Regression tests for ctf reader: Avoid duplicating files

[Guillermo Martinez]

Hello,

I'm working in the implementation of regression tests for ctf reader
(tests/test-read-ctf.cc), it's very similar to test-read-dwarf.cc, so
they have some C and header source files that are common among
them, e.g:

      tests/data/test-read-ctf/PR27700/include-dir/priv.h
      tests/data/test-read-ctf/PR27700/include-dir/pub.h
      tests/data/test-read-ctf/PR27700/pub-incdir/inc.h
      tests/data/test-read-ctf/PR27700/test-PR27700.c
      tests/data/test-read-ctf/test-PR26568-1.c
      tests/data/test-read-ctf/test-PR26568-2.c

So, we're planning move those common source file to:

tests/data/test-read-common/

But we still need *two different* binary files with the debugging
information: DWARF (-gdwarf) and CTF (-gctf), that they would 
need to be recompiled. The current implementation to test ctf reader
use binary files previously compiled, so there is one file for 
each binary format:
   
     tests/data/test-read-*ctf*/test-PR26568-1.o
     ...
     tests/data/test-read-*dwarf*/test-PR26568-1.o

So, Are you agree with this approach?

We are looking for the way to avoid duplicating files :-)

Thanks in advanced for your comments!

Sincerely,
Guillermo