bfd/

	* hash.c (bfd_hash_hash): Extract from..
	(bfd_hash_lookup): ..here.
	(bfd_hash_rename): New function.
	* section.c (bfd_rename_section): New function.
	* bfd-in.h (bfd_hash_rename): Declare.
	* bfd-in2.h: Regenerate.
	* elf.c (_bfd_elf_make_section_from_shdr): Rename input sections
	when compressing or decompressing.  Don't assert name match.
	* elf64-hppa.c (get_reloc_section): Don't assert name match.
	* elfxx-ia64.c (get_reloc_section): Likewise.
binutils/
	* objcopy.c (copy_main): No need to rename sections when compressing
	or decompressing.
binutils/testsuite/
	* binutils-all/objdump.W: Adjust expected result for debug section
	rename.

8 files changed, 120 insertions, 30 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 78b904a..bd33568 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,16 @@
+2010-11-08  Alan Modra  <amodra@gmail.com>
+
+	* hash.c (bfd_hash_hash): Extract from..
+	(bfd_hash_lookup): ..here.
+	(bfd_hash_rename): New function.
+	* section.c (bfd_rename_section): New function.
+	* bfd-in.h (bfd_hash_rename): Declare.
+	* bfd-in2.h: Regenerate.
+	* elf.c (_bfd_elf_make_section_from_shdr): Rename input sections
+	when compressing or decompressing.  Don't assert name match.
+	* elf64-hppa.c (get_reloc_section): Don't assert name match.
+	* elfxx-ia64.c (get_reloc_section): Likewise.
+
 2010-11-05  Joseph Myers  <joseph@codesourcery.com>
 
 	* elf32-tic6x.c (elf32_tic6x_obj_attrs_handle_unknown): New.
diff --git a/bfd/bfd-in.h b/bfd/bfd-in.h
index cfa5225..63fcdc9 100644
--- a/bfd/bfd-in.h
+++ b/bfd/bfd-in.h
@@ -404,6 +404,10 @@ extern struct bfd_hash_entry *bfd_hash_lookup
 extern struct bfd_hash_entry *bfd_hash_insert
   (struct bfd_hash_table *, const char *, unsigned long);
 
+/* Rename an entry in a hash table.  */
+extern void bfd_hash_rename
+  (struct bfd_hash_table *, const char *, struct bfd_hash_entry *);
+
 /* Replace an entry in a hash table.  */
 extern void bfd_hash_replace
   (struct bfd_hash_table *, struct bfd_hash_entry *old,
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index c6a54b5..f3e2b45 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -411,6 +411,10 @@ extern struct bfd_hash_entry *bfd_hash_lookup
 extern struct bfd_hash_entry *bfd_hash_insert
   (struct bfd_hash_table *, const char *, unsigned long);
 
+/* Rename an entry in a hash table.  */
+extern void bfd_hash_rename
+  (struct bfd_hash_table *, const char *, struct bfd_hash_entry *);
+
 /* Replace an entry in a hash table.  */
 extern void bfd_hash_replace
   (struct bfd_hash_table *, struct bfd_hash_entry *old,
@@ -1713,6 +1717,9 @@ asection *bfd_make_section (bfd *, const char *name);
 bfd_boolean bfd_set_section_flags
    (bfd *abfd, asection *sec, flagword flags);
 
+void bfd_rename_section
+   (bfd *abfd, asection *sec, const char *newname);
+
 void bfd_map_over_sections
    (bfd *abfd,
     void (*func) (bfd *abfd, asection *sect, void *obj),
diff --git a/bfd/elf.c b/bfd/elf.c
index 4f326a7..075a668 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -822,11 +822,7 @@ _bfd_elf_make_section_from_shdr (bfd *abfd,
   const struct elf_backend_data *bed;
 
   if (hdr->bfd_section != NULL)
-    {
-      BFD_ASSERT (strcmp (name,
-			  bfd_get_section_name (abfd, hdr->bfd_section)) == 0);
-      return TRUE;
-    }
+    return TRUE;
 
