Difference between --oformat binary, and objcopy -O binary of --oformat elf32-i386

[H.J. Lu]

On Tue, Jul 19, 2016 at 5:33 PM, Alan Modra <amodra@gmail.com> wrote:
> On Tue, Jul 19, 2016 at 07:22:36AM -0700, H.J. Lu wrote:
>> > HJ, it would be nice if x86 implemented something like elf32-ppc.c
>> > ppc_elf_unhandled_reloc to give an error at link time for all the
>> > relocs that the generic linker can't handle.
>> >
>>
>> I see:
>>
>>  HOWTO (R_PPC_TLSLD,
>>          0,                     /* rightshift */
>>          2,                     /* size (0 = byte, 1 = short, 2 = long) */
>>          32,                    /* bitsize */
>>          FALSE,                 /* pc_relative */
>>          0,                     /* bitpos */
>>          complain_overflow_dont, /* complain_on_overflow */
>>          bfd_elf_generic_reloc, /* special_function */
>>          "R_PPC_TLSLD",         /* name */
>>          FALSE,                 /* partial_inplace */
>>          0,                     /* src_mask */
>>          0,                     /* dst_mask */
>>          FALSE),                /* pcrel_offset */
>>
>>
>> Can generic linker handle R_PPC_TLSLD?
>
> Nope.  However, this one is a marker reloc (src_mask and dst_mask both
> 0 result in no relocation) so it is OK to ignore.
>

Can bfd_perform_relocation handle ELF relocations which aren't
one of

  BFD_RELOC_64,
  BFD_RELOC_32,
  BFD_RELOC_26,
  BFD_RELOC_24,
  BFD_RELOC_16,
  BFD_RELOC_14,
  BFD_RELOC_8,
  BFD_RELOC_64_PCREL,
  BFD_RELOC_32_PCREL,
  BFD_RELOC_24_PCREL,
  BFD_RELOC_16_PCREL,
  BFD_RELOC_12_PCREL,
  BFD_RELOC_8_PCREL,


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H.J.