X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Felfxx-sparc.c;h=afd62d4a504024b763ce833f9f27c440775cd76a;hb=c20c30f615756ddfccc4bb75c65ccfc1a399466e;hp=9f9fedadfc533e8381e9758a94b176e5f57c0988;hpb=bca65a2394ce11bb4a0b001b8a986961c2e84881;p=deliverable%2Fbinutils-gdb.git

diff --git a/bfd/elfxx-sparc.c b/bfd/elfxx-sparc.c
index 9f9fedadfc..afd62d4a50 100644
--- a/bfd/elfxx-sparc.c
+++ b/bfd/elfxx-sparc.c
@@ -1331,33 +1331,25 @@ sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
   if (! ABI_64_P (abfd)
       && r_type == R_SPARC_TLS_GD_HI22
       && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
-    r_type = R_SPARC_REV32;
+    return R_SPARC_REV32;
 
-  if (bfd_link_pic (info))
+  if (!bfd_link_executable (info))
     return r_type;
 
   switch (r_type)
     {
     case R_SPARC_TLS_GD_HI22:
-      if (is_local)
-	return R_SPARC_TLS_LE_HIX22;
-      return R_SPARC_TLS_IE_HI22;
+      return is_local ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_IE_HI22;
     case R_SPARC_TLS_GD_LO10:
-      if (is_local)
-	return R_SPARC_TLS_LE_LOX10;
-      return R_SPARC_TLS_IE_LO10;
-    case R_SPARC_TLS_IE_HI22:
-      if (is_local)
-	return R_SPARC_TLS_LE_HIX22;
-      return r_type;
-    case R_SPARC_TLS_IE_LO10:
-      if (is_local)
-	return R_SPARC_TLS_LE_LOX10;
-      return r_type;
+      return is_local ? R_SPARC_TLS_LE_LOX10 : R_SPARC_TLS_IE_LO10;
     case R_SPARC_TLS_LDM_HI22:
       return R_SPARC_TLS_LE_HIX22;
     case R_SPARC_TLS_LDM_LO10:
       return R_SPARC_TLS_LE_LOX10;
+    case R_SPARC_TLS_IE_HI22:
+      return is_local ? R_SPARC_TLS_LE_HIX22 : r_type;
+    case R_SPARC_TLS_IE_LO10:
+      return is_local ? R_SPARC_TLS_LE_LOX10 : r_type;
     }
 
   return r_type;
@@ -1425,16 +1417,14 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
       if (r_symndx < symtab_hdr->sh_info)
 	{
 	  /* A local symbol.  */
-	  isym = bfd_sym_from_r_symndx (&htab->sym_cache,
-					abfd, r_symndx);
+	  isym = bfd_sym_from_r_symndx (&htab->sym_cache, abfd, r_symndx);
 	  if (isym == NULL)
 	    return FALSE;
 
 	  /* Check relocation against local STT_GNU_IFUNC symbol.  */
 	  if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
 	    {
-	      h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
-						TRUE);
+	      h = elf_sparc_get_local_sym_hash (htab, abfd, rel, TRUE);
 	      if (h == NULL)
 		return FALSE;
 
@@ -1456,13 +1446,10 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
 	}
 
-      if (h && h->type == STT_GNU_IFUNC)
+      if (h && h->type == STT_GNU_IFUNC && h->def_regular)
 	{
-	  if (h->def_regular)
-	    {
-	      h->ref_regular = 1;
-	      h->plt.refcount += 1;
-	    }
+	  h->ref_regular = 1;
+	  h->plt.refcount += 1;
 	}
 
       /* Compatibility with old R_SPARC_REV32 reloc conflicting
@@ -1505,13 +1492,13 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 
 	case R_SPARC_TLS_LE_HIX22:
 	case R_SPARC_TLS_LE_LOX10:
-	  if (bfd_link_pic (info))
+	  if (!bfd_link_executable (info))
 	    goto r_sparc_plt32;
 	  break;
 
 	case R_SPARC_TLS_IE_HI22:
 	case R_SPARC_TLS_IE_LO10:
-	  if (bfd_link_pic (info))
+	  if (!bfd_link_executable (info))
 	    info->flags |= DF_STATIC_TLS;
 	  /* Fall through */
 
