[Bug tui/11623] New: GDB assertion in TUI mode, with ARM elf loaded application

["eblotml at free dot fr" <sourceware-bugzilla at sourceware dot org>]

In TUI mode, when [Ctrl]-X, 2 is pressed from the single source window mode, GDB core dumps with the 
following trace message:
 
This GDB was configured as "--host=x86_64-apple-darwin10.3.0 --target=arm-eabi".
Reading symbols from /Users/eblot/Sources/blatann.elf...done.

(gdb) gdbarch.c:1455: internal-error: gdbarch_addr_bit: Assertion `gdbarch != NULL' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.

The problem occurs with 7.0.1 and 7.1 builds

The same problem is observed in the reverse action order:

1. Start up arm-eabi-gdbtui without a file to debug.
2. Successfully switch to double window mode with [Ctrl]-X, 2
3. Load the application to debug: file blatann.elf
    -> same crash occurs, with the same message

-- 
           Summary: GDB assertion in TUI mode, with ARM elf loaded
                    application
           Product: gdb
           Version: 7.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tui
        AssignedTo: unassigned at sourceware dot org
        ReportedBy: eblotml at free dot fr
                CC: gdb-prs at sourceware dot org
 GCC build triplet: x86_64-apple-darwin10.3.0
  GCC host triplet: x86_64-apple-darwin10.3.0
GCC target triplet: arm-eabi


http://sourceware.org/bugzilla/show_bug.cgi?id=11623

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