Introduce new section flag: SEC_ELF_OCTETS

All symbols, sizes and relocations in this section are octets instead of
bytes.  Required for DWARF debug sections as DWARF information is
organized in octets, not bytes.

bfd/
	* section.c (struct bfd_section): New flag SEC_ELF_OCTETS.
	* archures.c (bfd_octets_per_byte): New parameter sec.
	If section is not NULL and SEC_ELF_OCTETS is set, one octet es
	returned [ELF targets only].
	* bfd.c (bfd_get_section_limit): Provide section parameter to
	bfd_octets_per_byte.
	* bfd-in2.h: regenerate.
	* binary.c (binary_set_section_contents): Move call to
	bfd_octets_per_byte into section loop. Provide section parameter
	to bfd_octets_per_byte.
	* coff-arm.c (coff_arm_reloc): Provide section parameter
	to bfd_octets_per_byte.
	* coff-i386.c (coff_i386_reloc): likewise.
	* coff-mips.c (mips_reflo_reloc): likewise.
	* coff-x86_64.c (coff_amd64_reloc): likewise.
	* cofflink.c (_bfd_coff_link_input_bfd): likewise.
	(_bfd_coff_reloc_link_order): likewise.
	* elf.c (_bfd_elf_section_offset): likewise.
	(_bfd_elf_make_section_from_shdr): likewise.
	Set SEC_ELF_OCTETS for sections with names .gnu.build.attributes,
	.debug*, .zdebug* and .note.gnu*.
	* elf32-msp430.c (rl78_sym_diff_handler): Provide section parameter
	to bfd_octets_per_byte.
	* elf32-nds.c (nds32_elf_get_relocated_section_contents): likewise.
	* elf32-ppc.c (ppc_elf_addr16_ha_reloc): likewise.
	* elf32-pru.c (pru_elf32_do_ldi32_relocate): likewise.
	* elf32-s12z.c (opru18_reloc): likewise.
	* elf32-sh.c (sh_elf_reloc): likewise.
	* elf32-spu.c (spu_elf_rel9): likewise.
	* elf32-xtensa.c (bfd_elf_xtensa_reloc): likewise
	* elf64-ppc.c (ppc64_elf_brtaken_reloc): likewise.
	(ppc64_elf_addr16_ha_reloc): likewise.
	(ppc64_elf_toc64_reloc): likewise.
	* elflink.c (bfd_elf_final_link): likewise.
	(bfd_elf_perform_complex_relocation): likewise.
	(elf_fixup_link_order): likewise.
	(elf_link_input_bfd): likewise.
	(elf_link_sort_relocs): likewise.
	(elf_reloc_link_order): likewise.
	(resolve_section): likewise.
	* linker.c (_bfd_generic_reloc_link_order): likewise.
	(bfd_generic_define_common_symbol): likewise.
	(default_data_link_order): likewise.
	(default_indirect_link_order): likewise.
	* srec.c (srec_set_section_contents): likewise.
	(srec_write_section): likewise.
	* syms.c (_bfd_stab_section_find_nearest_line): likewise.
	* reloc.c (_bfd_final_link_relocate): likewise.
	(bfd_generic_get_relocated_section_contents): likewise.
	(bfd_install_relocation): likewise.
	For section which have SEC_ELF_OCTETS set, multiply output_base
	and output_offset with bfd_octets_per_byte.
	(bfd_perform_relocation): likewise.
include/
	* coff/ti.h (GET_SCNHDR_SIZE, PUT_SCNHDR_SIZE, GET_SCN_SCNLEN),
	(PUT_SCN_SCNLEN): Adjust bfd_octets_per_byte calls.
binutils/
	* objdump.c (disassemble_data): Provide section parameter to
	bfd_octets_per_byte.
	(dump_section): likewise
	(dump_section_header): likewise. Show SEC_ELF_OCTETS flag if set.
gas/
	* as.h: Define SEC_OCTETS as SEC_ELF_OCTETS if OBJ_ELF.
	* dwarf2dbg.c: (dwarf2_finish): Set section flag SEC_OCTETS for
	.debug_line, .debug_info, .debug_abbrev, .debug_aranges, .debug_str
	and .debug_ranges sections.
	* write.c (maybe_generate_build_notes): Set section flag
	SEC_OCTETS for .gnu.build.attributes section.
	* frags.c (frag_now_fix): Don't divide by OCTETS_PER_BYTE if
	SEC_OCTETS is set.
	* symbols.c (resolve_symbol_value): Likewise.
ld/
	* ldexp.c (fold_name): Provide section parameter to
	bfd_octets_per_byte.
	* ldlang (init_opb): New argument s. Set opb_shift to 0 if
	SEC_ELF_OCTETS for the current section is set.
	(print_input_section): Pass current section to init_opb.
	(print_data_statement,print_reloc_statement,
	print_padding_statement): Likewise.
	(lang_check_section_addresses): Call init_opb for each
	section.
	(lang_size_sections_1,lang_size_sections_1,
	lang_do_assignments_1): Likewise.
	(lang_process): Pass NULL to init_opb.

2 files changed, 14 insertions, 4 deletions

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index c4f7e3d..7c0d0fe 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,10 @@
+2019-11-25  Christian Eggers  <ceggers@gmx.de>
+
+	* objdump.c (disassemble_data): Provide section parameter to
+	bfd_octets_per_byte.
+	(dump_section): likewise
+	(dump_section_header): likewise. Show SEC_ELF_OCTETS flag if set.
+
 2019-11-21  Alan Modra  <amodra@gmail.com>
 
 	PR 273
diff --git a/binutils/objdump.c b/binutils/objdump.c
index 1be3b23..115f1fc 100644
--- a/binutils/objdump.c
+++ b/binutils/objdump.c
@@ -532,7 +532,7 @@ static void
 dump_section_header (bfd *abfd, asection *section, void *data)
 {
   char *comma = "";
-  unsigned int opb = bfd_octets_per_byte (abfd);
+  unsigned int opb = bfd_octets_per_byte (abfd, section);
   int longest_section_name = *((int *) data);
 
   /* Ignore linker created section.  See elfNN_ia64_object_p in
@@ -584,7 +584,10 @@ dump_section_header (bfd *abfd, asection *section, void *data)
       PF (SEC_COFF_NOREAD, "NOREAD");
     }
   else if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
-    PF (SEC_ELF_PURECODE, "PURECODE");
+    {
+      PF (SEC_ELF_OCTETS, "OCTETS");
+      PF (SEC_ELF_PURECODE, "PURECODE");
+    }
   PF (SEC_THREAD_LOCAL, "THREAD_LOCAL");
   PF (SEC_GROUP, "GROUP");
   if (bfd_get_arch (abfd) == bfd_arch_mep)
@@ -2682,7 +2685,7 @@ disassemble_data (bfd *abfd)
   disasm_info.arch = bfd_get_arch (abfd);
   disasm_info.mach = bfd_get_mach (abfd);
   disasm_info.disassembler_options = disassembler_options;
-  disasm_info.octets_per_byte = bfd_octets_per_byte (abfd);
+  disasm_info.octets_per_byte = bfd_octets_per_byte (abfd, NULL);
   disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES;
   disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END;
   disasm_info.disassembler_needs_relocs = FALSE;
@@ -3459,7 +3462,7 @@ dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED)
   bfd_vma addr_offset;
   bfd_vma start_offset;
   bfd_vma stop_offset;
-  unsigned int opb = bfd_octets_per_byte (abfd);
+  unsigned int opb = bfd_octets_per_byte (abfd, section);
   /* Bytes per line.  */
   const int onaline = 16;
   char buf[64];