Remove i686-hosted Linux build and start switching to new directory layout

pnacl/driver/pnacl-llc.py

-#!/usr/bin/python
-# Copyright (c) 2014 The Native Client Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# This is a thin wrapper for native LLC. This is not meant to be used by
-# the user, only by the build system.
-
-import subprocess
-
-from driver_env import env
-import driver_tools
-
-EXTRA_ENV = {
-  'ARGS'   : '',
-  'INPUT'  : '',
-  'OUTPUT' : '',
-  # Binary output may go to stdout (when -o was not specified)
-  'HAVE_OUTPUT' : '0',
-}
-
-PATTERNS  = [
-  (('-o','(.*)'),      "env.set('OUTPUT', pathtools.normalize($0))\n" +
-                       "env.set('HAVE_OUTPUT', '1')"),
-  ( '(-.*)',           "env.append('ARGS', $0)"),
-  ( '(.*)',            "env.set('INPUT', $0)"),
-]
-
-def main(argv):
-  env.update(EXTRA_ENV)
-  driver_tools.ParseArgs(argv, PATTERNS)
-
-  driver_tools.CheckPathLength(env.getone('INPUT'))
-  driver_tools.CheckPathLength(env.getone('OUTPUT'))
-
-  driver_tools.Run(
-      '"${LLVM_PNACL_LLC}" ${ARGS} ' +
-      '${HAVE_OUTPUT ? -o ${OUTPUT}} ' +
-      '${INPUT}')
-
-  # only reached in case of no errors
-  return 0
-
-def get_help(unused_argv):
-  # Set errexit=False -- Do not exit early to allow testing.
-  # For some reason most the llvm tools return non-zero with --help,
-  # while all of the gnu tools return 0 with --help.
-  # On windows, the exit code is also inconsistent =(
-  code, stdout, stderr = driver_tools.Run('${LLVM_PNACL_LLC} -help',
-                                          redirect_stdout=subprocess.PIPE,
-                                          redirect_stderr=subprocess.STDOUT,
-                                          errexit=False)
-
-  help = """
-LLVM static compiler
-
-To translate PNaCl bitcode, use pnacl-translate instead.
-
-""" + stdout
-
-  return help