   newsect = bfd_make_section_anyway (abfd, name);
   if (newsect == NULL)
@@ -1016,6 +1012,7 @@ _bfd_elf_make_section_from_shdr (bfd *abfd,
 	  || (name[1] == 'z' && name[7] == '_')))
     {
       enum { nothing, compress, decompress } action = nothing;
+      char *new_name;
 
       if (bfd_is_section_compressed (abfd, newsect))
 	{
@@ -1030,6 +1027,7 @@ _bfd_elf_make_section_from_shdr (bfd *abfd,
 	    action = compress;
 	}
 
+      new_name = NULL;
       switch (action)
 	{
 	case nothing:
@@ -1042,6 +1040,17 @@ _bfd_elf_make_section_from_shdr (bfd *abfd,
 		 abfd, name);
 	      return FALSE;
 	    }
+	  if (name[1] != 'z')
+	    {
+	      unsigned int len = strlen (name);
+
+	      new_name = bfd_alloc (abfd, len + 2);
+	      if (new_name == NULL)
+		return FALSE;
+	      new_name[0] = '.';
+	      new_name[1] = 'z';
+	      memcpy (new_name + 2, name + 1, len);
+	    }
 	  break;
 	case decompress:
 	  if (!bfd_init_section_decompress_status (abfd, newsect))
@@ -1051,8 +1060,20 @@ _bfd_elf_make_section_from_shdr (bfd *abfd,
 		 abfd, name);
 	      return FALSE;
 	    }
+	  if (name[1] == 'z')
+	    {
+	      unsigned int len = strlen (name);
+
+	      new_name = bfd_alloc (abfd, len);
+	      if (new_name == NULL)
+		return FALSE;
+	      new_name[0] = '.';
+	      memcpy (new_name + 1, name + 2, len - 1);
+	    }
 	  break;
 	}
+      if (new_name != NULL)
+	bfd_rename_section (abfd, newsect, new_name);
     }
 
   return TRUE;
diff --git a/bfd/elf64-hppa.c b/bfd/elf64-hppa.c
index 11289b1..d8213a0 100644
--- a/bfd/elf64-hppa.c
+++ b/bfd/elf64-hppa.c
@@ -411,13 +411,6 @@ get_reloc_section (bfd *abfd,
   if (srel_name == NULL)
     return FALSE;
 
-  BFD_ASSERT ((CONST_STRNEQ (srel_name, ".rela")
-	       && strcmp (bfd_get_section_name (abfd, sec),
-			  srel_name + 5) == 0)
-	      || (CONST_STRNEQ (srel_name, ".rel")
-		  && strcmp (bfd_get_section_name (abfd, sec),
-			     srel_name + 4) == 0));
-
   dynobj = hppa_info->root.dynobj;
   if (!dynobj)
     hppa_info->root.dynobj = dynobj = abfd;
diff --git a/bfd/elfxx-ia64.c b/bfd/elfxx-ia64.c
index 0ef1a44..d42ad89 100644
--- a/bfd/elfxx-ia64.c
+++ b/bfd/elfxx-ia64.c
@@ -2602,13 +2602,6 @@ get_reloc_section (bfd *abfd,
   if (srel_name == NULL)
     return NULL;
 
-  BFD_ASSERT ((CONST_STRNEQ (srel_name, ".rela")
-	       && strcmp (bfd_get_section_name (abfd, sec),
-			  srel_name+5) == 0)
-	      || (CONST_STRNEQ (srel_name, ".rel")
-		  && strcmp (bfd_get_section_name (abfd, sec),
-			     srel_name+4) == 0));
-
   dynobj = ia64_info->root.dynobj;
   if (!dynobj)
     ia64_info->root.dynobj = dynobj = abfd;
diff --git a/bfd/hash.c b/bfd/hash.c
index fc05923..e2fa3a9 100644
--- a/bfd/hash.c
+++ b/bfd/hash.c
@@ -1,6 +1,6 @@
 /* hash.c -- hash table routines for BFD
    Copyright 1993, 1994, 1995, 1997, 1999, 2001, 2002, 2003, 2004, 2005,
-   2006, 2007, 2009 Free Software Foundation, Inc.
+   2006, 2007, 2009, 2010 Free Software Foundation, Inc.
    Written by Steve Chamberlain <sac@cygnus.com>
 
