[PATCH] libdw: Add support for reading DW_FORM_addrx[1234] in .debug_addr.

[Mark Wielaard]

On Fri, 2018-03-30 at 17:56 +0200, Mark Wielaard wrote:
> Recognize the new .debug_addr section. The CU will now hold a new
> address base offset in that section for that CU. dwarf_form_addr will
> decode DW_FORM_addrx[1234] and return addresses using that address
> base from the .debug_addr. A new internal function read_3ubyte_unaligned
> will try to read a 24-bit value depending on endianness of the underlying
> file.

Pushed to master.