1 files changed, 45 insertions, 17 deletions

diff --git a/contrib/binutils/bfd/elf32-ppc.c b/contrib/binutils/bfd/elf32-ppc.c
index 31d9e0c..9abdf61 100644
--- a/contrib/binutils/bfd/elf32-ppc.c
+++ b/contrib/binutils/bfd/elf32-ppc.c
@@ -43,6 +43,7 @@ static boolean ppc_elf_relax_section
   PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
 static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
   PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static boolean ppc_elf_object_p PARAMS ((bfd *));
 static boolean ppc_elf_set_private_flags PARAMS ((bfd *, flagword));
 static boolean ppc_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
 
@@ -56,7 +57,7 @@ static boolean ppc_elf_create_dynamic_sections
 
 static boolean ppc_elf_section_from_shdr PARAMS ((bfd *,
 						  Elf32_Internal_Shdr *,
-						  char *));
+						  const char *));
 static boolean ppc_elf_fake_sections
   PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *));
 
@@ -70,7 +71,7 @@ static boolean ppc_elf_check_relocs PARAMS ((bfd *,
 					     asection *,
 					     const Elf_Internal_Rela *));
 
-static asection * ppc_elf_gc_mark_hook PARAMS ((bfd *abfd,
+static asection * ppc_elf_gc_mark_hook PARAMS ((asection *sec,
 						struct bfd_link_info *info,
 						Elf_Internal_Rela *rel,
 						struct elf_link_hash_entry *h,
@@ -1380,6 +1381,27 @@ ppc_elf_addr16_ha_reloc (abfd, reloc_entry, symbol, data, input_section,
   return bfd_reloc_continue;
 }
 
+/* Fix bad default arch selected for a 32 bit input bfd when the
+   default is 64 bit.  */
+
+static boolean
+ppc_elf_object_p (abfd)
+     bfd *abfd;
+{
+  if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
+    {
+      Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
+
+      if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
+	{
+	  /* Relies on arch after 64 bit default being 32 bit default.  */
+	  abfd->arch_info = abfd->arch_info->next;
+	  BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
+	}
+    }
+  return true;
+}
+
 /* Function to set whether a module needs the -mrelocatable bit set.  */
 
 static boolean
@@ -1407,7 +1429,7 @@ ppc_elf_merge_private_bfd_data (ibfd, obfd)
   boolean error;
 
   /* Check if we have the same endianess */
-  if (_bfd_generic_verify_endian_match (ibfd, obfd) == false)
+  if (! _bfd_generic_verify_endian_match (ibfd, obfd))
     return false;
 
   if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
@@ -1490,7 +1512,7 @@ static boolean
 ppc_elf_section_from_shdr (abfd, hdr, name)
      bfd *abfd;
      Elf32_Internal_Shdr *hdr;
-     char *name;
+     const char *name;
 {
   asection *newsect;
   flagword flags;
@@ -2459,8 +2481,8 @@ ppc_elf_check_relocs (abfd, info, sec, relocs)
    relocation.  */
 
 static asection *
-ppc_elf_gc_mark_hook (abfd, info, rel, h, sym)
-     bfd *abfd;
+ppc_elf_gc_mark_hook (sec, info, rel, h, sym)
+     asection *sec;
      struct bfd_link_info *info ATTRIBUTE_UNUSED;
      Elf_Internal_Rela *rel;
      struct elf_link_hash_entry *h;
@@ -2490,9 +2512,7 @@ ppc_elf_gc_mark_hook (abfd, info, rel, h, sym)
 	}
     }
   else
-    {
-      return bfd_section_from_elf_index (abfd, sym->st_shndx);
-    }
+    return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
 
   return NULL;
 }
@@ -2723,11 +2743,11 @@ ppc_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
       else
 	{
 	  BFD_ASSERT ((h->got.offset & 1) == 0);
-	  bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
 	  rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_GLOB_DAT);
 	  rela.r_addend = 0;
 	}
 
+      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
       bfd_elf32_swap_reloca_out (output_bfd, &rela,
 				 ((Elf32_External_Rela *) srela->contents
 				  + srela->reloc_count));
@@ -3267,13 +3287,19 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
 					  + sreloc->reloc_count));
 	      ++sreloc->reloc_count;
 
-	      /* This reloc will be computed at runtime, so there's no
-                 need to do anything now, unless this is a RELATIVE
-                 reloc in an unallocated section.  */
-	      if (skip != -1
-		  || (input_section->flags & SEC_ALLOC) != 0
-		  || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE)
+	      if (skip == -1)
 		continue;
+
+	      /* This reloc will be computed at runtime.  We clear the memory
+		 so that it contains predictable value.  */
+	      if (! skip
+		  && ((input_section->flags & SEC_ALLOC) != 0
+		      || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
+		{
+		  relocation = howto->pc_relative ? outrel.r_offset : 0;
+		  addend = 0;
+		  break;
+		}
 	    }
 
 	  /* Arithmetic adjust relocations that aren't going into a
@@ -3370,7 +3396,6 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
 		off &= ~1;
 	      else
 		{
-		  bfd_put_32 (output_bfd, relocation, sgot->contents + off);
 
 		  if (info->shared)
 		    {
@@ -3392,8 +3417,10 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
 						   srelgot->contents)
 						  + srelgot->reloc_count));
 		      ++srelgot->reloc_count;
+		      relocation = 0;
 		    }
 
+		  bfd_put_32 (output_bfd, relocation, sgot->contents + off);
 		  local_got_offsets[r_symndx] |= 1;
 		}
 
@@ -3797,6 +3824,7 @@ ppc_elf_grok_psinfo (abfd, note)
 #define bfd_elf32_bfd_set_private_flags		ppc_elf_set_private_flags
 #define bfd_elf32_bfd_final_link		_bfd_elf32_gc_common_final_link
 
+#define elf_backend_object_p			ppc_elf_object_p
 #define elf_backend_gc_mark_hook		ppc_elf_gc_mark_hook
 #define elf_backend_gc_sweep_hook		ppc_elf_gc_sweep_hook
 #define elf_backend_section_from_shdr		ppc_elf_section_from_shdr