[Bug cli/27125] unwanted interaction of [-ex "bt"] with [-batch -return-child-result]. used to work in gdb 8.1

["kelly at 219design dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=27125

--- Comment #2 from kelly at 219design dot com ---
prior to commit b0f492b90f3d13da8a, we had:


  if (batch_flag)
    {
      /* We have hit the end of the batch file.  */
      quit_force (NULL, 0);
    }


after that commit, we have (and currently still have):

  if (batch_flag)
    {
      int error_status = EXIT_FAILURE;
      int *exit_arg = ret == 0 ? &error_status : NULL;

      /* We have hit the end of the batch file.  */
      quit_force (exit_arg, 0);
    }

In the absence of "-return-child-result", I wholeheartedly agree with the
outcome of commit b0f492b90f3d13da8a.

When using "-return-child-result", however, it isn't obvious to me whether the
new behavior is best.

I would pose the question to users of "-return-child-result":

When "-return-child-result" is active, should that result in executing the old
(pre-b0f492b90f3d13da8a) behavior of quit_force? The first variation shown
above?

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