Tell gdb what xlen is when there's no ELF file.
authorTim Newsome <tim@sifive.com>
Wed, 13 Jul 2016 17:51:05 +0000 (10:51 -0700)
committerTim Newsome <tim@sifive.com>
Tue, 19 Jul 2016 18:24:25 +0000 (11:24 -0700)
This makes several spike32 tests pass that used to fail. Ideally gdb
wouldn't need to be told, but that's a project for another day.


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