bfd/

	* elf32-ppc.c (struct elf_linker_section): Replace sym_val field
	with sym.
	(ppc_elf_relocate_section): Adjust for above.
	(create_sdata_sym): New function.
	(ppc_elf_create_linker_section): Call it.
	(ppc_elf_check_relocs): Correct has_sda_refs and non_got_refs.
	Create sdata syms for all SDA relocs.
	(ppc_elf_adjust_dynamic_symbol): Don't special case _SDA_BASE_
	and _SDA2_BASE_.
	(ppc_elf_set_sdata_syms): Delete.
	* elflink.c (bfd_elf_size_dynamic_sections): Don't create DT_INIT
	and DT_FINI tags unless associated section has input.
	(bfd_elf_set_symbol, _bfd_elf_provide_symbol): Delete.
	(_bfd_elf_provide_section_bound_symbols): Delete.
	* bfd-in.h (_bfd_elf_provide_symbol): Delete.
	(_bfd_elf_provide_section_bound_symbols): Delete.
	* bfd-in2.h: Regenerate.
ld/
	* ldemul.c (ldemul_do_assignments, do_assignments_default): Delete.
	* ldemul.h (ldemul_do_assignments, do_assignments_default): Delete.
	(struct ld_emulation_xfer_struct): Remove do_assignments field.
	* ldlang.c (lang_do_assignments): Don't call ldemul_do_assignments.
	* emulparams/elf32ppc.sh (SDATA_START_SYMBOLS): New.
	(SDATA2_START_SYMBOLS, SBSS_START_SYMBOLS, SBSS_END_SYMBOLS): New.
	* emultempl/aix.em (ld_*_emulation): Delete do_assignments init.
	* emultempl/armcoff.em: Likewise.
	* emultempl/beos.em: Likewise.
	* emultempl/generic.em: Likewise.
	* emultempl/gld960.em: Likewise.
	* emultempl/gld960c.em: Likewise.
	* emultempl/linux.em: Likewise.
	* emultempl/lnk960.em: Likewise.
	* emultempl/m68kcoff.em: Likewise.
	* emultempl/pe.em: Likewise.
	* emultempl/sunos.em: Likewise.
	* emultempl/ticoff.em: Likewise.
	* emultempl/vanilla.em: Likewise.
	* emultempl/elf32.em: Likewise.
	(gld*_provide_bound_symbols): Delete.
	(gld*_provide_init_fini_syms): Delete.
	(gld*_before_allocation): Don't call ldemul_do_assignments.
	* emultempl/ppc32elf.em (ppc_do_assignments): Delete.
	(LDEMUL_DO_ASSIGNMENTS): Delete.
	* scripttempl/elf.sc: Provide init/fini syms.  Add SBSS_START_SYMBOLS,
	SBSS_END_SYMBOLS, SDATA2_START_SYMBOLS.

5 files changed, 122 insertions, 140 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 98fb936..3854c21 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,5 +1,25 @@
 2005-08-04  Alan Modra  <amodra@bigpond.net.au>
 
+	* elf32-ppc.c (struct elf_linker_section): Replace sym_val field
+	with sym.
+	(ppc_elf_relocate_section): Adjust for above.
+	(create_sdata_sym): New function.
+	(ppc_elf_create_linker_section): Call it.
+	(ppc_elf_check_relocs): Correct has_sda_refs and non_got_refs.
+	Create sdata syms for all SDA relocs.
+	(ppc_elf_adjust_dynamic_symbol): Don't special case _SDA_BASE_
+	and _SDA2_BASE_.
+	(ppc_elf_set_sdata_syms): Delete.
+	* elflink.c (bfd_elf_size_dynamic_sections): Don't create DT_INIT
+	and DT_FINI tags unless associated section has input.
+	(bfd_elf_set_symbol, _bfd_elf_provide_symbol): Delete.
+	(_bfd_elf_provide_section_bound_symbols): Delete.
+	* bfd-in.h (_bfd_elf_provide_symbol): Delete.
+	(_bfd_elf_provide_section_bound_symbols): Delete.
+	* bfd-in2.h: Regenerate.
+
+2005-08-04  Alan Modra  <amodra@bigpond.net.au>
+
 	* elflink.c (fix_syms, _bfd_elf_fix_excluded_sec_syms): Move to..
 	* linker.c (fix_syms, _bfd_fix_excluded_sec_syms): ..here.
 	* bfd-in.h (_bfd_fix_excluded_sec_syms): Rename.
diff --git a/bfd/bfd-in.h b/bfd/bfd-in.h
index 39a82cb..cd3bc76 100644
--- a/bfd/bfd-in.h
+++ b/bfd/bfd-in.h
@@ -702,12 +702,6 @@ extern int bfd_get_sign_extend_vma
 extern struct bfd_section *_bfd_elf_tls_setup
   (bfd *, struct bfd_link_info *);
 
