ELF Tool Chain Code

Add support for DWARF5 .debug_str_offsets section.

Submitted by: Toby Lloyd Davies (original patch)
Ticket: #620

libdwarf: Fix a memory leak.

Submitted by: Toby Lloyd Davies
Ticket: #619

Add initial support for the revised DWARF5 line number section header.

Ticket: #611

Add support for DWARF5 .debug_line_str section.

Ticket: #611

dwarf_attrval_unsigned() should accept DW_FORM_sec_offset.

This fixes a use case for readelf: readelf uses this call to fetch
the value for DW_AT_stmt_list, which use this form to refer
to an offset in .debug_line section.

Implemented new API dwarf_next_cu_header_d().

Comparing with dwarf_next_cu_header_c(), this new revision adds support
for returning the DWARF5 unit type.

Add strings for attributes, forms, tags and unit types added in DWARF5.

Ticket: #611

Fix typos.

Add initial support for parsing DWARF5 .debug_info section.

Ticket: #611

Add initial support for parsing forms added by the DWARF5 standard.

Ticket: #611