- This patch provided API for decoding the traceback table info and unit test for the these API.
- Another patchs will do the following things:
2.1 added a new option --traceback-table to decode the trace back table information for xcoff object file when
using llvm-objdump to disassemble the xcoff objfile.
2.2 print out the traceback table information for llvm-objdump.
As previously suggested, I'd move all llvm-objdump related changes to a separate patch. This patch should focus on the data structure and API, then another patch can make use of it within llvm-objdump etc.