@@ -1530,14 +1517,6 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 
 	    switch (r_type)
 	      {
-	      default:
-	      case R_SPARC_GOT10:
-	      case R_SPARC_GOT13:
-	      case R_SPARC_GOT22:
-	      case R_SPARC_GOTDATA_OP_HIX22:
-	      case R_SPARC_GOTDATA_OP_LOX10:
-		tls_type = GOT_NORMAL;
-		break;
 	      case R_SPARC_TLS_GD_HI22:
 	      case R_SPARC_TLS_GD_LO10:
 		tls_type = GOT_TLS_GD;
@@ -1546,6 +1525,9 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 	      case R_SPARC_TLS_IE_LO10:
 		tls_type = GOT_TLS_IE;
 		break;
+	      default:
+		tls_type = GOT_NORMAL;
+		break;
 	      }
 
 	    if (h != NULL)
@@ -1573,26 +1555,23 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 		    _bfd_sparc_elf_local_got_tls_type (abfd)
 		      = (char *) (local_got_refcounts + symtab_hdr->sh_info);
 		  }
-		switch (r_type)
-		  {
-		  case R_SPARC_GOTDATA_OP_HIX22:
-		  case R_SPARC_GOTDATA_OP_LOX10:
-		    break;
 
-		  default:
-		    local_got_refcounts[r_symndx] += 1;
-		    break;
-		  }
+		if (r_type != R_SPARC_GOTDATA_OP_HIX22
+		    && r_type != R_SPARC_GOTDATA_OP_LOX10)
+		  local_got_refcounts[r_symndx] += 1;
+
 		old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
 	      }
 
-	    /* If a TLS symbol is accessed using IE at least once,
-	       there is no point to use dynamic model for it.  */
-	    if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
-		&& (old_tls_type != GOT_TLS_GD
-		    || tls_type != GOT_TLS_IE))
+	    /* If a TLS symbol is accessed using IE at least once, there is no point
+	       in using the dynamic model for it.  */
+	    if (old_tls_type != tls_type)
 	      {
-		if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
+		if (old_tls_type == GOT_UNKNOWN)
+		  ;
+		else if (old_tls_type == GOT_TLS_GD && tls_type == GOT_TLS_IE)
+		  ;
+		else if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
 		  tls_type = old_tls_type;
 		else
 		  {
@@ -1602,10 +1581,7 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 		       abfd, h ? h->root.root.string : "<local>");
 		    return FALSE;
 		  }
-	      }
 
-	    if (old_tls_type != tls_type)
-	      {
 		if (h != NULL)
 		  _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
 		else
@@ -1613,11 +1589,9 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 	      }
 	  }
 
-	  if (htab->elf.sgot == NULL)
-	    {
-	      if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
-		return FALSE;
-	    }
+	  if (!htab->elf.sgot
+	      && !_bfd_elf_create_got_section (htab->elf.dynobj, info))
+	    return FALSE;
 
 	  if (eh != NULL)
 	    eh->has_got_reloc = 1;
@@ -1625,28 +1599,25 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 
 	case R_SPARC_TLS_GD_CALL:
 	case R_SPARC_TLS_LDM_CALL:
-	  if (bfd_link_pic (info))
-	    {
-	      /* These are basically R_SPARC_TLS_WPLT30 relocs against
-		 __tls_get_addr.  */
-	      h = (struct elf_link_hash_entry *)
-		  bfd_link_hash_lookup (info->hash, "__tls_get_addr", TRUE,
-					FALSE, TRUE);
-	    }
-	  else
+	  if (bfd_link_executable (info))
 	    break;
+
+	  /* Essentially R_SPARC_WPLT30 relocs against __tls_get_addr.  */
+	  h = (struct elf_link_hash_entry *)
+	       bfd_link_hash_lookup (info->hash, "__tls_get_addr", TRUE,
+				     FALSE, TRUE);
 	  /* Fall through */
 
-	case R_SPARC_PLT32:
 	case R_SPARC_WPLT30:
+	case R_SPARC_PLT32:
+	case R_SPARC_PLT64:
 	case R_SPARC_HIPLT22:
 	case R_SPARC_LOPLT10:
 	case R_SPARC_PCPLT32:
 	case R_SPARC_PCPLT22:
 	case R_SPARC_PCPLT10:
-	case R_SPARC_PLT64:
-	  /* This symbol requires a procedure linkage table entry.  We
-	     actually build the entry in adjust_dynamic_symbol,
+	  /* This symbol requires a procedure linkage table entry.
+	     We actually build the entry in adjust_dynamic_symbol,
 	     because this might be a case of linking PIC code without
 	     linking in any dynamic objects, in which case we don't
 	     need to generate a procedure linkage table after all.  */
@@ -1659,7 +1630,7 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 		     reloc for a local symbol if you assemble a call from
 		     one section to another when using -K pic.  We treat
 		     it as WDISP30.  */
-		  if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
+		  if (r_type == R_SPARC_PLT32)
 		    goto r_sparc_plt32;
 		  break;
 		}
@@ -1675,14 +1646,9 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 
 	  h->needs_plt = 1;
 
-	  {
-	    int this_r_type;
+	  if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
+	    goto r_sparc_plt32;
 
