Re: How can I access ELF Header from FOO-dis.c

[Shekhar Divekar <shekhar at cradle dot com>]

To explain my requirement more.

The target is a SoC supporting multiple ISAs. MACHs map to
ISAs x ArchRevision. So bfd_get_mach() can give me only the default
MACH for an ArchRevision. In CGEN_COMPUTE_MACH I depend on SECTION
name [which is diff for each ISA] and ArchRevision to select the MACH.

The ARCH + MACH scheme is insufficient to represent all variations
hence I have to e_flags to store ArchRevision info.

So pictorially we have

      TARGET_ARCH		[bfd_arch]
          |
	/   \
      /       \
     /         \
  ARCH_REV1     ARCH_REV2___
  |   |   |      |     |   |
ISA1 ISA2 ISA3  ISA1 ISA2 ISA3	[bfd_mach]

I have all the needed info in e_flags but I can't pass it to
disassembler without breaking the current bfd/cgen scheme.

Can someone suggest a good solution.

Thanks
Shekhar

Ian Lance Taylor wrote:
> Shekhar Divekar <shekhar@cradle.com> writes:
>
>
> > I am working on a port of binutils 2.14.90 to our target.
> > I want use CGEN_COMPUTE_MACH macro in print_insn
> > to decipher the mach for which I am disassembling.
> > Also we store the arch and mach info in e_flgas of
> > ELF header.
> >
> > How can I access ELF header information from
> > FOO-dis.c ?
>
>
> Normally a disassembler would get this information using
> bfd_get_arch() and bfd_get_mach().  Other parts of BFD would arrange
> to have the right information stored there.
>
> Ian