core file format spec?

[Jim Blandy]

>   > Where I can find the spec for the format of an x86 ELF core dump file?
>   > I've looked in "System V Application Binary Interface: Intel386
>   > Architecture Processor Supplement, Fourth Edition", and in "ABI+ for
>   > Intel Architecture, Edition 3.0.1", but haven't seen anything.
> I go right into BFD to find this kind of thing :-) ;-)

Well, I was really asking two questions:
- What is the actual current practice?  For this, BFD is fine; the
  Linux kernel sources work, too.
- Where is the current practice specified?  I would expect this to be
  prime ABI supplement material, but...