[Bug python/19399] New: add a way to get inferior's architecture

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

https://sourceware.org/bugzilla/show_bug.cgi?id=19399

            Bug ID: 19399
           Summary: add a way to get inferior's architecture
           Product: gdb
           Version: unknown
            Status: NEW
          Severity: normal
          Priority: P2
         Component: python
          Assignee: unassigned at sourceware dot org
          Reporter: tromey at sourceware dot org
  Target Milestone: ---

I'm writing an unwinder in Python.

I'd like to be able to instantiate an arch-specific unwinder class when
doing an unwind.  However, it is difficult to find the correct "current"
architecture to use.

It's not possible to use gdb.Frame.architecture(), because that requires
a frame -- but this is happening during unwinding.

The simplest thing for me would be if gdb.Inferior also had an architecture()
method.  This could return the inferior's gdbarch.


Meanwhile I'm not sure what workaround I can use.

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