[RFA] reverse debugging tests

[Tom Tromey]

>>>>> "Michael" == Michael Snyder <msnyder@vmware.com> writes:

Michael> Note, I've only done one of the several tests here --
Michael> if this change is approved, I'll change the others the same way.

Thanks for doing this.

Michael> So I've made two changes:
Michael> 1) In place of "if ![target_info exists gdb,can_reverse]"
Michael> substitute
Michael> +if [istarget "*linux*"] then {
Michael> +    if { ![istarget "i?86-*linux*"] && ![istarget "amd64-*linux*"] } then {
Michael> +       # test process record on i?86 and amd64 linux
Michael> +       return;
Michael> +    }
Michael> +}

I assume the old gdb,can_reverse and gdb,use_precord target settings no
longer make sense.

I would recommend putting each of these snippets into a function in
lib/gdb.exp.  That way it is simpler to update them in the future.

Michael> +       gdb_test "record" "" "Turn on process record"
Michael> +       # FIXME: command ought to acknowledge, so we can test if it
Michael> succeeded.

This seems like a good idea.

Otherwise this looks fine to me.

Tom