-extern void _bfd_elf_provide_symbol
-  (struct bfd_link_info *, const char *, bfd_vma, struct bfd_section *);
-
-extern void _bfd_elf_provide_section_bound_symbols
-  (struct bfd_link_info *, struct bfd_section *, const char *, const char *);
-
 extern void _bfd_fix_excluded_sec_syms
   (bfd *, struct bfd_link_info *);
 
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 50ac263..8ca1d6f 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -709,12 +709,6 @@ extern int bfd_get_sign_extend_vma
 extern struct bfd_section *_bfd_elf_tls_setup
   (bfd *, struct bfd_link_info *);
 
-extern void _bfd_elf_provide_symbol
-  (struct bfd_link_info *, const char *, bfd_vma, struct bfd_section *);
-
-extern void _bfd_elf_provide_section_bound_symbols
-  (struct bfd_link_info *, struct bfd_section *, const char *, const char *);
-
 extern void _bfd_fix_excluded_sec_syms
   (bfd *, struct bfd_link_info *);
 
diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c
index 5f51a3a..168e58c 100644
--- a/bfd/elf32-ppc.c
+++ b/bfd/elf32-ppc.c
@@ -1668,8 +1668,8 @@ typedef struct elf_linker_section
   const char *bss_name;
   /* Associated symbol name.  */
   const char *sym_name;
-  /* Value of symbol.  */
-  bfd_vma sym_val;
+  /* Associated symbol.  */
+  struct elf_link_hash_entry *sym;
 } elf_linker_section_t;
 
 /* Linked list of allocated pointer entries.  This hangs off of the
@@ -2734,6 +2734,20 @@ ppc_elf_add_symbol_hook (bfd *abfd,
   return TRUE;
 }
 
+static bfd_boolean
+create_sdata_sym (struct ppc_elf_link_hash_table *htab,
+		  elf_linker_section_t *lsect)
+{
+  lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
+				     TRUE, FALSE, TRUE);
+  if (lsect->sym == NULL)
+    return FALSE;
+  if (lsect->sym->root.type == bfd_link_hash_new)
+    lsect->sym->non_elf = 0;
+  lsect->sym->ref_regular = 1;
+  return TRUE;
+}
+
 /* Create a special linker section.  */
 
 static bfd_boolean
@@ -2760,7 +2774,7 @@ ppc_elf_create_linker_section (bfd *abfd,
     return FALSE;
   lsect->section = s;
 
-  return TRUE;
+  return create_sdata_sym (htab, lsect);
 }
 
 /* Find a linker generated pointer with a given addend and type.  */
@@ -3090,6 +3104,11 @@ ppc_elf_check_relocs (bfd *abfd,
 	  if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
 						  h, rel))
 	    return FALSE;
+	  if (h != NULL)
+	    {
+	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
+	      h->non_got_ref = TRUE;
+	    }
 	  break;
 
