[Bug breakpoints/15249] New: fine-grained breakpoint resetting

["tromey at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=15249

             Bug #: 15249
           Summary: fine-grained breakpoint resetting
           Product: gdb
           Version: unknown
            Status: NEW
          Severity: normal
          Priority: P2
         Component: breakpoints
        AssignedTo: unassigned@sourceware.org
        ReportedBy: tromey@redhat.com
    Classification: Unclassified


Right now, many inferior changes cause all breakpoints
to be re-set in gdb.  It would be more efficient if
this were done in a fine-grained way.  For example,
unmapping a .so may delete some breakpoint locations,
and may require some expression re-parses, but should
not affect locations in other objfiles.  Likewise,
adding an objfile could add locations to a breakpoint,
but should not affect any existing locations (and we
could go so far as to cache linespec results per-objfile,
so when objfile sharing is implemented, the results can
be immediately looked up...)

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