bfd/

	* section.c (struct bfd_section): Replace link_order_head and
	link_order_tail with map_head and map_tail union.
	(STD_SECTION): Update.
	(_bfd_strip_section_from_output): Delete.
	* aoutx.h: Update throughout for above changes.
	* coff-ppc.c: Likewise.
	* cofflink.c: Likewise.
	* ecoff.c: Likewise.
	* elf-eh-frame.c: Likewise.
	* elf-m10300.c: Likewise.
	* elf.c: Likewise.
	* elf32-arm.c: Likewise.
	* elf32-cris.c: Likewise.
	* elf32-hppa.c: Likewise.
	* elf32-i386.c: Likewise.
	* elf32-m32r.c: Likewise.
	* elf32-m68hc1x.c: Likewise.
	* elf32-m68k.c: Likewise.
	* elf32-ppc.c: Likewise.
	* elf32-s390.c: Likewise.
	* elf32-sh.c: Likewise.
	* elf32-vax.c: Likewise.
	* elf32-xtensa.c: Likewise.
	* elf64-alpha.c: Likewise.
	* elf64-hppa.c: Likewise.
	* elf64-ppc.c: Likewise.
	* elf64-s390.c: Likewise.
	* elf64-sh64.c: Likewise.
	* elf64-x86-64.c: Likewise.
	* elflink.c: Likewise.
	* elfxx-ia64.c: Likewise.
	* elfxx-mips.c: Likewise.
	* elfxx-sparc.c: Likewise.
	* linker.c: Likewise.
	* merge.c: Likewise.
	* pdp11.c: Likewise.
	* xcofflink.c: Likewise.
	* elflink.c (bfd_boolean bfd_elf_size_dynsym_hash_dynstr): Split
	out from bfd_elf_size_dynamic_sections.
	* bfd-in.h (bfd_boolean bfd_elf_size_dynsym_hash_dynstr): Declare.
	* bfd-in2.h: Regenerate.
ld/
	* ldemul.c: Include bfdlink.h.
	(ldemul_before_allocation): Assume before_allocation is non-zero.
	(before_allocation_default): Call strip_excluded_output_sections.
	* ldlang.c (stripped_excluded_sections): New variable.
	(lang_add_section): Build input section list for each output
	section, attached via map_head and map_tail pointers.
	(strip_excluded_output_sections): Make global.  Traverse the
	input section lists to find which output sections can go.  Clear
	link_order pointers and set stripped_excluded_sections.
	(lang_process): Call strip_excluded_output_sections.
	* ldlang.h (strip_excluded_output_sections): Declare.
	* ldwrite.c: Update throuhout for link_order_head -> map_head change.
	* emultempl/aix.em (before_allocation): Call
	strip_excluded_output_sections.
	* emultempl/armcoff.em (before_allocation): Likewise.
	* emultempl/beos.em (before_allocation): Likewise.
	* emultempl/linux.em (before_allocation): Likewise.
	* emultempl/pe.em (before_allocation): Likewise.
	* emultempl/sunos.em (before_allocation): Likewise.
	* emultempl/elf32.em (before_allocation): Likewise.  Call
	bfd_elf_size_dynsym_hash_dynstr too.
	* emultempl/lnk960.em (lnk960_before_allocation): Delete.
	(ld_lnk960): Use before_allocation_default.

1 files changed, 10 insertions, 48 deletions

diff --git a/bfd/section.c b/bfd/section.c
index 0f39632..b3b6230 100644
--- a/bfd/section.c
+++ b/bfd/section.c
@@ -497,8 +497,14 @@ CODE_FRAGMENT
 .  struct bfd_symbol *symbol;
 .  struct bfd_symbol **symbol_ptr_ptr;
 .
-.  struct bfd_link_order *link_order_head;
-.  struct bfd_link_order *link_order_tail;
+.  {* Early in the link process, map_head and map_tail are used to build
+.     a list of input sections attached to an output section.  Later,
+.     output sections use these fields for a list of bfd_link_order
+.     structs.  *}
+.  union {
+.    struct bfd_link_order *link_order;
+.    struct bfd_section *s;
+.  } map_head, map_tail;
 .} asection;
 .
 .{* These sections are global, and are managed by BFD.  The application
@@ -692,8 +698,8 @@ static const asymbol global_syms[] =
     /* symbol_ptr_ptr,                                               */	\
        (struct bfd_symbol **) &SYM,					\
 									\
-    /* link_order_head, link_order_tail                              */	\
-       NULL,            NULL						\
+    /* map_head, map_tail                                            */	\
+       { NULL }, { NULL }						\
     }
 
 STD_SECTION (bfd_com_section, SEC_IS_COMMON, bfd_com_symbol,
@@ -1443,50 +1449,6 @@ DESCRIPTION
 
 /*
 FUNCTION
-	_bfd_strip_section_from_output
-
-SYNOPSIS
-	void _bfd_strip_section_from_output
-	  (struct bfd_link_info *info, asection *section);
-
-DESCRIPTION
-	Remove @var{section} from the output.  If the output section
-	becomes empty, remove it from the output bfd.
-
-	This function won't actually do anything except twiddle flags
-	if called too late in the linking process, when it's not safe
-	to remove sections.
-*/
-void
-_bfd_strip_section_from_output (struct bfd_link_info *info, asection *s)
-{
-  asection *os;
-  asection *is;
-  bfd *abfd;
-
-  s->flags |= SEC_EXCLUDE;
-
-  /* If the section wasn't assigned to an output section, or the
-     section has been discarded by the linker script, there's nothing
-     more to do.  */
-  os = s->output_section;
-  if (os == NULL || os->owner == NULL)
-    return;
-
-  /* If the output section has other (non-excluded) input sections, we
-     can't remove it.  */
-  for (abfd = info->input_bfds; abfd != NULL; abfd = abfd->link_next)
-    for (is = abfd->sections; is != NULL; is = is->next)
-      if (is->output_section == os && (is->flags & SEC_EXCLUDE) == 0)
-	return;
-
-  /* If the output section is empty, flag it for removal too.
-     See ldlang.c:strip_excluded_output_sections for the action.  */
-  os->flags |= SEC_EXCLUDE;
-}
-
-/*
-FUNCTION
 	bfd_generic_is_group_section
 
 SYNOPSIS