Fix some places where octet to byte conversions are needed.

	PR 19713
	* elf.c (_bfd_elf_section_offset): Ensure that the returned offset
	uses bytes not octets.
	* elflink.c (resolve_section): Likewise.
	Add a bfd parameter.
	(eval_section): Pass the input_bfd to resolve_section.
	(bfd_elf_perform_complex_relocation): Convert byte offset to
	octets before read and writing values.
	(elf_link_input_bfd): Add byte to octet conversions.
	(elf_reloc_link_order): Likewise.
	(elf_fixup_link_order): Likewise.
	(bfd_elf_final_link): Likewise.
	* reloc.c (_bfd_final_link_relocate): Likewise.
	* syms.c (_bfd_stab_section_find_nearest_line): Likewise.

1 files changed, 12 insertions, 1 deletions

diff --git a/bfd/elf.c b/bfd/elf.c
index 1013644..90319a2 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -10464,6 +10464,12 @@ _bfd_elf_rel_local_sym (bfd *abfd,
 				     sym->st_value + addend);
 }
 
+/* Adjust an address within a section.  Given OFFSET within SEC, return
+   the new offset within the section, based upon changes made to the
+   section.  Returns -1 if the offset is now invalid.
+   The offset (in abnd out) is in target sized bytes, however big a
+   byte may be.  */
+
 bfd_vma
 _bfd_elf_section_offset (bfd *abfd,
 			 struct bfd_link_info *info,
@@ -10477,12 +10483,17 @@ _bfd_elf_section_offset (bfd *abfd,
 				       offset);
     case SEC_INFO_TYPE_EH_FRAME:
       return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset);
+
     default:
       if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0)
 	{
+	  /* Reverse the offset.  */
 	  const struct elf_backend_data *bed = get_elf_backend_data (abfd);
 	  bfd_size_type address_size = bed->s->arch_size / 8;
-	  offset = sec->size - offset - address_size;
+
+	  /* address_size and sec->size are in octets.  Convert
+	     to bytes before subtracting the original offset.  */
+	  offset = (sec->size - address_size) / bfd_octets_per_byte (abfd) - offset;
 	}
       return offset;
     }