2009-08-05  Nathan Sidwell  <nathan@codesourcery.com>

	* elf32-arm.c (elf32_arm_size_stubs): Don't die on undefined local
	symbols.
	(elf32_arm_final_link_relocate): Treat local undefined symbols the
	same as global undefined symbols.
	(elf32_arm_relocate_section): Give an error for local undefined
	non-weak symbols, unless the reloc will not use the symbol.

Index: bfd/elf32-arm.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-arm.c,v
retrieving revision 1.207
diff -c -3 -p -r1.207 elf32-arm.c
*** bfd/elf32-arm.c	5 Aug 2009 12:36:14 -0000	1.207
--- bfd/elf32-arm.c	5 Aug 2009 16:11:00 -0000
*************** elf32_arm_size_stubs (bfd *output_bfd,
*** 4366,4371 ****
--- 4366,4376 ----
  		      sym = local_syms + r_indx;
  		      hdr = elf_elfsections (input_bfd)[sym->st_shndx];
  		      sym_sec = hdr->bfd_section;
+ 		      if (!sym_sec)
+ 			/* This is an undefined symbol.  It can never
+ 			   be resolved. */
+ 			continue;
+ 		  
  		      if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
  			sym_value = sym->st_value;
  		      destination = (sym_value + irela->r_addend
*************** elf32_arm_final_link_relocate (reloc_how
*** 6951,6957 ****
  	case R_ARM_PC24:	  /* Arm B/BL instruction.  */
  	case R_ARM_PLT32:
  	  {
- 	  bfd_vma from;
  	  bfd_signed_vma branch_offset;
  	  struct elf32_arm_stub_hash_entry *stub_entry = NULL;
  
--- 6956,6961 ----
*************** elf32_arm_final_link_relocate (reloc_how
*** 6988,6993 ****
--- 6992,6999 ----
  	      || r_type == R_ARM_JUMP24
  	      || r_type == R_ARM_PLT32)
  	    {
+ 	      bfd_vma from;
+ 	      
  	      /* If the call goes through a PLT entry, make sure to
  		 check distance to the right destination address.  */
  	      if (h != NULL && splt != NULL && h->plt.offset != (bfd_vma) -1)
*************** elf32_arm_final_link_relocate (reloc_how
*** 7056,7064 ****
  	  signed_addend >>= howto->rightshift;
  
  	  /* A branch to an undefined weak symbol is turned into a jump to
! 	     the next instruction unless a PLT entry will be created.  */
! 	  if (h && h->root.type == bfd_link_hash_undefweak
! 	      && !(splt != NULL && h->plt.offset != (bfd_vma) -1))
  	    {
  	      value = (bfd_get_32 (input_bfd, hit_data) & 0xf0000000)
  		      | 0x0affffff;
--- 7062,7072 ----
  	  signed_addend >>= howto->rightshift;
  
  	  /* A branch to an undefined weak symbol is turned into a jump to
! 	     the next instruction unless a PLT entry will be created.
! 	     Do the same for local undefined symbols.  */
! 	  if (h ? (h->root.type == bfd_link_hash_undefweak
! 		   && !(splt != NULL && h->plt.offset != (bfd_vma) -1))
! 	      : bfd_is_und_section (sym_sec))
  	    {
  	      value = (bfd_get_32 (input_bfd, hit_data) & 0xf0000000)
  		      | 0x0affffff;
*************** elf32_arm_relocate_section (bfd *       
*** 8704,8709 ****
--- 8712,8736 ----
  	  sym = local_syms + r_symndx;
  	  sym_type = ELF32_ST_TYPE (sym->st_info);
  	  sec = local_sections[r_symndx];
+ 
+ 	  /* An object file might have a reference to a local
+ 	     undefined symbol.  This is a daft object file, but we
+ 	     should at least do something about it.  V4BX & NONE
+ 	     relocations do not use the symbol and are explicitly
+ 	     allowed to use the undefined symbol, so allow those.  */
+ 	  if (r_type != R_ARM_V4BX
+ 	      && r_type != R_ARM_NONE
+ 	      && bfd_is_und_section (sec)
+ 	      && ELF_ST_BIND (sym->st_info) != STB_WEAK)
+ 	    {
+ 	      if (!info->callbacks->undefined_symbol
+ 		  (info, bfd_elf_string_from_elf_section
+ 		   (input_bfd, symtab_hdr->sh_link, sym->st_name),
+ 		   input_bfd, input_section,
+ 		   rel->r_offset, TRUE))
+ 		return FALSE;
+ 	    }
+ 	  
  	  if (globals->use_rel)
  	    {
  	      relocation = (sec->output_section->vma