-	    this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
-	    if (this_r_type == R_SPARC_PLT32
-		|| this_r_type == R_SPARC_PLT64)
-	      goto r_sparc_plt32;
-	  }
 	  h->plt.refcount += 1;
 
 	  eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
@@ -1886,9 +1852,7 @@ _bfd_sparc_elf_gc_mark_hook (asection *sec,
 	return NULL;
       }
 
-  /* FIXME: The test here, in check_relocs and in relocate_section
-     dealing with TLS optimization, ought to be !bfd_link_executable (info).  */
-  if (bfd_link_pic (info))
+  if (!bfd_link_executable (info))
     {
       switch (SPARC_ELF_R_TYPE (rel->r_info))
 	{
@@ -2227,7 +2191,7 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
   /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
      make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry.  */
   if (h->got.refcount > 0
-      && !bfd_link_pic (info)
+      && bfd_link_executable (info)
       && h->dynindx == -1
       && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
     h->got.offset = (bfd_vma) -1;
@@ -2963,8 +2927,8 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
 	  bfd_set_error (bfd_error_bad_value);
 	  return FALSE;
 	}
-      howto = _bfd_sparc_elf_howto_table + r_type;
 
+      howto = _bfd_sparc_elf_howto_table + r_type;
       r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
       h = NULL;
       sym = NULL;
@@ -3131,8 +3095,7 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
 	}
 
       eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
-      resolved_to_zero = (eh != NULL
-			  && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
+      resolved_to_zero = eh && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
 
       switch (r_type)
 	{
@@ -3378,8 +3341,7 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
 	case R_SPARC_H34:
 	case R_SPARC_UA64:
 	r_sparc_plt32:
-	  if ((input_section->flags & SEC_ALLOC) == 0
-	      || is_vxworks_tls)
+	  if ((input_section->flags & SEC_ALLOC) == 0 || is_vxworks_tls)
 	    break;
 
 	  /* Copy dynamic function pointer relocations.  Don't generate
@@ -3551,40 +3513,19 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
 	  break;
 
 	case R_SPARC_TLS_GD_HI22:
-	  if (! ABI_64_P (input_bfd)
-	      && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
-	    {
-	      /* R_SPARC_REV32 used the same reloc number as
-		 R_SPARC_TLS_GD_HI22.  */
-	      r_type = R_SPARC_REV32;
-	      break;
-	    }
-	  /* Fall through */
-
 	case R_SPARC_TLS_GD_LO10:
 	case R_SPARC_TLS_IE_HI22:
 	case R_SPARC_TLS_IE_LO10:
-	  r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
-	  tls_type = GOT_UNKNOWN;
-	  if (h == NULL && local_got_offsets)
+	  r_type = sparc_elf_tls_transition (info, input_bfd, r_type,
+					     h == NULL || h->dynindx == -1);
+	  if (r_type == R_SPARC_REV32)
+	    break;
+	  if (h != NULL)
+	    tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
+	  else if (local_got_offsets)
 	    tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
-	  else if (h != NULL)
-	    {
-	      tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
-	      if (!bfd_link_pic (info)
-		  && h->dynindx == -1
-		  && tls_type == GOT_TLS_IE)
-		switch (SPARC_ELF_R_TYPE (rel->r_info))
-		  {
-		  case R_SPARC_TLS_GD_HI22:
-		  case R_SPARC_TLS_IE_HI22:
-		    r_type = R_SPARC_TLS_LE_HIX22;
-		    break;
-		  default:
-		    r_type = R_SPARC_TLS_LE_LOX10;
-		    break;
-		  }
-	    }
+	  else
+	    tls_type = GOT_UNKNOWN;
 	  if (tls_type == GOT_TLS_IE)
 	    switch (r_type)
 	      {
@@ -3695,7 +3636,8 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
 
 	case R_SPARC_TLS_LDM_HI22:
 	case R_SPARC_TLS_LDM_LO10:
-	  if (! bfd_link_pic (info))
+	  /* LD -> LE */
+	  if (bfd_link_executable (info))
 	    {
 	      bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
 	      continue;
@@ -3706,43 +3648,42 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
 
 	case R_SPARC_TLS_LDO_HIX22:
 	case R_SPARC_TLS_LDO_LOX10:
-	  if (bfd_link_pic (info))
+	  /* LD -> LE */
+	  if (bfd_link_executable (info))
+	    {
+	      if (r_type == R_SPARC_TLS_LDO_HIX22)
+		r_type = R_SPARC_TLS_LE_HIX22;
+	      else
+		r_type = R_SPARC_TLS_LE_LOX10;
+	    }
+	  else
 	    {
 	      relocation -= dtpoff_base (info);
 	      break;
 	    }
-
-	  r_type = (r_type == R_SPARC_TLS_LDO_HIX22
-		    ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
 	  /* Fall through.  */
 
