Committed: Fix more set but not used warnings

[Nick Clifton <nickc at redhat dot com>]

Hi Guys,

  I am applying the patch below to fix a couple more "set but not used"
  warning messages exposed by bootstrapping GCC from the current FSF
  mainline sources - this time for an x64_86 host.

Cheers
  Nick

bfd/ChangeLog
2010-04-19  Nick Clifton  <nickc@redhat.com>

	* archive64.c (bfd_elf64_archive_slurp_armap): Remove unused
	arhdrpos variable.
	* elf64-x86-64.c (elf64_x86_64_relocate_section): Add unused
	attribute to warned variable.  Remove unused val, type and type2
	variables.

Index: bfd/archive64.c
===================================================================
RCS file: /cvs/src/src/bfd/archive64.c,v
retrieving revision 1.12
diff -c -3 -p -r1.12 archive64.c
*** bfd/archive64.c	9 Sep 2009 21:38:57 -0000	1.12
--- bfd/archive64.c	19 Apr 2010 08:41:56 -0000
*************** bfd_elf64_archive_slurp_armap (bfd *abfd
*** 43,49 ****
  {
    struct artdata *ardata = bfd_ardata (abfd);
    char nextname[17];
-   file_ptr arhdrpos;
    bfd_size_type i, parsed_size, nsymz, stringsize, carsym_size, ptrsize;
    struct areltdata *mapdata;
    bfd_byte int_buf[8];
--- 43,48 ----
*************** bfd_elf64_archive_slurp_armap (bfd *abfd
*** 55,61 ****
    ardata->symdefs = NULL;
  
    /* Get the name of the first element.  */
-   arhdrpos = bfd_tell (abfd);
    i = bfd_bread (nextname, 16, abfd);
    if (i == 0)
      return TRUE;
--- 54,59 ----
Index: bfd/elf64-x86-64.c
===================================================================
RCS file: /cvs/src/src/bfd/elf64-x86-64.c,v
retrieving revision 1.193
diff -c -3 -p -r1.193 elf64-x86-64.c
*** bfd/elf64-x86-64.c	5 Mar 2010 19:48:55 -0000	1.193
--- bfd/elf64-x86-64.c	19 Apr 2010 08:41:56 -0000
*************** elf64_x86_64_relocate_section (bfd *outp
*** 2676,2682 ****
  	}
        else
  	{
! 	  bfd_boolean warned;
  
  	  RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
  				   r_symndx, symtab_hdr, sym_hashes,
--- 2676,2682 ----
  	}
        else
  	{
! 	  bfd_boolean warned ATTRIBUTE_UNUSED;
  
  	  RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
  				   r_symndx, symtab_hdr, sym_hashes,
*************** elf64_x86_64_relocate_section (bfd *outp
*** 3319,3331 ****
  		     leaq x@tlsdesc(%rip), %rax
  
  		     Change it to:
! 		     movl $x@tpoff, %rax
! 		   */
  
! 		  unsigned int val, type, type2;
  
  		  type = bfd_get_8 (input_bfd, contents + roff - 3);
- 		  type2 = bfd_get_8 (input_bfd, contents + roff - 2);
  		  val = bfd_get_8 (input_bfd, contents + roff - 1);
  		  bfd_put_8 (output_bfd, 0x48 | ((type >> 2) & 1),
  			     contents + roff - 3);
--- 3319,3329 ----
  		     leaq x@tlsdesc(%rip), %rax
  
  		     Change it to:
! 		     movl $x@tpoff, %rax.  */
  
! 		  unsigned int val, type;
  
  		  type = bfd_get_8 (input_bfd, contents + roff - 3);
  		  val = bfd_get_8 (input_bfd, contents + roff - 1);
  		  bfd_put_8 (output_bfd, 0x48 | ((type >> 2) & 1),
  			     contents + roff - 3);
*************** elf64_x86_64_relocate_section (bfd *outp
*** 3554,3567 ****
  		     leaq x@tlsdesc(%rip), %rax
  
  		     Change it to:
! 		     movq x@gottpoff(%rip), %rax # before xchg %ax,%ax
! 		   */
! 
! 		  unsigned int val, type, type2;
! 
! 		  type = bfd_get_8 (input_bfd, contents + roff - 3);
! 		  type2 = bfd_get_8 (input_bfd, contents + roff - 2);
! 		  val = bfd_get_8 (input_bfd, contents + roff - 1);
  
  		  /* Now modify the instruction as appropriate. To
  		     turn a leaq into a movq in the form we use it, it
--- 3552,3558 ----
  		     leaq x@tlsdesc(%rip), %rax
  
  		     Change it to:
! 		     movq x@gottpoff(%rip), %rax # before xchg %ax,%ax.  */
  
  		  /* Now modify the instruction as appropriate. To
  		     turn a leaq into a movq in the form we use it, it
*************** elf64_x86_64_relocate_section (bfd *outp
*** 3586,3597 ****
  		     call *(%rax)
  
  		     Change it to:
! 		     xchg %ax,%ax.  */
! 
! 		  unsigned int val, type;
  
- 		  type = bfd_get_8 (input_bfd, contents + roff);
- 		  val = bfd_get_8 (input_bfd, contents + roff + 1);
  		  bfd_put_8 (output_bfd, 0x66, contents + roff);
  		  bfd_put_8 (output_bfd, 0x90, contents + roff + 1);
  		  continue;
--- 3577,3584 ----
  		     call *(%rax)
  
  		     Change it to:
! 		     xchg %ax, %ax.  */
  
  		  bfd_put_8 (output_bfd, 0x66, contents + roff);
  		  bfd_put_8 (output_bfd, 0x90, contents + roff + 1);
  		  continue;