2005-06-29 Paul Brook <paul@codesourcery.com>

	* bfd-in.h (_bfd_elf_provide_symbol): Update prototype.
	* bfd-in2.h: Regenerate.
	* elf32-ppc.c (ppc_elf_set_sdata_syms): Make sdata symbols section
	relative.
	* elflink.c (bfd_elf_set_symbol): Add section argument.
	(_bfd_elf_provide_symbol): Ditto.
	(_bfd_elf_provide_section_bound_symbols): Pass NULL section argument.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index ed9284a..539b349 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,13 @@
+2005-06-29  Paul Brook  <paul@codesourcery.com>
+
+       * bfd-in.h (_bfd_elf_provide_symbol): Update prototype.
+       * bfd-in2.h: Regenerate.
+       * elf32-ppc.c (ppc_elf_set_sdata_syms): Make sdata symbols section
+       relative.
+       * elflink.c (bfd_elf_set_symbol): Add section argument.
+       (_bfd_elf_provide_symbol): Ditto.
+       (_bfd_elf_provide_section_bound_symbols): Pass NULL section argument.
+
 2005-06-27  Carlos O'Donell <carlos@systemhalted.org>
 
        * bfd/elf32-hppa.c (struct elf32_hppa_stub_hash_entry): 

diff --git a/bfd/bfd-in.h b/bfd/bfd-in.h
index 51a21f8..b8c4ef8 100644 (file)
--- a/bfd/bfd-in.h
+++ b/bfd/bfd-in.h
@@ -698,7 +698,7 @@ 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_link_info *, const char *, bfd_vma, struct bfd_section *);
 
 extern void _bfd_elf_provide_section_bound_symbols
   (struct bfd_link_info *, struct bfd_section *sec, const char *, const char *);

diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 1107dc4..a1ca958 100644 (file)
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -705,7 +705,7 @@ 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_link_info *, const char *, bfd_vma, struct bfd_section *);
 
 extern void _bfd_elf_provide_section_bound_symbols
   (struct bfd_link_info *, struct bfd_section *sec, const char *, const char *);

diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c
index 1d86b48..4f1eec9 100644 (file)
--- a/bfd/elf32-ppc.c
+++ b/bfd/elf32-ppc.c
@@ -5108,24 +5108,38 @@ ppc_elf_set_sdata_syms (bfd *obfd, struct bfd_link_info *info)
       if (s == NULL)
        s = bfd_get_section_by_name (obfd, lsect->bss_name);
 
-      val = 0;
-      if (s != NULL)
-       val = s->vma + 32768;
-      lsect->sym_val = val;
+      if (s)
+       {
+         /* VxWorks executables are relocatable, so the sdata base symbols
+            must be section-relative.  If the section is zero sized leave
+            them as absolute symbols to avoid creationg an unused
+            output section.  */
+         val = 32768;
+         lsect->sym_val = val + s->vma;
+         if (s->size == 0)
+           {
+             val += s->vma;
+             s = NULL;
+           }
+       }
+      else
+       {
+         val = 0;
+         lsect->sym_val = 0;
+       }
 
-      _bfd_elf_provide_symbol (info, lsect->sym_name, val);
+      _bfd_elf_provide_symbol (info, lsect->sym_name, val, s);
     }
 
   s = bfd_get_section_by_name (obfd, ".sbss");
-  val = 0;
-  if (s != NULL)
-    val = s->vma;
-  _bfd_elf_provide_symbol (info, "__sbss_start", val);
-  _bfd_elf_provide_symbol (info, "___sbss_start", val);
+  _bfd_elf_provide_symbol (info, "__sbss_start", 0, NULL);
+  _bfd_elf_provide_symbol (info, "___sbss_start", 0, NULL);
   if (s != NULL)
-    val += s->size;
-  _bfd_elf_provide_symbol (info, "__sbss_end", val);
-  _bfd_elf_provide_symbol (info, "___sbss_end", val);
+    val = s->size;
+  else
+    val = 0;
+  _bfd_elf_provide_symbol (info, "__sbss_end", val, s);
+  _bfd_elf_provide_symbol (info, "___sbss_end", val, s);
   return TRUE;
 }
 \f

diff --git a/bfd/elflink.c b/bfd/elflink.c
index e404d3b..0a70c23 100644 (file)
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -9792,10 +9792,11 @@ _bfd_elf_section_already_linked (bfd *abfd, struct bfd_section * sec)
 }
 
 static void
-bfd_elf_set_symbol (struct elf_link_hash_entry *h, bfd_vma val)
+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 = bfd_abs_section_ptr;
+  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;
@@ -9803,11 +9804,12 @@ bfd_elf_set_symbol (struct elf_link_hash_entry *h, bfd_vma val)
   h->forced_local = 1;
 }
 
-/* Set NAME to VAL if the symbol exists and is undefined.  */
+/* Set NAME to VAL if the symbol exists and is undefined.  If val 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)
+                        bfd_vma val, struct bfd_section *s)
 {
   struct elf_link_hash_entry *h;
 
@@ -9815,7 +9817,7 @@ _bfd_elf_provide_symbol (struct bfd_link_info *info, const char *name,
                            FALSE);
   if (h != NULL && (h->root.type == bfd_link_hash_undefined
                    || h->root.type == bfd_link_hash_undefweak))
-    bfd_elf_set_symbol (h, val);
+    bfd_elf_set_symbol (h, val, s);
 }
 
 /* Set START and END to boundaries of SEC if they exist and are
@@ -9868,8 +9870,8 @@ _bfd_elf_provide_section_bound_symbols (struct bfd_link_info *info,
     }
 
   if (do_start)
-    bfd_elf_set_symbol (hs, start_val);
+    bfd_elf_set_symbol (hs, start_val, NULL);
 
   if (do_end)
-    bfd_elf_set_symbol (he, end_val);
+    bfd_elf_set_symbol (he, end_val, NULL);
 }