
+		    section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
+		  d->this_idx = section_number++;
+		}
+	    }
+
+	  secp = &(*secp)->next;
 	}
     }
 
@@ -3277,7 +3296,7 @@ _bfd_elf_compute_section_file_positions (bfd *abfd,
   if (failed)
     return FALSE;
 
-  if (!assign_section_numbers (abfd))
+  if (!assign_section_numbers (abfd, link_info))
     return FALSE;
 
   /* The backend linker builds symbol table information itself.  */
diff --git a/bfd/elfxx-ia64.c b/bfd/elfxx-ia64.c
index b19b172..01e4d9f 100644
--- a/bfd/elfxx-ia64.c
+++ b/bfd/elfxx-ia64.c
@@ -4886,6 +4886,103 @@ static struct bfd_elf_special_section const elfNN_ia64_special_sections[]=
 };
 
 static bfd_boolean
+elfNN_ia64_object_p (bfd *abfd)
+{
+  asection *sec;
+  asection **tail;
+  asection *group, *unwi, *unw;
+  flagword flags;
+  const char *name;
+  char *unwi_name, *unw_name;
+  bfd_size_type amt;
+
+  if (abfd->flags & DYNAMIC)
+    return TRUE;
+
+  /* Flags for fake group section.  */
+  flags = (SEC_LINKER_CREATED | SEC_GROUP | SEC_LINK_ONCE
+	   | SEC_EXCLUDE);
+
+  /* We add a fake section group for each .gnu.linkonce.t.* section,
+     which isn't in a section group, and its unwind sections.  */
+  for (sec = abfd->sections; sec != NULL; sec = sec->next)
+    {
+      if (elf_sec_group (sec) == NULL
+	  && ((sec->flags & (SEC_LINK_ONCE | SEC_CODE | SEC_GROUP))
+	      == (SEC_LINK_ONCE | SEC_CODE))
+	  && strncmp (sec->name, ".gnu.linkonce.t.", 16) == 0)
+	{
+	  name = sec->name + 16;
+
+	  amt = strlen (name) + sizeof (".gnu.linkonce.ia64unwi.");
+	  unwi_name = bfd_alloc (abfd, amt);
+	  if (!unwi_name)
+	    return FALSE;
+
+	  strcpy (stpcpy (unwi_name, ".gnu.linkonce.ia64unwi."), name);
+	  unwi = bfd_get_section_by_name (abfd, unwi_name);
+
+	  amt = strlen (name) + sizeof (".gnu.linkonce.ia64unw.");
+	  unw_name = bfd_alloc (abfd, amt);
+	  if (!unw_name)
+	    return FALSE;
+
+	  strcpy (stpcpy (unw_name, ".gnu.linkonce.ia64unw."), name);
+	  unw = bfd_get_section_by_name (abfd, unw_name);
+
+	  tail = abfd->section_tail;
+
+	  /* We need to create a fake group section for it and its
+	     unwind sections.  */
+	  group = bfd_make_section_anyway (abfd, name);
+	  if (group == NULL
+	      || ! bfd_set_section_flags (abfd, group, flags))
+	    return FALSE;
+
+	  /* Move the fake group section to the beginning.  */
+	  BFD_ASSERT (*tail == group);
+	  bfd_section_list_remove (abfd, tail);
+	  bfd_section_list_insert (abfd, &abfd->sections, group);
+
+	  elf_next_in_group (group) = sec;
+
+	  elf_group_name (sec) = name;
+	  elf_next_in_group (sec) = sec;
+	  elf_sec_group (sec) = group;
+
+	  if (unwi)
+	    {
+	      elf_group_name (unwi) = name;
+	      elf_next_in_group (unwi) = sec;
+	      elf_next_in_group (sec) = unwi;
+	      elf_sec_group (unwi) = group;
+	    }
+
+	   if (unw)
+	     {
+	       elf_group_name (unw) = name;
+	       if (unwi)
+		 {
+		   elf_next_in_group (unw) = elf_next_in_group (unwi);
+		   elf_next_in_group (unwi) = unw;
+		 }
+	       else
+		 {
+		   elf_next_in_group (unw) = sec;
+		   elf_next_in_group (sec) = unw;
+		 }
+	       elf_sec_group (unw) = group;
+	     }
+
+	   /* Fake SHT_GROUP section header.  */
+	  elf_section_data (group)->this_hdr.bfd_section = group;
+	  elf_section_data (group)->this_hdr.sh_type = SHT_GROUP;
+	}
+    }
+  return TRUE;
+}
+
+static bfd_boolean
 elfNN_ia64_hpux_vec (const bfd_target *vec)
 {
   extern const bfd_target bfd_elfNN_ia64_hpux_big_vec;
@@ -4968,6 +5065,9 @@ elfNN_hpux_backend_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
 #define bfd_elfNN_bfd_relax_section \
 	elfNN_ia64_relax_section
 
+#define elf_backend_object_p \
+	elfNN_ia64_object_p
+
 /* Stuff for the BFD linker: */
 #define bfd_elfNN_bfd_link_hash_table_create \
 	elfNN_ia64_hash_table_create