 	  /* Indirect .sdata2 relocation.  */
@@ -3106,12 +3125,65 @@ ppc_elf_check_relocs (bfd *abfd,
 	  if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
 						  h, rel))
 	    return FALSE;
+	  if (h != NULL)
+	    {
+	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
+	      h->non_got_ref = TRUE;
+	    }
 	  break;
 
 	case R_PPC_SDAREL16:
+	  if (info->shared)
+	    {
+	      bad_shared_reloc (abfd, r_type);
+	      return FALSE;
+	    }
+	  if (htab->sdata[0].sym == NULL
+	      && !create_sdata_sym (htab, &htab->sdata[0]))
+	    return FALSE;
+	  if (h != NULL)
+	    {
+	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
+	      h->non_got_ref = TRUE;
+	    }
+	  break;
+
 	case R_PPC_EMB_SDA2REL:
+	  if (info->shared)
+	    {
+	      bad_shared_reloc (abfd, r_type);
+	      return FALSE;
+	    }
+	  if (htab->sdata[1].sym == NULL
+	      && !create_sdata_sym (htab, &htab->sdata[1]))
+	    return FALSE;
+	  if (h != NULL)
+	    {
+	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
+	      h->non_got_ref = TRUE;
+	    }
+	  break;
+
 	case R_PPC_EMB_SDA21:
 	case R_PPC_EMB_RELSDA:
+	  if (info->shared)
+	    {
+	      bad_shared_reloc (abfd, r_type);
+	      return FALSE;
+	    }
+	  if (htab->sdata[0].sym == NULL
+	      && !create_sdata_sym (htab, &htab->sdata[0]))
+	    return FALSE;
+	  if (htab->sdata[1].sym == NULL
+	      && !create_sdata_sym (htab, &htab->sdata[1]))
+	    return FALSE;
+	  if (h != NULL)
+	    {
+	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
+	      h->non_got_ref = TRUE;
+	    }
+	  break;
+
 	case R_PPC_EMB_NADDR32:
 	case R_PPC_EMB_NADDR16:
 	case R_PPC_EMB_NADDR16_LO:
@@ -3123,11 +3195,7 @@ ppc_elf_check_relocs (bfd *abfd,
 	      return FALSE;
 	    }
 	  if (h != NULL)
-	    {
-	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
-	      /* We may need a copy reloc.  */
-	      h->non_got_ref = TRUE;
-	    }
+	    h->non_got_ref = TRUE;
 	  break;
 
 	case R_PPC_PLT32:
@@ -4046,24 +4114,6 @@ ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
   /* This is a reference to a symbol defined by a dynamic object which
      is not a function.  */
 
-  /* First, a fudge for old shared libs that export some symbols they
-     should not.  */
-  if (!h->def_regular
-      && (strcmp (h->root.root.string, "_SDA_BASE_") == 0
-	  || strcmp (h->root.root.string, "_SDA2_BASE_") == 0))
-    {
-      /* These symbols will be defined later, as if they were defined in
-	 a linker script.  We don't want to use a definition in a shared
-	 object.  */
-      const struct elf_backend_data *bed;
-
-      bed = get_elf_backend_data (htab->elf.dynobj);
-      (*bed->elf_backend_hide_symbol) (info, h, TRUE);
-      h->root.type = bfd_link_hash_undefined;
-      h->root.u.undef.abfd = htab->elf.dynobj;
-      return TRUE;
-    }
-
   /* If we are creating a shared library, we must presume that the
      only references to the symbol are via the global offset table.
      For such cases we need not do anything here; the relocations will
@@ -5259,52 +5309,6 @@ ppc_elf_relax_section (bfd *abfd,
   return FALSE;
 }
 
