Cherry-pick 7.10 changes to 7.11.

Cherry-picked commits:
    e24220e gdb: disable python when python is not available.
    d73c546 use snprintf instead of strlcpy for portablitly
    c64829b Fallback to open if multifs_open fails.
    2177073 Fix gdbserver process interruption.
    b711aa8 Add Unix domain socket support to gdbserver 7.9.1

Change-Id: I2cba7ae5c05503afb81f732cbd78440ebd2c45e8
8 files changed
tree: 9cfd42abbc8a960fdd60dc0755974f270414cbd5
  1. gdb-7.11/
  2. build-gdb.sh
  3. build.py