2006-04-25 H.J. Lu <hongjiu.lu@intel.com>

	PR binutils/2467
	* elf.c (_bfd_elf_close_and_cleanup): Check elf_tdata (abfd)
	is NULL first.

	* elf32-arm.c (elf32_arm_close_and_cleanup): Check if
	abfd->sections is NULL.
	(elf32_arm_bfd_free_cached_info): New.
	(bfd_elf32_bfd_free_cached_info): Defined.

	* elfxx-target.h (bfd_elfNN_bfd_free_cached_info): Default it
	to _bfd_free_cached_info.

	* libbfd-in.h (_bfd_free_cached_info): New.
	* libbfd: Regenerated.

	* opncls.c (_bfd_delete_bfd): Check if abfd->memory is NULL.
	(_bfd_free_cached_info): New.

6 files changed, 68 insertions, 5 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index c5baeb6..c134282 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,23 @@
+2006-04-25  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR binutils/2467
+	* elf.c (_bfd_elf_close_and_cleanup): Check elf_tdata (abfd)
+	is NULL first.
+
+	* elf32-arm.c (elf32_arm_close_and_cleanup): Check if
+	abfd->sections is NULL.
+	(elf32_arm_bfd_free_cached_info): New.
+	(bfd_elf32_bfd_free_cached_info): Defined.
+
+	* elfxx-target.h (bfd_elfNN_bfd_free_cached_info): Default it
+	to _bfd_free_cached_info.
+
+	* libbfd-in.h (_bfd_free_cached_info): New.
+	* libbfd: Regenerated.
+
+	* opncls.c (_bfd_delete_bfd): Check if abfd->memory is NULL.
+	(_bfd_free_cached_info): New.
+
 2006-04-21  Alan Modra  <amodra@bigpond.net.au>
 
 	* elf.c (assign_file_positions_except_relocs): Move code setting
diff --git a/bfd/elf.c b/bfd/elf.c
index 30e1efe..04eff22 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -7207,7 +7207,7 @@ _bfd_elf_close_and_cleanup (bfd *abfd)
 {
   if (bfd_get_format (abfd) == bfd_object)
     {
-      if (elf_shstrtab (abfd) != NULL)
+      if (elf_tdata (abfd) != NULL && elf_shstrtab (abfd) != NULL)
 	_bfd_elf_strtab_free (elf_shstrtab (abfd));
       _bfd_dwarf2_cleanup_debug_info (abfd);
     }
diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c
index ca33121..bd3c4e3 100644
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -7936,11 +7936,25 @@ unrecord_section_via_map_over_sections (bfd * abfd ATTRIBUTE_UNUSED,
 static bfd_boolean
 elf32_arm_close_and_cleanup (bfd * abfd)
 {
-  bfd_map_over_sections (abfd, unrecord_section_via_map_over_sections, NULL);
+  if (abfd->sections)
+    bfd_map_over_sections (abfd,
+			   unrecord_section_via_map_over_sections,
+			   NULL);
 
   return _bfd_elf_close_and_cleanup (abfd);
 }
 
+static bfd_boolean
+elf32_arm_bfd_free_cached_info (bfd * abfd)
+{
+  if (abfd->sections)
+    bfd_map_over_sections (abfd,
+			   unrecord_section_via_map_over_sections,
+			   NULL);
+
+  return _bfd_free_cached_info (abfd);
+}
+
 /* Display STT_ARM_TFUNC symbols as functions.  */
 
 static void
@@ -8100,6 +8114,7 @@ const struct elf_size_info elf32_arm_size_info = {
 #define bfd_elf32_new_section_hook		elf32_arm_new_section_hook
 #define bfd_elf32_bfd_is_target_special_symbol	elf32_arm_is_target_special_symbol
 #define bfd_elf32_close_and_cleanup             elf32_arm_close_and_cleanup
+#define bfd_elf32_bfd_free_cached_info          elf32_arm_bfd_free_cached_info
 #define bfd_elf32_bfd_final_link		elf32_arm_bfd_final_link
 
 #define elf_backend_get_symbol_type             elf32_arm_get_symbol_type
diff --git a/bfd/elfxx-target.h b/bfd/elfxx-target.h
index 503726d..14a693a 100644
--- a/bfd/elfxx-target.h
+++ b/bfd/elfxx-target.h
@@ -29,7 +29,9 @@
 #ifndef bfd_elfNN_close_and_cleanup
 #define	bfd_elfNN_close_and_cleanup _bfd_elf_close_and_cleanup
 #endif
-#define bfd_elfNN_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
+#ifndef bfd_elfNN_bfd_free_cached_info
+#define bfd_elfNN_bfd_free_cached_info _bfd_free_cached_info
+#endif
 #ifndef bfd_elfNN_get_section_contents
 #define bfd_elfNN_get_section_contents _bfd_generic_get_section_contents
 #endif
diff --git a/bfd/libbfd-in.h b/bfd/libbfd-in.h
index ee2484f..2248479 100644
--- a/bfd/libbfd-in.h
+++ b/bfd/libbfd-in.h
@@ -155,6 +155,8 @@ bfd * _bfd_new_bfd
   (void);
 void _bfd_delete_bfd
   (bfd *);
+bfd_boolean _bfd_free_cached_info
+  (bfd *);
 
 bfd_boolean bfd_false
   (bfd *ignore);
diff --git a/bfd/opncls.c b/bfd/opncls.c
index b02b137..7e62d06 100644
--- a/bfd/opncls.c
+++ b/bfd/opncls.c
@@ -115,11 +115,35 @@ _bfd_new_bfd_contained_in (bfd *obfd)
 void
 _bfd_delete_bfd (bfd *abfd)
 {
-  bfd_hash_table_free (&abfd->section_htab);
-  objalloc_free ((struct objalloc *) abfd->memory);
+  if (abfd->memory)
+    {
+      bfd_hash_table_free (&abfd->section_htab);
+      objalloc_free ((struct objalloc *) abfd->memory);
+    }
   free (abfd);
 }
 
+/* Free objalloc memory.  */
+
+bfd_boolean
+_bfd_free_cached_info (bfd *abfd)
+{
+  if (abfd->memory)
+    {
+      bfd_hash_table_free (&abfd->section_htab);
+      objalloc_free ((struct objalloc *) abfd->memory);
+
+      abfd->sections = NULL;
+      abfd->section_last = NULL;
+      abfd->outsymbols = NULL;
+      abfd->tdata.any = NULL;
+      abfd->usrdata = NULL;
+      abfd->memory = NULL;
+    }
+
+  return TRUE;
+}
+
 /*
 SECTION
 	Opening and closing BFDs