-/* Set _SDA_BASE_, _SDA2_BASE, and sbss start and end syms.  They are
-   set here rather than via PROVIDE in the default linker script,
-   because using PROVIDE inside an output section statement results in
-   unnecessary output sections.  Using PROVIDE outside an output section
-   statement runs the risk of section alignment affecting where the
-   section starts.  */
-
-void
-ppc_elf_set_sdata_syms (bfd *obfd, struct bfd_link_info *info)
-{
-  struct ppc_elf_link_hash_table *htab;
-  unsigned i;
-  asection *s;
-  bfd_vma val;
-
-  htab = ppc_elf_hash_table (info);
-
-  for (i = 0; i < 2; i++)
-    {
-      elf_linker_section_t *lsect = &htab->sdata[i];
-
-      s = lsect->section;
-      if (s != NULL)
-	s = s->output_section;
-      if (s == NULL)
-	s = bfd_get_section_by_name (obfd, lsect->name);
-      if (s == NULL)
-	s = bfd_get_section_by_name (obfd, lsect->bss_name);
-
-      if (s)
-	{
-	  /* VxWorks executables are relocatable, so the sdata base symbols
-	     must be section-relative.  */
-	  val = 32768;
-	  lsect->sym_val = val + s->vma;
-	}
-      else
-	{
-	  val = 0;
-	  lsect->sym_val = 0;
-	}
-
-      _bfd_elf_provide_symbol (info, lsect->sym_name, val, s);
-    }
-}
-
 /* What to do when ld finds relocations against symbols defined in
    discarded sections.  */
 
@@ -6348,6 +6352,7 @@ ppc_elf_relocate_section (bfd *output_bfd,
 	case R_PPC_SDAREL16:
 	  {
 	    const char *name;
+	    struct elf_link_hash_entry *sh;
 
 	    BFD_ASSERT (sec != NULL);
 	    name = bfd_get_section_name (abfd, sec->output_section);
@@ -6364,7 +6369,10 @@ ppc_elf_relocate_section (bfd *output_bfd,
 		   howto->name,
 		   name);
 	      }
-	    addend -= htab->sdata[0].sym_val;
+	    sh = htab->sdata[0].sym;
+	    addend -= (sh->root.u.def.value
+		       + sh->root.u.def.section->output_offset
+		       + sh->root.u.def.section->output_section->vma);
 	  }
 	  break;
 
@@ -6372,6 +6380,7 @@ ppc_elf_relocate_section (bfd *output_bfd,
 	case R_PPC_EMB_SDA2REL:
 	  {
 	    const char *name;
+	    struct elf_link_hash_entry *sh;
 
 	    BFD_ASSERT (sec != NULL);
 	    name = bfd_get_section_name (abfd, sec->output_section);
@@ -6390,7 +6399,10 @@ ppc_elf_relocate_section (bfd *output_bfd,
 		ret = FALSE;
 		continue;
 	      }
-	    addend -= htab->sdata[1].sym_val;
+	    sh = htab->sdata[1].sym;
+	    addend -= (sh->root.u.def.value
+		       + sh->root.u.def.section->output_offset
+		       + sh->root.u.def.section->output_section->vma);
 	  }
 	  break;
 
@@ -6400,6 +6412,7 @@ ppc_elf_relocate_section (bfd *output_bfd,
 	  {
 	    const char *name;
 	    int reg;
+	    struct elf_link_hash_entry *sh;
 
 	    BFD_ASSERT (sec != NULL);
 	    name = bfd_get_section_name (abfd, sec->output_section);
@@ -6409,14 +6422,20 @@ ppc_elf_relocate_section (bfd *output_bfd,
 		     && (name[5] == 0 || name[5] == '.'))))
 	      {
 		reg = 13;
-		addend -= htab->sdata[0].sym_val;
+		sh = htab->sdata[0].sym;
+		addend -= (sh->root.u.def.value
+			   + sh->root.u.def.section->output_offset
+			   + sh->root.u.def.section->output_section->vma);
 	      }
 
 	    else if (strncmp (name, ".sdata2", 7) == 0
 		     || strncmp (name, ".sbss2", 6) == 0)
 	      {
 		reg = 2;
-		addend -= htab->sdata[1].sym_val;
+		sh = htab->sdata[1].sym;
+		addend -= (sh->root.u.def.value
+			   + sh->root.u.def.section->output_offset
+			   + sh->root.u.def.section->output_section->vma);
 	      }
 
 	    else if (strcmp (name, ".PPC.EMB.sdata0") == 0
diff --git a/bfd/elflink.c b/bfd/elflink.c
index 457ba8e..7b7cddd 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -5032,6 +5032,7 @@ bfd_elf_size_dynamic_sections (bfd *output_bfd,
       asection *dynstr;
       struct bfd_elf_version_tree *t;
       struct bfd_elf_version_expr *d;
+      asection *s;
       bfd_boolean all_defined;
 