 	case R_SPARC_TLS_LE_HIX22:
 	case R_SPARC_TLS_LE_LOX10:
-	  if (bfd_link_pic (info))
+	  if (!bfd_link_executable (info))
 	    {
 	      Elf_Internal_Rela outrel;
-	      bfd_boolean skip;
-
-	      BFD_ASSERT (sreloc != NULL);
-	      skip = FALSE;
-	      outrel.r_offset =
-		_bfd_elf_section_offset (output_bfd, info, input_section,
-					 rel->r_offset);
-	      if (outrel.r_offset == (bfd_vma) -1)
-		skip = TRUE;
-	      else if (outrel.r_offset == (bfd_vma) -2)
-		skip = TRUE;
-	      outrel.r_offset += (input_section->output_section->vma
-				  + input_section->output_offset);
-	      if (skip)
+	      bfd_vma offset
+		= _bfd_elf_section_offset (output_bfd, info, input_section,
+					   rel->r_offset);
+	      if (offset == (bfd_vma) -1 || offset == (bfd_vma) -2)
 		memset (&outrel, 0, sizeof outrel);
 	      else
 		{
+		  outrel.r_offset = offset
+				    + input_section->output_section->vma
+				    + input_section->output_offset;
 		  outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
-		  outrel.r_addend = relocation - dtpoff_base (info)
-				    + rel->r_addend;
+		  outrel.r_addend
+		    = relocation - dtpoff_base (info) + rel->r_addend;
 		}
 
+	      BFD_ASSERT (sreloc != NULL);
 	      sparc_elf_append_rela (output_bfd, sreloc, &outrel);
 	      continue;
 	    }
@@ -3750,7 +3691,8 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
 	  break;
 
 	case R_SPARC_TLS_LDM_CALL:
-	  if (! bfd_link_pic (info))
+	  /* LD -> LE */
+	  if (bfd_link_executable (info))
 	    {
 	      /* mov %g0, %o0 */
 	      bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
@@ -3759,20 +3701,22 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
 	  /* Fall through */
 
 	case R_SPARC_TLS_GD_CALL:
-	  tls_type = GOT_UNKNOWN;
-	  if (h == NULL && local_got_offsets)
+	  if (h != NULL)
+	    tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
+	  else if (local_got_offsets)
 	    tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
-	  else if (h != NULL)
-	    tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
-	  if (! bfd_link_pic (info)
+	  else
+	    tls_type = GOT_UNKNOWN;
+	  /* GD -> IE or LE */
+	  if (bfd_link_executable (info)
 	      || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
 	    {
 	      Elf_Internal_Rela *rel2;
 	      bfd_vma insn;
 
-	      if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
+	      /* GD -> LE */
+	      if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
 		{
-		  /* GD -> LE */
 		  bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
 		  continue;
 		}
@@ -3835,12 +3779,14 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
 	  goto r_sparc_wplt30;
 
 	case R_SPARC_TLS_GD_ADD:
-	  tls_type = GOT_UNKNOWN;
-	  if (h == NULL && local_got_offsets)
+	  if (h != NULL)
+	    tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
+	  else if (local_got_offsets)
 	    tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
-	  else if (h != NULL)
-	    tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
-	  if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
+	  else
+	    tls_type = GOT_UNKNOWN;
+	  /* GD -> IE or LE */
+	  if (bfd_link_executable (info) || tls_type == GOT_TLS_IE)
 	    {
 	      /* add %reg1, %reg2, %reg3, %tgd_add(foo)
 		 changed into IE:
@@ -3848,21 +3794,23 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
 		 or LE:
 		 add %g7, %reg2, %reg3.  */
 	      bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
-	      if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
-		relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
-	      else
+	      if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
 		relocation = (insn & ~0x7c000) | 0x1c000;
+	      else
+		relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
 	      bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
 	    }
 	  continue;
 
 	case R_SPARC_TLS_LDM_ADD:
-	  if (! bfd_link_pic (info))
+	  /* LD -> LE */
+	  if (bfd_link_executable (info))
 	    bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
 	  continue;
 
 	case R_SPARC_TLS_LDO_ADD:
-	  if (! bfd_link_pic (info))
+	  /* LD -> LE */
+	  if (bfd_link_executable (info))
 	    {
 	      /* Change rs1 into %g7.  */
 	      bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
@@ -3873,7 +3821,8 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
 
 	case R_SPARC_TLS_IE_LD:
 	case R_SPARC_TLS_IE_LDX:
-	  if (! bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
+	  /* IE -> LE */
+	  if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
 	    {
 	      bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
 	      int rs2 = insn & 0x1f;