[Bug sim/21042] New: arm-none-eabi-run no longer recognizes -m option

["sandra at codesourcery dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=21042

            Bug ID: 21042
           Summary: arm-none-eabi-run no longer recognizes -m option
           Product: gdb
           Version: HEAD
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: sim
          Assignee: unassigned at sourceware dot org
          Reporter: sandra at codesourcery dot com
                CC: vapier at gentoo dot org
  Target Milestone: ---

We have a fairly ancient Dejagnu board file that causes the GDB simulator to be
invoked like:

% arm-none-eabi-run -m 100663296 a.out
arm-none-eabi-run: unrecognized option '-m'
Use --help for a complete list of options.

The list of options printed by --help has basically nothing to do with the ones
documented in run.1, which seems to be the only documentation for the
simulator.  The former doesn't list -m while the latter does.

I guess --memory-size is the replacement for -m, but why was backward
compatibility broken?  At the very least the documentation ought to be updated
to reflect the currently-supported options.

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