[PATCH] Guard against killing unrelated processes in amd64-disp-step.exp

[Tom Tromey]

>>>>> "Rainer" == Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> writes:

Rainer> When testing current gdb trunk on Solaris/amd64, the whole session was
Rainer> reliably terminated by make check.  I could trace this to the following
Rainer> entry in gdb.arch/amd64-disp-step/gdb.log:

Thank you for the patch.

Rainer> If $inferior_pid doesn't refer a single process for some reason, this
Rainer> kill would terminate either a process group or the whole session.

I don't mind the patch, it seems like an improvement -- but I wonder why
this ends up as -1, and whether a fix belongs elsewhere.

Tom