Update PNaCl to LLVM/Clang/Libcxx 223109 (nacl-change)

pnacl/driver/pnacl-ld.py

 #!/usr/bin/python
 # 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.
 
 from driver_tools import ArchMerge, DriverChain, GetArch, \
     ParseArgs, ParseTriple, RunDriver, RunWithEnv, SetArch, \
     SetExecutableMode, TempNameGen, UnrecognizedOption
 from driver_env import env
 from driver_log import Log
@@ skipping 19 matching lines @@
   'STRIP_MODE' : 'none',
 
   'STRIP_FLAGS'      : '${STRIP_FLAGS_%STRIP_MODE%}',
   'STRIP_FLAGS_all'  : '-s',
   'STRIP_FLAGS_debug': '-S',
 
   'OPT_INLINE_THRESHOLD': '100',
   'OPT_LEVEL': '',  # Default opt is 0, but we need to know if it's explicitly
                     # requested or not, since we don't want to propagate
                     # the value to TRANSLATE_FLAGS if it wasn't explicitly set.
-  'OPT_LTO_FLAGS': '-std-link-opts -disable-internalize',
+  'OPT_LTO_FLAGS': '-std-link-opts',
   'OPT_FLAGS': '${#OPT_LEVEL && !OPT_LEVEL == 0 ? ${OPT_LTO_FLAGS}} ' +
                '-inline-threshold=${OPT_INLINE_THRESHOLD} ',
 
   'TRANSLATE_FLAGS': '${PIC ? -fPIC} ${!USE_STDLIB ? -nostdlib} ' +
                      '${#SONAME ? -Wl,--soname=${SONAME}} ' +
                      '${#OPT_LEVEL ? -O${OPT_LEVEL}} ' +
                      '--allow-llvm-bitcode-input ' +
                      '${CXX_EH_MODE==zerocost ? --pnacl-allow-zerocost-eh} ' +
                      '${TRANSLATE_FLAGS_USER}',
 
@@ skipping 551 matching lines @@
   -O<opt-level>               Optimize output file
   -M, --print-map             Print map file on standard output
   --whole-archive             Include all objects from following archives
   --no-whole-archive          Turn off --whole-archive
   -s, --strip-all             Strip all symbols
   -S, --strip-debug           Strip debugging symbols
   -u SYM, --undefined=SYM     Start with undefined reference to SYM
 
   -help | -h                  Output this help.
 """