       *sinterpptr = bfd_get_section_by_name (dynobj, ".interp");
@@ -5235,7 +5236,8 @@ bfd_elf_size_dynamic_sections (bfd *output_bfd,
 	    return FALSE;
 	}
 
-      if (bfd_get_section_by_name (output_bfd, ".preinit_array") != NULL)
+      s = bfd_get_section_by_name (output_bfd, ".preinit_array");
+      if (s != NULL && s->linker_has_input)
 	{
 	  /* DT_PREINIT_ARRAY is not allowed in shared library.  */
 	  if (! info->executable)
@@ -5263,13 +5265,15 @@ bfd_elf_size_dynamic_sections (bfd *output_bfd,
 	      || !_bfd_elf_add_dynamic_entry (info, DT_PREINIT_ARRAYSZ, 0))
 	    return FALSE;
 	}
-      if (bfd_get_section_by_name (output_bfd, ".init_array") != NULL)
+      s = bfd_get_section_by_name (output_bfd, ".init_array");
+      if (s != NULL && s->linker_has_input)
 	{
 	  if (!_bfd_elf_add_dynamic_entry (info, DT_INIT_ARRAY, 0)
 	      || !_bfd_elf_add_dynamic_entry (info, DT_INIT_ARRAYSZ, 0))
 	    return FALSE;
 	}
-      if (bfd_get_section_by_name (output_bfd, ".fini_array") != NULL)
+      s = bfd_get_section_by_name (output_bfd, ".fini_array");
+      if (s != NULL && s->linker_has_input)
 	{
 	  if (!_bfd_elf_add_dynamic_entry (info, DT_FINI_ARRAY, 0)
 	      || !_bfd_elf_add_dynamic_entry (info, DT_FINI_ARRAYSZ, 0))
@@ -9841,55 +9845,6 @@ _bfd_elf_section_already_linked (bfd *abfd, struct bfd_section * sec)
   bfd_section_already_linked_table_insert (already_linked_list, sec);
 }
 
-static void
-bfd_elf_set_symbol (struct elf_link_hash_entry *h, bfd_vma val,
-		    struct bfd_section *s)
-{
-  h->root.type = bfd_link_hash_defined;
-  h->root.u.def.section = s ? s : bfd_abs_section_ptr;
-  h->root.u.def.value = val;
-  h->def_regular = 1;
-  h->type = STT_OBJECT;
-  h->other = STV_HIDDEN | (h->other & ~ ELF_ST_VISIBILITY (-1));
-  h->forced_local = 1;
-}
-
-/* Set NAME to VAL if the symbol exists and is not defined in a regular
-   object file.  If S is NULL it is an absolute symbol, otherwise it is
-   relative to that section.  */
-
-void
-_bfd_elf_provide_symbol (struct bfd_link_info *info, const char *name,
-			 bfd_vma val, struct bfd_section *s)
-{
-  struct elf_link_hash_entry *h;
-
-  bfd_elf_record_link_assignment (info, name, TRUE);
-
-  h = elf_link_hash_lookup (elf_hash_table (info), name, FALSE, FALSE, FALSE);
-  if (h != NULL
-      && !(h->root.type == bfd_link_hash_defined
-	   && h->root.u.def.section != NULL
-	   && h->root.u.def.section != h->root.u.def.section->output_section))
-    bfd_elf_set_symbol (h, val, s);
-}
-
-/* Set START and END to boundaries of SEC if they exist and are not
-   defined in regular object files.  */
-
-void
-_bfd_elf_provide_section_bound_symbols (struct bfd_link_info *info,
-					asection *sec,
-					const char *start,
-					const char *end)
-{
-  bfd_vma val = 0;
-  _bfd_elf_provide_symbol (info, start, val, sec);
-  if (sec != NULL)
-    val = sec->size;
-  _bfd_elf_provide_symbol (info, end, val, sec);
-}
-
 bfd_boolean
 _bfd_elf_common_definition (Elf_Internal_Sym *sym)
 {