- Backport support for i386 nop memory instructions.
    - Fix debuginfo addresses resolving for --emit-relocs Linux kernels (BZ
        203661, from Jan Kratochvil, like the remaining changes).
    - Bugfix segv on the source display by ^X 1 (fixes Patch130, BZ
    200048).
    - Do not step into the PPC solib trampolines (BZ 200533).
    - Fix exec() from threaded program, partial CVS backport (BZ 182116).
    - Fix occasional failure to load shared libraries (BZ 146810).
    - Bugfix object names completion (fixes Patch116, BZ 193763).
    - Avoid crash of 'info threads' if stale threads exist (BZ 195429).
    - Handle corrupted or missing location list information (BZ 196439).