[RFA] testsuite: Add a test for passing of environment variables to inferior

[Corinna Vinschen]

On Oct  4 14:36, Pierre Muller wrote:
>   Following Eli's comment that it was not clear
> what I wanted to achieve, I wrote a new test.
> 
>   Manually checking CVS GDB for mingw, Eli's patch
> gives the correct output.
>   But Stock Cygwin GDB currently passes none of these
> TEST_GDB_XXX variables to inferior.
>   Even the patch that I sent earlier is not correct:
> it still fails for the last test,
> once TEST_GDB_VAR1 has been set into GDB environment list,
> it doesn't get removed on the last start of the inferior...
> 
>   Corinna, I think this is the reason why I wanted to restore
> the original environment layout (to avoid leaving unset
> variables around.)

Yes, that would be necessary.  I'm wondering if we can't just utilze the
global environ variable for this and spare us all the hassle.  Something
along these lines:

  char **old_env = environ;
  environ = in_env;
  cygwin_internal (CW_SYNC_WINENV);
  CreateProcessW (NULL environment pointer);
  environ = old_env;

>   Anyhow, one more test in the testsuite to test
> an unchecked feature is always a good thing, no?

No doubt.


Corinna

-- 
Corinna Vinschen
Cygwin Project Co-Leader
Red Hat