PR 3958

bfd/
	* elf-bfd.h (RELOC_FOR_GLOBAL_SYMBOL): No error on relocatable link.
	(elf_discarded_section): Move..
	* bfd-in.h: ..to here.
	* bfd-in2.h: Regenerate.
	* elflink.c (elf_link_input_bfd): Don't zap relocs against symbols
	from discarded sections before relocate_section has done its job.
	* reloc.c (bfd_generic_get_relocated_section_contents): Handle
	relocs against symbols from discarded sections.
	* elf-hppa.h (elf_hppa_howto_table): Set size.  Set dst_mask on
	SECREL32.
	(elf_hppa_relocate_section): Handle relocatable link after setting
	sec, sym, h etc. for final link.  Squash error messages for
	relocatable link.  Clear section contents for relocs against
	symbols in discarded sections, and zero reloc.  Remove existing
	zero r_symndx code.
	* elf-m10200.c (mn10200_elf_relocate_section): Likewise.
	* elf-m10300.c (mn10300_elf_relocate_section): Likewise.
	* elf32-arm.c (elf32_arm_relocate_section): Likewise.
	* elf32-avr.c (elf32_avr_relocate_section): Likewise.
	* elf32-bfin.c (bfinfdpic_relocate_section): Likewise.
	(bfin_relocate_section): Likewise.
	* elf32-cr16c.c (elf32_cr16c_relocate_section): Likewise.
	* elf32-cris.c (cris_elf_relocate_section): Likewise.
	* elf32-crx.c (elf32_crx_relocate_section): Likewise.
	* elf32-d10v.c (elf32_d10v_relocate_section): Likewise.
	* elf32-fr30.c (fr30_elf_relocate_section): Likewise.
	* elf32-frv.c (elf32_frv_relocate_section): Likewise.
	* elf32-h8300.c (elf32_h8_relocate_section): Likewise.
	* elf32-hppa.c (elf32_hppa_relocate_section): Likewise.
	* elf32-i370.c (i370_elf_relocate_section): Likewise.
	* elf32-i386.c (elf_i386_relocate_section): Likewise.
	* elf32-i860.c (elf32_i860_relocate_section): Likewise.
	* elf32-ip2k.c (ip2k_elf_relocate_section): Likewise.
	* elf32-iq2000.c (iq2000_elf_relocate_section): Likewise.
	* elf32-m32c.c (m32c_elf_relocate_section): Likewise.
	* elf32-m32r.c (m32r_elf_relocate_section): Likewise.
	* elf32-m68hc1x.c (elf32_m68hc11_check_relocs): Likewise.
	* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
	* elf32-mcore.c (mcore_elf_relocate_section): Likewise.
	* elf32-mep.c (mep_elf_relocate_section): Likewise.
	* elf32-msp430.c (elf32_msp430_relocate_section): Likewise.
	* elf32-mt.c (mt_elf_relocate_section): Likewise.
	* elf32-openrisc.c (openrisc_elf_relocate_section): Likewise.
	* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
	* elf32-s390.c (elf_s390_relocate_section): Likewise.
	* elf32-score.c (_bfd_score_elf_relocate_section): Likewise.
	* elf32-sh.c (sh_elf_relocate_section): Likewise.
	* elf32-spu.c (spu_elf_relocate_section): Likewise.
	* elf32-v850.c (v850_elf_relocate_section): Likewise.
	* elf32-vax.c (elf_vax_relocate_section): Likewise.
	* elf32-xc16x.c (elf32_xc16x_relocate_section): Likewise.
	* elf32-xstormy16.c (xstormy16_elf_relocate_section): Likewise.
	* elf32-xtensa.c (elf_xtensa_relocate_section): Likewise.
	* elf64-alpha.c (elf64_alpha_relocate_section_r): Likewise.
	(elf64_alpha_relocate_section): Likewise.
	* elf64-mmix.c (mmix_elf_relocate_section): Likewise.
	* elf64-ppc.c (ppc64_elf_relocate_section): Likewise.
	* elf64-s390.c (elf_s390_relocate_section): Likewise.
	* elf64-sh64.c (sh_elf64_relocate_section): Likewise.
	* elf64-x86-64.c (elf64_x86_64_relocate_section): Likewise.
	* elfxx-ia64.c (elfNN_ia64_relocate_section): Likewise.
	* elfxx-mips.c (_bfd_mips_elf_relocate_section): Likewise.
	* elfxx-sparc.c (_bfd_sparc_elf_relocate_section): Likewise.

