icf: Implement identical code folding.
relaxation: Refine stub searching for the folded symbols.
relaxation: Support searching stub in a backward direction.
arm: Refine max branch offset using attributes.
icf: Support folding ctors and dtors correctly.
Fix cmake build.
Update makefile for crc32.
Add doxygen configure file.
Add hook for target dependent post-merge action.
Add the scaffold for ARM.extab compressor.
Add code to check .ARM.extab relocations.
TBS
Debugging.