Add support for new pnacl native toolchain driver

build_tools/buildbot_common.sh

 #!/bin/bash
 # 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.
 
 RESULT=0
 MESSAGES=
 
 # SCRIPT_DIR must be defined by the including script
 readonly BASE_DIR="$(dirname ${SCRIPT_DIR})"
@@ skipping 55 matching lines @@
     BuildSuccess ${PACKAGE} ${NACL_ARCH}
   else
     BuildFailure ${PACKAGE} ${NACL_ARCH}
   fi
 }
 
 InstallPackageMultiArch() {
   echo "@@@BUILD_STEP ${TOOLCHAIN} $1@@@"
 
   if [ "${TOOLCHAIN}" = "pnacl" ]; then
-    arch_list="pnacl"
+    arch_list="le32"
   elif [ "${TOOLCHAIN}" = "emscripten" ]; then
     arch_list="emscripten"
   else
     arch_list="i686 x86_64 arm"
   fi
 
   export TOOLCHAIN
   for arch in ${arch_list}; do
     if ! RunCmd bin/webports -a ${arch} uninstall --all ; then
       BuildFailure $1 ${arch}
@@ skipping 11 matching lines @@
   done
   BuildSuccess $1 all
 }
 
 CleanToolchain() {
   # Don't use TOOLCHAIN and NACL_ARCH here as we don't want to
   # clobber the globals.
   TC=$1
 
   if [ "${TC}" = "pnacl" ]; then
-    arch_list="pnacl"
+    arch_list="le32 pnacl"
   elif [ "${TC}" = "emscripten" ]; then
     arch_list="emscripten"
   elif [ "${TC}" = "glibc" ]; then
     arch_list="i686 x86_64"
   else
     arch_list="i686 x86_64 arm"
   fi
 
   for ARCH in ${arch_list}; do
     if ! RunCmd bin/webports -a ${ARCH} -t ${TC} clean --all; then
       TOOLCHAIN=${TC} BuildFailure clean ${ARCH}
       exit 1
     fi
   done
 }
 
 CleanCurrentToolchain() {
   echo "@@@BUILD_STEP clean@@@"
   CleanToolchain ${TOOLCHAIN}
 }