	* elf32-arm.c (elf32_arm_relocate_section): Always adjust section
	symbols for relocatable link.  Don't use always-zero st_value.
	(elf_backend_rela_normal): Don't define.
	* elf32-bfin.c (bfinfdpic_relocate_section): Use
	RELOC_FOR_GLOBAL_SYMBOL.
	* elf32-frv.c (elf32_frv_relocate_section): Likewise.
	* elf32-d10v.c (elf32_d10v_relocate_section): Combine SEC_MERGE
	section symbol adjustments with same for relocatable link.
	* elf32-i386.c (elf_i386_relocate_section): Likewise.
	* elf32-m68hc1x.c (m68hc11_get_relocation_value): Move..
	(elf32_m68hc11_check_relocs): ..to here.
	* elf32-score.c (score_elf_final_link_relocate): Remove zero
	r_symndx code.
	* elfxx-mips.c (mips_elf_calculate_relocation): Likewise.

ld/testsuite/
	* ld-elf/linkonce1.d: New.
	* ld-elf/linkonce1a.s: New.
	* ld-elf/linkonce1b.s: New.
	* ld-elf/linkonce2.d: New.
	* ld-i386/pcrel16abs.d: New.
	* ld-i386/pcrel16abs.s: New.
	* ld-i386/i386.exp: Run it.

1 files changed, 34 insertions, 26 deletions

diff --git a/bfd/elf64-sh64.c b/bfd/elf64-sh64.c
index 18fa063..8f7ec66 100644
--- a/bfd/elf64-sh64.c
+++ b/bfd/elf64-sh64.c
@@ -1,5 +1,5 @@
 /* SuperH SH64-specific support for 64-bit ELF
-   Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006
+   Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
    Free Software Foundation, Inc.
 
    This file is part of BFD, the Binary File Descriptor library.
@@ -1487,10 +1487,10 @@ sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
 
       howto = sh_elf64_howto_table + r_type;
 
-      /* This is a final link.  */
       h = NULL;
       sym = NULL;
       sec = NULL;
+      relocation = 0;
       if (r_symndx < symtab_hdr->sh_info)
 	{
 	  sym = local_syms + r_symndx;
@@ -1509,13 +1509,15 @@ sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
 	      _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
 	      input_bfd, input_section, rel->r_offset));
 
-	  if (info->relocatable)
+	  if (sec != NULL && elf_discarded_section (sec))
+	    /* Handled below.  */
+	    ;
+	  else if (info->relocatable)
 	    {
 	      /* This is a relocatable link.  We don't have to change
 		 anything, unless the reloc is against a section symbol,
 		 in which case we have to adjust according to where the
 		 section symbol winds up in the output section.  */
-	      sym = local_syms + r_symndx;
 	      if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
 		goto final_link_relocate;
 
@@ -1554,12 +1556,6 @@ sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
 	{
 	  /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ?  */
 
-	  /* Section symbols are never (?) placed in the hash table, so
-	     we can just ignore hash relocations when creating a
-	     relocatable object file.  */
-	  if (info->relocatable)
-	    continue;
-
 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
 	  while (h->root.type == bfd_link_hash_indirect
 		 || h->root.type == bfd_link_hash_warning)
@@ -1619,8 +1615,17 @@ sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
 		  || (sec->output_section == NULL
 		      && ((input_section->flags & SEC_DEBUGGING) != 0
 			  && h->def_dynamic)))
-		relocation = 0;
-	      else if (sec->output_section == NULL)
+		;
+	      else if (sec->output_section != NULL)
+		relocation = ((h->root.u.def.value
+			       + sec->output_section->vma
+			       + sec->output_offset)
+			      /* A STO_SH5_ISA32 causes a "bitor 1" to the
+				 symbol value, unless we've seen
+				 STT_DATALABEL on the way to it.  */
+			      | ((h->other & STO_SH5_ISA32) != 0
+				 && ! seen_stt_datalabel));
+	      else if (!info->relocatable)
 		{
 		  (*_bfd_error_handler)
 		    (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
@@ -1629,24 +1634,14 @@ sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
 		     (long) rel->r_offset,
 		     howto->name,
 		     h->root.root.string);
-		  relocation = 0;
 		}
-	      else
-		relocation = ((h->root.u.def.value
-			       + sec->output_section->vma
-			       + sec->output_offset)
-			      /* A STO_SH5_ISA32 causes a "bitor 1" to the
-				 symbol value, unless we've seen
-				 STT_DATALABEL on the way to it.  */
-			      | ((h->other & STO_SH5_ISA32) != 0
-				 && ! seen_stt_datalabel));
 	    }
 	  else if (h->root.type == bfd_link_hash_undefweak)
-	    relocation = 0;
+	    ;
 	  else if (info->unresolved_syms_in_objects == RM_IGNORE
 		   && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
-	    relocation = 0;
-	  else
+	    ;
+	  else if (!info->relocatable)
 	    {
 	      if (! ((*info->callbacks->undefined_symbol)
 		     (info, h->root.root.string, input_bfd,
@@ -1654,10 +1649,23 @@ sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
 		      (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
 		       || ELF_ST_VISIBILITY (h->other)))))
 		return FALSE;
-	      relocation = 0;
 	    }
 	}
 
+      if (sec != NULL && elf_discarded_section (sec))
+	{
+	  /* For relocs against symbols from removed linkonce sections,
+	     or sections discarded by a linker script, we just want the
+	     section contents zeroed.  Avoid any special processing.  */
+	  _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
+	  rel->r_info = 0;
+	  rel->r_addend = 0;
+	  continue;
+	}
+
+      if (info->relocatable)
+	continue;
+
       disp = (relocation
 	      - input_section->output_section->vma
 	      - input_section->output_offset