    This file is part of BFD, the Binary File Descriptor library.
@@ -412,20 +412,13 @@ bfd_hash_table_free (struct bfd_hash_table *table)
   table->memory = NULL;
 }
 
-/* Look up a string in a hash table.  */
-
-struct bfd_hash_entry *
-bfd_hash_lookup (struct bfd_hash_table *table,
-		 const char *string,
-		 bfd_boolean create,
-		 bfd_boolean copy)
+static inline unsigned long
+bfd_hash_hash (const char *string, unsigned int *lenp)
 {
   const unsigned char *s;
   unsigned long hash;
-  unsigned int c;
-  struct bfd_hash_entry *hashp;
   unsigned int len;
-  unsigned int _index;
+  unsigned int c;
 
   hash = 0;
   len = 0;
@@ -438,7 +431,25 @@ bfd_hash_lookup (struct bfd_hash_table *table,
   len = (s - (const unsigned char *) string) - 1;
   hash += len + (len << 17);
   hash ^= hash >> 2;
+  if (lenp != NULL)
+    *lenp = len;
+  return hash;
+}
+
+/* Look up a string in a hash table.  */
 
+struct bfd_hash_entry *
+bfd_hash_lookup (struct bfd_hash_table *table,
+		 const char *string,
+		 bfd_boolean create,
+		 bfd_boolean copy)
+{
+  unsigned long hash;
+  struct bfd_hash_entry *hashp;
+  unsigned int len;
+  unsigned int _index;
+
+  hash = bfd_hash_hash (string, &len);
   _index = hash % table->size;
   for (hashp = table->table[_index];
        hashp != NULL;
@@ -535,6 +546,31 @@ bfd_hash_insert (struct bfd_hash_table *table,
   return hashp;
 }
 
+/* Rename an entry in a hash table.  */
+
+void
+bfd_hash_rename (struct bfd_hash_table *table,
+		 const char *string,
+		 struct bfd_hash_entry *ent)
+{
+  unsigned int _index;
+  struct bfd_hash_entry **pph;
+
+  _index = ent->hash % table->size;
+  for (pph = &table->table[_index]; *pph != NULL; pph = &(*pph)->next)
+    if (*pph == ent)
+      break;
+  if (*pph == NULL)
+    abort ();
+
+  *pph = ent->next;
+  ent->string = string;
+  ent->hash = bfd_hash_hash (string, NULL);
+  _index = ent->hash % table->size;
+  ent->next = table->table[_index];
+  table->table[_index] = ent;
+}
+
 /* Replace an entry in a hash table.  */
 
 void
diff --git a/bfd/section.c b/bfd/section.c
index 51c2196..bff8adf 100644
--- a/bfd/section.c
+++ b/bfd/section.c
@@ -1215,6 +1215,29 @@ bfd_set_section_flags (bfd *abfd ATTRIBUTE_UNUSED,
 
 /*
 FUNCTION
+	bfd_rename_section
+
+SYNOPSIS
+	void bfd_rename_section
+	  (bfd *abfd, asection *sec, const char *newname);
+
+DESCRIPTION
+	Rename section @var{sec} in @var{abfd} to @var{newname}.
+*/
+
+void
+bfd_rename_section (bfd *abfd, sec_ptr sec, const char *newname)
+{
+  struct section_hash_entry *sh;
+
+  sh = (struct section_hash_entry *)
+    ((char *) sec - offsetof (struct section_hash_entry, section));
+  sh->section.name = newname;
+  bfd_hash_rename (&abfd->section_htab, newname, &sh->root);
+}
+
+/*
+FUNCTION
 	bfd_map_over_sections
 
 SYNOPSIS