Pass section when available to bfd_octets_per_byte

and other tidies.  I think it's better to default to passing the
section to bfd_octets_per_byte, even in cases where we know it won't
make a difference.

A number of the coff reloc functions used bfd_octets_per_byte wrongly,
not factoring it into the offset into the data buffer.  As it happens,
the targets using those files always had bfd_octets_per_byte equal to
one, so there wasn't any detectable wrong behaviour.  However, it is
wrong in the source and might cause trouble for anyone creating a new
target.  Besides fixing that, the patch also defines OCTETS_PER_BYTE
as one in target files where that is appropriate.

bfd/
	* archures.c (bfd_octets_per_byte): Tail call
	bfd_arch_mach_octets_per_byte.
	* coff-arm.c (OCTETS_PER_BYTE): Define.
	(coff_arm_reloc): Introduce new "octets" temp.  Use OCTETS_PER_BYTE
	with section.  Correct "addr".  Remove ATTRIBUTE_UNUSED.
	* coff-i386.c (coff_i386_reloc): Similarly.
	* coff-mips.c (mips_reflo_reloc): Similarly.
	* coff-x86_64.c (coff_amd64_reloc): Similarly.
	* elf32-msp430.c (OCTETS_PER_BYTE): Define.
	(rl78_sym_diff_handler): Use OCTETS_PER_BYTE, with section.
	* elf32-nds32.c (nds32_elf_get_relocated_section_contents): Similarly.
	* elf32-ppc.c (ppc_elf_addr16_ha_reloc): Similarly.
	* elf32-pru.c (pru_elf32_do_ldi32_relocate): Similarly.
	* elf32-s12z.c (opru18_reloc): Similarly.
	* elf32-sh.c (sh_elf_reloc): Similarly.
	* elf32-spu.c (spu_elf_rel9): Similarly.
	* elf32-xtensa.c (bfd_elf_xtensa_reloc): Similarly.
	* elf64-ppc.c (ppc64_elf_ha_reloc, ppc64_elf_brtaken_reloc),
	(ppc64_elf_toc64_reloc): Similarly.
	* bfd.c (bfd_get_section_limit): Pass section to bfd_octets_per_byte.
	* cofflink.c (_bfd_coff_link_input_bfd),
	(_bfd_coff_reloc_link_order): Likewise.
	* elf.c (_bfd_elf_section_offset): Likewise.
	* elflink.c (resolve_section, bfd_elf_perform_complex_relocation),
	(elf_link_input_bfd, elf_reloc_link_order, elf_fixup_link_order),
	(bfd_elf_final_link): Likewise.
	* elf.c (_bfd_elf_make_section_from_shdr): Don't strncmp twice
	to set SEC_ELF_OCTETS.
	* reloc.c (bfd_perform_relocation): Tidy SEC_ELF_OCTETS special case.
	(bfd_install_relocation): Likewise.
	(_bfd_final_link_relocate): Don't recalculate octets.
	* syms.c (_bfd_stab_section_find_nearest_line): Introduc new
	"octets" temp.
	* bfd-in2.h: Regenerate.
ld/
	* ldexp.c (fold_name): Pass section to bfd_octets_per_byte.
	* ldlang.c (init_opb): Don't call bfd_arch_mach_octets_per_byte
	unnecessarily.

1 files changed, 5 insertions, 7 deletions

diff --git a/bfd/syms.c b/bfd/syms.c
index ec7d2c8..f02cae9 100644
--- a/bfd/syms.c
+++ b/bfd/syms.c
@@ -1078,20 +1078,21 @@ _bfd_stab_section_find_nearest_line (bfd *abfd,
 	      arelent *r;
 	      unsigned long val;
 	      asymbol *sym;
+	      bfd_size_type octets;
 
 	      r = *pr;
 	      /* Ignore R_*_NONE relocs.  */
 	      if (r->howto->dst_mask == 0)
 		continue;
 
+	      octets = r->address * bfd_octets_per_byte (abfd, NULL);
 	      if (r->howto->rightshift != 0
 		  || r->howto->size != 2
 		  || r->howto->bitsize != 32
 		  || r->howto->pc_relative
 		  || r->howto->bitpos != 0
 		  || r->howto->dst_mask != 0xffffffff
-		  || (r->address * bfd_octets_per_byte (abfd, NULL) + 4
-		      > stabsize))
+		  || octets + 4 > stabsize)
 		{
 		  _bfd_error_handler
 		    (_("unsupported .stab relocation"));
@@ -1101,14 +1102,11 @@ _bfd_stab_section_find_nearest_line (bfd *abfd,
 		  return FALSE;
 		}
 
-	      val = bfd_get_32 (abfd, info->stabs
-				+ (r->address
-				   * bfd_octets_per_byte (abfd, NULL)));
+	      val = bfd_get_32 (abfd, info->stabs + octets);
 	      val &= r->howto->src_mask;
 	      sym = *r->sym_ptr_ptr;
 	      val += sym->value + sym->section->vma + r->addend;
-	      bfd_put_32 (abfd, (bfd_vma) val, info->stabs
-			  + r->address * bfd_octets_per_byte (abfd, NULL));
+	      bfd_put_32 (abfd, (bfd_vma) val, info->stabs + octets);
 	    }
 	}