Free linker hash table from bfd_close.

Also tidies numerous error exit paths in various link_hash_table_create
functions that failed to free memory.

include/
	* bfdlink.h (struct bfd_link_hash_table): Add hash_table_free field.
bfd/
	* archive.c: Include bfdlink.h.
	(_bfd_archive_close_and_cleanup): Call linker hash_table_free.
	* bfd.c (struct bfd): Add is_linker_output field.
	* elf-bfd.h (_bfd_elf_link_hash_table_free): Update prototype.
	* linker.c (_bfd_link_hash_table_init): Set up hash_table_free,
	link.hash and is_linker_output.
	(_bfd_generic_link_hash_table_free): Replace bfd_link_hash_table*
	param with bfd*.  Assert is_linker_output and link.hash, and
	clear them before exit.
	* elf-m10300.c (elf32_mn10300_link_hash_table_free): Replace
	bfd_link_hash_table* param with bfd*.  Hack is_linker_output
	and link.hash so we can free two linker hash tables.
	(elf32_mn10300_link_hash_table_create): Create static_hash_table
	first.  Clean up on errors.  Set hash_table_free pointer.
	* elf32-arm.c (elf32_arm_link_hash_table_free): Replace
	bfd_link_hash_table* param with bfd*.
	(elf32_arm_link_hash_table_create): Clean up on errors.  Set
	hash_table_free pointer.
	* elf32-avr.c, * elf32-hppa.c, * elf32-i386.c, * elf32-m68hc1x.c,
	* elf32-m68k.c, * elf32-metag.c, * elf32-nios2.c, * elf32-xgate.c,
	* elf64-ia64-vms.c, * elf64-ppc.c, * elf64-x86-64.c, * elflink.c,
	* elfnn-aarch64.c, * elfnn-ia64.c, * elfxx-sparc.c,
	* xcofflink.c: Similarly.
	* simple.c (bfd_simple_get_relocated_section_contents): Save and
	clear link.next before creating linker hash table.  Clean up on
	errors, and restore link.next on exit.
	* elf32-m68hc1x.h (m68hc11_elf_bfd_link_hash_table_free): Delete.
	* elf32-xgate.h (xgate_elf_bfd_link_hash_table_free): Delete.
	* elfxx-sparc.h (_bfd_sparc_elf_link_hash_table_free): Delete.
	* libcoff-in.h (_bfd_xcoff_bfd_link_hash_table_free): Delete.
	* hash.c (bfd_hash_table_init_n): Free table on error.
	* libbfd-in.h (_bfd_generic_link_hash_table_free): Update proto.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
	* libcoff.h: Regenerate.

1 files changed, 12 insertions, 2 deletions

diff --git a/bfd/simple.c b/bfd/simple.c
index 7d256bf..ca64101 100644
--- a/bfd/simple.c
+++ b/bfd/simple.c
@@ -188,6 +188,7 @@ bfd_simple_get_relocated_section_contents (bfd *abfd,
   bfd_byte *contents, *data;
   int storage_needed;
   struct saved_offsets saved_offsets;
+  bfd *link_next;
 
   /* Don't apply relocation on executable and shared library.  See
      PR 4756.  */
@@ -209,6 +210,8 @@ bfd_simple_get_relocated_section_contents (bfd *abfd,
   link_info.input_bfds = abfd;
   link_info.input_bfds_tail = &abfd->link.next;
 
+  link_next = abfd->link.next;
+  abfd->link.next = NULL;
   link_info.hash = _bfd_generic_link_hash_table_create (abfd);
   link_info.callbacks = &callbacks;
   callbacks.warning = simple_dummy_warning;
@@ -232,7 +235,11 @@ bfd_simple_get_relocated_section_contents (bfd *abfd,
       bfd_size_type amt = sec->rawsize > sec->size ? sec->rawsize : sec->size;
       data = (bfd_byte *) bfd_malloc (amt);
       if (data == NULL)
-	return NULL;
+	{
+	  _bfd_generic_link_hash_table_free (abfd);
+	  abfd->link.next = link_next;
+	  return NULL;
+	}
       outbuf = data;
     }
 
@@ -243,6 +250,8 @@ bfd_simple_get_relocated_section_contents (bfd *abfd,
     {
       if (data)
 	free (data);
+      _bfd_generic_link_hash_table_free (abfd);
+      abfd->link.next = link_next;
       return NULL;
     }
   bfd_map_over_sections (abfd, simple_save_output_info, &saved_offsets);
@@ -270,6 +279,7 @@ bfd_simple_get_relocated_section_contents (bfd *abfd,
   bfd_map_over_sections (abfd, simple_restore_output_info, &saved_offsets);
   free (saved_offsets.sections);
 
-  _bfd_generic_link_hash_table_free (link_info.hash);
+  _bfd_generic_link_hash_table_free (abfd);
+  abfd->link.next = link_next;
   return contents;
 }