Add ARM toolchain support.

build_tools/buildbot_selector.sh

 #!/bin/bash
 # Copyright (c) 2012 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.
 
 set -x
 set -e
 
 SCRIPT_DIR="$(cd $(dirname $0) && pwd)"
 export NACL_SDK_ROOT="${SCRIPT_DIR}/../pepper_XX"
 
 RESULT=1
 
 # TODO: Eliminate this dependency if possible.
 # This is required on OSX so that the naclports version of pkg-config can be
 # found.
 export PATH=${PATH}:/opt/local/bin
 
 StartBuild() {
   cd $2
-  export NACL_PACKAGES_BITSIZE=$3
-  echo "@@@BUILD_STEP $3-bit setup@@@"
+  export NACL_ARCH=$3
+  echo "@@@BUILD_STEP $3 setup@@@"
   if ! ./$1 ; then
     RESULT=0
   fi
 }
 
 # Ignore 'periodic-' prefix.
 BUILDBOT_BUILDERNAME=${BUILDBOT_BUILDERNAME#periodic-}
 
 # Decode buildername.
 readonly BNAME_REGEX="(.+)-(.+)-(.+)"
 if [[ ${BUILDBOT_BUILDERNAME} =~ $BNAME_REGEX ]]; then
   readonly OS=${BASH_REMATCH[1]}
   readonly LIBC=${BASH_REMATCH[2]}
   readonly SHARD=${BASH_REMATCH[3]}
 else
   echo "Bad BUILDBOT_BUILDERNAME: ${BUILDBOT_BUILDERNAME}" 1>&2
   exit 1
 fi
 
 # This a temporary hack until the pnacl support is more mature
-if [ ${LIBC} == "pnacl_newlib" ] ; then
+if [ ${LIBC} = "pnacl_newlib" ] ; then
   ${SCRIPT_DIR}/bots/pnacl_bots.sh
   exit 0
 fi
 
 # Select platform specific things.
 if [ "$OS" = "mac" ]; then
   readonly PYTHON=python
   # Use linux config on mac too.
   readonly BOT_OS_DIR=linux
   readonly TOOLCHAIN_CLEANUP='rm -rf ${SCRIPT_DIR}/native_client_sdk_*'
 elif [ "$OS" = "linux" ]; then
   readonly PYTHON=python
   readonly BOT_OS_DIR=linux
   readonly TOOLCHAIN_CLEANUP='rm -rf ${SCRIPT_DIR}/native_client_sdk_*'
 elif [ "$OS" = "win" ]; then
   readonly PYTHON=python.bat
   readonly BOT_OS_DIR=windows
   readonly TOOLCHAIN_CLEANUP='rm -rf c:/native_client_sdk'
 else
   echo "Bad OS: ${OS}" 1>&2
   exit 1
 fi
 
 # Select libc
-if [ "$LIBC" == "glibc" ]; then
+if [ "$LIBC" = "glibc" ]; then
   export NACL_GLIBC=1
-elif [ "$LIBC" == "newlib" ]; then
+elif [ "$LIBC" = "newlib" ]; then
   export NACL_GLIBC=0
 else
   echo "Bad LIBC: ${LIBC}" 1>&2
   exit 1
 fi
 
 # Compute script name.
 readonly SCRIPT_NAME="nacl-install-${BOT_OS_DIR}-ports-${SHARD}.sh"
 
 # Goto src/
 cd ${SCRIPT_DIR}/..
 
 # Cleanup.
 echo "@@@BUILD_STEP Cleanup@@@"
 rm -rf ${SCRIPT_DIR}/toolchain
 ${TOOLCHAIN_CLEANUP}
 make clean
 
 # Install SDK.
 echo "@@@BUILD_STEP Install Latest SDK@@@"
 ${PYTHON} build_tools/buildbot_sdk_setup.py
 
 # Build 32-bit.
-StartBuild ${SCRIPT_NAME} ${SCRIPT_DIR}/bots/${BOT_OS_DIR} 32
+StartBuild ${SCRIPT_NAME} ${SCRIPT_DIR}/bots/${BOT_OS_DIR} i686
 if [[ $RESULT != 0 ]]; then
   # Build 64-bit.
-  StartBuild ${SCRIPT_NAME} ${SCRIPT_DIR}/bots/${BOT_OS_DIR} 64
+  StartBuild ${SCRIPT_NAME} ${SCRIPT_DIR}/bots/${BOT_OS_DIR} x86_64
 fi
 
 exit 0