ld-srec failure on x86-64

[Andreas Jaeger]

I've reported in november [1]that the ld-srec testcase fails on
x86_64-linux-gnu.

I did now a binary search for the patch that caused this failure and
it's this patch [2]:

--- bfd/ChangeLog       12 Nov 2002 06:21:05 -0000      1.1812
+++ bfd/ChangeLog       12 Nov 2002 07:35:25 -0000      1.1813
@@ -1,5 +1,41 @@
 2002-11-12  Alan Modra  <amodra@bigpond.net.au>
 
+       * elf-bfd.h (struct cie_header): Move from elf_eh-frame.c.
+       (struct cie, struct eh_cie_fde, struct eh_frame_sec_info): Likewise.
+       (struct eh_frame_array_ent, struct eh_frame_hdr_info): Likewise.
+       (enum elf_link_info_type): Remove ELF_INFO_TYPE_EH_FRAME_HDR.
+       (struct eh_frame_hdr_info): Add "hdr_sec", remove "split".
+       (struct elf_link_hash_table): Add eh_info.
+       (struct elf_obj_tdata): Change eh_frame_hdr to an asection *.
+       (_bfd_elf_discard_section_eh_frame): Update prototype.
+       (_bfd_elf_discard_section_eh_frame_hdr): Likewise.
+       (_bfd_elf_write_section_eh_frame): Likewise.
+       (_bfd_elf_write_section_eh_frame_hdr): Likewise.
+       * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame): Remove "ehdrsec"
+       param.  Get "hdr_info" from link hash table.
+       (_bfd_elf_discard_section_eh_frame_hdr): Remove "sec" param.  Get
+       header section from link hash table.  Save header section to elf_tdata.
+       (_bfd_elf_maybe_strip_eh_frame_hdr): Remove local "sec".  Use
+       header section from link hash table.  Don't alloc hdr_info.  Clear
+       hdr_sec instead of setting "strip".
+       (_bfd_elf_eh_frame_section_offset): Formatting.
+       (_bfd_elf_write_section_eh_frame): Remove "ehdrsec", add "info" param.
+       Get header section from link hash table.
+       (_bfd_elf_write_section_eh_frame_hdr): Remove "sec", add "info" param.
+       Get header section from link hash table.
+       * elf.c (map_sections_to_segments): Use cached eh_frame_hdr.
+       (get_program_header_size): Likewise.
+       (_bfd_elf_section_offset): Formatting.
+       * elflink.h (elf_link_create_dynamic_sections): Stash eh frame header
+       section pointer in link hash table.
+       (elf_bfd_final_link): Adjust _bfd_elf_write_section_eh_frame_hdr
+       and _bfd_elf_write_section_eh_frame calls.  Update comment about
+       eh_frame entries.
+       (elf_bfd_discard_info): Adjust _bfd_elf_discard_section_eh_frame and
+       _bfd_elf_discard_section_eh_frame_hdr calls.  Remove "ehdr".
+
+       * po/SRC-POTFILES.in: Regenerate.
+

For reference, the failure is this one:
/usr/src/aj/Hunt-GCC/build/ld/../binutils/objcopy -O srec tmpdir/sr1 tmpdir/sr1.sr
comparison failure 3:
S214001020100003053001100003052601100003051B
S214001020100003054801100003053E0110000305EB
FAIL: S-records

Note that this test passes:
PASS: S-records with constructors

Any ideas why this fails on x86-64?  I'm lost - and don't know enough
about S-records to make a better guess.  

Can I convert those S-records back into another format that is more
readable to me?  The obvious one does not work:
$ objcopy -I symbolsrec -O elf64-x86-64 sr1.sr aj
objcopy: Warning: Output file cannot represent architecture UNKNOWN!

Andreas

Footnotes: 
[1]  http://sources.redhat.com/ml/binutils/2002-11/msg00557.html

[2]  http://sources.redhat.com/ml/binutils/2002-11/msg00347.html

-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
    http://www.suse.de/~aj